CN115298984A

CN115298984A - Method and device for identifying and configuring downlink control information

Info

Publication number: CN115298984A
Application number: CN202280002278.5A
Authority: CN
Inventors: 朱亚军
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-04
Also published as: WO2024000543A1

Abstract

The disclosure relates to a downlink control information identification and configuration method and a device, wherein the downlink control information identification method comprises the following steps: determining relevant information of Downlink Control Information (DCI); and identifying the type of the DCI according to the relevant information of the DCI, wherein the type is MC-DCI or traditional legacy DCI used for scheduling data of a plurality of cells. According to the present disclosure, after receiving the DCI from the network device, the terminal may determine the relevant information of the DCI, and further determine the DCI type corresponding to the relevant information of the received DCI according to the pre-stored association relationship between the relevant information and the DCI type, that is, determine whether the DCI is MC-DCI for scheduling a plurality of cells or legacy DCI, so as to correctly analyze the DCI by adopting an appropriate analysis method.

Description

Method and device for identifying and configuring downlink control information

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a downlink control information identification method, a downlink control information configuration method, a downlink control information identification apparatus, a downlink control information configuration apparatus, a communication apparatus, and a computer-readable storage medium.

Background

In the related art, one Downlink Control Information (DCI) is only used for scheduling data of one cell, for example, a Physical Uplink Shared Channel (PUSCH) and a Physical Downlink Shared Channel (PDSCH) of one cell.

With the fragmentation of frequency resources, the need to schedule data of multiple cells simultaneously is gradually increased, and in order to reduce the control message overhead, it is proposed to schedule data of multiple cells through a single DCI, for example, a DCI for scheduling multiple cells (data), which may be referred to as MC-DCI, where MC represents a multi-cell (multi-cell) or a multi-carrier (multi-carrier). With the introduction of MC-DCI, the DCI may include MC-DCI or legacy (legacy) DCI, and the MC-DCI is different from the legacy DCI, so how to distinguish MC-DCI from legacy DCI is a technical problem to be solved urgently.

Disclosure of Invention

In view of the above, embodiments of the present disclosure provide a downlink control information identification method, a downlink control information configuration method, a downlink control information identification apparatus, a downlink control information configuration apparatus, a communication apparatus, and a computer-readable storage medium to solve technical problems in the related art.

According to a first aspect of the embodiments of the present disclosure, a method for identifying downlink control information is provided, where the method is performed by a terminal, and the method includes: determining relevant information of Downlink Control Information (DCI); and identifying the type of the DCI according to the relevant information of the DCI, wherein the type is MC-DCI or traditional legacy DCI used for scheduling data of a plurality of cells.

According to a second aspect of the embodiments of the present disclosure, a method for configuring downlink control information is provided, where the method is performed by a network device, and the method includes: determining the type of DCI transmitted to a terminal; and configuring the relevant information of the DCI according to the type.

According to a third aspect of the embodiments of the present disclosure, an apparatus for identifying downlink control information is provided, where the apparatus includes: a processing module configured to determine relevant information of Downlink Control Information (DCI); and identifying the type of the DCI according to the relevant information of the DCI, wherein the type is MC-DCI or traditional legacy DCI used for scheduling data of a plurality of cells.

According to a fourth aspect of the embodiments of the present disclosure, an apparatus for configuring downlink control information is provided, where the apparatus includes: a processing module configured to determine a type of DCI transmitted to a terminal; and configuring the relevant information of the DCI according to the type.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a communication apparatus including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by a processor, the method for identifying the downlink control information is realized.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a communication apparatus including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by a processor, the method for configuring the downlink control information is realized.

According to a seventh aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided for storing a computer program, and when the computer program is executed by a processor, the steps in the downlink control information identification method are implemented.

According to an eighth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided for storing a computer program, and when the computer program is executed by a processor, the steps in the above downlink control information configuring method are implemented.

According to the embodiment of the disclosure, after receiving the DCI from the network device, the terminal may determine the relevant information of the DCI, and further determine the DCI type corresponding to the relevant information of the received DCI according to the pre-stored association relationship between the relevant information and the DCI type, that is, determine whether the DCI is MC-DCI for scheduling a plurality of cells or legacy DCI, so as to correctly resolve the DCI by adopting an appropriate resolving manner.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the description below are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings may be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic flowchart illustrating a downlink control information identification method according to an embodiment of the present disclosure.

Fig. 2 is an application schematic diagram illustrating a downlink control information identification method according to an embodiment of the present disclosure.

Fig. 3 is a schematic application diagram illustrating a downlink control information identification method according to an embodiment of the present disclosure.

Fig. 4 is a schematic flowchart illustrating a downlink control information configuration method according to an embodiment of the present disclosure.

Fig. 5 is a schematic block diagram illustrating a downlink control information identifying apparatus according to an embodiment of the disclosure.

