CN101932003A - Method and equipment for processing congestion control - Google Patents
Method and equipment for processing congestion control Download PDFInfo
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- CN101932003A CN101932003A CN2009100875233A CN200910087523A CN101932003A CN 101932003 A CN101932003 A CN 101932003A CN 2009100875233 A CN2009100875233 A CN 2009100875233A CN 200910087523 A CN200910087523 A CN 200910087523A CN 101932003 A CN101932003 A CN 101932003A
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Abstract
The embodiment of the invention discloses a method for processing congestion control. The method comprises the following steps that: network control equipment acquires high-speed downlink shared channel (HS-DSCH) transmission parameters of a terminal; a bandwidth needed for transmitting data according to the HS-DSCH transmission parameters is confirmed; and when the confirmed bandwidth is greater than the current idle bandwidth of the network control equipment, the network control equipment adjusts the HS-DSCH transmission parameters according to the idle bandwidth and transmits the data according to the adjusted HS-DSCH transmission parameters. The embodiment of the invention also discloses radio network control equipment. Through the method and the equipment, data transmission congestion can be controlled effectively, so that the problem of data packet loss is solved and the stability of a user rate is improved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of processing method and equipment of congested control.
Background technology
Networking mode between wireless network control apparatus in existing 3-G (Generation Three mobile communication system) (RNC) and base station (NodeB) as shown in Figure 1.
Be connected with dual mode between RNC and the Node B: Asynchronous Transfer Mode (ATM) and IP mode, the two is can be simultaneous, also can only exist a kind of.Between RNC and the NodeB direct physical connection might not be arranged simultaneously, RNC and Node B can directly hang on the transmission network.
RNC and Node B need distribute certain bandwidth when carrying out professional the transmission, the 3G system not only can the voice-bearer user, also need to carry visual telephone service and interactive class/background business, the characteristic of the type of service that these are different is different, need different service quality (Qos) to guarantee, and priority is different.Under the ATM mode, different types of service is divided into CBR, VBR, rtVBR, UBR, different types of service is distinguished according to different DSCP in the IP mode.Business by the priority scheduling higher priority guarantees professional Qos.
Priority scheduling business according to type of service, under the situation of the Iub interface bandwidth abundance between RNC and the NodeB, can satisfy dispatching requirement, but it is inadequate to work as band width configuration, just when bandwidth that the Iub interface bandwidth can send less than Node B air interface, existing scheme is by abandoning at transmitting terminal or the enterprising line data bag of transmission network, for example adopt and abandon the business of lower priority or the mode of random drop, guarantee the Qos of higher priority business.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
The mode of existing packet discard can cause the big ups and downs of user data, need upper TCP to retransmit during data-bag lost, if the packet sequence number of losing is crucial sequence number, packet as the upper strata can be divided into 6 Service Data Units (SDU), the 6th SDU taken place to lose then, and the first five also will retransmit, user's speed is very unsettled in this case, and the speed that also can carry less than the Iub interface bandwidth of total service rate.
As seen, when RNC carries out transfer of data, if data bandwidth is not enough, when speed that data send has surpassed the speed that the RNC interface bandwidth can carry, can take place when then transmitting data congested, thereby cause the situation of loss of data.
Summary of the invention
The embodiment of the invention provides a kind of processing method and equipment of congested control, thereby be used for solving the congested problem that causes loss of data takes place when the prior art net control device transmits data.
The embodiment of the invention provides a kind of processing method of congested control, and this method comprises:
Net control device obtains the high speed downlink shared channel HS-DSCH transmission parameter of terminal; Determine to transmit the bandwidth that data need according to described HS-DSCH transmission parameter;
During greater than the idle bandwidth of current described net control device, described net control device is adjusted described HS-DSCH transmission parameter according to described idle bandwidth in the bandwidth of determining, and according to adjusted HS-DSCH transmission parameter transmission data.
The embodiment of the invention provides a kind of net control device, and this net control device comprises:
Parameter acquiring unit is used to obtain the high speed downlink shared channel HS-DSCH transmission parameter of terminal;
The bandwidth determining unit is used for determining that the HS-DSCH transmission parameter that obtains according to described parameter acquiring unit transmits the bandwidth of data needs;
Described HS-DSCH transmission parameter when being used for the bandwidth determined in described bandwidth determining unit greater than the idle bandwidth of current present networks control appliance, is adjusted according to described idle bandwidth in the parameter adjustment unit;
Data transmission unit is used for according to the adjusted HS-DSCH transmission parameter transmission in described parameter adjustment unit data.
