CN101188863A - Allocation method for independent private control channel - Google Patents
Allocation method for independent private control channel Download PDFInfo
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- CN101188863A CN101188863A CNA2007101610175A CN200710161017A CN101188863A CN 101188863 A CN101188863 A CN 101188863A CN A2007101610175 A CNA2007101610175 A CN A2007101610175A CN 200710161017 A CN200710161017 A CN 200710161017A CN 101188863 A CN101188863 A CN 101188863A
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- control channel
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Abstract
The invention discloses a SDCCH assignment method which includes the following steps: the step of S202: BTS obtains the description of the channel allocation information of a SDCCH group which can be used as well as the state of each strip of SDCCH in the SDCCH group; the step of S204: the related parameters are obtained according to a channel request command when the BTS receives the channel request command sent by MS; the step of S206: the BTS selects one SDCCH in the SDCCHs, wherein, the selected SDCCH is allocated with the channel allocation information; and the step of S208: the BTS assigns the selected SDCCH to the MS, and informs the related parameters to the MS. Through the invention, the signaling traffic pressure of an Abis interface can be greatly reduced.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of assigning method that is used for the Separate Dedicated Control Channel of global system for mobile communications.
Background technology
According to current comprehensive mobile communication system (GSM) agreement, under any circumstance, travelling carriage (MS) inserts the GSM network as need, all should at first send to insert at random to base station sub-system (BSS) and ask application-specific control channel (DCCH).Accordingly, BSS is receiving that inserting the request back at random carries out the channel activation and assign flow process.
Generally, BSS can be a Separate Dedicated Control Channel of MS assignment (SDCCH); If the SDCCH resource is unavailable, then be a Fast Associated Control Channel of MS assignment (FACCH).
Fig. 1 is the signaling process figure according to the assigning method of the Separate Dedicated Control Channel of prior art.
As shown in Figure 1, in step 101 and 102, channel request (Channel Request) message that MS sends by Random Access Channel (RACH) is resolved in base station (BTS), know the access value at random (RA) and current C hannel Request message time corresponding retardation (TA) and the frame number (FN) that carry in the current C hannel Request message, in this article these three amounts are called current RA, TA and FN; BTS carries current RA, TA and FN at least to base station controller (BSC) channel request (Channel Required) message in this message;
Step 103 to 106 in, BSC is that MS distributes SDCCH according to the Radio Resource situation of network; BSC notice BTS carries out activation process and activates the SDCCH that is distributed; BSC sends Assignment Command (IMM ASS) to BTS, and notice BTS is that MS distributes the SDCCH that is activated; BTS sends assignment (IMM ASS) message to MS, wherein carries the channel of the SDCCH that distributes to MS and describes.
Wherein, can comprise further that in step 104 step 104a to 104c:BSC transmitting channel activates (CHAN ACTIV) message informing BTS and prepares the respective channel resource; BTS prepares the respective channel resource; The BTS Return Channel activates and confirms that (CHAN ACTIV ACK) message is to BSC.
Signaling process from Fig. 1 as can be seen, complete SDCCH assignment process is altogether four message at the Abis mouth, that is, Channel Required, Channel Active, ChannelActive Ack and IMM_ASS.Can reach a conclusion from the quantitative statistics of Abis signaling flow: owing to no matter be caller, called or position renewal, at first all will carry out the SDCCH assignment, the signaling traffic of the assignment process of SDCCH has occupied a big chunk of total signaling traffic.Because the restriction of Abis mouth lapd flow reduces SDCCH and assigns flow process that the pressure that Abis mouth flow brings is necessary.Yet, the present technical scheme that does not propose to reduce Abis mouth flow pressure as yet.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of assignment scheme of Separate Dedicated Control Channel, to solve the excessive problem of Abis interface pressure that signaling too much causes in the correlation technique.
According to embodiments of the invention, provide a kind of assigning method of Separate Dedicated Control Channel.This method can be used for global system for mobile communications, and wherein, global system for mobile communications can comprise travelling carriage, base station controller and base station.
