CN103428841B - Method and device for determining power authorization - Google Patents
Method and device for determining power authorization Download PDFInfo
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- CN103428841B CN103428841B CN201310344476.2A CN201310344476A CN103428841B CN 103428841 B CN103428841 B CN 103428841B CN 201310344476 A CN201310344476 A CN 201310344476A CN 103428841 B CN103428841 B CN 103428841B
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Abstract
The invention discloses a method and a device for determining power authorization. The method includes the steps: acquiring a first data volume to be currently transmitted of UE (user equipment) by base station equipment, and acquiring a second data volume capable of being transmitted by the UE within a TTI (transmission time interval); determining the number of first MAC-d PDUs (protocol data units) by the base station equipment according to the first data volume, and determining the number of second MAC-d PDUs by the base station equipment according to the second data volume; determining a modified TBS value of a transport block size by the base station equipment according to the number of the second MAC-d PDUs and determining the power authorization corresponding to the UE by the base station equipment according to the modified TBS value when the number of the second MAC-d PDUs is smaller than that of the first MAC-d PDUs; determining the modified TBS value by the base station equipment according to the number of the first MAC-d PDUs and determining the power authorization corresponding to the UE by the base station equipment according to the modified TBS value when the number of the second MAC-d PDUs is larger than or equal to that of the first MAC-d PDUs. By the aid of the method and the device, dispatching efficiency and transport efficiency can be improved, resource utilization rate is increased, and the throughput capacity of a cell is improved.
Description
Technical field
The present invention relates to communication technical field, the determination method and apparatus of more particularly, to a kind of power grants.
Background technology
In prior art, in order to determine UE (User Equipment, user equipment) corresponding power grants, need true
(Transmission Time Interval, between transmission time in this TTI to determine UE the first data volume currently to be sent and UE
Every) in after the second data volume that can send, by being compared to the first data volume and the second data volume, and based on comparing
Result determines the corresponding power grants of UE.
Specifically, if the first data volume is more than the second data volume, UE corresponding power grants PRRI is：Wherein, PthdActual signal to noise ratio for UE, SF is spreading factor, CIRth2For
The corresponding signal to noise ratio of highest code check of high-rise configuration, ΔharqFor power bias.
Further, if the first data volume is less than the second data volume, firstly the need of obtaining revised ENI (E-
UCCH (up-enhancing control channel) channel number), and code check is recalculated according to revised ENI, then utilize again
The code check calculating determines UE corresponding power grants PRRI.
In prior art, base station equipment after the corresponding power grants of UE are determined using above-mentioned processing mode, as Fig. 1 institute
Show, when being that the first data volume is more than the second data volume, the simulation result schematic diagram of Matlab；As shown in Fig. 2 being the first data volume
During less than the second data volume, the simulation result schematic diagram of Matlab.
As can be seen that the power grants (beta0e) in base station equipment are respectively -11dB from the simulation result of Fig. 1, -
When 10dB, -9dB, corresponding transmission block (TBS_real) is respectively 469bit, 539bit, 619bit, and during due to data transfer
Can only carry whole MAC (Media Access Control, medium access control)-d PDU (Protocol Data Unit,
Protocol Data Unit), the bit number that MAC-d PDU can carry is 336bit, therefore, can transmit in the case of these three
MAC-d PDU number be all 1.Existing algorithm the first data volume be more than the second data volume when it may appear that power grants be-
When 11dB, -10dB, -9dB, the MAC-d PDU number that UE can transmit is all 1 situation, thus causing EPUCH (to strengthen up
Physical channel) time slot uplink interference is bigger than normal and the low problem of efficiency of transmission.
As can be seen that TBS (Transport Block Size, transport block size) is respectively from the simulation result of Fig. 2
When 564bit, 591bit, 619bit, it is less than the first data values of the second data volume, the first data volume calculates respectively accordingly
The power grants needing are -9dB.As can be seen that the power grants (beta0e) of -9dB are corresponding from the simulation result of Fig. 1
Transmission block (TBS_real) is 619bit, is now merely able to transmit the MAC-d PDU of 1 336bit, in transmission primaries MAC-d
After PDU, the first data values are changed to (564-336) bit, (591-336) bit, (619-336) bit, now also need to continue
Continuous this UE that dispatches could pass remaining first data values.Existing algorithm the first data volume be less than the second data volume when, work(
Rate mandate is insufficient to allow UE disposably to send all of first data values, needs scheduling that UE repeatedly can be made to have sent institute
The first data values having, thus cause the low problem of dispatching efficiency.
