WO2011020381A1

WO2011020381A1 - Indicating method, base station, decoding method and terminal for distributing radio channel resource

Info

Publication number: WO2011020381A1
Application number: PCT/CN2010/074641
Authority: WO
Inventors: 朱鹏; 郝鹏; 喻斌; 张禹强; 王瑜新; 张戎
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-08-18
Filing date: 2010-06-28
Publication date: 2011-02-24
Also published as: CN101657018A; CN101657018B

Abstract

An indicating method for distributing radio channel resource is provided by the present invention. The method involves: distributing multiple discontinuous clusters on a component carrier to a terminal by a base station, wherein each cluster comprises one or more continuous resource block groups (RBGs); sending uplink scheduling authorization signaling to the terminal by the base station to indicate the start position and the end position of each cluster distributed to the terminal. Corresponding decoding method, base station and terminal for distributing radio channel resource are also provided by the present invention. The solution of the present invention reduces signaling cost regardless of the number of clusters by only adding one virtual RBG.

Description

Method for indicating radio channel resource allocation, base station, decoding method and terminal

Technical field

The present invention relates to the field of mobile communications, and in particular, to an indication method and a base station, a decoding method and a terminal for radio channel resource allocation.

Background technique

The Long Term Evolution (LTE) system uses the centralized scheduling of the base station to control the Physical Uplink Shared Channel (PUSCH) transmission of the User Equipment (UE).

In the LTE system, the PUSCH frequency division multiplexing uplink system bandwidth of multiple user terminals in the small area, that is, the PUSCHs of different UEs are orthogonal in the frequency domain. The base station indicates the radio channel resource allocated for the PUSCH of a certain UE by using an Uplink Scheduling Grant (UL grant).

The uplink channel resource allocation of the LTE system is in units of resource blocks. A resource block is used to describe a mapping of a Physical Channel to a Resource Element (RE). Two resource blocks are defined in the system: a Physical Resource Block (PRB for short) and a Virtual Resource Block (VRB for short).

Representing a physical resource block PRB contiguous subcarriers (subcarrier) in the frequency domain, representing _{the b} successive symbols in the time domain. Where N = 12 and the subcarrier spacing is 15 kHz, that is, the width of a PRB in the frequency domain is 180 kHz. For the normal cyclic prefix (Normal CP), 3⁄4 = 7 , for the extended cyclic prefix (Extended CP), 3⁄4 = 6 , that is, the length of a PRB in the time domain is one. Slot (0.5ms). Thus, one PRB includes N _b x N resource units. In a time slot, the index of the _PRB is " _PRB , where " _PRB = o,..., -1 is the number of PRBs corresponding to the bandwidth of the uplink system; the index pair of RE is (k, i), where / t = o,..., AN _s - 1 is the frequency domain index, / = o,..., N _b -i is the time domain index, then

k

"PRB takes the regular cyclic prefix as an example. The structure of PRB is shown in Figure 1. A virtual resource block VRB has the same structure and size as the PRB. Two types of VRBs, a virtual resource blocks of distributed type (VRB) and a virtual resource blocks of localized type (VRB) are defined. When resources are allocated, a pair of VRBs located in two slots in one subframe (frame) are allocated together, and a pair of VRBs have an index "leak."

The centralized VRB maps directly to the PRB, ie

The distributed PRB is mapped to the PRB according to certain rules, that is,

Where = 0,..., 19 is the slot number within a radio frame (frame, 10ms). The mapping of VRB to PRB is different on two time slots within one subframe.

As shown in Figure 2, the PUSCH resource allocation uses a localized allocation method, that is, a PUSCH of a UE occupies a continuous bandwidth in the frequency domain, which is a part of the bandwidth of the entire uplink system. This bandwidth contains a set of consecutive PRBs, the number of PRBs is M, and the number of consecutive subcarriers included is '丄

The base station allocates a set of consecutive VRBs to the UE through uplink scheduling grant signaling (UL grant). Specifically, a Resource Indication Value (RIV) is given in the resource allocation field of the UL grant. The RIV indicates a starting position _start and a length _{eRBs of} a group of consecutive VRBs according to a tree representation method, where _{start is an} index of a starting VRB in the group of consecutive VRBs, and L _{c is} a number of VRBs included in the group of consecutive VRBs.

The LTE-Advanced system (referred to as LTE-A system) is a next-generation evolution system of the LTE system. As shown in Figure 3, the LTE-A system uses carrier aggregation technology to extend the transmission bandwidth. Each aggregated carrier is called a component carrier. Multiple component carriers may be contiguous or non-contiguous, may be in the same band, or may be in different bands.

In the LTE-A system, a PUSCH of a user terminal in one component carrier may adopt a continuous or non-contiguous resource allocation manner according to an indication of system signaling. Continuous resource allocation The resource allocation mode means that the PUSCH of the user terminal occupies a continuous bandwidth in one component carrier; the so-called discontinuous resource allocation means that the PUSCH of the user terminal occupies a plurality of bandwidths in one component carrier, and the bandwidth is discontinuous. Each segment of bandwidth contains a set of consecutive PRBs, called a cluster, as shown in Figure 4.

The PUSCH allocated to the discontinuous resources, how to indicate the allocated channel resources through system signaling, and save the signaling overhead as much as possible has become an urgent problem to be solved.

There are three types of downlink channel resource allocation in the LTE system, type 0, type 1 and type 2, where type 0 and type 1 allocate channel resources in units of Resource Block Group (RBG). RBG is defined as a set of consecutive PRBs, and the size of the resource block group (RBGsize, ie the number of PRBs included) is a function of the system bandwidth. As shown in Table 1, the LTE system bandwidth can be configured to 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, and the corresponding PRB numbers are 6, 15, 25, 50, 75, 100. According to different system bandwidths, the size of the resource block group is also different, that is, the granularity of resource allocation is different, as shown in Table 2.

Table 1 LTE system bandwidth

Table 2 Size of resource block group

In the study of the uplink of the LTE-A system, it is proposed that consecutive resources in one component carrier are allocated in units of PRBs, and non-contiguous resource allocations are in units of RBGs. When the discontinuous resource is allocated, the base station allocates a plurality of non-contiguous clusters to the user terminal by using uplink scheduling grant signaling, and each cluster includes a set of consecutive RBGs. Signaling indicates the starting and ending positions of each cluster. Wherein, the starting position is represented as an index of the first RBG of each cluster, and the ending position is represented as an index of the last RBG of each cluster. 4. The system bandwidth corresponding to one component carrier corresponds to the number of RBGs N, which is allocated by non-contiguous resources, and is divided into clusters in the frequency domain. To indicate the location of the first and last RBG of each cluster, a total of Indicates the location of 2w RBGs in N RBGs. According to the combination formula, need

(N \ _ m

Lm ) (N - 2m).-2m

State. Figure 5(1) is an example of N=9 and w=2.

It should be noted that the above method requires that each cluster contains at least two RBGs, and cannot indicate that one cluster or multiple clusters only contain one RBG. To solve this problem, m virtual RBGs are added on the basis of N RBGs, and when one or more of the m virtual RBGs are included in the 2m RBGs indicated by the signaling, the corresponding cluster is represented. Or multiple clusters contain only one RBG. Figure 5(2)(3)(4) is three examples of N=9 and m=2. The two added virtual RBGs are used to indicate that the two clusters contain only one. The case of RBG. Then, it is necessary to indicate the position of 2w RBGs in one RBG, according to the combination formula,

(Ν + 2λ _ (N + 2).

{2m ) (N + 2 - lm)\lm\ state.

The above method has the following disadvantages:

1) only the total number of states is given, and the indication method and decoding method corresponding to each state (each possible resource allocation position) are not given;

2) If the number of clusters is w, then w virtual RBGs need to be added, and there are a certain number of redundant states. Because the cluster and the cluster are non-contiguous, the last RBG of the previous cluster is not adjacent to the first RBG of the next cluster, and arbitrarily selecting 2m RBGs from N or N+2 RBGs includes The cluster is in a continuous state with the cluster. Summary of the invention The technical problem to be solved by the present invention is to provide an indication method for a radio channel resource allocation, a base station, a decoding method, and a terminal, which can indicate a resource location and save signaling.

In order to solve the above problem, the present invention provides a method for indicating a radio channel resource allocation. The base station allocates m non-contiguous clusters for a terminal on a component carrier, and each cluster includes one or more consecutive resource block groups (RBG). The base station sends the uplink scheduling grant signaling to the terminal, where the resource allocation index is used to indicate the starting position and the ending position of the m cluster, and the m cluster is incremented or decremented by frequency, and is added. A virtual RBG, the method includes:

Manner 1: For each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG And when the cluster is not the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is the previous RBG of the first RBG included in the next cluster of the cluster; When an RBG is included and the cluster is the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is a virtual RBG;

Or, in the second mode: for each cluster, when the cluster includes at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG and the cluster is not the first cluster, the starting position of the cluster is the last RBG of the last RBG included in the previous cluster of the cluster, the ending position of the cluster is the RBG included in the cluster; when the cluster only contains When an RBG and the cluster are the first cluster, the starting position of the cluster is a virtual RBG, and the ending position of the cluster is the RBG included in the cluster.

The base station indicates the location of the RBG using an RBG index,

In the first mode, the index of the N RBGs corresponding to the bandwidth of the physical uplink shared channel (PUSCH) discontinuous resource allocation in one component carrier is in the order of increasing frequency or decreasing frequency, and is in the order of 1, 2, ..., Ν, The index of the virtual RBG is N+1;

In the second mode, the index of the N RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in one component carrier is 2, 3, ..., N + 1 in the order of frequency increment or frequency decrement, and the virtual RBG The index is 1.

