CN101883434A - Method for allocating channel resources and base station - Google Patents

Abstract

The invention provides a method for allocating channel resources and a base station. The method is applied to the discontinuous resource allocation of a physical uplink sharing channel (PUSCH) in an LTE-A system, and comprises the step that when allocating the resources for the PUSCH of user equipment on a component carrier wave in a mode of discontinuous resource allocation, the base station allocates two discontinuous clusters for the user equipment according preset information and sends a result of the resource allocation to the user equipment, wherein the preset information at least comprises length information of one cluster. The method can indicate the condition of the resource allocation through uplink scheduling authorization signaling and save signaling expenditure effectively.

Description

Channel resource allocation method and base station

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a channel resource allocation method and a base station.

Background

A third Generation Partnership Project (3 GPP) Long Term Evolution (LTE) system controls Physical Uplink Shared Channel (PUSCH) transmission of User Equipment (UE) in a base station centralized scheduling manner.

In an LTE system, in addition to using a multi-User-multi-input-multi-Output (MU-MIMO) technology, the PUSCH of different User equipments in a cell is frequency division multiplexed with an uplink system bandwidth, that is, the PUSCH of different UEs is orthogonal in a frequency domain. And a base station (eNodeB, abbreviated as eNB) indicates, through an Uplink Scheduling Grant (UL Grant), a channel resource allocated for a PUSCH of a certain UE.

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

One physical resource block PRB occupies on the frequency domainA number of consecutive sub-carriers (subcarriers), wherein

The subcarrier spacing is 15kHz, i.e. the width of one PRB in the frequency domain is 180 kHz.

One physical resource block PRB occupies 1 slot (0.5 ms) in the time domain, and includes

A number of consecutive OFDM symbols, for a Normal cyclic prefix (normalcyp for short),

for Extended cyclic prefix (Extended CP for short),

thus, one PRB comprises

And (4) a resource unit. In the same time slot, the index of PRB is n_PRBWherein

the number of PRBs corresponding to the bandwidth of the uplink system; the index pair of RE is (k, l), where,

in order to be indexed in the frequency domain,

is a time domain index, then

Taking a conventional cyclic prefix as an example, the structure of the PRB is shown in fig. 1.

One virtual resource block VRB has the same structure and size as a PRB. Two types of VRBs are defined, distributed VRBs (virtual resource blocks of distributed type) and centralized VRBs (virtual resource blocks of localized type). When allocating resources, a pair of VRBs located in two slots within one subframe (1 ms) is allocated together, and the pair of VRBs has an index n_VRB。

Localized VRBs are mapped directly onto PRBs, i.e.

n_PRB＝n_VRB

The distributed PRBs are mapped onto the PRBs according to a certain rule, i.e.

n_PRB＝f(n_VRB，n_s)

Wherein n is_s0, 19 is the slot number within one radio frame (frame, 10 ms). The mapping of VRBs to PRBs is different on two slots within one subframe.

As shown in FIG. 2, in the LTE system, PUSCH employs connectionA persistent resource allocation (persistent resource allocation) method, i.e. the PUSCH of one UE occupies a continuous bandwidth in the frequency domain, which is a part of the entire uplink system bandwidth. The bandwidth comprises a set of consecutive PRBs, the number of PRBs being

Containing the number of consecutive subcarriers of

<math><mrow><msubsup><mi>M</mi><mi>sc</mi><mi>PUSCH</mi></msubsup><mo>=</mo><msubsup><mi>M</mi><mi>RB</mi><mi>PUSCH</mi></msubsup><mo>&CenterDot;</mo><msubsup><mi>N</mi><mi>sc</mi><mi>RB</mi></msubsup></mrow></math>

And the base station allocates a group of continuous VRBs to the UE through an uplink scheduling grant signaling UL grant. Specifically, a Resource Indication Value (RIV) is given in a Resource allocation field (Resource allocation field) of the UL grant. RIV indicates the starting position RB of a group of consecutive VRBs according to a tree representation method_STARTAnd length L_CRBsWherein, RB_STARTFor the index of the starting VRB in the set of consecutive VRBs, L_CRBsThe number of VRBs contained for the set of consecutive VRBs. The RIV is calculated as follows.

If it is not

$\mathrm{RIV}=N_{\mathrm{RB}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RB}}_{\mathrm{START}}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RB}}^{\mathrm{UL}}(N_{\mathrm{RB}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RB}}^{\mathrm{UL}}-1-{\mathrm{RB}}_{\mathrm{START}})$

In the LTE system, a base station sends an uplink scheduling grant signaling to a target user equipment through a Physical Downlink control channel (PDCCH for short). The LTE system defines a plurality of downlink control information formats (DCI formats). The uplink scheduling grant signaling is carried in a PDCCH having a downlink control information format 0(DCI format 0). In the PDCCH with DCIformat 0, the signaling overhead of the resource allocation region is

A 1-bit hopping flag bit (hopping flag) is used to indicate whether the scheduled PUSCH is frequency hopping enabled.

When PUSCH frequency hopping (frequency hopping) is enabled, a group of consecutive VRBs indicated by the resource indication amount RIV are mapped onto the PRB according to a certain frequency hopping rule, and the mapping of the VRBs onto the PRB is different on two slots of the scheduled subframe.

When the PUSCH frequency hopping is not enabled, a group of consecutive VRBs indicated by the resource indication amount RIV is directly mapped onto the PRB.

In the LTE system, the PDCCH receiving adopts a blind detection method. In a possible time-frequency position of a PDCCH, a UE tries to configure a plurality of PDCCHs one by one, and PDCCHs with the same downlink control information format size (also called a payload of a downlink control information format, including an information bit number and a padding bit number of the DCI format) only need one try, which is called a blind detection.

An LTE-Advanced system (LTE-a system for short) is a next-generation evolution system of the LTE system. As shown in fig. 3, the LTE-a system extends a transmission bandwidth by using a carrier aggregation (carrier aggregation) technique, and each aggregated carrier is referred to as a "component carrier". The multiple component carriers may be contiguous or non-contiguous, and may be located in the same frequency band (band) or in different frequency bands.

In the LTE-a system, PUSCH on each component carrier is scheduled independently. In one component carrier, the PUSCH of the user equipment may adopt a continuous resource allocation scheme or a non-continuous resource allocation scheme (non-continuous resource allocation) according to the indication of the system signaling. So-called continuous resource allocation, i.e. as in LTE system, the PUSCH of a user equipment occupies a continuous bandwidth within one component carrier; the discontinuous resource allocation means that the PUSCH of the user equipment occupies multiple bands of bandwidths in one component carrier, the bandwidths are discontinuous, and each band of bandwidths comprises a group of continuous RBs (also called clusters), as shown in fig. 4.

In the research on the resource allocation mode of the uplink channel of the LTE-A system, the continuous resource allocation of the PUSCH takes the RB as a unit, and the discontinuous resource allocation takes the RBG as a unit, namely, the resource allocation mode of the downlink channel of the LTE system is used for reference, so as to save the signaling overhead.

Downlink channel resources of the LTE system are allocated with 3 types, type 0, type 1, and type 2, where type 0 allocates channel resources in units of Resource Block Groups (RBGs). An RBG is defined as a set of contiguous PRBs, and the size of the resource block set (RBG size, i.e. the number of PRBs involved) is a function of the system bandwidth. As shown in table 1, the LTE system bandwidth may be configured to be 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, and 20MHz, and the number of PRBs corresponding to the system bandwidth is 6, 15, 25, 50, 75, and 100, respectively. According to different system bandwidth

The sizes of the resource block groups are also different, i.e. the granularity (granularity) of the resource allocation is different, see table 2.

TABLE 1LTE System Bandwidth

Channel bandwidth BWChannel[MHz](System Bandwidth)	1.4	3	5	10	15	20
							Transmission bandwidth configuration NRB(Transmission Bandwidth configuration)	6	15	25	50	75	100

Table 2 size of resource block group

System Bandwidth RBG Size

(#PRB) P(#PRB)

≤10 1

11-26 2

27-63 3

64-110 4

In the research on the uplink channel resource allocation mode of the LTE-a system, the following is also proposed:

■ not frequency hopping of PUSCH of discontinuous resource allocation;

■ cluster size (cluster size), i.e. the number of RBs contained in a cluster is Nx 1RB or Nx 2RBs or Nx 3RBs or Nx 4RBs or Nx 5RBs, N is a natural number;

■ to save signaling overhead, the number of clusters is limited to 2, that is, when using discontinuous resource allocation, the PUSCH of one ue in one component carrier occupies 2 discontinuous bandwidths, and each bandwidth contains a group of continuous RBs, which is called a cluster.

