CN111615201A

CN111615201A - CORESET resource allocation and indication method and equipment

Info

Publication number: CN111615201A
Application number: CN202010294663.4A
Authority: CN
Inventors: 高峰; 任剑; 杨征帆
Original assignee: Beijing Yunzhi Soft Communication Information Technology Co ltd
Current assignee: Beijing Yunzhi Soft Communication Information Technology Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-09-01
Anticipated expiration: 2040-04-15
Also published as: CN111615201B

Abstract

The application discloses a CORESET resource allocation and indication method and equipment, which relate to the technical field of wireless communication and comprise the following steps: if the terminal comprises a bandwidth area, acquiring a physical resource block index of the bandwidth area; obtaining configuration information; controlling the terminal to analyze the configuration information to obtain the frequency domain position indicated by the CORESET; if the terminal comprises N bandwidth areas, wherein N is an integer greater than or equal to 2, sequentially obtaining the physical resource block index of each bandwidth area; acquiring configuration information, wherein the configuration information is bit data; therein, 2^MMore than or equal to N, and M is an integer; and controlling the terminal to analyze the configuration information to obtain the frequency domain position indicated by the CORESET. According to the method and the device, on the basis of the full-bandwidth PRB index, the BWP-level PRB index is increased, and the BWP-level index indicates the frequency domain position of CORESET, so that the overhead of RRC signaling is reduced.

Description

CORESET resource allocation and indication method and equipment

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method and device for allocating and indicating a CORESET resource.

Background

In the fifth Generation mobile communication technology (5th-Generation, 5G), as the bandwidth increases, the downlink control area resources are correspondingly increased. If the PDCCH sending and receiving mechanism in LTE is continuously adopted, the blind detection complexity of the terminal can be greatly increased. Therefore, a concept of a Control Resource Set (core Set) is introduced in 5G, the Control Resource with the full bandwidth is divided into a plurality of core sets, and each terminal performs blind detection of each aggregation level in the core Set corresponding to the terminal, so that the complexity of sending and receiving is reduced.

On the other hand, since different terminals have different processing capabilities, a Bandwidth Part (BWP) concept is further proposed in 5G, which allows the system to divide the full Bandwidth resource into several BWPs, terminals of different classes can be allocated different numbers and sizes of BWPs, and terminals can receive and transmit data only on the BWPs configured to be active, thereby allowing terminals of different processing capabilities to operate in the 5G system. However, in the prior art, the research on resource allocation in CORESET is based on a general full bandwidth case, and there is no method for resource allocation and indication of CORESET when a terminal operates under one or more different BWPs.

Disclosure of Invention

In view of this, the present application provides a method and a device for allocating and indicating a CORESET resource, which, on the basis of a full-bandwidth PRB index, increase a BWP-level PRB index, and indicate a frequency domain location of the CORESET through the BWP-level index, so as to reduce overhead of RRC signaling.

In order to solve the technical problem, the following technical scheme is adopted:

in one aspect, the present application provides a CORESET resource allocation and indication method, including:

judging whether the number of the bandwidth areas contained in the terminal is equal to 1:

if the terminal comprises a bandwidth area, numbering physical resource blocks contained in the bandwidth area to obtain physical resource block indexes of the bandwidth area; determining resources occupied by CORESET in the bandwidth area and obtaining a CORESET resource allocation result; adding at least 1 bit physical resource block identification position in the CORESET resource allocation result to obtain configuration information; sending the configuration information to the terminal through a wireless resource control signaling; controlling the terminal to analyze the configuration information to obtain the frequency domain position indicated by the CORESET;

if the terminal comprises N bandwidth areas, wherein N is an integer greater than or equal to 2, numbering physical resource blocks contained in the N bandwidth areas in sequence to obtain physical resource block indexes of the bandwidth areas; determining resources occupied by CORESET in each bandwidth area and obtaining CORESET resource allocation results in each bandwidth area; adding at least 1 bit physical resource block identification position and M bit bandwidth region identification position in the CORESET resource allocation result to obtain configuration information, wherein the configuration information is bit data; therein, 2^MMore than or equal to N, and M is an integer; sending the configuration information to the terminal through a wireless resource control signaling; and controlling the terminal to analyze the configuration information to obtain the frequency domain position indicated by the CORESET.

Optionally, wherein:

the numbering is performed on the physical resource blocks contained in the bandwidth region to obtain the physical resource block index of the bandwidth region, and specifically the numbering is performed on the physical resource blocks in the bandwidth region:

acquiring the bandwidth and the subcarrier interval occupied by the bandwidth region, calculating the number n of physical resource blocks contained in the bandwidth region under a time domain symbol according to the bandwidth and the subcarrier interval occupied by the bandwidth region, numbering the physical resource blocks according to 1-n in sequence, and acquiring the physical resource block index of the bandwidth region as 1-n.

