CN102137438A - Method and device for allocating internet protocol (IP) network resources - Google Patents
Method and device for allocating internet protocol (IP) network resources Download PDFInfo
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Abstract
The embodiment of the invention provides a method and a device for allocating internet protocol (IP) network resources. The method comprises the following steps of: monitoring a load status of an IP network; when the load status of the IP network is underload, determining a key frame transmitted in the IP network; and protecting the key frame transmitted in the IP network. By the method, when the IP network status is monitored to be underloaded, the key frame transmitted in the IP network is protected, so the effective utilization ratio of the network resources can be improved, a configuration mode of the network resources can be optimized, and the network resources can be rationally and flexibly allocated according to the status of the IP network.
Description
Technical field
The present invention relates to the communications field, relate to a kind of distribution method and device of IP network resource particularly.
Background technology
IP (Internet Protocol, procotol) network users' because restriction of cheap, the no region of its rate and advantage such as powerful are subjected to getting more and more favor, network IPization also becomes one of important trend of Communication Development.IP network is asynchronous transmission and non-real-time data business service at first, and itself has unsteadiness: on the one hand, when Internet resources are in saturation condition (network congestion), the information transfer delay is elongated, packet loss (PLR, Packet Loss Rate) rise, throughput of system sharply descends, and serious may cause periods of network disruption; On the other hand,, still might increase, therefore, need make full use of Internet resources to improve quality of service owing to reasons such as network failure cause packet loss or time delay when Internet resources are in idle condition.
See that on the whole the solution of network congestion control can be divided into two classes, a class is " the resource control of system Network Based "; Another kind of is " based on the resource control of using ".Early stage Internet resources control algolithm is based on system mostly, as " position is fair-queueing in turn " algorithm, " based on the control of service " algorithm etc.Occurred the Internet resources control algolithm towards concrete application in recent years, it concentrates on audio frequency, video communication control aspect, is also referred to as " based on the resource control of using " algorithm.
" based on the resource control of using " combines at special applications (as voice or image, video) and concrete application program and is contained in the application program.This class controlling mechanism generally is indifferent to the concrete structure of network, but regards whole network as a black box, by congestion information is obtained in the test of network state parameter, presses the inlet flow of certain policy control leaf by leaf again according to congestion information.
The resource control method to IP network that prior art provides only is when IP network is handled overload, responds this overload situation, and some groupings in the IP network communication link are abandoned, and reduces the generation of network congestion.This Internet resources control mode is dumb, and the effective rate of utilization of Internet resources is low.
Summary of the invention
The embodiment of the invention provides a kind of distribution method and device of IP network resource.
An aspect of of the present present invention provides a kind of distribution method of IP network resource, and described method comprises: the load condition in the monitoring IP network; When the load condition of described IP network is underload, determine the important frame of transmitting on the described IP network; Protect the important frame of transmitting in the described IP network.
Another aspect of the present invention provides a kind of distributor of IP network resource, and described device comprises: monitoring unit is used for monitoring the load condition of IP network; Determining unit is used for determining the important frame of transmitting on the described IP network when the load condition of described IP network is underload; Processing unit is used for the important frame of protecting described IP network to transmit.
Said method and device; can protect the important frame of IP network transmission neatly according to the IP network state that is monitored; realized the distribution of Internet resources being carried out rapidly, being adjusted flexibly, widely according to the IP network state; and then can improve the effective rate of utilization of Internet resources to greatest extent, optimize the configuration mode of Internet resources.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the distribution method flow chart of a kind of IP network resource of one embodiment of the invention;
Fig. 2 is the distribution method flow chart of a kind of IP network resource of another embodiment of the present invention;
Fig. 3 is the process flow diagram of the S202 of Fig. 2;
Fig. 3 a is the important frame determination methods flow chart of another embodiment of the present invention;
Fig. 4 is the distribution method flow chart of a kind of IP network resource of another embodiment of the present invention;
Fig. 5 is the effect schematic diagram of another embodiment of the present invention in overload state;
Fig. 6 is the effect schematic diagram of another embodiment of the present invention at the underload state;
Fig. 7 is the structural representation of distributor of a kind of IP network resource of another embodiment of the present invention;
Fig. 8 is the distributor structural representation of the another kind of IP network resource of another embodiment of the present invention;
Fig. 9 is another embodiment of the present invention structural representation of order unit really.