Fig. 6 is a schematic block diagram illustrating a downlink control information configuring apparatus according to an embodiment of the disclosure.

Fig. 7 is a schematic block diagram illustrating an apparatus for downlink control information configuration according to an embodiment of the present disclosure.

Fig. 8 is a schematic block diagram illustrating an apparatus for downlink control information identification according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The word "if," as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination," depending on the context.

For the purposes of brevity and ease of understanding, the terms "greater than" or "less than", "above" or "below" are used herein when characterizing a size relationship. But it will be understood by those skilled in the art that: the term "greater than" also covers the meaning of "greater than or equal to," less than "also covers the meaning of" less than or equal to "; the term "above" encompasses the meaning of "above equal to" and "below" also encompasses the meaning of "below equal to".

MC-DCI as a newly introduced DCI, the format (format) of MC-DCI may be different from that of conventional (legacy) DCI, including, but not limited to, DCI for scheduling single cells, such as DCI format 0_0, DCI format 1_0, DCI format 0_1, DCI format 1_1, DCI format 0_2, DCI format 1_2. And the format of the MC-DCI may be a newly configured format, for example, the MC-DCI may include DCI format 0_3 and DCI format 1_3.

The MC-DCI may be used to schedule multiple cells, and the legacy DCI may be used to schedule a single cell, so the two DCIs have different functions, and the information fields in the two DCIs have different meanings, for example, one type of information field in the MC-DCI may indicate scheduling information of multiple cells, and one type of information field in the legacy DCI may only indicate scheduling information of one cell. Since the meanings of the information fields in the two DCIs are different, and the parsing manners for parsing the two DCIs also different, it is necessary to enable the terminal to determine whether the DCI is MC-DCI or legacy DCI, so as to correctly parse the DCI in the corresponding parsing manner.

Fig. 1 is a schematic flowchart illustrating a downlink control information identification method according to an embodiment of the present disclosure. The downlink control information identification method shown in this embodiment may be executed by a terminal, where the terminal includes but is not limited to a mobile phone, a tablet computer, a wearable device, a sensor, an internet of things device, and other communication devices. The terminal may communicate with network devices including, but not limited to, network devices in 4G, 5G, 6G, etc. communication systems, such as base stations, core networks, etc.

As shown in fig. 1, the downlink control information identification method may include the following steps:

in step S101, determining relevant information of downlink control information DCI;

in step S102, a type of the DCI is identified according to the information related to the DCI, where the type is MC-DCI or legacy DCI for scheduling multiple cell data.

According to the embodiment of the present disclosure, after receiving DCI from a network device, a terminal may determine relevant information of the DCI, and further determine a DCI type corresponding to the received DCI relevant information according to an association relationship between the pre-stored relevant information (which may be determined according to a protocol agreement or determined according to signaling sent by a network) and the DCI type, that is, determine whether the DCI is MC-DCI for scheduling multiple cells or legacy DCI, so as to correctly parse the DCI in a proper parsing manner.

It should be noted that, the embodiments of the present disclosure are mainly used for distinguishing MC-DCI and legacy DCI, and regarding distinguishing between different pieces of DCI in legacy DCI, the distinguishing may be performed according to the size (i.e., occupied bit number) or signaling of the DCI.

For example, DCI format 0_3 denotes MC-DCI for scheduling multi-cell uplink, DCI format 1_3 denotes MC-DCI for scheduling multi-cell downlink, DCI format 0_1 denotes MC-DCI for scheduling single-cell uplink, and DCI format 1_1 denotes MC-DCI for scheduling single-cell downlink. The embodiments of the present disclosure may be used to distinguish DCI format 0_3 from DCI format 0_1, and may also be used to distinguish DCI format 1_3 from DCI format 1_1. On the other hand, the distinction between DCI format 0_1 and DCI format 0_2 in legacy DCI can be made according to the DCI size or signaling. Regarding the distinction between DCI format 0_3 and DCI format 1_3, and the distinction between DCI format 0_1 and DCI format 1_1, can be determined according to the value of the information field in DCI.

In one embodiment, the related information includes one of:

information of resources for receiving the DCI;

a Radio Network Temporary Identity (RNTI) for scrambling the DCI;

indication information for indicating that the DCI is MC-DCI or legacy DCI.

In one embodiment, the identifying the type of the DCI according to the information related to the DCI includes: determining the DCI as MC-DCI under the condition that the relevant information of the DCI is first relevant information; and/or determining that the DCI is legacy DCI when the related information of the DCI is second related information.