Optionally, wherein:

determining resources occupied by the CORESET in the bandwidth area and obtaining a CORESET resource allocation result, which specifically comprises the following steps:

setting the granularity of the resource indication of the terminal as y, wherein the terminal comprises n/y bits; wherein the granularity represents 1 bit to indicate y physical resource blocks;

taking the occupied bit as 1 and taking the unoccupied bit as 0; and obtaining a CORESET resource allocation result according to the value of each bit.

Optionally, wherein:

when the terminal comprises N bandwidth areas, the granularity of the resource indication of the N bandwidth areas in the same terminal is the same.

Optionally, wherein:

for a terminal that contains one bandwidth region,

controlling the terminal to analyze the configuration information to obtain the frequency domain position of the CORESET, specifically:

sending a command to the terminal to enable the terminal to determine a field corresponding to each bit in the configuration information according to a protocol, wherein the field at least comprises a physical resource block identification region and a frequency domain position indication region;

and obtaining the frequency domain position indicated by the CORESET resource in the bandwidth region according to the bit data of the frequency domain position indication region.

Optionally, wherein:

for a terminal that contains N bandwidth regions,

sending a command to the terminal to enable the terminal to determine a field corresponding to each bit in the configuration information according to a protocol, wherein the field at least comprises a physical resource block identification region, a bandwidth region identification region and a frequency region position indication region;

and determining a current bandwidth area corresponding to the current configuration information according to the bandwidth area identification area, and obtaining the frequency domain position indicated by the CORESET resource in the current bandwidth area according to the bit data of the indication area.

In another aspect, the present application provides a CORESET resource allocation and indication apparatus, including:

the judging module is used for judging whether the number of the bandwidth areas contained in the terminal is equal to 1 or not;

a physical resource block index obtaining module, configured to number the physical resource blocks included in the bandwidth region to obtain a physical resource block index of the bandwidth region;

the distribution result acquisition module is used for determining resources occupied by CORESET in the bandwidth area and acquiring a CORESET resource distribution result;

a configuration information obtaining module, configured to add at least 1 bit physical resource block identification bit to the CORESET resource allocation result to obtain configuration information when the terminal includes a bandwidth region; when the terminal comprises N bandwidth regions, the terminal is used for adding at least a 1-bit physical resource block identification bit and an M-bit bandwidth region identification bit into the CORESET resource allocation result to obtain configuration information; therein, 2^MMore than or equal to N, and M is an integer;

a sending module, configured to send the configuration information to the terminal through a radio resource control signaling;

and the frequency domain position acquisition module is used for controlling the terminal to analyze the configuration information and acquiring the frequency domain position indicated by the CORESET resource.

Optionally, wherein:

the physical resource block index obtaining module is further configured to obtain a bandwidth and a subcarrier interval occupied by the bandwidth region, calculate the number n of physical resource blocks included in the bandwidth region under one time domain symbol according to the bandwidth and the subcarrier interval occupied by the bandwidth region, number the physical resource blocks in sequence according to 1-n, and obtain the physical resource block index of the bandwidth region as 1-n.

Optionally, wherein:

further comprising:

the granularity setting module is used for setting the granularity of the resource indication of the terminal to be y, and the terminal comprises n/y bits; wherein the granularity represents 1 bit to indicate y physical resource blocks;

the distribution result acquisition module is used for taking the occupied bit position to be 1 and taking the unoccupied bit position to be 0; and obtaining a CORESET resource allocation result according to the value of each bit.

Optionally, wherein:

and the granularity setting module is further configured to set the granularity of the resource indication of the N bandwidth areas in the same terminal to be the same when the terminal includes the N bandwidth areas.

Compared with the prior art, the CORESET resource allocation and indication method and equipment achieve the following effects:

according to the CORESET resource allocation and indication method and device, on the basis of the full-bandwidth PRB index, the BWP-level PRB index is increased, so that a terminal only containing one BWP can be supported, a terminal containing a plurality of BWPs can be supported, the BWP-level PRB index and the full-bandwidth-level PRB index are distinguished by increasing the PRB identification bit in the bitmap, confusion with the full-bandwidth-level PRB index is avoided, and therefore the accuracy of indication of the frequency domain position of the subsequent CORESET is ensured. When the terminal comprises a plurality of BWPs, the BWP identification bits are increased to accurately distinguish the BWPs, so that the indication of the frequency domain position occupied by CORESET under each BWP in the terminal is realized. The CORESET resource allocation and indication under one or more BWPs are supported, the application range is wide, and the frequency domain position of the CORESET is indicated through the BWP level index, so that the overhead of RRC signaling is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a flowchart illustrating a CORESET resource allocation and indication method according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of CORESET resource allocation and indication including a BWP;

