CN101945484A

CN101945484A - Resource allocation indicating method

Info

Publication number: CN101945484A
Application number: CN200910158859.4A
Authority: CN
Inventors: 刘向宇; 夏薇; 关艳峰; 刘颖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-07-04
Filing date: 2009-07-04
Publication date: 2011-01-12
Also published as: WO2011003305A1

Abstract

The invention discloses a resource allocation indicating method. The method comprises that: a base station transmits resource allocation information to a terminal; and the resource allocation information indicates the number and/or positions of logic resource units allocated by the base station. The method saves resource indication overhead, and is favorable for improving system spectral efficiency.

Description

Resource allocation indication method

Technical Field

The present invention relates to the field of communications, and in particular, to a resource allocation indication method.

Background

In a wireless communication system that performs centralized scheduling control by using a base station, scheduling allocation of all available resources of the system is performed by the base station, for example, a resource allocation situation when the base station performs downlink transmission, a resource situation that can be used when a terminal performs uplink transmission, and the like. In the resource allocation process, resource allocation information needs to be transmitted in the downlink, and if a reasonable and effective information generation method is not adopted to transmit data, downlink resources of the system can be wasted, and the downlink transmission efficiency of the system is reduced.

In different communication systems, the base station may use different methods, different messages or signaling for resource indication, for example, in the ieee802.16d/e downlink, for a two-dimensional time-frequency domain resource block, for a resource allocated to each user, the base station gives a plurality of information such as a time domain symbol starting point, a time domain symbol length, a frequency domain channel starting point, a frequency domain channel offset, and the like in the resource allocation control information, and the user uniquely determines the size and the position of the resource allocated to the user according to the information.

For the resource allocation indication, a resource allocation indication method based on a triangle-binary combined tree is usually adopted at present, although the overhead of the method is small, all resource allocation situations cannot be effectively indicated, that is, some allocation situations cannot be indicated, which limits the scheduling flexibility.

Disclosure of Invention

The present invention has been made in view of the problem that the current resource allocation indicating method in the related art cannot effectively indicate various resource allocation situations, and for this reason, the present invention aims to provide an improved resource allocation indicating scheme to solve the above-mentioned problem.

To achieve the above object, according to an aspect of the present invention, a resource allocation indication method is provided.

The resource allocation indicating method comprises the following steps: the base station sends resource allocation information to the terminal, the resource allocation information indicating the number and/or location of logical resource units allocated by the base station.

Preferably, if the number of the logical resource units allocated by the base station is K1, M < K1 ≦ N, and there are X possible starting positions of K1 logical resource units, the starting position indicated by the resource allocation information is one of Y possible starting positions of the X possible starting positions. Wherein, Y is less than or equal to X, M is more than 0 and less than or equal to N, and N is the maximum allocable number of logic resource units.

Preferably, if the number of the logical resource units allocated by the base station is K2, K2 ≦ M, and there are X possible starting positions of K2 logical resource units, the starting position indicated by the resource allocation information is one of the X possible starting positions, where 0 < M ≦ N, and N is the maximum number of allocable logical resource units.

Preferably, before sending the resource allocation information, the method further includes: the base station numbers the logical resource units included in all frequency partitions in a consecutive order.

Preferably, the logical resource units include distributed resource units and/or centralized resource units, and the consecutive sequential numbering of the logical resource units included in all frequency partitions includes at least one or a combination of: carrying out continuous sequence numbering on distributed resource units in all frequency partitions; the centralized resource units in all frequency partitions are numbered sequentially in succession.

Preferably, before sending the resource allocation information, the method further includes: and the base station respectively and independently carries out continuous sequential numbering on the logic resource units included in each frequency partition.

Preferably, the logical resource units include distributed resource units and/or centralized resource units, and the separately consecutive sequential numbering of the logical resource units included in the respective frequency partitions includes at least one of: the distributed resource units in each frequency partition are individually numbered in a continuous sequence; the centralized resource units in each frequency partition are individually numbered sequentially in succession.

To achieve the above object, according to another aspect of the present invention, there is provided a resource allocation indication method.

The resource allocation indicating method comprises the following steps: the base station sends resource allocation information to the terminal, wherein the resource allocation information indicates the number and/or the starting position of the logical resource units allocated by the base station.

Preferably, the set of the number of logical resource units allocable by the base station is a, B and C are subsets of a, and the union of B and C is equal to a.

Preferably, B and C satisfy one of the following conditions: the elements in B are all smaller than the elements in C.

Preferably, if the number B of the logical resource units allocated by the base station belongs to B, all bits of the resource allocation information are used for the number B of the logical resource units allocated by the base station and the starting positions of the B logical resource units; if the number C of the logical resource units allocated by the base station belongs to C, part of bits of all bits occupied by the resource allocation information indicate the number C of the logical resource units allocated by the base station, and the rest bits except the part of bits indicate the starting positions of the C logical resource units allocated by the base station.

Preferably, the logical resource units include distributed resource units and/or centralized resource units, and the separately consecutive sequential numbering of the logical resource units included in the respective frequency partitions includes at least one of: carrying out continuous sequence numbering on the distributed resource units in all the frequency partitions; the centralized resource units in all frequency partitions are numbered sequentially in succession.

Preferably, before sending the resource allocation information, the method further includes: the base station individually and sequentially numbers the logical resource units included in the respective frequency partitions.

Preferably, the logical resource units include distributed resource units and/or centralized resource units, and the individually and sequentially numbering the logical resource units included in the respective frequency partitions includes at least one or a combination of the following: the distributed resource units in each frequency partition are individually numbered in a continuous sequence; the base station individually carries out continuous sequence numbering on the centralized resource units in each frequency partition.

To achieve the above object, according to still another aspect of the present invention, a resource allocation indication method is provided.

The resource allocation indicating method comprises the following steps: and the base station sends resource allocation information to the terminal, wherein the bit number occupied by the resource allocation information is determined according to the system bandwidth.

Preferably, the system bandwidth includes a first type bandwidth, a second type bandwidth, and a W-th type bandwidth, where the number of bits occupied by the resource allocation information is B₁、B₂,... and B_WA₁、B₂,... and B_WAre partially or completely different from each other.

Preferably, B₁、B₂,... and B_WThe values of (a) are partially identical to each other means that: there is i ≠ j (1 ≦ i < j ≦ W), and B_i＝B_j。

Preferably, B₁、B₂,... and B_WThe completely different values of (A) are as follows: for any i ≠ j (i is more than or equal to 1 and less than j and less than or equal to W), B_i≠B_j。

Preferably, for any i ≠ j (1 ≦ i < j ≦ W), the number of IFFT and/or FFT points corresponding to the ith class bandwidth and the jth class bandwidth is different.

To achieve the above object, according to still another aspect of the present invention, there is provided a resource allocation indicating method.

Preferably, the logical resource units are divided into L groups, G₁，G₂，......，G_LEach group having N₁，N₂，......，N_LAnd in the resource units, part of bits in all bits of the resource allocation information indicate the group where the allocated logic resource units are located, and the rest of bits indicate the allocated logic resource units in the group.

Preferably, group G₁，G₂，......，G_LAt least two group intersections exist, wherein the at least two group intersections exist is that: the existence of i not equal to j, i is more than or equal to 1 and less than j and L, G_iAnd G_jThere is at least one identical logical resource unit; or, group G₁，G₂，......，G_LDisjoint, wherein disjoint means: for any i not equal to j, i is more than or equal to 1 and less than j and less than or equal to L, G_iAnd G_jThe logical resource units in (b) are different.

Preferably, the logical resource units allocated by the base station are not completely continuous logical resource units.

The resource allocation indicating method comprises the following steps: and the base station sends resource allocation information to the terminal, wherein the resource allocation information indicates the number and/or the starting position of the sub-bands allocated by the base station.

Preferably, the logical resource units are divided into subbands, which are divided into K groups, S₁，S₂，......，S_KEach group having N₁，N₂，......，N_KAnd in each sub-band, part of bits in all bits of the resource allocation information indicate a group where the allocated logic resource unit is located, and the rest bits indicate the sub-bands allocated in the group.

