CN111404654B

CN111404654B - DCI analysis method, DCI notification method, terminal and network side equipment

Info

Publication number: CN111404654B
Application number: CN201910001644.5A
Authority: CN
Inventors: 王磊; 艾托尼
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-01-02
Filing date: 2019-01-02
Publication date: 2021-07-23
Anticipated expiration: 2039-01-02
Also published as: CN111404654A; WO2020140946A1

Abstract

The embodiment of the invention provides a DCI analysis method, a DCI notification method, a terminal and network side equipment, wherein the method comprises the following steps: the terminal determines the DCI format or the analysis mode of the DCI according to the resource configuration or the implicit indication; and the terminal analyzes the DCI according to the DCI format or the analysis mode. The embodiment of the invention can improve the service performance of the terminal.

Description

DCI analysis method, DCI notification method, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an analysis method, a notification method, a terminal, and a network device for Downlink Control Information (DCI).

Background

In a communication system, a plurality of Downlink Control Information (DCI) formats (formats) are defined, and Information contents carried by different DCI formats are different. In a current communication system, a defined DCI format that can be used for data scheduling includes DCI format0-0, DCI format1-0, DCI format0-1, and DCI format 1-1, where DCI format0-0 and DCI format0-1 are used for uplink data scheduling, and DCI format1-0 and DCI format 1-1 are used for downlink data scheduling.

However, in current communication systems, the first bit field (bit field) in the DCI is used to indicate the type of DCI, and the bit field contains 1 bit. For example: the indication field is used for indicating whether the current DCI is DCI format0-0 or DCI format1-0, or whether the current DCI is DCI format0-1 or DCI format 1-1. Because the DCI type can only be indicated by 1bit, the DCI types available to the communication system are too few, and further, the control information that the network side device can transmit to the terminal through the DCI is too few, resulting in lower service performance of the terminal.

Disclosure of Invention

The embodiment of the invention provides a DCI (Downlink control information) analysis method, a DCI notification method, a terminal and network side equipment, and aims to solve the problem of low service performance of the terminal.

The embodiment of the invention provides a DCI analysis method, which comprises the following steps:

the terminal determines the DCI format or the resolution mode of the DCI according to the resource configuration or the implicit indication;

and the terminal analyzes the DCI according to the DCI format or the analysis mode.

Optionally, the DCI format includes:

the DCI format includes a first DCI format or one of a plurality of DCI formats, wherein a payload size of the first DCI format is the same as a payload size of at least one of the plurality of DCI formats.

Optionally, the first DCI format is a DCI format newly introduced based on the plurality of DCI formats already existing in the communication system.

Optionally, the determining, by the terminal, the DCI parsing manner according to the resource configuration or the implicit indication includes:

and when the DCI is a second DCI format, the terminal determines the analysis mode of the DCI according to resource configuration or implicit indication, wherein the analysis mode is a first analysis mode or a second analysis mode, and the first analysis mode and the second analysis mode are two analysis modes corresponding to the second DCI format.

Optionally, the first parsing scheme is a parsing scheme newly defined for the second DCI format after the second parsing scheme is defined for the second DCI format in a communication system.

Optionally, the resource configuration includes:

a search space, or a control resource set (CORESET).

Optionally, each search space in the multiple search spaces is configured with the corresponding DCI format, and the determining, by the terminal, the DCI format or the parsing scheme of the DCI according to the resource configuration includes:

determining that the DCI is a DCI format configured in a search space to which the DCI belongs, or determining that an analysis mode of the DCI is an analysis mode configured in a search space to which the DCI belongs.

Optionally, when different DCI formats are configured in different search spaces of the multiple search spaces, and when there are overlapping Physical downlink control channel candidate positions (PDCCH candidates) in the multiple search spaces, the terminal determines the DCI format of the DCI according to the resource configuration, including:

if the overlapped Search Space includes Common Search Space (CSS), determining that the DCI transmitted on the overlapped PDCCH candidate is one of the DCI formats; or

If the overlapped search space comprises the CSS, determining that the DCI transmitted on the overlapped PDCCH candidate is the DCI format configured in the CSS; or

If the overlapped Search Space is a dedicated Search Space (USS) and there is a USS configured with the first DCI format, determining that DCI transmitted on the overlapped PDCCH candidate is the first DCI format; or

Determining that DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is DCI format configured in a first search space, and determining that DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is DCI format configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space.

Optionally, when different analysis manners are configured in different search spaces of the multiple search spaces and the multiple search spaces have overlapping PDCCH candidates, the terminal determines the analysis manner of the DCI according to the resource configuration, including:

if the overlapped search space comprises the CSS, determining that the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is the second analysis mode; or

If the overlapped search space comprises the CSS, determining that the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is the analysis mode configured in the CSS; or

If the overlapped search space is the USS and one USS configured with the first analysis mode exists, determining the analysis mode of the DCI transmitted on the overlapped PDCCH candidate as the first analysis mode; or

Determining an analysis mode of DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates as an analysis mode configured in a first search space, and determining an analysis mode of DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates as an analysis mode configured in a second search space, wherein the number of the first PDCCH candidate is smaller than the number of the second PDCCH candidate, and the identifier of the first search space is smaller than the identifier of the second search space.

Optionally, the determining, by the terminal, the DCI format or the parsing scheme of the DCI according to the implicit indication includes:

the terminal determines the DCI format or the resolution mode of the DCI according to the Radio Network Temporary Identifier (RNTI) of the DCI; or

The terminal determines the DCI format or the resolution mode of the DCI according to the specific bit field of the DCI, wherein the specific bit field at least comprises 2 bits.

Optionally, the DCI format includes: the method includes the steps that a first DCI format or one of a plurality of DCI formats is determined to be the first DCI format if the RNTI is a first RNTI under the condition that the load size of the first DCI format is the same as the load size of at least one of the plurality of DCI formats; or

And if the RNTI is a first RNTI, determining that the analysis mode is the first analysis mode when the DCI is a second DCI format which corresponds to two analysis modes of a first analysis mode and a second analysis mode.

Optionally, the specific bit field includes a Redundancy Version (RV) field and a Modulation and Coding Scheme (MCS) field, and if the DCI is a second DCI format and the second DCI format corresponds to two analysis manners, if the RV field is used for initial transmission and the MCS field is a specific value, it is determined that the analysis manner is the first analysis manner.

The embodiment of the invention also provides a DCI notification method, which comprises the following steps:

and the network side equipment informs the DCI format or the resolution mode of the DCI through resource configuration or implicit indication.

