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Transmission method, transmission processing method, communication node and terminal of control channel

A technology for controlling channels and communication nodes, applied in machine-to-machine/machine-type communication services, wireless communication, sub-channel allocation of transmission paths, etc., and can solve the problem of not supporting repeated transmission of multiple subframes.

Active Publication Date: 2019-05-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the control channel, it is currently not supported to repeatedly send the same DCI in multiple subframes

Method used

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  • Transmission method, transmission processing method, communication node and terminal of control channel
  • Transmission method, transmission processing method, communication node and terminal of control channel
  • Transmission method, transmission processing method, communication node and terminal of control channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0296] This embodiment will describe in detail the control channel transmission method provided by the present invention in an FDD (Frequency Division Duplexing, Frequency Division Duplexing) system.

[0297] The specific processing steps on the base station side are as follows Figure 8 Shown, including:

[0298] In step 801, the base station sends a system message, and at the same time uses the control channel to schedule and instruct the traffic channel carrying the system message for transmission. The fixed starting subframe position satisfies the relational expression (k+h*n) mod N=0, where k represents the number of the starting subframe available downlink subframe in the radio frame, 0≤k≤h-1, n means starting The radio frame where the initial subframe k is located, h is the number of available downlink subframes included in a radio frame, and N represents the number of repeated transmissions of the control channel. At this time, h=10 and k=0. At this time, all subframes ca...

Embodiment 2

[0305] This embodiment will describe in detail the control channel transmission method provided by the present invention in an FDD (Frequency Division Duplexing, Frequency Division Duplexing) system.

[0306] The specific processing steps on the base station side are as follows Figure 8 Shown, including:

[0307] In step 801, the base station sends a system message, and at the same time uses the control channel to schedule and instruct the traffic channel carrying the system message for transmission. The fixed starting subframe position satisfies the relationship: Y=(k+h*n1-N+1), and n mod M=m. h is the number of available downlink subframes contained in a radio frame, n1 represents the radio frame number where the starting subframe k of the service channel carrying system message SIB1 is located, n represents the wireless frame number where the control channel starting subframe Y is located, and N represents The control channel repeats the number of subframes and N≤M*h, preferab...

Embodiment 3

[0314] This embodiment will describe in detail the control channel transmission method provided by the present invention in an FDD (Frequency Division Duplexing, Frequency Division Duplexing) system.

[0315] The specific processing steps on the base station side are as follows Figure 8 Shown, including:

[0316] Step 801: The base station sends a UE-specific message, and at the same time uses the control channel to schedule and instruct the service channel carrying the specific message for transmission. The fixed starting subframe position satisfies the relationship (k+h*n) mod N=m, where k represents the starting subframe, 0≤k≤h-1, n represents the radio frame where the starting subframe k is located, and N Indicates the number of repeated transmissions of the control channel. m is a subset of the set {0, 1,..., N-1}, at this time m takes the value of the set {0, N / 2}. At this time, all subframes can be used for repeated control channels, and they can be occupied according to ...

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Abstract

The invention discloses a control channel transmission method, a transmission processing method, a communication node, and a terminal communication node. The control channel transmission method includes: determining the resources for transmitting the control channel according to predefined information; The control channel is repeatedly transmitted multiple times, and the predefined information includes at least one of the following information: the number of repetitions of the control channel, the type of the control channel, the type of the traffic channel, and the starting position of the traffic channel. The invention solves the technical problem that the downlink control channel cannot be repeatedly sent in the LTE system, thereby realizing that the network side can perform repeated transmission of the control channel under the requirement of coverage enhancement, so as to ensure that the terminal with the requirement of coverage enhancement can correctly receive the base station The issued control information ensures the corresponding data transmission.

Description

Technical field [0001] The present invention relates to a Long-Term Evolution (LTE) system / Long-Term Evolution Advance (LTE-Advance or LTE-A) system, and in particular to a control channel transmission method, transmission processing method, and communication Nodes and terminals. Background technique [0002] Machine Type Communication (MTC) user terminal (UserEquipment, referred to as user equipment or terminal), also known as Machine to Machine (M2M) user communication equipment, is currently the main application form of the Internet of Things . In recent years, due to the high spectrum efficiency of Long-Term Evolution (LTE) / Long-Term Evolution Advance (LTE-Advance or LTE-A), more and more mobile operations Businesses choose LTE / LTE-A as the evolution direction of broadband wireless communication systems. Various types of MTC data services based on LTE / LTE-A will also be more attractive. [0003] The existing LTE / LTE-A system is based on the dynamic scheduling of each subfra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/00H04W4/70
CPCH04W72/0446H04L5/0007H04L5/0053H04L1/08H04W4/70H04W72/20
Inventor 石靖戴博夏树强鲁照华李新彩
Owner ZTE CORP
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