In one embodiment, the terminal may determine the RNTI used for scrambling the DCI after receiving the DCI. For example, the correlation between the relevant information and the type of the DCI is that the first RNTI corresponds to legacy DCI, and the second RNTI corresponds to MC-DCI, the received DCI may be determined to be legacy DCI when the RNTI for scrambling the DCI is determined to be the first RNTI, and the received DCI may be determined to be MC-DCI when the RNTI for scrambling the DCI is determined to be the second RNTI. The first RNTI may be a cell radio network temporary identity C-RNTI, the second RNTI may be other RNTIs, such as a newly set RNTI, which may be referred to as an MC-RNTI, where the MC represents a Multi-cell or Multi-carrier, or an MCs-SC-RNTI, where the MCs represents Multi-carrier scheduling and the SC represents a scheduling cell.

Fig. 2 is an application schematic diagram illustrating a downlink control information identification method according to an embodiment of the present disclosure. As shown in fig. 2, for example, taking 3 cells, cell #0, cell #1, and Cell #2, as an example, after the terminal receives DCI in Cell #0, the terminal may determine an RNTI used for scrambling the DCI.

When the RNTI of the scrambled DCI is determined to be MCS-SC-RNTI, the DCI may be determined to be used for scheduling a plurality of cells, for example, 3 cells (for example, scheduling PDSCH) of Cell #0, cell #1, and Cell # 2. When the RNTI of the scrambled DCI is determined to be C-RNTI, the DCI may be determined to be used for scheduling a single Cell, e.g., scheduling Cell #1.

In an embodiment, a terminal may receive indication information indicating that the DCI is MC-DCI or legacy DCI, where the indication information includes, but is not limited to, radio Resource Control (RRC) signaling, an information field that is preferentially resolved in the DCI, and the like. After receiving the DCI, the terminal may determine whether the received DCI is MC-DCI or legacy DCI according to the indication information.

Wherein, the indication information may occupy 1 bit or 2 bits.

In case that the indication information occupies 1 bit, the indication information may be used to distinguish whether the DCI is MC-DCI or legacy DCI. For example, 0 indicates that the DCI is legacy DCI, and 1 indicates that the DCI is MC-DCI.

Under the condition that the indication information occupies 2 bits, the indication information can be used for distinguishing whether the DCI is MC-DCI or legacy DCI, and can further distinguish whether the DCI is used for scheduling uplink or downlink. For example, 00 indicates that DCI is MC-DCI for scheduling uplink (e.g., DCI 0_3), 01 indicates that DCI is MC-DCI for scheduling downlink (e.g., DCI 1_3), 10 indicates that DCI is legacy DCI for scheduling uplink (e.g., DCI 0_1), and 11 indicates that DCI is legacy DCI for scheduling downlink (e.g., DCI 1_1).

It should be noted that the association relationship between the relevant information and the type of the DCI may be indicated by the network device, may also be agreed by the protocol, and may also be a candidate set of the agreed association relationship agreed by the protocol, and then the network device indicates an association relationship in the candidate set to the terminal through the indication information.

In one embodiment, a terminal may determine resources for receiving DCI after receiving the DCI. For example, the correlation between the relevant information and the type of the DCI is that the first resource corresponds to legacy DCI, and the second resource corresponds to MC-DCI, when it is determined that the DCI is received in the first resource, the received DCI may be determined to be legacy DCI, and when it is determined that the DCI is received in the second resource, the received DCI may be determined to be MC-DCI.

In one embodiment, the resources include at least one of:

a Cell;

partial BandWidth BWP (BandWidth Part);

search Space SS (Search Space).

For example, the association relationship is that the first BWP set corresponds to legacy DCI, and the second BWP set corresponds to MC-DCI. When it is determined that the DCI is received at BWP #1, if BWP #1 belongs to the first BWP set, the received DCI may be determined to be legacy DCI, and when it is determined that the DCI is received at BWP #2, if BWP #2 belongs to the second BWP set, the received DCI may be determined to be MC-DCI.

In one embodiment, the information of the SS includes at least one of:

identification of the SS;

an identification of a Control Resource Set (CORESET) associated with the SS;

the number of Physical Downlink Control Channel (PDCCH) candidates in the SS;

monitoring time slot period of SS;

the starting position of the time slot of the SS;

the number of monitoring time slots of the SS;

the SS listens for a symbol start position in its slot.

The Information Element (IE) of the SS includes searchspace id (search space identifier), controlResourceSetId (control resource set identifier), nrofCandidates (number of PDCCH candidates at multiple aggregation levels), monitoratpriorityandoffset (search space configuration period and corresponding slot offset), duration (number of search space persistent slots), and monitorambols within slot (starting position of CORESET symbol associated with search space within a slot range).

Wherein, the identification of the SS can be determined according to searchSpaceid; the identity of the CORESET with which the SS is associated may be determined from the controlResourceSetId; the number of PDCCH candidates in the SS may be determined according to nrofCandidates; the listening slot period of the SS and the start position of the slot of the SS may be determined according to monitongslotperiodicityandoffset; the number of listening slots of the SS may be determined according to the duration; the number of listening symbols in the slot of the SS may be determined according to monitorngsymbols within the slot of the SS.