■ the signaling overhead for the non-continuous resource allocation should be the same as or similar to the signaling overhead for the continuous resource allocation

Wherein, for the continuous resource allocation mode,

1bit is a frequency hopping flag bit for a resource allocation domain, so that the PDCCH bearing the uplink scheduling authorization signaling of the signaling for continuous resource allocation and discontinuous resource allocation has the same DCI format size, and the blind detection times required by the UE for receiving the PDCCH are not increased;

the resource allocation methods proposed in the prior art do not impose limitations on the ratio of the lengths (or sizes) of the clusters. Considering that the modulation and coding modes adopted by the data of each cluster are the same, if the size difference of each cluster is too large, the channel estimation of each cluster has larger difference.

In the LTE system, channel estimation of the PUSCH is mainly performed by a Demodulation Reference Signal DM RS (Demodulation Reference Signal) for the PUSCH.

The DM RS structure of PUSCH is as shown in fig. 5 and 6. In the time domain, in each slot, the DM RS is always located at the 4 th (l ═ 3) of the 7 Normal CP symbols or at the 3rd (l ═ 2) of the 6 ExtendedCP symbols in the slot. In the frequency domain, the UE transmits the DM RS of the PUSCH on the transmission bandwidth of its PUSCH. A predefined DM RS sequence r^PUSCH(. o) multiplied by an amplitude scaling factor β_PUSCHThen from r^PUSCH(0) And starting to be mapped into the resource element RE set with the same position as the PUSCH transmission bandwidth in sequence. When mapping to RE (k, l), according to the increasing order of k and l, mapping from the frequency domain (k) to the time domain (l).

After receiving the demodulation reference signal DM RS, the base station obtains a channel response on a PUSCH transmission bandwidth according to a certain channel estimation algorithm, and the channel response is used for demodulating the PUSCH data on a corresponding frequency domain position. The more accurate the channel estimation, the better the demodulation performance of the PUSCH. And the accuracy of the channel estimation, and the DM RS sequence r^PUSCHLength of (·), i.e., transmission bandwidth of PUSCH. DM RS sequence r^PUSCHThe longer (· s), i.e. the wider the transmission bandwidth of the PUSCH, the more accurate the channel estimation.

In the LTE-a system, similar transmission methods are used for the demodulation reference signals DM RS of the PUSCH allocated with the non-contiguous resources, and the demodulation reference signals DM RS are respectively transmitted over the transmission bandwidth occupied by each cluster of the PUSCH, as shown in fig. 7.

If the difference between the sizes of the clusters is too large, and correspondingly, the difference between the sequence lengths of the demodulation reference signals DM RS corresponding to the clusters is also large, the channel estimation of the clusters will have a large difference, and thus the demodulation performance of the data of the clusters will also have a large difference.

In summary, how to indicate the allocated channel resources through system signaling for the PUSCH allocated for non-contiguous resources, and save signaling overhead as much as possible, so that the signaling overhead is the same as or similar to that of the continuous resource allocation, and the ratio of the sizes of the clusters is limited, which is a problem to be solved urgently.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a channel resource allocation method and a base station, which can indicate resource allocation situation through uplink scheduling authorization signaling when the base station schedules a user equipment to transmit a PUSCH employing discontinuous resource allocation, and can effectively save signaling overhead.

In order to solve the above technical problem, the present invention provides a channel resource allocation method, which is applied to Physical Uplink Shared Channel (PUSCH) discontinuous resource allocation in an LTE-a system, and the method includes:

when a base station allocates resources for a PUSCH of user equipment on a component carrier wave in a discontinuous resource allocation mode, allocating 2 discontinuous clusters for the user equipment according to preset information, and then sending a resource allocation result to the user equipment;

the preset information at least includes length information of one cluster.

Further, the method can also have the following characteristics:

the length of the cluster is represented by the number of Resource Blocks (RBs) or Resource Block Groups (RBGs) contained in the cluster.

Further, the method can also have the following characteristics:

the base station sending the resource allocation result to the user equipment includes sending the length information and the position information of the 2 clusters to the user equipment.

Further, the method can also have the following characteristics:

the base station uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling authorization signaling, wherein one field carries the position information of the 2 clusters, and the other field carries the length information of the 2 clusters, and then the uplink scheduling authorization signaling is sent to the user equipment.

Further, the method can also have the following characteristics:

the base station allocates 2 clusters with equal length for the user equipment;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station loads the length information of one cluster contained in the preset information into the field.

Further, the method can also have the following characteristics:

the preset information also comprises length information of another cluster;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station loads the length information of each of the 2 clusters contained in the preset information into the field.

Further, the method can also have the following characteristics:

the preset information also comprises length information of another cluster and a corresponding relation between the length information of 2 clusters and an associated serial number;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station carries the associated sequence numbers corresponding to the length information of the 2 clusters in the field according to the respective length information of the 2 clusters contained in the preset information and the corresponding relation.

Further, the method can also have the following characteristics:

the preset information also comprises the length ratio of another cluster to the cluster;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station loads the length ratio of the 2 clusters contained in the preset information and the length information of 1 cluster in the field.

Further, the method can also have the following characteristics:

the base station uses a field to carry the location information of the 2 clusters in the uplink scheduling grant signaling, including:

the base station carries the starting position and/or the ending position of the 2 clusters by a Resource Indication Volume (RIV), and the method comprises the following steps: the base station calculates an RIV (Rich information value) according to a tree representation method, wherein the starting position or the ending position of a first cluster in 2 clusters allocated to the user equipment is the starting position, and the starting position or the ending position of a second cluster in 2 clusters allocated to the user equipment is the ending position; and loading the RIV in the field in the uplink scheduling grant signaling;

the starting position of the first cluster is smaller than the ending position of the first cluster, the starting position of the second cluster is smaller than the ending position of the second cluster, and the ending position of the first cluster is smaller than the starting position of the second cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the method can also have the following characteristics:

the base station uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling grant signaling, including carrying the position information and the length information of one cluster by one field, carrying the ratio of the length of another cluster to the cluster by another field, and the distance information of the another cluster to the cluster.

Further, the method can also have the following characteristics:

the base station uses a field to bear the position information and the length information of one cluster in the uplink scheduling authorization signaling, and the method comprises the following steps: the base station calculates the RIV of the cluster according to the position information and the length information of the cluster, and loads the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the method can also have the following characteristics:

the base station distributes 2 clusters with equal length for the user equipment;

the base station uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling grant signaling, including carrying the position information and the length information of one cluster by one field and carrying the distance information of another cluster and the cluster by another field.

Further, the method can also have the following characteristics:

the base station uses a field to bear the position information and the length information of one cluster in the uplink scheduling authorization signaling, and the method comprises the following steps: the base station calculates the RIV of the cluster according to the position information and the length information of the cluster, and loads the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the method can also have the following characteristics:

the RBG comprises a plurality of continuous RBs;

the number of RBs contained in the RBG is configured by high-layer signaling, or the number of RBs contained in the RBG is determined by the system bandwidth of the component carrier where the RBG is located, or the number of RBs contained in the RBG is determined by the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the RBG is located.

Further, the method can also have the following characteristics:

the total number of RGB available for allocation to the user equipment is configured by higher layer signaling, or determined by the system bandwidth of the component carrier on which it is located, or determined by the bandwidth on the component carrier on which it is located for PUSCH discontinuous resource allocation.

In order to solve the above technical problem, the present invention provides a base station, which is applied to Physical Uplink Shared Channel (PUSCH) discontinuous resource allocation in an LTE-a system, and includes a resource allocation module and a transmission module, wherein:

the resource allocation module is used for allocating resources to a PUSCH of a user equipment on a component carrier wave by adopting a discontinuous resource allocation mode, and comprises the steps of allocating 2 discontinuous clusters to the user equipment according to preset information, wherein the preset information at least comprises length information of one cluster; sending the resource allocation result to the sending module;

and the sending module is used for receiving the resource allocation result sent by the resource allocation module and sending the resource allocation result to the user equipment.

Further, the base station may further have the following characteristics:

the resource allocation module represents the length of the cluster by the number of Resource Blocks (RBs) or Resource Block Groups (RBGs) contained in the cluster.

Further, the base station may further have the following characteristics:

the resource allocation result includes length information and location information of 2 clusters allocated for the PUSCH of the user equipment.

