CN103298026B

CN103298026B - Dynamically configure the method and device of Separate Dedicated Control Channel

Info

Publication number: CN103298026B
Application number: CN201210040449.1A
Authority: CN
Inventors: 李昊然; 瞿小成; 张伟
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-02-22
Filing date: 2012-02-22
Publication date: 2016-09-28
Anticipated expiration: 2032-02-22
Also published as: CN103298026A

Abstract

The invention discloses the method and device of a kind of dynamic configuration Separate Dedicated Control Channel, wherein method includes: judge therebetween the need of changing according to the occupancy of current SDCCH i.e. Separate Dedicated Control Channel and the i.e. Traffic Channel/half rate of TCH/F, if it is determined that needing, select suitable SDCCH or TCH/F alternately channel；Selected alternative TCH/F is converted to SDCCH, or, selected alternative SDCCH is converted to TCH/F；The present invention can be according to currently used channel situation, configuration SDCCH channel adaptively, solves the SDCCH channel congestion brought because of fixed configurations, or the failed situation of conversing that TCH/F scarcity causes.

Description

Dynamically configure the method and device of Separate Dedicated Control Channel

Technical field

The present invention relates to communication technical field, particularly relate to the side of a kind of dynamic configuration Separate Dedicated Control Channel Method and device.

Background technology

TCH/F (traffic channel/full rate) Main Function in the communications is transmission speech and data.SDCCH (Stand-Alone Dedicated Control Channel, Separate Dedicated Control Channel) is a kind of transmitted in both directions DCCH, its Main Function in the communications be appointment business TCH/F (Traffic Channel, Traffic Channel) front transfer system information, transmit signaling message, location update message, short message, authentication disappear Breath, encryption are ordered and process various supplementary service.

The most reasonably select a number of physical channel as SDCCH to transmit signaling, determine The network optimization is had and important effect by the optimal proportion of SDCCH Yu TCH/F.

Generally in GSM (global system for mobile communications) network, configuration to SDCCH is changeless, In this case, if SDCCH configuration is less, TCH/F has more idle channel, and SDCCH sends out Raw congested, business can be caused to access, mobile phone such as cannot network at the problem；If SDCCH configuration is more, TCH/F is relatively fewer, during business assignment request, it is possible that lack TCH/F and failure.According to currently The channel situation used, configures SDCCH adaptively, can solve the SDCCH brought because of fixed configurations Congested, or the failed situation of conversing that TCH/F scarcity causes.

Summary of the invention

In view of above-mentioned analysis, it is desirable to provide a kind of method of dynamic configuration Separate Dedicated Control Channel And device, congested for the SDCCH solving to be brought because of SDCCH fixed configurations, or TCH/F is deficient The weary problem causing call failed.

The purpose of the present invention is mainly achieved through the following technical solutions:

A kind of method that the invention discloses dynamic configuration Separate Dedicated Control Channel, including:

According to taking of current SDCCH i.e. Separate Dedicated Control Channel and the i.e. traffic channel/full rate of TCH/F Amount judge therebetween the need of changing, if it is decided that need, select suitable SDCCH or TCH/F alternately channel；

Selected alternative TCH/F is converted to SDCCH, or, selected alternative SDCCH is converted to TCH/F。

Further, above-mentioned judge process specifically includes:

When there being terminal request channel, calculate the quantity of SDCCH and TCH/F idle in current area, When meeting the first switch condition, select suitable TCH/F alternately TCH/F；Described first conversion stripes Part is: idle SDCCH quantity is pre-more than second less than the quantity of the first predetermined threshold and idle TCH/F Determine threshold value；

And/or,

Periodically calculate the quantity of idle SDCCH in each community, when current area meets the second switch condition Time, select suitable SDCCH alternately SDCCH；Described second switch condition is: idle SDCCH Quantity is more than the 3rd predetermined threshold.

Wherein, described first predetermined threshold is practical experience value；Described second predetermined threshold is greater than the least The useful number of district's transceiver or more than practical experience value；Described 3rd predetermined threshold is greater than 8 and real The sum of border empirical value.

