CN100442915C - Dispatching method for high speed data transmission in mobile communication system - Google Patents
Dispatching method for high speed data transmission in mobile communication system Download PDFInfo
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- CN100442915C CN100442915C CNB2005100370419A CN200510037041A CN100442915C CN 100442915 C CN100442915 C CN 100442915C CN B2005100370419 A CNB2005100370419 A CN B2005100370419A CN 200510037041 A CN200510037041 A CN 200510037041A CN 100442915 C CN100442915 C CN 100442915C
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Abstract
The present invention relates to mobile communication technology and discloses a scheduling method for high-speed data transmission in a mobile communication system so that the upstream and downstream combined scheduling is realized. In the present invention, upstream and downstream associated information is comprehensively utilized, such as user transmission rate information during upstream scheduling, upstream load information, CQI information during downstream scheduling, user transmission rates, downstream code resources, power resources, etc. The upstream and downstream integrative scheduling is executed, and the scheduling is realized by the united use of identical resources; upstream and downstream transmission rates are synchronously adjusted.
Description
Technical field
The present invention relates to mobile communication technology, particularly the high speed data transfer technology in 3G (Third Generation) Moblie (The ThirdGeneration is called for short " the 3G ") evolution technology.
Background technology
Third generation partner program (3rd Generation Partnership Project, be called for short " 3GPP ") promoted the standardization effort of 3G technology as the vital tissue of moving communicating field, the carrying of uplink and downlink business all is based on dedicated channel in its early stage protocol version, wherein, the message transmission rate that uplink and downlink can reach in the R99 version (Release 99, are called for short " R99 ") is 384 kilobits per seconds (Kbps).
Along with the development of mobile communication technology, 3G technology is also in constantly development evolution.Manyly need system that higher transmission rate and shorter time delay are provided to flow and data service such as video, Streaming Media and the download etc. of delaying having relatively high expectations, high speed downlink packet inserts (High Speed Downlink Packet Access, be called for short " HSDPA ") and high speed uplink packet to insert (High Speed Uplink Packet Access, abbreviation " HSUPA ") be exactly the important evolution of 3G technology.Be different from the scheduling of packet in the R99 version and retransmit by radio network controller (Radio Network Controller, be called for short " RNC ") control, the scheduling of packet and re-transmission etc. are by base stations control among HSDPA and the HSUPA, and this control faster better adaptive channel changes, reduces propagation delay time, increases data throughout.HSDPA and HSUPA can provide the peak rate up to 14.4 MBPSs (Mbps) and 5.76Mbps respectively, and the availability of frequency spectrum also is greatly improved.
HSDPA was introduced in 2002 in the version of 3GPP the 5th edition (Release 5, are called for short " R5 ") as down high-speed data bag access technology.HSDPA adopts shorter Transmission Time Interval (Transmission Timing Interval, be called for short " TTI ") and frame length (2ms or 10ms) to realize quick self-adapted control, use adaptive coding and modulation (Adaptive Modulationand Coding in physical layer, be called for short " AMC ") and mix automatic repeat requests (Hybrid Auto Repeat reQuest, be called for short " HARQ "), introduce 16 rank quadrature amplitude modulations (Quadrature Amplitude Modulation is called for short " QAM ") modulation and improve the availability of frequency spectrum.Among the HSDPA, the HARQ technology adopts multi-process, use stop-and-wait protocol (Stop And Wait, be called for short " SAW "), subscriber equipment (User Equipment, abbreviation " UE ") the ACK/NACK indication that whether the feedback designation data correctly receives after the reception data is so that base station (NodeB) determines re-transmission or send new data.The descending channel quality indication (Channel Quality Indicator is called for short " CQI ") that AMC specification requirement UE feedback measures is so that NodeB determines the code rate and the transformat of descending HSDPA data.