The resource allocation index r is obtained according to the following formula:

2m - l ij i + i - s _k

/ = o ^2m _ ^k Where r is the resource allocation index, N is the number of RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in the component carrier, and = 0, ... 2 - 1 is the starting position of the m non-contiguous clusters The index of the 2m RBGs corresponding to the termination position, < ₊₁ , (^^^^;) is the index of the start position and the end position RBG of the nth cluster in the m cluster, " = 0,..., - 1.

The base station indicates the location of the RBG using an RBG index,

In the first mode, the index of the N RBGs corresponding to the bandwidth of the physical uplink shared channel (PUSCH) discontinuous resource allocation in one component carrier is 0, 1, ..., Ν-1 in the order of increasing frequency or decreasing frequency. The index of the virtual RBG is Ν;

In the second mode, the index of the N RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier is 1, 2, ..., Ν, the index of the virtual RBG is in the order of frequency increment or frequency decrement. 0.

The resource allocation index r is obtained according to the following formula:

Where r is the resource allocation index, N is the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in the component carrier, and = 0, ... 2 - 1 is the starting position of the m non-contiguous clusters The index of the 2m RBGs corresponding to the termination position, < ₊₁ , (^^^^;) is the index of the start position and the end position RBG of the nth cluster in the m cluster, " = 0,..., - 1.

The method further includes: determining, by the base station, the number of RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier as follows: in a component carrier, the number of PRBs corresponding to the bandwidth range used for PUSCH discontinuous resource allocation is

Wherein the number of PRBs corresponding to the system bandwidth of one component carrier, the discontinuous resource allocation in one component carrier is in units of resource block groups, and the size of the resource block group is a function of the system bandwidth of the component carrier, or on the component carrier For the function of the bandwidth of the PUSCH discontinuous resource allocation, if the size of the resource block group is P PRBs, the number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in the component carriers is

N=lo Wherein, if N^ ^SCH _mo dP = o, the size of each RBG is P; if N^ ^SCH mod^>o, the size of the first ^^^//^ RBG is P, and the size of the last RBG to ^{^ PUSCH _ V ™ SCH / J} ; corresponding to the bandwidth and the number of RBG non-contiguous resource allocation for the PUSCH to the base station to inform the terminal through system information of a component carrier or a component carrier for PUSCH within discontinuous The parameters related to the RBG number corresponding to the bandwidth allocated by the resource are sent to the terminal.

The method further includes: the base station and the terminal agreeing on the number of clusters m, or informing the terminal of the cluster number m by using system information, or using parameters related to the clustering number m through system information Sending to the terminal, or notifying, by using the uplink scheduling grant signaling, the number of clusters m of the PUSCH discontinuous resource allocation of the current scheduled transmission on the component carrier.

The present invention also provides a method for decoding a radio channel resource allocation, the method comprising: receiving, by a terminal, an uplink scheduling grant signaling, and decoding, by using a resource allocation index carried in the uplink scheduling grant signaling, 2m starting positions of the m cluster And the RBG index of the termination position = .. 2^-1 , <₊₁; the decoding steps include:

Manner 1: The terminal determines whether the ^^ is an index of the virtual RBG. If yes, the last cluster contains only one RBG, and the index of the RBG is _ ₂ ; if not, the last cluster includes at least two RBGs, and The index of the first RBG and the last RBG is ( _∞ _ ₂ , s _2m _, ); and for the nth cluster, _n = 0,..., m_2 , to determine whether it is „ ₊₂ indicates the previous RBG RBG index, if yes, the nth cluster contains only one RBG, the index of the RBG is „; if not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG or

Manner 2: The terminal determines whether it is an index of the virtual RBG. If yes, the 0th cluster includes only one RBG, and if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the first RBG and The index of the last RBG is ( , ) ;

For the nth cluster, w = l, ..., - 1 , determine whether it is the index of the next RBG of the indicated RBG, and if so, the nth cluster contains only one RBG, and the index of the RBG is „ ₊₁ ; If not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG The method further includes: in the first mode: when the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in one component carrier, the indexes of the N RBGs sorted by frequency increment or frequency decrement are 1, 2, ... N, when the index of the virtual RBG is N+1, judge:

If ^- + then the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ ; if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is ( s _2m - ₂ , s _2m _ _x ) ;

For any cluster of w = 0,..., - 2, if „ ₊₁ = „ ₊₂ - 1, the cluster contains only 1 RBG, and the index of the RBG is „ n = Q,... , mi; if not, the index of the first RBG and the last RBG of the nth cluster;

In the second mode: when the index of the virtual RBG is 1, and the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in one component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 2, 3, .. when N+ 1, judge:

If =1, the 0th cluster includes only 1 RBG, if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is ( , s _x ); as well as

For any of w = l,..., - 1 , if „= „— !+i, this clause contains only 1 RBG, the index of the RBG is „ ₊₁ n = \,..., M-\; if not, the index of the first RBG and the last RBG of the nth cluster.

The foregoing method may further have the following feature: the step of decoding, by the terminal, the resource allocation index to obtain the ^^ ¹ includes: initial value = 0 and =1, and an initial value of r is a resource allocation index value;

Calculate the number of combinations p = ;

If ; ^>r , then s = s + l, then jump to the step of calculating the combined number; if p is not greater than r, then s _f = s

Calculation

S = S+l r = r - pi=i + \ and

If ≤ 2m - l, jump to the step of calculating the combined number; if not, then end.

The method also includes:

In mode 1: when the bandwidth for the PUSCH discontinuous resource allocation in one component carrier corresponds to the index of the virtual RBG, it is determined that:

If - _{i =} N, the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ , if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is ( —2 , s _2m _ _x ) ;

In the second mode, when the index of the virtual RBG is 0, the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in the component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 1, 2, When ...N, judge:

If =0, the 0th cluster includes only 1 RBG, if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is ( s _x ) ;

For any cluster of w = i,..., - 1, if „= „— , + ι, then the cluster contains only 1 RBG,

The index of the RBG is „ ₊₁ n = \,...,m-\; if not, it is the index of the first RBG and the last RBG of the nth cluster.

The above method may also have the following features: the step of decoding, by the terminal, from the resource allocation index to obtain W includes:

Initial value = 0 and s = 1, the initial value of r is the resource allocation index value;

Calculate the number of combinations

(N_s,

p= ;

I 2m - i If ; ^ > r , then s = s + l , then jump to the step of calculating the combined number; if p is not greater than r, then

Calculation

S = S + l

r = r - p

i = i + \ ; and

If ≤ 2m - l , jump to the step of calculating the combined number; if not, then end.

The foregoing method may further have the following feature: the terminal obtains the N value by using system information, or the terminal obtains N according to related parameters configured by system information.

The above method may also have the following feature: the m is a system default value, or the terminal obtains the m from the system information before the decoding step, or the terminal configures the system information from before the decoding step The relevant parameter is obtained by m. Alternatively, before the step of decoding, the terminal obtains, from the uplink scheduling grant signaling, the number of clusters m of the scheduled PUSCH discontinuous resource allocation transmission on the component carrier.

The present invention further provides a base station, where the base station is configured to: allocate, on a component carrier, m non-contiguous clusters, each cluster includes one or more consecutive RBGs; and send uplink scheduling grant signaling to the terminal, And using a resource allocation index to indicate a starting position and a ending position of the m cluster in the uplink scheduling grant signaling; the m clusters are sorted by frequency increment or frequency decreasing, wherein a virtual RBG is added, and the m is as follows: An indication of the starting and ending positions of the cluster:

Manner 1: For each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG And when the cluster is not the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is the previous RBG of the first RBG included in the next cluster of the cluster; When an RBG is included and the cluster is the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is a virtual RBG; or

Manner 2: For each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG and When the cluster is not the first cluster, the starting position of the cluster is the last RBG contained in the previous cluster of the cluster. The last RBG, the termination position of the cluster is the RBG included in the cluster; when the cluster contains only one RBG and the cluster is the first cluster, the starting position of the cluster is a virtual RBG, and the ending position of the cluster is the cluster The RBG included.

The base station is further configured to: indicate, by using an RBG index, a location of the RBG,

In the first manner, the bandwidth of the bandwidth for the PUSCH discontinuous resource allocation in one component carrier is N+1;

In the second mode, the bandwidth of the virtual RBG for the PUSCH discontinuous resource allocation in one component carrier is 1.

The base station is further configured to: obtain the resource allocation index r according to the following formula:

~

Where r is the resource allocation index, N is the number of RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in the component carrier, and = 0, ... 2 - 1 is the starting position of the m non-contiguous clusters The index of the 2m RBGs corresponding to the termination position, < ₊₁ , (^^^^;) is the index of the start position and the end position RBG of the nth cluster in the m cluster, " = 0,..., - 1.

In the first manner, the index of the bandwidth for the PUSCH discontinuous resource allocation in one component carrier is N for the virtual RBG;

In the second mode, the index of the bandwidth for the PUSCH discontinuous resource allocation in one component carrier is 0.

Where r is a resource allocation index, and N is a non-contiguous resource for the PUSCH in the component carrier The number of RBGs corresponding to the allocated bandwidth, = 0, ... 2 - l are the indices of the 2m RBGs corresponding to the start position and the end position of the m non-contiguous clusters, < ₊₁ , (^^^^ ;) is the index of the starting position and ending position RBG of the nth cluster in the m cluster, " = 0,..., - 1.

The base station is further configured to:

The number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in one component carrier is determined as follows: Within one component carrier, the number of PRBs corresponding to the bandwidth range for PUSCH discontinuous resource allocation is ^SCH , ^SCH < N^ , where For the number of PRBs corresponding to the system bandwidth of one component carrier, the discontinuous resource allocation within one component carrier is in units of resource block groups, and the size of the resource block group is a function of the system bandwidth of the component carrier, or is used on the component carrier. The function of the bandwidth of the PUSCH discontinuous resource allocation, if the size of the resource block group is P PRBs, the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in the component carriers is

Among them, if W^ ^SGH m. dP = Q, then the size of each RBG is P; if ^^^foot^), the size of the former LNS CH /P" RBG is P, and the size of the last RBG is ^SCH -P - [N^ ^SCR IP\; and

The system information is used to inform the terminal of the number of RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in one component carrier, or to transmit the parameters related to the RBG number corresponding to the bandwidth for PUSCH discontinuous resource allocation in one component carrier.

