CN106470448A - A kind of signaling method of reseptance of base station and device - Google Patents
A kind of signaling method of reseptance of base station and device Download PDFInfo
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- CN106470448A CN106470448A CN201510500688.4A CN201510500688A CN106470448A CN 106470448 A CN106470448 A CN 106470448A CN 201510500688 A CN201510500688 A CN 201510500688A CN 106470448 A CN106470448 A CN 106470448A
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- base station
- signaling
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- reseptance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
Abstract
The invention discloses a kind of signaling method of reseptance of base station, comprise the following steps:A, the receiving window size of the reliable communication process of described base station according to the signaling traffic size between base station and controller, is set;, when receiving signaling, the CPU according to described base station processes the ability of signaling for B, described base station, controls the described expansion receiving window.The invention also discloses a kind of signaling reception device of base station.The ability that the signaling receiving ability of base station processes signaling with CPU is associated by the present invention, and the ability that CPU processes signaling inhibits signaling receiving ability, thus inhibiting the transmitting capacity in source, the cpu load of the control base station that can smooth;And, increasing with cpu load, the flow that source sends signaling progressively declines it is not necessary to by the way of using abandoning signaling, for system, more steady more lossless.
Description
Technical field
The present invention relates to communication network or technical field of the computer network, the signaling method of reseptance of more particularly to a kind of base station and device.
Background technology
With the development of communication technology, the range of mobile radio system is more and more wider, the owning amount also more and more higher of mobile phone.Mobile radio system is made up of controller and base station system.The multiple base station system of one controller management, and be connected with core net, complete the management to base station system logical resource.Base station system completes the process of link layer in mobile radio system and physical layer, and mobile phone accesses mobile radio networks by base station system.
Base station system is made up of baseband system and radio system, run is embedded real-time operating system, CPU needs to complete the work such as the internal resource management of international standard protocol process and correlation and controller between, the international standard that interface between base station system and controller, generally International Telecommunication Association are formulated, carries in the agreement of reliable communication, it is finite automaton state machine in form, description in what state, is received any message, and which type of this does and process.
With the growth of number of users and telephone traffic, and some festivals or holidays, peak period on and off duty, the scene such as match, the CPU impact to base station system is also increasing, and reasonably carrying out the control of base station system CPU has become an important problem.Traditional CPU control method, each process independent control, when CPU is close to thresholding, typically only carry out the process of top-level protocol process, mode is actively to carry out the discarding of signaling, thus reducing cpu load.
But, inventor finds when realizing the present invention, and traditional CPU control method comes with some shortcomings.Because each process is processed independently, do not reach the effect of Coupled motion, such as protocol processes process is in discarding signaling, but the protocol process of reliable communication is still ceaselessly receiving pending signaling;Secondly as control method is passive discarding although being not result in CPU overload, but the impression of certain customers is affected, and present randomness, the important signaling of possible part responsible consumer is similarly dropped, the smooth control of CPU can not be reached, source can not be suppressed.
Content of the invention
The technical problem to be solved in the present invention is to provide signaling method of reseptance and the device of a kind of base station, in order to solve the problems, such as prior art receive signaling when can not reach the smooth control of CPU, signaling source can not be suppressed.
For solving above-mentioned technical problem, the present invention provides a kind of signaling method of reseptance of base station, the method comprising the steps of:
A, the receiving window size of the reliable communication process of described base station according to the signaling traffic size between base station and controller, is set;
, when receiving signaling, the CPU according to described base station processes the ability of signaling for B, described base station, controls the described expansion receiving window.
Further, described step A specifically includes:According to the business scale between described base station and controller, initialize described receiving window size, reliable communication links are set up by interaction.
Further, after setting up reliable communication links, described controller gets initial Receive sequence number and the receiving window size of described base station, and the bag quantity that described controller once can continuously transmit not can exceed that described receiving window size.
Further, described step B is specially:After described base station has processed the signaling that described controller sends, expand described reception window.
Further, described step B specifically includes:
Receive the signaling that described controller sends;
When the sequence number that the signaling receiving carries is identical with base station expectation Receive sequence number, described signaling is processed, and base station expectation Receive sequence number is added 1, and maintain described reception window upper edge constant;
After completing signaling process, described reception window upper edge is expanded 1.
Further, described base station is based on sliding window control mechanism and receives signaling.
