Multiple antenna wireless telecommunication method and system

• US 8,831,541 B2
• Filed: 12/15/2009
• Issued: 09/09/2014
• Est. Priority Date: 12/18/2008
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Touboul, Assaf, Barak, Oz, Gotman, Max
• Primary Examiner(s): KIM, WESLEY LEO
• Application Number:
  US12/637,775
• Publication Number:
  US 20100157970A1
• Time in Patent Office: 1,729 Days
• Field of Search: 455/522, 455/101, 455/103, 375/267
• US Class Current: 455/101
• CPC Class Codes: H04B 7/0697 using spatial multiplexing
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0044 allocation of payload

Abstract

A wireless telecommunication system and method including at least two transmit antennae and means for implementing a downlink switched sub-channels diversity scheme during transmission. The method includes splitting a total bandwidth allocated for transmission of a transmitted signal to individual sub-channels or groups of sub-channels; boosting each of the sub-channels or groups of sub-channels; and routing each of the sub-channels or groups of sub-channels to a different transmit antenna.

Claims

1. A method for transmission over a wireless telecommunication system utilizing OFDM (Orthogonal Frequency Division Multiplexing) or SC-FDMA (Single-Carrier Frequency Division Multiple Access), and MIMO (Multiple In Multiple Out) antenna techniques, the method comprising:

splitting a total bandwidth allocated for transmission of a signal into a plurality of groups of sub-channels;

splitting a map message associated with the signal into a plurality of map message fragments, each of the plurality of map message fragments associated with one of the groups of sub-channels from the plurality of groups of sub-channels;

splitting the plurality of groups of sub-channels into a plurality of sub-bursts, wherein each sub-burst includes one of the map message fragments;

boosting each of sub-burst of the plurality of sub-bursts; and

routing each boosted sub-burst to a different transmit antenna.

2. The method according to claim 1, wherein said boosting includes boosting each sub-burst of the plurality of sub-bursts by a factor which is an inverse of a ratio of an aggregate group bandwidth (BW) to the total available BW.

3. The method according to claim 2, wherein said step of routing includes providing STC (Space-Time Coding) Matrix A and routing each of said sub-channels or groups of sub-channels to a different pair of transmit antennas.

4. The method according to claim 3, further comprising SFBC (Space-Frequency Block Coding) for LTE.

5. The method according to claim 1, wherein said routing includes providing Cyclic Delay Diversity and routing each sub-burst of the plurality of sub-bursts to a different transmit antenna.

6. The method according to claim 1, wherein said sub-channels are LTE resource blocks (RBs) and said groups of sub-channels are groups of RBs.

7. The wireless telecommunication method according to claim 1, wherein the map message comprises a transmission from a downlink PUSC (Partial Usage of Sub-channels) zone.

8. The wireless telecommunication method according to claim 1, wherein the map message comprises a portion of a WiMAX preamble.

9. The wireless telecommunication method according to claim 1, wherein the map message comprises a portion of an AMC (Adaptive Modulation and Coding) zone transmission.

10. The method according to claim 1, wherein said step of routing includes providing STC (Space-Time Coding) Matrix A and routing each of said sub-channels or groups of sub-channels to a different pair of transmit antennas.

11. The method according to claim 10, further comprising SFBC (Space-Frequency Block Coding) for LTE.

12. A wireless communication system utilizing OFDM (Orthogonal Frequency Division Multiplexing) or SC-FDMA (Single-Carrier Frequency Division Multiple Access), and MIMO (Multiple In Multiple Out) antenna techniques, the system comprising:

a transmitter including at least two transmit antennas;

a MAC frame manager and wireless driver in the transmitter for implementing a downlink switched sub-channels diversity (DSSD) scheme during transmission, wherein the MAC frame manager is configured to;

split a total bandwidth allocated for transmission of a transmitted signal into a plurality of groups of sub-channels;

split a map message associated with the signal into a plurality of map message fragments, each of the plurality of map message fragments associated with one of the groups of sub-channels from the plurality of groups of sub-channels; and

split the plurality of groups of sub-channels into a plurality of sub-bursts, wherein each sub-burst includes one of the map message fragments; and

beam forming hardware in the transmitter configured to;

boost each sub-burst of the plurality of sub-bursts; and

route each boosted sub-burst to a different transmit antenna.

13. The wireless telecommunication system of claim 12, wherein the map message comprises a transmission from a downlink PUSC (Partial Usage of Sub-channels) zone.

14. The wireless telecommunication system of claim 12, wherein the map message comprises a portion of a WiMAX preamble.

15. The wireless telecommunication system of claim 12, wherein the map message comprises a portion of an AMC (Adaptive Modulation and Coding) zone transmission.

16. An apparatus for transmitting over a wireless telecommunication system utilizing OFDM (Orthogonal Frequency Division Multiplexing) or SC-FDMA (Single-Carrier Frequency Division Multiple Access), and MIMO (Multiple In Multiple Out) antenna techniques, the apparatus comprising:

means for splitting a total bandwidth allocated for transmission of a signal into a plurality of groups of sub-channels;

means for splitting a map message associated with the signal into a plurality of map message fragments, each of the plurality of map message fragments associated with one of the groups of sub-channels from the plurality of groups of sub-channels; and

means for splitting the plurality of groups of sub-channels into a plurality of sub-bursts, wherein each sub-burst includes one of the map message fragments;

means for boosting each sub-burst of the plurality of sub-bursts; and

means for routing each boosted sub-burst to a different transmit antenna.

17. The apparatus according to claim 16, wherein the means for boosting comprises:

means for boosting each sub-burst of the plurality of sub-bursts by a factor which is an inverse of a ratio of group'"'"'s aggregate bandwidth (BW) to the total available BW.

18. The apparatus according to claim 16, wherein means for routing comprises:

means for providing Cyclic Delay Diversity and routing each boosted sub-burst to a different transmit antenna.

19. The apparatus according to claim 16, wherein the map message comprises a portion of a transmission from a downlink PUSC (Partial Usage of Sub-channels) zone.

20. The apparatus according to claim 16, wherein the map message comprises a portion of a WiMAX preamble.

21. The apparatus according to claim 16, wherein the map message comprises a portion of an AMC (Adaptive Modulation and Coding) zone transmission.