CN102970753B - A kind of RBG processing method and system - Google Patents

A kind of RBG processing method and system Download PDF

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Publication number
CN102970753B
CN102970753B CN201110257133.3A CN201110257133A CN102970753B CN 102970753 B CN102970753 B CN 102970753B CN 201110257133 A CN201110257133 A CN 201110257133A CN 102970753 B CN102970753 B CN 102970753B
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rbg
carrier wave
backward compatibility
burst
numbered
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CN201110257133.3A
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Chinese (zh)
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CN102970753A (en
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夏树强
陈华夏
苟伟
金圣峣
戴博
左志松
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

The invention discloses a kind of RBG processing method and system, can will match the burst carrier wave used and backward compatibility carrier wave is considered as two independent parts, determine respective RBG sizes according to respective bandwidth respectively;According to the fixed RBG sizes, the RB of RB and the burst carrier wave to the backward compatibility carrier wave carries out RBG division, and RBG to the backward compatibility carrier wave after division and the RBG of the burst carrier wave are numbered.Therefore after solving configuration burst carrier wave, the resource allocation confusion problem caused by different editions UE RBG causes not of uniform size, be advantageous to LTE Advanced and LTE compatibility, be advantageous to the realization of LTE Advanced systems.

Description

A kind of RBG processing method and system

Technical field

The present invention relates to the communications field, and in particular to a kind of resource block group (RBG, Resource Block Group) processing Method and system.

Background technology

Development with Mobile Communication Industry and the continuous growth to mobile data services demand, people are to mobile logical The requirement more and more higher of the speed and service quality (Qos) of letter, then in 3G (Third Generation) Moblie (3G) also without extensive business With before, the research-and-development activity to next generation mobile communication system is just had begun to, wherein comparing typically the 3rd Long Term Evolution (LTE) project started for partner program (3GPP), the available maximum spectrum band of LTE system are a width of 20MHz (megahertz).With the further evolution of network, evolution systems of the LTE-A (evolution LTE) as LTE, height can be provided Up to 100MHz spectral bandwidth, more flexible higher-quality communication is supported, and possess good backwards compatibility.In LTE-A systems There are multiple component carriers (CC, component carrier) in system, a LTE terminal can only operate in some backward compatibility CC on, and the stronger LTE-A terminals of ability can be transmitted on multiple CC simultaneously.

In LTE system, when subcarrier spacing is 15kHz, by 12 on a subframe in time domain, frequency domain it is continuous or Discrete subcarrier is as a RB (Resource Block, resource block).Whether RB is continuously divided into PRB (things according to frequency Manage resource block) and two kinds of type (type) of VRB (virtual resource blocks), it is the least resource unit that uplink and downlink are dispatched.

Strengthen 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). Transmission DCI physical channel is referred to as Physical Downlink Control Channel (PDCCH, Physical Downlink Control CHannel).UE explains the content of resource allocation field by PDCCH DCI types.In each PDCCH, resource allocation word Section is made up of two parts:Resource allocation head and resource block assignment information.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, Liang Zheyong There is identical form;Now, distinguished by first 1 bit of resource allocation, 0 represents that type 0,1 represents Class1.And DCI lattice Formula 1A, 1B, 1C, 1D then transmit for type 2.Resource allocation type 0/1 indicates resource using PRB, and resource allocation type 2 is adopted Distributed resource is indicated with VRB.

When eNB carries out scheduling of resource, following several situations be present:

DCI is transmitted by Class1,2,2A, 2B, 2C, and resource allocation head (Resource Allocation Header) Bit value be 0 when:

In resource allocation type 0, resource block assignment information includes set of resources coordination contour, and the bitmap represents eNB distribution RBG information to particular UE.RBG size P depends on system bandwidth, and its corresponding relation is as shown in table 1, and table 1 is 3GPP versions The resource allocation RBG sizes that 10 (Release-10) are defined and downlink system Bandwidth map table:

Table 1

The number of resource group is determined jointly by system bandwidth and resource group size:Wherein includeIndividual size is P resource group, and a size isResource group.Resource group is since low frequency Numbering.RBG is numbered from 0 to NRBG- 1 is respectively mapped to highest significant position to least significant bit.