Further, the base station may further have the following characteristics:

the resource allocation module uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling authorization signaling, and comprises a field for carrying the position information of the 2 clusters and another field for carrying the length information of the 2 clusters, and then sends the uplink scheduling authorization signaling to the sending module;

the sending module is used for sending the uplink scheduling authorization signaling to user equipment.

Further, the base station may further have the following characteristics:

the resource allocation module is used for allocating 2 clusters with equal length for the user equipment;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length information of one cluster contained in the preset information into the field.

Further, the base station may further have the following characteristics:

the preset information also comprises length information of another cluster;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length information of each of the 2 clusters contained in the preset information into the field.

Further, the base station may further have the following characteristics:

the preset information also comprises length information of another cluster and a corresponding relation between the length information of 2 clusters and an associated serial number;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the associated sequence numbers corresponding to the length information of the 2 clusters into the field according to the respective length information of the 2 clusters contained in the preset information and the corresponding relation.

Further, the base station may further have the following characteristics:

the preset information also comprises the length ratio of another cluster to the cluster;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length ratio of the 2 clusters contained in the preset information and the length information of 1 cluster in the field.

Further, the base station may further have the following characteristics:

the resource allocation module, which uses a field to carry the location information of the 2 clusters in the uplink scheduling grant signaling, includes:

carrying the starting position and/or the ending position of the 2 clusters by a Resource Indicator Value (RIV), comprising: the base station calculates a resource indication amount (RIV) according to a tree representation method by taking the starting position or the ending position of a first cluster in the 2 clusters allocated to the user equipment as a starting position and taking the starting position or the ending position of a second cluster in the 2 clusters allocated to the user equipment as an ending position; and loading the RIV in the field in the uplink scheduling grant signaling;

the starting position of the first cluster is smaller than the ending position of the first cluster, the starting position of the second cluster is smaller than the ending position of the second cluster, and the ending position of the first cluster is smaller than the starting position of the second cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the base station may further have the following characteristics:

the resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, and includes using one of the fields to carry the location information and the length information of one of the clusters, using another of the fields to carry the ratio of the length of another cluster to the cluster, and the distance information of the another cluster to the cluster.

Further, the base station may further have the following characteristics:

the resource allocation module uses a field to carry the location information and the length information of one of the clusters in the uplink scheduling grant signaling, and the resource allocation module comprises: calculating Resource Indication Volume (RIV) of the cluster according to the position information and the length information of the cluster, and loading the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the base station may further have the following characteristics:

the resource allocation module allocates 2 clusters with equal length to the user equipment;

the resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, and includes using one field to carry the location information and the length information of one cluster and using another field to carry the distance information between another cluster and the cluster.

Further, the base station may further have the following characteristics:

the resource allocation module uses a field to carry the position information and the length information of one cluster in the uplink scheduling grant signaling, and the method comprises the following steps: calculating Resource Indication Volume (RIV) of the cluster according to the position information and the length information of the cluster, and loading the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the base station may further have the following characteristics:

the RBG comprises a plurality of continuous RBs;

the number of RBs contained in the RBG is configured by high-layer signaling, or the number of RBs contained in the RBG is determined by the system bandwidth of the component carrier where the RBG is located, or the number of RBs contained in the RBG is determined by the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the RBG is located.

Further, the base station may further have the following characteristics:

the total number of RGB available for allocation to the user equipment is configured by higher layer signaling, or determined by the system bandwidth of the component carrier on which it is located, or determined by the bandwidth on the component carrier on which it is located for PUSCH discontinuous resource allocation.

The method for indicating the channel resource allocation and the base station can effectively allocate discontinuous resources and have the following advantages that:

the ratio of the sizes of the clusters is limited to ensure that the channel estimation performance difference of each cluster is not overlarge during the non-continuous resource allocation, thereby ensuring that the data of each cluster has similar receiving performance;

by limiting the size of the cluster and/or the relative distance of the cluster and/or the ratio of the sizes of the clusters, the signaling overhead of non-continuous resource allocation is greatly saved and is the same as or similar to the signaling overhead of continuous resource allocation;

the method is low in implementation complexity and convenient to implement.

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);

fig. 3 is a schematic diagram of carrier aggregation for LTE-a system;

fig. 4 is a schematic diagram of PUSCH discontinuous resource allocation in one component carrier of an LTE-a system;

fig. 5 is a schematic diagram of a demodulation reference signal slot position of a physical uplink shared channel of an LTE system;

fig. 6 is a schematic diagram of a demodulation reference signal structure of a physical uplink shared channel of an LTE system (taking a conventional cyclic prefix as an example);

fig. 7 is a schematic diagram of a demodulation reference signal structure of a physical uplink shared channel allocated with non-continuous resources in a component carrier of an LTE-a system (taking a conventional cyclic prefix as an example);

fig. 8 is a flowchart of a channel resource allocation method according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a base station structure according to an embodiment of the present invention.

Detailed Description

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

The invention provides a method for allocating discontinuous resources of a wireless channel, which can enable the resource allocation to be more flexible under the condition of limited signaling overhead, and meanwhile, the indicating method has small complexity and is convenient to realize, as shown in figure 8, the method comprises the following steps:

step S801: when a base station allocates resources for a Physical Uplink Shared Channel (PUSCH) of user equipment on a component carrier wave in a discontinuous resource allocation mode, allocating 2 discontinuous clusters for the user equipment according to preset information;

the preset information at least includes length information of one cluster. By limiting the length of the cluster, the signaling overhead is effectively controlled.

The length of the cluster (or cluster size) is represented by the number of Resource Blocks (RBs) or Resource Block Groups (RBGs) included in the cluster.

Step S802: and the base station sends the resource allocation result to the user equipment.

Wherein an RBG is defined as a set of consecutive RBs. The number of RBs contained in the RBG is configured by higher layer signaling, or is determined according to the system bandwidth of the component carrier where the RBG is located, or is determined according to the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the RBG is located.

Preferably, the size of the resource block group (RBG size, i.e. the number of RBs included) may be 1RB or 2RBs or 3RBs or 4RBs or 5 RBs.

The total number of RGB available for allocation to the user equipment is configured by higher layer signaling, or determined by the system bandwidth of the component carrier on which it is located, or determined by the bandwidth on the component carrier on which it is located for PUSCH discontinuous resource allocation.

The total number of RGB available for allocation to the user equipment determines the overhead of resource representation signalling.

Furthermore, the invention also improves the mode of sending the resource allocation result to the user equipment, saves the signaling overhead as much as possible, so that the signaling overhead of the discontinuous resource allocation is the same as or similar to the signaling overhead of the continuous resource allocation, thereby reducing the blind detection times of the user equipment for receiving the PDCCH.

In an embodiment, when the base station sends the resource allocation result to the user equipment, 2 fields may be used in the uplink scheduling grant signaling to carry the length information and the location information of the 2 clusters, where one field carries the location information of the 2 clusters, and another field carries the length information of the 2 clusters, and then the uplink scheduling grant signaling is sent to the user equipment. The specific implementation can be as follows:

the present embodiment provides several ways for the base station to use a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling:

(1) the base station may allocate 2 clusters with equal length to the ue, that is, 2 clusters contain equal number of RBGs or RBs. The base station may bear the length information of one cluster included in the preset information in the field in the uplink scheduling grant signaling. And after receiving the uplink scheduling authorization signaling, the user equipment analyzes the length information of the clusters contained in the uplink scheduling authorization signaling to obtain the length information of 2 equal clusters distributed to the user equipment.

For example, if the size of the cluster defined by the base station is 1-8 RBGs, a field (000-111) occupying 3bits in the uplink scheduling grant signaling needs to indicate the number of RBGs included in the 2 clusters with the same length.

(2) The preset information also comprises length information of another cluster. The base station may define respective lengths of the 2 clusters. The base station may bear the length information of each of the 2 clusters included in the preset information in the field in the uplink scheduling grant signaling. And after receiving the uplink scheduling authorization signaling, the user equipment analyzes the uplink scheduling authorization signaling to obtain the length information of 2 clusters contained in the uplink scheduling authorization signaling.

For example, if the size of a cluster defined by the base station is 1-4 RBGs, a field (00-11) occupying 2bits in the uplink scheduling grant signaling needs to indicate the number of RBGs included in the 2 clusters respectively.

