CN110149710B - Frequency domain resource allocation method, device, equipment and wireless communication system - Google Patents
Frequency domain resource allocation method, device, equipment and wireless communication system Download PDFInfo
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- CN110149710B CN110149710B CN201810150679.0A CN201810150679A CN110149710B CN 110149710 B CN110149710 B CN 110149710B CN 201810150679 A CN201810150679 A CN 201810150679A CN 110149710 B CN110149710 B CN 110149710B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
The invention provides a frequency domain resource allocation method, a device, equipment and a wireless communication system, aiming at a 5G NR system standard, the method can be used for URLLC service, different resources are indicated to fully utilize the bit number used for frequency domain resource allocation in DCI, the bandwidth of the whole part of carrier bandwidth is divided into a plurality of frequency domain resources as uniformly as possible, each and every continuous plurality of frequency domain resources are indicated, or each and every continuous plurality of frequency domain resources in a certain frequency domain unit part are indicated, the frequency domain resource allocation method can be pertinently adapted to the 5G NR standard, compared with the prior art that the bit number used for resource allocation cannot be fully used, the invention fully utilizes the bit number used for frequency domain resource allocation, uses less bit number for resource allocation, reduces the total bit number of downlink control information, therefore, the success rate of decoding the downlink control information is improved, and high-reliability and high-efficiency resource allocation is realized.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a frequency domain resource allocation method under the 5G NR protocol standard, and an apparatus and a system corresponding to the method.
Background
URLLC (Ultra-Reliable and Low Latency Communications) is a 5G application scenario defined by 3GPP (3rd Generation Partnership Project). The URLLC service has the characteristics of burstiness, sparsity and small data packets, and has very strict requirements on delay and reliability. The Control channel of URLLC service also has very strict requirements on reliability, and NR (New Radio, New air interface) supports simplified DCI (Downlink Control Information) to obtain high reliability. Such simplified DCI requires a reduction in the number of bits indicating information of resource allocation, MCS, and the like.
Currently NR supports two resource allocation approaches, type 0 and type 1. In the Resource allocation type 0, the DCI indicates an RBG (Resource Block Group) allocated to the UE through one bitmap. RBG is a set of contiguous centralized VRBs (localized VRBs). The size of the RBG, P (P, i.e., the number of VRBs contained in each RBG, the first and lastThe number of VRBs contained by an RBG may be less than P) is determined by the bandwidth of the higher layer signaling and BWP. The total number of RBGs NRBG in BWP is determined by the bandwidth of BWP, P and the starting position of BWP. The bitmap comprises NRBG bits, each 1 bit corresponds to 1 RBG, the highest bit represents RBG0, and the lowest bit represents RBG
And so on. If a certain RBG is allocated to a certain UE, the corresponding bit in the bitmap is set to 1; otherwise, it is set to 0. In resource allocation type 1, the resource allocated to the UE is a continuous segment of VRBs, and the VRBs may be localized (localized) or distributed (distributed). There is a bit (corresponding to the Localized/Distributed VRB assignment flag field) in the DCI to indicate whether to use Localized VRB (the bit is 0) or Distributed VRB (the bit is 1). The resource allocation is represented by a resource indication value riv (resource indication value). From this value, the starting RB allocated to the UE and the length of the consecutively allocated RBs can be derived.
The number of bits used in the 2 current frequency resource allocation schemes is large, and the number of bits of type 1 is small compared to type 0, and when BWP includes the number of RBs N, the number of bits required for type 1 is such that the number of bits used for resource allocation is often not fully used due to the upward dereferencing operation performed when type 1 is used.
