CN100401834C - Method for controlling the call admission for high speed down going packet access system - Google Patents

Method for controlling the call admission for high speed down going packet access system Download PDF

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CN100401834C
CN100401834C CNB200410009659XA CN200410009659A CN100401834C CN 100401834 C CN100401834 C CN 100401834C CN B200410009659X A CNB200410009659X A CN B200410009659XA CN 200410009659 A CN200410009659 A CN 200410009659A CN 100401834 C CN100401834 C CN 100401834C
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request
service
business
service request
bit rate
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CN1761351A (en
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吴小斌
柯雅珠
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ZTE Corp
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ZTE Corp
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Abstract

The present invention discloses a calling admission control method of a high-rate downlink grouping access system, which comprises the following steps: step 1, the prearrangement of relative parameters of the admission control of flow type services and nonreai-time services is carried out; step 2, the public measurement of a base station of the system is started; step 3, after the system receives a calling service request, whether a current subzone is in the state of overload is judged, the calling request is rejected if the current subzone is in the state of overload, the admission control process of the calling service request is ended, or else the step 4 is carried out; step 4, whether the calling request is a conversation service is judged, the admission control strategy of the conversation service is carried out on a special channel and the conversation service is ended if the calling request is the conversation service, or else the step 5 is carried out; step 5, the admission control strategy of the flow type services and the nonreai-time services is carried out a high-rate downlink sharing channel. The present invention carries out corresponding admission control strategies according to service types, and enhances the resource utilization rate of the system, and the present invention is easily realized.

Description

A kind of call connection control method of high speed descending grouping access system
Technical field
The present invention relates to a kind of downlink call acceptance controlling method of and non-real-time service professional of radio honeycomb communication system, relate in particular to the downlink call acceptance controlling method of the WCDMA mobile communication system of supporting that the high-speed down data bag inserts at stream type.
Background technology
High speed downlink packet insert (HSDPA) be 3GPP in the R5 agreement on satisfying/the asymmetric demand of downstream data traffic and a kind of new technology of proposing, it has solved the contradiction between system's covering and the capacity well, promote power system capacity greatly, satisfied user's high speed business demand.HSDPA has adopted Adaptive Modulation and Coding (AMC) and has mixed and repeat (HARQ) two kinds of key technologies automatically, can bring up to 10M to downstream data traffic speed under the situation that does not change the WCDMA network configuration of having built.The HSDPA technology is by fast physical layer retransmission and transmission merging and the rapid link self adaptation next throughput that can improve grouped data of use by Node B (base station) control.The transmission channel of the user data of carrying HSDPA operation is called high-speed downlink shared channel (HS-DSCH).Provide the fundamental block diagram of HSDPA as Fig. 1.Node B101 carries out channel quality estimation according to power control, ACK/NACK ratio, Quality of Service and the specific field feedback of HSDPA that each is carried on the user 102 on the HSDPA, and, dispatch rapid adjustment with link circuit self-adapting according to the dispatching algorithm and the User Priority algorithm of current employing.
In the 3GPP standard, four kinds of types of service have been defined: conversation type (Conversational), stream type (Streaming), type of interaction (Interactive class), backstage type (Background class).The main distinction between these types of service is professional sensitivity to time delay.The business of conversation type is very responsive to time delay, and the backstage type is then least responsive to time delay.The business of conversation type and stream type belongs to real time business; Type of interaction and backstage type belong to non-real-time service.
Because conversation type and stream type have strict delay requirement, particularly conversation type, need constant bit speed, so the business of conversation type and stream type is fit to be carried by dedicated channel.Type of interaction and backstage type are not high to delay requirement, but need to keep the integrality of data, can pass through common signal channel, dedicated channel or shared channel carrying.The settling time of common signal channel is short, is fit to the little not frequent grouped data of transmission, is mainly used in to send short IP grouping during TCP connects foundation; The advantage of dedicated channel is support to use fast power control and soft handover, but the time of setting up is long and take the sign indicating number resource of down link; Shared channel is used for the transmitting burst grouped data, by the time-division and (or) the sign indicating number mode of dividing is in the shared among users resource of non-real-time service, thereby the sign indicating number resource of saving down link.
