CN114071749A

CN114071749A - Monitoring method, device and equipment of physical downlink control channel

Info

Publication number: CN114071749A
Application number: CN202010791677.7A
Authority: CN
Inventors: 李东儒; 吴凯; 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2022-02-18
Also published as: WO2022028524A1

Abstract

The application discloses a monitoring method, a device and equipment of a physical downlink control channel, belonging to the field of communication, wherein the method comprises the following steps: monitoring candidate PDCCHs in a first time interval according to a first mapping rule, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer which is greater than or equal to 1; the first mapping rule is to indicate at least one of: a mapping priority of a first SS set within the first time interval; monitoring a CORESET rule when N CORESETs are overlapped in resources at the PDCCH monitoring time, wherein N is an integer greater than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span. The first mapping rule provided in this embodiment may be applicable to PDCCH candidate monitoring that satisfies the mapping rule over more than 1 timeslot or 1 monitoring span, and meanwhile, this embodiment of the present application may also provide a monitoring rule of a CORESET that is applicable when multiple CORESET resources conflict.

Description

Monitoring method, device and equipment of physical downlink control channel

Technical Field

The present application relates to the field of communications, and in particular, to a method, an apparatus, and a device for monitoring a physical downlink control channel.

Background

In a mobile communication system, when a User Equipment (UE, which may also be referred to as a terminal device, a terminal, etc.) is configured with more than one Search Space (SS) set (set), since a listening opportunity (monitoring opportunity) of each SS set is independently configured, the number of candidate Physical Downlink Control channels (PDCCH candidates) or Control Channel Elements (CCEs) varies between slots (slots). Therefore, the number of candidate PDCCHs or CCEs per slot or per listening span (span) that a network side device (such as a base station) is allowed to configure for a UE exceeds the capability limit, i.e., over-rating (over-rating), of the UE. For each time slot or each monitoring span, the UE and the network side equipment need to agree on a specific SS set mapping rule, determine the SS set priority size according to the mapping rule, and map the candidate PDCCH and CCE in each time slot or each monitoring span according to the SS set priority.

However, the above-mentioned existing SS set mapping rule is not applicable to a PDCCH repeated transmission scenario, and is not applicable to candidate PDCCH monitoring in more than 1 slot or 1 monitoring span.

Disclosure of Invention

The embodiment of the application provides a method, a device and equipment for monitoring a physical downlink control channel, which can solve the problems that the existing SS set mapping rule cannot be applied to a PDCCH repeated transmission scene and is not applicable to candidate PDCCH monitoring on more than 1 time slot or 1 monitoring span.

In a first aspect, a method for monitoring a physical downlink control channel is provided, which is applied to a terminal device, and the method includes:

monitoring a candidate Physical Downlink Control Channel (PDCCH) in a first time interval according to a first mapping rule, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

In a second aspect, an apparatus for monitoring a physical downlink control channel is provided, where the apparatus includes:

a monitoring module, configured to monitor a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

In a third aspect, a terminal device is provided, which includes: a memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method according to the first aspect.

In a fourth aspect, a method for monitoring a physical downlink control channel is provided, where the method is applied to a network side device, and the method includes:

according to a first mapping rule, transmitting a candidate Physical Downlink Control Channel (PDCCH) in a first time interval, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

In a fifth aspect, an apparatus for monitoring a physical downlink control channel is provided, where the apparatus includes:

a transmission module, configured to transmit a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

A sixth aspect provides a network side device, comprising: a memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method according to the fourth aspect.

In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or which program or instructions, when executed by a processor, implement the steps of the method according to the fourth aspect.

In an eighth aspect, a computer program product is provided, which comprises a processor, a memory and a program or instructions stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to the fourth aspect, or which when executed by the processor implements the steps of the method according to the fourth aspect.

In a ninth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a terminal device or a network-side device program or instruction, implement the steps of the method according to the first aspect, or implement the steps of the method according to the fourth aspect.

In the embodiment of the present application, the terminal device may monitor candidate PDCCHs in K slots or K monitoring spans (i.e., a first time interval) according to the first mapping rule. The first mapping rule specifies a mapping priority for the first SS set during the first time interval. Meanwhile, the first mapping rule is not only applicable to the determination of the SS set mapping priority on one time slot or one monitoring span and the monitoring of the candidate PDCCH, but also applicable to the determination of the SS set mapping priority on a plurality of time slots or a plurality of monitoring spans and the monitoring of the candidate PDCCH. In particular, the first mapping rule may be for indicating at least one of: a mapping priority of the first SS set in the first time interval; a CORESET monitoring rule when a plurality of (N) CORESETs have resource overlapping on PDCCH monitoring opportunity; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span. The embodiment of the application provides an SS set mapping rule (or advanced restriction rule) applicable to 1 or more time slots or 1 monitoring span, so as to be applicable to candidate PDCCH monitoring on 1 or more time slots or 1 monitoring span. Meanwhile, the embodiment of the application can also provide the monitoring rule of the CORESET applicable to the conflict of a plurality of CORESET resources.

Drawings

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

FIG. 1 illustrates a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a flowchart illustrating a method for monitoring a physical downlink control channel according to an embodiment of the present application;

fig. 3 is a schematic flowchart of another method for monitoring a physical downlink control channel in this embodiment;

fig. 4 is a schematic structural diagram of an apparatus for monitoring a physical downlink control channel in an embodiment of the present application;

fig. 5 is a schematic structural diagram of another apparatus for monitoring a physical downlink control channel in this embodiment;

fig. 6 is a schematic structural diagram of a communication device in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal device in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network-side device in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, and the techniques may also be applied to applications other than NR system applications, such as the tenthGeneration 6 (6)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a Vehicle-mounted Device (Vehicle UE, VUE), a Pedestrian terminal (Pedestrian UE, PUE), and the like, and the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

The method for configuring the sidelink feedback resource provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 2, an embodiment of the present application provides a method for monitoring a physical downlink control channel, where the method is executed by a terminal device, and the method includes the following steps:

step 201: monitoring a candidate Physical Downlink Control Channel (PDCCH) in a first time interval according to a first mapping rule, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

Optionally, the first SS set satisfies at least one of the following conditions: the first SS set is an SS set on the bandwidth part BWP; the first SS set is an SS set in a search space group on the BWP; the first SS set comprises at least one SS set carrying a repeated PDCCH; the first SS set does not contain an SS set carrying a repeated PDCCH; wherein the duplicate PDCCH is at least part of the candidate PDCCH.