In order to realize the high-speed transfer of user's downlink data, HSDPA has increased two down physical channels and a uplink physical channel newly, they are respectively descending high-speed physical downlink shared channel (HS-PDSCH) (the High Speed Physical Downlink Control Channel that is used for carrying user data, be called for short " HS-PDSCH "), be used to carry descending High-Speed Shared Control Channel (the High Speed Shared Control Channel of the required signaling of demodulation companion data channel HS-PDSCH, be called for short " HS-SCCH) ", and the up Dedicated Physical Control Channel (High Speed Dedicated Physical Control Channel is called for short " HS-DPCCH ") that is used to carry feedback informations such as the ACK/NACK of UE and CQI.The base station knows by HS-DPCCH whether data are correctly received, if incorrect, will initiate to retransmit, otherwise send new data.
Among the HSDPA, operable descending sign indicating number resource and power resource are that a plurality of users share, the base station need be dispatched at descending sign indicating number resource and power resource, more effectively uses Radio Resource to make the multi-user under the wireless environment that is implemented in DYNAMIC COMPLEX, improves the throughput of whole sector.When implementing the HSDPA packet scheduling, dispatching algorithm can be according to the information of grasping in advance, quality of wireless channel CQI, the ACK/NACK that reports as sign indicating number resource available in each TTI and power resource, UE and priority that will transmission block etc., the optimum of implementing fast dispatch and Radio Resource in the multi-user uses, and improves the service efficiency of frequency spectrum.
HSDPA will optimize network to reduce the expense of every bit.Concerning operator, introducing HSDPA can increase the validity of the capacity of network carrying data, services, enhancing spectrum efficiency, the utilance that improves hardware resource, raising networking; Concerning domestic consumer, HSDPA means higher message transmission rate, shorter service reaction time and more reliable service.
HSUPA has been incorporated in 2004 in the version of 3GPP the 6th edition (Release 6, are called for short " R6 ") as the high speed uplink data packet access technique.Be similar to HSDPA, HSUPA adopts shorter TTI and frame length (2ms or 10ms) to realize quick self-adapted control, uses HARQ and based on the fast uplink dispatching technique of base station, has improved up spectrum efficiency.
In order to realize the high-efficiency transfer of user uplink data, HSUPA has increased two uplink physical channels and three down physical channels newly, they are respectively up enhancing dedicated data transmission channel (the Enhanced-DCH Dedicated Physical Data Channel that is used for carrying user data, be called for short " E-DPDCH "), be used to transmit accompanied by physical layer signaling, for the E-DPDCH demodulation provides the up enhancing Dedicated Control Channel of following signaling (Enhanced-DCH Dedicated Physical ControlChannel, be called for short " E-DPCCH "), be used to control absolute grant channel (the Enhanced-DCH Absolute Grant Channel of user's uplink speed, be called for short " E-AGCH ") and relative authorization channel (Enhanced-DCH Relative Grand Channel, be called for short " E-RGCH "), and be used to indicate the whether correct retransmission indicating chanel (E-DCH Hybrid ARQIndicator Channel is called for short " E-HICH ") of up process data transmission.Wherein, E-AGCH only exists in service wireless connections sub-district, is used to the peak transfer rate of indicating user uplink to transmit, and the frequency ratio of adjusting is lower; E-RGCH can exist in service wireless connections and non-service wireless connections sub-district, is used to indicate the user to adjust uplink speed by a fixed step size, and the frequency ratio of adjustment is higher, reaches as high as every TTI once.Among the HSUPA, the user knows by E-HICH whether data are correctly received, if incorrect, will initiate to retransmit, otherwise send new data.
Different with HSDPA is, among the HSUPA, user uplink sign indicating number resource and power resource are that each user exclusively enjoys, and the base station need not dispatched at up sign indicating number resource and power resource.But the unified transmission rate of up each user can produce corresponding interference at the base station receiving terminal among the HSUPA, the base station can ensure user's demodulation performance in the interference range that allows, surpass the scope of setting but disturb, just may make certain user's demodulation performance to ensure, so the basic principle of HSUPA base station scheduling is the interference level that control and permission user bring at the base station receiving terminal.The up fast dispatch in base station is according to the interference level and setting thresholding of current area, determine the transmitted data rates that user uplink allows, and when interference level is too high, can reduce the message transmission rate of user uplink fast, make uplink interference in the target zone of setting.
HSDPA and HSUPA technology will provide high performance service with low cost, and multimedia provides may in order to realize the real large-scale market-oriented mobile internet interconnection agreement of using (Internet Protocol is called for short " IP ").Because VoIP is the main driving of IMS and all-IP net, it also is the key of fixing and wireless two net unifications, therefore most important for mobile development in future, packet voice (Voice over IP based on HSDPA/HSUPA, abbreviation " VoIP ") is undoubtedly the solution that development potentiality is arranged in the future most, under the such high bandwidth situation of HSDPA/HSUPA, VoIP can provide the capacity higher than circuit switching.
When network is supported HSDPA and HSUPA simultaneously, both needed to consider up base station fast dispatch, also need to consider descending base station fast dispatch how to realize that the unified scheduling of uplink and downlink is exactly a problem that needs solution.
In the prior art scheme, the base station is carried out the fast dispatch of uplink and downlink respectively independently.
The base station fast dispatch algorithm of descending HSDPA carries out the priority users queuing according to information such as user's downlink data buffer queue priority, capacity, transmission data stand-by period length, CQI to downlink user, the user that priority the is high transmission downlink data that just can be scheduled, the user who is scheduled will be assigned with descending sign indicating number resource and power resource, and definite format of user data.The base station scheduling algorithm of HSDPA is only considered the distribution and the use of downlink resource, does not consider the uplink service situation.
The base station fast dispatch algorithm of up HSUPA is determined uplink interference level according to gross power in the bandwidth of current reception, and compares with the interior gross power of setting of target reception bandwidth, judges that according to remaining surplus up user allows the interference level that increases.The base station is according to user's upstream rate request, information such as indication information of whether being satisfied with and data re-transmission number of times, determine the user and the higher uplink bit rate of adjustment, and predict the interference level that adjusted transmission rate increases for the base station receiving terminal, make that total uplink interference level that base station cell receives is below target value set after the up fast dispatch.The base station scheduling algorithm of HSUPA is only considered uplink interference level, does not consider user's downlink business situation.
In actual applications, there is following problem in such scheme: the prior art scheme can cause the wasting of resources and be unfavorable for ensureing user's transmission rate, can't guarantee quality of services for users (Quality ofService, abbreviation " QoS "), when customer service is used HSDPA and HSUPA simultaneously, especially support that in the sub-district these problems are more serious under the very big situation of number of users specification.
Cause the main cause of this situation to be, the prior art scheme is carried out the scheduling of uplink and downlink independently, do not take all factors into consideration the state of affairs of uplink and downlink, may cause user's uplink and downlink message transmission rate not match, can't guarantee user's QoS.Simultaneously, because the schedule information that does not fully utilize uplink and downlink is to optimize transfer of data, can't better guarantee user's transmission rate, and increased the consumption of scheduling resource for the fast dispatch that same user carries out uplink and downlink respectively, cause resource waste, especially support in the sub-district that the number of users specification is very big, many community users scheduling etc. are handled resource requirement when higher, if the base station fast dispatch of uplink and downlink is independently carried out, the bigger waste of resource can be caused, the benefit that time delay is little and the more high aspect of message transmission rate is brought can't be made full use of.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of dispatching method of mobile communication system high speed transfer of data, makes the combined dispatching of uplink and downlink be achieved.
For achieving the above object, the invention provides a kind of dispatching method of mobile communication system high speed transfer of data, comprise following steps:
A carries out priority queueing to the user who uses high speed data transfer;
B determines the transmission rate that this user's down high-speed data transmits according to described user current channel quality and ascending load, determines the transmission rate of this user uplink high speed data transfer according to the current channel quality of described user, ascending load and dispatch request;
C is according to user's priority queueing, be followed successively by the user and distribute up-high speed data transmission resources and down high-speed data transfer resource, comprise: the transmission rate of the up-high speed transfer of data that is determined according to step B, be described user uplink link assignment up-high speed data transmission resources, the transmission rate that the down high-speed data that is determined according to step B transmits is described user's downlink allocation down high-speed data transfer resource.
Wherein, before described step C, also comprise following steps:
If the transmission rate of described up-high speed transfer of data or the transmission of described down high-speed data changes, then adjust the described down high-speed data transmission of respective user or the transmission rate of described up-high speed transfer of data synchronously.
