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Control channel transmission method, transmission processing method, communication node and terminal

A technology for control channels and communication nodes, which is applied in machine-to-machine/machine-type communication services, transmission systems, wireless communication, etc., and can solve the problem of not supporting repeated transmission of multiple subframes.

Active Publication Date: 2015-02-11
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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  • Control channel transmission method, transmission processing method, communication node and terminal
  • Control channel transmission method, transmission processing method, communication node and terminal
  • Control channel transmission method, transmission processing method, communication node and terminal

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

A control channel transmission method, transmission processing method, communication node and terminal communication node, said control channel transmission method comprising: determining, in accordance with predefined information, control channel transmission resources; repeatedly transmitting, multiple times, the control channel on the determined control channel transmission resources; said predefined information includes at least one of the following types of information: control channel repetition number, control channel type, service channel type and service channel start position. The present invention solves a technical problem existing in LTE systems, whereby a down-link control channel is not able to engage in repeated sending, and thus allows a network side, when coverage enhancement is needed, to engage in control channel repeated sending, in order to ensure that a terminal requiring enhanced coverage can correctly receive control information issued by a base station, thus ensuring 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 Equipment (User Equipment, User Equipment or Terminal), also known as Machine to Machine (M2M) User Communication Equipment, is currently the main application of the Internet of Things form. 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 subframe for transmi...

Claims

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Application Information

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IPC IPC(8): H04W72/00H04W4/70
CPCH04L5/0007H04L5/00H04W72/0446H04L5/0053H04L1/02H04L1/08H04W4/70H04W72/20
Inventor 石靖戴博夏树强鲁照华李新彩
Owner ZTE CORP
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