In one embodiment, the slot (slot) slot position of the SS is exemplified.

When determining that the starting position of a time slot for configuring an SS (in all embodiments of the present disclosure, determining a configured SS by a terminal may refer to determining that a network device configures an SS by the terminal) belongs to a first time slot position set, the terminal may determine that DCI (that is, received DCI) blind-detected in the SS is MC-DCI, and when determining that the starting position of the time slot for configuring the SS belongs to a second time slot position set, the terminal may determine that DCI blind-detected in the SS is legacy DCI. Wherein an intersection of the first set of slot positions and the second set of slot positions may be an empty set.

For example, the first set of slot positions contains slot start indices that are odd and the second set of slot positions contains slot start indices that are even. The terminal may determine that the starting position of the time slot in which the SS is configured belongs to the first time slot position set under the condition that the starting position of the time slot in which the SS is configured is determined to be an odd number, and then may determine that the DCI blind detected in the SS is MC-DCI.

For example, the first set of slot positions includes a slot start index smaller than N, the second set of slot positions includes a slot start index greater than or equal to N, N is a positive integer, and N may be determined through a predefined or signaling manner. Illustratively, N is an upward integer of Ts/2, where Ts is the configuration period of SS. Taking the configuration period of the first SS and the second SS equal to 4 slots as an example, ts =4, corresponding to N =2.

Fig. 3 is a schematic application diagram illustrating a downlink control information identification method according to an embodiment of the present disclosure. As shown in fig. 3, if the terminal determines that the starting position of the time slot configured with the SS is 0 or 1 and belongs to the first time slot position set, it may be determined that the DCI blind detected in the SS is MC-DCI; if the terminal determines that the starting position of the time slot configured with the SS is 2 or 3 and belongs to the second time slot position set, the DCI blind detected in the SS may be determined to be legacy DCI.

In one embodiment, the example is illustrated with a listening slot period of an SS.

The terminal may determine that the DCI blind-checked in the SS is MC-DCI when determining that the listening slot period configured with the SS belongs to the first period set, and may determine that the DCI blind-checked in the SS is legacy DCI when determining that the starting position of the slot configured with the SS belongs to the second period set. Wherein, the intersection of the first periodic set and the second periodic set may be an empty set.

For example, the first set of periods is { sl1, sl4, sl8, sl16, sl40, sl160, sl640, sl2560}, and the second set of periods is { sl2, sl5, sl10, sl20, sl80, sl320, sl1280}. If the terminal determines that the monitoring time slot period configured with the SS is sl4 and belongs to the first period set, the DCI which is blindly detected in the SS can be determined to be MC-DCI; if the terminal determines that the listening slot period configured with the SS is sl5 and belongs to the second period set, the DCI blindly detected in the SS may be determined to be legacy DCI.

In one embodiment, the number of listening slots of the SS (specifically, the number of listening slots in one period of the SS) is used for example.

The terminal may determine that the DCI blind-detected in the SS is MC-DCI when determining that the number of listening slots configured with the SS belongs to the first set of numbers of slots, and may determine that the DCI blind-detected in the SS is legacy DCI when determining that the number of listening slots configured with the SS belongs to the second set of numbers of slots. And the intersection of the first time slot number set and the second time slot number set can be an empty set.

For example, the first set of numbers of slots contains a number of slots belonging to an odd number, and the second set of numbers of slots contains a number of slots belonging to an even number. The terminal may determine that the number of timeslots of the SS belongs to the first set of numbers of timeslots under the condition that it is determined that the number of timeslots in which the SS is configured is odd, and then may determine that the DCI that is blind detected in the SS is MC-DCI.

In one embodiment, the listening symbol start position within the slot of the SS is exemplified.

When determining that the initial position of the monitoring symbol in the time slot configured with the SS belongs to the first symbol position set, the terminal may determine that the DCI blind-detected in the SS is MC-DCI, and when determining that the initial position of the monitoring symbol in the time slot configured with the SS belongs to the second symbol position set, the terminal may determine that the DCI blind-detected in the SS is legacy DCI. Wherein, the intersection of the first symbol position set and the second symbol position set may be an empty set.

For example, the first set of symbol positions includes intra-slot listening symbol start position indices belonging to odd numbers, and the second set of symbol positions includes intra-slot listening symbol start position indices belonging to even numbers. Under the condition that the initial position of the monitoring symbol in the time slot configured with the SS is determined to be an odd number, the terminal can determine that the initial position of the monitoring symbol in the time slot configured with the SS belongs to the first time slot position set, and then can determine that the DCI detected in the SS in a blind manner is MC-DCI.

