Method and apparatus for performing measurement in non-terrestrial network

    公开(公告)号:US12171039B2

    公开(公告)日:2024-12-17

    申请号:US18597972

    申请日:2024-03-07

    Inventor: Soenghun Kim

    Abstract: 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 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.

    METHOD AND APPARATUS FOR PERFORMING CELL LEVEL MOBILITY IN MOBILE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240414603A1

    公开(公告)日:2024-12-12

    申请号:US18672085

    申请日:2024-05-23

    Inventor: Soenghun KIM

    Abstract: 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.

    Method and apparatus for random access resource selection in mobile wireless communication system

    公开(公告)号:US12167471B2

    公开(公告)日:2024-12-10

    申请号:US18657803

    申请日:2024-05-08

    Inventor: Soenghun Kim

    Abstract: A wireless device may receive system information block 1 (SIB1) message of a cell. The SIB1 message may indicate a plurality of configuration parameters comprising a common uplink configuration of an uplink bandwidth part (BWP). The common uplink configuration of the uplink BWP may comprise: a common random access channel (RACH) configuration, a threshold for determining whether to select a resource associated with a physical random access channel (PRACH) preamble repetition number, and a second RACH configuration associated with feature combination. The second RACH configuration may indicate the PRACH preamble repetition number. The wireless device may determine, based on the threshold and based on the PRACH preamble repetition number, a repetition number for PRACH preamble transmission, and repeatedly transmit, based on the determined repetition number, a PRACH preamble of a random access procedure associated with the second RACH configuration.

    METHOD AND APPARATUS FOR TERMINAL TO TRANSMIT APPLICATION LAYER MEASUREMENT REPORT IN MOBILE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240397373A1

    公开(公告)日:2024-11-28

    申请号:US18796883

    申请日:2024-08-07

    Inventor: Soenghun Kim

    Abstract: 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.

    METHOD AND APPARATUS FOR RELEASING RRC CONNECTION BASED ON RRC MESSAGE IN NON-TERRESTRIAL NETWORK

    公开(公告)号:US20240389193A1

    公开(公告)日:2024-11-21

    申请号:US18784882

    申请日:2024-07-25

    Inventor: Soenghun Kim

    Abstract: 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.

    METHOD AND APPARATUS FOR RANDOM ACCESS PROCEDURE IN MOBILE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240381438A1

    公开(公告)日:2024-11-14

    申请号:US18660189

    申请日:2024-05-09

    Inventor: Soenghun Kim

    Abstract: 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.

    METHOD AND APPARATUS FOR RANDOM ACCESS PROCEDURE WITH PREAMBLE REPETITION IN MOBILE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240381436A1

    公开(公告)日:2024-11-14

    申请号:US18660177

    申请日:2024-05-09

    Inventor: Soenghun Kim

    Abstract: 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.

    METHOD AND APPARATUS FOR RANDOM ACCESS RESOURCE SELECTION IN MOBILE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240381433A1

    公开(公告)日:2024-11-14

    申请号:US18657803

    申请日:2024-05-08

    Inventor: Soenghun Kim

    Abstract: A wireless device may receive system information block 1 (SIB1) message of a cell. The SIB1 message may indicate a plurality of configuration parameters comprising a common uplink configuration of an uplink bandwidth part (BWP). The common uplink configuration of the uplink BWP may comprise: a common random access channel (RACH) configuration, a threshold for determining whether to select a resource associated with a physical random access channel (PRACH) preamble repetition number, and a second RACH configuration associated with feature combination. The second RACH configuration may indicate the PRACH preamble repetition number. The wireless device may determine, based on the threshold and based on the PRACH preamble repetition number, a repetition number for PRACH preamble transmission, and repeatedly transmit, based on the determined repetition number, a PRACH preamble of a random access procedure associated with the second RACH configuration.

    METHOD AND APPARATUS FOR RUNNING REORDERING TIMER BASED ON RECEIVED PDCP CONTROL PDU IN MOBILE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240373289A1

    公开(公告)日:2024-11-07

    申请号:US18644011

    申请日:2024-04-23

    Inventor: Soenghun Kim

    Abstract: 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.

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