公开(公告)号：EP1238546A4

公开(公告)日：2003-05-02

申请号：EP00978640

申请日：2000-11-14

Applicant: MOTOROLA INC

Inventor： JAKOBSEN KEN ,  AVERBUCH ROD ,  HUGHES JOHN ,  CRISLER KENNETH JAMES ,  ROMANO GUY GEORGE

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04W8/00

CPC classification number: H04W8/00

Abstract: A cellular communications system including at least one base station (358), mobile stations (372, 374) addressable using IP addresses within a cell (350), and a controller (300) adapted to receive a context activation request from the mobile (374) to assign a static IP address previously assigned to the mobile when it was outside of the cell (350) and to assign the static IP address if the second controller (200) associated with the location where the mobile was previously registered with the static IP address has not already reassigned it, thus enabling roaming of the mobile between cellular systems under control of different Software and Measurement Infrastructures.

公开(公告)号：WO03001724A3

公开(公告)日：2003-08-28

申请号：PCT/EP0207004

申请日：2002-06-21

Applicant: MOTOROLA INC ,  HUGHES JOHN ,  BRUNT STEPHEN MARK ,  KADIR TIMOR

Inventor： HUGHES JOHN ,  BRUNT STEPHEN MARK ,  KADIR TIMOR

IPC: H04L1/00 ,  H04L1/18

CPC classification number: H04L1/1809 ,  H04L2001/0092

Abstract: A proxy server (136) for a multimedia communication system (100), includes a receiver (240) receiving a multiplexed information stream transmitted from a source communication unit (402, 406) to a destination communication unit (406, 402); and a processor for de-multiplexing the received multiplexed information stream and extracting non-real-time data from the multiplexed information stream. The proxy server (136) further includes error detection means, operbly coupled to a transmitter and a memory element, for determining whether an error exists in the extracted non-real-time data. if an error is detected, then a non-real-time data re-transmission request is transmitted to the source communication unit. If an error is not detected then a copy of the extracted non-real-time data is stored in said memory element. A method (400, 500) for delivering a muliplexed information stream, a communication system and a storage medium are also provided. The multiplexed packed is forwarded immediately to the receiving node as well as being processed to see if there are any errors in the non-real time streams. This ensures non-real-time multiplexed multimedia streams are communicated with minimum delay in an end-to end communication link.

Abstract translation: 一种用于多媒体通信系统（100）的代理服务器（136），包括：接收器（240），接收从源通信单元（402,406）发送到目的地通信单元（406,402）的多路复用信息流; 以及处理器，用于解复用所接收的复用信息流并从复用信息流中提取非实时数据。 代理服务器（136）还包括错误检测装置，其可操作地耦合到发射机和存储器元件，用于确定提取的非实时数据中是否存在错误。 如果检测到错误，则将非实时数据重传请求发送到源通信单元。 如果未检测到错误，则将所提取的非实时数据的副本存储在所述存储器元件中。 还提供了用于传递复合信息流的方法（400,500），通信系统和存储介质。 复用打包立即转发到接收节点，并进行处理以查看非实时流中是否有错误。 这确保非实时多路复用多媒体流在端对端通信链路中以最小延迟进行通信。

公开(公告)号：AT315299T

公开(公告)日：2006-02-15

申请号：AT00978640

申请日：2000-11-14

Applicant: MOTOROLA INC

Inventor： JAKOBSEN KEN ,  AVERBUCH ROD ,  HUGHES JOHN ,  CRISLER KENNETH JAMES ,  ROMANO GUY GEORGE

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04W8/00

Abstract: A cellular radio communications system comprises: at least one base station for broadcasting radio signals to mobile stations within a cell; a mobile station addressable using IP addresses; and a first controller in the cell of the cellular radio communications system, the first controller being adapted: (i) to receive a request from the mobile station that the cellular radio communication system assign to the mobile station the static IP address previously assigned to the mobile station outside of the cell; (ii) in response to the request from the mobile station, to check with a second controller associated with the location where the mobile station was previously registered that the static IP address has not been assigned to another mobile station; and (iii) to assign the static IP address previously assigned to the mobile station, outside of the cell, to the mobile station for use in the cell, if the static IP address has not been assigned to another mobile station. Alternatively, the first controller may perform the check for availability of the static IP address with a controller associated with the location where the static IP address is registered. The invention also comprises methods of mobile station registration in cellular radio communication systems. The invention enables roaming by a mobile station between cellular systems which are under the control of different Software and Measurement Infrastructures. Mobile stations may be adapted to check one or more timers prior to making the static IP address request.

