A method and device for improving the measurement accuracy of signal-to-noise ratio

A technology for measuring accuracy and signal-to-noise ratio, which can be used in transmission monitoring, electrical components, transmission systems, etc., and can solve problems such as low signal-to-noise ratio measurement accuracy

A technology for measuring accuracy and signal-to-noise ratio, which can be used in transmission monitoring, electrical components, transmission systems, etc., and can solve problems such as low signal-to-noise ratio measurement accuracy

CN103326792BActive Publication Date: 2016-11-30ZTE CORP
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  • A method and device for improving the measurement accuracy of signal-to-noise ratio
  • A method and device for improving the measurement accuracy of signal-to-noise ratio
  • A method and device for improving the measurement accuracy of signal-to-noise ratio

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Embodiment Construction

[0045] like figure 1 As shown, the methods to improve the measurement accuracy of signal-to-noise ratio include:

[0046] For the M code channels corresponding to a resource block, calculate the signal power of N user code channels, the signal power of N pseudo user code channels corresponding to the user code channels, and remove the N user code channels and the N The idle code channel average power of the M-2N idle code channels of a false user code channel;

[0047] When judging that the signal power of the pseudo-user code channel satisfies the power leakage compensation condition, compensate the signal power of the user code channel corresponding to the pseudo-user code channel with the signal power of the pseudo-user code channel;

[0048]Calculate the non-user code channel average power of M-N code channels other than the N user code channels, and calculate the signal-to-noise ratio of each user channel according to the non-user code channel average power;

[0049] Wh...

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Abstract

This solution provides a method and device for improving the measurement accuracy of signal-to-noise ratio. For the M code channels corresponding to a resource block, the signal power of N user code channels is calculated, and the N pseudo user code channels corresponding to the user code channels signal power, and the average power of the idle code channels of M-2N idle code channels except N user code channels and N pseudo-user code channels; when judging that the signal power of the pseudo-user code channels satisfies the power leakage compensation condition, the The signal power of the pseudo-user code channel compensates the signal power of the user code channel corresponding to this pseudo-user code channel; calculate the non-user code channel average power of M-N code channels except the N user code channels, according to The average power of the non-user code channel is used to calculate the signal-to-noise ratio of each user channel. In the case of inaccurate TA measurement or other unfavorable factors in the actual environment, this solution improves the PUCCH format2 series signal-to-noise ratio measurement accuracy, improves power control performance and control information detection performance.

Description

technical field [0001] The invention relates to the field of wireless communication, a method for improving the measurement accuracy of signal-to-noise ratio in the long-term evolution LTE (Long Term Evolution) physical uplink control channel PUCCH (Physical Uplink Control Channel) format2 series (including format2 / 2a / 2b) and devices. Background technique [0002] Currently, in the LTE system, the PUCCH is a basic LTE uplink physical control channel. Since the PUCCH format2 series has code division characteristics, therefore: 1. Power control has a very important impact on the PUCCH demodulation performance when multiple user equipment UEs (User Equipment) work together. Second, the PUCCH format2 series bears channel quality indicator / precoding matrix indicator / rank indicator CQI / PMI / RI (Channel Quality Indicator / Precoding Matrix Indicator / Rank Indication), system indication acknowledgment information ACK (Acknowledgment) and non-acknowledgment information NACK (Non- Ackno...

Claims

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Application Information

Patent Timeline
30 Nov 2016
Publication
CN103326792B
IPC
H04B17/336
Inventors
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