A method to enable efficient data transfer for cell switch in conjunction with LTM operation is provided. The method of the terminal includes receiving from a base station a Radio Resource Control (RRC) reconfiguration message, receiving from the base station a specific Medium Access Control (MAC) Control Element (CE) wherein the MAC CE instructs the terminal to perform LTM cell switch procedure, performing a cell selection to a specific cell if reconfiguration with sync failure is detected and triggering either a first procedure for the specific cell or a second procedure in the specific cell depending on the selected cell.
A method to enable efficient data transfer for cell switch in conjunction with LTM operation is provided. The method of the terminal includes receiving from a specific Medium Access Control (MAC) Control Element (CE), deriving a second key-derivation-key based on a specific first key-derivation-key, wherein the specific first key-derivation-key is determined based on the specific integer in the MAC CE, deriving a first encryption-key based on the second key-derivation-key, configuring a specific set of Packet Data Convergence Protocol (PDCP) entities with the first encryption-key and reestablishing the specific set of PDCP entities.
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes transmitting a UECapabilityInformation, transmitting a provideCapabilities, receiving a ProvideAssistanceData, receiving a RRCRelease and transmitting a positioning SRS in RRC_INACTIVE state. The RRCRelease includes a first information and a second information, the first information is related to a configuration of SRS in RRC_INACTIVE and the second information is related to a BWP.
A method and apparatus to support XR services is provided. Method for supporting XR services includes triggering a buffer status report (BSR) in case that uplink data for a specific logical channel becomes available, determining a format of the BSR based on amount of specific data at a first time point, determining a value to be set in a specific bit of the BSR based on amount of specific data at a second time point in case that the BSR is first format, and transmitting a medium access control (MAC) protocol data unit (PDU), wherein the MAC PDU comprises the BSR. The amount of specific data at a first time point is amount of specific data when the MAC PDU is to be built. The amount of specific data at a second time point is amount of specific data when amount of resource to be allocated to logical channel is determined. The specific bit is related to buffer size table.
A method and apparatus for XR services is provided. The method for supporting XR services includes receiving from a base station a RRCReconfiguration message that comprises a parameter for delay status report and transmitting to the base station a Medium Access Control (MAC) Control Element (CE) for delay status report in case that a specific condition is fulfilled for the specific LCG. The MAC CE comprises a bitmap related to a plurality of LCGs and delay status for the specific LCG. The delay status comprises a first set of delay status fields and a second set of delay status fields. The first set of delay status fields comprises a buffer size field indicating amount of a first set of data units. The second set of delay status fields comprises the buffer size field indicating amount of a second set of data units.
A method and apparatus to improve uplink scheduling efficiency is provided. This disclosure provides methods and apparatus to selecting format for a triggered BSR with consideration on RRC configuration and amount of data to be reported and number of logical channel groups to be reported. With the method, more accurate reporting is enabled when certain conditions are fulfilled.
A method and apparatus to enhance uplink coverage is provided. Method for enhancing uplink coverage includes receiving a SIB1 in a cell, wherein the SIB1 comprises one or more sets of random access channel (RACH) common configuration parameters, initiating random access procedure for system information request with message 1 repetition, determining a preamble index corresponding to the SI message and performing preamble transmission based on a specific preamble target power. The specific preamble target power is determined based on a first parameter related to preamble target power in a second set of system information request configuration parameters in case that the second set of system information request configuration parameters comprises a set of RACH generic configuration parameters.
A method to enable efficient data transfer for cell switch in conjunction with LTM operation is provided. The method of the terminal includes receiving from a base station a RRC reconfiguration message, receiving from the base station a specific MAC PDU that contains the first identifier of a specific configuration, discarding for a first set of radio bearers all stored PDCP SDUs and PDCP PDUs, and performing for a second set of radio bearers transmission of PDCP SDUs after reset of ROHC protocol. The first set of radio bearers comprises specific signaling radio bearers and the second set of radio bearers comprises specific data radio bearers.
A method and apparatus to support enhanced retransmission is provided. Method for supporting enhanced retransmission includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a parameter indicating a remaining time threshold related to a radio bearer and a parameter indicating a maximum retransmission number for a Radio Link Control (RLC) entity that is associated with the radio bearer, and performing retransmission of a specific RLC Service Data Unit (SDU) in case that at least one byte of the specific RLC SDU has been transmitted and remaining time of a Packet Data Convergence Protocol (PDCP) SDU associated the specific RLC SDU becomes less than the remaining time threshold.
H04W 28/06 - Optimisation, p. ex. compression de l'en-tête, calibrage des informations
H04L 1/18 - Systèmes de répétition automatique, p. ex. systèmes Van Duuren
H04W 48/18 - Sélection d'un réseau ou d'un service de télécommunications
10.
METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING ASSISTANCE DATA FOR POSITIONING USING ASSISTANCE DATA STATUS IN SYSTEM INFORMATION AND ASSISTANCE DATA VALIDITY IN POSITIONING PROTOCOL MESSAGE IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes receiving first PRS data via system information, receiving third PRS data via dedicate message, determining the validity of the PRS data, transmitting SRS in RRC_INACTIVE state and reporting the measurement results based on the PRS data in RRC_INACTIVE state.
Aspects of the present disclosure are to address the problems of performing time-based reconfiguration in mobile network. The method of the terminal includes receiving a first system information, receiving a second system information, determining a total amount of timing advance (TTA) based on the first NTN configuration or based on second NTN configuration and performing uplink transmission based on the TTA. The TTA is determined based on, before the stop time, the first NTN configuration and the constant offset. The TTA is determined based on, after the stop time, the second NTN configuration and the constant offset.
A method and apparatus to support enhanced retransmission is provided. Method for supporting enhanced retransmission includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a first set of Radio Link Control (RLC) configuration parameters for a first radio bearer, a first set of PDCP configuration parameters for the first radio bearer and a set of Medium Access Control (MAC) configuration parameter, transmitting to the base station a first packet related to the first radio bearer in case that remaining time of at least one PDCP Service Data Unit (SDU) is less than the first threshold, wherein the first packet related to the first radio bearer is a Acknowledged Mode Data (AMD) Protocol Data Unit (PDU) that includes a poll and is associated with the first radio bearer, and transmitting to the base station a second packet related to the first radio bearer in case that remaining time of at least one PDCP SDU is less than the second threshold, wherein the second packet related to the first radio bearer is a Delay Status Report (DSR) that comprises information on delay related to the first radio bearer.
A method and apparatus to support XR services is provided. Method for supporting XR services includes receiving from a base station a RRC message that includes set of parameters for measurement gap, performing unrestricted operation and restricted operation in a set of serving cells during a MG in a first case and performing unrestricted operation in the set of serving cells during the MG in a second case. The first case is when a specific DCI is received and the second case is when the specific DCI is not received. The specific DCI is DCI scheduling PDSCH that occurs during the MG.
H04W 72/0446 - Ressources du domaine temporel, p. ex. créneaux ou trames
H04W 24/10 - Planification des comptes-rendus de mesures
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
14.
METHOD AND APPARATUS FOR MEASUREMENT GAP IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus to support XR services is provided. Method for supporting XR services includes receiving from a base station, a RRCReconfiguration that includes MeasConfig and CellGroupConfig, establishing based on a specific equation and a mgta a second period, determining based on the second period a first period and a third period, and determining based on downlink signal related to measurement gap deactivation whether to perform transmission and reception on specific serving cells during the first period and the third period.
