CN103354537B - The apparatus and method of transmission block segment transmissions - Google Patents
The apparatus and method of transmission block segment transmissions Download PDFInfo
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- CN103354537B CN103354537B CN201310280771.6A CN201310280771A CN103354537B CN 103354537 B CN103354537 B CN 103354537B CN 201310280771 A CN201310280771 A CN 201310280771A CN 103354537 B CN103354537 B CN 103354537B
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Abstract
Disclose a kind of apparatus and method of transmission block segment transmissions.The method comprising the steps of：Transmission block is segmented and is sorted by bit number；Bit number according to segmentation determines the number of its physical resource for taking；Transmission block is encoded and the operation such as rate-matched；Physical resource mapping is carried out to each segmentation by the order of the bit number monotonic nondecreasing of segmentation.
Description
The application is the invention of entitled " apparatus and method of transmission block segment transmissions " in the submission on the 6th of August in 2007
The divisional application of patent application 200710143148.0.
Technical field
The present invention relates to wireless communication system, more specifically to a kind of transmission block is entered in a wireless communication system
The apparatus and method of row segment transmissions.
Background technology
Now, 3GPP standardization bodies have set about starting to carry out its existing system specification long-term evolution (LTE).
In the middle of numerous physical layer transmission technologies, downlink transfer technology based on OFDM (OFDM) and single carrier frequency division is based on
Multiple access accesses the focus that the uplink technology of (SCFDMA) is research.There are two kinds of hardwood structures in LTE：That is Class1 frame structure
(Type1Frame Structure) and 2 frame structure of type (Type2Frame Structure).There is FDD in Class1 frame structure
With two kinds of duplex modes of TDD, and in 2 frame structure of type only have a kind of duplex modes of TDD.With LTE Class1 FDD systems it is below
Prior art and problem in the current LTE system of example description, the problem are also existed in 2 system of LTE types.
According to the discussion result of current LTE, Fig. 1 is the descending frame structure of LTE Class1 FDD, radio frames (radio
Frame) time span (101-103) is 10ms；Each frame is divided into multiple time slots (slot) (104-107), current hypothesis
It is that each radio frames includes 20 time slots, the time span of time slot is 0.5ms；Each time slot includes multiple OFDM symbols again.Root
According to current it is assumed that the time span of effective OFDM symbol is about 66.7 μ s in LTE system.The time span of the CP of OFDM symbol
There can be two kinds, i.e., the time span of general CP (Normal CP, also referred to as short CP) is about 4.69 μ s or 5.21 μ s, plus
The time span of long CP (Extended CP, also referred to as long CP) is about 16.7 μ s, lengthen CP time slots be used for multiple cell broadcast/
The very big situation of multicast and radius of society, general CP time slots (108) include 7 OFDM symbols, lengthen CP time slots (109) and include
6 OFDM symbols.According to current discussion result, continuous two time slots constitute a subframe (subffame), and transmit
Time interval (TTI) is 1ms, equal to the time span of a subframe.
Fig. 2 is the up frame structure of LTE Class1 FDD systems, similar with descending frame structure, and its radio frames (201,202,203)
Time span be all 10ms with WCDMA phases；Each frame is subdivided into multiple time slots (204-207), and current hypothesis is each nothing
Line frame includes 20 time slots, and the time span of time slot is 0.5ms；Each time slot includes multiple SCFDMA symbols again.With downlink frame
Structure is consistent, and the CP of SCFDMA symbols has two kinds of length, i.e., general CP and lengthening CP, general CP time slots include 7 SCFDMA symbols
Number, lengthen CP time slots and include 6 SCFDMA symbols.According to current discussion result, continuous two time slots constitute a subframe
(subframe), and Transmission Time Interval (TTI) is 1ms, equal to the time span of a subframe.
In the discussion of current LTE, corresponding to the sub- hardwood of unicast of Class1 frame structure, descending reference letter during general CP
Number structure is as shown in Figure 3.It should be noted that in order to describe comprehensively, there are four transmitting antennas base station in this configuration.Work as base station
During an only antenna, then in antenna 1, on antenna 2, and the running time-frequency resource of reference signal that used of antenna 3, do not send any
Reference signal.When base station there are two antennas, then in antenna 2, and do not send out on the running time-frequency resource of reference signal that used of antenna 3
Send any reference signal.In the structure shown here, the reference signal between different antennae is by the way of frequency division multiplexing, i.e. different antennae
Reference signal use different running time-frequency resources.The reference signal of every antenna is 1/6 in the density of frequency-domain transmission, i.e., when certain day
When the reference signal of line is transmitted in certain OFDM symbol, there is the sub- carrier-wave transmission antenna in frequency domain is per six subcarriers
Reference signal.The reference signal of antenna 0 and antenna 1 is transmitted in the OFDM symbol 0 and OFDM symbol 4 of row time slot in each of the lower,
And the reference signal of antenna 2 and antenna 3 is transmitted in the OFDM symbol 1 of row time slot in each of the lower.In addition, begging for according to current LTE
The reference signal of whether transmission antenna 2 and antenna 3 can be configured by, base station.
In the discussion of current LTE, the uplink reference signals structure of Class1 frame structure is as shown in Figure 4.Example one is one
As CP subframes uplink reference signals structure, each time slot include 7 SCFDMA symbols, be designated as symbol #0～symbol #6, then position
SCFDMA symbols (i.e. symbol #3) in the middle of the time slot are for transmitting uplink reference signal.Example two is the up of lengthening CP subframes
Reference signal structure, each time slot include 6 SCFDMA symbols, are designated as symbol #0～symbol #5, then the symbol # of first time slot
2 and second time slot symbol #3 be used for transmitting uplink reference signal.In above-mentioned uplink reference signals structure, when user equipment it is same
When on multiple antennas sending signal when, the reference signal of multiple antennas is by the way of CDM in each time slot as reference
Transmit on the symbol of signal.
According to the discussion result of current LTE, when the bit number of transmission block is more than certain value Z (being that Z is equal to 6144) in LTE
During so as to needing to be segmented, in order that receiving terminal can carry out parallel decoding operation so as to accelerate reception processing to each segmentation
Speed, rate-matched is that each segmentation is carried out respectively, and when physical resource maps, and each piecemeal is being similar to TDM's
Mode is mapped to the segmentation of the resource in a TTI, i.e., and is only mapped on a part of symbol inside TTI.For example, some points
Section is mapped on the anterior symbols of TTI, on the symbol of other subsection compressions to TTI rear portions.In LTE, symbol here exists
Descending is OFDM symbol, it is up be SCFDMA symbols.So, recipient need not wait until that all symbols of whole TTI have been received
Finish, after several symbols comprising a segmentation are received, it is possible to which this segmentation is processed, and while receive TTI's
Symbol below, so as to reach the purpose to each segmentation parallel processing.
This method to multiple segmentation parallel processings, an important problem is the problem of channel estimation.In order to
Decoding process is carried out to segmentation as soon as possible, to some segmentations, recipient can not will be entered using all reference signals in whole TTI
Row channel estimation, so as to certain loss is brought in precision of channel estimation.Specifically, to uploading in TTI anterior symbol
Defeated segmentation, the reference signal at this TTI rear portion would be unavailable for channel estimation, and the number of available reference signal is less, so as to
The precision of channel estimation is relatively low；And the segmentation to transmitting on the symbol at TTI rear portions, all references inside this TTI
Signal may be used to channel estimation, and the number of available reference signal is more, so as to the precision of channel estimation is of a relatively high.According to
Analysis to precision of channel estimation, the decoding performance of each segmentation in a TTI is different, for example, positioned at the anterior symbols of TTI
The decoding performance of the segmentation on number is poor, and the decoding performance of the segmentation being located on the symbol of TTI rear portions is preferable.
The content of the invention
It is an object of the invention to provide a kind of equipment that segment transmissions are carried out to transmission block in a wireless communication system and
Method.
It is an aspect of this invention to provide that a kind of transmission block segmentation and the method for distributing physical resource, comprise the steps：
A) transmission block is segmented and is sorted by bit number；
B) number of its physical resource for taking is determined according to the bit number of segmentation；
C) transmission block is encoded and the operation such as rate-matched；
D) physical resource mapping is carried out to each segmentation by the order of the bit number monotonic nondecreasing of segmentation.
It is another aspect of this invention to provide that a kind of method for carrying out HARQ transmission to transmission block segmentation, comprises the steps：
A) transmission block is segmented, and each is separately encoded；
B) each HARQ data is transmitted, determines the physical resource number that each subsection compression is arrived respectively, and to each point
Duan Jinhang rate-matcheds；
C) each HARQ data is transmitted, determines that each is fragmented into the mapping order of physical resource respectively, and complete physics
Esource impact.
It is another aspect of this invention to provide that mapping and transmission method of a kind of up direction to the segmentation of transmission block, including
Following steps：
A) user equipment is segmented to transmission block；
B) user equipment is encoded and rate-matched to each segmentation respectively；
C) on multiple SCFDMA symbols that user equipment in TTI keeps at a certain distance away the subsection compression of transmission block.
It is another aspect of this invention to provide that a kind of equipment for transmission block being segmented and being mapped, including：
A) transmission block segmentation module, for transmission block being divided into multiple segmentations and being sorted；
B) coding, Rate Matching block, for being encoded to transmission block segmentation and the operation such as rate-matched；
C) physical resource mapping block, in order be each subsection compression physical resource.
It is another aspect of this invention to provide that the equipment of a kind of demapping and segmentation restructuring, including：
A) transmission block recombination module, for multiple piecewise combinations are obtained transmission block；
B) decoding, de-rate matcher block, for respectively to operations such as each segmentation solution rate-matched and decodings；
C) physical resource De-mapping module, goes out the signal of each segmentation for demapping.
It is another aspect of this invention to provide that a kind of transmission equipment that HARQ transmission is carried out to transmission block segmentation, including：
A) transmission block segmentation module, for transmission block being divided into multiple segmentations and being sorted；
B) coding module, for encoding to transmission block segmentation；
C) Rate Matching block, for the number of times according to HARQ transmission, carries out rate-matched to each segmentation；
D) physical resource mapping block, for the number of times according to HARQ transmission, is each subsection compression physical resource.
E) harq controller, for rate-matched and physical resource mapping of the control to segmentation.
It is another aspect of this invention to provide that a kind of receiving device that HARQ transmission is carried out to transmission block segmentation, including：
A) transmission block recombination module, for multiple piecewise combinations are obtained transmission block；
B) decoder module, for decoding to each segmentation respectively；
C) de-rate matcher block, for the number of times according to HARQ transmission, carries out solution rate-matched to each segmentation；
D) physical resource De-mapping module, for the number of times according to HARQ transmission, carries out physical resource demapping so as to obtain
The signal being segmented to each；
E) harq controller, for solution rate-matched and physical resource demapping of the control to segmentation.
It is another aspect of this invention to provide that a kind of up equipment for sending transmission block segmentation, including：
A) transmission block segmentation module, is segmented for transmission block；
B) coding, Rate Matching block, for being encoded to transmission block segmentation and the operation such as rate-matched；
C) physical resource mapping block, for for each subsection compression physical resource.
It is another aspect of this invention to provide that a kind of equipment of uplink receiving transmission block segmentation, including：
A) transmission block recombination module, obtains transmission block for combined section；
B) decoding, de-rate matcher block, for respectively to operations such as each segmentation solution rate-matched and decodings；
C) physical resource De-mapping module, goes out the signal of each segmentation for demapping.
Description of the drawings
Fig. 1 is the descending frame structure of LTE Class1；
Fig. 2 is the up frame structure of LTE Class1；
Downlink reference signal structure when Fig. 3 is general CP；
Uplink reference signals structure when Fig. 4 is general CP；
Fig. 5 is the equipment drawing for being segmented to transmission block and mapping；
Fig. 6 is the equipment drawing of demapping and segmentation restructuring；
Fig. 7 is the transmission equipment drawing that HARQ transmission is carried out to transmission block segmentation；
Fig. 8 is the receiving device figure that HARQ transmission is carried out to transmission block segmentation；
Fig. 9 is the up equipment drawing for sending transmission block segmentation；
Figure 10 is the equipment drawing of uplink receiving transmission block segmentation；
The schematic diagram that Figure 11 things transmission block is segmented and maps；
Figure 12 is signal Fig. 1 that HARQ transmission is carried out to transmission block segmentation；
Figure 13 is signal Fig. 2 that HARQ transmission is carried out to transmission block segmentation；
Figure 14 is signal Fig. 1 of up direction mapping transmission block segmentation；
Figure 15 is signal Fig. 2 of up direction mapping transmission block segmentation；
Figure 16 is the schematic diagram that up direction carries out HARQ transmission to transmission block segmentation.
Specific embodiment
When the bit number of transmission block is more than certain value Z, need to be segmented transmission block (segmentation), so as to
Respectively each segmentation is encoded.In LTE, Z is equal to 6144, and the mode of coding is encoded using Turbo.It is of the invention to retouch below
Various methods for being segmented to transmission block and transmitting are stated.
