Method for controlling power of control channel in time-division scheduling system
A control channel and power control technology, applied in the field of wireless communication, can solve the problems of power control during discontinuous scheduling of control channels, and achieve the effect of improving power control efficiency
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Embodiment 1
[0030] The radio network side of the TD-SCDMA system, one of the 3G standards of the current 3GPP, includes a radio network controller and a node B. In the HSDPA technology of the TD-SCDMA system, when performing radio resource scheduling, Node B first authorizes HS-PDSCH channel resources to the UE through the downlink channel HS-SCCH, and the network side transmits the HS-PDSCH channel, and the UE transmits the HS-PDSCH channel through the uplink channel HS-SICH Feedback information to Node B. Among them, HS-PDSCH is the scheduling resource controlled by Node B, and HS-SCCH and HS-SICH are scheduling control channels. refer to image 3 The subframe structure of the TD-SCDMA system shown, since there are only two switching points in each subframe, the HS-SCCH and HS-SICH are distributed in different subframes, one possibility is that the HS-SCCH and HS-SICH distribution In adjacent subframes, such as figure 2 shown. The method of the present invention will be described i...
Embodiment 2
[0049] In the same system as in the embodiment, the following steps are included, such as Figure 5 Shown:
[0050] Step 501, Node B configures the time interval threshold T for scheduling control channel power control for each cell h and sent to RNC;
[0051] The procedures that may be included are: Physical Shared Channel Reconfiguration procedure (Physical Shared Channel Reconfiguration procedure), in which the "PHYSICALSHARED CHANNEL RECONFIGURATION RESPONSE" message will be used to schedule the time interval threshold for control channel power control and send it to the RNC.
[0052] Step 502, the RNC broadcasts the time interval threshold T h broadcast to all UEs in the cell;
[0053] Other steps are exactly the same as in Example 1.
Embodiment 3
[0055] For a system that only includes eNodeB on the wireless network side, such as the Long Term Evolution (LTE: Long Term Evolution) system in 3GPP, it is configured by the eNodeB and sent to the terminal through high-layer signaling. Different from Embodiments 1 and 2, the configuration of the time interval threshold for power control of the scheduling control channel in this system does not require interaction between network elements, but is configured by the eNB and sent to the UE. Include the following steps, such as Figure 6 Shown:
[0056] Step 601, Node B configures the time interval threshold T for scheduling control channel power control h And send to UE.
[0057] The way of sending the time interval threshold may be broadcast or sent to each terminal separately. That is, the system information is broadcasted in the cell or sent to each UE through procedures such as wireless line establishment.
[0058] Steps 602-607 are exactly the same as steps 403-408 in Em...
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