CN112787781B

CN112787781B - Resource allocation method, resource determination method, network equipment and terminal

Info

Publication number: CN112787781B
Application number: CN201911087409.0A
Authority: CN
Inventors: 张轶; 夏亮; 李岩; 王飞
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2024-01-23
Anticipated expiration: 2039-11-08
Also published as: CN112787781A

Abstract

The embodiment of the invention provides a resource allocation method, a resource determination method, network equipment and a terminal. The resource allocation method comprises the following steps: transmitting downlink control information DCI to a terminal, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M modulation coding strategies MCS, and the second indication information is used for indicating all frequency domain resources used by one or M physical downlink shared channels PDSCH, wherein M is an integer greater than or equal to 1. The scheme of the invention effectively reduces DCI overhead; the spectral efficiency is improved.

Description

Resource allocation method, resource determination method, network equipment and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource allocation method, a resource determination method, a network device, and a terminal.

Background

In order to improve reliability of URLLC (high reliability low latency traffic) transmission, multi-TRP (multiple transmission reception point) transmission is supported, i.e. multiple TRPs transmit the same data packet, to obtain additional power gain. When transmitting URLLC service with multiple TRP, there are three schemes of SDM (space division multiplexing), FDM (frequency division multiplexing) and TDM (time division multiplexing), and the operation modes of the FDM scheme are as follows: between the plurality of TRPs is idea-backhaul; PDCCH (physical downlink control channel) is transmitted by only 1 TRP; the PDSCH (physical downlink shared channel) is transmitted by the plurality of TRPs, and the PDSCH of the plurality of TRPs uses the same DMRS (modem reference signal) port, the same time domain resource, and occupies different frequency domain resources, that is, FDM.

In another embodiment, the NR PDSCH resource allocation scheme uses DCI format 1_1 (downlink control information format 1_1) allocation, MCS (modulation coding scheme): at most two Code words may be scheduled, and MCS for different CWs may indicate respectively: for transport block 1 (transport block 1), 5bitsMCS; for transport block 2 (transport block 2), 5bits MCS;

frequency domain resource allocation (Frequency Domain Resource Allocation, FDRA): the method is divided into a resource allocation type 0 and a resource allocation type 1:

resource allocation type 0: the PDSCH frequency domain resources are discontinuously distributed, and the frequency domain resources of one BWP (bandwidth part) are divided into N RBGs (resource block groups), and indicated by a bitmap (bit map) of N bits, for example 10010011 indicates that the PDSCH uses the 1,4,7,8 th RBG;

resource allocation type 1: PDSCH frequency domain resource continuous distribution byThe bits indicate the starting PRB (physical resource block) occupied by the PDSCH and the total number of PRBs occupied,

when performing the URLLC service in the manner of multiple TRP of a single physical downlink control channel, the FDM scheme needs to schedule PDSCH transmitted by multiple TRPs with one PDCCH, i.e. one DCI carries PDSCH resource allocation of two TRPs, which cannot be achieved in the prior art, and needs to make additional design.

Disclosure of Invention

The invention provides a resource allocation method, a resource determination method, network equipment and a terminal. DCI overhead is effectively reduced; compared with the direct provision of a plurality of transmission and reception points TRP, the method and the device have the advantages that equal frequency domain resources are used, and spectral efficiency is improved.

In order to solve the technical problems, the embodiment of the invention provides the following scheme:

a resource allocation method applied to a network device, the method comprising:

transmitting downlink control information DCI to a terminal, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M modulation coding strategies MCS, and the second indication information is used for indicating all frequency domain resources used by one or M physical downlink shared channels PDSCH, wherein M is an integer greater than or equal to 1.

Optionally, the second indication information is configured to indicate all frequency domain resources used by the M physical downlink shared channels PDSCH, including:

the second indication information indicates all N resource block groups RBG occupied by M PDSCH in a bit bitmap mode; or,

the second indication information indicates that all physical resource blocks PRB occupied by the M PDSCH are consecutive N PRBs starting from the first predetermined PRB, where N is an integer greater than or equal to 1.

Optionally, the second indication information is configured to indicate all frequency domain resources used by one downlink transmission, including:

the second indication information indicates that physical resource blocks PRB used for one physical downlink shared channel PDSCH are consecutive N PRBs starting from a second predetermined PRB, where N is an integer greater than or equal to 1.

The embodiment of the invention also provides a method for determining the resources, which is applied to the terminal and comprises the following steps:

receiving Downlink Control Information (DCI) sent by network equipment, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M Modulation Coding Strategies (MCS), the second indication information is used for indicating all frequency domain resources used by one or M Physical Downlink Shared Channels (PDSCHs), and M is an integer greater than or equal to 1;

and according to the downlink control information, determining frequency domain resources occupied by the PDSCH of the M physical downlink shared channels respectively.