Content of the invention
The embodiment of the present invention provides a kind of determination method and apparatus of power grants, to improve dispatching efficiency and transmission effect
Rate, and improve resource utilization and cell throughout.
In order to achieve the above object, the embodiment of the present invention provides a kind of determination method of power grants, including：
Base station equipment obtains user equipment (UE) the first data volume currently to be sent, and obtains described UE in this transmission time
The second data volume that can send in the TTI of interval；
Described base station equipment determines first medium access-control protocol data cell MAC-d using described first data volume
PDU number, and determine the 2nd MAC-d PDU number using described second data volume；
When described 2nd MAC-d PDU number is less than a described MAC-d PDU number, described base station equipment utilizes institute
State the 2nd MAC-d PDU number and determine revised transport block size TBS value, and determine institute using described revised TBS value
State the corresponding power grants of UE；
When described 2nd MAC-d PDU number is more than or equal to a described MAC-d PDU number, described base station equipment profit
Determine revised TBS value with a described MAC-d PDU number, and determine described UE pair using described revised TBS value
The power grants answered.
The embodiment of the present invention provides a kind of base station equipment, and described base station equipment specifically includes：
Obtain module, first data volume currently to be sent for obtaining user equipment (UE), and obtain described UE in this biography
The second data volume that can send in defeated time interval TTI；
First determining module, for determining first medium access-control protocol data cell using described first data volume
MAC-d PDU number, and determine the 2nd MAC-d PDU number using described second data volume；
Second determining module, for when described 2nd MAC-d PDU number be less than a described MAC-d PDU number when,
Determine revised transport block size TBS value using described 2nd MAC-d PDU number, and utilize described revised TBS value
Determine the corresponding power grants of described UE；
When described 2nd MAC-d PDU number is more than or equal to a described MAC-d PDU number, using described first
MAC-d PDU number determines revised TBS value, and determines that the corresponding power of described UE is awarded using described revised TBS value
Power.
Compared with prior art, the embodiment of the present invention at least has advantages below：In the embodiment of the present invention, in the first data
When amount is more than the second data volume (now the first data volume is abundant), by reducing power grants, to reach the transmitting reducing EPUCH
Power, reduces EPUCH time slot interference, improves the purpose of efficiency of transmission.It is less than the second data volume (now first in the first data volume
Data volume is less) when, by increasing power grants, so that the first data volume has once been passed by UE, reduce scheduling times, and improve
Dispatching efficiency.Further, by improving dispatching efficiency and efficiency of transmission, thus improve resource utilization, and improve
Cell throughout, and can lift system performance, think operator rise in value.
Brief description
In order to be illustrated more clearly that technical scheme, the accompanying drawing of required use in embodiment being described below
Be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 and Fig. 2 is the simulation result schematic diagram of Matlab in prior art；
Fig. 3 is a kind of determination method flow schematic diagram of power grants that the embodiment of the present invention one provides；
Fig. 4 is a kind of structural representation of base station equipment that the embodiment of the present invention two provides.
Specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, shows
So, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, all
Belong to the scope of protection of the invention.
Embodiment one
For problems of the prior art, the embodiment of the present invention one provides a kind of determination method of power grants, should
Method may at least apply for TD-SCDMA (Time Division-Synchronous Code Division Multiple
Access, TD SDMA) in system, and be used for improving HSUPA (High Speed Uplink Packet
Access, High Speed Uplink Packet accesses) efficiency of transmission of business and dispatching efficiency, as shown in figure 3, this power grants is really
The method of determining comprises the following steps：
Step 301, base station equipment obtains UE the first data volume (it is properly termed as Buffer) currently to be sent, and obtains
The second data volume (it is properly termed as bo) that UE can send in this TTI.
