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Information transmission method, base station, terminal and computer readable storage medium

A technology for information transmission and terminals, applied in sub-channel allocation of transmission paths, signaling allocation, wireless communication, etc., can solve problems such as waste of resources, deviation in selection of repeated transmission times, occupation, etc., to solve waste of resources and improve success rate effect

Pending Publication Date: 2019-08-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the UE can only measure the quality information of the downlink channel, when the quality of the uplink channel is poorly matched with the quality of the downlink channel, the selection of the number of repeated transmissions of the uplink channel Msg1 and Msg3 will be biased, which will cause Msg1 and Msg3 to fail to transmit successfully or cause The transmission of Msg1 and Msg3 takes up too many resources, resulting in a waste of resources
At the same time, since NB-IoT UE does not feed back downlink channel quality information to the base station, the number of repeated transmissions of the downlink channel (such as Msg2, Msg4 and the scheduling information of the above messages) by the base station cannot be flexibly adjusted. If the downlink channel selected by the base station Too many repeated sending times will also lead to a certain waste of resources

Method used

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  • Information transmission method, base station, terminal and computer readable storage medium
  • Information transmission method, base station, terminal and computer readable storage medium
  • Information transmission method, base station, terminal and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0463] Preferred embodiment 1 (combination 1: 1 set of channel quality thresholds and the deviation value for the channel quality thresholds in the set of channel quality thresholds)

[0464] The wireless communication system supports 3 coverage enhancement levels, each coverage enhancement level corresponds to a channel quality value interval, and the channel corresponding to each coverage enhancement level is configured with a number of repeated transmissions.

[0465] When CQ_Measured satisfies CQ_Measured≥CQ_TH_CE0, the UE's coverage enhancement level is CE level0;

[0466] When CQ_Measured satisfies CQ_TH_CE1≤CQ_Measured

[0467] When CQ_Measured satisfies CQ_Measured

[0468] Wherein, CQ_Measured is the channel quality measurement value of the terminal; CQ_TH_CE0 is the threshold value of channel quality corresponding to coverage enhancement level ...

Embodiment 2

[0492] Preferred embodiment 2 (combination 1: 1 set of channel quality thresholds and the deviation value for the channel quality thresholds in the set of channel quality thresholds)

[0493] In this embodiment, in addition to configuring a set of channel quality thresholds (that is, CQ_TH_CE0 and CQ_TH_CE1), the base station also configures the deviation values ​​Delta0 and Delta1 for CQ_TH_CE0 and CQ_TH_CE1, such as Figure 5 As shown, therefore, the channel quality is divided into five ranges, namely Range1-Range5.

[0494] The base station increases the channel quality threshold corresponding to CE Level 0 and CE Level 1 by configuring Delta0 and Delta1. Therefore, the channel quality threshold of CE level 0 becomes CQ_TH_CE0+Delta0, and the channel quality range corresponding to CE level 0 is Range1; the channel quality threshold of CE level 1 becomes CQ_TH_CE1+Delta1, and the channel quality corresponding to CE level 1 The intervals are Range2 and Range3, and the corres...

Embodiment 3

[0507] Preferred embodiment 3 (combination 2: 2 sets of channel quality threshold values)

[0508] Considering that the CE level reflects the quality information of the downlink channel, when the interference level received by the uplink channel is equal to or close to that received by the downlink channel, the CE level can also reflect the quality information of the uplink channel. In this embodiment, since the interference level of the uplink channel is greater than the interference level of the downlink channel, if the UE sends the uplink channel according to the number of repeated transmissions corresponding to the selected CElevel, the uplink channel cannot be successfully blocked because the uplink interference level is too high. The base station receives. In order to overcome this problem in this embodiment, the base station configures two sets of channel quality threshold values, the first set of threshold values ​​are CQ_TH_CE0 and CQ_TH_CE1, and the second set of thr...

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Abstract

The embodiment of the invention discloses an information transmission method, a base station, a terminal and a computer readable storage medium, and the method comprises: the base station sending a first message, the first message comprising at least one of the following information: at least one set of channel quality threshold value, and each set of channel quality threshold value comprising atleast one channel quality threshold value; wherein the channel quality threshold value is set according to at least one of the following channel quality: reference signal receiving power, reference signal receiving quality, downlink signal-to-interference-noise ratio, downlink signal-to-noise ratio, uplink signal-to-interference-noise ratio, uplink signal-to-noise ratio, downlink path loss and uplink path loss. According to the embodiment of the invention, a first message containing a channel quality threshold value or a deviation value thereof is sent through a base station. Thus, the terminal can adjust the coverage enhancement level according to the channel quality measurement value and feed the coverage enhancement level back to the base station, the uplink channel transmission successrate is improved, and the problem of resource waste caused by the fact that the base station may select too many downlink channel repeated sending times is solved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular to an information transmission method, a base station, a terminal, and a computer-readable storage medium. Background technique [0002] Machine Type Communication (MTC) User Equipment (UE) (hereinafter referred to as MTC UE), also known as Machine to Machine (M2M) User Terminal, is the main application form of the Internet of Things at this stage . The cellular-based Narrow Band Internet of Things (NB-IoT) technology is an important subject of 3GPP Release13, and its corresponding 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) protocol-related content has been approved by the Wireless Access Network (RadioAccess Network, RAN) plenary approval. [0003] After the UE of NB-IoT sends the random access signal (also called Msg1) on the narrowband random access channel (Narrow Band Physical Random Access Channel, NPRACH) of the ...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04W74/08
CPCH04W74/0833H04W48/08H04L5/0053H04W72/0453H04W72/21H04W4/70H04W24/02H04W48/12H04W24/08H04W24/10H04W74/002H04W72/20H04L27/26362H04W72/542
Inventor 刘锟戴博方惠英陈宪明杨维维
Owner ZTE CORP
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