The method that transmission block is segmented and distributes physical resource：
When the bit number of transmission block is more than Z, transmission block is segmented, and remember segmentation that this transmission block is divided
Number is Nseg.Here it is possible to when being segmented to transmission block, it is ensured that the bit number of segmentation below more than or equal to above point
Section；Or after segmentation is finished, according to this NsegThe bit number of individual segmentation to each segmentation sequence, so as to ensure below point
The bit number of section is more than or equal to segmentation above.The bit number of note transmission block is B, and remembers that each segmentation is followed successively by Sk, its bit
Number isHere k=0,1 ..., Nseg- 1, i.e.,Here,Increase or constant with the increase of k.Note
Resource Unit (RE) sum of physical channel isIn LTE system, data channel is made up of multiple Resource Block, so
Equal to the summation of the RE numbers in each Resource Block.
The first determines that the method for the number of the RE that segmentation takes is physical channelIndividual RE uniformly distributes as far as possible
Each segmentation is given, also, the number of the RE of the fewer segment assignments of bit number is not more than the more segment assignments of bit number
RE numbers, this is conducive to the loss of the code rate (coding rate) for making up the more segmentations of bit number.K-th point
The RE numbers of section distribution are determined by equation below：When
When one segmentation is only mapped on a part of symbol in TTI, according to the order of the bit number monotonic nondecreasing being segmented to each point
Duan Jinhang physical resources map, specifically, on the symbol of the fewer subsection compression of bit number to the front portion of TTI, and bit
The more subsection compressions of number are on the symbol at the rear portion of segmentation.The order that for example can increase according to k maps segmentation S successivelyk。
This is because the precision of channel estimation of the symbol at TTI rear portions is of a relatively high, the decoding of the more segmentation of bit number is advantageously ensured that
Performance.
The method of number for determining the RE that segmentation takes for second is the bit number being segmented according to each, as much as possible by than
The pro rate physical resource of special number.So, the code rate approximately equal of each segmentation, so as to coding efficiency is approximate.
The third determines that the method for the number of the RE that segmentation takes is to encode later bit number according to what each was segmented, to the greatest extent
Possibly by the pro rate physical resource of coded bit number.Similar with second method, this method makes what each was segmented
Code rate approximately equal, so as to coding efficiency is approximate.
Because data channel adopts qam mode, the modulation symbol on each RE includes two branch roads of I and Q, so separately
A kind of method for each segment assignments physical resource is to define the branch road that least resource unit is modulation symbol, such thing
Reason channelIndividual RE is includedThe resource of individual unit.So said method can expand to handleIndividual unit
Resource allocation is to NsegIndividual segmentation.
It is to send equipment drawing as shown in Figure 5, transmission block segmentation module (501) and physical resource mapping block (503) are these
The embodiment of invention.First, module (501) is for being segmented to transmission block, and the bit number according to segmentation is segmented to each
Sequence, the bit number of segmentation below is more than or equal to segmentation above；Next, module (502) is carried out respectively to each segmentation
The operation such as coding (such as Turbo codings), rate-matched；Then, carry out physical resource in order to the bit that each is segmented to reflect
Penetrate (503), i.e. front portion of the few subsection compression of bit number to TTI, and the subsection compression more than bit number is to the rear portion of TTI.
It is receiving device figure as shown in Figure 6, physical resource De-mapping module (603) and transmission block restructuring (601) are these
Bright embodiment.It is according to the method for the present invention, each so as to obtain to demapping physical channels in physical resource De-mapping module (603)
The bit of individual segmentation；Next, carrying out respectively solving the operation such as rate-matched and decoding (602) to the bit that each is segmented；And
Transmission block restructuring (601) module is each piecewise combination into transmission block；Then judge whether transmission block sends successfully.
In up direction, when user equipment needs to send upstream data and upstream control signaling simultaneously, upstream data and
Upstream control signaling is transmitted on uplink data channels, so user equipment is when staged operation is carried out to transmission block, is needed
The impact considered by the resource that upstream control signaling takes.
Upstream control signaling can be divided into two types, and the first type is that base station and user equipment both sides firmly believe which is
The upstream control signaling of no transmission, for example periodically channel quality indicates (CQI), and periodic CQI signalings are by high level
, come what is configured, its reliability is very high for signaling, so base station and user equipment both know about the timing of CQI transmission and the resource for taking.
Second type is that probabilistic control signaling is there may exist between base station and user equipment, for example, respond descending HARQ numbers
According to the ACK/NACK of transmission, because user equipment is possible to error detection and carries out the downlink physical control channel of descending scheduling
(PDCCH), this includes：Base station to have sent and carry out the PDCCH of descending scheduling to user equipment and user equipment is not detected by, or
Person base station does not send the PDCCH for carrying out descending scheduling to user equipment and user equipment error detection is to carrying out descending scheduling
PDCCH；So, user equipment can not firmly believe whether which needs to send ACK/NACK control signalings completely.
The sum of RE of the uplink data channels of note base station assigned user equipment isThe upload control of the first type
The RE numbers that signaling takes are NC1, the RE numbers that the upstream control signaling of second type takes are NC2, and remember that transmission block is divided
Segmentation number be Nseg。
When up direction is segmented to transmission block, if being currently needed for transmitting the upload control letter of the first type
Order, other RE points beyond the RE that user equipment takes the upstream control signaling that the first type is removed in uplink data channels
Dispensing each segmentation.This is because the both sides of communication can reliably know whether the upstream control signaling of the first type needs
Transmission and its resource for taking, so the both sides of communication can reliably know that those RE in uplink data channels are for passing
Defeated upstream data.Here, in order to ensure each segmentation with approximately equalised chnnel coding performance, a kind of method is that user sets
Other RE beyond the standby RE taken by the upstream control signaling that the first type is removed in uplink data channels are as uniform as possible
Distribute to each segmentation.Specifically, according to method for expressing above to parameter, the RE numbers of k-th segment assignments are by under
The formula in face is determined：
The method that HARQ transmission is carried out to transmission block segmentation：
According to the discussion result in current LTE, in order that each segmentation that receiving terminal can be parallel to transmission block is solved
So as to accelerate the speed of reception processing, rate-matched is that each segmentation is carried out respectively for code operation, and is mapped in physical resource
When, each piecemeal is mapped to the resource in a TTI in the way of being similar to TDM, i.e., one segmentation is only mapped to inside TTI one
On partial symbols.In LTE, symbol here it is descending be OFDM symbol, it is up be SCFDMA symbols.So, recipient
Need not wait until that all symbols of whole TTI are received, after several symbols comprising a segmentation are received, it is possible to this
Individual segmentation is processed, and while receive TTI symbols below, so as to reach to each segmentation parallel processing purpose.
