CN101072180B - Method and system for strengthening transport control layer control for next generation communication network - Google Patents
Method and system for strengthening transport control layer control for next generation communication network Download PDFInfo
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Abstract
In next generation network (NGN), function unit in transport layer sends information data of network resources to function unit in transport control layer. Based on the data, the function unit in transport control layer carries out distribution and route selection for network resources. Information data of network resources includes network topology, variable information, and information of using bandwidth of network link. Information data of network resources also includes any combination of following information in each flux type on each link of each node in transmission network: flux type and service mode in each type supported by each link of each node in transmission network; information of using bandwidth; information of number and rate of packet loss; information of minimal, maximal and average time delay; information of minimal, maximal and average wobble of time delay. The invention also discloses system for executing the method.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the transmission network technology in a kind of next generation communication network (NGN).
Background technology
In ITU-NGN (NGN of ITU definition), each functional unit of transport layer, TRE-FE (Transport Resource Enforcement Function Entity for example, transmit resource and carry out functional unit) or PE-FE (Policy Enforcement Function Entity, the policy enforcement function unit) etc. by the Rc interface promptly and accurately to the functional unit that transmits key-course, for example TRC-FE (Transport Resource Enforcement Function Entity transmits resource control function units) reports and submits network topology and resource information actively or passively.TRC-FE forms the network resource status data according to these topological sum resource informations of collecting, and according to these network resource datas resource and admission control and Path selection is carried out in session.
In the Rc relevant interface standard of ITU-T NGN definition at present and draft (mainly contain Y.2111RACF, Q.3304.1COPS-PR Rc and Rc Q.3304.2SNMP), the transport layer functional unit mainly has the operating position of network topology situation and variation and each link bandwidth of network to transmitting information that key-course functional unit (for example TRC-FE) reports and submits.And in TISPAN in (ETSI ES282001V1.1.1 (2005-08) and draft ETSI ES182019V0.4.1 (2007-02)), this partial content does not also relate to.
Information such as topology that the appointment transport layer is reported and submitted in the standard and link bandwidth operating position are the most basic information of carrying out resource and admission control at present, use these information can only carry out the resource and admission control of the basic single dimension of coarseness, promptly admit control according to the network link available bandwidth.Yet the business of NGN network support is quite abundant, and the session of business such as some real time business all has special requirement to time delay, delay variation or packet loss etc.In this case, the transport layer functional unit can not be realized accurate resource allocation and routing function to the network resource information that transmits the transmission of key-course functional unit in the prior art.
On the other hand, it should be the network that can support multiple discharge pattern (Traffic Class) that a NGN transmits network, must possess the ability that the different flow type is provided the difference service.Equally, be the situation that reflects that accurately Internet resources use, the functional unit of each transport layer also should be reported and submitted the network of relation resource situation of every kind of discharge pattern to the functional unit that transmits key-course.Significantly, do not provide these functions in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of not comprehensive, incomplete defective of the usage information of network resource of reporting and submitting that exists in the prior art that overcomes, strengthen the method and system of the control ability of transmission key-course.
One aspect of the present invention provides the method for strengthening transmitting key-course control in a kind of next generation communication network, and the transport layer functional unit in the described next generation communication network is to transmitting key-course functional unit sending network resource information data; Described transmission key-course functional unit carries out Resource Allocation in Networks and routing according to these data, described network resource information data comprises network topology and change information and network link bandwidth use information, the combination in any that also comprises following information in the described network resource information data: the first information, promptly transmit the discharge pattern supported on each link of each node of network and all types of method of service information; Second information promptly transmits the bandwidth of every kind of discharge pattern on each link of each node of network and uses information; The 3rd information promptly transmits the packet loss number and the packet loss information of every kind of discharge pattern on each link of each node of network; The 4th information promptly transmits minimum, the maximum and average time delay information of every kind of discharge pattern on each link of each node of network; The 5th information promptly transmits minimum, the maximum and average delay variation information of every kind of discharge pattern on each link of each node of network.
Preferably, the compound mode of described combination is: the first information and second information and the 3rd information and the 4th information and the 5th information.
Preferably, the described first information comprises the absolute information that guarantees the information of resource type, high-quality statistic multiplexing resource type, general statistic multiplexing resource type and the type of doing one's best and adopt the priority scheduling method of service of supporting.
