CN1529449A - Method for realizing pocket data business service quality of CDMA zooo system - Google Patents
Method for realizing pocket data business service quality of CDMA zooo system Download PDFInfo
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Abstract
The system comprises at least one base station and at least one mobile station. The method includes following steps: (1) based on different needs of users' applications, classes of QoS is divided, and QoS parameters is determined; (2) QoS parameters transmission and negotiation is carried out between the said base station and the mobile station; (3) system resources are distributed based on QoS parameters of users' applications. User with higher QoS class will obtain more system resources. Comparing with prior art, the invention provides advantages as following: system resources acquires full utilization; based on characters of different user's application, corresponding provision including bandwidth, time delay, dithering and rate of loss of data is supplied so as to raise users' satisfaction. The method is applicable to packet data service in third generation mobile communication.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the method that a kind of CDMA2000 system's Packet data service service quality (QoS) realizes, this method also is applicable to other 3G (Third Generation) Moblie (3G) system Packet data service.
Background technology
The CDMA2000 system more with its outstanding support to high-speed data service, becomes one of candidate scheme of 3G (Third Generation) Moblie except characteristics with general cdma system (as: big capacity, antijamming capability are strong, good confidentiality etc.).In CDMA2000 1x (phase I) Release 0 agreement, the highest speed that can support 163.2kbps is more supported up to the bandwidth more than the 2Mbps in up-to-date EVDO (Evolution DataOnly) standard.CDMA2000 becomes rich and varied to the application that the support of high-speed data service makes the user to obtain, and comprising video conference, online request, web page browsing is downloaded and Email or the like.Use at these dissimilar users, two problems are arranged, and we must consider and propose perfect solution.At first, the property difference that these users use is very big, for bandwidth, time delay, delay variation and data loss rate distinct requirement is arranged, and requires to have high bandwidth, minimum time delay such as video conference, minimum delay variation, loose relatively data loss rate; Yet, download require uncertain bandwidth, can be bigger time delay, almost delay variation is not required, but very low data loss rate must be arranged.Secondly, in these business, except Streaming Medias such as video conference and online request continued transmission, other most of business all had the characteristic of burst, very big data volume is promptly arranged in a short period of time, in long time, almost do not have transfer of data then again.Consider above 2 points, system must provide the service of different brackets according to the different demands that the user uses, and realizes the mapping of user's request to network capabilities, utilizes system resource as far as possible fully, Here it is QoS (service quality).
Along with the develop rapidly of 3G in the whole world, the QoS problem has become one of key subject of 3G.3GPP2 has proposed the relevant specification and requirement of QoS at present.But so far, the QoS implementation method and the scheme that also are not applied to real system are suggested.
Summary of the invention
Technical problem to be solved by this invention is: according to the specification and requirement of 3GPP2 to QoS, at CDMA2000 commercial system and other 3G (Third Generation) Moblie (3G) system, the implementation method of a kind of Packet data service QoS is provided, the different demands that system is used according to the user provide the service of different brackets, realize the mapping of user's request, make full use of system resource to network capabilities.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
The method that a kind of CDMA2000 system Packet data service service quality realizes, described system comprises at least one base station and at least one travelling carriage, said method comprising the steps of:
A), the different demands used according to the user carry out the QoS rank and divide, and determine qos parameter;
B), between described base station and described travelling carriage, carry out described qos parameter transmission and negotiation, set up described qos parameter transmission and negotiation mechanism;
C), the qos parameter distributing system resource used according to the user of system, high user distributes more resource for the QoS rank, low user distributes less resource for the QoS rank.
Described method, wherein: steps A) described levels of quality of service is divided into a plurality of ranks from high to low, and each grade comprises one group of qos parameter that is mapped as the system service ability by user's QoS request.
Described method, wherein: described a plurality of ranks are divided into 4 grades, and described qos parameter comprises: bandwidth, time delay, shake, loss of traffic.
Described method, wherein: steps A in CDMA2000 1x system) described levels of quality of service is divided into 5 grades, is from high to low: dialogue, stream, mutual, download, background; The qos parameter of each grade comprises: forward complementary channel velocity, reverse supplementary channel rate, forward complement channel dispatching priority.