Optionally, determining, according to the downlink control information, frequency domain resources occupied by the M physical downlink shared channels PDSCH respectively includes:

according to the M MCSs, determining the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by the M physical downlink shared channels PDSCH;

And determining RBGs or PRBs respectively occupied by the M PDSCHs.

Optionally, determining, according to the M MCSs, the number of resource block groups RBGs or the number of physical resource blocks PRBs occupied by the M physical downlink shared channels PDSCH respectively includes:

according to the formula:or->

The RBG number or PRB number Ni occupied by the ith PDSCH is determined, i= … M-1, N is all RBG numbers or all PRB numbers occupied by M PDSCH, the spectrum effect SE=code rate multiplied by modulation order/1024, SEi is the spectrum effect corresponding to the ith MCS, SEj is the spectrum effect corresponding to the jth MCS, and the code rate and the modulation order are determined according to the M MCS indicated by downlink control information DCI.

Optionally, determining the number of resource block groups RBGs or the number of physical resource blocks PRBs occupied by the M physical downlink shared channels PDSCH respectively further includes:

by passing throughAnd determining the RBG number or the PRB number occupied by the Mth PDSCH, wherein Nj is the frequency domain resource number occupied by the jth PDSCH.

Optionally, when the second indication information indicates all N resource block groups RBG occupied by the M PDSCH in a bit map manner, N is an integer greater than or equal to 1; the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

all N RBGs occupied by the M PDSCHs are numbered as 1,2 in sequence First Ni RBGs, i= … M；

Or,

all N RBGs occupied by M PDSCHs are numbered as 1,2 in sequence, N is taken, the greatest common divisor of Ni is taken as P, i= … M, the N RBGs are equally divided into P groups, and the ith PDSCH occupies the P group slaveThe first Ni/P RBGs, p=1, 2 … P.

Optionally, when all physical resource blocks PRB occupied by the M PDSCH of the second indication information are N consecutive PRBs starting from the first predetermined PRB, N is an integer greater than or equal to 1; the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

ith PDSCH occupancyThe first Ni PRBs, i= … M, PRBs being the first predetermined PRB; or,

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to determine by means of a predefined protocol, or a higher layer signaling configuration on the network side, or a predefined protocol/network side configuration of an offset value set, and by means of a physical layer downlink control signaling indication of one of them, PRBs are first predetermined PRBs,the total number of PRBs contained for the active bandwidth portion BWP.

Optionally, determining the number of PRBs occupied by the M PDSCHs respectively according to the M MCSs includes:

according to the formula:or->

Determining the number Ni of Physical Resource Blocks (PRBs) occupied by an ith PDSCH, wherein i= … M-1, N is the total RBG number or total PRB number occupied by M PDSCH, the spectrum effect SE=code rate multiplied by modulation order/1024, SEi is the spectrum effect corresponding to the ith MCS, SEj is the spectrum effect corresponding to the jth MCS, and the code rate and the modulation order are determined according to the M MCS indicated by Downlink Control Information (DCI).

Optionally, determining the number of PRBs occupied by the M PDSCHs respectively further includes:

by passing throughAnd determining the number of PRBs occupied by the Mth PDSCH, wherein Nj is the number of physical resource blocks PRBs occupied by the j-th PDSCH.

Optionally, the second indication information indicates that a physical resource block PRB occupied by the first PDSCH is N1 consecutive PRBs starting from a second predetermined PRB, and determining the number of PRBs occupied by the M PDSCHs respectively includes:

ith PDSCH occupancyThe first Ni PRBs, i= … M, PRBs being the second predetermined PRB; or,

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to determine by means of a predefined protocol, or by means of a higher layer signaling configuration on the network side, or by means of a predefined protocol/network side configuration of an offset value set, and by means of a physical layer downlink control signaling indication of one of them, PRBs are second predetermined PRBs,all PRBs contained for active BWPA number.

The embodiment of the invention also provides a resource allocation device, which comprises:

the receiving and transmitting module is used for sending downlink control information DCI to the terminal, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M modulation coding strategies MCS, and the second indication information is used for indicating all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1.

Optionally, the second indication information is configured to indicate all frequency domain resources used by one downlink transmission, including: the second indication information indicates that physical resource blocks PRB used for one physical downlink shared channel PDSCH are consecutive N PRBs starting from a second predetermined PRB, where N is an integer greater than or equal to 1.