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
H04W 72/1268 - Jumelage du trafic à la planification, p. ex. affectation planifiée ou multiplexage de flux de flux de données en liaison ascendante
H04W 72/232 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant de la couche physique, p. ex. signalisation DCI
15.
METHOD AND APPARATUS FOR POSITIONING BASED ON VALIDITY INFORMATION AND REPORTING THE RESULT IN RRC_INACTIVE IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes receiving from a base station a first type1 assistance data, receiving from the base station a type2 assistance data, the type2 assistance data includes a validity information and a second type1 assistance data, determining based on the validity information and a New Radio (NR) cell global identifier of serving cell whether the second typel assistance data is valid, receiving from the base station a RRCRelease, transmitting in RRC_INACTIVE state a ProvideLocationInformation. At least a part of the ProvideLocationInformation is transmitted in a first Medium Access Control (MAC) Protocol Data Unit (PDU) and the first MAC PDU includes a ResumeRequest.
A method and apparatus to support cell reselection operation in a system with enhanced network energy efficiency. The method includes receiving one or more system information blocks (SIBs) in a first cell, determining a set of candidate cells for cell reselection based on a first list or a second list and performing cell reselection to a second cell, wherein the second cell belongs to the set of candidate cells. The cell indicated in the first list in a first SIB is not considered as candidate cell in case that the first SIB does not comprise a third list associated with the first list. cell indicated in the first list in a first SIB is considered as candidate cell in case that the first SIB comprises the third list associated with the first list and the physical cell identity of the cell is indicated in the third list.
A method and apparatus to support system information acquisition procedure in a system with enhanced network energy efficiency. The method includes receiving in the first cell a synchronization signal physical broadcast channel block (SSB); and performing in the first cell a procedure for system information acquisition. An index value is determined based on a specific bit in the second set of bits and a specific field of the master information block. A first procedure is performed for system information acquisition in case that the frequency band of the first cell belongs to a first frequency region and the index value is equal to a first specific value. A second procedure is performed for system information acquisition in case that the frequency band of the first cell belongs to a first frequency region, the index value is within a first range and a scheduling information of a second system information indicates that the second system information is not broadcasting. The first procedure is to request a first system information. The second procedure is to request the second system information.
H04W 48/16 - ExplorationTraitement d'informations sur les restrictions d'accès ou les accès
H04W 24/10 - Planification des comptes-rendus de mesures
H04W 74/0833 - Procédures d’accès aléatoire, p. ex. avec accès en 4 étapes
18.
METHOD AND APPARATUS FOR SELECTING ONE RANDOM ACCESS CONFIGURATION FROM AMONG PLURALITY OF RANDOM ACCESS CONFIGURATIONS ON BASIS OF TARGET FEATURE COMBINATION IN WIRELESS MOBILE COMMUNICATION SYSTEM
A method executed by a terminal, according to an embodiment of the present disclosure, comprises: a step in which a terminal receives RRCReconfiguration from a base station, wherein the RRCReconfiguration includes a first information element or second gap configuration information, wherein the first information element includes first gap configuration information, wherein the first gap configuration information includes first information and second information, and the second gap configuration information includes third information, wherein the first information includes a first gap length, and the second information includes a value indicating a UE gap and one of an FR1 gap and an FR2 gap, and the third information includes a second gap length; and a step in which if the RRCReconfiguration includes the first gap configuration information in the first information element, the terminal sets a first gap, and if the RRCReconfiguration includes the second gap configuration information, the terminal sets a second gap.
A method and apparatus to support beam failure recovery in a system with semi-persistent synchronization signal is provided. The method includes receiving from a base station a radio resource control (RRC) message that comprises a set of configuration parameters for a secondary cell (SCell), receiving from the base station a set of bits in a downlink message, setting a beam failure indication counter of the SCell to a specific value, cancelling a beam failure recovery triggered for the SCell, stopping a layer 1 measurement reporting for the SCell and removing the SCell from a list for layer 3 measurement. The specific bit of the set of bits sets to a first value. The specific bit corresponds to the SCell.
H04W 36/00 - Dispositions pour le transfert ou la resélection
H04W 36/30 - La resélection étant déclenchée par des paramètres spécifiques par des données de mesure ou d’estimation de la qualité des liaisons
H04W 72/23 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal
20.
METHOD AND APPARATUS FOR MEASUREMENT ON A CELL WITH SEMI PERSISTENT SYNCHRONIZATION SIGNAL IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus to support semi-persistent SSB transmission is provided. The method includes receiving an RRC message comprising a serving cell configuration IE for a first serving cell, performing measurement on synchronization signal of the first serving cell based on type of the first serving cell and a specific field in the serving cell configuration IE and performing measurement result report based on the measurement results on synchronization signal of the first serving cell. The specific field indicates a measurement object that is associated with the first serving cell. The physical broadcast channel (PBCH) is periodically transmitted in first type secondary cell and not transmitted in the second type secondary cell. UE determines that the first serving cell is the second type secondary cell if a field indicating no PBCH transmission is comprised in the serving cell configuration IE.
A method and apparatus for random access in repetition mode is provided. Method for random access in repetition mode includes receiving first RACH configuration, second RACH configuration and PDCCH configuration, selecting an uplink on which to perform a random access procedure based on the first RSRP threshold in the first RACH configuration, transmitting a preamble in the next available PRACH occasion based on PRACH configuration index, monitoring PDCCH in search space indicated by random access search space during while random access window is running, receiving a random access response message including a preamble identifier related to the preamble transmission and transmitting Msg3 based on the time domain resource allocation field in the uplink grant in the random access response.
A method and apparatus for monitoring paging in a mobile communication system are provided. Method for monitoring paging includes receiving a first message including first paging cycle and second paging cycle from the AMF, receiving a second message including third paging cycle and fourth paging cycle from the base station, receiving a system information including an information related to the support of extended DRX, determining a reference DRX cycle, monitoring paging occasion based on the reference DRX cycle and receiving a short message.
A Method and Apparatus for multi-SIM operation during handover is provided. The method includes receiving an RRC reconfiguration message from a base station including configuration of terminal assistance information related to an RRC state transition; initiating a terminal assistance information process based on said configuration information in said RRC control message; and initiating one of T1 and T2 based on UEAssistanceInformation, receiving an RRCReconfiguration message including a ReconfigWithSync for a target SpCell, sending an RRCReconfigurationComplete message from said target SpCell, initiating transmission of a UEAssistanceInformation after successful completion of a random access procedure at the target SpCell, and initiating T2 after initiating transmission of the UEAssistanceInformation if said UEAssistanceInformation includes a musim-PreferredRRC-State IE.
A method and apparatus for application layer measurement reporting upon synchronous reconfiguration is provided. The method includes transmitting to the base station a terminal capability information message about the application layer measurement and conditional handover and the reception of segmented downlink RRC message, receiving from the base station a first RRC reconfiguration message containing other configuration and first information for SRB4, receiving a second RRC reconfiguration message containing a third RRC reconfiguration message from said base station, discarding the segments of the segmented RRC messages stored in the RRC when said third RRC reconfiguration message is applied due to the conditional reconfiguration execution, and discarding the segmented RRC messages stored in the PDCP when PDCP reestablishment is set in the second information for SRB4.
H04W 24/10 - Planification des comptes-rendus de mesures
25.
