Receiving point-to-point and point-to-point multipoint multimedia broadcasts/multicast services

• US 20060229082A1
• Filed: 06/09/2006
• Published: 10/12/2006
• Est. Priority Date: 08/07/2002
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Terry, Stephen E.
• Granted Patent: US 7,180,885 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 88/18 Service support devices; Network management devices

Abstract

Receiving multimedia broadcasts/multicast services (MBMS) by a user equipment (UE) comprises when an MBMS service is transmitted as a point-to-point transmission, receiving information associated with the point-to-point transmission of a point-to-point MBMS service. Point-to-point MBMS segments of the point-to-point transmission are received over a dedicated traffic channel in response to the received point-to-point transmission information. When an MBMS service is transmitted as a point-to-multipoint transmission, receiving information associated with the point-to-multipoint transmission of a point-to-multipoint MBMS service. Point-to-multipoint MBMS segments of the point-to-multipoint transmission are received over secondary common control physical channels (S-CCPCHs) in response to the received point-to-multipoint transmission information. The S-CCPCHs originates from a plurality of cells and the transmission of the point-to-multipoint MBMS segments are not synchronized in time between the cells. The point-to-multipoint MBMS segments are reassembled.

Claims

1. A wideband code division multiple access (W-CDMA) user equipment (UE) for receiving multimedia broadcasts/multicast services (MBMS), the UE comprising:

an MBMS receiver configured to receive information associated with a point-to-point transmission of a point-to-point MBMS service, the received point-to-point transmission information including a point-to-point MBMS identity associated with the point-to-point MBMS service;

the MBMS receiver configured to receive point-to-point MBMS segments over a dedicated traffic channel of the point-to-point transmission in response to the received point-to-point transmission information;

the MBMS receiver configured to receive information associated with a point-to-multipoint transmission of a point-to-multipoint MBMS service, the received point-to-multipoint transmission information including a point-to-multipoint MBMS identity associated with the point-to-multipoint MBMS service;

the MBMS receiver configured to receive point-to-multipoint MBMS segments over secondary common control physical channels (S-CCPCHs) of the point-to-multipoint transmission in response to the received point-to-multipoint transmission information, the S-CCPCHs originating from a plurality of cells and the transmission of the point-to-multipoint MBMS segments are not synchronized in time between the cells;

an MBMS segment reassembly device configured to reassemble the point-to-multipoint MBMS segments.

2. The UE of claim 1 wherein segmentation information is received in-band with the point-to-multipoint segments and the MBMS reassembly device reassembles the point-to-multipoint segments is in response to the MBMS segments.

3. The UE of claim 1 wherein the MBMS receiver configured to receive segments of a same MBMS service when the MBMS service is transmitted in a first transmission time interval (TTI) as the point-to-point transmission and the same MBMS service is transmitted in a second TTI as the point-to-multipoint transmission.

4. A method for receiving multimedia broadcasts/multicast services (MBMS) by a wideband code division multiple access (W-CDMA) user equipment (UE), the method comprising:

when an MBMS service is transmitted as a point-to-point transmission;

receiving information associated with the point-to-point transmission of a point-to-point MBMS service, the received point-to-point transmission information including a point-to-point MBMS identity associated with the point-to-point MBMS service; and

receiving point-to-point MBMS segments of the point-to-point transmission over a dedicated traffic channel in response to the received point-to-point transmission information; and

when an MBMS service is transmitted as a point-to-multipoint transmission;

receiving information associated with the point-to-multipoint transmission of a point-to-multipoint MBMS service, the received point-to-multipoint transmission information including a point-to-multipoint MBMS identity associated with the point-to-multipoint MBMS service;

receiving point-to-multipoint MBMS segments of the point-to-multipoint transmission over secondary common control physical channels (S-CCPCHs) in response to the received point-to-multipoint transmission information, the S-CCPCHs originating from a plurality of cells and the transmission of the point-to-multipoint MBMS segments are not synchronized in time between the cells; and

reassembling the point-to-multipoint MBMS segments.

5. The method of claim 4 wherein segmentation information is transmitted in-band with the point-to-multipoint segments and the reassembling the point-to-multipoint segments is in response to the MBMS segments.

6. The method of claim 4 wherein a same MBMS service is transmitted in a first transmission time interval (TTI) as the point-to-point transmission and the same MBMS service is transmitted in a second TTI as the point-to-multipoint transmission.