CN101932003B - Method and equipment for processing congestion control - Google Patents
Method and equipment for processing congestion control Download PDFInfo
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- CN101932003B CN101932003B CN2009100875233A CN200910087523A CN101932003B CN 101932003 B CN101932003 B CN 101932003B CN 2009100875233 A CN2009100875233 A CN 2009100875233A CN 200910087523 A CN200910087523 A CN 200910087523A CN 101932003 B CN101932003 B CN 101932003B
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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 congestion control.
Background technology
Networking mode between wireless network control apparatus in existing 3-G (Generation Three mobile communication system) (RNC) and base station (Node B) as shown in Figure 1.
Be connected with two kinds of modes between RNC and 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 NodeB, direct physical connection might not be arranged, RNC and Node B can directly hang on transmission network simultaneously.
RNC and Node B need to distribute certain bandwidth while carrying out the business 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 to CBR, VBR, rtVBR, UBR, in the IP mode, different types of service is distinguished according to different DSCP.Guarantee the Qos of business by the business of priority scheduling higher priority.
Priority scheduling business according to type of service, in the situation that the Iub interface bandwidth abundance between RNC and NodeB can meet dispatching requirement, but it is inadequate to work as band width configuration, namely when the Iub interface bandwidth is less than the bandwidth that Node B air interface can send, existing scheme by carrying out abandoning of packet on transmitting terminal or 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 in prior art to exist following technical problem:
The mode of existing packet discard can cause the big ups and downs of user data, during data-bag lost, need upper TCP to be retransmitted, if the packet sequence number of losing is crucial sequence number, as the packet on upper strata can be divided into 6 Service Data Units (SDU), loss has occurred the 6th SDU, and the first five also will be retransmitted, user's speed is very unsettled in this case, and total service rate also can be less than the speed that the Iub interface bandwidth can be carried.
Visible, when RNC carries out transfer of data, if data bandwidth is inadequate, when speed that data send has surpassed the speed that the RNC interface bandwidth can carry, while transmitting data, can occur congested, thereby cause the situation of loss of data.
Summary of the invention
The embodiment of the present invention provides a kind of processing method and equipment of congestion control, thereby for solving when the prior art net control device transmits data the congested problem that causes loss of data that occurs.
The embodiment of the present invention provides a kind of processing method of congestion control, and the method comprises:
Net control device obtains the high speed downlink shared channel HS-DSCH transformation parameter of terminal; Determine the bandwidth needed according to described HS-DSCH transformation parameter transmission data;
When definite band is wider than the idle bandwidth of current described net control device, described net control device is adjusted described HS-DSCH transformation parameter according to described idle bandwidth, and according to the HS-DSCH transformation parameter transmission data after adjusting;
Described HS-DSCH transformation parameter comprises: maximum media access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval;
Determine the bandwidth needed according to described HS-DSCH transformation parameter transmission data according to following formula:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for arranging;
Described net control device is adjusted described HS-DSCH transformation parameter according to described idle bandwidth and is comprised one of following three kinds of methods:
Method one: according to following formula, adjust the HS-DSCH ability value in described HS-DSCH transformation parameter:
HS-DSCH ability value=(the described HS-DSCH transmission time interval of the idle bandwidth * of current I UB interface)/(the MAC-d PDU length value * K of described maximum);
Describedly according to the transmission of the HS-DSCH transformation parameter after adjusting data, comprise: according to MAC-d PDU length value, the HS-DSCH transmission time interval of the maximum in described HS-DSCH transformation parameter with the HS-DSCH ability value transmission data after adjusting;
Method two: the MAC-d PDU length value of adjusting the maximum in the HS-DSCH transformation 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);
Describedly according to the transmission of the HS-DSCH transformation parameter after adjusting data, comprise: according to the HS-DSCH transmission time interval in described HS-DSCH transformation parameter, HS-DSCH ability value with the MAC-d PDU length value transmission data of the maximum after adjusting;
Method three: according to following formula, adjust the HS-DSCH transmission time interval in the HS-DSCH transformation parameter:
The idle bandwidth of HS-DSCH transmission time interval=(maximum MAC-d PDU length value * HS-DSCH ability value * K)/current I UB interface;
Describedly pass the elm data according to the HS-DSCH transformation parameter after adjusting and comprise: according to MAC-d PDU length value, the HS-DSCH ability value of the maximum in described HS-DSCH transformation parameter with the HS-DSCH transmission time interval transmission data after adjusting;