This method to multiple segmentation parallel processings, an important problem is the problem of channel estimation.In order to
Decoding process is carried out to segmentation as soon as possible, to some segmentations, recipient can not will be entered using all reference signals in whole TTI
Row channel estimation, so as to certain loss is brought in precision of channel estimation.Specifically, to uploading in TTI anterior symbol
Defeated segmentation, the reference signal at this TTI rear portion would be unavailable for channel estimation, and the number of available reference signal is less, so as to
The precision of channel estimation is relatively low；And the segmentation to transmitting on the symbol at TTI rear portions, all references inside this TTI
Signal may be used to channel estimation, and the number of available reference signal is more, so as to the precision of channel estimation is of a relatively high.According to
Analysis to precision of channel estimation, in a data transfer, in TTI each segmentation decoding performance be it is different, for example,
Positioned at TTI front portion symbol on segmentation decoding performance it is poor, and the decoding performance of the segmentation being located on the symbol of TTI rear portions compared with
It is good.
Even if in fact, not considering the difference to channel estimating performance caused by each segmentation parallel processing, each segmentation
The performance of channel estimation still suffer from difference, correspondingly, decoding performance of each segmentation can be variant.This is because different
Transmit on different symbols of the subsection compression in TTI, and the channel estimating performance of the different symbol in TTI is different.
This is all suitable for uplink and downlink transfer.
In up direction, when simultaneous transmission upstream data and upstream control signaling in uplink data channels is needed, on
The transmission of row control signaling may cause the decoding performance of each segmentation different.For example, upstream control signaling is believed in upstream data
The predefined transmitted over resources in road；And to upstream data, according to not sending uplink control signaling situation come for transmission block
Each segment assignments resource, but cannot be used for by the resource that upstream control signaling takes in the ascending resource of each segment assignments
Send the data of this segmentation, that is to say, that punching is carried out to the resource that each segmentation takes and obtains transmitting upstream control signaling
Resource.In addition, if consider the upstream control signaling (such as CQI) and second type of the first type of division above
The method of upstream control signaling (such as ACK/NACK), when the upstream data resource that segmentation takes is distributed, believes upstream data
Other resource allocations beyond the resource taken by the upstream control signaling of the first type in road are segmented to each；While each
Cannot be used for sending this segmentation by the resource that the upstream control signaling of second type takes in the ascending resource of segment assignments
Data, i.e., resource that each segmentation takes is carried out punching obtains transmitting the uplink control signaling resource of second type.
In above-mentioned punch operation, because position of each subsection compression in TTI is different, the number of resources that each segmentation is struck off
It is possibly different；Or, above-mentioned punch operation may be only occurred on partial segments；Situation above results in up side
It is different to the actual number of resources for taking of each segmentation, so as to decoding performance is different.
In down direction, the performance of channel estimation can be improved by power ascension is carried out to public reference signal.But
The maximum transmission power for being because base station is certain, and the power ascension of reference signal necessarily causes to can be used for transmit downlink data
Power reduce.At this moment, a kind of solution is under some or all of transmission in the OFDM symbol being located to reference signal
The RE of row data is punched, i.e., these RE are not used in transmission downlink data, and its transmit power is 0.So, in down direction,
If according to the OFDM symbol situation about being punched not being located to reference signal come for each segment assignments resource, when base station pair
The OFDM symbol that reference signal is located is when being punched, the number of resources that each segmentation is struck off be probably it is different, i.e., each
The actual number of resources for taking of segmentation is different, so as to decoding performance is different.
The number of the segmentation that one transmission block of note is divided is N, and remembers that each segmentation is followed successively by S1, S2... SN.It is being based on
During HARQ mechanism transmission data, when HARQ is retransmitted, each order of transmission of the segmentation in a TTI is converted, segmentation is made each
Decoding performance during secondary transmission is different, so as to after receiving terminal performs HARQ merging, it is ensured that the decoding performance of each segmentation is average
Change, carry out improving the probability of whole transmission block Successful transmissions.For example, in HARQ initial transmissions, send each according to certain order
Individual segmentation, in general, can be according to ascending order S1, S2... SNOrder send each segmentation, so, the S in current transmission1
Decoding performance compare SNDecoding performance it is poor；When first time HARQ is retransmitted, convert each segmentation order of transmission, for example according to
Descending SN, SN-1... S1Each segmentation is sent, so, the S in current re-transmission1Decoding performance compare SNDecoding performance it is good, from
And work as recipient this is transmitted twice and carry out after HARQ merging, it is segmented S1And SNDecoding performance reach unanimity, whole transmission block
Decoding performance is improved；In follow-up HARQ is retransmitted, can take and each segmentation be sent different from order above, it is also possible to weight
The second mining order of transmission that each is segmented with transmission above.
When the method for mapping segmentation is to map each segmentation successively from TTI starting positions, for example from the time, reflecting
Just start to map next segmentation after shooting away a segmentation, so, when HARQ re-transmissions are performed, convert each subsection compression and arrive
Order in TTI.When the method for mapping segmentation is that each of transmission block is divided into various groups, and from TTI starting positions according to
The segmentation of secondary each group of mapping, i.e., the segmentation in each group are multiplexed on the identical time location in TTI, so, are being performed
When HARQ is retransmitted, the group for converting each segmentation is mapped to the order in TTI.
The present invention does not limit each the specific ordering of segmentation when transmitting for the first time and retransmitting.With the redundancy version of HARQ
The definition of this (RV) is similar to, and system can predefine several possible subsection compressions to the order of TTI.So, in each HARQ
Using a kind of predefined segmentation order of transmission during data transfer.At this moment, during a certain data transfer, the actual segmentation for adopting is sent out
The instruction for sending order show by control signaling, is similarly to indicate currently employed HARQ RV by control signaling.Certain
What during one data transfer, the actual segmentation order of transmission for adopting can imply is indicated by other information：For example, employing point
Section order of transmission can be bound with HARQ RV；Or the segmentation order of transmission for adopting can be with currently to same number evidence
HARQ transmission number of times is bound.