In the scheme that the embodiment of the invention provides, net control device obtains the HS-DSCH transmission parameter of terminal, determines the bandwidth that needs according to described HS-DSCH transmission parameter transmission data; In the bandwidth of determining during greater than the idle bandwidth of current I UB interface, net control device is adjusted the HS-DSCH transmission parameter according to idle bandwidth, and according to adjusted HS-DSCH transmission parameter by IUB interface transmission data, thereby guarantee to be no more than the total bandwidth of distributing into net control device according to the total bandwidth that adjusted HS-DSCH transmission parameter transmission data need, avoided the congested generation of transfer of data, thereby avoided the packet loss problem of packet, improved the stability of user rate.
Description of drawings
Fig. 1 is the connected mode schematic diagram of RNC and base station in the prior art;
The method flow schematic diagram that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is the schematic flow sheet of the specific embodiment of the invention;
The device structure schematic diagram that Fig. 4 provides for the embodiment of the invention.
Embodiment
Thereby the congested problem that causes loss of data takes place during for fear of net control device transmission data, the embodiment of the invention provides a kind of processing method of congested control, in this method, net control device is turned high speed descending sharing channel (HS-DSCH) transmission parameter of terminal down according to current idle bandwidth, makes the bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data be not more than current idle bandwidth.
Net control device comprises base station controller (BSC), radio network controller (RNC) etc.
Referring to Fig. 2, the processing method of the congested control that the embodiment of the invention provides specifically may further comprise the steps:
Step 20: net control device obtains the high speed downlink shared channel HS-DSCH transmission parameter of terminal;
Step 21: net control device is determined to transmit the bandwidth that data need according to the HS-DSCH transmission parameter that gets access to;
Step 22: in the bandwidth of determining during greater than the idle bandwidth of current network control appliance, net control device is adjusted described HS-DSCH transmission parameter according to this idle bandwidth, makes the bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data be not more than current idle bandwidth;
Step 23: net control device according to adjusted HS-DSCH transmission parameter to the base station transmits data.
In the step 20, the concrete mode that net control device obtains the HS-DSCH transmission parameter of terminal can have following two kinds:
First kind, at first, net control device sends the HS-DSCH capabilities request message to the base station after determining that through signaling process (normal process in the 3GPP agreement at present) user terminal need carry out high speed downlink packet access (HSPDA) business; Then, after the base station receives the HS-DSCH capabilities request message, send HS-DSCH capability distribution message, the HS-DSCH transmission parameter of this HS-DSCH capability distribution message carried terminal to net control device; At last, net control device extracts the HS-DSCH transmission parameter of terminal from the HS-DSCH capability distribution message that receives.
Second kind, in professional transmission course, the base station initiatively sends the HS-DSCH capability distribution message of the HS-DSCH transmission parameter of carried terminal to net control device.Net control device extracts the HS-DSCH transmission parameter of terminal from the HS-DSCH capability distribution message that receives.
The HS-DSCH transmission parameter specifically comprises: maximum medium access control dedicated stream (MAC-d) protocol Data Unit (PDU) length value, be Maximum MAC-d PDU Length, HS-DSCH ability value, be HS-DSCH Credits, HS-DSCH transmission time interval, be HS-DSCH Interval, HS-DSCH repetition period, i.e. HS-DSCH Repetition Period etc.Wherein, the HS-DSCH ability value is represented the number of each MAC-d PDU that sends.The HS-DSCH transmission time interval represents to carry out every this time interval the transmission of a MAC-d PDU.
In the step 21, net control device can be determined the bandwidth that needs according to the HS-DSCH transmission parameter transmission data that get access in the step 20 according to following formula:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/and the HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for being provided with.K is the value that is provided with according to FP layer expense, and according to different types of service, this value is different.
