METHOD AND DEVICE FOR REPORTING MAXIMUM POWER OF CARRIER IN CARRIER AGGREGATION SCENARIO

• US 20130215824A1
• Filed: 09/23/2011
• Published: 08/22/2013
• Est. Priority Date: 11/12/2010
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Wang, Jian, Huang, Yada, Du, Zhongda
• Granted Patent: US 8,897,226 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• 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
• CPC Class Codes: H04W 72/00 Local resource management

Abstract

A method and apparatus for reporting a maximum carrier power in a carrier aggregation scenario are disclosed. The method includes: a user equipment (UE) encapsulating a particular power headroom (PH) of an activated uplink component carrier (UL CC) and a particular maximum output power of a physical channel of the activated UL CC into a same power headroom report (PHR) and reporting the PHR to a base station (eNB). The method enables the eNB to acquire the power situation of the UE in time so as to perform scheduling more accurately.

Claims

1. A method for reporting a maximum carrier power in a carrier aggregation scenario, comprising:

a user equipment (UE) encapsulating a particular power headroom (PH) of an activated uplink component carrier (UL CC) and a particular maximum output power of a physical channel of the activated UL CC into a same power headroom report (PHR) and reporting the PHR to a base station (eNB).

2. The method according to claim 1, wherein,

the step of the UE encapsulating the particular PH of the activated UL CC and the particular maximum output power of the physical channel of the activated UL CC into a same PHR and reporting the PHR to the eNB comprises:

the UE reporting a particular maximum output power of the physical channel of all activated UL CCs.

3. The method according to claim 2, wherein,

a cell where the UL CC locates comprises a primary cell and a secondary cell;

the step of the UE reporting the particular maximum output power of the physical channel of all activated UL CCs comprises;

the UE, for the activated UL CC in the primary cell, in a transmission mode that a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH) are transmitted at the same time, reporting a maximum output power of the physical channel which is used for calculating a type 1PH of the UL CC and a maximum output power of the physical channel which is used for calculating a type 2PH of the UL CC;

in a transmission mode that the PUCCH and the PUSCH are transmitted at different times, reporting a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC; and

the UE, for the activated UL CC in the secondary cell, in a transmission mode that the PUCCH and the PUSCH are transmitted at the same time or at different times, reporting a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC.

4. The method according to claim 1, wherein,

the step of the UE encapsulating the particular PH of the activated UL CC and the particular maximum output power of the physical channel of the activated UL CC into a same PHR and reporting the PHR to the eNB comprises:

the UE reporting a maximum output power of the physical channel of all activated UL CCs which have data scheduling.

5. The method according to claim 4, wherein,

a cell where the UL CC locates comprises a primary cell and a secondary cell;

the step of the UE reporting a maximum output power of the physical channel of the UL CCs which have data scheduling comprises;

the UE, for the activated UL CC in the primary cell, in the transmission mode that the PUCCH and the PUSCH are transmitted at the same time, if there is a PUSCH and/or PUCCH on the UL CC, reporting a maximum output power of the physical channel which is used for calculating a type 1PH of the UL CC and the maximum output power of the physical channel which is used for calculating a type 2PH of the UL CC;

in a transmission mode that the PUCCH and the PUSCH are transmitted at different times, if there is a PUSCH on the UL CC, reporting a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC; and

the UE, for the activated UL CC in the secondary cell, in a transmission mode that the PUCCH and the PUSCH are transmitted at the same time or at different times, if there is a PUSCH on the ULCC, reporting a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC.

6. The method according to claim 4, wherein,

a cell where the UL CC locates comprises a primary cell and a secondary cell;

the step of the UE reporting a maximum output power of the physical channel of the UL CCs which have data scheduling comprises;

the UE, for the activated UL CC in the primary cell, in the transmission mode that the PUCCH and the PUSCH are transmitted at the same time, if there is a PUSCH and a PUCCH on the UL CC, then reporting a maximum output power of the physical channel which is used for calculating a type 1PH of the UL CC and the maximum output power of the physical channel which is used for calculating a type 2PH of the UL CC;

if there is only a PUSCH transmitted on the UL CC, then only reporting the maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC;

if there is only a PUCCH transmitted on the UL CC, then only reporting the maximum output power of the physical channel which is used for calculating the type 2PH of the UL CC;

in a transmission mode that the PUCCH and the PUSCH are transmitted at different times, if there is a PUSCH on the UL CC, then reporting a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC; and

the UE, for the activated UL CC in the secondary cell, in a transmission mode that the PUCCH and the PUSCH are transmitted at the same time or at different times, if there is a PUSCH on the UL CC, then reporting a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC.

7. The method according to claim 1, wherein,

the step of the UE encapsulating the particular PH of the activated UL CC and the particular maximum output power of the physical channel of the activated UL CC into a same PHR and reporting the PHR to the eNB comprises:

the UE respectively encapsulating the particular maximum output power of the physical channel of each UL CC after the particular PH of each UL CC when encapsulating the PHR.

8. The method according to claim 3, further comprising:

the UE further encapsulating indication information of a cell state in the PHR to indicate a transmission mode of the primary cell and/or whether the secondary cell is in an activated state;

wherein,

the transmission mode comprises;

a transmission mode that the PUCCH and the PUSCH are transmitted at the same time, and a transmission mode that the PUCCH and the PUSCH are transmitted at different times.

17. The method according to claim 5, further comprising:

the UE further encapsulating indication information of a cell state in the PHR to indicate a transmission mode of the primary cell and/or whether the secondary cell is in an activated state;

wherein,

the transmission mode comprises;

a transmission mode that the PUCCH and the PUSCH are transmitted at the same time, and a transmission mode that the PUCCH and the PUSCH are transmitted at different times.

