ROOT SELECTION FOR RANDOM ACCESS
    81.
    发明申请

    公开(公告)号:US20220338274A1

    公开(公告)日:2022-10-20

    申请号:US17853213

    申请日:2022-06-29

    Abstract: Techniques are described for selecting root pairs for Zadoff-Chu sequences for random access preamble and for signaling one or more values associated with the root pair to a user equipment (UE) by a base station. The described root pair selection methods for two-root physical random access channel (PRACH) preamble can enable the peak differences received at the UE from different frequency offsets (FOs) to be disjointed even considering error in UE side. The selection techniques can improve the performance of PRACH FO and time offset (TO) estimation.

    METHOD AND APPARATUS FOR HYBRID AUTOMATIC REPEAT REQUEST PROCEDURE

    公开(公告)号:US20220247520A1

    公开(公告)日:2022-08-04

    申请号:US17575016

    申请日:2022-01-13

    Abstract: The present disclosure relates to methods, systems and devices for use in a user equipment includes receiving, from a base station, BS, the scheduling information for scheduled data, and determining at least one feedback process identifier of at least one feedback process associated with the scheduling information for scheduled data based on feedback process identifier information in the scheduling information and at least one indicator.

    CHANNEL STATE ESTIMATING AND REPORTING SCHEMES IN WIRELESS COMMUNICATION

    公开(公告)号:US20210351959A1

    公开(公告)日:2021-11-11

    申请号:US17384523

    申请日:2021-07-23

    Abstract: Methods, systems, and devices for channel state estimating and reporting schemes in wireless communication are described. In one aspect, a wireless communication method is provided to include transmitting, by a communication device, a channel state report message that includes at least one of a first field indicative of a value of a parameter or a second field that includes a deviation or a change rate of the parameter.

    ADAPTIVE RANDOM ACCESS RESPONSE WINDOW

    公开(公告)号:US20210345398A1

    公开(公告)日:2021-11-04

    申请号:US17377928

    申请日:2021-07-16

    Abstract: This disclosure relates generally to wireless communications and, more particularly, to systems and methods for determining an adaptive random access response window length in non-terrestrial networks. In one embodiment, a method performed by a communication device includes: receiving system information from a communication node, wherein the communication node communicates using a satellite in orbit or a high altitude platform station (HAPS); and determining an adaptive random access response window length based on the system information and whether the communication device has access to situation information that: characterizes a location of the communication device, an ephemeris of the satellite or a trajectory of the HAPS, and a payload type of the satellite or the HAPS.

    METHODS AND SYSTEMS FOR MOBILITY MANAGEMENT IN NON-TERRESTRIAL NETWORKS

    公开(公告)号:US20210314060A1

    公开(公告)日:2021-10-07

    申请号:US17212594

    申请日:2021-03-25

    Abstract: Methods and systems for mobility management in non-terrestrial networks are disclosed. In one embodiment, a method performed by a first communication node, includes: during a first time period, communicating with a non-terrestrial communication node utilizing a first communication link, wherein the non-terrestrial communication node provides at least one geographic cell in which a user equipment device (UE) is present during the first time period; during a second time period, communicating with a second communication node utilizing a second communication link, wherein a third communication link is established between the non-terrestrial communication node and the second communication node and the first communication link is no longer utilized during the second time period; and determining to maintain the first communication node as an anchor node for communications between a core network and the UE during both the first and second time periods.

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