IP Library Granted Patent US 8,014,828
Granted Patent B2
US 8,014,828 · App. 12/026,818 · Granted Sep 6, 2011

Method and device for transmitting signals in a wireless communication system and method and device for receiving signals in a wireless communication system

Assignee: Sony Deutschland GmbH
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Quick Facts
Patent No.
US 8,014,828
App. No.
12/026,818
Granted
Sep 6, 2011
Kind
B2
Abstract

The present invention relates to a transmitting device ( 1 ) for transmitting signals in a wireless communication system, wherein said signals are transmitted in consecutive frames ( 23 a, 23 b, 23 c ), each frame comprising a beacon (BSF) and data frames (DF), said transmitting device ( 1 ) comprising a first set of narrow beam antennas ( 2 a, 2 b, 2 c ), each narrow beam antenna ( 2 a, 2 b, 2 c ) having a different beaming direction corresponding to one of a number of different transmission paths (P 0 , P 1 , P 2 ) from said transmitting device ( 1 ) to a receiving device, and a first control means ( 5 ) adapted to control the transmission of said frames ( 23 a, 23 b, 23 c ), whereby the data frames (DF) of respectively two consecutive frames ( 23 a, 23 b, 23 c ) are transmitted via different narrow beam antennas ( 2 a, 2 b, 2 c ). The present invention further relates to a receiving device ( 10 ) for receiving signals in a wireless communications system as well as to a method for transmitting signals in a wireless communications system and to a method for receiving signals in a wireless communication system.

Claims (74)

1. A transmitting device for transmitting signals in a wireless communication system, said signals being transmitted in consecutive frames, each frame comprising a beacon and data frames, said transmitting device comprising:

a transmitter set of narrow beam antennas, each narrow beam antenna having a different beaming direction corresponding to one of a number of paths from said transmitting device to a receiving device, a set of said number of paths being stored as a list of paths to be used for transmission; and

a transmitter control unit configured to control a sequence of transmission of each of said frames based on the list of paths to be used for transmission and to update the list of paths to be used for transmission according to a monitored channel quality of the paths of the list of paths, said sequence of transmission including sequential transmission of each of said frames over a respective path of the list of paths in accordance with the stored list of paths.

2. The transmitting device according to claim 1 , further comprising

a beacon generator configured to generate the beacon of each frame for estimating a path quality.

3. The transmitting device according to claim 1 , further comprising

a transmitter memory that stores the list of paths to be used for transmission.

4. The transmitting device according to claim 3 , wherein

the transmitter control unit is further configured to update the list of paths stored in the transmitter memory depending on a change of path quality.

5. The transmitting device according to claim 4 , wherein

the transmitter control unit is further configured to remove a path having a decreased path quality from the list of paths stored in the transmitter memory.

6. The transmitting device according to claim 4 , wherein

the transmitter control unit is further configured to add a path having an increased path quality to the list of paths stored in the transmitter memory.

7. The transmitting device according to claim 1 , wherein

the transmitter control unit is further configured to send the beacon and the data frames of a frame via different narrow beam antennas.

8. The transmitting device according to claim 1 , wherein

the transmitter control unit is further configured to send at least one additional beacon between two frames.

9. A receiving device for receiving signals in a wireless communication system, said signals being received in consecutive frames, each frame comprising a beacon and data frames, said receiving device comprising:

a receiver set of narrow beam antennas, each narrow beam antenna having a different beaming direction corresponding to one of a number of paths from a transmitting device to said receiving device, a set of said number of paths being stored as a list of paths to be used for reception; and

a receiver control unit configured to control a sequence of reception of each of said frames based on the list of paths to be used for reception and to update the list of paths to be used for reception according to a monitored channel quality of the paths of the list of paths, said sequence of reception including sequential reception of each of said frames over a respective path of the list of paths in accordance with the stored list of paths.

10. The receiving device according to claim 9 , further comprising

a path estimator configured to estimate a path quality based on at least one received beacon.

11. The receiving device according to claim 9 , further comprising

a receiver memory that stores the list of paths to be used for reception.

12. The receiving device according to claim 11 , wherein

the receiver control unit is further configured to update the list of paths stored in the receiver memory depending on a change of path quality.

13. The receiving device according to claim 12 , wherein

the receiver control unit is further configured to remove a path having a decreased path quality from the list of paths stored in the receiver memory.

14. The receiving device according to claim 12 , wherein

the receiver control unit is further configured to add a path having an increased path quality to the list of paths stored in the receiver memory.