Further alternatively, in the case that the first Search space set (SS set) is an SS set on a Bandwidth Part (BWP), it may be understood that the first SS set is a Part or all SS sets on the BWP of the cell, where the number of the first SS sets may be one or more. That is, the first SS set may be different one or more SS sets for different BWPs of different cells, and may also be the same one or more SS sets.

Further alternatively, in the case that the first SS set is an SS set in a search space group on the BWP, it is understood that the first mapping rule is used to indicate the mapping priority of the first SS set in the search space group in the first time interval. In one example, the first mapping rule is used to indicate mapping priorities of all SS sets (i.e., first SS sets) in a first SS group of the BWP within the first time interval.

Further optionally, when the first SS set includes at least one SS set carrying a duplicate PDCCH. Here, the repeated PDCCH may be understood as a repeated DCI. Further, the repeated PDCCH or the repeated DCI may mean that at least one of the following is the same: the DCI size is the same, the DCI format is the same, and the DCI content is the same. In this way, in the embodiment of the present application, when monitoring a PDCCH candidate, at least the influence of a PDCCH repeated transmission scenario on SS set mapping priority and the like is considered, so that the first mapping rule may be used to determine the mapping priority of the SS set carrying the repeated PDCCH, and is further applicable to a PDCCH repeated transmission scenario. Optionally, the mapping priority may also be referred to as a listening priority.

Optionally, the number of the candidate PDCCHs may be one or more.

In the embodiment of the present application, the terminal device may monitor candidate PDCCHs in K slots or K monitoring spans (i.e., a first time interval) according to the first mapping rule. The first mapping rule specifies a mapping priority for the first SS set during the first time interval. Meanwhile, the first mapping rule is not only applicable to the determination of the SS set mapping priority on one time slot or one monitoring span and the monitoring of the candidate PDCCH, but also applicable to the determination of the SS set mapping priority on a plurality of time slots or a plurality of monitoring spans and the monitoring of the candidate PDCCH. In particular, the first mapping rule may be for indicating at least one of: a mapping priority of the first SS set in the first time interval; a CORESET monitoring rule when a plurality of (N) CORESETs have resource overlapping on PDCCH monitoring opportunity; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span. The embodiment of the application provides an SS set mapping rule (or advanced restriction rule) applicable to 1 or more time slots or monitoring spans, so as to be applicable to candidate PDCCH monitoring on 1 or more time slots or 1 monitoring span, and to be applicable to a PDCCH repeated transmission scenario when a first SS set includes at least one SS set carrying a repeated PDCCH. Meanwhile, the embodiment can also provide the monitoring rule of the CORESET applicable to the conflict of a plurality of CORESET resources.

Optionally, the PDCCH candidates in the first time interval may include repeated PDCCH candidates or no repeated PDCCH candidates.

It should be noted that each PDCCH candidate is carried by one SS set corresponding to the PDCCH candidate. The candidate PDCCHs in each of the above-described first time intervals may be different or the same candidate PDCCH. Further optionally, therefore, in different first time intervals, the candidate PDCCH may or may not include a repeated PDCCH. Further optionally, in a case that the candidate PDCCHs in the first time interval include repeated candidate PDCCHs, the repeated candidate PDCCHs may refer to repeatedly transmitted or repeatedly transmitted candidate PDCCHs. Thus, in the embodiment of the present application, when monitoring the PDCCH candidate, at least the influence of the PDCCH repeated transmission scenario on the SS set mapping priority and the like is considered, so that the first mapping rule is further applicable to the PDCCH repeated transmission scenario.

Further optionally, the value of K is a maximum repetition number of repeated PDCCHs within all cross-slots or all cross-monitoring spans of the BWP of the cell.

Further optionally, the SS set in which the PDCCH candidate is located includes, but is not limited to, a terminal-Specific Search space set (USS set) and/or a Common Search space set (CSS set). Wherein the CSS set may be Type 3CSS set.

Optionally, in the monitoring method for the PDCCH according to the embodiment of the present application, the following may also be included:

and performing joint detection and/or independent detection on the candidate PDCCHs in the first time interval. Wherein, the joint detection is suitable for the condition that the number of the candidate PDCCHs needing monitoring is multiple.

For example, if the PDCCH candidates include repeated PDCCH candidates, and the repeated PDCCH candidates repeat in a first time interval, where the first time interval is multiple slots or multiple monitoring spans, joint detection may be performed on the repeated PDCCH candidates in the first time interval.

Optionally, the N CORESETs have the same or different Quasi co-location (QCL) type D attributes.

reporting indication information before monitoring a candidate Physical Downlink Control Channel (PDCCH) in a first time interval according to the first mapping rule, wherein the indication information is used for indicating whether the first mapping rule is supported.

In this embodiment, before detecting (or monitoring) the PDCCH candidate in the first time interval according to the first mapping rule, the terminal device may report in advance whether or not it supports the first mapping rule, so that the network side device may perform SS set configuration according to the specific situation reported by the terminal device. In an example, if the terminal device reports that the terminal device itself supports the first mapping rule in the first time interval, the network side device may configure the SS set according to the reported content and the first mapping rule, so that the terminal device may further detect the PDCCH candidate in the first time interval according to the first mapping rule.

Further optionally, the indication information is used to indicate whether the first mapping rule is supported when the first time interval is greater than or equal to two time slots or two listening spans.

Optionally, in the monitoring method for the PDCCH according to the embodiment of the present application, at least one of the following items is configured or agreed by a network side device:

(1) a maximum monitored number of candidate PDCCHs in the first time interval. That is, the network side device may configure or agree on the maximum PDCCH candidate number monitored in one timeslot or one monitoring span, or may configure or agree on the maximum PDCCH candidate number monitored in multiple timeslots or multiple monitoring spans.

(2) A maximum number of Control Channel Elements (CCEs) that do not overlap within the first time interval. That is, the network side device may configure or agree on the maximum number of CCEs that do not overlap in one timeslot or one listening span, or may configure or agree on the maximum number of CCEs that do not overlap in multiple timeslots or multiple listening spans.