In the embodiment of the present invention, base station equipment obtains UE the first data volume currently to be sent, is specifically including but not limited to
Following manner：The SI (Scheduling Information, uplink scheduling information) that base station equipment reported according to UE the last time
Information and the E-TFCI (Enhance-Transport Format Combination Indicator, the enhancing that subsequently receive
Dedicated channel transport format joint instructions) information, statistics UE the first data volume currently to be sent, this statistic processes present invention is real
Apply in example and no longer repeat in detail.
In the embodiment of the present invention, base station equipment obtains the second data volume that can send in this TTI of UE, specifically include but
It is not limited to following manner：Base station equipment determines, using equation below, the second data volume that UE can send in this TTI, and (it is permissible
Referred to as bo)：Wherein, SF is spreading factor, and SF=1 or SF
=2 or SF=4 or SF=8 or SF=16；NtskNeed the timeslot number taking for UE；V (t) is according to code check and signal to noise ratio
Mapping relations, the obtained corresponding code check of revised signal to noise ratio；Nsysmbol_euuchENI (the E-UCCH mapping for v (t)
(Enhance-Uplink Control Channel up-enhancing control channel) channel number) corresponding to symbol numbers；
Bit_mod is to specify value, and the generally fixation of bit_mod value is chosen for 4.
NtskNeed the timeslot number taking for UE, and Ntsk=min { Nts, NUE, NtsRepresent this UE available maximum resource block
The number of time slots being related to, NUEIt is the maximum number of time slots that this UE ability is supported.
Revised signal to noise ratio isAnd UPHkThe letter reporting for UE
Make an uproar and compare, PebaseRepresent the jamming power of base station equipment measurement,And LMetricThe circuit loss value reporting for UE,
RoTtotalRepresent the initial gain value of base station equipment maximum uplink received power.
Further, whenWhen, according to the mapping relations of code check and signal to noise ratio, obtain
Revised signal to noise ratioCorresponding code check v (t), maps E-UCCH channel number ENI according to v (t).WhenWhen, increase spreading factor SF, be followed successively by SF=2, SF=4, SF=8, SF=16, until finding phase
Code rate so thatMapping relations according to code check and signal to noise ratio afterwards, obtain revised
Signal to noise ratioCorresponding code check v (t), maps E-UCCH channel number ENI according to v (t)；If spreading factor is to SF
=16 still can not meet requirement, then resource allocation failure, terminate the resource allocation of UE.WhenWhen, directly
Determine that code check v (t) is the highest code check that high level is specified, E-UCCH channel number ENI is mapped according to v (t).CIRth1Join for high level
The corresponding signal to noise ratio of lowest bit rate put, CIRth2The corresponding signal to noise ratio of highest code check for high-rise configuration.
Step 302, base station equipment determines a MAC-d PDU number using the first data volume (it is properly termed as Buffer)
(it is properly termed as PDUnum_buffer), and determine the 2nd MAC-d PDU number using the second data volume (it is properly termed as bo)
(it is properly termed as PDUnum_bo).
In the embodiment of the present invention, base station equipment determines a MAC-d PDU number using the first data volume, specifically include but
It is not limited to following manner：Base station equipment determines that a MAC-d PDU number is specially：To (the first data volume/mono- MAC-d
The bit number that PDU can carry) round up.So that the bit number that a MAC-d PDU can carry is 336 as a example, then base station
Equipment can determine PDUnum_buffer=ceil (Buffer/336), and Buffer is the first data volume, and ceil represents upwards
Round.
In the embodiment of the present invention, base station equipment determines the 2nd MAC-d that can carry in this TTI using the second data volume
PDU number, and base station equipment determines the 2nd MAC-d PDU number that can carry in this TTI using the second data volume, concrete bag
Include but be not limited to following manner：Base station equipment determines that the 2nd MAC-d PDU number that can carry in this TTI is specially：To (repairing
The bit number that just front TBS value/mono- MAC-d PDU can carry) round downwards；Wherein, the TBS value before correction is specially：
Second data volume deducts CRC_bits, and deducts Tail_bits, and CRC_bits is check bit, and Tail_bits is tail bit.
