UPLINK CONGESTION CONTROL BASED ON SIP MESSAGING

    公开(公告)号:US20210258824A1

    公开(公告)日:2021-08-19

    申请号:US16794943

    申请日:2020-02-19

    Abstract: Uplink congestion control based on session initiation protocol (SIP) messaging includes receiving SIP messages from user equipment devices (UEs) via established wireless uplink connections; and monitoring a rate of the SIP messages received from the UEs. Uplink congestion control further includes identifying whether the rate of received SIP messages exceeds a first threshold during a first period of time; and sending SIP response messages to the UEs to reduce congestion on the wireless uplink connections upon identifying that the rate of received SIP messages exceeded the first threshold over the first period of time, where the sent SIP response messages instruct the UEs to resend the SIP messages after predetermined time delays.

    Access class barring and redirecting of emergency calls

    公开(公告)号:US09641993B2

    公开(公告)日:2017-05-02

    申请号:US14754752

    申请日:2015-06-30

    CPC classification number: H04W4/90 H04W48/02 H04W48/16

    Abstract: A method, a device, and a non-transitory storage medium having instructions to store a first access class barring parameter and a second access class barring parameter pertaining to emergency calls via a cell on which a wireless device is camped; receive an indication that an emergency call is to be established; select one or more values of the second barring parameter in response to a determination that a value of the first barring parameter indicates that the emergency call cannot be established via the cell; select a first candidate cell based on the one or more values of the second barring parameter; and determine whether the emergency call can be established via the first candidate cell based on the one or more values of the second barring parameter and system information pertaining to the first candidate cell.

    Uplink congestion control based on SIP messaging

    公开(公告)号:US11337108B2

    公开(公告)日:2022-05-17

    申请号:US16794943

    申请日:2020-02-19

    Abstract: Uplink congestion control based on session initiation protocol (SIP) messaging includes receiving SIP messages from user equipment devices (UEs) via established wireless uplink connections; and monitoring a rate of the SIP messages received from the UEs. Uplink congestion control further includes identifying whether the rate of received SIP messages exceeds a first threshold during a first period of time; and sending SIP response messages to the UEs to reduce congestion on the wireless uplink connections upon identifying that the rate of received SIP messages exceeded the first threshold over the first period of time, where the sent SIP response messages instruct the UEs to resend the SIP messages after predetermined time delays.

    PAGING PRIORITY AND WIRELESS ACCESS FOR NON-HIGH PRIORITY ACCESS USERS DURING WIRELESS NETWORK CONGESTION

    公开(公告)号:US20220279478A1

    公开(公告)日:2022-09-01

    申请号:US17746433

    申请日:2022-05-17

    Abstract: A method for paging priority and wireless access which includes receiving, at a base station and from a core network, a paging message associated with a priority connection from a first user equipment device (UE) having an elevated priority status, to a second UE having a non-elevated priority status. The method further includes determining, at the base station, that non-elevated priority wireless access channels are congested, detecting, at the base station, a priority indicator within the received paging message in response to determining that the non-elevated priority wireless access channels are congested. The method further includes caching, at the base station, an identifier of the second UE in response to detecting the priority indicator in the received paging message, and establishing a wireless connection between the first UE and the second UE upon verifying that the identifier of the second UE has been cached.

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