Preferably, described mode of reporting and submitting comprises that initiatively the key-course functional unit reports described transport layer functional unit or described transmission key-course functional unit obtains to the inquiry of transport layer functional unit to transmitting.
The present invention provides the system that strengthens transmitting key-course control in a kind of next generation communication network on the other hand, comprise the transport layer functional unit and transmit the key-course functional unit, described transport layer functional unit comprises to the unit of reporting and submitting that transmits key-course functional unit sending network resource information data, described transmission key-course functional unit comprises the dispensing unit that carries out Resource Allocation in Networks and routing according to these data, described network resource information data comprises network topology and change information and network link bandwidth use information, the combination in any that also comprises following information in the described network resource information data: the first information, promptly transmit the discharge pattern supported on each link of each node of network and all types of method of service information; Second information promptly transmits the bandwidth of every kind of discharge pattern on each link of each node of network and uses information; The 3rd information promptly transmits the packet loss number and the packet loss information of every kind of discharge pattern on each link of each node of network; The 4th information promptly transmits minimum, the maximum and average time delay information of every kind of discharge pattern on each link of each node of network; The 5th information promptly transmits minimum, the maximum and average delay variation information of every kind of discharge pattern on each link of each node of network.
Preferably, the compound mode of described combination is: the first information and second information and the 3rd information and the 4th information and the 5th information.
Preferably, the described first information comprises the absolute information that guarantees the information of resource type, high-quality statistic multiplexing resource type, general statistic multiplexing resource type and the type of doing one's best and adopt the priority scheduling method of service of supporting.
Preferably, described mode of reporting and submitting comprises and describedly reports and submits the unit initiatively the key-course functional unit reports or described dispensing unit obtains to the inquiry of transport layer functional unit to transmitting.
Adopt method and system of the present invention, compared with prior art, changed the mode of carrying out resource and admission control according to single bandwidth parameter, but can carry out the control of one or more dimensions resource and admission according to a plurality of parameters such as bandwidth, time delay, delay variation and packet losses, comprehensive more, accurate to the admittance control and the resource allocation of Internet resources.
Description of drawings
Fig. 1 is the first example context Organization Chart of strengthening the system place of transmission key-course control in a kind of next generation communication network provided by the invention;
Fig. 2 is the part Organization Chart of second example context at the system place that reinforcement transmits key-course control in a kind of next generation communication network provided by the invention;
Fig. 3 is the structure chart based on the system provided by the invention of environment shown in Figure 1;
Fig. 4 is a data flow interaction process flow chart of strengthening the method for transmission key-course control in a kind of next generation communication network provided by the invention.
Embodiment
With reference to figure 1, illustrate the first example context framework at the system place of strengthening the control of transmission key-course in a kind of next generation communication network provided by the invention.This example context is the resource accommodating control function framework of ITU-TNGN.As shown in the figure, being positioned at the two big functional modules that have of transport layer, is respectively to transmit controlled function (RACF) module and transmitting function module.Can claim RACF to transmit key-course, and transmitting function can be known as transport layer.Transmitting key-course has functional unit TRC-FE and PD-FE, and transport layer has functional unit TRE-FE and PE-FE.The transport layer functional unit is by Rc interface and TRC-FE communication.About other data of the resource accommodating control function framework of ITU-T NGN, can obtain by consulting ITU-T NGN relevant criterion agreement.
With reference to figure 2, illustrate the part framework of second example context at the system place of strengthening the control of transmission key-course in a kind of next generation communication network provided by the invention.This example context is the part frame of the resource acceptance control system of TISPAN NGN.As shown in the figure, in this environment, the transport layer functional unit is Resource Control Enforcement Function (RCEF), is Access-Resource and Admission Control Function unit (Access-Resource and Admission Control Function) and transmit the key-course functional unit.Both are by the RE interface communication.Data about the other parts of the resource acceptance control system of TISPAN NGN can obtain by consulting TISPAN NGN relevant criterion agreement.
