METHOD FOR MEASURING TO ELIMINATE IDC INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME

• US 20130176891A1
• Filed: 10/05/2011
• Published: 07/11/2013
• Est. Priority Date: 10/19/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Jaewook, Chun, Sungduck, Yi, Seungjune, Jung, Sunghoon, Lee, Youngdae, Park, Sungjun
• Granted Patent: US 9,462,498 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04B 1/525 with means for reducing leakage of transmitter signal into the receiver
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 36/0058 Transmission of hand-off measurement information, e.g. measurement reports
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• 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

The present invention discloses a method for a first communication module of a user equipment measuring for eliminating in-device coexistence (IDC) interference in a wireless communication system. More particularly, the present invention comprises the following steps: receiving a message from one or more second communication modules which coexists in the terminal; performing inter-frequency measurement based on the setting information related to measuring when the message indicates the beginning of the operation of the second communication module; and reporting to the base station the result of the inter-frequency measurement.

Claims

1. A method for allowing a first communication module of a user equipment to perform measurement to eliminate In-Device Coexistence (IDC) interference in a wireless communication system, the method comprising the steps of:

receiving measurement related setup information from a base station;

receiving a message from one or more second communication modules which coexist in the user equipment;

performing inter-frequency measurement on the basis of the measurement related setup information if the message indicates driving start of the second communication module; and

reporting to the base station the result of the inter-frequency measurement.

2. The method according to claim 1, wherein the measurement related setup information includes a threshold value (s-measure) related to a measured result of a serving cell.

3. The method according to claim 2, wherein, if the message indicates driving start of the second communication module, the threshold value (s-measure) included in the measurement related setup information is disregarded.

4. The method according to claim 2, wherein, if the message indicates driving end of the second communication module, the step of performing inter-frequency measurement includes:

comparing a frequency measured value of a serving frequency of the first communication module with the threshold value; and

performing inter-frequency measurement if the frequency measured value is less than the threshold value.

5. The method according to claim 2, wherein driving start of the second communication module corresponds to a power-on operation of the second communication module or a traffic transmission and reception operation of the second communication module.

6. The method according to claim 1, wherein the one or more second communication modules include at least one of a transmission and reception module for WiFi system, a Bluetooth transmission and reception module, and a global positioning system (GPS) reception module.

7. A user equipment in a wireless communication system, the user equipment comprising:

a first communication module for transmitting and receiving a signal to and from a first communication system; and

one or more second communication modules for transmitting and receiving a signal to and from other communication system,

wherein the first communication module receive measurement related setup information from a base station, receives a message from the one or more second communication modules which coexist in the user equipment, performs inter-frequency measurement on the basis of the measurement related setup information if the message indicates driving start of the second communication module, and reports to the base station the result of the inter-frequency measurement.

8. The user equipment according to claim 7, wherein the measurement related setup information includes a threshold value (s-measure) related to a measured result of a serving cell.

9. The user equipment according to claim 8, wherein, if the message indicates driving start of the second communication module, the threshold value (s-measure) included in the measurement related setup information is disregarded.

10. The user equipment according to claim 8, wherein, if the message indicates driving end of the second communication module, the first communication module compares a frequency measured value of a serving frequency of the first communication module with the threshold value, and performs inter-frequency measurement if the frequency measured value is less than the threshold value.

11. The user equipment according to claim 8, wherein driving start of the second communication module corresponds to a power-on operation of the second communication module or a traffic transmission and reception operation of the second communication module.

12. The user equipment according to claim 7, wherein the one or more second communication modules include at least one of a transmission and reception module for WiFi system, a Bluetooth transmission and reception module, and a global positioning system (GPS) reception module.