Determining access parameters based on likelihood of HD voice service

    公开(公告)号:US10469668B1

    公开(公告)日:2019-11-05

    申请号:US15691538

    申请日:2017-08-30

    Abstract: An exemplary method involves a user equipment (UE) receiving a communication-origination request to initiate a communication with a given counterpart. In response, the UE: (a) uses historical communication data for one or more previous communications as a basis for evaluating whether the UE is likely to be assigned a particular codec, from a plurality of possible codecs, for communication with the given counterpart; (b) based on results of the evaluation, determines a respective setting for each of one or more access parameters affecting a likelihood of successfully establishing the communication with the given counterpart; and (c) performs the communication-origination process according to the determined settings for the one or more access parameters, to initiate the requested communication with the given counterpart.

    Selection of modulation and coding scheme (MCS) based on packet length

    公开(公告)号:US10333649B1

    公开(公告)日:2019-06-25

    申请号:US15208398

    申请日:2016-07-12

    Abstract: One or more packets to be transmitted to or from a user equipment (UE) device are determined to have a particular packet length, e.g., based on a vocoder to be used for a voice over Long Term Evolution (VoLTE) call. An initial modulation and coding scheme (MCS) is selected for transmission of the packets based on channel conditions. The initial MCS is replaced by an alternative MCS having a lower efficiency than the initial MCS in response to a determination that the alternative MCS would require the same number of resource blocks to transmit a packet having the particular packet length as the initial MCS. One or more resource blocks are allocated for transmission of the one or more packets having the particular packet length using the alternative MCS. Indications of the allocated one or more resource blocks and the alternative MCS are transmitted to the UE.

    Coordinated multipoint mode selection for relay base station

    公开(公告)号:US10211907B1

    公开(公告)日:2019-02-19

    申请号:US15165981

    申请日:2016-05-26

    Abstract: Disclosed herein are methods and systems for selection of a coordinated multipoint (CoMP) mode for a relay base station, based on traffic load being experienced between the relay WCD and donor base station that provide the relay tunnel used by the relay base station for backhaul communication. An exemplary method involves the relay base station: (i) determining a load indication for a communication link between a relay wireless communication device (WCD) and a donor base station, (ii) using the load indication for the communication interface between the relay WCD and the donor base station as a basis for selecting a CoMP mode from a plurality of available CoMP modes; and (iii) providing wireless service in at least one coverage area according to the selected CoMP mode.

    Method and system for scanning for target coverage in order of signal strength threshold

    公开(公告)号:US10172075B1

    公开(公告)日:2019-01-01

    申请号:US13967144

    申请日:2013-08-14

    Abstract: A method and system for scanning for target coverage in order of signal strength threshold. In a wireless communication system that defines a plurality of wireless coverage areas, a user equipment device (UE) may seek to select one of the coverage areas in which to operate. Each coverage area may have a respective downlink receive signal strength threshold (DSST) defining a minimum downlink receive signal strength for triggering UE selection of the coverage area. While operating in the wireless communication system, the UE may be arranged to rank-order the coverage areas in order of their respective DSSTs so as to define a sequence of the coverage areas. The UE may be arranged to then scan the coverage areas in order of the defined sequence, in search of a coverage area to select to operate in.

    Dynamic adjustment of uplink coordinated multipoint service

    公开(公告)号:US10149125B1

    公开(公告)日:2018-12-04

    申请号:US14684287

    申请日:2015-04-10

    Abstract: Coordinated multipoint (CoMP) can improve uplink service in cellular networks. However, uplink CoMP can also burden an access network, such as by increasing processing loads at base stations and/or increasing traffic on backhaul links between base stations. Accordingly, exemplary methods and systems help to dynamically select an uplink CoMP mode for a user equipment (UE) based on various factors, such as whether the UE is located at a border cell, whether or not carrier aggregation is being utilized for downlink communications with the UE, and/or whether or not the UE is a heavy data user, among other possible factors.

    UE-context release in response to failure of air interface communication

    公开(公告)号:US09820331B1

    公开(公告)日:2017-11-14

    申请号:US14619346

    申请日:2015-02-11

    CPC classification number: H04W76/34 H04W76/18 H04W76/38

    Abstract: Disclosed is a method and system for release of a UE's context record in response to failure of air interface communication. As disclosed, a wireless communication system includes a base station that has a protocol stack defining a series of logical processing layers through which the base station sequentially processes data for transmission to a UE. The layers include an upper layer and a physical layer at which the base station processes the data for communication over an air interface to the UE. Accordingly, the base station detects failure of air interface communication between the base station and the UE. In response to detecting the failure, and without waiting to detect at the upper layer a further failure corresponding with the failure of the air interface communication, the base station transmits to a network controller a UE-context release request requesting release of bearer context that was established for the UE.

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