At broadband CDMA system, use the notion of soft capacity: the generation of each new calling has increased all and has had the interference level of calling, influences its communication quality.Therefore the access of controlling user-to-network by rights is a very important problem, and this mode is called Call Admission Control (CAC:Call Admission Control).According to the 3GPP standard, CAC is positioned at control RNC (CRNC) (RNC: radio network controller).Before accepting a new RAB, admit control can assess the increase that this carries load in the wireless network that is caused.Have only the admittance of up link and down link to control in the time of all can receiving this radio bearer, the carrying that the ability receivability is asked, otherwise just refuse this carrying request.Service quality (Quality of Service) according to service request is carried out Call Admission Control, when the COS of business is ' trying one's best ' (Best Effort), can not carry out Call Admission Control.
Existing Call Admission Control is that the business that is carried on the dedicated channel is carried out acceptance judging based on the strategy of descending power and uplink interference, and the professional reserved resource of asking is to guarantee professional service quality (QoS).But in high speed descending grouping access system, when using HSDPA technology carrying stream type professional, since the downlink resource of HSDPA be by the time-division or (with) a sign indicating number mode of dividing is that a plurality of users share, and therefore uses the method for existing Call Admission Control can not guarantee the service quality of requested service.
Summary of the invention
Technical problem to be solved by this invention provides a kind of call connection control method of high speed descending grouping access system, solution is in high speed descending grouping access system, when using HSDPA technology carrying stream type business and non-real-time service, the method for existing Call Admission Control can not guarantee the technical problem of the service quality of requested service.
For achieving the above object, the invention provides a kind of call connection control method of high speed descending grouping access system, its characteristics are, the pre-seting of relevant parameter that comprises the steps: step 1, carries out the admittance control of stream type business and non-real-time service, described relevant parameter comprises the priority of subservice, the assurance bit rate of subservice and the bit rate after the subservice maximum transmitted bit rate discount; The public-measurement of step 2, start-up system base station; After step 3, system receive the call business request, judging whether current area is in overload, is then to refuse this call request, and the admittance control procedure of this call business request finishes; Otherwise execution in step four.Step 4, judging whether call request is session service, is then to carry out the admission control scheme of session service and finish on dedicated channel, otherwise execution in step five; Step 5, on high speed descending sharing channel, carry out the admission control scheme of stream type business and non-real-time service.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are, described step 1 further comprises: according to the maximum rate of service request and the QoS parameter of service request, stream type and non-real-time service are divided into a plurality of different subservices, and priority is set; The assurance bit rate of each subservice is set; Bit rate after each subservice maximum transmitted bit rate discount is set.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are that described step 2 further comprises: radio network controller sends the public-measurement control request to the base station, and the measurement of correlation parameter of allocating and measuring; When the condition of measurement report satisfied the measurement of correlation parameter, the base station had the measurement result of " the transmitted bit speed that shared channel provides " to wireless network controller reporting; Radio network controller is preserved the measurement result of base station report.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are, the admission control scheme of the session service in the described step 4 comprises: carry out the admittance control based on power or throughput strategy of real time business, if admit this service request, then assigned with dedicated channel is carried this business; Otherwise refusal inserts the business of being asked, and the admittance control procedure of this call business request finishes.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are that described step 5 further comprises: steps A, judge whether existing business is based upon on the dedicated channel this call business requesting users; Be the admission control scheme of then this service request being carried out described session service, otherwise execution in step B; Step B, minimum transfer bit rate thresholding and the last " the transmitted bit speed that shared channel provides " measured according to the priority correspondence of described service request judge whether the priority of described service request can be carried on the high-speed downlink shared channel, be the information that then disposes described shared channel, use described shared channel to carry this service request, the admittance control procedure of this call business request finishes; Otherwise execution in step C; Step C judges whether described service request can be based upon on the common signal channel, is then to distribute the resource of common signal channel to carry this service request, and the admittance control procedure of call business request finishes; Otherwise execution in step D; Step D judges whether this service request can be based upon on the dedicated channel, is then this service request to be based upon on the dedicated channel, otherwise the admittance control procedure of this call business request finishes.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are, described step D further comprises: carry out based on the admittance of power or throughput strategy according to the maximum bit rate of described service request and control, if allow to insert, then carry this service request according to maximum bit rate assigned with dedicated channel resource; If do not allow, judge further whether this business is session service, if not session service, then the maximum bit rate to service request carries out discount; To the admittance control of the execution of the bit rate after the discount,, then carry this service request according to the bit rate assigned with dedicated channel resource after the discount if allow to insert based on power or throughput strategy; If do not allow to insert, then refuse the access of service request, the admittance control procedure of call business request finishes.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are, after carrying this service request, also be included in the transmission course and utilize variable spreading factor to adjust the step of the message transmission rate of dedicated channel according to the situation of business transmission according to the bit rate assigned with dedicated channel resource after the discount.