Optionally, the DCI format includes:

Optionally, when the DCI is a second DCI format, the analysis manner is a first analysis manner or a second analysis manner, where the first analysis manner and the second analysis manner are two analysis manners corresponding to the second DCI format.

Optionally, the resource configuration includes:

search space, or CORESET.

Optionally, each search space in the multiple search spaces is configured with a DCI format corresponding to the search space, where the DCI is the DCI format configured in the search space to which the DCI belongs.

Optionally, when different DCI formats are configured in different search spaces of a plurality of search spaces and overlapping PDCCH candidates exist in the plurality of search spaces:

if the overlapped search space comprises the CSS, the DCI transmitted on the overlapped PDCCH candidate is one of the plurality of DCI formats; or

If the overlapped search space comprises the CSS, the DCI transmitted on the overlapped PDCCH candidate is the DCI format configured in the CSS; or

If the overlapped search space is the USS and one USS configured with the first DCI format exists, the DCI transmitted on the overlapped PDCCH candidate is the first DCI format; or

The DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is a DCI format configured in a first search space, and the DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is a DCI format configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space.

Optionally, when different analysis methods are configured in different search spaces of the multiple search spaces and there is an overlapping PDCCH candidate in the multiple search spaces:

if the overlapped search space includes the CSS, the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is the second analysis mode; or

If the overlapped search space comprises the CSS, the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is the analysis mode configured in the CSS; or

If the overlapped search space is a USS and one USS configured with the first analysis mode exists, the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is the first analysis mode; or

An analysis mode of DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is an analysis mode configured in a first search space, and an analysis mode of DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is an analysis mode configured in a second search space, wherein a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space.

Optionally, the notifying, by the network side device, the DCI format or the parsing scheme of the DCI through the implicit indication includes:

the network side equipment informs the DCI format or the resolution mode of the DCI through the RNTI of the DCI; or

The network side device notifies DCI format or parsing mode of DCI through specific bit field of DCI, wherein the specific bit field at least includes 2 bits.

Optionally, the DCI format includes: the method includes the steps that a first DCI format or one of a plurality of DCI formats is selected, and if the RNTI is a first RNTI, the DCI is the first DCI format under the condition that the load size of the first DCI format is the same as the load size of at least one of the plurality of DCI formats; or

And if the RNTI is a first RNTI, the analysis mode is the first analysis mode under the condition that the DCI is a second DCI format and the second DCI format corresponds to two analysis modes of a first analysis mode and a second analysis mode.

Optionally, the specific bit field includes an RV field and an MCS field, and if the RV field indicates that the DCI is a second DCI format and the second DCI format corresponds to two analysis manners, namely a first analysis manner and a second analysis manner, and the MCS field is a specific value, the analysis manner is the first analysis manner.

An embodiment of the present invention further provides a terminal, including:

a determining module, configured to determine a DCI format or a DCI analysis mode of the DCI according to the resource configuration or the implicit indication;

and the analysis module is used for analyzing the DCI according to the DCI format or the analysis mode.

Optionally, the DCI format includes:

Optionally, the determining module is configured to, when the DCI is a second DCI format, determine, by the terminal, an analysis mode of the DCI according to a resource configuration or an implicit indication, where the analysis mode is a first analysis mode or a second analysis mode, and the first analysis mode and the second analysis mode are two analysis modes corresponding to the second DCI format.

Optionally, the resource configuration includes:

search space, or CORESET; or

The determining module is used for determining the DCI format or the resolution mode of the DCI according to the RNTI of the DCI; or

The determining module determines a DCI format or a parsing mode of the DCI according to a specific bit field of the DCI, wherein the specific bit field at least comprises 2 bits.

An embodiment of the present invention further provides a network side device, including:

and the notification module is used for notifying the DCI format or the resolution mode of the DCI through resource configuration or implicit indication.

Optionally, the DCI format includes:

Optionally, the resource configuration includes:

search space, or CORESET; or

The notification module is used for notifying the DCI format or the resolution mode of the DCI through the RNTI of the DCI; or

The notification module is configured to notify a DCI format or a parsing scheme of DCI through a specific bit field of DCI, where the specific bit field includes at least 2 bits.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is used for determining the DCI format or the resolution mode of the DCI according to the resource configuration or the implicit indication; analyzing the DCI according to the DCI format or the analysis mode;

alternatively, the first and second electrodes may be,

the processor is used for determining the DCI format or the resolution mode of the DCI according to the resource configuration or the implicit indication; and analyzing the DCI according to the DCI format or the analysis mode.

Optionally, the DCI format includes:

Optionally, the determining the DCI parsing manner according to the resource configuration or the implicit indication includes:

and determining an analysis mode of the DCI according to resource configuration or implicit indication when the DCI is a second DCI format, wherein the analysis mode is a first analysis mode or a second analysis mode, and the first analysis mode and the second analysis mode are two analysis modes corresponding to the second DCI format.

Optionally, the resource configuration includes:

search space, or CORESET; or

The determining the DCI format or the resolution mode of the DCI according to the implicit indication includes:

determining the DCI format or the resolution mode of the DCI according to the RNTI of the DCI; or

Determining the DCI format or the resolution mode of the DCI according to a specific bit field of the DCI, wherein the specific bit field at least comprises 2 bits.

An embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to notify the DCI format or the parsing scheme of the DCI through resource configuration or implicit indication.

Optionally, the DCI format includes:

Optionally, the resource configuration includes:

search space, or CORESET; or

The notifying of the DCI format or the parsing scheme of the DCI through the implicit indication includes:

informing the DCI format or the resolution mode of the DCI through the RNTI of the DCI; or

And informing the DCI format or the resolution mode of the DCI through a specific bit field of the DCI, wherein the specific bit field at least comprises 2 bits.

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements steps in a DCI parsing method provided in an embodiment of the present invention, or when executed by a processor, implements steps in a DCI notification method provided in an embodiment of the present invention.

In the embodiment of the invention, a terminal determines the format or the analysis mode of the DCI format according to the resource configuration or the implicit indication; and the terminal analyzes the DCI according to the DCI format or the analysis mode. Because the DCI format or the parsing mode of the DCI can be determined through resource configuration or implicit indication, more types of DCI and more parsing modes of DCI can be configured for the terminal, so that the service performance of the terminal is improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;

fig. 2 is a flowchart of a DCI parsing method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a search space provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of another search space provided by embodiments of the present invention;

FIG. 5 is a schematic diagram of another search space provided by embodiments of the present invention;

fig. 6 is a schematic diagram of a bit field of DCI provided by an embodiment of the present invention;

fig. 7 is a flowchart of a DCI notification method according to an embodiment of the present invention;

fig. 8 is a structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a structural diagram of a network side device according to an embodiment of the present invention;

fig. 10 is a block diagram of another terminal provided in an embodiment of the present invention;

fig. 11 is a structural diagram of another network-side device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a terminal 11 and a network side device 12, where the terminal 11 may be a User Equipment (UE) or other terminal devices, for example: a terminal side Device such as a Mobile phone, a Tablet personal Computer (Tablet personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), it should be noted that a specific type of the terminal is not limited in the embodiment of the present invention. The network side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network side device may also be a small station, such as a Low Power Node (LPN), pico, femto, or an Access Point (AP); the base station may also be a network node that is composed of a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) whose management is and controls. It should be noted that, in the embodiment of the present invention, the specific type of the network-side device is not limited.

