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Method and device for allocating control channels

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

Inactive Publication Date: 2017-04-26
ZTE CORP
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  • Summary
  • 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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  • Method and device for allocating control channels
  • Method and device for allocating control channels
  • Method and device for allocating control channels

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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 allocation method and device, belonging to the field of mobile communication. Wherein, the allocation method of the control channel includes: receiving a channel request message sent by the terminal; determining the SDCCH subchannel allocated for the terminal according to the frame number when receiving the channel request message; An immediate assignment message of information on the SDCCH sub-channel, so that the terminal sends a SABM frame for establishing an L2 link on the SDCCH sub-channel. The technical scheme of the invention can shorten the call establishment time delay.

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 to perform 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 the immediate assignment message can share all the CCCH (Common Control Channel) blocks with the PCH (Paging Channel) block carrying the paging message. Therefore, immediate assignment messages can...

Claims

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Application Information

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