METHOD AND APPARATUS FOR REDUCED CAPABILITY TERMINAL TO PERFORM RANDOM ACCESS AND TO RECEIVE SYSTEM INFORMATION BLOCK 2 USING A PLURALITY OF SEARCH SPACES AND A PLURALITY OF CONTROL RESOURCE SETS IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for accessing a NR cell in a mobile communication system are provided. Method for accessing a NR cell includes receiving in a first cell, by a terminal from a base station, a System Information Block1 (SIB1), determining, by the terminal, if the first cell is barred and performing by the terminal, if the cell is not barred, random access procedure based at least in part on a second pusch-TimeDomainAllocationList and a second ra-ContentionResolutionTimer.
A Method and Apparatus for multi-SIM operation during mobility is provided. The method includes Aspects of the present disclosure are to address Multi-SIM operation during mobility. The method includes receiving an RRC reconfiguration message comprising configuration of a terminal assistance information related to an RRC state transition, initiating a terminal assistance information process based on said configuration information in said RRC control message, initiating a T2 after transmitting the UEAssistanceInformation if said UEAssistanceInformation includes a musim-PreferredRRC-State IE, receiving an RRCRelease message including a SuspendConfig and performing a first set of actions in response to receiving said RRCRelease message.
A method and apparatus to support XR services is provided. Method for supporting XR services includes receiving from a base station a radio resource control (RRC) message, wherein the RRC message comprises one or more parameters related to additional buffer size table, triggering a buffer status report (BSR), generating the BSR, and transmitting a medium access control (MAC) protocol data unit (PDU), wherein the MAC PDU comprises the BSR. The BSR comprises three or more octets. The first octet comprises a constant number of logical channel group fields. The second octet comprises the constant number of buffer table fields. One or more octets comprise one or more buffer size fields. The first logical channel group field in the first octet and a first buffer table field in the second octet are associated with a first logical channel group. The first buffer size field is associated with the first logical channel group.
One embodiment of the present disclosure comprises: a step in which a terminal receives RRCReconfiguration from a base station, wherein the RRCReconfiguration includes one ServingCellConfig and one piece of gap configuration information for SpCell, wherein the ServingCellConfig includes n bwp-Id, n BWP-DownlinkCommon, and n+1 BWP-DownlinkDedicated and the gap configuration information includes gap length information, gap offset information, and gap period information, wherein the n+1 BWP-DownlinkDedicated optionally includes Type2GapStatus, and one BWP-DownlinkDedicated from among the n+1 BWP-DownlinkDedicated is associated with bwp-Id configuration information of an initial downlink BWP; and a step in which the terminal initiates a random access procedure and enabling or disabling the gap.
A method and apparatus to support XR services is provided. Method for supporting XR services includes triggering a buffer status report (BSR) in case that uplink data for a specific logical channel becomes available, determining a format of the BSR based on amount of specific data at a first time point, determining a value to be set in a specific bit of the BSR based on amount of specific data at a second time point in case that the BSR is first format, and transmitting a medium access control (MAC) protocol data unit (PDU), wherein the MAC PDU comprises the BSR. The amount of specific data at a first time point is amount of specific data when the MAC PDU is to be built. The amount of specific data at a second time point is amount of specific data when amount of resource to be allocated to logical channel is determined. The specific bit is related to buffer size table.
A method and apparatus to support XR services is provided. Method for supporting XR services includes triggering a delay status report (DSR) for a one or more logical channels, triggering a scheduling request (SR) in case that uplink resource available for new transmission is not enough to accommodate the DSR medium access control (MAC) control element (CE) and its subheader as a result of logical channel prioritization, transmitting the SR based on SR configuration, starting a prohibit timer for the SR, and stopping the prohibit timer for the SR in case that a specific delay-critical data is transmitted. The specific delay-critical data is a delay-critical data that has not been transmitted. The delay-critical data comprises packet data convergence protocol (PDCP) Service Data Units (SDUs) that belongs to a Protocol Data Unit (PDU) set of which at least one PDCP SDU has the remaining time till expiry of a discard timer less than a remaining time threshold. The discard timer starts for a PDCP SDU when the PDCP SDU arrives at PDCP entity. The remaining time threshold is configured based on a radio resource control message.
A method and apparatus for secondary base station change in a mobile communication system are provided. Method for secondary node change includes receiving conditional reconfiguration information from the base station, performing evaluation based on the configuration generated by a second base station and transmitting a second response message with an identifier indicating which conditional reconfiguration is executed.
METHOD AND APPARATUS FOR REDUCED CAPABILITY TERMINAL TO PERFORM RANDOM ACCESS USING A PLURALITY OF PUCCH COMMON CONFIGURATION IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for accessing a NR cell in a mobile communication system are provided. Method for accessing a NR cell includes receiving in a first cell, by a terminal from a base station, a System Information Block1 and performing, by the terminal, random access procedure based on a timeAlignmnetTimer in the first uplink configuration and a second pucch-ConfigCommon in the second uplink configuration.
A Method and Apparatus for performing small data transmission is provided. The method includes receiving a RRCRelease, the RRCRelease includes a first information for SDT, the first information for SDT includes a SRB2 (Signaling Radio Bearer2) indicator and a DRB (Data Radio Bearer) list, performing cell selection, receiving a SystemInformationBlock1 in a selected cell, the SystemInformationBlock1 includes a second information for SDT (Small Data Transmission), initiating a SDT based on the first information and the second information, transmitting a Medium Access Control (MAC)) Protocol Data Unit (PDU) including Common Control Channel (CCCH) Service Data Unit (SDU) for initial Physical Uplink Shared Channel (PUSCH) transmission, starting a first timer, monitoring PDCCH for a first identifier based on a first search space or a second search space, and stopping the first timer when a downlink assignment for the first identifier is received via Physical Downlink Control Channel (PDCCH).
H04W 36/00 - Dispositions pour le transfert ou la resélection
H04W 36/30 - La resélection étant déclenchée par des paramètres spécifiques par des données de mesure ou d’estimation de la qualité des liaisons
H04W 72/21 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens ascendant de la liaison sans fil, c.-à-d. en direction du réseau
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
A method executed by a terminal, according to an embodiment of the present disclosure, comprises: a step in which a terminal receives RRCReconfiguration from a base station, wherein the RRCReconfiguration includes a first information element or second gap configuration information, wherein the first information element includes first gap configuration information, wherein the first gap configuration information includes first information and second information, and the second gap configuration information includes third information, wherein the first information includes a first gap length, and the second information includes a value indicating a UE gap and one of an FR1 gap and an FR2 gap, and the third information includes a second gap length; and a step in which if the RRCReconfiguration includes the first gap configuration information in the first information element, the terminal sets a first gap, and if the RRCReconfiguration includes the second gap configuration information, the terminal sets a second gap.
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 36/00 - Dispositions pour le transfert ou la resélection
H04W 72/21 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens ascendant de la liaison sans fil, c.-à-d. en direction du réseau
35.
METHOD AND APPARATUS FOR HEAD COMPRESSION IN SDT OPERATION FOR A TERMINAL IN WIRELESS MOBILE COMMUNICATION SYSTEM
A Method and Apparatus for head compression is provided. The method includes receiving a RRCRelease, the RRCRelease includes a first information for SDT, determining a one or more radio bearers configured for SDT based on the first information, discarding all stored Packet Data Convergence Protocol Service Data Unit and PDCP Protocol Data Unit in PDCP entity of SRB1, discarding all stored Packet Data Convergence Protocol Service Data Unit and PDCP Protocol Data Unit in PDCP entity of SRB2 if the SRB2 indicator is included in the RRCRelease, storing Ethernet Header Compression information in INACTIVE Stratum a User Equipment Access context, receiving SystemInformationBlock1, the SystemInformationBlock1 includes a second information for SDT, initiating a SDT based on the first information and the second information, reestablishing a PDCP entity for the SRB1 and resuming the SRB1, restoring PDCP configurations of the radio bearers configured for SDT, and resuming the radio bearers.
