CN1157984C - Radio resource planning method based on GPRS service type - Google Patents
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Abstract
The present invention discloses a wireless resource planning method based on a GPRS service type. According to an accessed GPRS service, the method refers to service levels of different services, and obtains the service type of the service and data quantities; according to the data quantities, the method judges the resource demand of the services, obtains the demand of actual channels of the services, and further determines the service quality level provided by the system for the services; according to the requirement of the services, the channels are allocated, and the prior orders of the channels are made. Thus, the present invention has the advantages of good reasonableness and flexibility of system resource planning utilization, and improves the utilization rates of system resources.
Description
(1) technical field:
The present invention relates to the planing method of Radio Resource in a kind of GPRS (GPRS) system.
(2) background technology:
GPRS network is the stacking network that is based upon on GSM (global system for mobile communications) network foundation, for wireless packet data service provides quick access passage.In GPRS network, voice service and data service provide simultaneously, and how according to the distribution of different business reorganization Internet resources, to optimize allocation of resources, the minimizing business influences each other, and improve network performance, and this is the major issue of the equipment optimization and the network planning.Existing GPRS wireless resource allocation methods one is static PDCH configuration and dynamic PDCH (Packet Data Channel) conversion method.Wherein the latter's dynamic PDCH configuration controlling mechanism determines when whether BSC (base station controller) refuse the channel request of PCU to PCU (packet control unit) request TCH (voice channel) and decision BSC.This method is TCH with dynamic PDCH default setting usually, and each sub-district is provided with a counter, and the per minute register is once adjusted.If the TCH number of channel of current free time then adds 1 with register greater than predetermined value, but can not be greater than the maximum of register setting; If the TCH number of channel of current free time then subtracts 1 with register less than predetermined value, but can not be less than the minimum value of register setting.Through after the above-mentioned adjustment if the TCH channel of current free time less than predetermined value, and dynamically the PDCH channel can be with number greater than 0, then BSC is to PCU request TCH channel.BSC at first checks the value of register when receiving the channel request message of PCU, according to the result of register, the channel request of decision BSC flat refusal PCU is still according to the requirement of PCU and current operating position decision the replying PCU of channel.
The method of another kind of GPRS allocation of radio resources is CS (channel coding method) change method.This method relates to four kinds of different encoding schemes: CS1, CS2, CS3 and CS4 (channel coding method 1,2,3 and 4) altogether, the measurement report that it utilizes mobile phone to report, set up the corresponding relation of measurement report and speed, with speed is thresholding, compare with it according to actual speed rate, under certain timer, adjust the transfer encoding mode.It is threshold parameter that the user sets CS change parameter, this parameter comprise CS1 to CS2 running parameter, CS2 to CS3 running parameter, CS3 to CS4 running parameter, CS4 to CS3 running parameter, CS3 to CS2 running parameter, CS2 to the CS1 running parameter, and divide the uplink and downlink direction, the user can select default parameter value or customize based on the sub-district.When PCU judgment data retransmission rate is higher than or is lower than thresholding, will adjust the CS value that current TBF (temporary transient stream of codeblocks) adopts.By the adjustment of coded system, can improve the utilance of PDCH.Because different business has different QOS (service quality) demand, if can determine the QOS demand of different business, in resource allocation, accomplish to shoot the arrow at the target, need.Yet the QOS definition of present GPRS network is also very fuzzy, and PCU is difficult to obtain QOS information accurately, and method for channel allocation to a great extent still blindly.The method of estimating the sub-district PDCH number of channel is:
The static PDCH number in sub-district=
((the carrier frequency sum in (GPRS user's total bandwidth/carrier frequency sum) * sub-district)
/ (IP layer bearer rate when IP layer bearer rate * 20%+CS2 encodes during the CS1 coding
* the static PDCH allocation ratio of * 80%))
Here suppose that the gprs service amount is equally distributed, because static PDCH can not convert TCH to, so, can adopt dynamic PDCH carrying for the burst service amount.Static PDCH allocation ratio is an experience parameter, and the user can be according to the result optimizing configuration of traffic volume measurement in the process of equipment operation, and the quantity of the static PDCH of fine tuning is to obtain best effect.Because this method mainly is the transmission feature by collection, statistics and analysis mobile phone, the estimation that draws its QOS, as the input of channel allocation algorithm, this estimation is inaccurate.