DCI by Class1,2,2A, 2B, 2C transmit, and the bit value of resource allocation head be 1 when:

In resource allocation type 1, resource block assignment information indicates in RBGs subset ranges for the UE of a scheduled The RB of distribution.The program is grouped according to table 1 to PRB, contains P Physical Resource Block in each RBG.By these resource blocks from 0 to P-1 is numbered.Choose the physical resource composition RBG subsets that numbering is p in one section of continuous RBG.ENB is right in subset range UE carries out resource allocation.

In Class1, resource block assignment information is divided into 3 fields:

First character section usesPositions of the RB in RBG selected by individual bit labeling;

Whether second field uses skew using 1 bit labeling;

3rd field includes bitmap, and each bit of the bitmap is used to represent a PRB in selected RBG subsets. Resource block is mapped on bitmap according to the growth of frequency since highest significant position.The size of the bitmap is defined as:Because bitmap is less thanTherefore bitmap can not cover all RBG, cause RBG is needed when being numbered into line displacement.

When it is 0 to mark whether using second field of skew, Δshift(p)=0 without using skew.Now resource block Numbering since low-limit frequency, it is incremented by successively from zero.When second field is 1, it will be introduced in resource block number partially Move, skew value is:WhereinRepresent the RB in subset of resource sets p Quantity.It can be obtained by equation below:

At UE ends, decoded by PDCCH, UE obtains the value of i-th of bit in bitmap, according to subset mark p, RB weight New definition is completed by equation below:

DCI is transmitted by Class1 A, 1B, 1C, 1D, using resource allocation type 2.Resource allocation type 0/1 using PRB come Resource is indicated, resource allocation type 2 indicates distributed resource using VRB.

From table 1 it follows that the size of carrier bandwidths determines RBG size, and then determine resource allocation in DCI The overall bit length of the number and DCI of bit number.

Burst carrier wave (Carrier Segment) is a kind of carrier wave of incompatibility, and burst carrier wave can not 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.Burst carries The bandwidth sum of ripple and the backward compatibility carrier wave of pairing is no more than 110RBs.

When being configured with burst carrier wave, it is contemplated that its characteristic after increase burst carrier wave with a PDCCH (after still being indicated The resource overall to compatible carrier wave and burst carrier wave), the addition of burst carrier wave can bring the increase of PRB sums, in fact it could happen that after Situations all different RBG corresponding to the respective PRB quantity of carrier wave, i.e. lowest version after to compatible carrier wave, burst carrier wave and polymerization UE and it is configured with the RBG causes not of uniform size that the redaction UE of burst carrier wave determines according to PRB quantity.Because existing standard is not supported It is simultaneously the user resource allocation of two or more different RBG sizes, therefore after configuration burst carrier wave, will faces and how to determine RBG sizes, the problem of to be explicitly indicated resource allocation information;It will be clear that because the situation of above-mentioned RBG causes not of uniform size is deposited Described problem can not solve at present.

The content of the invention

In view of this, it is a primary object of the present invention to provide a kind of RBG processing method and system, solve configuration burst and carry After ripple, the resource allocation confusion problem caused by different editions UE RBG causes not of uniform size.

To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:

A kind of RBG processing methods, this method include:

The burst carrier wave used will be matched and backward compatibility carrier wave is considered as two independent parts, respectively according to respective band Width determines respective resource block group RBG sizes;According to the fixed RBG sizes, to the resource of the backward compatibility carrier wave The RB of block RB and the burst carrier wave carries out RBG division, and the RBG to the backward compatibility carrier wave after division and described point The RBG of piece carrier wave is numbered.

When determining the RBG sizes:

When polymerization uses backward compatibility carrier wave and burst carrier wave, the RB quantity included according to each carrier wave looks into mapping table respectively To obtain corresponding RBG sizes;And/or

For burst carrier wave, the mapping table of special RBG sizes and downlink system bandwidth is redefined.

When dividing RBG, the RB of backward compatibility carrier wave and burst carrier wave is contained when different in a RBG.