In the related art, there have been proposed various methods for allocating frequency domain resources, and as described in document No. WO2008JP00675, a radio communication base station apparatus for obtaining a frequency diversity effect of a downlink control channel is disclosed, in which an RB allocating unit allocates uplink resource blocks continuous in a frequency axis to each radio communication mobile station apparatus by frequency scheduling to generate allocation information, and a allocating unit allocates a response signal to the radio communication mobile station apparatus on the downlink control channel in association with the uplink resource blocks, and the downlink control channel is allocated in a distributed manner on the frequency axis. For example, document 2 with application number CN2010105861140 describes a method and a base station for scheduling and allocating resources in an orthogonal frequency division multiplexing system, where three non-intersecting sets are taken from the minimum total number of time-frequency resources available for terminal scheduling to be used by each of three adjacent sectors, and the sets are used to set low-interference time-frequency regions and high-interference time-frequency regions of the three adjacent sectors, respectively, and the base station determines the type of a terminal user and allocates the time-frequency resources in the low-interference time-frequency regions or the high-interference time-frequency regions corresponding to the terminal user according to the type of the terminal user. Also, for example, in document 3 with application number CN2016104826429, a communication resource allocation method is described, in which granularity information and a frequency domain resource range of a time-frequency resource for a service type are determined, the granularity information and the frequency domain resource range of the time-frequency resource for the service type are sent to a terminal requesting to establish a service bearer, and corresponding adjustment is flexibly performed on the granularity and the frequency domain resource range of the time-frequency resource, so that resource scheduling can adapt to different service types.
The above prior art allocates resource blocks based on allocation information, or allocates time-frequency resources in a corresponding low-interference time-frequency region or a corresponding high-interference time-frequency region according to the type of a terminal user, or adjusts and configures the granularity of the time-frequency resources and the frequency domain resource range. However, these prior arts do not sufficiently consider the problem of how to fully use the number of bits for resource allocation, in which case the number of bits for resource allocation is fully used, especially for URLLC traffic, which is also a problem in the prior art.
Further, the technical problem is particularly obvious and prominent in the current situation that the 5G wireless communication standard is mature, and in the communication environment that the 5G NR standard has been introduced.
However, the existing operation of taking up the value of the frequency domain resource allocation of 5G NR cannot fully use the bit number for resource allocation, and this problem still cannot be solved.
Disclosure of Invention
In order to solve the above technical problem and reduce the bit number indicated in the DCI, the present invention proposes a frequency domain resource allocation scheme using a relatively small number of bits in the existing 5G NR, which can be used for URLLC service, because the URLLC service packet is relatively small,compared with the eMBB service, the requirement for flexibility of resource allocation is lower, a resource allocation method with certain constraint can be used to reduce the number of bits, and if the number of bits indicating frequency domain resource allocation in DCI is M, the number of bits is 2MDifferent resources are indicated to fully utilize the number of bits in the DCI for frequency domain resource allocation. The present invention divides the bandwidth of the whole BWP as uniformly as possible into 2M-1(or 2)M) Each and every consecutive plurality of frequency domain resources, or each and every consecutive plurality of frequency domain resources in a certain frequency domain unit portion, is indicated, M being an integer greater than 1.
The technical terms of the invention are as follows:
URLLC ultra-high reliability ultra-low time delay communication
BWP partial carrier bandwidth
DCI-Downlink control information
SINR (Signal to interference plus noise ratio)
Resource block of RB
VRB virtual resource block
PRB: physical resource block
The invention provides a frequency domain resource allocation method, which is realized in a 5G NR system and can be used for URLLC service, and the method comprises the following steps:
step 1, dividing part of carrier bandwidth into 2M-1A frequency domain unit, M is an integer larger than 1;
step 2, adopting M bits to carry out resource allocation, and using 2MEach code word indicates different resources or adopts M-1 bits for resource allocation and 2 bits for resource allocationM-1Each codeword indicates a different resource.
Wherein, 2 isM-1Front of a frequency domain unit
The number of virtual resource blocks contained in each frequency domain unit is
Rear end
The number of virtual resource blocks contained in each frequency domain unit is
Wherein
Is the number of resource blocks of the partial carrier bandwidth i.
Wherein, determining the M value mode comprises: assigning M a fixed value or configuring M by higher layer signaling or by
Obtaining; where X is a fixed value or is configured by higher layer signaling and represents the minimum number of resource blocks needed for each frequency domain unit.