Further, the process selecting suitable TCH/F alternately TCH/F specifically includes:

Select carrier frequency frequency and broadcast channel carrier frequency carrier frequency in same band limits, and empty in this carrier frequency Not busy TCH/F and SDCCH is minimum；

In the carrier frequency picked out, searching successively according to interference fringe priority, dynamic static priority, it is right to select The TCH/F alternately TCH/F that call impact is minimum.

Further, TCH/F is converted to the process of SDCCH and specifically includes:

Inaccessible alternative TCH/F, and notify that base station side carries out increment configuration；

After base station side increment has configured, configuration information revised accordingly by base station side controller, and unblocks alternative TCH/F。

Further, SDCCH is converted to the process of TCH/F and specifically includes:

Inaccessible alternative SDCCH, and force to switch traffic thereon, after handover success, notify that base station side is carried out Increment configures；

After base station side increment has configured, configuration information revised accordingly by base station side controller, and unblocks alternative SDCCH。

The invention also discloses the device of a kind of dynamic configuration Separate Dedicated Control Channel, including:

Judging unit, for believing according to current SDCCH i.e. Separate Dedicated Control Channel and the i.e. business of TCH/F The occupancy of road/full rate judges therebetween the need of changing, if it is decided that need, and it is suitable to select SDCCH or TCH/F alternately channel；

Converting unit, for selected alternative TCH/F is converted to SDCCH, or, by selected standby SDCCH is selected to be converted to TCH/F.

Further, described judging unit specifically includes: the first judge module and/or the second judge module, its In,

First judge module, for when there being terminal request channel, calculates SDCCH idle in current area With the quantity of TCH, when meeting the first switch condition, select suitable TCH/F alternately TCH/F； Described first switch condition is: idle SDCCH quantity is less than the first predetermined threshold and idle TCH/F Quantity is more than the second predetermined threshold；

Second judge module, for periodically calculating the quantity of idle SDCCH in each community, when the least When district meets the second switch condition, select suitable SDCCH alternately SDCCH；Described second conversion Condition is: idle SDCCH quantity is more than the 3rd predetermined threshold.

Further, described converting unit specifically includes:

First modular converter, for inaccessible alternative TCH/F, and notifies that base station side carries out increment configuration；And After base station side increment has configured, trigger base station side controller and revise configuration information accordingly, and unblock standby Select TCH/F；

Second modular converter, for inaccessible alternative SDCCH, forces to switch traffic thereon, and in switching Notify after success that base station side carries out increment configuration；And after base station side increment has configured, trigger base station side Configuration information revised accordingly by controller, and unblocks standby SDCCH.

The present invention has the beneficial effect that:

The present invention can configure SDCCH adaptively according to the situation of currently used channel, solves because of fixing The SDCCH that configuration is brought is congested, or TCH scarcity causes failed problem of conversing.

Other features and advantages of the present invention will illustrate in the following description, and, part from explanation Book becomes apparent, or understands by implementing the present invention.The purpose of the present invention and other advantages can Realize by structure specifically noted in the description write, claims and accompanying drawing and obtain ?.

Accompanying drawing explanation

Fig. 1 is in method described in the embodiment of the present invention, and TCH/F is converted to the schematic flow sheet of SDCCH；

Fig. 2 is in method described in the embodiment of the present invention, and SDCCH is converted to TCH/F schematic flow sheet；

Fig. 3 is the structural representation of device described in the embodiment of the present invention.

Detailed description of the invention

Specifically describing the preferred embodiments of the present invention below in conjunction with the accompanying drawings, wherein, accompanying drawing constitutes the application one Part, and together with embodiments of the present invention for explaining the principle of the present invention.For purpose of clarity and simplification, When it may make subject of the present invention smudgy, will omit in device described herein known function and Illustrating in detail of structure.

First, in conjunction with attached Fig. 1 and 2, method described in the embodiment of the present invention is described in detail.

The dynamic translation of SDCCH mainly comprises two parts, a part be TCH/F to SDCCH dynamic translation, Another part is that SDCCH converts back TCH/F, will be described in detail respectively below.

