METHOD AND APPARATUS FOR RESTRICTING FREQUENCY IN WIRELESS COMMUNICATION SYSTEM

• US 20150373729A1
• Filed: 02/05/2014
• Published: 12/24/2015
• Est. Priority Date: 02/06/2013
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Jaewook, LEE, Youngdae, JUNG, Sunghoon
• Granted Patent: US 9,883,516 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 8/245 from a network towards a terminal
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method and apparatus for restricting a frequency in a wireless communication system is provided. A user equipment (UE) receives restriction information and a timer value from a network, starts a timer based on the timer value, and restricts usage of a frequency based on the restriction information.

Claims

1. A method for restricting, by a user equipment (UE), a frequency in a wireless communication system, the method comprising:

receiving restriction information and a timer value from a network;

starting a timer based on the timer value; and

restricting usage of a frequency based on the restriction information.

2. The method of claim 1, wherein the restriction information includes information an unusable frequency in an unlicensed band.

3. The method of claim 2, wherein the unlicensed band is included in one of an 3^rd generation partnership project (3GPP) long-term evolution (LTE) band, Wi-Fi band, Bluetooth band, global positioning system (GPS) band.

4. The method of claim 2, wherein the restriction information includes at least one of direction of in-device coexistence (IDC) interference and a cause value which indicates that the frequency in the unlicensed band is affected by the IDC interference.

5. The method of claim 1, wherein the restriction information is based on IDC indications from other UEs.

6. The method of claim 1, wherein the timer value is fixed.

7. The method of claim 1, wherein the usage of the frequency is restricted while the timer is running.

8. A user equipment (UE) in a wireless communication system, the UE comprising:

a radio frequency (RF) unit for transmitting or receiving a radio signal; and

a processor couple to the RF unit, and configured to;

receive restriction information and a timer value from a network;

start a timer based on the timer value; and

restrict usage of a frequency based on the restriction information.

9. The UE of claim 8, wherein the restriction information includes information an unusable frequency in an unlicensed band.

10. The UE of claim 9, wherein the unlicensed band is included in one of an 3^rd generation partnership project (3GPP) long-term evolution (LTE) band, Wi-Fi band, Bluetooth band, global positioning system (GPS) band.

11. The UE of claim 9, wherein the restriction information includes at least one of direction of in-device coexistence (IDC) interference and a cause value which indicates that the frequency in the unlicensed band is affected by the IDC interference.

12. The UE of claim 8, wherein the restriction information is based on IDC indications from other UEs.

13. The UE of claim 8, wherein the timer value is fixed.

14. The UE of claim 8, wherein the usage of the frequency is restricted while the timer is running.