SPACE TIME CODING FOR SIDELINK TRANSMISSIONS

    公开(公告)号:US20240195463A1

    公开(公告)日:2024-06-13

    申请号:US18065618

    申请日:2022-12-13

    CPC classification number: H04B7/0456 H04W92/18

    Abstract: The described techniques may support multi-rank sidelink communications that may be reduced to single rank communications if failure to decode the multi-rank sidelink communications occurs. A user equipment (UE) may transmit a first message including first data using a first precoding vector applied for a first layer and a second precoding vector applied for a second layer. If the first message is not decoded successfully, the UE may transmit a second message including second data using a third precoding vector applied for the first layer and a fourth precoding vector applied for the second layer, where the second data is derived from the first data, the third precoding vector is derived from the second precoding vector, and the fourth precoding vector is derived from the first precoding vector. The second message may effectively reduce a rank of the first message when the channel is rank deficient.

    Early termination of blind decoding with rateless coding

    公开(公告)号:US11956799B2

    公开(公告)日:2024-04-09

    申请号:US17529196

    申请日:2021-11-17

    CPC classification number: H04W72/23 H04W48/08

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for early termination of decoding attempts, including decoding attempts associated with physical downlink control channel (PDCCH) candidates that are encoded using a rateless code. In some aspects, a transmitting device may encode a message using a rateless code associated with a cumulative encoding of various portions of the message, and using a device identifier or group identifier as an input to the encoding. Similarly, a receiving device may receive an encoded signal over candidate resources and may attempt to decode the signal in accordance with the rateless code and using a device identifier or a group identifier as an input to the decoding. As such, intended or non-intended receiving device may be able to evaluate whether to proceed with a decoding attempt or to terminate a decoding attempt at a relatively early stage.

    Techniques for a multiple incremental redundancy retransmission scheme

    公开(公告)号:US11956073B2

    公开(公告)日:2024-04-09

    申请号:US17302294

    申请日:2021-04-29

    CPC classification number: H04L1/0004 H04L5/0055 H04W72/20

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may transmit, to a receiver device, an initial message associated with a communication using a first code rate. The transmitter device may receive, from the receiver device, first feedback information indicating that the communication was not successfully decoded by the receiver device. The transmitter device may transmit, to the receiver device based at least in part on the reception of the first feedback information, one or more retransmissions associated with the communication including a first retransmission, wherein the first retransmission includes a first number of bits to lower an effective code rate of the communication to a second code rate. The transmitter device may receive, from the receiver device, second feedback information indicating that the communication was successfully decoded by the receiver device. Numerous other aspects are described.

    TECHNIQUES FOR RESOURCE RESERVATION FOR A RETRANSMISSION

    公开(公告)号:US20230362738A1

    公开(公告)日:2023-11-09

    申请号:US17736867

    申请日:2022-05-04

    Abstract: Methods, systems, and devices for wireless communications are described. A network entity may determine a number of resources for next transmissions following a first transmission. For example, a user equipment (UE) may calculate an average mutual information (MI) of a single log likelihood ratio (LLR) and an MI for each code block. The UE may transmit feedback indicating a quantity of resources to achieve a target MI based on the calculated averages. A wireless device may monitor a feedback buffer utilization associated with the UE. A network entity may retransmit existing code blocks or output a transmission using repetition based on the monitoring and utilization thresholds. The network entity may indicate to the UE a latency level code block attribute and increase a quantity of resources for following retransmissions by a boosting factor based on the latency level and a threshold.

    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.

    Envelope tracking for wideband signals using filter bank processing

    公开(公告)号:US12256346B2

    公开(公告)日:2025-03-18

    申请号:US18532277

    申请日:2023-12-07

    Abstract: Certain aspects of the present disclosure provide techniques for envelope tracking schemes for a node in a wireless communication network. One aspect provides a method for wireless communication by a transmitter device. The method generally includes: combining envelopes associated with subbands of an input signal to be amplified for transmission based on a combination function; amplifying, via an amplifier, the input signal to generate a transmission signal, the input signal being amplified based on a combined envelope signal, representing the combination of the envelopes, received at a supply input of the amplifier; and transmitting the transmission signal to a receiver device.

    Envelope tracking for wideband signals using filter bank processing

    公开(公告)号:US12069594B2

    公开(公告)日:2024-08-20

    申请号:US17453800

    申请日:2021-11-05

    CPC classification number: H04W52/52 H04W24/08

    Abstract: Certain aspects of the present disclosure provide techniques for envelope tracking schemes for a node in a wireless communication network. One aspect provides a method for wireless communication by a transmitter device. The method generally includes: combining envelopes associated with subbands of an input signal to be amplified for transmission based on a combination function; amplifying, via an amplifier, the input signal to generate a transmission signal, the input signal being amplified based on a combined envelope signal, representing the combination of the envelopes, received at a supply input of the amplifier; and transmitting the transmission signal to a receiver device.

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