The call connection control method of above-mentioned high speed descending grouping access system, its characteristics are that described measurement parameter is cycle or incident.
Technique effect of the present invention is:
Adopt the method for the invention, compared with prior art, consider the characteristics of HSDPA technology, carry out corresponding admission control scheme, improve the resource utilization of system, and be easier to realize according to type of service.
Further describe specific embodiments of the invention below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the fundamental block diagram of the HSDPA among the present invention;
Fig. 2 is a public-measurement basic flow sheet between RNC among the present invention and Node B;
Fig. 3 is the fundamental block diagram of the SRNC Call Admission Control among the present invention;
Fig. 4 is the flow chart of the acceptance judging among the present invention;
Fig. 5 is the flow chart of the inventive method.
Embodiment
Basic thought of the present invention is based on the type of service of call request, carries out different call acceptance strategies and selects suitable channel type to come bearer service according to the operating position of resource.
The business of conversation type is a real time business.The business of conversation type must keep the time relationship between information entity in the Business Stream in transmission course, have harshly, and therefore low delay requirement needs to distribute special-purpose channel resource carry the conversation type business.
The stream type business is a real time business, and the bit rate and the time delay of transfer of data had certain requirement, and according to the design of HSDPA, the stream type business can be carried on HS-DSCH or the dedicated channel.
Non-real-time service is the COS that belongs to ' trying one's best ' (Best Effort).If use dedicated channel to carry non-real-time service, then need to carry out and admit control, and according to maximum bit rate assigned code resource, this can cause the waste of yard resource; Also can utilize variable spreading factor (SF) to adjust data rate in transmission course according to the situation of business transmission by the discount of maximum bit rate being admitted control and Resources allocation.If use high-speed downlink shared channel to carry non-real-time service, because non-real-time service does not need to guarantee professional ' guaranteed bit rate (bit rate guarantee) ' and ' Transfer delay (moving time-delay) ', so can not need acceptance judging just directly to admit.But consider the characteristics (big delay variation triggers the startup slowly of TCP easily) of TCP transmission, slowly start the decline that causes systematic function for fear of too much triggering TCP, therefore in the present invention, the access request of non-real-time service carried out admits control, to non-real-time service according to priority setting ' minimum transfer bit rate '.
The present invention considers whether the stream type or the non real-time type service of request are carried on the HS-DSCH by the transmitted bit speed that is carried on number of users on the HS-DSCH and current HS-DSCH and provides.When HS-DSCH can't carry this non-real-time service request, consider to use common signal channel to carry this request, because short worker P transmission packets during the suitable TCP connection of the common signal channel foundation.When using common signal channel carrying non-real-time service, in transmission course, when volume of transmitted data surpasses certain thresholding, carry out the switching of channel, professional carrying is transferred on HS-DSCH or the dedicated channel from common signal channel; When HS-DSCH can't carry this non-real-time service request and common signal channel and also can't carry this non-real-time service request, consider to use dedicated channel to carry this service request.If when dedicated channel can not provide the required resource of service request maximum bit rate, then need the maximum bit rate of service request is carried out discount, admit control and resource allocation according to the bit rate after the discount.In transmission course, can utilize variable spreading factor (SF) to adjust the message transmission rate of dedicated channel according to the situation of business transmission.
With reference to figure 5, be the flow chart of the inventive method;
The down link of high-speed downlink packet access systems of the present invention admits the method for control as follows:
Step 510: stream type and non-real-time service are admitted pre-seting of control relevant parameter
1) according to the maximum rate of service request and the service quality of service request (QoS) parameter, stream type and non-real-time service are divided into a plurality of different subservices, and priority level is set.
2) the assurance bit rate (guaranteed bit rate) of each subservice is set.
3) bit rate after each subservice maximum transmitted bit rate discount is set.
Step 520: start the public-measurement of Node B,
1) comprises measurement type ' HS-DSCH Provided Bit Rate '
2) measurement parameter is set
Step 530: when receiving that calling out access asks, judge the load condition of current area.
