IP Library Granted Patent US 9,161,372
Granted Patent B2
US 9,161,372 · App. 14/136,927 · Granted Oct 13, 2015

Communication system, a communication method, and a communication apparatus with clear to send signal frame

Inventor: Hiroaki Takano (Saitama, JP)
Assignee: SONY CORPORATION
H04W74/0816H04L1/1671
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Quick Facts
Patent No.
US 9,161,372
App. No.
14/136,927
Granted
Oct 13, 2015
Kind
B2
Abstract

A communication system for carrying out data communication among a plurality of communication stations is disclosed in which a first communication station for transmitting to other communication stations a Request To Send (RTS) signal for requesting a transmission upon the start of the data transmission; and a plurality of second communication stations transmitting to other communication stations a Clear To Send (CTS) signal for notifying the completion of preparing the reception, wherein the first communication station transmits the RTS signal describing at least each of addresses the second communication stations that are desired to receive the data, and receives a plurality of CTS signals transmitted from each of the second communication stations in order to increase communication capacity.

Claims (76)

1. An electronic device for wireless communication, comprising:

circuitry configured to

control transmitting a request to send (RTS) signal indicating a request to initiate data transmission, and

control receiving a clear to send (CTS) signal from a second electronic device, the CTS signal is transmitted in response to the RTS signal, wherein

the CTS signal includes a first CTS section and a second CTS section,

the first CTS section including the first address indicating the first electronic device, and

the second CTS section including a second address indicating the second electronic device.

2. The electronic device of claim 1 , wherein the RTS signal includes a first RTS section and a second RTS section,

the first RTS section including a third address indicating at least one electronic device, and

the second RTS section including the first address.

3. The electronic device of claim 2 , wherein the third address indicates more than two electronic devices including the second electronic device.

4. The electronic device of claim 2 , wherein the third address is transmitted prior to the first address in the RTS signal.

5. The electronic device of claim 2 , wherein the first address included in the first CTS section is set in reference to the address of the first address included in the second RTS section.

6. The electronic device of claim 1 , wherein the first address is received prior to the second address in the CTS signal.

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

a plurality of antennas via which the RTS signal is transmitted and the CTS signal is received.

8. The electronic device of claim 7 , wherein the number of the plurality of antennas is equal to three.

9. The electronic device of claim 7 , wherein the plurality of antennas are array antennas via which signals are transmitted with special multiplexing.

10. The electronic device of claim 7 , wherein the second device is a television and a plurality of streams are transmitted via the plurality of antennas.

11. The method of claim 7 , wherein the plurality of antennas are array antennas via which signals are transmitted with special multiplexing.

12. The method of claim 1 , wherein

the transmit circuitry includes a plurality of antennas via which the RTS signal is transmitted and the CTS signal is received.

13. The method of claim 12 , wherein the number of the plurality of antennas is equal to three.

14. The method of claim 12 , wherein the second device is a television and a plurality of streams are transmitted via the plurality of antennas.

15. An electronic device for wireless communication, comprising:

circuitry configured to

control receiving a request to send (RTS) signal indicating a request to initiate data transmission, and

control transmitting a clear to send (CTS) signal to a first electronic device, the CTS signal is transmitted in response to the RTS signal, wherein

the CTS signal includes a first CTS section and a second CTS section,

the first CTS section including the first address indicating the first electronic device, and

the second CTS section including a second address indicating the second electronic device.

16. The electronic device of claim 15 , wherein the RTS signal includes a first RTS section and a second RTS section,

the first RTS section including a third address indicating at least one electronic device, and

the second RTS section including the first address.

17. The electronic device of claim 16 , wherein the third address indicates more than two electronic devices including the second electronic device.

18. The electronic device of claim 16 , wherein the third address is transmitted prior to the first address in the RTS signal.

19. The electronic device of claim 16 , wherein the first address included in the first CTS section is set in reference to the address of the first address included in the second RTS section.

