Method, device and system of machine terminal communication

A machine-type communication and terminal technology, applied in the wireless field, can solve problems such as waste, increased cost of MTC terminals, and small amount of downlink data, and achieve the effects of improving utilization, improving radio frequency transceiver capabilities, and avoiding mixed use

Inactive Publication Date: 2013-07-10
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

For MTC terminals, on the one hand, the amount of downlink data is very small. If it works on a 20M carrier, it does not need a transmission rate of 20M bandwidth.
On the other hand, the RF transceiver capability is one of the factors that affect the cost of the terminal. If the MTC terminal and the common commercial ter

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  • Method, device and system of machine terminal communication
  • Method, device and system of machine terminal communication
  • Method, device and system of machine terminal communication

Examples

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[0049] The invention designs a physical downlink control channel specially used for MTC terminals, and allocates a dedicated physical downlink control channel for MTC on the original LTE carrier. The present invention will be described in detail below with reference to the drawings.

[0050] Such as figure 2 As shown, the embodiment of the machine terminal communication method of the present invention includes the following steps:

[0051] Step 102: The base station (eNB) generates an MIB containing physical downlink control channel configuration information;

[0052] The physical downlink control channel is a physical downlink control channel dedicated to machine type communication. For example, the physical downlink control channel occupies the kth to k+y symbols of the xth subframe in the time domain, and occupies z subcarriers in the frequency domain. , X, k, y, z and other information need to be transmitted through the MIB of the carrier. Add x, k, y, z and other information t...

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Abstract

The invention discloses a method, a device and a system of machine terminal communication. The method includes: analyzing configuration information of physical downlink control channels from received main system information (MIB); and according to the configuration information, receiving downlink control information carried by a physical downlink control channel from the corresponding physical downlink control channel. According to the method, the device and the system of the machine terminal communication, a base station sends the MIB containing the configuration information of the physical downlink control channel to a terminal, and the terminal can receive the downlink control information on the corresponding physical downlink control channel according to the configuration information. Thus, the method, the device and the system of the machine terminal communication achieve that a machine-type communication (MTC) terminal only receives the downlink control information on the bandwidth of a working carrier wave, thus achieve that when the MTC terminal and an ordinary commercial terminal shares the same carrier wave, radio frequency receiving and transmitting capacity of the MTC terminal does not need to be promoted, and reduce cost of the MTC terminal.

Description

technical field [0001] The present invention relates to a wireless technology, in particular to a machine terminal communication method, device and system. Background technique [0002] Such as figure 1 As shown, machine-type communication (machine-type communication, MTC for short) refers to a communication mode between machines (devices and devices) that does not require human participation. The current core network specification 3GPP 22.368 defines 16 important features in MTC communications, including low mobility, time control, delay tolerance, and online small data transmission. For different applications, including meter reading applications, remote control, etc., it may have one feature or a combination of several features. [0003] Since spectrum resources are very precious, at the beginning of MTC business development, it is an effective solution to improve the utilization of spectrum resources to consider sharing the carrier with everyone for communication. [...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W88/02H04W88/08
CPCH04W4/70H04W48/12
Inventor 胡南江小威崔春风胡臻平
Owner CHINA MOBILE COMM GRP CO LTD
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