Device-to-device communication method and apparatus

摘要

Provided are methods and apparatuses for device-to-device (D2D) communication. The method includes: configuring dedicated subframe(s) according to cellular uplink hybrid automatic repeat request (HARQ) process(es), the dedicated subframe(s) being used for D2D communication (S302); generating indication signaling according to the configuration of the dedicated subframe(s), wherein the indication signaling is used for indicating the dedicated subframe(s) (S304); and transmitting the indication signaling to user equipment (S306). The technical solutions can ensure the reliability of data transmission and the compatibility of cellular transmission and D2D communication that are performed simultaneously, and improve the user experience.

主权项

1. A method used for device-to-device communication, comprising:
configuring 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; generating indication signaling according to the configuration of the dedicated subframe(s), wherein the indication signaling is configured to indicate the dedicated subframe(s); transmitting the indication signaling to user equipment; indicating the dedicated subframe(s) of the device-to-device communication 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; wherein 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); and transmitting the indication signal configured to indicate the bitmap to the user equipment.