This step can comprise the following steps: again
When the sub-district is in overload, then refuse this call request.This admittance control procedure of calling out the request of access finishes.
When the sub-district is not in overload and is in stable state, this request is carried out next step acceptance judging.
Step 540:, carry out corresponding admission control scheme according to the type of service of call request.
This step can comprise the following steps: again
1) when the type of service request is the real time business of conversation type, then carries out the admittance control based on power or throughput strategy of real time business.If admit this service request, then assigned with dedicated channel is carried this business; Otherwise refusal inserts the business of being asked.This admittance control procedure of calling out the request of access finishes.
2) when the type of service request is stream type and non real-time type service, then continue next step admittance control.
Step 550: the admission control scheme of stream type and non-real-time service
This step can comprise the following steps: again
1) whether existing user's business of judging this service request be based upon on the dedicated channel;
If the existing business of the user of this service request is based upon on the dedicated channel, then this service request is carried out based on the admittance of power or throughput strategy and controlled.If admit this service request, then assigned with dedicated channel is carried this business; Otherwise refusal inserts the business of being asked.This admittance control procedure of calling out the request of access finishes.
If the user of this service request does not have business to be based upon on the dedicated channel, then continue next step admittance control.
2) whether the minimum transfer bit rate thresholding of judging the priority correspondence of this service request is less than or equal to ' the transmitted bit speed of HS-DSCH Provided Bit Rate ' respective priority in the last measurement report;
Whether the priority of judging this service request can be carried on the HS-DSCH.If the priority of this service request can be carried on the HS-DSCH, then dispose HS-DSCH information, use HS-DSCH to carry this service request.This admittance control procedure of calling out the request of access finishes.
If the priority of this service request cannot be carried on the HS-DSCH, then continue next step admittance control.
3) judge whether this service request can be based upon on the common signal channel.
If this business can be based upon on the common signal channel, then distribute the resource of common signal channel to carry this service request.The admittance control procedure of calling out the request of access finishes.
If this business can't be based upon on the common signal channel, then continue next step admittance control.
Judge whether this business can be based upon on the dedicated channel.At first carry out based on the admittance of power or throughput strategy and control according to the maximum bit rate of this service request.If allow to insert, then carry this service request according to maximum bit rate assigned with dedicated channel resource.If do not allow, then the maximum bit rate to service request carries out discount, the bit rate after the discount is carried out based on the admittance of power or throughput strategy controlled.If allow to insert, then carry this service request according to the bit rate assigned with dedicated channel resource after the discount, otherwise the access of refusal service request.The admittance control procedure of calling out the request of access finishes.
Fig. 1 has provided the fundamental block diagram of HSDPA.Node B101 carries out channel quality estimation according to each HSDPA user's 102 power control, ACK/NACK ratio, quality of service and the specific field feedback of HSDPA, and dispatches rapid adjustment with link circuit self-adapting according to the dispatching algorithm of current employing and User Priority algorithm.In order to realize the functional characteristic of HSDPA, in physical layer specification, introduced three new channels:
HS-DSCH: the carries downlink user data, when adopting the 16QAM modulation, its peak rate can reach 10Mbit/s.
HS-SCCH: the physical layer control signaling that is used for decoding on the carrying HS-DSCH.If take place to retransmit or the erroneous packet data, this channel also comprises possible physical layer data combination.
HS-DPCCH: the carrying uplink control signaling, promptly ARQ confirms and the downlink quality feedback information.
At first UE102 monitors the HS-SCCH channel, determines the code word that despreading HS-DSCH is required with a time slot, utilizes the specific mask of UE102 to judge whether the data of reception are oneself.If then utilize the data on the message pick-up HS-DSCH on the HS-SCCH.Produce CRC (CRC) check results after ACK/NACK information reflects grouped data decoding and merging after the UE102 reception data, and the quality condition of current down link is indicated in downlink quality indication (CQI).
Fig. 2 has provided the basic procedure of public-measurement between RNC and Node B.
In step 201, RNC sends the public-measurement control request to Node B, and the relevant parameter of allocating and measuring.
In step 202, when the condition of measurement report satisfies (cycle or incident), Node B report measurement result to RNC.
In step 203, RNC preserves the measurement result of Node B report.
