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    • 4. 发明申请
    • METHOD AND APPARATUS FOR SEMI-PERSISTENT SCHEDULING FOR MULTIPLE UPLINK VOIP CONNECTIONS
    • 多个UPLINK VOIP连接的半密度调度方法和设备
    • US20110038334A1
    • 2011-02-17
    • US12854519
    • 2010-08-11
    • Xiaolong HuangSaiyiu D. Ho
    • Xiaolong HuangSaiyiu D. Ho
    • H04W4/00H04B7/00H04L12/56
    • H04W72/04H04B7/2606H04W76/15H04W84/047
    • Semi-Persistent Scheduling (SPS) addresses a variable number of sessions between nodes, such as an SPS operation applied on a radio bearer between a Remote evolved Base Node (ReNB) and a Donor evolved Base Node (DeNB). As the number of VoIP connections changes over time, the upper bound of the required uplink grant size also changes. Even if the number of VoIP connections is assumed to be fixed over a period of time, the superposition of “on” and “off” intervals of multiple VoIP calls will require the uplink grant size to change over time much more dynamically. Using a fixed uplink SPS size based on a fixed number of VoIP calls will result in inefficient use of uplink grants, (i.e., reserving more grants than needed) or Physical Downlink Control Channel (PDCCH) signaling overhead for VoIP packets that cannot be served by SPS. A set of solutions are provided for semi-persistently scheduling multiple VoIP connections between a ReNB and a DeNB so as to enhance efficient use of SPS and still meet Quality of Service (QoS) requirement(s) of VoIP traffic.
    • 半持续调度(SPS)解决节点之间可变数量的会话,例如应用于远程演进的基本节点(ReNB)和捐助者演进的基本节点(DeNB)之间的无线电承载上的SPS操作。 随着VoIP连接的数量随着时间的推移而变化,所需上行链路授权大小的上限也发生变化。 即使假设VoIP连接的数量在一段时间内是固定的,因此多个VoIP呼叫的“打开”和“关闭”间隔的叠加将要求上行授权大小随着时间的推移而更加动态地改变。 使用基于固定数量的VoIP呼叫的固定的上行SPS尺寸将导致无法由VoIP服务的VoIP分组的上行链路授权(即,保留比需要更多的授权)或物理下行链路控制信道(PDCCH)信令开销的低效使用 SPS。 提供了一组解决方案,用于半持续调度ReNB和DeNB之间的多个VoIP连接,以便增强SPS的有效使用,并仍然满足VoIP流量的服务质量(QoS)要求。