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Configuration method, device and system for random access channel

A random access channel and random access signal technology, applied in the field of communication, can solve problems such as poor user access quality

Inactive Publication Date: 2017-08-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a random access channel configuration method, device and system to at least solve the problem of poor user access quality caused by MTCUE in the related art in order to reduce costs

Method used

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  • Configuration method, device and system for random access channel
  • Configuration method, device and system for random access channel
  • Configuration method, device and system for random access channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Terminal 1 sends a random access signal through a random access channel. Wherein, the random access channel resource selected by terminal 1 includes multiple time-frequency resource sets Set m,k , m is Set m,k Index in time domain, k is Set m,k index in the frequency domain. In this embodiment, K=1, that is, only one Set is configured in the frequency domain m,k , then the Set m,k denoted as Set m . In this example, Set m Including 2 subcarriers in the frequency domain, the length of the time domain is T m = 8ms.

[0103] In this embodiment, the time-frequency resource set Set can be determined according to the following formula m The time domain starting position of StartingSet m :

[0104] Starting Set m =StartingSet 1 +(T m +T Interval )×(m-1)+Offset m

[0105] Among them, StartingSet 1 for Set m (m=1) time domain starting position, Set m The length of the time-domain resource is T m ,T Interval For two adjacent Set m The time domain interval, ...

Embodiment 2

[0109] Terminal 1 sends a random access signal through a random access channel. Wherein, the random access channel resource selected by terminal 1 includes multiple time-frequency resource sets Set m,k , where m is Set m,k Index in time domain, k is Set m,k index in the frequency domain. In this embodiment, K=1, that is, only one Set is configured in the frequency domain m,k , that is, you can set the Set m,k denoted as Set m . In this example, Set m It includes 2 subcarriers in the frequency domain and has a length of T in the time domain m = 8ms.

[0110] In this embodiment, the time-frequency resource set Set can be determined according to the following method m The time domain starting position of StartingSet m :

[0111] Step 1. Determine Set according to the following formula m The starting position of the corresponding configuration cycle StartingPeriod m :

[0112] StartingPeriod m =StartingPeriod 1 +(T Period )×(m-1)

[0113] Among them, StartingPeri...

Embodiment 3

[0119] The terminal sends a random access signal through a random access channel. Wherein, the random access channel resources selected by the terminal include multiple time-frequency resource sets Set m,k , where m is Set m,k Index in time domain, k is Set m,k index in the frequency domain. In this embodiment, K=2, that is, only 2 Sets are configured in the frequency domain m,k , optionally, the two Set m,k are respectively located on both sides of the frequency domain resource, specifically as image 3 shown.

[0120] In this example, Set m,k The length of the time domain is T m =4ms, and Set m,1 and Set m,2 Have the same time domain starting position StartingSet in the time domain m , then the terminal can determine the time domain starting position StartingSet according to the following steps m :

[0121] Step 1. Determine Set according to the following formula m,1 and Set m,2 The starting position of the corresponding configuration cycle StartingPeriod m : ...

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Abstract

The invention provides a configuration method, device and system for a random access channel. The method comprises a step that a terminal sends a random access signal to a base station through the random access channel, wherein resources of the random access channel include at least one time frequency resource set Setm,k, the Setm,k includes at least one subcarrier or sub-channel in a frequency domain, the Setm,k includes at least one time quantum in a time domain, wherein m is an index of the Setm,k in the time domain and k is an index of the Setm,k in the frequency domain. Through the method, the device and the system, a problem of poor user access quality caused by reduction of the cost of MTC UE is solved, so that the user access quality is effectively improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a random access channel configuration method, device and system. Background technique [0002] Machine Type Communication (MTC for short) User Equipment (UE for short) (hereinafter referred to as MTC UE), also known as Machine to Machine (M2M for short) user terminal, is the current stage of the Internet of Things. The main form of application. Low power consumption and low cost are important guarantees for its large-scale application. [0003] At present, the main alternative methods for reducing the cost of MTC UEs include reducing the terminal receiving antenna, reducing the terminal baseband processing bandwidth, reducing the peak rate supported by the terminal, adopting a half-duplex mode, and so on. However, the reduction of cost means the decline of performance, and it is difficult to guarantee the performance requirements of ordinary terminals, which leads to the redu...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/08H04W74/0833
Inventor 刘锟戴博鲁照华夏树强陈宪明石靖张雯方惠英
Owner ZTE CORP
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