Assigning method according to the Separate Dedicated Control Channel of the embodiment of the invention comprises: step S202, and the base station obtains the description of channel configuration information of its Separate Dedicated Control Channel group that can use and the state of every Separate Dedicated Control Channel in the Separate Dedicated Control Channel group; Step S204, when receiving the channel request order of travelling carriage transmission in the base station, relevant parameter is obtained in order according to channel request; Step S206, a Separate Dedicated Control Channel is selected in the base station in the Separate Dedicated Control Channel group, and wherein, the Separate Dedicated Control Channel of selection disposes channel configuration information; And step S208, the Separate Dedicated Control Channel that the base station is selected the travelling carriage assignment, and relevant parameter informed travelling carriage.
Wherein, in step S206, the Separate Dedicated Control Channel under the upstate is selected to be in the base station from the Separate Dedicated Control Channel group.In step S206, may further include: the base station is activated the Separate Dedicated Control Channel of selecting.And activating under the case of successful, in step S208, travelling carriage is given with the Separate Dedicated Control Channel assignment that activates in the base station, activating under the unsuccessful situation, and base station reporting base station controller, and processing finishes.
In addition, in step S208, assignment message assignment Separate Dedicated Control Channel is passed through in the base station, and carries relevant parameter in assignment message.Above-mentioned relevant parameter can comprise access value at random, time delay and frame number.Wherein, the base station obtains access value at random from the channel request order, and obtains time delay and frame number according to the channel request order.
In addition, above-mentioned channel configuration information comprises: time slot, channelling mode, base station use power, travelling carriage to use power and channel to describe.
By technique scheme of the present invention, can effectively reduce the signaling traffic pressure of Abis mouth.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the signaling process figure according to the assigning method of the Separate Dedicated Control Channel of correlation technique;
Fig. 2 is the flow chart according to the assigning method of the Separate Dedicated Control Channel of the embodiment of the invention; And
Fig. 3 is the flow chart according to the processing example of the assigning method of the Separate Dedicated Control Channel of the embodiment of the invention.
Embodiment
The assigning method of a kind of Separate Dedicated Control Channel (SDCCH) is provided in the present embodiment.This method is placed on BTS inside with the assignment procedure of SDCCH and realizes, Channel Required, Channel Active (SDCCH), Channel Active Ack (SDCCH) and four signalings of IMM_ASS are no longer occurred at the Abis mouth, assign the flow pressure of signaling the Abis mouth thereby can solve SDCCH.
This method can be used for global system for mobile communications, and wherein, global system for mobile communications can comprise travelling carriage (MS), base station controller (BSC) and base station (BTS).
As shown in Figure 2, the assigning method according to the SDCCH of the embodiment of the invention comprises: step S202, BTS obtain the description of channel configuration information of its SDCCH that can use group and the state of every SDCCH in the SDCCH group; Step S204, when BTS received the channel request order of MS transmission, relevant parameter was obtained in order according to channel request; Step S206, BTS selects a SDCCH in the SDCCH group, and wherein, the SDCCH of selection disposes channel configuration information; And step S208, the SDCCH that BTS selects the MS assignment, and relevant parameter informed MS.
Wherein, in step S206, BTS selects to be in the SDCCH under the upstate from the SDCCH group.In step S206, may further include: BTS activates the SDCCH that selects.And activating under the case of successful, in step S208, BTS gives MS with the SDCCH assignment that activates, and is activating under the unsuccessful situation, and BTS reports BSC, and processing finishes.
In addition, in step S208, BTS is by assignment (IMM_ASS) message assignment SDCCH, and carries relevant parameter in assignment message.Above-mentioned relevant parameter can comprise access value at random, time delay and frame number.Wherein, BTS obtains access value at random from the channel request order, and obtains time delay and frame number according to the channel request order.
In addition, above-mentioned channel configuration information comprises: power (MSPower) and channel that time slot, channelling mode, BTS use power (BTSPower), MS to use are described (channel of for example, stipulating in the agreement is described).
Can above-mentioned processing simplified summary is as follows:
BTS obtains the channel configuration of SDCCH channel and describes, and upstate;
BTS receives the channel request order (Channel Request) that MS sends;
BTS extracts the RA in the channel request order, and record TA and FN at that time;
BTS activates the SDCCH channel;
BTS sends IMM_ASS message to MS, gives MS with the SDCCH channel assignment that activates.
Adopted after the SDCCH assigning method provided by the invention, the switching on the SDCCH channel is with no longer valid.In order to guarantee flexibility, can will dispose a switching value at network side, determine whether adopting SDCCH assigning method provided by the present invention.