Referring to fig. 2, fig. 2 is a flowchart of a DCI parsing method according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

201. the terminal determines the DCI format or the resolution mode of the DCI according to the resource configuration or the implicit indication;

202. and the terminal analyzes the DCI according to the DCI format or the analysis mode.

The resource configuration may be a frequency domain resource configuration or a time domain resource configuration of the DCI, for example: search space, or other resource configurations such as CORESET. Preferably, a specific DCI format or parsing scheme may be configured in each search space, for example: DCI format0-0/1-0 is arranged in search space #1, and DCI format0-2/1-2 is arranged in search space # 2.

It should be noted that the DCI format0-0/1-0 may represent DCI format0-0 and DCI format1-0, where after determining that the DCI format0-0/1-0 is determined, whether the DCI format0-0 or DCI format1-0 is further distinguished by a certain bit field (e.g., a first bit field) in the DCI, for example: whether it is DCI format0-0 or DCI format1-0 is discriminated by 1 bit. For the rest of the DCI formats, reference may be made to the description of DCI format0-0/1-0, which is not described in detail in the embodiments of the present invention.

Of course, the same DCI format or different DCI formats may be configured in different search spaces, or DCI formats configured in some search spaces are the same, and DCI formats configured in other search spaces are different. Further alternatively, a specific DCI format or parsing scheme may be configured in each CORESET, and specifically, the configuration scheme of the search space may be referred to.

Therefore, after the terminal determines the resource allocation, the terminal may determine the DCI format or the DCI analysis method of the DCI.

The implicit indication may be an indication performed through information such as a bit field or Cyclic Redundancy Check (CRC) in the DCI, for example: and implicitly indicating the DCI format or the analysis mode of the DCI through the RV field and/or the MCS field, so that the terminal can determine the DCI format or the analysis mode of the DCI through the bit fields. Another example is: the DCI format or the resolution mode of the DCI is implicitly indicated by the RNTI value used by CRC scrambling, so that the terminal can determine the DCI format or the resolution mode of the DCI through the RNTI value.

It should be noted that, the determining, by the terminal, the DCI format or the parsing scheme of the DCI according to the resource configuration or the implicit indication may be understood as that the terminal performs the determination according to the resource configuration or the implicit indication, where the determining includes determining the DCI format of the DCI or determining the parsing scheme of the DCI. Namely, according to the resource configuration or the implicit indication, the DCI format of the DCI is determined, or according to the resource configuration or the implicit indication, the DCI analysis mode is determined.

In the embodiment of the present invention, after the DCI format of the DCI is determined, the DCI format may be analyzed according to a default analysis method of the DCI format. Of course, after determining the DCI format of the DCI in step 201, the parsing scheme of the DCI format may be further determined according to the source configuration or the implicit indication, and further parsing may be performed according to the parsing scheme.

The above-mentioned determining the analysis manner may be determining the DCI format according to the manner in step 201 and then determining the analysis manner, or determining the DCI format according to another manner and then determining the analysis manner, for example: and determining the format of the DCI according to the first bit field of the DCI, and then determining the resolution mode of the DCI.

In the embodiment of the present invention, because the DCI format of the DCI may be determined through the resource configuration or the implicit indication, the terminal may be configured with more types of DCI, because the number of DCI types distinguishable by the resource configuration is greater than the number of DCI types distinguishable by 1bit in the prior art, for example: different DCI formats of three payload sizes (payload sizes) may be distinguished by three search spaces or CORESET. In addition, since the DCI analysis method can be determined by resource allocation or implicit indication, multiple analysis methods can be allocated to the terminal for the same DCI format, instead of adopting a fixed analysis method for each DCI format. Because more types of DCI and more analysis DCI are configured for the terminal, the control information which can be transmitted to the terminal by the network side equipment is increased, and the service performance of the terminal is further improved, for example: more types of DCI formats can be transmitted to the terminal, or the same DCI format can be analyzed in multiple analysis modes, so that different information contents corresponding to different analysis modes transmitted through the same DCI format can be realized.

As an optional embodiment, the DCI format includes:

The first DCI format is a DCI format newly defined in the embodiment of the present invention, or a DCI format newly introduced in a communication system in the embodiment of the present invention. That is, the first DCI format may be referred to as a new DCI format. For example: introducing a new DCI format for a specific service type, namely the first DCI format, for example, introducing a new DCI format for Ultra-Reliable LowLatency Communications (URLLC) or massive Machine type Communications (mMTC).

The existing DCI formats of the multiple DCI formats may be referred to as legacy DCI formats in the communication system before the first DCI format is defined or introduced.

Specifically, the first DCI format may be a DCI format newly introduced based on the plurality of dciformats already existing in the communication system. For example: the plurality of DCI formats include DCI format0-0, DCI format1-0, DCI format0-1 and DCI format 1-1, and the first DCI format is a new DCI format newly introduced based on the existing DCI formats, for example: DCI format0-2, DCI format1-2, and the like.

Preferably, in an embodiment of the present invention, the first DCI format may also adopt an expression of DCI format0-2/1-2, that is, the first DCI format may include two specific DCI formats, for example: DCI format0-2 and DCI format 1-2. After determining the first DCI format, it may further distinguish whether to be DCI format0-2 or DCI format1-2 by a certain bit field (e.g., a first bit field) in the first DCI format, for example: whether it is DCI format0-2 or DCI format1-2 is discriminated by 1 bit. Of course, the above 0-2 and 1-2 are only examples, and specific names are not limited in the embodiments of the present invention, and preferably, the two specific DCI formats corresponding to the first DCI format are used for uplink scheduling and uplink scheduling, respectively.

The payload size of the DCI format included in the first DCI format may be the same, and the payload size of the first DCI format may be the payload size of any one DCI format included in the first DCI format. For example: and if the first DCI format is DCI format0-2/1-2, the payload size of the first DCI format is DCI format0-2 or DCI format 1-2.