With reference to figure 3, illustrate structure based on the system provided by the invention of environment shown in Figure 1.As shown in the figure, the transport layer functional unit is TRE-FE, is TRC-FE and transmit the key-course functional unit.TRE-FE comprises the unit of reporting and submitting to the TRC-FE sending network resource information data, described TRC-FE comprises the dispensing unit that carries out Resource Allocation in Networks and routing according to these data, described network resource information data comprises network topology and change information and network link bandwidth use information, the combination in any that also comprises following information: the first information, promptly transmit the discharge pattern supported on each link of each node of network and all types of method of service information; Second information promptly transmits the bandwidth of every kind of discharge pattern on each link of each node of network and uses information; The 3rd information promptly transmits the packet loss number and the packet loss information of every kind of discharge pattern on each link of each node of network; The 4th information promptly transmits minimum, the maximum and average time delay information of every kind of discharge pattern on each link of each node of network; The 5th information promptly transmits minimum, the maximum and average delay variation information of every kind of discharge pattern on each link of each node of network.
Described combination in any, any compound mode that comprises these five kinds of information that is meant, for example, can be that the first information is only arranged, also can be that the 5th information is only arranged, and can be the combination of the first information and the 3rd information, can be the combination of second information and the 5th information, or the like.Wherein, optimum compound mode is that these five kinds of information have all, and promptly compound mode is the first information and second information and the 3rd information and the 4th information and the 5th information.
Wherein, preferably, the described first information comprises the absolute information that guarantees the information of resource type, high-quality statistic multiplexing resource type, general statistic multiplexing resource type and the type of doing one's best and adopt the priority scheduling method of service of supporting.Certainly can also be other type and other method of service, for example type information can also be emergency type, low promise type, non-low delay promise type or the like of postponing.
Wherein, the mode that TRC-FE and TRE-FE transmit above-mentioned information can be that TRE-FE initiatively reports to TEC-FE, also can be that TRC-FE obtains to the TRE-FE inquiry.
With reference to figure 4, illustrate the data flow interaction process flow process of the method for strengthening the control of transmission key-course in a kind of next generation communication network provided by the invention.As shown in the figure, the method comprising the steps of:
401, TRE-FE initiatively reports or the report network resource information data owing to the TRC-FE inquiry to TRC-FE; The data that relate in these data and the above-mentioned system are identical, do not repeat them here.
402, TRC-FE carries out the distribution and the routing of Internet resources according to these data.
Therefore, the functional unit of transport layer promptly and accurately to the functional unit that transmits key-course initiatively or passive report and submit described network resource information data.Transmit the functional unit of key-course and collect these data.When new conversation request arrives, carry out resource reservation and routing according to requirements such as bandwidth, time delay, delay variation or the packet loss of session and the suitable path of respective network resource Information Selection of collecting.Such as being when bandwidth and time delay are had requirement when session, the path that the functional unit of transmission key-course at first selects a bandwidth to be consistent, whether meet the requirement of conversation request then according to calculating path time delay time of delay of each this discharge pattern of node on the way, as meet, then choose this path, carry out respective resources distribution, reservation and routing work.If do not meet then reselect other paths, all do not meet as all paths, then inform other functional units (for example PD-FE) resource and admission control failure, there are not enough resources.Therefore, compared with prior art, changed the mode of carrying out resource and admission control according to single bandwidth parameter, but can carry out the control of one or more dimensions resource and admission according to a plurality of parameters such as bandwidth, time delay, delay variation and packet losses, comprehensive more, accurate to the admittance control and the resource allocation of Internet resources.
Above-mentioned embodiment only is for the convenient preferred embodiment that provides of the present invention being provided, can not being interpreted as qualification the present invention, therefore by all technical schemes that claim of the present invention covered all at the row of prescription of the present invention.
Claims (8)
1. strengthen transmitting the method that key-course is controlled in a next generation communication network, the transport layer functional unit in the described next generation communication network is to transmitting key-course functional unit sending network resource information data; Described transmission key-course functional unit carries out Resource Allocation in Networks and routing according to these data, described network resource information data comprises network topology and change information and network link bandwidth use information, it is characterized in that, also comprise the combination in any of following information in the described network resource information data:
The first information promptly transmits the discharge pattern supported on each link of each node of network and all types of method of service information;
Second information promptly transmits the bandwidth of every kind of discharge pattern on each link of each node of network and uses information;
The 3rd information promptly transmits the packet loss number and the packet loss information of every kind of discharge pattern on each link of each node of network;
The 4th information promptly transmits minimum, the maximum and average time delay information of every kind of discharge pattern on each link of each node of network;
The 5th information promptly transmits minimum, the maximum and average delay variation information of every kind of discharge pattern on each link of each node of network.
