Method and system for obtaining actual power headroom of carrier of UE

• US 20120300703A1
• Filed: 12/24/2010
• Published: 11/29/2012
• Est. Priority Date: 10/29/2010
• Status: Abandoned Application

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Wang, Man
• Application Number:
  US13/522,521
• Publication Number:
  US 20120300703A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04W 52/34 TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
• CPC Class Codes: H04W 52/365 Power headroom reporting

Abstract

A method for obtaining actual Power Headroom (PHR) of a carrier of a User Equipment (UE) is provided by the present disclosure. The UE transmits the Power Headroom of the carrier corresponding to the UE in the scenario of carrier aggregation to a network side through the interaction message. After processing the received interaction message, the network side obtains the actual PHR of the carrier corresponding to the UE. A system for obtaining actual PHR of a carrier of a User Equipment (UE) is provided by the present disclosure accordingly. With the present disclosure, the network side can effectively obtain the actual PHR of the carrier of the UE in the scenario of carrier aggregation, thus it is convenient for the network side to make the relevant decision and the system performance is improved.

Claims

1. A method for obtaining actual Power Headroom (PHR) of a carrier of a User Equipment (UE), comprising:

reporting, by a UE, a PHR value of a carrier corresponding to the UE to a network side through a interaction message; and

processing, by the network side, the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE.

2. The method according to claim 1, wherein the PHR value reported by the UE is a PHR value of a Primary Component Carrier (PCC) or a PHR value of each carrier.

3. The method according to claim 2, wherein reporting the PHR value of the carrier by the UE comprises:

reporting, by the UE, only the PHR value of the carrier;

or

reporting, by the UE, the PHR value of the carrier, as well as PHR values of all carriers relevant with the carrier.

4. The method according to claim 1, wherein the processing the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE comprises:

subtracting, by the network side, a corresponding Maximum Output Power (MPR) value from the PHR value reported by the UE to obtain the actual PHR value of the carrier corresponding to the UE.

5. The method according to claim 4, wherein the MPR value is an MPR value preset by the network side, or an MPR value reported by the UE through the interaction message.

12. The method according to claim 2, wherein the processing the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE comprises:

subtracting, by the network side, a corresponding Maximum Output Power (MPR) value from the PHR value reported by the UE to obtain the actual PHR value of the carrier corresponding to the UE.

13. The method according to claim 3, wherein the processing the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE comprises:

subtracting, by the network side, a corresponding Maximum Output Power (MPR) value from the PHR value reported by the UE to obtain the actual PHR value of the carrier corresponding to the UE.

14. The method according to claim 12, wherein the MPR value is an MPR value preset by the network side, or an MPR value reported by the UE through the interaction message.

15. The method according to claim 13, wherein the MPR value is an MPR value preset by the network side, or an MPR value reported by the UE through the interaction message.

6. A system for obtaining actual Power Headroom (PHR) of a carrier of a User Equipment (UE), comprising:

a network side and a UE;

wherein;

the network side is configured to;

receive a PHR value of a carrier corresponding to the UE, which is reported by the UE through a interaction message; and

process the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE; and

the UE is configured to report the PHR value of the carrier corresponding to the UE to the network side through the interaction message.

7. The system according to claim 6, wherein the PHR value reported by the UE is a PHR value of a Primary Component Carrier (PCC) or a PHR value of each carrier.

8. The system according to claim 7, wherein the UE reporting the PHR value of the carrier comprises:

the UE reports only the PHR value of the carrier;

or

the UE reports the PHR value of the carrier, as well as PHR values of all carriers relevant with the carrier.

9. The system according to claim 6, wherein the network side processing the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE comprises:

the network side subtracts a corresponding Maximum Output Power (MPR) value from the PHR value reported by the UE to obtain the actual PHR value of the carrier corresponding to the UE.

10. The system according to claim 9, wherein,

the UE is further configured to report an MPR value through the interaction message.

11. The system according to claim 9, wherein,

the network side is further configured to preset an MPR value.

16. The system according to claim 7, wherein the network side processing the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE comprises:

the network side subtracts a corresponding Maximum Output Power (MPR) value from the PHR value reported by the UE to obtain the actual PHR value of the carrier corresponding to the UE.

17. The system according to claim 8, wherein the network side processing the PHR value reported by the UE to obtain an actual PHR value of the carrier corresponding to the UE comprises:

the network side subtracts a corresponding Maximum Output Power (MPR) value from the PHR value reported by the UE to obtain the actual PHR value of the carrier corresponding to the UE.

18. The system according to claim 16, wherein,

the UE is further configured to report an MPR value through the interaction message.

19. The system according to claim 17, wherein,

the UE is further configured to report an MPR value through the interaction message.

20. The system according to claim 16, wherein,

the network side is further configured to preset an MPR value.