The base station is further configured to: agree with the terminal to specify the number of clusters m, or notify the terminal of the number of clusters m by using system information, or send parameters related to the number of clusters m through system information. To the terminal, or by using the uplink scheduling grant signaling, the terminal notifies the terminal of the scheduled PUSCH discontinuous resource allocation to transmit the number of clusters m on the component carrier.

The invention also provides a terminal, the terminal is set as:

Receiving the uplink scheduling grant signaling, decoding the RBG index of the 2m starting position and the ending position of the m cluster from the resource allocation index carried in the uplink scheduling grant signaling = .. 2^ - 1 , 3⁄4 < 3⁄4 ₊₁ , decode as follows:

Manner 1: Determine whether the index is a virtual RBG. If yes, the last cluster contains only one RBG, and the index of the RBG is _∞ _ ₂ ; if not, the last cluster contains at least two RBGs. And the index of the first RBG and the last RBG is ( _∞ _ ₂ , s _2m _ _x ); and for the nth cluster, _n = 0, ..., m_2, whether it is „ ₊₂ indicates the front of the RBG An RBG index, if yes, the nth cluster contains only one RBG, the index of the RBG is „; if not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG or

Manner 2: Determine whether the index is a virtual RBG. If yes, the 0th cluster includes only one RBG. If the index of the RBG is not, the 0th cluster includes at least two RBGs, and the first RBG and the last RBG. The index is ( , ) ;

For the nth cluster, w = l, ..., - 1 , determine whether it is the index of the next RBG of the indicated RBG, and if so, the nth cluster contains only one RBG, and the index of the RBG is „ ₊₁ ; If not, the nth cluster includes at least two RBGs, and the index of the first RBG and the last RBG is set to: decode the index of the first RBG and the last RBG of each cluster as follows:

In the first manner, when N RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier, the indexes of the N RBGs sorted by frequency increment or frequency decrement are 1, 2, ... N, virtual When the index of RBG is N+1, it is judged:

If ^- + then the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ ; if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is ( 2 , ) ; and

For any cluster of w = 0,..., - 2, if „ ₊₁ = „ ₊₂ - 1, the cluster contains only 1 RBG, and the index of the RBG is „ " = o, m-2 ; if not, the index of the first RBG and the last RBG of the nth cluster;

In the second mode, when the index of the virtual RBG is 1, and the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in one component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 2, 3 ,...N+ 1, judge:

If =1, the 0th cluster contains only 1 RBG, if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is ( s, ) ; and

For any of w = l,..., - 1 , if „= „— i + l , '' J 襄 contains only 1 RBG, the index of the RBG is „ ₊₁ " = l,.. ., — 1 ; ^ The result is not, B' J ( „, „ ₊₁ ) is the index of the first RBG and the last RBG of the nth cluster.

The terminal is configured to: decode from the resource allocation index according to the following manner: { £ _q ^_1 : initial value = 0 and = 1 , the initial value of r is a resource allocation index value;

Calculate the number of combinations p = ;

If ; ^>r , then s = s + l, then jump to calculate the combined number; if p is not greater than r, then = calculate

s = s + l

r = r - p

i=i+\ ; and

If ≤ 2m - l , jump to calculate the combined number; if not, then end.

The terminal is configured to: decode the first RBG and the last one of each cluster as follows

RBG index:

In the first manner, when N RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier, the indexes of the N RBGs sorted by frequency increment or frequency decrement are 0, 1, ..., N-1 When the index of the virtual RBG is N, it is judged:

If _{-1 =} N, the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ ; if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is ( s _2m — ₂ , s _2m _ _x ) ;

For any cluster of w = 0,..., - 2, if „ ₊₁ = „ ₊₂ - 1 , the cluster contains only 1 RBG, and the index of the RBG is „ " = o, m-2 ; if not, the index of the first RBG and the last RBG of the nth cluster;

In the second manner, when the index of the virtual RBG is 0, one component carrier is used for the PUSCH. The N RBGs corresponding to the bandwidth allocated by the non-contiguous resources, when the indexes of the N RBGs sorted by frequency increment or frequency decrement are 1, 2, ..., N, judge:

If =0, the 0th cluster includes only 1 RBG, and if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is (s, );

For any of w = l,..., - 1 , if „= „— i + l, '' J 襄 contains only 1 RBG, the index of the RBG is „ ₊₁ " = l,.. ., — 1; ^ The result is not, Bay ' J ( „, „ ₊₁ ) is the index of the first RBG and the last RBG of the nth cluster.

The terminal is configured to: decode from the resource allocation index according to the following manner: { £ _q ^_1 : initial value = 0 and s = 1 , the initial value of r is a resource allocation index value;

Calculate the number of combinations

(N_s

p= ,;

[2m - ij if; ^>r , then s = s + l, then jump to calculate the combined number; if p is not greater than r, then = calculate

5 = 5+1 r = r - p i=i+\; and

If ≤ 2m - l, jump to calculate the combined number; if not, then end.

The terminal is further configured to: obtain the N value by using system information, or obtain a related parameter according to system information configuration.

The terminal is further configured to: use a system default value m, or obtain the m from the system information, or obtain m from a related parameter configured by the system information, or obtain the current scheduling authorization signaling from the uplink scheduling authorization signaling. The scheduled PUSCH discontinuous resource allocation transmits the number of clusters m on the component carrier.

The indication method for discontinuous resource allocation proposed by the present invention can be expressed under the determined number of clusters There are possible resource allocations, and there is no limit to the location and size of the cluster. At the same time, the premise of cluster and cluster discontinuity is fully utilized. Regardless of the number of clusters m, only one virtual RBG is added, so that the signaling overhead is minimized. The decoding algorithm of the present invention has moderate complexity and is easy to implement. BRIEF abstract

The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. In the drawings: FIG. 1 is a schematic diagram of a physical resource block structure of an LTE system (taking a conventional cyclic prefix as an example); FIG. 2 is a schematic diagram of a physical uplink shared channel structure of an LTE system (taking a conventional cyclic prefix as an example);

3 is a schematic diagram of carrier aggregation in an LTE-A system;

4 is a schematic diagram of PUSCH discontinuous resource allocation in one component carrier of the LTE-A system; FIG. 5 is a schematic diagram of an example of N=9 and w=2;

6 is a flow chart (1) of the resource allocation index decoding algorithm of the present invention;

7 is a flow chart of a resource allocation index decoding algorithm of the present invention (2);

8 is a flow chart (3) of the resource allocation index decoding algorithm of the present invention. Preferred embodiment of the invention

The invention will be described in detail below with reference to the embodiments and the accompanying drawings.

In the present invention, the binomial coefficient (or combination number) is defined as

Where ", are all non-negative integers, n means n , 0!=1

The method for indicating wireless channel resource allocation provided by the present invention includes the following contents:

The base station allocates m non-contiguous clusters to the terminal on a component carrier, each cluster containing one or more a continuous resource block group (RBG), the base station sends an uplink scheduling grant signaling to the terminal, indicating a starting position and a ending position of the m non-contiguous clusters allocated to the terminal, and adding a virtual RBG, the m cluster The order of the start position and the end position of the m cluster is as follows: Method (1): For each cluster, when the cluster contains at least two RBGs, the starting position is the first part of the cluster. An RBG, the termination position is the last RBG included in the cluster; when the cluster contains only one RBG and the cluster is not the last cluster, the starting position of the cluster is the RBG included in the cluster, and the termination of the cluster The location is the previous RBG of the first RBG included in the next cluster of the cluster; when the cluster contains only one RBG and the cluster is the last cluster, the starting position of the cluster is the RBG included in the cluster, The termination position of the cluster is a virtual RBG;

Or, method (2): for each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; When an RBG is included and the cluster is not the first cluster, the starting position of the cluster is the last RBG of the last RBG of the previous cluster of the cluster, and the ending position of the cluster is the RBG included in the cluster; When an RBG is included and the cluster is the first cluster, the starting position of the cluster is a virtual RBG, and the ending position of the cluster is the RBG included in the cluster.

Wherein, the location of the RBG is indicated by using an RBG index, including:

In the method (1), the index of the N RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier is incremented or decremented in the order of 1, 2, ... N, and the index of the virtual RBG is N. +l.

In the method (2), the index of the N RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier is incremented or decremented in the order of 2, 3, ... N+1, and the index of the virtual RBG is 1.

The m cluster has a total of 2m RBG indexes, using l ≤ s _{k ≤} N + l, < ₊₁ indicates the index of 2m RBGs of the m cluster, (s ₂ „ ₂ „ ₊₁ ) w = Q,..., - 1 is the RBG index of the start position and the end position of the nth cluster, the 0th cluster is the first cluster, and the m-1th cluster is the last cluster.

Further, the uplink scheduling grant signaling uses a resource allocation index r to indicate a starting location and a ending location of m non-contiguous clusters allocated to the terminal, and a resource allocation index (Resource) Allocation Index, RAI) or Resource Indication Value (RIV) r is obtained according to the following formula:

Possible values for r are Ο,Λ

Where N is the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in one component carrier. ¹ is an index of 2m RBGs of m clusters, U w = 0, ..., - 1 is an index of the RBG of the start position and the end position of the "cluster". In the present invention, the calculation of r is not limited to the above formula. Other methods that use r and can uniquely decode ¹ can be used in the present invention.

Or, use the RBG index to indicate the location of the RBG, including:

In the method (1), the index of the bandwidth pair used for PUSCH discontinuous resource allocation in one component carrier is N.