The HS-DSCH transformation parameter that net control device obtains terminal comprises: net control device is determined when terminal need to be carried out high speed downlink packet access HSPDA business, is sent the HS-DSCH capabilities request message to base station; After base station receives described HS-DSCH capabilities request message, to described net control device, send HS-DSCH capability distribution message, the HS-DSCH transformation parameter of described HS-DSCH capability distribution message carried terminal; Described net control device extracts the HS-DSCH transformation parameter of described terminal from the described HS-DSCH capability distribution message received;
The processing method of this congestion control 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 transformation parameter of all or part of terminal under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And, data transmission rate corresponding to total bandwidth needed according to the transmission of the HS-DSCH transformation parameter after adjusting data is no more than described speed threshold value, and this speed threshold value is to be not less than 0 and be not more than as data transmission rate value corresponding to the total bandwidth of IUB interface assignment; During the HS-DSCH transformation parameter of all or part of terminal of net control device under adjusting the present networks control appliance, according to predefined following adjustment strategy, adjusted:
The preferential HS-DSCH transformation parameter of adjusting the terminal that service priority is lower, the MAC-d PDU length value of the maximum by priority in the HS-DSCH transformation parameter of minimum terminal, the HS-DSCH ability value, one or more turning down in the HS-DSCH transmission time interval, turn the data transmission rate of rear calculating IUB interface now down, if this data transmission rate still is greater than predefined speed threshold value, continue to adjust the HS-DSCH transformation parameter of the terminal that service priority is time low, until the total bandwidth that after adjusting, the transmission data need is no more than predefined speed threshold value, perhaps, by one or more the turning down in the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter of all terminals under the present networks control appliance, HS-DSCH ability value, HS-DSCH transmission time interval, make the total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting be no more than predefined speed threshold value.
The embodiment of the present invention provides a kind of net control device, and this net control device comprises:
Parameter acquiring unit, for obtaining the high speed downlink shared channel HS-DSCH transformation parameter of terminal;
The bandwidth determining unit, transmit for determining the HS-DSCH transformation parameter obtained according to described parameter acquiring unit the bandwidth that data need;
The parameter adjustment unit, for when the definite band of described bandwidth determining unit is wider than the idle bandwidth of current present networks control appliance, adjust described HS-DSCH transformation parameter according to described idle bandwidth;
Data transmission unit, for the HS-DSCH transformation parameter transmission data after adjusting according to described parameter adjustment unit;
Described bandwidth determining unit is used for:
At described HS-DSCH transformation parameter, comprise: when maximum media access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval, according to following formula, determine that the HS-DSCH transformation parameter obtained according to described parameter acquiring unit transmits the bandwidth that data need:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for arranging;
Described parameter adjustment unit is used for: the HS-DSCH ability value of adjusting described HS-DSCH transformation parameter according to following formula:
HS-DSCH ability value=(the described HS-DSCH transmission time interval of the idle bandwidth * of current I UB interface)/(the MAC-d PDU length value * K of described maximum);
Described data transmission unit is used for: according to MAC-dPDU length value, the HS-DSCH transmission time interval of the maximum of described HS-DSCH transformation parameter with the HS-DSCH ability value transmission data after adjusting;
Described parameter adjustment unit is used for: the MAC-d PDU length value of adjusting the maximum of HS-DSCH transformation 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);
Described data transmission unit is used for: according to the MAC-d PDU length value transmission data of the maximum after HS-DSCH ability value, HS-DSCH transmission time interval and the adjustment of described HS-DSCH transformation parameter;
Described parameter adjustment unit is used for: the HS-DSCH transmission time interval of adjusting the HS-DSCH transformation 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;
Described data transmission unit is used for: according to MAC-dPDU length value, the HS-DSCH ability value of the maximum of described HS-DSCH transformation parameter with the HS-DSCH transmission time interval transmission data after adjusting;
Described parameter acquiring unit comprises:
Request transmitting unit, for need to carry out high speed downlink packet access HSPDA business at definite user terminal the time, send the HS-DSCH capabilities request message to base station;
