IP Library › Granted Patent US 9,467,259

Granted Patent B2

US 9,467,259 · App. 14/527,597 · Granted Oct 11, 2016

Methods and apparatus for wireless communication using a mixed format

Inventors: Rahul Tandra (San Diego, CA); Sameer Vermani (San Diego, CA); Bin Tian (San Diego, CA); Lin Yang (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04L5/003 H04B7/0452 H04L5/0007 H04L5/0023 H04L27/0008 H04L27/2601 H04L27/2602 H04W72/0453 H04L5/0069 H04L5/0094

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Quick Facts

Patent No.: US 9,467,259
App. No.: 14/527,597
Granted: Oct 11, 2016
Kind: B2

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Abstract

Methods and apparatus for multiple user communication are provided. In one aspect, method for wireless communication includes generating a packet comprising a multiple-user multiple-input multiple-output (MU-MIMO) portion and an orthogonal frequency division multiple access (OFDMA) portion. The method further includes transmitting the packet over a packet transmission frequency bandwidth.

Claims (34)

1. A method for wireless communication, comprising:

generating a packet comprising a multiple-user multiple-input multiple-output (MU-MIMO) portion, an orthogonal frequency division multiple access (OFDMA) portion, and a signal (SIG) field, wherein the SIG field indicates a frequency bandwidth location for the MU-MIMO portion within the packet transmission frequency bandwidth; and

transmitting the packet over a packet transmission frequency bandwidth.

2. The method of claim 1 , wherein the transmitting comprises transmitting the MU-MIMO portion of the packet over a portion of the packet transmission frequency bandwidth and the OFDMA portion of the packet over a remaining portion of the packet transmission frequency bandwidth.

3. The method of claim 1 , wherein the SIG field indicates whether the transmission of the packet is containing the MU-MIMO and OFDMA portions.

4. The method of claim 3 , wherein a format of a field in the SIG field is based at least in part on whether the transmission of the packet is containing the MU-MIMO and OFDMA portions.

5. The method of claim 1 , wherein the SIG field indicates a frequency bandwidth of the transmission of the MU-MIMO portion.

6. The method of claim 1 , wherein the SIG field comprises a group identifier field indicating a group of stations intended to receive the transmission of the MU-MIMO portion.

7. The method of claim 1 , wherein the SIG field comprises a group identifier field indicating a group of stations intended to receive the transmission of the OFDMA portion.

8. An apparatus for wireless communication comprising:

a processor configured to generate a packet comprising a multiple-user multiple-input multiple-output (MU-MIMO) portion, an orthogonal frequency division multiple access (OFDMA) portion, and a signal (SIG) field, wherein the SIG field indicates a frequency bandwidth location for the MU-MIMO portion within the packet transmission frequency bandwidth; and

a transmitter configured to transmit the packet over a packet transmission frequency bandwidth.

9. The apparatus of claim 8 , wherein the transmitter is further configured to transmit the MU-MIMO portion of the packet over a portion of the packet transmission frequency bandwidth and the OFDMA portion of the packet over a remaining portion of the packet transmission frequency bandwidth.

10. The apparatus of claim 8 , wherein the SIG field indicates whether the transmission of the packet is containing transmission of MU-MIMO and OFDMA portions.

11. The apparatus of claim 10 , wherein a format of a field in the SIG field is based at least in part on whether the transmission of the packet is containing the transmission of the MU-MIMO and OFDMA portions.

12. The apparatus of claim 8 , wherein the SIG field indicates a frequency bandwidth of the transmission of the MU-MIMO portion.

13. The apparatus of claim 8 , wherein the SIG field comprises a group identifier field indicating a group of stations intended to receive the transmission of the MU-MIMO portion.

14. The apparatus of claim 8 , wherein the SIG field comprises a group identifier field indicating a group of stations intended to receive the transmission of the OFDMA portion.

15. An apparatus for wireless communication comprising:

means for generating a packet comprising a multiple-user multiple-input multiple-output (MU-MIMO) portion, an orthogonal frequency division multiple access (OFDMA) portion, and a signal (SIG) field, wherein the SIG field indicates a frequency bandwidth location for the MU-MIMO portion within the packet transmission frequency bandwidth; and

means for transmitting the packet over a packet transmission frequency bandwidth.

16. The apparatus of claim 15 , wherein means for transmitting is further configured to transmit the MU-MIMO portion of the packet over a portion of the packet transmission frequency bandwidth and the OFDMA portion of the packet over a remaining portion of the packet transmission frequency bandwidth.

17. The apparatus of claim 15 , wherein the SIG field indicates whether the transmission of the packet is containing transmission of MU-MIMO and OFDMA portions.

18. The apparatus of claim 17 , wherein a format of a field in the SIG field is based at least in part on whether the transmission of the packet is containing the transmission of the MU-MIMO and OFDMA portions.

19. The apparatus of claim 15 , wherein the SIG field indicates a frequency bandwidth of the transmission of the MU-MIMO portion.

20. The apparatus of claim 15 , wherein the SIG field comprises a first group identifier field indicating a first group of stations intended to receive the transmission of the MU-MIMO portion, wherein the SIG field comprises a second group identifier field indicating a second group of stations intended to receive the transmission of the OFDMA portion.

21. A non-transitory computer readable medium comprising instructions that when executed cause a processor to perform a method of:

transmitting the packet over a packet transmission frequency bandwidth.

22. The medium of claim 21 , wherein transmitting the packet comprises transmitting the MU-MIMO portion of the packet over a portion of the packet transmission frequency bandwidth and the OFDMA portion of the packet over a remaining portion of the packet transmission frequency bandwidth.

23. The medium of claim 21 , wherein the SIG field indicates whether the transmission of the packet is containing transmission of MU-MIMO and OFDMA portions.

24. The medium of claim 23 , wherein a format of a field in the SIG field is based at least in part on whether the transmission of the packet is containing the transmission of the MU-MIMO and OFDMA portions.

25. The medium of claim 21 , wherein the SIG field indicates a frequency bandwidth of the transmission of the MU-MIMO portion.

26. The medium of claim 21 , wherein the SIG field comprises a first group identifier field indicating a first group of stations intended to receive the transmission of the MU-MIMO portion, wherein the SIG field comprises a second group identifier field indicating a second group of stations intended to receive the transmission of the OFDMA portion.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2014

From: TANDRA, RAHUL; VERMANI, SAMEER; TIAN, BIN; YANG, LIN

To: QUALCOMM INCORPORATED

Reel/Frame 034552/0132 →

Continuity (2)

Provisional Application 61898900 · Nov 1, 2013

Related Publication 20150124745A1 · May 7, 2015