Described method, wherein: described step B) mechanism of described qos parameter transmission and negotiation has comprised following step:
B1), described travelling carriage working a request default service configuration related with business option when exhaling, the perhaps configuration that please look for novelty in the Traffic Channel operating process has comprised parameter and configuration that QoS is correlated with in the described business configuration;
B2), the business configuration of described travelling carriage request accepted by the base station, then brings into use new configuration; If the configurating base station of described travelling carriage request is not accepted the business configuration that described base station can be refused or be proposed to substitute;
B3), the described substitution service configuration that proposes of described base station, another configuration can be accepted, refuses or be proposed to described travelling carriage;
B4), when described travelling carriage and described base station find a common business configuration of accepting or both to refuse configuration that the other side proposes, service negotiation finishes.
Described method, wherein: step C) described system resource comprises: power resource, walsh code, time slot.
Described method, wherein: in CDMA2000 1x system, step C) described method comprises following processing:
A), when the request of setting up of forward direction complement channel arrives, judge whether it is a forward complement channel continuity request, is not the continuity request, then enters newly-built forward complement channel program; Be the continuity request, then ask the qos parameter of transmission whether to change and judge,, then need application again to set up forward complement channel, enter newly-built forward complement channel program if described qos parameter changes to described forward complement channel continuity; Described qos parameter does not change, and then enters forward complement channel and transmits request handler continuously;
B), described newly-built forward complement channel program, at first carry out the forward complement channel resource allocation, if forward complement channel resource allocation success is just added scheduling events in scheduling queue, successfully return; If forward complement channel resource allocation failure, and failure cause is the forward complement channel inadequate resource, but search then whether the predetermined channel consistent with the forward complement channel request is arranged;
C), if described predetermined channel finds, and heavy instruction time be exactly present, then begin resource allocation immediately; If described predetermined channel finds, but described heavy instruction time is not now, then specifies and reaffirms and please return the time;
D), if described predetermined channel do not find, carry out service negotiation, solicit the user and whether can reduce the QoS rank, if can, enter newly-built forward complement channel program by new qos parameter; Cannot, then resource allocation is failed and is returned.
Described method, wherein: described forward complement channel resource comprises Wal time-code, Channel Elements, power resource.
Described method, wherein: the described forward complement channel of step a) transmits request handler continuously and comprises:
A1), obtain the residing state of current forward complement channel;
A2), judge whether the residing state of described current forward complement channel is in forward complement channel and transmits the application period continuously, if spend the period of application, this forward direction complement channel discharges, makes mistakes and returns; If before the application period, file an application, then be required to delay application, return the time of delaying; If be in the application period, then forward complement channel continuity distributes respective resources.
Described method, wherein: the described forward complement channel resource allocation process of step b) module comprises:
B1), call and obtain the maximum rate function, obtain and satisfy the maximum rate that qos requirement and base station can be supported;
B2), successfully after obtaining described maximum rate, allocated channel unit, distribution Walsh resource, the scheduling events that adds FSCH is to scheduling queue;
B3), if successfully do not obtain described maximum rate, then return failure.
Described method, wherein: described obtaining satisfied the maximum rate that qos requirement and base station can support and comprised following processing:
B11), obtain the minimum speed limit of qos requirement and obtain the maximum rate that Channel Elements allows,
B12), if the maximum rate that described Channel Elements allows more than or equal to the minimum speed limit of qos requirement, the maximum rate that resource allows when obtaining drawing together the Wal; Otherwise failure is returned;
B13), if the described maximum rate that resource allows when drawing together the Wal more than or equal to the minimum speed limit of qos requirement, obtains the maximum rate that power allows; Otherwise failure is returned;
B14), if the maximum rate that described power allows more than or equal to the minimum speed limit of qos requirement, the reckling in the maximum rate that successful Return Channel unit allows, resource allows when drawing together the Wal maximum rate, the maximum rate that power allows; Otherwise failure is returned.