Embodiment
In below describing,, understand the present invention so that cut thoroughly in order to illustrate rather than, to have proposed the detail such as particular system structure, interface, technology in order to limit.Yet, not it will be clear to one skilled in the art that in having other embodiment of these details and can realize the present invention yet.In other situation, omit detailed description, in order to avoid unnecessary details hinders description of the invention to well-known device, circuit and method.
Technical scheme of the present invention, can be applied to various communication systems, for example: GSM, code division multiple access (CDMA, Code Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access Wireless), GPRS (GPRS, General Packet Radio Service), Long Term Evolution (LTE, Long Term Evolution) etc.Portable terminal (Mobile Terminal), also can be referred to as mobile subscriber (UE, User Equipment), mobile subscriber equipment etc., can be (for example through wireless access network, RAN, Radio Access Network) communicates with one or more core net, portable terminal can be a travelling carriage, as mobile phone (or being called " honeycomb " phone) with have the computer of portable terminal, for example, can be portable, pocket, hand-hold type, mobile device built-in computer or vehicle-mounted, they and wireless access network exchange language and/or data.
As shown in Figure 1, for the executive agent of this method of distribution method flow chart of a kind of IP network resource of the embodiment of the invention can be that base station or base station controller or other can be finished the network equipment of same function, this method can be as described below.
101, the load condition in the monitoring IP network;
The executive agent of supposing this method is a base station equipment, and when base station access customer number and traffic carrying capacity changed, the bandwidth of IP network also can correspondingly fluctuate.A kind of mode that detects the IP network state is: utilize the purpose gateway to analyze packet loss (PLR, Packet Loss Rate) and judge that the state of IP network is underload or overload.For example, as PLR during greater than the threshold value that sets, congestion flag set shows that IP network is in overload state; When PLR was lower than certain threshold value, the underload flag set showed that IP network is in the underload state.By obtaining corresponding set sign, can detect the current state of IP network.The embodiment of the invention in different application, also can adopt alternate manner to detect not as limit.For example, the length that can also monitor jitter-buffer (jitter buffer) judges whether congested.
S102, when the load condition of described IP network is underload, determine the important frame of transmitting on the described IP network;
For example, the frame that transmits on the described IP network (Frame) includes but not limited to: frame of video, picture frame, speech frame etc. also can comprise the Frame of other type.
The important speech frame of present embodiment is meant the speech frame that can effectively improve voice communication quality, maybe can improve the speech frame of voice subjective assessment branch (MOS, Mean opinion Score).
The definition of the important frame of video of present embodiment or the definition of picture frame and important speech frame is similar, if when promptly this LOF will have a strong impact on user's subjective feeling, then this frame is important frame, and for example, frame of video important frame or image important frame generally are meant the I frame.By determining important frame, present embodiment can be made suitable redundancy protecting or coding protection to the significant data frame that identifies when the network underload.
With the speech frame is example, in one section voice in different speech frame or the same speech frame different parameters be different to the influence of MOS, the importance of speech frame with the type of speech frame, speech energy is big or small or correlation this speech frame and front and back speech frame is relevant; The importance of speech parameter is relevant with the correlation of the type of speech frame, voice coding modes, this speech frame and front and back speech frame.Wherein, the correlation of judging speech frame and front and back frame can comprise: whether frame difference (or ratio) is less than certain thresholding before and after judging pitch period/short-time zero-crossing rate/formant/line spectrum equity, if speech frame is relevant less than certain thresholding then before and after showing, otherwise represents uncorrelated.Particularly, judge that whether a speech frame is the foundation of important speech frame, will describe in detail in follow-up embodiment.
The important frame of transmitting in S103, the described IP network of protection.
For example, protect important frame of video, significance map picture frame or the important speech frame that transmits in the described IP network.For example, also can be to the part in the above-mentioned Frame, promptly important parameters is protected.For example, speech frame can be made up of important speech parameter and non-important speech parameter two parts, can only protect the important speech parameter in the speech frame.