In the step 22, net control device is adjusted the HS-DSCH transmission parameter according to the idle bandwidth of current I UB interface, and its concrete grammar can adopt following three kinds:
First kind, adjust HS-DSCH ability value in the HS-DSCH transmission parameter according to following formula:
HS-DSCH ability value=(the idle bandwidth * HS-DSCH transmission time interval of current I UB interface)/(maximum MAC-d PDU length value * K);
After adjusting the HS-DSCH ability value according to this kind mode, net control device is according to MAC-d PDU length value, HS-DSCH transmission time interval and the adjusted HS-DSCH ability value of the maximum in the HS-DSCH transmission parameter that gets access in the step 20, by IUB interface transmission data.
Second kind, adjust the MAC-d PDU length value of the maximum in the HS-DSCH transmission parameter according to following formula:
Maximum MAC-d PDU length value=(the idle bandwidth */HS-DSCH transmission time interval of current I UB interface)/(HS-DSCH ability value * K);
Adjust the MAC-d PDU length value of maximum according to this kind mode after, net control device is according to the MAC-d PDU length value of the HS-DSCH ability value in the HS-DSCH transmission parameter that gets access in the step 20, HS-DSCH transmission time interval and adjusted maximum, by IUB interface transmission data.
The third, adjust the HS-DSCH transmission time interval of the maximum in the HS-DSCH transmission parameter according to following formula:
The idle bandwidth of HS-DSCH transmission time interval=(maximum MAC-d PDU length value * HS-DSCH ability value * K)/current I UB interface;
Adjust the HS-DSCH transmission time interval according to this kind mode, net control device is according to MAC-d PDU length value, HS-DSCH ability value and the adjusted HS-DSCH transmission time interval of the maximum in the HS-DSCH transmission parameter that gets access in the step 20, by IUB interface transmission data.
Preferable, in order to adjust the data transmission rate of IUB interface in real time, when net control device finds that bandwidth resources are inadequate, then need according to service priority the adjustment that all users in the system Already in carry out resource allocation is guaranteed that the data transmission rate of IUB interface is no more than the speed that can carry for the total bandwidth of IUB interface assignment.Concrete, net control device is after the data transmission rate of determining the IUB interface surpasses predefined speed threshold value, adjust the HS-DSCH transmission parameter of all or part of terminal under the present networks control appliance, transmit data by the IUB interface according to adjusted HS-DSCH transmission parameter; And the total bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data is no more than predefined speed threshold value, and this speed threshold value is to be not less than 0 and be not more than data transmission rate value into the total bandwidth correspondence of IUB interface assignment.
During the HS-DSCH transmission parameter of all or part of terminal of net control device under adjusting the present networks control appliance, can adjust according to predefined adjustment strategy, for example, adjust according to service priority, the preferential HS-DSCH transmission parameter of adjusting the lower terminal of service priority, during concrete the adjustment, the MAC-d PDU length value of the maximum in the HS-DSCH transmission parameter of the terminal that priority is minimum, the HS-DSCH ability value, one or more turning down in the HS-DSCH transmission time interval, turn the data transmission rate that the IUB interface of this moment is calculated in the back down, if this data transmission rate is still greater than predefined speed threshold value, then continue to adjust the HS-DSCH transmission parameter of time low terminal of service priority, by that analogy, till the total bandwidth that the transmission data need after adjusting is no more than predefined speed threshold value.Perhaps, can also adjust according to homeostatic principle, soon one or more the turning down in the MAC-d PDU length value of the maximum in the HS-DSCH transmission parameter of all terminals, HS-DSCH ability value, the HS-DSCH transmission time interval under the present networks control appliance makes the total bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data be no more than predefined speed threshold value.
Preferable, for the resource re-allocation that terminal is discharged is given other-end, net control device need be preserved the band width configuration information of terminal under the present networks control appliance, after certain terminal discharges bandwidth resources, the bandwidth resources that the free time goes out is redistributed to still carrying out professional other-end.Concrete, net control device is adjusted the HS-DSCH transmission parameter that is carrying out the other-end of professional transmission under the present networks control appliance after definite terminal winding-up transmits, transmit data according to adjusted HS-DSCH transmission parameter by the IUB interface; And the bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data is greater than the bandwidth that needs according to the HS-DSCH transmission parameter transmission data before adjusting.
