公开(公告)号：WO2009021617A1

公开(公告)日：2009-02-19

申请号：PCT/EP2008/006181

申请日：2008-07-21

Applicant: LUCENT TECHNOLOGIES INC. ,  ALCATEL LUCENT ,  PALAT, Sudeep, Kumar ,  CASATI, Alessio ,  GODIN, Philippe

Inventor： PALAT, Sudeep, Kumar ,  CASATI, Alessio ,  GODIN, Philippe

IPC: H04Q7/38

CPC classification number: H04W36/02 ,  H04W92/20

Abstract: In handover in a wireless telecommunications network, dummy packets, or data packets with an indicator bit, are transmitted from a gateway node MME/SAE GW (4) to a source node eNB (2) when there is no more data being sent to the source node (2). The source node (2) forwards them to a target node eNB (3). When the target node eNB (3) detects the indictors, it knows that there is no more data awaiting to be received from the source node (2) and it can continue with data sent from the SAE GW to it instead.

Abstract translation: 在无线电信网络中的切换中，当没有更多的数据被发送到网络节点MME / SAE GW（4）时，具有指示符位的虚拟分组或数据分组被发送到源节点eNB（2） 源节点（2）。 源节点（2）将它们转发到目标节点eNB（3）。 当目标节点eNB（3）检测到指示符时，它知道从源节点（2）不再有等待接收的数据，并且可以继续从SAE GW向其发送的数据。

公开(公告)号：WO2008125329A1

公开(公告)日：2008-10-23

申请号：PCT/EP2008/002968

申请日：2008-04-08

Applicant: LUCENT TECHNOLOGIES INC. ,  ALCATEL LUCENT ,  BENNETT, Andrew ,  PALAT, Sudeep Kumar ,  TATESH, Said ,  CASATI, Alessio ,  DREVON, Nicolas ,  THIEBAUT, Laurent

Inventor： BENNETT, Andrew ,  PALAT, Sudeep Kumar ,  TATESH, Said ,  CASATI, Alessio ,  DREVON, Nicolas ,  THIEBAUT, Laurent

IPC: H04Q7/38 ,  H04L29/06 ,  H04L12/56 ,  H04L12/28

CPC classification number: H04W36/0022

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2008040412A1

公开(公告)日：2008-04-10

申请号：PCT/EP2007/006995

申请日：2007-08-06

Applicant: LUCENT TECHNOLOGIES INC. ,  CASATI, Alessio ,  PALAT, Sudeep, Kumar ,  TATESH, Said

Inventor： CASATI, Alessio ,  PALAT, Sudeep, Kumar ,  TATESH, Said

IPC: H04L29/06 ,  H04Q7/38

CPC classification number: H04W12/08 ,  H04L63/0428 ,  H04L63/068 ,  H04W12/02 ,  H04W12/04

Abstract: An example of the present invention is a method of transmitting encrypted user data to a mobile terminal in a wireless telecommunications network. The method comprises sending to the mobile terminal a data packet. The data packet comprises both an identifier of encryption information to used in recovering encrypted user data, and user data encrypted using said encryption information.

Abstract translation: 本发明的示例是将加密的用户数据发送到无线电信网络中的移动终端的方法。 该方法包括向移动终端发送数据分组。 数据包包括用于恢复加密的用户数据的加密信息的标识符和使用所述加密信息加密的用户数据。

公开(公告)号：WO2007092807A2

公开(公告)日：2007-08-16

申请号：PCT/US2007/061600

申请日：2007-02-05

Applicant: LUCENT TECHNOLOGIES INC. ,  CASATI, Alessio ,  TATESH, Said ,  PALAT, Sudeep

Inventor： CASATI, Alessio ,  TATESH, Said ,  PALAT, Sudeep

IPC: H04Q7/38

CPC classification number: H04W60/04 ,  H04W68/00 ,  H04W88/06 ,  H04W92/02

Abstract: The present invention provides a method of operating an idle mobile unit that is capable of communicating with first and second wireless communication systems. One embodiment of the method includes providing a location update message in response to the idle mobile unit transitioning from a first tracking area associated with the second wireless communication system to a second tracking area associated with the second wireless communication system. The first and second wireless communication systems are capable of paging the idle mobile unit following the location update message.

Abstract translation: 本发明提供了一种操作能够与第一和第二无线通信系统进行通信的空闲移动单元的方法。 该方法的一个实施例包括响应于空闲移动单元从与第二无线通信系统相关联的第一跟踪区域转变到与第二无线通信系统相关联的第二跟踪区域，提供位置更新消息。 第一和第二无线通信系统能够在位置更新消息之后对空闲移动单元进行寻呼。

公开(公告)号：WO2007092804A2

公开(公告)日：2007-08-16

申请号：PCT/US2007/061596

申请日：2007-02-05

Applicant: LUCENT TECHNOLOGIES INC. ,  PALAT, Sudeep ,  CASATI, Alessio ,  TATESH, Said

Inventor： PALAT, Sudeep ,  CASATI, Alessio ,  TATESH, Said

IPC: H04W28/18 ,  H04W36/14 ,  H04W76/02

CPC classification number: H04W76/22 ,  H04W36/14

Abstract: The present invention provides methods involving at least one mobile unit configured to receive wireless connectivity using first and second wireless communication systems that operate according to first and second radio interface technologies, respectively. The first and second radio interface technologies are different. The method may include determining, in response to the mobile unit handing off from the first to the second wireless communication system, session establishment information for the second wireless communication system based on session establishment information associated with the first wireless communication system.