The analysis method of the first DCI format may be different from the analysis methods of the plurality of DCI formats, and the analysis method of the first DCI format may be configured in advance or determined in step 201.

It should be noted that, since the payload size of the first DCI format is the same as the payload size of at least one DCI format of the plurality of DCI formats, when the first DCI format is added, that is, when a new DCI format is added, blind detection of a downlink control channel of the terminal is not increased, and complexity and energy consumption of the terminal are not increased.

As an optional implementation manner, the determining, by the terminal, the DCI parsing manner according to the resource configuration or the implicit indication includes:

The second DCI format may be any one of the DCI formats described in the above embodiment, for example: DCI format0-0, DCI format1-0, DCI format0-1 or DCI format 1-1. Of course, in some embodiments, the second DCI format may be a DCI format newly defined or introduced in the embodiments of the present invention, and reference is made to the description of the first DCI format, that is, the first DCI format may also be configured with two parsing manners, that is, the first parsing manner and the second parsing manner.

The first parsing scheme may be a newly defined parsing scheme according to an embodiment of the present invention, that is, a newly defined parsing scheme is added on the basis that there is only one parsing scheme in an existing DCI format. For example: the first analysis method is an analysis method newly defined for the second DCI format after the second analysis method is defined for the second DCI format in the communication system. Further, the determined analysis method may be an analysis method of a certain partial bit (bit) information bit in the DCI, for example: analyzing a part of bit information bits in the DCI by the second analysis method (e.g., legacy analysis method), and determining an analysis method of the remaining bit information bits according to an analysis result of the part of bit information bits in step 201, for example: the analysis mode of the remaining bit information bits is determined to be the first analysis mode through step 201.

Therefore, two analysis modes can exist in a certain DCI format, so that the network side equipment can generate corresponding contents in the DCI format according to the required analysis mode, and the terminal can analyze the corresponding analysis modes, thereby realizing that different information contents correspond to different analysis modes transmitted through the same DCI format.

As an optional implementation, the resource allocation includes:

search space, or CORESET.

In this embodiment, each of the plurality of search spaces may be configured with its corresponding DCI format, where the plurality of search spaces may be search spaces in which DCI is transmitted. So that the terminal can determine the format of DCI according to the ID of the search space. Or each of the multiple CORESET is configured with its corresponding DCI format, where the multiple CORESET may be the CORESET transmitted with the DCI, so that the terminal may determine the format of the DCI according to the ID of the CORESET.

Specifically, each search space in the multiple search spaces may be configured with its corresponding DCI format, and the determining, by the terminal, the DCI format or the parsing scheme of the DCI according to the resource configuration includes:

It is assumed that the search space #1 is configured with DCI format0-0/1-0 and the search space #2 is configured with DCI format0-2/1-2, so that if DCI is received in the search space #2, it can be determined that the DCI is DCI format0-2/1-2, and further, whether DCI format0-2 or DCI format1-2 is determined by an indication field (e.g., one bit) in the DCI.

Assuming that the first analysis scheme (i.e., the new analysis scheme) is arranged in the second DCI format search space #1 and the second analysis scheme is arranged in the search space #2, if DCI is received in the search space #1, it can be determined that the analysis scheme of the DCI is the first analysis scheme.

Optionally, in this embodiment, the RNTI used by the first DCI format and the plurality of DCI formats may be the same.

The above determination is illustrated below by two examples:

example 1:

in order to meet the requirement of a new service type (e.g., URLLC, mtc, etc.), the first DCI format, i.e., a new DCI format, is introduced, wherein the resolution of the information field of the DCI format is different from that of the existing DCI format (i.e., the described multiple DCI formats), for example: the new DCI format0-2/1-2 is different from DCI format 0-0/0-1, DCI format 1-0/1-1 and DCI format 2-0/2-1/2-2/2-3. In order to reduce the complexity of the terminal side, the size of the newly introduced DCI format is the same as that of the existing DCI format, for example: the same as the payload size of DCI format 0-0/1-0.

The network side device may inform the terminal how to analyze DCI transmitted in a certain search space in a manner of configuring different search spaces for different DCI formats. And the terminal side determines the DCI format transmitted in a certain search space according to the configuration information of the search space, and further determines the analysis mode of the DCI format.

For example: in the search space configuration signaling configured by RRC signaling (signaling), a new DCI format distinguishing flag is added (assuming that the newly introduced DCI format is DCI format0-2/1-2, and is respectively used for uplink scheduling and downlink scheduling), then the following configuration signaling may be used:

that is, when the DCI format of the terminal-specific (UE-specific) search space indicates that the signaling is formats0-2-And-1-2, the network side device sends DCI format0-2/1-2 in the corresponding search space, And the terminal parses the received DCI according to the definition of DCI format 0-2/1-2.

In this case, the type of RNTI value used for CRC scrambling added in the new DCI format during transmission may be the same as the RNTI used by the existing DCI format (which may also be referred to as the current DCI format) for data Scheduling, such as a Cell radio network temporary identifier (Cell RNTI, C-RNTI), a Scheduling configuration radio network temporary identifier (CS-RNTI), or a Cell modulation coding scheme radio network temporary identifier (MCS-C-RNTI).

Example 2:

as described in embodiment 1, a new parsing scheme based on the existing DCI format (e.g., the multiple DCI formats described above) may be defined, i.e., the first parsing scheme. For example: for the DCI format0-0/1-0, when the network side device may indicate, through high layer signaling, that DCI transmitted in a certain search space needs to be analyzed according to a new analysis method, the terminal analyzes according to the newly defined DCI analysis method when detecting and receiving DCI. The network side device may indicate whether to adopt a new parsing scheme through RRC signaling, for example

As an optional implementation manner, in a case that different DCI formats are configured in different search spaces of a plurality of search spaces and there is an overlapping PDCCH candidate in the plurality of search spaces, the determining, by the terminal, the DCI format of the DCI according to the resource configuration includes:

if the overlapped search space comprises the CSS, determining that the DCI transmitted on the overlapped PDCCH candidate is one of the plurality of DCI formats; or

If the overlapped search space is the USS and one USS configured with the first DCI format exists, determining the DCI transmitted on the overlapped PDCCH candidate as the first DCI format; or

The plurality of search spaces may be a plurality of search spaces for transmitting DCI, and preferably, the plurality of search spaces may be a plurality of search spaces that overlap with each other. In addition, the plurality of search spaces are preferably 2 search spaces, for example: the Search Space (SS) #1 is configured with DCI formats 0-0/1-0, and the SS #2 is configured with DCI formats 0-2/1-2. But this is not limited thereto, for example: the plurality of search spaces may be 3 or more search spaces.

