Dynamic handover threshold adjustment

    公开(公告)号:US10455464B1

    公开(公告)日:2019-10-22

    申请号:US15593426

    申请日:2017-05-12

    Abstract: A method of allocating frequency bands of an access node includes determining a number of relay wireless devices attached to a donor access node neighboring the access node and transmitting to the access node information related to the number of relay wireless devices attached to the donor access node. An inter-frequency handover threshold of the access node is altered based at least in part on the information related to the number of relay wireless devices attached to the donor access node. Systems and methods relate to allocating frequency bands of an access node.

    Scheduling data packets prior to handover execution

    公开(公告)号:US10117133B1

    公开(公告)日:2018-10-30

    申请号:US15017843

    申请日:2016-02-08

    Abstract: A relay node is enabled to transmit, to an end-user wireless device, any data packets remaining in a buffer associated with the end-user wireless device, prior to executing a handover of the end-user wireless device. Upon initiating a handover, the relay node adjusts a scheduling operation to use a lowest-possible modulating coding scheme (MCS) in order to transmit the remaining buffered data to the end-user wireless device. Moreover, the scheduling operation is adjusted to ignore any subsequent channel quality indicator (CQI) reports from the end-user wireless device, thereby ensuring that the end-user wireless device has a higher chance of receiving the data. When the buffer is empty, the handover is executed.

    Systems and methods for selecting a donor for a relay wireless device

    公开(公告)号:US11012141B1

    公开(公告)日:2021-05-18

    申请号:US15618614

    申请日:2017-06-09

    Abstract: Exemplary embodiments described herein include systems, methods, and nodes for selecting a donor for a relay wireless device. Candidate signal arcs of a predetermined angle for a relay wireless device that do not meet an interference criteria are determined. Signals levels are scanned for the relay wireless device for signals received from a plurality of donor access nodes, the scanning iterating over the determined candidate signal arcs that do not meet the interference criteria. Candidate donor access nodes with a received signal level at the relay wireless device that meets a signal level criteria for each candidate signal arc based on the scanning are determined. And a donor access node is selected for the relay wireless device based on the determined candidate donor access nodes.

    Systems and methods for scheduling resources for relay nodes in a wireless network

    公开(公告)号:US10575216B1

    公开(公告)日:2020-02-25

    申请号:US15825869

    申请日:2017-11-29

    Abstract: A system for scheduling resources in a wireless network is provided. The system includes an access node configured to deploy a first radio air interface. The system also includes a relay node configured to attach to the first radio air interface and to deploy a second radio air interface to which one or more end-user wireless devices are attached. The system further includes a processor configured to perform operations including determining an indicator of congestion at the relay node, prioritizing traffic based on the indicator of congestion and a channel bandwidth between the relay node and the access node, and scheduling resources based on the prioritized traffic.

    Donor selection for relay access nodes

    公开(公告)号:US10149310B1

    公开(公告)日:2018-12-04

    申请号:US15017834

    申请日:2016-02-08

    Abstract: A relay wireless device is configured to function as a relay on behalf of a donor access node. The relay wireless device determines a preferred donor access node from among a plurality of candidate donor access nodes based on a measurement of a reference signal, such as an RSRP or SINR, associated with each access node within a range of the relay wireless device. The access nodes may be prioritized based on the measurement, as well as based on a maximum number of dedicated random access preambles provided by each access node, and a default paging cycle of each access node. The access node that has the highest priority based on a good RSRP/SINR, a high number of dedicated random access preambles, and a large paging cycle, is selected as the preferred donor access node, and a connection request submitted to the preferred donor access node.

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