(3) The preset information also comprises length information of another cluster and the corresponding relation between the length information of 2 clusters and an associated serial number. The base station may bear, according to the length information of each of the 2 clusters included in the preset information and the correspondence, the associated sequence numbers corresponding to the length information of the 2 clusters in the field in the uplink scheduling grant signaling. And after receiving the uplink scheduling authorization signaling, the user equipment analyzes the associated sequence number contained in the uplink scheduling authorization signaling, and obtains the length information of 2 clusters allocated to the user equipment according to the corresponding relation between the length of the 2 clusters and the associated sequence number configured in advance.

For example, the correspondence relationship between the length of each of the 2 clusters (the cluster length is represented by the number of RBGs included in the cluster in table 3) and the association number can be shown in table 3, with the cluster size being limited to 1 to 4 RBGs.

TABLE 3LTE System Bandwidth

Index	Size of Cluster 1 (number of RBGs included) Cluster size (# o)fRBG)	Cluster size 2 (number of RBGs included) Cluster size (# ofRBG)
			0000	1	1
0001	1	2
			0010	2	1
0011	2	2
			0100	1	3

Index	Cluster size 1 (number of RBGs included) Cluster size (# ofRBG)	Cluster size 2 (number of RBGs included) Cluster size (# ofRBG)
			0101	3	1
0110	1	4
			0111	4	1
1000	3	3
			1001	2	3
1010	3	2
			1011	4	4
1100	2	4
			1101	4	2
1110	3	4
			1111	4	3

(4) The preset information also comprises the length ratio of another cluster to the cluster. The base station may be a ratio defining a length of 1 of the 2 clusters and defining a length of the 2 clusters. The base station may be configured to load the length information of 1 cluster and the ratio of the lengths of the 2 clusters contained in the preset information into the field in the uplink scheduling grant signaling. After receiving the uplink scheduling authorization signaling, the user equipment analyzes ratio information contained in the uplink scheduling authorization signaling and the length of 1 cluster, and calculates the length of another cluster according to the ratio information.

For example, the size of the 1 st cluster may be defined as 1-4 RBGs, and the ratio of the size of the 2 nd cluster to the size of the 1 st cluster may be defined as {0.5, 1, 1.5, 2 }. In the uplink scheduling authorization signaling, the size of the 1 st cluster in the 2 cluster is indicated by using the 2bits field, and the ratio of the size of the 2 nd cluster in the 2 cluster to the size of the 1 st cluster is indicated by using the 2bits field. The size of the 2 nd cluster is the result of the operation of rounding up or rounding down the size of the 1 st cluster multiplied by the ratio of the size of the 2 nd cluster to the size of the 1 st cluster.

The base station uses a field to carry the location information of the 2 clusters in the uplink scheduling grant signaling, including: the base station may carry location information of the 2 clusters in an RIV. Specifically, the base station calculates a resource indication amount (RIV) according to a tree representation method by using a starting position or a terminating position of a first cluster allocated to the user equipment as a starting position and a starting position or a terminating position of a second cluster as a terminating position, and then loads the RIV in the field in the uplink scheduling grant signaling.

After receiving the uplink scheduling grant signaling, the user equipment may obtain the starting positions and/or the ending positions of the 2 clusters allocated to the user equipment by analyzing the RIV contained in the uplink scheduling grant signaling.

The present embodiment provides herein several ways of carrying the location information of the 2 clusters in an RIV:

(1) carry 2 cluster start position with RIV

Specifically, the starting position RBG of the 1 st cluster in the 2 clusters is indicated_START，1And 2 relative distance L of cluster_CRBsWherein, RBG_START，1Index of starting RBG of 1 st cluster in 2 clusters, L_CRBsThe index difference of the starting RBGs of the 2 nd cluster and the 1 st cluster in the 2 nd cluster is added with 1, i.e.

L_CRBs＝RBG_START，2-RBG_START，1+1

Wherein, RBG_START，2For the index of the starting RBG of cluster 2 of the 2 nd cluster, RBG_START，2＞RBG_START，1。

RIV was calculated as follows

If it is not

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},1}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(N_{\mathrm{RBG}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RBG}}^{\mathrm{UL}}-1-{\mathrm{RBG}}_{\mathrm{START},1})$

Wherein,the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in one component carrier is represented, and the indexes of the RBGs are ordered to be 0, 1 according to ascending or descending frequency.

(2) End position of carrying 2 clusters with RIV

Specifically, the end position RBG of the 1 st cluster in the 2 clusters is indicated_END，1And 2 relative distance L of cluster_CRBsWherein, RBG_END，1Index of terminating RBG for 1 st cluster in 2 clusters, L_CRBsThe index difference of the terminating RBGs of the 2 nd cluster and the 1 st cluster in the 2 nd cluster is added with 1, that is

L_CRBs＝RBG_END，2-RBG_END，1+1

Wherein, RBG_END，2For the index of the terminating RBG of cluster 2 in cluster 2, RBG_END，2＞RBG_END，1。

RIV was calculated as follows

If it is not

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{END},1}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(N_{\mathrm{RBG}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RBG}}^{\mathrm{UL}}-1-{\mathrm{RBG}}_{\mathrm{END},1})$

Wherein,

the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in one component carrier is represented, and the indexes of the RBGs are ordered to be 0, 1 according to ascending or descending frequency.

(3) Loading the starting position of the 1 st cluster and the ending position of the 2 nd cluster in the 2 nd cluster with RIV

Specifically, the starting position RBG of the 1 st cluster in the 2 clusters is indicated_END，1And 2 relative distance L of cluster_CRBsWherein, RBG_START，1Index of starting RBG of 1 st cluster in 2 clusters, L_CRBsAdding 1 to the index difference between the terminating RBG of the 2 nd cluster in the 2 nd cluster and the starting RBG of the 1 st cluster, namely

L_CRBs＝RBG_END，2-RBG_START，1+1

Wherein, RBG_END，2For the index of the terminating RBG of cluster 2 in cluster 2, RBG_END，2＞RBG_START，1。

RIV was calculated as follows

If it is not

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},1}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(N_{\mathrm{RBG}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RBG}}^{\mathrm{UL}}-1-{\mathrm{RBG}}_{\mathrm{START},1})$

Wherein,the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in one component carrier is represented, and the indexes of the RBGs are ordered to be 0, 1 according to ascending or descending frequency.

(4) Loading the end position of the 1 st cluster and the start position of the 2 nd cluster in the 2 nd cluster with RIV

Specifically, the end position RBG of the 1 st cluster in the 2 clusters is indicated_END，1And 2 relative distance L of cluster_CRBsWherein, RBG_END，1Index of terminating RBG for 1 st cluster in 2 clusters, L_CRBsAdding 1 to the index difference of the starting RBG of the 2 nd cluster and the ending RBG of the 1 st cluster in the 2 nd cluster, namely

L_CRBs＝RBG_END，2-RBG_END，1+1

Wherein, RBG_START，2For the index of the starting RBG of cluster 2 of the 2 nd cluster, RBG_START，2＞RBG_END，1。

RIV was calculated as follows

If it is not

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{END},1}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(N_{\mathrm{RBG}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RBG}}^{\mathrm{UL}}-1-{\mathrm{RBG}}_{\mathrm{END},1})$

Wherein,

the number of RBGs corresponding to the bandwidth used for PUSCH discontinuous resource allocation in one component carrier is represented, and the indexes of the RBGs are ordered to be 0, 1 according to ascending or descending frequency.

Wherein, the signaling overhead required by RIV to carry the position information of the 2 clusters is

In another embodiment, when the base station sends the resource allocation result to the user equipment, 2 fields may be used in the uplink scheduling grant signaling to carry the length information and the location information of the 2 clusters, where the length information and the location information of one cluster are carried by one of the fields, the ratio of the length of another cluster to the cluster is carried by another field, and the distance information between the another cluster and the cluster, and then the uplink scheduling grant signaling is sent to the user equipment. The specific implementation can be as follows:

the base station may use a field to carry the location information and the length information of one of the clusters in the uplink scheduling grant signaling, where the field may include: and the base station calculates the resource indication quantity (RIV) of the cluster according to the position information and the length information of the cluster, and loads the RIV of the cluster in the field.

The distance of the other cluster from the cluster may be equal to the difference between the start position of the other cluster and the cluster, or the difference between the end positions of the other cluster and the cluster, or the difference between the start position of the other cluster and the end position of the cluster. The start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Preferably, the distance between the cluster and the other cluster can be set to be equal to the minimum value of the 4 position difference values, so as to further save the signaling overhead.

After receiving the uplink scheduling authorization signaling, the user equipment analyzes to obtain the RIV of one cluster, the ratio of the length of the other cluster to the cluster and the distance between the other cluster and the cluster, obtains the position information and the length information of the cluster according to the RIV of the cluster, and calculates to obtain the position and the length of the other cluster according to the obtained position information and the length information of the cluster, the ratio of the length of the other cluster to the cluster and the distance between the other cluster and the cluster.