Preferably, the PDCCH candidates where the plurality of search spaces overlap may be PDCCH candidates where at least two search spaces with different DCI formats are arranged overlap, for example: as shown in fig. 3, there is a PDCCH candidate where SS #1 and SS #2 completely coincide.

In the embodiment of the present invention, the PDCCH candidates that overlap are preferably completely overlapping PDCCH candidates or PDCCH candidates that are called completely overlapping PDCCH candidates, that is, the same PDCCH candidate exists in different search spaces.

The search space where the overlap exists may be a search space where the overlap occurs, that is, a search space to which the overlapped PDCCH candidate belongs. For example: as shown in fig. 3, there are overlapping search spaces SS #1 and SS # 2.

In addition, the plurality of DCI formats and the first DCI format are described in the embodiments of the present invention.

In this embodiment, if there is an overlapping search space including CSS, it is possible to identify DCI transmitted on overlapping PDCCH candidate as one of the plurality of DCI formats or DCI formats arranged in the CSS. Since the control signaling in the CSS is generally used to transmit multiple terminals, data with higher priority is scheduled, for example: broadcast data or data in a fallback (fallback) mode is received according to the DCI format in the CSS, which helps to ensure that the terminal does not suffer from performance degradation due to not receiving high priority signaling such as broadcast signaling in time.

And if the overlapped search space is USS, determining the DCI transmitted on the overlapped PDCCH candidate as the first DCI format, so that for the newly introduced first DCI format, the main application scene is URLLC, namely a low-delay high-reliability scene, and analyzing according to the first DCI format, thereby being beneficial to reducing the scheduling delay and ensuring the service quality.

Furthermore, the DCI format in the superimposed PDCCH candidate may be specified according to the PDCCH candidate number and the search space identifier. In addition, if there are multiple completely overlapping PDCCH candidates in the overlapped search space, the DCI transmitted on the lower-numbered PDCCH candidate in the overlapped PDCCH candidate set is the DCI format transmitted in the SS with smaller SS ID; the DCI transmitted on the higher numbered PDCCH candidate in the overlapping PDCCH candidate set is the DCI format transmitted within the SS with the higher SS ID.

In addition, in the above embodiment, when multiple PDCCH candidates overlap, reliable transmission of PDCCHs in multiple search spaces can be ensured, and performance loss caused by missed detection of a terminal due to transmission of a network side device can be avoided.

As an optional implementation manner, in a case where different analysis manners are configured in different search spaces among a plurality of search spaces and there is an overlapping PDCCH candidate in the plurality of search spaces, the determining, by the terminal, a DCI analysis manner according to a resource configuration includes:

In this embodiment, the parsing manner of the search space may be directly configured or indirectly configured, for example: if the DCI format is configured in the search space, the parsing scheme configured in the search space is the parsing scheme of the DCI format configured in the search space, or the parsing scheme is configured directly for the search space, or when the DCI format configured in the search space corresponds to multiple parsing schemes, the parsing scheme is further configured for the search space.

It should be noted that, for determining a specific implementation manner of the parsing manner in this embodiment, and beneficial effects, reference may be made to corresponding descriptions of the above embodiment, which are not described herein again.

The two embodiments described above are illustrated below in two examples:

example 3:

when the DCIs with the same size of the scheduling unicast data (unique data) transmitted in different search spaces or the DCIs with the scheduling unicast data transmitted in different search spaces have different analysis modes, and partial PDCCH candidates in different search spaces completely coincide with each other, determining the type or the analysis mode for detecting the received DCI format according to the SS type of the coincidence. The following strategy may be employed:

if one of the overlapped search spaces is the CSS, the DCI format transmitted on the completely overlapped PDCCH candidate is the DCI format configured in the CSS, or is a legacy DCI format, that is, one DCI format of the multiple DCI formats;

if the overlapped search spaces are USSs and one USS is configured with a new DCI format (i.e. the first DCI format) or a new analysis method (i.e. the first analysis method), it is considered that the DCI format transmitted on the overlapped PDCCH candidate is the new DCI format or the new analysis method is performed.

For example, as shown in fig. 3, when the SS #1 has DCI format0-0/1-0 arranged therein, the SS #2 has DCI format0-2/1-2 arranged therein, the SS #1 is CSS, the SS #2 is USS, and both have partial PDCCH candidates (overlap), the PDCCH candidate of the overlap is considered to have the same DCI format transmitted thereon as the DCI format arranged in the CSS, that is, the same DCI format arranged in the SS #1, or a DCI field analyzed according to the DCI format transmitted in the SS # 1.

For example: as shown in fig. 4, when the DCI format0-0/1-0 is arranged in SS #1, the DCI format0-2/1-2 is arranged in SS #2, SS #1 is USS, SS #2 is USS, and both have partial PDCCH candidate full overlap, the PDCCH candidate in overlap is considered to have the same DCI format as that arranged in SS #2, that is, the same DCI format arranged in SS #2, or an information field for analyzing DCI according to the DCI format transmitted in SS # 2.

Example 4:

when DCIs with the same size transmitted by scheduling unique data in different search spaces or DCIs with different resolution modes transmitted by scheduling unique data in different search spaces have different resolution modes, and partial PDCCH candidates in different search spaces completely coincide with each other, determining the type or resolution mode for detecting the received DCI format according to the SS type where the overlapping occurs. The following strategy may be employed:

if there are multiple completely overlapping PDCCH candidates in the overlapped search spaces, the DCI transmitted on the lower numbered PDCCH candidates in the overlapped PDCCH candidate set is the DCI format transmitted in the SS with the smaller SS ID; the DCI transmitted on the higher numbered PDCCH candidate in the set of overlapping PDCCH candidates is the DCI format transmitted within the SS with the higher SS ID.

For example: as shown in fig. 5, in SS #1, DCI format0-0/1-0 is arranged, in SS #2, DCI format0-2/1-2 is arranged, and two PDCCH candidates completely overlap each other (candidate #2/#3 in SS #1 and candidate #0/#1 in SS # 2). And the terminal detects DCI on both the overlapping PDCCH candidates. When the numbers of overlapping PDCCH candidates are numbered, the DCI format detected on the candidate with a lower number is analyzed according to the DCI format0-0/1-0, and the DCI format detected on the candidate with a higher number is analyzed according to the DCI format 0-2/1-2.

As an optional implementation manner, the determining, by the terminal, the DCI format or the parsing scheme of the DCI according to the implicit indication includes:

the terminal determines the DCI format or the resolution mode of the DCI according to the RNTI of the DCI; or

In this embodiment, the RNTI corresponding to the first DCI format may be different from the RNTIs corresponding to the plurality of DCI formats, and the RNTI corresponding to the first analysis scheme may be different from the RNTI corresponding to the second analysis scheme.

