Dedicated carrier configuration method and device and multimedia broadcast multicast service transmission method

• US 9,137,779 B2
• Filed: 04/24/2008
• Issued: 09/15/2015
• Est. Priority Date: 04/29/2007
• Status: Active Grant

• Current Assignee: Datang Mobile Communications Equipment Company Limited (China Information Communication Technology Group Co. Ltd.)
• Original Assignee: China Academy of Telecom Technology (China Information Communication Technology Group Co. Ltd.)
• Inventors: Wang, Xuelong, Ding, Yu, Mao, Lei, Ren, Shiyan
• Primary Examiner(s): Acolatse, Kodzovi
• Application Number:
  US12/598,130
• Publication Number:
  US 20100284319A1
• Time in Patent Office: 2,700 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 7/08 at the receiving station
• CPC Class Codes: H04J 3/00 Time-division multiplex systems H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q
• CPC Class Codes: H04W 40/00 Communication routing or communication path finding
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention discloses a MBMS dedicated carrier configuration method, including: at least one of MBMS dedicated carriers in a cell is chose and assigned MBMS control information of all MBMS dedicated carriers and MBMS system information; and frequency information and scrambling code group ID information of at least one MBMS dedicated carriers assigned bundling information is assigned to conventional service carriers in the cell. The present invention also discloses a device for realizing said method and a MBMS transmission method based on dedicated carriers assigned the bundling information. The present invention realizes MBMS bundling on the dedicated carriers, and UE can receive services by directly sensing the carriers bearing control signaling, and thus it can reduce meaningless switching sense by the UE and save power.

Claims

1. A Multimedia Broadcast Multicast Service (MBMS) dedicated carrier configuration method, comprising:

assigning MBMS dedicated carrier bundling information to a downlink timeslot of a radio frame of one MBMS dedicated carrier in a cell; and

combining a downlink pilot timeslot, an uplink pilot timeslot, and a chip guard period between the downlink and the uplink in the MBMS dedicated carrier frame as a short timeslot corresponding to the downlink timeslot used to control information transmission, wherein the dedicated carrier bundling information includes MBMS system information and MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, wherein the downlink timeslot, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, comprises a MBMS broadcast control channel BCCH and a MBMS point-to-multipoint control channel MCCH, wherein the MBMS system information is carried on the BCCH and mapped to a primary common control physical channel PCCPCH via a broadcast channel BCH and the MBMS control information is carried on the MCCH and mapped to a secondary common control physical channel SCCPCH via a forward access channel FACH.

2. The MBMS dedicated carrier configuration method according to claim 1, wherein the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell are assigned to one downlink timeslot of the radio frame of the MBMS dedicated carrier.

3. The MBMS dedicated carrier configuration method according to claim 2, wherein the downlink timeslot, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, comprises one or more of a MBMS point-to-multipoint scheduling channel MSCH, a MBMS notification indicator channel MICH, a MBMS point-to-multipoint service channel MTCH and a conventional service paging channel.

4. The MBMS dedicated carrier configuration method according to claim 1, wherein the PCCPCH is located at a fixed position of the downlink timeslot, and the fixed position information is set in respective MBMS mobile terminals.

5. The MBMS dedicated carrier configuration method according to claim 1, wherein the downlink timeslot, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, is assigned MBMS service notification information or program guidance information, and the downlink timeslot is mapped to the secondary common control physical channel SCCPCH via a MBMS point-to-multipoint service channel MTCH.

6. The MBMS dedicated carrier configuration method according to claim 1, further comprising:

assigning frequency information and scrambling code group ID information of at least one of the MBMS dedicated carriers, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell to the conventional service carriers in the cell.

7. The MBMS dedicated carrier configuration method according to claim 1, wherein the MBMS system information is transmitted by system information blocks SIB.

8. The MBMS dedicated carrier configuration method according to claim 7, wherein the system information blocks carrying the MBMS system information include at least a SIB5 and a master information block.

9. The MBMS dedicated carrier configuration method according to claim 1, wherein the MBMS control information includes MBMS modified services information, MBMS unmodified services information, MBMS general information, MBMS common point-to-multipoint radio bearer information, MBMS current cell point-to-multipoint radio bearer information, and MBMS neighboring cell point-to-multipoint radio bearer information.

