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    • 86. 发明授权
    • Device-initiated codec rate change during a voice call
    • 语音通话过程中设备启动的编解码器速率更改
    • US09253238B2
    • 2016-02-02
    • US14042500
    • 2013-09-30
    • Apple Inc.
    • Samy Khay-IbbatSarma V. VangalaSreevalsan VallathTarik Tabet
    • H04L29/06H04W24/08H04W28/02H04L12/811
    • H04L47/38H04L65/601H04L65/602H04L65/604H04L65/608H04L65/80H04W24/08H04W28/0236
    • A method for initiating a codec rate change during a VoIP call by a wireless communication device is disclosed. The method can include the wireless communication device establishing a first codec rate for use in the VoIP call during a call establishment phase; using the first codec rate to encode voice data for transmission during a first portion of the VoIP call; determining a channel quality while using the first codec rate; determining that the channel quality satisfies a threshold for requesting a codec rate change; requesting a codec rate change from the first codec rate to a second codec rate in response to the channel quality satisfying the threshold; and using the second codec rate to encode voice data for transmission during a second portion of the VoIP call.
    • 公开了一种用于在由无线通信设备进行的VoIP呼叫期间发起编解码器速率改变的方法。 该方法可以包括无线通信设备在呼叫建立阶段建立用于VoIP呼叫的第一编解码器速率; 使用第一编解码器速率来编码在VoIP呼叫的第一部分期间传输的语音数据; 在使用第一编解码器速率的同时确定信道质量; 确定信道质量满足用于请求编解码器速率改变的阈值; 响应于满足阈值的信道质量,请求从第一编解码器速率向第二编解码速率改变编解码器速率; 以及使用第二编解码速率来编码语音数据以在VoIP呼叫的第二部分期间进行传输。
    • 89. 发明申请
    • Device and Method for Optimized Handovers
    • 优化切换的设备和方法
    • US20150003420A1
    • 2015-01-01
    • US14320013
    • 2014-06-30
    • APPLE INC.
    • Sarma VANGALATarik TabetSwaminathan BalakrishnanSreevalsan Vallath
    • H04W36/30H04W36/20
    • H04W36/22H04W36/14H04W84/12
    • A device and method performs a handover. The method includes establishing a connection to a cellular network. The method includes determining whether a WiFi network is available for connection. The method includes determining performance data of the WiFi network based upon network metrics. The method includes determining a quality of service (QoS) parameter associated with a currently executed application, the QoS parameter being indicative of whether a handover from the cellular network to the WiFi network is permitted. The method includes performing the handover from the cellular network to the WiFi network when the performance data of the WiFi network satisfies a set of predetermined criteria for the network metrics and the QoS parameter indicates the handover is permitted.
    • 一种装置和方法执行切换。 该方法包括建立到蜂窝网络的连接。 该方法包括确定WiFi网络是否可用于连接。 该方法包括基于网络度量来确定WiFi网络的性能数据。 该方法包括确定与当前执行的应用相关联的服务质量(QoS)参数,所述QoS参数指示是否允许从蜂窝网络到WiFi网络的切换。 该方法包括当WiFi网络的性能数据满足网络度量的一组预定标准时执行从蜂窝网络到WiFi网络的切换,并且QoS参数指示允许切换。