Alternatively; the process of the important speech frame of above-mentioned protection specifically can comprise: determined important speech frame or the important speech parameter that is contained in the speech frame are carried out redundancy encoding (CRC; CyclicRedundancy Check), re-transmission or forward error correction coding (FEC; Forward Error Coding), to protect important speech frame or the important speech parameter that transmits in the described IP network.Need to prove that the embodiment of the invention does not limit the integrality how to protect important speech frame or important speech parameter and the mode of correctness.
Need to prove, the guard method of Frames such as frame of video or picture frame is similar to guard method to speech frame.Promptly when underload, the significant data frame that identifies is made redundancy protecting or coding protection.
In another embodiment of the present invention, the above-mentioned Resource Allocation Formula that the distribution method of described IP network resource can also be definite according to network state, the voice packet that needs are transmitted transmits.Transmit voice packet and be meant and send after speech frame broken into the IP bag, redundant if desired or coding, then the bag of Zu Chenging is just bigger, needs the resource of distributing just many, otherwise just lacks.
By foregoing description as can be known; when monitoring the IP network state when being underload; the important frame of transmitting in the IP network is protected; thereby can improve the effective rate of utilization of Internet resources; optimize the configuration mode of Internet resources, and Internet resources have been carried out rationally, distributed flexibly according to the IP network state.
In another embodiment of the present invention; the distribution method of another kind of IP network resource is also disclosed; by when IP network is in underload; importance priority according to the speech frame that transmits on the IP network; speech frame or speech parameter are protected according to priority orders, with allocation of network resources dynamically.
As shown in Figure 2, be the distribution method flow chart of the another kind of IP network resource of another embodiment of the present invention.
201, the load condition in the monitoring IP network;
202, when the load condition of described IP network is underload,, determine the important speech frame that transmits on the described IP network according to the importance priority of the speech frame that transmits on the described IP network;
203, according to the importance priority order from high to low of described speech frame, the important speech frame that in described IP network, transmits after protection is definite.
In another embodiment of the present invention, described 202 detailed process can be as shown in Figure 3.
301, at least according to the energy size of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing described speech frame is important speech frame and non-important speech frame;
Preferably, judge that whether a speech frame is the foundation of important speech frame, can comprise the combination of following one or more modes at least: the correlation of the energy size of the type of speech frame, speech frame, this speech frame and its front and back speech frame.Present embodiment can be judged the importance of speech frame based on a kind of foundation, as judging according to the correlation of speech frame type, speech frame energy or speech frame separately.
For example, the type of speech frame can comprise: unvoiced frames, unvoiced frame, pure and impure transition sound frame, steady unvoiced frame, non-stationary unvoiced frame etc.Present frame is unvoiced frames or steady unvoiced frame in this way, judges that then it is non-important frame; If present frame is unvoiced frame, pure and impure transition sound frame or non-stationary unvoiced frame, judge that then it is an important frame.
For example, if the energy of present frame (as amplitude, amplitude equalizing value or peak value) is very big, judge that then it is an important frame; If the energy of present frame is very little, or quiet frame, judge that then it is non-important speech frame.For example, can adopt the judgment mode of relative value, if promptly the energy ratio of the energy of present frame and former frame is more than or equal to certain threshold value (reference value can be made as 1.2), perhaps the energy of present frame is more than or equal to certain threshold value, judge that then present frame is important speech frame, otherwise judge that present frame is non-important speech frame.
In another embodiment of the present invention, can also be according to VAD (Voice Activity Detection, the voice activation detection) method detects the importance rate of speech frame, if the similarity of current speech frame and adjacent speech frame is high more, be that the current speech frame is relevant with adjacent speech frame, then the current speech frame is that the probability of important speech frame is more little, otherwise probability is big more.For example, the reference frame that detects similarity can be: whether line spectrum pair/the pitch period that detects current speech frame and adjacent speech frame is similar, as judge that whether pitch period/short-time zero-crossing rate/formant/line spectrum equity front and back frame differences (or ratio) are less than certain thresholding, if speech frame is relevant less than certain thresholding then before and after showing, otherwise represents uncorrelated.
In another embodiment of the present invention, can also distinguish the importance of speech frame by other method, for example distinguish according to type of service or user type, for example the user is divided into VIP user or domestic consumer, then the former frame importance is just high, the latter's frame importance is just low, can distinguish for VIP user and domestic consumer distribute different signs in actual applications.