Adopt in such a way, change the order of transmission of each segmentation when HARQ is retransmitted, correspondingly it needs to be determined that initial
The number (number of such as RE) of the physical resource that each segmentation takes when transmission and each HARQ are retransmitted.The first determines HARQ
During re-transmission, the method for the physical resource number of each segmentation is：The number of the physical resource of each segmentation occupancy is kept when retransmitting
It is constant.I.e. when transmitting first time, after calculating the physical resource number that a segmentation takes, in later re-transmission each time,
This segmentation all takes equal number of physical resource.The number of the physical resource of k-th segment assignments when note is transmitted for the first time
It isWhen then HARQ is retransmitted, the number of the physical resource of k-th segment assignments is remainedHere k=0,1 ..., Nseg-
1.When determining that HARQ is retransmitted second, the method for the number of the physical resource that each segmentation takes is：According to the thing that subsection compression is arrived
Position in reason channel determines the number of the physical resource of distribution.When transmitting first time, the physics money of k-th segment assignments is remembered
The number in source isAnd remember k-th subsection compression to physical resource position be k-th resource location, also just say physical channel
K-th resource location comprising number bePhysical resource, k=0 here, 1 ..., Nseg-1.Fix from physical channel
The corresponding relation of the physical resource number on resource location to this position.When HARQ is retransmitted, the mapping order of segmentation is carried out
Change, according to the new mappings order of segmentation, it is determined that the physical resource number that segmentation takes.I.e., it is assumed that one segmentation newly reflect
It is k-th to penetrate order, and its physical resource number for taking is
It is to send equipment drawing as shown in Figure 7, harq controller (700), rate matchers (703) and physical resource mapping mould
Block (705) is the embodiment of the present invention.Module (701) is for being segmented to transmission block；Module (702) is entered respectively to each segmentation
Row coding (such as Turbo codings)；Next, according to the method for the present invention, under the control of harq controller (700), to each
Individual segmentation carries out rate-matched (703) respectively, interleaved grade other process (704), carry out physical resource mapping (705)；Here
When HARQ is retransmitted, harq controller (700) controls the bit number of each segmentation rate-matched output, and changes in physical resource
The resource taken during mapping；Note the present invention do not limit HARQ whether rate-matched (703) and physical resource are mapped (705) it
Between other process (704) be controlled.
It is receiving device figure as shown in Figure 8, harq controller (700), de-rate matcher (703) and physical resource solution are reflected
Penetrate the embodiment that module (705) is the present invention.According to the method for the present invention, under the control of harq controller (700), receiver enters
Row physical resource demapping (805), is distinguished to each segmentation so as to obtain the signal of each segmentation Jing after other process (804)
Carry out solution rate-matched (803)；Here, when HARQ is retransmitted, harq controller (700) controls different physics of the receiver in TTI
In resource, demapping goes out the signal of segmentation, and control carries out solution rate-matched to which；Next, to solving the soft ratio after rate-matched
Spy carries out HARQ merging, and is decoded (802)；Finally, Jing transmission blocks recombinate (801) module each piecewise combination into transmission
Block；Then judge whether transmission block sends successfully.
Mapping method of the up direction to the segmentation of transmission block：
In up direction, in order to obtain more accurate channel estimating performance, base station has to receiving second time slot
In reference markss after, can just carry out channel estimation, then start to be soft demodulated and decoding operate each segmentation.According to
The symmetry of the sub-frame of uplink structure of LTE system, i.e. the position of data symbol and reference markss is symmetrical, so from letter
From the point of view of the performance that road is estimated, the channel estimating performance respectively with the second of the symbol (ascending order arrangement) in first time slot of TTI
Symbol (descending arrangement) correspondent equal in time slot.The method of the segmentation of mapping transmission block proposed by the present invention both can be used for
Row localized frequency division is multiplexed (LFDMA) channel, it is also possible to for up LFDMA+ frequency hoppings (hopping) channel.Especially to upper
Row LFDMA channels, it is on that the method for the present invention can be improved on the basis of parallel processing and channel estimating performance is not affected
The effect of the time diversity of row data transfer.
A kind of method that mapping is fragmented into physical layer is that each SCFDMA symbol in TTI is grouped, each segmentation
It is mapped on one group or multigroup SCFDMA symbols, it is hereby achieved that the effect of time diversity.The present invention is not limited per group
Whether the physical resource number of SCFDMA symbols is equal.Based on this mapping method, when the first mapping structure is first
Other symbols in gap in addition to reference markss are divided into one group of G1, while its in second time slot in addition to reference markss
His symbol is divided into one group of G2.Second mapping structure is that the symbol on the left of the reference markss in two time slots is divided into one group
G1, while the symbol on the right side of the reference markss in two time slots is divided into one group of G2.In LTE, the subframe to general CP, often
Group includes 6 SCFDMA symbols；Subframe to lengthening CP, per group includes 5 SCFDMA symbols.The base station of two kinds of mapping structures is simultaneously
It is the same, and the channel estimation of the symbol in each group of two kinds of mapping structures that row processes the performance of the data of user equipment
Performance be also it is suitable, but second mapping structure can improve the performance of data transfer using time diversity.The third
Mapping structure is that the SCFDMA symbols on the left of the reference markss in second time slot are divided into one group of G1, while during second
SCFDMA symbols on the right side of reference markss in gap are divided into one group of G2.In LTE, the subframe to general CP organizes G1Comprising 9
SCFDMA symbols, organize G2Comprising 3 SCFDMA symbols；Subframe to lengthening CP, organizes G1Comprising 8 SCFDMA symbols, G is organized2Comprising
2 SCFDMA symbols.It should be noted that to three of the above mapping structure, after being not intended to limit the rate-matched of a segmentation
Bit can only be in a group (G1Or G2) interior transmission, according to practical situation, the rate-matched that may have one or more to be segmented
Bit afterwards is simultaneously in two group (G1And G2) interior transmission.
When reference signal (CS-RS) of up channel measurement (Channel Sounding) is considered, in TTI
The some or all of resource of SCFDMA symbols may be distributed for transmitting CS-RS, so as to the money for transmitting upstream data in TTI
Reduce in source.At this moment a kind of processing method is the upstream data number of resources for transmitting the group at the SCFDMA symbols of CS-RS place
Reduce, and the upstream data number of resources of another group is constant.Another kind of processing method be still ensure that it is up in two groups
The number of data resource is equal.At this moment, the resource for having the SCFDMA symbols of a transmission upstream data is divided into two parts, and divides
Do not belong to different groups, so that the physical resource number in two groups is equal.Especially, this is divided into two parts and belongs to respectively
In the SCFDMA symbols of different groups it is and the symmetrical symbol of SCFDMA symbols for being used for CS-RS.For example, according to current LTE
Discussion result, a kind of method of transmission CS-RS is that CS-RS is transmitted on last SCFDMA symbol of TTI, with TTI's
Last symmetrical symbol of SCFDMA symbols is first SCFDMA symbol of TTI, it is possible to first
SCFDMA symbols are divided into two parts, and are belonging respectively to different groups.This is divided into two parts and is belonging respectively to different groups
SCFDMA symbols can also be last SCFDMA symbol of first time slot of TTI.The present invention does not limit this symbol
Particular location.