So that the bit number that a MAC-d PDU can carry is 336 as a example, then base station equipment can determine this TTI interior energy
Enough PDUnum_bo=floor (TBS/336) carrying, TBS represents the TBS value before correction, and TBS=bo-CRC_bits-
Tail_bits, bo represent the second data volume, and floor represents and rounds downwards.
Step 303, base station equipment compares the 2nd MAC-d PDU number and a MAC-d PDU number；As the 2nd MAC-d
When PDU number is less than a MAC-d PDU number, execution step 304；When the 2nd MAC-d PDU number is more than or equal to first
During MAC-d PDU number, execution step 305.
Step 304, base station equipment determines revised TBS value using the 2nd MAC-d PDU number (PDUnum_bo), and
Determine the corresponding power grants of UE using revised TBS value.
In the embodiment of the present invention, base station equipment determines revised TBS value using the 2nd MAC-d PDU number, concrete bag
Include but be not limited to following manner：Base station equipment judges (TBS value the-the two MAC-d mono- MAC-d PDU of PDU number * before correction
Bit number-the default value that can carry) whether it is not less than 0；If it is, base station equipment selects greatly from transport block size table
In all TBS values of (bit number+default value that the 2nd mono- MAC-d PDU of MAC-d PDU number * can carry)
Little TBS value, and determine the minimum TBS value for selection for the revised TBS value；If it is not, then base station equipment is from transport block size table
In the middle all TBS values selecting more than (bit number that the 2nd mono- MAC-d PDU of MAC-d PDU number * can carry)
Little TBS value, and determine the minimum TBS value for selection for the revised TBS value；Further, the TBS value before correction is specially：The
Two data volumes deduct CRC_bits, and deduct Tail_bits, and CRC_bits is check bit, and Tail_bits is tail bit.
Wherein, default value is the size of the SI information needing to carry, and it typically is 23；Can with a MAC-d PDU
As a example the bit number carrying is 336, then base station equipment judges whether (TBS-PDUnum_bo*336-23) is not less than 0；If it is,
Then base station equipment selects more than the minimum TBS value in all TBS values of (PDUnum_bo*336+23) from transport block size table,
And determine the minimum TBS value for selection for the revised TBS value；If it is not, then base station equipment selects greatly from transport block size table
Minimum TBS value in all TBS values of (PDUnum_bo*336), and determine the minimum TBS for selection for the revised TBS value
Value；Wherein, above-mentioned TBS=bo-CRC_bits-Tail_bits.
Step 305, base station equipment determines revised TBS using MAC-d PDU number (PDUnum_buffer)
Value, and determine the corresponding power grants of UE using revised TBS value.
In the embodiment of the present invention, base station equipment determines revised TBS value using a MAC-d PDU number, concrete bag
Include but be not limited to following manner：Base station equipment judges (TBS value the-the one MAC-d mono- MAC-d PDU of PDU number * before correction
Bit number-the default value that can carry) whether it is not less than 0；If it is, base station equipment selects greatly from transport block size table
In all TBS values of (bit number+default value that mono- MAC-d PDU of MAC-d PDU number * can carry)
Little TBS value, and determine the minimum TBS value for selection for the revised TBS value；If it is not, then base station equipment is from transport block size table
In the middle all TBS values selecting more than (bit number that mono- MAC-d PDU of MAC-d PDU number * can carry)
Little TBS value, and determine the minimum TBS value for selection for the revised TBS value；Wherein, the TBS value before correction is specially：Second number
Deduct CRC_bits according to amount, and deduct Tail_bits, CRC_bits is check bit, Tail_bits is tail bit.