10. A Multimedia Broadcast Multicast Service (MBMS) dedicated carrier configuration base station comprising a processor and a memory storing instructions that, when executed by the processor, cause the processor to perform operations comprising:

assigning MBMS system information and MBMS control information of all MBMS dedicated carriers that are bundled to transmit MBMS services in a cell to one MBMS dedicated carrier in the cell; and

assigning frequency information and scrambling code group ID information of the MBMS dedicated carrier, assigned the MBMS system information and the MBMS control information of all MBMS dedicated carriers that are bundled to transmit MBMS services in the cell, to conventional service carriers in the cell; and

combining a downlink pilot timeslot, an uplink pilot timeslot, and a chip guard period between the downlink and the uplink in the MBMS dedicated carrier frame as a short timeslot used to control information transmission, wherein the short timeslot, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, comprises a MBMS broadcast control channel BCCH and a MBMS point-to-multipoint control channel MCCH, and the MBMS system information is carried on the BCCH and mapped to a primary common control physical channel PCCPCH via a broadcast channel BCH, wherein the MBMS control information is carried on the MCCH and mapped to a secondary common control physical channel SCCPCH via a forward access channel FACH.

11. The MBMS dedicated carrier configuration base station according to claim 10, wherein the MBMS system information and the MBMS control information of all dedicated carriers and that are bundled to transmit MBMS services in the cell are assigned to one downlink timeslot of the radio frame of a MBMS dedicated carrier.

12. The MBMS dedicated carrier configuration base station according to claim 10, wherein the PCCPCH is located at a fixed position of the downlink timeslot, and the fixed position information is set in respective MBMS mobile terminals.

13. The MBMS dedicated carrier configuration base station according to claim 10, wherein the MBMS system information is transmitted by system information blocks SIB.

14. The MBMS dedicated carrier configuration base station according claim 10, wherein the MBMS control information includes MBMS modified services information, MBMS unmodified services information, MBMS general information, MBMS common point-to-multipoint radio bearer information, MBMS current cell point-to-multipoint radio bearer information, and MBMS neighboring cell point-to-multipoint radio bearer information.

15. A Multimedia Broadcast Multicast Service (MBMS) transmission method based on dedicated carriers assigned bundling information, comprising:

assigning MBMS system information and MBMS control information of all MBMS dedicated carriers that are bundled to transmit MBMS services in a cell to one MBMS dedicated carrier in the cell;

assigning frequency information and scrambling code group ID information of the MBMS dedicated carrier, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, to conventional service carriers in the cell;

combining a downlink pilot timeslot, an uplink pilot timeslot, and a chip guard period between the downlink and the uplink in the MBMS dedicated carrier frame as a short timeslot used to control information transmission, wherein the short timeslot, assigned the MBMS system information and the MBMS control information of all dedicated carriers that are bundled to transmit MBMS services in the cell, comprises a MBMS broadcast control channel BCCH and a MBMS point-to-multipoint control channel MCCH, wherein the MBMS system information is carried on the BCCH and mapped to a primary common control physical channel PCCPCH via a broadcast channel BCH and the MBMS control information is carried on the MCCH and mapped to a secondary common control physical channel SCCPCH via a forward access channel FACH; and

sending MBMS data.

16. The MBMS transmission method based on dedicated carriers assigned with bundling information according to claim 15, further comprising:

a UE being synchronized to the conventional service carriers and acquiring the frequency information and the scrambling code group ID information of the MBMS dedicated carriers assigned the MBMS system information and control information, and the UE being synchronized to one dedicated carrier according to the time synchronization information of the conventional service carriers, the frequency information and the scrambling code group ID information of the MBMS dedicated carriers, the UE sensing the MBMS control information of the MBMS dedicated carriers and the MBMS system information to obtain the configuration information of the MBMS services, and receiving the MBMS data on the dedicated carrier.

17. The MBMS transmission method based on dedicated carriers configured with bundling information according to claim 16, wherein the UE senses the carriers in a discontinuous reception DRX manner.