The method that another kind of mapping is fragmented into physical layer is that each is respectively mapped to keeping at a certain distance away for TTI
On two groups of SCFDMA symbols.For example, on a part of SCFDMA symbols of each time slot for being mapped to TTI.Specifically, first
It is respectively mapped to second of several symbols and TTI of first SCFDMA sign-on of first time slot of TTI
Several symbols of first SCFDMA sign-on of time slot；Second segmentation is segmented from first in each time slot respectively
The SCFDMA sign-ons mapping of end；The like, the SCFDMA sign-ons that each segmentation terminates from previous segmentation
Mapping.
It is to send equipment drawing as shown in Figure 9, physical resource mapping block (903) is the embodiment of the present invention.Module (901) is used
In being segmented to transmission block；Module (902) is encoded (such as Turbo codings), rate-matched etc. respectively to each segmentation
Operation；Next, according to the method for the present invention, carrying out physical resource mapping (903) to the bit that each is segmented.
It is receiving device figure as shown in Figure 10, physical resource De-mapping module (1003) is the embodiment of the present invention.According to this
The method of invention, physical resource De-mapping module (1003) to demapping physical channels so as to obtain each segmentation bit；
Next, carrying out respectively solving the operation such as rate-matched and decoding (1002) to the bit that each is segmented；And recombinate in transmission block
(1001) module each piecewise combination into transmission block；Then judge whether transmission block sends successfully.
Embodiment
This part gives six embodiments of the invention, in order to avoid making the description of this patent excessively tediously long, below
Explanation in, omit the detailed description to function known to the public or device etc..
First embodiment
A kind of method is segmented by transmission block of the present invention described in the present embodiment.Here score section bit number most
Big value is Z, and in LTE, Z is equal to 6144.
The bit number of note transmission block is B, is designated as b0, b1, b2..., bB-1, and B ＞ Z, so needing to carry out transmission block
Segmentation, and it is further assumed that the number for needing the filling bit of addition is Y.Transmission block segmentation total number beRoot
According to the discussion result in LTE, segmentation can have two kinds of sizes, be designated as K respectively+And K-, remember D=K+-K-, size is K-Segmentation
Number isSize is K+Segmentation number be C+=C-C-.Here, Y=C+·K++C-·K--B。
A kind of addition filling bit and the method being segmented are：Y filling bit is added to before transmission block；Then,
It is segmented according to vertical order, is first separated C+Individual size is K+Segmentation, then separate C-Individual size is K-Point
Section.Here first size is K+The front portion of segmentation be Y filling bit.Remember r (0≤r ＜ C+) bit of individual segmentation is
or0, or1, or2...,, K hererEqual to K+Or K-.So, the front portion of the 0th segmentation is Y filling bit, i.e. o0k
=0, k=0,1,2 ..., Y-1, the bit at its rear portion is o0k=bk-Y, k=Y, Y+1, Y+2 ..., K+-1；R (1≤r ＜
C+) bit of individual segmentation isK=0,1,2 ..., K+-1；R (C+≤ r ＜ C) bit of individual segmentation isK=0,1,2 ... K-1.
Another addition filling bit and the method being segmented are：According to vertical order, first transmission block is separated
C-Individual size is K-Segmentation；Then Y filling bit is added to before the remaining bits of transmission block, and is arrived according to the past
Order afterwards separates C+Individual size is K+Segmentation.So, r (0≤r ＜ C-) bit of individual segmentation isK=0,
1,2 ..., K-1；C-Individual segmentation front portion is Y filling bit, i.e.,K=0,1,2 ..., Y-1, the ratio at its rear portion
Spy isK=Y, Y+1, Y+2 ..., K+-1；R (C-＜ r ＜ C) bit of individual segmentation isK=0,1,2 ..., K+-1。
Second embodiment
The method that the present invention is segmented for transmission block and distributes physical resource described in the present embodiment.Here score a section bit number
Maximum be Z, in LTE, Z is equal to 6144, and the mode of coding is using Turbo codings.Rate-matched is eliminated in fig. 11
The operation arrived between physical resource mapping afterwards.
As shown in figure 11, the total number of bits of note transmission block is B, which is segmented in transmission block segmentation module.Here,
Note transmission block is divided into N number of segmentation, and remembers that the bit number of each segmentation is followed successively by Ki, i.e.,Here i=1,2 ..., N-
1, and assume that the bit number of two neighboring segmentation meets and Ki≤Ki+1.The total number resource of note physical channel is Ntot, according to this
The method of invention calculates the number of the physical resource of each subsection compression, i.e., the physical resource number of i-th segmentation isThen, respectively each segmentation is encoded, such as Turbo codings,
The corresponding output bit number of each segmentation is respectively 3Ki+12.Next, the number of the physical resource according to each subsection compression,
Rate-matched is carried out to the bit after coding, and remembers that output bit is once Si.It is simple in order to describe, speed is eliminated in Figure 11
To the operation between physical resource mapping after matching.Then, each is segmented according to the order for indexing from small to large from the beginning of TTI
Position carries out physical resource mapping.Specifically, little subsection compression is indexed to the front portion of TTI, and index big subsection compression
To the rear portion of TTI.
3rd embodiment
The method that the present invention carries out HARQ transmission to transmission block segmentation described in the present embodiment.Here with LTE Class1 systems
As a example by downlink transfer, and assume that base station configures 4 transmitting antennas.It is not general, it is assumed here that the first two of descending sub frame
OFDM symbol is used to transmit downlink physical control channel (PDCCH).Assume that transmission block is divided into two segmentations, be designated as being segmented #0 and divide
Section #1.The index of 14 OFDM symbols in note descending sub frame is from left to right #0～#13.
Figure 12 is the schematic diagram that base station maps transmission block segmentation in HARQ transmission.Segmentation when example one is initial transmission
Mapping graph, is segmented #0 and is mapped to the front portion of TTI, that is, be mapped on the RE beyond the public reference signal of OFDM symbol #2～#7；
Segmentation #1 is mapped to the rear portion of TTI, that is, be mapped on the RE beyond the public reference signal of OFDM symbol #8～#13.Example two
It is subsection compression figure when first time HARQ is retransmitted, is segmented the front portion that #1 is mapped to TTI, that is, is mapped to OFDM symbol #2～#7's
On RE beyond public reference signal；Segmentation #0 is mapped to the rear portion of TTI, that is, be mapped to the public ginseng of OFDM symbol #8～#13
Examine on the RE beyond signal.When HARQ number of retransmissions is more than 1, follow-up HARQ is retransmitted and can be reused example one or show
The mapping method of example two.
According to the method that the base station of Figure 12 sends downlink data, user equipment, is transmitted to initial transmission in receiving data
The decoding performance of block segmentation #1 is segmented #0 better than transmission block；When retransmitting first time, the decoding performance of transmission block segmentation #0 is better than
Transmission block is segmented #1.So as to user equipment is performed to the downlink data for transmitting twice after HARQ merging, the solution of the two segmentations
Code performance reaches unanimity, and this is conducive to the reception reliability for improving transmission block.
