MULTIPLE ANTENNA WIRELESS TELECOMMUNICATION METHOD AND SYSTEM

• US 20100157970A1
• Filed: 12/15/2009
• Published: 06/24/2010
• Est. Priority Date: 12/18/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: DesignArt Networks Limited (Qualcomm, Inc.)
• Inventors: GOTMAN, MAX, TOUBOUL, ASSAF, BARAK, OZ
• Granted Patent: US 8,831,541 B2
• Time in Patent Office: Days
• US Class Current: 370/344
• 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 transmitted signal to individual sub-channels or groups of sub-channels;

boosting each of said sub-channels or groups of sub-channels; and

routing each of said sub-channels or groups of sub-channels to a different transmit antenna.

2. The method according to claim 1, wherein said step of boosting includes boosting each of the sub-channels or groups of sub-channels by a factor which is an inverse of the ratio of the group'"'"'s aggregate bandwidth (BW) to the total available BW.

3. The method according to claim 1, wherein said step of routing includes providing Cyclic Delay Diversity and routing each of said sub-channels or groups of sub-channels to a different pair of transmit antennae.

4. The method according to claim 2, wherein said step of routing includes providing Cyclic Delay Diversity and routing each of said sub-channels or groups of sub-channels to a different pair of transmit antennae.

5. The method according to claim 1, wherein said transmitted signal is a map message in a WiMAX transmission.

6. The method according to claim 1, wherein said subchannels 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 said step of splitting includes said frame manager splitting a burst carrying map messages.

8. The wireless telecommunication method according to claim 1, wherein said step of splitting includes said frame manager splitting a burst carrying a transmission from a downlink PUSC (Partial Usage of Sub-channels) zone.

9. The wireless telecommunication method according to claim 1, wherein said step of splitting includes said frame manager splitting a burst carrying map messages.

10. The wireless telecommunication method according to claim 1, wherein said step of splitting includes said frame manager splitting a burst carrying a WiMAX preamble.

11. The wireless telecommunication method according to claim 1, wherein said step of splitting includes said frame manager splitting a burst carrying an AMC (Adaptive Modulation and Coding) zone transmission.

12. 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 antennae.

13. 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 antennae.

14. The method according to claim 12, further comprising SFBC (Space-Frequency Block Coding) for LTE.

15. The method according to claim 13, further comprising SFBC (Space-Frequency Block Coding) for LTE.

16. 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 antennae;

a MAC frame manager and wireless driver in said transmitter for implementing a downlink switched sub-channels diversity (DSSD) scheme during transmission, wherein said frame manager splits a total transmitted bandwidth into at least 2 individual sub-channels or groups of sub-channels; and

beam forming hardware in said transmitter for boosting each of said sub-channels or groups of sub-channels and routing each of said sub-channels or groups of sub-channels to a different one of said transmit antennae.

17. The wireless telecommunication method according to claim 16, wherein said frame manager splits a burst carrying map messages.

18. The wireless telecommunication method according to claim 17, wherein said frame manager splits a burst carrying a transmission from a downlink PUSC (Partial Usage of Sub-channels) zone.

19. The wireless telecommunication method according to claim 16, wherein said frame manager splits a burst carrying a WiMAX preamble.

20. The wireless telecommunication method according to claim 16, wherein said frame manager splits a burst carrying an AMC (Adaptive Modulation and Coding) zone transmission.