In this embodiment, because the DCI format or the parsing scheme of the DCI may be determined by the RNTI, an additional signaling is not required for indicating, so that transmission overhead may be saved.

For example: the DCI format comprises: the method includes the steps that a first DCI format or one of a plurality of DCI formats is determined to be the first DCI format if the RNTI is a first RNTI under the condition that the load size of the first DCI format is the same as the load size of at least one of the plurality of DCI formats; or

The first RNTI may be a specific RNTI newly defined for the first DCI format and the first parsing scheme in the embodiment of the present invention, and may be, for example: specific RNTIs, such as X-RNTIs, are defined for DCI, wherein X-RNTI is used for scrambling of CRC of the first DCI format or for scrambling of CRC of existing DCI formats (i.e. DCI formats of the above plurality of DCI formats) and based thereon determining to parse the information field according to a predefined manner, e.g. scrambling using newly defined X-RNTI.

In this embodiment, the first DCI format or the first parsing scheme may be directly determined by the first RNTI, so as to reduce complexity.

The above embodiment is illustrated below as an example:

example 5:

it is assumed that in order to adapt to the requirements of new service types (e.g., URLLC, mtc, etc.), a new DCI format is introduced, wherein the resolution of the information domain is different from that of the existing DCI format (i.e., the above-described DCI formats, such as DCI format 0-0/0-1, DCI format 1-0/1-1, and DCI format 2-0/2-1/2-2/2-3). In order to reduce the complexity of the terminal side, the size of the newly introduced DCI format is the same as that of the existing DCI format, for example, the payload size of the DCI format0-0/1-0 is the same. A new RNTI is defined, which is used for scrambling CRC of new DCI format or used for scrambling CRC of existing DCI format, and indicates different resolution modes of information domains.

For example, X-RNTI is defined for scrambling of CRC of new DCI format. When the terminal detects a DCI in a search space and the CRC of the DCI is scrambled by adopting X-RNTI, the DCI format is determined to be a new DCI format. And if the CRC of the DCI adopts C-RNTI, CS-RNTI or MCS-C-RNTI scrambling, determining that the DCI format is legacy DCI format.

Or determining how to parse the information field in the DCI format according to the scrambling RNTI of the detected DCI corresponding to the CRC. For example, the information fields in the DCI format0-0/1-0 have different resolution modes, and when the DCI is scrambled by adopting the X-RNTI, each bit in the DCI is resolved according to the newly defined resolution mode; otherwise, analyzing according to the existing analyzing mode.

The specific bit field may be one or more bit fields, and the bit field is different from an indication field (e.g., a first bit field) having only 1bit in DCI.

The specific resolution may be a resolution for determining information bits of remaining bits of the DCI excluding the specific bit field. Specifically, the method can be implemented by setting a specific bit value in the DCI to a special value to indicate that the remaining bit information bits in the DCI are analyzed in a specific manner. Therefore, the complexity of blind detection of the terminal can be reduced.

Preferably, the specific bit field includes an RV field and an MCS field, and if the RV field indicates that the DCI is a second DCI format and the second DCI format corresponds to two analysis methods, namely a first analysis method and a second analysis method, and the MCS field is a specific value, the analysis method is determined to be the first analysis method.

The specific value may be agreed in a protocol, or pre-negotiated between the network side device and the terminal.

In this embodiment, since the first parsing scheme of the remaining bit information bits can be determined through the RV field and the MCS field, no additional signaling is required to indicate when a new parsing scheme is defined for the DCI, and the DCI format does not need to be changed, thereby reducing complexity.

This embodiment is illustrated below by way of an example:

example 6:

in this embodiment, the current DCI format is multiplexed, and when the partial information field in the current DCI format is set to a special value, the remaining bit information bits are re-parsed, for example:

RV version 0 can only be used for initial transmission;

the bits corresponding to the RV field in the legacy DCI in the New DCI are all set to zero, and the bits corresponding to the MCS field in the legacy DCI are set to a special value, for example, all 1, at this time, the remaining bit information bits in the DCI are re-analyzed in a predefined manner.

Taking DCI format1-0 as an example, as shown in fig. 6, when the RV field is 00 and the MCS fields thereof are all 1, the remaining bit information bits in the DCI are parsed according to a predefined manner (i.e., the first parsing scheme).

Of course, the MCS fields described above are all 1 by way of example only, and are not limited thereto.

Referring to fig. 7, fig. 7 is a flowchart of a DCI notification method according to an embodiment of the present invention, and as shown in fig. 7, the method includes the following steps:

701. and the network side equipment informs the DCI format or the resolution mode of the DCI through resource configuration or implicit indication.

Optionally, the DCI format includes:

Optionally, the resource configuration includes:

search space, or CORESET.

It should be noted that, this embodiment is used as an implementation of the network side device corresponding to the embodiment shown in fig. 2, and specific implementation thereof may refer to the relevant description of the embodiment shown in fig. 2, so that, in order to avoid repeated description, the embodiment is not described again, and the same beneficial effects may also be achieved.

Referring to fig. 8, fig. 8 is a structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 8, a terminal 800 includes:

a determining module 801, configured to determine a DCI format or a DCI parsing manner of the DCI according to the resource configuration or the implicit indication;

an analysis module 802, configured to analyze the DCI according to the DCI format or the analysis manner.

Optionally, the DCI format includes:

Optionally, the determining module 801 is configured to, when the DCI is a second DCI format, determine, by the terminal, an analysis manner of the DCI according to a resource configuration or an implicit indication, where the analysis manner is a first analysis manner or a second analysis manner, and the first analysis manner and the second analysis manner are two analysis manners corresponding to the second DCI format.

Optionally, the resource configuration includes:

search space, or CORESET.

