# US 9,521,617 B2 · Method and apparatus for providing peer-to-peer communication with network connection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,521,617 B2 - Document ID: US9521617B2 - Status: Granted - Kind: B2 - Application number: 14/829,926 - Filed: 2015-08-19 - Published: 2015-12-31 - Granted: 2016-12-13 - Earliest claimed: 2009-09-18 - Assignees: InterDigital Patent Holdings, Inc. - Applicants: InterDigital Patent Holdings, Inc. - Inventors: Sudheer A. Grandhi; Marian Rudolf - Web page: https://patentgrep.com/patent/US9521617B2 ## CPC - H04W 52/0209: {in terminal devices} - H04L 67/104: Peer-to-peer [P2P] networks - H04W 76/23: Manipulation of direct-mode connections - H04W 76/18: Management of setup rejection or failure - H04W 88/02: Terminal devices - H04W 88/08: Access point devices - H04W 92/18: between terminal devices - 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 and apparatus may be used for peer-to-peer communication. The method and apparatus may allow for network connectivity during the peer-to-peer communication session. The network connectivity may be provided via Scheduled and/or Unscheduled AP Connection times/periods. A station (STA) may be configured to negotiate access point (AP) Connection times/periods with a peer STA for a direct link which may be on a basic service set (BSS) channel or on a non-BSS channel. The STAs may communicate with the AP during the agreed AP Connection times/periods and return to the direct link for peer-to-peer communication. ## Claims ### Claim 1 A method for use in a station (STA), the method comprising: negotiating with a first STA to establish one or more scheduled access periods of a transmission time interval during which the STA has access to a first channel using a first transceiver configured in accordance with IEEE 802.11ad; establishing a wakeup schedule for power save mode (PSM), wherein at least one wake time of the wake schedule aligns to at least one of the one or more scheduled access periods; communicating with the second STA on a direct link using a second transceiver configured in accordance with IEEE 802.11ac, wherein the direct link is on a second channel; entering the PSM; and communicating with the first STA or continuing the communication with the second STA on the first channel during the at least one scheduled access period aligned to the at least one wake time of the wake schedule. ### Claim 2 (depends on 1) The method of claim 1, further comprising: transmitting a first peer-to-peer communication frame to the second STA to establish the wakeup schedule; and receiving a second peer-to-peer communication frame, from the second STA, in response to the first peer-to-peer communication frame. ### Claim 3 (depends on 2) The method of claim 2, wherein the first peer-to-peer communication frame is a tunneled direct link setup (TDLS) Peer PSM Request frame. ### Claim 4 (depends on 2) The method of claim 2, wherein the second peer-to-peer communication frame is a tunneled direct link setup (TDLS) Peer PSM Response frame. ### Claim 5 (depends on 2) The method of claim 2, wherein the first peer-to-peer communication frame includes the wakeup schedule, and wherein the second peer-to-peer communication frame includes a status code that indicates acceptance of the wakeup schedule. ### Claim 6 (depends on 5) The method of claim 5, wherein entering the PSM comprises entering the PSM based on the wakeup schedule. ### Claim 7 (depends on 2) The method of claim 2, wherein the first peer-to-peer communication frame is transmitted transparently through the first STA or directly to the second STA. ### Claim 8 (depends on 1) The method of claim 1, wherein the first STA includes an access point (AP). ### Claim 9 (depends on 1) The method of claim 1, wherein negotiating with a first STA to establish one or more scheduled access periods comprises: negotiating with the first STA so as to align the at least one scheduled access period with the at least one wake time. ### Claim 10 A station (STA) comprising: first and second transceivers configured in in accordance with IEEE 802.11ad and IEEE 802.11ac, respectively; and a processor configured to: negotiate with a first to establish one or more scheduled access periods of a transmission time interval during which the STA has access to a first channel using the first transceiver; establish a wakeup schedule for power save mode (PSM), wherein at least one wake time of the wake schedule aligns to at least one of the one or more scheduled access periods; communicating with the second STA direct link using the second transceiver, wherein the direct link is on a second channel; cause the STA to enter the PSM; and communicate with the first STA or continue the communication with the second STA on a first channel during the at least one scheduled access period aligned to the at least one wake time of the wake schedule. ### Claim 11 (depends on 10) The STA of claim 10, wherein any of the first and second transceivers is configured to: transmit a first peer-to-peer communication frame to the second STA to establish the wakeup schedule; and receive a second peer-to-peer communication frame, from the second STA, in response to the first peer-to-peer communication frame. ### Claim 12 (depends on 11) The STA of claim 11, wherein the first peer-to-peer communication frame is a tunneled direct link setup (TDLS) Peer PSM Request frame. ### Claim 13 (depends on 11) The STA of claim 11, wherein the second peer-to-peer communication frame is a tunneled direct link setup (TDLS) Peer PSM Response frame. ### Claim 14 (depends on 11) The STA of claim 11, wherein the first peer-to-peer communication frame includes the wakeup schedule, and wherein the second peer-to-peer communication frame includes a status code that indicates acceptance of the wakeup schedule. ### Claim 15 (depends on 14) The STA of claim 14, wherein the processor is further configured to cause the STA to enter the PSM based on the wakeup schedule. ### Claim 16 (depends on 11) The STA of claim 11, wherein the first peer-to-peer communication frame is transmitted transparently through the first STA or directly to the second STA. ### Claim 17 (depends on 10) The STA of claim 10, wherein the first STA includes an access point (AP). ### Claim 18 (depends on 10) The STA of claim 10, wherein the processor being configured to negotiate with a first STA to establish one or more scheduled access periods comprises the processor being configured to: negotiate with the first STA so as to align the at least one scheduled access period with the at least one wake time.