In the method (2), the index of the N RBGs corresponding to the bandwidth of the PUSCH discontinuous resource allocation in one component carrier is incremented or decremented in the order of 1, 2, ... N, and the index of the virtual RBG is 0.

The m cluster has a total of 2m RBG indexes, and ≤ s _{k ≤} N, < ₊₁ indicates the index of 2m RBGs of the m cluster, (s ₂ „ ₂ „ ₊₁ ) w = 0,..., - 1 is the first The RBG index of the start position and the end position of the n cluster, the 0th cluster is the first cluster, and the m-1th cluster is the last cluster.

Further, the uplink scheduling grant signaling uses a resource allocation index r to indicate a starting location and a ending location of m non-contiguous clusters allocated to the terminal, and the resource allocation index r is according to the following formula.

Possible values for r are Ο,Λ

In the LTE-A system, the number of PRBs corresponding to the bandwidth range for PUSCH discontinuous resource allocation in one component carrier is

Where is the number of PRBs corresponding to the system bandwidth of one component carrier. In the uplink of the LTE-A system, the discontinuous resource allocation within one component carrier is in units of resource block groups (RBGs), and the size of the resource block group (RBG size) is a function of the system bandwidth of the component carrier, or Is a function of the bandwidth on the component carrier for PUSCH discontinuous resource allocation. If the size of the resource block group is P PRBs, the number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in the component carriers is

Wherein, if N^ ^SCH _mo d P = o, the size of each RBG is P; if N^ ^SCH mod ^ > o , then the size of the first ^^^ //^ RBG is the size of the last RBG is

Ν It is known to the base station, and can inform the user terminal through System Information, or send the parameters related to Ν to the user terminal through the system information, and the user terminal obtains 相关 according to the relevant parameters configured by other system information.

H does not use a non-contiguous resource allocation for a user terminal, and is divided into m clusters in the frequency domain, each cluster contains a set of consecutive RBGs, \ < m <

m may be a system default value, known to both the base station and the user terminal, such as m=2; or may be cell-specific or component-specific, base station through system information Informing the user terminal, or the user terminal obtains m according to relevant parameters configured by the system information, for example, m is a function of the system bandwidth of one component carrier, or a function of bandwidth for PUSCH discontinuous resource allocation on one component carrier, discontinuous When the resource is allocated, the user terminal determines the number of clusters on one component carrier according to the corresponding bandwidth; m may also be terminal-related (UE-specific), and the base station informs the user terminal of the PUSCH scheduled by the uplink scheduling grant signaling. The discontinuous resource allocation transmits the number of clusters m on a certain component carrier, for example, l=2 or 3 is indicated by lbit in the uplink scheduling grant signaling.

Thus, each cluster, whether containing one or more RBGs, needs an RBG indicating the start position and an RBG at the end position. For m non-contiguous clusters, a total of 2m RBG positions in N+1 RBGs are required to be indicated, according to the combination formula,

State.

The present invention also provides a decoding method for radio channel resource allocation. After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains m discontinuous allocations allocated by the base station. The specific location of the cluster:

From the r decoding, the starting position and ending position index of m non-contiguous clusters are obtained. The index of the nth aid is , n = 0,...,m-\ ;

Corresponding method (1) in the resource allocation indication method:

Judging whether the index is a virtual RBG, if yes, the last cluster contains only one RBG, and the index of the RBG is _∞ _ ₂ ; otherwise, the last cluster contains at least two RBGs, and the first RBG and The index of the last RBG is ( ― ₂ , s _2m _, ); for the nth cluster, _n = 0 ., m_2 , to determine whether ₊₁ is the index of the previous RBG of the RBG indicated by „ ₊₂ , and if so, The nth cluster contains only one RBG, and the index of the RBG is „, otherwise, the nth cluster includes at least two RBGs, and the indexes of the first RBG and the last RBG are;);

Or, corresponding to the method (2) in the resource allocation indication method:

Judge s. Whether it is the index of the virtual RBG, if yes, the 0th cluster contains only one RBG, the index of the RBG is otherwise, the 0th cluster contains at least two RBGs, and the index of the first RBG and the last RBG is ( , ) For the nth cluster, w = l,..., - 1 , determine whether it is - the index of the next RBG of the RBG, if so, the nth cluster contains only one RBG, and the index of the RBG is „ ₊₁ , otherwise, the nth cluster contains at least two RBGs, the index of the first RBG and the last RBG In the method (1) in the corresponding resource allocation indication method, when used in one component carrier

The N RBGs corresponding to the bandwidth allocated by the PUSCH discontinuous resource are sorted by frequency increment or decrement, and the indexes are 1, 2, ... N. When the index of the virtual RBG is N+1, then:

If 3⁄4„-, =w ₊ i, that is, the last RBG indicated by the signaling is a virtual RBG, then the last cluster (the first

_{The OT-} i cluster includes only one RBG, and the index of the RBG is ^ _-2 , that is, the first RBG of the last cluster indicated by the signaling;

n = 0,...,m-2 , that is, the index of the last RBG of the former W-1 cluster indicated by the signaling (the "cluster" = 2« + i, which is an odd number) is adjacent to it The index of the next RBG (k = 2n + 2 , is an even number) is small 1, then the cluster contains only 1 RBG, and the index of the RBG is s _2n n = Q,...,m-2 , ie signaling The first RBG of the cluster indicated;

Otherwise, « = o,..., _w -i is the index of the first and last RBG of the nth cluster; the specific flow chart is shown in Figure 6, including:

Step 601, decoding from r

Step 602, determining whether the last RBG is a virtual RBG; if yes, go to step 603, otherwise, go to step 604;

Step 603, s _2m _ _x = N + that is, the last RBG indicated by the signaling is a virtual RBG, and the last cluster (the _OT- i cluster) includes only one RBG, and the index of the RBG is ^ _-2 , that is, the letter Let the first RBG of the last cluster indicated; go to step 605;

Step 604, the last cluster (the _OT- i cluster) includes at least two RBGs, and the indexes of the first and last RBGs of the cluster are respectively ( _η! _ ₂ , s _2m _, );

Step 605: Determine whether an index of the last RBG of any cluster (the "cluster" of the "c" cluster (k = 2n ₊ is an odd number) is lower than an index of the next RBG adjacent thereto = 2« + 2 Even) small 1; if yes, go to step 606; otherwise, go to step 607;

Step 606, if yes, that is, n = o, ..., m-2, then the cluster contains only 1 RBG, and the index of the RBG is „ n = 0,...,m-2 , that is, signaling indication The first RBG of the cluster ends; step 607, the cluster contains at least 2 RBGs, {s _2n , s _{2n + l} ) " = 0, ..., m - 2 is the first of the "cluster" And the end of the last RBG, the end. In the above steps, the order of steps 602-604 and 605-607 can be reversed.

In the method (2) of the corresponding resource allocation indication method, when the index of the virtual RBG is 1, the N RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in one component carrier are sorted by frequency increment or decrement. 2,3,... N+1, then:

If =1, that is, the first RBG indicated by the signaling is a virtual RBG, the 0th cluster includes only one RBG, and the index of the RBG is the last RBG of the 0th cluster indicated by the signaling;

If ― , +1 n = l,...,ml, is the index of the first RBG of any cluster (the "cluster" of the post-1 cluster indicated by the signaling (k = 2n, even) The index of the adjacent previous RBG (k = 2n-\ is an odd number) is greater than 1, then the cluster contains only 1 RBG, and the index of the RBG is s _2n+l n = ..., m-\ The last RBG of the cluster indicated by the signaling;

Otherwise, « = o,..., _w -i is the index of the first and last RBG of the cluster; the specific process is shown in Figure 8, including:

Step 801, decoding from r

Step 802, determining whether the first RBG is a virtual RBG; if yes, go to step 803, otherwise, go to step 804;

Step 803, s ₀ = \, that is, the first RBG indicated by the signaling is a virtual RBG, and the 0th cluster only includes 1 RBG, and the index of the RBG is the first RBG of the 0th cluster indicated by the signaling; Go to step 805;

Step 804, the 0th cluster includes at least 2 RBGs, and the indexes of the first and last RBGs of the 0th cluster are respectively ( );

Step 805: Determine whether the index of the first RBG of any cluster (the "cluster" of the m-1 cluster (k = 2n, even) is higher than the index of the previous RBG adjacent thereto (A = 2w-1) , is odd) large 1; if yes, go to step 806; otherwise, go to step 807;

Step 806, if yes, that is, +1 w = l, ..., - 1, the cluster contains only one RBG, and the index of the RBG is „ ₊₁ n = ..., m-\ , that is, signaling The last RBG of the indicated cluster ends; Step 8O ⁷ , the cluster contains at least 2 RBGs, [s _2n , s _{2n + l} ) w = l, ..., -l is the index of the first and last RBG of the "cluster", and ends.

In the above steps, the order of steps 802-804 and 805-807 can be reversed.

The step of demodulating the resource allocation index r to obtain fe}^- ¹ is as follows, where r is a resource allocation index in the uplink scheduling grant signaling received by the user terminal, and N is a component carrier for the PUSCH non-contiguous resource. The number of RBGs corresponding to the allocated bandwidth, and w is the number of clusters. The flowchart of the decoding algorithm is shown in Figure 7, which specifically includes:

Step 701, taking initial values = 0 and s = i, the initial value of r is a resource allocation index value;

Step 702, calculating the number of combinations

Step 703, if p>r ·>Bei ¹ ] 5 = 5 + 1, then rush to step 702; no Beck ¹ j , s _f = s Step 704, calculate

5· = 5· + 1

r = r - ρ

i = i + l

Step 705, if ≤ 2m - 1, then jump to step 702; otherwise, end.