Present embodiment can also combine the grade of judging important frame with multiple foundation, and a real example of this determination methods can be shown in Fig. 3 a.
302, at least according to the voice coding modes of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing the speech parameter that described speech frame comprises is important speech parameter and non-important speech parameter;
For example, the speech frame type is to judging the influence of parameter importance: if speech frame is voiceless sound or fricative, then line spectrum pairs parameter may be important; If speech frame is the non-stationary voiced sound, then the pitch period parameter is important; If pure and impure sound transition, then line spectrum pair/pitch period/energy parameter is all very important.
Speech frame and front and back frame correlation are to judging the influence of parameter importance: judge each speech parameter respectively, if line spectrum pairs parameter close with front and back frame line spectrum pair interpolation (as the ratio of front and back line spectrum pair interpolation or difference within a preset range), then this parameter is non-important parameter, otherwise is important parameter; Other parameter judgment modes in like manner.
The voice coding modes of speech frame is to judging the influence of parameter importance: parameter that different voice coding modes is compiled out and quantification manner are all different, to judging parameter importance certain influence are arranged.Such as the TCH/HS coding parameter of indicating the present frame type is arranged, this parameter is generally all important; For another example: AMR12.2k is different with AMR4.75k line spectrum pair quantification manner, is judged to also difference of important LSF parameter.
303, generate the importance priority of the speech frame that transmits in the described IP network.
For example, described importance priority sorts from high to low and is: comprise important speech parameter important speech frame, comprise non-important speech parameter important speech frame, comprise important speech parameter non-important speech frame, comprise the non-important speech frame of non-important speech parameter;
304,, select the important speech frame that transmits on the described IP network according to described importance priority.
For example, can establish above-mentioned importance priority is 4 grades, 3 grades, 2 grades, 1 grade from high to low, then can select following speech frame as the important speech frame that transmits in the IP network:
4 grades of speech frames; 4 grades of speech frames and 3 grades of speech frames; 4 grades of speech frames and 2 grades of speech frames; And 4 grades of speech frames, 3 grades of speech frames and 2 grades of speech frames.
Describe importance priority order from high to low below in detail, the process of the important speech frame that in described IP network, transmits after protection is determined according to described speech frame.
Corresponding to 304, the important speech frame that on described IP network, transmits after can determining according to the following order protection:
(4 grades), (4 grades, 3 grades), (4 grades, 3 grades, 2 grades).
For example, when the important speech frame after determining comprised 4 grades of speech frames, 3 grades of speech frames and 2 grades of speech frames, the order of protecting above-mentioned important speech frame also can be (4 grades, 2 grades, 3 grades), and this is a kind of mode that important parameter in the speech frame is preferentially protected.
For example, can protect the important speech frame that transmits in the described IP network of selecting by the described important speech frame of selecting is carried out redundancy encoding, re-transmission or forward error correction coding.
For example, also can carry out redundancy encoding, re-transmission or forward error correction coding to whole payloads of the important speech frame that transmits in the described IP network or the important speech parameter in the payload.
For example, the important speech parameter in the payload is made error correction coding, and non-important speech parameter is not done error correction coding.
For example, important speech parameter is adopted Low Bit-rate Coding, non-important parameter adopts high code check coding.
For example, send important speech frame is redundant, non-important speech frame directly sends; Or when receiving terminal is found important lost speech frames, then require to retransmit, when receiving terminal is found non-important lost speech frames, then directly make smoothing processing, and do not require re-transmission at receiving terminal.
The embodiment of the invention is not limited to this, can also protect the correctness in transmission course and the integrality of important speech parameter by other coded system or means.
In another embodiment of the present invention, the distribution method of described IP network resource also comprises: according to the above-mentioned Resource Allocation Formula that network state is determined, the voice packet that needs are transmitted transmits.
Description by the foregoing description as can be known; when monitoring the IP network state when being underload; the important speech parameter that important speech frame in the speech frame that transmits in the IP network or speech frame comprise is protected; thereby can improve the effective rate of utilization of Internet resources; the voice service quality of improvement under the identical network resource utilization; reduce time delay; optimize the configuration mode of Internet resources; and according to the IP network state Internet resources have been carried out reasonable flexible allocation and adjusted with extensive, improved the recipient's who is in the communication link receiving terminal experience and impression.