From the above, in the existing wireless resource allocation methods, do not consider the different of type of service and rough, or do not consider QOS the QOS estimation.Different packet traffic channels is set, to legacy network speech capacity, also different to the interference effect of network.If do not consider type of service or inaccurate to the QOS estimation, wireless resource allocation is irrational.In addition, because the existing resources distribution method is not considered the characteristics of different service types, only consider existing voice user busy channel amount, mark off certain time slot and be used for dynamic PDCH configuration, like this, may cause following problems: one, if do not establish fixedly PDCH, the data user may not account for upper signal channel when busy call.Its two, as long as data service is arranged, be regardless of kind, all according to same principle allocated channel, can not improve the validity that channel uses.
(3) summary of the invention:
The object of the present invention is to provide a kind of radio resource planning method based on the gprs service type that can effectively utilize the GPRS network Radio Resource.
For achieving the above object, the radio resource planning method based on the gprs service type provided by the invention comprises:
(1) exports its corresponding IP address according to the gprs service that inserts;
(2), obtain the type of service of described business, and estimate the data volume of described business according to the grade of service of described IP address and different business according to the grade of service of described IP address and different business;
(3) judge the resources requirement of described business according to described data volume, and then obtain the actual channel demand of described business;
(4) type of service and the actual channel demand of the described business that obtains according to above-mentioned steps (2) and step (3), and determine the service quality rating that system provides for described business according to the grade of service of different business;
(5) be described traffic assignments channel and arrangement channel order of priority according to described service quality rating.
For realizing such scheme better, described method also comprises:
The define system grade of service, in order to type of service that obtains described business and the data volume of estimating described business, wherein, setting 1 grade is speech and special site-level, 2 grades is high data volume service level, and 3 grades is middle data volume service level, and 4 grades is the low data bulk service level, 5 grades is the real-time, interactive service level, and 6 grades is other type service level.
According to the system business grade, create the IP address and the type of service table of comparisons, in order to judge its type of service according to the different access service of system.
Create the mapping table of type of service and data volume, in order to judge its data volume size according to the different access service of system.
Create the mapping table of business datum amount and resource requirement, in order to judge its resources requirement according to the data volume of the different access service of system.
The present invention adopts such scheme to carry out the timing of Radio Resource planning branch, according to the gprs service that inserts, the grade of service with reference to different business, obtain the type of service and the data volume of described business, judge the resources requirement of described business according to described data volume, obtain the actual channel demand of described business, and then the service quality rating that provides for described business of definite system, allocated channel and arrange the channel order of priority according to requirements of service, owing to fully taken into account the different access service types of system, and the different service quality requirement of different types of service needs, make the present invention can effectively utilize system resource, system resource is carried out reasonable distribution, improve the efficient that system resource is used.
(4) description of drawings:
Fig. 1 is the functional block diagram of the method for the invention;
Fig. 2 is the physical definition block diagram of the method for the invention;
Fig. 3 is an embodiment of the invention flow chart.
(5) embodiment:
For understanding the present invention in depth, the present invention is described in detail below in conjunction with accompanying drawing.
GPRS is a kind of new business of developing on gsm system at bursts of traffic packet transmission.Owing in gprs system, have speech business and data service simultaneously,, need carry out the dynamic-configuration of Radio Resource according to kind, data volume and the QoS requirement of business for improving utilization ratio of wireless resources.