The terminal may also store the lookup table, and find the corresponding lookup table according to the resource allocation index r, the number of RBGs N, and the number of clusters m, to obtain the starting position and the ending position of the m cluster.

Or,

In the method (1) in the corresponding resource allocation indication method, when the N RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in one component carrier are sorted by frequency increment or decrement, the index is 0, 1, ... N-1, when the index of the virtual RBG is N, then:

If ^ _{_i =} N, that is, the last RBG indicated by the signaling is a virtual RBG, the last cluster (the _OT- i cluster) contains only one RBG, and the index of the RBG is ^ _-2 , that is, signaling indication Last cluster First RBG;

n = 0,...,m-2 , that is, any cluster in the former W1 cluster indicated by the signaling (the index of the last RBG of the "cluster" = 2« + i, is an odd number) The index of an RBG = 2« + 2, which is even) is smaller, then the cluster contains only 1 RBG, and the index of the RBG is s _2n n = Q,...,m-2, that is, the signaling indicates The first RBG of the cluster;

Otherwise, « = o,..., _w -i is the index of the first and last RBG of the nth cluster; the specific flow is similar to steps 601 to 607, the difference is that

In step 603, s = N, that is, the last RBG indicated by the signaling is a virtual RBG.

In the method (2) of the corresponding resource allocation indication method, when the index of the virtual RBG is 0, the N RBGs corresponding to the bandwidth for the PUSCH discontinuous resource allocation in one component carrier are sorted by frequency increment or decrement. 1,2,... N, then:

If = _0, i.e., the first indication of a signaling virtual RBG RBG, the 0-th cluster containing only one RBG, cluster 0 of the last RBG RBG index is indicative i.e. signaling;

If = ― _{1 +} 1 n = l,...,ml, that is, the index of the first RBG of any cluster (the "cluster" of the post-1 cluster indicated by the signaling (k = 2n, even) The index of the previous RBG adjacent to it (k = 2n-\ is an odd number) is greater than 1, then the cluster contains only 1 RBG, and the index of the RBG is s _{2n + l} n = ..., m-\ That is, the last RBG of the cluster indicated by the signaling;

Otherwise, « = o,..., _w -i is the index of the first and last RBG of the "cluster"; the specific flow is similar to steps 801 to 807, the difference is that

In step 803, =0.

The step of demodulating the resource allocation index r to obtain fe}^- ¹ is as follows, where r is a resource allocation index in the uplink scheduling grant signaling received by the user terminal, and N is a component carrier for the PUSCH non-contiguous resource. The number of RBGs corresponding to the allocated bandwidth, w is the number of clusters, and the flow of the decoding algorithm is similar to steps 701 to 705, except that, in step 702,

Calculate the number of combinations

Embodiment 1

Assume that in the LTE-A system, the system bandwidth of one component carrier is 20 MHz, and the corresponding PRB number is A = 100. What is the bandwidth range for PUSCH discontinuous resource allocation in the component carrier? 1^ is ^^ =^=100; the size of the resource block group is P = 4, and the system bandwidth of the component carrier (that is, the bandwidth used for PUSCH discontinuous resource allocation) corresponds to the number of RBGs.

And because

Each RBG has a size of 4 PRBs.

The base station informs the user equipment through the system information that the number of PRBs corresponding to the system bandwidth of a certain component carrier is A=100. The user terminal determines, according to the system bandwidth of the component carrier, the size of the resource block group RBG on the component carrier is Ρ=4, and calculates the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation as “Λ^/Ρ] =25.

For non-contiguous resource allocation, the system defaults to m=3, which is divided into 3 clusters in the frequency domain.

Embodiment 2

Assume that in the LTE-A system, the system bandwidth of one component carrier is 15 MHz, and the corresponding number of PRBs is A=75. In this component carrier, the number of PRBs corresponding to the bandwidth range for PUSCH discontinuous resource allocation is N^ ^SCH =N. ^ =75; The size of the resource block group is P = 4, and the system bandwidth of the component carrier (that is, the bandwidth for PUSCH discontinuous resource allocation) corresponds to the number of RBGs.

And because

The size of the first 18 RBGs is 4 PRBs, and the size of the last RBG is

The base station informs the user equipment through the system information that the number of PRBs corresponding to the system bandwidth of a certain component carrier is A=75. The user terminal determines that the size of the resource block group RBG on the component carrier is / ³ =4 according to the system bandwidth of the component carrier, and calculates that the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation is N=

= 19.

When the discontinuous resource is allocated, the user terminal determines the number of clusters w=2 on the component carrier according to the system bandwidth of the component carrier, that is, divides the cluster into 2 clusters in the frequency domain.

Embodiment 3

Assume that in the LTE-A system, the system bandwidth of one component carrier is 10 MHz, and the corresponding number of PRBs is N=50. In the component carrier, the number of PRBs corresponding to the bandwidth range for PUSCH discontinuous resource allocation is N^ ^SCH =N. ^ = 50; The size of the resource block group is p = 3, and the system bandwidth of the component carrier (that is, the bandwidth for PUSCH discontinuous resource allocation) corresponds to the number of RBGs.

And because

The size of the first 16 RBGs is 3 PRBs, and the size of the last RBG is

The base station informs the user equipment through the system information that the number of PRBs corresponding to the system bandwidth of a certain component carrier is=50. The user terminal determines that the size of the resource block group RBG on the component carrier is Ρ=3 according to the system bandwidth of the component carrier, and calculates that the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation is N=

= 17.

The base station informs the user terminal through the system information that, in the case of discontinuous resource allocation, the number of clusters on the component carrier, or the clustering m=2 on all component carriers of the cell, that is, two clusters in the frequency domain.

Embodiment 4

Assume that in the LTE-A system, the system bandwidth of one component carrier is 5 MHz, and the corresponding number of PRBs is N = 25; in the component carrier, the bandwidth range corresponding to the PUSCH discontinuous resource allocation corresponds to ^^^ =^\^ =25; The size of the resource block group is P = 2, the system bandwidth of the component carrier (that is, the bandwidth used for PUSCH discontinuous resource allocation) corresponds to the number of RBGs.

And because

Λ3⁄43⁄4 mod P = 25 mod 2 = 1 > 0

The size of the first 12 RBGs is 2 PRBs, and the size of the last RBG is

The base station informs the user equipment through the system information that the number of PRBs corresponding to the system bandwidth of a certain component carrier is =25. The user terminal determines that the size of the resource block group RBG on the component carrier is / ³ =2 according to the system bandwidth of the component carrier, and calculates that the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation is N=

= 13.

The base station informs the user terminal of the number of clusters of the PUSCH discontinuous resource allocation transmission scheduled by the UE on the component carrier by using the uplink scheduling grant signaling; or, in the uplink scheduling grant signaling, the lbit indicates m=2 or 3.

Embodiment 5

Assume that in the LTE-A system, the system bandwidth of one component carrier is 20 MHz, and the corresponding number of PRBs is A = 100. In this component carrier, the number of PRBs corresponding to the bandwidth range for PUSCH discontinuous resource allocation is ^^ = 80 < ^; The size of the resource block group is P = 4, and the number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in the component carrier is

N .. :20 and because

Ν^ ^Ά mod P = 80 mod 4 = 0

Each RBG has a size of 4 PRBs.

The base station informs the user equipment through the system information that the number of PRBs corresponding to the system bandwidth of a certain component carrier is A=100, and informs the user terminal of the parameter PUSCH-hoppmgOffiet, Λ3⁄4» = ₂₀ through the system information. The user terminal calculates that the number of PRBs corresponding to the bandwidth range used for PUSCH discontinuous resource allocation in the component carrier is The user terminal determines that the size of the resource block group RBG on the component carrier is / ³ =4 according to the bandwidth for the PUSCH discontinuous resource allocation on the component carrier, and can calculate the bandwidth for the PUSCH discontinuous resource allocation. The corresponding number of RBGs is N == 20

When the discontinuous resource is allocated, the user terminal determines the number of clusters m=2 on the component carrier according to the bandwidth for the PUSCH discontinuous resource allocation on the component carrier, that is, divides the cluster into two groups in the frequency domain.

Embodiment 6

Assume that in the LTE-A system, the system bandwidth of one component carrier is 10 MHz, and the corresponding number of PRBs is N = 50. In the component carrier, the number of PRBs corresponding to the bandwidth range for PUSCH discontinuous resource allocation is N^ ^SCH = 40 < 大小 The size of the resource block group is Ρ = 3, and the number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in the component carrier is

And because

Ν ^ ^Ά mod = 40 mod 3 = 1 > 0

The size of the first 13 RBGs is 3 PRBs, and the size of the last RBG is

The base station informs the user equipment through the system information that the number of PRBs corresponding to the system bandwidth of a certain component carrier is = 50, and informs the user terminal of the parameter PUSCH-hoppmgOffiet through the system information, and the N^ = \Q ₀ user terminal calculates the component carrier. The number of PRBs corresponding to the bandwidth range used for PUSCH discontinuous resource allocation is

^{NTM SCH} = A - A - A mod 2 = 40

The user terminal determines, according to the bandwidth for the PUSCH discontinuous resource allocation on the component carrier, the size of the resource block group RBG on the component carrier is Ρ=3, and can calculate the bandwidth corresponding to the PUSCH discontinuous resource allocation. The number of RBGs is N: AC ^SCH IP 14

The base station informs the user terminal of the number of clusters of the scheduled PUSCH discontinuous resource allocation transmission on a certain component carrier by using the uplink scheduling grant signaling; or, in the uplink scheduling grant signaling, uses lbit to indicate m=2 or 3. Example 7

It is assumed that in the LTE-A system, the number of RBGs corresponding to the bandwidth range for PUSCH discontinuous resource allocation in one component carrier is N = 25. The index of 25 RBGs is incremented or decremented by the order of 1, .., 25.

Add one virtual RBG based on 25 RBGs, and the index of the virtual RBG is 26.