Fourth embodiment
The method that the present invention carries out HARQ transmission to transmission block segmentation described in the present embodiment.Here with LTE Class1 systems
As a example by downlink transfer, and assume that base station configures 4 transmitting antennas.It is not general, it is assumed here that the first two of descending sub frame
OFDM symbol is used to transmit downlink physical control channel (PDCCH).Assume that transmission block is divided into four segmentations, be designated as being segmented #0～#
3.When noting each time in Figure 13 transmission, order of each segmentation is schematic, and the present invention does not limit specific order of transmission.
Figure 13 is the schematic diagram that base station maps transmission block segmentation in HARQ transmission.Segmentation when example one is initial transmission
Mapping graph, four segmentations of transmission block are from segmentation #0 to segmentation #3 in the mapping order in TTI.When example two is once to retransmit
Subsection compression figure, four of transmission block segmentations are from segmentation #3 to segmentation #0 in the mapping order in TTI；Example three is second
Subsection compression figure during secondary re-transmission, four segmentations of transmission block are (#2, #0, #3, #1) in the mapping order in TTI；Work as HARQ
When number of retransmissions is more than 2, follow-up HARQ is retransmitted and can be used new mapping order, it is also possible to reuse example one, example
Two or the mapping method of example two.
According to the method that the base station of Figure 13 sends downlink data, user equipment receives downlink data, because common reference letter
Number position distribution, the decoding performance of each segmentation all difference when transmitting every time, so as to user equipment is to being transmitted several times
After downlink data performs HARQ merging, decoding performance of each segmentation reaches unanimity, and this is conducive to the reception for improving transmission block
Reliability.
5th embodiment
The mapping method that the present invention is segmented to transmission block in up direction described in the present embodiment.By taking LTE Class1 as an example,
To general CP subframe structures, the index of each SCFDMA symbol is #0～#13；And to lengthening CP subframe structures, each SCFDMA
The index of symbol is #0～#11.This method is described by taking up LFDMA channels as an example below.As shown in figure 14, it is assumed here that up
Physical resource in TTI is divided into two groups to map transmission block segmentation.
Example one is the mapping structure of general CP subframes, on the left of the reference markss (#3 and #10) in two time slots
SCFDMA symbols (#0～#2, #7～#9) are divided into one group of G1；On the right side of reference markss (#3 and #10) in two time slots
SCFDMA symbols (#4～#6, #11～#13) are divided into one group of G2.Here, organize G1With a group G2It is respectively used to transmit a part of segmentation,
And a multiple segmentations are there may be while transmitting in two groups.For example, when the number of transmission block segmentation is odd number, can
To have a segmentation to need while transmitting in two groups.
Example two be lengthen CP subframes mapping structure, reference markss (#2 and # two time slots in similar with example one
9) the SCFDMA symbols (#0～#1, #6～#8) on the left of are divided into one group of G1；Reference markss (#2 and #9) in two time slots are right
The SCFDMA symbols (#3～#5, #10～#11) of side are divided into one group of G2.Here, organize G1With a group G2It is respectively used to a transmission part
Segmentation, and a multiple segmentations are there may be while transmitting in two groups.For example, when the number of transmission block segmentation is odd number
When, there can be a segmentation to need while transmitting in two groups.
When a SCFDMA symbol of sub-frame of uplink is used to transmit CS-RS, it is assumed here that last SCFDMA symbol
For transmitting.Example three is the mapping structure to general CP subframes, when the data symbol to TTI is grouped, it is assumed here that allow
Two group (G1And G2) in uplink symbol number it is different.Six on the left of reference markss (#3 and #10) in two time slots
SCFDMA symbols (#0～#2, #7～#9) are divided into one group of G1；On the right side of reference markss (#3 and #10) in two time slots
SCFDMA symbols (#4～#6, #11～#12) are divided into one group of G2.Here organize G2Than a group G1A SCFDMA symbol (#13) is lacked.
Group G1With a group G2Be respectively used to transmit a part of segmentation, and a multiple segmentations are there may be while transmitting in two groups.
When a SCFDMA symbol of sub-frame of uplink is used to transmit CS-RS, it is assumed here that last SCFDMA symbol
For transmitting.When the data symbol to TTI is grouped, two group (G are made1And G2) interior ascending resource number it is equal, example four is
Mapping structure to general CP subframes.The half resource of SCFDMA symbols (#0) and 4 complete S CFDMA symbols (#1, #6～#8)
Resource be divided into one group of G1；Second half resource of SCFDMA symbols (#0) and 4 complete S CFDMA symbols (#3～#5, #10)
Resource be divided into one group of G2, two such group (G1And G2) interior ascending resource number it is equal.Group G1With a group G2It is respectively used to pass
Defeated part segmentation, and a multiple segmentations are there may be while transmitting in two groups.
Sixth embodiment
The mapping method that the present invention is segmented to transmission block in up direction described in the present embodiment.Here with LTE Class1 it is
As a example by the general CP subframe structures of example, the index of each SCFDMA symbol is #0～#13.By taking up LFDMA channels as an example, such as scheme
Shown in 15, it is assumed here that each is respectively mapped on keep at a certain distance away two groups of SCFDMA symbols of TTI.It is not general
Property, it is assumed here that transmission block is divided into 3 segmentations.
In example one, first subsection compression to SCFDMA symbols (#0, #1, #7 and #8), second subsection compression are arrived
SCFDMA symbols (#2, #3, #9 and #10), the 3rd subsection compression to SCFDMA symbols (#4, #5, #11 and #12).Here each
Segmentation is mapped to be spaced on two groups of SCFDMA symbols of 5 symbols, so having preferable time diversity effect.
In example two, it is assumed that last SCFDMA symbol (#13) of TTI is for transmitting CS-RS, rather than transmission
Upstream data, the sum for so transmitting the SCFDMA symbols of upstream data is 11.The ascending resource number of each segment assignments
More than 3 symbols, but it is less than 4 symbols.First subsection compression to SCFDMA symbols (#0, #1, #6～#8) part or
In person's whole resource, second subsection compression to SCFDMA symbols (#1, #2, #4, #8, #9 and #11), the 3rd subsection compression are arrived
SCFDMA symbols (#4～#6, #11 and #12).Here each is respectively mapped to two groups of SCFDMA for being spaced several symbols
On symbol, so having preferable time diversity effect.