Optionally, in the monitoring method for PDCCH in the embodiment of the present application, when the first mapping rule indicates a mapping priority of a first SS set in the first time interval, the mapping priority of the first SS set in the first time interval is determined by at least one of:

(1) type of the first SS set. That is, the mapping priority of the SS sets may be determined according to the type of the SS sets, wherein the type of the first SS set includes CSS sets or USS sets. In one example, the mapping priority of CSS set may be higher than the mapping priority of USS set; in another example, the mapping priority of CSS sets may be lower than the mapping priority of USS sets.

(2) The index value of the first SS set. That is, the mapping priority of the SS set may be determined according to the size of the index value of the SS set. In one example, it may be that the larger the index value of an SS set, the lower the mapping priority of the SS set. In another example, it may be that the smaller the index value of an SS set, the lower the mapping priority of the SS set.

(3) The number of repetitions of the first SS set. That is, the mapping priority of the SS sets may be determined according to the number of repetitions of the SS sets. In one example, it may be that the greater the number of repetitions of SS sets, the higher the mapping priority of SS sets.

Further optionally, the number of repetitions of the first SS set may correspond to different values in a scene repeated in different units, including but not limited to the following cases:

(a) in the case where the first SS set is repeated in SS set units, the number of repetitions of the first SS set is equal to the number of repetitions of the first SS set. That is, in the case where the first SS set is repeated according to SS set, the number of repetitions of the first SS set is equal to the number of repetitions of the first SS set.

(b) In the case where the first SS set is repeated in units of Aggregation Levels (AL), the number of repetitions of the first SS set is: the maximum number of AL repetitions of all AL repetitions configured in the first SS set, or the sum of all AL repetitions configured in the first SS set. That is, in the case where the first SS set is repeated according to an aggregation level AL, the number of times the first SS set is repeated is: a maximum number of repetitions of AL among the number of repetitions of all AL arranged in the first SS set, or a sum of the number of repetitions of all AL arranged in the first SS set.

(c) When the first SS set is repeated in units of a downlink control information format DCI format, the number of times the first SS set is repeated is: the maximum repetition number of the DCI formats among the repetition numbers of all the DCI formats configured in the first SS set, or the sum of the repetition numbers of all the DCI formats configured in the first SS set. That is, when the first SS set is repeated according to DCI format, the number of times the first SS set is repeated is: the maximum repetition number of the DCI formats in all the repetition numbers of the DCI formats configured in the first SS set, or the sum of the repetition numbers of all the DCI formats configured in the first SS set.

Further optionally, there may be a certain mapping relationship between the number of repetitions of the first SS set and the index value of the first SS set, specifically, if the number of repetitions of the first SS set is greater, the index value of the first SS set is greater; alternatively, the index value of the first SS set is larger as the number of repetitions of the first SS set is smaller. Further optionally, if the number of repetitions of the plurality of SS sets in the first SS set is the same, the mapping order of the index values of the plurality of SS sets with the same number of repetitions may be random.

(4) The number of completed repetitions of the first SS set. That is, the mapping priority of the SS set may be determined according to the number of completed repetitions of the SS set. In one example, it may be that the greater the number of times an SS set has been repeated, the lower the mapping priority of the SS set.

(5) And configuring network side equipment, wherein the first SS set is scrambled by a specific Radio Network Temporary Identifier (RNTI) or contains a specific downlink control information format (DCI format). That is to say, the mapping priority of the first SS set scrambled by a specific radio network temporary identifier RNTI or containing a specific downlink control information format DCI format may be determined in a network side configuration manner. In one example, when the first SS set is scrambled by Paging RNTI (P-RNTI), its mapping priority may be configured to be lowest by the network side device.

(6) And agreement convention, wherein the first SS set is scrambled by a specific Radio Network Temporary Identifier (RNTI) or contains a specific downlink control information format (DCI format). That is, the mapping priority of the first SS set scrambled by a specific RNTI or containing a specific DCI format may be determined by a manner agreed by a protocol. In one example, when the first SS set is scrambled by the P-RNTI, its mapping priority may be lowest as agreed upon by the protocol.

Further alternatively, when the mapping priority of the SS set is determined by a plurality of the above conditions (1), (2), (3), (4), (5), (6), there may be a priority ranking between the conditions (1), (2), (3), (4), (5), (6), for example, the priority ranking of these conditions may be (1) > (2) > (3) > (4) > (5) > (6), which is not particularly limited herein.

In one example, the mapping priority of the first SS set in the first time interval is determined by a type of the first SS set, an index value of the first SS set, and a number of times of repetition of the first SS set. At this time, the plurality of mapping conditions may be: the mapping priority of CSS set in the type of the appointed SS set is higher than that of USS set; the smaller the index value of the appointed SS set is, the higher the mapping priority of the SS set is; the greater the number of repetitions of a given SS set, the higher the mapping priority of that SS set. And the priority ordering among the plurality of mapping conditions is as follows: (1) > (3) > (2). The following SS sets are available: USS set1, repeat number 2; USS set2, repeat number 3; USS set3 repeated 2 times; CSS set1, repeat number 2; CSS set2, repeat number 1. Then the SS set priority order is uniquely determined according to the three conditions: CSS set1> CSS set2> USS set2> USS set1> USS set 3.

In another example, the mapping priority of the first SS set within the first time interval is determined by a type of the first SS set, an index value of the first SS set, and a number of mapping conditions for a number of completed repetitions of the first SS set. At this time, the plurality of mapping conditions may be mapping priorities in which the mapping priority of the CSS set is higher than the USS set in the type of the agreed SS set, respectively; the smaller the index value of the appointed SS set is, the higher the priority of the SS set is; the higher the number of completed repetitions of the committed SS set, the lower the priority. And (1) > (4) > (2). The following SS sets are available: USS set1, number of completed repeats 2; USS set2, number of completed repetitions 3; USS set3 has completed repetition number 2; CSS set1, number of completed repetitions 2; CSS set2, 1 for the number of completed repetitions. Then the SS set priority order is uniquely determined according to the three conditions: CSS set2> CSS set1> USS set1> USS set2> USS set 2.