4. Let a user terminal use non-contiguous resource allocation and divide 2 clusters (0th cluster and 1st cluster) in the frequency domain.

The RBG indicating the start position and the end position of each cluster is required, that is, four RBGs need to be indicated, and the positions of four RBGs in the 26 RBGs are required to be indicated, according to the combination formula,

State.

The representation method and decoding method of the present invention will be described below by taking the case of 2 cluster resource allocations of different positions and sizes as an example.

(One)

Assume that the 0th cluster contains RBGs of 1, 2, 3, and the 1st cluster contains RBGs of 5, 6, 7, 8, 9, 10, 11. The RBG indicating the start position and the end position of each cluster is required, that is, four RBGs need to be indicated, which are 1, 3, 5, and 11, respectively.

The index of the four RBGs is incremented by

{1,3,5,11}

Where ( , _Sl ) and ( , _S3 ) are the indices of the RBGs of the start position and the end position of the 0th cluster and the 1st cluster, respectively.

Then the resource allocation index r is

14646

The base station transmits to the user terminal a non-contiguous resource allocation within one component carrier The index is included in the line scheduling authorization signaling.

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the two non-contiguous clusters allocated by the base station: Step 601: Decoded from r. , , ^ } = {1,3,5,11};

Step 602: Determine whether the last RBG is a virtual RBG, ^=11≠26, go to step 604; Step 604, the last cluster (the first cluster) includes at least two RBGs, and the index of the RBG of the start position and the end position respectively Is ^ ) = (5,11);

Step 605, determining whether the index of the last RBG of the 0th cluster is smaller than the index of the next RBG adjacent to it, _Sl = 3 ≠ s ₂ -l, go to step 607;

Step 607, the 0th cluster includes at least 2 RBGs, and (^^)=(1,3) is the index of the RBG of the start position and the end position of the 0th cluster, and ends.

In the above steps, the order of steps 602 - 604 and 605 - 607 can be reversed.

(2)

Assume that the 0th cluster contains 12 RBGs, and the 1st cluster contains RBGs of 24, 25.

An RBG indicating a start position and a stop position of each cluster, where the 0th cluster contains only 1 RBG, therefore, the RBG of the start position of the cluster is 12, and the RBG of the end position is the next cluster (the first cluster) ) The starting position of the RBG (indexed at 24) of the previous RBG (index 23). The four RBGs that need to be indicated are 12, 23, 24, and 25 respectively.

The indexes of the four RBGs are sorted in increasing frequency as

{^,^,^,53}= {12,23,24,25}

Then the resource allocation index r is

"26-12, "26-23, "26-24, ί26-25

+ + + ,

4 3 2 1

= 1004

The base station includes the index in the uplink scheduling grant signaling sent to the user terminal for discontinuous resource allocation within one component carrier.

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the two non-contiguous clusters allocated by the base station: Step 601, and obtains from r decoding. 12,23,24,25};

Step 602, determining whether the last RBG is a virtual RBG, ^=25≠26, and proceeding to step 604; Step 604, the last cluster (the first cluster) includes at least two RBGs, the start position and the end position of the first cluster The indexes of RBG are respectively, ^ ) = (24, 25);

Step 605: Determine whether the index of the last RBG of the 0th cluster is next to the next one adjacent thereto

The index of the RBG is small 1, ^ = 3⁄4 -1, then the process proceeds to step 606;

Step 606, if yes, that is, =^-1, the cluster contains only one RBG, and the index of the RBG is ^=12, that is, the first RBG of the cluster indicated by the signaling ends;

In the above steps, the order of steps 602 - 604 and 605 - 607 can be reversed.

(three)

Assume that the 0th cluster contains RBGs of 7,8,9,10,11,12,13,14, and the first cluster contains RBGs of 18.

An RBG indicating a start position and a stop position of each cluster is required, wherein the last cluster (the first cluster) contains only one RBG, and therefore, the RBG of the start position of the cluster is 18, and the RBG of the termination position is a virtual RBG. (index is 26). The four RBGs that need to be indicated are 7, 14, 18, and 26, respectively.

The index of the four RBGs is incremented by

„ ₂ , }= {7,14,18,26} where ( , _Sl ) and ( , _S3 ) are the RBG of the starting and ending positions of the 0th cluster and the 1st cluster, respectively index of.

Then the resource allocation index r is

_ 26,

= 4124

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the two non-contiguous clusters allocated by the base station: Step 601: Decoded from r. , , ^ } = {7,14,18,26};

Step 602: Determine whether the last RBG is a virtual RBG, s ₃ = 26, and go to step 603; Step 603, s ₃ = 26, that is, the last RBG indicated by the signaling is a virtual RBG, and the last cluster (the first cluster) Only one RBG is included, the index of the RBG is =18, that is, the first RBG of the last cluster indicated by the signaling;

Step 605, determining whether the index of the last RBG of the 0th cluster is smaller than the index of the next RBG adjacent thereto, 1 s, =14 ≠ 5 ₂ -1, go to step 607;

Step 607, the cluster includes at least two RBGs, and = (7, 14) is the index of the RBG of the start position and the end position of the 0th cluster, and ends.

In the above steps, the order of steps 602 - 604 and 605 - 607 can be reversed.

(4)

Assume that the 0th cluster contains an RBG of 6, and the 1st cluster contains an RBG of 17.

An RBG indicating a start position and a stop position of each cluster, where the 0th cluster contains only 1 RBG, therefore, the RBG of the start position of the cluster is 6, and the RBG of the end position is the next cluster (1st cluster) The starting position of the RBG (indexed at 17) of the previous RBG (index is 16); the last cluster (the first cluster) contains only 1 RBG, therefore, the starting position of the cluster has an RBG of 17, terminated The RBG of the location is a virtual RBG (index 26). The four RBGs that need to be indicated are 6, 16, 17, and 26, respectively. The index of these 4 RBGs is incremented by

, ^ } = {6,16,17,26} where ( , _Sl ) and ( , _S3 ) are the indices of the RBGs of the starting and ending positions of the 0th cluster and the 1st cluster, respectively.

Then the resource allocation index r is 26

5001

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the two non-contiguous clusters allocated by the base station: Step 601, decoding from r ₂ , } = {6,16,17,26};

Step 602, determining whether the last RBG is a virtual RBG, s ₃ = 26, is a virtual RBG, go to step 603;

Step 603, s ₃ = 26, that is, the last RBG indicated by the signaling is a virtual RBG, and the last cluster (the first cluster) includes only one RBG, and the index of the RBG is =17, that is, the last indication of the signaling indication. The first RBG of the cluster; go to step 605;

Step 605, it is determined whether the index of the last RBG of the 0th cluster is smaller than the index of the next RBG adjacent to it, 1, 5 _{1 =} 5 ₂ -1, then go to step 606;

Step 606, _Sl = s ₂ - then the cluster contains only one RBG, the index of the RBG is = 6, that is, the first RBG of the cluster indicated by the signaling ends;

In the above steps, the order of steps 602 - 604 and 605 - 607 can be reversed.

Example eight It is assumed that in the LTE-A system, the number of RBGs corresponding to the bandwidth range for PUSCH discontinuous resource allocation in one component carrier is N=14. The index of 14 RBGs is 2, .., 14, 15 in order of increasing or decreasing frequency.

Add one virtual RBG based on 14 RBGs, and the index of the virtual RBG is 1.

4. Let a user terminal use non-contiguous resource allocation and divide 3 clusters in the frequency domain.

The RBG indicating the start position and the end position of each cluster is required, that is, 6 RBGs need to be indicated, and the positions of 6 RBGs in 15 RBGs are required to be indicated, according to the combination formula,

State.

The representation method and decoding method of the present invention will be described below by taking the case of three cluster resource allocations of different positions and sizes as an example.

(One)

Assume that the 0th cluster contains RBGs of 2,3, the first cluster contains RBGs of 5,6,7,8,9,10,11, and the second cluster contains RBGs of 13,14.

The RBG indicating the start position and the end position of each cluster is required, that is, 6 RBGs need to be indicated, which are 2, 3, 5, 11, 13, 14 respectively.

The index of these 6 RBGs is incremented by

w ₂ , {2,3,5,11,13,14} where (s ₂ , s ₃ ) are respectively the first and ^second positions of the first and last positions of the cluster

Index of RBG.

Then the resource allocation index r is 14

2724

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the three non-contiguous clusters allocated by the base station: Step 801, decoding from r s ₀ , _Sl , s ₂ , s ₃ , s ₄ , s ₅ }= {2,3,5,11,13,14};

Step 802: Determine whether the first RBG is a virtual RBG, s ₀ = 2≠1, go to step 804; Step 804, the 0th cluster includes at least 2 RBGs, the starting position of the 0th cluster, and the index of the RBG of the ending position They are respectively, ) = (2,3);

Step 805: Determine whether the index of the first RBG of any one of the two clusters (the first cluster and the second cluster) is greater than the index of the previous RBG adjacent thereto, s ₂ =5 ≠ _Sl + _S4 = \3≠s ₃ + to step 807;

Step 807, the first cluster and the second cluster both contain at least 2 RBGs, = (5,11) he

(S ₄ , ) = (13, 14) The index of the RBG of the start position and the end position of the first cluster and the second cluster, respectively, ends.

In the above steps, the order of steps 802-804 and 805-807 can be reversed.

(2)

Assume that the 0th cluster contains RBGs of 3, the first cluster contains RBGs of 5,6, and the second cluster contains RBGs of 13.

An RBG indicating a start position and a stop position of each cluster, where the 0th cluster includes only 1 RBG, therefore, the RBG of the start position of the cluster is a virtual RBG (index 1), and the RBG at the end position is the The RBG (index is 3) included in the cluster; the second cluster contains only 1 RBG, therefore, the RBG of the starting position of the cluster is the last RBG of the last RBG of the previous cluster of the cluster (index 7) The end position of the cluster is the RBG (index 13) contained in the cluster. The six RBGs that need to be indicated are 1, 3, 5, 6, 7, and 13, respectively.