Wherein M bits are used for resource allocation, and 2 is usedMThe specific case where each codeword indicates different resources is: by 2M-KFor each successive 2K-1Indicating a frequency domain unit, wherein K is an integer and belongs to [1, M ]]Indicated by a code word
A frequency domain unit, where α is a default value or configured through higher layer signaling.
Wherein, the l frequency domain units are the first l frequency domain units or the last l frequency domain units or the middle l frequency domain units of the bwpi.
Wherein M-1 bits are used for resource allocation and 2 bits are usedM-1The specific case where each codeword indicates different resources is: the frequency domain unit of the partial carrier bandwidth is divided into two parts, where the frequency domain unit [0, 2%M-2-1]Belonging to a first part, frequency domain unit [2 ]M-2,2M-1-1]Belongs to the second part, K is an integer, and K belongs to [1, M-1 ]]When mod (K,2) is 1, use 2M-K-1Each successive 2 of the codeword pair for the first partK-1Indicates a frequency domain unit of 2 when mod (K,2) is 0M-K-1Each successive 2 of the codeword pair for the second partK-1Indicating a frequency domain unit(ii) a Finally, one codeword is used to indicate the entire bandwidth.
Correspondingly, the present invention further proposes a frequency domain resource allocation apparatus, which is implemented in a 5G NR system and can be used for URLLC service, and includes:
a frequency domain unit division module for dividing part of the carrier bandwidth into 2M-1A frequency domain unit;
a resource allocation module for allocating resources using M bits, using 2MEach code word indicates different resources or adopts M-1 bits for resource allocation and 2 bits for resource allocationM-1Each codeword indicates a different resource; wherein M is an integer greater than 1.
Wherein, 2 isM-1Front of a frequency domain unit
The number of virtual resource blocks contained in each frequency domain unit is
Rear end
The number of virtual resource blocks contained in each frequency domain unit is
Wherein
Is the number of resource blocks of the partial carrier bandwidth i.
Wherein, determining the M value mode comprises: assigning M a fixed value or configuring M by higher layer signaling or by
Obtaining; where X is a fixed value or is configured by higher layer signaling and represents the minimum number of resource blocks required for each frequency domain unit.
Wherein M bits are used for resource allocation, and 2 is usedMThe specific case where each codeword indicates different resources is: by 2M-KA code word toFor each successive 2K-1Indicating a frequency domain unit, wherein K is an integer and belongs to [1, M ]]Indicated by a code word
A frequency domain unit, where α is a default value or configured through higher layer signaling.
Wherein, the l frequency domain units are the first l frequency domain units or the last l frequency domain units or the middle l frequency domain units of the bwpi.
Wherein M-1 bits are used for resource allocation and 2 bits are usedM-1The specific case where each codeword indicates different resources is: the frequency domain unit of the partial carrier bandwidth is divided into two parts, where the frequency domain unit [0, 2%M-2-1]Belonging to a first part, frequency domain unit [2 ]M-2,2M-1-1]Belongs to the second part, K is an integer, and K belongs to [1, M-1 ]]When mod (K,2) is 1, use 2M-K-1Each successive 2 of the codeword pair for the first partK-1Indicates a frequency domain unit of 2 when mod (K,2) is 0M-K-1Each successive 2 of the codeword pair for the second partK-1Indicating the frequency domain units; finally, one codeword is used to indicate the entire bandwidth.
Correspondingly, the present invention also provides a user equipment, which includes a processor, a memory, a signal transceiving unit for transmitting and receiving radio signals, and a processor of the user equipment configured to implement the method for frequency domain resource allocation performed by the user equipment as described above;
correspondingly, the present invention also provides a computer-readable storage medium storing computer-executable instructions, which when executed can implement the method for frequency domain resource allocation as described above;
correspondingly, the present invention also provides a wireless communication system, based on the 5G NR system standard, including a base station and a user equipment wirelessly communicatively connected to the base station, the user equipment including a processor, a memory, and a signal transceiving unit, the signal transceiving unit being configured to transmit and receive radio signals, the processor of the user equipment being configured to implement the method for frequency domain resource allocation performed by the user equipment as described above.
