# US 10,485,046 B2 · Method for using legacy Wi-Fi and Wi-Fi P2P simultaneously > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,485,046 B2 - Document ID: US10485046B2 - Status: Granted - Kind: B2 - Application number: 15/912,044 - Filed: 2018-03-05 - Published: 2018-07-12 - Granted: 2019-11-19 - Earliest claimed: 2011-09-14 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Bu-Seop Jung; Jung-Hun Lee - Web page: https://patentgrep.com/patent/US10485046B2 ## CPC - H04W 76/15: Setup of multiple wireless link connections - H04L 67/104: Peer-to-peer [P2P] networks - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 48/16: Discovering, processing access restriction or access information - H04W 52/0241: {where no transmission is received, e.g. out of range of the transmitter} - H04W 52/0261: {managing power supply demand, e.g. depending on battery level} - H04W 76/14: Direct-mode setup - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 16/20: for indoor coverage or short range network deployment - H04W 16/225: {for indoor or short range network} - H04W 28/021: {in wireless networks with changing topologies, e.g. ad-hoc networks (self-organizing networks H04W84/18)} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W 84/18: Self-organising networks, e.g. ad-hoc networks or sensor networks - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - 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 A method for using legacy Wi-Fi and Wi-Fi Peer-to-Peer (P2P) simultaneously is provided. The method includes entering a device discovery process of Wi-Fi P2P, if use of a Wi-Fi P2P function is requested while using a legacy Wi-Fi function, acquiring a Group Owner (GO) right of Wi-Fi P2P in the device discovery process, performing a listen state over the same channel as a channel where the legacy Wi-Fi function is in use, through the acquisition of the GO right, and performing a search state over a social channel of Wi-Fi P2P, and repeating the listen state and the search state until the device discovery process is ended. ## Claims ### Claim 1 An electronic device for connecting with a Wi-Fi network, the electronic device comprising: a communication circuitry; and at least one processor configured to: establish a legacy Wi-Fi connection via the communication circuitry, receive a request for a Wi-Fi peer-to-peer (P2P) connection during the legacy Wi-Fi connection, identify a channel used for the legacy Wi-Fi connection, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi connection, obtain a Group Owner (GO) right of Wi-Fi P2P, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi connection, and after the obtaining of the GO right during the legacy Wi-Fi connection, perform a listen state on the channel identified as being used for the legacy Wi-Fi connection and perform a search state on a social channel of Wi-Fi P2P, wherein the performance of the listen state and the performance of the search state are repeated until the Wi-Fi P2P connection is established, while the GO right is maintained during the legacy Wi-Fi connection. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the at least one processor is further configured to enable an autonomous GO mode in a same channel as the channel used for the legacy Wi-Fi connection. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the at least one processor is further configured to disable the autonomous GO mode if the device discovery process is ended. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the channel used for the legacy Wi-Fi connection is one channel among any of non-social channels and the social channels. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the social channel includes at least one of a channel #1, a channel #6, or a channel #11. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the at least one processor is further configured to enter the device discovery process based on at least one of a menu selection or an execution of a predetermined application. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the at least one processor is further configured to establish the Wi-Fi P2P connection during the legacy Wi-Fi connection. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the identifying of the channel used for the legacy Wi-Fi connection and the obtaining of the GO right of Wi-Fi P2P are performed at the same time. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein the identifying of the channel used for the legacy Wi-Fi connection is performed before the obtaining of the GO right of Wi-Fi P2P. ### Claim 10 An electronic device for connecting with a Wi-Fi network, the electronic device comprising: a communication circuitry; and at least one processor configured to: enter a legacy Wi-Fi station mode via the communication circuitry, receive a request for a Wi-Fi peer-to-peer (P2P) connection during the legacy Wi-Fi station mode, identify a channel used for the legacy Wi-Fi station mode, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode, obtain a Group Owner (GO) right of Wi-Fi P2P, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode, and after the obtaining of the GO right during the legacy Wi-Fi station mode, enter a listen mode on the channel identified as being used for the legacy Wi-Fi station mode, wherein a listen state is performed without performing a search state in the listen mode, and wherein the performance of the listen state is repeated until the Wi-Fi P2P connection is established, while the GO right is maintained during the legacy Wi-Fi station mode. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein the GO right of Wi-Fi P2P is obtained as an autonomous GO mode in a same channel used for the legacy Wi-Fi station mode. ### Claim 12 (depends on 10) The electronic device of claim 10, wherein the at least one processor is further configured to perform wireless data communication using the Wi-Fi P2P connection during execution of the legacy Wi-Fi station mode. ### Claim 13 (depends on 10) The electronic device of claim 10, wherein the at least one processor is further configured to receive the request from at least one of a user or another electronic device. ### Claim 14 (depends on 10) The electronic device of claim 10, wherein the request comprises at least one of a P2P Information Element (IE), a Wi-Fi simple Configuration (WSC) IE, or a Supplemental Registration (Supp Reg) IE. ### Claim 15 An electronic device for connecting with Wi-Fi network, the electronic device comprising: a communication circuitry; and at least one processor configured to: enter a legacy Wi-Fi station mode via the communication circuitry, receive a request for a Wi-Fi peer-to-peer (P2P) connection during the legacy Wi-Fi station mode, identify a channel used for the legacy Wi-Fi station mode, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode, obtain a Group Owner (GO) right of Wi-Fi P2P, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode, and after the obtaining of the GO right during the legacy Wi-Fi station mode, enter a listen mode on the channel identified as being used for the legacy Wi-Fi station mode, wherein a first period for performing a listen state and a second period for a sleep mode are repeatedly provided in the listen mode, and wherein the performance of the listen state and the performance of the sleep mode are repeated until the Wi-Fi P2P connection is established, while the GO right is maintained during the legacy Wi-Fi station mode. ### Claim 16 (depends on 15) The electronic device of claim 15, wherein the sleep mode is using an opportunistic power save method. ### Claim 17 (depends on 15) The electronic device of claim 15, wherein the sleep mode is performed stopping the listen state. ### Claim 18 (depends on 15) The electronic device of claim 15, wherein the second period is set as a Client Traffic Window (CTWindow) in a period set for the sleep mode. ### Claim 19 (depends on 15) The electronic device of claim 15, wherein the second period corresponds to a period which is about a half of a Target Beacon Transmission Time (TBTT) period. ### Claim 20 A non-transitory computer-readable medium storing instructions which, when executed by at least one processor of an electronic device, cause the at least one processor to perform operations comprising: establishing, by the electronic device, a legacy Wi-Fi connection; receiving, by the electronic device, a request for a Wi-Fi peer-to-peer (P2P) connection during the legacy Wi-Fi connection; identifying, by the electronic device, a channel used for the legacy Wi-Fi connection, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi connection; obtaining, by the electronic device, a Group Owner (GO) right of Wi-Fi P2P, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi connection; and after the obtaining of the GO right during the legacy Wi-Fi connection, performing, by the electronic device, a listen state on the channel identified as being used for the legacy Wi-Fi connection and performing, by the electronic device, a search state on a social channel of Wi-Fi P2P, wherein the performing of the listen state and the performing of the search state are repeated until the Wi-Fi P2P connection is established, while the GO right is maintained during the legacy Wi-Fi connection. ### Claim 21 A non-transitory computer-readable medium storing instructions which, when executed by at least one processor of an electronic device, cause the at least one processor to perform operations comprising: entering, by the electronic device, a legacy Wi-Fi station mode; receiving, by the electronic device, a request for a Wi-Fi peer-to-peer (P2P) connection during the legacy Wi-Fi station mode; identifying, by the electronic device, a channel used for the legacy Wi-Fi station mode, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode; obtaining, by the electronic device, a Group Owner (GO) right of Wi-Fi P2P, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode; and after the obtaining of the GO right during the legacy Wi-Fi station mode, entering, by the electronic device, a listen mode on the channel identified as being used for the legacy Wi-Fi station mode, wherein a listen state is performed without performing a search state in the listen mode, and wherein the performance of the listen state is repeated until the Wi-Fi P2P connection is established, while the GO right is maintained during the legacy Wi-Fi station mode. ### Claim 22 A non-transitory computer-readable medium storing instructions which, when executed by at least one processor of an electronic device, cause the at least one processor to perform operations comprising: entering, by the electronic device, a legacy Wi-Fi station mode; receiving, by the electronic device, a request for a Wi-Fi peer-to-peer (P2P) connection during the legacy Wi-Fi station mode; identifying, by the electronic device, a channel used for the legacy Wi-Fi station mode, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode; obtaining, by the electronic device, a Group Owner (GO) right of Wi-Fi P2P, in response to the request for the Wi-Fi P2P connection during the legacy Wi-Fi station mode; and after the obtaining of the GO right during the legacy Wi-Fi station mode, entering, by the electronic device, a listen mode on the channel identified as being used for the legacy Wi-Fi, wherein a first period for performing a listen state and a second period for a sleep mode are repeatedly provided in the listen mode, and wherein the performance of the listen state and the performance of the sleep mode are repeated until the Wi-Fi P2P connection is established, while the GO right is maintained during the legacy Wi-Fi station mode.