D2D discovery signal resource allocation method and system and related devices
A technology for discovering signals and resource allocation, applied in wireless communication, electrical components, etc., can solve the problems of missing detection, huge overhead, occupying wireless resources, etc., and achieve the effects of avoiding mutual blindness, improving user experience, and ensuring discovery efficiency
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Embodiment 1
[0127] In an LTE FDD network that supports the D2D discovery function, in the current time window, the traffic load of the cellular network is low, and the number of users who initiate D2D device discovery applications is relatively large. Therefore, the network considers allocating more intensive resources when configuring public resources D2D discovers signal resources to increase the number of D2D devices that users can discover in a short period of time without causing too much impact on the experience of cellular network users.
[0128] The D2D discovery cycle configuration table involved in this embodiment is shown in Table 1:
[0129] Cycle Configuration Index
cycle length
0
5ms
1
10ms
2
20ms
3
40ms
4
80ms
[0130] Table 1
[0131] Specifically, the base station selects a smaller period value of 10 ms in the preset D2D discovery period configuration table (Table 1) for configuration, and notifie...
Embodiment 2
[0138] In an LTE FDD network that supports the D2D discovery function, in the current time window, the traffic load of the cellular network is high, and the number of users who initiate D2D device discovery applications is small, so the system considers the allocation of public resources to be sparser D2D discovery signal resources are used to ensure the service support for D2D discovery users, and will not cause too much impact on the experience of cellular network users.
[0139] The D2D discovery cycle configuration table involved in this embodiment is shown in Table 2:
[0140] Cycle Configuration Index
cycle length
0
320ms
1
640ms
2
1280ms
[0141] Table 2
[0142] Specifically, the base station selects a longer period value of 640ms in the preset D2D discovery period configuration table (Table 2) for configuration, and notifies the corresponding period configuration index "1" to the D2D discovery period in the cell th...
Embodiment 3
[0152] In an LTE FDD network that supports D2D discovery, the traffic load of the cellular network is high in the current time window, and the number of users who initiate D2D device discovery applications is small. Therefore, the base station considers the allocation of public resources to be more sparse D2D discovery signal resources are used to ensure the service support for D2D discovery users, and will not cause too much impact on the experience of cellular network users.
[0153] The D2D discovery cycle configuration table involved in this embodiment is shown in Table 3:
[0154] Cycle Configuration Index
cycle length
0
320ms
1
640ms
2
1280ms
3
5120ms
[0155] table 3
[0156] Specifically, the base station selects a longer period value of 1280 ms in the preset D2D discovery period configuration table (Table 3) for configuration, and notifies the corresponding period configuration index "2" to the D2D disco...
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