CN102348288B - Dispatch method and evolvement-type base station - Google Patents
Dispatch method and evolvement-type base station Download PDFInfo
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- CN102348288B CN102348288B CN201010246626.2A CN201010246626A CN102348288B CN 102348288 B CN102348288 B CN 102348288B CN 201010246626 A CN201010246626 A CN 201010246626A CN 102348288 B CN102348288 B CN 102348288B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
- H04L1/0004—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
- H04L1/001—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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Abstract
The invention discloses a dispatch method and an evolvement-type base station. The method comprises the following steps of: determining to cancel a first spectral efficiency of a UCI (Unified Communication Identity)-multiplexed business and a second spectral efficiency of the UCI-multiplexed business according to numbers of obtained MCSs (Master Control Sets) and RBs (Radio Beacons); determining a sum of the first spectral efficiency and a spectral efficiency wave which is set by a system to be a third spectral efficiency; judging whether the second spectral efficiency is less than the spectral efficiency; if so, dispatching the business and the UCI by using the MCS; otherwise, regulating the MCS until the second spectral efficiency is less than the third spectral efficiency, and dispatching the business and the UCI by using the adjusted MCS. According to the dispatch method provided by the invention, the reliability of an uplink transmission is improved and the better property of the uplink transmission is achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of dispatching method and evolved base station.
Background technology
At Long Term Evolution (Long Term Evolution, referred to as LTE) in system, for improving message transmission rate and effectively retransmitting and dispatch, subscriber equipment (UserEquipment, referred to as UE) need by cyclic redundancy check (CRC) (Cyclic RedundancyCheck, referred to as CRC) feeding back downlink transmission correctness, and confirmation/non-acknowledgement is recognized (Acknowledge/Non-acknowledge, referred to as ACK/NAK) information reporting to base station (eNB).Simultaneously, UE also needs measure channel state information, comprise order instruction (Rank Indicator, referred to as RI), pre-coding matrix index (Precoding MatrixIndex, referred to as PMI) and channel quality instruction (Channel QualityIndicator, referred to as CQI) etc. of each data flow.For up these information reported: ACK/NAK, RI, CQI, PMI, be referred to as ascending control information (Uplink Control Information, referred to as UCI), in 3GPP agreement, adopt identical process to report to PMI and CQI.UE can pass through Physical Uplink Shared Channel (Physical Uplink SharedChannel, referred to as PUSCH) and Physical Uplink Control Channel (Physical UplinkControl Channel, referred to as PUCCH) two kinds of modes report.The UCI in cycle reports on PUCCH, if but run into PUSCH business, then need to report on PUSCH.Aperiodic UCI reports on PUSCH.Channel condition information gives the correct time and in two kinds of situation on PUSCH: UCI and Uplink Shared Channel data (Uplink-Shared Channel, referred to as UL-SCH) multiplexing; UCI reports separately on PUSCH (namely PUSCH not having UL-SCH data).
In prior art, UCI information on PUSCH on give the correct time, the resource of Traffic Channel can be taken in a large number, can not efficient scheduling be carried out to business and UCI information, larger impact is caused on the transmission of existing business, and then reduces communication quality and the link transmission performance of existing business.
Summary of the invention
Main purpose of the present invention is to provide a kind of dispatching method and eNB, with solve UCI information on PUSCH on give the correct time, the resource of Traffic Channel can be taken in a large number, efficient scheduling can not be carried out to business and UCI information, larger impact is caused on the transmission of existing business, and then reduces the communication quality of existing business and the problem of link transmission performance.
To achieve these goals, according to an aspect of the present invention, a kind of dispatching method is provided.
Dispatching method according to the present invention comprises: the second spectrum efficiency determining the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI according to the modulating-coding mechanism MCS obtained and available resource block RB number; Determine that the spectrum efficiency of the first spectrum efficiency and the Operation system setting sum that fluctuates is the 3rd spectrum efficiency; Judge whether the second spectrum efficiency is less than the 3rd spectrum efficiency; If judged result is yes, then MCS is used to dispatch business and UCI; If judged result is no, then adjust MCS until second frequency efficiency is less than the 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches to business and UCI.
Further, use MCS to carry out scheduling to business and UCI to comprise: judge whether UCI comprises and determine/non-determined ACK/NAK; If judged result is yes, then according to the Developing Tactics MCS preset, and according to dispatching services and UCI on the MCS after adjustment physically row shared channel PUSCH; If judged result is no, then according to MCS dispatching services and UCI on PUSCH.
Further, MCS is until second frequency efficiency is less than the 3rd spectrum efficiency in adjustment, and the MCS after Use Adjustment carries out scheduling to business and UCI comprises: setting steps: arrange MCS=MCS-1; Determining step: the MCS according to arranging determines second frequency efficiency; Determining step: judge whether the second frequency efficiency after determining is less than the 3rd frequency efficiency, if judged result is no, is then back to setting steps, if judged result is yes, then uses current MCS to dispatch business and UCI.
Further, use current MCS to carry out scheduling to business and UCI to comprise: judge whether UCI comprises and determine/non-determined ACK/NAK; If judged result is yes, then according to the current MCS of the Developing Tactics preset, and according to current MCS dispatching services and the UCI on PUSCH after adjustment; If judged result is no, then according to current MCS dispatching services and UCI on PUSCH.
Further, if the MCS arranged is 0, then cancels dispatching services, and judge whether UCI meets transmission performance; If judged result is satisfied, then on PUSCH, dispatch UCI; If judged result is not for meet, then again judge that whether UCI comprises ACK/NAK, if judged result is for comprising, then dispatches ACK/NAK on PUCCH.
Further, by following formulae discovery first spectrum efficiency R
0:
by following formulae discovery second spectrum efficiency R
1:
wherein, RE number Q '
rIfor:
rE number Q ' shared by CQI
cQIfor:
wherein
for the bit length sum of institute's available for transmission code block of CRC check corresponding to MSC, C is code block number,
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under general cyclic prefix CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that channel quality indicator (CQI) and pre-coding matrix index PMI take; Q '
rIfor the RE number that RI takies; O
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI and PMI; L is the CRC check bit length of CQI, works as O
cQIduring > 11, L=8, works as O
cQIwhen≤11, L=0;
for the deviant of the RI of default,
for the deviant of the CQI of default.
To achieve these goals, according to a further aspect in the invention, a kind of eNB is provided.
ENB according to the present invention comprises: the first determination module, for determining the second spectrum efficiency of the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI according to the modulating-coding mechanism MCS obtained and available resource block RB number; Second determination module, for determining that the spectrum efficiency of the first spectrum efficiency and the Operation system setting sum that fluctuates is the 3rd spectrum efficiency; Judge module, for judging whether the second spectrum efficiency is less than the 3rd spectrum efficiency; First scheduler module, for when judged result is for being, uses MCS to dispatch business and UCI; Second scheduler module, during for being no in judged result, MCS is until second frequency efficiency is less than the 3rd spectrum efficiency in adjustment, and the MCS after Use Adjustment dispatches business and UCI.
Further, the first scheduler module comprises: first judges submodule, determines/non-determined ACK/NAK for judging whether UCI comprises; First adjustment submodule, for when judged result is for being, according to the Developing Tactics MCS preset; First scheduling sublayer module, for according to dispatching services and the UCI on row shared channel PUSCH physically of the MCS after adjustment; Second scheduling sublayer module, during for being no in judged result, according to MCS dispatching services and UCI on PUSCH.
Further, the second scheduler module comprises: arrange submodule, for arranging MCS=MCS-1; Determine submodule, for determining second frequency efficiency according to the MCS arranged; Second judges submodule, for judging whether the second frequency efficiency after determining is less than the 3rd frequency efficiency; 3rd scheduling sublayer module, during for being no in judged result, then scheduling arranges submodule; 4th scheduling sublayer module, for when judged result is for being, uses current MCS to dispatch business and UCI.
Further, the 4th scheduling sublayer module comprises: judging unit, determines/non-determined ACK/NAK for judging whether UCI comprises; Adjustment unit, for when judged result is for being, according to the current MCS of the Developing Tactics preset; First scheduling unit, for according to adjustment after current MCS dispatching services and UCI on PUSCH; Second scheduling unit, during for being no in judged result, according to current MCS dispatching services and UCI on PUSCH.
Further, the second scheduler module also comprises: cancel submodule, for being 0 at the MCS arranged, then cancels dispatching services; 3rd judges submodule, for and judge whether UCI meets transmission performance; 5th scheduling sublayer module, for when judged result is for meeting, PUSCH dispatches UCI; 6th scheduling sublayer module, for when judged result is not for meeting, again judges whether UCI comprises ACK/NAK, if judged result is for comprising, PUCCH dispatching ACK/NAK.
Further, by following formulae discovery first spectrum efficiency R
0:
by following formulae discovery second spectrum efficiency R
1:
wherein, RE number Q '
rIfor:
RE number Q ' shared by CQI
cQIfor:
wherein,
for the bit length sum of institute's available for transmission code block of CRC check corresponding to MSC, C is code block number,
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under general cyclic prefix CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that channel quality indicator (CQI) and pre-coding matrix index PMI take; Q '
rIfor the RE number that RI takies; O
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI and PMI; L is the CRC check bit length of CQI, works as O
cQIl=8, O during > 11
cQIl=0 when≤11;
for the deviant of the RI of default,
for the deviant of the CQI of default.
By the present invention, adopt the second spectrum efficiency determining the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI according to the modulating-coding mechanism MCS obtained and available resource block RB number; Determine that the spectrum efficiency of the first spectrum efficiency and the Operation system setting sum that fluctuates is the 3rd spectrum efficiency; Judge whether the second spectrum efficiency is less than the 3rd spectrum efficiency; If judged result is yes, then MCS is used to dispatch business and UCI; If judged result is no, then adjust MCS until second frequency efficiency is less than the 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches business and UCI, solve UCI information on PUSCH on give the correct time, the resource of Traffic Channel can be taken in a large number, efficient scheduling can not be carried out to business and UCI information, larger impact is caused on the transmission of existing business, and then reduce the communication quality of existing business and the problem of link transmission performance, and then reach the effect that improve link transmission performance.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the dispatching method according to the embodiment of the present invention;
Fig. 2 is the flow chart of dispatching method according to the preferred embodiment of the invention;
Fig. 3 is the structured flowchart of the eNB according to the embodiment of the present invention; And
Fig. 4 is the preferred structured flowchart of the eNB according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
In the present embodiment, a kind of dispatching method is provided.Fig. 1 is the flow chart of the dispatching method according to the embodiment of the present invention, as shown in Figure 1, comprising:
Step S102, determines the second spectrum efficiency of the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI according to the modulating-coding mechanism MCS obtained and available resource block RB number;
Step S104: determine that the spectrum efficiency of the first spectrum efficiency and the Operation system setting sum that fluctuates is the 3rd spectrum efficiency.
Step S106: judge whether the second spectrum efficiency is less than the 3rd spectrum efficiency.
Step S108: if judged result is yes, then use MCS to dispatch business and UCI.
Step S110: if judged result is no, then adjust MCS until second frequency efficiency is less than the 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches to business and UCI.
Pass through above-mentioned steps, cancellation first spectrum efficiency of business of multiplexing UCI and the 3rd spectrum efficiency size of the business of multiplexing UCI are compared, when the second spectrum efficiency is less than the 3rd spectrum efficiency, MCS is used to dispatch business and UCI, when the second spectrum efficiency is greater than the 3rd spectrum efficiency, then adjust MCS until second frequency efficiency is less than the 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches to business and UCI.To avoid in correlation technique UCI information on PUSCH on give the correct time, the resource of Traffic Channel can be taken in a large number, efficient scheduling can not be carried out to business and UCI information, larger impact is caused on the transmission of existing business, and then reduce the communication quality of existing business and the problem of link transmission performance, ensure that the communication quality of existing business and improve link transmission performance.
Below the use MCS in step S108 is preferred embodiment described that business and UCI are dispatched.In a preferred embodiment, first can judge whether UCI comprises and determine/non-determined ACK/NAK; When judged result is for being, according to the Developing Tactics MCS preset, and according to dispatching services and UCI on the MCS after adjustment physically row shared channel PUSCH; When judged result is no, according to MCS dispatching services and UCI on PUSCH.By the determining step of this preferred embodiment, can confirm whether contain ACK/NAK in UCI, and according to the Developing Tactics MCS preset, ensure that the transmitting of ACK/NAK, due in LTE system, ACK/NAK by the correctness of CRC check downlink transfer, and is fed back to base station by UE, the preferred embodiment ensure that the transmitting of ACK/NAK, thus ensure that the reliability that LTE system uplink feedback transmits.
Below to the adjustment MCS in step S110 until second frequency efficiency is less than the 3rd spectrum efficiency, and the MCS after Use Adjustment is preferred embodiment described that business and UCI are dispatched.In a preferred embodiment, adopt setting steps: MCS=MCS-1 is set; Determining step: the MCS according to arranging determines second frequency efficiency; Determining step: judge whether the second frequency efficiency after determining is less than the 3rd frequency efficiency, if judged result is no, is then back to setting steps, if judged result is yes, then uses current MCS to dispatch business and UCI.By setting steps and the determining step of the preferred embodiment, achieve circulation and successively decrease until find a MCS to meet second frequency efficiency be less than the 3rd frequency efficiency, and this MCS is the maximum MCS meeting above-mentioned condition.
Preferably, use current MCS to carry out scheduling to business and UCI to comprise: judge whether UCI comprises and determine/non-determined ACK/NAK; If judged result is yes, then according to the current MCS of the Developing Tactics preset, and according to current MCS dispatching services and the UCI on PUSCH after adjustment; If judged result is no, then according to current MCS dispatching services and UCI on PUSCH.By the determining step of this preferred embodiment, can confirm whether contain ACK/NAK in UCI, and according to the Developing Tactics MCS preset, ensure that the transmitting of ACK/NAK, due in LTE system, ACK/NAK by the correctness of CRC check downlink transfer, and is fed back to base station by UE, the preferred embodiment ensure that the transmitting of ACK/NAK, thus ensure that the reliability of LTE system uplink.
Preferably, if the MCS arranged is 0, then cancels dispatching services, and judge whether UCI meets transmission performance; If judged result is satisfied, then on PUSCH, dispatch UCI; If judged result is not for meet, then again judge that whether UCI comprises ACK/NAK, if judged result is for comprising, then dispatches ACK/NAK on PUCCH.In the preferred embodiment, pass through determining step, when MCS is 0, judge whether the condition meeting scheduling UCI, if do not met, again judge whether to comprise ACK/NAK, the preferred embodiment ensure that the transmitting of ACK/NAK, due to the feedback that ACK/NAK is downlink transfer, thus ensure that the reliability that LTE system uplink feedback transmits.
Preferably, by following formulae discovery first spectrum efficiency R
0:
By following formulae discovery second spectrum efficiency R
1:
RE number Q ' shared by CQI
cQIfor:
for the bit length sum of institute's available for transmission code block of CRC check corresponding to MSC, C is code block number,
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under general cyclic prefix CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that CQI (comprising PMI) takies; Q '
rIfor the RE number that RI takies; O
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI (comprising PMI); L is the CRC check bit length of CQI, works as O
cQIduring > 11, L=8, works as O
cQIl=0 when≤11;
with
be respectively the deviant of RI and CQI of default.The preferred embodiment achieves the first spectrum efficiency R
0with the second spectrum efficiency R
1calculating.
Embodiment two
The present embodiment combines embodiment one and preferred implementation wherein, provides a kind of dispatching method in the present embodiment, and Fig. 2 is the flow chart of dispatching method according to the preferred embodiment of the invention, as shown in Figure 2, comprising:
Step S202: by initial measurement and the initial MCS of other information acquisitions RBNum (RB number);
Step S204: RBNum and MCS obtained by step S202, calculate (by following formula (1), Q '
cQIwith Q '
rIall be configured to 0) under this configuration, time multiplexing without UCI, the spectrum efficiency R of business.Make R0=R+ δ, for meeting the spectrum efficiency upper limit of service feature.
Step S206: according to the following equation (1), under calculating current MCS, during multiplexing UCI, the spectrum efficiency R1 of business.
Step S208: judge whether R1 is less than R0, if judged result is yes, performs step S210, if judged result is no, performs step S212.
Step S210: currently return current MCS, and judge whether to need feeding back ACK/NAK.If need feeding back ACK/NAK, then according to the form set in advance, need adjudicate, determine final MCS.As without the need to feedback, return current MCS.Finishing scheduling.
Step S212: MCS=MCS-1 is set.
Step S214: judge whether MCS is more than or equal to 0, if judged result is yes, performs step S206, if judged result is no, performs step S216.
Step S216: cannot find the MCS meeting service transmission performance, abandons business transmission, i.e. not dispatching services.
Step S218: whether judgement dispatches CQI/RI, judge whether to meet CQI scheduling performance? if judged result is, perform step S220, if judged result is no, perform step S222.
Step S220: the scheduling carrying out CQI/RI, flow process terminates.
Step S222: do not dispatch CQI/RI, if there is ACK/NAK, uses PUCCH to send.
It should be noted that, in the present embodiment, adopt following formulae discovery business spectrum efficiency:
In above-mentioned steps, the RE number Q ' shared by RI
rIcomputational methods be:
In above-mentioned steps, the RE number Q ' shared by CQI
cQIcomputational methods be:
Wherein,
for the bit length sum containing institute's available for transmission code block of CRC check that MSC is corresponding, C is code block number;
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under common CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that CQI (comprising PMI) takies; Q '
rIfor the RE number that RI takies; Q
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI (comprising PMI); L is the CRC check bit length of CQI, works as O
cQIduring > 11, L=8, works as O
cQIwhen≤11, L=0;
with
be respectively the deviant of RI and CQI of default.
It should be noted that, the present embodiment is applicable to the dispatching requirement when there is UCI, have again the scheduling process of the dispatching requirement of uplink service, and the present embodiment is only applicable to new transmission packet, for retransmission packet, does not adopt the dispatching method of the present embodiment simultaneously.
Embodiment three
In the present embodiment, system bandwidth 20M, UCI deviant
uE report cycle CQI, original bit number is 4, there is not RI, there is ACK/NAK, there is Sounding, for the symbol numbers of PUSCH business transmission
be 11.
This scheduling process comprises the following steps:
Step 1: determine initial MCS=4, RBNum=3;
Step 2: according to formula (1), under calculating current MCS=4, RBNum=3, not during multiplexing CQI, the spectrum efficiency of business: R=0.5859.Make δ=0.0135, then R
0=R+ δ=0.5993.
Step 3: according to the formula (1) in embodiment two, under calculating current MCS=4, RBNum=3, during multiplexing CQI, the spectrum efficiency of business: R
1=0.6105.
Step 4: because R
1be greater than R
0, then MCS=MCS-1=3.To steps A 3, recalculate business code check: under current MCS=3, RBNum=3, during multiplexing CQI, the spectrum efficiency of business: R
1=0.5291.Because R
1be less than R
0, skip to steps A 5.
Step 5: because need feeding back ACK/NAK, according to the form set in advance, adjudicate, determine final MCS=MCS-1=2, return current MCS.
Scheduling final result is: it is 2 that PUSCH dispatches MCS, multiplexing ACK/NAK.
In the present embodiment, achieve and do not meet transmission conditions at initial MCS, the value of adjustment MCS, and comprise ACK/NAK at UCI, again adjust MCS according to Operation system setting, carry out the process of dispatching.
Embodiment four
In the present embodiment, system bandwidth 10M.UCI deviant
uE adopts the mode transfer of transmission mode 4, and need broadband to report CQI, original bit number is 24.RI is 1, accounts for 1 bit.There is not ACK/NAK.There is Sounding, for the symbol numbers of PUSCH business transmission
be 11.
This scheduling process comprises the following steps:
Step 1: determine initial MCS=4, RBNum=4;
Step 2: according to the formula (1) in embodiment two, under calculating current MCS=4, RBNum=4, not during multiplexing CQI and RI, the spectrum efficiency of business: R=0.5303.Make δ=0.0455, then R
0=R+ δ=0.5758.
Step 3: according to the formula (1) in embodiment two, under calculating current MCS=4, RBNum=4, during multiplexing CQI and RI, the spectrum efficiency of business: R
1=0.7609.
Step 4: because R
1be greater than R
0, then MCS=MCS-1=3.To step B3, recalculate business code check: under current MCS=3, RBNum=4, during multiplexing CQI and RI, the spectrum efficiency of business: R
1=0.6925.
Because R
1be greater than R
0, then MCS=MCS-1=2.To step B3, recalculate business code check: under current MCS=2, RBNum=4, during multiplexing CQI and RI, the spectrum efficiency of business: R
1=0.6601.
Because R
1be greater than R
0, then MCS=MCS-1=1.To step B3, recalculate business code check: under current MCS=1, RBNum=4, during multiplexing CQI and RI, the spectrum efficiency of business: R
1=0.6437.
Because R
1be greater than R
0, then MCS=MCS-1=0.To step B3, recalculate business code check: under current MCS=0, RBNum=4, during multiplexing CQI and RI, the spectrum efficiency of business: R
1=0.8750.
Because R
1be greater than R
0, then MCS=MCS-1=-1 < 0.Skip to step B6.
Step 5: cannot find the MCS meeting service transmission performance, abandons business transmission.Calculate UCI code check and meet transmission performance, the final result of scheduling is not sending service, single-shot UCI information.
In the preferred embodiment, achieve when MCS is less than 0, the handling process of scheduling.
Embodiment five
The present embodiment combines embodiment one and preferred implementation wherein, provide a kind of eNB in the present embodiment, Fig. 3 is the structured flowchart of the eNB according to the embodiment of the present invention, as shown in Figure 3, this eNB comprises: the first determination module 32, second determination module 34, judge module 36, first scheduler module 38, second scheduler module 39, be described in detail to said structure below:
First determination module 32, for determining the second spectrum efficiency of the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI according to the modulating-coding mechanism MCS obtained and available resource block RB number; Second determination module 34, is connected to the first determination module 32, and the sum that fluctuates of the spectrum efficiency for the first spectrum efficiency of determining according to the first determination module 32 and Operation system setting is the 3rd spectrum efficiency; Judge module 36, is connected to the first determination module 32 and the second determination module 34, for judging the 3rd spectrum efficiency whether the second spectrum efficiency that the first determination module 32 is determined is less than the second determination module 34 and determines; First scheduler module 38, is connected to judge module 36, for when the judged result of judge module 36 is for being, uses MCS to dispatch business and UCI; Second scheduler module 39, is connected to judge module 36, and for when the judged result of judge module 36 is no, MCS is until second frequency efficiency is less than the 3rd spectrum efficiency in adjustment, and the MCS after Use Adjustment dispatches business and UCI.
Fig. 4 is the preferred structured flowchart of the eNB according to the embodiment of the present invention, as shown in Figure 4, first scheduler module 38 also comprises: first judges submodule 382, first adjustment submodule 384, first scheduling sublayer module 386, second scheduling sublayer module 388, second scheduler module 39 comprises: arrange submodule 391, determine submodule 392, second judges submodule 393, 3rd scheduling sublayer module 394, 4th scheduling sublayer module 395, cancel submodule 396, 3rd judges submodule 397, 5th scheduling sublayer module 398 and the 6th scheduling sublayer module 399, 4th scheduling sublayer module 395 also comprises: judging unit 3952, adjustment unit 3954, first scheduling unit 3956, second scheduling unit 3958, below said structure is described in detail:
First scheduler module 38 comprises: first judges submodule 382, determines/non-determined ACK/NAK for judging whether UCI comprises; First adjustment submodule 384, is connected to the first judgement submodule 382, for when first judges submodule 382 judged result as being, according to the Developing Tactics MCS preset; First scheduling sublayer module 386, is connected to the first adjustment submodule 384, MCS dispatching services and the UCI on row shared channel PUSCH physically after adjusting according to the first adjustment submodule 384; Second scheduling sublayer module 388, is connected to the first judgement submodule 382, for when first judges that submodule 382 judged result is no, according to MCS dispatching services and UCI on PUSCH.
Second scheduler module 39 comprises: arrange submodule 391, for arranging MCS=MCS-1; Determine submodule 392, be connected to and submodule 391 is set, for according to arrange submodule 391 arrange MCS second frequency efficiency; Second judges submodule 393, is connected to and determines submodule 392, for judge to determine submodule 392 determine after second frequency efficiency whether be less than the 3rd frequency efficiency; 3rd scheduling sublayer module 394, is connected to the second judgement submodule 393, and for when second judges that submodule 393 judged result is no, then scheduling arranges submodule; 4th scheduling sublayer module 395, is connected to the second judgement submodule 393, for when second judges submodule 393 judged result as being, uses current MCS to dispatch business and UCI.Cancel submodule 396, be connected to and submodule 391 be set, for arrange submodule 391 arrange MCS be 0, then cancel dispatching services; 3rd judges submodule 397, is connected to and arranges submodule 391, for arrange submodule 391 arrange MCS be 0 time judge whether UCI meets transmission performance; 5th scheduling sublayer module 398, is connected to the 3rd and judges submodule 397, for when the 3rd judges the judged result of submodule 397 as meeting, PUSCH dispatches UCI; 6th scheduling sublayer module 399, is connected to the 3rd and judges submodule 397, for when the 3rd judging the judged result of submodule 397 as not meeting, again judging whether UCI comprises ACK/NAK, if judged result is for comprising, PUCCH dispatching ACK/NAK.
4th scheduling sublayer module 395 comprises: judging unit 3952, determines/non-determined ACK/NAK for judging whether UCI comprises; Adjustment unit 3954, is connected to judging unit 3952, for when the judged result of judging unit 3952 is for being, according to the current MCS of the Developing Tactics preset; First scheduling unit 3956, is connected to adjustment unit 3954, current MCS dispatching services and UCI on PUSCH after adjusting according to adjustment unit 3954; Second scheduling unit 3958, is connected to judging unit 3952, for when the judged result of judging unit 3952 is no, according to current MCS dispatching services and UCI on PUSCH.
Preferably, by following formulae discovery first spectrum efficiency R0:
By following formulae discovery second spectrum efficiency R1:
RE number Q ' shared by CQI
cQIfor:
wherein,
for the bit length sum of institute's available for transmission code block of CRC check corresponding to MSC, C is code block number,
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under general cyclic prefix CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that CQI (comprising PMI) takies; Q '
rIfor the RE number that RI takies; O
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI (comprising PMI); L is the CRC check bit length of CQI, works as O
cQIduring > 11, L=8, works as O
cQIl=0 when≤11;
with
be respectively the deviant of RI and CQI of default.
Pass through the above embodiment of the present invention, the cancellation spectrum efficiency of business of multiplexing UCI and the spectrum efficiency size of the business of multiplexing UCI are compared, when the second spectrum efficiency is less than the 3rd spectrum efficiency, MCS is used to dispatch business and UCI, when the second spectrum efficiency is greater than the 3rd spectrum efficiency, then adjust MCS until second frequency efficiency is less than the 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches to business and UCI.Can when UCI and service integration, base station can effectively be dispatched, and UCI and business can both reasonably be transmitted, and ensures the reliability of ul transmissions, obtains good ul transmissions performance.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a dispatching method, is characterized in that, comprising:
The second spectrum efficiency of the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI is determined according to the modulating-coding mechanism MCS obtained and available resource block RB number;
Determine that the spectrum efficiency of described first spectrum efficiency and the Operation system setting sum that fluctuates is the 3rd spectrum efficiency;
Judge whether described second spectrum efficiency is less than described 3rd spectrum efficiency;
If judged result is yes, then described MCS is used to dispatch business and UCI;
If judged result is no, then adjust described MCS until described second frequency efficiency is less than described 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches to described business and described UCI;
By following formulae discovery first spectrum efficiency R
0:
By following formulae discovery second spectrum efficiency R
1:
RE number Q ' shared by CQI
cQIfor:
wherein
for the bit length sum of institute's available for transmission code block of CRC check corresponding to MSC, C is code block number,
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under general cyclic prefix CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that channel quality indicator (CQI) and pre-coding matrix index PMI take; Q '
rIfor the RE number that RI takies; O
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI and PMI; L is the CRC check bit length of CQI, works as O
cQIduring >11, L=8, works as O
cQIwhen≤11, L=0;
for the deviant of the RI of default,
for the deviant of the CQI of default.
2. method according to claim 1, is characterized in that, uses described MCS to carry out scheduling to business and UCI and comprises:
Judge whether described UCI comprises and determine/non-determined ACK/NAK;
If judged result is yes, then according to MCS described in the Developing Tactics preset, and according to execution cost business and described UCI on the MCS after adjustment physically row shared channel PUSCH;
If judged result is no, then according to described MCS execution cost business and described UCI on PUSCH.
3. method according to claim 1, is characterized in that, adjusts described MCS until described second frequency efficiency is less than described 3rd spectrum efficiency, and the MCS after Use Adjustment carries out scheduling to described business and described UCI comprises:
Setting steps: MCS=MCS-1 is set;
Determining step: determine described second frequency efficiency according to the MCS of described setting;
Determining step: judge whether the described second frequency efficiency after determining is less than described 3rd frequency efficiency, if judged result is no, then be back to described setting steps, if judged result is yes, then use current MCS to dispatch described business and described UCI.