Preferably, group S₁，S₂，......，S_LAt least two group intersections exist, wherein the at least two group intersections exist is that: the existence of i not equal to j, i is more than or equal to 1 and less than or equal to j and K, S_iAnd S_jThere is at least one identical sub-band; or, group S₁，S₂，......，S_KDisjoint, wherein disjoint means: for any i not equal to j, i is more than or equal to 1 and less than j and less than or equal to K, S_iAnd S_jAre not identical.

Preferably, the sub-bands allocated by the base station are not completely contiguous sub-bands.

The invention solves the problem that the resource allocation indicating method based on the triangular-binary combined tree used in the prior art can not indicate all resource allocation conditions comprehensively, saves the resource indicating overhead and is beneficial to improving the spectrum efficiency of the system.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of logical resource units of a 5MHz bandwidth system according to an embodiment of the invention.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Features of embodiments and examples of the invention may be combined with each other if not conflicting. As described above, the currently used resource allocation indication method based on the triangular-binary combined tree cannot comprehensively indicate all resource allocation situations, and in the signaling indication scheme for wireless resource allocation provided in the embodiment of the present invention, a flexible indication manner is adopted for a commonly used allocation granularity; for less used allocation granularity, a semi-flexible indication is employed, which will be described in detail below. The method saves the resource indication overhead and is beneficial to improving the frequency spectrum efficiency of the system.

It should be noted that the resource in the embodiment of the present invention refers to an uplink resource or a downlink resource. In the following description, a CRU is a Continuous Logical Resource Unit (CLRU), a DRU is a Distributed Logical Resource Unit (DLRU), and a Subband (Subband) is composed of several (e.g. 4) continuous CRUs.

Example 1

As shown in FIG. 1, in this embodiment, a 5MHz system (using 512-point FFT) is assumed, in which there are 1 Frequency Partition (FP), FP₀There are 24 LRUs, including 12 DRUs and 12 CRUs, where the DRU logical numbers are DRUs₀～DRU₁₁。

Due to the carrier distribution characteristics of DRUs in the frequency domain, when allocating resources of corresponding DRUs, the base station usually performs continuous allocation, that is, the logical numbers of DRUs allocated to one user at a time are continuous, and in order to be able to indicate the corresponding DRU location and length, the base station uses 8 bits in each unicast basic allocation control information (such as AMAP-IE information) to indicate the allocation of the corresponding DRUs.

The base station firstly carries out FP₀A total of 12 DRUs in a particular orderNumber DRU₀，DRU₁，DRU₂，......，DRU₁₁For example, FP₀12 DRUs (i.e., FP)₀DRU of (1)₀～DRU₁₁) Number DRU₀～DRU₁₁Then, the two parameters of the initial logic number of the allocated DRU and the number of the allocated DRU are used to uniquely determine the content of the 8-bit indication signaling, for example, when a DRU is allocated to a user and the DRU is allocated₀When 8 bits are used, represented as (lower bit preceding or higher bit preceding) 0x00, when a DRU is allocated to a user, and it is allocated that DRU₁When a DRU is allocated to a user using 8 bits expressed as (lower bit before) 0x01 or (upper bit before) 0x80, and it is allocated that DRU₂When using 8-bit representation as (lower bit before) 0x40 or (upper bit before) 0x02, 2 DRUs are allocated to the user and DRUs are allocated₀、DRU₁When 2 DRUs are allocated to a user using 8-bit representation (with lower bits preceding) 0x18 or (with upper bits preceding) 0x18, and it is allocated that DRUs are allocated₁、DRU₂When 8 bits are used, expressed as (lower bit before) 0x98 or (upper bit before) 0x19, only one specific start position is taken when the number of DRUs allocated is greater than a specific value M, which is 14 in this example.

The above is arranged into a table, and when the high order bit is used, it will be shown in table 1 below:

TABLE 1

For example, in this embodiment, in order to allocate a DRU to a certain user, the base station sends an indication signaling to the user, where the 8-bit indication signaling of the DRU is 0x43, the user receives the indication signaling, and according to table 1 above, it can be obtained that the base station allocates 3 DRUs to the user, and the logical number of the DRUs starts from 9, that is, the DRUs are divided into partsThree DRUs of 9, 10, 11 are allocated, that is, the FP is allocated₀To the subscriber {9, 10, 11} th DRU.

Example 2

In the present embodiment, it is assumed that there is a 5MHz (using 512 point FFT) system,

in which there are 4 frequency partitions, i.e. FPs₀，FP₁，FP₂，FP₃Each frequency partition above has 12, 4, 4, 4 DRUs.

As described above, due to the carrier distribution characteristics of DRUs in the frequency domain, when allocating corresponding DRU resources, the base station often performs continuous allocation, that is, the logical number of a DRU allocated to one user at a time is continuous, and in order to be able to indicate the corresponding DRU location and length, the base station uses 8 bits in each unicast basic allocation control information (such as AMAP-IE) to indicate the allocation of the corresponding DRU.

The base station firstly carries out FP₀，FP₁，FP₂，FP₃A total of 24 DRUs are renumbered as DRUs in a particular order₀，DRU₁，DRU₂，......，DRU₂₂，DRU₂₃E.g. according to slave FP₀To FP₃Respectively, the FP₀12 DRUs (i.e., FP)₀DRU of (1)₀～DRU₁₁) Number DRU₀～DRU₁₁Will FP₁4 DRUs (i.e., FP)₁DRU of (1)₀～DRU₃) Number DRU₁₂～DRU₁₅Will FP₂4 DRUs (i.e., FP)₂DRU of (1)₀～DRU₃) Number DRU₁₆～DRU₁₉Will FP₃4 DRUs (i.e., FP)₃DRU of (1)₀～DRU₃) Number DRU₂₀～DRU₂₃Then, the two parameters of the initial logic number of the allocated DRU and the number of the allocated DRU are used to uniquely determine the content of the 8-bit indication signaling, for example, when a DRU is allocated to a user and the DRU is allocated₀When it is in use, makeExpressed by 8 bits as (lower order bits before or upper order bits before) 0x00, when a DRU is allocated to a user and a DRU is allocated₁When a DRU is allocated to a user using 8 bits expressed as (lower bit before) 0x01 or (upper bit before) 0x80, and it is allocated that DRU₂When using 8-bit representation as (lower bit before) 0x40 or (upper bit before) 0x02, 2 DRUs are allocated to the user and DRUs are allocated₀、DRU₁When 2 DRUs are allocated to a user using 8-bit representation (with lower bits preceding) 0x18 or (with upper bits preceding) 0x18, and it is allocated that DRUs are allocated₁、DRU₂When 8 bits are used for representation as (low bit before) 0x98 or (high bit before) 0x19,.. and so on, if 24 DRUs are allocated to a user, then there can only be one starting point at this time, encoding the 8 bit signaling as (low bit before) or 0x7f or (high bit before) 0 xfe.

When the number of distributed DRUs is larger than a certain specific value M, and the example M is 14, only one specific starting position is taken.

The above is arranged into a table, and when the high order bit is used, it will be shown in table 2 below:

TABLE 2

For example, in this embodiment, in order to allocate a DRU to a certain user, the base station sends an indication signaling to the user, where the 8-bit indication signaling of the DRU is 0x43, and the user receives the indication signaling, and according to table 2 above, it can be obtained that the base station allocates 3 DRUs to the user, and the logical numbers thereof are according to table 2 aboveStarting with 20, i.e. three DRUs are allocated 20, 21, 22, i.e. an FP is allocated₃To the subscriber {0, 1, 2} th DRU.

Example 3

In this embodiment, it is assumed that there is a 10MHz system (which uses 1024-point FFT) with 4 frequency partitions, i.e., FP₀，FP₁，FP₂，FP₃Each of the above frequency partitions has 24, 8, 8, and8 LRUs, wherein there are 24, 8, 8, and8 DRUs in the LRUs of each frequency partition, that is, all the LRUs are DRUs.