In yet another example, the mapping priority of the first SS set in the first time interval is determined by a plurality of mapping conditions of a type of the first SS set, an index value of the first SS set, a number of repetitions of the first SS set, and a number of completed repetitions of the first SS set. At this time, the plurality of mapping conditions may be mapping priorities in which the mapping priority of the CSS set is higher than the USS set in the type of the agreed SS set, respectively; the smaller the index value of the appointed SS set is, the higher the priority of the SS set is; the larger the number of repetitions of the contract SS set and the number of completed repetitions, the higher the priority. And (1) > (3) > (4) > (2). The following SS sets are available: USS set1, repeat number 3, completed repeat number 2; USS set2, repeat number 3, completed repeat number 3; USS set3, repeat number 2, completed repeat number 2; CSS set1, repeat number 4, complete repeat number 2; CSS set2, repeat number 3, complete repeat number 1. Then the SS set priority order is uniquely determined according to the three conditions: CSS set1> CSS set2> USS set2> USS set1> USS set 3.

It is to be understood that the mapping rule indicating the above mapping priority, i.e., the first mapping rule, may be adapted to a scenario of PDCCH repeated transmission (PDCCH enhancement) in consideration of at least the number of repetitions of the first SS set and/or the number of completed repetitions of the first SS set in determining the mapping priority of the first SS set in the first time interval.

It should be noted that the agreement in the embodiment of the present application may refer to pre-agreement, pre-definition, or pre-stipulation.

Optionally, in the monitoring method for the PDCCH according to the embodiment of the present application, one of the following contents may also be included:

(1) and adjusting the mapping priority of the first SS set on the M +1 th time slot of the K time slots according to the number of times of the first SS set in the first M time slots of the K time slots.

(2) And according to the number of the completed repetition times of the first SS set in the first M monitoring spans in the K monitoring spans, adjusting the mapping priority of the first SS set on the M +1 th monitoring span in the K monitoring spans.

In this embodiment of the application, during the process of monitoring the PDCCH candidates in K slots or K monitoring spans according to the first mapping rule, the mapping priority on the monitoring span in the subsequent slot or K monitoring spans in the K slots, such as the mapping priority on the M +1 th slot or M +1 monitoring span, may be dynamically adjusted according to the number of times of the completed repetitions of the SS sets in the M monitoring spans in the first M slots or K monitoring spans of the K slots. That is, when the first time interval includes multiple time slots or multiple listening spans, dynamic adjustment of mapping priority on a part of the time slots or listening spans in the first time interval may be implemented.

Wherein M is an integer less than K, and M +1 is an integer less than or equal to K.

Optionally, in the method for monitoring a PDCCH according to the embodiment of the present application, the monitoring rule of the CORESET includes:

and monitoring a first CORESET in the N CORESETs on the PDCCH monitoring occasion, wherein the first CORESET is associated with a second SS set, and the second SS set is the SS set with the highest mapping priority determined in the first SS set based on the first mapping rule.

The overbb rule (i.e., mapping rule) applicable to the PDCCH retransmission scheme according to the embodiment of the present application is described below with reference to specific examples.

In one specific example, the protocol agreed upon mapping priority conditions are: (I) the mapping priority of CSS set is higher than USS set; (II) the smaller the SS setindex, the higher the mapping priority; (III) the higher the number of repetitions of the PDCCH candidate including the aforementioned repeated transmission, the higher the SS set priority.

Optionally, the PDCCHcandidate of AL ═ 4 in the network configuration CSS set2 performs repeat transmission, and the number of repetitions is 2; no duplicate transmission of PDCCHcandidate is configured in CSS set 1; all PDCCHcandidates in USS set1 are transmitted repeatedly, and the repetition frequency is 3; and in the USS set3, the DCI format 1-1 and the DCI format 0-1 are transmitted repeatedly, and the repetition frequency is 3. No duplicate transmission of PDCCHcandidate is configured in USS set 2. And K is 1, the first time interval is 1 slot.

According to the mapping rule in the embodiment of the present application, the sequence of detecting search space sets by a UE in a timeslot is:

and Option 1: CSS set2> CSS set1> USS set1> USS set3> USS set2 (conditions I, II, III were used);

and Option 2: CSS set1> CSS set2> USS set1> USS set2> USS set3 (with condition I, II);

and Option 3: USS set1> USS set3> CSS set2> CSS set1> USS set2 (with condition III).

In another specific example, the protocol agreed upon mapping priority conditions are: (i) the mapping priority of CSS set is higher than USS set; (ii) the smaller the SS setndex, the higher the mapping priority; (iii) the higher the number of repetitions of the PDCCH candidate including the above repeated transmission, the higher the SS set priority; (iv) number of SS sets detected.

Optionally, the priority of the current SS set is determined according to the number of SS sets detected before the current time slot or monitoring span. For example, all PDCCHcandidate in the network configuration USS set1 are transmitted repeatedly, and the number of repetitions is 3, and each repetition is repeated over 3 timeslots. The USS set1 priority in the first slot of the transmission is determined according to the above conditions i, ii, iii, the USS set1 priority in the next slot of the repeated transmission is shifted one bit backward (down) or one bit forward (up) until the USS set1 priority is lowered to the lowest or raised to the highest or all 3 transmissions have been completed.

Referring to fig. 3, an embodiment of the present application provides a method for monitoring a physical downlink control channel, where the method is executed by a network side device, and the method includes the following steps:

step 301: according to a first mapping rule, transmitting a candidate Physical Downlink Control Channel (PDCCH) in a first time interval, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

Further alternatively, in the case that the first SS set is an SS set on the BWP, it is understood that the first SS set is a part or all of SS sets on the BWP of the cell, wherein the number of the first SS sets may be one or more. That is, the first SS set may be different one or more SS sets for different BWPs of different cells, and may also be the same one or more SS sets.

Optionally, the number of the candidate PDCCHs may be one or more.

In this embodiment, the network side device may transmit the PDCCH candidate in K slots or K monitoring spans (i.e., a first time interval) according to a first mapping rule. The first mapping rule specifies a mapping priority for the first SS set during the first time interval. Meanwhile, the first mapping rule is not only applicable to the determination of the SS set mapping priority on one time slot or one monitoring span and the monitoring of the candidate PDCCH, but also applicable to the determination of the SS set mapping priority on a plurality of time slots or a plurality of monitoring spans and the monitoring of the candidate PDCCH. In particular, the first mapping rule may be for indicating at least one of: a mapping priority of the first SS set in the first time interval; a CORESET monitoring rule when a plurality of (N) CORESETs have resource overlapping on PDCCH monitoring opportunity; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span. The embodiment of the application provides an SS set mapping rule (or advanced restriction rule) applicable to 1 or more time slots or 1 monitoring span, so as to be applicable to candidate PDCCH monitoring on 1 or more time slots or 1 monitoring span, and to be applicable to a PDCCH repeated transmission scenario when a first SS set includes at least one SS set carrying a repeated PDCCH. Meanwhile, the embodiment can also provide the monitoring rule of the CORESET applicable to the conflict of a plurality of CORESET resources.

