WO2023165612A1

WO2023165612A1 - Physical downlink control channel monitoring method and apparatus, terminal device, and network device

Info

Publication number: WO2023165612A1
Application number: PCT/CN2023/079625
Authority: WO
Inventors: 周欢
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2022-03-04
Filing date: 2023-03-03
Publication date: 2023-09-07
Also published as: CN116760517A

Abstract

Disclosed in embodiments of the present application are a physical downlink control channel (PDCCH) monitoring method and apparatus, a terminal device, and a network device. The method comprises: a network device sending first information, the first information being used for determining the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs of a terminal device for a scheduled cell in M cells within a time unit, the scheduled cell being a cell supporting multi-carrier scheduling, and M being an integer greater than 1; the terminal device acquires the first information; the terminal device performs PDCCH monitoring according to the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs. Hence, the embodiments of the present application facilitates implementation of PDCCH monitoring under the condition of supporting multi-carrier scheduling, and implement, by means of multi-carrier scheduling, the possibility of reducing the complexity of PDCCH monitoring to save power consumption.

Description

Physical downlink control channel monitoring method and device, terminal equipment and network equipment

technical field

The present application relates to the technical field of communications, and in particular to a method and device for monitoring a physical downlink control channel, terminal equipment, and network equipment.

Background technique

In the carrier aggregation (Carrier Aggregation, CA) scenario, the standard protocol formulated by the 3rd generation partnership project (3GPP) stipulates that a cell either only supports self-carrier scheduling (self-carrier scheduling), or only Supports cross-carrier sheduling.

Currently, the downlink control information (DCI) carried by the Physical Downlink Control Channel (PDCCH) sent on a cell can only schedule one carrier (one component carrier (Component Carrier, CC) or one cell ) within the data transfer.

Since one DCI can only schedule data transmission in one carrier (or one cell), this will cause the terminal device to spend a lot of time in the carrier aggregation scenario, especially when the number of aggregated cells is large and the traffic volume is large. Power consumption is used to monitor (or blindly detect) the PDCCH of each cell. For example, when there are 16 cells aggregated and the downlink traffic volume is large, if downlink data needs to be scheduled on the 16 cells, and one DCI can only schedule data transmission in one cell, the terminal device needs to monitor each The PDCCH of the cell needs to monitor 16 PDCCHs in total (one PDCCH carries one DCI), which causes the terminal device to consume a lot of power consumption in monitoring the PDCCH. In this regard, further research is needed on how to reduce the monitoring complexity of the PDCCH to save power consumption.

Contents of the invention

The present application provides a physical downlink control channel monitoring method and device, terminal equipment and network equipment, which are used to reduce the complexity of PDCCH monitoring to save power consumption.

The first aspect is a physical downlink control channel monitoring method of the present application, which is applied to a terminal device, including:

Acquire first information, the first information is used to determine the maximum number of physical downlink control channel PDCCH candidates and/or non-overlapping channel control elements of the terminal device for the scheduled cell in the M cells within a time unit The maximum number of CCEs is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling means that the physical downlink control information DCI carried by the PDCCH sent on the scheduling cell among the M cells schedules multiple For data transmission in the scheduled cell, M is an integer greater than 1;

Perform PDCCH monitoring according to the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs.

It can be seen that the embodiment of the present application introduces the DCI carried by the PDCCH sent by the scheduling cell in the M cells to schedule data transmission in multiple scheduled cells, that is, multi-carrier scheduling, and determines the terminal device's response time within the time unit through the first information. Limit the maximum number of PDCCH candidates and/or limit the maximum number of non-overlapping CCEs of the scheduled cell in M cells, so that the terminal device can limit the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs Limiting PDCCH monitoring is beneficial to implement PDCCH monitoring when multi-carrier scheduling is supported, and realize the possibility of reducing PDCCH monitoring complexity and saving power consumption through multi-carrier scheduling.

The second aspect is a physical downlink control channel monitoring method of the present application, which is applied to network equipment, including:

Sending the first information, the first information is used to determine the maximum number of physical downlink control channel PDCCH candidates of the terminal device for the scheduled cell in the M cells within a time unit and/or the non-overlapping channel control element CCE The maximum number is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling means that the physical downlink control information DCI carried by the PDCCH sent on the scheduling cell in the M cells schedules multiple For data transmission in the scheduled cell, M is an integer greater than 1, and the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs are used for PDCCH monitoring.

