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Method and system for realizing application of LTE (Long Term Evolution) in Internet of things by improving distribution of frequency domain resource

A technology of frequency domain resources and the Internet of Things, which is applied to improve the allocation of frequency domain resources to realize the application and system field of LTE in the Internet of Things. reliability effect

Active Publication Date: 2010-08-18
临沂高新城乡发展有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005]However, in real life, there are various applications that require a lower rate than VoIP services, such as some applications in the Internet of Things, Only one or two or several bits of information need to be transmitted. Since the minimum resource scheduling unit of the LTE system in the frequency domain is 1 RB, that is to say, even if the data rate requirement of the current service is very low, the LTE system needs at least one RB. RBs are allocated to corresponding UEs for their transmission use. Obviously, this existing frequency domain resource allocation mechanism has a serious resource waste problem when dealing with low-rate services.

Method used

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  • Method and system for realizing application of LTE (Long Term Evolution) in Internet of things by improving distribution of frequency domain resource
  • Method and system for realizing application of LTE (Long Term Evolution) in Internet of things by improving distribution of frequency domain resource
  • Method and system for realizing application of LTE (Long Term Evolution) in Internet of things by improving distribution of frequency domain resource

Examples

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example 1

[0076] Assuming that under the 1.4M system bandwidth, a certain uplink service only needs to transmit 1 bit of information, and the network side allocates 1 subcarrier for the service in the control signaling, the subcarrier number is 18, and its modulation mode is BPSK (two phase shift key). Control modulation), and then send the control signaling to the terminal side;

[0077] In this case, the process of sending on the terminal side is: the terminal side modulates the 1-bit information into a BPSK modulation symbol via BPSK, and then places the BPSK modulation symbol on the frequency domain position of subcarrier number 18. At this time, The baseband data preparation is complete; after DAC, up-conversion to 2.35G, and power amplification, the data can be sent out from the antenna port.

[0078] The receiving process on the network side is: the network side first down-converts the acquired data, passes through the ADC to obtain the baseband data, and then analyzes the correspondi...

example 2

[0080] Assuming that under the 1.4 system bandwidth, the VoIP service needs to transmit 24 bits of information. The network side allocates 24 subcarriers for the service in the control signaling. The subcarrier numbers are from 0 to 23, that is, the RBs numbered 0 and 1 are allocated to Use this service and set its modulation mode to BPSK modulation.

[0081] In this case, the process of sending on the terminal side is: the terminal side modulates the 24 bits of information into 24 BPSK modulation symbols via BPSK, and then places the 24 BPSK modulation symbols in sequence on the subcarrier numbers from 0 to 23 At this time, the baseband data preparation is completed; then through the DAC, up-conversion to 2.35G, after power amplification, the data can be sent out from the antenna port.

[0082] The receiving process on the network side is: the network side first down-converts the received data, passes through the ADC to obtain the baseband data, and then analyzes the corresponding...

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Abstract

The invention provides a method for realizing the application of LTE (Long Term Evolution) in the Internet of things by improving the distribution of frequency domain resources, comprising the following steps of: generating a control signaling of data transmission by a network side, wherein the control signaling comprises subcarrier information occupied by current data transmission and the format information of current data; transmitting the data in a corresponding format on a corresponding subcarrier frequency domain position according to the subcarrier information; and receiving the data from the subcarrier frequency domain position and analyzing the data according to the data format information by a receiving end. The invention can effectively enhance the utility ratio of the frequency domain resources on the basis of ensuring the reliability of low-speed service processing.

Description

Technical field [0001] The present invention relates to the field of mobile communication technology, in particular to a method for improving frequency domain resource allocation to realize the application of LTE in the Internet of Things, a system for improving frequency domain resource allocation to realize the application of LTE in the Internet of Things, and improving frequency domain resource allocation Base stations that implement LTE applications in the Internet of Things and user terminals that improve frequency domain resource allocation to implement LTE applications in the Internet of Things. Background technique [0002] In order to be in a favorable position in the fiercely competitive environment of mobile communication technologies in the future, and to meet the ever-increasing diversified needs of users, the 3GPP organization passed the project on 3GPP Long Term Evolution (LTE) at the end of 2004 to accelerate the development of new Air interface and wireless acces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W88/02H04W88/08
Inventor 张辉刘广宋磊
Owner 临沂高新城乡发展有限公司
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