TECHNIQUES FOR SIDELINK FULL-DUPLEX SEMI-STATIC TRANSMISSIONS

    公开(公告)号:US20230081233A1

    公开(公告)日:2023-03-16

    申请号:US17477328

    申请日:2021-09-16

    Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A first user equipment (UE) may transmit, to a set of UEs, an indication of a first semi-static traffic pattern between the first UE and a second UE. In some examples, the first semi-static traffic pattern may indicate a pattern for transmission or reception between the first UE and the second UE using a beam pair during a time period. The first UE may receive a response, from one or more UEs, indicating one or more semi-static traffic patterns for the time period. The first UE may then transmit, to a third UE of the one or more UEs, an indication of selection of a second semi-static traffic pattern for communication between the first UE and the third UE during the time period.

    Beam selection for carrier aggregation in millimeter wave sidelinks

    公开(公告)号:US11601917B2

    公开(公告)日:2023-03-07

    申请号:US17303559

    申请日:2021-06-02

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a set of frequency components to use in sidelink operation based at least in part on an inter-band carrier aggregation configuration. In some aspects, the set of frequency components includes one or more frequency components in a first frequency band and one or more frequency components in a second frequency band. The UE may communicate with another UE over a sidelink using one or more beams that are selected based at least in part on channel conditions associated with the one or more frequency components in the first frequency band and channel conditions associated with the one or more frequency components in the second frequency band. Numerous other aspects are provided.

    Downlink control information response to idle mode requests

    公开(公告)号:US11589385B2

    公开(公告)日:2023-02-21

    申请号:US17454730

    申请日:2021-11-12

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a request message to a base station while operating in an idle mode. The base station may generate, in response to the request message, a response message including a random access preamble index corresponding to the received request message. In some cases, the base station may determine a radio network temporary identifier (RNTI) based on the random access preamble index and scramble a cyclic redundancy check (CRC) of the response message with the RNTI. In some examples, the random access preamble index may be included in a payload of the response message. The UE may monitor a physical downlink control channel for the response message to the request message and receive the response message on the physical downlink control channel.

    Backward cancellation indication for sidelink transmission

    公开(公告)号:US11589268B2

    公开(公告)日:2023-02-21

    申请号:US17172963

    申请日:2021-02-10

    Abstract: Systems, apparatus, methods, and computer-readable media that enable and support backward cancellation indication for sidelink transmissions are described. In a situation where a sidelink data transmission with respect to one or more resources previously reserved for sidelink communication is ineffectual, a sidelink transmission user equipment (UE) may indicate the ineffectual data transmission in a transmission opportunity subsequent to the transmission having an ineffectual data transmission, such as by transmitting a backward cancellation indication (BCI). The BCI may provide information to a corresponding sidelink receiver UE regarding the resource with respect to the ineffectual data transmission. The sidelink receiver UE may use information provided by the BCI in determining whether to alter utilization of signals received on resources of the ineffectual data transmission. Other aspects and features are also claimed and described.

    TECHNIQUES FOR SIDELINK SENSING AND POSITIONING

    公开(公告)号:US20230052126A1

    公开(公告)日:2023-02-16

    申请号:US17401945

    申请日:2021-08-13

    Abstract: This disclosure provides systems, methods and apparatus, for measurement and reporting procedures associated with a sidelink positioning reference signal (SL-PRS). In one aspect, a first user equipment (UE), which may function as a sidelink anchor node, may transmit an SL-PRS to a second UE in accordance with a slot format or structure that is dedicated for SL-PRS transmissions. The first UE may select resources for the transmission of the SL-PRS via sensing and exclusion or using a set of resources that are dedicated for SL-PRS transmissions. The second UE may receive the SL-PRS and use the SL-PRS to acquire positioning information, in accordance with an observed time difference of arrival (OTDOA)-based positioning method, or may transmit a second SL-PRS to the first UE to facilitate acquisition of positioning information at the first UE, in accordance with a round-trip-time (RTT)-based positioning method.

    Window for transmitting a positioning reference signal

    公开(公告)号:US11582006B2

    公开(公告)日:2023-02-14

    申请号:US17001653

    申请日:2020-08-24

    Abstract: Methods, systems, and devices for transmitting a positioning reference signal over a channel within a window including a set of positioning reference signal transmission opportunities. A device may identify the window and perform a channel access procedure to access the channel during the window. Based on performing the channel access procedure, the device may obtain access to the channel and determine that a portion of the positioning reference signal transmission opportunities are remaining within the window. The device may transmit a positioning reference signal during one or more of the remaining positioning reference signal transmission opportunities. In some cases, the device may refrain from transmitting a positioning reference signal during a portion of a positioning reference signal transmission opportunity even if the device gains access to the channel during that portion of the positioning reference signal transmission opportunity.

    Maximum number of path loss or uplink spatial transmit beam reference signals for downlink or uplink positioning reference signals

    公开(公告)号:US11576060B2

    公开(公告)日:2023-02-07

    申请号:US16871889

    申请日:2020-05-11

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, via one or more component carriers, one or more downlink reference signals from one or more serving or neighboring transmission-reception points (TRPs), wherein a number of the received one or more downlink reference signals is less than or equal to a maximum number of downlink path loss estimates, spatial transmit beam determinations, spatial receive beam determinations, or any combination thereof to be simultaneously maintained by the UE for positioning purposes, and wherein the maximum number does not include any downlink reference signals the UE is already monitoring for other purposes, and performs a downlink path loss estimate, a spatial transmit beam determination, a spatial receive beam determination, or any combination thereof at least based on each of the received one or more downlink reference signals.

    Positioning reference signal measurement request for carrier phase-based positioning

    公开(公告)号:US11573286B1

    公开(公告)日:2023-02-07

    申请号:US17411452

    申请日:2021-08-25

    Abstract: Disclosed are various techniques for wireless communication, and in particular, carrier-phase based positioning. In an aspect, a position estimation entity may obtain a first differential measurement based on measurement of a first set of positioning reference signal (PRS) resources by a first node and measurement of a second set of PRS resources by a second node, wherein the first set of PRS resources are phase-coherent with the second set of PRS resources. The position estimation entity may obtain a second differential measurement based on measurement of a third set of PRS resources by the first node and measurement of a fourth set of PRS resources by the second node, wherein the third set of PRS resources are phase-coherent with the fourth set of PRS resources. The position estimation entity may determine a positioning estimate of a target node based on the first differential measurement and the second differential measurement.

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