TECHNIQUES FOR REMOTE USER EQUIPMENT HANDOVER DUE TO RELAY USER EQUIPMENT MOBILITY

    公开(公告)号:US20240031890A1

    公开(公告)日:2024-01-25

    申请号:US18253366

    申请日:2021-01-14

    CPC classification number: H04W36/033

    Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be configured to communicate with a first base station, where the first UE is configured to relay wireless communications between a second UE and the first base station via at least a sidelink communication link between the first UE and the second UE. The first UE may receive, from the first base station, an indication for the first UE to perform a first handover procedure from the first base station to a second base station. The first UE may transmit, to the second UE via the sidelink communication link and based on receiving the indication to perform the first handover procedure, a sidelink transmission including a trigger for the second UE to perform a second handover procedure or a reselection procedure. The first UE may then communicate with the second base station based on performing the first handover procedure from the first base station to the second base station.

    BEAM UPDATES DURING A SECONDARY CELL GROUP (SCG) DORMANCY PERIOD

    公开(公告)号:US20230327726A1

    公开(公告)日:2023-10-12

    申请号:US18001844

    申请日:2020-08-20

    CPC classification number: H04B7/0626 H04W56/0015 H04B7/06952

    Abstract: A method of wireless communication for a user equipment (UE) includes entering a dormancy period for a secondary cell group (SCG) of a base station (BS) during which no downlink (DL) data or control transmissions are received from the SCG; performing a channel state information (CSI) measurement on the SCG during the dormancy period to generate a measurement report; determining an uplink (UL) beam of a primary secondary cell (PSCELL) of the SCG; transmitting the measurement report to the BS on the UL beam of the SCG; and determining, during the dormancy period and after transmitting the measurement report, one or more downlink (DL) beams for communicating on the SCG based on one or more rules and based on the measurement report, wherein the one or more rules result in the BS determining the same one or more DL beams based on the measurement report.

    Logical channel prioritization and mapping to different numerologies

    公开(公告)号:US11696331B2

    公开(公告)日:2023-07-04

    申请号:US16464642

    申请日:2017-09-18

    CPC classification number: H04W74/0833 H04W72/1273 H04W72/23

    Abstract: Logical channel prioritization and mapping to different numerologies is disclosed for 5G networks having multiple network slices operable for communication via logical channels associated with different numerologies. For user equipments (UEs) configured to handle multiple numerologies, different rules for mapping logical channels associated with different numerologies may be defined for data and non-data channels. Thus, when new data arrives at a UE for communication via a logical channel associated with a different numerology, the UE checks whether the mapping rules would allow multiplexing of the new numerology data onto an existing data channel. If no data channel has already been allocated or if an allocated data channel may not include data from the new numerology, then a mapping is followed for specifically requesting resources for communication of the new numerology data. The new mapping may trigger scheduling request or random access procedures specifically associated with the new numerology.

    Transmitting data in a control channel

    公开(公告)号:US11470598B2

    公开(公告)日:2022-10-11

    申请号:US17044709

    申请日:2019-04-02

    Abstract: Aspects of the disclosure relate to wireless communication. In some aspects, a user equipment (UE) may receive an indicator, in a physical downlink control channel (PDCCH) payload, that indicates whether the PDCCH payload includes data or downlink control information (DCI) for obtaining the data, wherein the indicator is an initial state of a cyclic redundancy check that includes a predefined sequence of bits; and obtain at least one of the data or the DCI based at least in part on the indicator. Numerous other aspects are provided.

    NPRACH having improved reliability performance

    公开(公告)号:US11350462B2

    公开(公告)日:2022-05-31

    申请号:US16630180

    申请日:2018-08-21

    Inventor: Peng Cheng Chao Wei

    Abstract: NPRACH suffers from false alarms in which a base station detects and cannot distinguish an NPRACH signal that is intended for a different base station. An NPRACH may include a cell specific frequency shift pattern over repetitions and/or a repetition level scrambling sequence that enables a base station to more accurately detect NPRACH. An apparatus generates an NPRACH signal comprising multiple repetitions, wherein each repetition comprises multiple symbol groups. The apparatus may apply a different frequency shift between repetitions of the NPRACH signal. The frequency shift may comprise a cell specific random frequency shift pattern applied over each repetition. The apparatus may apply a repetition level scrambling sequence to the NPRACH signal, wherein a single scrambling sequence is applied to a set of repetitions comprised in the NPRACH signal. The apparatus transmits the NPRACH to a serving cell.

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