COEXISTENCE AND COLLOCATION OF REMOTE NETWORK AND LOCAL NETWORK RADIOS

• US 20090225717A1
• Filed: 03/03/2009
• Published: 09/10/2009
• Est. Priority Date: 03/10/2008
• Status: Active Grant

• Current Assignee: Marvell Asia Pte Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Inventors: Banerjea, Raja
• Granted Patent: US 8,345,607 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A coexistent communication system of a first network device includes a remote network radio. The remote network radio has a remote transmission distance, operates based on remote network protocols, and communicates with a base station using a first communication link corresponding to a first frequency band. A local network radio has a local transmission distance and is collocated with the remote network radio. The local network radio operates based on local network protocols that are different than the remote network protocols and communicates with a second network device using a second communication link corresponding to a second frequency band. A control module at least one of schedules communication on the first communication link and the second communication link and adjusts a transmission parameter of one of the remote network radio and the local network radio. Transmission distance of the remote network radio is greater than transmission distance of the local network radio.

Claims

1. A coexistent communication system of a first network device comprising:

a remote network radio that has a remote transmission distance, that operates based on remote network protocols, and that communicates with a base station using a first communication link corresponding to a first frequency band;

a local network radio that has a local transmission distance, that is collocated with the remote network radio, that operates based on local network protocols that are different than the remote network protocols, and that communicates with a second network device using a second communication link corresponding to a second frequency band; and

a control module that at least one of schedules communication on the first communication link and the second communication link and adjusts a transmission parameter of one of the remote network radio and the local network radio,

wherein the remote transmission distance of the remote network radio is greater than the local transmission distance of the local network radio.

2. The coexistent communication system of claim 1 wherein the first frequency band includes a Federal Communication Commission band and the second band includes an Industrial, Scientific and Medical band.

3. The coexistent communication system of claim 1 wherein the remote network radio communicates with the base station using a first channel,

wherein the local network radio communicates with the second network device using a second channel, and

wherein the local network radio signals the second network device to communicate with the first network device using a third channel that is different than the second channel based on the remote network radio using the first channel.

4. The coexistent communication system of claim 1 wherein the remote network radio communicates with the base station using a first channel,

wherein the local network radio communicates with the second network device using a second channel, and

wherein the local network radio communicates with the second network device using a third channel with a frequency that is higher than a frequency of the second channel when the frequency of the second channel is higher than the frequency of the first channel.

5. The coexistent communication system of claim 1 wherein the remote network radio communicates with the base station using a first channel,

wherein the local network radio communicates with the second network device using a second channel, and

wherein the local network radio communicates with the second network device using a third channel with a frequency that is lower than a frequency of the second channel when the frequency of the second channel is lower than the frequency of the first channel.

6. The coexistent communication system of claim 1 wherein the control module permits the local network radio to receive packets from the second network device when the remote network radio is receiving packets from the base station.

7. The coexistent communication system of claim 1 wherein the control module permits the local network radio to transmit packets to the second network device when the remote network radio is transmitting packets to the base station.

8. The coexistent communication system of claim 1 wherein the control module prevents the remote network radio from transmitting packets to the base station when the local network radio is receiving packets from the second network device.

9. The coexistent communication system of claim 1 wherein the control module determines precedent between the remote network radio and the local network radio based on quality of service values for the remote network radio and for the local network radio.

10. The coexistent communication system of claim 1 wherein the control module prevents the local network radio from transmitting packets to the second network device when the remote network radio receives packets from the base station.

11. The coexistent communication system of claim 1 wherein the local network radio communicates with the second network device based on an activity report that indicates communication between the remote network radio and the base station.

12. The coexistent communication system of claim 1 wherein the local network radio receives packets from the second network device based on reception of a request-to-send packet from the second network device and status of the remote network radio.

13. The coexistent communication system of claim 12 wherein the local network radio receives the request-to-send packet when the remote network radio is receiving remote network packets and does not receive the request-to-send packet when the remote network radio is transmitting remote network packets.

14. The coexistent communication system of claim 13 wherein the local network radio refrains from transmitting a clear-to-send signal when the request-to-send signal is received.

15. The coexistent communication system of claim 13 wherein the local network radio refrains from transmitting a clear-to-send signal when the remote network radio is at least one of transmitting and receiving remote network packets.

16. The coexistent communication system of claim 12 wherein the local network radio transmits a clear-to-send signal to the second network device based on whether the remote network radio is at least one of transmit and receive remote network packets within a predetermined period of time.

17. The coexistent communication system of claim 1 further comprising a coexistent interface connected between the remote network radio and the local network radio,

wherein the remote network radio communicates with the base station based on a permission signal received from the local network radio via the coexistent interface.

18. The coexistent communication system of claim 1 further comprising a coexistent interface connected between the remote network radio and the local network radio,

wherein the local network radio communicates with the second network device based on a permission signal received from the remote network radio via the coexistent interface.

19. The coexistent communication system of claim 1 wherein one of the remote network radio and the local network radio adjusts a transmission power level based on a communication parameter of the other one of the remote network radio and the local network radio.

20. The coexistent communication system of claim 1 wherein the remote network radio and the local network radio are implemented on the same integrated circuit.