Wherein, default value is the size of the SI information needing to carry, and it typically is 23；Can with a MAC-d PDU
As a example the bit number carrying is 336, then base station equipment judges whether (TBS-PDUnum_buffer*336-23) is not less than 0；As
Fruit is that then base station equipment selects in all TBS values more than (PDUnum_buffer*336+23) from transport block size table
Minimum TBS value, and determine the minimum TBS value for selection for the revised TBS value；If it is not, then base station equipment is from transport block size
Select more than the minimum TBS value in all TBS values of (PDUnum_buffer*336) in table, and determine that revised TBS value is
The minimum TBS value selecting；Wherein, above-mentioned TBS=bo-CRC_bits-Tail_bits.
In the embodiment of the present invention, transport block size table is transport block size table specified in 25.321 agreements, its one kind tool
Body implementation is as shown in table 1.Based on the transport block size table shown in table 1 it is assumed that UE ability rating is 5, and adopt 3 time slots
TBS, when PDUnum_bo is 1, the minimum TBS value more than (PDUnum_bo*336+23) selecting from table 1 is 375；When
When PDUnum_buffer is 2, the minimum TBS value more than (PDUnum_buffer*336+23) selecting from table 1 is 716.
Table 1
In the embodiment of the present invention, for step 304 and step 305, base station equipment utilizes revised TBS value to determine UE pair
The power grants answered, are specifically including but not limited to following manner：Base station equipment determines the power grants of UE using equation below
PRRI：PthdActual signal to noise ratio for UE, SF be spread spectrum because
Son, SNR (t) is the signal to noise ratio being determined using revised TBS value, ΔharqFor power bias, CIRth2For high-rise configuration
The corresponding signal to noise ratio of high code check.
It is further detailed to using the process of revised TBS value determination SNR (t) below.
Assume that revised TBS value is BufferKT (), then base station equipment is first with equation below calculating code check：Afterwards, base station equipment is based on code check v'(t) map revised ENI,
ENI (is assumed to be based on revised ENIk(t)), base station equipment utilizes equation below to calculate code check：Afterwards, base station equipment utilizes the mapping relations of code check and signal to noise ratio,
Obtaining code check v " signal to noise ratio corresponding to (t) is SNR (t).Wherein, fNdataIt is for calculating the current function carrying bit number；SFkT () is spreading factor, ENI=1.
In sum, in the embodiment of the present invention, when the first data volume is more than the second data volume (the first data volume is abundant),
By reducing power grants, to reach the transmission power reducing EPUCH, reduce EPUCH time slot interference, improve the mesh of efficiency of transmission
's.When the first data volume is less than the second data volume (the first data volume is less), by increasing power grants, make UE once by the
One data volume has passed, and reduces scheduling times, and improves dispatching efficiency.Further, by improving dispatching efficiency and transmission effect
Rate, thus improving resource utilization, and improves cell throughout, and can lift system performance, think operator rise in value.
Embodiment two
Based on the inventive concept same with said method, in the embodiment of the present invention, additionally provide a kind of base station equipment, such as Fig. 4
Shown, described base station equipment specifically includes：
Obtain module 11, first data volume currently to be sent for obtaining user equipment (UE), and obtain described UE at this
The second data volume that can send in Transmission Time Interval TTI；
First determining module 12, for determining first medium access-control protocol data cell using described first data volume
MAC-d PDU number, determines the 2nd MAC-d PDU number using described second data volume；
Second determining module 13, for being less than a described MAC-d PDU number when described 2nd MAC-d PDU number
When, determine revised transport block size TBS value using described 2nd MAC-d PDU number, and utilize described revised TBS
Value determines the corresponding power grants of described UE；
When described 2nd MAC-d PDU number is more than or equal to a described MAC-d PDU number, using described first
MAC-d PDU number determines revised TBS value, and determines that the corresponding power of described UE is awarded using described revised TBS value
Power.
Described first determining module 12, is specially specifically for the described MAC-d PDU number of determination：To (described
The bit number that one data volume/mono- MAC-d PDU can carry) round up.
Described first determining module 12, is specially specifically for the described 2nd MAC-d PDU number of determination：To (before correction
The bit number that can carry of TBS value/mono- MAC-d PDU) round downwards；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_
Bits, described CRC_bits are check bit, and described Tail_bits is tail bit.