FIG. 3 is a schematic diagram of CORESET resource allocation and indication involving multiple BWPs;

FIG. 4 is a flowchart illustrating the process of obtaining CORESET resource allocation results;

FIG. 5 is a diagram illustrating CORESET occupying frequency domain resources when the terminal includes a BWP;

FIG. 6 is a diagram illustrating a CORESET frequency domain resource bitmap corresponding to the embodiment of FIG. 5;

fig. 7 is a schematic diagram illustrating that the CORESET in each BWP occupies frequency domain resources when the terminal includes two BWPs;

FIG. 8 is a diagram illustrating a CORESET frequency domain resource bitmap corresponding to the embodiment of FIG. 7;

fig. 9 is a schematic structural diagram of a CORESET resource allocation and indication device provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of a CORESET resource allocation and indication device according to an embodiment of the present application.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.

Since different terminals have different processing capabilities, the concept of bandwidth area (BWP) is further proposed in 5G, allowing the system to divide the full bandwidth resource into several BWPs, different classes of terminals can be allocated different numbers and sizes of BWPs, and terminals can only receive and transmit data on the BWPs configured to be active, thereby allowing terminals with different processing capabilities to operate in the 5G system. However, in the prior art, the research on resource allocation in CORESET is based on a general full bandwidth case, and there is no method for resource allocation and indication of CORESET when a terminal operates under one or more different BWPs.

The following detailed description is to be read in connection with the drawings and the detailed description.

Fig. 1 is a flowchart illustrating a CORESET resource allocation and indication method according to an embodiment of the present application, fig. 2 is a schematic diagram illustrating CORESET resource allocation and indication including a BWP, fig. 3 is a schematic diagram illustrating CORESET resource allocation and indication including a plurality of BWPs, please refer to fig. 1-3, which illustrates a CORESET resource allocation and indication method including:

step 10: judging whether the number of the bandwidth areas contained in the terminal is equal to 1:

if the terminal includes a bandwidth region, step 21: numbering physical resource blocks contained in the bandwidth region to obtain physical resource block indexes of the bandwidth region; step 22: determining resources occupied by CORESET in a bandwidth area and obtaining a CORESET resource allocation result; step 23: adding at least 1 bit physical resource block identification position in a CORESET resource allocation result to obtain configuration information, wherein the configuration information is bit data; step 24: sending the configuration information to a terminal through a wireless resource control signaling; step 25: the control terminal analyzes the configuration information to obtain the frequency domain position indicated by CORESET;

if the terminal includes N bandwidth regions, where N is an integer greater than or equal to 2, step 31: numbering the physical resource blocks contained in the N bandwidth areas in sequence to obtain the physical resource block indexes of each bandwidth area; step 32: determining resources occupied by CORESET in each bandwidth area and obtaining CORESET resource allocation results in each bandwidth area; step 33: adding at least 1 bit physical resource block identification position and M bit bandwidth region identification position in a CORESET resource allocation result to obtain configuration information, wherein the configuration information is bit data; therein, 2^MMore than or equal to N, and M is an integer;step 34: sending the configuration information to a terminal through a wireless resource control signaling; step 35: and the control terminal analyzes the configuration information to obtain the frequency domain position indicated by the CORESET.

Specifically, referring to fig. 1 and fig. 2, in the CORESET Resource allocation and indication method provided in the embodiment of the present application, it is determined that the terminal includes several BWPs through step 10, and if the terminal includes only one BWP, that is, the terminal operates under one BWP, and the BWP only occupies a part of the bandwidth in the system bandwidth, a Physical Resource Block (PRB) in the BWP is numbered through step 21, so as to obtain a PRB index based on the BWP for the PRB. After obtaining the PRB index, the resource occupied by the CORESET of the terminal is obtained through step 22, and a schematic diagram of the CORESET of the terminal occupying the frequency domain resource is obtained, for example, an occupied bit is represented by 1, and an unoccupied bit is represented by 0, and according to the value of each bit in the schematic diagram, the frequency domain resource allocation result of the CORESET can be obtained.