When net control device is carrying out the HS-DSCH transmission parameter of the professional other-end that transmits under adjusting the present networks control appliance, can adjust according to predefined adjustment strategy, for example, adjust according to service priority, the preferential HS-DSCH transmission parameter of adjusting the higher terminal of service priority, during concrete the adjustment, the one or more accent in the MAC-d PDU length value of the maximum in the HS-DSCH transmission parameter of one or more terminals that priority is higher, HS-DSCH ability value, the HS-DSCH transmission time interval are big.Perhaps, principle according to the mean allocation bandwidth is adjusted, and soon the one or more accent in the MAC-d PDU length value of the maximum in the HS-DSCH transmission parameter of all terminals, HS-DSCH ability value, the HS-DSCH transmission time interval are big under the present networks control appliance.、
With specific embodiment invention is described below:
Step 1:RNC signalling module is in the time need carrying out business by HSDPA through the clear and definite user of signaling process, and with needed MAC-d stream, parameters such as service priority are carried at and issue the professional sending module of RNC in the resource allocation message.
The professional sending module of step 2:RNC sends HS-DSCH Capacity Request (HS-DSCH capability requests) message to Node B;
Step 3:Node B returns HS-DSCH Capacity Allocation (HS-DSCH capability distribution) message to the professional sending module of RNC, comprise Maximum MAC-d PDU Length (maximum MAC-d PDU length), HS-DSCH Credits (HS-DSCH ability) in the message, HS-DSCHInterval (HS-DSCH transmission time interval), HS-DSCH Repetition Period HS-DSCH transmission parameters such as (HS-DSCH repetition periods);
After the professional sending module of step 4:RNC is received HS-DSCH capability distribution message, this message is sent to RNC resource judging module;
HS-DSCH transmission parameter in the step 5:RNC resource judging module record HS-DSCH Capacity Allocation assignment messages, calculate the bandwidth that needs according to these parameter transmission data simultaneously, if this bandwidth is not more than the idle bandwidth of current I UB interface, then return HS-DSCH Capacity AllocationAck message and give RNC professional sending module, entrained identical in entrained HS-DSCH transmission parameter and the HS-DSCH Capacity Allocation message in the HS-DSCH Capacity Allocation Ack message;
If this bandwidth is greater than the idle bandwidth of current I IB interface, then the HS-DSCH transmission parameter in the HS-DSCH Capacity Allocation assignment messages is turned down according to this idle bandwidth, the feasible bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data is not more than the idle bandwidth of current I UB interface, and returns the HS-DSCHCapacity Allocation Ack message of carrying adjusted HS-DSCH transmission parameter to the professional sending module of RNC;
The professional sending module of step 6:RNC sends data according to the HS-DSCH transmission parameter that carries in the HS-DSCH Capacity Allocation Ack message by the IUB interface.
Step 7: when new user inserts, repeat same 1-6 flow process.
Referring to Fig. 4, the embodiment of the invention also provides a kind of net control device, and this net control device comprises:
Described HS-DSCH transmission parameter when being used for the bandwidth determined in described bandwidth determining unit greater than the idle bandwidth of current present networks control appliance, is adjusted according to described idle bandwidth in parameter adjustment unit 32;
Data transmission unit 33 is used for according to the adjusted HS-DSCH transmission parameter transmission in described parameter adjustment unit data.
Described parameter acquiring unit 30 comprises:
Request transmitting unit is used for sending the HS-DSCH capabilities request message to the base station when definite user terminal need carry out high speed downlink packet access HSPDA business;
The response receiving element is used to receive the HS-DSCH capability distribution message of the HS-DSCH transmission parameter of the carried terminal of sending the base station;
Parameter extraction unit is used for from the HS-DSCH transmission parameter of the described terminal of described HS-DSCH capability distribution message extraction.
Described bandwidth determining unit 31 is used for:
Comprise at described HS-DSCH transmission parameter: when maximum medium access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval, determine to reach the bandwidth that described HS-DSCH transmittability needs according to following formula:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/and the HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for being provided with.
Described parameter adjustment unit 32 is used for: the HS-DSCH ability value of adjusting described HS-DSCH transmission parameter according to following formula:
HS-DSCH ability value=(described idle bandwidth */described HS-DSCH transmission time interval)/(the MAC-d PDU length value * K of described maximum);
Accordingly, described data transmission unit 33 is used for:
MAC-d PDU length value, HS-DSCH transmission time interval and adjusted HS-DSCH ability value transmission data according to the maximum in the described HS-DSCH transmission parameter.