The embodiment of the invention also provides a network device, which comprises:

the system comprises a transceiver, a terminal and a base station, wherein the transceiver is used for sending downlink control information DCI to the terminal, the DCI carries first indication information and second indication information, the first indication information is used for indicating M modulation coding strategies MCS, the second indication information is used for indicating all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1.

the second indication information indicates all N resource block groups RBG occupied by M PDSCH in a bit bitmap mode; or alternatively

The embodiment of the invention also provides a device for determining the resource, which is applied to the terminal and comprises the following steps:

a transceiver module, configured to receive downlink control information DCI sent by a network device, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1;

And the processing module is used for determining frequency domain resources respectively occupied by the M physical downlink shared channels PDSCH according to the downlink control information.

Optionally, the processing module determines the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by M physical downlink shared channels PDSCH according to M MCSs; and determining RBGs or PRBs respectively occupied by the M PDSCHs.

according to the formula:or->

all N RBGs occupied by the M PDSCHs are numbered as 1,2 in sequenceThe first Ni RBGs, i= … M;

or,

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to determine by means of a predefined protocol, or a higher layer signaling configuration on the network side, or a predefined protocol/network side configuration of an offset value set, and by means of a physical layer downlink control signaling indication of one of them, PRBs are first predetermined PRBs, The total number of PRBs contained for the active bandwidth portion BWP.

according to the formula:or->

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to determine by means of a predefined protocol, or by means of a higher layer signaling configuration on the network side, or by means of a predefined protocol/network side configuration of an offset value set, and by means of a physical layer downlink control signaling indication of one of them, PRBs are second predetermined PRBs, The total number of PRBs contained for the activated BWP.

The embodiment of the invention also provides a terminal, which comprises:

a transceiver, configured to receive downlink control information DCI sent by a network device, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1;

and the processor is used for determining frequency domain resources respectively occupied by the M physical downlink shared channels PDSCH according to the downlink control information.

Optionally, the processor determines the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by M physical downlink shared channels PDSCH according to M MCSs; and determining RBGs or PRBs respectively occupied by the M PDSCHs.

according to the formula:or->

or,

all N RBGs occupied by M PDSCHs are numbered as 1,2 in sequence, N is taken, the greatest common divisor of Ni is taken as P, i= … M, the N RBGs are equally divided into P groups, and the ith PDSCH occupiesGroup p slaveThe first Ni/P RBGs, p=1, 2 … P.

Optionally, when all physical resource blocks PRB occupied by the M PDSCH of the second indication information are N consecutive PRBs starting from the first predetermined PRB, N is an integer greater than or equal to 1;

the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

according to the formula:or->

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to determine by means of a predefined protocol, or by means of a higher layer signaling configuration on the network side, or by means of a predefined protocol/network side configuration of an offset value set, and by means of a physical layer downlink control signaling indication of one of them, PRBs are second predetermined PRBs,the total number of PRBs contained for the activated BWP.

The embodiment of the invention also provides a communication device, which comprises: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above.

Embodiments of the present invention also provide a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform a method as described above.

The scheme of the invention at least comprises the following beneficial effects:

according to the scheme, downlink control information DCI is sent to a terminal, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M modulation coding strategies MCS, and the second indication information is used for indicating all frequency domain resources used by one or M physical downlink shared channels PDSCH, wherein M is an integer greater than or equal to 1; the terminal determines frequency domain resources occupied by the PDSCH of M physical downlink shared channels according to the downlink control information, and compared with the frequency domain resources directly indicating a plurality of TRPs in the PDCCH, DCI overhead is effectively reduced; compared with directly providing a plurality of TRPs to use equal frequency domain resources, the spectrum efficiency is improved.

Drawings

FIG. 1 is a flow chart of a resource allocation method according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for determining resources according to an embodiment of the present invention;

FIG. 3 is a block diagram of a resource allocation apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a network device according to an embodiment of the present invention;

FIG. 5 is a block diagram of a determination device of an embodiment of the present invention;

fig. 6 is a schematic diagram of a terminal architecture according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides a resource allocation method, applied to a network device, where the method includes:

step 11, downlink control information DCI is sent to a terminal, where the DCI carries first indication information and second indication information, the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1.

In this embodiment of the present invention, downlink control information DCI is sent to a terminal, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1; the terminal determines frequency domain resources occupied by the PDSCH of M physical downlink shared channels according to the downlink control information, and compared with the frequency domain resources directly indicating a plurality of TRPs in the PDCCH, DCI overhead is effectively reduced; compared with directly providing a plurality of TRPs to use equal frequency domain resources, the spectrum efficiency is improved.

In an optional embodiment of the present invention, the second indication information is configured to indicate all frequency domain resources used by the M physical downlink shared channels PDSCH, including:

The specific implementation scheme of this embodiment is as follows: one TRP of a plurality of TRPs (transmission reception points, i.e., the network device described above) transmits downlink control information DCI, and PDSCH of M TRPs is scheduled to be transmitted in an FDM manner;

content included in the downlink control information DCI:

first indication information for indicating MCSs used by the M TRPs, such as MCS1, MCS2 … MCSm;

second indication information for indicating all frequency domain resources occupied by PDSCH of M TRPs:

when the resource allocation type 0 is used, indicating a total of N RBGs occupied by PDSCH of M TRPs;

when the resource allocation type 1 is used, that is, N total PRBs occupied by PDSCH of M TRPs are indicated, N consecutive PRBs starting from PRBs;

the terminal determines frequency domain resources respectively occupied by PDSCH of M TRPs according to the received downlink control information:

a) Implicitly determining the proportion of frequency domain resources occupied by the PDSCH transmitted by the M TRPs according to MCS information used by the PDSCH transmitted by the M TRPs: the RBG number Ni or PRB number Ni occupied by PDSCHi transmitted by TRPi is (i= … M-1):

or->

Here, i= … M-1, n is all RBG numbers or all PRB numbers occupied by M PDSCH, spectrum effect se=code rate×modulation order/1024, sei is spectrum effect corresponding to the ith MCS, SEj is spectrum effect corresponding to the jth MCS, and the code rate and modulation order are determined according to M MCSs indicated by downlink control information; here, since the data amounts transmitted by the plurality of TRPs are the same, i.e., have the same TB (transport block) size, the time domain resources occupied by the two TRPs are identical to the DMRS ports; code rate, modulation order Qm, spectral efficiency se=code rate Qm/1024 can be determined according to the MCS; determining the total RE number according to a time domain resource allocation domain (TDRA) and a frequency domain resource allocation domain (FDRA) in the DCI; the following formulas are required to be satisfied among the TB size, the code rate, the modulation order and the total RE number:

Therefore, when the plurality of TRPs have the same TB size and CRC, the total RE num occupied by the PDSCH transmitted by the plurality of TRPs can be determined according to the MCS used by the plurality of TRPs; since the plurality of TRPs occupy the same time domain resource, the ratio of frequency domain resources (RBG (resource block group)/PRB (physical resource block)) occupied by PDSCH transmitted by the plurality of TRPs can be determined according to MCS used by the plurality of TRPs;

b) The frequency domain resource RBG number NM or PRB number NM occupied by the PDSCHM of the mth TRP transmission is:

c) The number of RBGs or PRBs occupied by the PDSCH transmitted by M TRPs is determined through A) and B), and on the basis, the RBGs or PRBs occupied by the PDSCH transmitted by each TRP are determined according to a predefined rule or an indication of a network side, for example:

for example, for resource allocation type 1, TRP1 occupies the N1 PRBs starting from PRBs, TRP2 occupies the N2 PRBs+N1 starting from PRBs … TRPsThe first Ni PRBs (i= … M);

for example, for resource allocation type 1, TRP1 occupies the N1 PRBs that the PRBs begin with, and TRPI occupiesFirst Ni PRBs (i= … M), said +.>An offset value set can be configured in a protocol predefined mode, a network side high-layer signaling configuration mode or a protocol predefined/network side, and one of the offset value sets is selected through physical layer downlink control signaling >The total number of PRBs contained for the active bandwidth portion BWP.

For example, for resource allocation type 0, N total RBGs occupied by PDSCH of M TRPs determined by DCI are numbered sequentially as 1,2, ·n, TRP1 occupies N1 PRBs from PRBs, TRP2 occupies N2 PRBs … TRPi from prbs+n1The first Ni PRBs (i= … M);

for example, for the resource allocation type 0, N total RBGs occupied by PDSCH of M TRPs determined by DCI are numbered sequentially as 1,2,..n, taking the greatest common divisor of Ni as P, equally dividing the N RBGs into P groups, TRP1 occupying the first N1/P RBGs of each group, TRP2 occupying the next N2/P RBGs … of each group.

D) The terminal receives PDSCH (physical downlink shared channel) transmitted by M TRPs on the determined frequency domain resources.

