# US 8,787,247 B2 · Apparatus and methods for transmitting paging messages for peer to peer communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,787,247 B2 - Document ID: US8787247B2 - Status: Granted - Kind: B2 - Application number: 13/381,741 - Filed: 2009-06-30 - Published: 2012-06-21 - Granted: 2014-07-22 - Earliest claimed: 2009-06-30 - Assignees: Nokia Siemens Networks Oy - Applicants: Antti Anton Toskala - Inventors: Antti Anton Toskala - Web page: https://patentgrep.com/patent/US8787247B2 ## CPC - H04B 7/212: Time-division multiple access {[TDMA]} - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 76/14: Direct-mode setup - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W 48/16: Discovering, processing access restriction or access information - H04W 68/00: User notification, e.g. alerting and paging, for incoming communication, change of service or the like - H04W 92/18: between terminal devices - Y02D 30/70: in wireless communication networks - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Apparatus and method for communication are provided. The apparatus is configured to send a message to a network element, the message including information on the establishment of a device-to-device connection with at least one apparatus; and receive from a network element information regarding a timing reference for paging messages between the apparatuses establishing a device-to-device communication. ## Claims ### Claim 1 An apparatus comprising: at least one processor; and at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least: send a message to a network element of a communication system, the message comprising information on establishment of a device-to-device communication with at least one apparatus; and receive from the network element information regarding a timing reference for communicating paging messages with apparatuses of the at least one apparatus establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for receiving packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system the apparatus is connected to. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to send a message comprising an identifier of the at least one apparatus. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to send the message using control channels of the communication system the apparatus is connected to. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to send the message using a physical uplink shared channel. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to utilize the timing reference when sending a paging message to the at least one apparatus. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to receive information comprising different timing references for sending and receiving paging messages with the apparatuses establishing the device-to-device communication. ### Claim 7 A method comprising: sending by an apparatus a message to a network element of a communication system, the message comprising information on establishment of a device-to-device communication with at least one apparatus; and receiving by the apparatus from the network element information regarding a timing reference for communicating paging messages with apparatuses of the at least one apparatus establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for receiving packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system the apparatus is connected to. ### Claim 8 (depends on 7) The method of claim 7, wherein the message comprises an identifier of the at least one apparatus. ### Claim 9 (depends on 7) The method of claim 7, further comprising: sending the message using control channels of the communication system the apparatus is connected to. ### Claim 10 (depends on 7) The method of claim 7, further comprising: utilizing the timing reference when sending a paging message to the at least one apparatus. ### Claim 11 (depends on 7) The method of claim 7, further comprising: receiving information comprising different timing references for sending and receiving paging messages between the apparatuses establishing the device-to-device communication. ### Claim 12 An apparatus comprising: at least one processor; and at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least: receive a message from user equipment of a communication system, the message comprising information on establishment of a device-to-device communication with at least one other user equipment, send a message regarding the establishment to the at least one other user equipment; send information to the user equipment regarding a timing reference for paging messages between the user equipment establishing a device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system the apparatus is connected to. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to determine if a device-to-device communication between user equipment is feasible. ### Claim 14 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to receive a message comprising information on an identifier of the at least one other user equipment. ### Claim 15 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to send information comprising different timing references for sending and receiving paging messages between the user equipment establishing a device-to-device communication. ### Claim 16 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to receive an acknowledgement of the device-to-device communication from the at least one another user equipment. ### Claim 17 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to communicate with the at least one other user equipment via another network element. ### Claim 18 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to exchange information regarding the timing references with another network element. ### Claim 19 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to determine timing references for sending and receiving paging messages between the user equipment establishing the device-to-device communication. ### Claim 20 (depends on 12) The apparatus of claim 12, wherein the at least one memory and the computer program code is configured with the at least one processor to cause the apparatus to determine a communication frequency for sending and receiving paging messages between the user equipment establishing the device-to-device communication. ### Claim 21 A method comprising: receiving a message from user equipment of a communication system, the message comprising information on the establishment of a device-to-device connection with at least one other user equipment, sending a message regarding the establishment to the at least one other user equipment; and sending information regarding a timing reference for paging messages between the user equipment establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system. ### Claim 22 (depends on 21) The method of claim 21, further comprising: determining if the device-to-device communication between the user equipment is feasible. ### Claim 23 (depends on 21) The method of claim 21, further comprising: sending information comprising different timing references for sending and receiving paging messages between the user equipment establishing the device-to-device communication. ### Claim 24 (depends on 21) The method of claim 21, further comprising: determining timing references for sending and receiving paging messages between the user equipment establishing the device-to-device communication. ### Claim 25 (depends on 21) The method of claim 21, further comprising: determining a communication frequency for sending and receiving paging messages between the user equipment establishing the device-to-device communication. ### Claim 26 An apparatus comprising: means for sending a message to a network element of a communication system, the message comprising information on establishment of a device-to-device communication with at least one other apparatus; and means for receiving from a network element information regarding a timing reference for paging messages with the at least one other apparatus establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for receiving packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system the apparatus is connected to. ### Claim 27 An apparatus comprising: means for receiving a message from user equipment of a communication system, the message comprising information on the establishment of a device-to-device communication with at least one other user equipment, means for sending a message to the at least one other user equipment regarding the establishment; and means for sending information regarding a timing reference for paging messages the at least one other user equipment establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system the apparatus is connected to. ### Claim 28 (depends on 27) The apparatus of claim 27, comprising means for determining if a device-to-device communication between user equipment is feasible. ### Claim 29 (depends on 27) The apparatus of claim 27, comprising means for exchanging information regarding the timing references with another network element. ### Claim 30 A non-transitory computer readable memory embodying a program of instructions executable by a processor to perform actions directed at establishing a connection, the actions comprising: sending a message to a network element of a communication system, the message comprising information on establishment of a device-to-device communication with at least one apparatus; and receiving from a network element information regarding a timing reference for paging messages with the at least one apparatus establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for receiving packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system. ### Claim 31 A non-transitory computer readable memory embodying a program of instructions executable by a processor to perform actions directed at establishing a connection, the actions comprising: receiving a message from user equipment of a communication system, the message comprising information on establishment of a device-to-device communication with at least one other user equipment, sending a message to the at least one other user equipment regarding the establishment; and sending information regarding a timing reference for paging messages with the at least one other user equipment establishing the device-to-device communication, wherein the timing reference is non-overlapping with time instants reserved for packets from the communication system, and wherein the timing reference is within a predetermined time instant from time instants reserved for paging messages of the communication system.