4. method according to claim 3, is characterized in that, uses current MCS to carry out scheduling to described business and described UCI and comprises:
Judge whether described UCI comprises and determine/non-determined ACK/NAK;
If judged result is yes, then according to current MCS described in the Developing Tactics preset, and according to current MCS execution cost business and the described UCI on PUSCH after adjustment;
If judged result is no, then according to described current MCS execution cost business and described UCI on PUSCH.
5. method according to claim 3, is characterized in that,
If the MCS of described setting is 0, then cancels execution cost business, and judge whether described UCI meets transmission performance;
If judged result is satisfied, then execution cost UCI on PUSCH;
If judged result is not for meet, then again judge whether described UCI comprises ACK/NAK, if judged result is for comprising, then execution cost ACK/NAK on PUCCH.
6. an evolved base station eNB, is characterized in that, comprising:
First determination module, for determining the second spectrum efficiency of the first spectrum efficiency of the business cancelling multiplexing ascending control information UCI and the business of multiplexing UCI according to the modulating-coding mechanism MCS obtained and available resource block RB number;
Second determination module, for determining that the spectrum efficiency of described first spectrum efficiency and the Operation system setting sum that fluctuates is the 3rd spectrum efficiency;
Judge module, for judging whether described second spectrum efficiency is less than described 3rd spectrum efficiency;
First scheduler module, for when judged result is for being, uses described MCS to dispatch business and UCI;
Second scheduler module, during for being no in judged result, adjust described MCS until described second frequency efficiency is less than described 3rd spectrum efficiency, and the MCS after Use Adjustment dispatches to described business and described UCI;
By following formulae discovery first spectrum efficiency R
0:
By following formulae discovery second spectrum efficiency R
1:
RE number Q ' shared by CQI
cQIfor:
wherein,
for the bit length sum of institute's available for transmission code block of CRC check corresponding to MSC, C is code block number,
for the subcarrier number of PUSCH channel occupancy, size is 12 be multiplied by RB number;
for the symbol numbers that PUSCH business takies, under general cyclic prefix CP, during without Sounding,
when having Sounding,
q '
cQIfor the RE number that channel quality indicator (CQI) and pre-coding matrix index PMI take; Q '
rIfor the RE number that RI takies; O
rIfor the original bit number of RI; O
cQIfor the original bit number of CQI and PMI; L is the CRC check bit length of CQI, works as O
cQIduring >11, L=8, works as O
cQIwhen≤11, L=0;
for the deviant of the RI of default,
for the deviant of the CQI of default.
7. eNB according to claim 6, is characterized in that, described first scheduler module comprises:
First judges submodule, determines/non-determined ACK/NAK for judging whether described UCI comprises;
First adjustment submodule, for when judged result is for being, according to MCS described in the Developing Tactics preset;
First scheduling sublayer module, for according to execution cost business and the described UCI on row shared channel PUSCH physically of the MCS after adjustment;
Second scheduling sublayer module, during for being no in judged result, according to described MCS execution cost business and described UCI on PUSCH.
8. eNB according to claim 6, is characterized in that, described second scheduler module comprises:
Submodule is set, for arranging MCS=MCS-1;
Determine submodule, for determining described second frequency efficiency according to the MCS of described setting;
Second judges submodule, for judging whether the described second frequency efficiency after determining is less than described 3rd frequency efficiency;
3rd scheduling sublayer module, during for being no in judged result, then execution cost arranges submodule;
4th scheduling sublayer module, for when judged result is for being, uses current MCS to dispatch described business and described UCI.
9. eNB according to claim 8, is characterized in that, the 4th scheduling sublayer module comprises:
Judging unit, determines/non-determined ACK/NAK for judging whether described UCI comprises;
Adjustment unit, for when judged result is for being, according to current MCS described in the Developing Tactics preset;
First scheduling unit, for according to adjustment after current MCS execution cost business and described UCI on PUSCH;
Second scheduling unit, during for being no in judged result, according to described current MCS execution cost business and described UCI on PUSCH.
10. eNB according to claim 8, is characterized in that, described second scheduler module also comprises:
Cancelling submodule, for being 0 at the MCS of described setting, then cancelling execution cost business;
3rd judges submodule, for and judge whether described UCI meets transmission performance;
5th scheduling sublayer module, for when judged result is for meeting, execution cost UCI on described PUSCH;
6th scheduling sublayer module, for when judged result is not for meeting, judges whether described UCI comprises ACK/NAK again, if judged result is for comprising, and execution cost ACK/NAK on described PUCCH.
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