Fig. 3 is the concrete flow chart of handling example of of method of the present invention.As shown in Figure 3, specifically can may further comprise the steps:
Step 301:BTS obtains the channel configuration data of SDCCH channel, and upstate.The channel configuration data comprise: the power (MS Power) that power (BTS Power) that used timeslot number, discontinuous transmission (DTX) occupation mode, channelling mode, the BTS of SDCCH channel uses and MS use, and the channel description of agreement defined etc.These channel configuration data need BSC to be configured to BTS in advance.Upstate can be meant whether channel resource is available, whether the controlled state of channel is available, and this flow process status switch (B_BTS_SDCCH_ASS) whether effectively;
Step 302:BTS receives channel request (Channel Request) order that MS sends, BTS receives the channel request order that MS sends on the RACH channel, if the B_BTS_SDCCH_ASS switch is set to OFF, then BTS just channel request (Channel Request) message transformation be Channel Required message, comprise RA, the TA and the FN that are recorded, send to BSC, withdraw from this flow process; If the B_BTS_SDCCH_ASS switch is set to ON, then carry out next step operation;
Step 303:BTS extract in the Channel Request order with the RA value, and write down current TA and FN.RA further comprises two fields: length is access reason (EC) field of 3 to 6 bits, and expression MS requires to insert the reason of GSM network, and length is random reference value (RR) field of 2 to 5 bits; According to the RACH Control Parameter of network configuration, abandon the channel request order of EC possibly for some particular value, for example, network is not supported the PS business, then EC is that the relevant channel request of PS then needs to abandon.
After step 304:BTS receives the channel request order, this BTS being gone up the upstate of the SDCCH channel of configuration checks, if all subchannels of the SDCCH channel of this BTS are all unavailable, be Channel Required message then with channel request (Channel Request) message transformation, comprise RA, the TA and the FN that are recorded, send to BSC, withdraw from this flow process; If still have available channel then to carry out next step operation;
Step 305:BTS selects certain available SDCCH subchannel, adopts the channel configuration data of the preservation of describing in the step 301 that this SDCCH subchannel is activated.If activate failure, then report BSC, and withdraw from this flow process; If activate successfully, then carry out next step operation;
Step 306:BTS assembling IMM_ASS message wherein comprises RA, TA and the FN of record, and to the MS transmission, the SDCCH subchannel that activates is assigned to MS.
In sum, by means of technical scheme of the present invention, can make ChannelRequired, Channel Active (SDCCH), Channel Active Ack (SDCCH) and four signalings of IMM_ASS not appear at the Abis mouth, thereby effectively reduce the signaling traffic pressure of Abis mouth.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the assigning method of a Separate Dedicated Control Channel is used for global system for mobile communications, and described global system for mobile communications comprises travelling carriage, base station controller and base station, it is characterized in that, described method comprises:
Step S202, described base station obtains the description of channel configuration information of its Separate Dedicated Control Channel group that can use and the state of every Separate Dedicated Control Channel in the described Separate Dedicated Control Channel group;
Step S204 when receiving the channel request order of described travelling carriage transmission in described base station, obtains relevant parameter according to described channel request order;
Step S206, a Separate Dedicated Control Channel is selected in described base station in described Separate Dedicated Control Channel group, and wherein, the described Separate Dedicated Control Channel of selection disposes described channel configuration information; And
Step S208, the described Separate Dedicated Control Channel that described base station is selected described travelling carriage assignment, and described relevant parameter informed described travelling carriage.
2. method according to claim 1 is characterized in that, described channel request order comprises and further comprises switching value, when switching value is the pass, described base station reports described base station controller with described relevant parameter, and termination, otherwise carries out described step S206.
3. method according to claim 1 is characterized in that, described step S204 further comprises:
After described base station receives described channel request order, upstate to the Separate Dedicated Control Channel that disposes on the described base station is checked, if the Separate Dedicated Control Channel on the described base station is all unavailable, described relevant parameter is reported described base station controller, and termination; If existence is in the Separate Dedicated Control Channel of upstate then carry out described step S206.
4. method according to claim 3 is characterized in that, in described step S206, the Separate Dedicated Control Channel under the upstate is selected to be in described base station from described Separate Dedicated Control Channel group.
5. method according to claim 1 is characterized in that, in described step S206, further comprises:
Described base station is activated the described Separate Dedicated Control Channel of selecting.