Due to the carrier distribution characteristics of DRUs in the frequency domain, when a base station allocates corresponding DRU resources, it usually performs continuous allocation, that is, the logic number of a DRU allocated to one user at a time is continuous, and in order to be able to indicate the corresponding DRU location and length, the base station uses 10 bits in each unicast basic allocation control information to indicate the allocation of the corresponding DRU. The base station firstly carries out FP₀，FP₁，FP₂，FP₃A total of 48 DRUs are renumbered as DRUs in a particular order₀，DRU₁，DRU₂，......，DRU₄₆，DRU₄₇E.g. according to slave FP₀To FP₃Respectively, the FP₀24 DRUs (i.e., FP)₀DRU of (1)₀～DRU₂₃) Number DRU₀～DRU₂₃Will FP₁8 DRUs (i.e., FP)₁DRU of (1)₀～DRU₇) Number DRU₂₄～DRU₃₁Will FP₂8 DRUs (i.e., FP)₂DRU of (1)₀～DRU₇) Number DRU₃₂～DRU₃₉Will FP₃8 DRUs (i.e., FP)₃DRU of (1)₀～DRU₇) Number DRU₄₀～DRU₄₇Then, the two parameters of the initial logic number of the distributed DRU and the number of the distributed DRU are used to uniquely determine the content of the 10-bit indication signaling, for example, when a DRU is distributed to the user and the DRU is distributed₀Using a 10-bit tableShown as (with low order bits preceding or high order bits preceding) 0x00, when a DRU is assigned to a user and is assigned₁When a user is allocated a DRU using 10 bits expressed as (lower bit before) 0x200 or (upper bit before) 0x001, and it is allocated a DRU₂When using 10 bits, expressed as (lower bit before) 0x100 or (upper bit before) 0x002, when allocating 2 DRUs to a user, and allocated are DRUs₀、DRU₁When using 10 bits expressed as (lower order bits are first) 0x030 or (upper order bits are first) 0x030, when allocating 2 DRUs to a user, and it is allocated that DRUs are₁、DRU₂When the number of allocated DRUs is greater than a certain value M, in this example, 30, only one specific start position is taken, and so on, if 48 DRUs are allocated to a user, then only one start point is possible at this time, and 10-bit signaling is encoded as (when the lower bits are previous) or 0x1ff or (when the upper bits are previous) 0x3 fe.

The above is arranged into a table, and when the high order bit is used, it will be shown in table 3 below:

TABLE 3

For example, in this example, in order to allocate a DRU to a certain user, the base station sends an indication signaling to the user, where the 10-bit indication signaling of the DRU is 0xb9, and the user receives the indication signaling, and according to table 3 above, knows that the base station allocates 4 DRUs to the user, and its logic number starts from 44, that is, 4 DRUs are allocated to {44, 45, 46, 47} for useThe user, i.e. having allocated FP₃To the user {4, 5, 6, 7} DRU.

Example 4

In this embodiment, it is assumed that there is a 20MHz system with 4 frequency partitions, i.e., FPs₀，FP₁，FP₂，FP₃The frequency partitions have 24 LRUs, and 12 DRUs, 24 DRUs, and 24 DRUs are respectively located in the LRUs of the frequency partitions.

Due to the carrier distribution characteristics of DRUs in the frequency domain, when a base station allocates corresponding DRU resources, it usually performs continuous allocation, that is, the logic number of a DRU allocated to one user at a time is continuous, and in order to be able to indicate the corresponding DRU location and length, the base station will use 12 bits in each unicast basic allocation control information to indicate the allocation of the corresponding DRU.

The base station firstly carries out FP₀，FP₁，FP₂，FP₃A total of 84 DRUs are renumbered as DRUs in a particular order₀，DRU₁，DRU₂，......，DRU₈₂，DRU₈₃E.g. according to slave FP₀To FP₃Respectively, the FP₀12 DRUs (i.e., FP)₀DRU of (1)₀～DRU₁₁) Number DRU₀～DRU₁₁Will FP₁24 DRUs (i.e., FP)₁DRU of (1)₀～DRU₂₃) Number DRU₁₂～DRU₃₅Will FP₂24 DRUs (i.e., FP)₂DRU of (1)₀～DRU₂₃) Number DRU₃₆～DRU₅₉Will FP₃24 DRUs (i.e., FP)₃DRU of (1)₀～DRU₂₄) Number DRU₆₀～DRU₈₃Then, the two parameters of the initial logic number of the distributed DRU and the number of the distributed DRUs are used for uniquely determining the content of the 12-bit indication signaling, for example, when one DRU is distributed to a user and distributed to the DRU₀Using a 12-bit representation as (low order bit in front of time or high order bit in front of time)Former time) 0x000, when one DRU is allocated to a user, and it is allocated that DRU₁When a user is allocated one DRU using 12 bits expressed as (lower bit before) 0x800 or (upper bit before) 0x001, and it is allocated that DRU₂When using 12 bits, represented as (lower bit before) 0x400 or (upper bit before) 0x002, when allocating 2 DRUs to a user, and allocated are DRUs₀、DRU₁When using 12 bits expressed as (lower bit before) 0x060 or (upper bit before) 0x060, when 2 DRUs are allocated to a user and DRUs are allocated₁、DRU₂When 12 bits are used, which are expressed as (lower bit before) 0x860 or (upper bit before) 0x 061. And so on. If a user is allocated 84 DRUs, there may only be one starting point at this time, encoding the 12-bit signaling as either (lower bit first time) 0x4ff or (upper bit first time) 0xff 2.

The above cases are collated into a table, and when the high order bits are used first, the following table 4 will be shown:

TABLE 4

For example, in this embodiment, in order to allocate a DRU to a certain user, the base station sends an indication signaling to the user, where the 12-bit indication signaling of the DRU is0xbe, the user receives the indication signaling, and it can be determined according to table 4 that the base station has allocated 2 DRUs to the user, and its logic number starts from 94, i.e. DRU {94, 95} is allocated to the user, i.e. FP is allocated₃To the user {22, 23 }.

In the process of each Resource allocation instruction in embodiments 1 to 4, in order to indicate whether a Logical Resource Unit (LRU) allocated this time is a Distributed Resource Unit (DRU) or a Centralized Resource Unit (CRU), the base station may indicate by one of the following manners:

the first method is as follows: before a specific resource allocation indication (e.g., an 8-bit indication mentioned below) is made, a dedicated one bit indicates the corresponding type, for example, a bit value of "0" indicates a DRU and a bit value of "1" indicates a CRU, or a bit value of "0" indicates a CRU and a bit value of "1" indicates a DRU.

The second method comprises the following steps: in an information type (IEType) field of resource allocation control information, such as AMAP-IE, an identity occupying several bits, such as 4 bits, is used to identify a DRU or CRU type. For example, in the information type of the resource allocation control information, binary 0b0011 is used to indicate that the current control information is the downlink basic allocation control information and is allocated as the DRU type, binary 0b0100 is used to indicate that the current control information is the downlink basic allocation control information and is allocated as the CRU type, binary 0b0101 is used to indicate that the current control information is the uplink basic allocation control information and is allocated as the DRU type, binary 0b0110 is used to indicate that the current control information is the uplink basic allocation control information and is allocated as the CRU type.

In the embodiment of the present invention, the maximum resource that can be allocated to one user by the base station is limited within a certain range in order to satisfy scheduling fairness of multiple users of the system when resource allocation is performed, which is referred to as "maximum allocation granularity", and the determination of the maximum allocation granularity may be determined according to feasibility, effectiveness, and the like of resource allocation. In the embodiments given below, according to the relationship between the allocated resources and the maximum allocation granularity, it is preferable to use a method of uniformly indicating the length and the starting position of the allocated DRU when the allocated resources are smaller than the maximum allocation granularity, and indicating the length and the starting position of the allocated DRU using different bits respectively when the allocated resources are greater than (or equal to) the maximum allocation granularity.