15. The receiving device according to claim 9 , wherein

the receiver control unit is further configured to receive the beacon and the data frames of a frame via different narrow beam antennas.

16. The receiving device according to claim 9 , wherein

the receiver control unit is further configured to receive at least one additional beacon between two frames.

17. A communication system comprising:

a transmitting device, including

a transmitter set of narrow beam antennas, each narrow beam antenna having a different beaming direction corresponding to one of a number of paths from said transmitting device to a receiving device, a set of said number of paths being stored as a list of paths to be used for transmission, and

a transmitter control unit configured to control a sequence of transmission of each of said frames based on the list of paths to be used for transmission and to update the list of paths to be used for transmission according to a monitored channel quality of the paths of the list of paths to be used for transmission, said sequence of transmission including sequential transmission of each of said frames over a respective path of the list of paths to be used for transmission in accordance with the stored list of paths to be used for transmission; and

said receiving device, including

a receiver set of narrow beam antennas, each narrow beam antenna having a different beaming direction corresponding to one of a number of paths from a transmitting device to said receiving device, a set of said number of paths being stored as a list of paths to be used for reception, and

a receiver control unit configured to control a sequence of reception of each of said frames based on the list of paths to be used for reception and to update the list of paths to be used for reception according to a monitored channel quality of the paths of the list of paths to be used for reception, said sequence of reception including sequential reception of each of said frames over a respective path of the list of paths to be used for reception in accordance with the stored list of paths to be used for reception.

18. A method for transmitting signals in a wireless communication system, said signals being transmitted in consecutive frames, each frame comprising a beacon and data frames, said transmitting method comprising:

storing a set of a number of paths as a list of paths to be used for transmission, the paths provided by a transmitter set of narrow beam antennas, each narrow beam antenna having a different beaming direction corresponding to one of a number of paths from a transmitting device to a receiving device;

controlling a sequence of transmission of each of said frames based on the list of paths to be used for transmission, said sequence of transmission including sequential transmission of each of said frames over a respective path of the list of paths in accordance with the stored list of paths; and

updating the list of paths to be used for transmission according to a monitored channel quality of the paths of the list of paths.

19. The method according to claim 18 , said method further comprising

generating the beacon of each frame for estimating a path quality.

20. The method according to claim 18 , said method further comprising

storing the list of paths to be used for transmission in a transmitter memory.

21. The method according to claim 20 , said method further comprising

updating the list of paths stored in the transmitter memory depending on a change of path quality.

22. The method according to claim 21 , said method further comprising

removing a path having a decreased path quality from the list of paths stored in the transmitter memory.

23. The method according to claim 21 , said method further comprising

adding a path having an increased path quality to the list of paths stored in the transmitter memory.

24. The method according to claim 18 , said method further comprising

sending the beacon and the data frames of a frame via different narrow beam antennas.

25. The method according to claim 18 , said method further comprising sending at least one additional beacon between two frames.

26. A method for receiving signals in a wireless communication system, said signals being received in consecutive frames, each frame comprising a beacon and data frames, said receiving method comprising:

storing a set of a number of paths as a list of paths to be used for reception, the paths provided by a receiver set of narrow beam antennas, each narrow beam antenna having a different beaming direction corresponding to one of a number of paths from a transmitting device to a receiving device;

controlling a sequence of reception of each of said frames based on the list of paths to be used for reception, said sequence of reception including sequential reception of each of said frames over a respective path of the list of paths in accordance with the stored list of paths; and

updating the list of paths to be used for reception according to a monitored channel quality of the paths of the list of paths.

27. The method according to claim 26 , said method further comprising

estimating a path quality based on at least one received beacon.

28. The method according to claim 26 , said method further comprising storing the list of paths to be used for reception in a receiver memory.

29. The method according to claim 28 , said method further comprising

updating the list of paths stored in the receiver memory depending on a change of path quality.

30. The method according to claim 29 , said method further comprising

removing a path having a decreased path quality from the list of paths stored in the receiver memory.

31. The method according to claim 29 , said method further comprising

adding a path having an increased path quality to the list of paths stored in the receiver memory.

32. The method according to claim 26 , said method further comprising

receiving the beacon and the data frames of a frame via different narrow beam antennas.

33. The method according to claim 26 , said method further comprising receiving at least one additional beacon between two frames.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 6, 2008
From: KRAEMER, OLIVER; WULLICH, VOLKER
To: SONY DEUTSCHLAND GMBH
Reel/Frame 020471/0896 →
Priority Claims (1)
EP 07105275 · Mar 29, 2007 · regional
Continuity (1)
Related Publication 20080242251A1 · Oct 2, 2008