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Power control method and device

A power control and power technology, applied in the field of communication, can solve the problem of error affecting power control accuracy, etc., and achieve the effect of avoiding accumulated error, strengthening self-recovery ability, and reducing power control error

Active Publication Date: 2017-12-22
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a dual-carrier uplink packet access power control method to solve the problem that the accumulated errors affect the accuracy of power control when the total transmission power is controlled in the prior art

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  • Power control method and device

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Embodiment Construction

[0048] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0049] In the linear domain, the total power of the dual carrier is equal to the sum of the total power of the two carriers, and the power of each carrier includes the sum of the respective dedicated physical control channel (Dedicated Physical Control Channel, DPCCH) and the gain of each channel, Therefore, it is possible to fix the power of one carrier and change the power value of the other carrier, thereby continuously changing the power difference between the two carriers, and every time the power difference between the two carriers is changed, the dual carrier is calculated The difference between the total power of the two carriers and the carrier with the higher power in the two carriers can be used as the quantized value of the two carriers with the same power difference when calculating the total power. After c...

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Abstract

The present invention relates to a power control method, which includes: obtaining the current main carrier power of the main carrier and the current auxiliary carrier power of the auxiliary carrier; selecting a reference carrier from the main carrier and the auxiliary carrier; Calculate the difference with the secondary carrier power to obtain a first difference; according to the first difference, by querying a preset configuration parameter table, determine a quantization value corresponding to the first difference; according to the reference The power of the carrier and the quantization value determine the total transmission power for transmitting the primary carrier and the secondary carrier. In the whole process, the power of the previous time slot does not need to be introduced, so the accumulated error can be avoided, thereby reducing the power control error and improving the control accuracy. And when the carrier receives external interference, it only needs to adjust the DPCCH power of the two carriers through the network side to ensure that the power difference between the two carriers is constrained within the set threshold range, which has a strong self-recovery capability.

Description

technical field [0001] The present invention relates to the communication field, in particular to a power control method and device. Background technique [0002] Dual Cell High Speed ​​Uplink Packet Access (DC-HSUPA) technology is a new technology that combines dual carrier (DC) technology with High Speed ​​Uplink Packet Access (HSUPA) technology, allowing user equipment (User Equipment, UE) sends HSUPA data in two cells with different frequency and same coverage, using binary phase shift keying (Binary Phase Shift Keying, BPSK) or 16-bit quadrature amplitude modulation (16QuadratureAmplitude Modulation, 16QAM), so that the user uplink The peak rate is greatly improved to ensure that users can upload data at high speed. [0003] In order to ensure the performance of the uplink, it is necessary to control the uplink power. In the prior art, when controlling the uplink power, all channels of the two channels are combined to calculate the total transmit power. [0004] figu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04H04W52/32
CPCH04W52/16H04W52/146H04W52/42
Inventor 印建宏梅安华张家佶
Owner HONOR DEVICE CO LTD