When the RBG is numbered, if the RB sums are not the integral multiples of RBG sizes, situations below is allowed to deposit :The RB quantity included in the largest number of RBG is less than RBG sizes.

It is to the RBG methods being numbered:

For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, from backward compatibility carrier wave The maximum of RBG numberings continues to number backward, and number order is from low to high, or from high frequency to low frequency;

When multiple burst carrier waves and backward compatibility carrier aggregation are in use, according to the frequency of each burst carrier wave from low frequency to height Frequently, or from high frequency to low frequency it is numbered.

This method also includes:

When indicating RBG distribution conditions, the working method of application resource distribution type 0,1,2, different type and bandwidth RBG is of different sizes corresponding to carrier wave;Backward compatibility carrier wave and burst carrier wave map alone according to respective RBG sizes, descending It is backward compatibility carrier wave in the resource allocation bit that control information DCI is included, corresponding to the indication bit of backward compatibility carrier wave RBG, and corresponding to the indication bit of burst carrier wave it is the RBG of burst carrier wave.

It is to the RBG methods being numbered:

For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, also it is numbered, compiles from 0 Number order is from low to high, or from high frequency to low frequency;

When multiple burst carrier waves and backward compatibility carrier aggregation are in use, according to the frequency of each burst carrier wave from low frequency to height Frequently, or from high frequency to low frequency carry out RBG numberings.

This method also includes:

When indicating RBG distribution conditions, the working method of application resource distribution type 0,1,2, corresponding to different carrier waves In the case of RBG numbering identicals, the newly-increased DCI format for including carrier wave indicating bit, after indicating belonging to scheduled resource To compatible carrier wave and burst carrier wave;

Resource on corresponding different carrier wave, has that RBG is of different sizes.

A kind of RBG processing systems, the system include RBG sizes definition unit, RBG division units, RBG numbered cells;Its In,

The RBG sizes definition unit, it is considered as two solely for the burst carrier wave used and backward compatibility carrier wave will to be matched Vertical part, respective RBG sizes are determined according to respective bandwidth respectively;

The RBG division units, for according to the fixed RBG sizes, RB to the backward compatibility carrier wave and The RB of the burst carrier wave carries out RBG division;

The RBG numbered cells, for the RBG to the backward compatibility carrier wave after division and the burst carrier wave RBG is numbered.

The RBG sizes definition unit is used for it is determined that during the RBG sizes:

When polymerization uses backward compatibility carrier wave and burst carrier wave, the RB quantity included according to each carrier wave looks into mapping table respectively To obtain corresponding RBG sizes;And/or

For burst carrier wave, the mapping table of special RBG sizes and downlink system bandwidth is redefined.

The RBG division units are used for when dividing RBG:Contain backward compatibility carrier wave when different in a RBG and divide The RB of piece carrier wave.

When the RBG is numbered the RBG numbered cells, it is used for:

If the RB sums are not the integral multiples of RBG sizes, situations below is allowed to exist:Wrapped in the largest number of RBG The RB quantity contained is less than RBG sizes.

When the RBG is numbered the RBG numbered cells, it is used for:

For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, from backward compatibility carrier wave The maximum of RBG numberings continues to number backward, and number order is from low to high, or from high frequency to low frequency;

When multiple burst carrier waves and backward compatibility carrier aggregation are in use, according to the frequency of each burst carrier wave from low frequency to height Frequently, or from high frequency to low frequency it is numbered.

When indicating RBG distribution conditions, the RBG division units are used for:

RBG sizes corresponding to the carrier wave of the working method of application resource distribution type 0,1,2, different type and bandwidth are not Together;Backward compatibility carrier wave and burst carrier wave map alone according to respective RBG sizes;

It is backward compatibility carrier wave in the resource allocation bit that DCI is included, corresponding to the indication bit of backward compatibility carrier wave RBG, and corresponding to the indication bit of burst carrier wave be the RBG of burst carrier wave.