18. The method according to claim 6, further comprising:

the UE further encapsulating indication information of a cell state in the PHR to indicate a transmission mode of the primary cell and/or whether the secondary cell is in an activated state;

wherein,

the transmission mode comprises;

a transmission mode that the PUCCH and the PUSCH are transmitted at the same time, and a transmission mode that the PUCCH and the PUSCH are transmitted at different times.

9. An apparatus for reporting a maximum carrier power in a carrier aggregation scenario, comprising a processing module and a sending module, wherein,

the processing module is configured to:

encapsulate a particular power headroom (PH) of an activated uplink component carrier (UL CC) and a particular maximum output power of a physical channel of the activated UL CC into a same power headroom report (PHR); and

the sending module is configured to;

send out the PHR.

10. The apparatus according to claim 9, wherein,

the processing module is configured to:

encapsulate the maximum output power of the physical channel of all activated UL CCs into the PHR.

11. The apparatus according to claim 10, wherein,

a cell where the UL CC locates comprises a primary cell and a secondary cell;

the processing module is configured to encapsulate the maximum output power of the physical channel of all activated UL CCs into the PHR according to the following way;

for the activated UL CC in the primary cell, in a transmission mode that a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH) are transmitted at the same time, encapsulating a maximum output power of the physical channel which is used for calculating a type 1PH of the UL CC and a maximum output power of the physical channel which is used for calculating a type 2PH of the UL CC into the PHR;

in a transmission mode that the PUCCH and the PUSCH are transmitted at different times, encapsulating a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC into the PHR; and

for the activated UL CC in the secondary cell, in a transmission mode that the PUCCH and the PUSCH are transmitted at the same time or at different times, encapsulating a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC into the PHR.

12. The apparatus according to claim 9, wherein,

the processing module is configured to encapsulate the maximum output power of the physical channel in all activated UL CCs which have data scheduling into the PHR.

13. The apparatus according to claim 12, wherein,

a cell where the UL CC locates comprises a primary cell and a secondary cell;

the processing module is configured to encapsulate the maximum output power of the physical channel of the UL CCs which have data scheduling into the PHR according to the following way;

for the activated UL CC in the primary cell, in the transmission mode that the PUCCH and the PUSCH are transmitted at the same time, if there is a PUSCH and/or PUCCH on the ULCC, then encapsulating a maximum output power of the physical channel which is used for calculating a type 1PH of the UL CC and the maximum output power of the physical channel which is used for calculating a type 2PH of the UL CC into the PHR;

in a transmission mode that the PUCCH and the PUSCH are transmitted at different times, if there is a PUSCH on the UL CC, then encapsulating a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC into the PHR; and

for the activated UL CC in the secondary cell, in a transmission mode that the PUCCH and the PUSCH are transmitted at the same time or at different times, if there is a PUSCH on the UL CC, then encapsulating a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC into the PHR.

14. The apparatus according to claim 12, wherein,

a cell where the UL CC locates comprises a primary cell and a secondary cell;

the processing module is configured to encapsulate the maximum output power of the physical channel in all activated UL CCs which have data scheduling into the PHR according to the following way;

for the activated UL CC in the primary cell, in the transmission mode that the PUCCH and the PUSCH are transmitted at the same time, if there is a PUSCH and a PUCCH on the ULCC, then encapsulating a maximum output power of the physical channel which is used for calculating a type 1PH of the UL CC and the maximum output power of the physical channel which is used for calculating a type 2PH of the UL CC into the PHR;

if there is only a PUSCH transmitted on the ULCC, then encapsulating the maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC into the PHR;

if there is only a PUCCH transmitted on the ULCC, then encapsulating the maximum output power of the physical channel which is used for calculating the type 2PH of the UL CC into the PHR;

in a transmission mode that the PUCCH and the PUSCH are transmitted at different times, if there is a PUSCH on the ULCC, then encapsulating a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC into the PHR; and

for the activated UL CC in the secondary cell, in a transmission mode that the PUCCH and the PUSCH are transmitted at the same time or at different times, if there is a PUSCH on the UL CC, then encapsulating a maximum output power of the physical channel which is used for calculating the type 1PH of the UL CC.

15. The apparatus according to claim 9, wherein,

the processing module is configured to respectively encapsulate the particular maximum output power of the physical channel of each UL CC after the particular PH of each UL CC when encapsulating the PHR.

16. The apparatus according to claim 11, wherein,

the processing module is further configured to encapsulate indication information of a cell state in the PHR to indicate a transmission mode of the primary cell and/or whether the secondary cell is in an activated state;

and

the transmission mode comprises;

a transmission mode that the PUCCH and the PUSCH are transmitted at the same time, and a transmission mode that the PUCCH and the PUSCH are transmitted at different times.

19. The apparatus according to claim 13, wherein,

the processing module is further configured to encapsulate indication information of a cell state in the PHR to indicate a transmission mode of the primary cell and/or whether the secondary cell is in an activated state;

and

the transmission mode comprises;

a transmission mode that the PUCCH and the PUSCH are transmitted at the same time, and a transmission mode that the PUCCH and the PUSCH are transmitted at different times.

20. The apparatus according to claim 14, wherein,

the processing module is further configured to encapsulate indication information of a cell state in the PHR to indicate a transmission mode of the primary cell and/or whether the secondary cell is in an activated state;

and

the transmission mode comprises;

a transmission mode that the PUCCH and the PUSCH are transmitted at the same time, and a transmission mode that the PUCCH and the PUSCH are transmitted at different times.