CN101516124A - Admission control method and device for TD-SCDMA system - Google Patents
Admission control method and device for TD-SCDMA system Download PDFInfo
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- CN101516124A CN101516124A CNA2008100579165A CN200810057916A CN101516124A CN 101516124 A CN101516124 A CN 101516124A CN A2008100579165 A CNA2008100579165 A CN A2008100579165A CN 200810057916 A CN200810057916 A CN 200810057916A CN 101516124 A CN101516124 A CN 101516124A
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Abstract
The invention discloses an admission control method for a TD-SCDMA system. The method is applied to Node B of the TD-SCDMA system based on a distributed network, and comprises the following steps: judging whether uplink and downlink loads of a distributed unit of a cell allow to access new service; if the new service is allowed to be accessed, controlling the distributed unit to perform a normal random access process; and if the new service is not allowed to be accessed, controlling the distributed unit to block the normal random access process. Correspondingly, the invention also provides an admission control device for the TD-SCDMA system. Therefore, the method and the device adopt the Node B to perform auxiliary admission control so as to improve the reliability of the TD-SCDMA system.
Description
Technical field
The present invention relates to wireless communication technology, relate in particular to the acceptance controlling method and the device of a kind of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA) system based on distributed networking.
Background technology
The maximum number of users of service simultaneously both had been subject to available code word and also had been subject to the disturbed condition that system is subjected in the TD-SCDMA system, so when the user produces calling and handover, network need be admitted control, after confirming whether have resource allocation to give this user and distributing to the new resource of this user, whether can produce expendable influence to stability of network and the QoS that has connected (Quality of Service, service quality).Conventional admittance control module is positioned at RNC (Radio Network Controller, radio network controller) in, RNC has collected the cell load information of a lot of aspects from the NodeB base station, admit control module load to be carried out in up-downgoing respectively and estimate whether the carrying of decision request allows to be access in the sub-district based on these information.From the angle of user experience, block initial the access than allowing conversation loss more can allow the user accept, be when system loading is higher so admit the elementary tactics of control, by refusing the new telex network that has existed in the protective plot of calling out.
The admittance control module work good premise that is positioned at RNC is, RNC accurately and has timely collected the performance index of various reflections sub-district uplink and downlink load and has made rational judgement, and this requirement always can be finished under the macro base station networking mode of general TD-SCDMA system.But under the distributed group net mode of TD-SCDMA system, the task that RNC accurately and timely collects various reflections sub-district uplink and downlink load parameter will become challenge, reason is that each parameter of reflection sub-district uplink and downlink load under the distributed networking environment need reflect the load condition on each distributed points, cause each parameter all will expand to a parameter vector relevant with distribution topology, RNC utilizes existing measurement interface to obtain complete parameter vector from NodeB.The topology information that distributes with respect to antenna in cell when the while is inserted owing to RNC can not obtain the user easily also can influence the control of RNC to inserting.
In summary, have admittance control technology now, on reality is used, obviously have inconvenience and defective, so be necessary to be improved based on the TD-SCDMA system of distributed networking.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide the acceptance controlling method and the device of a kind of TD-SCDMA system, it can be under the situation of distributed networking, be assisted by NodeB and admit control to improve the reliability of TD-SCDMA system.
To achieve these goals, the invention provides the acceptance controlling method of a kind of TD-SCDMA system, described method is applied among the NodeB based on the TD-SCDMA system of distributed networking, and the method comprising the steps of has:
A, judge whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business, if allow to insert then execution in step B, otherwise execution in step C;
B, the described distributed unit of control are carried out normal random access process;
C, the described distributed unit of control stop normal random access process.
According to acceptance controlling method of the present invention, by the slot interfering signal of time code domain power of this distributed unit or the access control algorithm of received total wideband power, judge whether the uplink load of this distributed unit allows to insert new business in the described steps A; And/or
Pass through the access control algorithm of the transmitted power of this distributed unit in the described steps A, judge whether the downlink load of this distributed unit allows to insert new business.
According to acceptance controlling method of the present invention, do not respond the access request of uplink pilot time slot or do not issue physical access channel by controlling this distributed unit among the described step C, stop the access of new business on described distributed unit.