7th embodiment
The method that the present invention carries out HARQ transmission to transmission block segmentation in up direction described in the present embodiment, it is assumed here that
User equipment sends upstream data and upstream control signaling simultaneously in uplink data channels.Notice that Figure 16 is logic diagram, i.e.,
When being multiplexed multiple segmentations or being multiplexed segmentation and upstream control signaling in a SCFDMA symbol, Figure 16 is only represented these
Information multiplexing is to together, and does not limit specific multiplexing method.It is assumed here that transmission block is divided into four segmentations, it is designated as being segmented #0
～#3, transmits on two time slots of each subsection compression in TTI.In figure 16, it is assumed that up with reference to letter in each time slot
A part of resource of the SCFDMA symbols of number both sides is used to transmit upstream control signaling.Note during each transmission in Figure 16 each
The order of segmentation is schematic, and the present invention does not limit specific order of transmission.
Figure 16 is the schematic diagram of user equipment mapping transmission block segmentation in up direction HARQ transmission.Example one is just
The subsection compression figure begun when transmitting, four segmentations of transmission block are from segmentation #0 to segmentation #3 in the mapping order in TTI.This
In, a part of resource for being segmented #1 and segmentation #2 is perforated for transmitting upstream control signaling, and being segmented #0 and segmentation #3 does not have
It is perforated, so in current transmission, the decoding performance for being segmented #0 and segmentation #3 is better than segmentation #1 with segmentation #2.Example two is one
Subsection compression figure during secondary re-transmission, four segmentations of transmission block are (#2, #3, #0, #1) in the mapping order in TTI.Here, divide
A part of resource of section #0 and segmentation #3 is perforated for transmitting upstream control signaling, and segmentation #1 and segmentation #2 are not beaten
Hole, so in current transmission, the decoding performance for being segmented #1 and segmentation #2 is better than segmentation #0 with segmentation #3.When HARQ number of retransmissions
During more than 1, follow-up HARQ is retransmitted and can be used new mapping order, it is also possible to reuse two mapping of example one or example
Method.
According to the method that the user equipment of Figure 16 sends upstream data, base station receives upstream data, because the up control of transmission
The impact of signaling processed, the decoding performance of each segmentation all difference when transmitting every time, but base station is up to what is be transmitted several times
After data perform HARQ merging, decoding performance of each segmentation reaches unanimity, and this is conducive to the reception reliability for improving transmission block
Property.
It should be noted that the schematic diagram of Figure 16 is equally applicable to the upstream control signaling of the first type of differentiation (for example
The method of the upstream control signaling (such as ACK/NACK) of CQI) and second type.At this moment, in uplink data channels by
Other resources beyond the resource that a type of upstream control signaling takes uniformly distribute to each segmentation as far as possible.Together
Sample, subsection compression figure when example one is initial transmission, four segmentations of transmission block are from segmentation #0 in the mapping order in TTI
To segmentation #3.Here, a part of resource for being segmented #1 and segmentation #2 is perforated for transmitting the upload control letter of second type
Order, and be segmented #0 and segmentation #3 is not perforated, transmits so current, and the decoding performance for being segmented #0 and segmentation #3 is better than point
Section #1 and segmentation #2.Subsection compression figure when example two is once re-transmission, four mapping order being segmented in TTI of transmission block
It is (#2, #3, #0, #1).Here, a part of resource for being segmented #0 and segmentation #3 is perforated for transmitting the up of second type
Control signaling, and be segmented #1 and segmentation #2 and be not perforated, so in current transmission, the decoding performance for being segmented #1 and segmentation #2 will
Better than segmentation #0 and segmentation #3.When HARQ number of retransmissions is more than 1, follow-up HARQ is retransmitted and can be used new mapping order,
Two mapping method of example one or example can also be reused.
According to the method that the user equipment of Figure 16 sends upstream data, base station receives upstream data, because transmitting second
The uplink control signaling of type affects, the decoding performance of each segmentation all difference when transmitting every time, but base station is to more
After the upstream data of secondary transmission performs HARQ merging, decoding performance of each segmentation reaches unanimity, and this is conducive to improving transmission
The reception reliability of block.
Claims (7)
1. a kind of method of transmission block segmentation and distribution physical resource, including step：
A) transmission block is segmented and is sorted by bit number；
B) number of its physical resource for taking is determined according to the bit number of segmentation；
C) transmission block is encoded and rate adaptation operating；
D) physical resource mapping is carried out to each segmentation by the order of the bit number monotonic nondecreasing of segmentation；
Wherein, in step b), the number of the Resource Unit RE of the fewer segment assignments of bit number is not more than bit number and compares
The RE numbers of many segment assignments.
2. method according to claim 1, wherein in step b), the RE numbers of k-th segment assignments are by following public affairs
Formula is determined：
WhereinRepresent the RE numbers of k-th segment assignments, NsegThe number of the segmentation divided by transmission block is represented,Represent
The sum of the Resource Unit RE of physical channel.
3. method according to claim 1, it is characterised in that in step b), except Class1 upstream control signaling takes
Other RE beyond RE distribute to transmitting uplink data.
4. method according to claim 3, it is characterised in that the RE numbers of k-th segment assignments are determined by equation below
It is fixed：
WhereinRepresent the RE numbers of k-th segment assignments, NsegThe number of the segmentation divided by transmission block is represented,Represent
The sum of the Resource Unit RE of physical channel, NC1The RE numbers that the upstream control signaling of statement Class1 takes.
5. method according to claim 3, it is characterised in that Class1 control signaling includes that channel quality indicates (CQI).
6. it is a kind of to transmission block be segmented and map equipment, including：
A) transmission block segmentation module, for transmission block being divided into multiple segmentations and being sorted by bit number；
B) coding, Rate Matching block, for being encoded and rate adaptation operating to transmission block segmentation, wherein, bit number ratio
The number of the Resource Unit RE of less segment assignments is not more than the RE numbers of the more segment assignments of bit number；
C) physical resource mapping block, for carrying out physical resource to each segmentation by the order of the bit number monotonic nondecreasing of segmentation
Mapping.
7. a kind of demapping and to transmission block be segmented restructuring equipment, including：
A) transmission block recombination module, for sorting and combining the segmentation of transmission block and by bit number；
B) decoding, de-rate matcher block, for carrying out solving rate-matched and decoding operate to transmission block segmentation, wherein, bit
The number of the Resource Unit RE of the fewer segment assignments of number is not more than the RE numbers of the more segment assignments of bit number；
C) physical resource De-mapping module, for carrying out physics money to each segmentation by the order of the bit number monotonic nondecreasing of segmentation
Source demapping.
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| CN1879341A (en) * | 2003-11-10 | 2006-12-13 | Lg电子株式会社 | Signal processing apparatus and method using multi-output mobile communication system |
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