Method and apparatus for providing non-scheduled network access

    公开(公告)号:US11924882B2

    公开(公告)日:2024-03-05

    申请号:US17414516

    申请日:2018-12-21

    CPC classification number: H04W74/0833 H04W72/0446

    Abstract: A terminal device selects are source indicator to be used for non-scheduled access and transmits it to an access device of the network in the non-scheduled access. If it determines based on a response to the non-scheduled access, that it has selected the same resource indicator as another terminal device, it keeps the resource indicator but selects different physical random access channel occasions by setting a time offset for a retransmission with the selected resource indicator. An initial waiting time may be determined by the access device (e.g. based on a traffic amount on the access channel) and transmitted to the terminal device for setting the time offset. Also, a layer (2) error caused by a random access channel resource collision of terminal devices may be determined at the access device and a feedback indicating a non-acknowledgement for layer (2) may be transmitted to colliding terminal devices.

    Coordinating spectrum authorization for backhaul connections

    公开(公告)号:US10327150B2

    公开(公告)日:2019-06-18

    申请号:US15475981

    申请日:2017-03-31

    Abstract: Configuration information including location and radio capabilities for first and second network nodes (for example, DeNB and RN respectively) are provided to register them to a spectrum access system (SAS). To establish a DeNB-RN backhaul link on a shared radio spectrum the DeNB sends the SAS a request for radio resources and authorization to transmit. The configuration information and/or the request indicates the DeNB and the RN belong to a backhaul system. The DeNB receives a grant for the radio resources and authorization, and broadcasts the authorization to the RN. The RN scans a broadcast channel while its receiver is active and its transmitter is inactive; detects the authorization to transmit, changes its transmitter from inactive to active, and transmits a reply to the DeNB's broadcast. The RN's reply to the DeNB's broadcast is used to establish the backhaul link.

    Coordinating Spectrum Authorization For Backhaul Connections

    公开(公告)号:US20180288621A1

    公开(公告)日:2018-10-04

    申请号:US15475981

    申请日:2017-03-31

    CPC classification number: H04W16/14 H04B7/15542 H04L5/0035 H04W60/00

    Abstract: Configuration information including location and radio capabilities for first and second network nodes (for example, DeNB and RN respectively) are provided to register them to a spectrum access system (SAS). To establish a DeNB-RN backhaul link on a shared radio spectrum the DeNB sends the SAS a request for radio resources and authorization to transmit. The configuration information and/or the request indicates the DeNB and the RN belong to a backhaul system. The DeNB receives a grant for the radio resources and authorization, and broadcasts the authorization to the RN. The RN scans a broadcast channel while its receiver is active and its transmitter is inactive; detects the authorization to transmit, changes its transmitter from inactive to active, and transmits a reply to the DeNB's broadcast. The RN's reply to the DeNB's broadcast is used to establish the backhaul link.

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