The index of these 6 RBGs is incremented by

, , s ₂ , s ₃ , s ₄ , s ₅ } = {1,3,5,6,7,13} Where (s ₂ , s ₃ ) are the starting and ending positions of the 0, 1, and ² clusters, respectively.

Index of RBG.

Then the resource allocation index r is 13,

= 4119

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the three non-contiguous clusters allocated by the base station: Step 801: Decode from r to obtain _A. AAA } = {1,3,5,6,7,13};

Step 802, determining whether the first RBG is a virtual RBG, s ₀ = l, go to step 803;

Step 803, s ₀ =\, that is, the first RBG indicated by the signaling is a virtual RBG, and the 0th cluster only includes 1 RBG, and the index of the RBG is =3, that is, the end position of the 0th cluster indicated by the signaling. RBG; go to step 805;

Step 805: Determine whether the index of the first RBG of any one of the two clusters (the first cluster and the second cluster) is greater than the index of the previous RBG adjacent thereto, s ₄ =l = s, +\ , go to step 806; s ₂ =5≠ _Sl +l, go to step 807;

Step 806, = 7 = + 1 , the cluster contains only 1 RBG, and the index of the RBG is = 13 , that is, the last RBG of the cluster indicated by the signaling;

Step 807, the cluster includes at least two RBGs, and (^, ^ = (5, 6) is the index of the RBG of the start position and the end position of the first cluster, and ends.

In the above steps, the order of steps 802-804 and 805-807 can be reversed, and the order of 806-807 can be changed.

(three) It is assumed that the 0th cluster contains RBGs of 10, the first cluster contains RBGs of 12, and the second cluster contains RBGs of 15.

An RBG indicating a start position and a stop position of each cluster, where the 0th cluster includes only 1 RBG, therefore, the RBG of the start position of the cluster is a virtual RBG (index 1), and the RBG at the end position is the The RBG (index is 10) included in the cluster; the first cluster contains only one RBG, therefore, the RBG of the starting position of the cluster is the last RBG of the last RBG of the previous cluster of the cluster (index 11) The termination position of the cluster is the RBG (index 12) included in the cluster; the second cluster contains only 1 RBG, and therefore, the RBG of the starting position of the cluster is the last RBG of the previous cluster of the cluster. The latter RBG (index 13), the end position of the cluster is the RBG (index 15) contained in the cluster. The six RBGs that need to be indicated are 1, 10, 11, 12, 13, and 15, respectively.

The indexes of the six RBGs are sorted in increasing frequency as

„ ₂ , , ₅ } = {1,10,11,12,13,15}

Where (s ₂ , s ₃ ) are respectively the first and ^second positions of the 簇, Ι, ² clusters

Index of RBG.

Then the resource allocation index r is

3007

After receiving the uplink scheduling grant signaling sent by the base station, the user terminal decodes according to the resource allocation index, and obtains the specific locations of the three non-contiguous clusters allocated by the base station: Step 801, and obtains from r decoding. „ ₂ , , ₅ } = {1,10,11,12,13,15};

Step 802: Determine whether the first RBG is a virtual RBG, s ₀ = l, go to step 803; Step 803, s ₀ = \, that is, the first RBG indicated by the signaling is a virtual RBG, and the 0th cluster only contains 1 RBG, the index of the 1^0 is =10, that is, the RBG of the termination position of the 0th cluster indicated by the signaling; Go to step 805; Step 805: Determine whether the index of the first RBG of any one of the two clusters (the first cluster and the second cluster) is greater than the index of the previous RBG adjacent thereto, ^ = 11 = +1, 5 ₄ =13 = 5 ₃ +1 , go to step 806;

Step 806, ^ = 11 = +1, the cluster contains only 1 RBG, the index of the RBG is = 12, that is, the RBG of the termination position of the cluster indicated by the signaling; = 13 = + 1 , then the cluster is only An RBG is included, and the index of the RBG is =15, that is, the RBG of the termination position of the cluster indicated by the signaling ends.

In the above steps, the order of steps 802-803 and 805-806 can be reversed.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Industrial applicability

The indication method of discontinuous resource allocation proposed by the present invention can represent all possible resource allocation situations under the determined clustering number, and there is no limitation on the location and size of the cluster. At the same time, the premise of cluster and cluster discontinuity is fully utilized. Regardless of the number of clusters m, only one virtual RBG is added, so that the signaling overhead is minimized. The decoding algorithm of the present invention has moderate complexity and is easy to implement.

Claims

Claim

A method for indicating allocation of radio channel resources, wherein a base station allocates m non-contiguous clusters for a terminal on a component carrier, each cluster includes one or more consecutive resource block groups (RBGs), and the base station sends an uplink scheduling grant. Signaling to the terminal, in the uplink scheduling grant signaling, using a resource allocation index to indicate a starting position and a ending position of the m cluster, the m cluster being sorted by frequency increment or decrement, wherein a virtual RBG is added , the method includes:

Manner 1: For each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG and When the cluster is not the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is the previous RBG of the first RBG included in the next cluster of the cluster; when the cluster only contains An RBG and the cluster is the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is the virtual RBG; or

Manner 2: For each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG and When the cluster is not the first cluster, the starting position of the cluster is the last RBG of the last RBG included in the previous cluster of the cluster, and the ending position of the cluster is the RBG included in the cluster; when the cluster contains only one RBG And when the cluster is the first cluster, the starting position of the cluster is the virtual RBG, and the ending position of the cluster is the RBG included in the cluster.

2. The method of claim 1, wherein the base station indicates the location of the RBG using an RBG index,

In the first manner, the index of the N RBGs corresponding to the bandwidth of the physical uplink shared channel (PUSCH) discontinuous resource allocation in one component carrier is in the order of increasing frequency or decreasing frequency, and is in the order of 1, 2, ..., Ν The index of the virtual RBG is N+1;

In the second mode, the index of the bandwidth for the PUSCH discontinuous resource allocation in one component carrier is 1 for the virtual RBG.

3. The method of claim 2, wherein the resource allocation index r is obtained according to the following formula:

Where N is the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in the component carrier, and = 0, ... 2 - 1 is the starting position and the ending position corresponding to the m non-contiguous clusters. The index of the RBG, < ₊₁ , (^, ^^;) is the index of the start position and the end position RBG of the nth cluster in the m cluster, " = 0, ..., _l.

4. The method of claim 1, wherein the base station indicates the location of the RBG using an RBG index,

The method of claim 4, wherein the resource allocation index r is obtained according to the following formula:

6. The method of claim 2 or 4, further comprising:

The base station determines the number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in one component carrier as follows:

Within one component carrier, the number of physical resource blocks (PRBs) corresponding to the bandwidth range for PUSCH discontinuous resource allocation is

Wherein the number of PRBs corresponding to the system bandwidth of one component carrier, the discontinuous resource allocation in one component carrier is in units of resource block groups, and the size of the resource block group is a function of the system bandwidth of the component carrier, or on the component carrier Used for The function of the bandwidth of the PUSCH discontinuous resource allocation. If the size of the resource block group is P PRBs, the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in the component carriers is

Wherein, if N^ ^SCH _mo dP = o, the size of each RBG is P; if N^ ^ca modP>o, the size of the first ^^^//^ RBG is P, and the size of the last RBG is ^PUSCH _ . ^{VTM SCH} / J; and the base station informs the terminal of the RBG number corresponding to the bandwidth for the PUSCH discontinuous resource allocation in one component carrier through the system information, or uses one component carrier for the PUSCH discontinuous resource The parameters related to the number of RBGs corresponding to the allocated bandwidth are sent to the terminal.

7. The method of claim 1 further comprising:

The base station and the terminal agree on the number of clusters m, or

The base station informs the terminal of the cluster number m by using system information, or

And the base station sends, by using the system information, a parameter related to the clustering number m to the terminal, or the base station, by using the uplink scheduling authorization signaling, to inform the terminal that the scheduled PUSCH discontinuous resource allocation is transmitted on the component carrier. The number of clusters on m.

8. A decoding method for wireless channel resource allocation, the method comprising:

The terminal receives the uplink scheduling grant signaling, and decodes the resource block group (RBG) index s _k , k = 0 of the 2m starting position and the ending position of the m cluster from the resource allocation index carried in the uplink scheduling grant signaling. ..2m-\ , 3⁄4 _< 3⁄4 ₊₁ ; The decoding steps include:

method one:

The terminal judges _m -, whether virtual RBG index, and if so, the last cluster contains only one RBG, the RBG index is _∞ _ _2; if not, the last cluster comprising at least two RBG, and the first The index of one RBG and the last RBG is ( _∞ _ ₂ , s _2m _, );

For the nth cluster, _n = 0, ..., m_2, determine whether it is the index of the previous RBG of the RBG indicated by „ ₊₂ , and if so, the nth cluster contains only one RBG, and the index of the RBG is „; If not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG or Method 2:

The terminal determines s. Whether it is an index of the virtual RBG, if yes, the 0th cluster includes only one RBG, if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is ( , ) ; as well as

For the nth cluster, w = l, ..., - 1 , determine whether it is the index of the next RBG of the indicated RBG, and if so, the nth cluster contains only one RBG, and the index of the RBG is „ ₊₁ ; If not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG

9. The method of claim 8 further comprising:

In the first mode:

When N RBGs corresponding to the bandwidth of the physical uplink shared channel (PUSCH) discontinuous resource allocation in one component carrier, the indexes of the N RBGs sorted by frequency increment or frequency decrement are 1, 2, ..., N, virtual When the index of RBG is N+1, it is judged:

If ^- + then the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ ; if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is (S _2m - ₂ , S _2m _ _x ) ;

In the second way:

When the index of the virtual RBG is 1, a component carrier is used for PUSCH discontinuous resource allocation.