Since the terminal operates based on the BWP level, the PRB index is based on the BWP level, but normally the system full bandwidth also includes PRB indexes, for example, the system bandwidth is 100MHz, the subcarrier spacing is 30KHz, the full bandwidth includes 275 PRBs, and the PRB index of the full bandwidth is 0-274, in order to distinguish the PRB index of the BWP level from the PRB index of the full bandwidth level, a PRB identification bit is added to the frequency domain resource allocation result of CORESET through step 23, a bitmap (bitmap) of the CORESET is obtained, and the bitmap is used as the configuration information of the CORESET frequency domain resource of the terminal. By adding the PRB identification bit in the frequency domain resource allocation result of CORESET, the current index can be clearly shown to be the BWP-level PRB index, and the confusion with the full-bandwidth-level PRB index is avoided. After obtaining the configuration information of the terminal CORESET frequency domain resource, in step 24, a Radio Resource Control (RRC) is used to allocate the Radio resource and send the related signaling, and the configuration information is sent to the terminal. After receiving the configuration information, the terminal parses the received configuration information about the CORESET frequency domain resource in step 25 to obtain the frequency domain position indicated by the CORESET of the terminal.

Referring to fig. 1 and 3, when the terminal includes N BWPs, where N is an integer greater than or equal to 2, the terminal operates under the N BWPs, and the method for obtaining the Resource allocation result is the same as the method for obtaining the Resource allocation result when the terminal includes one BWP, and the Physical Resource Block (PRB) in the BWP is numbered in step 31 to obtain the PRB index of the PRB based on the BWP. Then, a schematic diagram that the frequency domain resources are occupied by the CORESET of each BWP in the terminal is obtained through step 32, so as to obtain the frequency domain resource allocation result of the CORESET in each BWP, where the frequency domain resource allocation result of the CORESET in each BWP is bit data.

Unlike the case where the terminal includes one BWP, since the terminal includes multiple BWPs, in addition to the terminal capable of identifying that the terminal operates based on the BWP level, an identifier capable of distinguishing each BWP in the terminal needs to be added, so that in step 33 in the present application, not only the PRB identification bits but also the M-bit BWP identification bits are added to obtain the bitmap of the CORESET, and the bitmap is used as the configuration information of the CORESET frequency domain resource of the terminal. It should be noted that, in order to avoid confusion between the PRB identification bit and the BWP identification bit, the PRB identification bit is usually set to be 1 bit, and the BWP identification bit is M bit, where 2M is greater than or equal to N, and M is an integer, and since N is an integer greater than or equal to 2, the value of M is greater than or equal to 2, that is, the BWP identification bit is at least 2 bits.

After obtaining the configuration information of the terminal CORESET frequency domain resource, the configuration information is sent to the terminal through step 34, as in the case where the terminal includes a BWP. Then, in step 35, the terminal is enabled to parse the received configuration information about the CORESET frequency domain resources to obtain the frequency domain position indicated by the CORESET of the terminal.

It should be noted that, after the frequency domain resources are configured by the system, the base station determines which resources are allocated to which terminals, and therefore, the resources occupied by the CORESET of the terminals in step 22 and step 32 are allocated by the base station. Fig. 2 and fig. 3 are only for explaining PRB identification bits and BWP identification bits, and are not limited to the positions of the PRB identification bits and BWP identification bits, and they may be located at the forefront or the very end of the configuration result, so long as the PRB identification bits are added at a certain position of the configuration result, it may indicate that the current index is the BWP-level PRB index, and avoid confusion with the full-bandwidth-level PRB index. BWP identification bits are added at another place to distinguish BWPs in the same terminal. In step 33, the time sequence of adding the PRB identification bits and the BWP identification bits is not limited, for example, the PRB identification bits may be added first and then the BWP identification bits are added, or the BWP identification bits may be added first and then the PRB identification bits are added.

According to the CORESET resource allocation and indication method, on the basis of the full-bandwidth PRB index, the BWP-level PRB index is increased, a terminal only containing one BWP can be supported, a terminal containing a plurality of BWPs can be supported, the BWP-level PRB index and the full-bandwidth-level PRB index are distinguished by increasing the PRB identification bit in the bitmap, confusion with the full-bandwidth-level PRB index is avoided, and therefore it is ensured that the indication of the frequency domain position of the subsequent CORESET is correct. When the terminal comprises a plurality of BWPs, the BWP identification bits are increased to accurately distinguish the BWPs, so that the indication of the frequency domain position occupied by CORESET under each BWP in the terminal is realized. The CORESET resource allocation and indication under one or more BWPs are supported, the application range is wide, and the frequency domain position of the CORESET is indicated through the BWP level index, so that the overhead of RRC signaling is reduced.