In another embodiment of the present invention, the distribution method of another kind of IP network resource is also disclosed, this method synthesis is considered the different disposal situation that is in overload and underload when the IP network state, respectively two kinds of network states is adopted corresponding the processing, to optimize the distribution to the IP network resource.
As shown in Figure 4, be the distribution method flow chart of the another kind of IP network resource of another embodiment of the present invention.
401, the load condition of monitoring IP network;
402, when the load condition of described IP network is underload, determine the important frame of transmitting on the described IP network;
403, the important frame of transmitting in the described IP network of protection;
The content of 401-403 describes in detail in the aforementioned embodiment, so do not give unnecessary details at this.
404, when the load condition of described IP network is overload, determine the non-important frame of transmitting on the described IP network;
405, abandon the non-important frame of transmitting in the described IP network.
For example, the detailed process of 404-405 can be as described below.
When the load condition of described IP network is overload, determine the non-important speech frame that transmits on the described IP network; Abandon the non-important speech frame that transmits in the described IP network.
In another embodiment of the present invention, the detailed process of 404-405 can be as described below.
When the load condition of described IP network is overload, determine the non-important frame of video of transmitting on the described IP network; Abandon the non-important frame of video of transmitting in the described IP network.
In another embodiment of the present invention, the detailed process of 404-405 can be as described below.
When the load condition of described IP network is overload, determine the non-significance map picture frame that transmits on the described IP network; Abandon the non-significance map picture frame that transmits in the described IP network.
For convenience of description, below be example with the speech frame, the implementation procedure of the embodiment of the invention is described.
The process of the non-important speech frame that transmits on above-mentioned definite described IP network can comprise: according to the importance priority of the speech frame that transmits on the described IP network, determine the non-important speech frame that transmits on the described IP network.
For example, can be according to the division foundation of describing in the previous embodiment, the importance priority of dividing the speech frame that transmits in the described IP network about importance priority.The importance priority of the speech frame that transmits in the described IP network sorted from high to low is: comprise important speech parameter important speech frame, comprise non-important speech parameter important speech frame, comprise important speech parameter non-important speech frame, comprise the non-important speech frame of non-important speech parameter.
In another embodiment of the present invention, the method for present embodiment can be carried out the priority division to the importance of speech frame, selects importance priority to be in back 2 speech frame, as the non-important speech frame that transmits on the described IP network.
The above-mentioned process that abandons the non-important speech frame that transmits in the described IP network can comprise: the importance priority order from low to high according to described speech frame abandons the non-important speech frame that transmits in the described IP network.
For example, loss priority is: comprise non-important parameter non-important frame, comprise important parameter non-important frame, comprise non-important parameter important frame, comprise the important frame of important parameter.This loss priority also can be adjusted according to practical application.
In other embodiments of the invention, also can only abandon a part that comprises in the speech frame, be about to the non-important speech parameter that speech frame comprises and abandon, rather than abandon complete speech frame.
In another embodiment of the present invention, the distribution method of described IP network resource can also comprise: according to the above-mentioned Resource Allocation Formula that network state is determined, the voice packet that needs are transmitted transmits.
More than be example with the speech frame, the implementation procedure of the embodiment of the invention has been described.And for the respective handling process of Frames such as frame of video or picture frame, also be to judge importance earlier, come the distributing IP Internet resources according to importance again, so do not give unnecessary details at this.
Fig. 5 is the effect schematic diagram in overload state.Fig. 6 is the effect schematic diagram of the embodiment of the invention at the underload state.
In Fig. 5, abscissa is a packet loss, and ordinate is voice MOS.As can be seen from Figure 5, when overload state, the technical scheme of using inventive embodiments to provide is same band efficient (Bandwidth Efficiency) at identical packet loss) under promote about 0.5 minute than the MOS of passive packet loss at random.The score value of MOS be according to ITUT P.862 PESQ (Perceptual Evaluation ofSpeech Quality, the perception evaluation of the voice quality) algorithm computation introduced of agreement come out, this also is to estimate voice quality at present to use and estimate mark very widely.