20. The electronic device of claim 16 , further comprising:

a plurality of antennas via which the RTS signal is received and the CTS signal is transmitted.

21. The electronic device of claim 20 , wherein the number of the plurality of antennas is equal to three.

22. The electronic device of claim 20 , wherein the plurality of antennas are array antennas via which signals are transmitted with special multiplexing.

23. The electronic device of claim 20 , wherein the second device is a television and a plurality of streams are received via the plurality of antennas.

24. The electronic device of claim 15 , wherein the first address is received prior to the second address in the CTS signal.

25. A method for wireless communication, comprising:

transmitting with transmit circuitry a request to send (RTS) signal indicating a request to initiate data transmission;

receiving a clear to send (CTS) signal from a second electronic device, the CTS signal is transmitted in response to the RTS signal;

wherein

the CTS signal includes a first CTS section and a second CTS section,

the first CTS section including the first address indicating the first electronic device, and

the second CTS section including a second address indicating the second electronic device.

26. The method of claim 25 , wherein the RTS signal includes a first RTS section and a second RTS section,

the first RTS section including a third address indicating at least one electronic device, and

the second RTS section including the first address.

27. The method of claim 26 , wherein the third address is transmitted prior to the first address in the RTS signal.

28. The method of claim 26 , wherein the first address included in the first CTS section is set in reference to the address of the first address included in the second RTS section.

29. The method of claim 26 , wherein the third address indicates more than two electronic devices including the second electronic device.

30. The method of claim 25 , wherein the first address is received prior to the second address in the CTS signal.

31. A method for wireless communication, comprising:

receiving with receive circuitry a request to send (RTS) signal indicating a request to initiate data transmission;

transmitting a clear to send (CTS) signal to a first electronic device, the CTS signal is transmitted in response to the RTS signal;

wherein

the CTS signal includes a first CTS section and a second CTS section,

the first CTS section including the first address indicating the first electronic device, and

the second CTS section including a second address indicating the second electronic device.

32. The method of claim 31 , wherein the RTS signal includes a first RTS section and a second RTS section,

the first RTS section including a third address indicating at least one electronic device, and

the second RTS section including the first address.

33. The method of claim 32 , wherein the third address indicates more than two electronic devices including the second electronic device.

34. The method of claim 32 , wherein the third address is transmitted prior to the first address in the RTS signal.

35. The method of claim 32 , wherein the first address included in the first CTS section is set in reference to the address of the first address included in the second RTS section.

36. The method of claim 31 , wherein the first address is received prior to the second address in the CTS signal.

37. The method of claim 31 , wherein

the receive circuitry includes a plurality of antennas via which the RTS signal is received and the CTS signal is transmitted.

38. The method of claim 37 , wherein the number of the plurality of antennas is equal to three.

39. The method of claim 37 , wherein the plurality of antennas are array antennas via which signals are transmitted with special multiplexing.

40. The method of claim 37 , wherein the second device is a television and a plurality of streams are received via the plurality of antennas.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2021
From: WI-FI ONE, LLC
To: REDWOOD TECHNOLOGIES, LLC
Reel/Frame 058026/0232 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2021
From: CORTLAND CAPITAL MARKET SERVICES LLC
To: WI-FI ONE, LLC
Reel/Frame 058014/0725 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded May 23, 2018
From: WI-FI ONE, LLC
To: CORTLAND CAPITAL MARKET SERVICES LLC, AS COLLATERAL AGENT
Reel/Frame 046222/0786 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2018
From: SONY CORPORATION
To: WI-FI ONE, LLC
Reel/Frame 045853/0047 →
Priority Claims (1)
JP 2003-123280 · Apr 28, 2003 · national
Continuity (4)
Continuation 13410961 · Mar 2, 2012
Continuation 12621822 · Nov 19, 2009
Continuation 10821884 · Apr 12, 2004
Related Publication 20140112292A1 · Apr 24, 2014