Described parameter adjustment unit 32 is used for: the MAC-d PDU length value of adjusting the maximum of HS-DSCH transmission parameter according to following formula:
Maximum MAC-d PDU length value=(the idle bandwidth */HS-DSCH transmission time interval of current I UB interface)/(HS-DSCH ability value * K);
Accordingly, described data transmission unit 33 is used for:
MAC-d PDU length value transmission data according to the HS-DSCH ability value in the described HS-DSCH transmission parameter, HS-DSCH transmission time interval and adjusted maximum.
Described parameter adjustment unit 32 is used for: the HS-DSCH transmission time interval of adjusting the maximum of HS-DSCH transmission parameter according to following formula:
The idle bandwidth of HS-DSCH transmission time interval=(maximum MAC-d PDU length value * HS-DSCH ability value * K)/current I UB interface;
Accordingly, described data transmission unit 33 is used for:
MAC-d PDU length value, HS-DSCH ability value and adjusted HS-DSCH transmission time interval transmission data according to the maximum in the described HS-DSCH transmission parameter.
This net control device further comprises:
The first bandwidth adjustment unit 34, be used for after the data transmission rate of determining the present networks control appliance surpasses predefined speed threshold value, adjust the HS-DSCH transmission parameter of all or part of terminal under the present networks control appliance, according to adjusted HS-DSCH transmission parameter transmission data; And the data transmission rate of transmitting the total bandwidth correspondence of data needs according to adjusted HS-DSCH transmission parameter is no more than predefined speed threshold value.
This net control device further comprises:
The second bandwidth adjustment unit 35 is used for adjusting the HS-DSCH transmission parameter that is carrying out the other-end of professional transmission under the present networks control appliance after determining described terminal winding-up transmission, according to adjusted HS-DSCH transmission parameter transmission data; And the bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data is greater than the bandwidth that needs according to the HS-DSCH transmission parameter transmission data before adjusting.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, net control device obtains the HS-DSCH transmission parameter of terminal, determines the bandwidth that needs according to described HS-DSCH transmission parameter transmission data; In the bandwidth of determining during greater than the idle bandwidth of current network control appliance, net control device is adjusted the HS-DSCH transmission parameter according to idle bandwidth, and according to adjusted HS-DSCH transmission parameter transmission data, thereby the total bandwidth that assurance needs according to adjusted HS-DSCH transmission parameter transmission data is no more than the total bandwidth into the interface assignment of net control device, avoided the congested generation of transfer of data, thereby avoided the packet loss problem of packet, improved the stability of user rate.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. the processing method of a congested control is characterized in that, this method comprises:
Net control device obtains the high speed downlink shared channel HS-DSCH transmission parameter of terminal; Determine to transmit the bandwidth that data need according to described HS-DSCH transmission parameter;
During greater than the idle bandwidth of current described net control device, described net control device is adjusted described HS-DSCH transmission parameter according to described idle bandwidth in the bandwidth of determining, and according to adjusted HS-DSCH transmission parameter transmission data.
2. the method for claim 1 is characterized in that, the HS-DSCH transmission parameter that net control device obtains terminal comprises:
When net control device determines that terminal need be carried out high speed downlink packet access HSPDA business, send the HS-DSCH capabilities request message to the base station;
After the base station receives described HS-DSCH capabilities request message, send HS-DSCH capability distribution message, the HS-DSCH transmission parameter of described HS-DSCH capability distribution message carried terminal to described net control device;
Described net control device extracts the HS-DSCH transmission parameter of described terminal from the described HS-DSCH capability distribution message that receives.
3. method as claimed in claim 1 or 2 is characterized in that, described HS-DSCH transmission parameter comprises: maximum medium access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval;
Determine to reach the bandwidth that described HS-DSCH transmittability needs according to following formula:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/and the HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for being provided with.
4. method as claimed in claim 3 is characterized in that, described net control device is adjusted described HS-DSCH transmission parameter according to described idle bandwidth and comprised:
Adjust HS-DSCH ability value in the described HS-DSCH transmission parameter according to following formula:
HS-DSCH ability value=(described idle bandwidth */described HS-DSCH transmission time interval)/(the MAC-d PDU length value * K of described maximum);
Describedly draw together according to adjusted HS-DSCH transmission parameter transmits data packets:
MAC-d PDU length value, HS-DSCH transmission time interval and adjusted HS-DSCH ability value transmission data according to the maximum in the described HS-DSCH transmission parameter.