The method and the system provided by the invention can limit the resource allocation mode according to the 5G NR system standard and URLLC service, indicating different resources to fully utilize the bit number for frequency domain resource allocation in the DCI, dividing the bandwidth of the whole partial carrier bandwidth into a plurality of frequency domain resources as uniformly as possible, indicating every continuous multiple frequency domain resources, the method for URLLC service can be pertinently adapted to the 5G NR standard, compared with the prior art that the bit number for resource allocation can not be fully used, the method makes full use of the bit number for frequency domain resource allocation, uses less bit number for resource allocation, reduces the total bit number of downlink control information, therefore, the success rate of decoding the downlink control information is improved, and high-reliability and high-efficiency resource allocation is realized. Of course, those skilled in the art will appreciate that the foregoing methods and apparatus of the present invention may be used in other services as well.
Drawings
FIG. 1 is a schematic flow chart of the method of the present invention;
FIG. 2 is a block diagram of the frame of the apparatus of the present invention;
fig. 3 is a block diagram of a framework of the invention including a user equipment implementing the method of the invention and a wireless communication system in which the equipment is located.
Detailed Description
Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The detailed description, which will be given below with reference to the accompanying drawings, is intended to illustrate exemplary embodiments of the present invention, but not to show the only embodiments that can be implemented according to the present invention. The following detailed description includes specific details in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts. In some instances, well-known structures and devices are omitted to avoid obscuring the concepts of the invention, and their important functions are shown in block diagram form.
The embodiment of the invention is based on the data communication relation between the base station and the terminal, the base station is used as a terminal node of the network, and the base station can directly communicate with the terminal through the network. In the present invention, the term "Base Station (BS)" may be replaced with a functional end for implementing wireless access in the art, such as a fixed station, an eNode-b (enb), or an Access Point (AP), and correspondingly, the term "terminal" may also be replaced with a device, such as a User Equipment (UE), a Mobile Station (MS), and the like.
The method and the device are suitable for the 5G NR system. A resource allocation scheme using a relatively small number of bits. Especially for URLLC service, because the URLLC service packet is smaller, compared with eMBB service, the requirement for flexibility of resource allocation is lower, and a resource allocation manner with certain constraints can be used to reduce the number of bits.
However, since the 5G NR has flexible uplink and downlink resource allocation and flexible uplink and downlink resource rewriting, the conventional resource allocation methods, regardless of the type 0 or the type 1, cannot perfectly match the full utilization of the resource and the decoding success rate of the downlink control information.
Therefore, the invention provides a frequency domain resource allocation method for solving the above problems, which can realize resource allocation by using a relatively small number of bits by using the number of bits for frequency domain resource allocation in a 5G NR system, reduce the total number of bits of downlink control information, and improve the success rate of decoding the downlink control information.
More specifically, referring to fig. 1, the present invention provides a frequency domain resource allocation method for URLLC, which is implemented in a 5G NR system, and includes:
step 1, removingDivision of sub-carrier bandwidth into 2M-1A frequency domain unit;
assume BWP i has a bandwidth of
RB, overall BWP divided into 2M-1And a frequency domain unit. Wherein front is
The number of VRBs contained in a frequency domain unit is
Rear end
The number of VRBs contained in a frequency domain unit is
There are three ways to determine the value of M: 1. m is a fixed value; 2. m is configured through high-level signaling; 3. m can also be obtained by the following formula:
where X may be a fixed value or configured by higher layer signaling indicating the minimum number of RBs needed. The frequency diversity gain can be obtained by mapping VRBs to PRBs, for example, by mapping VRBs to PRBs of type 1.
Step 2, adopting M bits to carry out resource allocation, and using 2MEach code word indicates different resources or adopts M-1 bits for resource allocation and 2 bits for resource allocationM-1Each codeword indicates a different resource; wherein M is an integer greater than 1.
The encoding is performed in the following manner:
resource allocation with M bits, 2MOne codeword to indicate different resources, with 2M-KFor each successive 2K-1Indicating a frequency domain unit, wherein K is an integer and belongs to [1, M ]]. Indicating by a code word
A frequency domain unit, where α is a default value or configured through higher layer signaling. The l frequency domain units may be the first or last l frequency domain units or the middle l frequency domain units of bwpi.
