Method and System for Discontinuous Reception Operation for Long Term Evolution Advanced Carrier Aggregation

• US 20110294491A1
• Filed: 06/15/2010
• Published: 12/01/2011
• Est. Priority Date: 06/15/2009
• Status: Abandoned Application

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: McBeath, Sean, Yu, Yi, Earnshaw, Andrew Mark, Heo, Youn Hyoung, Fong, Mo-Han, Cai, Zhijun
• Application Number:
  US12/811,315
• Publication Number:
  US 20110294491A1
• Time in Patent Office: Days
• US Class Current: 455/422.1
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method for discontinuous reception operation for carrier aggregation comprising: receiving a first set of discontinuous reception parameters for a first carrier and a limited or different set of discontinuous reception parameters for a second carrier; and configuring discontinuous reception parameters on the first carrier and second carrier.

Claims

1. A method for configuring a carrier for a user equipment in a wireless network, the user equipment supporting multiple carriers, the method comprising:

a. receiving, by the user equipment, signaling via radio resource signaling, said signaling providing information for the carrier, wherein the information includes a logical index for the carrier;

b. configuring, by the user equipment, the carrier according to the received information.

2. The method of claim 1, wherein the information comprises at least one of:

a. frequency of the carrier;

b. bandwidth of the carrier;

c. discontinuous reception parameters of the carrier;

or

d. control channel support.

3. The method of claim 1, further comprising receiving additional signaling to enable or disable reception of the carrier.

4. The method of claim 3, wherein the additional signaling includes information relating to the logical index of the carrier.

5. The method of claim 2, further comprising enabling or disabling reception of the carrier based on discontinuous reception parameters configured for the carrier.

6. The method of claim 2, wherein the control channel support indicates whether control channel reception should be enabled for the carrier.

7. The method of claim 2, wherein the control channel support indicates a second carrier, the second carrier contains control information corresponding to the carrier.

8. The method of claim 7, further comprising disabling, by the user equipment, reception of the control information corresponding to the carrier when reception of the carrier is disabled.

9. The method of claim 8, wherein the control information corresponding to the carrier is transmitted on a different carrier to the carrier transmitting the packet data.

10. A user equipment comprising:

a communications subsystem,

wherein the communications subsystem is configured to perform the method of claim 1.

21. The method of claim 8, wherein disabling, by the user equipment, reception of the control information comprises stopping, by the user equipment, monitoring a physical downlink control channel (PDCCH) associated with the carrier.

11. A method of transmitting control information corresponding to a carrier among a plurality of carriers, the method comprising:

determining an activation time of the carrier; and

transmitting control information corresponding to the carrier prior to the activation time.

12. The method of claim 11, wherein the control information comprises at least one of:

a. Channel Quality Indicator (CQI);

b. Precoding Matrix Indicator (PMI);

c. Rank Indicator (RI);

or

d. Sounding Reference Symbol (SRS).

13. The method of claim 11, wherein the determination of an activation time of the carrier comprises at least one of:

a. receiving a signaling message to enable reception of the carrier; and

b. a time corresponding to the start of the Active time of the carrier.

14. The method of claim 11, wherein the plurality of carriers are determined based on receiving at least one allocation signaling message.

15. A network element comprising:

a communications subsystem,

wherein the communications subsystem is configured to perform the method of claim 11.

16. A method of operating a user equipment in a wireless network, the user equipment supporting multiple carriers, the method comprising:

receiving, by the user equipment, a disable command control element for a carrier; and

discontinuing, by the user equipment, transmission of the control information corresponding to the carrier after receiving the disable command control element.

17. The method of claim 16, wherein the reception of the carrier is disabled based on receiving a signaling message.

18. The method of claim 16, wherein the reception of the carrier is disabled based on the discontinuous reception operation configured for the carrier.

19. The method of claim 16, wherein the plurality of carriers are determined based on receiving an allocation signaling message.

20. A user equipment comprising:

a communications subsystem,

wherein the communications subsystem is configured to perform the method of claim 16.

22. The method of claim 16, further comprising stopping, by the user equipment, monitoring a physical downlink control channel (PDCCH) associated with the carrier when the PDCCH is transmitted on the carrier after receiving the disable command control element.

23. The method of claim 16, further comprising stopping, by the user equipment, monitoring a physical downlink control channel (PDCCH) associated with the carrier when the PDCCH is transmitted on another carrier different from the carrier after receiving the disable command control element.