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Transmission method of broadcast information in a wireless communication system

A technology of broadcast information and transmission method, applied in the field of broadcast information transmission, can solve problems affecting network efficiency and heavy network burden

Active Publication Date: 2020-10-30
BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Secondly, if the network relay level of the power consumption information collection system is very high, the broadcast channels of the hub and all relay nodes in the network must arrange independent time slots to send broadcast information, which will overburden the network and seriously affect the quality of the network. efficiency

Method used

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  • Transmission method of broadcast information in a wireless communication system
  • Transmission method of broadcast information in a wireless communication system
  • Transmission method of broadcast information in a wireless communication system

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Embodiment Construction

[0022] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0023] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0024] The station area in this embodiment is the name in the power grid, and all the electric meters carried by a transformer constitute a station area, which has the same meaning as the cell of the communication system. The wireless zone in this embodiment is actually centered on the concentrator.

[0025] In this embodiment, a linear frequency modulation Chirp signal, also called a frequency sweep signal, is used as a b...

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Abstract

The invention discloses a method for transmitting broadcast information in a wireless communication system, which includes: a superior node sends broadcast information at an idle frequency point, and the broadcast information includes: a preamble symbol sequence, a frequency offset field, and broadcast data, and the frequency offset field stores idle The frequency offset between the frequency point and the carrier frequency point; the current node analyzes the broadcast information, and when the broadcast information is the information sent by the upper node, the measurement frequency is obtained according to the locally stored preamble symbol sequence and the preamble symbol sequence in the broadcast information. Calculate the local frequency offset of the superior node according to the frequency offset stored in the frequency offset field and the measured frequency offset, and correct the performance parameters of the receiver of the current node according to the local frequency offset. The broadcast information transmission method in the wireless communication system provided by the invention can improve the data transmission efficiency of the network.

Description

technical field [0001] The invention relates to a wireless communication system, in particular to a method for transmitting broadcast information in the wireless communication system. Background technique [0002] The user information collection system of the power system is a system that collects, processes and monitors the electricity consumption information of power users in real time. [0003] At present, in the power system, a large number of centralized meter reading terminals adopt the remote meter reading communication mode of micro-power wireless communication networking. Since the transmission power of each node of the micropower wireless communication network applied in the power grid is limited, in order to meet the coverage requirements of user information collection, usually such as figure 1 The tree-shaped network topology diagram of the multi-level relay shown. Among them, T1 is the concentrator, G1 is the first-level terminal node, G2 is the second-level t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W56/00H04L5/00H04L27/00
CPCH04L5/0048H04L27/0014H04L2027/0026H04W4/06H04W56/0035
Inventor 赵旭张玉冰李洪强李思超刘佳迪赵亚红李铮
Owner BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY