CN101527965B - Method and system for improving uplink service quality - Google Patents
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Abstract
The invention discloses a method for improving uplink service quality. The method comprises that: a base station receives time delay parameters of different logic channels configured by a base station controller and dispatching information initially reported by each user terminal, and calculates lapsed time of the top priority logic channel of each user terminal; dispatching priority of the top priority logic channel in each user terminal is calculated according to the lapsed time and the dispatching information, and the user terminal of the logic channel with the top dispatching priority is dispatched; updated dispatching information transmitted by the user terminal with the top dispatching priority is received, and lapsed time of the logic channel with the top dispatching priority is updated; and calculation of the dispatching priority is continuously executed, and the dispatching is executed, until transmission of the uplink data dispatching of each user terminal is completed. The invention simultaneously discloses a system for improving the uplink service quality. The method and the system consider the priority and time delay requirement of each logic channel while carrying out service dispatching, thereby improving the QoS requirement of uplink service.
Description
Technical field
The present invention relates to the communication technology, be specifically related to a kind of method and system that improves up-link service quality.
Background technology
Current, the 3G (Third Generation) Moblie technology enters the practical stage successively.In order to improve up access capability, Frequency Division Duplexing (FDD) (Frequency Division Duplex, FDD) and time division duplex (Time Division Duplex, TDD) technology has been introduced up enhancing (Enhanced Uplink) technology in succession in the standard of 3GPP, to on the high speed/downlink grouped inserts that (High Speed Uplink/Downlink Packet Access HSUPA/HSDPA) does further to optimize.
The subscriber equipment of HSUPA (User Equipment, UE) need carry out multiple business, therefore each UE comprises a plurality of logic channels, the different business of carrying on the different logic channels, UE is with schedule information (Scheduling Information, SI) send to NodeB, comprise following content among the described SI, as shown in table 1:
| SNPL | Serving cell and adjacent sub-district path loss information |
| UPH | The ratio of maximum transmission power that UE can use and reference value and path loss, the dump power that expression UE can use |
| HLBS | Highest priority data accounts for the ratio of total buffer memory |
| TEBS | Total E-DCH buffer status |
| HLID | Highest priority logical channel ID |
Table 1
Dispatching algorithm at present commonly used is that the priority according to the Different Logic channel of each UE sorts, the i.e. pairing logic channel of HLID among the SI that reports according to each UE, select the highest logic channel of its medium priority, the UE under this logic channel is carried out the uplink service scheduling; After loaded service has been dispatched on the logic channel of described limit priority, network side sorts according to priority to each logic channel of remainder again, select the highest logic channel of its medium priority to proceed scheduling, this logic channel may belong to same UE with the logic channel of last time scheduling, also may belong to other UE.
Prior art is when being selected logical channel assignment resource, method according to maximization transmission highest priority data is carried out, promptly according to TEBS and HLBS, selection percentage equals the resource allocation of HLBS to described logic channel with limit priority, with service quality (QoS) demand of preferential assurance high-priority service from total buffer memory.
But, in the service dispatching of reality, not only there is the difference of priority height order in miscellaneous service on the Different Logic channel, the time delay demand of miscellaneous service there are differences too, therefore, this method of in the scheduled transmission process, only considering highest priority data of prior art, time delay demand owing to the miscellaneous service of not considering to carry on the logic channel, therefore may cause the lower professional stand-by period of some priority longer, can't be dispatched timely thereby carry this professional logic channel, also just can't be satisfied the time delay demand of described business; Further, if the highest priority data of UE is treating all in the data dispatching that proportion hour, then this UE lower-priority data of all treating to account in the data dispatching large percentage can access the chance of scheduling will be less, thereby cause the performance of this UE poor.
As seen, time delay demand that NodeB can't the integrated logic channel in the prior art and priority order carry out the uplink service scheduling.
Summary of the invention
The embodiment of the invention provides a kind of method and system that improves up-link service quality, and comprehensively time delay demand and priority order carry out the uplink service scheduling.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of method that improves up-link service quality, this method comprises:
The delay parameter of the Different Logic channel of base station reception base station controller configuration and the schedule information that each user terminal initially reports, calculate lapse of time of highest priority logical channel in each user terminal respectively, described lapse of time utilizes this limit priority logic communication to dispatch described data institute elapsed time for there being data will send to the base station from buffer memory;
Calculate the dispatching priority of highest priority logical channel in each user terminal respectively according to described lapse of time and schedule information, the user terminal under the highest logic channel of dispatching priority is dispatched;
Receive the schedule information of the renewal of the highest user terminal transmission of described dispatching priority, upgrade lapse of time of the highest logic channel of dispatching priority, continue then to carry out the calculating of described dispatching priority and carry out described scheduling, up to the uplink data scheduling transmission of each user terminal is finished.
A kind of system that improves up-link service quality comprises base station controller, user terminal and base station;
Described base station controller, the delay parameter of configuration Different Logic channel also sends to the base station;
Described base station, the schedule information that reports for the first time according to the delay parameter that receives and user terminal, calculate lapse of time of highest priority logical channel in each user terminal respectively, described lapse of time for from buffer memory, have data to send to the base station utilize this highest priority logical channel dispatch described data institute elapsed time obtain comprise highest priority logical channel the T_lapse of lapse of time at interior various list parameters, and the initial value of the various list parameters of non-highest priority logical channel is set; Calculate the dispatching priority of highest priority logical channel in each user terminal respectively according to described lapse of time and schedule information, the user terminal under the highest logic channel of dispatching priority is dispatched; Receive the schedule information of the renewal of the highest user terminal transmission of described dispatching priority, upgrade lapse of time of the highest logic channel of dispatching priority, continue then to carry out the calculating of described dispatching priority and carry out described scheduling, up to the uplink data scheduling transmission of each user terminal is finished;
Described user terminal carries out reporting of schedule information, and carries out transmission of uplink data according to the resource of base station assigns.
As seen from the above technical solutions, the method and system of this raising up-link service quality of the embodiment of the invention, obtain time delay demand and informing base station by delay parameter mapping with different business, the base station when carrying out service dispatching except the priority of considering each logic channel, also consider the time delay demand of this Channel Transmission business simultaneously, thereby improve the QoS demand of uplink service.
Description of drawings
Fig. 1 is the schematic flow sheet that improves the method for up-link service quality in the embodiment of the invention.
Fig. 2 is the schematic flow sheet that carries out the concrete example of uplink service scheduling in the embodiment of the invention.
Fig. 3 is the composition structural representation that improves the system of up-link service quality in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The embodiment of the invention provides a kind of method that improves up-link service quality, flow process as shown in Figure 1, comprising:
Step 101:RNC disposes the delay parameter of UE Different Logic channel to NodeB.
At RAB (Radio Access Bearer, RAB) configuring request and RB (Radio Bearer, radio bearer) in the process such as foundation, UE and core net (Core Network, CN) consult to determine service quality (Quality of Service, QoS) parameter, and RNC and UE are given in configuration respectively.RNC is by NBAP (NodeB Application Part in the prior art, base station application part) agreement is only given NodeB with the parameter configuration such as priority of each logic channel, and the embodiment of the invention further adds the time delay demand of the every business that is carried on the Different Logic channel in the NBAP agreement, a kind of feasible method is to strengthen transmission channel (Enhanced Dedicated Transport Channel, E-DCH) delay parameter that adds the Different Logic channel in the logic channel message, the value of this parameter is set by high level in advance according to the scope of loaded service type and time delay permission separately.
Step 102: according to the SI that UE reports for the first time, NodeB calculates lapse of time of highest priority logical channel among each UE, and described lapse of time utilizes this logic channel to dispatch described data institute elapsed time for there being data will send to NodeB from buffer memory.
There are mapping relations between the time delay demand that in the NBAP agreement, is provided with in the delay parameter T_threshold of described each logic channel and the step 101 (Discard Timer), can be expressed as: T_threshold=f (Discard Timer), for example a kind of possible mapping relations are: T_threshold=Discard Timer-C, wherein C is a constant that sets in advance, and 0≤C≤Discard Timer.
Because different business has different time delay demands, the embodiment of the invention is for the priority of comprehensive each logic channel and the time delay demand of different business, calculating has data to send from the UE that carries out uplink, receive these data and begin scheduling to NodeB, the T_lapse of lapse of time of process, the concrete grammar that calculates described lapse of time is as follows:
When the initial SI reporting of UE, corresponding lapse of time is the T_lapse of the highest priority logical channel when carrying out uplink scheduling transmission first:
At first, when NodeB dispatches first, SI is by inserting ascending control channel (E-DCH Random Access Uplink Control Channel at random, E-RUCCH) initially report, because reporting of SI may be repeatedly to send just success, therefore there are data to send from UE this moment, receive the elapsed time T_sourceT_source=T_RUCCH * N_ref of SI institute that reports to NodeB, wherein T_RUCCH is a timer in the SI message, N_ref is the required average time of successful access E-RUCCH that obtains according to system emulation, the value of this N_ref can be decimal, described T_RUCCH and N_ref can obtain their value according to method of the prior art, so no longer describe in detail.
Secondly, calculate NodeB and receive that the SI that reports is T_st to the dispatching office elapsed time that NodeB carries out uplink.At this moment, each self-corresponding T_lapse=T_source+T_st of lapse of time of each logic channel.
Step 103: calculate the dispatching priority of highest priority logical channel among each UE respectively according to described lapse of time and schedule information, the UE under the highest logic channel of dispatching priority is dispatched.
The method of the dispatching priority of highest priority logical channel comprises among each UE of described calculating:
According to the T_lapse of lapse of time that obtains, calculate the normalization delay parameter Td=T_lapse/T_threshold of highest priority logical channel among each UE;
Determine the factor of the dispatching priority of a logic channel to have a lot,, adopt formula F (t)=p for the influence of comprehensive various factors
1f
1+ p
2f
2+ p
3f
3+ p
4f
4+ ...+p
N-1f
N-1+ p
nTd, wherein f
iBe the value of list parameter in the described schedule information, for example priority of logical channels, cache size, highest priority data account for the ratio of total buffer memory and guarantee bit rate etc., and p
i(i=1,2 ... n) be the weights of each parameter, p
i∈ [0,1], concrete value preestablishes.Utilize above-mentioned formula to calculate the dispatching priority of each logic channel, and the UE under the highest logic channel of dispatching priority is dispatched.
Step 104: the schedule information that receives the renewal of the highest user terminal transmission of described dispatching priority, upgrade lapse of time of the highest logic channel of dispatching priority, return step 103 then and continue to carry out the calculating of described dispatching priority and carry out described scheduling, up to the uplink data scheduling transmission of each user terminal is finished.
The highest logic channel of described dispatching priority upgrades lapse of time according to following formula,
Lapse of time after wherein T_lapse (t) expression is upgraded, lapse of time before T_lapse (t-1) expression is upgraded, correctly then get 0 if judge the CRC check result, decision error then gets 1, and T_fa is the time interval of last scheduling and this scheduling, Tp is minimum scheduling interval, such as getting 5ms, may not dispatch timely by network side at the Tp time point of setting, so the value of T_fa is the Tp of integral multiple, Buffer is the cache size of this logic channel, L
iFor NodeB MAC-e PDU (Protocol Data Unit, protocol Data Unit) is resolved after the MAC-e PDU size of this logical channel data.The value of described each parameter can obtain according to concrete application scenarios, repeats no more herein.
When carrying out transmitting uplink data, described UE also simultaneously the schedule information of upgrading is sent to NodeB, according to the value of each list parameter in the schedule information of upgrading and the lapse of time after the renewal, return step 103 and continue to carry out the calculating of described dispatching priority and carry out described scheduling.
By as seen above-mentioned, said method can be taken into account the time delay demand of institute's loaded service on the priority of logic channel and the logic channel simultaneously when carrying out uplink scheduling, but the scope that described method selects logic channel to dispatch when each scheduling only limits to the highest logic channel of each UE medium priority, in order further to take into account the time delay demand of institute's bearer service on the non-highest priority logical channel, also further comprise in the method for the raising up-link service quality that provides in the embodiment of the invention:
NodeB sets in advance cycle regular hour or scheduling times, every through behind certain hour or the scheduling times, dispatch the highest UE of described dispatching priority according to total cache size, make network side can obtain the list parameter in each logic channel of non-limit priority among this UE, guarantee upgrading in time these list parameters.
NodeB receives the upstream data of described UE transmission and therefrom parses data description indication information (Data Description Index, DDI), there is corresponding relation in each logic channel among described DDI and this UE, described logic channel had both comprised highest priority logical channel, also comprised each channel except that highest priority logical channel.
Usually there are a plurality of logic channels among the UE, as NodeB during according to total cache size scheduling resource, can be according to the DDI that parses the data that send from UE and the corresponding relation of each logic channel, obtain the value of the various list parameters such as priority, cache size of described non-highest priority logical channel, and lapse of time of described each logic channel is calculated as T_fa, described T_fa is last scheduling and the time interval of this scheduling;
At this moment, calculate respectively after the step of the dispatching priority of highest priority logical channel in each user terminal according to described lapse of time and schedule information in the step 103, further comprise before the step that the user terminal under the highest logic channel of dispatching priority is dispatched:
According to the value of described list parameter and lapse of time calculate the dispatching priority of each logic channel except that highest priority logical channel in described each user terminal.
Below by a concrete example, further specify among the present invention the implementation of the method that improves up-link service quality, flow process as shown in Figure 2, comprising:
Step 201: high level is provided with the time delay demand and the informing base station of each logic channel of each UE, and the base station obtains delay parameter T_threshold after described time delay demand is shone upon.
Step 202: the base station receives the SI information that UE reports for the first time by E-RUCCH.
Step 203: obtain each list parameter in its corresponding logic channel according to the HLID in the SI information, described list parameter comprises priority, cache size and assurance bit rate etc.
Step 204: the T_lapse=T_source+T_st of lapse of time of the highest priority logical channel when calculating uplink scheduling transmission first.
Step 205: the various list parameters of each logic channel of base station maintenance different UEs, upgrade once the data in described logic channel according to the every TTI of frame structure and be scheduled.
Step 206: according to the value of described list parameter and lapse of time calculate the dispatching priority of each UE highest priority logical channel, the UE under the highest logic channel of selection scheduling priority carries out uplink scheduling.
Step 207: whether judge this scheduling according to total cache size scheduling, if, execution in step 208; Otherwise, execution in step 209.
Judge that wherein the method whether this scheduling is carried out according to total cache size is: set in advance cycle regular hour or scheduling times, every time or scheduling times that reaches this appointment is promptly according to total cache size scheduling UE.
Step 208: described UE is dispatched according to total cache size in the base station, continues execution in step 210.
Step 209: execution in step 212 is continued according to dispatching for the resource of the logical channel assignment of high dispatching priority in the base station.
Step 210: receive the upstream data of described UE transmission and therefrom parse DDI, corresponding relation according to each logic channel among described DDI and the UE, obtain the value of the list parameter of each logic channel except that highest priority logical channel, and lapse of time of described each logic channel is calculated as T_fa, described T_fa is last scheduling and the time interval of this scheduling.
Step 211: according to the value of described list parameter and lapse of time calculate the dispatching priority of each logic channel except that highest priority logical channel in described each user terminal, return step 205.
Step 212: the base station is upgraded T_lapse and is also returned step 205 according to the SI of the renewal that together sends with upstream data, continues to carry out described flow process up to finishing scheduling.
By as seen above-mentioned, obtain time delay demand and informing base station by delay parameter mapping with different business, the time delay demand of this Channel Transmission business except the priority of considering each logic channel, is also considered simultaneously in the base station when carrying out service dispatching, thereby improves the QoS demand of uplink service.
The embodiment of the invention also provides a kind of system that improves up-link service quality simultaneously, and it forms structure as shown in Figure 3, comprising: base station controller 310, user terminal 320 and base station 330;
Described base station controller 310, the delay parameter of configuration Different Logic channel also sends to base station 330.
Described user terminal 320 carries out reporting of schedule information, and carries out transmission of uplink data according to the resource that base station 330 is distributed.
Described base station 330, the schedule information that reports for the first time according to the delay parameter that receives and user terminal 320, calculate lapse of time of highest priority logical channel in each user terminal 320 respectively, described lapse of time for from buffer memory, have data to send to base station 330 utilize this logic channel dispatch described data institute elapsed time obtain comprise highest priority logical channel the T_lapse of lapse of time at interior various list parameters, and the initial value of the various list parameters of non-highest priority logical channel is set, described lapse of time is represented: have data will send to base station 330 from user terminal 320 and receive these data and utilize this logic channel to carry out the dispatching office elapsed time; Calculate the dispatching priority of highest priority logical channel in each user terminal 320 respectively according to described lapse of time and schedule information, the user terminal 320 under the highest logic channel of dispatching priority is dispatched; Receive the schedule information of the renewal of the highest user terminal of described dispatching priority 320 transmissions, upgrade lapse of time of the highest logic channel of dispatching priority, continue then to carry out the calculating of described dispatching priority and carry out described scheduling, up to the uplink data scheduling transmission of each user terminal 320 is finished.
Described base station controller 310 comprises that delay parameter is provided with module 311, be used to be provided with the time delay demand of each logic channel, described time delay demand be configured to the delay parameter T_threshold and the informing base station 330 of base station 330 according to default mapping relations by the NBAP agreement.
Described base station 330 comprises lapse of time computing module 331, dispatching priority computing module 332, lapse of time update module 333, periodic scheduling module 334 and list parameter update module 335;
Wherein, the described computing module of lapse of time 331, utilize formula T_lapse=T_source+T_st to calculate lapse of time, and T_source=T_RUCCH * N_ref, wherein T_source receives the schedule information elapsed time for having data will send to base station 330 from described logic channel, T_st is for 330 receiving that the schedule information that reports 330 begins to dispatch described data institute elapsed time to the base station from the base station, and setting pre-determines the value of described T_RUCCH and N_ref according to system.
Described dispatching priority computing module 332 according to lapse of time that lapse of time computing module 331 obtains, adopts formula Td=T_lapse/T_threshold to calculate the normalization delay parameter; According to the value of each list parameter in normalization delay parameter and the schedule information, utilize formula F (t)=p again
1f
1+ p
2f
2+ p
3f
3+ p
4f
4+ ...+p
N-1f
N-1+ p
nTd calculates the dispatching priority of described each logic channel, wherein f
iBe the value of list parameter in the described schedule information, p
iBe the weight of described each parameter, and value is preestablished 0≤p by system
i≤ 1, i=1,2 ... n, i and n are natural number, and list parameter comprises in the described schedule information: total cache size, highest priority data account for ratio, assurance bit rate and each priority of logical channels of total buffer memory.
The described update module of lapse of time 333 is upgraded lapse of time according to the decode cyclic redundancy check (CRC) result that obtains of the upstream data that user terminal 320 is sent, and utilizes formula
Lapse of time after wherein T_lapse (t) expression is upgraded, lapse of time before T_lapse (t-1) expression is upgraded, correctly then get 0 if judge the CRC check result, decision error then gets 1, T_fa is the time interval of last scheduling and this scheduling, and Tp is minimum scheduling interval, and the value of T_fa is the Tp of integral multiple, Buffer is the cache size of this logic channel, L
iMAC-e PDU size for this logical channel data after the 330 pairs of MAC-e PDU parsings in base station.