According to acceptance controlling method of the present invention, described new business comprises voice service or data service.
According to acceptance controlling method of the present invention, the TD-SCDMA system of described distributed networking adopts the TD-SCDMA system of Base Band Unit, RF remote unit and spaced antenna, described Base Band Unit and some RF remote units constitute a NodeB, and described acceptance controlling method is applied to respectively in each RF remote unit of described NodeB.
According to acceptance controlling method of the present invention, described distributed unit is a passage in this RF remote unit.
The present invention also provides the admission control device of a kind of TD-SCDMA system, and described device is applied among the NodeB based on the TD-SCDMA system of distributed networking, and this device includes:
Distributed unit load judge module is used to judge whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business;
The access control module, be used to control the random access procedure of this distributed unit, judge this distributed unit when described distributed unit load judge module and allow to insert new business, then control described distributed unit and carry out normal random access process by this access control module, judge this distributed unit when described distributed unit load judge module and do not allow to insert new business, then control described distributed unit and stop normal random access process by this access control module.
According to admission control device of the present invention, described distributed unit load judge module judges by the slot interfering signal of time code domain power of this distributed unit or the access control algorithm of received total wideband power whether the uplink load of described distributed unit allows to insert new business; And/or
Described distributed unit load judge module judges by the access control algorithm of the transmitted power of this distributed unit whether the downlink load of this distributed unit allows to insert new business.
According to admission control device of the present invention, described access control module does not respond the access request of uplink pilot time slot or does not issue physical access channel by controlling this distributed unit, stops the access of new business on described distributed unit.
According to admission control device of the present invention, described new business comprises voice service or data service.
According to admission control device of the present invention, the TD-SCDMA system of described distributed networking adopts the TD-SCDMA system of Base Band Unit, RF remote unit and spaced antenna, described Base Band Unit and some RF remote units constitute a NodeB, and described admission control device is arranged in each RF remote unit of described NodeB.
According to admission control device of the present invention, described distributed unit is a passage in this RF remote unit.
The present invention judges whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business by based on the NodeB in the TD-SCDMA system of distributed networking, carries out normal random access process if allow to insert then this distributed unit; Otherwise this distributed unit stops normal random access process.Whereby, the present invention can assist admittance control by NodeB under the situation of distributed networking, and NodeB admits control by the load judgement of each distributed unit to this distributed unit, thereby has improved the reliability of TD-SCDMA system.
Description of drawings
Fig. 1 is the structural representation of the admission control device of TD-SCDMA of the present invention system;
Fig. 2 is the position view based on admission control device in the TD-SCDMA system of distributed networking of the embodiment of the invention;
Fig. 3 is the acceptance controlling method flow chart of TD-SCDMA of the present invention system.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Basic thought of the present invention is: in the TD-SCDMA system based on distributed networking, by admission control device being set in the NodeB base station, whether the uplink and downlink load of judging a certain distributed unit of sub-district allows to insert new business, then carries out normal random access process if allow to insert; Otherwise, stop normal random access process, realize controlling with this by the auxiliary admittance of NodeB, thus the reliability of raising TD-SCDMA system.
Fig. 1 shows the structure of the admission control device of TD-SCDMA of the present invention system, and this admission control device 50 is applied among the NodeB based on the TD-SCDMA system of distributed networking, and this admission control device 50 includes at least:
Distributed unit load judge module 51 is used to judge whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business.Preferably, described distributed unit load judge module 51 is by time slot ISCP (the Interference Signal Code Power of this distributed unit, the interference signal code domain power) or RTWP (Received Total Wideband Power, received total wideband power) access control algorithm judges whether the uplink load of described distributed unit allows to insert new business.And/or described distributed unit load judge module 51 judges by the access control algorithm of the transmitted power of this distributed unit whether the downlink load of this distributed unit allows to insert new business.Wherein, the new business that described requirement inserts can be voice service, also can be data service.