In this external described method, in the described steps A, described user comprises delay sensitive service-user and the insensitive service-user of time delay.
In this external described method, when the insensitive service-user of described time delay was carried out described priority queueing, priority was followed successively by from high to low: have the user of up-downgoing high speed data transfer business simultaneously, only have a user of down high-speed data transport service and only have the user of up-high speed data transmission service.
In this external described method, when the user of every kind of described business is carried out described priority queueing, also comprise following steps:
The user that it is good that A1 is channel quality is provided with higher priority;
The result that A2 lines up to described steps A 1 medium priority according to described user's propagation delay time information adjusts.
In this external described method, described priority queueing refreshes according to the minimum transfer time interval TTI of uplink downlink.
In this external described method,,, forbid improving the transmission rate of down high-speed data transmission for the business that needs the up-downgoing rate-matched if described ascending load is excessive; As if described bad channel quality, then forbid improving the transmission rate of up-high speed transfer of data.
In this external described method, among the described step C, described resource comprises descending sign indicating number resource and power resource, described resource dynamic configuration.
In this external described method, the Serving cell of described up-high speed transfer of data and the transmission of described down high-speed data is a sub-district, and the upstream rate adjustment of More Soft Handoff sub-district, base station and descending direct-cut operation transfer of data are unified to be handled.
In addition, described method is used in 3G (Third Generation) Moblie and evolution scheme thereof, and described up-high speed transfer of data and the transmission of described down high-speed data are respectively the high speed uplink packet access and high speed downlink packet inserts.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, the relevant information of comprehensive utilization uplink and downlink, the CQI information when the user's transmission rate information during uplink scheduling, uplink load information and descending scheduling for example, user's transmission rate, information such as descending sign indicating number resource and power resource etc., the integrated dispatch that carries out uplink and downlink, the identical resource of the unified use of this scheduling is realized, and the uplink and downlink transmission rate is adjusted synchronously.
Difference on this technical scheme, brought comparatively significantly beneficial effect, promptly at first, because the present invention program combines the relevant information of up-downgoing, thereby use the more reference information can be during scheduling so that dispatching algorithm is more accurate, more help guaranteeing user's transmission rate, ensure user's QoS;
The second, the present invention program only needs scheduling when the cover scheduling resource can be realized the up-downgoing business, therefore saves the scheduling resource of base station more, saves the operating cost of operator;
The 3rd, the mode of up-downgoing isochronous schedules of the present invention and adjustment has been avoided the unmatched situation of up-downgoing speed, and the wasting of resources of avoiding speed not match causing and transmission quality descend;
The 4th, for the real time business of carrying, scheduling scheme of the present invention can better provide performance guarantee, for high-speed data service carrying real time business provides possibility, can better meet the development of future mobile communications.
Description of drawings
Fig. 1 is the flow process of dispatching method of the mobile communication system high speed transfer of data of first preferred embodiment according to the present invention;
Fig. 2 is the flow process that the user is carried out priority queueing of second preferred embodiment according to the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The present invention program merges the method for base station uplink scheduling and descending scheduling, at the user but not independent uplink service or downlink business dispatch.
For the user who is scheduled, the transmission rate of its uplink and downlink link can be adjusted synchronously, and the transmission rate of upstream or downstream link is determined by the relevant information of taking all factors into consideration uplink and downlink again.
Realization combined dispatching for convenience, the Serving cell unification that Serving cell that the present invention also inserts the up-high speed packet and down high-speed data bag insert is a sub-district, is determined the transmission of user's up-downgoing data by the scheduler of this sub-district.
At first, owing to the present invention is directed to the user and dispatch, and the transmission rate of uplink and downlink link can adjust synchronously, and therefore can avoid occurring user's up-downgoing transmits unmatched situation, guarantees user's QoS; Simultaneously, because the present invention program's uplink and downlink unification is dispatched, the uplink and downlink scheduling uses unified scheduling resource to carry out, and can avoid the wasting of resources of using different scheduling resources to cause respectively when uplink and downlink are independently dispatched in the prior art.
