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    • 31. 发明授权
    • Packet core function and method of selecting a packet data service node/foreign agent in a packet data network
    • 分组核心功能和在分组数据网络中选择分组数据业务节点/外部代理的方法
    • US06834050B1
    • 2004-12-21
    • US09658432
    • 2000-09-08
    • Lila MadourLouis SeguraKarim Shafik
    • Lila MadourLouis SeguraKarim Shafik
    • H04L1228
    • H04W48/18H04M15/00H04M15/31H04M15/43H04M15/8038H04M2215/204H04M2215/22H04M2215/32H04M2215/34H04M2215/7442H04M2215/96H04W8/06H04W36/12
    • A Packet Core Function (PCF) and method of consistently selecting a Packet Data Service Node (PDSN) from a plurality of PDSNs in a packet data network to host a data session for a Mobile Node (MN). In a first embodiment, a static lookup table in the PCF is used to associate a list of identifiers for MNs and a list of the plurality of PDSNs in the network. The PCF obtains an identifier for the MN and utilizes the lookup table and a hash function to associate the identifier for the MN with a PDSN. The PDSN is then selected by the PCF to host the data session for the MN. In another embodiment, the PCF also includes a cache timer and a cache memory that stores the identifier for the MN and the IP address of the selected PDSN for a predetermined time period following the handoff of the MN to another PCF. If the MN returns to the PCF within the predetermined period of time, the PCF reselects the same PDSN to host the data session. In another embodiment, following the initial selection of a PDSN to host the data session, the EP address of the PDSN is sent to the MN which then passes the IP address of the PDSN to any subsequent PCFs where the MN roams. A PDSN zone ID may be utilized in lieu of the fill IP address.
    • 分组核心功能(PCF)以及从分组数据网络中的多个PDSN中一致地选择分组数据业务节点(PDSN)的方法,以主动移动节点(MN)的数据会话。 在第一实施例中,PCF中的静态查找表用于将MN的标识符列表和网络中的多个PDSN的列表相关联。 PCF获得MN的标识符并利用查找表和散列函数将MN的标识符与PDSN相关联。 然后由PCF选择PDSN以主持MN的数据会话。 在另一个实施例中,PCF还包括高速缓存定时器和高速缓存存储器,用于在MN切换到另一PCF之后的预定时间段内存储MN的标识符和所选择的PDSN的IP地址。 如果MN在预定时间段内返回到PCF,则PCF重新选择相同的PDSN以主持数据会话。 在另一个实施例中,在初始选择PDSN以主持数据会话之后,将PDSN的EP地址发送给MN,然后MN将PDSN的IP地址传递到MN漫游的任何后续PCF。 可以使用PDSN区域ID来代替填充IP地址。
    • 33. 发明授权
    • Method and apparatus for increased internet protocol (IP) headers compression performance by reporting cause of missing packets
    • 通过报告丢失数据包的原因,增加因特网协议(IP)报头压缩性能的方法和装置
    • US08619592B2
    • 2013-12-31
    • US10458328
    • 2003-06-11
    • Ghyslain PelletierLila Madour
    • Ghyslain PelletierLila Madour
    • H04J1/16
    • H04L29/06H04L69/04H04L69/08H04L69/16H04L69/161H04L69/22H04L69/324H04L69/326H04L69/40H04W28/06H04W36/0033H04W80/00
    • A decompressor, a compressor and methods in an Internet Protocol (IP) network for reporting cause of missing packets. A cause of unsuccessful reception or sending of a compressed packet addressed is reported to a compressor/decompressor node. The compressor/decompressor node decides or predicts if a decompression context associated with the decompressor is invalidated by analyzing the cause of the unsuccessful reception and, optionally, analyzing a re-initialization agreement between the compressor and the decompressor. In an optional embodiment of the present invention, the compressor/decompressor node use the decision or prediction to exchange information to reinitialize the decompression context associated with the decompressor. In a preferable embodiment of the present invention, the detection of the unsuccessful sending or reception is performed at a Medium Access (MAC) layer associated with the compressor/decompressor node.
    • 解压缩器,压缩器和互联网协议(IP)网络中的方法,用于报告丢失数据包的原因。 向压缩器/解压缩器节点报告接收失败或发送压缩分组的原因。 压缩器/解压缩器节点通过分析不成功接收的原因并且可选地分析压缩器和解压缩器之间的重新初始化协议来决定或预测与解压缩器相关联的解压缩上下文是否失效。 在本发明的可选实施例中,压缩器/解压缩器节点使用决定或预测来交换信息以重新初始化与解压缩器相关联的解压缩上下文。 在本发明的优选实施例中,在与压缩器/解压缩器节点相关联的介质访问(MAC)层处执行不成功发送或接收的检测。
    • 35. 发明授权
    • Optimized packet-resource management
    • 优化的数据包资源管理
    • US07630354B2
    • 2009-12-08
    • US11124238
    • 2005-05-09
    • Lila MadourKarim Shafik
    • Lila MadourKarim Shafik
    • H04L12/64
    • H04W76/32Y02D70/1224
    • A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.