The present invention also provides a kind of signaling reception device of base station, and described device includes:
According to the signaling traffic size between base station and controller, the unit of the receiving window size of reliable communication process of described base station is set;
When receiving signaling, the CPU according to described base station processes the ability of signaling for described base station, controls the unit of the described expansion receiving window.
The present invention has the beneficial effect that:
The ability that the signaling receiving ability of base station processes signaling with CPU is associated by the present invention, and the ability that CPU processes signaling inhibits signaling receiving ability, thus inhibiting the transmitting capacity in source, the cpu load of the control base station that can smooth;And, increasing with cpu load, the flow that source sends signaling progressively declines it is not necessary to by the way of using abandoning signaling, for system, more steady more lossless.
Brief description
Fig. 1 is a kind of flow chart of the signaling method of reseptance of base station of the embodiment of the present invention;
Fig. 2 is a kind of block diagram of WCDMA system of the present embodiment;
Fig. 3 is a kind of agreement block diagram within WCDMA base station system of the present embodiment;
Fig. 4 is the schematic diagram of embodiment of the present invention sliding window control mechanism.
Specific embodiment
In order to solve the problems, such as prior art receive signaling when can not reach the smooth control of CPU, signaling source can not be suppressed, the invention provides a kind of signaling method of reseptance of base station and device, below in conjunction with accompanying drawing and embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
Embodiment 1
A kind of signaling method of reseptance of base station of the embodiment of the present invention as shown in figure 1, first, according to the signaling traffic size between base station and controller, arranges the receiving window size of the reliable communication process of described base station.Then, described base station, when receiving signaling, processes the ability of signaling according to the CPU of described base station, controls the described expansion receiving window;It is specially after described base station has processed the signaling that described controller sends, expands described reception window, reliable communication process will receive the expansion of window and the process of base station protocol process is associated.The present embodiment specifically includes following steps:
Step s101, according to the business scale between base station and controller, initializes receiving window size, sets up reliable communication links by interaction.In the present embodiment, after setting up reliable communication links, described controller gets initial Receive sequence number and the receiving window size of described base station, and the bag quantity that described controller once can continuously transmit not can exceed that described receiving window size.
Step s102, receives the signaling that described controller sends.In the present embodiment, described base station is based on sliding window control mechanism and receives signaling.
Step s103, when the sequence number that the signaling receiving carries is identical with base station expectation Receive sequence number, processes to described signaling, and base station expectation Receive sequence number is added 1, and maintains described reception window upper edge constant.
Step s104, after completing signaling process, described reception window upper edge is expanded 1.
The present embodiment is processed it is achieved that Inner link and source linkage co- controlling by way of linking by the reception window of reliable communication process and protocol processes process, and in realization, to existing system, simple modification can complete.The present embodiment processes the process of transmitting-receiving message and receiving window size according to reliable communication protocol, but from unlike usual reliable communication protocol, the message that received in-order sends to opposite end, and when being submitted to protocol process process, it is not as usual reliable communication protocol and expand reception window immediately, but remain unchanged, after protocol process has processed the signaling of opposite end transmission, receiving window size just expands.
Embodiment 2
A kind of signaling reception device of base station of the embodiment of the present invention includes two units, and one is according to the signaling traffic size between base station and controller, the unit of the receiving window size of reliable communication process of the described base station of setting;Another is described base station when receiving signaling, and the CPU according to described base station processes the ability of signaling, controls the unit of the described expansion receiving window.
Embodiment 3
The present embodiment is described in further detail to technical scheme with as a example WCDMA (Wideband Code Division Multiple Access, WCDMA) system:
A kind of block diagram of WCDMA system of the present embodiment is as shown in Figure 2, WCDMA system is by base station (NODE B), RNC (Radio Network Controller, radio network controller), CN (Core Net, core network) and UE (User Equipmen, mobile station) four part composition:
1. core network CN:The functional entity that the mobile station being pointed in its compass of competency is controlled, exchanges.Core network is a unified appellation, typically also include multiple functional entitys, as MSC (Mobile Switching Center, mobile switching centre), SGSN (Serving GPRS (General Packet Radio Service, general packet radio service skill) Support Node, Serving GPRS Support Node), HLR (Home Location Register, attaching position register) etc..
2. radio network controller (RNC):It is under the jurisdiction of RNS (Radio Network Subsystem, RNS), have and the control of Radio Resource and the functional entity of management are carried out to one or more NODE B, can be controlled by OMC (Operation and Maintenance Center, operation maintenance center).
3. base station NODE B:Wireless receiving and dispatching for a cell or multiple cell serves believes equipment.