Example 5

In this embodiment, it is assumed that there is a 5MHz system with only 1 frequency partition FP₀There are 24 DRUs, and due to the carrier distribution characteristics of DRUs in the frequency domain, when the base station allocates resources of corresponding DRUs, it often performs continuous allocation, that is, the logic number of the DRU allocated to one user at a time is continuous.

In this embodiment, assuming that the maximum allocation granularity is 15 DRUs, it is preferable that the base station uses 7 bits in the unicast basic allocation control information unit to indicate the resource allocation information for the case that the allocated resource size does not exceed 15 DRUs. For allocation cases exceeding 15 DRUs, the extended unicast basic allocation control information element is used to indicate resource allocation information.

The base station firstly renumbers 24 DRUs as DRUs according to a certain specific sequence₀，DRU₁，DRU₂，......，DRU₂₂，DRU₂₃Then, the contents of the resource allocation indication signaling are determined by using two parameters, namely, the starting logic number of the allocated DRU and the number of the allocated DRUs.

For the case where the allocation granularity is less than 15 DRUs, 7 bits are used to represent the allocation information. For example, when a DRU is allocated to a user, and it is the DRU that is allocated₀When, 0000000 is expressed using 7 bits (the indication index of decimal expression is 0); when a DRU is allocated to a user, and the DRU is allocated₁When, 7 bits are used to represent 0000001 (decimal indication index is 1); when givingA user is assigned a DRU, and it is the DRU that is assigned₂Then, 7 bits are used to be represented as 0000010 (the indicated index in decimal representation is 2.); when 2 DRUs are allocated to a user and a DRU is allocated₀、DRU₁Using 7 bits as 0011000 (indicated index in decimal notation is 24); when 2 DRUs are allocated to a user and a DRU is allocated₁、DRU₂Using 7 bits to represent 00110001 (indicated index in decimal representation is 25); and so on, when the user is allocated 15 DRUs (DRUs)₉～DRU₂₃) The 7-bit signaling is encoded as 1110111 (indicated index in decimal notation as 119).

The above is arranged into a table, and when the high order bit is used first, it will be shown in table 5 below:

TABLE 5

For example, in this embodiment, in order to allocate a DRU with a maximum granularity not exceeding 15 to a certain user, the base station sends a basic allocation control information unit of a DRU allocation type to the user. In the control information unit, an identifier occupying several bits (for example, 4 bits) is used to identify that the allocated resource is of a DRU type, and the maximum granularity does not exceed 15 logical resource blocks. If the 7-bit indication signaling in the basic allocation control information element is 1000011 (decimal 67), the user receives the indication signaling, and the base station allocates 3 DRUs to the user according to table 5 above, and its logical number starts from 20, i.e. three DRUs of 20, 21, 22 are allocated to the user.

For the case of allocation granularity greater than 15 DRUs, 9 bits are used for representationAllocation information, wherein the first 5 bits represent the start position of allocation and the last 4 bits represent the allocation size (16-24). For example, when 16 DRUs are allocated to a user, and the DRUs are allocated₀～DRU₁₅Then, the first 4 bits 00000 indicate the starting position is DRU₀The last 4 bits 0000 indicate an allocated resource size of 16 DRUs. In this embodiment, in order to allocate a DRU with a maximum granularity exceeding 15 to a certain user, the base station sends an extended basic allocation control information unit of a DRU allocation type to the user. In the control information unit, an identifier of several bits (for example, 4 bits) is used to identify that the allocated resource is of the DRU type, and the number of allocated resources exceeds 15 logical resource blocks. Where 9 bits indicate signaling as 001000010. The user receives the indication signaling, and analyzes the first 4 bits to know the distributed unit from the 4 th DRU (DRU)₃) At the beginning, the resource size is known to be 18 DRUs after the 4 bits are analyzed.

Example 6

In this embodiment, it is assumed that there is a 10MHz system with 4 frequency partitions, i.e., FPs₀，FP₁，FP₂，FP₃Each of the frequency partitions has 24, 8, 8, and8 LRUs, wherein each of the LRUs of the frequency partitions has 24, 8, 8, and8 DRUs, i.e., all of the LRUs are DRUs.

Due to the carrier distribution characteristics of DRUs in the frequency domain, when a base station allocates resources of corresponding DRUs, continuous allocation is often performed, that is, the logic numbers of DRUs allocated to one user at a time are continuous. The base station firstly carries out FP₀，FP₁，FP₂，FP₃A total of 48 DRUs are renumbered as DRUs in a particular order₀，DRU₁，DRU₂，......，DRU₄₆，DRU₄₇E.g. according to slave FP₀To FP₃Respectively, the FP₀24 DRUs (i.e., FP)₀DRU of (1)₀～DRU₂₃) Number DRU₀～DRU₂₃Will FP₁8 DRUs (i.e., FP)₁DRU of (1)₀～DRU₇) Number DRU₂₄～DRU₃₁Will FP₂8 DRUs (i.e., FP)₂DRU of (1)₀～DRU₇) Number DRU₃₂～DRU₃₉Will FP₃8 DRUs (i.e., FP)₃DRU of (1)₀～DRU₇) Number DRU₄₀～DRU₄₇。

In this embodiment, assuming that the maximum allocation granularity is 22 DRUs, the base station uses 8 bits in the unicast basic allocation control information unit to indicate the resource allocation information for the case that the allocated resource size does not exceed 22 DRUs. For resource allocation cases exceeding 22 DRUs, the resource allocation information is indicated using an extended unicast basic allocation control information element.

Specifically, for the case where the allocation granularity is less than 22 DRUs, 8 bits are used to represent the allocation information. For example, when a DRU is allocated to a user, and it is the DRU that is allocated₀When, 8 bits are used to represent 000000000000 (decimal indication index is 0); when a DRU is allocated to a user, and the DRU is allocated₁When, 8 bits are used to represent 00000001 (decimal indication index is 1); when a DRU is allocated to a user, and the DRU is allocated₂When, 8 bits are used, represented as 00000002 (the indicated index in decimal representation is 2.); when 2 DRUs are allocated to a user and a DRU is allocated₀、DRU₁When, 8 bits are used for representation as 00110000 (indicated index in decimal representation is 48); when 2 DRUs are allocated to a user and a DRU is allocated₁、DRU₂Using 8 bits to represent 00110001 (the indication index of decimal representation is 49); and so on, when the user is allocated 22 DRUs (DRUs)₂₆～DRU₄₇) And8 bits are used for representation 11111100 (indicated index in decimal representation 252).

The above is arranged into a table, and when the high order bit is used first, it will be shown in table 6 below:

TABLE 6

For example, in this embodiment, in order to allocate a DRU with a maximum granularity not exceeding 22 to a certain user, the base station sends a basic allocation control information unit of a DRU allocation type to the user. In the control information unit, an identifier of several bits (e.g. 4 bits) is used to identify that the allocated resource is of DRU type, and the maximum granularity does not exceed 22 logical resource blocks. Wherein the 8-bit indication signaling is 10111010 (decimal 186), the user receives the indication signaling, and it can be obtained according to the above table that the base station allocates 4 DRUs to the user, and its logical number starts from 44, i.e. 4 DRUs are allocated to the user, i.e. FP is allocated to the user₃To the user {4, 5, 6, 7} DRU.

For the case of allocation granularity larger than 22 DRUs, 10 bits are used to represent allocation information, where the first 6 bits represent the start position of allocation and the last 4 bits represent the allocation size (23-48). For example, when 23 DRUs are allocated to a user, and a DRU is allocated₀～DRU₂₂Then, the first 6 bits 000000 indicate the starting position is DRU₀The last 4 bits 0000 indicate that the allocated resource size is 23 DRUs.

In this embodiment, in order to allocate a DRU with a maximum granularity exceeding 22 to a certain user, the base station sends an extended basic allocation control information unit of a DRU allocation type to the user. In the control information unit, an identifier of several bits (e.g. 4 bits) is used to identify that the allocated resource is of a DRU type, and the number of allocated resources exceeds 22 logical resource blocks. Wherein, the 10 bit indication signaling is 0000000001, the user receives the indication signaling, and the unit of knowing allocation by analyzing the first 6 bits starts from the 1 st DRU (DRU)₀) And after the analysis, the resource size is acquired by 4 bits and is 24 DRUs.