Described method, wherein: but whether described the searching of step b) has the flow process of the predetermined channel consistent with the forward complement channel request to comprise:
B4), the whole forward complement channel table of scanning, seek to satisfy: resource under new transmission solicited status, be not released, transmit duration be not endless, satisfy the QoS rate requirement and do not arrive the record of maximum predesignated subscriber's said conditions,
B5), in the described record that satisfies condition if the record that is in new transmission solicited status is arranged, then directly return this record, the beginning preemption processes; If be not in the record of new transmission solicited status, then return a highest record of speed in the minimum record of pre-determined number;
B6), if do not search out the record that satisfies described condition, then failure is returned.
Described method, wherein: the following principle setting of described forward complement channel transmission duration foundation:
---with
As the transmission duration according to a preliminary estimate;
---the transmission duration that estimates, as greater than maximum, then press the maximum setting; Less than minimum value, by the minimum value setting;
---the maximum of described transmission duration is set to 1110, equals 256 * 20ms; The minimum value of described transmission duration is set according to QoS rank difference: dialogue, stream rank are set to 1101, equal 128 * 20ms; Alternately, download, background rank be set to 1011, equals 64 * 20ms;
---the described transmission duration that estimates is if between maximum and minimum value, then according to following table, seek one the most approaching and greater than the design load of estimated value with estimated value:
| The complement channel transmission duration value of setting | Transmission duration (unit: 20ms) |
| ??????0001 | ??????1 |
| ??????0010 | ??????2 |
| ??????0011 | ??????3 |
| ??????0100 | ??????4 |
| ??????0101 | ??????5 |
| ??????0110 | ??????6 |
| ??????0111 | ??????7 |
| ??????1000 | ??????8 |
| ??????1001 | ??????16 |
| ??????1010 | ??????32 |
| ??????1011 | ??????64 |
| ??????1100 | ??????96 |
| ??????1101 | ??????128 |
| ??????1110 | ??????256 |
| ??????1111 | Keep |
Described method, wherein: described forward complement channel maximum resource reservation number of times and number of times increase the following principle setting of step-length foundation: described forward complement channel maximum resource reservation number of times equals 3; It is different and set according to the QoS rank that described number of times increases step-length: dialogue, stream rank are set to 2, and mutual, download, background rank are set to 1; The reservation number of times of described complement channel is initially 0, and complement channel reservation number of times equals to preengage number of times and adds that number of times increases step-length when having the user to preengage.
Described method, wherein: the maximum transmission continuously of described forward complement channel request times is different and different according to the QoS rank, by described 5 grades of the backgrounds of talking with, is set to 5,4,3,2,1 respectively.
Beneficial effect of the present invention is: the implementation method of the CDMA2000 Packet data service QoS of system of the present invention, because the different demands that employing is used according to the user are divided into groups, between base station and travelling carriage, set up qos parameter transmission and negotiation mechanism, and, make that system resource has obtained to utilize more fully according to the distributing system resource that requires of user's application; Owing to realized providing the guarantee of corresponding bandwidth, time delay, shake and data loss rate, also increased user's satisfaction according to the characteristic of different user application.
Description of drawings
The QoS method flow diagram that Fig. 1 proposes for the present invention.
The QoS method that Fig. 2 proposes for the present invention in CDMA2000 1x system, realize a kind of flow process.
Fig. 3 is the flow process of FSCH resource allocation process module among Fig. 1.
Fig. 4 is the detailed process of complementary channel velocity allocating (GetHighestRate () function among Fig. 2).
Fig. 5 is for searching the flow process of the subscribed channel consistent with forward complement channel (FSCH) request among Fig. 1.
Fig. 6 is the continuous transmission process module of a FSCH flow process among Fig. 1.
Fig. 7 is FSCH scheduling sequential schematic diagram.
Embodiment
Below in conjunction with accompanying drawing,, will make the present invention make technical scheme and effect is apparent by detailed description to preferred embodiment of the present invention.