Further optionally, the SS set in which the repeated PDCCH candidates are located includes, but is not limited to, a terminal-specific search space set USS set and/or a first type common search space set CSS set. Wherein the CSS set may be Type 3CSS set.

Optionally, the N CORESET have the same or different QCL type D attributes.

Optionally, in the monitoring method for the PDCCH according to the embodiment of the present application, at least one of the following items may be further included:

(1) configuring a maximum monitoring number of candidate PDCCHs in the first time interval. That is, the network side device may configure the maximum number of PDCCH candidates monitored in one time slot or one monitoring span, or configure the maximum number of PDCCH candidates monitored in multiple time slots or multiple monitoring spans.

(2) Configuring a maximum number of control channel elements, CCEs, that do not overlap within the first time interval. That is, the network-side device may configure the maximum number of CCEs that do not overlap in one timeslot or one listening span, or the network-side device may configure the maximum number of CCEs that do not overlap in multiple timeslots or multiple listening spans.

(5) And configuring network side equipment, wherein the first SS set is scrambled by a specific Radio Network Temporary Identifier (RNTI) or contains a specific downlink control information format (DCI format). That is to say, the mapping priority of the first SS set scrambled by a specific radio network temporary identifier RNTI or containing a specific downlink control information format DCI format may be determined in a network side configuration manner. In one example, when the first SS set is scrambled by the P-RNTI, its lowest mapping priority may be configured by the network side device.

and receiving indication information reported by a terminal device before transmitting a candidate Physical Downlink Control Channel (PDCCH) in a first time interval according to the first mapping rule, wherein the indication information is used for indicating whether the terminal device supports the first mapping rule.

In this embodiment of the present application, before transmitting a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, whether the candidate physical downlink control channel PDCCH supports the first mapping rule may be received in advance, so as to configure an SS set according to a specific situation reported by a terminal device.

Further optionally, the indication information is used to indicate whether the terminal device supports the first mapping rule when the first time interval is greater than or equal to two time slots or two listening spans.

It should be noted that, in the monitoring method for a physical downlink control channel executed by a terminal device according to the embodiment of the present application, an execution main body may be a monitoring apparatus for a physical downlink control channel, or a control module in the monitoring apparatus for a physical downlink control channel, which is used for executing the monitoring method for a physical downlink control channel. In this embodiment, a method for performing, by a monitoring apparatus of a physical downlink control channel, monitoring of the physical downlink control channel is taken as an example, and a monitoring apparatus of the physical downlink control channel provided in this embodiment is described.

Referring to fig. 4, an embodiment of the present application provides a monitoring apparatus 400 for a physical downlink control channel, where the monitoring apparatus 400 for a physical downlink control channel includes:

a monitoring module 401, configured to monitor a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

Optionally, in the monitoring apparatus 400 of a physical downlink control channel according to the embodiment of the present application, the first SS set satisfies at least one of the following conditions:

the first SS set is an SS set on the bandwidth part BWP; the first SS set is an SS set in a search space group on the BWP; the first SS set comprises at least one SS set carrying a repeated PDCCH; the first SS set does not contain an SS set carrying a repeated PDCCH; wherein the duplicate PDCCH is at least part of the candidate PDCCH.

Optionally, in the monitoring apparatus 400 of the physical downlink control channel in the embodiment of the present application, at least one of the following is configured by the network side device or agreed by the protocol:

a maximum monitored number of candidate PDCCHs in the first time interval; a maximum number of control channel elements, CCEs, that do not overlap within the first time interval.

Optionally, in the monitoring apparatus 400 of a physical downlink control channel according to the embodiment of the present application, the mapping priority of the first SS set in the first time interval is determined by at least one of:

a type of the first SS set; an index value of the first SS set; a number of repetitions of the first SS set; a number of completed repetitions of the first SS set; and the network side equipment is configured or agreed by a protocol, wherein the first SS set is scrambled by a specific Radio Network Temporary Identifier (RNTI) or contains a specific downlink control information format (DCI format).

Optionally, in the monitoring apparatus 400 of a physical downlink control channel in the embodiment of the present application, when the first SS set is repeated according to an SS set, the number of times of repetition of the first SS set is equal to the number of times of repetition of the first SS set; in the case where the first SS set is repeated according to an aggregation level AL, the number of repetitions of the first SS set is: a maximum number of repetitions of AL among the number of repetitions of all AL configured in the first SS set, or a sum of the number of repetitions of all AL configured in the first SS set; when the first SS set is repeated according to DCI format, the number of times the first SS set is repeated is: the maximum repetition number of the DCI formats among the repetition numbers of all the DCI formats configured in the first SS set, or the sum of the repetition numbers of all the DCI formats configured in the first SS set.

Optionally, in the monitoring apparatus 400 of a physical downlink control channel in the embodiment of the present application, if the number of times of repetition of the first SS set is greater, the index value of the first SS set is greater; or if the number of times of repetition of the first SS set is smaller, the index value of the first SS set is larger.

Optionally, the apparatus 400 for monitoring a physical downlink control channel according to this embodiment of the present application may further include a processing module, where the processing module is configured to perform one of the following operations:

adjusting the mapping priority of the first SS set on the M +1 th time slot of the K time slots according to the number of times of the first SS set in the first M time slots of the K time slots; and according to the number of the completed repetition times of the first SS set in the first M monitoring spans in the K monitoring spans, adjusting the mapping priority of the first SS set on the M +1 th monitoring span in the K monitoring spans.

Optionally, in the monitoring apparatus 400 of the physical downlink control channel in the embodiment of the present application, the N CORESET have the same or different quasi-co-located QCL type D attributes.

Optionally, in the monitoring apparatus 400 of the physical downlink control channel in the embodiment of the present application, the CORESET monitoring rule includes:

Optionally, the apparatus 400 for monitoring a physical downlink control channel according to this embodiment of the present application may further include:

a reporting module, configured to report indication information before monitoring the candidate physical downlink control channel PDCCH in the first time interval according to the first mapping rule, where the indication information is used to indicate whether the terminal device supports the first mapping rule.