As it is shown in figure 1, Fig. 1 is in method described in the embodiment of the present invention, the conversion stream of TCH/F-> SDCCH Journey schematic diagram, specifically may include that

Step 101: user terminal carries out channel request；

Step 102: according to the service conditions of current area, it may be judged whether trigger TCH/F-> SDCCH conversion, If it is, perform step 103, otherwise terminate handling process；This step specifically may include that calculating is the least SDCCH and TCH/F quantity idle in district, it may be judged whether meet the first switch condition, if it is, touch Send out the flow process that TCH/F changes to SDCCH, i.e. forward step 103 to；Wherein, the first switch condition is: Whether idle SDCCH is less than the first predetermined threshold, and the quantity of the TCH/F of free time is pre-more than second Determine threshold value；The empirical value that according to first predetermined threshold, actual application determines, is set as 4 in the embodiment of the present invention； Second predetermined threshold should be greater than in current area TRX (transceiver) useful number or more than reality application The empirical value determined, is again set at 4 in the embodiment of the present invention；

Step 103: select suitable TCH/F alternately TCH/F；It is exactly specifically, for preventing some Double frequency do not supported by mobile phone, selects carrier frequency frequency and broadcast channel carrier frequency carrier frequency in same band limits, with Time minimum in order to meet the impact of traffic, in also requiring this carrier frequency, idle TCH/F and SDCCH is minimum；

After finding suitable carrier frequency, search successively according to interference fringe priority, dynamic static priority, finally select The TCH/F alternately TCH/F minimum on call impact；

Step 104: the alternative TCH/F of manual block, prevents alternative TCH/F from being taken as traffic channel；

Step 105: by the gap information of alternative TCH/F by increment configuration distributing to base station side, by base station side Carry out the configuration change of physics；Wherein, the purpose of increment configuration is only to be synchronized by the gap information needing amendment To base station side, reduce unnecessary data volume, it is to avoid to Abis interface (side of base station controller and base station as far as possible Communication interface between the transceiver station of side) transmission bandwidth causes unnecessary waste；

Step 106: intervalometer T1 is set and waits that base station side is replied；Wherein, the purpose arranging intervalometer T1 exists In, it is ensured that data configuration success, next to that guarantee that BSC (side of base station controller) and BTS (receive by base station side Sending station) data consistent, if response time-out or receive and unsuccessfully reply, illustrate that base station side does not has correct increasing Amount synchronizes；

Step 107: judge that intervalometer T1 is the most overtime, if it is, forward step 112 to, otherwise perform step 108；

Step 108: judge base station side whether successful respond, if it is, the increment of explanation base station side has configured Complete, perform step 109；Otherwise stop intervalometer T1, and forward step 113 to；

Step 109: after stopping intervalometer 1, side of base station controller revises configuration information accordingly；

Step 110: alternative TCH/F is added SDCCH queue

Step 111: unblock alternative TCH/F, waits and switching next time.

It should be noted that in order to realize being adaptively adjusted SDCCH quantity, it is necessary to there is sweeping of complete set The mechanism of retouching goes detection and triggering SDCCH to switch flow process, and periodically clocked flip TCH/F turns to SDCCH Changing, promptness is the best, if the current SDCCH of system made to be finished depending on time device the most do not arrive, no TCH/F-> SDCCH conversion can be initiated immediately, the most just cannot avoid situation about using without SDCCH, may User can be caused to network, user's trawlnet or community handoff failure, therefore TCH/F-> SDCCH changes Select to trigger in real time.

As in figure 2 it is shown, Fig. 2 is SDCCH-> TCH/F flow path switch schematic diagram, specifically may include that

Step 201: pre-set cycle timer T2, after cycle timer T2 time-out, performs step 202；

Step 202: restart cycle timer T2；

Step 203: whether this cycle scans whole community, if it is, flow process terminates, otherwise forwards step to 204；