Example 7

In this embodiment, a 20MHz system is provided, with 1 frequencyRate partition FP₀The frequency partition has 96 LRUs, including 96 DRUs, and when the base station allocates resources of corresponding DRUs, due to the carrier distribution characteristics of DRUs in the frequency domain, continuous allocation is often performed, that is, the logic number of a DRU allocated to one user at a time is continuous. The base station firstly renumbers 96 DRUs as DRUs according to a certain specific sequence₀，DRU₁，DRU₂，......，DRU₉₅。

In this embodiment, assuming that the maximum allocation granularity is 44 DRUs, for the case that the allocated resource size does not exceed 44 DRUs, the base station uses 10 bits in the unicast basic allocation control information unit to indicate the resource allocation information. DRU allocations that exceed the maximum granularity indicate resource allocation information using an extended unicast basic allocation control information element.

Specifically, for the case where the allocation granularity is less than 44 DRUs, 10 bits are used to represent the allocation information, for example, when one DRU is allocated to a user and DRUs are allocated₀When a 12-bit representation is used as 0000000000 (decimal indication index is 0), when a DRU is allocated to a user and a DRU is allocated₁When a DRU is allocated to a user using 10 bits expressed as 0000000001 (decimal indication index is 1), and a DRU is allocated to the user₂When a 10-bit representation is used, 0000000010 (indicated index in decimal representation is 2), 2 DRUs are assigned to the user₀，DRU₁When using 10 bits to represent 01010001 (indicated index in decimal notation of 81), when allocating 2 DRUs to a user, and it is allocated DRUs₁，DRU₂When 10 bits are used, they are represented as 01010010 (indicated index in decimal notation as 82) using 10 bits. And so on, when the user is allocated 44 DRUs (DRUs)₅₂～DRU₉₅) Then, 10-bit signaling is coded as (indicated by the decimal index 989).

The above is arranged into a table, and when the high order bit is used first, it will be shown in table 7 below:

TABLE 7

For example, in the present embodiment, in order to allocate a DRU whose maximum granularity does not exceed 44 to a certain user, a basic allocation control information unit of a DRU allocation type is transmitted to the user. In the control information unit, an identifier occupying several bits (for example, 4 bits) is used to identify that the allocated resource is of DRU type, and the maximum granularity does not exceed 44 logical resource blocks. Wherein, the 10-bit indication signaling is 0010111010 (decimal 190), the user receives the indication signaling, and it can be obtained according to table 7 above that the base station allocates 2 DRUs to the user, and its logical number starts from 94, i.e. DRUs {94, 95} are allocated to the user.

For the case that the allocation granularity is larger than 44 DRUs, 13 bits are used to represent allocation information, wherein the first 7 bits represent the start position of allocation and the last 6 bits represent the allocation size (45-96). For example, when 45 DRUs are allocated to a user, and DRUs are allocated₀～DRU₄₄Then, the first 7 bits 0000000 indicate the starting position is DRU₀The last 6 bits 000000 indicate an allocated resource size of 45 DRUs. In this embodiment, in order to allocate a DRU with a maximum granularity exceeding 44 to a certain user, the base station sends an extended basic allocation control information unit of a DRU allocation type to the user. In the control information unit, an identifier of several bits (for example, 4 bits) is used to identify that the allocated resource is of the DRU type, and the number of allocated resources exceeds 44 logical resource blocks. Wherein, the 13-bit indication signaling is 0000010000010, the user receives the indication signaling, and the unit of learning allocation by analyzing the first 7 bits starts from the 3 rd DRU (DRU)₂) 6 bits after parsing know allocation resourcesThe source size is 47 DRUs.

Example 8

In this embodiment, it is assumed that there is a 7MHz system (which uses 1024-point FFT) with 4 frequency partitions, i.e., FP₀，FP₁，FP₂，FP₃There are 24, 8, 8, and8 LRUs for each frequency partition, wherein there are 24, 8, 8, and8 DRUs for each LRU for each frequency partition, i.e., all LRUs are DRUs.

As described above, due to the characteristic of the carrier distribution of DRUs in the frequency domain, when allocating resources of corresponding DRUs, the base station often performs continuous allocation, that is, the logical numbers of DRUs allocated to one user at a time are continuous, and in order to be able to indicate the corresponding DRU positions and lengths, the base station will use 10 bits in each unicast basic allocation control information to indicate the allocation of corresponding DRUs.

The base station firstly carries out FP₀，FP₁，FP₂，FP₃A total of 48 DRUs are renumbered as DRUs in a particular order₀，DRU₁，DRU₂，......，DRU₄₆，DRU₄₇E.g. according to slave FP₀To FP₃Respectively, the FP₀24 DRUs (i.e., FP)₀DRU of (1)₀～DRU₂₃) Number DRU₀～DRU₂₃Will FP₁8 DRUs (i.e., FP)₁DRU of (1)₀～DRU₇) Number DRU₂₄～DRU₃₁Will FP₂8 DRUs (i.e., FP)₂DRU of (1)₀～DRU₇) Number DRU₃₂～DRU₃₉Will FP₃8 DRUs (i.e., FP)₃DRU of (1)₀～DRU₇) Number DRU₄₀～DRU₄₇Then, the content of the 10-bit indication signaling is uniquely determined by using two parameters, i.e., the starting logical number of the allocated DRU and the number of the allocated DRUs.

For example, when a DRU is allocated to a user, and it is the DRU that is allocated₀When the temperature of the water is higher than the set temperature,using 10 bits as (lower bit first time or upper bit first time) 0x 00; when a DRU is allocated to a user, and the DRU is allocated₁When 10 bits are used, the bit is expressed as (lower bit is before) 0x200 or (higher bit is before) 0x 001; when a DRU is allocated to a user, and the DRU is allocated₂When 10 bits are used, it is expressed as (lower bit preceding time) 0x100 or (upper bit preceding time) 0x 002; when 2 DRUs are allocated to a user and a DRU is allocated₀、DRU₁When 10 bits are used, the bit is expressed as 0x030 (when the lower bit is ahead) or 0x030 (when the upper bit is ahead); when 2 DRUs are allocated to a user and a DRU is allocated₁、DRU₂When 10 bits are used, the bit is expressed as 0x230 (when the lower bits are first) or 0x031 (when the upper bits are first). By analogy, if a user is assigned 48 DRUs, there may only be one starting point at this time, encoding the 10-bit signaling as either (lower bit before time) 0x1ff or (upper bit before time) 0x3 fe.

The above is arranged into a table, and when the high order bit is used first, it will be shown in table 8 below:

TABLE 8

For example, in this example, in order to allocate a DRU to a user, the base station sends an indication signaling to the user, where the 10-bit indication signaling of the DRU is 0xb9, and the user receives the indication signaling, which is obtained according to the above tableThe out-base station allocates 4 DRUs to the users, and its logical number starts from 44, i.e. 4 DRUs are allocated {44, 45, 46, 47}, i.e. FP is allocated₃To the user {4, 5, 6, 7} DRU.

Example 9

In this embodiment, it is assumed that there is an 8.75MHz system (which uses 1024-point FFT) with 4 frequency partitions, i.e., FP₀，FP₁，FP₂，FP₃There are 24, 8, 8, and8 LRUs for each frequency partition, wherein there are 24, 8, 8, and8 DRUs for each LRU for each frequency partition, i.e., all LRUs are DRUs.

Due to the carrier distribution characteristics of DRUs in the frequency domain, when allocating resources of corresponding DRUs, the base station usually performs continuous allocation, that is, the logic number of a DRU allocated to one user at a time is continuous, and in order to be able to indicate the corresponding DRU position and length, the base station uses 10 bits in each unicast basic allocation control information to indicate the allocation of the corresponding DRU.