Wherein the calculating, by the base station according to the position and the length of a cluster among the 2 clusters allocated to the user equipment, the RIV according to a tree representation method includes:

assume that the RIV indicates the starting position RBG of cluster 1 in cluster 2_START，1And length L_CRBsWherein, RBG_START，1Index of starting RBG of 1 st cluster in 2 clusters, L_CRBsFor the number of RBGs contained in cluster 1 of cluster 2, RIV is calculated as follows

If it is not

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},1}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(N_{\mathrm{RBG}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RBG}}^{\mathrm{UL}}-1-{\mathrm{RBG}}_{\mathrm{START},1})$

Wherein the distance between the other cluster and the cluster, i.e. the distance L between the 2 nd cluster and the 1 st cluster_CRBsThe index difference between the starting RBG of the 2 nd cluster in the 2 nd cluster and the ending RBG of the 1 st cluster is used for counting the number of RBGs corresponding to the bandwidth for distributing the PUSCH discontinuous resources in the component carrier wave where the RBGs are positionedThe mould is taken out of the mould,

namely, it is

$L_{\mathrm{CRBs}}=({\mathrm{RBG}}_{\mathrm{START},2}-{\mathrm{RBG}}_{\mathrm{END},1})\mathrm{mod}{N}_{\mathrm{RBG}}^{\mathrm{UL}}$

Or

Subtracting 1 from the index difference of the starting RBG of the 2 nd cluster and the ending RBG of the 1 st cluster in the 2 nd cluster, and then counting the number of RBGs corresponding to the bandwidth for distributing the PUSCH discontinuous resources in the component carrier wave where the RBG is positioned

Taking the mold, i.e.

$L_{\mathrm{CRBs}}=({\mathrm{RBG}}_{\mathrm{START},2}-{\mathrm{RBG}}_{\mathrm{END},1}-1)\mathrm{mod}{N}_{\mathrm{RBG}}^{\mathrm{UL}}$

Wherein, RBG_START，2Is an index of a starting RBG of the 2 nd cluster, RBG_END，1For the index of the terminating RBG of cluster 1, RBG_START，2＞RBG_END，1。

Assume that the RIV indicates the starting position RBG of cluster 2 in cluster 2_START，2And length L_CRBsWherein, RBG_START，2Index of starting RBG of 2 nd cluster in 2 clusters, L_CRBsFor the number of RBGs contained in cluster 2 of cluster 2, RIV is calculated as follows

If it is not

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},2}$

Otherwise

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(N_{\mathrm{RBG}}^{\mathrm{UL}}-L_{\mathrm{CRBs}}+1)+(N_{\mathrm{RBG}}^{\mathrm{UL}}-1-{\mathrm{RBG}}_{\mathrm{START},2})$

Wherein the distance from the other cluster to the cluster, i.e. the relative distance L between the 1 st cluster and the 2 nd cluster_CRBsMeans that

The index difference between the starting RBG of the 1 st cluster in the 2 nd cluster and the ending RBG of the 2 nd cluster, and the number of RBGs corresponding to the bandwidth for distributing the PUSCH discontinuous resources in the component carrier wave where the RBGs are located

The mould is taken out of the mould,

namely, it is

$L_{\mathrm{CRBs}}=({\mathrm{RBG}}_{\mathrm{START},1}-{\mathrm{RBG}}_{\mathrm{END},2})\mathrm{mod}{N}_{\mathrm{RBG}}^{\mathrm{UL}}$

Or

Subtracting 1 from the index difference of the starting RBG of the 2 nd cluster and the ending RBG of the 1 st cluster in the 2 nd cluster, and then counting the number of RBGs corresponding to the bandwidth for distributing the PUSCH discontinuous resources in the component carrier wave where the RBG is positioned

Taking the mold, i.e.

$L_{\mathrm{CRBs}}=({\mathrm{RBG}}_{\mathrm{START},1}-{\mathrm{RBG}}_{\mathrm{END},2}-1)\mathrm{mod}{N}_{\mathrm{RBG}}^{\mathrm{UL}}$

Wherein, RBG_START，1Is an index of a starting RBG of the 1 st cluster, RBG_END，2For the index of the terminating RBG of cluster 2, RBG_START，1＜RBG_END，2。

A specific example will be given below to illustrate an implementation manner in which the base station provided in the above embodiment uses an RIV to carry the position and length of a cluster in 2 clusters allocated to the user equipment, so as to send the ratio of the RIV of the cluster, another cluster, and the length of the cluster, and the distance between the another cluster and the cluster to the user equipment in the uplink scheduling grant signaling to send the resource allocation result to the user equipment.

For example, the ratio of the sizes of the 2 clusters is defined as {0.5, 1, 1.5, 2}, and the distance of the 2 clusters is defined as 2 to 5 RBGs (or 1 to 4 RBGs). The ratio of the sizes of the 2 clusters is indicated by a 2bits field in the uplink scheduling grant signaling. The size of the other cluster is rounded up or rounded down by the ratio of the size of the cluster indicated by the RIV multiplied by the size of the 2 clusters. And indicating the distance of the 2 clusters through a 2bits field in the uplink scheduling authorization signaling, and calculating the position of the other cluster according to the position of the cluster indicated by the RIV.

Preferably, in the above embodiment, the base station may define that 2 clusters with equal length are allocated to the ue, that is, 2 clusters contain equal number of RBGs, and define a distance of 2 clusters. The base station may use 2 fields to carry the length information and the location information of the 2 clusters in uplink scheduling grant signaling, including carrying the location information and the length information of one cluster in one field and carrying the distance information between another cluster and the cluster in another field, and then send the uplink scheduling grant signaling to the user equipment. And after receiving the uplink scheduling authorization signaling, the user equipment analyzes the distance of 2 clusters contained in the uplink scheduling authorization signaling so as to calculate the position of another cluster.

For example, 2 clusters are defined at a distance of 2-17 RBGs (or 1-16 RBGs). And indicating the distance of the 2 clusters through a 4bits field in the uplink scheduling authorization signaling, and calculating the position of the other cluster according to the position of the cluster indicated by the RIV. The size of the other cluster is the size of the cluster indicated by the RIV.

Preferably, for the 2 above embodiments, the length of the 2 clusters allocated by the base station to the user equipment, and/or the ratio of the lengths of the 2 clusters defined by the base station, and/or the distance of the 2 clusters defined by the base station is determined according to the system bandwidth of the component carrier, or according to the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the base station is located, and/or the size of the RBG configured by the system. Different component carrier system bandwidths, or different bandwidths for PUSCH discontinuous resource allocation, and/or different RBG sizes, the above parameters have different sets of values.

For example, the number of RBs corresponding to the system bandwidth of one component carrier is

If the system configures 4 RBGs, the range of values of the sizes of 2 clusters limited by the base station is 1-16 RBGs; if the size of the RBG configured by the system is 3RBs, the value range of the size of 2 clusters limited by the base station is 1-32 RBGs;

or, the number of RBs corresponding to the system bandwidth of one component carrier is

The range of the distance of 2 clusters limited by the base station is 1-16 RBGs; the number of RBs corresponding to the system bandwidth of one component carrier is

The distance of 2 clusters limited by the base station ranges from 1 RBG to 8 RBG;

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

Wherein

The number of RBs corresponding to the system bandwidth of one component carrier. If the size of the resource block group is P RBs, then

Wherein, if

The size of each RBG is P; if it is not

Then is frontThe size of one RBG is P, and the size of the last 1 RBG is P

Is known to the base station and can inform the user equipment through System Information (System Information) or will be associated with the user equipment through the System Information

The related parameters are sent to the user equipment, and the user equipment obtains the related parameters configured according to other system information

In order to implement the foregoing method, an embodiment of the present invention further provides a base station, which is applied to PUSCH discontinuous resource allocation in an LTE-a system, and as shown in fig. 9, the base station includes a resource allocation module and a transmission module, where:

the resource allocation module is used for allocating resources to a PUSCH of a user equipment on a component carrier wave by adopting a discontinuous resource allocation mode, and comprises the steps of allocating 2 discontinuous clusters to the user equipment according to preset information, wherein the preset information at least comprises length information of one cluster; sending the resource allocation result to the sending module;

and the sending module is used for receiving the resource allocation result sent by the resource allocation module and sending the resource allocation result to the user equipment.