Referring to Fig. 1, creation point of the present invention is embodied in following several respects:
One, the QoS rank is divided
QoS provides such ability for user and system operator, and the business of different stage is provided at the application demand of different user.According to the different demands of using application is divided into several groups of similar features are arranged.Each group has the configuration file of an association that the scope of the service that can provide has been provided.The basic idea of QoS is to make Virtual network operator set up different service class to adapt to the terminal use to the different requirements of business throughput, traffic lost and response time, charges to the user according to the actual service class that provides simultaneously.
Specifically, QoS refers to that operator is divided into terminal use's application request the ability of 4 classes service: bandwidth, time delay, shake, and loss of traffic.Wherein:
---bandwidth refers to that system provides necessary capacity to support a kind of ability of user's application throughput demand.
---time delay refers to that sending one from sending node is grouped into the time that receiving node experiences.
---shake is that grouping arrives a kind of tolerance that the time interval changes to receiving end.When usually occurring in same shared link of grouping competition.
---loss of traffic is because the grouping that mistake or network congestion cause abandons.
According to aforesaid QoS definition, the QoS rank can be by dividing as the mode of following table 1:
| The QoS rank | Service attribute | |||
| Bandwidth | Time delay | Shake | Loss of traffic | |
| QoS rank 1 | High | Extremely low | Extremely low | Low |
| QoS rank 2 | Very high | Low | Low | Lower |
| QoS rank 3 | In | In | In | In |
| QoS rank 4 | Low | High | High | High |
Table 1
Two, between base station and travelling carriage, carry out qos parameter transmission and negotiation
Step below the mechanism of qos parameter transmission between base station and the travelling carriage and negotiation has comprised:
1. travelling carriage can a request default service related with business option disposes the also configuration that can please look for novelty in the Traffic Channel operating process when exhaling rising.Comprised relevant parameter and the configuration of QoS in the aforesaid business configuration.
2. the business configuration of travelling carriage request is accepted by the base station, then brings into use new configuration.
3. if the configurating base station of travelling carriage request is not accepted, the business configuration that the base station can be refused or be proposed to substitute.The substitution service configuration that the base station proposes, another configuration can be accepted, refuses or be proposed to travelling carriage.
4. when travelling carriage and base station found a common business configuration of accepting or both to refuse configuration that the other side proposes, service negotiation finished.
The mechanism of a kind of qos parameter transmission and negotiation is provided between base station and travelling carriage by aforesaid service negotiation process.
Three, based on the system resource allocation strategy of QoS
In " division of QoS rank ", mentioned the ability of this 4 class service of bandwidth, time delay, shake and loss of traffic, realized four above-mentioned class service ability are provided and control the key point that Packet data service QoS just realizes.And providing and controlling of four class service ability is that resource allocation policy by based on QoS is realized.Resource relevant with high-speed packet data service in the cdma2000 comprises: power resource, walsh code (Walsh Code), time slot etc.
In cdma2000, because the wireless air resource is very limited (except the EVDO system, the EVDO system adopts time division way, always with maximum power transmission), as preceding reverse capacity (power) resource, be directly connected to the capacity in the sub-district, and high speed packet data channel need be carried out high rate data transmission, for the voice service channel, need take a large amount of power resources, also promptly need to take a large amount of air capacity.In addition, when edge or the environment more abominable position of travelling carriage in the sub-district, during the application high-speed packet data service, if distribute to the bigger transmission rate of this user, to need very large through-put power so, account for the air capacity of whole sub-district possibly,, need control and dispatch the power that high speed packet data channel takies so effectively utilize aerial capacity in order to guarantee.
In the CDMA2000 system, use the Walsh function to carry out spread spectrum.Distribute the walshcode of higher-order to give the higher Packet Data Channel of speed.Owing to be that Walsh Code is limited in cdma2000, support the speech capacity of sub-district and HRPD (high rate packet data) as much as possible to call out to greatest extent in order to use limited Walsh Code resource, also must carry out reasonable distribution to the Walsh resource.
In CDMA2000 EVDO system, high speed data channels is a time division way, so the distribution of time interval resource and scheduling must provide and control the ability of this 4 class service of bandwidth, time delay, shake and loss of traffic.
