SLOTTED TRANSMISSION AND DIRECTIONAL RECEPTION OF RTS

    公开(公告)号:US20180115994A1

    公开(公告)日:2018-04-26

    申请号:US15493946

    申请日:2017-04-21

    Abstract: A receiving device may remain in omni-directional mode while receiving RTS messages from transmitting devices. Multiple devices may transmit RTS messages at the same time, causing interference and preventing intended recipients of the RTS messages from transmitting a CTS message. To increase medium reuse, RTS may be transmitted and received in a slotted and directional manner. A receiving device may select a sweeping pattern for receiving transmission from neighboring devices. The receiving device may also determine one or more time slots allocated to each of the neighboring devices for receiving transmissions from the neighboring devices. The receiving device may transmit an indication of the sweeping pattern and the time slots to one or more of the neighboring devices. Subsequently, during one of the indicated time slots, the receiving device may perform a beam sweep to receive one or more RTS messages from one of the neighboring devices.

    NON-UNIFORM TRANSMISSION OF SYNCHRONIZATION SIGNALS

    公开(公告)号:US20180054790A1

    公开(公告)日:2018-02-22

    申请号:US15462662

    申请日:2017-03-17

    Abstract: The base station that is configured to transmit in a beamformed manner may set different transmission rates for different directions of the beams. During an initial access stage, the base station may determine how densely user equipments are located in various regions surrounding the base station, and may assign more beams for transmission of an initial access signal in an area with more UEs. The apparatus may be a base station. The base station divides a region surrounding the base station into a plurality of sub-regions, where one region of the plurality of sub-regions covers a greater area than at least one other region of the plurality of sub-regions. The base station assigns each beam of a plurality of beams of the base station to a respective sub-region of the plurality of sub-regions. The base station transmits at least one initial access signal in each direction of the plurality of beams using a respective beam of the plurality of beams, each direction of the plurality of beams corresponding to a respective sub-region of the plurality of sub-regions.

    RANDOM ACCESS RESPONSE SCHEMES FOR ENHANCED REDUCED CAPABILITY (REDCAP) USER EQUIPMENT

    公开(公告)号:US20240129957A1

    公开(公告)日:2024-04-18

    申请号:US18481118

    申请日:2023-10-04

    CPC classification number: H04W74/0833 H04W72/02 H04W74/0875

    Abstract: Methods, systems, and devices for wireless communication are described. A first network node of a first type of UE may receive a control message indicating one or more PRACH resources to be used for random access of a second network node. Each of the one or more PRACH resources being associated with a respective one or more user equipment (UE) types. The first network node may determine that none of the indicated PRACH resources are associated with the first type of UE. The first network node may select a PRACH resource from the indicated PRACH resources in accordance with a ranking for PRACH resource selection. The first network node may transmit a random access preamble to the second network node via the selected PRACH resource.

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