Described second determining module 13, specifically for judging (the TBS value before correction-described 2nd MAC-d PDU number *
Bit number-default value that one MAC-d PDU can carry) whether it is not less than 0；If it is, selecting from transport block size table
Select the institute more than (bit number+described default value that described 2nd mono- MAC-d PDU of MAC-d PDU number * can carry)
There is the minimum TBS value in TBS value, and determine the minimum TBS value for selection for the revised TBS value；If not, from transport block size
The all TBS values more than (bit number that described 2nd mono- MAC-d PDU of MAC-d PDU number * can carry) are selected in table
In minimum TBS value, and determine the minimum TBS value for selection for the revised TBS value；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_
Bits, described CRC_bits are check bit, and described Tail_bits is tail bit.
Described second determining module 13, specifically for judging (the TBS value before correction-described MAC-d PDU number *
Bit number-default value that one MAC-d PDU can carry) whether it is not less than 0；If it is, selecting from transport block size table
Select the institute more than (bit number+described default value that described mono- MAC-d PDU of MAC-d PDU number * can carry)
There is the minimum TBS value in TBS value, and determine the minimum TBS value for selection for the revised TBS value；If not, from transport block size
The all TBS values more than (bit number that described mono- MAC-d PDU of MAC-d PDU number * can carry) are selected in table
In minimum TBS value, and determine the minimum TBS value for selection for the revised TBS value；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_
Bits, described CRC_bits are check bit, and described Tail_bits is tail bit.
Described second determining module 13, specifically for determining described UE corresponding power grants PRRI using equation below：Wherein, PthdActual signal to noise ratio for UE, SF be spread spectrum because
Son, SNR (t) is the signal to noise ratio being determined using described revised TBS value, ΔharqFor power bias, CIRth2For high-rise configuration
The corresponding signal to noise ratio of highest code check.
Described acquisition module 11, specifically for determine that described UE can send in this TTI using equation below second
Data volume bo：Wherein, SF is spreading factor, Nt skNeed for UE
The timeslot number taking, v (t) is according to code check and the corresponding code of revised signal to noise ratio obtained by the mapping relations of signal to noise ratio
Rate, Nsysmbol_euuchThe symbol corresponding to up-enhancing control channel E-UCCH channel number ENI mapping for described v (t)
Number, bit_mod is to specify value.
Wherein, the modules of apparatus of the present invention can be integrated in one it is also possible to be deployed separately.Above-mentioned module can be closed
And for a module it is also possible to be further split into multiple submodule.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of necessary general hardware platform to realize naturally it is also possible to pass through hardware, but the former is more in many cases
Good embodiment.Based on such understanding, technical scheme substantially contributes to prior art in other words
Partly can be embodied in the form of software product, this computer software product is stored in a storage medium, if including
Dry instruction is with so that a computer equipment (can be personal computer, server, or network equipment etc.) executes this
Method described in each embodiment bright.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or stream
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that module in device in embodiment can be carried out point according to embodiment description
It is distributed in the device of embodiment and be disposed other than in one or more devices of the present embodiment it is also possible to carry out respective change.On
The module stating embodiment can merge into a module it is also possible to be further split into multiple submodule.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
The several specific embodiments being only the present invention disclosed above, but, the present invention is not limited to this, any ability
What the technical staff in domain can think change all should fall into protection scope of the present invention.
Claims (14)
1. a kind of determination method of power grants is it is characterised in that the method includes：
Base station equipment obtains user equipment (UE) the first data volume currently to be sent, and obtains described UE in this Transmission Time Interval
The second data volume that can send in TTI；
Described base station equipment determines first medium access-control protocol data cell MAC-d PDU using described first data volume
Number, and determine the 2nd MAC-d PDU number using described second data volume；
When described 2nd MAC-d PDU number is less than a described MAC-d PDU number, described base station equipment utilizes described the
Two MAC-d PDU numbers determine revised transport block size TBS value, and determine described UE using described revised TBS value
Corresponding power grants；
When described 2nd MAC-d PDU number is more than or equal to a described MAC-d PDU number, described base station equipment utilizes institute
State a MAC-d PDU number and determine revised TBS value, and determine that described UE is corresponding using described revised TBS value
Power grants.