Described periodic scheduling module 334 sets in advance cycle regular hour or scheduling times, and is every through behind certain hour or the scheduling times, dispatches the highest user terminal of described dispatching priority 320 and notify list parameter update module 335 according to total cache size;
Described list parameter update module 335, the notice of receiving cycle scheduler module 334, from the upstream data that the described user terminal 320 that receives sends, parse the data description indication information, there is corresponding relation in each logic channel in described data description indication information and this user terminal 320, obtain the value of the list parameter of each logic channel except that highest priority logical channel according to described corresponding relation, lapse of time of described each logic channel is calculated as T_fa and notifies dispatching priority computing module 332, and described T_fa is the time interval of last scheduling and this scheduling;
Described dispatching priority computing module 332, further calculate the normalization delay parameter of described logic channel according to lapse of time of each logic channel except that highest priority logical channel, the value of the list parameter that is obtained by described normalization delay parameter and list parameter update module 335 is utilized formula F (t)=p again
1f
1+ p
2f
2+ p
3f
3+ p
4f
4+ ...+p
N-1f
N-1+ p
nTd calculates the dispatching priority of described each logic channel, wherein f
iBe the value of described each list parameter, p
iBe the weight of described each parameter, and value is preestablished 0≤p by system
i≤ 1, i=1,2 ... n, i and n are natural number, and described each list parameter comprises: total cache size, highest priority data account for ratio, assurance bit rate and each priority of logical channels of total buffer memory.
By as seen above-mentioned, obtain time delay demand and informing base station by delay parameter mapping with different business, the time delay demand of this Channel Transmission business except the priority of considering each logic channel, is also considered simultaneously in the base station when carrying out service dispatching, thereby improves the QoS demand of uplink service.
Therefore; understand easily, the above is preferred embodiment of the present invention only, is not to be used to limit spirit of the present invention and protection range; equivalent variations that any those of ordinary skill in the art made or replacement all should be considered as being encompassed within protection scope of the present invention.
Claims (13)
1. a method that improves up-link service quality is characterized in that, this method comprises:
The delay parameter of the Different Logic channel of base station reception base station controller configuration and the schedule information that each user terminal initially reports, calculate lapse of time of highest priority logical channel in each user terminal respectively, described lapse of time utilizes this highest priority logical channel to dispatch described data institute elapsed time for there being data will send to the base station from buffer memory;
Calculate the dispatching priority of highest priority logical channel in each user terminal respectively according to described lapse of time and schedule information, the user terminal under the highest logic channel of dispatching priority is dispatched;
Receive the schedule information of the renewal of the highest user terminal transmission of described dispatching priority, upgrade lapse of time of the highest logic channel of dispatching priority, continue then to carry out the calculating of described dispatching priority and carry out described scheduling, up to the uplink data scheduling transmission of each user terminal is finished.
2. method according to claim 1 is characterized in that, the method for the delay parameter of the Different Logic channel of described base station reception base station controller configuration is:
Base station controller is provided with the time delay demand of each logic channel, described time delay demand is configured to the delay parameter T_threshold of base station side by base station application part NBAP agreement according to default mapping relations.
3. method according to claim 1 and 2 is characterized in that, the method for lapse of time of highest priority logical channel is in each user terminal of described calculating:
Calculate lapse of time according to formula T_lapse=T_source+T_st, and T_source=T_RUCCH * N_ref, wherein T_source receives schedule information institute elapsed time for having data will send to the base station from described highest priority logical channel, T_st begins to dispatch described data institute elapsed time for receive the schedule information that reports from the base station to the base station, setting pre-determines the value of described T_RUCCH and N_ref according to system.
4. method according to claim 3 is characterized in that, the method for the dispatching priority of highest priority logical channel is in each user terminal of described calculating:
Calculate the normalization delay parameter Td=T_lapse/T_threshold of described each highest priority logical channel;
According to formula F (t)=p
1f
1+ p
2f
2+ p
3f
3+ p
4f
4+ ...+p
N-1f
N-1+ p
nTd calculates the dispatching priority of described each highest priority logical channel, wherein f
iBe the value of list parameter in the described schedule information, p
iBe the weights of described each parameter, and value is preestablished 0≤p by system
i≤ 1, i=1,2 ... n, i and n are natural number, and list parameter comprises in the described schedule information: total cache size, highest priority data account for ratio, assurance bit rate and each priority of logical channels of total buffer memory.