When the RBG is numbered the RBG numbered cells, it is used for:

For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, also it is numbered, compiles from 0 Number order is from low to high, or from high frequency to low frequency;

When multiple burst carrier waves and backward compatibility carrier aggregation are in use, according to the frequency of each burst carrier wave from low frequency to height Frequently, or from high frequency to low frequency carry out RBG numberings.

When indicating RBG distribution conditions, the RBG division units are used for:

The working method of application resource distribution type 0,1,2, in the case of RBG numberings identical corresponding to different carrier waves, The newly-increased DCI format for including carrier wave indicating bit, for indicating backward compatibility carrier wave and burst carrier wave belonging to scheduled resource;

Resource on corresponding different carrier wave, has that RBG is of different sizes.

The RBG treatment technologies of the present invention, are considered as two independent parts by the RB of backward compatibility carrier wave and burst carrier wave, point RBG sizes are not defined and divide RBG.Therefore after solving configuration burst carrier wave, different editions UE RBG causes not of uniform size are led The resource allocation confusion problem of cause, is advantageous to LTE-Advanced and LTE compatibility, is advantageous to LTE-Advanced systems Realize.

Brief description of the drawings

Fig. 1 is the RBG numbering schematic diagrames of the embodiment of the present invention 1;

Fig. 2 is the RBG numbering schematic diagrames of the embodiment of the present invention 2;

Fig. 3 is the schematic diagram of the resource allocation bit of the embodiment of the present invention;

Fig. 4 is the RBG handling process sketches of the embodiment of the present invention;

Fig. 5 is the RBG processing system figures of the embodiment of the present invention.

Embodiment

In order to solve after configuring burst carrier wave, the resource allocation caused by different editions UE RBG causes not of uniform size is chaotic Problem, to be advantageous to LTE-Advanced and LTE compatibility, be advantageous to the realization of LTE-Advanced systems;It will can match somebody with somebody Two independent parts are considered as to the backward compatibility carrier wave and the RB of burst carrier wave used, RBG sizes is defined respectively and divides RBG.In actual applications, the backward compatibility carrier wave and burst carrier wave are typically to match what is used.

Generally, can not the RB containing backward compatibility carrier wave and burst carrier wave simultaneously in a RBG.Carried for backward compatibility Ripple, the determination method of RBG sizes in 3GPP Release-10 is referred to, continues to use RBG sizes as shown in table 1 and descending system Command wide mapping table;For burst carrier wave, the mapping table of the RBG sizes and downlink system bandwidth shown in table 1 can be continued to use, The mapping table of special RBG sizes and downlink system bandwidth can be redefined.

When user's polymerization uses backward compatibility carrier wave and burst carrier wave, the RB quantity that is included according to each carrier wave is looked into respectively reflects Firing table is with RBG sizes corresponding to obtaining.The RB of backward compatibility carrier wave and burst carrier wave is divided into respectively according to this RBG size RBG.If RB sums are not the integral multiples of RBG sizes, 3GPP Release-10 regulations are continued to use:Included in the largest number of RBG RB quantity can be less than RBG sizes.

After the completion of RBG divisions, for the RBG of backward compatibility carrier wave, continue to continue to use 3GPP Release-10 regulations and opened from 0 Begin numbering, the RBG of burst carrier wave is continued to number backward from the RBG of the backward compatibility carrier wave maximums numbered, number order can To be from low to high, or from high frequency to low frequency.When multiple burst carrier waves with backward compatibility carrier aggregation in use, can also abide by Follow above-mentioned rule, after tabling look-up respectively to obtain RBG sizes, according to each burst carrier wave frequency from low to high, or from high frequency It is numbered to low frequency.When indicating RBG distribution conditions, resource allocation type 0,1,2 in 3GPP Release-10 is continued to use RBG corresponding to the carrier wave of working method, different type and bandwidth is of different sizes.By backward compatibility carrier wave and burst carrier wave according to each From RBG sizes map alone, in the resource allocation bit that DCI is included, be corresponding to the indication bit of backward compatibility carrier wave The RBG of backward compatibility carrier wave, and corresponding to the indication bit of burst carrier wave it is the RBG of burst carrier wave, UE difference demappings.

