CARRIER AGGREGATION PROCESSING METHOD AND DEVICE

• US 20150036648A1
• Filed: 10/23/2014
• Published: 02/05/2015
• Est. Priority Date: 06/25/2013
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: LI, Jie, FANG, Minxi
• Granted Patent: US 9,642,141 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• 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 48/20 Selecting an access point
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

Embodiments of the present invention relate to the field of wireless communications technologies, and in particular, to a CA processing method and device, so as to provide a CA processing scheme applicable to a network sharing scenario. In the embodiments of the present invention, a second cell is determined according to a first PLMN ID used by a CA user equipment in a first cell and a frequency supported by the CA user equipment, where the first cell is a cell that the CA UE currently accesses, CA can be performed on a second PLMN ID supported by the second cell and the first PLMN ID used by the CA user equipment in the first cell, and a frequency used by the second cell can be supported by the CA user equipment; and, according to the determined second cell, a CA cell is configured for the CA user equipment.

Claims

1. A carrier aggregation processing method, comprising:

determining, by a network-side device, a second cell according to a first public land mobile network identifier (PLMN ID) used by a carrier aggregation (CA) user equipment in a first cell and a frequency supported by the CA user equipment, wherein the first cell is a cell that the CA user equipment currently accesses, CA can be performed on a second PLMN ID supported by the second cell and the first PLMN ID used by the CA user equipment in the first cell, and a frequency used by the second cell can be supported by the CA user equipment; and

setting, by the network-side device, the second cell as a CA cell for the CA user equipment.

2. The method according to claim 1, wherein

the second PLMN ID is the same as the first PLMN ID;

or

the second PLMN ID is equivalent to the first PLMN ID.

3. The method according to claim 1, wherein the determining, by a network-side device, a second cell according to a first PLMN ID used by a CA user equipment in a first cell and a frequency supported by the CA user equipment comprises:

selecting, by the network-side device, from cells supporting the second PLMN ID on which CA can be performed with the first PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell.

4. The method according to claim 1, wherein the determining, by a network-side device, a second cell according to a first PLMN ID used by a CA user equipment in a first cell and a frequency supported by the CA user equipment comprises:

selecting, by the network-side device, from cells adopting the frequency that can be supported by the CA user equipment, a cell supporting the second PLMN ID on which CA can be performed with the first PLMN ID as the second cell.

5. The method according to claim 3, wherein the selecting, by the network-side device, from cells supporting the second PLMN ID on which CA can be performed with the first PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell comprises:

selecting, by the network-side device, from a first cell set, cells supporting the second PLMN ID, and selecting, by the network-side device, from the selected cells supporting the second PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell.

6. The method according to claim 3, wherein the selecting, by the network-side device, from cells supporting the second PLMN ID on which CA can be performed with the first PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell comprises:

selecting, by the network-side device, from a second cell set supporting the second PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell.

7. The method according to claim 4, wherein the selecting, by the network-side device, from cells adopting the frequency that can be supported by the CA user equipment, a cell supporting the second PLMN ID on which CA can be performed with the first PLMN ID as the second cell comprises:

selecting, by the network-side device, from a first cell set, cells adopting the frequency that can be supported by the CA user equipment, and

selecting, by the network-side device, from the selected cells adopting the frequency that can be supported by the CA user equipment, a cell supporting the second PLMN ID on which CA can be performed with the first PLMN ID as the second cell.

8. The method according to claim 1, wherein the setting, by the network-side device, the second cell as a CA cell for the CA user equipment comprises:

sending, by the network-side device, CA measurement control information that comprises the frequency used by the second cell to the CA user equipment;

receiving, by the network-side device, measurement information from the CA user equipment, wherein the measurement information is acquired through measurement that is performed by the CA user equipment according to the CA measurement control information;

setting, by the network-side device, the second cell as a CA cell for the CA user equipment according to the measurement information received from the CA user equipment.

9. The method according to claim 1, wherein the network-side device comprises:

a base station, or an relay node (RN) device.

10. A network-side device for performing carrier aggregation processing, comprising:

at least one processor and a memory coupled to the at least one processor, wherein the at least one processor is/are configured to;

determine a second cell according to a first public land mobile network identifier (PLMN ID) used by a carrier aggregation (CA) user equipment in a first cell and a frequency supported by the CA user equipment, wherein the first cell is a cell that the CA UE currently accesses, CA can be performed on a second PLMN ID supported by the second cell and the first PLMN ID used by the CA user equipment in the first cell, and a frequency used by the second cell can be supported by the CA user equipment; and

set the second cell as a CA cell for the CA user equipment.

11. The network-side device according to claim 10, wherein

the second PLMN ID is the same as the first PLMN ID;

or

the second PLMN ID is equivalent to the first PLMN ID.

12. The network-side device according to claim 10, wherein the processor is configured to:

select, from cells supporting the second PLMN ID on which CA can be performed with the first PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell.

13. The network-side device according to claim 10, wherein the processor is configured to:

select, from cells adopting the frequency that can be supported by the CA user equipment, a cell supporting the second PLMN ID on which CA can be performed with the first PLMN ID as the second cell.

14. The network-side device according to claim 12, wherein the processor is configured to:

select, from a first cell set, cells supporting the second PLMN ID, and selecting, from the selected cells supporting the second PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell.

15. The network-side device according to claim 12, wherein the processor is configured to:

select, from a second cell set supporting the second PLMN ID, a cell adopting the frequency that can be supported by the CA user equipment as the second cell.

16. The network-side device according to claim 13, wherein the processor is configured to:

select, from a first cell set, cells adopting the frequency that can be supported by the CA user equipment, and

select, from the selected cells adopting the frequency that can be supported by the CA user equipment, a cell supporting the second PLMN ID on which CA can be performed with the first PLMN ID as the second cell.

17. The network-side device according to claim 10, wherein the network-side device, further comprising:

a transmitter and a receiver;

the transmitter is configured to send CA measurement control information that comprises the frequency used by the second cell to the CA user equipment;

the receiver is configured to measurement information from the CA user equipment, wherein the measurement information is acquired through measurement that is performed by the CA user equipment according to the CA measurement control information;

the processor is configured to set the second cell as a CA cell for the CA user equipment according to the measurement information received from the CA user equipment.

18. The network-side device according to claim 10, wherein the network-side device comprises:

a base station, or an relay node (RN) device.