In another optional embodiment of the present invention, the second indication information is used to indicate all frequency domain resources used by one downlink transmission, and includes:

Content included in the downlink control information DCI:

second indication information for indicating frequency domain resources occupied by the PDSCH of the first TRP, that is, indicating total N1 PRBs occupied by the PDSCH of the first TRP when the resource allocation type 1 is used, and consecutive N1 PRBs starting from PRBs;

a) Implicitly determining the proportion of frequency domain resources occupied by the PDSCH transmitted by the M TRPs according to MCS information used by the PDSCH transmitted by the M TRPs: the number of PRBs occupied by PDSCHi transmitted by TRPi, ni, is (i= … M-1):

or->

Here, N is all RBG numbers or all PRB numbers occupied by M PDSCH, the spectral efficiency se=code rate×modulation order/1024, sei is the spectral efficiency corresponding to the ith MCS, SEj is the spectral efficiency corresponding to the jth MCS, and the code rate and modulation order are determined according to the M MCSs indicated by the base station through the downlink control information;

b) The number of frequency domain resources PRB occupied by the PDSCHM of the mth TRP transmission NM is:

c) The number of PRBs occupied by the PDSCH transmitted by M TRPs has been determined by A) and B), on the basis of which the PRBs occupied by the PDSCH transmitted by each TRP are determined according to predefined rules or indications on the network side, for example:

For example, for resource allocation type 1, TRPI occupancyFirst Ni PRBs (i= … M), said +.>An offset value set can be configured in a protocol predefined mode, a network side high-layer signaling configuration mode or a protocol predefined/network side, and one of the offset value sets is selected through physical layer downlink control signaling>The total number of PRBs contained for the activated BWP.

D) The terminal receives PDSCH transmitted by M TRPs on the determined frequency domain resources.

The above embodiment of the present invention schedules multiple TRPs through one PDCCH, transmits PDSCH in FDM mode, and the terminal implicitly obtains frequency domain resources used by two TRPs according to MCS indication. Compared with the frequency domain resource which directly indicates a plurality of TRPs in the PDCCH, DCI overhead is effectively reduced; compared with directly providing a plurality of TRPs to use equal frequency domain resources, the spectrum efficiency is improved.

As shown in fig. 2, the embodiment of the present invention further provides a method for determining resources, which is applied to a terminal, where the method includes:

step 21, receiving downlink control information DCI sent by a network device, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1;

Step 22, determining frequency domain resources occupied by the PDSCH of each of the M physical downlink shared channels according to the downlink control information.

In this embodiment of the present invention, by receiving downlink control information DCI sent by a network device, the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1; the terminal determines frequency domain resources occupied by the PDSCH of M physical downlink shared channels according to the downlink control information, and compared with the frequency domain resources directly indicating a plurality of TRPs in the PDCCH, DCI overhead is effectively reduced; compared with directly providing a plurality of TRPs to use equal frequency domain resources, the spectrum efficiency is improved.

In an alternative embodiment of the present invention, step 22 may include:

step 221, determining the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by M physical downlink shared channels PDSCH according to the M MCSs;

in step 222, RBGs or PRBs occupied by the M PDSCHs are determined.

Here, step 221 may include:

According to the formula:or->

Determining the RBG number or PRB number Ni occupied by the ith PDSCH, wherein i= … M-1, N is all RBG numbers or all PRB numbers occupied by M PDSCH, the spectrum effect SE=code rate multiplied by modulation order/1024, SEi is the spectrum effect corresponding to the ith MCS, SEj is the spectrum effect corresponding to the jth MCS, and the code rate and the modulation order are determined according to the M MCS indicated by downlink control information DCI;

In one implementation manner, optionally, when the second indication information indicates all N resource block groups RBG occupied by the M PDSCH in a bit map manner, N is an integer greater than or equal to 1; step 222 may include:

step 2221, numbering all N RBGs occupied by the M PDSCH as 1,2, N, and the i-th PDSCHThe first Ni RBGs, i= … M;

or,

step 2222, numbering all N RBGs occupied by M PDSCH sequentially as 1,2, & N, taking the greatest common divisor of Ni as P, i= … M, equally dividing the N RBGs into P groups, and the ith PDSCH occupying the P-th group fromThe first Ni/P RBGs, p=1, 2 … P.

In another implementation manner, optionally, when all physical resource blocks PRB occupied by the M PDSCHs of the second indication information are N consecutive PRBs starting from the first predetermined PRB, N is an integer greater than or equal to 1; step 222 includes:

Step 2223, ith PDSCH occupationThe first Ni PRBs, i= … M, PRBs being the first predetermined PRB; or,

step 2224, ith PDSCH occupationThe first Ni PRBs, i= … M,in order to confirm by a predefined protocol mode, a higher layer signaling configuration mode at a network side, or a predefined protocol/network side configuration offset value set, and one of the offset value sets is indicated by a downlink control signaling of a physical layer, the PRBs are first preset PRB, <' > and->The total number of PRBs contained for the active bandwidth portion BWP.

