IP Library Granted Patent US 9,331,762
Granted Patent B2
US 9,331,762 · App. 14/284,841 · Granted May 3, 2016

Wireless communication system, wireless communication apparatus, and wireless communication method

Inventor: Tomoya Yamaura (Tokyo, JP)
Assignee: Sony Corporation
H04B7/0473H04B7/0417H04B7/0421H04B7/0626H04B7/0628H04B7/0862H04W84/12
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Quick Facts
Patent No.
US 9,331,762
App. No.
14/284,841
Granted
May 3, 2016
Kind
B2
Abstract

A wireless communication system is disclosed. The wireless communication system performs data transmission using spatially multiplexed streams from a first terminal including N antennas to a second terminal including M antennas (N and M are integers larger than or equal to 2 and N>M).

Claims (33)

1. An electronic device for wireless communication, the electronic device comprising:

circuitry configured to:

receive sounding dimension information indicating a maximum value of streams corresponding to a beamformer capability, the sounding dimension information being included in a beamforming capability field defined in wireless network standard IEEE 802.11; and

transmit signals to a receiving device based at least in part on information included in the beamforming capability field, so as to establish a wireless communication channel,

wherein the sounding dimension information is included in the beamforming capability field adjacent to a beamformee capability,

wherein both the sounding dimension information and the beamformee capability are for compressed beamforming.

2. The electronic device of claim 1 , wherein the beamforming capability field is present in a management frame.

3. The electronic device of claim 2 , wherein the management frame includes:

a beacon signal, a measure pilot, an association response, a re-association response, and/or a probe response.

4. The electronic device of claim 1 , wherein the beamforming capability field further includes both implicit beamforming capability information and explicit beamforming capability information.

5. The electronic device of claim 1 , further comprising:

a plurality of antennas configured to transmit or receive signals including channel estimation capability information.

6. The electronic device of claim 5 , wherein a number of the plurality of antennas is two.

7. The electronic device of claim 5 , wherein a number of the plurality of antennas is three.

8. The electronic device of claim 5 , further comprising:

a plurality of digital filters configured to perform band limitation, the number of the plurality of digital filters being equal to a number of the plurality of antennas.

9. A mobile electronic apparatus for wireless communication, the mobile electronic apparatus comprising:

a plurality of antennas; and

circuitry configured to:

receive sounding dimension information indicating a maximum value of streams corresponding to a beamformer capability, the sounding dimension information being included in a beamforming capability field defined in wireless network standard IEEE 802.11; and

transmit signals to a receiving device based at least in part on information included in the beamforming capability field, so as to establish a wireless communication channel,

wherein the sounding dimension information is included in the beamforming capability field adjacent to a beamformee capability,

wherein both the sounding dimension information and the beamformee capability are for compressed beamforming.

10. The mobile electronic apparatus of claim 9 , wherein the mobile electronic apparatus is a mobile telephone.

11. A method for wireless communication, the method comprising:

receiving sounding dimension information indicating a maximum value of streams corresponding to a beamformer capability, the sounding dimension information being included in a beamforming capability field defined in wireless network standard IEEE 802.11; and

transmitting signals to a receiving device based at least in part on information included in the beamforming capability field, so as to establish a wireless communication channel,

wherein the sounding dimension information is included in the beamforming capability field adjacent to a beamformee capability,

wherein both the sounding dimension information and the beamformee capability are for compressed beamforming.

12. The method of claim 11 , wherein the beamforming capability field is present in a management frame.

13. The method of claim 12 , wherein the management frame includes:

a beacon signal, a measure pilot, an association response, a re-association response, and/or a probe response.

14. The method of claim 11 , wherein the transmit beamforming capability field further includes both implicit beamforming capability information and explicit beamforming capability information.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2014
From: YAMAURA, TOMOYA
To: SONY CORPORATION
Reel/Frame 032956/0160 →
Priority Claims (2)
JP 2006-124536 · Apr 27, 2006 · national
JP 2007-056244 · Mar 6, 2007 · national
Continuity (4)
Continuation 13958484 · Aug 2, 2013
Continuation 13541294 · Jul 3, 2012
Division 11913165
Related Publication 20140254578A1 · Sep 11, 2014