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A random channel allocation method under multiple plmn

An allocation method and random channel technology, applied in the field of communication, can solve the problem of random access channel isolation and no solution provided, and achieve the effect of avoiding random access channel congestion and improving system reliability.

Active Publication Date: 2021-08-06
CHINA ACADEMY OF INFORMATION & COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the isolation of traffic channels is mainly realized by scheduling algorithms, and the traffic channel scheduling area is predefined for each business, but no solution is provided for the isolation of random access channels

Method used

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  • A random channel allocation method under multiple plmn

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Embodiment Construction

[0012] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and examples.

[0013] The embodiment of the present application provides a method for random channel allocation under multiple PLMNs, which is applied in RAN sharing networking, and multiple different PLMN IDs are broadcast through the system information 1 (SIB1) message, and at the same time, the system information 2 (SIB2) message is used for Each PLMN is configured with a corresponding random access channel, which realizes the isolation of the random access channel, avoids random access channel congestion when a large number of terminals access, and effectively improves system reliability.

[0014] The process of implementing random channel allocation under multiple PLMNs in the embodiment of the present application will be described in detail belo...

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Abstract

The present application provides a random channel allocation method under multiple PLMNs, the method includes: when the network side device broadcasts N PLMN IDs through the SIB1 message, configures the corresponding random access information for each PLMN through the SIB2 message; any user terminal Select the PLMN network to be accessed through the configured HPLMN information and the SIB1 message, and determine the corresponding PRACH index in the prach-ConfigIndexlist of SIB2 according to the accessed PLMN network, and select the random access channel position corresponding to the determined PRACH index for random access. Through this solution, random access channel isolation can be realized, random access channel congestion can be avoided when a large number of terminals are connected, and system reliability can be effectively improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a random channel allocation method under multiple public land mobile networks (Public Land Mobile Network, PLMN). Background technique [0002] Currently, in the long-term evolution (LTE) shared carrier frequency Radio Access Network (RAN) sharing technology, operators share the same frequency, share cell-level configuration and characteristics, and each cell can broadcast multiple The operator's PLMN ID, shared random access channel and control channel. [0003] In the domestic 1.4GHz and 1.8GHz industrial wireless private network, due to the limitation of available frequency (about 5-10MHz) and the requirement of business security isolation, the system usually adopts RAN sharing technology, which requires the system to be able to broadcast multiple PLMN IDs. PLMN accesses different service terminals, and also requires isolation of service channels and random acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/10H04W74/00H04W74/08
CPCH04W48/10H04W74/006H04W74/0833
Inventor 杜加懂郭雅娟许海清韦磊孙云晓朱道华
Owner CHINA ACADEMY OF INFORMATION & COMM