Connection establishment in a 5G radio access network

    公开(公告)号:US10986552B2

    公开(公告)日:2021-04-20

    申请号:US16303175

    申请日:2016-05-25

    Abstract: To establish a multi-AP RRC connection with a user device UD the UD in the coverage area of multiple APs selects suitable ones as cluster set candidates and reports this list to a temporary serving AP the UD chooses. The multi-AP connection itself is setup by the cluster set manager CSM. The CSM collects information from each AP about control channels and load in order to choose which APs will be in the cluster, which will be the serving AP, and to setup the multi-AP connection with the UD. Multiple message exchanges are described for this purpose. Once the multi-AP connection is established, if the UD's connection with the serving AP fails the UD can handover to another AP of the cluster set without having to re-establish a new RRC connection. This is particularly useful for networks subject to severe shadowing effects such as mmWave 5G.

    Delta beam comparison for UL/DL beam misalignment detection

    公开(公告)号:US11363603B2

    公开(公告)日:2022-06-14

    申请号:US17036717

    申请日:2020-09-29

    Abstract: In accordance with an example embodiment of the present invention, a method comprising: receiving, by a user equipment of a communication network, a request from a network node to use at least two beam configurations of multiple different beam configurations for the user equipment; measuring, by the user equipment, downlink received power on at least one reference signal using the at least two beam configurations; sending, by the user equipment on an uplink, information of at least two downlink received powers and at least one reference signal using the at least two beam configurations; receiving, by the user equipment, signaling from the network node comprising an indication of beam correspondence assessment from the network node; and adjusting, by the user equipment, uplink beam with reference to a downlink beam based on the received indication of beam correspondence assessment.

    Uplink Data Transfer
    14.
    发明申请
    Uplink Data Transfer 审中-公开
    上行数据传输

    公开(公告)号:US20160345209A1

    公开(公告)日:2016-11-24

    申请号:US14719695

    申请日:2015-05-22

    Abstract: A method including transmitting an uplink access request message by a user device (UD) for an access point (AP) in an access point cluster set of the UD; and monitoring a downlink control channel by the user device (UD) to determine, based at least partially upon the transmitted uplink access request message, if a subsequent uplink communication is to be transmitted by the user device (UD) to a serving access point and/or a stand-by access point of the access point cluster set.

    Abstract translation: 一种方法,包括:通过所述UD的接入点集群中的用于接入点(AP)的用户设备(UD)发送上行接入请求消息; 以及由所述用户设备(UD)监视下行链路控制信道,以至少部分地基于所发送的上行链路接入请求消息来确定所述用户设备(UD)的后续上行链路通信是否将被发送到服务接入点,以及 /或接入点集群集的备用接入点。

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