CN1146165C - Method for distributing channels according to load of base station - Google Patents
Method for distributing channels according to load of base station Download PDFInfo
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- CN1146165C CN1146165C CNB011262362A CN01126236A CN1146165C CN 1146165 C CN1146165 C CN 1146165C CN B011262362 A CNB011262362 A CN B011262362A CN 01126236 A CN01126236 A CN 01126236A CN 1146165 C CN1146165 C CN 1146165C
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- 238000005259 measurement Methods 0.000 claims description 13
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Abstract
The present invention relates to novel method for distributing channels based on the load of a base station. The present invention is characterized in that the present invention comprises the following steps: a. a CRNC (Controlling Radio Network Controller) measures each base station after finishing the establishment of the base station, and the base station reports measuring results to the CRNC; b. an SRNC (Serving Radio Network Controller) sends a load measuring control command to the CRNC, and the measuring control command designates the base station required for measuring; the CRNC reports the loading condition of the corresponding base station according to the measuring control requirement; c. the SRNC judges the loading condition of the base station during the establishment of RRC connection and determines channel assignment according to accessed loading condition of the base station; the connection is arranged on a public channel under the condition of heavier load, and otherwise, the connection is arranged on a special channel; d. lastly, channels are distributed according to the loading condition of a target district, and channels with high capacity are distributed when the district has light load; on the contrary, channels with small capacity are distributed. The present invention has the advantages of improving the utilization rate of the channels and increasing the capacity of systems.
Description
Technical field
The present invention relates to communication system, especially the method in Wideband Code Division Multiple Access (WCDMA) (WCDMA) cell mobile communication systems based on base station load allocating channel.
Background technology
In Wideband Code Division Multiple Access (WCDMA) (WCDMA) cell mobile communication systems, system need support following type of service: session (CONVERSATIONAL), stream (STREAMING), mutual (INTERACTIVE), background (BACKGROUND), and the various combination between these business.For some business, it can be assigned on the common signal channel, also can be assigned on the dedicated channel; For the business of variable bit rate control, when the channel original allocation, need to determine professional initial rate.In addition, before the foundation business, need set up signaling and connect, the signaling connection can be based upon on the dedicated channel or on the common signal channel.
In the WCDMA system, Radio Resource control mainly comprises: travelling carriage is connected (to call the RRC connection in the following text) management process, radio bearer control, RRC and connects mobile process, RRC measuring process and RRC conventional process with base station controller.Wherein, RRC connection management process, radio bearer control are connected distribution and the allocation problem that mobile process all relates to channel with RRC, and the quality of channel allocation and collocation strategy will have influence on the performance of WCDMA system to a great extent.
One time communication process generally includes following step:
RRC connects the process of setting up: assignment signalling carrying, configurating channel parameter.
RAB assigns process: when business is set up in request, and usually need be according to each layer parameter of Quality of Service allocated channel; Simultaneously, in communication process, may produce a plurality of RABs (RAB) appointment process.
Soft/direct-cut operation: as in conversation procedure, when travelling carriage (UE) is crossed a base station, will to produce this process.
The dynamic channel layoutprocedure: in order to adapt to the service source rate variations, originally distributed to this professional channel and may become no longer suitable, this is to be necessary to redistribute channel resource according to current service traffics to business, carries out channel and reshuffles.The RAB dispose procedure.When conversation is finished, initiate this process.
The RRC dispose procedure: release signaling connects.
Connect the process of setting up for RRC, it still is on the dedicated channel that common reason according to foundation is determined to be assigned on the common signal channel.For example, for reasons such as caller/called session, stream business or emergence call services, just it is assigned on the dedicated channel; Just be assigned on the common signal channel for other reason.
Set up process for business, usually Packet Service delay requirement is higher, that real-time is higher or speed is higher is assigned on the dedicated channel, with other traffic assignments to common signal channel.For the speed controllable traffic in CS territory, need to determine in advance its initial rate, and in transmission course, dynamically adjust professional speed.
Connect in the process of setting up, RAB appointment process, the soft/processes such as direct-cut operation at RRC, service wireless network controller (SRNC) all can be to control radio network controller (CRNC) application base station resource access.If base station resource request failure, then this process will be failed.
Generally, when CRNC and SRNC are same RNC (as Fig. 1), SRNC initiates resource request according to request and the corresponding reason for claim of UE to target BS.If base station resource request failure can be applied for resource to other base stations by the method for directed retry so.If other base station resource is also applied for failure, this process has just been failed so.
Another kind of situation is when SRNC separates with CRNC, if set up the signaling connection, and a part of base station resource is by CRNC control (as soft changing state) (as Fig. 2), if initiate RAB and assign process this moment, SRNC is in the process of the target base station requests resource of CRNC, if load too high in the target BS can cause the access failure.
