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US 10,129,833 B2Granted
Power control method, apparatus, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsXin Tang, Xiaoqing Liu, Yuejun Wei
Life of this patent
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Abstract
A power control method, apparatus, and system is described. First outer loop power control is performed according to an actual hard metric and a preset target hard metric to adjust a target soft metric required by second outer loop power control, to obtain an adjusted target soft metric. Therefore, this ensures that when the adjusted target soft metric is converged, the target hard metric can be correctly converged to achieve target quality required by a system.
Claims16
A power control method comprising:
- acquiring an actual hard metric;
- and
- performing first outer loop power control according to the actual hard metric and a preset target hard metric to adjust a target soft metric, to obtain an adjusted target soft metric, wherein a second outer loop power control adjusts a target signal-to-interference ratio (SIR) according to an actual soft metric and the adjusted target soft metric;
- wherein when a magnitude of the target soft metric is inversely proportional to a status of target quality, performing the first outer loop power control comprises:
- determining, by a comparison, whether the actual hard metric is greater than the preset target hard metric;
- and
- when the actual hard metric is greater than the preset target hard metric, decreasing the target soft metric, or when the actual hard metric is not greater than the preset target hard metric, increasing the target soft metric;
- or
- wherein when a magnitude of the target soft metric is directly proportional to a status of target quality, performing the first outer loop power control comprises:
- determining, by a comparison, whether the actual hard metric is greater than the preset target hard metric;
- and
- when the actual hard metric is greater than the preset target hard metric, increasing the target soft metric, or when the actual hard metric is not greater than the preset target hard metric, decreasing the target soft metric.
9 more elements
A power control apparatus comprising:
- a receiver, configured to acquire an actual hard metric;
- a processor;
- and
- a memory storing a program to be executed by the processor, the program comprising instructions for performing first outer loop power control according to the actual hard metric and a preset target hard metric to adjust a target soft metric, to obtain an adjusted target soft metric, wherein a second outer loop power control adjusts a target signal-to-interference ratio (SIR) according to an actual soft metric and the adjusted target soft metric;
- wherein the instructions for performing the first outer loop power control comprise instructions for:
- when a magnitude of the target soft metric is inversely proportional to a status of target quality:
- determining, by a comparison, whether the actual hard metric is greater than the preset target hard metric;
- and
- when the actual hard metric is greater than the preset target hard metric, decreasing the target soft metric, or when the actual hard metric is not greater than the preset target hard metric, increase the target soft metric;
- or
- when a magnitude of the target soft metric is directly proportional to a status of target quality:
- determining, by a comparison, whether the actual hard metric is greater than the preset target hard metric;
- and
- when the actual hard metric is greater than the preset target hard metric, increasing the target soft metric, or when the actual hard metric is not greater than the preset target hard metric, decreasing the target soft metric.
11 more elements
A power control apparatus comprising:
- a receiver, configured to acquire a target signal-to-interference ratio (SIR), wherein the target SIR is an adjusted target SIR obtained by performing a second outer loop power control according to an actual soft metric and an adjusted target soft metric that is obtained using a first outer loop power control, and the first outer loop power control adjusts a target soft metric according to an actual hard metric and a preset target hard metric;
- a processor;
- and
- a memory storing a program to be executed by the processor, the program comprising instructions for:
- performing an inner loop power control according to an actual SIR and the adjusted target SIR;
- wherein the receiver is configured to:
- receive the target soft metric sent by a radio network controller (RNC), wherein the target soft metric is the adjusted target soft metric obtained by performing the first outer loop power control by the RNC according to the actual hard metric and the preset target hard metric;
- and wherein the program comprises instructions for performing the second outer loop power control according to the actual soft metric and the adjusted target soft metric to obtain the adjusted target SIR.
5 more elements
Dependencies are inferred from the claim text.