2,3,...N+ 1, judge:

For any of w = l,..., - 1 , if „= „— !+i, this clause contains only 1 RBG, the index of the RBG is „ ₊₁ n = \,..., M-\; if not, the first RBG of the nth cluster And the index of the last RBG.

10. The method according to claim 9, wherein the step of decoding, by the terminal, from the resource allocation index comprises:

Initial value = 0 and = 1 , the initial value of r is the resource allocation index value;

Calculate the number of combinations

If ; ^>r , then s = s + l, then jump to the step of calculating the combined number; if p is not greater than r, then

Calculation

+l

r = r - p

i=i+\; and

11. The method of claim 8 further comprising:

If - _{i =} N, the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ , if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is ( —2 , s _2m _ _x ) and

For any cluster of w = 0,..., - 2, if „ ₊₁ = „ ₊₂ - 1 , the cluster contains only 1 RBG, and the index of the RBG is „ n = Q,... , mi ; if not, the index of the first RBG and the last RBG of the nth cluster;

In the second mode, when the index of the virtual RBG is 0, the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in the component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 1, 2, When ...N, judge: If =0, the 0th cluster includes only 1 RBG, if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is (s, );

For any of w = l,..., - 1 , if „ = „— !+i, the bar contains only 1 RBG, and the index of the RBG is „ ₊₁ n = \,..., M-\; if not, the index of the first RBG and the last RBG of the nth cluster.

The method according to claim 11, wherein the step of decoding, by the terminal, from the resource allocation index comprises: initial values = 0 and = 1 , and an initial value of r is a resource allocation index value;

Calculate the number of combinations

(N_s

P= ,;

[2m - ij if; ^>r , then s = s + l, then jump to the step of calculating the combined number; if p is not greater than r, then

Calculation

5=5+1 r = r - p i=i+\;

The method according to any one of claims 9-12, further comprising: obtaining, by the terminal, the N value by using system information, or obtaining N by the terminal according to relevant parameters configured by the system information.

The method according to any one of claims 8 to 12, wherein the m is a system default value, or the terminal obtains the m from system information before the decoding step; or the decoded Before the step, the terminal obtains m from the relevant parameters of the system information configuration; or, before the step of decoding, the terminal obtains, from the uplink scheduling grant signaling, the scheduled PUSCH discontinuous resource allocation transmission on the component carrier. The number of clusters m.

15. A base station, the base station being configured to:

Allocating m non-contiguous clusters to a terminal on a component carrier, each cluster containing one or more links a continuous physical resource block (RBG); transmitting an uplink scheduling grant signaling to the terminal, where the resource allocation index is used to indicate a starting location and a ending location of the m cluster; the m cluster by frequency Incremental or frequency decremental ordering;

Wherein, adding a virtual RBG indicates the start position and the end position of the m cluster as follows:

Manner 1: For each cluster, when the cluster contains at least two RBGs, the starting position is the first RBG included in the cluster, and the ending position is the last RBG included in the cluster; when the cluster contains only one RBG And when the cluster is not the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is the previous RBG of the first RBG included in the next cluster of the cluster; When an RBG is included and the cluster is the last cluster, the starting position of the cluster is the RBG included in the cluster, and the ending position of the cluster is the virtual RBG; or

The base station according to claim 15, wherein the base station is further configured to: indicate, by using an RBG index, a location of the RBG,

In the first mode, the index of the N RBGs corresponding to the bandwidth of the physical uplink shared channel (PUSCH) discontinuous resource allocation in one component carrier is in the order of increasing frequency or decreasing frequency, and is in the order of 1, 2, ..., Ν The index of the virtual RBG is N+1;

The base station according to claim 16, wherein the base station is further configured to: obtain the resource allocation index r according to the following formula:

Where N is the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in the component carrier, and = 0, ... 2 -1 is the starting position and the ending position corresponding to the m non-contiguous clusters. The index of the RBG, < ₊₁ , (^, ^^;) is the index of the start position and the end position RBG of the nth cluster in the m cluster, " = 0, ..., _l.

18. The base station according to claim 15, wherein the base station is further configured to: indicate, by using an RBG index, a location of the RBG,

The base station according to claim 18, the base station is further configured to: obtain the resource allocation index r according to the following formula:

20. The base station according to claim 15, wherein the base station is further configured to:

The number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in one component carrier is determined as follows: Within one component carrier, the number of physical resource blocks (PRBs) corresponding to the bandwidth range for PUSCH discontinuous resource allocation is ^SCH , ^SCH < N^ , where is the number of PRBs corresponding to the system bandwidth of one component carrier, the discontinuous resource allocation in one component carrier is in units of resource block groups, and the size of the resource block group is a function of the system bandwidth of the component carrier, or The function of the bandwidth for the PUSCH discontinuous resource allocation on the component carrier. If the size of the resource block group is P PRBs, the number of RBGs corresponding to the bandwidth for PUSCH discontinuous resource allocation in one component carrier is Among them, if W^ ^SGH m. dP = Q, then the size of each RBG is P; if ^^^foot^), the size of the former LNS CH /P" RBG is P, and the size of the last RBG is ^SCH -P-[N^ ^SCR IP\; and

The base station according to claim 15, wherein the base station is further configured to:

And the terminal agrees the number of clusters m, or

Notifying the terminal of the number of clusters m by system information, or

Sending, by the system information, the parameter related to the clustering number m to the terminal, or informing the terminal, by using the uplink scheduling authorization signaling, the number of clusters of the PUSCH discontinuous resource allocation transmitted by the terminal on the component carrier. .

22. A terminal, the terminal is set to:

Receiving the uplink scheduling grant signaling, and decoding, from the resource allocation index carried in the uplink scheduling grant signaling, the resource block group (RBG) index s _k , k = 0, of the 2m starting position and the ending position of the m cluster. .2m-\ , <₊₁; Decode as follows:

Manner 1: Determine whether the index is a virtual RBG. If yes, the last cluster contains only one RBG, and the index of the RBG is _∞ _ ₂ ; if not, the last cluster contains at least two RBGs, and the first RBG And the index of the last RBG is ( _∞ _ ₂ , s _2m _, ) ;

For the nth cluster, _n = 0, ..., m_2, determine whether it is the index of the previous RBG of the RBG indicated by „ ₊₂ , and if so, the nth cluster contains only one RBG, and the index of the RBG is „; If not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG or

Method 2: Determine whether it is an index of the virtual RBG. If yes, the 0th cluster contains only one.

RBG, if the index of the RBG is not, the 0th cluster includes at least two RBGs, and the index of the first RBG and the last RBG is (, ); For the nth cluster, w = l, ..., - 1, determine whether it is the index of the next RBG of the indicated RBG, and if so, the nth cluster contains only one RBG, and the index of the RBG is „ ₊₁ ; If not, the nth cluster contains at least two RBGs, and the index of the first RBG and the last RBG

The terminal according to claim 22, wherein the terminal is configured to: decode an index of a first RBG and a last RBG of each cluster as follows:

In the first mode: when the N RBGs corresponding to the bandwidth allocated by the physical uplink shared channel (PUSCH) discontinuous resource allocation in one component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 1, 2, ...N, when the index of the virtual RBG is N+1, it is judged:

If 3⁄4„-, =w ₊ i, the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ ; if not, the last cluster contains at least two RBGs, and the first RBG and the last one The index of RBG is " _2m - ₂ , s _2m _ _x ) ;

In the second mode: when the index of the virtual RBG is 1, the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in one component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 2, 3 ,...N+ 1, judge:

If =1, the 0th cluster contains only 1 RBG, and if the index of the RBG is not, the 0th cluster contains at least two RBGs, and the index of the first RBG and the last RBG is (

S, ) and

The terminal according to claim 23, wherein the terminal is configured to: decode from the resource allocation index according to the following manner: ^ ¹ :

Calculate the number of combinations p = ;

+l

r = r - p

i=i+\ ; and

If ≤ 2m - l, jump to calculate the combined number; if not, then end.

If _{-i =} N, then the last cluster contains only 1 RBG, the index of the RBG is _∞ - ₂ ; if not, the last cluster contains at least two RBGs, and the index of the first RBG and the last RBG is " _2m - ₂ , s _2m _ _x ) ;

In the second mode, when the index of the virtual RBG is 0, the N RBGs corresponding to the bandwidth allocated for the PUSCH discontinuous resource allocation in the component carrier, the index of the N RBGs sorted by frequency increment or frequency decrement is 1. 2,...N, judge:

If =0, the 0th cluster contains only 1 RBG, and if the index of the RBG is not, the 0th cluster contains at least two RBGs, and the index of the first RBG and the last RBG is (s, ) and

For any cluster in w = l,..., - 1, if „= „— , + 1 , the cluster contains only 1 RBG,

The index of RBG is „ ₊₁ n = \,...,m-\; ^ The result is not, U'J (s _2n , s _2n+l ) is the first RBG of the nth cluster and the last RBG index.

The terminal according to claim 25, wherein the terminal is configured to: decode from the resource allocation index according to the following method: ^ ¹ : initial value = 0 and = 1 , initial value of r is resource allocation Index value

Calculate the number of combinations

(N_s

p= ,;

+l r = r - p i = i + \; and

If ≤ 2m - l, jump to calculate the combined number; if not, then end.

The terminal according to any one of claims 23-26, wherein the terminal is further configured to: obtain the N value by using system information, or obtain N according to related parameters configured by system information.

The terminal according to any one of claims 22-26, wherein the terminal is further configured to: obtain a system default value m, or obtain the m from system information, or obtain a relevant parameter from system information configuration. Or, obtain, from the uplink scheduling grant signaling, the number of clusters m of the scheduled PUSCH discontinuous resource allocation transmission on the component carrier.