Resource allocation with M-1 bits, 2M-1Each codeword indicating a different resource, the frequency domain unit of BWP is divided into two parts, frequency domain unit [0,2 ]M-2-1]Belonging to a first part, frequency domain unit [2 ]M-2,2M-1-1]Belonging to the second part. K is an integer belonging to the family of [1, M-1 ]]. The encoding method is as follows:
a) when mod (K,2) is 1, use 2M-K-1For each successive 2 of the first partK-1Indicating the frequency domain units;
b) when mod (K,2) is 0, use 2M-K-1For each successive 2 of the second partK-1Indicating a frequency domain unit
c) Finally, one codeword is used to indicate the entire bandwidth.
More specifically, when allocating frequency domain resources for URLLC, the embodiments of the present invention may include several following embodiments:
example one
In this embodiment, resource allocation is performed by using M bits and 2 bitsMThe code words indicate different resource conditions for resource allocation.
BWP i has a bandwidth of 20 RBs, and M is determined as follows: default value of M is 4; m is configured to be 4 through high-layer signaling; m is indirectly derived by X, which is configured to be 2 by higher layer signaling or takes a default value of 2,
20 VRBs divided into 24-1Frequency domain units 0,1,2,3 contain 3 VRBs and frequency domain units 4,5,6,7 contain 2 VRBs, with the following table showing the frequency domain unit assignments:
the fixed value of α is 0.75 or configured by higher layer signaling to be 0.75, l ═ 6.
The coding with 4 bits can indicate 16 resource allocation modes, and the coding specifically comprises the following steps:
the value range of K is 1,2,3 and 4.
When K is 1, 8 codewords are used to indicate each frequency domain unit. Such as codeword 0000 to indicate frequency domain unit 0.
K is 2, 4 codewords are used to indicate every 2 consecutive frequency domain units. As codeword 1001 indicates frequency domain elements 2 and 3.
K is 3, every 4 consecutive frequency domain units are indicated with 2 codewords. E.g., codeword 1101 indicates frequency domain elements 4,5,6, and 7.
With K of 4, every 8 consecutive frequency domain units (i.e. the whole bandwidth) are indicated by 1 codeword
5. Every 6 consecutive frequency domain units are indicated with 1 codeword, such as codeword 1111 indicates frequency domain units 0-5 (codeword 1111 may also indicate frequency domain units 1-6 or frequency domain units 2-7).
The code words are the code patterns shown in the following table:
similarly, the present invention also provides another embodiment two, which performs resource allocation under the condition that M-1 bits are adopted for resource allocation and 2M-1 code words are used for indicating different resources.
Example two
The bandwidth of BWP i is 20 RBs, M is 4, and M is determined in the same manner as in the first embodiment.
The frequency domain unit of the whole BWP is divided into two parts, the frequency domain unit [0,3] belongs to the first part and the frequency domain unit [4,7] belongs to the second part.
The coding is performed by using 3 bits, which can indicate 8 resource allocation modes, and the coding specifically comprises the following steps:
the value range of K is 1,2 and 3.
1. When K is 1, mod (K,2) is 1, with 22One codeword to indicate each frequency domain element of the first portion. Frequency domain element 0 as codeword 000;
2. when K is 2, mod (K,2) is 0, with 21One codeword to indicate every 2 consecutive frequency domain units of the second portion. Frequency domain units 4 and 5 as indicated by codeword 100;
3. when K is 3, mod (K,2) is 1, indicating every 4 consecutive frequency domain elements of the first portion with 1 codeword. If codeword 110 indicates frequency domain elements 0,1,2, and 3;
4. finally 1 codeword is used to indicate the entire bandwidth, codeword 111.
The code words are the code patterns shown in the following table:
through the above specific embodiments of the present invention, the method provided by the present invention can adapt to the 5G NR standard for URLLC services, fully utilize the number of bits used for frequency domain resource allocation, use a relatively small number of bits for resource allocation, and reduce the total number of bits of downlink control information, thereby improving the success rate of decoding downlink control information and realizing a highly reliable and efficient resource allocation.