Optionally, a DCI format corresponding to each search space in the multiple search spaces is configured in each search space, and the determining module 801 is configured to determine that the DCI is the DCI format configured in the search space to which the DCI belongs, or determine that an analysis manner of the DCI is the analysis manner configured in the search space to which the DCI belongs.

the determining module 801 is configured to determine, if there is the overlapping search space including the CSS, that the DCI transmitted on the overlapping PDCCH candidate is one DCI format of the multiple DCI formats; or

The determining module 801 is configured to determine, if there is a CSS included in the overlapped search space, that the DCI transmitted on the overlapped PDCCH candidate is a DCI format configured in the CSS; or

The determining module 801 is configured to determine that the DCI transmitted on the overlapped PDCCH candidate is the first DCI format if the overlapped search space is a dedicated search space USS and there is a USS configured with the first DCI format; or

The determining module 801 is configured to determine that DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is DCI format configured in a first search space, and determine that DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is DCI format configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space.

the determining module 801 is configured to determine, if the overlapped search space includes the CSS, that an analysis manner of the DCI transmitted on the overlapped PDCCH candidate is the second analysis manner; or

The determining module 801 is configured to determine, if there is a CSS included in the overlapped search space, that an analysis manner of DCI transmitted on the overlapped PDCCH candidate is an analysis manner configured in the CSS; or

The determining module 801 is configured to determine, if the overlapped search space is a USS and there is a USS configured with the first analysis method, that the analysis method of the DCI transmitted on the overlapped PDCCH candidate is the first analysis method; or

The determining module 801 is configured to determine an analysis manner of DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates as an analysis manner configured in a first search space, and determine an analysis manner of DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates as an analysis manner configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space.

Optionally, the determining module 801 is configured to determine DCI format or parsing scheme of the DCI according to the RNTI of the DCI; or

The determining module 801 is configured to determine a DCI format or a parsing scheme of a DCI according to a specific bit field of the DCI, where the specific bit field at least includes 2 bits.

Optionally, the specific bit field includes an RV field and an MCS field, and when the DCI is a second DCI format and the second DCI format corresponds to two analysis manners, if the RV field is indicated for initial transmission and the MCS field is a specific value, it is determined that the analysis manner is the first analysis manner.

It should be noted that, in this embodiment, the terminal 800 may be any implementation manner of the method embodiment in the present invention, and any implementation manner of the terminal in the method embodiment in the present invention may be implemented by the terminal 800 in this embodiment, and achieve the same beneficial effects, and details are not described here again.

Referring to fig. 9, fig. 9 is a structural diagram of a network side device according to an embodiment of the present invention, and as shown in fig. 9, the network side device 900 includes:

a notifying module 901, configured to notify the DCI format or the parsing scheme of the DCI through resource configuration or implicit indication.

Optionally, the DCI format includes:

Optionally, the resource configuration includes:

search space, or CORESET.

Optionally, the notifying module 901 is configured to notify the DCI format or the parsing manner of the DCI through the RNTI of the DCI; or

The notifying module 901 is configured to notify a DCI format or a parsing scheme of DCI through a specific bit field of the DCI, where the specific bit field at least includes 2 bits.

It should be noted that, in this embodiment, the network-side device 900 may be a terminal of any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device 900 in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 10, fig. 10 is a structural diagram of another terminal according to an embodiment of the present invention, and as shown in fig. 10, the terminal includes: a transceiver 1010, a memory 1020, a processor 1000, and a program stored on the memory 1020 and executable on the processor 1000, wherein:

the transceiver 1010 is configured to determine a DCI format or a DCI analysis mode of the DCI according to the resource configuration or the implicit indication; analyzing the DCI according to the DCI format or the analysis mode;

alternatively, the first and second electrodes may be,

the processor 1000 is configured to determine a DCI format or a DCI analysis mode of the DCI according to the resource configuration or the implicit indication; and analyzing the DCI according to the DCI format or the analysis mode.

The transceiver 1010 may be used to receive and transmit data under the control of the processor 1000.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 in performing operations.

It should be noted that the memory 1020 is not limited to being on the terminal, and the memory 1020 and the processor 1000 may be separated in different geographical locations.

Optionally, the DCI format includes:

Optionally, the resource configuration includes:

search space, or CORESET.

Optionally, each search space in the multiple search spaces is configured with the corresponding DCI format, and determining the DCI format or the parsing scheme of the DCI according to the resource configuration includes:

Optionally, configuring different DCI formats in different search spaces of the multiple search spaces, and when there is a PDCCH candidate that coincides with each other in the multiple search spaces, determining the DCI format of the DCI according to the resource configuration includes:

Optionally, when different analysis manners are configured in different search spaces of the multiple search spaces and the multiple search spaces have overlapping PDCCH candidates, the determining the analysis manner of the DCI according to the resource configuration includes:

Optionally, the determining the DCI format or the parsing scheme of the DCI according to the implicit indication includes:

determining the DCI format or the resolution mode of the DCI according to the Radio Network Temporary Identifier (RNTI) of the DCI; or

It should be noted that, in this embodiment, the terminal may be a terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the terminal in the method embodiment of the present invention may be implemented by the terminal in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

Referring to fig. 11, fig. 11 is a structural diagram of another network-side device according to an embodiment of the present invention, and as shown in fig. 11, the network-side device includes: a transceiver 1110, a memory 1120, a processor 1100, and a program stored on the memory 1120 and executable on the processor, wherein:

the transceiver 1110 is configured to notify DCI format or parsing scheme of DCI according to resource configuration or implicit indication.

The transceiver 1110 may be used for receiving and transmitting data, among other things, under the control of the processor 1100.

In FIG. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1100, and various circuits of memory, represented by memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.

It should be noted that the memory 1120 is not limited to be on a network-side device, and the memory 1120 and the processor 1100 may be separated in different geographical locations.

Optionally, the DCI format includes:

Optionally, the resource configuration includes:

search space, or CORESET.

Optionally, the notifying the DCI format or the parsing scheme of the DCI through the implicit indication includes:

It should be noted that, in this embodiment, the network-side device may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the processing method of the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for analyzing Downlink Control Information (DCI) is characterized by comprising the following steps:

the terminal determines the DCI format or the analysis mode of the DCI according to the resource configuration or the implicit indication;

the terminal analyzes the DCI according to the DCI format or the analysis mode;

the method for determining the DCI format of the DCI by the terminal according to the resource configuration or the implicit indication includes the following steps that different DCI formats are configured in different search spaces in a plurality of search spaces, and the plurality of search spaces have overlapped PDCCH candidates, wherein the DCI formats of the DCI formats are determined by the terminal according to the resource configuration or the implicit indication:

if the overlapped search space comprises a common search space CSS, determining that the DCI transmitted on the overlapped PDCCH candidate is one of the plurality of DCI formats; or

If the overlapped search space is a dedicated search space (USS) and one USS configured with a first DCI format exists, determining that the DCI transmitted on the overlapped PDCCH candidate is the first DCI format, wherein the load size of the first DCI format is the same as the load size of at least one DCI format in the plurality of DCI formats; or

Determining DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates as DCI format configured in a first search space, and determining DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates as DCI format configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space;

alternatively, the first and second electrodes may be,

when different analysis methods are configured in different search spaces in a plurality of search spaces and the plurality of search spaces have overlapped PDCCH candidates, the terminal determines the analysis method of the DCI according to resource configuration or implicit indication, and the method comprises the following steps:

if the overlapped search space comprises the CSS, determining that the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is a second analysis mode; or

If the overlapped search space is USS and one USS configured with a first analysis mode exists, determining the analysis mode of the DCI transmitted on the overlapped PDCCH candidate as the first analysis mode; or

Determining an analysis mode of DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates as an analysis mode configured in a first search space, and determining an analysis mode of DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates as an analysis mode configured in a second search space, wherein the number of the first PDCCH candidate is smaller than that of the second PDCCH candidate, and the identifier of the first search space is smaller than that of the second search space;

and the first analysis mode and the second analysis mode are two analysis modes corresponding to the second DCI format.