Further, the resource allocation module represents the length of the cluster by the number of Resource Blocks (RBs) or Resource Block Groups (RBGs) included in the cluster.

Further, the resource allocation result includes length information and location information of 2 clusters allocated for the PUSCH of the user equipment.

Further, the resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, including using one field to carry the location information of the 2 clusters and using another field to carry the length information of the 2 clusters, and then sends the uplink scheduling grant signaling to the sending module. The sending module is used for sending the uplink scheduling authorization signaling to user equipment.

Further, the resource allocation module is configured to allocate 2 clusters with equal length to the ue. The resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length information of one cluster contained in the preset information into the field.

Further, the preset information also includes length information of another cluster. The resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length information of each of the 2 clusters contained in the preset information into the field.

Further, the preset information further includes length information of another cluster, and a corresponding relationship between the length information of 2 clusters and an associated sequence number. The resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the associated sequence numbers corresponding to the length information of the 2 clusters into the field according to the respective length information of the 2 clusters contained in the preset information and the corresponding relation.

Further, the preset information further includes a length ratio of another cluster to the cluster. The resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length ratio of the 2 clusters contained in the preset information and the length information of 1 cluster in the field.

Further, the resource allocation module uses a field to carry the location information of the 2 clusters in the uplink scheduling grant signaling, including:

carrying the starting position and/or the ending position of the 2 clusters by a Resource Indicator Value (RIV), comprising: the base station calculates a resource indication amount (RIV) according to a tree representation method by taking the starting position or the ending position of a first cluster in the 2 clusters allocated to the user equipment as a starting position and taking the starting position or the ending position of a second cluster in the 2 clusters allocated to the user equipment as an ending position; and loading the RIV in the field in the uplink scheduling grant signaling;

the starting position of the first cluster is smaller than the ending position of the first cluster, the starting position of the second cluster is smaller than the ending position of the second cluster, and the ending position of the first cluster is smaller than the starting position of the second cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, and includes using one of the fields to carry the location information and the length information of one of the clusters, using another of the fields to carry a ratio of another cluster to the length of the cluster, and distance information of the another cluster to the cluster.

Further, the resource allocation module uses a field to carry the location information and the length information of one of the clusters in the uplink scheduling grant signaling, and includes: and calculating the resource indication quantity (RIV) of the cluster according to the position information and the length information of the cluster, and loading the RIV of the cluster in the field. The distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the resource allocation module allocates 2 clusters with equal length to the ue. The resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, and includes using one field to carry the location information and the length information of one cluster and using another field to carry the distance information between another cluster and the cluster.

Further, the step of using a field to carry the location information and the length information of one of the clusters in the uplink scheduling grant signaling by the resource allocation module includes: and calculating the resource indication quantity (RIV) of the cluster according to the position information and the length information of the cluster, and loading the RIV of the cluster in the field. The distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

Further, the RBG comprises a plurality of continuous RBs. The number of RBs contained in the RBG is configured by high-layer signaling, or the number of RBs contained in the RBG is determined by the system bandwidth of the component carrier where the RBG is located, or the number of RBs contained in the RBG is determined by the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the RBG is located.

Further, the total number of RGB available for allocation to the user equipment is configured by higher layer signaling, or determined by the system bandwidth of the component carrier on which the user equipment is located, or determined by the bandwidth used for PUSCH discontinuous resource allocation on the component carrier on which the user equipment is located.

Several specific application examples using the resource allocation method provided by the present invention are given below.

Application example 1

In the LTE-a system, the number of RBGs corresponding to a bandwidth range of one component carrier for PUSCH discontinuous resource allocation is assumed to be 25. The indices of the 25 RBGs are 0, 1, 24 in ascending or descending order of frequency.

Suppose that a base station schedules a user equipment to send a PUSCH (physical uplink shared channel) adopting discontinuous resource allocation on the component carrier, 2 clusters (a 1 st cluster and a 2 nd cluster) are divided on a frequency domain, the sizes of the 2 clusters are limited to be equal, and the size of each cluster is limited to be 1-16 RBGs. Starting position RBG of 1 st cluster_START，1Starting position RBG of the 2 nd cluster as 1_START，2The cluster size is 7 RBGs, 11.

The base station indicates the starting position of the 2 clusters by a resource indication amount RIV. RIV indicates by tree representation method, and the signaling overhead required by RIV is

Specifically, the starting position RBG of the 1 st cluster in the 2 clusters is indicated_START，1And 2 relative distance L of cluster_CRBs，

L_CRBs＝RBG_START，2-RBG_START，1+1＝11

The RIV is calculated as follows:

because of the fact that

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},1}$

$=251={\left(011111011\right)}_2$

The base station indicates the size of the cluster through signaling, and limits the size of the cluster to be 1-16 RBGs, then the signaling indicating the size of the cluster is 4bits, and the corresponding value is 0000-1111. And if the size of the 2 clusters is 7 RBGs, the signaling is 0110.

The base station includes the resource indication amount RIV (9bits) and the signaling (4bits) indicating the size of the cluster in the uplink scheduling authorization signaling sent to the user equipment and used for scheduling the user equipment to send the PUSCH adopting the discontinuous resource allocation on the component carrier.

In the uplink scheduling grant signaling, the resource allocation domain is divided into two parts, the first part is the resource indication amount RIV, and the second part is the signaling indicating the size of the cluster.

After receiving the uplink scheduling authorization signaling, the user equipment obtains the starting position of 2 clusters allocated by the base station according to the resource indication amount RIV: starting position RBG of 1 st cluster_START，1Starting position RBG of the 2 nd cluster as 1_START，1＝11；

According to the signaling indicating the size of the cluster, the size of the cluster is obtained to be 7 RBGs.

The user equipment knows that the channel resource allocation condition of the PUSCH which adopts discontinuous resource allocation and is scheduled on the component carrier by the uplink scheduling grant signaling is as follows:

starting position RBG of 1 st cluster _START，11, end position RBG_END，17; starting position RBG of 2 nd cluster_START，211, end position RBG_END，217; the cluster size is 7 RBGs.

Application example two

In the LTE-a system, the number of RBGs corresponding to a bandwidth range for PUSCH discontinuous resource allocation in one component carrier is assumed to be 19. The indices of the 19 RBGs are 0, 1, 18 in ascending or descending order of frequency.

Suppose that the base station schedules a certain user equipment to transmit the PUSCH allocated with the discontinuous resources on the component carrier, and the PUSCH is divided into 2 clusters (cluster 1 and cluster 2) in the frequency domain. Starting position RBG of 1 st cluster_START，1End position RBG ═ 7_END，1Cluster size is 3 RBGs as 9; starting position RBG of 2 nd cluster_START，213, finallyStop position RBG_END，2The cluster size is 1 RBG, 13.

The base station indicates the starting position of the 1 st cluster and the ending position of the 2 nd cluster in the 2 nd cluster through a resource indication amount RIV. RIV indicates by tree representation method, and the signaling overhead required by RIV is

Specifically, the starting position RBG of the 1 st cluster in the 2 clusters is indicated_START，1And 2 relative distance L of cluster_CRBs，

L_CRBs＝RBG_END，2-RBG_START，1+1＝7

The RIV is calculated as follows:

because of the fact that

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},1}$

$=121={\left(01111001\right)}_2$

The base station indicates the size of 2 clusters through signaling respectively, and limits the size of the clusters to be 1-4 RBGs, then the signaling indicating the size of each cluster is 2bits, the corresponding value is 00-11, and 4bits are needed for indicating the size of 2 clusters respectively. And if the size of the 1 st cluster is 3 RBGs, the signaling is 10. And if the size of the 2 nd cluster is 1 RBG, the signaling is 00.

Or,

the base station jointly indicates the size of the 2 clusters through signaling, and the size of the clusters is limited to 1-4 RBGs, and as shown in Table 3, the joint indication of the size of the 2 clusters needs 4 bits. And if the size of the 1 st cluster is 3 RBGs, and the size of the 2 nd cluster is 1 RBG, the signaling is 0101.

Or,

the base station indicates the size of the 1 st cluster in the 2 clusters and the ratio of the size of the 2 nd cluster in the 2 nd cluster to the size of the 1 st cluster through signaling, the size of the 1 st cluster is limited to 1-4 RBGs, and the ratio of the size of the 2 nd cluster to the size of the 1 st cluster is limited to {0.5, 1, 1.5, 2 }. The signaling indicating the size of the 1 st cluster is 2bits and the signaling indicating the ratio of the size of the 2 nd cluster to the size of the 1 st cluster is 2 bits.

