CN102970709B - It is a kind of configuration fragment carrier wave after RBG sizes and number determination method and apparatus - Google Patents
It is a kind of configuration fragment carrier wave after RBG sizes and number determination method and apparatus Download PDFInfo
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- CN102970709B CN102970709B CN201110258014.XA CN201110258014A CN102970709B CN 102970709 B CN102970709 B CN 102970709B CN 201110258014 A CN201110258014 A CN 201110258014A CN 102970709 B CN102970709 B CN 102970709B
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Abstract
The invention discloses a kind of determination methods of RBG sizes and number after configuration fragment carrier wave, including：Enhancing base station (eNB) is after terminal (UE) configures fragment carrier wave, and eNB and UE determine that resource block group (RBG) size the sum of is equal to fragment carrier wave and matches the bandwidth of backward compatibility carrier wave used with it corresponding RBG sizes；According to determining RBG sizes, the RB of the RB of backward compatibility carrier wave and fragment carrier wave are considered as an entirety or two parts carry out the division of RBG, to after division the RBG of the backward compatibility carrier wave and the RBG of fragment carrier wave be numbered.The invention also discloses the determining devices of RBG sizes and number after a kind of configuration fragment carrier wave, by the invention it is possible to solve after being configured with fragment carrier wave, resource allocation confusion problem caused by the RBG size disunities of different editions UE.
Description
Technical field
The present invention relates to field of mobile wireless communication, resource block group (RBG) is big after particularly relating to a kind of configuration fragment carrier wave
Small and number determination method and apparatus.
Background technology
Development with Mobile Communication Industry and the continuous growth to mobile data services demand, people are to mobile logical
The requirement of the rate and service quality (Qos) of letter is higher and higher, and then in 3G (Third Generation) Moblie (3G), there are no extensive quotient
With before, the research-and-development activity to next generation mobile communication system is just had begun, wherein comparing typically third
For long term evolution (LTE) project that partner program (3GPP) starts, the available highest carrier bandwidths of LTE system are
20MHz (megahertz).
With the further evolution of network, evolution systems of the evolution LTE (LTE-A) as LTE can provide up to
The carrier bandwidths of 100MHz support more flexible higher-quality communication, while LTE system has good backwards compatibility.
There are multiple component carriers (CC, Component Carrier) in lte-a system, after a LTE terminal can only operate in some
To on compatible CC, and the stronger LTE-A terminals of ability can be transmitted on multiple CC simultaneously.
It is continuous by 12 of a subframe of time domain and frequency domain when being divided into 15kHz between up-link carrier in LTE system
Or discrete subcarrier is as a resource block (RB, Resource Block).Whether RB is continuously divided into physics according to frequency
Resource block (PRB) and virtual resource blocks (VRB) two types are the least resource units of uplink and downlink scheduling.
Enhance base station (eNB, enhanced Node B) carry out scheduling of resource when, by Downlink Control Information (DCI,
Downlink Control Information) scheduling of resource situation is transferred to user equipment (UE, User Equipment).
The physical channel of transmission DCI is known as Physical Downlink Control Channel (PDCCH, Physical Downlink Control
CHannel).UE explains the content of resource allocation field by the DCI types of PDCCH.According to the difference of DCI types, to money
The instruction in source is also different.In each PDCCH, resource allocation field consists of two parts：Resource allocation head and resource block distribution letter
Breath.Resource allocation includes three types：Type 0, Class1 and type 2.Type 0 and Class1 use the bit number of identical quantity,
When being transmitted by DCI Class1,2,2A, 2B, 2C, the two possesses identical format, at this point, being compared by resource allocation head 1
Spy distinguishes, and 0 indicates that type 0,1 indicates Class1.And DCI format 1A, 1B, 1C, 1D are then used for type 2 and transmit.Resource allocation class
Type 0,1 indicates that resource, resource allocation type 2 indicate distributed resource using VRB using PRB.
When eNB carries out scheduling of resource, there are following several situations：
1, DCI by Class1,2,2A, 2B, 2C transmit, and resource allocation head bit value be 0 when：In resource allocation type 0
In, resource block assignment information includes a set of resources coordination contour, which indicates that eNB distributes to the resource block group of particular UE
(RBG, Resource Block Group) information.The size P of RBG depends on carrier bandwidths, and correspondence is as shown in table 1：
Table 1
The number of RBG is determined jointly by carrier bandwidths and RBG sizes：Wherein include
RBG and size that a size is P beRBG.RBG is numbered from low frequency.RBG is numbered
From 0 to NRBG- 1 is respectively mapped on most significant bit to least significant bit.
2, DCI by Class1,2,2A, 2B, 2C transmit, and resource allocation head bit value be 1 when：In resource allocation type 1
In, resource block assignment information indicates the RB of distribution for the UE of a scheduled in the subset range that RBG gathers.The program is pressed
PRB is grouped according to table 1, P PRB is contained in each RBG, these PRB are numbered from 0 to P-1.Choose one section continuously
The PRB that number is p (0≤p≤P-1) in RBG forms RBG subsets.ENB carries out resource allocation in the subset range to UE.
