CN105933293A - Call admission control method and system - Google Patents
Call admission control method and system Download PDFInfo
- Publication number
- CN105933293A CN105933293A CN201610224182.XA CN201610224182A CN105933293A CN 105933293 A CN105933293 A CN 105933293A CN 201610224182 A CN201610224182 A CN 201610224182A CN 105933293 A CN105933293 A CN 105933293A
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- China
- Prior art keywords
- voip
- access point
- available bandwidth
- bandwidth number
- business
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/20—Negotiating bandwidth
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a call admission control method and system. The method includes the following steps that: beacon frames and detection response frames are pre-extended, wherein the extended beacon frames and the detection response frames contain available bandwidth amount of VoIP business on an access point; when the beacon frames and the detection response frames from the access point are received, a VoIP terminal obtains and records the available bandwidth amount of the VoIP business on the access point; and when the VoIP terminal is connected into the access point and conducts VoIP business, the VoIP terminal provides VoIP business satisfying the available bandwidth amount according to the available bandwidth amount of the VoIP business on the access point. According to the call admission control method and system of the invention, call admission control is performed on a connected VoIP, so that VoIP speech quality can be ensured.
Description
Technical field
The present embodiments relate to communication technical field, particularly relate to the side of a kind of Admission Control
Method and system.
Background technology
The problem that there will be VoIP voice quality at the WiFi having VoIP access terminal, asks
Topic mainly shows themselves in that at the band that can meet VoIP access terminal when the bandwidth of access point (AP)
When width requires, voice quality is fine；And if once VoIP accesses number too much, the bandwidth of AP
When cannot meet the access of VoIP, it is not only the voice matter of last VoIP terminal accessed
Amount is affected, and the voice quality of all VoIP terminals accessed on AP all can be subject to
To impact, consequence is the most serious.
Such as, after accessing now with 3 VoIP terminals, terminal 1 and terminal 2, due to AP
Bandwidth can meet requirement, so the speech quality of terminal 1 and terminal 2 is the most fine.And when eventually
After end 3 access, owing to the bandwidth of AP cannot meet the VoIP call of terminal 3, can cause end
The voice quality of end 1, terminal 2 and terminal 3 all can decline, thus affects all VoIP terminals
User satisfaction.
Summary of the invention
The present invention provides the method and system of a kind of Admission Control, by entering the VoIP accessed
Row Admission Control, thus ensure VoIP voice quality.
The present invention provides a kind of method of Admission Control, including: extended beacon frame and spy in advance
Surveying response frame, described extended beacon frame and probing response frame include that VoIP business is on an access point
Available bandwidth number；When receiving from the beacon frame of access point or probing response frame, VoIP terminal
Obtain and record VoIP business available bandwidth number on an access point；When VoIP terminal is connected to connect
When access point carries out VoIP business, according to VoIP business available bandwidth number on an access point, it is provided that
Meet the VoIP business of available bandwidth number.
Further, the described frame of extended beacon in advance and probing response frame, including: pass through beacon frame
Parameter field is specified to add VoIP business available band on an access point with the manufacturer in probing response frame
Wide number.
Further, described when receiving from the beacon frame of access point or probing response frame, VoIP
Terminal obtains and records VoIP business available bandwidth number on an access point, including: connect when for the first time
When receiving from the beacon frame of access point or probing response frame, VoIP terminal obtains VoIP business and exists
Available bandwidth number on access point, and locally created described VoIP business on an access point available
The record of bandwidth number；When again receiving from the beacon frame of access point or probing response frame, VoIP
Terminal obtains VoIP business available bandwidth number on an access point, and the described VoIP industry to record
Business available bandwidth number on an access point is updated.
Further, described when VoIP terminal be connected to access point carry out VoIP business time, according to
VoIP business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number,
Including: when VoIP terminal be connected to access point dial voip phone time, VoIP terminal detection record
VoIP business available bandwidth number on an access point；When call signaling is mutual, it is provided that meeting can
With the VoIP capability set of bandwidth number；If the lowest speed that available bandwidth number is supported less than VoIP terminal
Rate voice coding, then refusal sends call signaling.
Further, when VoIP terminal be connected to access point carry out VoIP business time, according to VoIP
Business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number, including:
When VoIP terminal is connected to access point reception voip phone, the VoIP of VoIP terminal detection record
Business available bandwidth number on an access point；When call signaling is mutual, it is provided that meet available bandwidth
The VoIP capability set of number；If the minimum speed limit voice coder that available bandwidth number little VoIP terminal is supported
Code, then send and disconnect call signaling.