2. the method for claim 1 is it is characterised in that described base station equipment determines first using described first data volume
MAC-d PDU number, specifically includes：
Described base station equipment determines that a described MAC-d PDU number is specially：Right（Described first data volume/mono- MAC-d
The bit number that PDU can carry）Round up.
3. the method for claim 1 is it is characterised in that described base station equipment determines second using described second data volume
MAC-d PDU number, specifically includes：
Described base station equipment determines that described 2nd MAC-d PDU number is specially：Right（TBS value/mono- MAC-d before correction
The bit number that PDU can carry）Round downwards；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_bits,
Described CRC_bits is check bit, and described Tail_bits is tail bit.
4. the method for claim 1 is it is characterised in that described base station equipment utilizes described 2nd MAC-d PDU number
Determine revised TBS value, specifically include：
Described base station equipment judges（TBS value before correction-described 2nd mono- MAC-d PDU of MAC-d PDU number * can hold
Bit number-the default value carrying）Whether it is not less than 0；
If it is, described base station equipment selects to be more than from transport block size table（Described mono- MAC- of 2nd MAC-dPDU number *
The bit number that d PDU can carry+described default value）All TBS values in minimum TBS value, and determine revised TBS
It is worth the minimum TBS value for selection；
If not, described base station equipment selects to be more than from transport block size table（Described mono- MAC- of 2nd MAC-dPDU number *
The bit number that d PDU can carry）All TBS values in minimum TBS value, and determine revised TBS value for selection
Little TBS value；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_bits,
Described CRC_bits is check bit, and described Tail_bits is tail bit.
5. the method for claim 1 is it is characterised in that described base station equipment utilizes a described MAC-d PDU number
Determine revised TBS value, specifically include：
Described base station equipment judges（TBS value before correction-described mono- MAC-d PDU of MAC-d PDU number * can hold
Bit number-the default value carrying）Whether it is not less than 0；
If it is, described base station equipment selects to be more than from transport block size table（Described mono- MAC- of MAC-dPDU number *
The bit number that d PDU can carry+described default value）All TBS values in minimum TBS value, and determine revised TBS
It is worth the minimum TBS value for selection；
If not, described base station equipment selects to be more than from transport block size table（Described mono- MAC- of MAC-dPDU number *
The bit number that d PDU can carry）All TBS values in minimum TBS value, and determine revised TBS value for selection
Little TBS value；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_bits,
Described CRC_bits is check bit, and described Tail_bits is tail bit.
6. the method for claim 1 is it is characterised in that described base station equipment utilizes described revised TBS value to determine
The corresponding power grants of described UE, specifically include：
Described base station equipment determines described UE corresponding power grants PRRI using equation below：
7. the method for claim 1 is it is characterised in that described base station equipment obtains described UE in this Transmission Time Interval
The second data volume that can send in TTI, specifically includes：Described base station equipment determines described UE in this TTI using equation below
Interior the second data volume bo that can send：
8. a kind of base station equipment is it is characterised in that described base station equipment specifically includes：
Obtain module, first data volume currently to be sent for obtaining user equipment (UE), and obtain described UE in this transmission
Between the second data volume that can send in the TTI of interval；
First determining module, for determining first medium access-control protocol data cell MAC-d using described first data volume
PDU number, and determine the 2nd MAC-d PDU number using described second data volume；
Second determining module, for when described 2nd MAC-d PDU number is less than a described MAC-dPDU number, using institute
State the 2nd MAC-d PDU number and determine revised transport block size TBS value, and determine institute using described revised TBS value
State the corresponding power grants of UE；
When described 2nd MAC-d PDU number is more than or equal to a described MAC-d PDU number, using a described MAC-d
PDU number determines revised TBS value, and determines the corresponding power grants of described UE using described revised TBS value.
9. base station equipment as claimed in claim 8 it is characterised in that
Described first determining module, is specially specifically for the described MAC-d PDU number of determination：Right（Described first data
The bit number that/mono- MAC-d PDU of amount can carry）Round up.