In Fig. 6, abscissa is redundancy rate (Redundancy), and ordinate is MOS.As can be seen from Figure 6, when the underload state, using the technical program is that the MOS that compares redundancy scheme at random under the same band efficient promotes about 0.2 minute in the same redundant rate.
Among the above-mentioned described embodiment, according to the importance priority of network state and speech frame or speech parameter allocation of network resources dynamically; When network is in overload state, then can initiatively abandon low speech frame of importance priority or speech parameter; When network is in the underload state, then can protect importance priority high speech frame or speech parameter, last, according to the resource allocation of determining voice packet is sent.
Based on above analysis, the embodiment of the invention can reach following beneficial technical effects: one, save Internet resources to greatest extent, guarantee voice quality optimum under identical network resource utilization simultaneously; Two, Internet resources are carried out flexibly, adjust rapidly, reduced time delay, the resource adjustment region is wider, can realize " seamless " adjustment, for example: the AMR-NB of prior art comprises 8 kinds of speed at present, be 4.75k/5.15k/5.9k/6.7k/7.4k/7.95k/10.2k/12.2k, then resource allocation can only be selected these 8 kinds the insides.If current available bandwidth resources is 11k, transmission 12.2k service resources is not enough, and transmission 10.2k service resources surplus adopts the scheme of the embodiment of the invention can make full use of this 11k resource, thereby reaches than only utilizing the more excellent performance of 10.2k.In sum, the embodiment of the invention can be used less resources by frame losing, and redundancy can be used more resources, has so just realized the seamless adjustment to resource; Three, suitable scene is extensive.
Another embodiment of the present invention also provides a kind of distributor of IP network resource.As shown in Figure 7, be the structural representation of the distributor of a kind of IP network resource of another embodiment of the present invention.As shown in Figure 7, this device 10 comprises:
For example, described determining unit 102 can be used for determining the important speech frame that transmits on the described IP network when the load condition of described IP network is underload.
For example, described determining unit 102 can be used for determining the important frame of video of transmitting on the described IP network when the load condition of described IP network is underload.
For example, described determining unit 102 can be used for determining the significance map picture frame that transmits on the described IP network when the load condition of described IP network is underload.
In another embodiment of the present invention, when corresponding to the relevant application of speech frame, described determining unit 102, can also be used at least according to the type of speech frame, the energy size of speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing the speech frame that transmits on the described IP network is important speech frame and non-important speech frame.
For example, described processing unit 103 can be used for important speech frame, frame of video or the picture frame of protecting described IP network to transmit.
For example, when corresponding to the relevant application of speech frame, described processing unit 103 can be used for by the described speech frame of selecting being carried out redundancy encoding, re-transmission or forward error correction coding, the important speech frame that transmits in the described IP network that protection is determined.Below only be some optional modes of the embodiment of the invention, but the embodiment of the invention is not as limit.
In another embodiment of the present invention, described device 10 can also comprise the transmitting element (not shown), is used for the above-mentioned Resource Allocation Formula definite according to network state, and the voice packet that needs are transmitted transmits.
The device of the embodiment of the invention; when monitoring the IP network state when being underload; the important speech frame that transmits in the IP network is protected; thereby can improve the effective rate of utilization of Internet resources; the voice service quality of improvement under the identical network resource utilization; reduce time delay, optimize the configuration mode of Internet resources, and Internet resources have been carried out rationally, distributed flexibly according to the IP network state.
Another embodiment of the present invention also provides a kind of distributor of IP network resource, and shown in 8, the distributor 20 of this IP network resource comprises: monitoring unit 201 is used for monitoring the load condition of IP network; Determining unit 202 is used for when the load condition of described IP network is underload, according to the importance priority of the speech frame that transmits on the described IP network, determines the important speech frame that transmits on the described IP network; Processing unit 203 is used for the important speech frame of protecting described IP network to transmit.
In another embodiment of the present invention, as shown in Figure 9, described determining unit 202 can also comprise: the first classification subelement, 2021, the second classification subelements 2022, ordering subelement 2023 and chooser unit 2024.
The described first classification subelement 2021, be used at least according to the energy size of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing described speech frame is important speech frame and non-important speech frame.
The described second classification subelement 2022, be used at least according to the voice coding modes of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing the speech parameter that described speech frame comprises is important speech parameter and non-important speech parameter.
