Device-to-device communication method and apparatus

A method used for device-to-device communication, comprising:

• receiving, by a user equipment, a dedicated subframe(s) configuration indication signaling, wherein the indication signaling is configured to indicate dedicated subframe(s) for device-to-device communication, and the dedicated subframe(s) is configured according to cellular uplink hybrid automatic repeat request (HARQ) process(es), cellular communication and the device-to-device communication are scheduled to different resources;
• wherein the dedicated subframe(s) of the device-to-device communication is indicated by a bitmap, wherein each bit in the bitmap is configured to indicate whether subframe(s) corresponding to the cellular uplink HARQ process is configured to be the dedicated subframe(s);
• or whether a subframe in a radio frame is configured to be a dedicated subframe;
• the length of the bitmap is the same as the number of cellular uplink HARQ processes and each bit in the bitmap is configured to indicate whether subframe(s) corresponding to one cellular uplink HARQ process is configured to be the dedicated subframe(s);
• receiving, by the user equipment, the indication signal configured to indicate the bitmap;
• and
• performing, by the user equipment, device-to-device communication in the dedicated subframe(s).

An apparatus used for device-to-device communication, comprising a hardware processor configured to execute program units stored on a memory, wherein the program units comprises:

• a configuration module, adapted to configure dedicated subframe(s) according to cellular uplink hybrid automatic repeat request (HARQ) process(es), wherein the dedicated subframe(s) is used for device-to-device communication, wherein cellular communication and the device-to-device communication are scheduled to different resources;
• wherein the dedicated subframe(s) of the device-to-device communication is indicated by a bitmap, wherein each bit in the bitmap is configured to indicate whether subframe(s) corresponding to the cellular uplink HARQ process is configured to be the dedicated subframe(s);
• or whether a subframe in a radio frame is configured to be a dedicated subframe;
• the length of the bitmap is the same as the number of cellular uplink HARQ processes and each bit in the bitmap is configured to indicate whether subframe(s) corresponding to one cellular uplink HARQ process is configured to be the dedicated subframe(s);
• a signaling generating module, adapted to generate an indication signaling according to the dedicated subframe(s) configured by the configuration module, wherein the indication signaling is used to indicate the dedicated subframe(s) of the device-to-device communication;
• and
• a transmitting module, adapted to send the indication signaling generated by the signaling generating module to a user equipment, wherein the indication signaling is configured to indicate the bitmap.

An apparatus used for device-to-device communication, comprising a hardware processor configured to execute program units stored on a memory, wherein the program units comprises:

• a receiving module, adapted to receive a dedicated subframe configuration indication signaling, wherein the indication signaling is configured to indicate dedicated subframe(s) for device-to-device communication, and the dedicated subframe(s) is configured according to cellular uplink hybrid automatic repeat request (HARQ) process(es), wherein cellular communication and the device-to-device communication are scheduled to different resources;
• wherein the dedicated subframe(s) of the device-to-device communication is indicated by a bitmap, wherein each bit in the bitmap is configured to indicate whether subframe(s) corresponding to the cellular uplink HARQ process is configured to be the dedicated subframe(s);
• or whether a subframe in a radio frame is configured to be a dedicated subframe;
• the length of the bitmap is the same as the number of cellular uplink HARQ processes and each bit in the bitmap is configured to indicate whether subframe(s) corresponding to one cellular uplink HARQ process is configured to be the dedicated subframe(s);
• the a receiving module is further configured to receive the indication signal used for indicating the bitmap;
• and
• a communication module, adapted to perform device-to-device communication in the dedicated subframe(s).