Certainly, after the completion of RBG divisions, following operation can also be performed:For the RBG of backward compatibility carrier wave, continue to continue to use 3GPP Release-10 regulations are numbered from 0;3GPP Release-10 regulations are also continued to use from 0 for the RBG of burst carrier wave It is numbered, number order can be from low to high, or from high frequency to low frequency.When multiple burst carrier waves and backward compatibility carry Ripple polymerize in use, above-mentioned rule can be also followed, after tabling look-up respectively to obtain corresponding RBG sizes, according to the frequency of each burst carrier wave Rate from low to high, or carries out RBG numberings from high frequency to low frequency.When indicating RBG distribution conditions, 3GPP is continued to use The working method of resource allocation type 0,1,2 in Release-10, corresponding to different carrier waves RBG numbering may it is identical, it is necessary to The newly-increased DCI format for including carrier wave indicating bit, for indicating backward compatibility carrier wave and burst carrier wave belonging to scheduled resource. Resource on corresponding different carrier wave, RBG sizes may be different, UE difference demappings.

Describe embodiments of the present invention in detail with reference to embodiments.

In a particular embodiment, it may be considered that the field that backward compatibility carrier wave and burst carrier aggregation use in lte-a system Scape.Assuming that two component carriers, polymerizable use are configured with lte-a system.One of backward compatibility carrier wave is 5MHz, bag Containing 25 RBs;Another burst carrier wave is 1.4MHz, includes 6 RBs.

Specific embodiment 1

Assuming that some redaction UE polymerization uses 5MHz backward compatibility carrier wave and 1.4MHz burst carrier wave. In resource allocation, for backward compatibility carrier wave, the mapping table of bandwidth and RBG sizes in 3GPP Release-10, such as table are continued to use Shown in 1, RBG sizes corresponding to 5MHz backward compatibility carrier wave are 2.For burst carrier wave, 3GPP is redefined or continued to use The mapping table of bandwidth and RBG sizes in Release-10, it is assumed here that continue to use 3GPP Release-10 mapping tables, 1.4MHz Burst carrier aggregation corresponding to RBG sizes be 1.

After determining RBG sizes corresponding to each carrier wave, by the RB of burst carrier wave and backward compatibility carrier wave be considered as two it is independent Part, RBG is divided according to respective RBG sizes respectively, and backward compatibility carrier wave and burst can not be contained in a RBG simultaneously The RB of carrier wave.If RB sums are not the integral multiples of RBG sizes, 3GPP Release-10 regulations are continued to use:The largest number of RBG The RB quantity inside included can be less than RBG sizes.

RBG numbering rule be:For the RBG of backward compatibility carrier wave, 3GPP Release-10 regulations are continued to use since 0 Numbering;For the RBG of burst carrier wave, continue to number from the maximum that the RBG of backward compatibility carrier wave is numbered, number order can be with It is from low to high, or from high frequency to low frequency.Here 3GPPRelease-10 regulations are continued to use, are numbered from low to high.Such as Shown in Fig. 1, the RBG numberings of backward compatibility carrier wave (only include 1 of backward compatibility carrier wave from 0 to 12 in wherein the 12nd RBG RB), the RBG of burst carrier wave is numbered from 13 to 15.When indicating RBG distribution conditions, the resource in 3GPP Release-10 is continued to use RBG corresponding to the carrier wave of the working method of distribution type 0,1,2, different type and bandwidth is of different sizes.

Backward compatibility carrier wave and burst carrier wave map alone according to respective RBG sizes, in the resource allocation ratio that DCI is included It is the RBG of backward compatibility carrier wave in spy, corresponding to the indication bit of backward compatibility carrier wave, and the indication bit of burst carrier wave is corresponding Be burst carrier wave RBG, UE difference demapping.Furthermore, it is desirable to increase the resource allocation bit number included in DCI, enable eNB The schedule information of RBG on backward compatibility carrier wave and burst carrier wave is enough indicated by the resource allocation bit included in DCI.As used During resource allocation type 0, it is 01000100000010001 to call the resource allocation bit corresponding to RBG 1,5,12,16.UE can To know the RBG 16 that have invoked on RBG 1,5,12 and burst carrier wave on backward compatibility carrier wave, while can be looked into again according to bandwidth For table to know that RBG sizes is 2 corresponding to backward compatibility carrier wave, RBG sizes corresponding to burst carrier wave are 1, therefore can clearly be obtained Know resource allocation conditions.

