Method and apparatus for information transmission in a radio communication system

• US 8,873,673 B2
• Filed: 11/26/2013
• Issued: 10/28/2014
• Est. Priority Date: 08/11/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Han, Seung Hee, Lee, Moon II, Kwon, Yeong Hyeon, Ko, Hyun Soo, Koo, Ja Ho, Kim, Dong Cheol, Chung, Jae Hoon, Moon, Sung Ho, Kwak, Jin Sam, Noh, Min Seok, Lee, Hyun Woo
• Primary Examiner(s): FILE, ERIN M
• Application Number:
  US14/091,071
• Publication Number:
  US 20140086358A1
• Time in Patent Office: 336 Days
• Field of Search: 375/295
• US Class Current: 375/295
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04B 7/06 at the transmitting station
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04B 7/0669 using different channel coding between antennas space-time coding H04L1/0618
• CPC Class Codes: H04J 13/0062 Zadoff-Chu
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0606 Space-frequency coding
• CPC Class Codes: H04L 1/0668 Orthogonal systems, e.g. using Alamouti codes
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/26035 Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences using different training sequence per antenna H04B7/0684; code allocation H04J13/16
• CPC Class Codes: H04L 27/2626 Arrangements specific to the transmitter only
• CPC Class Codes: H04L 27/2627 Modulators
• CPC Class Codes: H04L 27/34 Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 : Physical resource allocation for CQI
• CPC Class Codes: H04L 5/0091 : Signaling for the administration of the divided path

Abstract

A method of transmitting, by a transmitter, information in a wireless communication system, the method includes generating first and second symbols; generating first and second transmit vectors on the basis of an Alamouti code from the first and second symbols; and transmitting the first transmit vector through a first antenna and transmitting the second transmit vector through a second antenna. The first transmit vector consists of a first transmit symbol and a second transmit symbol. The second transmit vector consists of a third transmit symbol and a fourth transmit symbol. The first, second, third, and fourth transmit symbols are transmitted based on first and second resource indexes. The first symbol is a first modulation symbol for first information, and the second symbol is a second modulation symbol for second information.

Claims

1. A method of transmitting, by a transmitter, information in a wireless communication system, the method comprising:

generating first and second symbols;

generating first and second transmit vectors based on the first and second symbols; and

transmitting the first transmit vector through a first antenna and transmitting the second transmit vector through a second antenna,

wherein the first transmit vector consists of a first transmit symbol and a second transmit symbol,

wherein the second transmit vector consists of a third transmit symbol and a fourth transmit symbol,

wherein the first transmit vector and the second transmit vector are transmitted through a frame that includes a control region and a data region comprising a plurality of OFDM symbols, and

wherein the control region includes control information for transmission of data and the number of OFDM symbols carrying the control information is variable.

2. The method of claim 1, wherein the first symbol is a first modulation symbol for first information, and the second symbol is a second modulation symbol for second information.

3. The method of claim 1, wherein the first transmit symbol is generated based on the first symbol, the second transmit symbol is generated based on the second symbol, the third transmit symbol is obtained by appending a negative sign to a complex conjugate of the second transmit symbol, and the fourth transmit symbol is a complex conjugate of the first transmit symbol.

4. The method of claim 1, wherein resources corresponding to the control region in a frame include at least one symbol spread in a frequency domain, and wherein the spread, at least one symbol is generated based on a specific sequence.

5. A transmitter in a wireless communication system, the transmitter comprising:

a modulator for generating a first symbol and a second symbol by modulating an information bit stream;

a space block coding (SBC) processor for generating a first transmit vector consisting of a first transmit symbol and a second transmit symbol, and a second transmit symbol consisting of a third transmit symbol and a fourth transmit symbol based on the first and second symbols;

a first antenna for transmitting the first transmit vector; and

a second antenna for transmitting the second transmit vector,

wherein the first transmit vector and the second transmit vector are transmitted through a frame that includes a control region and a data region comprising a plurality of OFDM symbols, and wherein the control region includes control information for transmission of data and the number of OFDM symbols carrying the control information is variable.

6. The transmitter of claim 5, wherein the first symbol is a first modulation symbol for first information, and the second symbol is a second modulation symbol for second information.

7. The transmitter of claim 5, wherein the first transmit symbol is generated based on the first symbol, the second transmit symbol is generated based on the second symbol, the third transmit symbol is obtained by appending a negative sign to a complex conjugate of the second transmit symbol, and the fourth transmit symbol is a complex conjugate of the first transmit symbol.

8. The transmitter of claim 5, wherein resources corresponding to the control region in a frame include at least one symbol spread in a frequency domain, and wherein the spread, at least one symbol is generated based on a specific sequence.