The base station firstly carries out FP₀，FP₁，FP₂，FP₃A total of 48 DRUs are renumbered as DRUs in a particular order₀，DRU₁，DRU₂，......，DRU₄₆，DRU₄₇E.g. according to slave FP₀To FP₃Respectively, the FP₀24 DRUs (i.e., FP)₀DRU of (1)₀～DRU₂₃) Number DRU₀～DRU₂₃Will FP₁8 DRUs (i.e., FP)₁DRU of (1)₀～DRU₇) Number DRU₂₄～DRU₃₁Will FP₂8 DRUs (i.e., FP)₂DRU of (1)₀～DRU₇) Number DRU₃₂～DRU₃₉Will FP₃8 DRUs (i.e., FP)₃DRU of (1)₀～DRU₇) Number DRU₄₀～DRU₄₇Then uniquely determining 10-bit indication signaling using two parameters, the starting logical number of the allocated DRU and the number of the allocated DRUThe contents.

For example, when a DRU is allocated to a user, and it is the DRU that is allocated₀When, 10 bits are used for expression (lower bit preceding time or upper bit preceding time) 0x 00; when a DRU is allocated to a user, and the DRU is allocated₁When 10 bits are used, the bit is expressed as (lower bit is before) 0x200 or (higher bit is before) 0x 001; when a DRU is allocated to a user, and the DRU is allocated₂When 2 DRUs are allocated to a user using 10 bits expressed as (lower bit preceding time) 0x100 or (upper bit preceding time) 0x002, and it is allocated that DRUs are allocated₀、DRU₁When 10 bits are used, the bit is expressed as 0x030 (when the lower bit is ahead) or 0x030 (when the upper bit is ahead); when 2 DRUs are allocated to a user and a DRU is allocated₁、DRU₂When 10 bits are used, the bit is expressed as 0x230 (when the lower bits are first) or 0x031 (when the upper bits are first). By analogy, when a user is allocated 48 DRUs, there may only be one starting point when 10 bits of signaling are encoded as either 0x1ff (with the lower bits preceding) or 0x3fe (with the upper bits preceding).

The above is arranged into a table, and when the high order bit is used first, it will be shown in the following table 9:

TABLE 9

For example, in this embodiment, in order to allocate a DRU to a certain user, the base station sends an indication signaling to the user, where the 10-bit indication signaling of the DRU is 0xb9, and the user receives the indication signaling, and according to the above table, it can be obtained that the base station allocates 4 DRUs to the user, and its logic number starts from 44, that is, allocation4 DRUs of 44, 45, 46 and 47 are allocated, namely FP is allocated₃To the user {4, 5, 6, 7} DRU.

Example 10:

For the case of an allocation granularity of less than 15 DRUs or an allocation granularity of 17 DRUs, 7 bits are used to represent the allocation information. For example, when a DRU is allocated to a user, and it is the DRU that is allocated₀When, 0000000 is expressed using 7 bits (the indication index of decimal expression is 0); when a DRU is allocated to a user, and the DRU is allocated₁When, 7 bits are used to represent 0000001 (decimal indication index is 1); when a DRU is allocated to a user, and the DRU is allocated₂Then, 7 bits are used to be represented as 0000010 (the indicated index in decimal representation is 2.); when 2 DRUs are allocated to a user and a DRU is allocated₀、DRU₁Using 7 bits as 0011000 (indicated index in decimal notation is 24); when 2 DRUs are allocated to a user and a DR is allocatedU₁、DRU₂Using 7 bits to represent 00110001 (indicated index in decimal representation is 25); and so on, when the user is allocated 15 DRUs (DRUs)₉～DRU₂₃) When 7-bit signaling is encoded as 1110111 (indicated index in decimal representation as 119), when a user is allocated 17 DRUs (DRUs)₇～DRU₂₃) The 7-bit signaling is encoded as 0b1111111 (indicated index of 127 in decimal notation).

TABLE 5

For example, in this embodiment, in order to allocate a DRU whose maximum granularity does not exceed 15 or whose allocation number is equal to 17 to a certain user, the base station sends a basic allocation control information unit of the DRU allocation type to the user. In the control information unit, an identifier occupying several bits (for example, 4 bits) is used to identify that the allocated resource is of a DRU type, and the maximum granularity does not exceed 15 or the allocated number is equal to 17 logical resource blocks. If the 7-bit indication signaling in the basic allocation control information element is 1000011 (decimal 67), the user receives the indication signaling, and the base station allocates 3 DRUs to the user according to table 5 above, and its logical number starts from 20, i.e. three DRUs of 20, 21, 22 are allocated to the user.

For the case that the allocation granularity is larger than 15 DRUs and not equal to 17 DRUs, 8 bits are used to represent allocation information, wherein the first 5 bits represent the start position of allocation, and the last 3 bits represent the allocation size (16, 18-24). For example, when 16 DRUs are allocated to a user, and the DRUs are allocated₀～DRU₁₅Then, the first 4 bits 00000 indicate the starting position is DRU₀The last 3 bits 000 indicate that the allocated resource size is 16 DRUs. In this embodiment, the base station is in order toAnd allocating the DRU with the maximum granularity of more than 15 and not equal to 17 DRUs to a certain user, and sending an extended basic allocation control information unit of the DRU allocation type to the user. In the control information unit, an identifier of several bits (for example, 4 bits) is used to identify that the allocated resource is a DRU type, and the number of allocated resources exceeds 15 and is not equal to the logical resource blocks of 17 DRUs. Where 8 bits indicate signaling as 001000010. The user receives the indication signaling, and analyzes the first 4 bits to know the distributed unit from the 4 th DRU (DRU)₃) At the beginning, the resource size is known to be 18 DRUs after the 4 bits are analyzed.

Example 11:

in this embodiment, it is assumed that there is a 10MHz system (which uses 1024-point FFT) with 4 frequency partitions, i.e., FP₀，FP₁，FP₂，FP₃There are 24, 8, 8, and8 LRUs for each frequency partition, wherein there are 24, 8, 8, and8 CRUs in the LRUs for each frequency partition, i.e., all LRUs are CRUs. Every four logically consecutive CRUs make up a Subband (Subband). Thus, there are 6, 2, 2, 2 subbands in each frequency partition, for a total of 12 subbands.

When allocating CRUs for unicast users, the base station first allocates FPs₀，FP₁，FP₂，FP₃Of the sub-bands of 12 CRU, renumbered as sub-band in a particular order₀，Subband₁，Subband₂，......，Subband₁₀，Subband₁₁E.g. according to slave FP₀To FP₃Respectively, the FP ₀6 CRU sub (i.e., FP)₀Subband in (1)₀～Subband₅) Numbered as Subband₀～Subband₅Will FP₁2 of (i.e., FP)₁Subband in (1)₀～Subband₁) Numbered as Subband₆～Subband₇Will FP₂2 CRU sub (i.e. FP)₂Subband in (1)₀～Subband₁) Numbered as Subband₈～Subband₉Will FP₃2 CRU sub (i.e. FP)₃Subband in (1)₀～Subband₁) Numbered as Subband₁₀～Subband₁₁. The 12 sub bands are divided into 2 groups, the first group G₁Comprising a sub band₀～Subband ₈9 total subbands, group G₂Comprising a sub band₃～Subband₁₁。

The base station uses 10 bits to indicate the resource in the resource allocation information, uses 1 bit (for example, the most significant bit) to indicate which group the currently allocated resource is in, and0 indicates that the allocated sub band is in the first group G₁In (1) indicates that the allocated sub band is in the second group G₂The base station uses another 9 bits in the resource allocation information to indicate which of the 9 subbands in the corresponding group are indicated, for example, if the highest bit of the 9 bits is 1, the Subband indicating the largest logic sequence number in the corresponding Subband group is allocated.

