# US 9,439,083 B2 · Method and apparatus for transmitting message in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,439,083 B2 - Document ID: US9439083B2 - Status: Granted - Kind: B2 - Application number: 14/398,080 - Filed: 2013-05-03 - Published: 2015-03-26 - Granted: 2016-09-06 - Earliest claimed: 2012-05-03 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Youngdae Lee; Sungjun Park; Seungjune Yi; Sunghoon Jung; Jaewook Lee - Web page: https://patentgrep.com/patent/US9439083B2 ## CPC - H04W 24/02: Arrangements for optimising operational condition - H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports} - H04W 36/0064: {of control information between different access points} - H04W 36/04: Reselecting a cell layer in multi-layered cells - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method and apparatus for transmitting a message in a wireless communication system is provided. A user equipment (UE) enters a proximity of a neighbor cell, detects interference on a frequency, and transmits a message, including information on the interference and an indication of entering the proximity of the neighbor cell, to a base station. ## Claims ### Claim 1 A method for transmitting, by a user equipment (UE), a message in a wireless communication system, the method comprising: entering a proximity of a neighbor cell; detecting interference on a frequency in which the neighbor cell operates; performing a comparison between a priority of the interference and a priority of the neighbor cell by using an indication of potential or ongoing interference on the frequency, a type of the interference, assistance information for the interference, and a level of the interference; transmitting a first message, including information on the interference and an indication of entering the proximity of the neighbor cell, to a base station when a result of the comparison indicates that the priority of the neighbor cell is higher than the priority of the interference; and transmitting a second message, including information on the interference and an indication of leaving the proximity of the neighbor cell, to the base station when the result of the comparison indicates that the priority of the neighbor cell is lower than the priority of the interference. ### Claim 2 (depends on 1) The method of claim 1, wherein the first message is transmitted when a level of the interference on the frequency in which the neighbor cell operates is less than a threshold, and wherein the second message is transmitted when the level of the interference on the frequency is greater than or equal to the threshold. ### Claim 3 (depends on 1) The method of claim 1, wherein the interference is in-device coexistence (IDC) interference. ### Claim 4 (depends on 3) The method of claim 3, wherein the IDC interference is IDC interference between a 3rd generation partnership project (3GPP) long-term evolution (LTE) module of the UE and a wireless local area network (WLAN) module of the UE. ### Claim 5 (depends on 1) The method of claim 1, wherein the neighbor cell is one of a closed subscriber group (CSG) cell, a small cell, a pico cell, and a femto cell. ### Claim 6 (depends on 1) The method of claim 1, wherein the first message and the second message are a proximity indication. ### Claim 7 (depends on 1) The method of claim 1, wherein the information on the interference includes information related to the priority of the interference and the priority of the neighbor cell. ### Claim 8 (depends on 1) The method of claim 1, wherein the priority of the neighbor cell is higher than the priority of the interference when the level of the interference on the frequency is less than a threshold, and wherein the priority of the neighbor cell is lower than the priority of the interference when the level of the interference on the frequency is greater than or equal to the threshold. ### Claim 9 A user equipment (UE) in a wireless communication system, the UE comprising: a radio frequency (RF) unit configured to transmit or receive a radio signal; and a processor operatively connected to the RF unit, and configured to: enter a proximity of a neighbor cell, detect interference on a frequency in which the neighbor cell operates, perform a comparison between a priority of the interference and a priority of the neighbor cell by using an indication of potential or ongoing interference on the frequency, a type of the interference, assistance information for the interference, and a level of the interference; transmit a first message, including information on the interference and an indication of entering the proximity of the neighbor cell, to a base station when a result of the comparison indicates that the priority of the neighbor cell is higher than the priority of the interference, and transmit a second message, including information on the interference and an indication of leaving the proximity of the neighbor cell, to the base station when the result of the comparison indicates that the priority of the neighbor cell is lower than the priority of the interference. ### Claim 10 (depends on 9) The UE of claim 9, wherein the interference is in-device coexistence (IDC) interference. ### Claim 11 (depends on 9) The UE of claim 9, wherein the neighbor cell is one of a closed subscriber group (CSG) cell, a small cell, a pico cell, and a femto cell. ### Claim 12 (depends on 9) The UE of claim 9, wherein the first message and the second message are a proximity indication. ### Claim 13 (depends on 9) The UE of claim 9, wherein the information on the interference includes information related to the priority of the interference and the priority of the neighbor cell. ### Claim 14 (depends on 9) The UE of claim 9, wherein the priority of the neighbor cell is higher than the priority of the interference when the level of the interference on the frequency is less than a threshold, and wherein the priority of the neighbor cell is lower than the priority of the interference when the level of the interference on the frequency is greater than or equal to the threshold.