A method and apparatus for secondary base station change in a mobile communication system are provided. Method for secondary node change includes receiving conditional reconfiguration information from the base station, transmitting to the base station a first response message with a transaction identifier, performing evaluation based on the configuration generated by a second base station and transmitting a second response message with an identifier indicating which conditional reconfiguration is executed.
The present invention provides a method and system for implementing handover in NR networks, addressing the challenges associated with mobility management and ensuring efficient and reliable communication. The proposed solution leverages advanced algorithms and protocols to enhance the handover procedure, minimizing latency and reducing the likelihood of connection drops. By employing both network-controlled and UE-controlled handover mechanisms, the invention ensures robust and adaptive mobility management, catering to various network scenarios and user requirements. The proposed solution enables the terminal and the base station to perform appropriate type of synchronous reconfiguration in a given situation.
A method for random access is provided. The method provides means to trigger either contention based random access or contention free random access in a specific cell based on medium access control message. The medium access control message is designed to achieve high speed processing. With this method, layer-1/layer-2 triggered mobility is performed with less interruption.
A method and apparatus for data transfer in RRC_INACTIVE state is provided. Method for data transfer in RRC_INACTIVE state includes receiving a RRCRelease, determining a radio bearer configured for second resume procedure based on the first information for second resume procedure, receiving from the base station a system information, initiating second resume procedure, restoring configuration of the radio bearer configured for second resume procedure stored in UE Inactive AS context, re-establishing PDCP entity of the radio bearer configured for second resume procedure, resuming the radio bearer configured for second resume procedure and transmitting to the base station a RRCResumeRequest.
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
H04W 74/0833 - Procédures d’accès aléatoire, p. ex. avec accès en 4 étapes
A method for enhancing mobility performance in network where cells with varying radio capabilities and sensitivities are deployed. The method enables providing Cell Individual Offset (CIO) values for neighbor cells in efficient and flexible way so that mobility performance is enhanced with minimum overhead both in signaling and processing.
A method for enhancing conditional handover in network where cells with varying radio capabilities and sensitivities are deployed. The method enables providing Cell Individual Offset (CIO) values for neighbor cells in efficient and flexible way so that conditional handover is enhanced with minimum overhead both in signaling and processing.
A technique for random access in conjunction with LTM operations is provided. The technique comprises performing an early random access procedure in a specific LTM candidate cell based on PDCCH order. Based on the early random access procedure, shorter cell switch delay is achieved. The specific LTM candidate cell is identified based on an implicit identifier determined from an explicit identifier indicated by the base station.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04W 36/04 - Resélection d'une couche de cellules dans des cellules multicouches
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
A technique for managing TCI states in conjunction with LTM operations is provided. The technique comprises first updating of activated TCI states for a cell based on a first type TCI state activation/deactivation MAC CE, final updating of TCI states for the cell based on a LTM cell switch command MAC CE and subsequent updating of TCI states for the cell based on a second type TCI state activation/deactivation MAC CE.
The method includes receiving, by the terminal from a base station the RRCReconfiguration includes a one or more gap configuration and a MAC-CellGroupConfig and a one or more uplink bandwidth part configuration, each of the one or more gap configuration includes an identifier of the gap, triggering a Scheduling Request for a first MAC CE if the first MAC CE has been triggered and not cancelled and if uplink shared channel resources are not available for a new transmission, performing, by the terminal, Scheduling Request transmission based on a specific first configuration and a specific second configuration and transmitting, by the terminal to the base station to request activation of a first gap, the first MAC CE, wherein the specific first configuration is the first configuration corresponding to the first identifier1 and the specific second configuration is the second configuration associated with the specific first configuration.
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 72/21 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens ascendant de la liaison sans fil, c.-à-d. en direction du réseau
45.
METHOD AND APPARATUS FOR TERMINAL TO DETERMINE REFERENCE PAGING CYCLE IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for monitoring paging in a mobile communication system are provided. Method for monitoring paging includes receiving a first message including first paging cycle and second paging cycle from the AMF, receiving a second message including third paging cycle and fourth paging cycle from the base station, receiving a system information including an information related to the support of extended DRX, determining a reference DRX cycle and monitoring paging occasion based on the reference DRX cycle.
A method and an apparatus for LTM operations is provided. The method enables signaling overhead reduction and efficient operation by maximizing the common signaling while maintaining signaling flexibility. The method also enables adding and releasing configurations based on reference signaling and delta signaling. The method also provides technique for PDCP buffer management for synchronous reconfiguration based on LTM.
A solution for monitoring low power signal in RRC_INACTIVE state is provided. The solution provides means to switch between low power operation mode and normal operation mode. With this solution, the terminal stays in low power state as much as possible while keeping connectivity with the network that results in reduced battery power consumption.
A solution for monitoring low power signal in RRC_INACTIVE state is provided. The solution provides means to monitor low power signal to determine whether to switch to main receiver from low power receiver. With this solution, the terminal stays in low power state as much as possible that results in reduced battery power consumption.
H04W 76/27 - Transitions entre états de commande de ressources radio [RRC]
49.
METHOD AND APPARATUS FOR REQUESTING AND RECEIVING ASSISTANCE DATA FOR POSITIONING BASED ON ASSISTANCE DATA IDENTIFIER IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes receiving SIB1, acquiring SI, transmitting a UECapabilityInformation, transmitting a provideCapabilities and transmitting a RequestAssistanceData, The ProvideAssistanceData includes a first PRS data and a data related to the second PRS data. The UECapabilityInformation includes a second capability information related to PRS measurement. The provideCapabilities includes a first capability information related to PRS measurement.
A method for positioning in a mobile communication system are provided. Method for positioning includes receiving from a base station a SIB1 comprising a first scheduling information and a second scheduling information, acquiring a SI, transmitting to the base station a UECapabilityInformation the UECapabilityInformation includes a capability information related to PRS, transmitting to a LMF a provideCapabilities including a capability information related to SRS, transmitting to the LMF a RequestAssistanceData comprising a physical cell identity of Primary Cell (PCell) and a second identifier related to a second PRS data of the one or more second PRS data, receiving from the LMF a ProvideAssistanceData including a first PRS data the first PRS data includes a first identifier and one or more nr-DL-PRS-ResourceSet, receiving a RRCRelease including an information related to SRS transmission in RRC_INACTIVE, transmitting a positioning SRS in RRC_INACTIVE state and transmitting to the LMF a ProvideLocationInformation.
A method includes receiving from a base station a first RRCReconfiguration, transmitting to the base station a UEAssistanceInformation, starting the first timer after initiating transmission of UEAssistanceInformation, receiving from the base station a second RRCReconfiguration and starting the second timer before initiating random access procedure. The first RRCReconfiguration includes a configuration information related to terminal state transition, the configuration information related to terminal state transition includes an information for a first timer, the first timer is a timer related to terminal state transition. The UEAssistanceInformation includes an information related to terminal's state. The second RRCReconfiguration includes a ReconfigurationWithSync, the ReconfigurationWithSync includes an information for a second timer related to handover. The first timers stops if the second timer expires while the first timer is running. The second timers stops if the first timer expires while the second timer is running.