In addition, correspondingly, referring to fig. 2, the present invention also provides a frequency domain resource allocation apparatus of URLLC, said apparatus being implemented in a 5G NR system, including:
a frequency domain unit division module 201 for dividing part of the carrier bandwidth into 2M-1A frequency domain unit;
a resource allocation module 202 for allocating resources with M bits, 2MEach code word indicates different resources or adopts M-1 bits for resource allocation and 2 bits for resource allocationM-1Each codeword indicates a different resource; wherein M is an integer greater than 1.
Correspondingly, the embodiment of the present invention also provides a user equipment, which includes a processor, a memory, and a signal transceiving unit, where the signal transceiving unit is configured to transmit and receive radio signals, and the processor of the user equipment is configured to implement the frequency domain resource allocation method performed by the user equipment as described above.
Correspondingly, the embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions, and when the instructions are executed, the frequency domain resource allocation method as described above can be implemented.
Correspondingly, referring to fig. 3, an embodiment of the present invention further provides a wireless communication system, based on the 5G NR system standard, including a base station and a user equipment wirelessly connectable to the base station, where the user equipment includes a processor, a memory, and a signal transceiving unit, where the signal transceiving unit is configured to transmit and receive radio signals, and the processor of the user equipment is configured to implement the frequency domain resource allocation method performed by the user equipment as described above.
The method and the device provided by the embodiment of the invention have the advantages that the resource allocation mode is limited to a certain extent aiming at the URLLC service, different resources are indicated to fully utilize the bit number used for frequency domain resource allocation in DCI, the bandwidth of the whole part of carrier bandwidth is divided into a plurality of frequency domain resources as uniformly as possible, and each continuous plurality of frequency domain resources are indicated. Of course, those skilled in the art will appreciate that the foregoing methods and apparatus of the present invention may be used in other services as well.
The embodiments of the present invention described above are combinations of elements and features of the present invention. Unless otherwise mentioned, the elements or features may be considered optional. Each element or feature may be practiced without being combined with other elements or features. In addition, the embodiments of the present invention may be configured by combining some elements and/or features. The order of operations described in the embodiments of the present invention may be rearranged. Some configurations of any embodiment may be included in another embodiment, and may be replaced with corresponding configurations of the other embodiment. It is obvious to those skilled in the art that claims that are not explicitly cited in each other in the appended claims may be combined into an embodiment of the present invention or may be included as new claims in a modification after the filing of the present application.
Embodiments of the invention may be implemented by various means, such as hardware, firmware, software, or a combination thereof. In a hardware configuration, the method according to an exemplary embodiment of the present invention may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, and the like.
In a firmware or software configuration, embodiments of the present invention may be implemented in the form of modules, procedures, functions, and the like. The software codes may be stored in memory units and executed by processors. The memory unit is located inside or outside the processor, and may transmit and receive data to and from the processor via various known means.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A frequency domain resource allocation method is realized in a 5G NR system, and is characterized in that:
step 1, dividing part of carrier bandwidth into 2M-1A frequency domain unit, wherein M is an integer greater than 1,2M-1Front of a frequency domain unit
The number of virtual resource blocks contained in each frequency domain unit is
Rear end
The number of virtual resource blocks contained in each frequency domain unit is
Wherein
The number of resource blocks of a part of carrier bandwidth i;
step 2, adopting M bits to carry out resource allocation, and using 2MEach code word indicates different resources or adopts M-1 bits for resource allocation and 2 bits for resource allocationM-1Each codeword indicates a different resource.
2. The method of claim 1, wherein: the mode of determining the M value comprises the following steps: assigning M a fixed value or configuring M by higher layer signaling or by
Obtaining; where X is a fixed value or is configured by higher layer signaling and represents the minimum number of resource blocks required for each frequency domain unit.
3. The method of claim 1, wherein: resource allocation with M bits, 2MThe specific case where each codeword indicates different resources is: by 2M-KFor each successive 2K-1Indicating a frequency domain unit, wherein K is an integer and belongs to [1, M ]]Indicated by a code word
A frequency domain unit, where α is a default value or configured through higher layer signaling.
