POWER EFFICIENT RELAY DISCOVERY PROCEDURE FOR SIDELINK

    公开(公告)号:US20220141757A1

    公开(公告)日:2022-05-05

    申请号:US17512441

    申请日:2021-10-27

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may implement a power-efficient discovery procedure to establish a relay. In some cases, the UE may monitor a resource pool for a relay beacon from a relay device and measure a received power of the relay beacon. If the received power satisfies a threshold, the UE may monitor for a relay announcement from the relay device and establish a sidelink connection with the relay device based on the relay announcement. The relay beacon may support a two-stage discovery procedure, where the UE determines a relay device is available before processing a relay announcement to conserve power. Additional techniques for proximity-based discovery are described herein.

    Scalable preamble design for random access

    公开(公告)号:US11212833B2

    公开(公告)日:2021-12-28

    申请号:US16592608

    申请日:2019-10-03

    Abstract: Methods, systems, and devices for wireless communications are described. An example of a method in accordance with the present disclosure may include a UE identifying that the UE is configured to use a contention-based or uncoordinated (e.g., two-step) random access procedure including an uplink message and a downlink response, where the uplink message includes at least a preamble portion and a data portion. The UE may map an identifier of the UE into a block of source symbols, generate a codeword including a block of coded symbols from the block of source symbols, and generate a set of sequences, where each sequence is based at least in part on a value associated with a corresponding coded symbol of the block of coded symbols. The UE may transmit the generated set of sequences in a preamble portion of the uplink message.

    Adaptation of power parameter values in discontinuous reception

    公开(公告)号:US11178618B2

    公开(公告)日:2021-11-16

    申请号:US16731341

    申请日:2019-12-31

    Abstract: Some techniques and apparatuses described herein permit a user equipment (UE) to transition among different power settings for different parameters that impact the amount of power consumed by the UE. Such transitions may be configured to occur during a discontinuous reception (DRX) active time to provide power savings during the DRX active time or increase throughput during the DRX active time. In some aspects, the transitions may be signaled by a base station based at least in part on traffic volume for the UE, which may assist with improving throughput (e.g., when data is available for the UE), and which may assist with extending battery life of the UE (e.g., when data is not available for the UE). In some aspects, such transitions and associated parameter values may be preconfigured or a transition may be triggered by expiration of a timer, thereby reducing signaling overhead.

    SEMI-PERSISTENT SCHEDULING MANAGEMENT IN NEW RADIO

    公开(公告)号:US20210273753A1

    公开(公告)日:2021-09-02

    申请号:US17323726

    申请日:2021-05-18

    Abstract: Methods, systems, and devices for wireless communications are described. In one example, a method includes receiving signaling from a base station to activate a semi-persistent scheduling (SPS) configuration for transmission between the base station and the UE, and receiving a hybrid automatic repeat request (HARM) timing for downlink transmissions based at least in part on the SPS configuration being activated. In another example, the method includes establishing a connection with a base station using a component carrier (CC), the CC having a plurality of bandwidth parts (BWPs), receiving signaling that indicates an SPS configuration or other types of pre-configured resources associated with at least a first BWP of the plurality of BWPs and transmitting or receiving using at least the first BWP according to the SPS configuration or other types of pre-configured resources associated with at least the first BWP.

    TECHNIQUES FOR REDUCING FALSE PAGING RECEPTION

    公开(公告)号:US20210258916A1

    公开(公告)日:2021-08-19

    申请号:US17175382

    申请日:2021-02-12

    Inventor: Linhai He

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support a reduction in false positive paging. In some implementations, a method of wireless communication includes receiving, at a user equipment (UE) from a base station, a paging downlink control information (DCI). The paging DCI message is encoded to indicate an addressee of a paging message or indicates one or more UEs or a location of radio resources of the paging message in a time dimension, a frequency dimension, or both. The method also includes determining, at the UE, whether the paging message is addressed to the UE based on: an encoding of the paging DCI message, whether the one or more UEs include the UE, or the location of the radio resources of the paging message in the time dimension, the frequency dimension, or both. Other aspects and features are also claimed and described.

    Backoff procedure in random access
    138.
    发明授权

    公开(公告)号:US11071147B2

    公开(公告)日:2021-07-20

    申请号:US16534799

    申请日:2019-08-07

    Inventor: Linhai He

    Abstract: Certain aspects of the present disclosure provide techniques for a random backoff procedure in a wireless communication network such as a new radio (NR) network. A method for wireless communications that can be performed by a user equipment (UE) is provided. The method includes sending a random access preamble to a base station (BS) during a random access procedure. The method includes receiving a random access response from the BS including a backoff indicator. The method includes determining whether to send a contention-free random access (CFRA) preamble to the BS during the backoff period based, at least in part, on a type of the random access procedure.

    Media access control for wakeup radios

    公开(公告)号:US11057830B2

    公开(公告)日:2021-07-06

    申请号:US15808639

    申请日:2017-11-09

    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may identify a jitter pattern for a wakeup message. A station may listen using a wakeup radio for a wakeup message during wakeup listening periods according to the identified jitter pattern. A station may receive a preamble having a first bandwidth and a wakeup message having a second bandwidth. An AP may transmit an identifier key to a station, and the station may determine a rotating identifier associated with the AP based on the received identifier key. The station may receive a wakeup message from the AP, compare a sender identifier with the rotating identifier, and power on a second radio. A station may also receive a wakeup message that includes an indication of which station are to be activated.

    Power headroom report procedure for a wireless network

    公开(公告)号:US11044676B2

    公开(公告)日:2021-06-22

    申请号:US16554145

    申请日:2019-08-28

    Abstract: Aspects of the disclosure relate to communication of power headroom reports in wireless communication networks. A user equipment (UE) may measure a path loss based on a triggering path loss reference signal (PL-RS) and trigger generation of a power headroom report (PHR) based on the path loss. The UE may identify uplink resources for communication of the PHR to a base station and determine whether the uplink resources are quasi-co-located with the triggering PL-RS. When the uplink resources are quasi-co-located with the triggering PL-RS, the user equipment may transmit the PHR utilizing the uplink resources. Otherwise, the UE may generate the PHR such that it includes information identifying the triggering PL-RS.

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