For better explanation the present invention, describe below in conjunction with preferred embodiment of the present invention and accompanying drawing.
The flow process of the dispatching method of the mobile communication system high speed transfer of data of first preferred embodiment as shown in Figure 1 according to the present invention.
At first, enter step 110, the user is carried out priority queueing.Wherein, during the User Priority queuing, mainly consider User Priority, type of service, CQI indication and user QoS etc.Need to prove that in actual conditions, the method for priority queueing is a lot, and may dynamically adjust according to the actual transmissions situation.In the present invention's first preferred embodiment, the main principle of priority queueing is the throughput that satisfies user QoS as far as possible and increase system as far as possible.
Then enter step 120, comprehensive uplink and downlink relevant information decision uplink and downlink transmission rate.Wherein, up relevant information can be ascending load surplus and user's a dispatch request information, and descending relevant information can be the CQI indication of UE feedback.
In the present invention's first preferred embodiment, the current C QI and the current ascending load surplus that report according to UE determine downlink transfer speed.Determine the mode of downlink transfer speed to compare with the current C QI that prior art only reports according to UE, the present invention has also considered the ascending load surplus relevant with transmitting uplink data, this mainly is to consider if current ascending load is too high or overload, need the business of up-downgoing rate-matched for some, descending transmission rate does not allow to promote, otherwise downstream rate promotes and can further increase ascending load, causes the system uplink decreased performance.For example, transmission control protocol/internetworking protocol (Transmission Control Protocol/Internet Protocol, abbreviation " TCP/IP ") needs feedback information, the lifting of descending TCP/IP transmission rate can cause the increase of corresponding uplink feedback information, thereby increase ascending load, if this moment, ascending load was excessive,, should not allow even descendingly can improve transmission rate yet.Those of ordinary skill in the art understands, the prior art scheme is independent dispatches descending and up, the situation of downlink transfer speed may appear still promoting under the too high situation of ascending load, the uplink quality will deteriorate significantly, cause the total quality of service of system to descend, thereby cause the reduction of user satisfaction.
In the present invention's first preferred embodiment, the dispatch request information of the current C QI indication that reports according to UE, current ascending load surplus and user uplink is united decision uplink speed.Only determine the mode of uplink speed to compare with prior art according to the dispatch request information of current ascending load surplus and user uplink, the present invention program has also considered the current C QI indication decision uplink speed that the UE relevant with downlink data transmission reports, this mainly is to consider if CQI indicates current channel quality poor, even then the dispatch request information of user uplink wishes that the transmitting uplink data that can provide very high does not allow yet, because too high data rate will cause demodulation performance to be protected.In general, when not having transmit diversity, the CQI indicated value increases by 3 grades can be used to assess the up transmission rate that can reach descending.In addition, in the present invention's first preferred embodiment, also whether allow to adjust,, then need to consider to reduce higher uplink bit rate if current ascending load transships according to current ascending load surplus decision.
Then enter step 130, judge whether user's upstream or downstream speed is changed,, otherwise enter step 150 if then enter step 140.In the present invention's first preferred embodiment, if user's upstream or downstream speed is changed, the business that then needs raising synchronously or reduce etc. for this up-downgoing speed of data service, the TCP/IP of symmetry, for fear of the wasting of resources, prevent the unmatched situation of up-downgoing speed, the present invention program need adjust the downlink or uplink speed of this user's correspondence.
If user's upstream or downstream speed is changed, then in step 140, adjust the downlink or uplink speed of this user's correspondence synchronously.Wherein, the overall principle of isochronous schedules is when user's downlink transmission is scheduled, and considers simultaneously whether uplink data transmission rates needs to adjust.Those having ordinary skill in the art will appreciate that, this synchronous adjustment is of practical significance very much, because the channel quality indication can reflect up-downgoing quality of channel quality simultaneously, especially for the up-downgoing data service (comprising the delay sensitive business) of symmetry, after downstream data rate adjusts according to channel quality, uply also should do corresponding adjustment; In addition, if the user has only downstream data traffic, during then because of the TCP/IP transfer of data, the up transmission confirmation that needs is given server, if the downstream data traffic transmission rate is high more, require the transmission rate of up feedback also high more, in general, descending TCP/IP data peaks speed reaches about 2Mbps, and then the uplink peak rate need reach 384Kbps.Because system provides the message transmission rate that can reach according to the channel quality quality, therefore the downstream rate fluctuation may be bigger, in order to make uplink transmission data mate the demand of downlink data transmission, when combined dispatching, if the high-speed transfer of long period, then, improved the transmission rate of up feedback server confirmation like this, reduced the loopback propagation delay time in requisition for the speed that improves uplink.