Fig. 2 is the position view based on admission control device in the TD-SCDMA system of distributed networking of the embodiment of the invention, the TD-SCDMA system of described distributed networking adopts Base Band Unit (BaseBand Unit, BBU) 10, RF remote unit (Radio Remote Unit, RRU) 20 and the TD-SCDMA system of spaced antenna 30, be applicable to indoorly, also be applicable to outdoor.Described Base Band Unit 10 and some RF remote units 20 just constitute the NodeB 100 on the ordinary meaning, and each RF remote unit 20 is connected with some spaced antennas 30 again respectively.Admission control device 50 shown in Figure 1 is arranged in each RF remote unit 20 of described NodeB 100.Described distributed unit then generally is to be a passage in the RF remote unit 20.
In the TD-SCDMA system based on distributed networking of the present invention, RNC (Radio NetworkController, radio network controller) still can be provided with traditional admittance control module, again admission control device 50 of the present invention is arranged among the NodeB 100, more particularly be arranged in each RF remote unit 20 of NodeB 100, realize assisting admittance control with this, thereby improve the reliability of TD-SCDMA system by NodeB 100.
Fig. 3 shows the acceptance controlling method flow process of TD-SCDMA of the present invention system, this method is applied among the NodeB 100 based on the TD-SCDMA system of distributed networking, it is realized by Fig. 1 or the admission control device 50 that is arranged among the NodeB 100 shown in Figure 2, comprises that specifically step has:
Step S301 judges whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business, if allow to insert then execution in step S302, otherwise execution in step S303.This step S301 preferably judges whether the uplink load of a certain distributed unit of sub-district allows to insert new business, can be by the time slot ISCP of this distributed unit or the access control algorithm of RTWP; Whether the downlink load of judging a certain distributed unit of sub-district allows to insert new business, can pass through the access control algorithm of the transmitted power of this distributed unit.Wherein, the new business of described requirement access can be voice service or data service.
In the preferred embodiments of the present invention shown in Figure 2, the TD-SCDMA system of described distributed networking adopts the TD-SCDMA system of Base Band Unit 10, RF remote unit 20 and spaced antenna 30, described Base Band Unit 10 and some RF remote units 20 constitute a NodeB 100, described acceptance controlling method is applied to respectively just realize complementary admittance control flow by the admission control device in the RF remote unit 20 50 in each RF remote unit 20 of described NodeB 100.Described distributed unit is a passage in this RF remote unit 20.
Step S302 controls described distributed unit and carries out normal random access process.
Step S303 controls described distributed unit and stops normal random access process.Preferably, no longer respond the access request of UpPTS or no longer issue FPACH by controlling this distributed unit among this step S303, stop the access of new business on described distributed unit.
Above-mentioned admittance controlled step S301～S303 carries out respectively each distributed unit in the sub-district.
In summary, the present invention passes through based on the NodeB in the TD-SCDMA system of distributed networking, whether the uplink and downlink load of judging a certain distributed unit of sub-district allows to insert new business, carries out normal random access process if allow to insert then this distributed unit; Otherwise this distributed unit stops normal random access process.Whereby, the present invention can assist admittance control by NodeB under the situation of distributed networking, and NodeB admits control by the load judgement of each distributed unit to this distributed unit, thereby has improved the reliability of TD-SCDMA system.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1, the acceptance controlling method of a kind of TD-SCDMA system is characterized in that, described method is applied among the NodeB based on the TD-SCDMA system of distributed networking, and the method comprising the steps of has:
A, judge whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business, if allow to insert then execution in step B, otherwise execution in step C;
B, the described distributed unit of control are carried out normal random access process;
C, the described distributed unit of control stop normal random access process.
2, acceptance controlling method according to claim 1, it is characterized in that, by the slot interfering signal of time code domain power of this distributed unit or the access control algorithm of received total wideband power, judge whether the uplink load of this distributed unit allows to insert new business in the described steps A; And/or
Pass through the access control algorithm of the transmitted power of this distributed unit in the described steps A, judge whether the downlink load of this distributed unit allows to insert new business.
3, acceptance controlling method according to claim 1, it is characterized in that, do not respond the access request of uplink pilot time slot or do not issue physical access channel by controlling this distributed unit among the described step C, stop the access of new business on described distributed unit.