4. The method of claim 3, wherein: the l frequency domain units are the first l frequency domain units or the last l frequency domain units or the middle l frequency domain units of BWP i.
5. The method of claim 1, wherein: resource allocation with M-1 bits, 2M-1The specific case where each codeword indicates different resources is: the frequency domain unit of the partial carrier bandwidth is divided into two parts, where the frequency domain unit [0, 2%M -2-1]Belonging to a first part, frequency domain unit [2 ]M-2,2M-1-1]Belongs to the second part, K is an integer, and K belongs to [1, M-1 ]]When mod (K,2) is 1, use 2M-K-1Each successive 2 of the codeword pair for the first partK-1Indicates a frequency domain unit of 2 when mod (K,2) is 0M-K-1Each successive 2 of the codeword pair for the second partK-1Indicating the frequency domain units; finally, one codeword is used to indicate the entire bandwidth.
6. A frequency domain resource allocation apparatus implemented in a 5G NR system, characterized in that: the device comprises:
a frequency domain unit division module for dividing part of the carrier bandwidth into 2M-1A frequency domain unit, wherein M is an integer greater than 1,2M-1Front of a frequency domain unit
The number of virtual resource blocks contained in each frequency domain unit is
Rear end
The number of virtual resource blocks contained in each frequency domain unit is
Wherein
The number of resource blocks of a part of carrier bandwidth i;
a resource allocation module for allocating resources using M bits, using 2MEach code word indicates different resources or adopts M-1 bits for resource allocation and 2 bits for resource allocationM-1Each codeword indicates a different resource.
7. The apparatus of claim 6, wherein: the mode of determining the M value comprises the following steps: assigning M a fixed value or configuring M by higher layer signaling or by
Obtaining; where X is a fixed value or is configured by higher layer signaling and represents the minimum number of resource blocks required for each frequency domain unit.
8. The apparatus of claim 6, wherein: resource allocation with M bits, 2MThe specific case where each codeword indicates different resources is: by 2M-KFor each successive 2K-1Indicating a frequency domain unit, wherein K is an integer and belongs to [1, M ]]Indicated by a code word
A frequency domain unit, where α is a default value or configured through higher layer signaling.
9. The apparatus of claim 8, wherein: the l frequency domain units are the first l frequency domain units or the last l frequency domain units or the middle l frequency domain units of BWP i.
10. The apparatus of claim 6, wherein: resource allocation with M-1 bits, 2M-1The specific case where each codeword indicates different resources is: the frequency domain unit of the partial carrier bandwidth is divided into two parts, where the frequency domain unit [0, 2%M -2-1]Belonging to a first part, frequency domain unit [2 ]M-2,2M-1-1]Belongs to the second part, K is an integer, and K belongs to [1, M-1 ]]When mod (K,2) is 1, use 2M-K-1Each successive 2 of the codeword pair for the first partK-1Indicates a frequency domain unit of 2 when mod (K,2) is 0M-K-1Each successive 2 of the codeword pair for the second partK-1Indicating the frequency domain units; finally, one codeword is used to indicate the entire bandwidth.
11. A user equipment, characterized by: the method comprises the following steps: a processor, a memory, a signal transceiving unit, and a computer program stored on the memory and executable on the processor; the signal transceiving unit is used for transmitting and receiving radio signals; the processor of the user equipment, when executing the computer program, implements the method of any of claims 1-5 above.
12. A computer-readable storage medium characterized by: the system comprises: the computer-readable storage medium stores computer-executable instructions that, when executed by a processor, may implement the method of any of claims 1-5 above.
13. A wireless communication system based on the 5G NR system standard, characterized in that: the method comprises the following steps: a base station and a user equipment wirelessly communicatively connected to the base station; the user equipment comprises a processor, a memory, a signal transceiving unit, and a computer program stored on the memory and operable on the processor; the signal transceiving unit is configured to transmit and receive radio signals, and the processor of the user equipment implements the method according to any of the previous claims 1-5 when executing the computer program.
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