For example, the index of the starting position of the listening symbol in the slot included in the first set of slot positions is smaller than N1, the index of the starting position of the listening symbol in the slot included in the second set of slot positions is greater than or equal to N1, N1 is a positive integer, and may be determined by a predefined or signaling manner, for example, N1=7. When the terminal determines that the initial position of the monitoring symbol in the time slot configured with the SS is 3, that is, smaller than N1, it may be determined that the initial position of the monitoring symbol in the time slot configured with the SS belongs to the first time slot position set, and then it may be determined that the DCI blind detected in the SS is MC-DCI.

In one embodiment, the number of PDCCH candidates in the SS is taken as an example.

The terminal may determine that the DCI blind-detected in the SS is MC-DCI when determining that the number of PDCCH candidates in the configured SS belongs to the first number set, and may determine that the DCI blind-detected in the SS is legacy-DCI when determining that the number of PDCCH candidates in the configured SS belongs to the second number set. Wherein, the intersection of the first quantity set and the second quantity set may be an empty set. The number of PDCCH candidates in this embodiment may be the sum of the numbers of PDCCH candidates corresponding to different Aggregation Levels (AL), or may be the number of PDCCH candidates corresponding to a specific Aggregation Level (e.g., AL 16) (e.g., protocol agreement or network indication).

For example, the first set of numbers comprises numbers belonging to an odd number, e.g. the first set of numbers is { n1, n3, n5}, and the second set of numbers comprises numbers belonging to an even number, e.g. the second set of numbers is { n0, n2, n4, n6, n8}. The terminal may determine that the starting position of the monitoring symbol in the time slot of the SS belongs to the first quantity set when determining that the number of PDCCH candidates in the configured SS is odd, and then may determine that the DCI blind detected in the SS is MC-DCI. The terminal may determine that the start position of the monitored symbol in the time slot of the SS belongs to the second number set when determining that the number of PDCCH candidates in the configured SS is an even number, and then may determine that the DCI blind detected in the SS is legacy DCI.

In one embodiment, the identification of the SS is taken as an example.

The terminal may determine that the DCI blind-checked in the SS is MC-DCI when determining that the identifier configuring the SS belongs to the first SS identifier set, and may determine that the DCI blind-checked in the SS is legacy DCI when determining that the identifier configuring the SS belongs to the second SS identifier set. And the intersection of the first SS identification set and the second SS identification set can be an empty set.

For example, the SS id included in the first SS id set belongs to an odd number, and the SS id included in the second SS id set belongs to an even number. The terminal may determine that the identity of the SS belongs to the first set of SS identities when determining that the identity of the configured SS is odd, and then may determine that the DCI blind detected in the SS is MC-DCI. The terminal may determine that the identifier of the SS belongs to the second set of SS identifiers when determining that the identifier configuring the SS is an even number, and then may determine that the DCI that is blindly detected in the SS is legacy DCI.

For example, the SS id included in the first set of SS ids is smaller than N2, the SS id included in the second set of SS ids is greater than or equal to N2, and N2 is a positive integer, which may be determined by a predefined or signaling manner. The terminal may determine that the identity of the SS belongs to the first set of SS identities when determining that the identity of the configured SS is smaller than N2, and then may determine that the DCI blind detected in the SS is MC-DCI. The terminal may determine that the identity of the SS belongs to the second set of SS identities when determining that the identity of the configured SS is greater than or equal to N2, and then may determine that the DCI blind detected in the SS is a legacy DCI.

In one embodiment, the identification of the CORESET with which the SS is associated is taken as an example.

The terminal may determine that the DCI blind-checked in the SS is MC-DCI when determining that the identifier configuring the core set associated with the SS belongs to the first core set, and may determine that the DCI blind-checked in the SS is legacy DCI when determining that the identifier configuring the core set associated with the SS belongs to the second core set. And the intersection of the first CORESET identification set and the second CORESET identification set can be an empty set.

For example, the first set of CORESET identifiers includes CORESET identifiers belonging to an odd number, and the second set of CORESET identifiers includes CORESET identifiers belonging to an even number. The terminal may determine that the identity of the CORESET associated with the SS belongs to the first slot position set under the condition that it is determined that the identity of the CORESET associated with the configured SS is odd, and then may determine that the DCI blind detected in the SS is MC-DCI. The terminal may determine that the identity of the CORESET associated with the SS belongs to the second slot position set, and then may determine that the DCI blind detected in the SS is legacy DCI, if it is determined that the identity of the CORESET associated with the SS is configured to be an even number.

For example, the first set of CORESET identifiers includes a CORESET identifier smaller than N3, the second set of CORESET identifiers includes a CORESET identifier greater than or equal to N3, N3 is a positive integer, and may be determined by a predefined or signaling manner. The terminal may determine that the identity of the CORESET associated with the SS belongs to the first CORESET identity set when determining that the identity of the CORESET associated with the SS is configured to be less than N3, and then may determine that the DCI blind detected in the SS is MC-DCI. The terminal may determine that the identity of the core set associated with the SS belongs to the second core set of identities when determining that the identity of the core set associated with the SS is configured to be greater than or equal to N3, and then may determine that the DCI blind detected in the SS is legacy DCI.