Specific embodiment 2

Assuming that some redaction UE polymerization uses 5MHz backward compatibility carrier wave and 1.4MHz burst carrier wave. In resource allocation, for backward compatibility carrier wave, the mapping table of bandwidth and RBG sizes in 3GPP Release-10, such as table are continued to use Shown in 1, RBG sizes corresponding to 5MHz backward compatibility carrier wave are 2.For burst carrier wave, 3GPP is redefined or continued to use The mapping table of bandwidth and RBG sizes in Release-10, newly defines the mapping of bandwidth as shown in table 2 and RBG sizes here Table, table 2 are the resource allocation RBG sizes and downlink system Bandwidth map table newly defined in the embodiment of the present invention.In table 2, RBG sizes corresponding to 1.4MHz burst carrier aggregation are 1.

Table 2

After determining RBG sizes corresponding to each carrier wave, by the RB of burst carrier wave and backward compatibility carrier wave be considered as two it is independent Part, RBG is divided according to respective RBG sizes respectively, and backward compatibility carrier wave and burst can not be contained in a RBG simultaneously The RB of carrier wave.If RB sums are not the integral multiples of RBG sizes, 3GPP Release-10 regulations are continued to use:The largest number of RBG The RB quantity inside included can be less than RBG sizes.

RBG numbering rule be:For the RBG of backward compatibility carrier wave, 3GPP Release-10 regulations are continued to use since 0 Numbering;For the RBG of burst carrier wave, continue to use 3GPP Release-10 regulations and be numbered from 0, number order can be from low Frequency arrives high frequency, or from high frequency to low frequency.Here 3GPPRelease-10 regulations are continued to use, are numbered from low to high.Such as Fig. 2 institutes Showing, the RBG of backward compatibility carrier wave is numbered from 0 to 12 (1 RB that backward compatibility carrier wave is only included in wherein the 12nd RBG), point The RBG of piece carrier wave is numbered from 0 to 5.When indicating RBG distribution conditions, the resource allocation type in 3GPP Release-10 is continued to use 0th, RBG corresponding to the carrier wave of 1,2 working method, different type and bandwidth is of different sizes, and after different type carrier aggregation RBG numberings may repeat, it is therefore desirable to the newly-increased DCI format for including carrier wave indicating bit, for indicating belonging to the resource of scheduling Backward compatibility carrier wave and burst carrier wave.

Assume that carrier wave indicating bit is 2 bits, and positioned at the most front two of resource indicating bit, backward compatibility carrier index is 0, burst carrier index is 1.When so using resource allocation type 0, the RBG 1,5,12 and burst of backward compatibility carrier wave are called Resource allocation bit corresponding to the RBG 2 of carrier wave is as shown in Figure 3.According to the resource allocation bit included in DCI, UE can be known The RBG 2 on RBG 1,5,12 and the burst carrier wave on backward compatibility carrier wave is have invoked, while can be tabled look-up and known according to bandwidth again RBG sizes corresponding to backward compatibility carrier wave are 2, and RBG sizes corresponding to burst carrier wave are 1, therefore can clearly know resource point With situation.

Being understood with reference to various embodiments above, present invention processing RBG operation thinking can represent flow as shown in Figure 4, The distance comprises the following steps:

Step 410:The burst carrier wave used will be matched and backward compatibility carrier wave is considered as two independent parts, respectively basis Respective bandwidth determines respective RBG sizes.

Step 420:According to the fixed RBG sizes, RB and the burst carrier wave to the backward compatibility carrier wave RB carry out RBG division.

Step 430:The RBG of RBG and the burst carrier wave to the backward compatibility carrier wave after division are numbered.