If the size of the 1 st cluster is 3 RBGs, the signaling indicating the size of the 1 st cluster is 10;

the size of the 2 nd cluster is 1 RBG, the ratio of the size of the 2 nd cluster to the size of the 1 st cluster is 1/3, and the quantization is 0.5, then the signaling indicating the ratio of the size of the 2 nd cluster to the size of the 1 st cluster is 00.

The base station includes the resource indication amount RIV (8bits) and the signaling (4bits) indicating the size of the 2 clusters in the uplink scheduling authorization signaling which is sent to the user equipment and used for scheduling the user equipment to send the PUSCH which adopts the discontinuous resource allocation on the component carrier.

In the uplink scheduling grant signaling, the resource allocation domain is divided into two parts, the first part is the resource indication amount RIV, and the second part is the signaling indicating the size of the cluster.

After receiving the uplink scheduling authorization signaling, the user equipment obtains the starting position of the 1 st cluster and the ending position of the 2 nd cluster in the 2 nd cluster allocated by the base station according to the resource indication amount RIV: start bit of cluster 1RBG (radial basis function)_START，17, end position RBG of cluster 2_START，1＝13；

According to the signaling indicating the size of the cluster, the size of the 1 st cluster is 3 RBGs, and the size of the 2 nd cluster is 1 RBG.

The user equipment knows that the channel resource allocation condition of the PUSCH which adopts discontinuous resource allocation and is scheduled on the component carrier by the uplink scheduling grant signaling is as follows:

starting position RBG of 1 st cluster_START，1End position RBG ═ 7_END，1Cluster size is 3 RBGs as 9; starting position RBG of 2 nd cluster_START，213, end position RBG_END，2The cluster size is 1 RBG, 13.

Application example three

In the LTE-a system, the number of RBGs corresponding to a bandwidth range for PUSCH discontinuous resource allocation in one component carrier is assumed to be 17. The indices of the 17 RBGs are 0, 1, 16 in ascending or descending order of frequency.

Suppose that the base station schedules a certain user equipment to transmit the PUSCH allocated with the discontinuous resources on the component carrier, and the PUSCH is divided into 2 clusters (cluster 1 and cluster 2) in the frequency domain. Starting position RBG of 1 st cluster_START，14, end position RBG_END，1Cluster size is 3 RBGs as 6; starting position RBG of 2 nd cluster_START，210, end position RBG_END，2The cluster size is 6 RBGs 15.

The base station indicates the position of cluster 1 in cluster 2 by a resource indication amount RIV. RIV indicates by tree representation method, and the signaling overhead required by RIV is

Specifically, the starting position RBG of the 1 st cluster in the 2 clusters is indicated_START，1And length L_CRBs，

L_CRBs＝RBG_END，1-RBG_START，1+1＝3

The RIV is calculated as follows:

because of the fact that

$\mathrm{RIV}=N_{\mathrm{RBG}}^{\mathrm{UL}}(L_{\mathrm{CRBs}}-1)+{\mathrm{RBG}}_{\mathrm{START},1}$

$=38={\left(00100110\right)}_2$

The base station respectively indicates the size and the position of the 2 nd cluster in the 2 clusters through signaling:

defining the ratio of the size of the 2 nd cluster to the size of the 1 st cluster to belong to {0.5, 1, 1.5, 2}, and defining the relative distance between the 2 nd cluster and the 1 st cluster to be 1-4 RBGs; and indicating the ratio of the size of the 2 nd cluster to the size of the 1 st cluster in the 2 nd cluster through 2bits signaling, and indicating the relative distance between the 2 nd cluster and the 1 st cluster through the 2bits signaling.

Wherein the relative distance L between the 2 nd cluster and the 1 st cluster_CRBsMeans that the index difference between the starting RBG of the 2 nd cluster and the ending RBG of the 1 st cluster is further reduced by 1, i.e. the

L_CRBs＝RBG_START，2-RBG_END，1-1

The size of the 1 st cluster is 3 RBGs, the size of the 2 nd cluster is 6 RBGs, the ratio of the size of the 2 nd cluster to the size of the 1 st cluster is 2, and if the quantization is 2, the signaling indicating the ratio of the size of the 2 nd cluster to the size of the 1 st cluster is 11;

the relative distance L between the 2 nd cluster and the 1 st cluster_CRBsThe signaling indicating the relative distance of the 2 nd cluster from the 1 st cluster is 10 ═ 3.

The base station includes the resource indication amount RIV (8bits) and the signaling (4bits) indicating the size and position of the 2 nd cluster in the uplink scheduling authorization signaling which is sent to the user equipment and used for scheduling the user equipment to send the PUSCH adopting the discontinuous resource allocation on the component carrier.

In the uplink scheduling grant signaling, the resource allocation domain is divided into two parts, the first part is the resource indication amount RIV, and the second part is the signaling indicating the size and position of the 2 nd cluster.

After receiving the uplink scheduling authorization signaling, the user equipment obtains the starting position and the ending position of the 1 st cluster in the 2 clusters allocated by the base station according to the resource indication amount RIV: starting position RBG of 1 st cluster_START，14, end position RBG_START，1＝6；

According to the signaling indicating the size and the position of the 2 nd cluster, the size of the 2 nd cluster is 6 RBGs, and the relative distance between the 2 nd cluster and the 1 st cluster is 3 RBGs.

The user equipment knows that the channel resource allocation condition of the PUSCH which adopts discontinuous resource allocation and is scheduled on the component carrier by the uplink scheduling grant signaling is as follows:

starting position RBG of 1 st cluster_START，14, end position RBG_END，1Cluster size is 3 RBGs as 6; starting position RBG of 2 nd cluster_START，210, end position RBG_END，2The cluster size is 6 RBGs 15.

Application example four

Suppose a system band of one component carrier in an LTE-A systemNumber of widely corresponding RBs of

Then the signaling overhead for the continuous resource allocation on the component carrier is

And if the system configuration RBG size is 4RBs, the system bandwidth of the component carrier corresponds to 25 RBGs. The indices of the 25 RBGs are 0, 1, 24 in ascending or descending order of frequency.

Then the signaling overhead required for the resource indicator RIV is

Assuming that there is an additional 4bits signaling for indicating the size and/or position of the cluster, the signaling overhead of the non-contiguous resource allocation on the component carrier is

9+4＝13bits

And if the system configuration RBG size is 3RBs, the system bandwidth of the component carrier corresponds to 34 RBGs. The indices of the 34 RBGs are 0, 1, 33 in ascending or descending order of frequency.

Then the signaling overhead required for the resource indicator RIV is

Assuming that there is an additional 4bits signaling for indicating the size and/or position of the cluster, the signaling overhead of the non-contiguous resource allocation on the component carrier is

10+4＝14bits

Application example five

In an LTE-A system, the number of RBs corresponding to the system bandwidth of one component carrier is assumed to be

Then the signaling overhead for the continuous resource allocation on the component carrier is

And if the system configuration RBG size is 3RBs, the system bandwidth of the component carrier corresponds to 25 RBGs. The indices of the 25 RBGs are 0, 1, 24 in ascending or descending order of frequency.

Then the signaling overhead required for the resource indicator RIV is

Assuming that there is an additional 4bits signaling for indicating the size and/or position of the cluster, the signaling overhead of the non-contiguous resource allocation on the component carrier is

9+4＝13bits

If the size of the system configuration RBG is 4RB, the system bandwidth of the component carrier corresponds to 19 RBG. The indices of the 19 RBGs are 0, 1, 18 in ascending or descending order of frequency.

Then the signaling overhead required for the resource indicator RIV is

Assuming that an additional 6bits signaling is used to indicate the size and/or position of the cluster, the signaling overhead of the non-contiguous resource allocation on the component carrier is

8+6＝14bits

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (30)

1. A channel resource allocation method is applied to Physical Uplink Shared Channel (PUSCH) discontinuous resource allocation in an LTE-A system, and is characterized in that:

when a base station allocates resources for a PUSCH of user equipment on a component carrier wave in a discontinuous resource allocation mode, allocating 2 discontinuous clusters for the user equipment according to preset information, and then sending a resource allocation result to the user equipment;

the preset information at least includes length information of one cluster.

2. The method of claim 1, wherein:

the length of the cluster is represented by the number of Resource Blocks (RBs) or Resource Block Groups (RBGs) contained in the cluster.

3. The method of claim 1, wherein:

the base station sending the resource allocation result to the user equipment includes sending the length information and the position information of the 2 clusters to the user equipment.