Fig. 4 is a schematic flowchart illustrating a downlink control information configuration method according to an embodiment of the disclosure. The downlink control information configuration method shown in this embodiment may be executed by a network device, where the network device may communicate with a terminal, the network device includes but is not limited to a base station in a communication system such as a 4G base station, a 5G base station, and a 6G base station, and the terminal includes but is not limited to a communication device such as a mobile phone, a tablet computer, a wearable device, a sensor, and an internet of things device.

As shown in fig. 4, the downlink control information configuring method may include the following steps:

in step S401, the type of DCI transmitted to the terminal is determined;

in step S402, the relevant information of the DCI is configured according to the type.

According to the embodiment of the disclosure, when the network sends the DCI to the terminal, the network may set the relevant information of the DCI according to the association relationship between the relevant information of the DCI and the type of the DCI, so that after the terminal receives the DCI from the network device, the terminal may determine the type of the DCI corresponding to the relevant information of the received DCI according to the association relationship between the relevant information stored in advance (for example, determined according to a protocol convention or determined according to signaling sent by the network) and the type of the DCI, that is, determine whether the DCI is MC-DCI for scheduling a plurality of cells or legacy-DCI, so as to correctly analyze the DCI in a proper analysis manner.

In one embodiment, the related information includes one of:

information of resources for transmitting the DCI;

an RNTI for scrambling the DCI;

indication information for indicating that the DCI is MC-DCI or legacy DCI.

In one embodiment, the identifying the type of the DCI according to the information related to the DCI includes: configuring relevant information of the DCI as first relevant information under the condition that the DCI is determined to be MC-DCI; and/or configuring the relevant information of the DCI as second relevant information under the condition that the DCI is determined to be legacy DCI.

In one embodiment, the network device may employ different RNTIs for legacy DCI and MC-DCI for scrambling. For example, the correlation between the relevant information and the type of the DCI is that the first RNTI corresponds to legacy DCI, and the second RNTI corresponds to MC-DCI, when it is determined that the DCI required to be sent to the terminal is legacy DCI, the first RNTI may be used to scramble the DCI, so that after the terminal receives the DCI, the terminal may determine that the DCI is legacy DCI according to the RNTI that scrambles the DCI; when the DCI needing to be sent to the terminal is determined to be the MC-DCI, the DCI can be scrambled by adopting the second RNTI, so that the terminal can determine that the DCI is the MC-DCI according to the RNTI of the scrambled DCI after receiving the MC-DCI. The first RNTI may be a cell radio network temporary identity C-RNTI, the second RNTI may be another RNTI, such as a newly set RNTI, which may be called MC-RNTI, where MC denotes multi-cell or multi-carrier, or MCs-SC-RNTI, where MCs denotes multi-carrier scheduling, and SC denotes a scheduling cell.

In one embodiment, for legacy DCI and MC-DCI, the network device may send different indication information to the terminal to indicate that the DCI sent by the terminal to the terminal is MC-DCI or legacy DCI. The indication information includes, but is not limited to, radio resource control signaling, an information field to be preferentially resolved in the DCI, and the like. After receiving the DCI, the terminal may determine whether the received DCI is MC-DCI or legacy DCI according to the indication information.

Wherein, the indication information may occupy 1 bit or 2 bits.

In the case that the indication information occupies 2 bits, the indication information may be used to distinguish whether the DCI is MC-DCI or legacy DCI, and may further distinguish whether the DCI is used to schedule uplink or downlink. For example, 00 indicates that the DCI is MC-DCI for scheduling uplink, 01 indicates that the DCI is MC-DCI for scheduling downlink, 10 indicates that the DCI is legacy DCI for scheduling uplink, and 11 indicates that the DCI is legacy DCI for scheduling downlink.

In one embodiment, the network device may transmit with different resources for legacy DCI and MC-DCI. For example, the correlation between the relevant information and the type of the DCI is that the first resource corresponds to legacy DCI, and the second resource corresponds to MC-DCI, when it is determined that the DCI required to be sent to the terminal is legacy DCI, the first resource may be used to send the DCI, so that the terminal may be configured to receive the DCI according to the legacy DCI based on the resource DCI used to receive the DCI; when it is determined that the DCI required to be sent to the terminal is MC-DCI, the DCI can be sent by adopting the second resource, so that the terminal can be MC-DCI according to the DCI used for receiving the DCI after receiving the DCI.

In one embodiment, the resources include at least one of:

a Cell;

a partial bandwidth BWP;

the space SS is searched.

