Single transceiver architecture for a wireless network

• US 7,567,527 B2
• Filed: 04/04/2003
• Issued: 07/28/2009
• Est. Priority Date: 02/14/2003
• Status: Active Grant

• Current Assignee: Sony Interactive Entertainment LLC (Sony Group Corp.)
• Original Assignee: OnLive Incorporated
• Inventors: Perlman, Stephen G.
• Primary Examiner(s): Rao; Seema S
• Assistant Examiner(s): MURPHY, RHONDA L
• Application Number:
  US10/407,445
• Publication Number:
  US 20040160986A1
• Time in Patent Office: 2,307 Days
• Field of Search: None
• US Class Current: 370/315
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A network for wireless transmission of data includes a source access point, a destination device and a plurality of wireless repeaters that provide a transmission link between the source access point and the destination device. The plurality of access points each includes a single transceiver with separate transmitter and receiver sections operable to simultaneously transmit and receive data on different frequency channels. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Claims

1. A wireless network comprising:

a source access point operable to transmit a sequence of packets on a first frequency channel, packets of the sequence being transmitted during odd time intervals, the source access point not transmitting during even time intervals;

a destination device operable to receive the sequence of packets on a second frequency channel; and

a plurality of wireless repeaters to provide a transmission link between the source access point and the destination device, each of the wireless repeaters having a transceiver that includes transmitter and receiver sections respectively operable to receive and re-transmit data packets on different frequency channels, a first wireless repeater in the transmission link being configured to receive packets from the source access point during the odd time intervals and re-transmitting the packets during the even time intervals, the first wireless repeater not transmitting during the odd time intervals, a second wireless repeater in the transmission link being configured to receive packets from the first wireless repeater during the even time intervals and re-transmitting the packets during the odd time intervals, the second wireless repeater not transmitting during the even time intervals.

2. The wireless network of claim 1 wherein the transmitter section of each of the wireless repeaters is operable to change frequency channels.

3. The wireless network of claim 2 wherein the receiver section of each of the wireless repeaters operates on a fixed frequency channel.

4. The wireless network of claim 1 wherein the source access point transmits and receives on the first frequency channel and the destination device transmits and receives on the second frequency channel.

5. The wireless network of claim 4 wherein the first and second frequency channels are within a 2.4 Ghz frequency band.

6. The wireless network of claim 1 wherein the different frequency channels are adjacent frequency channels.

7. The wireless network of claim 1 wherein at least one of the wireless repeaters is configured to receive data packets on one frequency channel and to transmit the data packets on another frequency channel.

8. A wireless network comprising:

a source access point configured to transmit a sequence of packets only on a first frequency channel, packets of the sequence being transmitted during odd time intervals, the source access point not transmitting during even time intervals;

a destination device configured to receive the sequence of packets on a second frequency channel; and

a plurality of n, where n is an integer, wireless repeaters to provide a transmission link between the source access point and the destination device, each of the wireless repeaters having only a single transceiver, the single transceiver having transmitter and receiver sections respectively operable to receive and re-transmit data packets on different frequency channels, the transmitter and receiver sections each being further operable to change frequency channels, odd-numbered wireless repeaters only receiving packets during the odd time intervals and only re-transmitting the packets during the even time intervals, even-numbered wireless repeaters only receiving packets during the even time intervals and only re-transmitting the packets during the odd time intervals.

9. The wireless network of claim 8 wherein during transmission of the sequence from the source access point to the destination device, each of the wireless repeaters receives a data packet on one frequency channel and transmits the data packet on another frequency channel.

10. The wireless network of claim 8 wherein the transmitter and receiver sections of each of the wireless repeaters is operable to respectively transmit and receive the data packets on either first, second, or third frequency channels of a 2.4 GHZ frequency band in compliance with an 802.11x standard.

11. The wireless network of claim 8 wherein the source access point transmits and receives on the first frequency channel and the destination device transmits and receives on the second frequency channel.

12. The wireless network of claim 11 wherein the first and second frequency channels are within a 2.4 GHz frequency band.

