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A kind of information transmission method, intermediate node and terminal

An intermediate node and information transmission technology, applied in the field of wireless communication, can solve the problem of low utilization rate of time-frequency resources, and achieve the effect of efficient time-frequency resources, saving transmission resources, and improving system throughput

Active Publication Date: 2019-03-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the Relay node cannot implement both data sending and data receiving functions on the same frequency resource and the same time resource, the utilization rate of time-frequency resources is low

Method used

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  • A kind of information transmission method, intermediate node and terminal
  • A kind of information transmission method, intermediate node and terminal
  • A kind of information transmission method, intermediate node and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Embodiment 1 of the present invention proposes a method for network coding at the Relay, such as Figure 5 shown, including the following steps:

[0132] Step 101, in the system, eNB and UE exchange data with each other through Relay. The Relay node receives downlink data a from the eNB in ​​the downlink backhaul subframe; the Relay node receives uplink data b from the UE in the uplink non-backhaul subframe. The lengths of data a and b are equal.

[0133] In step 102, the Relay demodulates and decodes the received data, and saves the decoded bit-level data in a cache area of ​​the Relay. Relay performs binary domain XOR network coding processing on data a and b to obtain bit-level data

[0134] Step 103, the eNB determines the uplink transmission mode of the Relay according to the channel condition fed back by the Relay, and sends the DCI information carrying the uplink resource allocation, modulation and coding mode, etc. of the backhaul link from the Relay to the...

Embodiment 2

[0142] Embodiment 2 of the present invention proposes a method for network coding at the Relay, such as Image 6 shown, including the following steps:

[0143] Step 201, in the system, eNB and UE exchange data with each other through Relay. The Relay node receives downlink data a from the eNB in ​​the downlink backhaul subframe; the Relay node receives uplink data b from the UE in the uplink non-backhaul subframe. The lengths of data a and b are equal.

[0144] In step 202, the Relay demodulates and decodes the received data, and saves the decoded bit-level data in a cache area of ​​the Relay. Relay performs binary domain XOR network coding processing on data a and b to obtain bit-level data

[0145] In step 203, the eNB determines the uplink transmission mode of the Relay according to the channel condition fed back by the Relay, and sends the DCI information carrying the uplink resource allocation, modulation and coding mode, etc. of the backhaul link from the Relay to t...

Embodiment 3

[0153] Embodiment 3 of the present invention proposes a method for network coding at the Relay, such as Figure 7 shown, including the following steps:

[0154] Step 301, in the system, the eNB and the UE exchange data with each other through the Relay. The Relay node receives downlink data a from the eNB in ​​the downlink backhaul subframe; the Relay node receives uplink data b from the UE in the uplink non-backhaul subframe. The lengths of data a and b are equal.

[0155] In step 302, the Relay demodulates and decodes the received data, and saves the decoded bit-level data in a cache area of ​​the Relay. Relay performs binary domain XOR network coding processing on data a and b to obtain bit-level data

[0156] In step 303, the eNB determines the uplink transmission mode of the Relay according to the channel condition fed back by the Relay, and sends the DCI information carrying the uplink resource allocation, modulation and coding mode, etc. of the backhaul link from t...

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Abstract

Provided in embodiments of the present invention is a method for information transmission, comprising: an intermediate node receives from a base station uplink transmission scheduling information of an uplink running from the intermediate node to the base station and transmits the uplink transmission scheduling information to either one or multiple terminals. Also provided in embodiments of the present invention is a method for information transmission, whereby a terminal acquires from the intermediate node the uplink transmission scheduling information of the uplink running from the intermediate node to the base station. Also provided in the present invention are the terminal and the intermediate node. The embodiments of the present invention conserve transmission resources, make highly efficient utilization of time-frequency resources, and increase system throughput.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an information transmission method, an intermediate node and a terminal. Background technique [0002] In a wireless communication network, when a user terminal (User Equipment, UE for short) is at the edge of the network, it is not effective for the UE to directly communicate with a base station (evolvedNode B, eNB for short). At this time, a relay (Relay) node can be used to assist communication, that is, the UE and the eNB first send the information to be exchanged to the Relay node, and the Relay node amplifies and forwards or decodes the information and forwards it to the eNB and UE. By adding a Relay node between the eNB and the UE, a link with poor quality between the eNB and the UE is replaced by two links with better quality between the eNB and the Relay node and between the Relay node and the UE, thereby Ensure the quality of service provided by the eNB to UEs wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04L1/00
CPCH04L1/1896H04L1/1812H04L1/1887H04L2001/0097
Inventor 许进张帅徐俊
Owner ZTE CORP