A method and apparatus for data transfer in RRC_INACTIVE state is provided. Method for data transfer in RRC_INACTIVE state includes initiating the second resume procedure, starting a first timer, receiving a RRCResume and stopping the first timer. Buffer status reporting is performed based on a first BSR configuration and a first LCG if the first timer is running and performed based on a second BSR configuration and the first LCG if the first timer is not running.
A method and apparatus to improve uplink scheduling efficiency is provided. This disclosure provides methods and apparatus to selecting format for a triggered BSR with consideration on RRC configuration and amount of data to be reported and number of logical channel groups to be reported. With the method, more accurate reporting is enabled when certain conditions are fulfilled.
A method and apparatus for data transfer in RRC_INACTIVE state is provided. Method for data transfer in RRC_INACTIVE state includes receiving configuration information for second resume procedure, initiating second resume procedure and transmitting an uplink RRC message together with data in a MAC PDU. During the procedure, specific radio bearers are resumed and MAC CE are transmitted for data transmission.
H04W 52/36 - Commande de puissance d'émission [TPC Transmission power control] utilisant les limitations de la quantité totale de puissance d'émission disponible avec une plage ou un ensemble discrets de valeurs, p. ex. incrément, variation graduelle ou décalages
A method and apparatus to improve uplink scheduling efficiency is provided. This disclosure provides methods and apparatus to selecting buffer size table for a triggered BSR with consideration on RRC configuration and amount of data to be reported and number of logical channel groups to be reported. With the method, more accurate reporting is enabled when certain conditions are fulfilled.
H04W 28/02 - Gestion du trafic, p. ex. régulation de flux ou d'encombrement
H04W 72/21 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens ascendant de la liaison sans fil, c.-à-d. en direction du réseau
56.
METHOD AND APPARATUS FOR PERFORMING MEASUREMENT IN NON-TERRESTRIAL NETWORK
A Method and Apparatus for measurement in non-terrestrial network is provided. The method includes receiving a measurement configuration IE and a conditional reconfiguration IE, performing conditional reconfiguration evaluation based on the measurement configuration IE and a conditional reconfiguration IE, considering the first cell as a triggered cell and applying the stored condRRCReconfig 1E of the first cell. In the evaluation, at least two comparisons are performed based on a distance hysteresis and distance between the terminal and one or more reference positions.
Aspects of the present disclosure are to address the problems of performing time-based reconfiguration in mobile network. The method of the terminal includes receiving a first system information, receiving a second system information, receiving a RRC reconfiguration message, triggering a TAR before the first time point based on the first NTN configuration in the second scheduling information, and triggering the TAR after the first time point based on the second NTN configuration in the second scheduling information. The TAR comprises a timing advance field indicating a timing advance value applied by the terminal. The second system information comprises the first NTN configuration and the second NTN configuration.
An embodiment of the disclosure may comprise the steps in which: a terminal transmits UECapabilityInformation to a base station; the terminal receives RRCReconfiguration from the base station; the terminal configures a gap for each of one or more first information sets; the terminal associates the gap configured for each of one or more pieces of first information with a gap identifier; and the terminal measures an associated frequency in the gap configured for each of the one or more pieces of first information.
H04W 72/51 - Critères d’affectation ou de planification des ressources sans fil sur la base des propriétés du terminal ou du dispositif
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
H04W 76/27 - Transitions entre états de commande de ressources radio [RRC]
59.
METHOD AND APPARATUS FOR PERFORMING UPLINK TRANSMISSION BASED ON VALIDITY OF NTN CONFIGURATION INFORMATION IN MOBILE WIRELESS COMMUNICATION SYSTEM
Aspects of the present disclosure are to address the problems of performing time-based reconfiguration in mobile network. The method of the terminal includes receiving a first system information, receiving a second system information, receiving a RRC reconfiguration message, triggering a TAR before the first time point based on the first NTN configuration in the second scheduling information, and triggering the TAR after the first time point based on the second NTN configuration in the second scheduling information. The TAR comprises a timing advance field indicating a timing advance value applied by the terminal. The second system information comprises the first NTN configuration and the second NTN configuration.
According to an embodiment of the present disclosure, a method for user equipment in a wireless communication system may comprise the steps of: user equipment receiving RRCReconfiguration from a base station; if MeasGapConfig includes first gap configuration information, the user equipment setting up a first gap, and if the MeasGapConfig includes second gap configuration information, the user equipment setting up a second gap; and the user equipment activating the first gap or the second gap.
H04W 24/10 - Planification des comptes-rendus de mesures
H04W 72/23 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal
61.
Method and apparatus for determining uplink transmission timing based on NTN configuration in mobile wireless communication system
Aspects of the present disclosure are to address the problems of performing time-based reconfiguration in mobile network. The method of the terminal includes receiving a first system information, receiving a second system information, determining a total amount of timing advance (TTA) based on the first NTN configuration or based on second NTN configuration and performing uplink transmission based on the TTA. The TTA is determined based on, before the stop time, the first NTN configuration and the constant offset. The TTA is determined based on, after the stop time, the second NTN configuration and the constant offset.
A method and apparatus for layer 2 mobility is provided. Method for lower layer mobility includes transmitting the UECapabilityInformation to the base station, receiving a RRCReconfigruation from the base station, receiving a PDCCH order from the base station and transmitting a preamble to the base station based on the PDCCH order. The RRCReconfiguration includes a UE specific search space configuration information for type1 PDCCH order monitoring and a first RNTI for type1 PDCCH order monitoring and common search space identifier for type2 PDCCH order monitoring and a second RNTI for type2 PDCCH order monitoring. The RRCReconfiguration includes one or more inner RRCReconfiguration and associated mobility group identifier.
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
H04L 27/26 - Systèmes utilisant des codes à fréquences multiples
According to one embodiment of the present disclosure, a terminal method comprises: a step in which a terminal receives RRCReconfiguration from a base station, wherein the RRCReconfiguration includes one ServingCellConfig and one piece of gap setting information, the ServingCellConfig includes one first BWP identifier, one first timer, and one or more BWP-Downlinks, each of the one or more BWP-Downlinks includes one bwp-Id and one BWP-DownlinkDedicated, the BWP-DownlinkDedicated optionally includes Type2GapStatus, and the gap setting information includes gap length information, gap offset information, and gap period information; and a step in which, when the first timer related to a second downlink BWP expires, the terminal activates or deactivates a gap at a second time point.
H04W 24/10 - Planification des comptes-rendus de mesures
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
64.
METHOD AND DEVICE FOR CONFIGURING SMALL GAP ACCORDING TO GAP CONFIGURATION INFORMATION AND PERFORMING SMALL GAP OPERATION IN WIRELESS MOBILE COMMUNICATION SYSTEM
According to an embodiment of the present disclosure, a method of a UE in a wireless communication system may comprise: a step in which the UE transmits an uplink message for requesting a first gap or a second gap to a base station; and a step in which the UE receives a downlink message comprising gap configuration information from the base station. A first uplink message may be transmitted to request a first gap. A second uplink message may be transmitted to request a second gap. The first uplink message may include at least one piece of first information. Each of the at least one piece of first information may be related to a predetermined serving cell. Each of the at least one piece of first information may include information indicating whether a first gap is necessary when measuring a synchronization signal/PBCH block (SSB) regarding the predetermined serving cell related thereto. The second uplink message may include one piece of second information. The second information may comprise a value determined on the basis of the length of the second gap and the period of the second gap. During a first time interval of the first gap, the UE may transmit no sounding reference signal (SRS). During a second time interval of the first gap, the UE may transmit an SRS. During a third time interval of the second gap, the UE may transmit no SRS. The first gap may include a first first time interval, a second time interval, and a second first time interval. The third time interval may be a static uplink slot of the second gap.