Optionally, referring to fig. 2 and fig. 3, in step 21, numbering the physical resource blocks included in the bandwidth region to obtain a physical resource block index of the bandwidth region, specifically: acquiring the bandwidth and the subcarrier interval occupied by the bandwidth region, calculating the number n of physical resource blocks contained in the bandwidth region under a time domain symbol according to the bandwidth and the subcarrier interval occupied by the bandwidth region, numbering the physical resource blocks in sequence according to 1-n, and acquiring the physical resource block index of the bandwidth region as 1-n.

Specifically, referring to fig. 2, because the BWP occupies only a part of the full bandwidth of the system, and the subcarrier spacing may also be different from the subcarrier spacing of the system, when acquiring the PRB index of the BWP in step 21, first, the bandwidth and subcarrier spacing occupied by the BWP need to be queried, and the number of PRBs included in the BWP is calculated according to the bandwidth and subcarrier spacing, for example, the BWP bandwidth is 20MHz, the subcarrier spacing is 60KHz, the number of subcarriers in the BWP is n1 ═ 20MHz/60KHz in a time domain symbol, and one PRB includes 12 subcarriers, so the number of PRBs is n1/12 ═ 27, and each PRB is numbered sequentially according to 1-27, that is to obtain the PRB index in the BWP is 1-27. Of course, when the PRBs are numbered, the PRBs may be numbered in other ways, for example, starting from 0 and ending at n-1, i.e., the PRB index is 0- (n-1).

It should be noted that the above-mentioned method for acquiring the PRB index based on the BWP in step 21 is also applicable to acquiring the PRB index based on the BWP level when the terminal includes multiple BWPs, and therefore, the method for acquiring the PRB index based on the BWP level in step 31 is not described herein again.

Optionally, fig. 4 is a flowchart illustrating obtaining a CORESET resource allocation result, fig. 5 is a schematic diagram illustrating that CORESET occupies frequency domain resources when a terminal includes a BWP, fig. 6 is a CORESET frequency domain resource bitmap corresponding to the embodiment in fig. 5, please refer to fig. 4-fig. 5, where in step 22, determining resources occupied by CORESET in a bandwidth region and obtaining a CORESET resource allocation result specifically includes: step 221: setting the granularity of the resource indication of the terminal as y, wherein the terminal comprises n/y bits; wherein, granularity represents 1 bit to indicate y physical resource blocks; step 222: taking the occupied bit as 1 and taking the unoccupied bit as 0; step 223: and obtaining a CORESET resource allocation result according to the value of each bit.

Specifically, referring to fig. 4 and fig. 5, when the CORESET resource allocation result is obtained in step 22, the granularity of the resource indication of the terminal is first set in step 221, for example, when the granularity of the resource indication is set to 6, it indicates that 1 bit indicates 6 PRBs, and thus, when the terminal includes 54 PRBs, the terminal includes 9 bits in total. In step 222, the occupied bit is assigned to 1, and the unoccupied bit is assigned to 0, and in step 223, the CORESET resource allocation result of the terminal is obtained according to the value of each bit, as shown in fig. 5, the resource allocation result corresponding to the schematic diagram of CORESET occupied frequency domain resources is (101001010). The information about the configuration of the CORESET frequency domain resources corresponding to the embodiment shown in fig. 5 can be obtained by adding the PRB identification bits to the configuration result, as shown in fig. 6. Of course, setting the granularity of the resource indication to be 6 is only a schematic description, and the granularity of the resource indication can be flexibly adjusted for different service types, so that performance requirements required by different services can be met.

Fig. 7 is a schematic diagram illustrating that the CORESET in each BWP occupies frequency domain resources when the terminal includes two BWPs, fig. 8 is a CORESET frequency domain resource bitmap corresponding to the embodiment of fig. 7, please refer to fig. 7, when the terminal includes multiple BWPs, the step of obtaining the CORESET resource allocation result in each BWP in step 32 is the same as the step 22, for example, the terminal 1 includes BWP0 and BWP1, where BWP0 occupies 10MHz, the subcarrier interval is 30KHz, and it includes 27 PRBs, and the PRB index is set to 0-26; BWP1 occupies 20MHz, the subcarrier spacing is 60KHz, it also contains 27 PRBs with PRB index of 0 ~ 26. Then, according to the method for obtaining the resource allocation result in step 22, the resource allocation results of BWP0 and BWP1 are obtained, for example, in the schematic diagram shown in fig. 7, BWP0 occupies

bits

0, 3, 6, and 8, BWP1 occupies

bits

1, 2, 5, and 6, and the CORESET resource allocation result is obtained as (100100101, 011001100). By adding the PRB identification bits and BWP identification bits to the configuration result, the CORESET frequency domain resource configuration information corresponding to the embodiment shown in fig. 7 can be obtained, as shown in fig. 8.