4. mobile station UE:Including mobile device and UMTS (Universal Mobile Telecommunications System, UMTS) subscriber identification module, it is often referred to mobile phone.
A kind of agreement block diagram within WCDMA base station system of the present embodiment as shown in figure 3, in wireless network control face, respectively by following which floor constitute:
1.NBAP (NodeB Application Part, base station application part) agreement:The signaling completing standard agreement Iub interface is processed, and the standard agreement formulated by International Telecommunication Association such as sets up a wireless link it is proposed that logic district etc..
2. reliable communication protocol:ATM (Asynchronous Transfer Mode, asynchronous transfer mode) it is SSCOP (Service Specific Connection Oriented Protocol on medium, the specific connection oriented protocol of business) agreement, it is SCTP (Stream Control Transmission Protocol on IP medium, SCTP) agreement, it is also the standard agreement that International Telecommunication Association formulates, purpose is in order to the both sides communicating can not repeat, do not lose, sequentially signaling is submitted to other side;
3. link layer:It is PVC (Permanent Virtual Circuit, permanent virtual link) under ATM, be IP layer under IP;
4. physical layer:As E1/T1 or FE etc..
The purpose that reliable communication protocol exists mainly for solve the transmission network packet loss between controller and base station out of order the problems such as so that the signaling of transmission can not be lost, unduplicated sequentially submit other side to.The realization of its internal reliable communication is all based on sliding window control mechanism, as shown in Figure 4:
The both sides of communication, according to self-ability, initial window size, set up reliable communication links by interaction, the result of interaction is the initial Receive sequence number that sender obtains recipient, and receiving window size, in Fig. 4, the initial Receive sequence number of recipient is 0, and maximum Receive sequence number is w.
When sender sends:First bag carries the initial sequence number 0 of recipient, and the second bag carries sequence number 1, the like.The bag quantity that sender once can continuously transmit not can exceed that recipient's receiving window size w, that is, recipient's window size limits the transmitting capacity of sender.
When recipient receives:The sequence number and current expectation Receive sequence number that receive bag are compared, if equal, just will currently expect that Receive sequence number adds 1, window upper edge will be received simultaneously and also add 1, and the message receiving be submitted NBAP protocol process module and processes.
By sliding window control mechanism, ensure that signaling can not repeat, do not lost, sequentially submitted to other side.
In conventional CPU control method, reliable communication protocol and NBAP agreement are to be respectively controlled, such as when CPU reaches thresholding 90%, NBAP agreement selectively abandons to the signaling receiving, so control the rise further of cpu load, although this mode reduces load, simple and crude.The embodiment of the present invention, by the way of recipient's sliding window size and cpu load link, is cleverly suppressed to source, in WCDMA base station system, specific implementation process is as follows:
With underlying dielectric as ATM, reliable communication processing protocol illustrates for as a example SSCOP:
(1) according to the business scale between WCDMA base station and controller, the sscop process of WCDMA base station arranges suitable receiving window size, is 100, shows at most to receive 100 NBAP signalings that controller sends over simultaneously.
(2) process of expansion and NBAP protocol process that base station side SSCOP receives window is associated, specific mode:
Definition process according to SSCOP agreement receives and dispatches the process of message and receiving window size, but the expansion receiving window is different from SSCOP agreement, carries out after NBAP protocol processes, and concrete process example is as follows:
Assuming that the SSCOP of current base station receives window expectation Receive sequence number is 1, and window upper edge is 100, now receives the NBAP signaling of the serial number 1 that controller sends over:
Because it is identical with base station expectation Receive sequence number to receive the sequence number that signaling carries, therefore it is submitted to NBAP signaling to process, the sequence number that base station expectation receives adds 1 and is changed into 2, but it is different from standard SSCOP agreement, now do not expand window upper edge, window upper edge maintenance 100 is constant, and now SSCOP receiving window size in base station is 99.
NBAP protocol process normally processes signaling, after completing signaling process, the reception window upper edge of SSCOP is expanded 1, is 101, now, the receiving window size of SSCOP reverts to 100.
Due to needing, after NBAP protocol process has been processed, just to expand receiving window size, thus receiving ability is associated with CPU disposal ability, receiving window size inhibits the transmitting capacity of controller, thus it is suppressed that the signaling rate in source.