Abstract translation: 本发明提供了涉及至少一个移动单元的方法，其被配置为使用分别根据第一和第二无线电接口技术操作的第一和第二无线通信系统来接收无线连接。 第一和第二无线电接口技术是不同的。 该方法可以包括基于与第一无线通信系统相关联的会话建立信息，响应于移动单元从第一无线通信系统向第二无线通信系统切换用于第二无线通信系统的会话建立信息。

公开(公告)号：EP2055041A1

公开(公告)日：2009-05-06

申请号：EP07811100.2

申请日：2007-08-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： CASATI, Alessio ,  CHENG, Fang-Chen ,  PALAT, Sudeep, Kumar ,  TATESH, Said

IPC: H04L12/18

CPC classification number: H04W72/005 ,  H04L12/1881 ,  H04L12/189 ,  H04W56/00 ,  H04W56/001

Abstract: A communication system includes a decentralized, flat architecture where a plurality of base nodes each include controller capabilities so that a centralized base node such as a radio network controller is not required. At least one of the base nodes acts as an anchor node. The anchor node associates a time stamp with at least one packet and provides that to the plurality of base nodes. In one example, a multicast approach is used by a router device for distributing the packet and the associated time stamp to the plurality of base nodes. Each base node controls a timing of a transmission of the at least one packet over a wireless interface responsive to the associated time stamp.

公开(公告)号：EP2050294A1

公开(公告)日：2009-04-22

申请号：EP07723495.3

申请日：2007-03-20

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： CASATI, Alessio ,  BENNETT, Andrew ,  PALAT, Sudeep, Kumar ,  TATESH, Said

IPC: H04Q7/38

CPC classification number: H04W36/0022

Abstract: A method is provided of transferring a call connection with a mobile terminal from a first network to a second network. The first network is capable of handling both circuit-switched and packet-switched modes of connection. The second network is capable of handling one of the packet-switched or circuit-switched modes of connection but not both. The terminal is capable of both packet-switched and circuit- switched call modes of connection. The method comprises the first network: identifying the location of the mobile terminal with respect to at least one of the networks, identifying the mobile terminal as being in a mode of connection not usable in the second network, instructing the mobile terminal to transfer the call connection to the other mode of connection, and transferring the call connection to the second network.

公开(公告)号：EP2119292A2

公开(公告)日：2009-11-18

申请号：EP07867871.1

申请日：2007-12-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： CASATI, Alessio ,  DEMAREZ, Christophe ,  PALAT, Sudeep, Kumar ,  TATESH, Said

IPC: H04Q7/38

CPC classification number: H04W36/0022

Abstract: The present invention provides a method applicable to a mobile unit operating using Long Term Evolution (LTE) technology and having a single radio interface. The method controls a handover from a Voice over Internet Protocol (VoIP) call to a Circuit Switched (CS) call. The method comprises providing a CS call control message in a packet switched message, and routing the CS call control messages to a Mobile Switching Centre (MSC). Thereafter, a handover of the VoIP call to the CS call is initiated in response to receiving the call control message.

公开(公告)号：EP1999985A1

公开(公告)日：2008-12-10

申请号：EP07753155.6

申请日：2007-03-14

Applicant: Lucent Technologies Inc.

Inventor： CASATI, Alessio ,  PALAT, Sundeep, Kumar ,  TATESH, Said

IPC: H04Q7/38

CPC classification number: H04W60/04 ,  H04W24/02

Abstract: The present invention provides a method for assigning a tracking area to a mobile unit based upon a plurality of location update frequencies. The method may include determining, at the mobile unit, a tracking area associated with the mobile unit based on a plurality of location update frequencies.

公开(公告)号：EP1999984A1

公开(公告)日：2008-12-10

申请号：EP07753154.9

申请日：2007-03-14

Applicant: Lucent Technologies Inc.

Inventor： CASATI, Alessio ,  PALAT, Sudeep, Kumar ,  TATESH, Said

IPC: H04Q7/38

CPC classification number: H04W60/04 ,  H04W24/02 ,  H04W88/06

Abstract: The present invention provides a method for assigning a mobile unit to a tracking area based upon a location update frequency. The method includes selecting one of a technology-specific tracking area and a shared tracking area based on a location update frequency associated with a mobile unit.