For example, when 3 CRU subbands are allocated to users, and allocated are subbands 4, subbands 7 and subbands 8, it is obvious that the base station can determine that all 3 subbands to be allocated at this time are in group G2, then the base station uses the highest bit position 1 to indicate in group G2, then 9 bits are used to indicate which 9 subbands in group G2 are indicated, and then Subband4 is the second smallest logical number (the smallest is Subband3) in group G2, so the lowest bit in the 9 bits is 0, the second bit is 1, and Subband5 is not allocated, so the third bit in the 9 bits is 0, and so on, the total 10-bit resource allocation information is binary (the left is high) 0b1000110010

Example 12:

in this embodiment, it is assumed that there is a 5MHz system (which uses 512-point FFT) with 1 frequency partition, i.e., FP₀Frequency partition FP₀There are 24 LRUs, all of which are CRUs. Every four logically consecutive CRUs make up a Subband (Subband). Thus there are 6 subbands in the frequency partition.

In thatWhen the unicast user distributes CRU, the base station firstly distributes FP₀Of the sub-bands of total 6 CRU, renumbered as sub-band in a certain order₀，Subband₁，Subband₂，......，Subband₅. The 6 sub bands are divided into 1 group, the first group G₁Comprising a sub band₀～Subband₅A total of 6 subbands. The base station uses 0 bit (i.e. does not use any bit) in the resource allocation information to indicate which group the currently allocated resource is in, and the base station uses 6 bits in the resource allocation information to indicate the corresponding group G₁Which of the 6 sub-groups is indicated, e.g. if the most significant bit of the 6 bits is 1, the sub-group representing the largest logical sequence number in the corresponding sub-group is assigned.

For example, when 3 CRU subbands are allocated to users and3 subbands are allocated to the users, and the base station obviously determines that 3 subbands to be allocated at this time are all in the group G1, the base station uses 6 bits to indicate which 6 subbands in G1 are indicated, since the Subband0 is not allocated, the least significant bit is 0, the Subband1 is allocated, the second bit is 1, the

Example 13:

in this embodiment, it is assumed that there is a 20MHz system (which uses 2048-point FFT) with 4 frequency partitions, i.e., FPs₀，FP₁，FP₂，FP₃There are 24, 24, 24, and 24 LRUs in each frequency partition, wherein there are 24, 24, 24, and 24 CRUs in the LRUs of each frequency partition, i.e., all the LRUs are CRUs. Every four logically consecutive CRUs make up a Subband (Subband). Thus, there are 6, 6, 6, 6 subbands in each frequency partition, for a total of 24 subbands.

When allocating CRU for unicast user, the base station uses 14 bits to indicate the resource, the base station first uses FP₀，FP₁，FP₂，FP₃Of the sub-bands of 24 CRU, renumbered as sub-band in a certain order₀，Subband₁，Subband₂，......，Subband₁₀，Subband₂₃E.g. according to slave FP₀To FP₃Respectively, the FP ₀6 CRU sub (i.e., FP)₀Subband in (1)₀～Subband₅) Numbered as Subband₀～Subband₅Will FP₁6 of (i.e., FP)₁Subband in (1)₀～Subband₅) Numbered as Subband₆～Subband₁₁Will FP₂6 CRU sub (i.e., FP)₂Subband in (1)₀～Subband₅) Numbered as Subband₁₂～Subband₁₇Will FP₃6 CRU sub (i.e., FP)₃Subband in (1)₀～Subband₅) Numbered as Subband₁₈～Subband₂₃. The 12 sub bands are divided into 4 groups, the first group G₁Comprising a sub band₀～Subband₁₁Total 12 Subbands, second group G₂Comprising a sub band₁₂～Subband₂₃Total 12 Subband, third group G₃Comprising a Surbband₆～Subband₁₇Total of 12 Subbands, fourth group G₄Comprising a Surbband₀～Subband₅And Subband₁₈～Subband₂₃There were 12 total subbands.

The base station may use 2 bits (e.g. the most significant 2 bits) of the 14 bits in the resource allocation information to indicate which group the currently allocated resource is in, and 00 indicates that the allocated sub band is in the first group G₁In 01, the allocated sub band is in the second group G₂In (1), 10 indicates that the allocated Subband is totally in G₃In (11) indicates that allocated sub band is all in G₄In the resource allocation information, the base station uses another 12 bits (for example, lower 12 bits) to indicate which of the 12 subbands in the corresponding group are indicated, for example, if the highest bit of the 12 bits is 1, it indicates the maximum logic in the corresponding Subband groupThe sub band of the sequence number is assigned.

For example, when 3 CRUs subbands are allocated to users, and allocated to subbands 0, 5, 23, it is obvious that the base station can determine that all 3 subbands to be allocated at this time are in group G₄Then the base station uses the highest bit position of 11 to indicate in the G4 group, and then indicates G with 12 bits₄Which of the 12 subbands is indicated, Subband0 is the smallest logical number in G4, so the lowest bit of the corresponding 12 bits is 1, Subband1 is the second logical number in G4, and is not assigned, so the second bit of the 12 bits is 0₄The logical sequence number in the sequence number is the largest, so the highest bit of the corresponding 12 bits is 1, and so on, and the total resource allocation information of 14 bits is binary (the left bit is the high bit) 0b 11100000100001.

Example 14:

When allocating CRU for unicast user, the base station uses 14 bits to indicate the resource, the base station first uses FP₀，FP₁，FP₂，FP₃Of the sub-bands of 24 CRU, renumbered as sub-band in a certain order₀，Subband₁，Subband₂，......，Subband₁₀，Subband₂₃E.g. according to slave FP₀To FP₃Respectively, the FP ₀6 CRU sub (i.e., FP)₀Subband in (1)₀～Subband₅) Numbered as Subband₀～Subband₅Will FP₁6 of (i.e., FP)₁Subband in (1)₀～Subband₅) Numbered as Subband₆～Subband₁₁Will FP₂6 CRU sub (i.e., FP)₂Subband in (1)₀～Subband₅) Numbered as Subband₁₂～Subband ₁₇6 CRU Subband (i.e. FP) of FP3₃Subband in (1)₀～Subband₅) Numbered as Subband₁₈～Subband₂₃. The 12 sub bands are divided into 4 groups, the first group G₁Comprising a sub band₀～Subband₁₁Total 12 Subbands, second group G₂Comprising a sub band₁₂～Subband₂₃Total 12 Subband, third group G₃Comprising a Surbband₆～Subband₁₇Total of 12 Subbands, fourth group G₄Comprising a Surbband₀～Subband₅And Subband₁₈～Subband₂₃There were 12 total subbands. Fifth group G₅Comprising a Surbband₀～Subband₅And Subband₁₂～Subband₁₇There were 12 total subbands. Sixth group G₆Comprising a Surbband₆～Subband₁₁And Subband₁₈～Subband₂₃There were 12 total subbands.

The base station may use 3 bits (e.g. the highest 3 bits) of the 15 bits in the resource allocation information to indicate which two groups the currently allocated resources are in, 000 indicates that the allocated subbands are all in the first group G₁In 001 indicates that the allocated sub band is in the second group G₂In 010, it means that allocated Subband is totally in G₃In 011, the allocated sub band is all in G₄In 100, the allocated sub band is all in G₅101 denotes that allocated Subband is all in G₆The base station uses another 12 bits (for example, lower 12 bits) in the resource allocation information to indicate which of the 12 subbands in the corresponding group are indicated, for example, if the highest bit of the 12 bits is 1, the Subband indicating the largest logic sequence number in the corresponding Subband group is allocated.

For example, when allocating 3 usersWhen CRU sub, and allocated sub 0, sub 5, and sub 23, it is obvious that the bs can determine that 3 sub to be allocated are all in group G₄Then the base station uses the highest bit position of 11 to indicate in the G4 group, and then indicates G with 12 bits₄Which of the 12 subbands is indicated, Subband0 is the smallest logical number in G4, so the lowest bit of the corresponding 12 bits is 1, Subband1 is the second logical number in G4, and is not assigned, so the second bit of the 12 bits is 0₄The logical sequence number in the sequence number is the largest, so the highest bit of the corresponding 12 bits is 1, and so on, and the total resource allocation information of 14 bits is binary (the left bit is the high bit) 0b 11100000100001.