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
H04L 1/1812 - Protocoles hybridesDemande de retransmission automatique hybride [HARQ]
H04L 1/1829 - Dispositions spécialement adaptées au point de réception
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 72/044 - Affectation de ressources sans fil sur la base du type de ressources affectées
65.
METHOD AND APPARATUS FOR RANDOM ACCESS IN WIRELESS MOBILE COMMUNICATION SYSTEM
A Method and Apparatus to address problem of RACH resource partitioning. The method includes receiving SIB1 from the base station, determining an uplink for a random access procedure based on rsrpThresholdSSB-SUL, determining a first target feature combination, determining that the CE is applicable based on rsrp-ThresholdSSB-CE, determining a second target feature combination by adding CE in the first target feature combination, selecting a second RACH-ConfigCommon based on the comparison between the target feature combination and the one or more feature combinations associated with the one or more second RACH-ConfigCommons of the selected uplink and performing a random access procedure based on the selected second RACH-ConfigCommon.
A method and apparatus to address the problems of supporting uplink positioning in mobile network is provided. The method of the terminal includes receiving a first RRC message including configuration information for TYPE2-I-SRS and a cell list for a first area and a cell list for a second area, performing TYPE2-I-SRS transmission based on the configuration information for TYPE2-I-SRS in a first cell if the first cell belongs to the second area, initiating RRC connection resume procedure in a second cell if the second cell does not belong to the second area, setting resumeCause to a second value if the second cell does not belong to the first area and to a first value if the second cell belong to the first area, transmitting RRCResumeRequest in the second cell, receiving a second RRC message in the second cell, and performing TYPE2-I-SRS transmission in a third cell based on the second RRC message.
A method and apparatus to address the problems of supporting uplink positioning in mobile network is provided. The method of the terminal includes receiving a RRC message including SuspendConfig in a specific cell, performing cell reselection from a first cell to a second cell, updating the N_TA based on the time difference between downlink frame boundary of the first cell and downlink frame boundary of the second cell, updating the stored RSRP of downlink pathloss reference based on RSRP of reference signal of the second cell and performing TYPE2-I-SRS transmission based on the N_TA and pathloss determined from the downlink pathloss reference of the second cell.
A method and apparatus to support cell level mobility is provided. Method for supporting cell level mobility includes receiving a Radio Resource Control (RRC) reconfiguration message, performing a set of operations and performing data transfer in the second cell after performing a specific operation of the set of operations. In case that the RRC reconfiguration message comprises a specific set of parameters, the set of operations comprises starting a timer related to cell level mobility, resetting Medium Access Control (MAC) entity, adjusting uplink transmission timing based on a parameter related to target timing advance, receiving a layer 1 grant based on a first identifier, performing uplink transmission of a specific MAC Protocol Data Unit (PDU) based on the layer 1 grant, receiving downlink assignment and stopping the timer related to cell level mobility.
A method and apparatus to address the problems of supporting uplink positioning in mobile network is provided. The method of the terminal includes receiving a RRC message including SuspendConfig, performing state transition to RRC_INACTIVE and cell selection, determining whether to perform TYPE1-I-SRS transmission or TYPE2-I-CRS transmission based on presence and absence of srs-PosRRC-Inactive and/or srs_positioning_inactive_multi_cell in the SuspendConfig in the RRC message and performing SRS transmission based on determination.
A Method and Apparatus for discontinuous reception and discontinuous transmission are provided. The method includes receiving a radio resource control (RRC) reconfiguration message and performing transmission of CSI report on a specific serving cell. In case that the first timer of the specific serving cell is not running, the terminal performs transmission of a first type CSI report on the serving cell, does not perform transmission of a second type CSI report on the serving cell, and does not perform transmission of a third type CSI report on the serving cell. The RRC reconfiguration message comprises channel status information (CSI) report configuration, one or more first DRX configurations and a second DRX configuration.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04W 76/38 - Libération de la connexion déclenchée par une temporisation
71.
METHOD AND APPARATUS FOR DISCONTINUOUS RECEPTION IN WIRELESS MOBILE COMMUNICATION SYSTEM
A Method and Apparatus for discontinuous reception and discontinuous transmission are provided. The method includes receiving a radio resource control (RRC) reconfiguration message, receiving a downlink control information, wherein the downlink control information comprises two or more blocks, determining a first block for the first serving cell based on the first parameter for the first serving cell, and deactivating cell discontinuous trans mission (DTX) of the first serving cell in case that a first part of the first block is set to a specific value. Size of the first parameter for the first serving cell is configurable based on a second parameter.
A method and apparatus to support cell level mobility is provided. Method for supporting cell level mobility includes receiving a Radio Resource Control (RRC) message for cell level mobility, determining whether to perform a first type cell level mobility or a second type cell level mobility and performing the first type cell level mobility in case that the RRC message comprises the second parameter for timing advance. The uplink transmission timing in the second cell is determined based on a first timing advance number and a second timing advance number. The first timing advance number is determined based on the first parameter for timing advance. The second timing advance number is determined based on the second parameter for timing advance.
A Method and Apparatus for application layer measurement reporting in RRC_INACTIVE is provided. The method includes receiving an RRC reconfiguration message from the first base station containing the first other configuration1 and the other configuration2, receiving from the first base station an RRC release message containing a suspend configuration and a first terminal identifier and a second terminal identifier, storing the application layer measurement configurations included in said first other configuration1, monitoring paging based on said suspend configuration, receiving a paging message containing said first terminal identifier, releasing said other configuration2, transmitting an RRC resume request message containing said second terminal identifier to the second base station, receiving an RRC resume message containing the second other configuration1 from the second base station, and releasing the application layer measurement configuration indicated in said second other configuration1.
A method and apparatus to support cell level mobility is provided. Method for supporting cell level mobility includes receiving a first Radio Resource Control (RRC) reconfiguration message, determining that execution condition of the conditional reconfiguration to the first cell is fulfilled, executing the conditional reconfiguration to the first cell based on the second RRC reconfiguration message, determining an uplink between a first uplink and a second uplink and transmitting based on the determination a RRC reconfiguration complete message in the first uplink or in the second uplink. The uplink is determined based on a physical layer control information of the first cell in case that the second RRC reconfiguration message comprises a first set of parameters. The uplink is determined based on reception power of downlink pathloss reference of the first cell in case that the second RRC reconfiguration message does not comprise the first set of parameters.
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes receiving second PRS data via system information, reporting capability related to PRS measurement in RRC_CONNECTED and capability related to PRS measurement in RRC_INACTIVE, transmitting requesting activation of the second PRS data, receiving third PRS data via dedicate message, determining validity of the PRS data, transmitting time pattern for PRS in via dedicate message, receiving first PRS data via dedicate message and reporting the measurement results.
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
H04W 72/1268 - Jumelage du trafic à la planification, p. ex. affectation planifiée ou multiplexage de flux de flux de données en liaison ascendante
H04W 72/23 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal
H04W 76/27 - Transitions entre états de commande de ressources radio [RRC]
76.