In Class1, resource block assignment information is divided into 3 fields：
First character section usesPositions of the RB in RBG selected by a bit labeling；
Whether second field uses offset using 1 bit labeling；
Third field includes a bitmap, and each bit of the bitmap is used to indicate one in selected RBG subsets
PRB。
RB is mapped to since most significant bit on bitmap according to the growth of frequency.The size of the bitmap is defined as：
Since the size of this method Bitmap is less thanTherefore bitmap can not cover all RBG, in RBG
When being numbered, need into line displacement.In the resource block assignment information of the type, whether second field mark uses offset,
When the field is 0, Δshift(p)=0 offset is not used.At this point, the number of RB is since low-limit frequency, it is incremented by successively from zero；It should
When field is 1, offset will be introduced in RB numbers, offset value isWhereinIndicate the RB quantity in the RBG subsets (mark is the RBG subsets of p) for the RB compositions that number is p.It can be obtained by following formula：
It at the ends UE, is decoded by PDCCH, UE obtains the value of i-th of bit in bitmap, according to RBG subset marks p, RB
Repositioning completed by following formula：
3, DCI is transmitted by Class1 A, 1B, 1C, 1D, when using resource allocation type 2：Resource allocation type 0,1 is to adopt
Indicate that resource, resource allocation type 2 exactly indicate distributed resource using VRB with PRB.It is exactly using the benefit of VRB
Continuous dispensing may be used when scheduling of resource, VRB is then assigned to by PRB by local or distributed mode again, simultaneously
Also save the expense of signaling bit.
From table 1 it follows that the size of carrier bandwidths determines the size of RBG, and then determine resource allocation in DCI
The whole bit length of the number and DCI of bit number.
Fragment carrier wave (Carrier Segment) is a kind of carrier wave of incompatibility, and fragment carrier wave cannot be independently operated, only
It can be used as a part for the bandwidth of a certain backward compatibility carrier wave, to increase the transmittability of backward compatibility carrier wave.Fragment carries
The sum of wave and the bandwidth of backward compatibility carrier wave of pairing be no more than 110RBs (Carrier segments, If specified,
are defined as the bandwidth extensions of a backwards compatible component
carrier(no larger than 110RBs in total)and constitute a mechanism to utilize
frequency resources in case new transmission bandwidths are needed in a
backwards compatible way complementing carrier aggregation means)。
When being configured with fragment carrier wave, it is contemplated that its characteristic：After still being indicated with a PDCCH after increase fragment carrier wave
To the resource of compatible carrier wave and fragment carrier wave entirety.The addition of fragment carrier wave can bring the increase of PRB (also referred to as RB) sum, then
The case where for fragment carrier wave is assigned with for UE, faces increased PRB, and how RBG sizes determine, and introduces fragment carrier wave
How RBG numbers afterwards carry out, and could be so that the flexibility of base station is improved, and does not influence original backward compatibility carrier wave
And the normal work of the UE of legacy version, it is a urgent problem to be solved.
Invention content
In view of this, the main purpose of the present invention is to provide RBG sizes after a kind of configuration fragment carrier wave and numbering really
Determine method and apparatus, to solve after being configured with fragment carrier wave, resource allocation caused by the RBG size disunities of different editions UE is mixed
Random problem.
To achieve the goals above, the technical proposal of the invention is realized in this way：
The present invention provides a kind of determination method of RBG sizes and number after configuration fragment carrier wave, this method includes：
It is after terminal (UE) configures fragment carrier wave to enhance base station (eNB), and the eNB and UE determine that resource block group (RBG) is big
It is small to be equal to the fragment carrier wave and corresponding RBG sizes of the sum of the bandwidth of backward compatibility carrier wave used being matched with it；
According to determining RBG sizes, by the RB of the RB of the backward compatibility carrier wave and the fragment carrier wave be considered as one it is whole
Body or two parts carry out the division of RBG, the RBG of RBG and the fragment carrier wave to the backward compatibility carrier wave after division into
Row number.
The fragment carrier wave and the sum of the bandwidth of backward compatibility carrier wave used is matched with it corresponding RBG sizes are：
When the sum of described bandwidth is less than or equal to 10, corresponding RBG sizes are 1；
When the sum of described bandwidth is more than or equal to 11 and is less than or equal to 26, corresponding RBG sizes are 2；
When the sum of described bandwidth is more than or equal to 27 and is less than or equal to 63, corresponding RBG sizes are 3；
When the sum of described bandwidth is more than or equal to 64 and is less than or equal to 110, corresponding RBG sizes are 4.
The RB of the RB of the backward compatibility carrier wave and the fragment carrier wave are considered as the division that an entirety carries out RBG, are：
The RB of the RB of the backward compatibility carrier wave and the fragment carrier wave are considered as an entirety, it is big according to determining RBG
The small division for carrying out RBG only includes the RB of the backward compatibility carrier wave in each RBG after division or only includes the fragment
The RB of carrier wave or the simultaneously RB of RB and the fragment carrier wave comprising the backward compatibility carrier wave.
When carrying out the division of RBG, this method further includes：
When the integer for the RBG sizes that the sum of the RB of the RB and fragment carrier wave of the backward compatibility carrier wave is not to determine
Times when, allow the RB quantity for including in one of RBG to be less than determining RBG sizes.
The RB of the RB of the backward compatibility carrier wave and the fragment carrier wave are considered as the division that two parts carry out RBG, are：
The RB of the RB of the backward compatibility carrier wave and the fragment carrier wave are considered as two parts, respectively according to determining RBG
Size carries out the division of RBG, and the RB of the backward compatibility carrier wave is only included in each RBG after division, or only includes described point
The RB of piece carrier wave.