For example, the association relationship is that the first BWP set corresponds to legacy DCI, and the second BWP set corresponds to MC-DCI. When legacy DCI needs to be sent to the terminal, the terminal may select to send the DCI to the terminal at BWP #1 belonging to the first BWP set, and when determining that the DCI is received at BWP #1, the terminal may determine that the received DCI is legacy DCI; when MC-DCI needs to be sent to the terminal, the terminal may select to send DCI to the terminal at BWP #2 belonging to the second BWP set, and when the terminal determines that the DCI is received at BWP #2, the terminal may determine that the received DCI is MC-DCI.

In one embodiment, the information of the SS includes at least one of:

identification of the SS;

identification of a control resource set CORESET associated with the SS;

the number of physical downlink control channel candidates in the SS;

monitoring time slot period of SS;

the starting position of the time slot of the SS;

the number of monitoring time slots of the SS;

the SS listens for a symbol start position in its slot.

Wherein, the identification of the SS can be configured through searchSpaceid; the identity of the CORESET associated with the SS may be configured via controlResourceSetId; the number of PDCCH candidates in the SS may be configured by nrofCandidates; the listening slot cycle of the SS and the start position of the slot of the SS may be configured by monitongslotperiodicityandoffset; the number of the monitoring time slots of the SS can be configured through duration; the number of listening symbols in the slot of the SS may be configured according to monitorngsymbols within the slot of the SS.

Corresponding to the embodiments of the downlink control information identification method and the downlink control information configuration method, the disclosure also provides embodiments of a downlink control information identification device and a downlink control information configuration device.

Fig. 5 is a schematic block diagram illustrating a downlink control information identifying apparatus according to an embodiment of the disclosure. The downlink control information identification device shown in this embodiment may be a terminal or a device formed by modules in the terminal, where the terminal includes but is not limited to a mobile phone, a tablet computer, a wearable device, a sensor, an internet of things device, and other communication devices. The terminal may communicate with network devices including, but not limited to, network devices in 4G, 5G, 6G, etc. communication systems, such as base stations, core networks, etc.

As shown in fig. 5, the downlink control information identifying apparatus includes:

a processing module 501 configured to determine relevant information of downlink control information DCI; and identifying the type of the DCI according to the relevant information of the DCI, wherein the type is MC-DCI or traditional legacy DCI used for scheduling data of a plurality of cells.

In one embodiment, the related information includes one of: information of resources for receiving the DCI; an RNTI for scrambling the DCI; indication information for indicating that the DCI is MC-DCI or legacy DCI.

In one embodiment, the resources include at least one of: a Cell; a partial bandwidth BWP; the space SS is searched.

In one embodiment, the information of the SS includes at least one of: identification of the SS; identification of a control resource set CORESET associated with the SS; the number of physical downlink control channel candidates in the SS; monitoring time slot period of SS; the starting position of the time slot of the SS; the number of monitoring time slots of the SS; the SS listens for a symbol start position in its slot.

In one embodiment, the processing module is configured to determine that the DCI is MC-DCI if the relevant information of the DCI is first relevant information; and/or determining that the DCI is legacy DCI when the related information of the DCI is second related information.

Fig. 6 is a schematic block diagram illustrating a downlink control information configuring apparatus according to an embodiment of the disclosure. The downlink control information configuration device shown in this embodiment may be a terminal, or a device formed by modules in the terminal, where the terminal includes, but is not limited to, a mobile phone, a tablet computer, a wearable device, a sensor, an internet of things device, and other communication devices. The terminal may communicate with network devices including, but not limited to, network devices in 4G, 5G, 6G, etc. communication systems, such as base stations, core networks, etc.

As shown in fig. 6, the downlink control information configuring apparatus includes:

a processing module 601 configured to determine a type of DCI transmitted to a terminal; and configuring the relevant information of the DCI according to the type.

In one embodiment, the related information includes one of: information of resources for transmitting the DCI; an RNTI for scrambling the DCI; indication information for indicating that the DCI is MC-DCI or legacy DCI.

In one embodiment, the processing module is configured to configure the relevant information of the DCI as first relevant information if the DCI is determined to be MC-DCI; and/or configuring the relevant information of the DCI as second relevant information under the condition that the DCI is determined to be legacy DCI.

With regard to the apparatus in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the related method, and will not be described in detail here.

For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, wherein the modules described as separate parts may or may not be physically separate, and the parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

An embodiment of the present disclosure also provides a communication apparatus, including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by a processor, the method for identifying downlink control information according to any of the above embodiments is implemented.

An embodiment of the present disclosure also provides a communication apparatus, including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by a processor, the method for configuring downlink control information according to any of the above embodiments is implemented.

An embodiment of the present disclosure further provides a computer-readable storage medium, configured to store a computer program, where the computer program is executed by a processor, and implements the steps in the downlink control information identification method according to any of the above embodiments.

An embodiment of the present disclosure further provides a computer-readable storage medium, configured to store a computer program, where the computer program is executed by a processor, and implements the steps in the downlink control information configuration method according to any of the foregoing embodiments.

