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Method for adjusting physical random access channel (PRACH) resource density and base station

A base station and resource technology, applied in electrical components, wireless communication and other directions, can solve problems such as affecting user access and handover process, unreasonable resource planning, affecting user service experience, etc., to ensure access success rate and handover success rate. , Accurate Preamble resource status, improve the effect of business perception

Active Publication Date: 2013-05-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] If the RACH (Random Access Channel, random access channel) resource planning is unreasonable, it will greatly affect the user's access and handover process, thereby affecting the user's service experience

Method used

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  • Method for adjusting physical random access channel (PRACH) resource density and base station
  • Method for adjusting physical random access channel (PRACH) resource density and base station
  • Method for adjusting physical random access channel (PRACH) resource density and base station

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] In order to realize the object of the present invention, the present invention discloses a method for adjusting PRACH resource density. figure 1 A flow diagram of the method is shown. The method comprises the steps of:

[0030] S101: The base station performs Preamble sequence detection, and receives measurement information of a random access channel RACH sent by a user equipment UE.

[0031] combine figure 2 As shown, before implementing the Preamble sequence detection of the base station, clear the value of the performance c...

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Abstract

The invention discloses a method for adjusting the resources density of Physical Random Access Channels (PRACHs), including that: a base station detects Preamble sequences, and receives measurement information of Random Access Channels (RACHs) sent by user equipments (UEs); the base station calculates a Preamble contention probability (CP) of a cell within a period T; the base station compares the Preamble contention probability (CP) with a contention probability threshold (CP_Thre), and according to the result of the comparison, adjusts the PRACH resources density N. The invention also discloses a base station, which includes: a reception module, a calculation module and an adjustment module. According to the technical method, the base station adjusts the value of the PRACH resources density N, optimizes PRACH resources, which ensures a user access success rate and handover success rate, enhances the user's perception and estimates the Preamble resources status of the cell more accurately.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular, the present invention relates to a method for adjusting PRACH resource density and a base station. Background technique [0002] Mobile and broadband have become the development direction of modern communication technology. 3GPP (3rd Generation Partnership Project) is committed to the evolution of LTE (Long Term Evolution, long-term evolution) system as a 3G system. The goal is to develop 3GPP wireless access technology towards Evolution for high data rate, low latency and optimized packet data applications. [0003] The main performance goals of the 3GPP LTE project include: providing a peak rate of downlink 100Mbps and uplink 50Mbps in a 20MHz spectrum bandwidth; improving the performance of cell edge users; increasing cell capacity; reducing system delay, and the one-way transmission delay within the user plane is less than 5ms , the transition time of the control p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W72/12H04W74/08H04W72/54
CPCH04W74/0833H04W72/085H04W72/542
Inventor 董书霞张杰
Owner DATANG MOBILE COMM EQUIP CO LTD
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