Summary of the invention
The objective of the invention is in order to overcome existing problem based on base station load and QoS (QoS), and proposed a kind of when distribution and configurating channel, the load state of reference target base station, to improve a kind of method based on base station load allocating channel of channel allocation probability of successful, this method can improve the utilance of channel and increase the capacity of system.
In order to realize purpose of the present invention, and the technical scheme that invention is taked is: a kind of method based on base station load allocating channel, be characterized in, and may further comprise the steps:
A kind of method based on base station load allocating channel is characterized in, may further comprise the steps:
A, after the base station is set up, the control radio network controller initiates each base station load is measured, the measurement of the base station being initiated according to the control radio network controller starts request, the base station is reported to the control radio network controller to measurement result;
B, service wireless network controller send the load measure control command to the control radio network controller, indicate the base station that to measure in the measurement control order, the control radio network controller reports the loading condition of corresponding base station according to the requirement of measuring control;
C, when travelling carriage request and base station controller connect, service wireless network controller judgement base station loading condition, and according to the load state decision channel allocation of access base station:, so this connection is established on the common signal channel if load is heavy; Otherwise, it is established on the dedicated channel;
D, last loading condition allocated channel according to target BS, when the base station load is light, the channel that partition capacity is high, the little channel of partition capacity when load is heavy.
Above-mentioned a kind of method based on base station load allocating channel, wherein, it can be periodically to report that the loading condition described in the step a reports mode, also can reporting events, concrete mode is controlled by service wireless network controller.
Above-mentioned a kind of method based on base station load allocating channel, wherein, the described loading condition of step b can be determined by up acknowledge(ment) signal intensity measurements, also can be determined by down transmitting power.
Above-mentioned a kind of method based on base station load allocating channel, wherein, the described loading condition of step b can be divided into light, general and heavy Three Estate for uplink and downlink; Described load is meant that gently the upstream or downstream load factor is lower than the situation of predetermined Lower Threshold; Described load is meant that heavily the upstream or downstream load factor surpasses the state of predetermined Upper threshold; Described load is meant that generally the upstream or downstream load factor is between predetermined Upper threshold and Lower Threshold; Described upper and lower thresholding is by the parameter setting of system.
Above-mentioned a kind of method based on base station load allocating channel wherein, according to step c, is set up Packet Service if desired, and then service wireless network controller is judged the loading condition of all base stations that link to each other with current mobile station UE; When court verdict was the load weight, then service wireless network controller was established to Packet Service on the common signal channel; Otherwise, be established on the dedicated channel.
Above-mentioned a kind of method based on base station load allocating channel, wherein, according to step c, if foundation is speech business, then service wireless network controller is judged all base stations that link to each other with current mobile station UE; When court verdict was the load weight, then service wireless network controller was pressed the low side speed transmission speech business in the 3GPP communication protocol speech pattern; Otherwise, transmit speech business with the high-end speed in this protocol voice pattern.
Above-mentioned a kind of method based on base station load allocating channel, wherein, according to step c, when the dynamic channel configuration takes place when, service wireless network controller is judged all base stations that link to each other with current mobile station, if it is heavy that court verdict is load, service wireless network controller disposes by dynamic channel so, current business configuration to common signal channel; Otherwise be configured on the dedicated channel.
Above-mentioned a kind of method based on base station load allocating channel, wherein, service wireless network controller judgement base station loading condition regular as follows: when the base station number of travelling carriage connection has only, get final product according to the load judgment of this base station; The base station number that connects when travelling carriage has when a plurality of, judges the load of a plurality of base stations that link to each other with travelling carriage, if there is a base station load heavy, so just thinks all base station loads weights, otherwise, think that all base station loads are light.
Because the present invention has adopted above technical scheme, when channel configuration with reference to the loading condition of target BS, when the target BS load is heavier, by changing the strategy of channel allocation, can make the load effect minimum of channel allocation for target BS, when to base station application resource, improved the application probability of successful; Simultaneously, can improve communication quality, between base station load and communication quality, seek optimum balance according to base station load state configurating channel parameter.Like this, both can reduce requirement, can suitably increase base station resource request probability of successful again the base station load.
Description of drawings
Performance characteristic of the present invention is further described by following embodiment and accompanying drawing thereof.
Fig. 1 is the network diagram that prior art SRNC and CRNC overlap.
Fig. 2 is the network diagram that prior art SRNC separates with CRNC.
Fig. 3 is the flow chart of allocated channel of the present invention.
Fig. 4 is a schematic diagram of measuring control under two adjacent RNC edge situations of the present invention.
Embodiment
A kind of method of the present invention based on base station load allocating channel, when channel configuration with reference to the loading condition of target BS, when the target BS load is heavier, by changing the strategy of channel allocation, can make the load effect minimum of channel allocation for target BS, when to base station application resource, improved the application probability of successful.