Based on the core content of the system resource allocation strategy of QoS is exactly to form a kind of mapping relations between the QoS that uses of service ability (system) in system and user.Be thereby that system provides service preferably by distributing more resource to use to it for the higher user of QoS rank; Otherwise the less resource of system assignment uses for the lower user of QoS rank.
A kind of implementation of QoS method in CDMA2000 1x system that proposes at the present invention is explained in detail below.
The at first requirement of the QoS phase I that proposes according to 3GPP2, the QoS rank that the user is used is divided into 5 grades, is from high to low: dialogue, stream, mutual, download, background, the QoS level definition sees the following form 2:
| Rank | Service route | Information rate (kbps) | F-SCH speed | R-SCH speed | Average delay | The forward direction dispatching priority | The typical case uses |
| Dialogue (1) | Two-way | ????50-80 | ????8x | ??8x | ??≤ ??100ms | 1 (the highest) | Video telephone |
| Stream (2) | Descending | ????50-140 | ????16x、8x | ??-- | ??≤1s | ??2 | Video request program |
| (3) alternately | Two-way | ????30-60 | ????4x | ??1x | ??≤5s | ??3 | Web page browsing |
| Download (4) | Descending | ????20-140 | ????≥2x | ??-- | ??-- | ??4 | File is downloaded |
| Background (5) | Indefinite | ????≥10 | ????≥1x | ??≥1x | ??-- | ??5 |
Table 2
In the table 2: R-SCH is a reverse complemental channel.
In CDMA2000 1x system, carry out following processing according to flow chart shown in Figure 2:
Transmit up qos parameter when forward direction complement channel (FSCH) foundation request arrival and by service negotiation message,
The first step: judging whether to be FSCH continuity request, is not then to enter right branch (newly-built FSCH branch); Be then to do further judgement, need application again to set up FSCH if qos parameter changes, enter right branch, qos parameter does not change, and enters left branch (FSCH continues branch).
Second step: enter left branch execution FSCH and transmit request processing flow (referring to Fig. 6) continuously.
The 3rd step: enter right branch, at first carry out FSCH resource allocation (referring to flow process shown in Figure 3), said FSCH resource comprises: Channel Elements (CE), Walsh resource, power resource.A crucial step of FSCH resource allocation is to call to obtain the maximum rate function---GetHighestRate () is met the maximum rate (referring to flow process shown in Figure 4) that can support in qos requirement and base station.If the resource allocation success is just added scheduling events in scheduling queue, successfully return.If resource allocation failure, and failure cause is CE deficiency or Walsh deficiency or underpower, just watches whether the FSCH that can be scheduled to is arranged.
The 4th step: carry out and search the subscribed FSCH flow process (referring to Fig. 5) of echoing requirement.Can subscribe FSCH if find, in two kinds of situation: 1) be exactly now heavy instruction time, begins resource allocation immediately, and resource allocation comprises: at first discharge former FSCH resource, call FSCH resource allocation function then and carry out resource allocation; 2) heavily instruction time is not now, specifies the time of being redirected to return.If do not find, be that current SCH request not only can't newly-built FSCH but also can not find the FSCH that can subscribe, carry out service negotiation this moment, solicits the user and whether can reduce the QoS rank, if of course, reenter newly-built FSCH flow process (right branch) by new qos parameter; Cannot, then return the resource allocation failure.
In above-mentioned realization flow, the service negotiation message that can use in CDMA2000 1x Release 0 agreement all about the transmission and the negotiation of qos parameter realizes.
FSCH resource allocation process module shown in Figure 3 is at first called GetHighestRate (), obtains and satisfies the maximum rate that qos requirement and base station can be supported, its flow process such as Fig. 4; After successfully obtaining maximum rate, allocated channel unit (CE); Distribute the Walsh resource; The scheduling events that adds FSCH at last is to scheduling queue (scheduling is based on the priority scheduling algorithm of QoS).