4. The method of claim 3, wherein:

the base station uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling authorization signaling, wherein one field carries the position information of the 2 clusters, and the other field carries the length information of the 2 clusters, and then the uplink scheduling authorization signaling is sent to the user equipment.

5. The method of claim 4, wherein:

the base station allocates 2 clusters with equal length for the user equipment;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station loads the length information of one cluster contained in the preset information into the field.

6. The method of claim 4, wherein:

the preset information also comprises length information of another cluster;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station loads the length information of each of the 2 clusters contained in the preset information into the field.

7. The method of claim 4, wherein:

the preset information also comprises length information of another cluster and a corresponding relation between the length information of 2 clusters and an associated serial number;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station carries the associated sequence numbers corresponding to the length information of the 2 clusters in the field according to the respective length information of the 2 clusters contained in the preset information and the corresponding relation.

8. The method of claim 4, wherein:

the preset information also comprises the length ratio of another cluster to the cluster;

the base station uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, and the method comprises the following steps: and the base station loads the length ratio of the 2 clusters contained in the preset information and the length information of 1 cluster in the field.

9. The method of claim 4, wherein:

the base station uses a field to carry the location information of the 2 clusters in the uplink scheduling grant signaling, including:

the base station carries the starting position and/or the ending position of the 2 clusters by a Resource Indication Volume (RIV), and the method comprises the following steps: the base station calculates an RIV (Rich information value) according to a tree representation method, wherein the starting position or the ending position of a first cluster in 2 clusters allocated to the user equipment is the starting position, and the starting position or the ending position of a second cluster in 2 clusters allocated to the user equipment is the ending position; and loading the RIV in the field in the uplink scheduling grant signaling;

the starting position of the first cluster is smaller than the ending position of the first cluster, the starting position of the second cluster is smaller than the ending position of the second cluster, and the ending position of the first cluster is smaller than the starting position of the second cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

10. The method of claim 3, wherein:

the base station uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling grant signaling, including carrying the position information and the length information of one cluster by one field, carrying the ratio of the length of another cluster to the cluster by another field, and the distance information of the another cluster to the cluster.

11. The method of claim 10, wherein:

the base station uses a field to bear the position information and the length information of one cluster in the uplink scheduling authorization signaling, and the method comprises the following steps: the base station calculates the RIV of the cluster according to the position information and the length information of the cluster, and loads the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

12. The method of claim 3, wherein:

the base station distributes 2 clusters with equal length for the user equipment;

the base station uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling grant signaling, including carrying the position information and the length information of one cluster by one field and carrying the distance information of another cluster and the cluster by another field.

13. The method of claim 12, wherein:

the base station uses a field to bear the position information and the length information of one cluster in the uplink scheduling authorization signaling, and the method comprises the following steps: the base station calculates the RIV of the cluster according to the position information and the length information of the cluster, and loads the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

14. The method of claim 2, wherein:

the RBG comprises a plurality of continuous RBs;

the number of RBs contained in the RBG is configured by high-layer signaling, or the number of RBs contained in the RBG is determined by the system bandwidth of the component carrier where the RBG is located, or the number of RBs contained in the RBG is determined by the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the RBG is located.

15. The method of claim 2, wherein:

the total number of RGB available for allocation to the user equipment is configured by higher layer signaling, or determined by the system bandwidth of the component carrier on which it is located, or determined by the bandwidth on the component carrier on which it is located for PUSCH discontinuous resource allocation.

16. A base station is applied to Physical Uplink Shared Channel (PUSCH) discontinuous resource allocation in an LTE-A system, and is characterized by comprising a resource allocation module and a transmission module, wherein:

the resource allocation module is used for allocating resources to a PUSCH of a user equipment on a component carrier wave by adopting a discontinuous resource allocation mode, and comprises the steps of allocating 2 discontinuous clusters to the user equipment according to preset information, wherein the preset information at least comprises length information of one cluster; sending the resource allocation result to the sending module;

and the sending module is used for receiving the resource allocation result sent by the resource allocation module and sending the resource allocation result to the user equipment.

17. The base station of claim 16, wherein:

the resource allocation module represents the length of the cluster by the number of Resource Blocks (RBs) or Resource Block Groups (RBGs) contained in the cluster.

18. The base station of claim 16, wherein:

the resource allocation result includes length information and location information of 2 clusters allocated for the PUSCH of the user equipment.

19. The base station of claim 18, wherein:

the resource allocation module uses 2 fields to carry the length information and the position information of the 2 clusters in the uplink scheduling authorization signaling, and comprises a field for carrying the position information of the 2 clusters and another field for carrying the length information of the 2 clusters, and then sends the uplink scheduling authorization signaling to the sending module;

the sending module is used for sending the uplink scheduling authorization signaling to user equipment.

20. The base station of claim 19, wherein:

the resource allocation module is used for allocating 2 clusters with equal length for the user equipment;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length information of one cluster contained in the preset information into the field.

21. The base station of claim 19, wherein:

the preset information also comprises length information of another cluster;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length information of each of the 2 clusters contained in the preset information into the field.

22. The base station of claim 19, wherein:

the preset information also comprises length information of another cluster and a corresponding relation between the length information of 2 clusters and an associated serial number;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the associated sequence numbers corresponding to the length information of the 2 clusters into the field according to the respective length information of the 2 clusters contained in the preset information and the corresponding relation.

23. The base station of claim 19, wherein:

the preset information also comprises the length ratio of another cluster to the cluster;

the resource allocation module, which uses a field to carry the length information of the 2 clusters in the uplink scheduling grant signaling, includes: and loading the length ratio of the 2 clusters contained in the preset information and the length information of 1 cluster in the field.

24. The base station of claim 19, wherein:

the resource allocation module, which uses a field to carry the location information of the 2 clusters in the uplink scheduling grant signaling, includes:

carrying the starting position and/or the ending position of the 2 clusters by a Resource Indicator Value (RIV), comprising: the base station calculates a resource indication amount (RIV) according to a tree representation method by taking the starting position or the ending position of a first cluster in the 2 clusters allocated to the user equipment as a starting position and taking the starting position or the ending position of a second cluster in the 2 clusters allocated to the user equipment as an ending position; and loading the RIV in the field in the uplink scheduling grant signaling;

the starting position of the first cluster is smaller than the ending position of the first cluster, the starting position of the second cluster is smaller than the ending position of the second cluster, and the ending position of the first cluster is smaller than the starting position of the second cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

25. The base station of claim 18, wherein:

the resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, and includes using one of the fields to carry the location information and the length information of one of the clusters, using another of the fields to carry the ratio of the length of another cluster to the cluster, and the distance information of the another cluster to the cluster.

26. The base station of claim 25, wherein:

the resource allocation module uses a field to carry the location information and the length information of one of the clusters in the uplink scheduling grant signaling, and the resource allocation module comprises: calculating Resource Indication Volume (RIV) of the cluster according to the position information and the length information of the cluster, and loading the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

27. The base station of claim 18, wherein:

the resource allocation module allocates 2 clusters with equal length to the user equipment;

the resource allocation module uses 2 fields to carry the length information and the location information of the 2 clusters in the uplink scheduling grant signaling, and includes using one field to carry the location information and the length information of one cluster and using another field to carry the distance information between another cluster and the cluster.

28. The base station of claim 27, wherein:

the resource allocation module uses a field to carry the position information and the length information of one cluster in the uplink scheduling grant signaling, and the method comprises the following steps: calculating Resource Indication Volume (RIV) of the cluster according to the position information and the length information of the cluster, and loading the RIV of the cluster in the field;

the distance from the other cluster to the cluster is equal to the difference between the starting position and/or the ending position of the other cluster and the cluster; the start positions of the first and second clusters are represented by an index of a start RBG or an index of a start RB of the corresponding cluster, and the end positions of the first and second clusters are represented by an index of an end RBG or an index of an end RB of the corresponding cluster.

29. The base station of claim 17, wherein:

the RBG comprises a plurality of continuous RBs;

the number of RBs contained in the RBG is configured by high-layer signaling, or the number of RBs contained in the RBG is determined by the system bandwidth of the component carrier where the RBG is located, or the number of RBs contained in the RBG is determined by the bandwidth used for PUSCH discontinuous resource allocation on the component carrier where the RBG is located.

30. The base station of claim 17, wherein:

the total number of RGB available for allocation to the user equipment is configured by higher layer signaling, or determined by the system bandwidth of the component carrier on which it is located, or determined by the bandwidth on the component carrier on which it is located for PUSCH discontinuous resource allocation.

Images