5. method according to claim 4 is characterized in that, the method for lapse of time of the logic channel that described renewal dispatching priority is the highest is:
Upgrade lapse of time according to the cyclic redundancy check (CRC) result who obtains that the data that received are decoded,
Lapse of time after wherein T_lapse (t) expression is upgraded, lapse of time before T_lapse (t-1) expression is upgraded, if judge the CRC check result correctly then CRC get 0, decision error then CRC gets 1, T_fa is the time interval of last scheduling and this scheduling, and Tp is minimum scheduling interval, and the value of T_fa is the Tp of integral multiple, Buffer is the cache size of this described logic channel, L
iFor the base station MAC-e PDU is resolved after the MAC-e PDU size of this logical channel data.
6. method according to claim 5 is characterized in that, this method also comprises:
Set in advance cycle regular hour or scheduling times, every through behind certain hour or the scheduling times, dispatch the highest user terminal of described dispatching priority according to total cache size;
Receive the upstream data of described user terminal transmission and therefrom parse the data description indication information, there is corresponding relation in each logic channel in described data description indication information and this user terminal, obtain the value of the list parameter of each logic channel except that highest priority logical channel according to described corresponding relation, and lapse of time of described each logic channel is calculated as T_fa, described T_fa is last scheduling and the time interval of this scheduling;
Describedly calculate respectively after the step of the dispatching priority of highest priority logical channel in each user terminal, further comprise before the step that the user terminal under the highest logic channel of dispatching priority is dispatched according to described lapse of time and schedule information:
According to the value of described list parameter and lapse of time calculate the dispatching priority of each logic channel except that highest priority logical channel in described each user terminal.
7. method according to claim 1 is characterized in that, the delay parameter of described Different Logic channel is configured in the E-DCH Logical Channel message.
8. a system that improves up-link service quality is characterized in that, this system comprises base station controller, user terminal and base station;
Described base station controller, the delay parameter of configuration Different Logic channel also sends to the base station;
Described base station, the schedule information that reports for the first time according to the delay parameter that receives and user terminal, calculate lapse of time of highest priority logical channel in each user terminal respectively, described lapse of time utilizes this highest priority logical channel to dispatch described data institute elapsed time for there being data will send to the base station from buffer memory, obtain comprise highest priority logical channel the T_lapse of lapse of time at interior various list parameters, and the initial value of the various list parameters of non-highest priority logical channel is set; Calculate the dispatching priority of highest priority logical channel in each user terminal respectively according to described lapse of time and schedule information, the user terminal under the highest logic channel of dispatching priority is dispatched; Receive the schedule information of the renewal of the highest user terminal transmission of described dispatching priority, upgrade lapse of time of the highest logic channel of dispatching priority, continue then to carry out the calculating of described dispatching priority and carry out described scheduling, up to the uplink data scheduling transmission of each user terminal is finished;
Described user terminal carries out reporting of schedule information, and carries out transmission of uplink data according to the resource of base station assigns.
9. system according to claim 8 is characterized in that, described base station controller comprises that delay parameter is provided with module:
Described delay parameter is provided with module, and the time delay demand of each logic channel is set, and described time delay demand is configured to the delay parameter T_threshold and the informing base station of base station side by the NBAP agreement according to default mapping relations.
10. according to Claim 8 or 9 described systems, it is characterized in that described base station comprises lapse of time computing module;
The described computing module of lapse of time, utilize formula T_lapse=T_source+T_st to calculate lapse of time, and T_source=T_RUCCH * N_ref, wherein T_source receives the schedule information elapsed time for having data will send to the base station from described highest priority logical channel, T_st begins to dispatch described data institute elapsed time for receive the schedule information that reports from the base station to the base station, setting pre-determines the value of described T_RUCCH and N_ref according to system.