When carrying out the division of RBG, this method further includes：
As the RBG that the quantity of the RB of the quantity and/or fragment carrier wave of the RB of the backward compatibility carrier wave is not to determine
When the integral multiple of size, include in one of permission backward compatibility carrier wave one of RBG and/or fragment carrier wave RBG
RB quantity be less than RBG sizes.
The RBG of RBG and the fragment carrier wave to the backward compatibility carrier wave after division be numbered for：
The RBG of the backward compatibility carrier wave is numbered since 0, and is numbered from the RBG of the backward compatibility carrier wave
Maximum value rise, according to sequence of the frequency range of the fragment carrier wave from low to high or from high frequency to low frequency, successively to described
The RBG of fragment carrier wave is numbered.
The RBG of RBG and the fragment carrier wave to the backward compatibility carrier wave after division be numbered for：
The RBG of the backward compatibility carrier wave is numbered since 0, and since 0, according to the frequency of the fragment carrier wave
Sequence of the section from low to high or from high frequency to low frequency, is successively numbered the RBG of the fragment carrier wave.
The present invention also provides the determining devices of RBG sizes and number after a kind of configuration fragment carrier wave, including：RBG is determined
Unit, RBG division units and RBG numbered cells；Wherein：
The RBG determination units, for after configure fragment carrier wave, determine RBG sizes equal to the fragment carrier wave and with
It matches the corresponding RBG sizes of the sum of the bandwidth of backward compatibility carrier wave used；
The RBG division units are used for according to determining RBG sizes, by the RB of the backward compatibility carrier wave and described point
The RB of piece carrier wave is considered as an entirety or two parts carry out the division of RBG；
The RBG numbered cells, for the RBG of the backward compatibility carrier wave after division and the fragment carrier wave
RBG is numbered.
The RBG determination units are further used for, when the sum of described bandwidth is less than or equal to 10, determining that corresponding RBG is big
Small is 1；When the sum of described bandwidth is more than or equal to 11 and is less than or equal to 26, determine that corresponding RBG sizes are 2；When the bandwidth
The sum of be more than or equal to 27 and less than or equal to 63 when, determine corresponding RBG sizes be 3；When the sum of described bandwidth be more than or equal to 64,
And when less than or equal to 110, determine that corresponding RBG sizes are 4.
The RBG division units are further used for regarding the RB of the RB of the backward compatibility carrier wave and the fragment carrier wave
For an entirety, the division of RBG is carried out according to determining RBG sizes, only includes the backward compatibility in each RBG after division
The RB of carrier wave or the only RB comprising the fragment carrier wave include that the RB of the backward compatibility carrier wave and the fragment carry simultaneously
The RB of wave.
The RBG division units are further used for regarding the RB of the RB of the backward compatibility carrier wave and the fragment carrier wave
For two parts, the division of RBG is carried out according to determining RBG sizes respectively, only includes described backward simultaneous in each RBG after division
Hold the RB of carrier wave, or only includes the RB of the fragment carrier wave.
The RBG numbered cells are further used for that the RBG of the backward compatibility carrier wave is numbered since 0, and from
The maximum value of the RBG numbers of the backward compatibility carrier wave rises, according to the frequency range of the fragment carrier wave from low to high or from height
Frequency arrives the sequence of low frequency, and the RBG of the fragment carrier wave is numbered successively.
The RBG numbered cells are further used for that the RBG of the backward compatibility carrier wave is numbered since 0, and from
0 starts, and according to sequence of the frequency range of the fragment carrier wave from low to high or from high frequency to low frequency, is carried successively to the fragment
The RBG of wave is numbered.
The determination method and device of RBG sizes and number after configuration fragment carrier wave provided by the invention, eNB are new version UE
After configuring fragment carrier wave, RBG size fragment carrier waves and the corresponding RBG of the sum of the bandwidth of backward compatibility carrier wave used is matched with it
Size；According to determining RBG sizes, by the RB of the RB of backward compatibility carrier wave and fragment carrier wave be considered as an entirety or two parts into
The RBG of the division of row RBG, RBG and fragment carrier wave to the backward compatibility carrier wave after division is numbered.The above-mentioned side of the present invention
Case realizes for no distribution using the UE (UE for including the UE of legacy version and new version) of fragment carrier wave and uses band with UE
Wide flexible in size determines RBG sizes, ensures it in the work of backward compatibility carrier wave and the scheduling rule of base station not by any
It influences；For distribute using fragment carrier wave UE, can also realize flexibly determined according to the amount of bandwidth of fragment carrier wave it is suitable
The RBG sizes of oneself are closed, to which base station can also be directed to the bandwidth situation that UE is used and flexibly determine that the RBG of this scheduling of UE is big
Small and number, increases the flexibility of base station scheduling.
Description of the drawings
Fig. 1 is the determination method flow schematic diagram of RBG sizes and number after present invention configuration fragment carrier wave；
Fig. 2 is the determination schematic diagram that the embodiment of the present invention one configures RBG sizes and number after fragment carrier wave；
Fig. 3 is the determination schematic diagram that the embodiment of the present invention two configures RBG sizes and number after fragment carrier wave；
Fig. 4 is the determination schematic diagram that the embodiment of the present invention three configures RBG sizes and number after fragment carrier wave；
Fig. 5 is the determination schematic diagram one that the embodiment of the present invention four configures RBG sizes and number after fragment carrier wave；
Fig. 6 is the determination schematic diagram two that the embodiment of the present invention four configures RBG sizes and number after fragment carrier wave；
Fig. 7 present invention configures the determination apparatus structure schematic diagram of RBG sizes and number after fragment carrier wave.
