IP Library › Granted Patent US 8,971,269
Granted Patent B2
US 8,971,269 · App. 13/620,418 · Granted Mar 3, 2015

Uplink control signal design for wireless system

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Quick Facts
Patent No.
US 8,971,269
App. No.
13/620,418
Granted
Mar 3, 2015
Kind
B2
Abstract

A method for an SS to perform network entry in a multi-carrier wireless environment that has a primary carrier and at least one secondary carrier associated with a BS, the method comprising: a. sensing a carrier in an area serviced by the BS; b. determining if the carrier is a primary carrier or a secondary carrier; and c. performing the network entry if the determining establishes that the sensed carrier is a primary carrier and not a secondary carrier.

Claims (38)

1. A method in a mobile station, the method comprising:

establishing communication in a multi-carrier wireless communication system using a primary carrier;

receiving a first downlink control signaling via the primary carrier, the first downlink control signaling assigning at least one secondary carrier, the secondary carrier being different from the primary carrier;

transmitting a channel quality indication via the primary carrier using an uplink control channel, the channel quality indication corresponding to the secondary carrier;

receiving timing information corresponding to the primary carrier; and

transmitting uplink data via the secondary carrier, the timing of the uplink transmission based on the timing information corresponding to the primary carrier.

2. The method of claim 1 , wherein the primary carrier corresponds to the carrier used for network entry.

3. The method of claim 1 , wherein the primary carrier contains a synchronization channel.

4. The method of claim 1 , further comprising receiving a second control signaling via the primary carrier, the second control signaling changing the primary carrier.

5. The method of claim 4 , wherein both primary carriers are associated with the same base station.

6. The method of claim 1 , further comprising receiving a message assigning the control channel.

7. The method of claim 1 , wherein the multi-carrier wireless communication system employs orthogonal frequency division multiplexing.

8. An apparatus comprising:

a transceiver; and

a processor configured to:

establish communication in a multi-carrier wireless communication system using a primary carrier;

receive a first downlink control signaling via the primary carrier, the first downlink control signaling assigning at least one secondary carrier, the secondary carrier being different from the primary carrier;

transmit a channel quality indication via the primary carrier using an uplink control channel, the channel quality indication corresponding to the secondary carrier;

receive timing information corresponding to the primary carrier; and

transmit uplink data via the secondary carrier, the timing of the uplink transmission based on the timing information corresponding to the primary carrier.

9. The apparatus of claim 8 , wherein the primary carrier corresponds to the carrier used for network entry.

10. The apparatus of claim 8 , wherein the primary carrier contains a synchronization channel.

11. The apparatus of claim 8 , the processor further configured to receive a second control signaling via the primary carrier, the second control signaling changing the primary carrier.

12. The apparatus of claim 11 , wherein both primary carriers are associated with the same base station.

13. The apparatus of claim 8 , the processor further configured to receive a message assigning the control channel.

14. The apparatus of claim 8 , wherein the multi-carrier wireless communication system employs orthogonal frequency division multiplexing.

15. A non-transitory machine-readable medium with a set of instructions stored thereon, which when executed, cause a processor to perform operations comprising:

establishing communication in a multi-carrier wireless communication system using a primary carrier;

receiving a first downlink control signaling via the primary carrier, the first downlink control signaling assigning at least one secondary carrier, the secondary carrier being different from the primary carrier;

transmitting a channel quality indication via the primary carrier using an uplink control channel, the channel quality indication corresponding to the secondary carrier;

receiving timing information corresponding to the primary carrier; and

transmitting uplink data via the secondary carrier, the timing of the uplink transmission based on the timing information corresponding to the primary carrier.

16. The non-transitory machine-readable medium of claim 15 , wherein the primary carrier corresponds to the carrier used for network entry.

17. The non-transitory machine-readable medium of claim 15 , wherein the primary carrier contains a synchronization channel.

18. The non-transitory machine-readable medium of claim 15 , the operations further comprising receiving a second control signaling via the primary carrier, the second control signaling changing the primary carrier.

19. The non-transitory machine-readable medium of claim 18 , wherein both primary carriers are associated with the same base station.

20. The non-transitory machine-readable medium of claim 15 , the operations further comprising receiving a message assigning the control channel.

21. The non-transitory machine-readable medium of claim 15 , wherein the multi-carrier wireless communication system employs orthogonal frequency division multiplexing.