METHOD AND APPARATUS FOR REPORTING POWER HEADROOM REPORT BY RRC_INACTIVE STATE UE IN MOBILE WIRELESS COMMUNICATION SYSTEM
A method and apparatus for data transfer in RRC_INACTIVE state is provided. Method for data transfer in RRC_INACTIVE state includes receiving configuration information for second resume procedure in RRCRelease, receiving configuration information for second resume procedure in System Information, and triggering a PHR. The triggered PHR is canceled if specific conditions are fulfilled.
H04W 52/36 - Commande de puissance d'émission [TPC Transmission power control] utilisant les limitations de la quantité totale de puissance d'émission disponible avec une plage ou un ensemble discrets de valeurs, p. ex. incrément, variation graduelle ou décalages
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes transmitting a UECapabilityInformation, transmitting a provideCapabilities, receiving a RRCRelease, transmitting positioning SRS in a specific uplink in RRC_INACTIVE and stopping transmission of positioning SRS in RRC_INACTIVE if a specific message including a one bit information indicating to stop SRS transmission.
A method and apparatus to support cell level mobility is provided. Method for supporting cell level mobility includes receiving a Radio Resource Control (RRC) message for cell level mobility from a first cell to a second cell, starting a time alignment timer for uplink transmission of the second cell and performing uplink transmission of the second cell in case that the time alignment timer is running. The terminal starts the time alignment timer when uplink timing advance based on layer 2 (L2) Time Alignment (TA) information is applied in case that the RRC message does not comprises a first set of parameters. The terminal starts the time alignment timer when uplink timing advance based on layer 3 (L3) TA information is applied in case that the RRC message comprises the first set of parameters.
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes receiving a SIB1, acquiring the SI, transmitting a provideCapabilities, transmitting a RequestAssistanceData, receiving a ProvideAssistanceData, determining a validity of the PRS, receiving a RRCRelease, transmitting a positioning SRS in RRC_INACTIVE state and transmitting and a ProvideLocationInformation in RRC_INACTIVE state. The provideCapabilities includes a first capability information related to PRS in RRC_INACTIVE and a second capability information related to SRS in RRC_INACTIVE.
A method and apparatus for operation in NTN is provided. Method for operation in NTN includes receiving an RRC control message including a common offset1 and a common offset2 and a common offset3 and a reference position and a DRX configuration is received in the first NR cell, performing random access based on the first round-trip delay in the second NR cell and performing DRX based on the second round trip delay in the second NR cell.
A method and apparatus for operation in NTN is provided. Method for operation in NTN includes receiving SIB1 including the first common offset2 and the first common offset3 and the first reference position in the first NR cell, receiving a first RRC message including a first bitmap and a first DRX configuration in the first NR cell, monitoring PDCCH of the first cell based on the first IE group 1 received in SIB1 and the first IE group 2 received in the first RRC message and the first value determined by the terminal and the first DRX configuration, receiving a second RRC message including a second common offset2 and a second common offset3 and a second reference position and a second DRX configuration and and a second bitmap in the first NR cell and monitoring the PDCCH of the second cell based on the second IE group 1 and the second IE group 2 received in the second RRC message and the second value determined by the UE and the second DRX configuration.
A Method and Apparatus for application layer measurement reporting based on segmentation is provided. The method includes receiving a first SRB-ToAddMod IE,establishing a SRB1 based on the first SRB-ToAddMod IE, receiving a second SRB-ToAddMod IE, establishing a SRB4 based on the second SRB-ToAddMod IE, receiving a first RRC message, generating a second RRC message based on the first RRC message, generating a one or more ULDedicatedMessageSegment by segmenting the second RRC message in case that the second RRC message is larger than a specific size and the first RRC message includes a rrc-SegAllowed, transmitting, the one or more ULDedicatedMessageSegment. The one or more ULDedicatedMessageSegment are transmitted via SRB4 in case that the first RRC message is a RRCReconfiguration received via SRB1 and the first RRC message includes a first configuration information.
A method and apparatus to support conditional reconfiguration is provided. Method for supporting conditional reconfiguration includes receiving from a base station a RRC reconfiguration message, receive from the base station physical layer control information related to conditional reconfiguration and applying a RRC reconfiguration message associated with a specific applicable cell based on whether the specific applicable cell is configured with a first parameter, whether the physical layer control information related to conditional reconfiguration is received, reference signal received power of the specific applicable cell and a specific bit of the physical layer control information.
A Method and Apparatus for measurement and conditional reconfiguration in non-terrestrial network is provided. The method includes receiving a measurement configuration IE and a conditional reconfiguration IE, performing conditional reconfiguration evaluation based on the measurement configuration IE and a conditional reconfiguration IE, considering the first cell as a triggered cell and applying the stored condRRCReconfig IE of the first cell. In the evaluation, at least two comparisons are performed based on a distance hysteresis and distance between the terminal and one or more reference positions.
A method and apparatus to support conditional reconfiguration is provided. Method for supporting conditional reconfiguration includes control information of a first format during a first period based on the first identifier and performing evaluation for conditional reconfiguration. The RRC reconfiguration message comprises a set of cell group configuration parameters. The set of cell group configuration parameters comprises parameter for a first identifier, parameter for a second identifier and one or more sets of monitoring period parameters.
A method and apparatus for operation in NTN is provided. Method for operation in NTN includes receiving a first RRC control message including a common offset1 and a common offset2 and a common offset3 and a reference position in the first NR cell, transmitting the PUSCH of the second NR cell in the PUSCH transmission slot determined based on the common offset1, receiving a second RRC control message including an information element indicating a transition to the inactive state in the second NR cell, delaying application of the received information element for a first period from the moment of receiving the second RRC control message and applying the information element.
A method and apparatus to enhance uplink coverage is provided. Method for enhancing uplink coverage includes receiving a SIB1, initiating a random access procedure and performing PRACH repetition for the random access procedure in case that a sets of parameters related to preamble partitions selected for the random access procedure is associated with PRACH repetition. The SIB1 comprises a set of parameters related to serving cell configuration, wherein the set of parameters related to serving cell configuration comprises one or more sets of parameters related to RACH, a set of parameters related to PUSCH and one or more parameters indicating one or more thresholds. Each of the one or more sets of parameters related to RACH comprises a set of parameters related to generic RACH information and one or more sets of parameters related to preamble partitions.
A method and apparatus to enhance uplink coverage is provided. Method for enhancing uplink coverage includes receiving a SIB1, initiating a random access procedure for SI request and performing the random access procedure with PRACH repetition in a second uplink in case that random access resource of the second uplink is indicated for PRACH repetition in the set of parameters related to system information request and RSRP of downlink pathloss reference is less than a first threshold and RSRP of downlink pathloss reference is less than at least one of one or more second thresholds. The SIB1 comprises a set of parameters related to system information request and a set of parameters related to serving cell configuration.
A method and apparatus to enhance uplink coverage is provided. Method for enhancing uplink coverage includes receiving a SIB1, initiating a random access procedure for SI request and performing the random access procedure for SI request. The SIB1 comprises a set of parameters related to system information and a set of parameters related to serving cell configuration. The terminal performs the random access procedure for SI request with message-1 repetition and without message-3 repetition in case that the set of parameters related to system information comprises one or more sets of parameters related to SI request with message-1 repetition and RSRP of downlink pathloss reference is less than a threshold.