The specific implementation scheme of this embodiment is as follows:

or->

In an alternative embodiment of the present invention, step 221 may include:

according to the formula:or->

Determining the number Ni of Physical Resource Blocks (PRBs) occupied by an ith PDSCH, wherein i= … M-1, N is all RBG numbers or all PRBs occupied by M PDSCHs, the spectrum effect SE=code rate multiplied by modulation order/1024, SEi is the spectrum effect corresponding to the ith MCS, SEj is the spectrum effect corresponding to the jth MCS, and the code rate and the modulation order are determined according to the M MCS indicated by Downlink Control Information (DCI);

The specific implementation scheme of this embodiment is as follows:

or->/>

In the embodiment of the invention, a plurality of TRPs are scheduled through one PDCCH, the PDSCH is sent in an FDM mode, and the terminal implicitly obtains frequency domain resources used by two TRPs according to the MCS indication. Compared with the frequency domain resource which directly indicates a plurality of TRPs in the PDCCH, DCI overhead is effectively reduced; compared with directly providing a plurality of TRPs to use equal frequency domain resources, the spectrum efficiency is improved.

As shown in fig. 3, an embodiment of the present invention further provides a resource allocation apparatus 30, including:

The transceiver module 31 is configured to send downlink control information DCI to a terminal, where the DCI carries first indication information and second indication information, the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1.

It should be noted that the apparatus is an apparatus corresponding to the method shown in fig. 1, and all implementation manners in the foregoing method embodiment are applicable to the embodiment of the apparatus, so that the same technical effects can be achieved, and the apparatus may further include a processing module 32, configured to process information received and transmitted by the transceiver module 31, and so on.

As shown in fig. 4, an embodiment of the present invention further provides a network device 40, including:

a transceiver 41, configured to send downlink control information DCI to a terminal, where the DCI carries first indication information and second indication information, the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1.

It should be noted that, the network device is a network device corresponding to the method shown in fig. 1, and all implementation manners in the method embodiment are applicable to the embodiment of the device, so that the same technical effects can be achieved. The network device may further include: a memory 43; the transceiver 41 and the processor 42, and the transceiver 41 and the memory 43 may be connected through a bus interface, and the functions of the transceiver 41 may be implemented by the processor 42, and the functions of the processor 42 may also be implemented by the transceiver 41.

As shown in fig. 5, the embodiment of the present invention further provides a device 50 for determining resources, which is applied to a terminal, where the device 50 includes:

a transceiver module 51, configured to receive downlink control information DCI sent by a network device, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1;

and the processing module 52 is configured to determine frequency domain resources respectively occupied by the M physical downlink shared channels PDSCH according to the downlink control information.

Optionally, the processing module 52 determines, according to the M MCSs, the number of resource block groups RBGs or the number of physical resource blocks PRBs occupied by the M physical downlink shared channels PDSCH respectively; and determining RBGs or PRBs respectively occupied by the M PDSCHs.

according to the formula:or->

Optionally, when the second indication information indicates all N resource block groups RBG occupied by the M PDSCH in a bit map manner, N is an integer greater than or equal to 1;

all N RBGs occupied by the M PDSCHs are numbered as 1,2 in sequence The first Ni RBGs, i= … M;

or,

ith PDSCH occupancyThe first Ni PRBs, i= … M, PRBs being the first predetermined PRB; or alternatively

according to the formula:or->

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>Predefined for passing through a protocolOr the higher layer signaling configuration of the network side, or the protocol predefining/network side configuring an offset value set, and then determining by the way that one of the physical layer downlink control signaling is indicated, the PRBs are the second predetermined PRBs,the total number of PRBs contained for the activated BWP.

It should be noted that the device is a device corresponding to the method shown in fig. 2, and all implementation manners in the method embodiment are applicable to the device embodiment, so that the same technical effects can be achieved.

As shown in fig. 6, an embodiment of the present invention further provides a terminal 60, including:

a transceiver 61, configured to receive downlink control information DCI sent by a network device, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, and M is an integer greater than or equal to 1;

And the processor 62 is configured to determine frequency domain resources respectively occupied by the M physical downlink shared channels PDSCH according to the downlink control information.

Optionally, the processor 62 determines, according to the M MCSs, the number of resource block groups RBGs or the number of physical resource blocks PRBs occupied by the M physical downlink shared channels PDSCH respectively; and determining RBGs or PRBs respectively occupied by the M PDSCHs.

according to the formula:or->

or,

ith PDSCH occupancyFirst Ni PRBs, i=1 …M, PRBs are first predetermined PRBs; or alternatively

according to the formula:or->

It should be noted that, the terminal is a terminal corresponding to the method shown in fig. 2, and all implementation manners in the method embodiment are applicable to the embodiment of the terminal, so that the same technical effects can be achieved. The terminal may further include: a memory 63; the transceiver 61 and the processor 62, and the transceiver 61 and the memory 63 may be connected through a bus interface, and the functions of the transceiver 61 may be implemented by the processor 62, and the functions of the processor 62 may be implemented by the transceiver 61.