5. method as claimed in claim 2 is characterized in that, this method further comprises:
Described net control device is after the data transmission rate of determining the present networks control appliance surpasses predefined speed threshold value, adjust the HS-DSCH transmission parameter of all or part of terminal under the present networks control appliance, according to adjusted HS-DSCH transmission parameter transmission data; And the data transmission rate of transmitting the total bandwidth correspondence of data needs according to adjusted HS-DSCH transmission parameter is no more than described speed threshold value.
6. method as claimed in claim 2 is characterized in that, this method further comprises:
Described net control device is adjusted the HS-DSCH transmission parameter that is carrying out the other-end of professional transmission under the present networks control appliance after determining described terminal winding-up transmission, according to adjusted HS-DSCH transmission parameter transmission data; And the bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data is greater than the bandwidth that needs according to the HS-DSCH transmission parameter transmission data before adjusting.
7. a net control device is characterized in that, this net control device comprises:
Parameter acquiring unit is used to obtain the high speed downlink shared channel HS-DSCH transmission parameter of terminal;
The bandwidth determining unit is used for determining that the HS-DSCH transmission parameter that obtains according to described parameter acquiring unit transmits the bandwidth of data needs;
Described HS-DSCH transmission parameter when being used for the bandwidth determined in described bandwidth determining unit greater than the idle bandwidth of current present networks control appliance, is adjusted according to described idle bandwidth in the parameter adjustment unit;
Data transmission unit is used for according to the adjusted HS-DSCH transmission parameter transmission in described parameter adjustment unit data.
8. net control device as claimed in claim 7 is characterized in that, described parameter acquiring unit comprises:
Request transmitting unit is used for sending the HS-DSCH capabilities request message to the base station when definite user terminal need carry out high speed downlink packet access HSPDA business;
The response receiving element is used to receive the HS-DSCH capability distribution message of the HS-DSCH transmission parameter of the carried terminal of sending the base station;
Parameter extraction unit is used for from the HS-DSCH transmission parameter of the described terminal of described HS-DSCH capability distribution message extraction.
9. net control device as claimed in claim 7 is characterized in that, described bandwidth determining unit is used for:
Comprise at described HS-DSCH transmission parameter: when maximum medium access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval, determine to reach the bandwidth that described HS-DSCH transmittability needs according to following formula:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/and the HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for being provided with.
10. net control device as claimed in claim 7 is characterized in that, described parameter adjustment unit is used for:
Adjust HS-DSCH ability value in the described HS-DSCH transmission parameter according to following formula:
HS-DSCH ability value=(described idle bandwidth */described HS-DSCH transmission time interval)/(the MAC-d PDU length value * K of described maximum);
Described data transmission unit is used for:
MAC-d PDU length value, HS-DSCH transmission time interval and adjusted HS-DSCH ability value transmission data according to the maximum in the described HS-DSCH transmission parameter.
11., it is characterized in that this net control device further comprises as arbitrary described net control device among the claim 7-10:
The first bandwidth adjustment unit, be used for after the data transmission rate of determining the present networks control appliance surpasses predefined speed threshold value, adjust the HS-DSCH transmission parameter of all or part of terminal under the present networks control appliance, according to adjusted HS-DSCH transmission parameter transmission data; And the data transmission rate of transmitting the total bandwidth correspondence of data needs according to adjusted HS-DSCH transmission parameter is no more than described speed threshold value.
12., it is characterized in that this net control device further comprises as arbitrary described net control device among the claim 7-10:
The second bandwidth adjustment unit is used for adjusting the HS-DSCH transmission parameter that is carrying out the other-end of professional transmission under the present networks control appliance after determining described terminal winding-up transmission, according to adjusted HS-DSCH transmission parameter transmission data; And the bandwidth that needs according to adjusted HS-DSCH transmission parameter transmission data is greater than the bandwidth that needs according to the HS-DSCH transmission parameter transmission data before adjusting.
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| CN110166804A (en) * | 2018-02-11 | 2019-08-23 | 华为技术有限公司 | Realize method, equipment, communication system and the computer readable storage medium of video traffic |
| CN110166804B (en) * | 2018-02-11 | 2021-12-03 | 华为技术有限公司 | Method, device, communication system and computer readable storage medium for implementing video service |
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