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Power control method, system and terminal

A power control and power control bit technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of limited DCI information length, occupation, and inability of uplink power control to function, and increase power control information. The effect of length, increasing transmit power and saving resources

Active Publication Date: 2022-01-18
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limited length of DCI information of PDCCH, PCB (Power Control Bit, power control bit) has only 2 bits, and the maximum power adjustment range is only 3dB. When the wireless signal has a large fading range, the uplink power control cannot play a role; SPS function It is used to save PDCCH resources, but in order to realize power control after the SPS function is enabled, the network still needs to occupy PDCCH resources if it wants to send PDCCH scrambled with TPC RNTI

Method used

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  • Power control method, system and terminal
  • Power control method, system and terminal
  • Power control method, system and terminal

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Embodiment Construction

[0033] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0034] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0036] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...

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Abstract

The disclosure discloses a power control method, system and terminal, and relates to the field of wireless communication. The method includes: the terminal receives the RRC reconfiguration signaling sent by the base station, wherein the RRC reconfiguration signaling includes a power control mode; determines whether the base station sends power control bits through MAC layer control information according to the power control mode; The information sends power control bits, and the terminal obtains the power control bits through the downlink MAC layer control information, and adjusts the terminal transmission power according to the power control bits. The present disclosure increases the length of the power control information, so that when the wireless signal fades rapidly, the transmission power of the terminal can be quickly increased, and the occupation of PDCCH resources can be saved.

Description

technical field [0001] The present disclosure relates to the field of wireless communication, and in particular, to a power control method, system and terminal. Background technique [0002] For the transmission of power control information, in the prior art, except for MSG3, the power control information of other scenarios is sent in DCI (Downlink Control Information, downlink control information) of PDCCH (Physical Downlink Control Channel, physical downlink control channel). For non-enabled SPS (Semi-Persistent Scheduling, semi-persistent scheduling), power control information of PUCCH (Physical Uplink Control Channel, physical uplink control channel) is sent in DCI0 / 4. For enabling SPS, power control information of PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) is sent in DCI1 / 1A / 1B / 1D / 2 / 2A / 2B / 2C / 2D. For enabling SPS, the power control information of PUCCH and PUSCH is sent in DCI3. [0003] Due to the limited length of DCI information of PDCCH,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04H04W52/14
Inventor 胡春雷李建光朱雪田张光辉
Owner CHINA TELECOM CORP LTD