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Terminal transmission power control method and device based on NB-IoT system

A technology of transmit power control and transmit power, applied in the field of communication, can solve the problem of high uplink interference in NB-IoT system

Active Publication Date: 2019-01-01
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a terminal transmission power control method and device based on NB-IoT system, which is used to solve the technical problem in the prior art that the uplink interference of the NB-IoT system is too high due to the high rise of the terminal transmission power

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  • Terminal transmission power control method and device based on NB-IoT system
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  • Terminal transmission power control method and device based on NB-IoT system

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Embodiment Construction

[0078] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. The use of the terms "first" and "second" etc. does not denote any order, and the above terms may be interpreted as names of the described objects. In the embodiments of the present invention, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention shall not be construed as being more preferred or more advantageous than ...

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Abstract

The embodiment of the invention discloses a terminal transmission power control method and device based on an NB-IoT system, relates to the technical field of communication, and is used for solving atechnical problem that the uplink interference of the NB-IoT system is excessively high due to the excessive rise of the transmission power of the terminal in the prior art. The method includes the steps: judging whether a first terminal performs the upgrading of a coverage enhancement level or not; acquiring the number of the second terminals that are within a preset distance range from the firstterminal and meet a signal receiving level condition if the determination result is yes; determining a lead code power offset of the first terminal according to the number of terminals; and determining the transmitting power of the first terminal according to the lead code power offset. The method is used for reducing uplink interference of the NB-IoT system and effectively suppresses the rise ofthe ground noise of a base station.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a method and device for controlling terminal transmission power based on an NB-IoT system. Background technique [0002] NB-IoT (Narrow Band Internet of Things, cellular-based narrowband Internet of Things) is an Internet of Things technology based on the evolution of the 3GPP LTE standard protocol. Advantages, mainly for IoT application scenarios with medium and low rates, deep coverage, low power consumption, and large connections. [0003] The network architecture of the NB-IoT system is as follows: Figure 1a As shown, it includes: NB-IoT system terminal (for example, user equipment UE), base station (eNodeB), packet core network (EPC), IoT platform (connection management platform) and application server. Currently, the NB-IoT system supports three types of CEL (Coverage Enhancement Level, coverage enhancement level), see Figure 1b As sho...

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Application Information

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IPC IPC(8): H04W52/14H04W52/24H04W52/28H04W52/32H04W52/36
CPCH04W52/146H04W52/242H04W52/243H04W52/283H04W52/325H04W52/362
Inventor 张力方胡泽妍赵元胡云
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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