Specific implementation mode
The determination method of RBG sizes and number after a kind of configuration fragment carrier wave provided by the invention, as shown in Figure 1, including：
Step 101, eNB is after UE configures fragment carrier wave, and eNB and UE determine that RBG sizes are equal to fragment carrier wave and match with it
The corresponding RBG sizes of the sum of bandwidth to the backward compatibility carrier wave used.
The corresponding determination of RBG sizes Main Basiss table 1 of the sum of bandwidth, i.e.,：
When the sum of bandwidth is less than or equal to 10, corresponding RBG sizes are 1；
When the sum of bandwidth is more than or equal to 11 and is less than or equal to 26, corresponding RBG sizes are 2；
When the sum of bandwidth is more than or equal to 27 and is less than or equal to 63, corresponding RBG sizes are 3；
When the sum of bandwidth is more than or equal to 64 and is less than or equal to 110, corresponding RBG sizes are 4.
Step 102, according to determining RBG sizes, by the RB of the RB of backward compatibility carrier wave and fragment carrier wave be considered as one it is whole
Body or two parts carry out the division of RBG, and the RBG of RBG and fragment carrier wave to the backward compatibility carrier wave after division are numbered.
Wherein, when the RB for the backward compatibility carrier wave for including to carrier bandwidths and the RB of fragment carrier wave carry out RBG divisions, it is divided into
Two kinds of situations：
One, the RB of the RB of backward compatibility carrier wave and fragment carrier wave are considered as the division that an entirety carries out RBG, specially：
The RB of the RB of backward compatibility carrier wave and fragment carrier wave are considered as an entirety, RBG is carried out according to determining RBG sizes
Division, only include the RB of backward compatibility carrier wave in each RBG after division or only include the RB of fragment carrier wave or wrap simultaneously
The RB of the RB and fragment carrier wave of the carrier wave containing backward compatibility.
For this dividing mode, there is a situation where as follows：When the RB and fragment carrier wave of backward compatibility carrier wave RB it is total
When the integral multiple for the RBG sizes that number is not to determine, the RB quantity for including in one of RBG is allowed to be less than determining RBG sizes.
Two, the RB of the RB of backward compatibility carrier wave and fragment carrier wave are considered as the division that two parts carry out RBG, specially：
The RB of the RB of backward compatibility carrier wave and fragment carrier wave are considered as two parts, carried out respectively according to determining RBG sizes
The division of RBG only includes the RB of backward compatibility carrier wave in each RBG after division, or only includes the RB of fragment carrier wave.
For this dividing mode, there is a situation where as follows：When the quantity and/or fragment carrier wave of the RB of backward compatibility carrier wave
RB the RBG sizes that are not to determine of quantity integral multiple when, allow one of backward compatibility carrier wave RBG and/or fragment
The RB quantity for including in one of carrier wave RBG is less than RBG sizes.
When carrying out RBG numbers,
Following RBG numberings can be used for the first dividing mode and second of dividing mode：Since 0
The RBG of backward compatibility carrier wave is numbered, and from the maximum value that the RBG of backward compatibility carrier wave is numbered, according to fragment carrier wave
Sequence of the frequency range from low to high or from high frequency to low frequency, (such as subsequent implementation is numbered to the RBG of fragment carrier wave successively
Example one, embodiment two, example IV).
For second of dividing mode, following RBG numberings can also be used：To backward compatibility carrier wave since 0
RBG be numbered, and since 0, according to sequence of the frequency range of fragment carrier wave from low to high or from high frequency to low frequency, according to
The secondary RBG to fragment carrier wave is numbered (such as subsequent embodiment three).
Illustrate technical scheme of the present invention below by specific embodiment.
In a specific embodiment of the present invention, mainly consider backward compatibility carrier wave and the polymerization of fragment carrier wave in lte-a system
The scene used.Assuming that being configured with two component carriers, polymerizable use in lte-a system.Wherein, UE can be new version
UE can also be legacy version UE.
Embodiment one
In the present embodiment, new version UE polymerizations use the backward compatibility carrier wave of a 5MHz (including 25 RB) and one
The fragment carrier wave of 1.4MHz (including 6 RB).
One, the determination of RBG sizes：
As shown in Fig. 2, UE 1 only only used the backward compatibility carrier wave of 5MHz, determine that the corresponding RBG sizes of UE1 are：eNB
It using carrier bandwidths new after the backward compatibility carrier wave of 5MHz is 25 (i.e. RB numbers are 25) to be configured for UE 1, according to table 1 it is found that
Corresponding RBG sizes are 2；
The polymerizations of UE 2 determine that UE 2 is corresponded to using the fragment carrier wave of the backward compatibility carrier wave and a 1.4MHz of a 5MHz
RBG sizes be：ENB is that the configurations of UE 2 use the carrier bandwidths after the fragment carrier wave of 1.4MHz and the backward compatibility carrier wave of 5MHz
The sum of (i.e. RB numbers are for 31：6+25=31), according to table 1 it is found that corresponding RBG sizes are 3.
The method of determination of such RBG sizes does not have any influence for the UE of legacy version, for the UE of new version, if
Fragment carrier wave has been used, signaling need not be increased, has increased the flexibility of eNB scheduling.