13. The wireless network of claim 8 wherein the different frequency channels are adjacent frequency channels.

14. A wireless network comprising:

a source access point that transmits a sequence of data packets on a first frequency channel, the source access point staggering data transmissions such that each transmission time interval is immediately followed by a non-transmission time interval;

a destination device that receives the sequence of data packets on a second frequency channel; and

a plurality of wireless repeaters to provide a transmission link between the source access point and the destination device, each of the wireless repeaters having a transceiver that includes transmitter and receiver sections respectively operable to receive and re-transmit data packets on different frequency channels, the transmitter section of each wireless repeater being further operable to change frequency channels, each wireless repeater receiving packets during receiving time intervals and re-transmitting the one or more packets only during re-transmission time intervals, each of the re-transmission time intervals immediately following a corresponding one of the receiving time intervals, the re-transmission time intervals being staggered in accordance with the staggering of the data transmissions by the source access point.

15. The wireless network of claim 14 wherein a first wireless repeater in the transmission link only re-transmits during the non-transmission time intervals of the source access point.

16. The wireless network of claim 14 wherein the receiver section of each of the wireless repeaters operates on a fixed frequency channel.

17. The wireless network of claim 14 wherein each receiver section of the wireless repeaters operates on a frequency channel that is fixed and is different than that of any other receiver of the wireless repeaters.

18. The wireless network of claim 14 wherein the first and second frequency channels are within a 2.4 GHz frequency band.

19. The wireless network of claim 14 wherein the different frequency channels are adjacent frequency channels.

20. A wireless network comprising:

a source access point that transmits and receives data packets on first and second frequency channels, respectively, the source access point staggering data transmissions such that each transmission time interval is immediately followed by a non-transmission time interval;

a destination device that transmits and receives data packets on third and fourth frequency channels, respectively; and

a plurality of wireless repeaters to provide a transmission link between the source access point and the destination device, each of the wireless repeaters having only a single transceiver, the single transceiver having transmitter and receiver sections respectively operable to receive and re-transmit data packets on different frequency channels at a specified throughput of 5 Mbps or greater in a pipelined manner, the transmitter section of each wireless repeater being further operable to change frequency channels, each wireless repeater receiving packets during receiving time intervals and re-transmitting the one or more packets only during re-transmission time intervals, each of the re-transmission time intervals immediately following a corresponding one of the receiving time intervals, the re-transmission time intervals being staggered in accordance with the staggering of the data transmissions by the source access point.

21. The wireless network of claim 20 wherein a first wireless repeater in the transmission link only re-transmits during the non-transmission time intervals of the source access point.

22. The wireless network of claim 20 wherein the first and second frequency channels are within a 2.4 GHz frequency band.

23. The wireless network of claim 20 wherein the third frequency channel is the same as the fourth frequency channel.

24. The wireless network of claim 20 wherein each receiver section of the wireless repeaters operates on a frequency channel that is fixed and is different than that of any other receiver of the wireless repeaters.

25. The wireless network of claim 20 wherein the first and fourth frequency channels are identical.

26. A method comprising:

receiving, by a first repeater of a wireless network, data packets transmitted by a source access point on a first frequency channel at a specified throughput of 5 Mbps or greater in a pipelined manner, wherein data transmissions by the source access point are staggered such that each transmission time interval is immediately followed by a non-transmission time interval;

re-transmitting, by the first repeater, the data packets over the wireless network substantially at the specified throughput on a second frequency channel, each data packet being re-transmitted by the first repeater during an interval delayed by one interval from when the data packet was received, re-transmission by the first repeater only occurring during non-transmission time intervals of the source access point, the first repeater being one of a plurality of repeaters that provide a transmission link between the source access point and a destination device, the first repeater and each of the plurality of repeaters including a transceiver having separate transmitter and receiver sections operable to receive and re-transmit the data packets on different frequency channels.

27. The method of claim 26 further comprising:

changing frequency of the transmitter section of the first repeater from the second frequency channel to a third frequency channel.

28. The method of claim 27 wherein the first, second, and third frequency channels are within a 2.4 GHz frequency band.

29. The method of claim 26 wherein each of the repeaters receives the data packets on different frequency channels, with each data packet being re-transmitted over the wireless network during an interval delayed by one interval from when the data packet was received.

30. The method of claim 26 further comprising:

transmitting, by a last repeater in the transmission link, the data packets to the destination device on a third frequency channel.

31. The method of claim 26 wherein the source access point transmits and receives data packets on the first frequency channel.

32. The method of claim 30 wherein the destination device transmits and receives data packets on the third frequency channel.

33. The method of claim 30 wherein the destination device receives data packets on the third frequency channel and transmits data packets on a fourth frequency channel.