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Downlink power control method and device for eMTC (Enhanced Machine Type Communication), and base station

A technology of power control and power, applied in the field of communication, can solve problems such as complex downlink scheduling, many PDSCH repetitions, and easy congestion, and achieve the effects of reducing downlink HARQRTT, increasing flexibility, and reducing repetitions

Inactive Publication Date: 2018-05-04
SHANGHAI ZTE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an eMTC downlink power control method, device, and base station to solve the problems in the prior art that the eMTC Mode B has a large number of PDSCH repetitions, complex downlink scheduling, and easy congestion

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  • Downlink power control method and device for eMTC (Enhanced Machine Type Communication), and base station
  • Downlink power control method and device for eMTC (Enhanced Machine Type Communication), and base station
  • Downlink power control method and device for eMTC (Enhanced Machine Type Communication), and base station

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as figure 1 As shown, the embodiment of the present invention provides an eMTC downlink power control method, including:

[0033] S11. Determine the transmission power to be increased of the eMTC downlink task according to the downlink resources pre-allocated for the current eMTC downlink task in the eMTC downlink power waiting queue;

[0034] S12. When the downlink power headroom corresponding to the LTE downlink scheduling subframe is greater than or equal to the transmit power to be increased, share the downlink power headroom with the eMTC downlink task, so that the eMTC downlink task The transmit power is increased, and the corresponding increase value is equal to the transmit power to be increased...

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Abstract

The invention discloses a downlink power control method and device for eMTC (Enhanced Machine Type Communication), and a base station, relates to the technical field of communications, and is used forsolving the problems in the prior art that the repeated times of a PDSCH (Physical Downlink Shared Channel) under a Mode B of the eMTC is large, the downlink scheduling is complex, and congestion iseasy. The method comprises the following steps: determining the to-be-improved transmitting power of an eMTC downlink task according to a downlink resource pre-allocated to the current eMTC downlink task in an eMTC downlink power to-be-improved queue; and under the condition that the downlink power headroom corresponding to an LTE downlink scheduling sub-frame is larger than or equal to the to-be-improved transmitting power, sharing the downlink power headroom to the eMTC downlink task, so that the transmitting power of the eMTC downlink task is increased, and the corresponding added value isequal to the to-be-promoted transmitting power.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to an eMTC downlink power control method and device, and a base station. Background technique [0002] With the development of communication technology and mass information and signal processing technology, the future development goal of wireless communication network is not only to support the voice and data communication needs of anyone at any time and any place, but to integrate more machines Device) into the coverage of the wireless communication network. In the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) standard, it is called MTC (Machine Type Communication, Machine Type Communication). [0003] 3GPP Rel-13 introduces Further LTE Physical Layer Enhancements for MTC (eMTC, enhanced MTC). According to the technical characteristics of eMTC, eMTC is deployed in the LTE system on the base station side, occupying 6 PRBs (physical ...

Claims

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Application Information

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IPC IPC(8): H04W4/70H04W28/02H04W72/04H04W72/12
CPCH04W4/00H04W4/70H04W28/02H04W72/04H04W72/12H04W28/0289H04W72/0473H04W72/1273
Inventor 周建
Owner SHANGHAI ZTE SOFTWARE CO LTD