TIMING ADVANCE TECHNIQUES FOR NON-TERRESTRIAL NETWORK HANDOVERS

    公开(公告)号:US20240224212A1

    公开(公告)日:2024-07-04

    申请号:US18558577

    申请日:2021-07-31

    CPC classification number: H04W56/0045 H04B7/0626 H04W36/0072

    Abstract: Certain aspects of the present disclosure provide techniques for determining a timing advance (TA) for a handover in a network, such as a non-terrestrial network, A method that may be performed the UE includes receiving, from a source base station (BS), a handover command instructing the UE to hand over to a target BS, obtaining an indication of a timing advance (TA) for communicating with the target BS, wherein the indication of the TA for communicating with the target BS is based, at least in part, on a TA used for communicating with the source BS and a first time difference between a first reference signal associated with the source BS and a second reference signal associated with the target BS, and transmitting, based on the handover command, one or more signals to the target BS using the TA for communicating with the target BS.

    WIRELESS COMMUNICATIONS BASED ON RATELESS CODES AND LAYERED MODULATION

    公开(公告)号:US20230396355A1

    公开(公告)日:2023-12-07

    申请号:US18249922

    申请日:2020-12-14

    CPC classification number: H04L1/0003 H04L1/0061 H04L1/0009

    Abstract: Methods, systems, and devices for wireless communications are described. A rateless code may be used to generate n encoded packets based on a set of source packets. A modulation technique may be used to generate first symbol packets from the encoded packets. And a layered modulation technique may be used to generate coded symbol packets from the first symbol packets. The layered modulation technique may include generating a coded symbol packet from a group of first symbol packets. Different weights may be applied to the different first symbol packets included in the group of first symbol packets before the first symbol packets in the group are combined together. A receiving device may demodulate the transmitted coded symbol packets to reconstruct the group of first symbol packets, use the reconstructed group of first symbol packets to recover the encoded packets, and use the encoded packets to reconstruct the source packets.

    FREQUENCY HOPPING SCHEME WITH PARTIAL INTER-HOP BANDWIDTH OVERLAP

    公开(公告)号:US20230223984A1

    公开(公告)日:2023-07-13

    申请号:US18004418

    申请日:2020-08-19

    CPC classification number: H04B1/713 H04L5/0012 H04L5/005

    Abstract: In an aspect, a wireless node (e.g., UE or BS) measures, at a first hop of a frequency hopping scheme, a reference signal (RS) on a first sub-band of an effective RS bandwidth, and measures, at a second hop of the frequency hopping scheme, the RS on a second sub-band of the effective RS bandwidth, the first and second sub-bands of the effective RS bandwidth overlapping in part. In another aspect, a UE transmits, at a first hop of a frequency hopping scheme, a reference signal (RS) on a first sub-band of an effective RS bandwidth, and transmits, at a second hop of the frequency hopping scheme, the RS on a second sub-band of the effective RS bandwidth, the first and second sub-bands of the effective RS bandwidth overlapping in part.

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