Step 204: scan next community；

Step 205: current area is the need of SDCCH-> TCH/F conversion？If it is, perform step 206, Otherwise forward step 204 to；It should be noted that turn owing to processing TCH/F-> SDCCH under same community Change and SDCCH-TCH/F flow path switch is mutual exclusion, the most same community can not i.e. occur SDCCH-> TCH/F changes, and occurs again TCH/F-> SDCCH to change, therefore at SDCCH-> TCH/F During conversion, the number of SDCCH idle in current area to be added up, it may be judged whether meet the second switch condition, If it is, just trigger SDCCH-> TCH/F flow path switch；Wherein, the second switch condition Ji Qian community hollow The number of not busy SDCCH whether more than the 3rd predetermined threshold, and the setting of the 3rd predetermined threshold needs and TCH/F-> SDCCH transition trigger condition mutual exclusion, it is to avoid conflict, sets the 3rd and makes a reservation in the embodiment of the present invention Threshold value is greater than the empirical value (being 4 in the embodiment of the present invention) and 8 (1 TCH/F determined according to reality application Corresponding 8 SDCCH, i.e. 8 SDCCH are converted to 1 TCH/F) sum；

Step 206: trigger the conversion of SDCCH-> TCH/F；

Step 207: choose the SDCCH alternately SDCCH becoming TCH/F again；It is exactly specifically, During TCH/F-> SDCCH conversion, this community is become, by TCH/F, the SDCCH come and is entirely insertable SDCCH Queue, when SDCCH is converted to TCF/H, can inquire about the SDCCH of free time from this queue；

Step 208: the alternative SDCCH of manual block, prevents alternative SDCCH from being selected else him and uses；

Step 209: switching traffic；It is exactly specifically, after alternative SDCCH is blocked for, although will not connect Enter to make new traffic, but the traffic on current SDCCH channel still can be affected, thus conversion with Before need to switch away traffic thereon；

Step 210: waiting timer T3 is set；

Step 211: intervalometer T3 is the most overtime, if it is, forward step 214 to, otherwise performs step 212；

Step 212: switching traffic is the most successful, if it is, perform step 213, otherwise forwards step 214 to；

Step 213: side of base station controller notice base station side carries out increment configuration, then performs step 215；

Step 214: the traffic on the alternative SDCCH of forcible aborting；

Step 215: start intervalometer T4, waits the response of base station side configuration successful；

Step 216: intervalometer T4 is the most overtime, if it is, forward step 221 to, otherwise performs step 217；

Step 217: judge whether to receive the configuration successful response that base station side is replied, if it is, perform step 218, Otherwise stop intervalometer T4, and forward step 221 to；

Step 218: stop intervalometer T4, and perform step 219；

Step 219: side of base station controller revises configuration information accordingly, keeps data consistent；

Step 220: alternative SDCCH goes out SDCCH queue；

Step 221: unblock alternative SDCCH, terminates flow path switch.

It should be noted that the triggering of SDCCH-> TCH/F conversion can be not provided with triggering in real time, only in week Detect the when of the scanning of phase property, this is because if the quantity of TCH/F is few, channel at most can be caused to gather around Plug, has no effect on user-network access, the highest to requirement of real-time.

Next combine accompanying drawing 3 device described in the embodiment of the present invention is described in detail.

As it is shown on figure 3, Fig. 3 is the structural representation of device described in the embodiment of the present invention, specifically may include that Judging unit and converting unit, wherein,

Judging unit, according to current SDCCH i.e. Separate Dedicated Control Channel and TCH/F i.e. Traffic Channel/complete The occupancy of speed judges therebetween the need of changing, if it is decided that need, and selects suitably SDCCH or TCH/F alternately channel.

Above-mentioned judging unit specifically may include that the first judge module and/or the second judge module, wherein,

First judge module, when there being terminal request channel, calculate SDCCH idle in current area and The quantity of TCH/F, when meeting the first switch condition, selects suitable TCH/F alternately TCH/F, Described first switch condition is: idle SDCCH quantity is less than the first predetermined threshold and idle TCH/F Quantity is more than the second predetermined threshold；Wherein, described first predetermined threshold is practical experience value；Described second pre- Determine threshold value and be greater than the useful number of current area transceiver or more than practical experience value；

Second judge module, periodically calculates the quantity of idle SDCCH in each community, when current area is full During foot the second switch condition, select suitable SDCCH alternately SDCCH, described second switch condition For: idle SDCCH quantity is more than the 3rd predetermined threshold；Wherein, described 3rd predetermined threshold is greater than 8 Sum with practical experience value.