The third aspect is a physical downlink control channel monitoring device of the present application, including:

An obtaining unit, configured to obtain first information, the first information is used to determine the maximum number of physical downlink control channel PDCCH candidates of the scheduled cell among the M cells within a time unit and/or non- The maximum number of overlapping channel control elements CCE is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling indicates the physical downlink control information carried by the PDCCH sent on the scheduling cell among the M cells DCI schedules data transmission in multiple scheduled cells, and M is an integer greater than 1;

A monitoring unit, configured to perform PDCCH monitoring according to the maximum number limitation of the PDCCH candidates and/or the maximum number limitation of the non-overlapping CCEs.

The fourth aspect is a physical downlink control channel monitoring device of the present application, including:

A sending unit, configured to send first information, where the first information is used to determine the maximum number limit and/or non-overlapping of physical downlink control channel PDCCH candidates of the scheduled cell among the M cells within the time unit of the terminal device The maximum number of channel control elements CCE The number of scheduled cells is limited, and the scheduled cell is a cell that supports multi-carrier scheduling. The multi-carrier scheduling means that the physical downlink control information DCI carried by the PDCCH sent on the scheduling cell in the M cells schedules multiple scheduled cells. For data transmission in a cell, M is an integer greater than 1, and the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs are used for PDCCH monitoring.

The fifth aspect is a terminal device of the present application, including a processor, a memory, and computer programs or instructions stored in the memory, wherein, the processor executes the computer program or instructions to realize the above first aspect steps in the designed method.

The sixth aspect is a network device of the present application, including a processor, a memory, and a computer program or instruction stored on the memory, wherein the processor executes the computer program or instruction to realize the above-mentioned second aspect steps in the designed method.

A seventh aspect is a chip of the present application, including a processor, wherein the processor executes the steps in the method designed in the above-mentioned first aspect or the second aspect.

The eighth aspect is a chip module of the present application, including a transceiver component and a chip, and the chip includes a processor, wherein the processor executes the steps in the method designed in the first aspect or the second aspect.

The ninth aspect is a computer-readable storage medium of the present application, wherein it stores computer programs or instructions, and when the computer programs or instructions are executed, the above-mentioned methods in the first aspect or the second aspect are implemented. step.

The tenth aspect is a computer program product of the present application, including computer programs or instructions, wherein, when the computer program or instructions are executed, the steps in the method designed in the first aspect or the second aspect above are realized.

The eleventh aspect is a communication system of the present application, including a terminal device configured to implement the method provided in the first aspect above and a network device configured to implement the method provided in the second aspect above.

For the beneficial effects brought by the technical solutions of the second aspect to the eleventh aspect, please refer to the technical effects brought by the technical solution of the first aspect, which will not be repeated here.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the embodiments of the present application.

FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a carrier aggregation cell according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of another carrier aggregation cell according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another carrier aggregation cell according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a method for monitoring a physical downlink control channel according to an embodiment of the present application;

FIG. 6 is a block diagram of functional units of a physical downlink control channel monitoring device according to an embodiment of the present application;

FIG. 7 is a block diagram of functional units of another physical downlink control channel monitoring device according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed ways

It should be understood that the terms "first", "second" and the like involved in the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, product, or device that includes a series of steps or units is not limited to the listed steps or units, but also includes steps or units that are not listed, or includes , other steps or units inherent in the product or equipment.

The "embodiments" referred to in the embodiments of the present application means that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

"And/or" in the embodiment of this application describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which may indicate the following three situations: A exists alone, and A and B exist simultaneously , B exists alone. Wherein, A and B may be singular or plural. The character "/" can indicate that the contextual objects are an "or" relationship. In addition, the symbol "/" can also represent a division sign, that is, to perform a division operation. The meaning of "/" in this application can be judged according to the description of the context.

"At least one item (items)" or similar expressions in the embodiments of the present application refer to any combination of these items, including any combination of a single item (items) or a plurality of item (items). For example, at least one item (piece) of a, b or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b and c. Wherein, each of a, b, and c may be an element, or a set containing one or more elements.

The embodiments of this application refer to "of", "corresponding, relevant", "corresponding", "indicating "indicated", "associated, related", "mapped", "configured", and "allocated" can sometimes be used interchangeably. It should be noted that in not When emphasizing their differences, the concepts or meanings they want to express are consistent.

In this embodiment of the present application, "monitoring" and "blind detection" may be expressed as the same concept or meaning.

"Network" and "system" in the embodiments of the present application may be expressed as the same concept or meaning, and a communication system is a communication network.

The "connection" in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to realize communication between devices, which is not specifically limited.

The relevant content involved in the technical solutions of the embodiments of the present application will be specifically introduced below.

