TRIGGERING OF DIRECT DISCOVERY SIGNALS

摘要

Embodiments of systems and methods enabling Device-to-Device (D2D) discovery in a cellular network assisted D2D communication system are disclosed. In some embodiments, a method of operation of a wireless device comprises receiving at least one trigger for D2D discovery from a controlling node of the wireless device in a cellular communications network. The method of operation of the wireless device further comprises transmitting multiple transmission instances of a discovery signal of the wireless device for a D2D discovery event in response to the at least one trigger using resources selected from a group consisting of: different time resources, different frequency resources, different code resources, different time and frequency resources, different time and code resources, different frequency and code resources, and different time, frequency, and code resources. In this manner, detection of the discovery signal by other proximate wireless devices is substantially improved.

主权项

1. A method of operation of a wireless device to enable Device-to-Device, D2D, discovery, comprising:
receiving at least one trigger for D2D discovery from a controlling node of the wireless device in a cellular communications network; and transmitting multiple transmission instances of a discovery signal of the wireless device for a D2D discovery event in response to the at least one trigger using resources selected from a group consisting of: different time resources, different frequency resources, different code resources, different time and frequency resources, different time and code resources, different frequency and code resources, and different time, frequency, and code resources.