The response receiving element, for the HS-DSCH capability distribution message of the HS-DSCH transformation parameter that receives the carried terminal of sending base station;
Parameter extraction unit, for extracting the HS-DSCH transformation parameter of described terminal from described HS-DSCH capability distribution message;
This net control device further comprises:
The first bandwidth adjustment unit, after surpassing predefined speed threshold value for the data transmission rate determining the present networks control appliance, adjust the HS-DSCH transformation parameter of all or part of terminal under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And, data transmission rate corresponding to total bandwidth needed according to the transmission of the HS-DSCH transformation parameter after adjusting data is no more than described speed threshold value, and this speed threshold value is to be not less than 0 and be not more than as data transmission rate value corresponding to the total bandwidth of IUB interface assignment; During the HS-DSCH transformation parameter of all or part of terminal under adjusting the present networks control appliance, according to predefined following adjustment strategy, adjusted:
The preferential HS-DSCH transformation parameter of adjusting the terminal that service priority is lower, the MAC-d PDU length value of the maximum by priority in the HS-DSCH transformation parameter of minimum terminal, the HS-DSCH ability value, one or more turning down in the HS-DSCH transmission time interval, turn the data transmission rate of rear calculating IUB interface now down, if this data transmission rate still is greater than predefined speed threshold value, continue to adjust the HS-DSCH transformation parameter of the terminal that service priority is time low, until the total bandwidth that after adjusting, the transmission data need is no more than predefined speed threshold value, perhaps, by one or more the turning down in the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter of all terminals under the present networks control appliance, HS-DSCH ability value, HS-DSCH transmission time interval, make the total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting be no more than predefined speed threshold value.
In the scheme that the embodiment of the present invention provides, net control device obtains the HS-DSCH transformation parameter of terminal, determines the broadband needed according to described HS-DSCH transformation parameter transmission data; While being greater than the idle bandwidth of current I UB interface in definite broadband, net control device is adjusted the HS-DSCH transformation parameter according to idle bandwidth, and transmit data according to the HS-DSCH transformation parameter after adjusting by the IUB interface, thereby guarantee that the total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting is no more than the total bandwidth of distributing into 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.
The accompanying drawing explanation
The connected mode schematic diagram that Fig. 1 is RNC and base station in prior art;
The method flow schematic diagram that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet that Fig. 3 is tool the present embodiment of the present invention;
The device structure schematic diagram that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Thereby the congested problem that causes loss of data occurs during for fear of net control device transmission data, the embodiment of the present invention provides a kind of processing method of congestion control, in this method, net control device is turned the high speed descending sharing channel of terminal (HS-DSCH) transformation parameter down according to current idle bandwidth, makes the bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting 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 congestion control that the embodiment of the present invention provides specifically comprises the following steps:
Step 20: net control device obtains the high speed downlink shared channel HS-DSCH transformation parameter of terminal;
Step 21: net control device is determined the bandwidth needed according to the HS-DSCH transformation parameter transmission data that get;
Step 22: when definite band is wider than the idle bandwidth of current network control appliance, net control device is adjusted described HS-DSCH transformation parameter according to this idle bandwidth, makes the bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting be not more than current idle bandwidth;
Step 23: net control device according to the HS-DSCH transformation parameter after adjusting to the base-station transmission data.
In step 20, the concrete mode that net control device obtains the HS-DSCH transformation parameter of terminal can have following two kinds:
The first, at first, net control device, after signaling process (normal process in the 3GPP agreement at present) determines that user terminal need to carry out high speed downlink packet access (HSPDA) business, sends the HS-DSCH capabilities request message to base station; Then, after base station receives the HS-DSCH capabilities request message, to net control device, send HS-DSCH capability distribution message, the HS-DSCH transformation parameter of this HS-DSCH capability distribution message carried terminal; Finally, net control device extracts the HS-DSCH transformation parameter of terminal from the HS-DSCH capability distribution message received.