Two, it is that RBG is numbered：It is numbered according to determining RBG sizes.
In this embodiment, the RB for including by backward compatibility carrier wave and fragment carrier wave as a whole, according to determine RBG
Size P carries out RBG divisions (i.e. a RBG includes P RB), and carries out RBG numbers.Such as：
For UE 1, carrier bandwidths 25, corresponding RBG sizes are 2, then can divide the RB that carrier bandwidths include
For 13 RBG, and this 13 RBG are numbered in sequence, preferably, can be numbered (0~12) from 0.It may be noted that
It is that the quantity for the RB that backward compatibility carrier wave includes in the present embodiment is not the integral multiple of RBG sizes, therefore allows the last one
The quantity for the RB that RBG includes is less than RBG sizes, for example, as can be known from Fig. 2,1 is contained only in the RBG that the number of UE 1 is 12
A RB.
For UE 2, all RB that the backward compatibility carrier wave and fragment carrier wave that are used include as a whole, into
After row RBG is divided, it is numbered.The carrier bandwidths of UE 2 are 31, and corresponding RBG sizes are 3, then can divide carrier bandwidths
For 11 RBG, and this 11 RBG are numbered in sequence, preferably, can be numbered from 0.Wherein, backward compatibility carrier wave
RBG number from 0 to 8, the RBG of fragment carrier wave continue from the maximum value that the RBG of backward compatibility carrier wave is numbered number, from 8 to
10, as can be known from Fig. 2, due to backward compatibility carrier wave that UE 2 had not only been used but also fragment carrier wave is used, and backward compatibility carrier wave packet
The quantity of the RB contained is not the multiple of RBG sizes (3), therefore the adjacent of backward compatibility carrier wave and fragment carrier wave the corresponding 8th
Not only the RB of backward compatibility carrier wave had been contained in a RBG, but also contained the RB of fragment carrier wave.It should be pointed out that for one point
The RBG of piece carrier wave can carry out RBG numbers, as shown in Figure 2 according to the sequence of low frequency to high frequency；It can also be according to high frequency to low
The sequence of frequency carries out RBG numbers.
As shown in Fig. 2, eNB scheduling UE1 and UE2 is continued to use when indicating RBG distribution conditions in 3GPPRelease-10
The working method of resource allocation type 0,1,2, difference lies in：Since the quantity of the RBG of UE 1 and UE 2 differ, use
The number of resource allocation bit have difference.I.e. for UE 1 and UE 2, although using identical backward compatibility carrier wave,
It is so that the RBG in backward compatibility carrier wave numbers difference, exists in this way, realizing eNB since UE2 configurations have used fragment carrier wave
The RBG sizes and number for flexibly determining this scheduling of UE in same subframe for the bandwidth situation that UE is used, to increase base
Stand scheduling flexibility.
Embodiment two
When the embodiment is that UE polymerize using backward compatibility carrier wave and fragment carrier wave with the main distinction of embodiment one
RBG dividing modes are different.
Specifically, embodiment one by all RB for including to compatible carrier wave and fragment carrier wave as a whole, carry out RBG
It divides；And the present embodiment is the RB for including by backward compatibility carrier wave and fragment carrier wave is considered as two parts and carries out RBG divisions respectively.
As shown in figure 3, for UE 2, the RB of RB and fragment carrier wave to backward compatibility carrier wave are respectively according to fixed
RBG sizes (3) carry out RBG divisions.Coding rule is：The RBG of backward compatibility carrier wave is numbered from 0, and the RBG of fragment carrier wave is certainly
The maximum value of the RBG numbers of backward compatibility carrier wave, which rises, to be continued to number.
It should be pointed out that being backward compatibility carrier wave and the two-part feelings of fragment carrier wave by carrier bandwidths at the RB for including points
Under condition, if the quantity for the RB that wherein some part includes is not the integral multiple of RBG sizes, allow last of the part
The quantity for the RB that a RBG includes is less than RBG sizes.In addition, for the RBG of a fragment carrier wave, it can be according to low frequency to high frequency
Sequence carry out RBG numbers, as shown in Figure 3；RBG numbers can also be carried out according to the sequence of high frequency to low frequency.
As shown in figure 3, after backward compatibility carrier wave and the two-part RB of fragment carrier wave are respectively divided, 11 RBG are obtained,
In, it is 0~8 that the RBG of backward compatibility carrier wave is numbered from 0, the RBG of fragment carrier wave according to the sequence of low frequency to high frequency, after
To the RBG of compatible carrier wave number maximum value 8 rise continue number be 9~10.Wherein, the quantity of the RB of backward compatibility Carrier section
It is not 3 multiple, therefore the last one RBG (number 8) of backward compatibility carrier wave contains only a RB.
The RBG sizes method of determination and RBG numberings of the embodiment, can make System benefits most under some scenes
Bigization, such as the RBG sizes of the carrier bandwidths determination obtained after fragment carrier wave after according to configuration using backward compatibility carrier wave, and only
According only to backward compatibility carrier wave carrier bandwidths determine RBG sizes it is identical when, it can be ensured that UE1 and UE2 backward compatibility carry
RBG sizes in wave are identical with RBG numbers, and in such cases, eNB can only dispatch UE2 in backward compatibility carrier wave
Transmission data, and DCI format identical with UE1 is used, it is mainly used for indicating that the bit number of resource allocation is identical, avoids making
With new DCI format or newly increase instruction resource allocation bit number, save system resource.