The present invention provides the system of a kind of Admission Control, including: access point, for expanding in advance
Exhibition beacon frame and probing response frame；When VoIP terminal sends beacon frame and probing response frame, in institute
State the available bandwidth number carrying VoIP business in beacon frame and probing response frame on an access point；VoIP
Terminal, for receiving from access point beacon frame or probing response frame, obtains and records VoIP business
Available bandwidth number on an access point；When VoIP terminal be connected to access point carry out VoIP business time,
According to VoIP business available bandwidth number on an access point, it is provided that meet the VoIP of available bandwidth number
Business.
Further, described access point extended beacon frame and probing response frame in advance, including: described
Access point manufacturer in beacon frame and probing response frame specifies parameter field to add VoIP business and is connecing
Available bandwidth number in access point.
Further, described VoIP terminal receives from access point beacon frame or probing response frame, obtains
Take and record VoIP business available bandwidth number on an access point, including: when described VoIP terminal
When receiving for the first time from the beacon frame of access point or probing response frame, VoIP terminal obtains VoIP
Business available bandwidth number on an access point, and in locally created described VoIP business on an access point
The record of available bandwidth number；When described VoIP terminal receives the beacon frame from access point again
Or during probing response frame, VoIP terminal obtains VoIP business available bandwidth number on an access point,
And the described VoIP business recorded available bandwidth number on an access point is updated.
Further, when described VoIP terminal be connected to access point carry out VoIP business time, according to
VoIP business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number,
Including: when described VoIP terminal be connected to access point dial voip phone time, VoIP terminal detect
The VoIP business of record available bandwidth number on an access point；When call signaling is mutual, it is provided that full
The VoIP capability set of foot available bandwidth number；If available bandwidth number is supported less than VoIP terminal
Low-ratespeech coding, then refusal sends call signaling.
Further, when described VoIP terminal be connected to access point carry out VoIP business time, according to
VoIP business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number,
Including: when described VoIP terminal is connected to access point reception voip phone, VoIP terminal detects
The VoIP business of record available bandwidth number on an access point；When call signaling is mutual, it is provided that full
The VoIP capability set of foot available bandwidth number；If it is minimum that available bandwidth number little VoIP terminal is supported
Rate speech coding, then send and disconnect call signaling.
The method and system of the Admission Control that the present invention provides, by ringing at beacon frame and detection
Answer extension VoIP business available bandwidth number on an access point in frame so that when receiving from access
When the beacon frame of point or probing response frame, VoIP terminal obtains and records VoIP business at access point
On available bandwidth number；When VoIP terminal be connected to access point carry out VoIP business time, according to VoIP
Business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number.This
Bright by the VoIP accessed is carried out Admission Control, thus ensure VoIP voice quality.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, aobvious and easy
Insight, the accompanying drawing in describing below is some embodiments of the present invention, for ordinary skill
From the point of view of personnel, on the premise of not paying creative work, it is also possible to obtain it according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the schematic flow sheet of method one embodiment of Admission Control in the present invention；
Fig. 2 is the structural representation of system one embodiment of Admission Control in the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with
Accompanying drawing in the embodiment of the present invention, carries out clear, complete to the technical scheme in the embodiment of the present invention
Ground describes, it is clear that described embodiment is a part of embodiment of the present invention rather than whole
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
WLAN (WLAN) realizes voice (VoIP) based on Internet Protocol
Communication will face two main challenges: is on the one hand how to promote VoIP capacity；The opposing party
Face is the service quality how being guaranteed voice by access control.
Fig. 1 is the schematic flow sheet of method one embodiment of Admission Control in the present invention, such as Fig. 1
Shown in, including:
Step S11, in advance extended beacon frame and probing response frame, described extended beacon frame and detection ring
Frame is answered to include VoIP business available bandwidth number on an access point.
Beacon (Beacon) frame, by periodically sending Beacon frame, allows mobile workstation learn this
The existence of network, thus adjust parameter necessary to this network of addition.In basic network, access
Point must be responsible for sending Beacon frame, and Beacon frame scope in one's power is basic service region, due to
All communications all must pass through access point, and therefore work station otherwise cannot be able to not receive away from too far away
To beacon Beacon frame.