It should be noted that fig. 5 and fig. 6 are only schematic illustrations of frequency domain resources occupied by CORESET, and are not limited to the number of PRBs and the granularity, etc., in different embodiments, the number of PRBs needs to be specifically calculated according to the bandwidth and the subcarrier interval of BWP, and the granularity indicated by the resources may be specifically set according to actual situations, and when the bandwidth of BWP is large, the number of PRBs included therein is large, for example, in the full bandwidth, 273 PRBs are included therein, and the granularity is set to be 16, the resources occupied by CORESET need to be indicated by 17 bits. When the bandwidth of the BWP is small, the number of PRBs contained in the BWP is relatively small, for example, when the BWP contains 80 PRBs, the granularity may be set to 8, and then the resource occupied by the CORESET is indicated by 10 bits. When the bandwidth of the BWP is small, the granularity of the resource indication can be reduced, so that the CORESET frequency domain resource can be set more finely, thereby preventing the influence caused by different parameter sets of the BWP.

Alternatively, referring to fig. 7, when the terminal includes N bandwidth regions, the granularity of the resource indication of the N bandwidth regions in the same terminal is the same. Specifically, please refer to fig. 7, in this embodiment, the granularity of the resource indications of the N bandwidth regions in the same terminal is set to be the same, for example, the granularity of the resource indications of the BWP0 and the BWP1 in fig. 6 is both 6, that is, 1 bit indicates 6 PRBs, and the granularity of all BWPs in the same terminal is set to be the same, so as to avoid the problem of different resource indication overheads in the downlink control information due to different granularities, which is beneficial to reducing the overhead of the wireless resource signaling.

Optionally, referring to fig. 1 and fig. 6, for a terminal including a bandwidth region, in step 25, the terminal is controlled to analyze the configuration information to obtain a frequency domain position of CORESET, which specifically is: sending a command to a terminal to ensure that the terminal determines a field corresponding to each bit in the configuration information according to a protocol, wherein the field at least comprises a physical resource block identification area and a frequency domain position indication area; and obtaining the frequency domain position indicated by CORESET in the bandwidth area according to the bit data of the frequency domain position indication area.

Specifically, referring to fig. 1, when the configuration information is analyzed in step 25, an analysis command is sent to the terminal, after the terminal receives the analysis command, the terminal determines a field corresponding to each bit in the configuration information according to a protocol, where the field at least includes a PRB identification region and a frequency domain position indication region, for example, a first bit in fig. 6 is the PRB identification region, which includes a PRB identification bit, and a following bit indicates a frequency domain position indication region, and after the field indicating the frequency domain position indication region is obtained through analysis, a frequency domain position indicated by the terminal CORESET can be obtained according to a value of each bit of the field, for example, the frequency domain position indication region has 9 bits, and all bits are 1, which indicates that the CORESET occupies all PRBs; if only the first bit in the frequency domain position indication region is 1 and the terminal granularity is 6, it indicates that the CORESET occupies the first 6 PRBs, i.e., PRBs 0 to PRB 5.

Optionally, referring to fig. 1 and fig. 8, for a terminal including N bandwidth regions, the control terminal analyzes the configuration information in step 35 to obtain a frequency domain position of CORESET, which specifically is: sending a command to a terminal to ensure that the terminal determines fields corresponding to each bit in the configuration information according to a protocol, wherein the fields at least comprise a physical resource block identification area, a bandwidth area identification area and a frequency domain position indication area; and determining a current bandwidth area corresponding to the current configuration information according to the bandwidth area identification area, and obtaining the frequency domain position indicated by CORESET in the current bandwidth area according to the bit data of the indication area.

Specifically, referring to fig. 1, when parsing the configuration information in step 35, a parsing command is sent to the terminal, and after receiving the parsing command, the terminal determines, according to a protocol, a field corresponding to each bit in the configuration information, which is different from a terminal only including one BWP, and further includes a BWP flag in the configuration information of the terminal including a plurality of BWPs, so that the corresponding field includes a PRB identification region and a frequency domain position indication region, for example, the first two bits are the BWP identification region and the third bit is the PRB identification region in fig. 8, and the bit between the PRB identification region and the next BWP identification region represents the frequency domain position indication region of BWP0, a field representing the frequency domain position indication region corresponding to each BWP can be obtained through parsing, and the frequency domain position indicated by the CORESET corresponding to each BWP is obtained according to the value of each bit of the field, the specific analysis method of occupied frequency domain positions is similar to the analysis method when a BWP is included, and is not described herein again.