Embodiment three
Determine that the mode of RBG sizes is identical as embodiment one in the present embodiment, main difference is that the mode of RBG numbers.
Wherein, RBG coding modes when UE 1 is using only backward compatibility carrier wave are identical as embodiment one, no longer superfluous herein
It states.The case where for UE 2 using backward compatibility carrier wave and fragment carrier wave, the present embodiment are to carry backward compatibility carrier wave and fragment
The RB that wave includes carries out RBG divisions respectively, and is numbered respectively from 0.
As shown in figure 4, for UE 2, the RB (31) that its carrier bandwidths includes is divided into backward compatibility carrier wave and fragment carries
Wave two parts carry out RBG divisions according to fixed RBG sizes (3) respectively to this two-part RB, and coding rule is：Backward
The RBG of compatible carrier wave is numbered from 0, and the RBG of fragment carrier wave is also numbered from 0.
It should be pointed out that being backward compatibility carrier wave and the two-part feelings of fragment carrier wave by carrier bandwidths at the RB for including points
Under condition, if the quantity for the RB that wherein some part includes is not the integral multiple of RBG sizes, allow last of the part
The quantity for the RB that a RBG includes is less than RBG sizes.
As shown in figure 4, after backward compatibility carrier wave and the two-part RB of fragment carrier wave are respectively divided, 11 RBG are obtained,
In, it is 0~8 that the RBG of backward compatibility carrier wave is numbered from 0, and fragment carrier wave is numbered according to the sequence of low frequency to high frequency from 0
For 0~1 (can also be according to the sequence of high frequency to low frequency).The advantages of number, is in fragment carrier wave that eNB can be adjusted independently in this way
A certain UE is spent, the bit number of instruction resource allocation can be reduced at this time.Wherein, the quantity of the RB of backward compatibility Carrier section is not
3 multiple, therefore the last one RBG (number 8) of backward compatibility carrier wave contains only a RB.
Alternatively,
The RBG of backward compatibility carrier wave is numbered from 0, and the RBG of fragment carrier wave is according to low frequency to high frequency or high frequency to low
The sequence of frequency is numbered (such as embodiment three) from 0.
Above-mentioned dividing mode and numbering is all for being configured with a fragment carrier wave, when being configured with multiple fragments
Carrier wave, and when this multiple fragment carrier wave is discontinuous, dividing mode uses second, and particularly, coding rule is：
The RBG of backward compatibility carrier wave is numbered from 0, from the maximum value that the RBG of backward compatibility carrier wave is numbered, first to height
One or more fragment carrier waves of frequency part continue to number according to the sequence of low frequency to high frequency or high frequency to low frequency, then to low frequency
Partial one or more fragment carrier waves continue to number according to the sequence of low frequency to high frequency or high frequency to low frequency；Alternatively, first right
One or more fragment carrier waves of low frequency part continue to number according to the sequence of low frequency to high frequency or high frequency to low frequency, then to height
One or more fragment carrier waves of frequency part continue to number (such as embodiment according to the sequence of low frequency to high frequency or high frequency to low frequency
Four)；
Alternatively,
The RBG of backward compatibility carrier wave is numbered from 0, first to one or more fragment carrier waves of high frequency section according to low frequency
It is numbered from 0 to high frequency or high frequency to the sequence of low frequency, then to one or more fragment carrier waves of low frequency part according to low
Frequency continues to number to high frequency or high frequency to the sequence of low frequency；Alternatively, first being pressed to one or more fragment carrier waves of low frequency part
It is numbered from 0 according to the sequence of low frequency to high frequency or high frequency to low frequency, then to one or more fragment carrier waves of high frequency section
Continue to number (such as example IV) according to the sequence of low frequency to high frequency or high frequency to low frequency.
Example IV
In the present embodiment, new version UE polymerizations use the backward compatibility carrier wave of a 10MHz (including 50 RB) and two
The fragment carrier wave of 1.4MHz；Two of which fragment carrier wave is located at the both sides of backward compatibility carrier wave, as shown in Figure 5.This implementation
In example, RBG sizes method of determination is identical as embodiment one, and the main distinction is in system that RBG is compiled there are when multiple fragment carrier waves
Number how carry out.
Wherein, RBG coding modes when UE 1 is using only backward compatibility carrier wave are identical as embodiment one, no longer superfluous herein
It states.
There are when multiple fragment carrier waves in system, RBG numbers can be used such as under type：The RBG of backward compatibility carrier wave is opened from 0
Begin number；From the maximum value that the RBG of backward compatibility carrier wave is numbered, first to the fragment carrier wave of low frequency part according to low frequency to high frequency
Either the sequence of high frequency to low frequency continues to number again the fragment carrier wave to high frequency section according to low frequency to high frequency or high frequency to low
The sequence of frequency continues to number；Alternatively, first to the fragment carrier wave of high frequency section according to low frequency to high frequency or high frequency to the suitable of low frequency
Sequence continues to number, then continues to number according to the sequence of low frequency to high frequency or high frequency to low frequency to the fragment carrier wave of low frequency part.
As shown in figure 5, for UE 2, the RB (62) that its carrier bandwidths includes is divided into backward compatibility carrier wave and fragment carries
Wave two parts carry out RBG divisions according to fixed RBG sizes (3) respectively to this two-part RB.