2. the method for claim 1 is characterized in that, the compound mode of described combination is: the first information and second information and the 3rd information and the 4th information and the 5th information.
3. method as claimed in claim 2, it is characterized in that the described first information comprises the absolute information that guarantees the information of resource type, high-quality statistic multiplexing resource type, general statistic multiplexing resource type and the type of doing one's best and adopt the priority scheduling method of service of supporting.
4. method as claimed in claim 2 is characterized in that, described mode of reporting and submitting comprises that initiatively the key-course functional unit reports described transport layer functional unit or described transmission key-course functional unit obtains to the inquiry of transport layer functional unit to transmitting.
5. strengthen transmitting the system that key-course is controlled in a next generation communication network, comprise the transport layer functional unit and transmit the key-course functional unit, described transport layer functional unit comprises to the unit of reporting and submitting that transmits key-course functional unit sending network resource information data, described transmission key-course functional unit comprises the dispensing unit that carries out Resource Allocation in Networks and routing according to these data, described network resource information data comprises network topology and change information and network link bandwidth use information, it is characterized in that, also comprise the combination in any of following information in the described network resource information data:
The first information promptly transmits the discharge pattern supported on each link of each node of network and all types of method of service information;
Second information promptly transmits the bandwidth of every kind of discharge pattern on each link of each node of network and uses information;
The 3rd information promptly transmits the packet loss number and the packet loss information of every kind of discharge pattern on each link of each node of network;
The 4th information promptly transmits minimum, the maximum and average time delay information of every kind of discharge pattern on each link of each node of network;
The 5th information promptly transmits minimum, the maximum and average delay variation information of every kind of discharge pattern on each link of each node of network.
6. system as claimed in claim 5 is characterized in that, the compound mode of described combination is: the first information and second information and the 3rd information and the 4th information and the 5th information.
7. system as claimed in claim 6, it is characterized in that the described first information comprises the absolute information that guarantees the information of resource type, high-quality statistic multiplexing resource type, general statistic multiplexing resource type and the type of doing one's best and adopt the priority scheduling method of service of supporting.
8. system as claimed in claim 6 is characterized in that, described mode of reporting and submitting comprises describedly reports and submits the unit initiatively the key-course functional unit reports or described dispensing unit obtains to the inquiry of transport layer functional unit to transmitting.
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| CN101442477B (en) * | 2007-11-19 | 2011-05-18 | 上海未来宽带技术及应用工程研究中心有限公司 | Method for controlling interactive medium quality of IPTV business |
| CN101170497A (en) | 2007-11-20 | 2008-04-30 | 中兴通讯股份有限公司 | Method and device for sending network resource information data |
| CN101577932B (en) * | 2008-01-18 | 2011-06-08 | 华为技术有限公司 | Method and system for realizing transmission service in network of next generation |
| CN101232503B (en) * | 2008-02-22 | 2012-05-23 | 中兴通讯股份有限公司 | Resource allocation method and resource release method |
| CN101355807B (en) * | 2008-08-20 | 2016-08-03 | 中兴通讯股份有限公司 | A kind of feedback method during failure of policy installation |
| JP4592800B2 (en) * | 2009-03-12 | 2010-12-08 | パナソニック株式会社 | Route selection device, route selection method, and program |
| CN102769605B (en) * | 2011-05-05 | 2015-04-22 | 中国移动通信集团设计院有限公司 | Method and apparatus for determining relay circuit |
| CN102624549B (en) * | 2012-03-01 | 2015-04-08 | 华为技术有限公司 | Computing method and computing device for grouped data channel multiplexing degrees |
| EP2822241B1 (en) | 2012-11-19 | 2016-02-10 | Huawei Technologies Co., Ltd. | Packet switching resource allocation method and device |
| CN104243345B (en) * | 2013-06-08 | 2018-05-15 | 中国移动通信集团公司 | A kind of traffic scheduling method based on type of service, system and equipment |
| CN106465085B (en) * | 2014-09-05 | 2020-04-24 | 松下电器（美国）知识产权公司 | Frequency band use information generation and report method, charging method, eNodeB and MME |
| CN106412628B (en) | 2015-07-30 | 2020-07-24 | 华为技术有限公司 | Bandwidth adjusting method and related equipment |
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