In step 150, dispose the resource of transmitting needs for this user according to user's priority queueing and the speed that is assigned with.
In the present invention's first preferred embodiment, in the step 150, at first, the user uplink transmission rate definite according to scheduling, be user uplink link assignment HSUPA resource, comprise: the user uplink link allow to arrive the interference level of base station receiving terminal, in order to realize resources such as descending power that HSUPA needs and descending code channel.If the user uplink transmitted data rates does not need to adjust, then E-AGCH, E-RGCH do not send, and promptly do not need to send the descending power and the code channel resource of these two channels; Feed back the affirmation information that current HSUPA upstream data receives the correctness indicating channel if desired, then need to take descending sign indicating number resource and power resource.Can dynamically determine the resource that down channel takies according to current online HSUPA user, and determine the actual use amount of sign indicating number resource and power resource, thereby avoid the wasting of resources of adopting fixing descending sign indicating number resource and power resource allocation to bring according to HSUPA user's additions and deletions situation.
Then, the user's downlink transfer speed according to scheduling is determined is the sign indicating number resource and the power resource of user's downlink allocation HSDPA needs.Need to prove, in the present invention's first preferred embodiment,, determine whether to satisfy descending transmission rate,, will also need to adjust downlink transfer speed if can't satisfy according to descending remaining sign indicating number resource and power resource.
At last, according to user's queue priority, distribute ascending resource and downlink resource according to above-mentioned method for successively the user.With descending sign indicating number resource and power resource is benchmark, if the ascending load resource is at first depleted, then considers the user at priority query, according to transmission rate and average repeat time, calculates
Maximum user according to user's TFS Transport Format Set of configuration, selects wherein littler user uplink transmission rate, if can't meet the demands, choose second user who needs reduction of speed according to principle of identity, carry out same treatment, and the like, up to the requirement of satisfying the ascending load resource.Like this, continue dispatched users at downlink resource and ascending resource, up to runs out of resource sets.Wherein, TFC
UL_iBe higher uplink bit rate, RSN
Avg_iBe average repeat time.
Based on the present invention's first preferred embodiment, in the present invention's second preferred embodiment, the flow process that the user is carried out priority queueing as shown in Figure 2.
At first, enter step 210, carry out the priority queueing of delay sensitive service-user according to CQI and up-downgoing time delay.In this step, at first the CQI according to user feedback carries out priority queueing, the User Priority height that channel quality is good; Then, for the time delay that guarantees the delay sensitive business meets the demands, also according to the maximum delay T that eats dishes without rice or wine to transmit that allows
Uu_MaxDelayAnd data delay T to be sent such as user's up-downgoing data
UL_WaitAnd T
DL_WaitCarry out the correction of priority queueing, if
C wherein
ThresholdFor setting thresholding, then this user is made as limit priority.
Then, enter step 220, carry out the insensitive business of time delay and have the User Priority queuing of up-downgoing business simultaneously according to CQI and current up-downgoing transmission rate and time delay.In this step, at first still the CQI according to user feedback carries out priority queueing; Then, according to the current downlink transmission data rate TFC of user
DL_iWith stand-by period T
DL_Wait, and up user's transmission rate TFC
UL_iWith stand-by period T
UL_WaitRevise, and TFC is set
DL_i* T
DL_Wait+ TFC
UL_i* T
UL_WaitMaximum User Priority is the highest.