Coding rule is：It is 0~16 that the RBG of backward compatibility carrier wave is numbered from 0, is compiled from the RBG of backward compatibility carrier wave
Number maximum value 16 rise, it is first suitable according to low frequency to high frequency (can also be high frequency to low frequency) to the fragment carrier wave 1 of low frequency part
It is 17~18 that sequence, which continues number, then to the fragment carrier wave 2 of high frequency section according to low frequency to high frequency (can also be high frequency to low frequency)
It is 19~20 that sequence, which continues number, as shown in Figure 5.
It is of course also possible to first continue to number to the fragment carrier wave 2 of high frequency section, then to the fragment carrier wave 1 of low frequency part after
The number of sequeling；
Following coding rule can also be used：The RBG of backward compatibility carrier wave is numbered from 0；First to low frequency part
Fragment carrier wave is numbered according to the sequence of low frequency to high frequency or high frequency to low frequency from 0, then to the fragment carrier wave of high frequency section
Continue to number according to the sequence of low frequency to high frequency or high frequency to low frequency；Alternatively, first to one or more fragments of high frequency section
Carrier wave is numbered according to the sequence of low frequency to high frequency or high frequency to low frequency from 0, then to the one or more point of low frequency part
Piece carrier wave continues to number according to the sequence of low frequency to high frequency or high frequency to low frequency.
As shown in fig. 6, it is 0~16 that the RBG of backward compatibility carrier wave is numbered from 0, first to the fragment carrier wave 1 of low frequency part
It is 0~1 to be sequentially numbered from 0 according to low frequency to high frequency (can also be high frequency to low frequency), then to the fragment of high frequency section
It is 2~3 that carrier wave 2 sequentially continues number according to low frequency to high frequency (can also be high frequency to low frequency).
It is of course also possible to be first numbered to the fragment carrier wave 2 from 0 of high frequency section, then to the fragment carrier wave 1 of low frequency part
Continue to number.
In order to realize the above method, as shown in fig. 7, the present invention provides RBG sizes and volumes after a kind of configuration fragment carrier wave
Number determining device, including：RBG determination units, RBG division units and RBG numbered cells；Wherein：
RBG determination units make for after configuring fragment carrier wave, determining that RBG sizes are equal to fragment carrier wave and are matched with it
The corresponding RBG sizes of the sum of the bandwidth of backward compatibility carrier wave；
RBG division units, for according to determining RBG sizes, the RB of the RB of backward compatibility carrier wave and fragment carrier wave to be regarded
The division of RBG is carried out for an entirety or two parts；
RBG numbered cells, the RBG for RBG and fragment carrier wave to the backward compatibility carrier wave after division are numbered.
Wherein, RBG determination units are further used for, when the sum of bandwidth is less than or equal to 10, determining that corresponding RBG sizes are
1；When the sum of bandwidth is more than or equal to 11 and is less than or equal to 26, determine that corresponding RBG sizes are 2；When the sum of bandwidth is more than or equal to
27 and less than or equal to 63 when, determine corresponding RBG sizes be 3；When the sum of bandwidth is more than or equal to 64 and is less than or equal to 110,
Determine that corresponding RBG sizes are 4.
RBG division units are further used for the RB of the RB of backward compatibility carrier wave and fragment carrier wave being considered as an entirety, press
The division of RBG is carried out according to determining RBG sizes, is only included the RB of backward compatibility carrier wave in each RBG after division or is only included
The RB of fragment carrier wave or the simultaneously RB of RB and fragment carrier wave comprising backward compatibility carrier wave.
RBG division units are further used for the RB of the RB of backward compatibility carrier wave and fragment carrier wave being considered as two parts, respectively
The division of RBG is carried out according to determining RBG sizes, only includes the RB of backward compatibility carrier wave in each RBG after division, or only wrap
The RB of the carrier wave containing fragment.
RBG numbered cells are further used for that the RBG of backward compatibility carrier wave is numbered since 0, and from backward compatibility
The maximum value of the RBG numbers of carrier wave rises, according to sequence of the frequency range of fragment carrier wave from low to high or from high frequency to low frequency, according to
The secondary RBG to fragment carrier wave is numbered.
RBG numbered cells are further used for that the RBG of backward compatibility carrier wave is numbered since 0, and since 0, press
According to sequence of the frequency range from low to high or from high frequency to low frequency of fragment carrier wave, the RBG of fragment carrier wave is numbered successively.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (9)
1. a kind of determination method of RBG sizes and number after configuration fragment carrier wave, which is characterized in that this method includes：
It is after terminal (UE) configures fragment carrier wave to enhance base station (eNB), and the eNB and UE determine resource block group (RBG) size etc.
In the fragment carrier wave and corresponding RBG sizes of the sum of matching the bandwidth of backward compatibility carrier wave used with it；
According to determining RBG sizes, by the RB of the RB of the backward compatibility carrier wave and the fragment carrier wave be considered as an entirety into
The RBG of the division of row RB to RBG, RBG and the fragment carrier wave to the backward compatibility carrier wave after division is numbered；
Wherein, the RB by the RB of the backward compatibility carrier wave and the fragment carrier wave is considered as entirety progress RB a to RBG
Division, be：
The RB of the RB of the backward compatibility carrier wave and the fragment carrier wave are considered as an entirety, carried out according to determining RBG sizes
The division of RB to RBG, the RBG after division include：The RB of RB and the fragment carrier wave comprising the backward compatibility carrier wave simultaneously
RBG；
Wherein, the corresponding bandwidth of the backward compatibility carrier wave and the corresponding bandwidth of the fragment carrier wave belong to same carrier wave.
