LOW POWER DOWNLINK CONTROL CHANNEL MONITORING

    公开(公告)号:US20210120560A1

    公开(公告)日:2021-04-22

    申请号:US16659346

    申请日:2019-10-21

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may monitor sets of decoding candidates over a search space in each monitoring occasion to detect downlink control transmissions. Such a monitoring process may be resource intensive. To reduce the processing power involved in monitoring the control channel, a UE may measure resources associated with the downlink control channel to obtain a quality metric. The UE may compare the quality metric to one or more thresholds and may perform a decoding process on a set of configured decoding candidates for the downlink control channel based on the comparing. In some cases, if the channel quality is relatively good, the UE may perform a list decoding process using a list size less than a maximum list size or may perform partial data tone processing to reduce the processing complexity for some of the decoding candidates.

    Adaptive extended reality transmissions for ultra-wide band communications

    公开(公告)号:US12199663B2

    公开(公告)日:2025-01-14

    申请号:US18158187

    申请日:2023-01-23

    Abstract: Ultra-wide band frequencies used for extended reality (XR) services operate as unlicensed spectrum, which can result in unexpected interference. Although some link adaptation procedures can be used, uncertain link quality can result in sub-optimal utilization of spectrum resources, which may result in poor performance of an XR service. Some aspects described herein enable use of a fixed quantity of re-transmissions of data for an XR frame, with each of the re-transmissions having different XR frame qualities or different quantities of parity bits. The XR device may transmit a feedback message indicating whether the first transmission was successful and may receive a second transmission with additional data for the XR frame. In this way, the XR device can ensure a more efficient use of network resources.

    MULTI-USER CHANNEL PREDICTION FOR MOBILITY SCENARIOS

    公开(公告)号:US20240267182A1

    公开(公告)日:2024-08-08

    申请号:US18163858

    申请日:2023-02-02

    CPC classification number: H04L5/0051 H04B7/0452 H04B7/0456 H04W72/0446

    Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit via a first time slot, a first set of demodulation reference signals (DMRSs) and a second set of DMRSs that may be associated with a set of user equipments (UEs). The network entity may receive from the set of UEs, respective feedback messages indicating respective channel estimation information based on the first set of DMRSs and the second set of DMRSs. The network entity may generate a multi-user multi-input and multi-output (MU-MIMO) channel prediction for a second slot subsequent the first slot, based on the respective feedback messages and generate a MU-MIMO channel precoder associated with the set of UEs based on the MU-MIMO channel prediction. The network entity may transmit, during the second slot, one or more messages to the UEs based on the MU-MIMO channel prediction and the MU-MIMO channel precoder.

    Communication resource allocation for rateless coding

    公开(公告)号:US11990997B2

    公开(公告)日:2024-05-21

    申请号:US17529226

    申请日:2021-11-17

    CPC classification number: H04L1/0058

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for mapping coding indices associated with a rateless coding scheme to respective sets of communication resources over which a transmitting device may perform transmissions of portions of a message corresponding to each of the coding indices. In some aspects, for example, different coding indices may correspond to different cumulative portions of the message and the transmitting device may transmit a first cumulative portion of the message corresponding to a first coding index over a first set of communication resources to which the first coding index is mapped. The transmitting device may signal an indication of such a resource mapping scheme to a receiving device and the receiving device may attempt to decode transmissions of one or more cumulative portions of the message using the indicated resource mapping scheme.

    Hierarchical cyclic redundancy check techniques

    公开(公告)号:US11616597B1

    公开(公告)日:2023-03-28

    申请号:US17572840

    申请日:2022-01-11

    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications system, a wireless device may append, during a first encoding stage, a first set of cyclic redundancy check bits having a first size to each code block of a plurality of code blocks and may concatenate two or more code blocks from the plurality of code blocks into a first set of code blocks, each code block of the two or more code blocks including the appended first set of cyclic redundancy check bits. The wireless device may further append, during a second encoding stage, a second set of cyclic redundancy check bits having a second size to the first set of code blocks, and may transmit a message comprising the plurality of code blocks including the appended first set of cyclic redundancy check bits and the appended second set of cyclic redundancy check bits.

    REFERENCE SIGNAL SEQUENCE GENERATION

    公开(公告)号:US20220140965A1

    公开(公告)日:2022-05-05

    申请号:US17086074

    申请日:2020-10-30

    Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may identify a reference signal sequence (e.g., a demodulation reference signal (DMRS) sequence) based on a cyclic shift associated with a control channel for communications with a second wireless device. For example, the first wireless device may identify the cyclic shift associated with transmitting a message to the second wireless device via the control channel. In another example, the first wireless device may estimate the cyclic shift associated with receiving a message from the second wireless device via the control channel. The first wireless device may then communicate with the second wireless device based on the reference signal sequence. For example, the first wireless device may transmit or receive (e.g., via a shared channel) the reference signal sequence to or from the second wireless device.

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