The embodiment of the invention also provides a communication device, which comprises: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above with reference to fig. 1 or fig. 2. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effects can be achieved.

Embodiments of the present invention also provide a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform a method as described above. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effect can be achieved.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

Furthermore, it should be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order of description, but are not necessarily performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those of ordinary skill in the art that all or any of the steps or components of the methods and apparatus of the present invention may be implemented in hardware, firmware, software, or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, as would be apparent to one of ordinary skill in the art after reading this description of the invention.

The object of the invention can thus also be achieved by running a program or a set of programs on any computing device. The computing device may be a well-known general purpose device. The object of the invention can thus also be achieved by merely providing a program product containing program code for implementing said method or apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is apparent that the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. The steps of executing the series of processes may naturally be executed in chronological order in the order described, but are not necessarily executed in chronological order. Some steps may be performed in parallel or independently of each other.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. A method of resource allocation, for use with a network device, the method comprising:

transmitting downlink control information DCI to a terminal, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M modulation coding strategies MCS, and the second indication information is used for indicating all frequency domain resources used by one or M physical downlink shared channels PDSCH, wherein M is an integer greater than or equal to 1; the terminal determines frequency domain resources occupied by M PDSCH respectively according to the downlink control information; the determining, by the terminal, frequency domain resources occupied by M PDSCH respectively according to the downlink control information includes: according to the M MCSs, determining the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by the M physical downlink shared channels PDSCH;

the determining, according to the M MCSs, the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by the M physical downlink shared channels PDSCH includes:

According to the formula:or->

According to M MCS, determining RBG number or PRB number Ni occupied by M-1 PDSCH, i= … M-1, N is all RBG number or all PRB number occupied by M PDSCH, spectrum effect SE=code rate×modulation order/1024, SEi is spectrum effect corresponding to ith MCS, SEj is spectrum effect corresponding to jth MCS, and code rate and modulation order are determined according to M MCS indicated by downlink control information DCI.

2. The resource allocation method according to claim 1, wherein the second indication information is used to indicate all frequency domain resources used by the M PDSCH, including:

3. The resource allocation method according to claim 1, wherein the second indication information is used to indicate all frequency domain resources used by one downlink transmission, and includes:

4. A method for determining resources, which is applied to a terminal, the method comprising:

receiving Downlink Control Information (DCI) sent by network equipment, wherein the DCI carries first indication information and second indication information, the first indication information is used for indicating M Modulation Coding Strategies (MCS), the second indication information is used for indicating all frequency domain resources used by one or M PDSCH, and M is an integer greater than or equal to 1;

according to the downlink control information, determining frequency domain resources occupied by M PDSCH respectively;

according to the downlink control information, determining frequency domain resources occupied by M PDSCH respectively comprises:

determining RBGs or PRBs occupied by M PDSCHs respectively;

according to the formula:or->

5. The method for determining resources according to claim 4, wherein determining the number of resource block groups RBGs or the number of physical resource blocks PRBs occupied by M physical downlink shared channels PDSCH, respectively, further comprises:

by passing throughDetermining the number of RBGs or PRBs occupied by the Mth PDSCH, wherein Nj is the number of the jth PDSCHNumber of occupied frequency domain resources.

6. The method according to claim 5, wherein when the second indication information indicates all N resource block groups RBGs occupied by the M PDSCH in a bit map manner, N is an integer greater than or equal to 1; the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

or,

7. The method according to claim 5, wherein when all physical resource blocks PRB occupied by the second indication information M PDSCH are consecutive N PRBs starting from the first predetermined PRB, N is an integer greater than or equal to 1; the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

ith PDSCH occupancyFirst Ni PRBs, i= … M, RB _offseti In a manner predefined by a protocol or configured by network side high-layer signalingOr configuring an offset value set at the protocol predefining/network side, determining by indicating one of the offset value sets through the physical layer downlink control signaling, wherein the PRBs are the first predetermined PRB,/the first predetermined PRB>The total number of PRBs contained for the active bandwidth portion BWP.

8. The method for determining resources according to claim 4, wherein determining the number of PRBs occupied by each of the M PDSCHs according to the M MCSs further comprises:

according to the formula:or->

According to the M MCS, determining the number Ni of physical resource blocks PRB occupied by the M-2 PDSCH, wherein i= … M-1, N is the total RBG number occupied by the M PDSCH or the total PRB number, the spectrum effect SE=code rate multiplied by modulation order/1024, SEi is the spectrum effect corresponding to the ith MCS, SEj is the spectrum effect corresponding to the jth MCS, and the code rate and the modulation order are determined according to the M MCS indicated by downlink control information DCI.