4, acceptance controlling method according to claim 1 is characterized in that, described new business comprises voice service or data service.
5, according to each described acceptance controlling method of claim 1～4, it is characterized in that, the TD-SCDMA system of described distributed networking adopts the TD-SCDMA system of Base Band Unit, RF remote unit and spaced antenna, described Base Band Unit and some RF remote units constitute a NodeB, and described acceptance controlling method is applied to respectively in each RF remote unit of described NodeB.
6, acceptance controlling method according to claim 5 is characterized in that, described distributed unit is a passage in this RF remote unit.
7, the admission control device of a kind of TD-SCDMA system is characterized in that, described device is applied among the NodeB based on the TD-SCDMA system of distributed networking, and this device includes:
Distributed unit load judge module is used to judge whether the uplink and downlink load of a certain distributed unit of sub-district allows to insert new business;
The access control module, be used to control the random access procedure of this distributed unit, judge this distributed unit when described distributed unit load judge module and allow to insert new business, then control described distributed unit and carry out normal random access process by this access control module, judge this distributed unit when described distributed unit load judge module and do not allow to insert new business, then control described distributed unit and stop normal random access process by this access control module.
8, admission control device according to claim 7, it is characterized in that, described distributed unit load judge module judges by the slot interfering signal of time code domain power of this distributed unit or the access control algorithm of received total wideband power whether the uplink load of described distributed unit allows to insert new business; And/or
Described distributed unit load judge module judges by the access control algorithm of the transmitted power of this distributed unit whether the downlink load of this distributed unit allows to insert new business.
9, admission control device according to claim 7, it is characterized in that, described access control module does not respond the access request of uplink pilot time slot or does not issue physical access channel by controlling this distributed unit, stops the access of new business on described distributed unit.
10, admission control device according to claim 7 is characterized in that, described new business comprises voice service or data service.
11, according to each described admission control device of claim 7～10, it is characterized in that, the TD-SCDMA system of described distributed networking adopts the TD-SCDMA system of Base Band Unit, RF remote unit and spaced antenna, described Base Band Unit and some RF remote units constitute a NodeB, and described admission control device is arranged in each RF remote unit of described NodeB.
12, admission control device according to claim 11 is characterized in that, described distributed unit is a passage in this RF remote unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100579165A CN101516124B (en) | 2008-02-20 | 2008-02-20 | Admission control method and device for TD-SCDMA system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100579165A CN101516124B (en) | 2008-02-20 | 2008-02-20 | Admission control method and device for TD-SCDMA system |
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| CN101516124A true CN101516124A (en) | 2009-08-26 |
| CN101516124B CN101516124B (en) | 2011-10-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921981A (en) * | 2015-12-28 | 2017-07-04 | 中兴通讯股份有限公司 | A kind of method for managing resource, the apparatus and system of indoor distributed antenna system |
| CN107852668A (en) * | 2015-08-14 | 2018-03-27 | 华为技术有限公司 | Access the method, apparatus and equipment of multiaerial system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5886988A (en) * | 1996-10-23 | 1999-03-23 | Arraycomm, Inc. | Channel assignment and call admission control for spatial division multiple access communication systems |
| CN1182673C (en) * | 2002-12-24 | 2004-12-29 | 大唐移动通信设备有限公司 | Reception control method in code division multiple access mobile communication system |
| CN100463566C (en) * | 2002-12-31 | 2009-02-18 | 中兴通讯股份有限公司 | Fast calling admitting control method of mobile communication system uplink mixed service |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107852668A (en) * | 2015-08-14 | 2018-03-27 | 华为技术有限公司 | Access the method, apparatus and equipment of multiaerial system |
| CN107852668B (en) * | 2015-08-14 | 2020-10-09 | 诸暨市尚诺五金经营部 | Method, device and equipment for accessing multi-antenna system |
| CN106921981A (en) * | 2015-12-28 | 2017-07-04 | 中兴通讯股份有限公司 | A kind of method for managing resource, the apparatus and system of indoor distributed antenna system |
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| CN101516124B (en) | 2011-10-26 |
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