Peer-to-peer communication in ad hoc wireless network

A method comprising:

• receiving at a first wireless device a frame from a second wireless device, wherein the frame includes a call request message that requests setup of a call from the second wireless device as a calling device to the first wireless device as a called device;
• extracting an identifier of an individual peer from the received frame;
• determining whether the extracted identifier is included in a peer-to-peer (PTP) list of identifiers, wherein the PTP list comprises identification of peers that the first wireless device expects to be in communication with over an ad-hoc network, wherein the PTP list does not comprise all of the peers available to communicate with within the ad-hoc network;
• and
• sending a response to the second wireless device based on whether the extracted identifier is included in the PTP list.

A non-transitory computer readable-medium, with instructions stored thereon, comprising:

• instructions for receiving at a first wireless device a frame from a second wireless device, wherein the frame includes a call request message that requests setup of a call from the second wireless device as a calling device to the first wireless device as a called device;
• instructions for extracting an identifier of an individual peer from the received frame;
• instructions for determining whether the extracted identifier is included in a peer-to-peer (PTP) list of identifiers, wherein the PTP list comprises identification of peers that the first wireless device expects to be in communication with over an ad-hoc network, wherein the PTP list does not comprise all of the peers available to communicate with within the ad-hoc network;
• and
• instructions for sending a response to the second wireless device based on whether the extracted identifier is included in the PTP list.

A method of operating a given wireless device in an ad hoc wireless network, comprising:

• forming a packet including a user-specific identifier for a target wireless device for peer-to-peer communication, wherein the user-specific identifier includes a hash of a phone number for the target wireless device and/or a pre-shared key (PSK);
• broadcasting the packet to other wireless devices to request a session address of the target wireless device that is different than the user-specific identifier and which is not yet known by the given wireless device;
• and
• receiving a response including the session address of the target wireless device.

A wireless device for performing discovery of a session address in an ad hoc wireless network, comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• form a packet including a user-specific identifier for a target wireless device for peer-to-peer communication, wherein the user-specific identifier includes a hash of a phone number for the target wireless device and/or a pre-shared key (PSK);
• broadcast the packet to other wireless devices to request the session address of the target wireless device that is different than the user-specific identifier and which is not yet known by the wireless device;
• and
• receive a response including the session address of the target wireless device.

A non-transitory computer-readable medium containing instructions stored thereon, which, when executed by a wireless device for performing discovery of a session address in an ad hoc wireless network, cause the wireless device to perform operations, the instructions comprising:

• program code to form a packet including a user-specific identifier for a target wireless device for peer-to-peer communication, wherein the user-specific identifier includes a hash of a phone number for the target wireless device and/or a pre-shared key (PSK);
• program code to broadcast the packet to other wireless devices to request the session address of the target wireless device that is different than the user-specific identifier and which is not yet known by the wireless device;
• and
• program code to receive a response including the session address of the target wireless device.

A method of operating a communication device associated with a target wireless device in an ad hoc wireless network, comprising:

• receiving, from a wireless device, a packet that includes a user-specific identifier for the target wireless device for peer-to-peer communication, wherein the user-specific identifier includes a hash of a phone number for the target wireless device and/or a pre-shared key (PSK);
• interpreting the packet as a request for a session address of the target wireless device that is different than the user-specific identifier and which is not yet known by the wireless device;
• and
• transmitting, in response to the received packet, a response including the session address of the target wireless device.

A communication device associated with a target wireless device in an ad hoc wireless network, comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• receive, from a wireless device, a packet that includes a user-specific identifier for the target wireless device for peer-to-peer communication, wherein the user-specific identifier includes a hash of a phone number for the target wireless device-and/or a pre-shared key (PSK);
• interpret the packet as a request for the session address of the target wireless device that is different than the user-specific identifier and which is not yet known by the wireless device;
• and
• transmit, in response to the received packet, a response including the session address of the target wireless device.