Method and apparatus for transmitting and receiving UE capability information in mobile communication system

Patent metadata

Field	Value
Publication number	US-9655121-B2
Application number	US-201514707205-A
Country	US
Kind code	B2
Filing date	May 8, 2015
Priority date	May 9, 2014
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

In order to transmit capability information of a user equipment (UE) to an evolved Node B (eNB), the UE may generate a UE CAPABILITY INFORMATION message including the capability information of the UE, and transmit the generated UE CAPABILITY INFORMATION message to the eNB. Here, the capability information of the UE may include at least one band combination supported by the UE and whether Time Division Duplexing-Frequency Division Duplexing Carrier Aggregation (TDD-FDD CA) for the band combination is supported.

First claim

What is claimed is:

1. A method for transmitting capability information by a terminal, the method comprising:
receiving, from a base station, a first message including first information that requests at least one frequency band supported by the terminal and second information that requests at least one radio access capability of the terminal;
generating a second message including capability information based on the first message; and
transmitting, to the base station, the second message,
wherein the capability information comprises at least one carrier aggregation (CA) band combination supported by the terminal, and
wherein the at least one CA band combination is requested based on the first information included in the first message and includes two downlink frequency bands and one uplink frequency band.

2. The method of claim 1 , wherein the capability information further comprises at least one other CA band combination including two downlink frequency bands and one uplink frequency band supported by the terminal.

3. The method of claim 1 , wherein the capability information further comprises at least one non-CA band supported by the UE terminal.

4. The method of claim 1 , wherein CA band combinations in the capability information, at least in part, are prioritized based on the first information included in the first message.

5. The method of claim 1 , wherein the second message further comprises information indicating at least one frequency band supported by the terminal.

6. A method for receiving capability information by a base station, the method comprising:
generating a first message including first information that requests at least one frequency band supported by a terminal and second information that requests at least one radio access capability of the terminal;
transmitting, to the terminal, the first message; and
receiving, from the terminal, a second message including capability information corresponding to the first message,
wherein the capability information comprises at least one carrier aggregation (CA) band combination supported by the terminal, and
wherein the at least one CA band combination is requested based on the first information included in the first message and includes two downlink frequency bands and one uplink frequency band.

7. The method of claim 6 ,
wherein the capability information further comprises at least one other CA band combination including two downlink frequency bands and one uplink frequency band supported by the terminal, and
wherein the capability information further comprises at least one non-CA band supported by the terminal.

8. The method of claim 6 , wherein CA band combinations in the capability information, at least in part, are prioritized based on the first information included in the first message.

9. A terminal for transmitting capability information, the terminal comprising:
a transceiver configured to transmit and to receive a signal; and
a controller configured:
to receive a first message including first information that requests at least one frequency band supported by the terminal and second information that requests at least one radio access capability of the terminal from a base station,
to generate a second message including capability information based on the first message, and
to transmit the second message to the base station,

wherein the capability information comprises at least one carrier aggregation (CA) band combination supported by the terminal, and
wherein the at least one CA band combination is requested based on the first information included in the first message and includes two downlink frequency bands and one uplink frequency band.

10. The terminal of claim 9 , wherein the capability information further comprises at least one other CA band combination including two downlink frequency bands and one uplink frequency band supported by the terminal.

11. The terminal of claim 9 , wherein the capability information further comprises at least one non-CA band supported by the terminal.

12. The terminal of claim 9 , wherein CA band combinations in the capability information, at least in part, are prioritized based on the first information included in the first message.

13. The terminal of claim 9 , wherein the second message further comprises information indicating at least one frequency band supported by the terminal.

14. A base station for receiving capability information, the base station comprising:
a transceiver configured to transmit and to receive a signal; and
a controller configured:
to generate a first message including first information that requests at least one frequency band supported by a terminal and second information that requests at least one radio access capability of the terminal,
to transmit the first message to the terminal, and
to receive a second message including capability information corresponding to the first message from the terminal,

wherein the capability information comprises at least one carrier aggregation (CA) band combination supported by the terminal, and
wherein the at least one CA band combination is requested based on the first information included in the first message and includes two downlink frequency bands and one uplink frequency band.

15. The base station of claim 14 ,
wherein the capability information further comprises at least one other CA band combination including two downlink frequency bands and one uplink frequency band supported by the terminal, and
wherein the capability information further comprises at least one non-CA band supported by the terminal.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Soenghun
• Jeong Kyeongin
• Kim Sangbum

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W88/02

  Terminal devices · CPC title

• H04W8/24 Primary

  Transfer of terminal data · CPC title

• H04L5/001 Primary

  the frequencies being arranged in component carriers · CPC title

• H04L5/0098

  Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands · CPC title