Described ordering subelement 2023, be used for generating the importance priority of the speech frame that described IP network transmits, described importance priority sorts from high to low and is: the non-important speech parameter of the important speech parameter of the non-important speech parameter of the important speech parameter of important speech frame, important speech frame, non-important speech frame, non-important speech frame.
Described chooser unit 2024 is used for according to described importance priority, selects the important speech frame that transmits on the described IP network.
In another embodiment of the present invention, described processing unit 203 can be used for by the described speech frame of selecting being carried out redundancy encoding, re-transmission or forward error correction coding, the important speech frame that transmits in the described IP network that protection is selected.
For example, described processing unit 203 can be used for the importance priority order from high to low according to described speech frame, the important speech frame that transmits in the described IP network that protection is selected.
The device that the embodiment of the invention provides in the time of can also working as the network state of being monitored and be overload, initiatively abandons lower speech frame of importance priority or speech parameter.Illustrate that below this installs further function:
In another embodiment of the present invention, described determining unit 202 can also be used for determining the non-important frame of transmitting on the described IP network when the load condition of described IP network is overload.
For example, described determining unit 202 can be used for determining the non-important speech frame that transmits on the described IP network when the load condition of described IP network is overload.
For example, described determining unit 202 can be used for when the load condition of described IP network is overload, according to the importance priority of the speech frame that transmits on the described IP network, determines the non-important speech frame that transmits on the described IP network.For example, can select importance priority is the speech frame of 1 grade and 2 grades, or the speech frame of 1 grade and 3 grades, or 1 grade of speech frame is as the non-important speech frame that transmits on the described IP network.
In another embodiment of the present invention, described processing unit 203 can also be used for abandoning the non-important frame that described IP network is transmitted.
For example, described processing unit 203 can be used for abandoning non-important speech frame, frame of video or the picture frame that described IP network is transmitted.
For example, during corresponding to the relevant application of speech frame, described processing unit 203 is used for the importance priority order from low to high according to described speech frame, abandons the non-important speech frame that transmits in the described IP network.Can also speech frame integral body not abandoned, but abandon its part, promptly abandon the non-important parameters that it comprised.
The course of work of above-mentioned each unit or subelement describes in detail in said method embodiment, so do not give unnecessary details at this.
In another embodiment of the present invention, the distributor 20 of this IP network resource can also comprise the transmitting element (not shown), is used for the above-mentioned Resource Allocation Formula definite according to network state, and the voice packet that needs are transmitted transmits.
The distributor of the IP network resource that the embodiment of the invention provides is according to the importance priority of network state and speech frame or speech parameter allocation of network resources dynamically; When network is in overload state, then can initiatively abandon low speech frame of importance priority or speech parameter; When network is in the underload state, then can protect importance priority high speech frame or speech parameter, last, according to the resource allocation of determining voice packet is sent.Thereby the embodiment of the invention can reach following useful technique effect: one, save Internet resources to greatest extent, guarantee voice quality optimum under identical network resource utilization simultaneously; Two, Internet resources are carried out flexibly, adjust rapidly, reduced time delay, the resource adjustment region is wider, can realize that " seamless " adjust, and for example can use less resources by frame losing, and redundancy can be used more resources, has so just realized the seamless adjustment to resource; Three, suitable scene is extensive.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above embodiment only in order to the technical scheme of the explanation embodiment of the invention, is not intended to limit; Although the embodiment of the invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the embodiment of the invention.
Claims (14)
1. the distribution method of an IP network resource is characterized in that, described method comprises:
The load condition of monitoring IP network;
When the load condition of described IP network is underload, from a plurality of frames that described IP network is transmitted, determine important frame;
Protect the important frame of transmitting in the described IP network.
2. method according to claim 1 is characterised in that, determines that from a plurality of frames that described IP network is transmitted important frame comprises:
Generate the importance priority of a plurality of frames that transmit on the described IP network;
According to the importance priority of a plurality of frames that transmit on the described IP network, determine the important frame of transmitting on the described IP network.
