NEW FRAME AND DATA PATTERN STRUCTURE FOR MULTI-CARRIER SYSTEMS

• US 20100061398A1
• Filed: 08/21/2009
• Published: 03/11/2010
• Est. Priority Date: 09/08/2008
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: SCHILL, Dietmar, ROBERT, Joerg, STADELMEIER, Lothar
• Granted Patent: US 8,194,529 B2
• Time in Patent Office: Days
• US Class Current: 370/465
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

The present invention relates to a transmitting apparatus (54) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, said transmitting apparatus comprising

• frame forming means (59) adapted to arrange signalling data in said at least one signalling pattern in a frame, and to arrange data and at least one pilot signal in said one or more data patterns in a frame, whereby the length of each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length, transforming means (60) adapted to transform said at least one signalling pattern and said one or more data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said time domain transmission signal. The present invention further relates to a corresponding transmitting method and a frame structure as well as a receiving apparatus and method, as well as a transmitting and receiving system and method.

Claims

1. Transmitting apparatus (54) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, said transmitting apparatus comprising frame forming means (59) adapted to arrange signalling data in said at least one signalling pattern in a frame, and to arrange data and at least one pilot signal in said one or more data patterns in a frame, whereby the length of each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length,

transforming means (60) adapted to transform said at least one signalling pattern and said one or more data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said time domain transmission signal.

2. Transmitting apparatus according to claim 1, wherein said signalling data comprise the length of the one or more data patterns on the basis of the minimum data pattern length.

3. Transmitting apparatus (54) according to claim 1,

wherein the number of scattered pilot signals in each data pattern is directly proportional to the number of minimum data patterns lengths of the respective data pattern.

4. Transmitting apparatus (54) according to claim 1,

wherein the pilot signals in said pilot signal pattern have a regular spacing in the frequency direction, wherein the minimum data pattern length corresponds to the spacing between two adjacent pilot signals in the frequency direction.

5. Transmitting apparatus (54) according to claim 1,

wherein each data pattern has the same length in the time direction.

6. Transmitting apparatus (54) according to claim 5,

wherein the length of each data pattern in the time direction corresponds to the spacing between two adjacent scattered pilot signals in the time direction.

7. Transmitting method for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, comprising the steps of

arranging signalling data in said at least one signalling pattern in a frame, arranging data and at least one pilot signal in said one or more data patterns in a frame, whereby the length of each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length, transforming said at least one signalling pattern and said one or more data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and

transmitting said time domain transmission signal.

8. Frame pattern for a multi carrier system, comprising one signalling pattern and one or more data patterns, wherein data and at least one pilot signal are arranged in each of said one or more data patterns in the frame, and wherein the length of each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length.

9. Receiving apparatus (63) for receiving signals in a multi carrier system on the basis of a frame structure in a transmission bandwidth, each frame comprising one or more data patterns with data and pilot signals, whereby the length of each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length,

said receiving apparatus (63) comprising

receiving means (65) adapted to be tuned to and to receive a selected part of said transmission bandwidth, said selected part of said transmission bandwidth covering at least one data pattern to be received,

channel estimation means (69) adapted to perform a channel estimation on the basis of pilot signals comprised in a received data pattern and

data de-mapping means (70) adapted to de-map data from frequency carriers of a received data pattern on the basis of the result of said channel estimation.

10. Receiving apparatus (63) according to claim 9,

wherein each frame comprises at least one signalling pattern having signalling data, said signalling data comprising the length of each of said one or more data patterns in reference to said minimum data pattern length,

said receiving apparatus (63) further comprising evaluation means (73) adapted to extract said length from received signalling data.

11. Receiving apparatus (63) according to claim 9,

wherein the number of scattered pilot signals in each received data pattern is directly proportional to the number of minimum data patterns lengths comprised in said received data pattern, wherein said channel estimation means (69) adapted to perform a channel estimation on the basis of said pilot signals.

12. Receiving apparatus (63) according to claim 9,

wherein the pilot signals in the one or more data patterns of a frame are arranged in pilot signal patterns, in which the pilot signals have a regular spacing in the frequency dimension, wherein the minimum data pattern length corresponds to the spacing between two adjacent pilot signals in the frequency direction.

13. Receiving apparatus (63) according to claim 9,

wherein each data pattern has the same length in the time direction, wherein the length of the data patterns in the time direction corresponds to the spacing between two adjacent scattered pilot signals in the time direction.

14. Receiving apparatus (63) according to claim 9,

comprising a time de-interleaving means (77) adapted to perform a block wise time de-interleaving on received data patterns with a block length corresponding to a multiple of the data pattern length in the time direction.

16. System for transmitting and receiving signals, comprising a transmitting apparatus (54) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, said transmitting apparatus comprising

frame forming means (59) adapted to arrange signalling data in said at least one signalling pattern in a frame, and to arrange data and at least one pilot signal in said one or more data patterns in a frame, whereby the length each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length,

transforming means (60) adapted to transform said at least one signalling pattern and said one or more data pattern from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said time domain transmission signal,

said system further comprising a receiving apparatus (63) according to claim 9 adapted to receive said time domain transmission signal from said transmitting apparatus (54).

15. Receiving method for receiving signals in a multi carrier system on the basis of a frame structure in a transmission bandwidth, each frame comprising one or more data patterns with data and pilot signals, whereby the length of each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length, comprising the steps of receiving a selected part of said transmission bandwidth, said selected part of said transmission bandwidth covering at least one data pattern to be received, performing a channel estimation on the basis of pilot signals comprised in a received data pattern, and

de-mapping data from frequency carriers of a received data pattern on the basis of the result of said channel estimation.

17. Method for transmitting and receiving signals, comprising a transmitting method for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, comprising the steps of

arranging signalling data in said at least one signalling pattern in a frame,

arranging data and at least one pilot signal in said one or more data patterns in a frame, whereby the length each of said one or more data patterns in the frequency direction is equal to or a multiple of a minimum data pattern length,

transforming said at least one signalling pattern and said one or more data pattern from the frequency domain into the time domain in order to generate a time domain transmission signal, and

transmitting said time domain transmission signal,

said method further comprising a receiving method according to claim 15 adapted to receive said time domain transmission signal.