Example 15:

in this example, for a 16MHz irregular bandwidth system, the system can be extended to be equivalent to a 20MHz bandwidth system by changing the subcarrier spacing or the sampling rate, and we consider that the resource bandwidth of the system and the 20MHz bandwidth belong to the same type of bandwidth. The system resource allocation case is referred to the corresponding 20MHz system at this time.

Example 16:

in this example, for a 16MHz irregular bandwidth system, the system can be reduced to a system equivalent to a 10MHz bandwidth by discarding part of resource blocks (Tone Dropping), or changing the subcarrier spacing or sampling rate, and we consider that the resource bandwidth of the system belongs to the same class of bandwidth as the 10MHz bandwidth. The system resource allocation case is referred to a corresponding 10MHz system at this time.

In the above embodiment, N is the maximum number of allocable logical resource units. Here, N may be any one or a combination of the following: a Contiguous Resource Unit (CRU), a Distributed Resource Unit (DRU), a Subband (Subband).

It should be noted that the above embodiments are merely exemplary, and the various methods in the above embodiments can be not only given by tables, but also described by graphs, trees (trees), formulas and their combinations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for indicating resource allocation, comprising:

the base station sends resource allocation information to the terminal, wherein the resource allocation information indicates the number and/or the position of the logic resource units allocated by the base station.

2. The method of claim 1, wherein if the number of logical resource units allocated by the base station is K1, M < K1 ≦ N, and there are X possible starting positions of K1 logical resource units, the resource allocation information indicates the starting position to be one of Y possible starting positions of the X possible starting positions, wherein Y ≦ X, 0 < M ≦ N, and N is the maximum number of allocable logical resource units.

3. The method of claim 1, wherein if the number of logical resource units allocated by the base station is K2, K2 ≦ M, and there are X possible starting positions of K2 logical resource units, the starting position indicated by the resource allocation information is one of the X possible starting positions, where 0 < M ≦ N, and N is the maximum number of allocable logical resource units.

4. The method according to any of claims 1 to 3, wherein prior to transmitting the resource allocation information, the method further comprises:

and the base station carries out continuous sequential numbering on the logic resource units in all the frequency partitions.

5. The method according to claim 4, wherein the logical resource units comprise distributed resource units and/or centralized resource units, and wherein the consecutive sequential numbering of the logical resource units comprised in all frequency partitions comprises at least one or a combination of:

carrying out continuous sequence numbering on distributed resource units in all frequency partitions;

the centralized resource units in all frequency partitions are numbered sequentially in succession.

6. The method according to any of claims 1 to 3, wherein prior to transmitting the resource allocation information, the method further comprises:

and the base station separately and sequentially numbers the logic resource units in each frequency partition.

7. The method according to claim 6, wherein the logical resource units comprise distributed resource units and/or centralized resource units, and wherein the individually consecutive sequential numbering of the logical resource units comprised in the respective frequency partitions comprises at least one of:

the distributed resource units in each frequency partition are individually numbered in a continuous sequence;

the centralized resource units in each frequency partition are individually numbered sequentially in succession.

8. A method for indicating resource allocation, comprising:

the base station sends resource allocation information to the terminal, wherein the resource allocation information indicates the number and/or the initial position of the logic resource units allocated by the base station.

9. The method of claim 8, wherein the set of the number of logical resource units that can be allocated by the base station is a subset of A, B and C are subsets of A, and the union of B and C is equal to A.

10. The method of claim 8, wherein B and C satisfy the following condition: the elements in B are all smaller than the elements in C.

11. The method according to claim 9 or 10,

if the number B of the logical resource units allocated by the base station belongs to B, all bits of the resource allocation information are used for the number B of the logical resource units allocated by the base station and the starting positions of the B logical resource units;

if the number C of the logical resource units allocated by the base station belongs to C, a part of bits of all bits occupied by the resource allocation information indicate the number C of the logical resource units allocated by the base station, and the rest bits except the part of bits indicate the starting positions of the C logical resource units allocated by the base station.

12. The method according to any of claims 8 to 10, wherein prior to transmitting the resource allocation information, the method further comprises:

13. The method according to claim 12, wherein the logical resource units comprise distributed resource units and/or centralized resource units, and wherein the individually consecutive sequential numbering of the logical resource units comprised in the respective frequency partitions comprises at least one of:

carrying out continuous sequence numbering on the distributed resource units in all the frequency partitions;

14. The method according to any of claims 8 to 10, wherein prior to transmitting the resource allocation information, the method further comprises:

and the base station individually carries out continuous sequential numbering on the logic resource units included in each frequency partition.

15. The method of claim 14, the logical resource units comprising distributed resource units and/or centralized resource units, the individually consecutive sequential numbering of the logical resource units comprised in the respective frequency partitions comprising at least one or a combination of:

and the base station individually carries out continuous sequential numbering on the centralized resource units in each frequency partition.

16. A method for indicating resource allocation, comprising:

and the base station sends resource allocation information to the terminal, wherein the bit number occupied by the resource allocation information is determined according to the system bandwidth.

17. The method according to claim 16, wherein the system bandwidth includes a first type bandwidth, a second type bandwidth, and a W-th type bandwidth, and wherein the number of bits occupied by the resource allocation information is B₁、B₂,... and B_WA₁、B₂,... and B_WAre partially or completely different from each other.

18. The method of claim 17, wherein B is₁、B₂,... and B_WThe values of (a) are partially identical to each other means that:

there is i ≠ j (1 ≦ i < j ≦ W), and B_i＝B_j。

19. The method of claim 17, wherein B is₁、B₂,... and B_WThe completely different values of (A) are as follows:

for any i ≠ j (i is more than or equal to 1 and less than j and less than or equal to W), B_i≠B_j。

20. The method of claim 17,

for any i ≠ j (i is more than or equal to 1 and less than j and less than or equal to W), the number of IFFT and/or FFT points corresponding to the ith type bandwidth and the jth type bandwidth is different.

21. A method for indicating resource allocation, comprising:

22. The method of claim 21, wherein:

dividing logical resource units into G₁，G₂，......，G_LL groups of N₁，N₂，......，N_LAnd a part of bits in all bits of the resource allocation information indicate a group where the allocated logic resource units are located, and the rest bits except the part of bits indicate the allocated logic resource units in the group.

23. The method of claim 22,

G₁，G₂，......，G_Lthere are at least two group intersections;

wherein the presence of at least two group intersections means: the existence of i not equal to j, i is more than or equal to 1 and less than j and L, G_iAnd G_jThere is at least one identical logical resource unit; or,

G₁，G₂，......，G_Lthe result of the disjointness is that,

wherein disjoint means: for any i not equal to j, i is more than or equal to 1 and less than j and less than or equal to L, G_iAnd G_jThe logical resource units in (b) are different.

24. The method according to any one of claims 21 to 23, wherein the method further comprises the step of applying a pressure to the substrate

And the logic resource units distributed by the base station are incompletely continuous logic resource units.

25. A method for indicating resource allocation, comprising:

a base station sends resource allocation information to a terminal, wherein the resource allocation information indicates the terminal

The number and/or the starting position of the sub-bands allocated by the base station.

26. The method of claim 25, wherein:

dividing logical resource units into sub-bands, dividing sub-bands into S₁，S₂，......，

S_KK groups, N in each group₁，N₂，......，N_KA sub-band of

Some bits of all bits of the resource allocation information indicate a group in which the allocated logical resource unit is located, and the remaining bits indicate subbands allocated in the group.

27. The method of claim 26,

S₁，S₂，......，S_Lthere are at least two sets that intersect each other,

wherein the presence of at least two group intersections means: the existence of i not equal to j, i is more than or equal to 1 and less than or equal to j and K, S_iAnd S_jThere is at least one identical sub-band; or,

S₁，S₂，......，S_Kdisjoint, wherein disjoint means: for any i ≠ j,

1≤i＜j≤K，S_iand S_jAre not identical.

28. The method according to any one of claims 25 to 27, wherein the method further comprises the step of applying a pressure to the sample

The sub-bands allocated by the base station are incompletely continuous sub-bands.