Probe response (Probe Response) frame, if probe requests thereby (Probe Request) frame
The network detected is the most compatible, and this network will be with Probe Response frame response.On basis
In architecture network, the work station being responsible for response is access point, and access point can periodically send Beacon
Signal.
In this step, relative to prior art, extend beacon frame and probing response frame, specifically
Can specify parameter (Vendor Specific) word by the manufacturer in beacon frame and probing response frame
Duan Tianjia VoIP business available bandwidth number on an access point.
Step S12, when receiving from the beacon frame of access point or probing response frame, VoIP is eventually
End obtains and records VoIP business available bandwidth number on an access point.
In this step, the Beacon frame from access point or Probe are received for the first time as STA
During Response frame, in the Vendor Specific from Beacon frame or Probe Response frame
Obtain VoIP business available bandwidth number on an access point, and carry out record.
Follow-up when again receiving Beacon frame or Probe Response frame, obtain VoIP business
Available bandwidth number on an access point, and be updated.
Step S13, when VoIP terminal be connected to access point carry out VoIP business time, according to VoIP
Business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number.
In this step, when VoIP terminal be connected to access point carry out dialing voip phone time, VoIP
The VoIP business of record available bandwidth number on an access point before terminal detection.Hand at call signaling
Time mutually, provide only the VoIP capability set meeting bandwidth requirement, the VoIP being unsatisfactory for bandwidth requirement
Capability set is rejected outside.If the available bandwidth number that VoIP business is on an access point is too small, it is impossible to full
The minimum speed limit voice coding that foot VoIP terminal is supported, then refusal sends call signaling, and this locality is sent out busy
Sound.
When VoIP terminal be connected to access point be received voip phone time, VoIP terminal detects it
The VoIP business of front record available bandwidth number on an access point.When call signaling is mutual, only carry
For meeting the VoIP capability set of bandwidth requirement, the VoIP capability set being unsatisfactory for bandwidth requirement is rejected
Outside.If the available bandwidth number that VoIP business is on an access point is too small, it is impossible to meet VoIP eventually
The minimum speed limit voice coding that end is supported, then transmission disconnection call signaling is to calling party, local depressed
Bell.
Fig. 2 is the structural representation of system one embodiment of Admission Control in the present invention.Such as Fig. 2
Shown in, including:
Access point, for extended beacon frame and probing response frame in advance；Beacon is sent to VoIP terminal
When frame and probing response frame, described beacon frame and probing response frame carry VoIP business and is accessing
Available bandwidth number on point；
VoIP terminal, for receiving from access point beacon frame or probing response frame, obtains and record
VoIP business available bandwidth number on an access point；VoIP is carried out when VoIP terminal is connected to access point
During business, according to VoIP business available bandwidth number on an access point, it is provided that meet available bandwidth number
VoIP business.
Specifically,
Described access point extended beacon frame and probing response frame in advance, including: described access point is at letter
Mark frame and probing response frame in manufacturer specify parameter field add VoIP business on an access point can
Use bandwidth number.
Described VoIP terminal receives from access point beacon frame or probing response frame, obtains and record
VoIP business available bandwidth number on an access point, including: when described VoIP terminal connects for the first time
When receiving from the beacon frame of access point or probing response frame, VoIP terminal obtains VoIP business and exists
Available bandwidth number on access point, and locally created described VoIP business on an access point available
The record of bandwidth number；When described VoIP terminal receives the beacon frame from access point or detection again
During response frame, VoIP terminal obtains VoIP business available bandwidth number on an access point, and to note
The described VoIP business of record available bandwidth number on an access point is updated.
When described VoIP terminal be connected to access point carry out VoIP business time, exist according to VoIP business
Available bandwidth number on access point, it is provided that meet the VoIP business of available bandwidth number, including: work as institute
State VoIP terminal and be connected to access point when dialing voip phone, the VoIP of VoIP terminal detection record
Business available bandwidth number on an access point；When call signaling is mutual, it is provided that meet available bandwidth
The VoIP capability set of number；If the minimum speed limit voice that available bandwidth number is supported less than VoIP terminal
Coding, then refusal sends call signaling.
When described VoIP terminal be connected to access point carry out VoIP business time, exist according to VoIP business
Available bandwidth number on access point, it is provided that meet the VoIP business of available bandwidth number, including: work as institute
State VoIP terminal be connected to access point receive voip phone time, VoIP terminal detection record VoIP
Business available bandwidth number on an access point；When call signaling is mutual, it is provided that meet available bandwidth
The VoIP capability set of number；If the minimum speed limit voice coder that available bandwidth number little VoIP terminal is supported
Code, then send and disconnect call signaling.
