Method for improving transmission energy consumption efficiency of mobile broadcast communication system

A technology of communication system and energy efficiency, applied in the field of communication, can solve problems such as the failure of users to receive data packets and the instability of wireless communication channels, and achieve a wide range of application scenarios and potentials, reduce transmission energy consumption, and increase network capacity Effect

Active Publication Date: 2020-07-24
SICHUAN UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the instability and attenuation of the wireless communication channel itself, it is determined that: (1) some data packets transmitted by the base station cannot be successfully received by the user and need to be retransmitted; (2) although the wireless channel continues to change dynamically, the user received The signal strength of usually has a certain correlation with the user's location

Method used

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  • Method for improving transmission energy consumption efficiency of mobile broadcast communication system
  • Method for improving transmission energy consumption efficiency of mobile broadcast communication system
  • Method for improving transmission energy consumption efficiency of mobile broadcast communication system

Examples

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Embodiment 1

[0039] A method for improving the transmission energy consumption efficiency of a mobile broadcast communication system, including the following content, there are M base stations under a multi-base station cellular network system broadcast in a time slot, and any base station is marked as a BS j , j=1,2,...,M; the base station is connected to the base station control center (BSC) through the core network; during data transmission, the data is first transmitted from the server to the base station control center, and then from the base station control center to the Each base station is finally wirelessly transmitted to each user by the base station. When the base station transmits the file, it first divides the file into N equal-length data packets and then sends them in time slots. The BSC plays the role of routing and resource allocation of the base station. There are K mobile user terminals in the multi-base station cellular network system, users move freely between base stat...

Embodiment 2

[0067] On the basis of Embodiment 1, there are 2 base stations under the multi-base station cellular network system broadcast in one time slot, BS 1 and BS 2 , and the base station is connected to the base station control center (BSC) through the core network (wired backbone network). The radius of each base station is 0.5Km, BS 1 and BS 2 The base station center distance is 0.866Km. The base station is installed by the communication operator, so the longitude, latitude and geographic location of the base station are known parameters. The interval of each time slot is set to 0.167 seconds, the broadcast channel rate value of the base station is set to 250Kb / slot, and the broadcast channel bandwidth is 2MHz. There are 10 users in the base station randomly distributed in the coverage areas of the two base stations, and keep moving at a certain speed. Each user uploads their current GPS latitude and longitude and moving speed to the base station at a frequency of 1 second / ti...

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Abstract

The invention belongs to the field of communication, and particularly relates to a method for improving the transmission energy consumption efficiency of a mobile broadcast communication system. The comprises the following steps that: a mobile user terminal acquires current longitude, latitude, moving speed and moving direction data of a user through a positioning system, and uploads the data to an associated base station through an uplink data channel; based on the historical longitude, latitude, moving speed and moving direction data uploaded by the moving user, each base station predicts the geographic position of each moving user Ui associated with the base station in the next T time slots; the minimum transmission power required by each base station to transmit data to each user in the future T time slot is estimated; furthermore, the target users needing to send data of each base station in each time slot are determined, and the transmitting power of the base station only needs to enable the signals to cover the target users, so that the total transmission energy consumption is reduced when the same file is transmitted to K users in specified T time slots.

Description

technical field [0001] The application belongs to the field of communication, and in particular relates to a method for improving transmission energy consumption efficiency of a mobile broadcast communication system. Background technique [0002] With the rapid development of mobile communication technology, the number of mobile users and the amount of data transmitted by mobile networks have been growing rapidly. Under the premise of limited spectrum resources, in order to meet the rapidly increasing mobile traffic and service quality requirements, efficient resource allocation, that is, how to allocate and schedule communication system resources reasonably and efficiently, is an important issue in mobile communication systems. Resource allocation mainly refers to a series of decision-making mechanisms such as channel allocation, transmission power control, transmission time slot scheduling, relay selection, modulation and coding scheme selection, etc., and its goal is usua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/32H04W52/14H04W52/02H04W72/00H04W72/04
CPCH04W52/322H04W52/14H04W52/0206H04W72/0453H04W72/30Y02D30/70
Inventor 黄霖宇卢亮
Owner SICHUAN UNIV
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