1. Communication systems, terminal equipment and network equipment

1) Communication system

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced Long Term Evolution, LTE-A) system, New Radio (New Radio, NR) system, evolution system of NR system, LTE (LTE-based Access to Unlicensed Spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based Access to Unlicensed Spectrum, NR-U) on unlicensed spectrum System, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 6th generation communication (6th-Generation, 6G) system or other communication systems, etc.

Traditional communication systems support a limited number of connections and are easy to implement. With the development of communication technology, the communication system can not only support the traditional communication system, but also support such as device to device (device to device, D2D) communication, machine to machine (machine to machine, M2M) communication, machine type communication (machine type communication (MTC), vehicle to vehicle (V2V) communication, vehicle to everything (V2X) communication, narrow band internet of things (NB-IoT) communication, etc. The technical solutions of the embodiments of the present application may also be applied to the above-mentioned communication system or the above-mentioned traditional communication system.

Exemplarily, the embodiments of the present application may be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual connectivity (dual connectivity, DC) or independent (standalone, SA) deployment scenarios and the like.

As another example, the embodiments of the present application may be applied to a communication scenario of an unlicensed spectrum. Wherein, in the embodiment of the present application, the unlicensed spectrum may also be regarded as the shared spectrum. Alternatively, the embodiments of the present application may also be applied to licensed spectrum. Wherein, the licensed spectrum can also be regarded as a non-shared spectrum.

2) Terminal equipment

In the embodiment of the present application, the terminal equipment may be a device with a transceiver function, and may also be called a terminal, user equipment (user equipment, UE), remote terminal equipment (remote UE), relay equipment (relay UE), Access terminal equipment, subscriber unit, subscriber station, mobile station, mobile station, remote station, mobile equipment, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent or user device. It should be noted that a relay device is a terminal device capable of providing relay and forwarding services for other terminal devices (including remote terminal devices).

In this embodiment of the application, terminal devices can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can be deployed on water (such as ships, etc.); can be deployed in the air (such as aircraft, balloons and satellites, etc.).

In the embodiment of the present application, the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device , wireless terminal equipment in industrial control, wireless terminal equipment in unmanned automatic driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety ( Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city (smart city) or wireless terminal equipment in smart home (smart home), etc.

In addition, the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), with Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in next-generation communication systems (such as NR communication systems, 6G communication systems), or public land for future evolution Terminal equipment in a mobile communication network (public land mobile network, PLMN), etc., is not specifically limited.

In the embodiment of the present application, the terminal device may include an apparatus with a wireless communication function, such as a chip system, a chip, or a chip module. Exemplarily, the chip system may include a chip, and may also include other discrete devices.

3) Network equipment

In the embodiment of the present application, the network device is a device having a sending and receiving function, and is used for communicating with a terminal device. For example, the network device may be responsible for radio resource management (radio resource management, RRM), quality of service (quality of service, QoS) management, data compression and encryption, data sending and receiving, etc. Wherein, the network device may be a base station (base station, BS) in a communication system or a device deployed in a radio access network (radio access network, RAN) for providing a wireless communication function. For example, the evolved node B (evolutional node B, eNB or eNodeB) in the LTE communication system, the next generation evolved node B (next generation evolved node B, ng-eNB) in the NR communication system, and the Next generation node B (next generation node B, gNB), master node (MN) in dual connectivity architecture, second node or secondary node (secondary node, SN) in dual connectivity architecture, etc. limit.

In the embodiment of the present application, the network device can also be a device in the core network (core network, CN), such as access and mobility management function (access and mobility management function, AMF), user plane function (user plane function, UPF) etc.; it can also be an access point (access point, AP) in a wireless local area network (wireless local area network, WLAN), a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.

In the embodiment of the present application, the network device may include an apparatus that provides a wireless communication function for the terminal device, such as a chip system, a chip, or a chip module. Exemplarily, the chip system may include a chip, or may include other discrete devices.

In the embodiment of the present application, the network device may communicate with an Internet Protocol (Internet Protocol, IP) network. For example, the Internet (internet), a private IP network or other data networks and the like.

In this embodiment of the present application, the network device may be an independent node to implement the functions of the base station, or the network device may include two or more independent nodes to implement the functions of the base station. For example, a network device includes a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU), such as gNB-CU and gNB-DU. Further, in some other embodiments of the present application, the network device may further include an active antenna unit (active antenna unit, AAU). Among them, the CU implements a part of the functions of the network equipment, and the DU implements another part of the functions of the network equipment. For example, CU is responsible for processing non-real-time protocols and services, implementing radio resource control (radio resource control, RRC) layer, service data adaptation protocol (service data adaptation protocol, SDAP) layer, packet data convergence (packet data convergence protocol, PDCP) layer function. The DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer and physical (physical, PHY) layer. In addition, the AAU can implement some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this network deployment, high-level signaling (such as RRC signaling) can be considered to be sent by the DU, or Sent jointly by DU and AAU. It can be understood that the network device may include at least one of CU, DU, and AAU. In addition, the CU can be divided into network devices in the RAN, or the CU can also be divided into network devices in the core network, which is not specifically limited.