Converting unit, is converted to SDCCH by selected alternative TCH/F, or, by selected alternative SDCCH is converted to TCH/F；Converting unit specifically may include that

First modular converter, inaccessible alternative TCH/F, and notify that base station side carries out increment configuration；And at base After side increment of standing has configured, trigger side of base station controller and revise configuration information accordingly, and unblock alternative TCH/F；

Second modular converter, inaccessible alternative SDCCH, force to switch traffic thereon, and at handover success Rear notice base station side carries out increment configuration；And after base station side increment has configured, trigger base station controller Side revises configuration information accordingly, and unblocks standby SDCCH.

It should be noted that due to each functional unit and module the process that implements the most Elaborate, therefore here is omitted.

In sum, embodiments provide a kind of dynamic configuration Separate Dedicated Control Channel method and Device, can automatically adjust SDCCH Yu TCH/F quantity according to the occupancy of present channel.When with The when that the intervention amount at family being increased sharply, required SDCCH quantity is increased sharply, and now idle TCH/F is more, TCH/F can be converted to SDCCH by system automatically；When telephone traffic is more, and now in community When SDCCH quantity is more, system can go back to as TCH/F as SDCCH automatically.The embodiment of the present invention Technical scheme need not attendant manual go change proportioning, it is possible to take quantity according to present channel, Adaptive regulation channel configuration ratio, greatly improves adaptive ability and the motility of network.

The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office Being limited to this, any those familiar with the art, can be easily in the technical scope that the invention discloses The change expected or replacement, all should contain within protection scope of the present invention.Therefore, the protection of the present invention Scope should be as the criterion with the protection domain of claims.

Claims

1. the method for a dynamic configuration Separate Dedicated Control Channel, it is characterised in that including:

Selected alternative TCH/F is converted to SDCCH, or, selected alternative SDCCH is converted to TCH/F；

The process selecting suitable TCH/F alternately TCH/F specifically includes:

In the carrier frequency picked out, searching successively according to interference fringe priority, dynamic static priority, it is right to select The TCH/F alternately TCH/F that call impact is minimum；

Above-mentioned judge process specifically includes:

When there being terminal request channel, calculate the quantity of SDCCH and TCH/F idle in current area, When meeting the first switch condition, select suitable TCH/F alternately TCH/F；Described first conversion stripes Part is: idle SDCCH quantity is pre-more than second less than the quantity of the first predetermined threshold and idle TCH/F Determine threshold value；And/or,

Method the most according to claim 1, it is characterised in that described first predetermined threshold is actual warp Test value；Described second predetermined threshold is greater than the useful number of current area transceiver or more than actual warp Test value；Described 3rd predetermined threshold is greater than 8 and the sum of practical experience value.

Method the most according to claim 1, it is characterised in that TCH/F is converted to SDCCH's Process specifically includes:

Method the most according to claim 1, it is characterised in that SDCCH is converted to the mistake of TCH/F Journey specifically includes:

Inaccessible alternative SDCCH, and force to switch traffic thereon, after handover success, notify that base station side is entered Row increment configures；

5. the device of a dynamic configuration Separate Dedicated Control Channel, it is characterised in that including:

Described judging unit, for selecting carrier frequency frequency and broadcast channel carrier frequency load in same band limits Frequently, idle TCH/F and SDCCH is minimum and in this carrier frequency；In the carrier frequency picked out, according to interference Band priority, dynamic static priority are searched successively, select the TCH/F on call impact minimum alternately TCH/F；

Converting unit, for selected alternative TCH/F is converted to SDCCH, or, by selected standby SDCCH is selected to be converted to TCH/F；

Described judging unit specifically includes: the first judge module and/or the second judge module, wherein,

Device the most according to claim 5, it is characterised in that described first predetermined threshold is actual warp Test value；Described second predetermined threshold is greater than the useful number of current area transceiver or more than actual warp Test value；Described 3rd predetermined threshold is greater than 8 and the sum of practical experience value.

Device the most according to claim 5, it is characterised in that described converting unit specifically includes:

Second modular converter, for inaccessible alternative SDCCH, forces to switch traffic thereon, and in switching Notify after success that base station side carries out increment configuration；And after base station side increment has configured, trigger base station side Configuration information revised accordingly by controller, and unblocks alternative SDCCH.