Carrier configuration method and device

• US 10,476,640 B2
• Filed: 09/19/2017
• Issued: 11/12/2019
• Est. Priority Date: 03/20/2015
• 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, Bingzhao, Yang, Xiaodong, Quan, Wei, Miao, Jinhua, Hu, Zhenxing, Zhang, Jian
• Primary Examiner(s): Elliott, IV, Benjamin H
• Application Number:
  US15/708,699
• Publication Number:
  US 20180006775A1
• Time in Patent Office: 784 Days
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention discloses a carrier configuration method and a device, and relates to the field of communications, to resolve a problem that dividing multiple component carriers into primary and secondary component carriers only is not conducive to management of an important secondary component carrier. In a specific solution, a carrier aggregation model is configured for UE, so that the UE performs data transmission with a network device according to the carrier aggregation model. The carrier aggregation model includes multiple component carriers, the multiple component carriers include at least one core carrier, and the at least one core carrier includes at least one primary core carrier. The core carrier has an uplink transmission function and a downlink transmission function. The present invention is applied to a carrier configuration process.

Claims

1. A carrier configuration method, comprising:

configuring a carrier aggregation model for user equipment (UE), wherein the carrier aggregation model comprising multiple component carriers, the multiple component carriers comprising at least two core carriers and at least one non-core carriers, and the at least two core carriers comprising at least one primary core carrier and at least one secondary core carrier;

each of the at least one core carrier has an uplink transmission function and a downlink transmission function, the uplink transmission function comprising the following;

an uplink feedback function corresponding to downlink data, a downlink channel state feedback function, and an uplink data transmission function, and the downlink transmission function comprising at least one of the following;

a downlink feedback function corresponding to uplink data, an uplink channel state feedback function, or a downlink data transmission function; and

the primary core carrier comprising at least one of the following functions;

a system message bearing function, a paging message bearing function, a semi-static scheduling parameter configuration function, a camping reference function, or an encryption reference function; and

sending a primary core carrier change notification message to the UE, wherein the primary core carrier change notification message instructs the UE to change a first secondary core carrier to a first primary core carrier.

2. The method according to claim 1, wherein after the sending a primary core carrier change notification message to the UE, the method further comprises:

determining, according to a random access channel (RACH) procedure triggered by the UE, that the primary core carrier of the UE is successfully changed.

3. The method according to claim 1, wherein, after the configuring a carrier aggregation model for user equipment UE, the method further comprises:

receiving a notification that the primary core carrier of the UE is changed.

4. The method according to claim 3, wherein the receiving a notification that the primary core carrier of the UE is changed comprises:

receiving a RACH procedure that is triggered by the UE based on an uplink carrier corresponding to the new primary core carrier; and

after the receiving a notification that the primary core carrier of the UE is changed, the method further comprises;

determining, according to the RACH procedure, that the primary core carrier is changed.

5. A carrier configuration method, comprising:

receiving a carrier aggregation model sent by a network device;

performing data transmission with the network device according to the carrier aggregation model, wherein the carrier aggregation model comprising multiple component carriers, the multiple component carriers comprising at least two core carriers and at least one non-core carriers, and the at least two core carriers comprising at least one primary core carrier and at least one second core carrier;

each of the at least one core carrier has an uplink transmission function and a downlink transmission function, the uplink transmission function comprising the following;

an uplink feedback function corresponding to downlink data, a downlink channel state feedback function, and an uplink data transmission function, and the downlink transmission function comprising at least one of the following;

a downlink feedback function corresponding to uplink data, an uplink channel state feedback function, or a downlink data transmission function; and

the primary core carrier comprising at least one of the following functions;

a system message bearing function, a paging message bearing function, a semi-static scheduling parameter configuration function, a camping reference function, or an encryption reference function;

receiving a primary core carrier change notification message sent by the network device, wherein the primary core carrier change notification message instructs to change a first secondary core carrier to a first primary core carrier; and

changing the first secondary core carrier to the first primary core carrier.

6. The method according to claim 5, wherein after the changing the primary core carrier to a new primary core carrier according to the primary core carrier change notification message, the method further comprises:

triggering a random access channel (RACH) procedure.

7. The method according to claim 5, wherein the determining to change the primary core carrier comprises:

when determining that a primary core link fails, determining to change the primary core carrier.

8. A network device, comprising:

a processor, configured to

configure a carrier aggregation model for user equipment (UE), the carrier aggregation model comprising multiple component carriers, the multiple component carriers comprising at least two core carriers and at least one non-core carriers, and the at least two core carriers comprising at least one primary core carrier and at least one secondary core carrier;

each of the at least one core carrier has an uplink transmission function and a downlink transmission function, the uplink transmission function comprising the following;

an uplink feedback function corresponding to downlink data, a downlink channel state feedback function, and an uplink data transmission function, and the downlink transmission function comprising at least one of the following;

a downlink feedback function corresponding to uplink data, an uplink channel state feedback function, or a downlink data transmission function; and

the primary core carrier comprising at least one of the following functions;

a system message bearing function, a paging message bearing function, a semi-static scheduling parameter configuration function, a camping reference function, or an encryption reference function; and

a transmitter, configured to

send a primary core carrier change notification message to the UE, wherein the primary core carrier change notification message instructs the UE to change a first secondary core carrier to a first primary core carrier.

9. The network device according to claim 8, wherein

the processor is further configured to:

after the transmitter sends the primary core carrier change notification message to the UE, determine, according to a random access channel (RACH) procedure triggered by the UE, that the primary core carrier of the UE is successfully changed.

10. The network device according to claim 8, wherein the network device further comprises:

a receiver, configured to;

after the processor configures the carrier aggregation model for the user equipment UE, receive a notification that the primary core carrier of the UE is changed.

11. The network device according to claim 10, wherein the receiver is specifically configured to:

receive a RACH procedure that is triggered by the UE based on an uplink carrier corresponding to the new primary core carrier; and

the processor is further configured to;

after the receiver receives the notification that the primary core carrier of the UE is changed, determine, according to the RACH procedure, that the primary core carrier is changed.

12. User equipment, comprising:

a receiver, configured to receive a carrier aggregation model sent by a network device;

a transmitter, configured to perform data transmission with the network device according to the carrier aggregation model received by the receiver, the carrier aggregation model comprising multiple component carriers, the multiple component carriers comprising at least two core carriers and at least one non-core carriers, and the at least two core carriers comprising at least one primary core carrier and at least one secondary core carrier;

each of the at least one core carrier has an uplink transmission function and a downlink transmission function, the uplink transmission function comprising at least one of the following;

an uplink feedback function corresponding to downlink data, a downlink channel state feedback function, or an uplink data transmission function, and the downlink transmission function comprising the following;

a downlink feedback function corresponding to uplink data, an uplink channel state feedback function, and a downlink data transmission function; and

the primary core carrier comprising at least one of the following functions;

a system message bearing function, a paging message bearing function, a semi-static scheduling parameter configuration function, a camping reference function, or an encryption reference function; and

a processor configured to change a first secondary core carrier to a first primary core carrier based on the receiver receiving a primary core carrier change notification message sent by the network device, wherein the primary core carrier change notification message instructs to change the first secondary core carrier to the first primary core carrier.

13. The user equipment according to claim 12, wherein the processor is further configured to:

after the changing the primary core carrier to a new primary core carrier according to the primary core carrier change notification message, trigger a random access channel (RACH) procedure.

14. The user equipment according to claim 12, wherein the processor is specifically configured to:

when determining that a primary core link fails, determine to change the primary core carrier.