The user to network service quality be contemplated to be with business be closely-related.If the user is carrying out one-way transmission formula business, as EMAIL (Email), SMS (business management system), care be the data bandwidth that network provides; If the user is carrying out interactive service, as recreation, information inquiry, care then be the time delay of network response.So, weigh the wireless network index, the proportion in the balance quality is continued to optimize to instruct network on the whole.In actual applications, the service quality that provides of gprs system and the service quality of the actual sensation of user still are distinguishing.Whole GPRS network only provides a kind of bearer path of IP bag, entity for the BSS part, it can only see foundation, transmission and the dispose procedure of the TBF (Temporary Block Flow) of one group of IP bag of carrying, and the correlation between the imperceptible different TBF, so, can not reflect the end-to-end service quality that the user feels fully truly based on the statistical indicator of TBF.With the WWW business is example, and TCP is connected with the flow-control mechanism of self, and wireless transmission can cause losing of IP bag usually, and the result is that transmission rate does not increase, and under identical quality of wireless services situation, but the possibility effect is all well and good in the WAP visit.
In traditional allocation of radio resources, can specify the arbitrary time slot in arbitrary sub-district to be used for dynamic PDCH, on the total quantity without limits.Be configured to the time slot of dynamic PDCH, can under the control of PCU, when the speech business demand is arranged, be used as TCH, when not having speech business, be used as PDCH.Also can specify the arbitrary time slot in arbitrary sub-district, be used for static PDCH, on the total quantity also without limits.For ease of the wireless parameter of operator according to this channel group, as frequency reuse, parameter such as frequency hopping whether, compare Radio Resource planning accurately, can also limit specific set of time-slot and be used for dynamic PDCH.As from the foregoing, the allocation of radio resources of existing gprs system is a kind of basic resource allocation policy, and it is simpler to make a strategic decision, and waste of radio resources may be bigger, so its resource allocation methods also leaves bigger room for improvement.
Fig. 1 is the functional block diagram of the method for the invention.Dotted portion is represented four big functional modules among the figure: connecting system module, parsing PS (Packet Service) business module, rank module, resource distribution module, solid line is partly represented the functional entity that the present invention need finish.Close between each module and be, behind the GPRS subscriber access system, attachment systems, resolve the IP address of access service by DNS (name server), according to IP adress analysis business, while data estimator amount size, outgoing traffic type and channel demands, carry out grade of service queuing at last, distributing radio resource.
Above-mentioned module relates to four entities of gprs system, with reference to figure 2.Dotted portion is represented the entity that the present invention is resident among the figure, PCU (packet control unit), SGSN (Serving GPRS Support Node), GGSN (Gateway GPRS Support Node) and BSS (base station sub-system), and solid line is partly represented part of the present invention.GGSN finishes the IP adress analysis by DNS, estimate that the different business data volume reaches the requirement to Radio Resource, class of service, channel request by the transparent PCU that is sent to of SGSN, are realized that in PCU service class queuing and resource occupation distribute, last distribution by BSS executive system resource.
Fig. 3 is an embodiment of the invention flow chart.Implement the present invention according to Fig. 3, in step 1, the GPRS travelling carriage of idle condition is inspected system message on the broadcast channel, can know from system message whether system supports gprs service, if support, travelling carriage is initiated access procedure by sending out " packet channel request message information ", this information comprises the various access styles of indication, and system is according to CS1 and a time gap allocating channel.Behind the gprs service attachment systems that inserts, system exports its corresponding IP address according to the gprs service that inserts; Step 2, system obtain the type of service of described business according to the grade of service of described IP address and different business, and estimate the data volume of described business according to the grade of service of described IP address and different business.For realizing this step, need pre-defined system business grade, in order to type of service that obtains described business and the data volume of estimating described business, wherein, setting 1 grade is speech and special site-level, be limit priority, some reservation ISP have this rank, are convenient to the operation control in resource allocation and the reality like this; 2 grades is high data volume service level; 3 grades is middle data volume service level; 4 grades is the low data bulk service level; 5 grades is the real-time, interactive service level; 6 grades is other type service level.Business is carried out rank divide, purpose is according to different data services, arranges the channel of varying number, and for example the data of some special website can be enjoyed with the same channel allocation right of speech, to establish rational resource occupation.Because can define some Packet Service can the priority allocation channel, in practice, can not be provided with for the static allocation channel, avoid power system capacity to impact, particularly set up the initial stage for gprs system, Packet Service is not that this is a kind of way of effectively utilizing Radio Resource under the very big situation.
In addition, also need, create the IP address and the type of service table of comparisons, in order to judge its type of service according to the different access service of system according to the system business grade.Also need to create the mapping table of type of service and data volume, in order to judge its data volume size according to the different access service of system.For example can be according to existing internet data model, determine mobile office, information service, that FTP transmits data volume is bigger, WWW, e-mail data amount are less.Judge in the process of its type of service at the access service different, also comprise the IP address resolution of carrying out access service by DNS, obtain the domain name addresses of access service and GGSN carries out domain name mapping according to the domain name address process according to system.Described GGSN carries out domain name mapping according to domain name addresses, adopts from right to left recursive mode to carry out.
Step 3 is judged the resources requirement of described business according to described data volume, and then obtains the actual channel demand of described business.Need to create the mapping table of business datum amount and resource requirement, in order to judge its resources requirement according to the data volume of the different access service of system for this reason.The business datum amount is main relevant with number and the coded system of available PDCH.For example when long average out to 200 bytes of IP bag bag, a PDCH pairing IP layer bearer rate under different CS coded systems sees the following form:
| CS-1(Kbps) | CS-2(Kbps) | CS-3(Kbps) | CS-4(Kbps) | |
| IP layer bearer rate | 5.58 | 8.31 | 9.89 | 13.95 |
Data volume also is subjected to the multislot capability of travelling carriage in addition, quality of wireless channel, many-sided influence such as bearer service type.Data volume is big, need radio channel just many, otherwise data volume is little, needs radio channel just few.The relation of channel coding method, data rate and the number of channel is determined, therefore determines the quantity of the Radio Resource of different service needed.For example, for the www business, travelling carriage has 3 time slot binding capacities, then needs 2 ~ 3 time slots to get final product.
Step 4, the type of service and the actual channel demand of the described business that obtains according to above-mentioned steps 2 and step 3, and determine the service quality rating that system provides for described business according to the grade of service of different business.
Different service quality rating is arranged the priority difference of channel, and special website such as public security, government, high paying ISP isopreference level are higher.For this reason can be according to type of service and actual channel demand, and set up a levels of quality of service table according to the grade of service of different business, as:
| Service area | Levels of quality of service |
| www.huawei.com | 1 |
After type of service and channel demands amount are determined, look into table earlier, the business that has in the table, according to the queuing of the service quality in the table, if not definition is sorted according to stock number, resource requirement is big, the rank that sorts height.
Step 5 is described traffic assignments channel and arranges the channel order of priority according to described service quality rating.For example, after service access, pass through BSC, make BSC that at this moment " packet channel request " is considered as " channel request of speech " same treatment, therefore can obtain the channel of priority allocation, guarantee the channel occupancy that this is professional rank 1.
As from the foregoing, the crucial part of the present invention is:
One, carrying out the timing of system resource planning branch, identification gprs service type is carried out the configuration of resource according to different types of service.Utilize GGSN to pass through the DNS name server, adopt recurrence to search, obtain type of service.Adopt the estimation of business datum amount and required Radio Resource, set up the mapping table of type of service and data volume, be sent to PCU with type of service with to radio resource requirements, the definition type of service and the required number of channel provide PCU to be for further processing in information.The GPRS passage is a bearer path, the size of demand depends on data content, different content, the data volume difference is very big, use the asynchronism(-nization) of Internet resources, simultaneously to network performance subjective sensation difference, the present invention will guarantee resource management reasonability and flexibility to the identification of the Packet Service type basis as RRM.
Two, be the different different levels of quality of service of service definition, according to the different service quality requirement distributing system resource and the priority of different business.Some rank data can be passed through BSC like this, make BSC that these data services are equally handled with speech, distribution according to need channel, the resource occupation of the higher business of assurance rank.Different business data traffic difference, it also is different that Radio Resource is required.For example define 1 grade and be the channel priority business, some special website, reservation ISP has this rank.Give BSC with these rank data service loopbacks, make BSC that it is considered as speech and equally handle, guarantee that this part data service takies resource.Because in gprs system, speech and grouped data are shared Radio Resource, during configurating channel, if consider fixing to the gprs service retention capacity, unavoidably the GSM capacity is exerted an influence, adopt the present invention to solve this problem preferably according to the Packet Service Resources allocation of reality.