Based on the same inventive concept, the present application further provides a CORESET resource allocation and indication device, fig. 9 is a schematic structural diagram of the CORESET resource allocation and indication device provided in the embodiment of the present application, please refer to fig. 9, where the CORESET resource allocation and indication device 100 provided in the embodiment of the present application includes:

a determining module 110, configured to determine whether the number of bandwidth regions included in the terminal is equal to 1;

a physical resource block index obtaining module 120, configured to number physical resource blocks included in the bandwidth region to obtain a physical resource block index of the bandwidth region;

the allocation result obtaining module 130 is configured to determine resources occupied by the CORESET in the bandwidth region and obtain a CORESET resource allocation result;

a configuration information obtaining module 140, configured to add at least 1-bit physical resource block identifier to the CORESET resource allocation result to obtain configuration information when the terminal includes a bandwidth region; when the terminal comprises N bandwidth regions, the terminal is used for adding at least a 1-bit physical resource block identification bit and an M-bit bandwidth region identification bit into a CORESET resource allocation result to obtain configuration information; therein, 2^MMore than or equal to N, and M is an integer;

a sending module 150, configured to send the configuration information to the terminal through radio resource control signaling;

and the frequency domain position acquisition module 160 is configured to control the terminal to analyze the configuration information to acquire a frequency domain position indicated by the CORESET resource.

Specifically, referring to fig. 9, the CORESET resource allocation and indication apparatus 100 provided in the embodiment of the present application includes a determining module 110, a physical resource block index obtaining module 120, an allocation result obtaining module 130, and a configuration information obtaining module 140. When the device 100 operates, the determining module 110 first determines that the terminal includes several BWPs, and the physical resource block index obtaining module 120 numbers PRBs in one or more BWPs to obtain PRB indexes of the PRBs based on the BWPs. Then, the allocation result obtaining module 130 is used to obtain the resources occupied by the CORESET of the terminal, and obtain a schematic diagram of the CORESET of the terminal occupying the frequency domain resources, for example, an occupied bit is represented by 1, an unoccupied bit is represented by 0, and according to the value of each bit in the schematic diagram, the frequency domain resource allocation result of the CORESET can be obtained.

When the terminal only contains one BWP, the configuration information obtaining module 140 adds a PRB identification bit to the frequency domain resource allocation result of the CORESET, obtains a bitmap (bitmap) of the CORESET, and uses the bitmap as the configuration information of the CORESET frequency domain resource of the terminal. By adding the PRB identification bit in the frequency domain resource allocation result of CORESET, the current index can be clearly shown to be the BWP-level PRB index, and the confusion with the full-bandwidth-level PRB index is avoided. When a terminal includes N BWPs, where N is an integer greater than or equal to 2, the terminal operates under N BWPs, and needs to add an identifier capable of identifying that the terminal operates on a BWP level, and also adds an identifier capable of distinguishing each BWP in the terminal, so that for a terminal including multiple BWPs, the configuration information acquisition module 140 adds a PRB identifier and an M-bit BWP identifier in the resource allocation result to obtain a bitmap of the CORESET, and uses the bitmap as configuration information of the CORESET frequency domain resource of the terminal.

It should be noted that, in order to avoid confusion between the PRB identification bit and the BWP identification bit, the PRB identification bit is usually set to be 1 bit, and the BWP identification bit is M bit, where 2M is greater than or equal to N, and M is an integer, and since N is an integer greater than or equal to 2, the value of M is greater than or equal to 2, that is, the BWP identification bit is at least 2 bits.

Referring to fig. 9, the CORESET resource allocation and indication apparatus 100 according to the embodiment of the present application further includes a sending module 150 and a frequency domain location obtaining module 160, and after obtaining the configuration information, the sending module 150 allocates the radio resource and sends the related signaling by using RRC, and sends the configuration information to the terminal. Then, through the frequency domain position obtaining module 160, the control terminal analyzes the received configuration information about the CORESET frequency domain resource, and obtains the frequency domain position indicated by the CORESET of the terminal.

The CORESET resource allocation and indication device 100 provided by the application increases the BWP-level PRB index on the basis of the full-bandwidth PRB index, and can support both a terminal including only one BWP and a terminal including multiple BWPs, and distinguishes the BWP-level PRB index and the full-bandwidth-level PRB index by increasing the PRB identification bits in the bitmap, thereby avoiding confusion with the full-bandwidth-level PRB index, and ensuring that the subsequent CORESET frequency domain position indication is correct. When the terminal comprises a plurality of BWPs, the BWP identification bits are increased to accurately distinguish the BWPs, so that the indication of the frequency domain position occupied by CORESET under each BWP in the terminal is realized. The CORESET resource allocation and indication under one or more BWPs are supported, the application range is wide, and the frequency domain position of the CORESET is indicated through the BWP level index, so that the overhead of RRC signaling is reduced.

