METHOD AND APPARATUS FOR MEASUREMENTS FOR UE MOBILITY BETWEEN NTN AND TN

    公开(公告)号:US20230422125A1

    公开(公告)日:2023-12-28

    申请号:US18336812

    申请日:2023-06-16

    CPC classification number: H04W36/083 H04W36/322 H04W36/0085

    Abstract: Methods and apparatuses for measurements for UE mobility between an NTN and a TN. A method of operating a UE comprises: identifying terrestrial network (TN) neighboring cell information received from a non-terrestrial network (NTN), wherein the TN neighboring cell information includes at least TN neighboring cell geographical area; identifying a location of the UE; determining, based on the location of the UE and the TN neighboring cell information, whether to measure TN neighboring cells; identifying, based on a determination that TN neighboring cells are measured, one or more TN neighboring cells among the TN neighboring cells; and measuring the one or more TN neighboring cells for a cell reselection operation.

    METHOD AND APPARATUS OF SEMI-STATIC MODE SIDELINK CHANNEL ACCESS

    公开(公告)号:US20230328778A1

    公开(公告)日:2023-10-12

    申请号:US18192608

    申请日:2023-03-29

    CPC classification number: H04W74/0808

    Abstract: Methods and apparatuses for initiating channel occupancy in a semi-static mode SL channel access in a wireless communication system. A method of a user equipment (UE) includes receiving, from a higher layer, an indication on a semi-static mode SL channel access, receiving a set of configurations for the semi-static mode SL channel access, including a duration of a period and determining a first portion of the period as a channel occupancy associated with the period. The method further includes determining a second portion of the period as an idle duration associated with the period, performing a SL channel access procedure in the idle duration associated with the period, and transmitting a first SL transmission over a channel in the channel occupancy associated with the period after successfully performing the SL channel access procedure.

    METHOD AND APPARATUS FOR TRANSMISSION WINDOW DETERMINATION FOR A PHYSICAL SIDELINK FEEDBACK CHANNEL

    公开(公告)号:US20230269056A1

    公开(公告)日:2023-08-24

    申请号:US18163204

    申请日:2023-02-01

    CPC classification number: H04L5/0055 H04L1/1812 H04W72/40 H04W16/14

    Abstract: Apparatuses and methods for transmission window determination for a physical sidelink feedback channel (PSFCH) in a wireless communication system. A method of user equipment (UE) includes receiving a set of configurations from a higher layer and receiving a physical sidelink shared channel (PSSCH). The PSSCH enables hybrid automatic repeat request (HARQ) feedback. The method further includes determining a transmission window for a PSFCH; performing a sidelink (SL) channel access procedure before a transmission occasion in the one or multiple transmission occasions; and transmitting the HARQ feedback in the transmission occasion for the PSFCH over a channel upon successfully performing the SL channel access procedure. The transmission window includes the one or multiple transmission occasions for the PSFCH and the one or multiple transmission occasions are based on at least one of: a window offset, an interval between two neighboring transmission occasions, and a number of transmission occasions.

    METHOD AND APPARATUS FOR CONDITIONAL PSCELL ADDITION AND CHANGE

    公开(公告)号:US20230247492A1

    公开(公告)日:2023-08-03

    申请号:US18156381

    申请日:2023-01-18

    CPC classification number: H04W28/26 H04W48/20 H04W36/26

    Abstract: Methods and apparatuses for enhanced conditional PCell/PSCell addition and changes in a wireless communication system. A method of a UE comprises: receiving reservation information including an indication; determining, based on the indication, whether a candidate PCell/PSCell is reserved; storing, based on a determination that the candidate PCell/PSCell is reserved, the reservation information, CG information and one or more execution conditions associated with the reserved PCell/PSCell; retrieving, after performing a first UE operation, the stored CG information and one or more execution conditions associated with the reserved PCell/PSCell; determining whether one or more execution conditions are met for a reserved PCell/PSCell; and upon determination that one or more execution conditions are met, applying the stored the CG information of the reserved PCell/PSCell to a second UE operation.

    METHOD AND APPARATUS FOR CHANNEL OCCUPANCY INDICATION ON SIDELINK

    公开(公告)号:US20230224967A1

    公开(公告)日:2023-07-13

    申请号:US18145741

    申请日:2022-12-22

    CPC classification number: H04W74/0816 H04W74/0875 H04W72/25

    Abstract: Methods and apparatuses for channel occupancy indication on a sidelink (SL) in a wireless communication system. A method of operating user equipment (UE) includes receiving a SL control information (SCI) format over a sidelink channel; determining, from the SCI format, at least one of: time domain information for a channel occupancy, frequency domain information for the channel occupancy, and a SL channel access procedure. The method further includes performing the SL channel access procedure before a sidelink transmission; and transmitting, upon successfully performing the sidelink channel access procedure, the SL transmission over the SL channel within the channel occupancy based on the time domain information or the frequency domain information for the channel occupancy.

    METHOD AND APPARATUS FOR MEASUREMENT OF TAI UPDATES IN AN NTN

    公开(公告)号:US20220225265A1

    公开(公告)日:2022-07-14

    申请号:US17568669

    申请日:2022-01-04

    Abstract: Methods and apparatuses of UE for measurement of TAI updates in an NTN. A method of a UE comprises: receiving, from a BS, an SIB including multiple TAIs and an indication of whether to include a UE location in an NAS registration/tracking area update operation; determining whether to include the UE location based on the indication; identifying information for the UE location; generating a radio resource control (RRC) message including the information for the UE location, wherein the RRC message encapsulates a NAS message; and transmitting, to the BS, the RRC message including the information for the UE location.

    Virtual tracking or registration areas for non terrestrial networks

    公开(公告)号:US11323944B2

    公开(公告)日:2022-05-03

    申请号:US17030146

    申请日:2020-09-23

    Abstract: A method and apparatus in a wireless communication system is provided. The method and apparatus comprises: identifying a virtual tracking area (VTA) to tracking area (TA) (VTA-TA) mapping information indicating mappings between (i) TA identifiers (TAIs) associated with a non-terrestrial network (NTN) entity and (ii) VTAs associated with geographical areas as a function of time; identifying one or more TAIs at an instant or during a time period based on the VTA-TA mapping information; transmitting a radio resource control (RRC) request message including the one or more TAIs; and receiving an RRC response message corresponding to the RRC request message based on the one or more TAIs. The RRC response message includes a virtual registration area (VRA).

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