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Control channel distribution method and device

A technology for controlling channels and distribution methods, applied in wireless communication, connection management, electrical components, etc., can solve the problems of prolonged call establishment, long waiting time, and different call establishment delays, and achieve the effect of shortening the establishment delay

Inactive Publication Date: 2014-04-09
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that choosing different CCCH blocks to send immediate assignment messages and assigning different SDCCH sub-channels to terminals will result in different call setup delays
[0005] In the prior art, when the network sends an immediate assignment message and allocates an SDCCH subchannel to a terminal, it only needs to select a free and available CCCH block and SDCCH subchannel. Therefore, the terminal often needs to wait for a long time after receiving the immediate assignment message. Time to wait until the uplink SABM frame is sent on its own SDCCH sub-channel, resulting in a relatively long call establishment delay

Method used

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  • Control channel distribution method and device

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Embodiment Construction

[0047] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0048] Embodiments of the present invention aim at the prior art when the network sends an immediate assignment message and allocates an SDCCH subchannel to a terminal, it only needs to select a free and available CCCH block and an SDCCH subchannel, so the terminal often receives the immediate assignment message It takes a long time to wait until the uplink SABM frame is sent on its own SDCCH sub-channel, resulting in a relatively long call setup delay. A control channel allocation method and device are provided to shorten the call setup delay.

[0049] Figure 4 It is a schematic flowchart of a method for allocating a control channel according to an embodiment of the present invention, such as Figure 4 As shown, this embodiment incl...

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Abstract

The invention provides a control channel distribution method and a control channel distribution device and belongs to the field of mobile communication. The control channel distribution method includes the following steps that: a channel request message transmitted by a terminal is received; an SDCCH sub channel allocated for the terminal is determined according to a frame number generated when the channel request message is received; and an instance assignment message carrying the information of the SDCCH sub channel is transmitted to the terminal, so that the terminal can transmit an SABM frame for establishing an L2 link in the SDCCH sub channel. With the control channel distribution method and the control channel distribution device of the invention adopted, call establishment delay can be shortened.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a control channel allocation method and device. Background technique [0002] In the GSM (Global System of Mobile communication, Global System for Mobile Communications) system, when the MS (terminal) wants to access the network for circuit switching services, the base station generally needs to allocate an SDCCH channel (Stand-alone Dedicated Control Channel, independent dedicated control channel), which is notified to the terminal through an immediate assignment message, such as figure 1 shown. Then the terminal accesses the SDCCH channel to establish an L2 link and transmit signaling. According to the 3GPP TS45002 protocol, the AGCH (Access Grant Channel) block carrying immediate assignment messages can share all the CCCH (Common Control Channel) blocks with the PCH (Paging Channel) block carrying paging messages. Therefore, immediate assignment messages can be sent on a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W76/02
CPCH04W72/0406H04W76/02H04W72/20
Inventor 周恩惠王洪建
Owner ZTE CORP
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