As seen, in the FSCH dispatching algorithm, at the afterbody of a FSCH transmission duration, the application of FSCH has been divided into continuous transmission request time slot and two time slots of new transmission request time slot from Fig. 7 FSCH scheduling sequential schematic diagram.Transmission request time slot is the permission time slot that same user applies continues transmission FSCH continuously, and the application that new transmission request time slot is new FSCH user applies allows time slot.If in transmitting the request time slot continuously, a continuous transmission is asked successfully, then puts busy flag position=1, refuses the newly-built request of other FSCH.If in new transmission request time slot, and busy flag position=0, one a newly-built FSCH ask successfully, and then Resources allocation is given newly and asked, and discharges former FSCH.
Shown in Figure 5 searches and the consistent channel the subscribed flow process of FSCH request, at first scan whole FSCH table, check whether the FSCH record that satisfies following condition is arranged: be in same carrier frequency with the request user, resource is not released under new transmission solicited status, the transmission duration is not an endless, satisfy the QoS rate requirement, and predesignated subscriber's number of arrival maximum, in meeting the record of above condition, if have the record that is in new transmission solicited status just directly to return this record, just do not return a highest record of speed in the minimum record of pre-determined number if be in the record of new transmission solicited status; Just do not return failure if meet the record of above-mentioned condition.
In FSCH continuity request shown in Figure 6 was handled, a crucial step was exactly obtaining of FSCH current state and judges.Flow process obtains the FSCH state earlier, again by judge determining that the FSCH current state belongs to any in the three state for 2 times.Handle as follows respectively at 3 kinds of different conditions: the application time too early heavily indicated and delayed application before transmitting request time continuously state 1---the application time; State 2---transmit request time continuously and begin, do not seize as yet and discharge because of new transmission request, the time just in time, Resources allocation at once; State 3---this FSCH discharges, and is too late.
The realization of QoS method aforesaid execution mode in CDMA2000 1x system that the present invention proposes also comprises the setting based on several key parameters of the FSCH priority scheduling algorithm of QoS:
1, transmission duration (Duration) setting principle:
1) with
As duration according to a preliminary estimate;
2) duration that estimates as greater than maximum, then presses the maximum setting; Less than minimum value, by the minimum value setting;
3) duration that estimates is as between maximum, the minimum value, then with reference to following table 3, seek one the most approaching and with estimated value greater than the value of setting of estimated value;
The complement channel transmission duration setting of table 3 IS2000 agreement regulation
| The SCH_Duration value of setting | Duration (unit: 20ms) |
| ??0001 | ????1 |
| ??0010 | ????2 |
| ??0011 | ????3 |
| ??0100 | ????4 |
| ??0101 | ????5 |
| ??0110 | ????6 |
| ??0111 | ????7 |
| ??1000 | ????8 |
| ??1001 | ????16 |
| ??1010 | ????32 |
| ??1011 | ????64 |
| ??1100 | ????96 |
| ??1101 | ????128 |
| ??1110 | ????256 |
| ??1111 | Keep |
4) the maximum MaxDuration of duration is set to 1110 by agreement, i.e. 256 * 20ms;
5) the minimum M inDuration of duration is provided with as table 4 according to the QoS rank;
The SCH minimum transfer duration that table 4 the present invention proposes is provided with.
| The QoS rank | The MinDuration value of setting | MinDuration (unit: 20ms) |
| Dialogue, stream | 1101 | ?128 |
| Download alternately,, background | 1011 | ?64 |
6) to specific occasion, user, may use endless duration, make the user occupy a SCH all the time and finish release to transmission, be set to 1111 (0x0f), duration endless this moment.
FSCH maximum resource reservation number of times (MaxRRCount) and number of times increase step-length (CountStep) setting principle:
1)MaxRRCount＝3；
2) SCH reservation number of times RRCount is initially 0, when having the user to preengage, and RRCount=RRCount+CountStep;
3) CountStep is provided with as table 5 according to the QoS rank.
The increase step-length of the FSCH reservation number of times that table 5 the present invention proposes is provided with.
| The QoS rank | CountStep |
| Dialogue, stream | 2 |
| Download alternately,, background | 1 |
The maximum transmission continuously of FSCH request times setting principle:
Be provided with as table 6 according to the QoS rank.