公开(公告)号：HK1054146A1

公开(公告)日：2003-11-14

申请号：HK03106258

申请日：2003-09-02

Applicant: MOTOROLA INC

Inventor： JAKOBSEN KEN ,  AVERBUCH ROD ,  HUGHES JOHN ,  CRISLER KENNETH JAMES ,  ROMANO GUY GEORGE

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04W8/00 ,  H04Q

Abstract: A cellular radio communications system comprises: at least one base station for broadcasting radio signals to mobile stations within a cell; a mobile station addressable using IP addresses; and a first controller in the cell of the cellular radio communications system, the first controller being adapted: (i) to receive a request from the mobile station that the cellular radio communication system assign to the mobile station the static IP address previously assigned to the mobile station outside of the cell; (ii) in response to the request from the mobile station, to check with a second controller associated with the location where the mobile station was previously registered that the static IP address has not been assigned to another mobile station; and (iii) to assign the static IP address previously assigned to the mobile station, outside of the cell, to the mobile station for use in the cell, if the static IP address has not been assigned to another mobile station. Alternatively, the first controller may perform the check for availability of the static IP address with a controller associated with the location where the static IP address is registered. The invention also comprises methods of mobile station registration in cellular radio communication systems. The invention enables roaming by a mobile station between cellular systems which are under the control of different Software and Measurement Infrastructures. Mobile stations may be adapted to check one or more timers prior to making the static IP address request.

公开(公告)号：AU2002325844A1

公开(公告)日：2003-01-08

申请号：AU2002325844

申请日：2002-06-21

Applicant: MOTOROLA INC

Inventor： BRUNT STEPHEN MARK ,  KADIR TIMOR ,  HUGHES JOHN

IPC: H04L1/00 ,  H04L1/18

公开(公告)号：GB2376857A

公开(公告)日：2002-12-24

申请号：GB0115309

申请日：2001-06-22

Applicant: MOTOROLA INC

Inventor： HUGHES JOHN ,  BRUNT STEPHEN MARK ,  KADIR TIMOR

IPC: H04L1/00 ,  H04L1/18 ,  H04L29/06 ,  H04L1/16

Abstract: A proxy server 136 for a multimedia communication system acts as an intermediary between a source communication unit 402 and a destination communication unit 406. A multiplexed stream 410 transmitted from the source to the destination is received by the proxy sever, demultiplexed and the non-real-time data extracted. The extracted non-real-time data is error checked and, if required, a retransmission request 420 is sent to the source unit, otherwise a copy of the non-real-time data is stored for possible retransmission to the destination. To minimise the delay in the end-to-end link the multiplexed stream is also forwarded immediately by the proxy server to the destination node 412. If the destination receives non-real-time data in error, a repeat request 430 is made to the proxy server rather than the source unit. Applications include cellular communication systems such as UMTS and GPRS.

公开(公告)号：DE60025396T2

公开(公告)日：2006-07-06

申请号：DE60025396

申请日：2000-11-14

Applicant: MOTOROLA INC

Inventor： JAKOBSEN KEN ,  AVERBUCH ROD ,  HUGHES JOHN ,  CRISLER JAMES ,  ROMANO GEORGE

IPC: H04L12/56 ,  H04L12/28 ,  H04L12/46 ,  H04W8/00

Abstract: A cellular radio communications system comprises: at least one base station for broadcasting radio signals to mobile stations within a cell; a mobile station addressable using IP addresses; and a first controller in the cell of the cellular radio communications system, the first controller being adapted: (i) to receive a request from the mobile station that the cellular radio communication system assign to the mobile station the static IP address previously assigned to the mobile station outside of the cell; (ii) in response to the request from the mobile station, to check with a second controller associated with the location where the mobile station was previously registered that the static IP address has not been assigned to another mobile station; and (iii) to assign the static IP address previously assigned to the mobile station, outside of the cell, to the mobile station for use in the cell, if the static IP address has not been assigned to another mobile station. Alternatively, the first controller may perform the check for availability of the static IP address with a controller associated with the location where the static IP address is registered. The invention also comprises methods of mobile station registration in cellular radio communication systems. The invention enables roaming by a mobile station between cellular systems which are under the control of different Software and Measurement Infrastructures. Mobile stations may be adapted to check one or more timers prior to making the static IP address request.