Optionally, referring to fig. 9, the physical resource block index obtaining module 120 is further configured to obtain a bandwidth and a subcarrier interval occupied by a bandwidth region, calculate the number n of physical resource blocks included in the bandwidth region under one time domain symbol according to the bandwidth and the subcarrier interval occupied by the bandwidth region, and number the physical resource blocks according to 1-n in sequence, so as to obtain the physical resource block index of the bandwidth region as 1-n.

Specifically, because BWP only occupies a part of the full bandwidth of the system, and the subcarrier spacing may also be different from the subcarrier spacing of the system, when acquiring the PRB index of the BWP, first, it is necessary to query the bandwidth occupied by the BWP and the subcarrier spacing, and calculate the number of PRBs included in the BWP according to the bandwidth and the subcarrier spacing, for example, the BWP bandwidth is 20MHz, the subcarrier spacing is 60KHz, the number of subcarriers in the BWP is n 1-20 MHz/60KHz, and one PRB includes 12 subcarriers, so the number of PRBs is n 1/12-27, and each PRB is numbered in sequence according to 1-27, that is, the PRB index in the BWP is 1-27. Of course, when the PRBs are numbered, the PRBs may be numbered in other ways, for example, starting from 0 and ending at n-1, i.e., the PRB index is 0- (n-1).

Optionally, fig. 10 is another schematic structural diagram of the CORESET resource allocation and indication apparatus 100 provided in the embodiment of the present application, please refer to fig. 10, where the CORESET resource allocation and indication apparatus 100 provided in the embodiment of the present application further includes: the granularity setting module 180 is configured to set the granularity of the resource indication of the terminal to y, and the terminal includes n/y bits; wherein, granularity represents 1 bit to indicate y physical resource blocks; an allocation result obtaining module 130, configured to take an occupied bit to be 1 and take an unoccupied bit to be 0; and obtaining a CORESET resource allocation result according to the value of each bit.

Specifically, when the CORESET resource allocation result is obtained, the granularity of the resource indication of the terminal is first set by the granularity setting module 180, for example, when the granularity of the resource indication is set to 6, it indicates that 1 bit indicates 6 PRBs, and thus, when the terminal includes 54 PRBs, the terminal includes 9 bits in total. The allocation result obtaining module 130 assigns occupied bits to 1 and unoccupied bits to 0, and obtains the CORESET resource allocation result of the terminal according to the value of each bit. It should be noted that the setting of the granularity of the resource indication to be 6 is only a schematic illustration, and for different service types, the granularity of the resource indication can be flexibly adjusted, so that performance requirements required by different services can be met.

Optionally, referring to fig. 10, when the terminal includes N bandwidth areas, the granularity setting module 180 is further configured to set the granularity of the resource indication of the N bandwidth areas in the same terminal to be the same. Specifically, please refer to fig. 10, in this embodiment, the granularity of the resource indications of the N bandwidth regions in the same terminal is set to be the same through the granularity setting module 180, for example, a certain terminal includes terminals BWP0 and BWP1, and the granularity of the resource indications of BWP0 and BWP1 is set to be 6, that is, 1 bit indicates 6 PRBs, and the granularity of all BWPs in the same terminal is set to be the same, so as to avoid the problem of different resource indication overheads in the downlink control information due to different granularities, which is beneficial to reducing the overhead of the wireless resource signaling.

According to the embodiments, the application has the following beneficial effects:

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. A CORESET resource allocation and indication method is characterized by comprising the following steps:

2. The CORESET resource allocation and indication method according to claim 1, wherein the physical resource blocks included in the bandwidth region are numbered to obtain a physical resource block index of the bandwidth region, specifically:

3. The method for CORESET resource allocation and indication according to claim 2, wherein determining resources occupied by CORESET in the bandwidth region and obtaining a CORESET resource allocation result specifically comprises:

4. The CORESET resource allocation and indication method according to claim 1, wherein when the terminal comprises N bandwidth regions, the granularity of resource indication of the N bandwidth regions in the same terminal is the same.

5. The CORESET resource allocation and indication method according to claim 1, wherein for a terminal comprising one bandwidth region,

6. The CORESET resource allocation and indication method according to claim 1, wherein for a terminal comprising N bandwidth regions,

7. A CORESET resource allocation and indication apparatus, comprising:

8. CORESET resource allocation and indication device according to claim 7,

9. The CORESET resource allocation and indication apparatus of claim 8, further comprising:

10. CORESET resource allocation and indication device according to claim 9,