2. The method of claim 1, wherein the first DCI format is a DCI format newly introduced based on the plurality of DCI formats already in the communication system.

3. The method of claim 1, wherein the first parsing scheme is a parsing scheme newly defined for the second DCI format after the second parsing scheme is defined for the second DCI format in a communication system.

4. The method of any of claims 1 to 3, wherein the resource configuration comprises:

search space, or control resource set CORESET.

5. The method of claim 4, wherein each of the plurality of search spaces is configured with its corresponding DCI format, and the determining, by the terminal according to the resource configuration, the DCI format or the parsing scheme of the DCI comprises:

6. A DCI notification method, comprising:

the network side equipment informs the DCI format or the resolution mode of the DCI through resource configuration or implicit indication;

wherein, when different DCI formats are configured in different search spaces of a plurality of search spaces and overlapped PDCCH candidates exist in the plurality of search spaces:

If the overlapped search space is the USS and one USS configured with a first DCI format exists, the DCI transmitted on the overlapped PDCCH candidate is the first DCI format, and a payload size of the first DCI format is the same as a payload size of at least one DCI format of the plurality of DCI formats; or

The DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is a DCI format configured in a first search space, and the DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is a DCI format configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space;

alternatively, the first and second electrodes may be,

when different analysis methods are configured in different search spaces in a plurality of search spaces and the plurality of search spaces have overlapped PDCCH candidates:

if the overlapped search space comprises the CSS, the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is a second analysis mode; or

If the overlapped search space is USS and one USS configured with a first analysis mode exists, the analysis mode of the DCI transmitted on the overlapped PDCCH candidate is the first analysis mode; or

An analysis mode of DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is an analysis mode configured in a first search space, and an analysis mode of DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is an analysis mode configured in a second search space, wherein a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space;

7. The method of claim 6, wherein the first DCI format is a DCI format that is newly introduced based on the plurality of DCI formats already existing in the communication system.

8. The method of claim 6, wherein the first parsing scheme is a parsing scheme newly defined for the second DCI format after the second parsing scheme is defined for the second DCI format in a communication system.

9. The method of any of claims 6 to 8, wherein the resource configuration comprises:

search space, or CORESET.

10. The method of claim 9, wherein each search space in a plurality of search spaces is configured with its corresponding DCI format, and wherein the DCI is the DCI format configured in the search space to which the DCI belongs.

11. A terminal, comprising:

the analysis module is used for analyzing the DCI according to the DCI format or the analysis mode;

wherein, in the case that different DCI formats are configured in different search spaces of a plurality of search spaces and there are superposed PDCCH candidates:

the determining module is configured to determine, if the overlapped search space includes a common search space CSS, that the DCI transmitted on the overlapped PDCCH candidate is one of the DCI formats; or

The determining module is configured to determine, if the overlapped search space includes the CSS, that the DCI transmitted on the overlapped PDCCH candidate is the DCI format configured in the CSS; or

The determining module is configured to determine, if the overlapped search space is a dedicated search space USS and there is a USS configured with a first DCI format, that the DCI transmitted on the overlapped PDCCH candidate is the first DCI format, where a payload size of the first DCI format is the same as a payload size of at least one DCI format of the plurality of DCI formats; or

The determining module is configured to determine that DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates is DCI format configured in a first search space, and determine that DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates is DCI format configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space;

alternatively, the first and second electrodes may be,

the determining module is configured to determine, if the overlapped search space includes the CSS, that an analysis manner of DCI transmitted on the overlapped PDCCH candidate is a second analysis manner; or

The determining module is configured to determine, if the overlapped search space includes the CSS, that an analysis manner of DCI transmitted on the overlapped PDCCH candidate is an analysis manner configured in the CSS; or

The determining module is configured to determine, if the overlapped search space is a USS and a USS configured with a first analysis mode exists, that an analysis mode of DCI transmitted on the overlapped PDCCH candidate is the first analysis mode; or

The determining module is configured to determine an analysis manner of DCI transmitted on a first PDCCH candidate in the overlapped PDCCH candidates as an analysis manner configured in a first search space, and determine an analysis manner of DCI transmitted on a second PDCCH candidate in the overlapped PDCCH candidates as an analysis manner configured in a second search space, where a number of the first PDCCH candidate is smaller than a number of the second PDCCH candidate, and an identifier of the first search space is smaller than an identifier of the second search space;

12. The terminal of claim 11, wherein the resource configuration comprises:

search space, or CORESET; or

13. A network-side device, comprising:

a notification module, configured to notify a DCI format or a DCI analysis mode of the DCI through resource configuration or implicit indication;

alternatively, the first and second electrodes may be,

14. The network-side device of claim 13, wherein the resource configuration comprises:

search space, or CORESET; or

15. A terminal, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

alternatively, the first and second electrodes may be,

the processor is used for determining the DCI format or the resolution mode of the DCI according to the resource configuration or the implicit indication; analyzing the DCI according to the DCI format or the analysis mode;

wherein, in the case that different DCI formats are configured in different search spaces of a plurality of search spaces and the plurality of search spaces have overlapping PDCCH candidate locations, the determining the DCI format of the DCI according to the resource configuration or the implicit indication includes:

alternatively, the first and second electrodes may be,

when different analysis methods are configured in different search spaces of a plurality of search spaces and the plurality of search spaces have overlapped PDCCH candidates, the determining the analysis method of the DCI according to the resource configuration or the implicit indication includes:

16. The terminal of claim 15, wherein the resource configuration comprises:

search space, or CORESET; or

17. A network-side device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is used for notifying the DCI format or the resolution mode of the DCI through resource configuration or implicit indication;

alternatively, the first and second electrodes may be,

18. The network-side device of claim 17, wherein the resource configuration comprises:

search space, or CORESET; or

19. A computer-readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the steps in the DCI parsing method according to any one of claims 1 to 5, or the program, when executed by a processor, implements the steps in the DCI notification method according to any one of claims 6 to 10.