The setting of the maximum transmission continuously of the FSCH that table 6 the present invention proposes request times.
| The QoS rank | MaxContinueC ount |
| Dialogue | 5 |
| Stream | 4 |
| Alternately | 2 |
| Download | 2 |
| Background | 1 |
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (15)
1, the method that realizes of a kind of CDMA2000 system Packet data service service quality, described system comprises at least one base station and at least one travelling carriage, it is characterized in that: said method comprising the steps of:
A), the different demands used according to the user carry out the QoS rank and divide, and determine qos parameter;
B), between described base station and described travelling carriage, carry out described qos parameter transmission and negotiation, set up described qos parameter transmission and negotiation mechanism;
C), the qos parameter distributing system resource used according to the user of system, high user distributes more resource for the QoS rank, low user distributes less resource for the QoS rank.
2, method according to claim 1 is characterized in that: steps A) described levels of quality of service is divided into a plurality of ranks from high to low, and each grade comprises one group of qos parameter that is mapped as the system service ability by user's QoS request.
3, method according to claim 2 is characterized in that: described a plurality of ranks are divided into 4 grades, and described qos parameter comprises: bandwidth, time delay, shake, loss of traffic.
4, method according to claim 2 is characterized in that: steps A in CDMA2000 1x system) described levels of quality of service is divided into 5 grades, is from high to low: dialogue, stream, mutual, download, background; The qos parameter of each grade comprises: forward complementary channel velocity, reverse supplementary channel rate, forward complement channel dispatching priority.
5, method according to claim 1 is characterized in that: described step B) mechanism of described qos parameter transmission and negotiation has comprised following step:
B1), described travelling carriage working a request default service configuration related with business option when exhaling, the perhaps configuration that please look for novelty in the Traffic Channel operating process has comprised parameter and configuration that QoS is correlated with in the described business configuration;
B2), the business configuration of described travelling carriage request accepted by the base station, then brings into use new configuration; If the configurating base station of described travelling carriage request is not accepted the business configuration that described base station can be refused or be proposed to substitute;
B3), the described substitution service configuration that proposes of described base station, another configuration can be accepted, refuses or be proposed to described travelling carriage;
B4), when described travelling carriage and described base station find a common business configuration of accepting or both to refuse configuration that the other side proposes, service negotiation finishes.
6, method according to claim 1 is characterized in that: step C) described system resource comprises: power resource, walsh code, time slot.
7, method according to claim 1 is characterized in that: in CDMA2000 1x system, step C) described method comprises following processing:
A), when the request of setting up of forward direction complement channel arrives, judge whether it is a forward complement channel continuity request, is not the continuity request, then enters newly-built forward complement channel program; Be the continuity request, then ask the qos parameter of transmission whether to change and judge,, then need application again to set up forward complement channel, enter newly-built forward complement channel program if described qos parameter changes to described forward complement channel continuity; Described qos parameter does not change, and then enters forward complement channel and transmits request handler continuously;
B), described newly-built forward complement channel program, at first carry out the forward complement channel resource allocation, if forward complement channel resource allocation success is just added scheduling events in scheduling queue, successfully return; If forward complement channel resource allocation failure, and failure cause is the forward complement channel inadequate resource, but search then whether the predetermined channel consistent with the forward complement channel request is arranged;
C), if described predetermined channel finds, and heavy instruction time be exactly present, then begin resource allocation immediately; If described predetermined channel finds, but described heavy instruction time is not now, then specifies and reaffirms and please return the time;
D), if described predetermined channel do not find, carry out service negotiation, solicit the user and whether can reduce the QoS rank, if can, enter newly-built forward complement channel program by new qos parameter; Cannot, then resource allocation is failed and is returned.
8, method according to claim 7 is characterized in that: described forward complement channel resource comprises Wal time-code, Channel Elements, power resource.
9, method according to claim 7 is characterized in that: the described forward complement channel of step a) transmits request handler continuously and comprises:
A1), obtain the residing state of current forward complement channel;
A2), judge whether the residing state of described current forward complement channel is in forward complement channel and transmits the application period continuously, if spend the period of application, this forward direction complement channel discharges, makes mistakes and returns; If before the application period, file an application, then be required to delay application, return the time of delaying; If be in the application period, then forward complement channel continuity distributes respective resources.