10. base station equipment as claimed in claim 8 it is characterised in that
Described first determining module, is specially specifically for the described 2nd MAC-d PDU number of determination：Right（TBS before correction
The bit number that value/mono- MAC-d PDU can carry）Round downwards；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_bits,
Described CRC_bits is check bit, and described Tail_bits is tail bit.
11. base station equipments as claimed in claim 8 it is characterised in that
Described second determining module, specifically for judging（TBS value before correction-described mono- MAC- of 2nd MAC-dPDU number *
Bit number-default value that d PDU can carry）Whether it is not less than 0；If it is, selecting to be more than from transport block size table（Institute
State bit number+described default value that the 2nd mono- MAC-dPDU of MAC-d PDU number * can carry）All TBS values in
Minimum TBS value, and determine the minimum TBS value for selection for the revised TBS value；If not, selecting big from transport block size table
In（The bit number that described 2nd mono- MAC-d PDU of MAC-d PDU number * can carry）All TBS values in minimum TBS
Value, and determine the minimum TBS value for selection for the revised TBS value；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_bits,
Described CRC_bits is check bit, and described Tail_bits is tail bit.
12. base station equipments as claimed in claim 8 it is characterised in that
Described second determining module, specifically for judging（TBS value before correction-described mono- MAC- of MAC-dPDU number *
Bit number-default value that d PDU can carry）Whether it is not less than 0；If it is, selecting to be more than from transport block size table（Institute
State bit number+described default value that mono- MAC-dPDU of MAC-d PDU number * can carry）All TBS values in
Minimum TBS value, and determine the minimum TBS value for selection for the revised TBS value；If not, selecting big from transport block size table
In（The bit number that described mono- MAC-d PDU of MAC-d PDU number * can carry）All TBS values in minimum TBS
Value, and determine the minimum TBS value for selection for the revised TBS value；
Wherein, the TBS value before described correction is specially：Described second data volume deducts CRC_bits, and deducts Tail_bits,
Described CRC_bits is check bit, and described Tail_bits is tail bit.
13. base station equipments as claimed in claim 8 it is characterised in that
Described second determining module, specifically for determining described UE corresponding power grants PRRI using equation below： Wherein, PthdActual signal to noise ratio for UE, SF is spread spectrum
The factor, SNR (t) is the signal to noise ratio being determined using described revised TBS value, ΔharqFor power bias, CIRth2Join for high level
The corresponding signal to noise ratio of highest code check put.
14. base station equipments as claimed in claim 8 it is characterised in that
Described acquisition module, specifically for determining, using equation below, the second data volume that described UE can send in this TTI
bo： Wherein, SF is spreading factor, NtskNeed occupancy for UE
Timeslot number, v (t) is according to code check and the corresponding code check of revised signal to noise ratio obtained by the mapping relations of signal to noise ratio,
Nsysmbol_euuchThe symbol numbers corresponding to up-enhancing control channel E-UCCH channel number ENI mapping for described v (t),
Bit_mod is to specify value.
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| JP7071500B2 (en) * | 2017-11-17 | 2022-05-19 | 中▲興▼通▲訊▼股▲ふぇん▼有限公司 | Methods, devices, and systems for determining transport block size in wireless communication |
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| CN101534548A (en) * | 2008-02-04 | 2009-09-16 | 三星电子株式会社 | Autonomous user equipment transmission power control in communication systems |
| CN102238647A (en) * | 2010-04-21 | 2011-11-09 | 鼎桥通信技术有限公司 | Spreading factor allocation method |
| CN102625436A (en) * | 2011-01-26 | 2012-08-01 | 鼎桥通信技术有限公司 | Authorized power acquiring method, apparatus and base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101534548A (en) * | 2008-02-04 | 2009-09-16 | 三星电子株式会社 | Autonomous user equipment transmission power control in communication systems |
| CN102238647A (en) * | 2010-04-21 | 2011-11-09 | 鼎桥通信技术有限公司 | Spreading factor allocation method |
| CN102625436A (en) * | 2011-01-26 | 2012-08-01 | 鼎桥通信技术有限公司 | Authorized power acquiring method, apparatus and base station |
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