The second, in the business transmitting procedure, base station initiatively sends the HS-DSCH capability distribution message of the HS-DSCH transformation parameter of carried terminal to net control device.Net control device extracts the HS-DSCH transformation parameter of terminal from the HS-DSCH capability distribution message received.
The HS-DSCH transformation parameter specifically comprises: maximum media 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 means the number of each MAC-d PDU sent.The HS-DSCH transmission time interval means to carry out every this time interval the transmission of a MAC-d PDU.
In step 21, net control device can, according to following formula, be determined the bandwidth needed according to the HS-DSCH transformation parameter transmission data that get in step 20:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for arranging.K is the value arranged according to FP layer expense, and according to different types of service, this value is different.
In step 22, net control device is adjusted the HS-DSCH transformation parameter according to the idle bandwidth of current I UB interface, and its concrete grammar can adopt following three kinds:
The first, adjust the HS-DSCH ability value in the HS-DSCH transformation 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 of mode, net control device is according to the MAC-dPDU length value of the maximum in the HS-DSCH transformation parameter got in step 20, HS-DSCH transmission time interval with the HS-DSCH ability value after adjusting, by IUB interface transmission data.
The second, adjust the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter according to following formula:
Maximum MAC-d PDU length value=(the idle bandwidth * of current I UB interface/HS-DSCH transmission time interval)/(HS-DSCH ability value * K);
After adjusting maximum MAC-d PDU length value according to this kind of mode, net control device is according to the HS-DSCH ability value in the HS-DSCH transformation parameter got in step 20, HS-DSCH transmission time interval with the MAC-d PDU length value of the maximum after adjusting, by IUB interface transmission data.
The third, adjust the HS-DSCH transmission time interval of the maximum in the HS-DSCH transformation 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 of mode, net control device is according to the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter got in step 20, HS-DSCH ability value with the HS-DSCH transmission time interval after adjusting, by IUB interface transmission data.
Preferably, in order to adjust in real time the data transmission rate of IUB interface, when net control device discovery bandwidth resources are inadequate, need according to service priority, all users in system Already in to be carried out the adjustment of resource distribution, guarantee 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 transformation parameter of all or part of terminal under the present networks control appliance, according to the HS-DSCH transformation parameter after adjusting, by the IUB interface, transmit data; And the total bandwidth needed according to the transmission of the HS-DSCH transformation parameter after adjusting data is no more than predefined speed threshold value, this speed threshold value is to be not less than 0 and be not more than as data transmission rate value corresponding to the total bandwidth of IUB interface assignment.
During the HS-DSCH transformation parameter of all or part of terminal of net control device under adjusting the present networks control appliance, can be adjusted according to predefined adjustment strategy, for example, according to service priority, adjust, the preferential HS-DSCH transformation parameter of adjusting the terminal that service priority is lower, during concrete the adjustment, the MAC-d PDU length value of the maximum by priority in the HS-DSCH transformation parameter of minimum terminal, the HS-DSCH ability value, one or more turning down in the HS-DSCH transmission time interval, turn the data transmission rate of rear calculating IUB interface now down, if this data transmission rate still is greater than predefined speed threshold value, continue to adjust the HS-DSCH transformation parameter of the terminal that service priority is time low, by that analogy, until the total bandwidth that after adjusting, the transmission data need 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 transformation parameter of all terminals, HS-DSCH ability value, HS-DSCH transmission time interval under the present networks control appliance, make the total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting be no more than predefined speed threshold value.
Preferably, for resource re-allocation that terminal is discharged to other-end, net control device need to be preserved the band width configuration information of terminal under the present networks control appliance, and after certain terminal discharges bandwidth resources, the bandwidth resources that the free time is gone out are redistributed to still at the other-end that carries out business.Concrete, net control device, after definite terminal winding-up transmission, is adjusted the HS-DSCH transformation parameter that is carrying out the other-end of business transmission under the present networks control appliance, according to the HS-DSCH transformation parameter after adjusting, passes through IUB interface transmission data; And the band needed according to the HS-DSCH transformation parameter transmission data after adjusting is wider than the bandwidth needed according to the HS-DSCH transformation parameter transmission data before adjusting.