    • 一种当移动站(MS)在休眠分组数据会话中执行掉电时通过释放悬挂分组数据连接来优化分组资源的使用的系统和方法。 基站控制器(BSC)向移动交换中心(MSC)发送消息,指示MS已断电。 MSC确定分组数据会话是休眠的,并且在0级无连接事务中向BSC发送指令以释放与分组数据会话相关联的网络资源。 BSC然后向分组控制功能(PCF)发送指令以拆除相关联的资源,并且分组数据连接被分组数据服务节点(PDSN)释放,以响应PCF的资源的分解 。
    • 36. 发明授权
    • Seamless handoff for multimedia services
    • 无缝切换多媒体业务
    • US07551585B2
    • 2009-06-23
    • US11238958
    • 2005-09-30
    • George FotiLila Madour
    • George FotiLila Madour
    • H04W4/00
    • H04L65/4061H04L65/1016H04L65/80H04L67/14H04W36/0033H04W76/25H04W76/30
    • A method and Policy Decision Function node are provided for maintaining a multimedia session in an alive state for a mobile station following a release of a network attachment resulting from a handoff from a first Packet Data Node to a second Packet Data Node followed by a dormancy state of the mobile station. If both Packet Data Nodes are comprised into a same MultiMedia Domain, the Policy Decision Function informs an Application Function of the MultiMedia Domain that the multimedia session shall be maintained. Otherwise, if the two Packet Data Nodes are comprised into distinct MultiMedia Domains, a first Policy Decision Function, in addition to informing a first Application Function that the multimedia session shall be maintained, also fetches a context of the multimedia session. Further, the first Policy Decision Function transfers the context of the multimedia session to the first Packet Data Node, which in turn sends the context of the multimedia session to the second Packet Data Node. Subsequent to reactivation of the mobile station, a second Policy Decision Function transfers the context of the multimedia session from the second Packet Data Node to a second Application Function in a second MultiMedia Domain.
    • 提供了一种方法和策略决策功能节点,用于在由从第一分组数据节点切换到第二分组数据节点之后休眠状态的转换产生的网络附件的释放之后,为移动台维持处于活动状态的多媒体会话 的移动台。 如果两个分组数据节点都包含在相同的多媒体域中,则策略决策功能通知多媒体域的应用功能将保持多媒体会话。 否则,如果两个分组数据节点被包括在不同的多媒体域中,除了通知第一应用功能之外,第一策略决策功能还应该保存多媒体会话的上下文。 此外,第一策略决策功能将多媒体会话的上下文传送到第一分组数据节点,分组数据节点又将多媒体会话的上下文发送到第二分组数据节点。 在移动台重新激活之后,第二策略决策功能将多媒体会话的上下文从第二分组数据节点传送到第二多媒体域中的第二应用功能。
    • 38. 发明申请
    • Per flow quality of service (QoS) enforcement for downlink data traffic
    • 针对下行链路数据流量的每流服务质量(QoS)强制执行
    • US20060045128A1
    • 2006-03-02
    • US11068335
    • 2005-03-01
    • Lila Madour
    • Lila Madour
    • H04Q7/24H04L12/56
    • H04L47/10H04L47/14H04L47/2416H04L47/2433H04L47/2441H04L2212/00H04W28/16H04W80/00
    • Methods, and Packet Data Service Node (PDSN) and a Base Station Controller (BSC) of a Code-Division Multiple Access 2000 (CDMA2000) network for exchanging Generic Routing Encapsulation (GRE) frames that contain downlink IP packets, wherein the frames also contain an identity of the IP flows on which they are to be mapped. The PDSN receives IP data packets destined to an IP address, identifies an IP flow on which the IP packets are to be mapped, encapsulates the IP data packets in GRE frames, and adds to each one of the GRE frames the IP flow Id on which the IP packets are to be mapped. The BSC receives GRE frames, identifies the identity of the IP flow in the GRE frames, determines the Quality of Service (QoS) associated with the identified IP flow, and acts to enforce the determined QoS for the identified IP flow.
    • 方法和分组数据服务节点(PDSN)和用于交换包含下行链路IP分组的通用路由封装(GRE)帧的码分多址2000(CDMA2000)网络的基站控制器(BSC),其中帧还包含 要映射的IP流的身份。 PDSN接收目的地址为IP地址的IP数据报文,标识要在其上映射IP报文的IP流,将IP数据报文封装在GRE帧中,并将IP流ID添加到每个GRE帧, IP数据包将被映射。 BSC接收GRE帧,识别GRE帧中的IP流的标识,确定与所识别的IP流相关联的服务质量(QoS),并且为所识别的IP流强制确定的QoS。