公开(公告)号：EP1836787A4

公开(公告)日：2009-11-11

申请号：EP06717611

申请日：2006-01-05

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  HARRISON ROBERT M

IPC: H04B7/212 ,  H04W4/06 ,  H04W56/00

CPC classification number: H04L29/06027 ,  H04L12/1881 ,  H04L12/189 ,  H04L65/4076 ,  H04L67/32 ,  H04W56/00 ,  H04W72/005

公开(公告)号：EP1712023A4

公开(公告)日：2009-07-08

申请号：EP04815267

申请日：2004-12-22

Applicant: MOTOROLA INC

Inventor： PADMAJA PUTCHA ,  BURBIDGE RICHARD C ,  CAI ZHIJUN ,  STEWART KENNETH A

IPC: H04J1/00 ,  H04W4/00 ,  H04W4/06 ,  H04W24/00 ,  H04W28/18 ,  H04W68/00

CPC classification number: H04W72/005 ,  H04W48/16

Abstract: The present invention provides a method for receiving broadcast data in a system where broadcast data is transmitted on a plurality of frequencies. A user device monitors (302) a first frequency (108) for broadcast data to be transmitted on the first frequency. The device receives on the first frequency a notification of a broadcast data session which is to be sent on a second frequency (114) that is different from the first frequency. The device then determines a configuration associated with the second frequency and in accordance with receiving the broadcast data session and then configures (310) to receive the broadcast data session in accordance with the determined configuration. After receiving the broadcast data session, the device returns to monitoring the first frequency.

公开(公告)号：EP1807975A4

公开(公告)日：2009-04-22

申请号：EP05858536

申请日：2005-04-29

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  CHEN BONNIE

IPC: H04L12/18 ,  H04L12/26

CPC classification number: H04L12/18

Abstract: A Multimedia Broadcast/Multicast Service (MBMS) application server (122) in a packet data communication system (100) produces multiple access control parameters that at least partially identify a storage location of MBMS data and that define when a user equipment may access the stored MBMS data. The multiple access control parameters are then distributed to user equipment (UE) (102) subscribed to the MBMS service. When a subscribed UE fails to receive, or erroneously receives, MBMS data associated with the MBMS service, the subscribed UE uses the distributed access control parameters to determine when and where to access the stored MBMS data.

公开(公告)号：CA2501191C

公开(公告)日：2015-05-12

申请号：CA2501191

申请日：2004-08-06

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  CHEN BONNIE

IPC: H04W4/06 ,  H04H20/72 ,  H04L12/18 ,  H04L29/06 ,  H04W76/02 ,  H04W88/18

Abstract: A communication system (100) that includes a Multimedia Broadcast Multicast Service (MBMS) service provides re-broadcasts of an event to subscribers (102-104) to the MBMS service. An infrastructure (124) included in the communication system and comprising a server (118) coupled to a RAN controller (114) via a support node (116) receives a first set of MBMS data from an MBMS content provider (127) and conveys the first set of MBMS data along with an associated first Session Description to a subscribed mobile station (102-104). The infrastructure then receives a second set of MBMS data from the MBMS content provider, wherein the second set of MBMS data comprises a re-conveyance of the first set of MBMS data, and conveys an MBMS notification along with an associated second Session Description to the mobile station. The mobile station may then determine whether to receive the re-conveyance based on the first and second Session Descriptions.

公开(公告)号：DE60319206D1

公开(公告)日：2008-04-03

申请号：DE60319206

申请日：2003-05-09

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  AL-BAKRI BAN ,  BURBIDGE RICHARD

IPC: H04L12/18 ,  H04L12/56 ,  H04W4/06 ,  H04W28/08 ,  H04W28/12

Abstract: A communication system (100) determines whether to establish a point-to-multipoint communication or a point-to-point communication for conveyance of Multimedia Broadcast Multicast Service (MBMS) data based on a number of mobile stations (MSs) (102-104), both idle mode and maintaining an active connection, serviced by the system and subscribed to an MBMS service. The system broadcasts (306) a control message that includes an access probability factor. In order to avoid overloading the system with responses to the control message, MSs maintaining an active connection ignore (506, 508) the control message while idle mode MSs determine (506, 512) whether to respond based on the access probability factor. The system compares (310) a number of received responses to a threshold and determines whether to establish a point-to-multipoint communication (312) or a point-to-point communication (322) based on the comparison. The system also adjusts (314, 330) the access probability factor based on the number of responses.