When net control device is carrying out the HS-DSCH transformation parameter of other-end of business transmission under adjusting the present networks control appliance, can be adjusted according to predefined adjustment strategy, for example, according to service priority, adjust, the preferential HS-DSCH transformation parameter of adjusting the terminal that service priority is higher, during concrete the adjustment, one or more the tuning up in the MAC-d PDU length value of the maximum by priority in the HS-DSCH transformation parameter of higher one or more terminals, HS-DSCH ability value, HS-DSCH transmission time interval.Perhaps, principle according to the mean allocation bandwidth is adjusted, soon one or more the tuning up in the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter of all terminals, HS-DSCH ability value, HS-DSCH transmission time interval under the present networks control appliance.、
Below with specific embodiment, invention is described:
Step 1:RNC signalling module is in the time need to carrying out business by HSDPA through the signaling process users, and by needed MAC-d stream, the parameters such as service priority are carried in resource allocation message issues RNC business sending module.
Step 2:RNC business sending module sends HS-DSCH Capacity Request (HS-DSCH capability requests) message to Node B;
Step 3:Node B returns to HS-DSCH Capacity Allocation (HS-DSCH capability distribution) message to RNC business sending module, comprise Maximum MAC-d PDU Length (maximum MAC-d PDU length), HS-DSCH Credits (HS-DSCH ability) in message, the HS-DSCH transformation parameters such as HS-DSCHInterval (HS-DSCH transmission time interval), HS-DSCH Repetition Period (HS-DSCH repetition period);
After step 4:RNC business sending module is received HS-DSCH capability distribution message, this message is sent to RNC resource judging module;
Step 5:RNC resource judging module records the HS-DSCH transformation parameter in HS-DSCH Capacity Allocation assignment messages, calculate the bandwidth needed according to these parameter transmission data simultaneously, if this bandwidth is not more than the idle bandwidth of current I UB interface, return to HS-DSCH Capacity Allocation Ack message to RNC business sending module, in HS-DSCH Capacity Allocation Ack message, entrained HS-DSCH transformation parameter is with entrained identical in HS-DSCH Capacity Allocation message;
If this band is wider than the idle bandwidth of current I UB interface, according to this idle bandwidth, the HS-DSCH transformation parameter in HS-DSCHCapacity Allocation assignment messages is turned down, make the bandwidth needed according to the transmission of the HS-DSCH transformation parameter after adjusting data be not more than the idle bandwidth of current I UB interface, and return to the HS-DSCHCapacity Allocation Ack message of carrying the HS-DSCH transformation parameter after adjustment to RNC business sending module;
Step 6:RNC business sending module sends data according to the HS-DSCH transformation parameter carried in HS-DSCH CapacityAllocation Ack message by the IUB interface.
Step 7: when new user accesses, repeat same 1-6 flow process.
Referring to Fig. 4, the embodiment of the present invention also provides a kind of net control device, and this net control device comprises:
Described parameter acquiring unit 30 comprises:
Request transmitting unit, for need to carry out high speed downlink packet access HSPDA business at definite user terminal the time, send the HS-DSCH capabilities request message to base station;
The response receiving element, for the HS-DSCH capability distribution message of the HS-DSCH transformation parameter that receives the carried terminal of sending base station;
Parameter extraction unit, for extracting the HS-DSCH transformation parameter of described terminal from described HS-DSCH capability distribution message.
Described bandwidth determining unit 31 for:
At described HS-DSCH transformation parameter, comprise: when maximum media access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval, according to following formula, determine and reach the bandwidth that described HS-DSCH transmittability needs:
The MAC--d PDU length value * HS-DSCH ability value of Band=[(maximum)/HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for arranging.
Described parameter adjustment unit 32 is for the HS-DSCH ability value of adjusting described HS-DSCH transformation 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 for:
According to the HS-DSCH ability value transmission data after MAC-d PDU length value, HS-DSCH transmission time interval and the adjustment of the maximum in described HS-DSCH transformation parameter.
