Granted Patent B2

US 8,699,543 · App. 12/860,624 · Granted Apr 15, 2014

Abstract

Claims (73)

1. A method for operating a user equipment in a wireless communication system, the method comprising:

receiving a downlink message, wherein said downlink message includes a first control channel element;

determining a first index using the location of said first control channel element;

determining a second index from at least one of said first index and another downlink message;

determining a first orthogonal resource using said first index;

determining a second orthogonal resource using said second index;

spreading an uplink message using said first orthogonal resource to form a first spread signal;

spreading said uplink message using said second orthogonal resource to form a second spread signal;

transmitting said first spread signal using a first antenna; and

transmitting said second spread signal using a second antenna.

2. The method of claim 1 , wherein said determining a second index uses the location of a second control channel element of said downlink message.

3. The method of claim 1 , wherein said determining a second index further comprises:

obtaining said second index from said other downlink message.

4. The method of claim 1 , wherein said determining a second index uses the location of said first control channel element.

5. The method of claim 1 , wherein said determining a second index uses said first index.

6. A method for operating a user equipment in a wireless communication system, the method comprising:

receiving a downlink message by a wireless device from a base station;

determining a plurality of indices using said downlink message and another downlink message;

determining a plurality of orthogonal resources using said plurality of indices;

generating a plurality of orthogonal signals by applying said plurality of orthogonal resources to an uplink message; and

transmitting said plurality of orthogonal signals from said wireless device to said base station.

7. The method of claim 6 , wherein said transmitting said plurality of orthogonal signals from said wireless device to said base station further comprises:

using a plurality of antennas of said wireless device to transmit said plurality of orthogonal signals.

8. The method of claim 6 , wherein said determining a plurality of indices using said downlink message further comprises:

determining a first index of said plurality of indices using the location of a first control channel element of a plurality of control channel elements, wherein said downlink message includes said plurality of control channel elements; and

determining the other indices of said plurality of indices using another downlink message.

9. The method of claim 6 , wherein said determining a plurality of indices using said downlink message further comprises:

determining a first index of said plurality of indices using the location of a first control channel element of a plurality of control channel elements, wherein said downlink message includes said plurality of control channel elements; and

determining the other indices of said plurality of indices using the location of said first control channel element of said plurality of control channel elements.

10. The method of claim 6 , wherein said determining a plurality of indices using said downlink message further comprises:

determining a first index of said plurality of indices using the location of a first control channel element of a plurality of control channel elements, wherein said downlink message includes said plurality of control channel elements; and

determining the other indices of said plurality of indices using said first index of said plurality of indices.

11. A device in a wireless communication system, comprising:

a processor coupled to a memory containing processor-executable instructions;

a receiver and a transmitter coupled to said processor;

wherein said receiver is operable to:

receive a downlink message from a base station;

wherein said processor is operable to:

derive a first index using the location of a first control channel element of said downlink message;

derive a second index from at least one of said first index and another downlink message;

determine a first orthogonal resource using said first index;

determine a second orthogonal resource using said second index;

generate a first orthogonal signal by applying said first orthogonal resource to an uplink message;

generate a second orthogonal signal by applying said second orthogonal resource to said uplink message; and

wherein said transmitter is operable to:

transmit said first and said second orthogonal signals to said base station.

12. The device of claim 11 , wherein said processor is further operable to derive said second index using the location of a second control channel element of said downlink message.

13. The device of claim 11 , wherein said processor is further operable to derive said second index by obtaining said second index using said other downlink message.

14. The device of claim 11 , wherein said processor is further operable to derive said second index using the location of said first control channel element.

15. The device of claim 11 , wherein said processor is further operable to derive said second index using said first index.

16. The device of claim 11 , wherein said transmitter is further operable to:

transmit said first orthogonal signal using a first antenna; and

transmit said second orthogonal signal using a second antenna.

17. A system of wireless communication, comprising:

a base station;

a wireless device communicatively linked to said base station, wherein said wireless device receives a downlink message from said base station;

derives a first index using a first control channel element of said downlink message;

derives a second index from at least one of said first index and another downlink message;

determines a first orthogonal resource using said first index;

determines a second orthogonal resource using said second index;

generates a first orthogonal signal by applying said first orthogonal resource to an uplink message;

generates a second orthogonal signal by applying said second orthogonal resource to said uplink message;

transmits said first orthogonal signal from a first antenna to said base station; and

transmits said second orthogonal signal from a second antenna to said base station.

18. The system of claim 17 , wherein the number of control channel elements of said downlink message is greater than or equal to the number of orthogonal resources assigned to said wireless device.

19. The system of claim 17 , wherein said base station changes the number of control channel elements of said downlink message to match the number of orthogonal resources assigned to said wireless device.

20. The system of claim 17 , wherein said base station allocates a reserved control channel element of said downlink message to match the number of orthogonal resources assigned to said wireless device.

21. The system of claim 17 , wherein said wireless device derives said second index using a second control channel element of said downlink message.

22. The system of claim 17 , wherein said wireless device derives said second index using said other downlink message.

23. The system of claim 17 , wherein said wireless device changes the number of orthogonal resources to match the number of control channel elements of said downlink message assigned by said base station.

24. The system of claim 17 , wherein said wireless device changes the transmit diversity mode of said wireless device to match the number of control channel elements of said downlink message assigned by said base station.

25. The system of claim 17 , wherein said base station assigns to said wireless device an offset from said first control channel element to a second control channel element both of said downlink message, wherein said downlink message is a physical downlink control channel message, and the selection of said second control channel element is limited to those control channel elements of said downlink message corresponding to a physical uplink control channel resource transmitted in the same physical uplink control channel resource block.

26. The system of claim 17 , wherein said wireless device derives said second index using said first index.

Assignments (14)