Then, enter step 230, it is insensitive and the user's of downlink business priority queueing only arranged to carry out time delay according to CQI and downlink transfer speed and time delay.Since usually downstream data traffic use be upstream data service use more than 2 times, so the simple transmitting uplink data of the priority ratio of downlink data transmission is higher.In this step, at first the CQI according to user feedback carries out priority queueing; Then according to the current downlink transmission data rate TFC of user
DL_iWith stand-by period T
DL_Wait, TFC is set
DL_i* T
DL_WaitMaximum User Priority is the highest.
At last, enter step 240, it is insensitive and the user's of uplink service priority queueing only arranged to carry out time delay according to CQI and uplink speed and time delay.In this step, equally at first the CQI according to user feedback carries out priority queueing to the user; Then according to the current higher uplink bit rate TFC of user
UL_iWith stand-by period T
UL_WaitCarry out the priority queueing correction, TFC is set
UL_i* T
UL_WaitMaximum User Priority is the highest.
Need to prove, in the present invention's second preferred embodiment on the basis, the present invention's the 3rd preferred embodiment is after finishing above-mentioned User Priority queuing, need be according to the abnormal conditions of some transfer of data, the User Priority formation that sequences is revised, for example, if the user has fed back dissatisfied (Unhappy bit) information in HSUPA inserts, then in the priority orders that above-mentioned user sequences, these users are taken out the front that is placed on priority query.
In order to guarantee user's subjective feeling, prevent all very long situation of up-downgoing time delay, in the present invention's the 4th preferred embodiment, business for up-downgoing data transmission delay sensitivity, fully ensureing under the situation of up-downgoing time delay demand, if descending or uplink time delay when excessive, the transmitting and scheduling of respective opposed need improve the priority guarantee.
In order to guarantee the real-time of User Priority queuing, in the present invention's the 5th preferred embodiment, the User Priority queuing refreshes according to the minimum TTI of uplink downlink.
Realize the needed scheduling resource of up-downgoing combined dispatching mentioned above in order to save, in the present invention's the 6th preferred embodiment, the Serving cell unification of the Serving cell of HSUPA and HSDPA is a sub-district, is determined the transmission of user's up-downgoing data by the scheduler of this sub-district.The Serving cell of HSUPA is unified for behind the identical sub-district with the Serving cell of HSDPA, and the Serving cell of HSUPA judges that can insert the sub-district, place according to current HSDPA determines, thereby makes the Serving cell judgement of HSUPA just become very simple.The upstream rate adjustment of base station soft handover/More Soft Handoff sub-district and descending direct-cut operation data transmission scheduling are unified to be handled.The speed of the E-RGCH carrying of sub-district, More Soft Handoff place is adjusted signaling and is got identical value Min{RG
i, the RG span is-1,0,1, the RG value of scheduling is independently judged in different More Soft Handoffs sub-district, but Min{RG is adopted in order to make descending E-RGCH channel send identical RG value in the base station
iPrinciple gets identical value and sends to the user, the user separates timing and can adopt high specific to merge the demodulation performance that improves the RG value, during descending direct-cut operation in the buffer memory of different More Soft Handoffs sub-district descending data to be sent realize smoothly moving new sub-district, and the Radio Resource that does not need RNC is controlled (Radio Resource Control, abbreviation " RRC ") layer retransmits, otherwise can cause excessive time delay.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. the dispatching method of a mobile communication system high speed transfer of data is characterized in that, comprises following steps:
A carries out priority queueing to the user who uses high speed data transfer;
B determines the transmission rate that this user's down high-speed data transmits according to described user current channel quality and ascending load, determines the transmission rate of this user uplink high speed data transfer according to the current channel quality of described user, ascending load and dispatch request;
C is according to user's priority queueing, be followed successively by the user and distribute up-high speed data transmission resources and down high-speed data transfer resource, comprise: the transmission rate of the up-high speed transfer of data that is determined according to step B, be described user uplink link assignment up-high speed data transmission resources, the transmission rate that the down high-speed data that is determined according to step B transmits is described user's downlink allocation down high-speed data transfer resource.
2. the dispatching method of mobile communication system high speed transfer of data according to claim 1 is characterized in that, before described step C, also comprises following steps:
If the transmission rate of described up-high speed transfer of data or the transmission of described down high-speed data changes, then adjust the described down high-speed data transmission of respective user or the transmission rate of described up-high speed transfer of data synchronously.