Embodiment one:
The voice coding that the support of such as VoIP terminal is following:
G.723-code rate 5.3Kbps；
G.729-code rate 8Kbps；
G.711-code rate 64Kbps.
When the available bandwidth number of the SSID local record that detection connects is 100Kbps, then VoIP
During Signalling exchange, this VoIP terminal capabilities set is provided as: G.723, G.729, G.711.
When the available bandwidth number of the SSID local record that detection connects is 20Kbps, then VoIP
During Signalling exchange, this VoIP terminal capabilities set is provided as: G.723, G.729.
When the available bandwidth number of the SSID local record that detection connects is 7Kbps, then VoIP
During Signalling exchange, this VoIP terminal capabilities set is provided as: G.723.
When the available bandwidth number of the SSID local record that detection connects is 3Kbps, then VoIP
During Signalling exchange, this VoIP terminal refuses all callings.
The method and system of the Admission Control that the present invention provides, by ringing at beacon frame and detection
Answer extension VoIP business available bandwidth number on an access point in frame so that when receiving from access
When the beacon frame of point or probing response frame, VoIP terminal obtains and records VoIP business at access point
On available bandwidth number；When VoIP terminal be connected to access point carry out VoIP business time, according to VoIP
Business available bandwidth number on an access point, it is provided that meet the VoIP business of available bandwidth number.This
Bright by the VoIP accessed is carried out Admission Control, thus ensure VoIP voice quality.
System embodiment described above is only schematically, wherein said as separating component
The unit illustrated can be or may not be physically separate, the parts shown as unit
Can be or may not be physical location, i.e. may be located at a place, or can also divide
Cloth is on multiple NEs.Some or all of mould therein can be selected according to the actual needs
Block realizes the purpose of the present embodiment scheme.Those of ordinary skill in the art are not paying creativeness
In the case of work, i.e. it is appreciated that and implements.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive
Each embodiment can add the mode of required general hardware platform by software and realize, and the most also may be used
To pass through hardware.Based on such understanding, technique scheme is the most in other words to prior art
The part contributed can embody with the form of software product, and this computer software product can
With storage in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD etc., including
Some instructions with so that computer equipment (can be personal computer, server, or
The network equipment etc.) perform the method described in some part of each embodiment or embodiment.
Last it is noted that above example is only in order to illustrate technical scheme, rather than
It is limited；Although the present invention being described in detail with reference to previous embodiment, this area
Those of ordinary skill is it is understood that it still can be to the technical scheme described in foregoing embodiments
Modify, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace
Change, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. the method for an Admission Control, it is characterised in that including:
Extended beacon frame and probing response frame in advance, wraps in described extended beacon frame and probing response frame
Include VoIP business available bandwidth number on an access point；
When receiving from the beacon frame of access point or probing response frame, VoIP terminal obtains and remembers
Record VoIP business available bandwidth number on an access point；
When VoIP terminal be connected to access point carry out VoIP business time, according to VoIP business access
Available bandwidth number on point, it is provided that meet the VoIP business of available bandwidth number.
The method of Admission Control the most according to claim 1, it is characterised in that described
Extended beacon frame and probing response frame in advance, including:
Specify parameter field to add VoIP business by the manufacturer in beacon frame and probing response frame connecing
Available bandwidth number in access point.
The method of Admission Control the most according to claim 1, it is characterised in that described
When receiving from the beacon frame of access point or probing response frame, VoIP terminal obtains and record
VoIP business available bandwidth number on an access point, including:
When for the first time receiving from the beacon frame of access point or probing response frame, VoIP terminal obtains
Take VoIP business available bandwidth number on an access point, and exist in locally created described VoIP business
The record of the available bandwidth number on access point；
When again receiving from the beacon frame of access point or probing response frame, VoIP terminal obtains
VoIP business available bandwidth number on an access point, and the described VoIP business of record is being accessed
Available bandwidth number on point is updated.
