# US 2014/0153509 A1 · Method and apparatus for establishing proximity service communication in a 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 2014/0153509 A1 - Document ID: US20140153509A1 - Status: Published application - Kind: A1 - Application number: 14/092,684 - Filed: 2013-11-27 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Innovative Sonic Limited - Applicants: Innovative Sonic Corporation - Inventors: Yu-Hsuan Guo - Web page: https://patentgrep.com/patent/US20140153509A1 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - H04W 48/16: Discovering, processing access restriction or access information - H04W 76/14: Direct-mode setup - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods and apparatuses are disclosed to establish proximity service communication between a first user equipment (UE) and a second UE. The method includes receiving, by the first UE, a signaling transmitted by an evolved Node B (eNB) to provide a radio resource for the first UE to transmit data directly to the second UE, wherein an indication of a Radio Network Temporary Identifier (RNTI) is included in the signaling. The method further includes transmitting, by the first UE, data via the radio resource to the second UE, wherein the data is scrambled by the RNTI. ## Claims ### Claim 1 A method for establishing proximity service communication between a first user equipment (UE) and a second UE, the method comprising: receiving, by the first UE, a signaling transmitted by an evolved Node B (eNB) to provide a radio resource for the first UE to transmit data directly to the second UE, wherein an indication of a Radio Network Temporary Identifier (RNTI) is included in the signaling; and transmitting, by the first UE, data via the radio resource to the second UE, wherein the data is scrambled by the RNTI. ### Claim 2 (depends on 1) The method of claim 1, wherein the signaling is a Physical Downlink Control Channel (PDCCH) or Enhanced Physical Downlink Control Channel (EPDCCH) signaling. ### Claim 3 (depends on 1) The method of claim 1, wherein an indication about the radio resource is for the proximity service communication is included in the signaling. ### Claim 4 (depends on 1) The method of claim 1, wherein an indication of power to be used to transmit the data is included in the signaling. ### Claim 5 (depends on 1) The method of claim 1, wherein an indication of a radio bearer, whose data to be carried by the radio resource, is included in the signaling. ### Claim 6 A communication device for establishing proximity service communication between the communication device and a user equipment (UE), the communication device comprising: a control circuit; a processor installed in the control circuit; a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute a program code stored in memory to establish the proximity service communication by: receiving a signaling transmitted by an evolved Node B (eNB) to provide a radio resource for the communication device to transmit data directly to the UE, wherein an indication of a Radio Network Temporary Identifier (RNTI) is included in the signaling; and transmitting data via the radio resource to the UE, wherein the data is scrambled by the RNTI. ### Claim 7 (depends on 6) The communication device of claim 6, wherein the signaling is a Physical Downlink Control Channel (PDCCH) or Enhanced Physical Downlink Control Channel (EPDCCH) signaling. ### Claim 8 (depends on 6) The communication device of claim 6, wherein an indication about the radio resource is for the proximity service communication is included in the signaling. ### Claim 9 (depends on 6) The communication device of claim 6, wherein an indication of power to be used to transmit the data is included in the signaling. ### Claim 10 (depends on 6) The communication device of claim 6, wherein an indication of a radio bearer, whose data to be carried by the radio resource, is included in the signaling. ### Claim 11 A method for establishing proximity service communication between a first user equipment (UE) and a second UE, the method comprising: receiving, by the first UE, a first signaling transmitted by an evolved Node B (eNB) to provide a radio resource for the first UE to transmit data directly to the second UE; transmitting, by the first UE, a second signaling to the second UE to inform the second UE to receive data directly transmitted from the first UE; and transmitting, by the first UE, the data via the radio resource to the second UE. ### Claim 12 (depends on 11) The method of claim 11, wherein the second signaling is a Physical Downlink Control Channel (PDCCH) or Enhanced Physical Downlink Control Channel (EPDCCH) signaling or a signaling transmitted via a control channel for the proximity service communication. ### Claim 13 (depends on 11) The method of claim 11, wherein an indication of a Radio Network Temporary Identifier (RNTI) to be used to de-scramble the data is included in the second signaling. ### Claim 14 (depends on 11) The method of claim 11, wherein an indication of power to be used to transmit an acknowledgement for reception of the data is included in the second signaling. ### Claim 15 (depends on 11) The method of claim 11, wherein an indication of a key and/or an algorithm to be used to decipher the data and/or check the integrity of the data is included in the second signaling. ### Claim 16 A communication device for establishing proximity service communication between the communication device and a user equipment (UE), the communication device comprising: a control circuit; a processor installed in the control circuit; a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute a program code stored in memory to establish the proximity service communication by: receiving a first signaling transmitted by an evolved Node B (eNB) to provide a radio resource for the communication device to transmit data directly to the UE; transmitting a second signaling to the UE to inform the UE to receive data directly transmitted from the communication device; and transmitting the data via the radio resource to the UE. ### Claim 17 (depends on 16) The communication device of claim 16, wherein the second signaling is a Physical Downlink Control Channel (PDCCH) or Enhanced Physical Downlink Control Channel (EPDCCH) signaling or a signaling transmitted via a control channel for the proximity service communication. ### Claim 18 (depends on 16) The communication device of claim 16, wherein an indication of a Radio Network Temporary Identifier (RNTI) to be used to de-scramble the data is included in the second signaling. ### Claim 19 (depends on 16) The communication device of claim 16, wherein an indication of power to be used to transmit an acknowledgement for reception of the data is included in the second signaling. ### Claim 20 (depends on 16) The communication device of claim 16, wherein an indication of a key and/or an algorithm to be used to decipher the data and/or check the integrity of the data is included in the second signaling.