Described parameter adjustment unit 32 is for the MAC-d PDU length value of adjusting the maximum of HS-DSCH transformation parameter according to following formula:
Maximum MAC-d PDU length value=(the idle bandwidth * of current I UB interface/HS-DSCH transmission time interval)/(HS-DSCH ability value * K);
Accordingly, described data transmission unit 33 for:
MAC-dPDU length value transmission data according to the maximum after the HS-DSCH ability value in described HS-DSCH transformation parameter, HS-DSCH transmission time interval and adjustment.
Described parameter adjustment unit 32 is for the HS-DSCH transmission time interval of adjusting the maximum of HS-DSCH transformation 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 for:
According to the HS-DSCH transmission time interval transmission data after MAC-d PDU length value, HS-DSCH ability value and the adjustment of the maximum in described HS-DSCH transformation parameter.
This net control device further comprises:
The first bandwidth adjustment unit 34, after surpassing predefined speed threshold value for the data transmission rate determining the present networks control appliance, adjust the HS-DSCH transformation parameter of all or part of terminal under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And data transmission rate corresponding to total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting is no more than predefined speed threshold value.
This net control device further comprises:
The second bandwidth adjustment unit 35, for after determining described terminal winding-up transmission, adjust the HS-DSCH transformation parameter that is carrying out the other-end of business transmission under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And the band needed according to the HS-DSCH transformation parameter transmission data after adjusting is wider than the bandwidth needed according to the HS-DSCH transformation parameter transmission data before adjusting.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, net control device obtains the HS-DSCH transformation parameter of terminal, determines the bandwidth needed according to described HS-DSCH transformation parameter transmission data; When definite band is wider than the idle bandwidth of current network control appliance, net control device is adjusted the HS-DSCH transformation parameter according to idle bandwidth, and according to the HS-DSCH transformation parameter transmission data after adjusting, thereby guarantee that the total bandwidth needed according to the HS-DSCH biography elm parameter transmission data after adjusting 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 and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (4)
1. the processing method of a congestion control, is characterized in that, the method comprises:
Net control device obtains the high speed downlink shared channel HS-DSCH transformation parameter of terminal; Determine the bandwidth needed according to described HS-DSCH transformation parameter transmission data;
When definite band is wider than the idle bandwidth of current described net control device, described net control device is adjusted described HS-DSCH transformation parameter according to described idle bandwidth, and according to the HS-DSCH transformation parameter transmission data after adjusting;
Described HS-DSCH transformation parameter comprises: maximum media access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval;
Determine the bandwidth needed according to described HS-DSCH transformation parameter transmission data according to following formula:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for arranging;
Described net control device is adjusted described HS-DSCH transformation parameter according to described idle bandwidth and is comprised one of following three kinds of methods:
Method one: according to following formula, adjust the HS-DSCH ability value in described HS-DSCH transformation parameter:
HS-DSCH ability value=(the described HS-DSCH transmission time interval of the idle bandwidth * of current I UB interface)/(the MAC-d PDU length value * K of described maximum);
Describedly according to the transmission of the HS-DSCH transformation parameter after adjusting data, comprise: according to MAC-d PDU length value, the HS-DSCH transmission time interval of the maximum in described HS-DSCH transformation parameter with the HS-DSCH ability value transmission data after adjusting;
Method two: the MAC-d PDU length value of adjusting the maximum in the HS-DSCH transformation 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);
Describedly according to the transmission of the HS-DSCH transformation parameter after adjusting data, comprise: according to the HS-DSCH transmission time interval in described HS-DSCH transformation parameter, HS-DSCH ability value with the MAC-d PDU length value transmission data of the maximum after adjusting;
Method three: according to following formula, adjust the HS-DSCH transmission time interval in the HS-DSCH transformation parameter:
The idle bandwidth of HS-DSCH transmission time interval=(maximum MAC-d PDU length value * HS-DSCH ability value * K)/current I UB interface;
Describedly according to the transmission of the HS-DSCH transformation parameter after adjusting data, comprise: according to MAC-d PDU length value, the HS-DSCH ability value of the maximum in described HS-DSCH transformation parameter with the HS-DSCH transmission time interval transmission data after adjusting;