10, method according to claim 8 is characterized in that: the described forward complement channel resource allocation process of step b) module comprises:
B1), call and obtain the maximum rate function, obtain and satisfy the maximum rate that qos requirement and base station can be supported;
B2), successfully after obtaining described maximum rate, allocated channel unit, distribution Walsh resource, the scheduling events that adds FSCH is to scheduling queue;
B3), if successfully do not obtain described maximum rate, then return failure.
11, method according to claim 10 is characterized in that: described obtaining satisfied the maximum rate that qos requirement and base station can support and comprised following processing:
B11), obtain the minimum speed limit of qos requirement and obtain the maximum rate that Channel Elements allows,
B12), if the maximum rate that described Channel Elements allows more than or equal to the minimum speed limit of qos requirement, the maximum rate that resource allows when obtaining drawing together the Wal; Otherwise failure is returned;
B13), if the described maximum rate that resource allows when drawing together the Wal more than or equal to the minimum speed limit of qos requirement, obtains the maximum rate that power allows; Otherwise failure is returned;
B14), if the maximum rate that described power allows more than or equal to the minimum speed limit of qos requirement, the reckling in the maximum rate that successful Return Channel unit allows, resource allows when drawing together the Wal maximum rate, the maximum rate that power allows; Otherwise failure is returned.
12, method according to claim 7 is characterized in that: but whether described the searching of step b) has the flow process of the predetermined channel consistent with the forward complement channel request to comprise:
B4), the whole forward complement channel table of scanning, seek to satisfy: resource under new transmission solicited status, be not released, transmit duration be not endless, satisfy the QoS rate requirement and do not arrive the record of maximum predesignated subscriber's said conditions,
B5), in the described record that satisfies condition if the record that is in new transmission solicited status is arranged, then directly return this record, the beginning preemption processes; If be not in the record of new transmission solicited status, then return a highest record of speed in the minimum record of pre-determined number;
B6), if do not search out the record that satisfies described condition, then failure is returned.
13, according to the described method of each claim of claim 7 to 12, it is characterized in that:
The following principle setting of described forward complement channel transmission duration foundation:
---with
As the transmission duration according to a preliminary estimate;
---the transmission duration that estimates, as greater than maximum, then press the maximum setting; Less than minimum value, by the minimum value setting;
---the maximum of described transmission duration is set to 1110, equals 256 * 20ms; The minimum value of described transmission duration is set according to QoS rank difference: dialogue, stream rank are set to 1101, equal 128 * 20ms; Alternately, download, background rank be set to 1011, equals 64 * 20ms;
---the described transmission duration that estimates is if between maximum and minimum value, then according to following table, seek one the most approaching and greater than the design load of estimated value with estimated value:
The complement channel transmission duration value of setting Transmission duration (unit: 20ms)
0001 1
????0010 ????2
????0011 ????3
????0100 ????4
????0101 ????5
????0110 ????6
????0111 ????7
????1000 ????8
????1001 ????16
????1010 ????32
????1011 ????64
????1100 ????96
????1101 ????128
????1110 ????256
????1111 Keep
14, according to the described method of each claim of claim 7 to 12, it is characterized in that: described forward complement channel maximum resource reservation number of times and number of times increase the following principle setting of step-length foundation: described forward complement channel maximum resource reservation number of times equals 3; It is different and set according to the QoS rank that described number of times increases step-length: dialogue, stream rank are set to 2, and mutual, download, background rank are set to 1; The reservation number of times of described complement channel is initially 0, and complement channel reservation number of times equals to preengage number of times and adds that number of times increases step-length when having the user to preengage.
15, according to the described method of each claim of claim 7 to 12, it is characterized in that: the maximum transmission continuously of described forward complement channel request times is different and different according to the QoS rank, by described 5 grades of the backgrounds of talking with, be set to 5,4,3,2,1 respectively.
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