Enhancements for improved CV2X scheduling and performance

    公开(公告)号:US11595947B2

    公开(公告)日:2023-02-28

    申请号:US17305506

    申请日:2021-07-08

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, techniques for improving semi-persistent scheduling performance, including in the context of cellular vehicle-to everything (CV2X) communications, are provided. For example, a method of wireless communication performed by a user equipment can include determining a first periodicity for transmitting safety messages, determining a second periodicity for transmitting the safety messages, wherein the second periodicity is different than the first periodicity, determining, based on a probabilistic determination process, whether to continue with the first periodicity or switch to the second periodicity, generating, based on the determination to continue with the first periodicity or switch to the second periodicity, the safety messages at the first periodicity or the second periodicity, and transmitting the safety messages at a same periodicity at which the safety messages were generated. Numerous other aspects are provided.

    ENHANCEMENTS FOR IMPROVED CV2X SCHEDULING AND PERFORMANCE

    公开(公告)号:US20220015068A1

    公开(公告)日:2022-01-13

    申请号:US17305506

    申请日:2021-07-08

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, techniques for improving semi-persistent scheduling performance, including in the context of cellular vehicle-to everything (CV2X) communications, are provided. For example, a method of wireless communication performed by a user equipment can include determining a first periodicity for transmitting safety messages, determining a second periodicity for transmitting the safety messages, wherein the second periodicity is different than the first periodicity, determining, based on a probabilistic determination process, whether to continue with the first periodicity or switch to the second periodicity, generating, based on the determination to continue with the first periodicity or switch to the second periodicity, the safety messages at the first periodicity or the second periodicity, and transmitting the safety messages at a same periodicity at which the safety messages were generated. Numerous other aspects are provided.

    Managing hybrid automatic repeat request (HARQ) memory for radio tune-away

    公开(公告)号:US10979182B2

    公开(公告)日:2021-04-13

    申请号:US15798308

    申请日:2017-10-30

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be configured to include procedures to selectively release a portion of hybrid automatic repeat request (HARQ) memory based on the priority of each component carrier of the first connection when performing a radio tune-away to a second connection. For example, the UE may determine the amount of memory space associated with the HARQ processes for the second connection and selectively release a portion of HARQ memory based on the priority of each component carrier of the first connection when the determined amount of memory space is greater than the empty space of the HARQ memory.

    Systems and methods for information recovery from redundancy version packets

    公开(公告)号:US10530535B2

    公开(公告)日:2020-01-07

    申请号:US15528745

    申请日:2014-12-31

    Abstract: Systems, methods, apparatuses, and media are provided for recovery of information from redundancy version packets in systematic encoding environments when a redundancy version packet containing primarily systematic information may be corrupted. A plurality of redundancy version packets may be received at a user equipment device from a transmission device. Each redundancy version packet of the plurality of redundancy version packets may be based on a same group of information bits. A first redundancy version packet of the plurality of redundancy version packets may contain more bits of the same group of information bits than do the other redundancy version packets of the plurality of redundancy version packets. The same group of information bits may be recovered based on one or more second redundancy version packets of the plurality of redundancy version packets but not based on the first redundancy version packet.

    SYSTEMS AND METHODS FOR INFORMATION RECOVERY FROM REDUNDANCY VERSION PACKETS

    公开(公告)号:US20170324519A1

    公开(公告)日:2017-11-09

    申请号:US15528745

    申请日:2014-12-31

    Abstract: Systems, methods, apparatuses, and media are provided for recovery of information from redundancy version packets in systematic encoding environments when a redundancy version packet containing primarily systematic information may be corrupted. A plurality of redundancy version packets may be received at a user equipment device from a transmission device. Each redundancy version packet of the plurality of redundancy version packets may be based on a same group of information bits. A first redundancy version packet of the plurality of redundancy version packets may contain more bits of the same group of information bits than do the other redundancy version packets of the plurality of redundancy version packets. The same group of information bits may be recovered based on one or more second redundancy version packets of the plurality of redundancy version packets but not based on the first redundancy version packet.

    RESOURCE SPECIFIC INTERFERENCE MITIGATION
    39.
    发明申请
    RESOURCE SPECIFIC INTERFERENCE MITIGATION 审中-公开
    资源特异性干扰减缓

    公开(公告)号:US20150382362A1

    公开(公告)日:2015-12-31

    申请号:US14319509

    申请日:2014-06-30

    CPC classification number: H04W72/082 H04L1/0045 H04L1/1845 H04L1/201 H04W88/06

    Abstract: Methods, systems, and devices are described for identifying and mitigating in-device coexistence interference for multicarrier systems implementing soft combining decoding techniques. In some aspects, the described techniques include identifying time-frequency resources of a received signal subject to coexistence interference at a transceiver of a wireless device. The time-frequency resources may include, for example, symbols, slots, code-blocks, sub-frames, subcarriers, etc. Resource-specific mitigation may then be applied to the identified resources, for example, including skipping or nulling the interfered resources in the time domain, frequency domain, or both. In some aspects, the resource-specific mitigation may be performed at the soft-combining stage of the decoding process, such as by skipping or nulling one or more log likelihood ratio (LLR) instances that correspond to the interfered resource(s).

    Abstract translation: 描述了用于识别和减轻实现软组合解码技术的多载波系统的设备内共存干扰的方法,系统和设备。 在一些方面,所描述的技术包括识别在无线设备的收发器处的共存干扰的接收信号的时间 - 频率资源。 时间 - 频率资源可以包括例如符号,时隙,码块,子帧,子载波等。然后可以将资源特定的缓解应用于所识别的资源,例如包括跳过或置零被干扰的资源 在时域,频域或两者中。 在一些方面,资源特定的缓解可以在解码过程的软组合阶段执行,例如通过跳过或归零对应于受干扰的资源的一个或多个对数似然比(LLR)实例。

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