9. The method for determining resources according to claim 8, wherein determining the number of PRBs occupied by each of the M PDSCHs further comprises:

10. The method for determining resources according to claim 9, wherein the second indication information indicates that the physical resource block PRB occupied by the first PDSCH is N1 consecutive PRBs from the second predetermined PRB, and determining the PRBs occupied by the M PDSCHs respectively includes:

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to confirm by a predefined protocol mode, a higher layer signaling configuration mode at the network side, or a predefined protocol/network side configuration offset value set, and one of the offset value sets is indicated by a downlink control signaling of a physical layer, the PRBs are second predetermined PRB, <' > and->The total number of PRBs contained for the activated BWP.

11. A resource allocation apparatus, comprising:

a transceiver module, configured to send downlink control information DCI to a terminal, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1; the terminal determines frequency domain resources occupied by M PDSCH respectively according to the downlink control information; the determining, by the terminal, frequency domain resources occupied by M PDSCH respectively according to the downlink control information includes: according to the M MCSs, determining the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by the M physical downlink shared channels PDSCH;

according to the formula:or->

12. The resource allocation apparatus of claim 11, wherein the second indication information is configured to indicate all frequency domain resources used by the M physical downlink shared channels PDSCH, and comprises:

13. The resource allocation apparatus according to claim 12, wherein the second indication information is used to indicate all frequency domain resources used for one downlink transmission, and comprises:

14. A network device, comprising:

a transceiver, configured to send downlink control information DCI to a terminal, where the DCI carries first indication information and second indication information, where the first indication information is used to indicate M modulation coding strategies MCS, and the second indication information is used to indicate all frequency domain resources used by one or M physical downlink shared channels PDSCH, where M is an integer greater than or equal to 1; the terminal determines frequency domain resources occupied by M PDSCH respectively according to the downlink control information; the determining, by the terminal, frequency domain resources occupied by M PDSCH respectively according to the downlink control information includes: according to the M MCSs, determining the number of resource block groups RBGs or the number of physical resource blocks PRBs respectively occupied by the M physical downlink shared channels PDSCH;

According to the formula:or->

15. A device for determining resources, applied to a terminal, the device comprising:

the processing module is used for determining frequency domain resources respectively occupied by the M physical downlink shared channels PDSCH according to the downlink control information;

the processing module determines the number of RBGs or the number of physical resource blocks PRBs respectively occupied by M physical downlink shared channels PDSCH according to M MCSs; determining RBGs or PRBs occupied by M PDSCHs respectively;

according to the formula:or->

16. The apparatus for determining resources according to claim 15, wherein determining the number of resource block groups RBGs or the number of physical resource blocks PRBs occupied by M physical downlink shared channels PDSCH, respectively, further comprises:

17. The apparatus according to claim 16, wherein when the second indication information indicates all N resource block groups RBGs occupied by the M PDSCH in a bit map manner, N is an integer greater than or equal to 1; the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

or,

18. The apparatus for determining resources according to claim 17, wherein when all physical resource blocks PRB occupied by the second indication information M PDSCH are consecutive N PRBs starting from the first predetermined PRB, N is an integer greater than or equal to 1; the method for determining the RBG or PRB occupied by the M PDSCHs respectively comprises the following steps:

ith PDSCH occupancyThe first Ni PRBs, i= … M, +.>In order to configure a set of offset values in a predefined manner by a protocol, or in a higher layer signaling configuration manner at the network side, or in a predefined/network side configuration manner by a protocol,determining that PRBs are first scheduled PRB and/or +/are determined by indicating one of the physical layer downlink control signaling>The total number of PRBs contained for the active bandwidth portion BWP.

19. The apparatus for determining resources according to claim 15, wherein determining the number of PRBs occupied by each of the M PDSCHs according to the M MCSs, further comprises:

according to the formula:or->

20. The apparatus for determining resources according to claim 19, wherein determining the number of PRBs respectively occupied by the M PDSCH further comprises:

21. The apparatus for determining resources according to claim 19, wherein the second indication information indicates that the physical resource block PRB occupied by the first PDSCH is N1 consecutive PRBs from the second predetermined PRB, and determining the number of PRBs occupied by the M PDSCHs respectively includes:

22. A terminal, comprising:

the processor is used for determining frequency domain resources respectively occupied by the M physical downlink shared channels PDSCH according to the downlink control information;

the processor determines the number of RBGs or the number of physical resource blocks PRBs respectively occupied by M physical downlink shared channels PDSCH according to M MCSs; determining RBGs or PRBs occupied by M PDSCHs respectively;

according to the formula:or->

23. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any one of claims 1 to 3, or the method of any one of claims 4 to 10.

24. A computer readable storage medium comprising instructions which, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 3 or the method of any one of claims 4 to 10.