Claims (7)
1, a kind of radio resource planning method based on the gprs service type comprises:
(1) exports its corresponding IP address according to the gprs service that inserts;
(2), obtain the type of service of described business, and estimate the data volume of described business according to the grade of service of described IP address and different business according to the grade of service of described IP address and different business;
(3) judge the resources requirement of described business according to described data volume, and then obtain the actual channel demand of described business;
(4) type of service and the actual channel demand of the described business that obtains according to above-mentioned steps (2) and step (3), and determine the service quality rating that system provides for described business according to the grade of service of different business;
(5) be described traffic assignments channel and arrangement channel order of priority according to described service quality rating.
2, radio resource planning method according to claim 1, it is characterized in that, this method also comprises: the define system grade of service, in order to type of service that obtains described business and the data volume of estimating described business, wherein, setting 1 grade is speech and special site-level, 2 grades is high data volume service level, and 3 grades is middle data volume service level, and 4 grades is the low data bulk service level, 5 grades is the real-time, interactive service level, and 6 grades is other type service level.
3, radio resource planning method according to claim 2 is characterized in that, this method also comprises: according to the system business grade, create the IP address and the type of service table of comparisons, in order to judge its type of service according to the grade of service of IP address and different business.
4, radio resource planning method according to claim 3 is characterized in that, this method also comprises: create the mapping table of type of service and data volume, in order to judge its data volume size according to the grade of service of IP address and different business.
5, radio resource planning method according to claim 4 is characterized in that, this method also comprises: create the mapping table of business datum amount and resource requirement, in order to judge its resources requirement according to the data volume of business.
6, according to claim 1,2,3,4 or 5 described radio resource planning methods, it is characterized in that: judging according to the grade of service of IP address and different business in the process of its type of service, comprising that also the IP address resolution of carrying out access service by DNS obtains the domain name addresses of access service and GGSN carries out domain name mapping according to the domain name address process.
7, radio resource planning method according to claim 6 is characterized in that: described GGSN carries out domain name mapping according to domain name addresses, adopts from right to left recursive mode to carry out.
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| CN100421514C (en) * | 2005-04-30 | 2008-09-24 | 中国移动通信集团公司 | Method for distributing block domain data service radio channels |
| CN100411462C (en) * | 2005-08-15 | 2008-08-13 | 华为技术有限公司 | Transmission resource distribution method and system providing multiple kinds of transmission resource |
| KR101084142B1 (en) | 2005-08-25 | 2011-11-17 | 엘지전자 주식회사 | Method for transmitting and receiving data on downlink shared channel |
| ES2397379T3 (en) * | 2006-04-21 | 2013-03-06 | Huawei Technologies Co., Ltd. | A method, device and system for channel configuration |
| CN101064954B (en) * | 2006-04-30 | 2011-08-10 | 华为技术有限公司 | Channel configuring method |
| CN100466542C (en) * | 2006-06-30 | 2009-03-04 | 华为技术有限公司 | Service gradation based loss distribution method |
| US20090265450A1 (en) * | 2008-04-17 | 2009-10-22 | Darren Helmer | Method and apparatus for managing computing resources of management systems |
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| CN102083215B (en) * | 2009-11-30 | 2014-05-07 | 中国移动通信集团吉林有限公司 | Packet data channel configuring method and device |
| CN102238149A (en) | 2010-05-05 | 2011-11-09 | 华为技术有限公司 | Method, device and system for terminal to access to services |
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| CN103327625A (en) * | 2013-05-24 | 2013-09-25 | 中国联合网络通信集团有限公司 | Method and device for determining occupied service radio resources |
| CN107919975B (en) * | 2016-10-09 | 2022-06-03 | 中兴通讯股份有限公司 | Business resource allocation method and device |
| WO2018137209A1 (en) | 2017-01-25 | 2018-08-02 | 华为技术有限公司 | Service data transmission method, first communication node and base station |
| CN113939029A (en) * | 2021-09-22 | 2022-01-14 | 中国联合网络通信集团有限公司 | Method, device and equipment for generating network slice and storage medium |
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