3. the dispatching method of mobile communication system high speed transfer of data according to claim 1 is characterized in that, in the described steps A, described user comprises delay sensitive service-user and the insensitive service-user of time delay.
4. the dispatching method of mobile communication system high speed transfer of data according to claim 3, it is characterized in that, when the insensitive service-user of described time delay was carried out described priority queueing, priority was followed successively by from high to low: have the user of up-downgoing high speed data transfer business simultaneously, only have a user of down high-speed data transport service and only have the user of up-high speed data transmission service.
5. the dispatching method of mobile communication system high speed transfer of data according to claim 4 is characterized in that, when the user of every kind of described business is carried out described priority queueing, also comprises following steps:
The user that it is good that A1 is channel quality is provided with higher priority;
The result that A2 lines up to described steps A 1 medium priority according to described user's propagation delay time information adjusts.
6. the dispatching method of mobile communication system high speed transfer of data according to claim 1 is characterized in that, described priority queueing refreshes according to the minimum transfer time interval TTI of uplink downlink.
7. the dispatching method of mobile communication system high speed transfer of data according to claim 1 is characterized in that, if described ascending load is excessive, for the business that needs the up-downgoing rate-matched, forbids improving the transmission rate of down high-speed data transmission; As if described bad channel quality, then forbid improving the transmission rate of up-high speed transfer of data.
8. the dispatching method of mobile communication system high speed transfer of data according to claim 1 is characterized in that, among the described step C, described resource comprises descending sign indicating number resource and power resource, described resource dynamic configuration.
9. the dispatching method of mobile communication system high speed transfer of data according to claim 1, it is characterized in that, the Serving cell of described up-high speed transfer of data and the transmission of described down high-speed data is a sub-district, and the upstream rate adjustment of base station soft handover/More Soft Handoff sub-district and the unification of descending direct-cut operation transfer of data are handled by the Serving cell scheduling.
10. the dispatching method of mobile communication system high speed transfer of data according to claim 1, it is characterized in that, described method is used in 3G (Third Generation) Moblie and evolution scheme thereof, and described up-high speed transfer of data and the transmission of described down high-speed data are respectively the high speed uplink packet access and high speed downlink packet inserts.
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| EP2171939B1 (en) * | 2007-07-18 | 2016-09-07 | Telefonaktiebolaget LM Ericsson (publ) | Scheduling method, base station and computer program product |
| CN101399605B (en) * | 2007-09-25 | 2012-07-18 | 中兴通讯股份有限公司 | VoIP bearing method in time division synchronous CDMA access system |
| CN101414954B (en) * | 2007-10-16 | 2011-08-10 | 中兴通讯股份有限公司 | Business integration scheduling method for OFDMA system |
| CN101686554B (en) * | 2008-09-24 | 2012-12-19 | 中兴通讯股份有限公司 | Method, device and terminal for realizing system scheduling |
| CN101990255A (en) * | 2009-08-05 | 2011-03-23 | 中兴通讯股份有限公司 | Uplink and downlink redistribution method and device |
| WO2011038529A1 (en) * | 2009-09-29 | 2011-04-07 | 上海贝尔股份有限公司 | Scheduling method and scheduler |
| CN101790215B (en) * | 2009-12-30 | 2016-03-30 | 华为技术有限公司 | Resource regulating method, device and base station |
| CN101742567B (en) * | 2009-12-30 | 2012-09-26 | 中兴通讯股份有限公司 | Method and device for ensuring speed of high-speed packet access service |
| CN102158883A (en) * | 2010-02-11 | 2011-08-17 | 普天信息技术研究院有限公司 | Method and device for retrieving radio access bearer |
| CN108770067B (en) * | 2018-05-23 | 2023-01-31 | 京信网络系统股份有限公司 | Resource allocation method, device, base station and storage medium |
| CN114285800A (en) * | 2021-12-17 | 2022-04-05 | 瓴盛科技有限公司 | Congestion adjustment method and device for TCP data flow |
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