It may further comprise the steps:
A, when the base station set up finish after, control radio network controller CRNC initiates the measurement to each base station, the measurement of the base station being initiated according to the control radio network controller starts request, the base station is reported to control radio network controller CRNC to measurement result; It can be periodically to report that described loading condition reports mode, also can reporting events, and concrete mode is controlled by service wireless network controller;
B, service wireless network controller SRNC send the load measure control command to control radio network controller CRNC, indicate the base station that to measure in the measurement control order, control radio network controller CRNC reports the loading condition of corresponding base station according to the requirement of measuring control; Described loading condition can be determined by up acknowledge(ment) signal intensity measurements, also can be determined by down transmitting power.Can be divided into light, general and heavy Three Estate for uplink and downlink; Described load is meant that gently the upstream or downstream load factor is lower than the situation of predetermined Lower Threshold; Described load is meant that heavily the upstream or downstream load factor surpasses the state of predetermined Upper threshold; Described load is meant that generally the upstream or downstream load factor is between predetermined Upper threshold and Lower Threshold; Described upper and lower thresholding is by the parameter setting of system;
C, when RRC connect to set up request, service wireless network controller SRNC judgement base station loading condition, and according to the load state decision channel allocation of access base station:, so this connection is established on the common signal channel if load is heavier; Otherwise, it is established on the dedicated channel;
D, last loading condition allocated channel according to target BS, when the base station load is light, the channel that partition capacity is high, the little channel of partition capacity when load is heavy.
See also Fig. 3, Fig. 3 is the flow chart of the concrete allocated channel of the present invention, and the step of allocated channel of the present invention is:
The first step: after base station foundation was finished, load measure was carried out in CRNC control base station, and to CRNC reporting base station loading condition, CRNC is saved in the load information of its all base stations of controlling in the load information table of base station according to the content of measuring control in the base station.
Second step: at the edge (as shown in Figure 4) of RNC1 and RNC2, RNC1 controls the base station (as base station 21,22,23,24) that belongs to RNC2 selectively, by measuring control, makes RNC2 by certain mode reporting base station load; Same RNC2 also can control the base station (as base station 11,12,13,14) of RNC1, makes its periodically reporting base station load.
The 3rd step: when RRC connected the foundation request, SRNC obtained RRC and connects the target BS sign ID that sets up, and according to the sign ID of base station, inquires about the load information of this base station in this RNC load information table.If load is heavier, controls the RRC connection so and be established on the common signal channel; Otherwise, handle according to normal conditions.
The 4th step: after having finished RRC connection foundation request, if the RAB assignment request takes place, at first judge the loading condition of base station, current connection place, if there is multi wireless links (soft handover), then judge the loading condition of the pairing base station of every wireless links respectively, as long as there is a base station load very heavy, court verdict is that load is very heavy so; Otherwise, think that this link load is lighter.If have only a wireless links, obtain the load state of this link respective base station so, if load is very heavy, just think that load is very heavy, otherwise, just think that load is light.
The 5th step: very heavy if court verdict is load, and the parameter of carrying in the RAB assignment request is designated as Packet Service, then directly with traffic assignments to common signal channel; Otherwise, walk normal channel allocation flow process.
The 6th step: very heavy if court verdict is load, and the parameter of carrying in the RAB assignment request is designated as the controlled rate business, and then initial rate is set to minimum speed limit; Otherwise, walk normal channel allocation flow process.
The 7th step: if produce the dynamic channel configuration, the result then carries out the load judgement for public equally to the reshuffling of dedicated channel, and specifically judging process is referring to step 4.If it is very heavy that court verdict is load, then refuse this handoff procedure.Otherwise, walk normal dynamic channel layoutprocedure.
The 8th step: if produce the dynamic channel configuration, the result is special-purpose switching to common signal channel, does not then carry out the load judgement, directly walks normal dynamic channel layoutprocedure.
Claims (8)
1, a kind of method based on base station load allocating channel is characterized in that, may further comprise the steps:
A, after the base station is set up, the control radio network controller initiates each base station load is measured, the measurement of the base station being initiated according to the control radio network controller starts request, the base station is reported to the control radio network controller to measurement result;
B, service wireless network controller send the load measure control command to the control radio network controller, indicate the base station that to measure in the measurement control order, the control radio network controller reports the loading condition of corresponding base station according to the requirement of measuring control;
C, when travelling carriage request and base station controller connect, service wireless network controller judgement base station loading condition, and according to the load state decision channel allocation of access base station:, so this connection is established on the common signal channel if load is heavy; Otherwise, it is established on the dedicated channel;
D, last loading condition allocated channel according to target BS, when the base station load is light, the channel that partition capacity is high, the little channel of partition capacity when load is heavy.