A method and apparatus to enhance uplink coverage is provided. Method for enhancing uplink coverage includes receiving a SIB1 and performing a random access procedure with preamble repetition in case that Reference Signal Received Power (RSRP) of downlink pathloss reference is less than at least one of one or more thresholds related to preamble repetition. The SIB1 comprises a set of parameters related to system information scheduling and a set of parameters related to uplink configuration. Random access resource indicated in the set of parameters related to system information scheduling is used in case that the random access procedure is triggered for System Information (SI) request. Random access resource indicated in the set of parameters related to uplink configuration is used in case that the random access procedure is triggered for data transmission.
A method and apparatus for supporting XR services is provided. The method of a terminal includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a set of Packet Data Convergence Protocol (PDCP) parameters for a Data Radio Bearer (DRB), establishing the DRB based on the set of PDCP parameters, starting a discard timer for a Service Data Unit (SDU) of the DRB, discarding one or more SDUs of the DRB upon expiry of the discard timer and transmitting to the base station a PDCP discard report in case that the set of PDCP parameters for the DRB comprises a parameter related to the PDCP discard report. The PDCP discard report comprises a first field related to COUNT of a first discarded SDU.
A method and apparatus for supporting XR services is provided. The method of a terminal includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a set of parameters for Packet Data Convergence Protocol (PDCP), establishing a PDCP entity based on the set of parameters for PDCP, receiving from the base station a PDCP discard report, delivering, from a PDCP entity to an upper layer, a first set of PDCP SDUs based on the PDCP discard report, updating a first state variable and starting, based on the PDCP discard report, a reordering timer in case that the first state variable is smaller than a second state variable. The first state variable indicates COUNT value of first PDCP SDU not delivered from the PDCP entity to the upper layer. The second state variable indicates COUNT value of the next PDCP SDU expected to be received. A second set of PDCP SDUs are delivered from the PDCP entity to the upper layer in case that the reordering timer expires.
A method and apparatus to support cell level mobility is provided. Method for supporting cell level mobility includes receiving a Radio Resource Control (RRC) reconfiguration message, performing a set of operations and performing data transfer in the second cell after performing a specific operation of the set of operations. In case that the RRC reconfiguration message comprises a specific set of parameters, the set of operations comprises starting a timer related to cell level mobility, resetting Medium Access Control (MAC) entity, adjusting uplink transmission timing based on a parameter related to target timing advance, receiving a layer 1 grant based on a first identifier, performing uplink transmission of a specific MAC Protocol Data Unit (PDU) based on the layer 1 grant, receiving downlink assignment and stopping the timer related to cell level mobility.
A method and apparatus to address the problems of supporting uplink positioning in mobile network is provided. The method of the terminal includes receiving a RRC message including SuspendConfig, performing state transition to RRC_INACTIVE and cell selection, determining whether to perform TYPE1-I-SRS transmission or TYPE2-I-CRS transmission based on presence and absence of srs-PosRRC-Inactive and/or srs_positioning_inactive_multi_cell in the SuspendConfig in the RRC message and performing SRS transmission based on determination.
A method and apparatus for supporting XR services is provided. The method of a terminal includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a set of Packet Data Convergence Protocol (PDCP) parameters, establishing a PDCP entity based on the set of PDCP parameters, receiving from the base station a PDCP discard report and updating a first state variable based on the PDCP discard report. The first state variable relates to start of a reordering timer. One or more PDCP Service Data Units (SDUs) are delivered from the PDCP entity to an upper layer in case that the reordering timer expires.
A Method and Apparatus for multi-SIM operation during handover is provided. The method includes receiving an RRC reconfiguration message from a base station including configuration of terminal assistance information related to an RRC state transition; initiating a terminal assistance information process based on said configuration information in said RRC control message; and initiating one of T1 and T2 based on UEAssistanceInformation, receiving an RRCReconfiguration message including a ReconfigWithSync for a target SpCell, sending an RRCReconfigurationComplete message from said target SpCell, initiating transmission of a UEAssistanceInformation after successful completion of a random access procedure at the target SpCell, and initiating T2 after initiating transmission of the UEAssistanceInformation if said UEAssistanceInformation includes a musim-PreferredRRC-State IE.
A method and apparatus for secondary base station change in a mobile communication system with multiple are provided. Method for secondary node change includes transmitting to a target SN a control message requesting conditional secondary node change, receiving from the target SN a Xn message including conditional secondary node change information, transmitting to a terminal LTE DL message for conditional secondary node change, receiving from the terminal a 1st LTE UL message including a transaction identifier, receiving from the terminal a conditional reconfiguration identifier and transmitting to a source SN a control message for data forwarding.
A method and apparatus for supporting XR services is provided. The method of a terminal includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a set of Packet Data Convergence Protocol (PDCP) parameters for a Data Radio Bearer (DRB), establishing a Data Radio Bearer (DRB) based on the set of PDCP parameters, starting a discard timer for a Service Data Unit (SDU) of the DRB and discarding one or more SDUs. In case that the discard timer expires, the terminal performs a first discard operation. In case that successful delivery of the SDU is confirmed by the PDCP status report, the terminal performs a second discard operation.
A method and apparatus for supporting XR services is provided. The method of a terminal includes receiving from a base station a Radio Resource Control (RRC) message, wherein the RRC message comprises a set of parameters for Packet Data Convergence Protocol (PDCP), establishing a PDCP entity based on the set of parameters for PDCP, receiving from the base station a PDCP discard report and performing, for a set of PDCP Service Data Units (SDUs), header decompression in case that a PDCP SDU associated with COUNT value equal to a first state variable is indicated as discarded in the PDCP discard report. The first state variable indicates COUNT value of first PDCP SDU not delivered to an upper layer. The set of PDCP SDUs comprises all stored PDCP SDUs with consecutively associated COUNT values greater than highest COUNT value of PDCP SDUs that are indicated as discarded in the PDCP discard report.
H04W 24/10 - Planification des comptes-rendus de mesures
100.
METHOD AND APPARATUS FOR SELECTING RANDOM ACCESS CONFIGURATION AND UPLINK CARRIER FOR RANDOM ACCESS PROCEDURE BASED ON PHYSICAL DOWNLINK CONTROL CHANNEL ORDER IN WIRELESS COMMUNICATION SYSTEM
A method and apparatus for selecting a random access configuration is provided. The Method includes receiving a System Information Block1, selecting a feature-combination-related-information based on a feature-combination-information and performing random access procedure based on the selected feature-combination-related-information. The SIB1 includes a one or more RACH-ConfigCommon, each of the one or more RACH-ConfigCommon includes a zero or one or more feature-combination-related-information, each of the one or more feature-combination-related-information includes a feature-combination-information, the feature-combination-information includes a redcap related field and a smallData related field and a message 3 repetition related field and a slice related field, each of the redcap related field and the smallData related field and the message 3 repetition field includes a bit indicating a single value, the slice related field includes a information corresponding to one or more Single-Network Slice Selection Assistance Information (S-NSSAI), the information corresponding to one or more Single Network Slice Selection Assistance Information (S-NSSAI) consists of multiple bits.
H04W 74/0833 - Procédures d’accès aléatoire, p. ex. avec accès en 4 étapes
H04W 72/0457 - Affectation de bande ou de débit variable
H04W 72/231 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal les données de commande provenant des couches au-dessus de la couche physique, p. ex. signalisation RRC ou MAC-CE
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