In order to ensure that the various embodiments described above and operation thinking can be realized smoothly, setting as shown in Figure 5 can be carried out. Referring to Fig. 5, Fig. 5 is the RBG processing system figures of the embodiment of the present invention, and the system includes connected RBG sizes definition unit, RBG Division unit, RBG numbered cells.

In practical application, RBG sizes definition unit can will match the burst carrier wave used and backward compatibility carrier wave regards For two independent parts, respective RBG sizes are determined according to respective bandwidth respectively.RBG division units can be according to true The fixed RBG sizes, the RB of RB and the burst carrier wave to the backward compatibility carrier wave carry out RBG division.RBG is numbered The RBG of the backward compatibility carrier wave after division and the RBG of the burst carrier wave can be numbered for unit.

It is visible in summary, either method or system, RBG treatment technologies of the invention, by backward compatibility carrier wave and The RB of burst carrier wave is considered as two independent parts, defines RBG sizes respectively and divides RBG.Therefore solve configuration burst to carry After ripple, the resource allocation confusion problem caused by different editions UE RBG causes not of uniform size, be advantageous to LTE-Advanced with LTE compatibility, be advantageous to the realization of LTE-Advanced systems.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (14)

1. a kind of resource block group RBG processing methods, it is characterised in that this method includes:
The burst carrier wave used will be matched and backward compatibility carrier wave is considered as two independent parts, it is true according to respective bandwidth respectively Fixed respective resource block group RBG sizes;According to the fixed RBG sizes, to the resource block RB of the backward compatibility carrier wave RBG division, and RBG and burst load to the backward compatibility carrier wave after division are carried out with the RB of the burst carrier wave The RBG of ripple is numbered;The RBG of the burst carrier wave be numbered including:For burst carrier wave, individually numbered since 0, or It is numbered according to order of the frequency range of burst carrier wave from low to high or from high frequency to low frequency and Base Serial Number carries with compatible The maximum RBG numberings of ripple are continuous;
When determining the RBG sizes:
When polymerization uses backward compatibility carrier wave and burst carrier wave, the RB quantity included according to each carrier wave looks into mapping table to obtain respectively To corresponding RBG sizes;And/or
For burst carrier wave, the mapping table of special RBG sizes and downlink system bandwidth is redefined.
2. according to the method for claim 1, it is characterised in that during division RBG, contain when different in a RBG backward simultaneous Hold the RB of carrier wave and burst carrier wave.
3. according to the method for claim 1, it is characterised in that when the RBG is numbered, if the RB sums are not The integral multiple of RBG sizes, then situations below is allowed to exist:The RB quantity included in the largest number of RBG is less than RBG sizes.
4. according to the method described in any one of claims 1 to 3, it is characterised in that be to the RBG methods being numbered:
For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, compiled from the RBG of backward compatibility carrier wave Number maximum continue to number backward, number order is from low to high, or from high frequency to low frequency;
When multiple burst carrier waves and backward compatibility carrier aggregation in use, according to each burst carrier wave frequency from low to high, Or it is numbered from high frequency to low frequency.
5. according to the method for claim 4, it is characterised in that this method also includes:
When indicating RBG distribution conditions, the working method of application resource distribution type 0,1,2, the carrier wave of different type and bandwidth Corresponding RBG is of different sizes;Backward compatibility carrier wave and burst carrier wave map alone according to respective RBG sizes, in descending control It is the RBG of backward compatibility carrier wave in the resource allocation bit that information DCI is included, corresponding to the indication bit of backward compatibility carrier wave, And corresponding to the indication bit of burst carrier wave it is the RBG of burst carrier wave.
6. according to the method described in any one of claims 1 to 3, it is characterised in that be to the RBG methods being numbered:
For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, also it is numbered from 0, numbering is suitable Sequence is from low to high, or from high frequency to low frequency;
When multiple burst carrier waves and backward compatibility carrier aggregation in use, according to each burst carrier wave frequency from low to high, Or RBG numberings are carried out from high frequency to low frequency.
7. according to the method for claim 6, it is characterised in that this method also includes:
When indicating RBG distribution conditions, the working method of application resource distribution type 0,1,2, compiled in RBG corresponding to different carrier waves In the case of number identical, the newly-increased Downlink Control Information DCI format for include carrier wave indicating bit, for the resource institute scheduled in indicating The backward compatibility carrier wave and burst carrier wave of category;
Resource on corresponding different carrier wave, has that RBG is of different sizes.
8. a kind of RBG processing systems, it is characterised in that the system includes RBG sizes definition unit, RBG division units, RBG and compiled Number unit;Wherein,
The RBG sizes definition unit, for will match the burst carrier wave that uses and backward compatibility carrier wave be considered as two it is independent Part, respective RBG sizes are determined according to respective bandwidth respectively;
The RBG division units, for according to the fixed RBG sizes, RB to the backward compatibility carrier wave and described The RB of burst carrier wave carries out RBG division;
The RBG numbered cells, enter for the RBG to the backward compatibility carrier wave after division and the RBG of the burst carrier wave Line number;The RBG of the burst carrier wave be numbered including:For burst carrier wave, the individually numbering, or according to burst since 0 Order of the frequency range of carrier wave from low to high or from high frequency to low frequency is numbered and the maximum of Base Serial Number and compatible carrier wave RBG numberings are continuous;
The RBG sizes definition unit is used for it is determined that during the RBG sizes:
When polymerization uses backward compatibility carrier wave and burst carrier wave, the RB quantity included according to each carrier wave looks into mapping table to obtain respectively To corresponding RBG sizes;And/or
For burst carrier wave, the mapping table of special RBG sizes and downlink system bandwidth is redefined.
9. system according to claim 8, it is characterised in that the RBG division units are used for when dividing RBG:One Contain the RB of backward compatibility carrier wave and burst carrier wave when different in individual RBG.
10. system according to claim 8, it is characterised in that when the RBG is numbered the RBG numbered cells, For:
If the RB sums are not the integral multiples of RBG sizes, situations below is allowed to exist:Included in the largest number of RBG RB quantity is less than RBG sizes.
11. according to the system described in any one of claim 8 to 10, it is characterised in that the RBG numbered cells are to the RBG When being numbered, it is used for:
For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, compiled from the RBG of backward compatibility carrier wave Number maximum continue to number backward, number order is from low to high, or from high frequency to low frequency;
When multiple burst carrier waves and backward compatibility carrier aggregation in use, according to each burst carrier wave frequency from low to high, Or it is numbered from high frequency to low frequency.
12. system according to claim 11, it is characterised in that when indicating RBG distribution conditions, the RBG divisions are single Member is used for:
RBG corresponding to the carrier wave of the working method of application resource distribution type 0,1,2, different type and bandwidth is of different sizes;Afterwards Mapped alone according to respective RBG sizes to compatible carrier wave and burst carrier wave;
It is backward compatibility carrier wave in the resource allocation bit that DCI is included, corresponding to the indication bit of backward compatibility carrier wave RBG, and corresponding to the indication bit of burst carrier wave it is the RBG of burst carrier wave.
13. according to the system described in any one of claim 8 to 10, it is characterised in that the RBG numbered cells are to the RBG When being numbered, it is used for:
For the RBG of backward compatibility carrier wave, it is numbered from 0;For the RBG of burst carrier wave, also it is numbered from 0, numbering is suitable Sequence is from low to high, or from high frequency to low frequency;
When multiple burst carrier waves and backward compatibility carrier aggregation in use, according to each burst carrier wave frequency from low to high, Or RBG numberings are carried out from high frequency to low frequency.
14. system according to claim 13, it is characterised in that when indicating RBG distribution conditions, the RBG divisions are single Member is used for:
The working method of application resource distribution type 0,1,2, in the case of RBG numberings identical corresponding to different carrier waves, increase newly Downlink Control Information DCI format comprising carrier wave indicating bit, for indicate backward compatibility carrier wave belonging to scheduled resource and Burst carrier wave;
Resource on corresponding different carrier wave, has that RBG is of different sizes.
CN201110257133.3A 2011-09-01 2011-09-01 A kind of RBG processing method and system CN102970753B (en)

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