# US 2019/0174296 A1 · Scheme for communication and transmitting discovery signal in mobile communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174296 A1 - Document ID: US20190174296A1 - Status: Published application - Kind: A1 - Application number: 16/264,007 - Filed: 2019-01-31 - Published: 2019-06-06 - Earliest claimed: 2014-10-01 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Soeng-Hun KIM; Kyeong-In JEONG; Sang-Bum KIM; You-Min LEE - Web page: https://patentgrep.com/patent/US20190174296A1 ## CPC - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W 88/04: adapted for relaying to or from another terminal or user - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W 88/08: Access point devices - 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 for performing communication by a first communication device in a mobile communication system is provided. The method includes determining whether the first communication device is proximate to a nearby second communication device through a short-range communication link, enabling one of a first long-range communication link with a network or the short-range communication link with the second communication device based on the determination as to whether the first communication device is proximate to the second communication device, and receiving data from the network through the enabled one of the first long-range communication link with the network or the short-range communication link. ## Claims ### Claim 1 A method for communicating by a second communication device in a communication system, the method comprising: transmitting a request for long-range communication support information to a first communication device through a short-range communication link; receiving the long-range communication support information from the first communication device; and accessing to an internet using the long-range communication support information received from the first communication device, wherein the long-range communication support information includes cellular network access information, wherein the cellular network access information includes a security parameter of the first communication device and at least one of an identifier of the first communication device or radio configuration information of the first communication device, and wherein the security parameter includes information on a security key or information on a counter used in scrambling or descrambling. ### Claim 2 (depends on 1) The method of claim 1, wherein the cellular network information further includes information on a serving cell of the first communication device to access to the internet. ### Claim 3 (depends on 2) The method of claim 2, wherein the information on the serving cell includes at least one of a radio frequency channel number, a cell identifier of the serving cell, downlink feedback channel configuration information of the serving cell, a system frame number of the serving cell, or random access channel configuration information of the serving cell. ### Claim 4 (depends on 1) The method of claim 1, wherein the radio configuration information includes at least one of physical layer configuration information, media access control (MAC) configuration information, or radio bearer configuration information configured in the first communication device. ### Claim 5 (depends on 1) The method of claim 1, wherein the short-range communication link comprises a Bluetooth communication link or a Wi-Fi communication link. ### Claim 6 (depends on 1) The method of claim 1, wherein the second communication device comprises a wearable communication device. ### Claim 7 A second communication device in a communication system, the second communication device comprising: at least one processor configured to: transmit a request for long-range communication support information to a first communication device through a short-range communication link, receive the long-range communication support information from the first communication device, and access to an internet using the long-range communication support information received from the first communication device; and a communication unit configured to communicate data through the short-range communication link under the control of the at least one processor, wherein the long-range communication support information includes cellular network access information, wherein the cellular network access information includes a security parameter of the first communication device and at least one of an identifier of the first communication device or radio configuration information of the first communication device, and wherein the security parameter includes information on a security key or information on a counter used in scrambling or descrambling. ### Claim 8 (depends on 7) The second communication device of claim 7, wherein the cellular network access information further includes information on a serving cell of the first communication device to access to the internet. ### Claim 9 (depends on 8) The second communication device of claim 8, wherein the information on the serving cell includes at least one of a radio frequency channel number of the serving cell, a cell identifier of the serving cell, downlink feedback channel configuration information of the serving cell, a system frame number of the serving cell, or random access channel configuration information of the serving cell. ### Claim 10 (depends on 7) The second communication device of claim 7, wherein the radio configuration information includes at least one of physical layer configuration information, media access control (MAC) configuration information, or radio bearer configuration information configured in the first communication device. ### Claim 11 (depends on 7) The second communication device of claim 7, wherein the short-range communication link comprises a Bluetooth communication link or a Wi-Fi communication link. ### Claim 12 (depends on 7) The second communication device of claim 7, wherein the second communication device comprises a wearable communication device. ### Claim 13 A method for communicating by a first communication device in a communication system, the method comprising: receiving a request for long-range communication support information from a second communication device through a short-range communication link; transmitting the long-range communication support information to the second communication device; and relaying an access from the second communication device to an internet, using the long-range communication support information transmitted to the first communication device, wherein the long-range communication support information includes cellular network access information, and wherein the cellular network access information includes a security parameter of the first communication device and at least one of an identifier of the first communication device or radio configuration information of the first communication device, and wherein the security parameter includes information on a security key or information on a counter used in scrambling or descrambling. ### Claim 14 (depends on 13) The method of claim 13, wherein the cellular network access information further includes information on a serving cell of the first communication device to access to the internet. ### Claim 15 (depends on 14) The method of claim 14, wherein the information on the serving cell includes at least one of a radio frequency channel number of the serving cell, a cell identifier of the serving cell, downlink feedback channel configuration information of the serving cell, a system frame number of the serving cell, or random access channel configuration information of the serving cell. ### Claim 16 (depends on 13) The method of claim 13, wherein the radio configuration information includes at least one of physical layer configuration information, media access control (MAC) configuration information, or radio bearer configuration information configured in the first communication device. ### Claim 17 A first communication device in a communication system, the first communication device comprising: at least one processor configured to: receive a request for long-range communication support information from a second communication device through a short-range communication link, transmit the long-range communication support information to the second communication device, and relay an access from the second communication device to an internet, using the long-range communication support information transmitted to the first communication device; and a communication unit configured to communicate data through the short-range communication link under the control of the at least one processor, wherein the long-range communication support information includes cellular network access information, wherein the cellular network access information includes a security parameter of the first communication device and at least one of an identifier of the first communication device or radio configuration information of the first communication device, and wherein the security parameter includes information on a security key or information on a counter used in scrambling or descrambling. ### Claim 18 (depends on 17) The first communication device of claim 17, wherein the cellular network access information further includes information on a serving cell of the first communication device to access to the internet. ### Claim 19 (depends on 18) The first communication device of claim 18, wherein the information on the serving cell includes at least one of a radio frequency channel number of the serving cell, a cell identifier of the serving cell, downlink feedback channel configuration information of the serving cell, a system frame number of the serving cell, or random access channel configuration information of the serving cell. ### Claim 20 (depends on 17) The first communication device of claim 17, wherein the radio configuration information includes at least one of physical layer configuration information, media access control (MAC) configuration information, or radio bearer configuration information configured in the first communication device.