11. system according to claim 10 is characterized in that, described base station further comprises the dispatching priority computing module;
Described dispatching priority computing module according to lapse of time that lapse of time computing module obtains, adopts formula Td=T_lapse/T_threshold to calculate the normalization delay parameter; According to the value of each list parameter in normalization delay parameter and the schedule information, utilize formula F (t)=p again
1f
1+ p
2f
2+ p
3f
3+ p
4f
4+ ...+p
N-1f
N-1+ p
nTd calculates the dispatching priority of described each highest priority logical channel, wherein f
iBe the value of list parameter in the described schedule information, p
iBe the weights of described each parameter, and value is preestablished 0≤p by system
i≤ 1, i=1,2 ... n, i and n are natural number, and list parameter comprises in the described schedule information: total cache size, highest priority data account for ratio, assurance bit rate and each priority of logical channels of total buffer memory.
12. system according to claim 11 is characterized in that, described base station also further comprises lapse of time update module;
The described update module of lapse of time is upgraded lapse of time according to the decode cyclic redundancy check (CRC) result that obtains of the upstream data that user terminal is sent, and utilizes formula
Lapse of time after wherein T_lapse (t) expression is upgraded, lapse of time before T_lapse (t-1) expression is upgraded, if judge the CRC check result correctly then CRC get 0, decision error then CRC gets 1, T_fa is the time interval of last scheduling and this scheduling, and Tp is minimum scheduling interval, and the value of T_fa is the Tp of integral multiple, Buffer is the cache size of this logic channel, L
iFor the base station MAC-e PDU is resolved after the MAC-e PDU size of this logical channel data.
13. system according to claim 12 is characterized in that, described base station also further comprises periodic scheduling module and list parameter update module:
Described periodic scheduling module sets in advance cycle regular hour or scheduling times, and is every through behind certain hour or the scheduling times, dispatches the highest user terminal of described dispatching priority and notify list parameter update module according to total cache size;
Described list parameter update module, the notice of receiving cycle scheduler module, from the upstream data that the described user terminal that receives sends, parse the data description indication information, there is corresponding relation in each logic channel in described data description indication information and this user terminal, obtain the value of the list parameter of each logic channel except that highest priority logical channel according to described corresponding relation, to be calculated as T_fa and notify the dispatching priority computing module by lapse of time of each logic channel except that highest priority logical channel, described T_fa be the time interval of last scheduling and this scheduling;
Described dispatching priority computing module, further calculate the normalization delay parameter of described each logic channel according to lapse of time of each logic channel except that highest priority logical channel, the value of the list parameter that is obtained by described normalization delay parameter and list parameter update module is utilized formula F (t)=p again
1f
1+ p
2f
2+ p
3f
3+ p
4f
4+ ...+p
N-1f
N-1+ p
nTd calculates the dispatching priority of described each logic channel, wherein f
iBe the value of described each list parameter, p
iBe the weights of described each parameter, and value is preestablished 0≤p by system
i≤ 1, i=1,2 ... n, i and n are natural number, and described each list parameter comprises: total cache size, highest priority data account for ratio, assurance bit rate and each priority of logical channels of total buffer memory.
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| CN102104974B (en) * | 2011-02-28 | 2014-01-01 | 华为技术有限公司 | Method, device and system for carrying out uplink pre-scheduling processing |
| CN102202411B (en) * | 2011-06-01 | 2013-10-09 | 上海华为技术有限公司 | Method and associated equipment for dispatching service data |
| WO2016187885A1 (en) * | 2015-05-28 | 2016-12-01 | Qualcomm Incorporated | Detection and reduction of delays in reverse link control data |
| CN109511168B (en) * | 2017-09-14 | 2021-06-15 | 华为技术有限公司 | Method, apparatus and readable storage medium for signal processing |
| CN110324863B (en) * | 2018-03-28 | 2023-05-09 | 中国移动通信有限公司研究院 | Method and base station for realizing QoS distribution on wireless side |
| CN111867114B (en) * | 2019-04-28 | 2022-08-26 | 华为技术有限公司 | Method and device for determining scheduling priority |
| CN110996397B (en) * | 2019-11-07 | 2022-11-29 | 京信网络系统股份有限公司 | Resource scheduling method, device, base station and storage medium |
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