Method of indicating number of antennas in network broadcast system

• US 8,514,745 B2
• Filed: 05/27/2010
• Issued: 08/20/2013
• Est. Priority Date: 05/27/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Roh, Dongwook, Kim, Bonghoe, Lee, Daewon, Noh, Yujin, Kang, Byeongwoo
• Primary Examiner(s): Mesfin, Yemane
• Assistant Examiner(s): DUONG, CHRISTINE T
• Application Number:
  US12/788,750
• Publication Number:
  US 20100302978A1
• Time in Patent Office: 1,181 Days
• Field of Search: None
• US Class Current: 370/255
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data

Abstract

A method for generating a broadcast signal includes forming an information block for transmission, the information block including a first field comprising a plurality of bits configured to impart information to a first group of user equipment (UEs) regarding a first evolved NodeB (eNodeB) transmit antenna configuration. The method further includes generating error detection bits based upon the information block and scrambling the error detection bits using a mask according to a second eNodeB transmit antenna configuration, such that the mask is configured to impart information to a second group of UEs regarding the second eNodeB transmit antenna configuration. The method also includes generating the broadcast signal having the information block and the scrambled error detection bits, and transmitting the generated broadcast signal via a packet broadcast control channel.

Claims

1. A method for generating a broadcast signal, the method comprising:

forming an information block for transmission, the information block comprising a first field comprising a plurality of bits having a predetermined value;

generating error detection bits based upon the information block;

scrambling the plurality of bits of the first field and the error detection bits using a mask, wherein the mask comprises a first mask pattern to scramble the plurality of bits of the first field and a second mask pattern to scramble the error detection bits;

generating the broadcast signal comprising the information block including the scrambled plurality of bits, and the scrambled error detection bits; and

transmitting the generated broadcast signal via a packet broadcast control channel,

wherein the first mask pattern imparts information to a first group of user equipment (UEs) regarding a first evolved NodeB (eNodeB) transmit antenna configuration and the second mask pattern imparts information to a second group of UEs regarding a second eNodeB transmit antenna configuration.

2. The method of claim 1, wherein the first eNodeB transmit antenna configuration is different from the second eNodeB transmit antenna configuration.

3. The method of claim 1, wherein the first eNodeB transmit antenna configuration is the same as the second eNodeB transmit antenna configuration.

4. The method of claim 1,

wherein the second eNodeB transmit antenna configuration is one of a total of three configurations,

wherein the second mask pattern corresponds to the one of the total of three configurations,

wherein the first evolved NodeB (eNodeB) transmit antenna configuration is one of a total of four configurations, and

wherein the first mask pattern defines a value corresponding to the one of the total of four configurations.

5. The method of claim 1, wherein the error detection bits define a 16-bit cyclic redundancy check (CRC) and the mask is a CRC mask.

6. The method of claim 1, wherein the first mask pattern comprises 2 bits for identifying 4 separate antenna configurations of the first eNodeB transmit antenna configuration.

7. The method of claim 1, wherein the information block further comprises a second field configured to impart, to both the first group of UEs and the second group of UEs, information regarding a transmission bandwidth configuration and a third field configured to impart, to both the first group of UEs and the second group of UEs, information regarding a system frame number.

8. A wireless broadcast system, comprising:

a transmitter configured to transmit a generated broadcast signal via a packet broadcast control channel;

a processor configured to;

form an information block for transmission, the information block comprising a first field comprising a plurality of bits having a predetermined value;

generate error detection bits based upon the information block;

scramble the plurality of bits of the first field and the error detection bits using a mask, wherein the mask comprises a first mask pattern to scramble the plurality of bits of the first field and a second mask pattern to scramble the error detection bits;

generate the broadcast signal comprising the information block including the scrambled plurality of bits and the scrambled error detection bits; and

cause the transmitter to transmit the generated broadcast signal via the packet broadcast channel,

wherein the first mask pattern imparts information to a first group of user equipment (UEs) regarding a first evolved NodeB (eNodeB) transmit antenna configuration and the second mask pattern imparts information to a second group of UEs regarding a second eNodeB transmit antenna configuration.

9. The wireless broadcast system of claim 8, wherein the first eNodeB transmit antenna configuration is different from the second eNodeB transmit antenna configuration.

10. The wireless broadcast system of claim 8, wherein the first eNodeB transmit antenna configuration is the same as the second eNodeB transmit antenna configuration.

11. The wireless broadcast system of claim 8,

wherein the second eNodeB transmit antenna configuration is one of a total of three configurations,

wherein the first mask pattern corresponds to the one of the total of three configurations,

wherein the first evolved NodeB (eNodeB) transmit antenna configuration is one of a total of four configurations, and

wherein the second mask pattern defines a value corresponding to the one of the total of four configurations.

12. The wireless broadcast system of claim 8, wherein the error detection bits define a 16-bit cyclic redundancy check (CRC) and the mask is a CRC mask.

13. The wireless broadcast system of claim 8, wherein the first mask pattern comprises 2 bits for identifying 4 separate antenna configurations of the first eNodeB transmit antenna configuration.

14. The wireless broadcast system of claim 8, wherein the information block further comprises a second field configured to impart, to both the first group of UEs and the second group of UEs, information regarding a transmission bandwidth configuration and a third field configured to impart, to both the first group of UEs and the second group of UEs, information regarding a system frame number.