Fig. 3 has provided the fundamental block diagram of service wireless network controller (Service Radio Network Control:SRNC) Call Admission Control.When SRNC 307 receive that CN sends ' during the message of RAB assignment request ' 301, SRNC 307 gives RRM entity 306 message and admits control.In module 304, RRM (Radio ResourceManagement:RRM) entity 306 is carried out the corresponding call admission control scheme according to the type of service and the service quality of request, will consider the loading condition that the sub-district is current simultaneously and estimate that the foundation of carrying causes the increase of wireless network load.According to the judgement of module 304, if new request allows to insert, then module 305 is new traffic assignments resource.SRNC transmission ' RAB is assigned response ' message 302 is given CN, and the result of appointment is asked in report.
Shown in Figure 4 is concrete admittance control procedure.At first step 401 is when SRNC receives CN ' RAB assignment request ', and it is congested that step 402 judges whether the sub-district present load is in.If the sub-district is in congested, the then access of the business that step 417 refusal is new, the admittance process finishes; Otherwise step 403CAC carries out the corresponding judgement that inserts according to the qos parameter in the message according to the type of service of request.
When the type of service of request when being the real time business of conversation type, the increase that step 409 item is come estimating down-ward link and uplink load according to the requirement of the maximum bit rate of service request.Step 410, the increase of having only increase when down link can't cause that the total transmitting power of down link surpasses certain threshold value and uplink load also can not cause when the interference of up link surpasses certain threshold value, CAC allows this service request to insert, and step 414 is come the business of assigned with dedicated channel resource bearing request according to the maximum bit rate of request, and step 417 admits control procedure to finish afterwards; If the condition of step 410 does not satisfy, and the type of service of step 411 judgement request, if session service, step 416 refusal inserts, step 417 is admitted the control procedure end.
When the type of service of step 403 request was stream type business or non-real-time service, at first step 404 judged whether the business of request can be based upon on the HS-DSCH.
If stream type and non real-time type service can be divided into I subservice, each subservice number is respectively 0,1 ..., I-1, corresponding different priority.If PRI iBe the weight of i priority, 0≤i≤I-1 wherein, 0<PRI i≤ 1, the more little priority of i is high more, and weight is more little; N iIt is the number of users of i priority; R G, iBe ' assurance bit rate ' (the Guaranteed BitRate) under i the priority; R M, iBe measured value ' the HS-DSCH Provided Bit Rate ' that i priority reports; For the business of stream type, R G, iCan from qos parameter, obtain; For the business of type of interaction and backstage type, can R be set the reference stream type service G, iIf total rate-limit is R Total
At first judge following formula:
R G , i + Σ j = 0 I - 1 R M , j ≤ R total
If following formula is set up, then allow new business to be based upon on the HS-DSCH, step 405 is provided with the HS-DSCH information of carrying requested service, and step 406 is carried the business of request by HS-DSCH.Step 417 admits control procedure to finish.
If following formula is false, the inequality below then judging:
Σ j = 0 I - 1 PRI j · ( R M , j - R G , j · N j ) ≥ PRI i · R G , i
If following formula is set up, then allow new business to be based upon on the HS-DSCH, step 405 is provided with the HS-DSCH information of carrying requested service, and step 406 is carried the business of request by HS-DSCH.Step 417 admits control procedure to finish.Otherwise step 407 refusal is carried on the HS-DSCH, judges further whether the business of request can be carried on the common signal channel.
If business can be based upon on the common signal channel, then step 408 distributes common channel resources to carry the business of request.If business can't be based upon on the common signal channel, then step 409 is come the increase of estimating down-ward link and uplink load according to the requirement of the maximum bit rate of service request.The increase that step 410 has only the increase when down link can't cause that the total transmitting power of down link surpasses certain threshold value and uplink load also can not cause when the interference of up link surpasses certain threshold value, CAC allows this service request to insert, and step 414 is come the business of assigned with dedicated channel resource bearing request according to the maximum bit rate of request, and step 417 admits control procedure to finish; If the condition of step 410 does not satisfy, and step 411 is not session service, and then the maximum bit rate of step 412 pair request carries out discount, according to the speed estimating down-ward link after the discount and the increase of uplink load.If step 413 allow to be admitted the speed after the discount, the business of the rate-allocation dedicated channel resource carrying request of step 415 after then according to discount, otherwise step 416 refusal inserts.Step 417 admits control procedure to finish.