公开(公告)号：BRPI0406398A

公开(公告)日：2005-08-09

申请号：BRPI0406398

申请日：2004-10-05

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  CHEN BONNIE

IPC: H04H20/00 ,  H04L12/18 ,  H04L29/12 ,  H04N7/173 ,  H04W4/06 ,  H04W4/08 ,  H04W8/26

Abstract: A Multimedia Broadcast/Multicast Service (MBMS) server in a packet data communication system generates and assigns Temporary Mobile Group Identities (TMGIs) to MBMS services, thereby serving as a central repository for the TMGIs. In response to receiving a request to participate in an MBMS service, the MBMS server generates a TMGI. The MBMS server assigns the TMGI to the MBMS service and stores the TMGI in association with information relating to the MBMS service to produce a stored TMGI. The MBMS server further conveys the TMGI to a source of the received request, thereby providing for a distribution of the TMGI to mobile stations subscribed to the MBMS service. The subscribed mobile stations may then use the TMGI to receive data packets associated with the MBMS service.

公开(公告)号：BRPI0618915A2

公开(公告)日：2011-09-13

申请号：BRPI0618915

申请日：2006-11-10

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  AHMED MANSOOR ,  HARRISON ROBERT M

IPC: H04B7/00 ,  H04W4/06 ,  H04W48/12

公开(公告)号：BRPI0617400A2

公开(公告)日：2011-07-26

申请号：BRPI0617400

申请日：2006-10-10

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  AHMED MANSOOR ,  HARRISON ROBERT M

IPC: H04H20/00 ,  H04L12/56 ,  H04W4/02 ,  H04W4/06 ,  H04W48/08

Abstract: A method and apparatus for neighbor assisted combining for localized multicast services. User equipment is sent a signal indicating the relationship between cells with respect to serving cells transmitting a common multicast transmission. At least a portion of the common multicast transmission is transmitted on the same resource on each serving cell. A pilot signal is transmitted on each serving cell, the pilot signal related to the at least a portion of the common multicast transmission on each serving cell. An interfering signal and a related pilot are transmitted on at least one different cell from the serving cells.

公开(公告)号：BRPI0617367A2

公开(公告)日：2011-07-26

申请号：BRPI0617367

申请日：2006-10-10

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN ,  AHMED MANSOOR ,  HARRISON ROBERT M

IPC: H04B7/005

Abstract: A method and apparatus for neighbor assisted combining for localized multicast services. Cells are determined in which user equipment resides that desire a common multicast service. At least one serving cell for transmitting the common multicast service is selected based on the determination. At least one extended serving cell is selected from at least one serving cell neighbor cell which does not have user equipment that desires the common multicast service, the extended serving cell influencing transmissions on the serving cell. The common multicast service is transmitted on the selected at least one serving cell.

公开(公告)号：BRPI0707406A2

公开(公告)日：2011-05-03

申请号：BRPI0707406

申请日：2007-01-27

Applicant: MOTOROLA INC

Inventor： CAI ZHIJUN

IPC: H04W4/06

Abstract: A distributed architecture and method for MBMS delivery is disclosed. The various embodiments enable selection combining and soft combining by UEs for MBMS transmissions. An MBMS service notification (509) is sent to all E-Nodes (503). The E-Nodes proceed to request counting (511) from the UEs (501). A transmission request (513) is then sent to the anchor MBMS-Transmission Control Function (TCF) (505) from the E-Nodes (503). The anchor MBMS-TCF (505) generates resource allocation and scheduling profiles and segmentation and reassembly (SAR) profiles for the E-Nodes and sends the profiles (515) to the E-Nodes. The E-Nodes (503) use the profiles for resource allocation and configuration (517) and transmit MBMS data (519) in accordance with the profiles. The anchor MBMS-TCF (505) may then coordinate.