Device, system, method and recording medium for generating or processing communication frame

A frame generating method performed by a device for communicating with another device via a communication circuit according to a specific communication protocol, comprising:

• generating a frame based on a frame format defined by the communication protocol;
• and
• generating a beacon frame so that at least one of a plurality of fields specified by a beacon frame format defined by the communication protocol is omitted, and
• sending the generated beacon frame to the other device via the communication circuit,
• wherein the beacon frame format indicates that a payload of a beacon frame includes a device identification information field, a plurality of access phase information fields, and a MAC Capability field,
• in the case that other device is being connected to the device, the MAC Capability field is omitted in the beacon frame, and
• in the case that the device does not allow a connection with the other device, at least one of the plurality of access phase information fields is omitted in the beacon frame.

A non-transitory computer-readable recording medium for recording a computer program controlling a device for communicating with another device via a communication circuit according to a specific communication protocol, the program causing the device to perform steps of:

• generating a frame based on a frame format defined by the communication protocol;
• generating a beacon frame so that at least one of a plurality of fields specified by a beacon frame format defined by the communication protocol is omitted;
• and
• sending the generated beacon frame to the other device via the communication circuit,
• wherein the beacon frame format indicates that a payload of a beacon frame includes a device identification information field, a plurality of access phase information fields, and a MAC Capability field,
• in the case that the other device is being connected to the device, the MAC Capability field is omitted in the beacon frame, and
• in the case that the device does not allow a connection with the other device, at least one of the plurality of access phase information fields is omitted in the beacon frame.

A frame generating device for generating frames to communicate with other devices via a communication circuit according to a specific communication protocol, comprising:

• a memory configured to store history information on history of connections between the frame generating device and the other devices,
• wherein the frame generating device generates a frame based on a frame format defined by the communication protocol,
• the frame generating device generates a beacon frame so that at least one of a plurality of fields specified by a beacon frame format defined by the communication protocol is omitted, and
• the frame generating device sends the generated beacon frame to the other devices via the communication circuit,
• wherein the frame generating device determines one or more fields to be omitted of the plurality of fields specified by the beacon frame format defined by the communication protocol based on the history information, and generates a beacon frame so that the determined one or more frames are omitted.