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Power Efficient Data Transmission

A data transmission, power efficiency technology, applied in power management, transmission system, advanced technology, etc.

Active Publication Date: 2016-01-20
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the current scheduling strategy maximizes system throughput, but at the cost of increased energy consumption of the mobile node for each received data unit

Method used

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  • Power Efficient Data Transmission
  • Power Efficient Data Transmission
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] figure 1 A variable bandwidth wireless communication system 10 for data transmission between a mobile node 20 and a network node 40 is shown. Depending on whether the data transmission occurs in the downlink direction (i.e., from the network node 40 to the mobile node 20) or in the uplink direction (i.e., from the mobile node 20 to the network node 40), the data transmission takes place in one or more downlink carriers 12 or on one or more uplink carriers 14. In either case, the total bandwidth occupied by one or more carriers 12 , 14 and thus the bandwidth of data transmissions may vary as scheduled by the network node 40 .

[0017] In one embodiment, for example, the variable bandwidth wireless communication system 10 includes an LTE system. A network node 40 that is part of an LTE system may schedule data transmissions onto a single LTE carrier occupying a channel bandwidth somewhere between 1.4 MHz and 20 MHz (the current LTE standard permits 1.4 MHz carriers, 3 M...

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Abstract

The theory in this paper is based on the power efficiency of mobile nodes to schedule data transmission in variable bandwidth wireless communication systems. One or more processing circuits of the mobile node or the network node determine values ​​of control settings defining a power efficiency configuration of the mobile node. In one embodiment, for example, the power efficiency configuration indicates that the mobile node is configured to operate at the maximum power efficiency achievable without the data rate of the data transmission falling below the minimum data rate required by the quality of service. In any event, one or more processing circuits select from among different possible bandwidths for data transmission to support a given data rate and generate a power efficiency profile conforming to a power efficiency profile according to a power efficiency model that models the mobile node's power efficiency for the different possible bandwidths bandwidth.

Description

technical field [0001] The present invention relates generally to bandwidth selection for data transmission between a mobile node and a network node in a wireless communication system, and in particular to bandwidth selection for efficiently transmitting data according to the power consumed by the mobile node . Background technique [0002] The 3rd Generation Partnership Project (3GPP) is currently developing specifications for upcoming wireless communication systems including the Long Term Evolution (LTE) system and the LTE-Advanced system. These systems will support a wide range of transmission bandwidths. For example, 3GPP specifications for LTE systems define transmission bandwidths ranging from about 1 MHz to 20 MHz on a single LTE carrier. Likewise, the 3GPP specification for LTE-Advanced systems defines a transmission bandwidth of up to 100MHz over the aggregation of up to five 20MHz LTE component carriers. [0003] The support of such large transmission bandwidths...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/16H04W52/02H04W72/08H04W28/18H04W72/54
CPCH04W52/0206Y02D30/70
Inventor L·孙德斯特伦S·安德森S·帕克瓦尔B·林多夫
Owner TELEFON AB LM ERICSSON (PUBL)