6. method according to claim 5, it is characterized in that, activating under the case of successful, in described step S208, described travelling carriage is given in the described Separate Dedicated Control Channel assignment that described base station will be activated, activating under the unsuccessful situation, described base station reports described base station controller, and processing finishes.
7. method according to claim 1 is characterized in that, in described step S208, the described Separate Dedicated Control Channel of assignment message assignment is passed through in described base station, and carries described relevant parameter in described assignment message.
8. according to each described method in the claim 1 to 7, it is characterized in that described relevant parameter comprises access value at random, time delay and frame number.
9. method according to claim 8 is characterized in that, described base station obtains described access value at random from described channel request order, and obtains described time delay and described frame number according to described channel request order.
10. according to each described method in the claim 1 to 7, it is characterized in that described channel configuration information comprises: time slot, channelling mode, base station use power, travelling carriage to use power and channel to describe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101610175A CN101188863B (en) | 2007-12-19 | 2007-12-19 | Allocation method for independent private control channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101610175A CN101188863B (en) | 2007-12-19 | 2007-12-19 | Allocation method for independent private control channel |
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| CN101188863A true CN101188863A (en) | 2008-05-28 |
| CN101188863B CN101188863B (en) | 2012-06-06 |
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| CN2007101610175A Expired - Fee Related CN101188863B (en) | 2007-12-19 | 2007-12-19 | Allocation method for independent private control channel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256372A (en) * | 2010-05-17 | 2011-11-23 | 中兴通讯股份有限公司 | MTC terminal access method, system thereof and MTC terminal |
| CN102378376A (en) * | 2010-08-24 | 2012-03-14 | 华为技术有限公司 | Method, device and system for assigning resource immediately |
| CN101795464B (en) * | 2009-02-03 | 2013-02-27 | 中兴通讯股份有限公司 | Processing method of Abis interface signaling |
| WO2014048204A1 (en) * | 2012-09-28 | 2014-04-03 | 中兴通讯股份有限公司 | Control channel allocation method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2724523A1 (en) * | 1994-09-14 | 1996-03-15 | Alcatel Mobile Comm France | MULTILAYER CELLULAR RADIOCOMMUNICATION NETWORK WITH CELL WITHOUT FREQUENCY BEACON |
| CN1194570C (en) * | 2001-08-27 | 2005-03-23 | 华为技术有限公司 | Method for making base station have base station controller function in mobile communication system |
| CN1852602B (en) * | 2005-12-16 | 2010-05-05 | 华为技术有限公司 | Random access requestment method |
-
2007
- 2007-12-19 CN CN2007101610175A patent/CN101188863B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795464B (en) * | 2009-02-03 | 2013-02-27 | 中兴通讯股份有限公司 | Processing method of Abis interface signaling |
| CN102256372A (en) * | 2010-05-17 | 2011-11-23 | 中兴通讯股份有限公司 | MTC terminal access method, system thereof and MTC terminal |
| WO2011143987A1 (en) * | 2010-05-17 | 2011-11-24 | 中兴通讯股份有限公司 | Access method and system for machine-type communication terminal and machine-type communication terminal |
| US9144089B2 (en) | 2010-05-17 | 2015-09-22 | Zte Corporation | Access method and system for MTC device, and MTC device |
| CN102256372B (en) * | 2010-05-17 | 2016-06-22 | 中兴通讯股份有限公司 | MTC terminal cut-in method and system and MTC terminal |
| CN102378376A (en) * | 2010-08-24 | 2012-03-14 | 华为技术有限公司 | Method, device and system for assigning resource immediately |
| CN102378376B (en) * | 2010-08-24 | 2014-09-03 | 华为技术有限公司 | Method, device and system for assigning resource immediately |
| US9049734B2 (en) | 2010-08-24 | 2015-06-02 | Huawei Technologies Co., Ltd. | Method, apparatus and system for resource immediate assignment |
| WO2014048204A1 (en) * | 2012-09-28 | 2014-04-03 | 中兴通讯股份有限公司 | Control channel allocation method and device |
| RU2623097C2 (en) * | 2012-09-28 | 2017-06-22 | ЗэтТиИ Корпорейшн | Method and device for allocating control channel |
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| Publication number | Publication date |
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| CN101188863B (en) | 2012-06-06 |
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