Control of radio links in a multiple carrier system

• US 8,599,771 B2
• Filed: 04/13/2010
• Issued: 12/03/2013
• Est. Priority Date: 04/15/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Gholmieh, Aziz, Zhang, Danlu, Sambhwani, Sharad Deepak, Kapoor, Rohit, Hou, Jilei, Mohanty, Bibhu Prasad, Ozturk, Ozcan, Bharadwaj, Arjun, Lee, Heechoon
• Primary Examiner(s): Chou, Albert T
• Application Number:
  US12/759,369
• Publication Number:
  US 20100271939A1
• Time in Patent Office: 1,330 Days
• Field of Search: 370/228, 370/329, 370/331, 370/338
• US Class Current: 370/329
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0096 Indication of changes in allocation
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

Methods, systems and apparatuses for controlling radio links in a multiple carrier wireless communication system are disclosed. A method can include aggregating control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers; establishing communication links for the anchor carrier and each secondary carrier; and controlling communication based on the anchor carrier.

Claims

1. A method for controlling radio links in a multiple carrier wireless communication system, the method comprising:

aggregating, by a processor, control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers;

establishing communication links for the anchor carrier and each secondary carrier according to at least one “

in sync”

indication comprising establishing a communication link for the anchor carrier before establishing any communication links for the secondary carriers, wherein the at least one “

in sync”

indication is derived based at least in part upon comparing one or more power control bits of each of the communication links for the anchor carrier and each secondary carrier with a threshold value within a period of time; and

controlling communication based on the anchor carrier.

2. The method of claim 1, wherein establishing the communication links comprises:

individually synchronizing each carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the carrier, each communication link being established when the first threshold number of “

in sync”

indications is received for the carrier.

3. The method of claim 2, further comprising:

receiving data on any established carrier.

4. The method of claim 2, further comprising:

receiving data on any established carrier only after a second threshold number of “

in sync”

indications is received for each of the carriers.

5. The method of claim 2, further comprising:

receiving data on any established carrier only after a second threshold number of “

in sync”

indications is received for all the carriers in aggregate.

6. The method of claim 1, wherein establishing the communication links comprises:

synchronizing the anchor carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the anchor carrier.

7. The method of claim 6, wherein one or more communication links of the secondary carriers is established when the first threshold number of “

in sync”

indications is received for the anchor carrier.

8. The method of claim 6, wherein all of the communication links are established when the first threshold number of “

in sync”

indications is received for the anchor carrier.

9. An apparatus for controlling radio links in a multiple carrier wireless communication system, the apparatus comprising:

a processor; and

memory in electronic communication with the processor programmed with instructions to;

aggregate control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers;

establish communication links for the anchor carrier and each secondary carrier according to at least one “

in sync”

indication comprising establishing a communication link for the anchor carrier before establishing any communication links for the secondary carriers, wherein the at least one “

in sync”

indication is derived based at least in part upon comparing one or more power control bits of each of the communication links for the anchor carrier and each secondary carrier with a threshold value within a period of time; and

control communication based on the anchor carrier.

10. The apparatus of claim 9, wherein the instructions to establish the communication links comprises:

instructions to individually synchronize each carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the carrier, each communication link being established when the first threshold number of “

in sync”

indications is received for the carrier.

11. The apparatus of claim 10, further comprising:

instructions to receive data on any established carrier.

12. The apparatus of claim 9, wherein the instructions to establish the communication links comprises:

instructions to synchronize the anchor carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the anchor carrier.

13. The apparatus of claim 12, wherein one or more communication links of the secondary carriers is established when the first threshold number of “

in sync”

indications is received for the anchor carrier.

14. An apparatus for controlling radio links in a multiple carrier wireless communication system, the apparatus comprising:

means for aggregating control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers;

means for establishing communication links for the anchor carrier and each secondary carrier according to at least one “

in sync”

indication comprising means for establishing a communication link for the anchor carrier before establishing any communication links for the secondary carriers, wherein the at least one “

in sync”

indication is derived based at least in part upon comparing one or more power control bits of each of the communication links for the anchor carrier and each secondary carrier with a threshold value within a period of time; and

means for controlling communication based on the anchor carrier.

15. The apparatus of claim 14, wherein the means for establishing the communication links comprises:

means for individually synchronizing each carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the carrier, each communication link being established when the first threshold number of “

in sync”

indications is received for the carrier.

16. The apparatus of claim 15, further comprising:

means for receiving data on any established carrier.

17. The apparatus of claim 14, wherein the means for establishing the communication links comprises:

means for synchronizing the anchor carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the anchor carrier.

18. The apparatus of claim 17, wherein one or more communication links of the secondary carriers is established when the first threshold number of “

in sync”

indications is received for the anchor carrier.

19. A computer program product for controlling radio links in a multiple carrier wireless communication system, comprising:

a non-transitory computer-readable storage medium comprising;

code for causing a computer to aggregate control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers;

code for causing the computer to establish communication links for the anchor carrier and each secondary carrier according to at least one “

in sync”

indication comprising establishing a communication link for the anchor carrier before establishing any communication links for the secondary carriers, wherein the at least one “

in sync”

indication is derived based at least in part upon comparing one or more power control bits of each of the communication links for the anchor carrier and each secondary carrier with a threshold value within a period of time; and

code for causing the computer to control communication based on the anchor carrier.

20. The computer program product of claim 19, wherein the code for causing the computer to establish the communication links comprises:

code for individually synchronizing each carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the carrier, each communication link being established when the first threshold number of “

in sync”

indications is received for the carrier.

21. The computer program product of claim 19, further comprising:

code for causing the computer to receive data on any established carrier.

22. The computer program product of claim 19, wherein the code for causing the computer to establish the communication links comprises:

code for synchronizing the anchor carrier with a physical channel by receiving a first threshold number of physical layer “

in sync”

indications for the anchor carrier.

23. The computer program product of claim 22, wherein one or more communication links of the secondary carriers is established when the first threshold number of “

in sync”

indications is received for the anchor carrier.