2, a kind of method based on base station load allocating channel according to claim 1 is characterized in that, it can be periodically to report that the loading condition described in the step a reports mode, also can reporting events, and concrete mode is controlled by service wireless network controller.
3, a kind of method based on base station load allocating channel according to claim 1 is characterized in that, the described loading condition of step b can be determined by up acknowledge(ment) signal intensity measurements, also can be determined by down transmitting power.
4, a kind of method based on base station load allocating channel according to claim 1 is characterized in that, the described loading condition of step b can be divided into light, general and heavy Three Estate for uplink and downlink; Described load is meant that gently the upstream or downstream load factor is lower than the situation of predetermined Lower Threshold; Described load is meant that heavily the upstream or downstream load factor surpasses the state of predetermined Upper threshold; Described load is meant that generally the upstream or downstream load factor is between predetermined Upper threshold and Lower Threshold; Described upper and lower thresholding is by the parameter setting of system.
5, a kind of method based on base station load allocating channel according to claim 1 is characterized in that, according to step c, sets up Packet Service if desired, and then service wireless network controller is judged the loading condition of all base stations that link to each other with current mobile station UE; When court verdict was the load weight, then service wireless network controller was established to Packet Service on the common signal channel; Otherwise, be established on the dedicated channel.
6, a kind of method based on base station load allocating channel according to claim 1 is characterized in that, according to step c, if foundation is speech business, then service wireless network controller is judged all base stations that link to each other with current mobile station UE; When court verdict was the load weight, then service wireless network controller was pressed the low side speed transmission speech business in the 3GPP communication protocol speech pattern; Otherwise, transmit speech business with the high-end speed in this protocol voice pattern.
7, a kind of method according to claim 1 based on base station load allocating channel, it is characterized in that, according to step c, when the dynamic channel configuration takes place when, service wireless network controller is judged all base stations that link to each other with current mobile station, if it is heavy that court verdict is load, service wireless network controller disposes by dynamic channel so, current business configuration to common signal channel; Otherwise be configured on the dedicated channel.
8, a kind of method according to claim 1 based on base station load allocating channel, it is characterized in that, service wireless network controller judgement base station loading condition regular as follows: when the base station number of travelling carriage connection has only one, get final product according to the load judgment of this base station; The base station number that connects when travelling carriage has when a plurality of, judges the load of a plurality of base stations that link to each other with travelling carriage, if there is a base station load heavy, so just thinks all base station loads weights, otherwise, think that all base station loads are light.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011262362A CN1146165C (en) | 2001-07-18 | 2001-07-18 | Method for distributing channels according to load of base station |
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| CNB011262362A CN1146165C (en) | 2001-07-18 | 2001-07-18 | Method for distributing channels according to load of base station |
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| CN1146165C true CN1146165C (en) | 2004-04-14 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005104576A1 (en) * | 2004-04-22 | 2005-11-03 | Utstarcom Telecom Co., Ltd. | A distributed wireless system for controlling the resource centrally |
| CN100426906C (en) * | 2004-06-12 | 2008-10-15 | 中兴通讯股份有限公司 | Equivalent channel capacity mode building method in mobile telecommunicating system |
| CN100356730C (en) * | 2004-09-06 | 2007-12-19 | 华为技术有限公司 | Transmission for realizing multi-media broadcast/group broadcast service dispatch |
| CN1819692B (en) * | 2005-02-07 | 2010-11-10 | 北京三星通信技术研究有限公司 | High-speed down data access enhancing method |
| CN102647748B (en) * | 2009-01-15 | 2015-05-27 | 华为技术有限公司 | Load measuring method and evolution base station |
| CN102918890B (en) * | 2011-05-30 | 2016-06-22 | 华为技术有限公司 | Load control method in cordless communication network and device |
| CN103455458A (en) * | 2012-05-28 | 2013-12-18 | 鸿富锦精密工业（深圳）有限公司 | Method and system for controlling bandwidth of peripheral component interconnect express (PCI_E) bus under the environment of multiple graphic processing units (GPUs) |
| CN103634234B (en) * | 2012-08-27 | 2016-06-29 | 鸿富锦精密工业（深圳）有限公司 | The processor resource managing and control system of customer terminal equipment and method |
| KR101629950B1 (en) * | 2014-08-01 | 2016-06-13 | 에스케이텔레콤 주식회사 | Base station management apparatus and control method thereof |
| CN108668364B (en) * | 2017-03-29 | 2019-09-17 | 大唐移动通信设备有限公司 | A kind of method and device for exempting from scheduled transmission |
| CN109703008B (en) * | 2019-01-03 | 2021-08-27 | 山东中颖智超数据科技有限公司 | Intelligent additive manufacturing method and device based on big data artificial intelligence analysis |
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