Optionally, in the monitoring apparatus 400 of the physical downlink control channel in the embodiment of the application, the indication information is used to indicate whether the terminal device supports the first mapping rule when the first time interval is greater than or equal to two time slots or two monitoring spans.

Optionally, in the apparatus 400 for monitoring a physical downlink control channel according to the embodiment of the present application, the candidate PDCCHs include repeated candidate PDCCHs.

a detection module, configured to perform joint detection and/or independent detection on the PDCCH candidates in the first time interval.

Optionally, in the monitoring apparatus 400 of a physical downlink control channel in the embodiment of the present application, the SS set in which the candidate PDCCH is located includes a terminal-specific search space set USS set and/or a common search space set CSS set.

In the embodiment of the present application, the terminal device may monitor candidate PDCCHs in K slots or K monitoring spans (i.e., a first time interval) according to the first mapping rule. The first mapping rule specifies a mapping priority for the first SS set during the first time interval. Meanwhile, the first mapping rule is not only applicable to the determination of the SS set mapping priority on one time slot or one monitoring span and the monitoring of the candidate PDCCH, but also applicable to the determination of the SS set mapping priority on a plurality of time slots or a plurality of monitoring spans and the monitoring of the candidate PDCCH. In particular, the first mapping rule may be for indicating at least one of: a mapping priority of the first SS set in the first time interval; a CORESET monitoring rule when a plurality of (N) CORESETs have resource overlapping on PDCCH monitoring opportunity; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span. The embodiment of the application provides an SS set mapping rule (or advanced restriction rule) applicable to 1 or more time slots or 1 monitoring span, so as to be applicable to candidate PDCCH monitoring on 1 or more time slots or 1 monitoring span, and to be applicable to a PDCCH repeated transmission scenario when a first SS set includes at least one SS set carrying a repeated PDCCH. Meanwhile, the embodiment can also provide the monitoring rule of the CORESET applicable to the conflict of a plurality of CORESET resources.

The monitoring device of the physical downlink control channel in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in the terminal device. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The monitoring device of the physical downlink control channel in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The monitoring apparatus for a physical downlink control channel provided in this embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

It should be noted that, in the monitoring method for a physical downlink control channel executed by a network side device according to the embodiment of the present application, an execution main body may be a monitoring apparatus for a physical downlink control channel, or a control module in the monitoring apparatus for a physical downlink control channel, which is used for executing the monitoring method for a physical downlink control channel. In this embodiment, a method for performing, by a monitoring apparatus of a physical downlink control channel, monitoring of the physical downlink control channel is taken as an example, and a monitoring apparatus of the physical downlink control channel provided in this embodiment is described.

Referring to fig. 5, an embodiment of the present application provides a monitoring apparatus 500 for a physical downlink control channel, where the monitoring apparatus 500 for a physical downlink control channel includes:

a transmission module 501, configured to transmit a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

Optionally, in the monitoring apparatus 500 for a physical downlink control channel according to the embodiment of the present application, the first SS set satisfies at least one of the following conditions:

Optionally, the apparatus 500 for monitoring a physical downlink control channel according to this embodiment of the present application may further include a configuration module, where the configuration module is configured to:

configuring a maximum monitoring number of candidate PDCCHs in the first time interval; and/or configuring a maximum number of control channel elements, CCEs, that do not overlap within the first time interval.

Optionally, in the monitoring apparatus 500 for a physical downlink control channel according to the embodiment of the present application, the mapping priority of the first SS set in the first time interval is determined by at least one of:

Optionally, in the monitoring apparatus 500 of a physical downlink control channel in the embodiment of the present application, when the first SS set is repeated according to an SS set, the number of times of repetition of the first SS set is equal to the number of times of repetition of the first SS set; in the case where the first SS set is repeated according to an aggregation level AL, the number of repetitions of the first SS set is: a maximum number of repetitions of AL among the number of repetitions of all AL configured in the first SS set, or a sum of the number of repetitions of all AL configured in the first SS set; when the first SS set is repeated according to DCI format, the number of times the first SS set is repeated is: the maximum repetition number of the DCI formats among the repetition numbers of all the DCI formats configured in the first SS set, or the sum of the repetition numbers of all the DCI formats configured in the first SS set.

Optionally, in the monitoring apparatus 500 of a physical downlink control channel in the embodiment of the present application, if the number of times of repetition of the first SS set is greater, the index value of the first SS set is greater; or if the number of times of repetition of the first SS set is smaller, the index value of the first SS set is larger.

Optionally, in the monitoring apparatus 500 for a physical downlink control channel according to the embodiment of the present application, the N CORESET have the same or different quasi-co-located QCL type D attributes.

Optionally, in the monitoring apparatus 500 for a physical downlink control channel in the embodiment of the present application, the CORESET monitoring rule includes:

Optionally, the apparatus 500 for monitoring a physical downlink control channel according to this embodiment of the present application may further include:

a receiving module, configured to receive indication information reported by a terminal device before the candidate physical downlink control channel PDCCH is transmitted within a first time interval according to the first mapping rule, where the indication information is used to indicate whether the terminal device supports the first mapping rule.

Optionally, in the monitoring apparatus 500 of a physical downlink control channel in the embodiment of the application, the indication information is used to indicate whether the terminal device supports the first mapping rule when the first time interval is greater than or equal to two time slots or two monitoring spans.

Optionally, in the monitoring apparatus 500 for a physical downlink control channel according to the embodiment of the present application, the candidate PDCCHs include repeated candidate PDCCHs.

Optionally, in the monitoring apparatus 500 for a physical downlink control channel in the embodiment of the present application, the SS set in which the candidate PDCCH is located is a terminal-specific search space set USS set and/or a common search space set CSS set.

The monitoring device of the physical downlink control channel in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in the network side device. The apparatus may be a network side device. Illustratively, the network-side device may include, but is not limited to, the types of network-side device 12 listed above.

The monitoring apparatus for a physical downlink control channel provided in this embodiment of the present application can implement each process implemented in the method embodiment of fig. 3, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 6, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement each process of the embodiment of the method for listening to a physical downlink control channel corresponding to fig. 2, and can achieve the same technical effect. When the communication device 600 is a network-side device, the program or the instruction is executed by the processor 601 to implement each process of the embodiment of the monitoring method for a physical downlink control channel corresponding to fig. 3, and the same technical effect can be achieved, and for avoiding repetition, details are not described here again.

Fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts of a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 701 receives downlink data from a network side device and then processes the downlink data in the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions as well as various data. The memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. In addition, the memory 709 may include a high-speed random access memory and a nonvolatile memory, where the nonvolatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that handles primarily the operating system, user interface, and application programs or instructions, etc. and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 710.

The processor 710 is configured to monitor a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1; wherein the first mapping rule is to indicate at least one of: a mapping priority of a first set of search spaces SS set within the first time interval; monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

In the embodiment of the present application, the terminal device may monitor candidate PDCCHs in K slots or K monitoring spans (i.e., a first time interval) according to the first mapping rule. The first mapping rule specifies a mapping priority for the first SS set during the first time interval. Meanwhile, the first mapping rule is not only applicable to the determination of the SS set mapping priority on one time slot or one monitoring span and the monitoring of the candidate PDCCH, but also applicable to the determination of the SS set mapping priority on a plurality of time slots or a plurality of monitoring spans and the monitoring of the candidate PDCCH. In particular, the first mapping rule may be for indicating at least one of: a mapping priority of the first SS set in the first time interval; a CORESET monitoring rule when a plurality of (N) CORESETs have resource overlapping on PDCCH monitoring opportunity; a mapping rule that the candidate PDCCH spans a time slot or a monitoring span. The embodiment of the application provides an SS set mapping rule (or advanced restriction rule) applicable to 1 or more time slots or 1 monitoring span, so as to be applicable to candidate PDCCH monitoring on 1 or more time slots or 1 monitoring span. Meanwhile, the embodiment can also provide the monitoring rule of the CORESET applicable to the conflict of a plurality of CORESET resources.

Optionally, the radio frequency unit 701 is configured to report indication information before monitoring the candidate physical downlink control channel PDCCH in the first time interval according to the first mapping rule, where the indication information is used to indicate whether the first mapping rule is supported.

Optionally, the processor 710 is configured to perform one of the following operations: adjusting the mapping priority of the first SS set on the M +1 th time slot of the K time slots according to the number of times of the first SS set in the first M time slots of the K time slots; and according to the number of the completed repetition times of the first SS set in the first M monitoring spans in the K monitoring spans, adjusting the mapping priority of the first SS set on the M +1 th monitoring span in the K monitoring spans.

The embodiment of the application also provides network side equipment. As shown in fig. 8, the network device 800 includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf device 802 receives information via the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted and transmits the information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

The above band processing means may be located in the baseband means 803, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 803, where the baseband means 803 includes a processor 804 and a memory 805.

The baseband apparatus 803 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, the processor 804, is connected to the memory 805 to call up the program in the memory 805 to perform the network device operations shown in the above method embodiments.

The baseband device 803 may further include a network interface 806, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 802.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 805 and capable of being executed on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in fig. 5, and achieve the same technical effects, which are not described herein for avoiding repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing embodiment of the monitoring method for a physical downlink control channel, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the terminal or the network side device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a computer program product, where the computer program product includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, and when the program or the instruction is executed by the processor, the processes of the monitoring method embodiments of the corresponding pdcch are implemented, and the same technical effect can be achieved, and in order to avoid repetition, the descriptions are omitted here.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a terminal device or a network-side device program or an instruction, to implement each process of the above monitoring method embodiments for a corresponding physical downlink control channel, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be noted that, in this document, 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A monitoring method of a physical downlink control channel is applied to a terminal device, and is characterized in that the method comprises the following steps:

monitoring a candidate Physical Downlink Control Channel (PDCCH) in a first time interval according to a first mapping rule, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer greater than or equal to 1;

wherein the first mapping rule is to indicate at least one of:

a mapping priority of a first set of search spaces SS set within the first time interval;

monitoring a CORESET rule when N control resource sets CORESET are overlapped in PDCCH monitoring time, wherein N is an integer larger than 1;

a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

2. The method of claim 1, wherein the first SS set satisfies at least one of:

the first SS set is an SS set on the bandwidth part BWP;

the first SS set is an SS set in a search space group on the BWP;

the first SS set comprises at least one SS set carrying a repeated PDCCH;

the first SS set does not contain an SS set carrying a repeated PDCCH;

wherein the duplicate PDCCH is at least part of the candidate PDCCH.

3. The method of claim 1, wherein at least one of the following is configured or agreed upon by a network side device:

a maximum monitored number of candidate PDCCHs in the first time interval;

a maximum number of control channel elements, CCEs, that do not overlap within the first time interval.

4. The method of claim 1, wherein a mapping priority of the first SS set in the first time interval is determined by at least one of:

a type of the first SS set;

an index value of the first SS set;

a number of repetitions of the first SS set;

a number of completed repetitions of the first SS set;

network side device configuration or protocol conventions. Wherein, the first SS set is scrambled by a specific Radio Network Temporary Identifier (RNTI) or contains a specific downlink control information format (DCI format).

5. The method of claim 4, wherein the first SS set is repeated a number of times equal to the number of times the first SS set is repeated, if the first SS set is repeated as SS set;

in the case where the first SS set is repeated according to an aggregation level AL, the number of repetitions of the first SS set is: a maximum number of repetitions of AL among the number of repetitions of all AL configured in the first SS set, or a sum of the number of repetitions of all AL configured in the first SS set;

when the first SS set is repeated according to DCI format, the number of times the first SS set is repeated is: the maximum repetition number of the DCI formats among the repetition numbers of all the DCI formats configured in the first SS set, or the sum of the repetition numbers of all the DCI formats configured in the first SS set.

6. The method of claim 4, wherein the index value of the first SS set is larger if the number of repetitions of the first SS set is larger; or

The index value of the first SS set is larger as the number of repetitions of the first SS set is smaller.

7. The method of claim 4, further comprising one of:

adjusting the mapping priority of the first SS set on the M +1 th time slot of the K time slots according to the number of times of the first SS set in the first M time slots of the K time slots;

and according to the number of the completed repetition times of the first SS set in the first M monitoring spans in the K monitoring spans, adjusting the mapping priority of the first SS set on the M +1 th monitoring span in the K monitoring spans.

8. The method of claim 1 wherein the N CORESETs have the same or different quasi co-located QCL type D attributes.

9. The method of claim 1, wherein the CORESET snooping rules comprises:

10. The method according to claim 1, wherein before the monitoring the candidate physical downlink control channel PDCCH in the first time interval according to the first mapping rule, the method further comprises:

and reporting indication information, wherein the indication information is used for indicating whether the terminal equipment supports the first mapping rule.