As from the foregoing, the present invention has set forth the acceptance controlling method of high-speed downlink packet access systems.The present invention mainly is based on the type of service of RAB and carries out the corresponding call admission control scheme, and carries out the admittance control of convection-type and non real-time type service according to the characteristics that the characteristics and the TCP of HSDPA technology transmits on the WCDMA wave point.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Every according to equivalence variation and modification that the present invention did, all contained by claim of the present invention.

Claims (8)

1. the call connection control method of a high speed descending grouping access system is characterized in that, comprises the steps:
Step 1, the pre-seting of relevant parameter of carrying out the admittance control of stream type business and non-real-time service, described relevant parameter comprises the priority of subservice, the assurance bit rate of subservice and the bit rate after the subservice maximum transmitted bit rate discount;
The public-measurement of step 2, start-up system base station;
After step 3, system receive the call business request, judging whether current area is in overload, is then to refuse this call request, and the admittance control procedure of this call business request finishes; Otherwise execution in step four;
Step 4, judging whether call request is session service, is then to carry out the admission control scheme of session service and finish in dedicated channel, otherwise execution in step five;
Step 5, on high speed descending sharing channel, carry out the admission control scheme of stream type business and non-real-time service.
2. the call connection control method of high speed descending grouping access system according to claim 1 is characterized in that, described step 1 further comprises:
According to the maximum rate of service request and the QoS parameter of service request, stream type and non-real-time service are divided into a plurality of different subservices, and priority is set;
The assurance bit rate of each subservice is set;
Bit rate after each subservice maximum transmitted bit rate discount is set.
3. the call connection control method of high speed descending grouping access system according to claim 2 is characterized in that, described step 2 further comprises
Radio network controller sends the public-measurement control request to the base station, and the relevant parameter of allocating and measuring;
When the condition of measurement report satisfied the measurement of correlation parameter, the base station had the measurement result of the transmitted bit speed that shared channel provides to wireless network controller reporting;
Radio network controller is preserved the measurement result of base station report.
4. according to the call connection control method of claim 1,2 or 3 described high speed descending grouping access systems, it is characterized in that, the admission control scheme of the session service in the described step 4 comprises: carry out the admittance control based on power or throughput strategy of real time business, if admit this service request, then assigned with dedicated channel is carried this business; Otherwise refusal inserts the business of being asked, and the admittance control procedure of this call business request finishes.
5. the call connection control method of high speed descending grouping access system according to claim 4 is characterized in that, described step 5 further comprises:
Steps A judges whether existing business is based upon on the dedicated channel this call business requesting users; Be the admission control scheme of then this service request being carried out described session service, otherwise execution in step B;
Step B, minimum transfer bit rate thresholding and the last " the transmitted bit speed that shared channel provides " measured according to the priority correspondence of described service request judge whether the priority of described service request can be carried on the high-speed downlink shared channel, be the information that then disposes described shared channel, use described shared channel to carry this service request, the admittance control procedure of this call business request finishes; Otherwise execution in step C;
Step C judges whether described service request can be based upon on the common signal channel, is then to distribute the resource of common signal channel to carry this service request, and the admittance control procedure of call business request finishes; Otherwise execution in step D;
Step D judges whether this service request can be based upon on the dedicated channel, is then this service request to be based upon on the dedicated channel, otherwise the admittance control procedure of this call business request finishes.
6. the call connection control method of high speed descending grouping access system according to claim 5 is characterized in that, described step D further comprises:
Maximum bit rate execution according to described service request is controlled based on the admittance of power or throughput strategy, if allow to insert, then carries this service request according to maximum bit rate assigned with dedicated channel resource; If do not allow, judge further whether this business is session service, if not session service, then the maximum bit rate to service request carries out discount;
To the admittance control of the execution of the bit rate after the discount,, then carry this service request according to the bit rate assigned with dedicated channel resource after the discount if allow to insert based on power or throughput strategy; If do not allow to insert, then refuse the access of service request, the admittance control procedure of call business request finishes.
7. the call connection control method of high speed descending grouping access system according to claim 6, it is characterized in that, after carrying this service request, also be included in the transmission course and utilize variable spreading factor to adjust the step of the message transmission rate of dedicated channel according to the situation of business transmission according to the bit rate assigned with dedicated channel resource after the discount.
8. the call connection control method of high speed descending grouping access system according to claim 3 is characterized in that, described measurement parameter is cycle or incident.
CNB200410009659XA 2004-10-13 2004-10-13 Method for controlling the call admission for high speed down going packet access system Expired - Fee Related CN100401834C (en)

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