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    • 15. 发明申请
    • BI-DIRECTIONAL RLC NON-PERSISTENT MODE FOR LOW DELAY SERVICES
    • 用于低延迟服务的双向RLC非持续模式
    • WO2007131880A1
    • 2007-11-22
    • PCT/EP2007/054273
    • 2007-05-03
    • TELEFONAKTIEBOLAGET LM ERICSSON (publ)DIACHINA, John WalterAXELSSON, HåkanSCHLIWA-BERTLING, Paul
    • DIACHINA, John WalterAXELSSON, HåkanSCHLIWA-BERTLING, Paul
    • H04L1/18
    • H04L1/1838H04L1/1848H04L1/1877H04L1/188
    • The transfer delay QoS attribute for delay-sensitive applications is enforced in radio access networks by determining the ongoing validity of incomplete data packets based on a maximum data transfer delay constraint. According to one embodiment, upper-layer packet data units (PDUs) associated with an application having a maximum data transfer delay constraint are transferred by starting a timer responsive to initial transmission of an RLC data block associated with one or more of the upper-layer PDUs. The timer is initialized to a timer value that is based on the maximum data transfer delay constraint. The RLC data block is retransmitted responsive to a received message indicating reception of the RLC data block is unacknowledged so long as the timer has not expired. The RLC data block is deleted from memory responsive to the timer expiring or a received message indicating reception of the RLC data block is acknowledged.
    • 通过基于最大数据传输延迟约束确定不完整数据分组的持续有效性,在无线电接入网络中实现延迟敏感应用的传输延迟QoS属性。 根据一个实施例,与具有最大数据传输延迟约束的应用相关联的上层分组数据单元(PDU)通过启动定时器来传送,所述定时器响应于与上层中的一个或多个相关联的RLC数据块的初始传输 的PDU。 定时器被初始化为基于最大数据传输延迟约束的定时器值。 只要定时器没有到期,响应于接收到的消息来重发RLC数据块,指示RLC数据块的接收是未被确认的。 响应于定时器到期而从存储器中删除RLC数据块,或确认接收到指示RLC数据块的接收的接收消息。
    • 16. 发明申请
    • CIRCUIT SWITCHED FALLBACK FOR MOBILE TERMINATED CALLS
    • 用于移动终端呼叫的电路切换倒带
    • WO2009095777A1
    • 2009-08-06
    • PCT/IB2009/000163
    • 2009-01-30
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)VIKBERG, Jari, TapioDIACHINA, John, WalterOLSSON, MagnusÖSTRUP, Peter
    • VIKBERG, Jari, TapioDIACHINA, John, WalterOLSSON, MagnusÖSTRUP, Peter
    • H04W76/02H04W36/14H04W68/12
    • H04W68/12H04W36/0022
    • In order to prevent a mobile terminated (MT) call to a user equipment (UE) from being lost by addressing a Location Area/Tracking Area (LA/TA) mismatch problem that could occur during a circuit switched (CS) Fallback, the method comprises the steps of : receiving a paging message from a mobility management entity, MME, where the paging message identifies suitable location areas, the paging message is sent because a first mobile switching center, MSCl, received a MT call request for the UE; determining that there are no 2G/3G cells belonging to the suitable location areas based on a current location of the UE; identifying a target 2G/3G cell in a location area associated with the cuttent location of the UE but not part of the 2G/3G cells belonging to the suitable location areas; and enabling a signaling connection to be established between the UE and the first MSCl via a second mobile switching center, MSC2, where the second MSC2 interfaces with a base station controller, BSC2, or a radio network controller, RNC2, that manages the target 2G/3G cell, where the signaling connection allows the MT call to be established with the UE.
    • 为了防止通过寻址可能在电路交换(CS)回退期间发生的位置区域/跟踪区域(LA / TA)不匹配问题来阻止对用户设备(UE)的移动终止(MT)呼叫丢失,该方法 包括以下步骤:从移动性管理实体MME接收寻呼消息,其中寻呼消息识别合适的位置区域,由于第一移动交换中心MSC1接收到对该UE的MT呼叫请求,所以寻呼消息被发送; 基于UE的当前位置确定不存在属于合适位置区域的2G / 3G小区; 在与UE的切入点相关联的位置区域中识别目标2G / 3G小区,而不是属于合适位置区域的2G / 3G小区的一部分; 并且经由第二移动交换中心MSC2在UE和第一MSC1之间建立信令连接,其中第二MSC2与管理目标2G的基站控制器,BSC2或无线电网络控制器RNC2进行接口 / 3G小区,其中信令连接允许与UE建立MT呼叫。