The HS-DSCH transformation parameter that net control device obtains terminal comprises: net control device is determined when terminal need to be carried out high speed downlink packet access HSPDA business, is sent the HS-DSCH capabilities request message to base station; After base station receives described HS-DSCH capabilities request message, to described net control device, send HS-DSCH capability distribution message, the HS-DSCH transformation parameter of described HS-DSCH capability distribution message carried terminal; Described net control device extracts the HS-DSCH transformation parameter of described terminal from the described HS-DSCH capability distribution message received;
The processing method of this congestion control 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 transformation parameter of all or part of terminal under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And, data transmission rate corresponding to total bandwidth needed according to the transmission of the HS-DSCH transformation parameter after adjusting data is no more than described speed threshold value, and this speed threshold value is to be not less than 0 and be not more than as data transmission rate value corresponding to the total bandwidth of IUB interface assignment; During the HS-DSCH transformation parameter of all or part of terminal of net control device under adjusting the present networks control appliance, according to predefined following adjustment strategy, adjusted:
The preferential HS-DSCH transformation parameter of adjusting the terminal that service priority is lower, the MAC-d PDU length value of the maximum by priority in the HS-DSCH transformation parameter of minimum terminal, the HS-DSCH ability value, one or more turning down in the HS-DSCH transmission time interval, turn the data transmission rate of rear calculating IUB interface now down, if this data transmission rate still is greater than predefined speed threshold value, continue to adjust the HS-DSCH transformation parameter of the terminal that service priority is time low, until the total bandwidth that after adjusting, the transmission data need is no more than predefined speed threshold value, perhaps, by one or more the turning down in the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter of all terminals under the present networks control appliance, HS-DSCH ability value, HS-DSCH transmission time interval, make the total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting be no more than predefined speed threshold value.
2. the processing method of congestion control as claimed in claim 1, is characterized in that, the processing method of this congestion control further comprises:
Described net control device, after determining described terminal winding-up transmission, is adjusted the HS-DSCH transformation parameter that is carrying out the other-end of business transmission under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And the band needed according to the HS-DSCH transformation parameter transmission data after adjusting is wider than the bandwidth needed according to the HS-DSCH transformation parameter transmission data before adjusting.
3. a net control device, is characterized in that, this net control device comprises:
Parameter acquiring unit, for obtaining the high speed downlink shared channel HS-DSCH transformation parameter of terminal;
The bandwidth determining unit, transmit for determining the HS-DSCH transformation parameter obtained according to described parameter acquiring unit the bandwidth that data need;
The parameter adjustment unit, for when the definite band of described bandwidth determining unit is wider than the idle bandwidth of current present networks control appliance, adjust described HS-DSCH transformation parameter according to described idle bandwidth;
Data transmission unit, for the HS-DSCH transformation parameter transmission data after adjusting according to described parameter adjustment unit;
Described bandwidth determining unit is used for:
At described HS-DSCH transformation parameter, comprise: when maximum media access control dedicated stream MAC-d protocol Data Unit PDU length value, HS-DSCH ability value, HS-DSCH transmission time interval, according to following formula, determine that the HS-DSCH transformation parameter obtained according to described parameter acquiring unit transmits the bandwidth that data need:
The MAC-d PDU length value * HS-DSCH ability value of Band=[(maximum)/HS-DSCH transmission time interval] * K, wherein the bandwidth multiplication constant of K for arranging;
Described parameter adjustment unit is used for: the HS-DSCH ability value of adjusting described HS-DSCH transformation parameter according to following formula:
HS-DSCH ability value=(the described HS-DSCH transmission time interval of the idle bandwidth * of current I UB interface)/(the MAC-d PDU length value * K of described maximum);
Described data transmission unit is used for: according to MAC-dPDU length value, the HS-DSCH transmission time interval of the maximum of described HS-DSCH transformation parameter with the HS-DSCH ability value transmission data after adjusting;
