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Method and device for suppressing false detection of random access channel

A technology of random access channel and physical random access, applied in the field of communication, can solve the problem of high probability of false detection of PRACH channel, and achieve the effect of reducing the probability of false detection of PRACH

Active Publication Date: 2017-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for suppressing false detection of a random access channel, which solves the problem that the false detection probability of the PRACH channel is too high in the existing MassiveMIMO system

Method used

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  • Method and device for suppressing false detection of random access channel
  • Method and device for suppressing false detection of random access channel
  • Method and device for suppressing false detection of random access channel

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] like figure 1 As shown, the embodiment of the present invention provides a random access channel suppression false detection method, the method includes:

[0051] Step 101, based on the physical random access channel PRACH configuration information, obtain the first position of the first frequency domain resource allocated by the PRACH;

[0052] Step 102, determine the physical uplink shared channel PUSCH service scheduling information that needs to be scheduled in the uplink UL subframe at the next moment, and judge the historical information of scheduling the PUSCH service for each terminal UE within the set time period before the current time according to the service scheduling information noise ratio SINR information, determining the average SINR of each UE according to the SINR information;

[0053] Step 103, allocate a second frequency domain resource for each UE according to the average SINR corresponding to each UE and the first position; wherein, when the aver...

Embodiment 2

[0067] like figure 2 As shown, a method for suppressing false detection of a random access channel according to an embodiment of the present invention will be further described below in conjunction with specific examples. In this embodiment, multiple UEs are scheduled, and UEs are evenly distributed at far and near midpoints. The specific implementation may be:

[0068] Step 201, obtaining the configuration information of PRACH and the scheduling information of the PUSCH service that needs to be scheduled in the uplink UL subframe at the next moment;

[0069] Step 202, obtaining the historical SINR record of the UE corresponding to the PUSCH service;

[0070] Step 203, according to the history SINR record that obtains, judge one by one whether the RB level average SINR of the UE that dispatches PUSCH service is greater than false detection SINR minimum threshold, if yes then transfer to step 204; otherwise transfer to step 205;

[0071] Step 204, scheduling the UE whose SINR...

Embodiment 3

[0077] like image 3 As shown, the embodiment of the present invention also provides another random access channel suppression false detection method, the method includes

[0078] Step 301, based on the physical random access channel PRACH configuration information, determine the first frequency domain resources allocated by the PRACH;

[0079] Step 302, determining the second frequency domain resource scheduled by the physical uplink shared channel PUSCH that needs to be scheduled in the uplink UL subframe;

[0080] Step 303, when the separation distance between the first frequency domain resource and the second frequency domain resource is less than a set threshold, calculate the signal-to-noise ratio SINR on the RB corresponding to the second frequency domain resource;

[0081] Step 304: Comparing the SINR with the preset threshold value of the PRACH false detection, and performing a false detection suppression threshold for the false detection of the first frequency domai...

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Abstract

The invention relates to the technical field of communication, and discloses a method and a device for suppressing false detection of a random access channel. The method comprises the steps of acquiring a first position of a first frequency domain resource allocated by a physical random access channel (PRACH) based on configuration information of the PRACH; determining physical uplink shared channel (PUSCH) service scheduling information required to be scheduled by an up link (UL) subframe at the next moment, judging historical signal to noise ratio (SINR) information of each user equipment (UE) of a scheduled PUSCH service within a set period of time before the current moment according to the service scheduling information, and determining an SINR average value of each UE according to the SINR information; and allocating second frequency domain resource for each UE according to the SINR average value corresponding to each UE and the first position, wherein when the SINR average value corresponding to the first UE is greater than the SINR average value corresponding to the second UE, the distance between the position of a frequency domain resource which is allocated to the first UE correspondingly and the first position is greater than the distance between the position of a frequency domain resource which is allocated to the second UE correspondingly and the first position.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for suppressing false detection of a random access channel. Background technique [0002] In a Time Division Duplexing (TDD for short) system, in order to increase the uplink capacity, it is necessary to maximize the utilization of resources of all uplink resource blocks (Resource Block, RB for short), so in some scenarios, physical uplink The shared channel (Physical Uplink SharedChannel, referred to as PUSCH) channel shares the frequency domain resources of the Physical Random Access Channel (Physical Random Access Channel, referred to as PRACH) channel; or, the adjacent RB that occupies the frequency domain resource of the PRACH channel sends the PUSCH service, but In these two resource scheduling scenarios, it is easy to cause the probability of false detection to be too high (because the greater the Signal to Interference plus Noise Ratio (SINR) of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W74/08H04W72/54
CPCH04W74/0833H04W72/541H04W24/00
Inventor 刘燕武张孝中肖辉
Owner ZTE CORP
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