METHOD AND APPARATUS FOR TRANSMITTING RANK INDICATION INFORMATION

• US 20110129033A1
• Filed: 07/03/2009
• Published: 06/02/2011
• Est. Priority Date: 07/23/2008
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Yu, Guanghui, Liang, Chunli, Dai, Bo, Xia, Shuqiang, Hao, Peng
• Granted Patent: US 8,913,673 B2
• Time in Patent Office: Days
• US Class Current: 375/299
• CPC Class Codes: H04B 7/063 Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
• CPC Class Codes: H04B 7/0671 using different delays between antennas

Abstract

The present invention discloses a method and apparatus for transmitting rank indication information, in which the method comprises: when rank indication information and a sounding reference signal are transmitted in a same sub-frame, loading the sounding reference signal to a last symbol of a sub-frame, and transmitting the rank indication information and the sounding reference signal. The present invention prevents destruction of orthogonality of codes between PUCCH channels when the rank indication information and the sounding reference signal are transmitted in the same sub-frame, thus the overall performance of the system can be ensured.

Claims

1. The method for transmitting Rank Indication, RI, information, comprising:

when the RI information and a Sounding Reference Signal, SRS, are transmitted in a same sub-frame, loading the SRS in a last symbol of he sub-frame;

transmitting the RI information and the SRS.

2. The method according to claim 1, wherein transmitting the RI information and the SRS specifically is:

transmitting the SRS in the last symbol;

transmitting the RI information in other symbols except for the last symbol.

3. The method according to claim 2, wherein the sub-frame structure comprise one of the following structures:

a normal Cyclic Prefix, CP, sub-frame structure, an expanded CP sub-frame structure.

4. A method for transmitting Rank Indication, RI, information, comprising:

when the RI information and a Sounding Reference Signal, SRS, are transmitted in a same sub-frame, only transmitting the RI information.

5. An apparatus for transmitting Rank Indication, RI, information, comprising:

a loading module, configured to, when the RI information and a Sounding Reference Signal, SRS, are transmitted in a same sub-frame, load the SRS in a last symbol of the sub-frame;

a transmitting module, configured to transmit the RI information and the SRS.