Method for implementing mutual discovery of D2D terminal and terminal
A terminal and discovery cycle technology, applied in access restrictions, electrical components, wireless communication, etc., can solve problems such as no direct D2D
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Embodiment 1
[0110] In this embodiment, the maximum number of D2D terminals in the D2D group is 8, and the frequency domain width f of the discovery window is 4, that is, v=2. index) to determine the position for sending the discovery reference signal in each discovery cycle. It should be noted that in a discovery cycle, the D2D terminal should detect the discovery reference signals of other D2D terminals in the group during the period other than sending the discovery reference signal by the D2D terminal, which will not be repeated here. The implementation steps of mutual discovery of D2D terminals in this embodiment are as follows:
[0111] Step 510: The wireless network notifies the terminal which has just joined the D2D group of the ID of the current D2D group, the index of the terminal in the group, and the configuration of discovery reference signal resources of the current D2D group through signaling.
[0112] For ease of description without loss of generality, assume that the index...
Embodiment 2
[0130] In this embodiment, the maximum number of D2D terminals in the D2D group is 8, the frequency domain width f of the discovery window is 4, that is, v=2, and the D2D terminal determines the location to send the discovery reference signal by receiving signaling from the wireless network. It should be noted that in a discovery cycle, the D2D terminal should detect the discovery reference signals of other D2D terminals in the group during the period other than sending the discovery reference signal by the D2D terminal, which will not be repeated here. The implementation steps of mutual discovery of D2D terminals in this embodiment are as follows:
[0131] Step 610: The wireless network notifies the terminal which has just joined the D2D group of the ID of the current D2D group, the index of the terminal in the group, and the configuration of discovery reference signal resources of the current D2D group through signaling.
[0132] For ease of description without loss of gener...
Embodiment 3
[0153] In this embodiment, the maximum number of D2D terminals in the D2D group is 8, and the frequency domain width f of the discovery window is 4, that is, v=2. The position at which the discovery reference signal is sent determines the positions at which the discovery reference signal is sent several times in the current discovery cycle. It should be noted that in a discovery cycle, the D2D terminal should detect the discovery reference signals of other D2D terminals in the group during the period other than sending the discovery reference signal by the D2D terminal, which will not be repeated here. The implementation steps of mutual discovery of D2D terminals in this embodiment are as follows:
[0154] Step 710: The wireless network notifies the terminal which has just joined the D2D group of the discovery reference signal resource configuration of the D2D group through signaling.
[0155] For ease of description without loss of generality, assume that the time width of t...
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