2. configuring the determination method of RBG sizes and number after fragment carrier wave according to claim 1, which is characterized in that described
Fragment carrier wave and the sum of the bandwidth of backward compatibility carrier wave used is matched with it corresponding RBG sizes are：
When the sum of described bandwidth is less than or equal to 10, corresponding RBG sizes are 1；
When the sum of described bandwidth is more than or equal to 11 and is less than or equal to 26, corresponding RBG sizes are 2；
When the sum of described bandwidth is more than or equal to 27 and is less than or equal to 63, corresponding RBG sizes are 3；
When the sum of described bandwidth is more than or equal to 64 and is less than or equal to 110, corresponding RBG sizes are 4.
3. configuring the determination method of RBG sizes and number after fragment carrier wave according to claim 1, which is characterized in that by institute
The RB of the RB and the fragment carrier wave that state backward compatibility carrier wave are considered as an entirety, carry out RB to RBG's according to determining RBG sizes
It divides, the RBG after division further includes：Only include the RBG and/or the only RB comprising fragment carrier wave of the RB of backward compatibility carrier wave
RBG。
4. configuring the determination method of RBG sizes and number after fragment carrier wave according to claim 1, which is characterized in that carry out
When the division of RBG, this method further includes：
When the integral multiple for the RBG sizes that the sum of the RB of the RB and fragment carrier wave of the backward compatibility carrier wave is not to determine
When, allow the RB quantity for including in one of RBG to be less than determining RBG sizes.
5. according to the determination method of RBG sizes and number after the configuration fragment carrier wave of claim 1 or 4, which is characterized in that right
The RBG of the backward compatibility carrier wave after the division and RBG of the fragment carrier wave be numbered for：
The RBG of the backward compatibility carrier wave is numbered since 0, and most from the RBG of backward compatibility carrier wave numbers
It is worth greatly, according to sequence of the frequency range of the fragment carrier wave from low to high or from high frequency to low frequency, successively to the fragment
The RBG of carrier wave is numbered.
6. the determining device of RBG sizes and number after a kind of configuration fragment carrier wave, which is characterized in that including：RBG determination units,
RBG division units and RBG numbered cells；Wherein：
The RBG determination units, for after configuring fragment carrier wave, determining RBG sizes equal to the fragment carrier wave and matching with it
The corresponding RBG sizes of the sum of bandwidth to the backward compatibility carrier wave used；
The RBG division units, for according to determining RBG sizes, the RB of the backward compatibility carrier wave and the fragment to be carried
The RB of wave is considered as the division that an entirety carries out RB to RBG；
The RBG numbered cells, for the RBG to the RBG of the backward compatibility carrier wave after division and the fragment carrier wave into
Row number；
The RBG division units are further used for the RB of the RB of the backward compatibility carrier wave and the fragment carrier wave being considered as one
A entirety, the division of RB to RBG is carried out according to determining RBG sizes, and the RBG after division includes：Simultaneously comprising described backward simultaneous
Hold the RBG of the RB of carrier wave and the RB of the fragment carrier wave；
Wherein, the corresponding bandwidth of the backward compatibility carrier wave and the corresponding bandwidth of the fragment carrier wave belong to same carrier wave.
7. configuring the determining device of RBG sizes and number after fragment carrier wave according to claim 6, which is characterized in that described
RBG determination units are further used for when the sum of described bandwidth is less than or equal to 10, determine that corresponding RBG sizes are 1；When described
When the sum of bandwidth is more than or equal to 11 and is less than or equal to 26, determine that corresponding RBG sizes are 2；When the sum of described bandwidth is more than or equal to
27 and less than or equal to 63 when, determine corresponding RBG sizes be 3；When the sum of described bandwidth is more than or equal to 64 and is less than or equal to 110
When, determine that corresponding RBG sizes are 4.
8. configuring the determining device of RBG sizes and number after fragment carrier wave according to claim 6, which is characterized in that described
RBG division units are further used for the RB of the RB of the backward compatibility carrier wave and the fragment carrier wave being considered as an entirety, press
According to the division for determining RBG sizes progress RB to RBG, the RBG after division further includes：Only include the RBG of the RB of backward compatibility carrier wave
And/or the RBG of the only RB comprising fragment carrier wave.
9. configuring the determining device of RBG sizes and number after fragment carrier wave according to claim 6, which is characterized in that described
RBG numbered cells are further used for that the RBG of the backward compatibility carrier wave is numbered since 0, and from the backward compatibility
The maximum value of the RBG numbers of carrier wave rises, and the frequency range according to the fragment carrier wave is suitable from low to high or from high frequency to low frequency
Sequence is successively numbered the RBG of the fragment carrier wave.
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| PCT/CN2012/077919 WO2013029419A1 (en) | 2011-09-01 | 2012-06-29 | Determination method and device for size and number of rbg allocated with fragment carrier |
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| KR102481800B1 (en) * | 2016-08-11 | 2022-12-27 | 삼성전자 주식회사 | Method and apparatus for data transmission in new radio cellular network |
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| CN109548149B (en) * | 2017-09-21 | 2020-11-10 | 电信科学技术研究院 | RBG (role-based group) dividing method and user terminal |
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