When base station CPU load progressively increases, the speed that base station expands reception window slows down, and the signal transmitting speed of restriction controller progressively declines, thus reaching a suitable balance, stepless and lossless achieves inside and the linkage and source between.Controller, when finding that signaling rate declines, also can carry out the control of root further, such as reduces the means such as cell coverage area.
Basis due to reliable communication protocol controls for sliding window, SSCOP and SCTP or TCP (Transmission Control Protocol, transmission control protocol), internal sliding window control mechanism is identical, the method all can be used under various scenes, and, receives, due to only have changed, the opportunity that window expands, the also very little of cost in realization, has obtained good application in actual wireless communication system.
The ability that the signaling receiving ability of base station processes signaling with CPU is associated by the present invention, and the ability that CPU processes signaling inhibits signaling receiving ability, thus inhibiting the transmitting capacity in source, the cpu load of the control base station that can smooth;And, increasing with cpu load, the flow that source sends signaling progressively declines it is not necessary to by the way of using abandoning signaling, for system, more steady more lossless.
Although being example purpose, have been disclosed for the preferred embodiments of the present invention, those skilled in the art will recognize that various improvement, increase and replacement are also possible, and therefore, the scope of the present invention should be not limited to above-described embodiment.
Claims (7)
1. a kind of signaling method of reseptance of base station is it is characterised in that the method comprising the steps of:
A, according to the signaling traffic size between base station and controller, the reliable communication arranging described base station is entered
The receiving window size of journey;
, when receiving signaling, the CPU according to described base station processes the ability of signaling, controls for B, described base station
The described expansion receiving window.
2. the signaling method of reseptance of base station as claimed in claim 1 is it is characterised in that described step A
Specifically include:According to the business scale between described base station and controller, initialize described receiving window size,
Reliable communication links are set up by interaction.
3. the signaling method of reseptance of base station as claimed in claim 2 is it is characterised in that setting up reliability
After communication link, described controller gets initial Receive sequence number and the receiving window size of described base station, institute
State the bag quantity that controller once can continuously transmit and not can exceed that described receiving window size.
4. the signaling method of reseptance of base station as claimed in claim 3 is it is characterised in that described step B
It is specially:After described base station has processed the signaling that described controller sends, expand described reception window.
5. the signaling method of reseptance of base station as claimed in claim 4 is it is characterised in that described step B
Specifically include:
Receive the signaling that described controller sends;
When the sequence number that the signaling receiving carries is identical with base station expectation Receive sequence number, described signaling is carried out
Process, and base station expectation Receive sequence number is added 1, and maintain described reception window upper edge constant;
After completing signaling process, described reception window upper edge is expanded 1.
6. the base station as described in any one of claim 1 to 5 signaling method of reseptance it is characterised in that
Described base station is based on sliding window control mechanism and receives signaling.
7. a kind of signaling reception device of base station is it is characterised in that described device includes:
According to the signaling traffic size between base station and controller, the reliable communication process of described base station is set
The unit of receiving window size;
When receiving signaling, the CPU according to described base station processes the ability of signaling, controls institute for described base station
State the unit of the expansion receiving window.
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CN201510500688.4A CN106470448B (en) | 2015-08-14 | 2015-08-14 | Method and device for receiving signaling of base station |
PCT/CN2016/094390 WO2017028727A1 (en) | 2015-08-14 | 2016-08-10 | Signalling receiving method and device for base station |
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CN201510500688.4A CN106470448B (en) | 2015-08-14 | 2015-08-14 | Method and device for receiving signaling of base station |
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CN104145459A (en) * | 2012-02-17 | 2014-11-12 | 苹果公司 | Reducing interarrival delays in network traffic |
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- 2015-08-14 CN CN201510500688.4A patent/CN106470448B/en active Active
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- 2016-08-10 WO PCT/CN2016/094390 patent/WO2017028727A1/en active Application Filing
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US6438101B1 (en) * | 1997-12-23 | 2002-08-20 | At&T Corp. | Method and apparatus for managing congestion within an internetwork using window adaptation |
CN1921364A (en) * | 2005-08-25 | 2007-02-28 | 中兴通讯股份有限公司 | Method for package transmitting and self-adaptive window zooming of reliable transmission layer based on message |
CN1992582A (en) * | 2005-12-31 | 2007-07-04 | 中兴通讯股份有限公司 | Implementation method for adaptive variable slide receiving window of broadband signaling link |
CN101175027A (en) * | 2006-10-31 | 2008-05-07 | 中兴通讯股份有限公司 | SSCOP periodic line sliding window updating method |
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