11. The method of claim 10, wherein the indication information is used to indicate whether the terminal device supports the first mapping rule when the first time interval is greater than or equal to two slots or two listening spans.

12. The method of claim 1, wherein the candidate PDCCHs comprise duplicate candidate PDCCHs.

13. The method according to claim 1 or 12, characterized in that the method further comprises:

and performing joint detection and/or independent detection on the candidate PDCCHs in the first time interval.

14. The method of claim 1, wherein the SS set in which the PDCCH candidate is located comprises a terminal-specific search space set (USS set) and/or a common search space set (CSS set).

15. A monitoring method of a physical downlink control channel is applied to a network side device, and is characterized in that the method comprises the following steps:

according to a first mapping rule, transmitting a candidate Physical Downlink Control Channel (PDCCH) in a first time interval, wherein the first time interval comprises K time slots or K monitoring spans, and K is an integer greater than or equal to 1;

wherein the first mapping rule is to indicate at least one of:

a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

16. The method of claim 15, wherein the first SS set satisfies at least one of:

the first SS set is an SS set on the bandwidth part BWP;

the first SS set is an SS set in a search space group on the BWP;

the first SS set comprises at least one SS set carrying a repeated PDCCH;

the first SS set does not contain an SS set carrying a repeated PDCCH;

wherein the duplicate PDCCH is at least part of the candidate PDCCH.

17. The method of claim 15, further comprising:

configuring a maximum monitoring number of candidate PDCCHs in the first time interval; and/or

Configuring a maximum number of control channel elements, CCEs, that do not overlap within the first time interval.

18. The method of claim 15, wherein a mapping priority of the first SS set in the first time interval is determined by at least one of:

a type of the first SS set;

an index value of the first SS set;

a number of repetitions of the first SS set;

a number of completed repetitions of the first SS set;

and the network side equipment is configured or agreed by a protocol, wherein the first SS set is scrambled by a specific Radio Network Temporary Identifier (RNTI) or contains a specific downlink control information format (DCI format).

19. The method of claim 18, wherein the first SS set is repeated a number of times equal to the number of times the first SS set is repeated, where the first SS set is repeated as SS set;

20. The method of claim 18, wherein the index value of the first SS set is larger if the number of repetitions of the first SS set is larger; or

The smaller the number of repetitions of the first SS set, the larger the index value of the first SS set.

21. The method of claim 15 wherein the N CORESET have the same or different quasi co-located QCL type D attributes.

22. The method of claim 15, wherein the CORESET snooping rules comprise:

23. The method according to claim 15, wherein before the transmitting the candidate physical downlink control channel PDCCH in the first time interval according to the first mapping rule, the method further comprises:

and receiving indication information reported by the terminal equipment, wherein the indication information is used for indicating whether the terminal equipment supports the first mapping rule.

24. The method of claim 23, wherein the indication information is used to indicate whether the terminal device supports the first mapping rule when the first time interval is greater than or equal to two slots or two listening spans.

25. The method of claim 15, wherein the candidate PDCCHs comprise repeated candidate PDCCHs.

26. The method of claim 15, wherein the SS set in which the PDCCH candidate is located is a terminal-specific search space set (USS set) and/or a common search space set (CSS set).

27. A monitoring device for a physical downlink control channel, comprising:

a monitoring module, configured to monitor a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1;

wherein the first mapping rule is to indicate at least one of:

a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

28. The apparatus of claim 27, wherein the first SS set satisfies at least one of:

the first SS set is an SS set on the bandwidth part BWP;

the first SS set is an SS set in a search space group on the BWP;

the first SS set comprises at least one SS set carrying a repeated PDCCH;

the first SS set does not contain an SS set carrying a repeated PDCCH;

wherein the duplicate PDCCH is at least part of the candidate PDCCH.

29. The apparatus of claim 27, wherein a mapping priority of the first SS set in the first time interval is determined by at least one of:

a type of the first SS set;

an index value of the first SS set;

a number of repetitions of the first SS set;

a number of completed repetitions of the first SS set;

30. The apparatus of claim 29, wherein the first SS set is repeated a number of times equal to the number of times the first SS set is repeated, if the first SS set is repeated as SS set;

31. The apparatus of claim 29, wherein the larger the number of repetitions of the first SS set, the larger the index value of the first SS set; or

32. The apparatus of claim 29, further comprising a processing module configured to perform one of:

33. The apparatus of claim 27, wherein the CORESET snooping rules comprise:

34. The apparatus of claim 27, further comprising:

35. The apparatus of claim 27, further comprising:

36. A monitoring device for a physical downlink control channel, comprising:

a transmission module, configured to transmit a candidate physical downlink control channel PDCCH in a first time interval according to a first mapping rule, where the first time interval includes K time slots or K monitoring spans, and K is an integer greater than or equal to 1;

wherein the first mapping rule is to indicate at least one of:

a mapping rule that the candidate PDCCH spans a time slot or a monitoring span.

37. The apparatus of claim 36, wherein the first SS set satisfies at least one of:

the first SS set is an SS set on the bandwidth part BWP;

the first SS set is an SS set in a search space group on the BWP;

the first SS set comprises at least one SS set carrying a repeated PDCCH;

the first SS set does not contain an SS set carrying a repeated PDCCH;

wherein the duplicate PDCCH is at least part of the candidate PDCCH.

38. The apparatus of claim 36, further comprising a configuration module configured to:

39. The apparatus of claim 36, wherein a mapping priority of the first SS set in the first time interval is determined by at least one of:

a type of the first SS set;

an index value of the first SS set;

a number of repetitions of the first SS set;

a number of completed repetitions of the first SS set;

40. The apparatus of claim 39, wherein the first SS set is repeated a number of times equal to the number of times the first SS set is repeated, if the first SS set is repeated according to SS set;

41. The apparatus of claim 39, wherein the larger the number of repetitions of the first SS set, the larger the index value of the first SS set; or

42. The apparatus of claim 36, wherein the CORESET snooping rules comprise:

43. The apparatus of claim 36, further comprising:

44. A terminal device, comprising: memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of any one of claims 1 to 14.

45. A network-side device, comprising: memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of any one of claims 15 to 26.

46. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method of any one of claims 1 to 14, or which when executed by a processor implement the steps of the method of any one of claims 15 to 26.