Described parameter adjustment unit is used for: the MAC-d PDU length value of adjusting the maximum of HS-DSCH transformation 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);
Described data transmission unit is used for: according to the MAC-dPDU length value transmission data of the maximum after HS-DSCH ability value, HS-DSCH transmission time interval and the adjustment of described HS-DSCH transformation parameter;
Described parameter adjustment unit is used for: the HS-DSCH transmission time interval of adjusting the HS-DSCH transformation 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;
Described data transmission unit is used for: according to MAC-dPDU length value, the HS-DSCH ability value of the maximum of described HS-DSCH transformation parameter with the HS-DSCH transmission time interval transmission data after adjusting;
Described parameter acquiring unit comprises:
Request transmitting unit, for need to carry out high speed downlink packet access HSPDA business at definite user terminal the time, send the HS-DSCH capabilities request message to base station;
The response receiving element, for the HS-DSCH capability distribution message of the HS-DSCH transformation parameter that receives the carried terminal of sending base station;
Parameter extraction unit, for extracting the HS-DSCH transformation parameter of described terminal from described HS-DSCH capability distribution message;
This net control device further comprises:
The first bandwidth adjustment unit, after surpassing predefined speed threshold value for the data transmission rate determining the present networks control appliance, adjust the HS-DSCH transformation parameter of all or part of terminal under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And, data transmission rate corresponding to total bandwidth needed according to the transmission of the HS-DSCH transformation parameter after adjusting data is no more than described speed threshold value, and this speed threshold value is to be not less than 0 and be not more than as data transmission rate value corresponding to the total bandwidth of IUB interface assignment; During the HS-DSCH transformation parameter of all or part of terminal under adjusting the present networks control appliance, according to predefined following adjustment strategy, adjusted:
The preferential HS-DSCH transformation parameter of adjusting the terminal that service priority is lower, the MAC-d PDU length value of the maximum by priority in the HS-DSCH transformation parameter of minimum terminal, the HS-DSCH ability value, one or more turning down in the HS-DSCH transmission time interval, turn the data transmission rate of rear calculating IUB interface now down, if this data transmission rate still is greater than predefined speed threshold value, continue to adjust the HS-DSCH transformation parameter of the terminal that service priority is time low, until the total bandwidth that after adjusting, the transmission data need is no more than predefined speed threshold value, perhaps, by one or more the turning down in the MAC-d PDU length value of the maximum in the HS-DSCH transformation parameter of all terminals under the present networks control appliance, HS-DSCH ability value, HS-DSCH transmission time interval, make the total bandwidth needed according to the HS-DSCH transformation parameter transmission data after adjusting be no more than predefined speed threshold value.
4. net control device as claimed in claim 3, is characterized in that, this net control device further comprises:
The second bandwidth adjustment unit, for after determining described terminal winding-up transmission, adjust the HS-DSCH transformation parameter that is carrying out the other-end of business transmission under the present networks control appliance, according to the HS-DSCH transformation parameter transmission data after adjusting; And the band needed according to the HS-DSCH transformation parameter transmission data after adjusting is wider than the bandwidth needed according to the HS-DSCH transformation parameter transmission data before adjusting.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859152A (en) * | 2005-07-22 | 2006-11-08 | 上海华为技术有限公司 | Iub interface flow control plan |
| EP1926257A1 (en) * | 2006-11-27 | 2008-05-28 | Nokia Siemens Networks Gmbh & Co. Kg | Method for decoupling congestion control in a cascade of network elements of an UMTS radio access network |
| CN101340358A (en) * | 2007-07-04 | 2009-01-07 | 鼎桥通信技术有限公司 | Flow control method, system and flow control entity |
-
2009
- 2009-06-23 CN CN2009100875233A patent/CN101932003B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859152A (en) * | 2005-07-22 | 2006-11-08 | 上海华为技术有限公司 | Iub interface flow control plan |
| EP1926257A1 (en) * | 2006-11-27 | 2008-05-28 | Nokia Siemens Networks Gmbh & Co. Kg | Method for decoupling congestion control in a cascade of network elements of an UMTS radio access network |
| CN101340358A (en) * | 2007-07-04 | 2009-01-07 | 鼎桥通信技术有限公司 | Flow control method, system and flow control entity |
Non-Patent Citations (2)
| Title |
|---|
| "Iub/Iur Flow Control Mechanism for HSDPA";Siemens;《3GPP TSG RAN WG3 #23 Tdoc R3-012421》;20010831;全文 * |
| Siemens."Iub/Iur Flow Control Mechanism for HSDPA".《3GPP TSG RAN WG3 #23 Tdoc R3-012421》.2001, |
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