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    • 1. 发明申请
    • HANDOVER FROM E-UTRAN TO UTRAN/GERAN CS
    • 从E-UTRAN切换到UTRAN / GERAN CS
    • WO2008125329A1
    • 2008-10-23
    • PCT/EP2008/002968
    • 2008-04-08
    • LUCENT TECHNOLOGIES INC.ALCATEL LUCENTBENNETT, AndrewPALAT, Sudeep KumarTATESH, SaidCASATI, AlessioDREVON, NicolasTHIEBAUT, Laurent
    • BENNETT, AndrewPALAT, Sudeep KumarTATESH, SaidCASATI, AlessioDREVON, NicolasTHIEBAUT, Laurent
    • H04Q7/38H04L29/06H04L12/56H04L12/28
    • H04W36/0022
    • The present invention relates to a method for a handover of a UE (User Equipment) currently engaged in a voice call. More particularly, the invention relates to a handover from 1) a packet based radio where Voice Service is provided via VoIP over the radio and is controlled via Session Initiation Protocol (SIP) based signalling (e.g. LTE, E-UTRAN or WIMAX radio) to 2) a radio access network where Voice Service can be only provided via circuit switched (CS) domain (a visited mobile switching centre (VMSC) is needed) such as legacy 3GPP UMTS Terrestrial Radio Access Network (UTRAN)/ GSM/Edge Radio Access Network (GERAN) coverage. A MSC-S entity acting as a Packet Core Control Node on a Packet Switched (PS) network and as an Anchor Visited Mobile Switching Centre (VMSC) for a handover to a Circuit Switched (CS) network on the CS domain side is proposed, the MSC-S preparing a new path with a remote UE-B and a CS domain handover towards a target legacy radio coverage before requesting a UE- A to execute the handover.
    • 本发明涉及一种当前正在进行语音通话的UE(用户设备)的切换方法。 更具体地,本发明涉及从1)基于分组的无线电的切换,其中通过无线电通过VoIP提供语音服务,并且通过基于会话发起协议(SIP)的信令(例如LTE,E-UTRAN或WIMAX无线电)来控制 2)无线​​接入网络,其中语音业务只能通过电路交换(CS)域(需要被访问的移动交换中心(VMSC))提供,例如传统的3GPP UMTS陆地无线电接入网(UTRAN)/ GSM /边缘无线接入 网络(GERAN)覆盖。 提出了在分组交换(PS)网络上作为分组核心控制节点的MSC-S实体以及用于在CS域侧切换到电路交换(CS)网络的锚定访问移动交换中心(VMSC) 在请求UE-A执行切换之前,MSC-S准备具有远程UE-B的新路径和朝向目标传统无线电覆盖的CS域切换。
    • 6. 发明申请
    • MESSAGE TRANSMISSION
    • 消息传输
    • WO2010076039A1
    • 2010-07-08
    • PCT/EP2009/009353
    • 2009-12-31
    • ALCATEL LUCENTDREVON, NicolasCASATI, Alessio
    • DREVON, NicolasCASATI, Alessio
    • H04L12/18
    • H04L12/1895H04L12/1868H04L12/1881H04L12/189
    • A method of transmitting a message to user equipment within a telecommunications network, a controller operable to transmit a message to user equipment within a telecommunications network, a base station and a computer program product are disclosed. The method comprises the steps of: receiving a message having message content to be transmitted to user equipment within a predefined geographical area of the telecommunications network; identifying at least one multicast IP address designated as being associated with base stations providing telecommunications coverage with user equipment within the predefined geographical area; and transmitting the message content within at least one multicast message, each multicast message using a corresponding one of the at least one multicast IP address, over an IP network to base stations providing telecommunications coverage within the predetermined geographical area for onward transmission to user equipment. In this way, each base station identified by the multicast IP address will simultaneously receive the message, rather than each individual base station needing to have its own dedicated message sent to each base station sequentially. This not only significantly speeds the time taken for identified base stations to receive the message, it also reduces the amount of traffic required since the message is transmitted in a multicast manner. Furthermore, only those base stations which are associated with the multicast IP address will act on the message, all other base stations may ignore it. This helps to ensure that the message is only relayed to user equipment in a particular geographical region, rather than being delivered to all user equipment supported by all base stations associated with a particular controller.
    • 公开了一种向电信网络内的用户设备发送消息的方法,用于向电信网络内的用户设备发送消息的控制器,基站和计算机程序产品。 该方法包括以下步骤:接收具有要发送到电信网络的预定义地理区域内的用户设备的消息内容的消息; 识别指定为与所述预定地理区域内的用户设备提供电信覆盖的基站相关联的至少一个多播IP地址; 以及使用所述至少一个多播IP地址中的对应的一个多播IP地址,通过IP网络将所述消息内容发送到在所述预定地理区域内提供电信覆盖的基站,以便向用户设备发送。 以这种方式,由多播IP地址标识的每个基站将同时接收该消息,而不是每个单独的基站需要将其自己的专用消息顺序发送到每个基站。 这不仅显着加快了识别的基站接收消息所花费的时间,而且还减少了以多播方式发送消息所需的业务量。 此外,只有与多播IP地址相关联的那些基站将作用于消息,所有其他基站可以忽略该消息。 这有助于确保消息仅被中继到特定地理区域中的用户设备,而不是被传送到与特定控制器相关联的所有基站支持的所有用户设备。