3. method according to claim 2 is characterised in that, a plurality of frames that transmit on the described IP network comprise speech frame; The importance priority that generates the speech frame that transmits on the described IP network comprises:
At least according to the energy size of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing described speech frame is important speech frame and non-important speech frame;
At least according to the voice coding modes of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing the speech parameter that described speech frame comprises is important speech parameter and non-important speech parameter;
Generate the importance priority of the speech frame that transmits in the described IP network, described importance priority sorts from high to low and is: comprise important speech parameter important speech frame, comprise non-important speech parameter important speech frame, comprise important speech parameter non-important speech frame, comprise the non-important speech frame of non-important speech parameter.
4. method according to claim 2 is characterized in that, protects the important frame of transmitting in the described IP network to comprise:
Whole payloads of the important frame transmitted in the described IP network or the important parameter in all frame payloads are carried out redundancy encoding, re-transmission or forward error correction coding.
5. method according to claim 1 is characterized in that, described method also comprises:
When the load condition of described IP network is overload, from a plurality of frames that described IP network is transmitted, determine non-important frame;
Abandon the non-important frame of transmitting in the described IP network.
6. method according to claim 5 is characterised in that, determines that from a plurality of frames that described IP network is transmitted non-important frame comprises:
Generate the importance priority of a plurality of frames that transmit on the described IP network;
According to the importance priority of a plurality of frames that transmit on the described IP network, determine the non-important frame of transmitting on the described IP network.
7. method according to claim 6 is characterised in that, abandons the non-important frame of transmitting in the described IP network and comprises:
Importance priority order from low to high according to described a plurality of frames abandons the non-important frame of transmitting in the described IP network.
8. the distributor of an IP network resource is characterized in that, described device comprises:
Monitoring unit is used for monitoring the load condition of IP network;
Determining unit is used for when the load condition of described IP network is underload, determines important frame from a plurality of frames that described IP network is transmitted;
Processing unit is used for the important frame of protecting described IP network to transmit.
9. device according to claim 8 is characterized in that, described determining unit comprises:
First module is used to generate the importance priority of a plurality of frames that transmit on the described IP network;
Unit second is used for the importance priority according to a plurality of frames that transmit on the described IP network, determines the important frame of transmitting on the described IP network.
10. device according to claim 9 is characterized in that, a plurality of frames that transmit on the described IP network comprise speech frame; Described first module comprises:
The first classification subelement is used at least wherein a kind of according to the correlation of the energy size of the type of described speech frame, described speech frame, described speech frame and its front and back speech frame, and dividing described speech frame is important speech frame and non-important speech frame;
The second classification subelement, be used at least according to the voice coding modes of the type of described speech frame, described speech frame, described speech frame and correlation wherein a kind of of speech frame before and after it, dividing the speech parameter that described speech frame comprises is important speech parameter and non-important speech parameter;
The ordering subelement, be used for generating the importance priority of the speech frame that described IP network transmits, described importance priority sorts from high to low and is: comprise important speech parameter important speech frame, comprise non-important speech parameter important speech frame, comprise important speech parameter non-important speech frame, comprise the non-important speech frame of non-important speech parameter.
11. device according to claim 8 is characterized in that,
Described processing unit is used for whole payloads of important frame that described IP network is transmitted or the important parameter in all frame payloads and carries out redundancy encoding, re-transmission or forward error correction coding.
12. device according to claim 8 is characterized in that,
Described determining unit also is used for when the load condition of described IP network is overload, determines non-important frame from a plurality of frames that described IP network is transmitted;
Described processing unit also is used for abandoning the non-important frame that described IP network is transmitted.
13. device according to claim 12 is characterized in that, described determining unit comprises:
First module is used to generate the importance priority of a plurality of frames that transmit on the described IP network;
Unit second also is used for when the load condition of described IP network is overload, according to the importance priority of a plurality of frames that transmit on the described IP network, determines the non-important frame of transmitting on the described IP network.
14. device according to claim 13 is characterized in that,
Described processing unit also is used for the importance priority order from low to high according to described a plurality of frames, abandons the non-important frame of transmitting in the described IP network.
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| CN2010101044051A CN102137438A (en) | 2010-01-25 | 2010-01-25 | Method and device for allocating internet protocol (IP) network resources |
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| CN2010101044051A CN102137438A (en) | 2010-01-25 | 2010-01-25 | Method and device for allocating internet protocol (IP) network resources |
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