The method of Admission Control the most according to claim 1, it is characterised in that described
When VoIP terminal be connected to access point carry out VoIP business time, according to VoIP business on an access point
Available bandwidth number, it is provided that meet the VoIP business of available bandwidth number, including:
When VoIP terminal be connected to access point dial voip phone time, VoIP terminal detection record
VoIP business available bandwidth number on an access point；
When call signaling is mutual, it is provided that meet the VoIP capability set of available bandwidth number；
If the minimum speed limit voice coding that available bandwidth number is supported less than VoIP terminal, then refusal is sent out
Send call signaling.
The method of Admission Control the most according to claim 1, it is characterised in that described
When VoIP terminal be connected to access point carry out VoIP business time, according to VoIP business on an access point
Available bandwidth number, it is provided that meet the VoIP business of available bandwidth number, including:
When VoIP terminal is connected to access point reception voip phone, VoIP terminal detection record
VoIP business available bandwidth number on an access point；
When call signaling is mutual, it is provided that meet the VoIP capability set of available bandwidth number；
If the minimum speed limit voice coding that available bandwidth number little VoIP terminal is supported, then send disconnection
Call signaling.
6. the system of an Admission Control, it is characterised in that including:
Access point, for extended beacon frame and probing response frame in advance；Beacon is sent to VoIP terminal
When frame and probing response frame, described beacon frame and probing response frame carry VoIP business and is accessing
Available bandwidth number on point；
VoIP terminal, for receiving from access point beacon frame or probing response frame, obtains and record
VoIP business available bandwidth number on an access point；VoIP is carried out when VoIP terminal is connected to access point
During business, according to VoIP business available bandwidth number on an access point, it is provided that meet available bandwidth number
VoIP business.
The system of Admission Control the most according to claim 6, it is characterised in that described
Access point extended beacon frame and probing response frame in advance, including:
Described access point manufacturer in beacon frame and probing response frame specifies parameter field to add VoIP
Business available bandwidth number on an access point.
The system of Admission Control the most according to claim 6, it is characterised in that described
VoIP terminal receives from access point beacon frame or probing response frame, obtains and record VoIP business
Available bandwidth number on an access point, including:
When described VoIP terminal receives the beacon frame from access point or probing response frame for the first time
Time, VoIP terminal obtains VoIP business available bandwidth number on an access point, and locally created
The record of described VoIP business available bandwidth number on an access point；
When described VoIP terminal receives again from the beacon frame of access point or probing response frame,
VoIP terminal obtains VoIP business available bandwidth number on an access point, and the described VoIP to record
Business available bandwidth number on an access point is updated.
The system of Admission Control the most according to claim 6, it is characterised in that work as institute
State VoIP terminal and be connected to access point when carrying out VoIP business, according to VoIP business on an access point
Available bandwidth number, it is provided that meet the VoIP business of available bandwidth number, including:
When described VoIP terminal be connected to access point dial voip phone time, VoIP terminal detection note
The VoIP business of record available bandwidth number on an access point；
When call signaling is mutual, it is provided that meet the VoIP capability set of available bandwidth number；
If the minimum speed limit voice coding that available bandwidth number is supported less than VoIP terminal, then refusal is sent out
Send call signaling.
The system of Admission Control the most according to claim 6, it is characterised in that when
Described VoIP terminal is connected to access point when carrying out VoIP business, according to VoIP business at access point
On available bandwidth number, it is provided that meet the VoIP business of available bandwidth number, including:
When described VoIP terminal is connected to access point reception voip phone, VoIP terminal detection note
The VoIP business of record available bandwidth number on an access point；
When call signaling is mutual, it is provided that meet the VoIP capability set of available bandwidth number；
If the minimum speed limit voice coding that available bandwidth number little VoIP terminal is supported, then send disconnection
Call signaling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224182.XA CN105933293A (en) | 2016-04-12 | 2016-04-12 | Call admission control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224182.XA CN105933293A (en) | 2016-04-12 | 2016-04-12 | Call admission control method and system |
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| CN105933293A true CN105933293A (en) | 2016-09-07 |
Family
ID=56838168
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610224182.XA Pending CN105933293A (en) | 2016-04-12 | 2016-04-12 | Call admission control method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106507412A (en) * | 2016-10-31 | 2017-03-15 | 上海斐讯数据通信技术有限公司 | Beacon frame information method, wireless apss and terminal in wireless apss |
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| US20080130511A1 (en) * | 2006-12-05 | 2008-06-05 | Electronics And Telecommunications Research Institute | Method and apparatus for controlling variable bit-rate voice codec |
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Application publication date: 20160907 |