As shown in fig. 7, fig. 7 is a schematic block diagram illustrating an apparatus 700 for downlink control information configuration according to an embodiment of the disclosure. The apparatus 700 may be provided as a base station. Referring to fig. 7, apparatus 700 includes a processing component 722, a wireless transmit/receive component 724, an antenna component 726, and signal processing components specific to the wireless interface, and processing component 722 may further include one or more processors. One of the processors in the processing component 722 may be configured to implement the downlink control information configuration method described in any of the above embodiments.

Fig. 8 is a schematic block diagram illustrating an apparatus 800 for downlink control information identification according to an embodiment of the disclosure. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.

Referring to fig. 8, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the downlink control information identification method described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile storage devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which can be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The apparatus 800 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the downlink control information recognition method described above.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The method and apparatus provided by the embodiments of the present disclosure are described in detail above, and the principles and embodiments of the present disclosure are explained herein by applying specific examples, and the above description of the embodiments is only used to help understanding the method and core ideas of the present disclosure; meanwhile, for a person skilled in the art, based on the idea of the present disclosure, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present disclosure should not be construed as a limitation to the present disclosure.

Claims

1. A downlink control information identification method, implemented by a terminal, the method comprising:

determining relevant information of Downlink Control Information (DCI);

and identifying the type of the DCI according to the relevant information of the DCI, wherein the type is MC-DCI or traditional legacy DCI used for scheduling data of a plurality of cells.

2. The method of claim 1, wherein the related information comprises one of:

information of resources for receiving the DCI;

a Radio Network Temporary Identifier (RNTI) for scrambling the DCI;

indication information for indicating that the DCI is MC-DCI or legacy DCI.

3. The method of claim 2, wherein the resource comprises at least one of:

a Cell;

a partial bandwidth BWP;

the space SS is searched.

4. The method of claim 3, wherein the information of the SS comprises at least one of:

identification of the SS;

identification of a control resource set CORESET associated with the SS;

the number of physical downlink control channel candidates in the SS;

monitoring time slot period of SS;

the starting position of the time slot of the SS;

the number of monitoring time slots of the SS;

the SS listens for a symbol start position in its slot.

5. The method according to any one of claims 1 to 4, wherein the identifying the type of the DCI according to the information related to the DCI comprises:

determining the DCI as MC-DCI under the condition that the relevant information of the DCI is first relevant information;

and/or

And determining that the DCI is legacy DCI when the related information of the DCI is second related information.

6. A method for configuring downlink control information, the method being performed by a network device, the method comprising:

determining the type of DCI transmitted to a terminal;

and configuring the relevant information of the DCI according to the type.

7. The method of claim 6, wherein the related information comprises one of:

information of resources for transmitting the DCI;

a Radio Network Temporary Identifier (RNTI) for scrambling the DCI;

indication information for indicating that the DCI is MC-DCI or legacy DCI.

8. The method of claim 7, wherein the resource comprises at least one of:

a Cell;

a partial bandwidth BWP;

the space SS is searched.

9. The method of claim 8, wherein the information of the SS comprises at least one of:

identification of the SS;

identification of a control resource set CORESET associated with the SS;

the number of physical downlink control channel candidates in the SS;

monitoring time slot period of SS;

the starting position of the time slot of the SS;

the number of monitoring time slots of the SS;

the SS listens for a symbol start position in its slot.

10. The method according to any of claims 6 to 9, wherein the identifying the type of the DCI according to the information related to the DCI comprises:

configuring relevant information of the DCI as first relevant information under the condition that the DCI is determined to be MC-DCI;

and/or

And configuring the relevant information of the DCI as second relevant information under the condition that the DCI is determined to be legacy DCI.

11. An apparatus for identifying downlink control information, the apparatus comprising:

a processing module configured to determine relevant information of Downlink Control Information (DCI); and identifying the type of the DCI according to the relevant information of the DCI, wherein the type is MC-DCI or traditional legacy DCI used for scheduling data of a plurality of cells.

12. An apparatus for configuring downlink control information, the apparatus comprising:

a processing module configured to determine a type of DCI transmitted to a terminal; and configuring the relevant information of the DCI according to the type.

13. A communications apparatus, comprising:

a processor;

a memory for storing a computer program;

wherein the computer program, when executed by a processor, implements the downlink control information identifying method of any one of claims 1 to 5.

14. A communications apparatus, comprising:

a processor;

a memory for storing a computer program;

wherein the computer program, when executed by a processor, implements the downlink control information configuration method of any one of claims 6 to 10.

15. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps in the downlink control information identifying method according to any one of claims 1 to 5.

16. A computer-readable storage medium storing a computer program, wherein the computer program is configured to implement the steps of the downlink control information configuring method according to any one of claims 6 to 10 when executed by a processor.