公开(公告)号：GB2376857B

公开(公告)日：2003-07-23

申请号：GB0115309

申请日：2001-06-22

Applicant: MOTOROLA INC

Inventor： HUGHES JOHN ,  BRUNT STEPHEN MARK ,  KADIR TIMOR

IPC: H04L1/00 ,  H04L1/18 ,  H04L29/06 ,  H04L1/16

公开(公告)号：ES2256065T3

公开(公告)日：2006-07-16

申请号：ES00978640

申请日：2000-11-14

Applicant: MOTOROLA INC

Inventor： JAKOBSEN KEN ,  AVERBUCH ROD ,  HUGHES JOHN ,  CRISLER KENNETH JAMES ,  ROMANO GUY GEORGE

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04W8/00

Abstract: Un sistema de comunicaciones por radio celular que tiene al menos una primera y una segunda red de radio que tienen diferentes zonas de cobertura geométrica, incluyendo el sistema de comunicaciones radio celular: una estación móvil (374) direccionable usando direcciones IP de Protocolo de Internet, estando adaptada la estación móvil para itinerar entre la primera y segunda red de radio, incluyendo la primera red una red doméstica de la estación móvil y la segunda red incluyendo una red extranjera de la estación móvil; un primer controlador (200) asociado con la primera red; y caracterizado el sistema por un segundo controlador (300) asociado con la segunda red, estando adaptado el segundo controlador (300) cuando la estación móvil (374) está en itinerancia de la primera red a la segunda red: (i) para recibir una petición de activación de contexto de la estación móvil (374) para que el sistema de comunicaciones radio celular asigne a la estación móvil (374) una dirección IP estática previamente asignada a la estación móvil (374) por el primer controlador (200); (ii) en respuesta a la petición de la estación móvil (374), comprobar con el primer controlador (200) que la dirección IP estática no ha sido asignada a otra estación móvil; y (iii) para asignar la dirección IP estática previamente asignada a la estación móvil (374) por el primer controlador (200) a la estación móvil (374) para uso en la segunda red, si la dirección IP estática no ha sido asignada a otra estación móvil.

公开(公告)号：DE60025396D1

公开(公告)日：2006-03-30

申请号：DE60025396

申请日：2000-11-14

Applicant: MOTOROLA INC

Inventor： JAKOBSEN KEN ,  AVERBUCH ROD ,  HUGHES JOHN ,  CRISLER JAMES ,  ROMANO GEORGE

IPC: H04L12/56 ,  H04L12/28 ,  H04L12/46 ,  H04W8/00

Abstract: A cellular radio communications system comprises: at least one base station for broadcasting radio signals to mobile stations within a cell; a mobile station addressable using IP addresses; and a first controller in the cell of the cellular radio communications system, the first controller being adapted: (i) to receive a request from the mobile station that the cellular radio communication system assign to the mobile station the static IP address previously assigned to the mobile station outside of the cell; (ii) in response to the request from the mobile station, to check with a second controller associated with the location where the mobile station was previously registered that the static IP address has not been assigned to another mobile station; and (iii) to assign the static IP address previously assigned to the mobile station, outside of the cell, to the mobile station for use in the cell, if the static IP address has not been assigned to another mobile station. Alternatively, the first controller may perform the check for availability of the static IP address with a controller associated with the location where the static IP address is registered. The invention also comprises methods of mobile station registration in cellular radio communication systems. The invention enables roaming by a mobile station between cellular systems which are under the control of different Software and Measurement Infrastructures. Mobile stations may be adapted to check one or more timers prior to making the static IP address request.