A method and system for indicating the available channel to send the uplink access request
A technology of access request and channel, applied in wireless communication, electrical components, network topology, etc.
Active Publication Date: 2010-05-12
HUAWEI TECH CO LTD
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However, since the current 1.5 channel implementation methods all use the uplink group call channel allocated when the group call is established to send the uplink access request, unlike the 1.0 channel implementation method, the uplink group call channel is sent through the downlink channel. When the user sends an uplink access request to the two implementation methods that support both, the following problems occur
Problem 1: The user cannot know which implementation method is currently adopted by the network side of the trunking system, so when the message that the uplink group call channel is idle cannot be received through the downlink channel, the user does not know whether to send the uplink connection through the uplink group call channel or through the RACH channel. Incoming request; Question 2: If the network side of the trunking system adopts the implementation method of 1.5 channels, but in the process of allocating the uplink group call channel to the speaking party first, and then reassigning the dedicated uplink channel for speaking, the listening party cannot pass through the speaking party. The currently occupied uplink group call channel initiates an uplink access request
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[0041] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail by giving specific embodiments and referring to the accompanying drawings.
[0042] When the trunking system network side supports the 1.5 channel implementation method and / or the 1.0 channel implementation method, regardless of whether the trunking system network side is currently using the 1.5 channel implementation method or the 1.0 channel implementation method, the user in the trunking group sends an uplink access request The uplink channel can only be the uplink group call channel allocated when the group call is set up or the RACH in the trunking group. Therefore, the method provided by the present invention can be unified no matter which channel is currently used on the trunking system network side. Use the downlink channel to send the indication message to indicate which uplink channel the users in the trun...
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The invention discloses a method for prompting a usable channel for sending an uplink aceessing request, the method comprises that, a trunking communication network sends an usable channel busy message or a voice group-calling service additional information message with a prompting message in a trunking group cell, the prompting message carries a message for prompting whether an uplink group-calling channel of a trunking group is usable; a receiver in the cell of the trunking group determines whether the uplink group-calling channel is usable based on the received uplink busy message or the information carried in the prompting message of the voice group-calling service additional information message, if it is, the uplink accessing request is sent via the uplink group-calling channel; otherwise, the uplink accessing request is sent via a random accessing channel.
Description
Technical field [0001] The present invention involves the technique of seizing the ride -handed channel in the cluster wireless communication system, and specially involves a method and system that indicates that the access to the access request can be available. Background technique [0002] The cluster wireless communication system, hereinafter referred to as the cluster system, is a more economical and flexible command dispatch communication system developed in recent years.Military units to meet the needs of internal communication in all units. [0003] The cluster system provides the most basic business is the voice group call business (VGCS).VGCS allows users to establish a call from multiple users in a group of groups that belong to a given service area and a cluster group with the same group logo (ID).Or different MSC communities, the VGCS adopts a semi -duplex mode, users in a cluster group during the call period can become the speaker, but only one speaker at any time ...
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IPC IPC(8): H04W84/08H04W74/00
Inventor 柳光陈德郑雅莉
Owner HUAWEI TECH CO LTD