RANDOM ACCESS CHANNEL (RACH) PROCEDURE POWER CONTROL

    公开(公告)号:US20200252974A1

    公开(公告)日:2020-08-06

    申请号:US16775056

    申请日:2020-01-28

    Abstract: Certain aspects of the disclosure provide techniques for random access channel (RACH) power control, including for message (MSGA) transmission by a user equipment (UE) for two-step RACH procedure. Certain aspects provide a method for wireless communication generally including determining a transmit power for transmitting a first message to a base station (BS) as part of a two-step RACH procedure, the first message comprising a first part and a second part. Determining the transmit power comprises determining a first transmit power for transmitting the first part based on a first function having parameters including a power ramping counter and a power ramping step. Determining the transmit power further comprises determining a second transmit power for transmitting the second part based on a second function having parameters including the power ramping counter and the power ramping step. The method further includes incrementing the power ramping counter based on transmitting the first message.

    BANDWIDTH PART (BWP) SELECTION
    512.
    发明申请

    公开(公告)号:US20200245304A1

    公开(公告)日:2020-07-30

    申请号:US16748562

    申请日:2020-01-21

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a second communication, of a bandwidth part (BWP) selection process, that indicates a subset of BWPs, of a set of BWPs, to be selected as a set of active BWPs, wherein the set of BWPs is configured to the UE for a component carrier via radio resource control signaling as a first communication of the BWP selection process, wherein the subset of BWPs includes one or more BWPs of the set of BWPs. In some aspects, the UE may select the subset of BWPs as the set of active BWPs based at least in part on receiving the second communication, wherein a particular BWP, of the subset of BWPs, is to be used for a post-BWP selection process communication. Numerous other aspects are provided.

    HANDLING OF CHANNEL ACCESS PROBLEMS
    514.
    发明申请

    公开(公告)号:US20200221309A1

    公开(公告)日:2020-07-09

    申请号:US16735504

    申请日:2020-01-06

    Abstract: A UE determines to send a transmission to a first base station on a first unlicensed frequency channel. The UE determines, for one or more attempts of a listen before talk (LBT) protocol, whether each attempt is a failed attempt or a successful attempt. The UE determines that the first unlicensed frequency channel is one of unavailable based on the LBT protocol failing due to a number of failed attempts exceeding for a first threshold number of failed attempts or a duration of failed attempts exceeding a first threshold duration, or available based on the LBT protocol being successful. The UE sends a report to the first base station indicating whether the first unlicensed frequency channel is unavailable or available through a unicast radio resource control (RRC) message or a medium access control (MAC) control element (CE).

    SYNCHRONIZATION SIGNAL BLOCK (SSB)-BASED POSITIONING MEASUREMENT SIGNALS

    公开(公告)号:US20200213968A1

    公开(公告)日:2020-07-02

    申请号:US16814971

    申请日:2020-03-10

    Abstract: Disclosed are techniques for utilizing synchronization signal blocks for positioning operations. In an aspect, a transmission point configures a set of synchronization signal blocks to be used as positioning measurement signals, each of the plurality of synchronization signal blocks comprising a primary synchronization signal, a secondary synchronization signal, and one or more physical broadcast channel signals, and transmits the set of synchronization signal blocks on a wireless downlink channel to enable a user device to perform a positioning measurement of at least one of the set of synchronization signal blocks. In an aspect, the user device receives, from the transmission point, the plurality of synchronization signal blocks on the wireless downlink channel, receives, from the transmission point, an indication of the set of synchronization signal blocks to be used as positioning measurement signals, and performs a positioning measurement of at least one of the set of synchronization signal blocks.

    POWER SAVING SIGNAL CONFIGURATION AND ADAPTATION

    公开(公告)号:US20200150736A1

    公开(公告)日:2020-05-14

    申请号:US16673630

    申请日:2019-11-04

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more power saving signals based at least in part on a selected power saving signal configuration of a set of power saving signal configurations, wherein the UE stores information identifying the set of power saving signal configurations; and perform a power saving operation based at least in part on the one or more power saving signals. In some aspects, a base station may determine one or more power saving signal configurations, of a set of power saving signal configurations, to be used to transmit one or more power saving signals; and transmit the one or more power saving signals using the one or more power saving signal configurations. Numerous other aspects are provided.

    DYNAMIC TIMING ADJUSTMENT FOR NEW RADIO INTEGRATED ACCESS AND BACKHAUL NODE

    公开(公告)号:US20200059879A1

    公开(公告)日:2020-02-20

    申请号:US16538403

    申请日:2019-08-12

    Abstract: Aspects of the present disclosure provide techniques for dynamically adjusting the access link timing alignment at the integrated access and backhaul (IAB) node. Specifically, features of the present disclosure provide techniques for signaling to one or more child nodes the timing advance and timing offset values associated with each operational mode of the IAB node that may impact the access link timing for the child node (for uplink and/or downlink transmissions). Additionally or alternatively, aspects of the present disclosure identify whether a gap period may be included in order to ensure that the child node has sufficient time to transition between states during the transition period (e.g., from downlink to uplink) when the IAB node dynamically adjusts the access link timing.

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