In this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network equipment may be a satellite or a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (high elliptical orbit, HEO) satellite. ) Satellite etc. Optionally, the network device may also be a base station installed on land, water, and other locations.

In the embodiment of the present application, the network device can provide services for a cell, and the terminal devices in the cell can communicate with the network device through transmission resources (such as spectrum resources). Wherein, the cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, and the like.

4) Exemplary description

In combination with the foregoing description, an exemplary description of the communication system in the embodiment of the present application is given below.

Exemplarily, as shown in FIG. 1 , a communication system 10 may include a terminal device 110 and a network device 120 . The network device 120 can provide communication coverage for a specific geographical area, and can communicate with the terminal device 110 located in the coverage area.

It should be noted that FIG. 1 is only an illustration of a network architecture of a communication system, and does not limit the network architecture of the communication system in the embodiment of the present application.

For example, the communication system 10 may also include multiple network devices, and the coverage of each network device may include a certain number of terminal devices, which is not specifically limited.

For another example, the communication system 10 may also include other network entities such as a network controller and a mobility management entity, which is not specifically limited.

For another example, the communication between the network device and the terminal device in the communication system 10 may be wireless communication or wired communication, which is not specifically limited.

2. PDCCH

The payload (payload) carried on the PDCCH is called DCI, that is, the PDCCH carries DCI.

A carrier can have multiple control resource sets (control-resource set, CORESET), CORESET will map resource elements to control channel elements (Control Channel Element, CCE), one or more CCEs are aggregated together to carry PDCCH, and the terminal The device can detect whether the network has a PDCCH sent to itself in the search space (search space) through blind detection.

A CCE is a basic resource unit constituting a PDCCH. One PDCCH can use 1, 2, 4, 8, 16 CCEs. Among them, make The number of CCEs used may be called an aggregation level (aggregation level). That is to say, one PDCCH can be aggregated by several CCEs.

A CCE may include 6 resource element groups (Resource Element Group, REG), and each REG may include one or more resource blocks (Resource Block, RB) on an OFDM symbol.

CORESET is a new concept of time-frequency domain resource set proposed by 5G NR. This is because in 5G NR, the transmission bandwidth of the communication system is relatively large, and the support capabilities of terminal devices are not the same. In order to adapt to different bandwidths and reduce the complexity of PDCCH blind detection, the time-frequency domain resource scheduling of PDCCH is constrained by CORESET.

CORESET can have multiple search spaces, and a search space is a candidate control channel composed of a group of CCEs with the same aggregation level. Since CCE has multiple aggregation levels, one terminal device can correspond to multiple search spaces.

3. Carrier aggregation

(1) Component Carrier (CC), primary cell (Primary Cell, PCell), secondary cell (Secondary Cell, SCell)

In carrier aggregation, multiple carriers can be aggregated together to serve one terminal device at the same time. In this way, the terminal device can obtain a larger service bandwidth and a larger transmission rate through carrier aggregation. Among them, carrier aggregation does not require all carriers to be continuous in the frequency domain, or even limited to the same frequency band.

The carrier aggregation of the NR standard can support the aggregation of up to 16 carriers. These carriers may have different carrier bandwidths or different duplex modes.

In addition, an aggregated carrier may also be called a component carrier.

For example, there are 5 carriers in carrier aggregation, and the 5 carriers are component carrier 0 (CC0), component carrier 1 (CC1), component carrier 2 (CC2), component carrier 3 (CC3), and component carrier 4 (CC4).

For terminal devices, a terminal device that supports carrier aggregation can simultaneously send and receive data on multiple component carriers; a terminal device that does not support carrier aggregation can send and receive data on one component carrier.

In the description of carrier aggregation in NR standard, the concept of cell is often used. In the embodiment of the present application, a carrier (or component carrier) may be called or regarded as a cell. Therefore, an aggregated carrier may also be understood as an aggregated cell. Similarly, a terminal device supporting carrier aggregation can simultaneously send and receive data on multiple carriers (or component carriers), that is, a terminal device supporting carrier aggregation can simultaneously send and receive data in multiple cells.

For example, there are 5 carriers in carrier aggregation, and the 5 carriers are CC0, CC1, CC2, CC3, and CC4 respectively. Wherein, CC0 is cell 0, or CC0 corresponds to cell 0 (cell 0 corresponds to CC0). Similarly, CC1 is cell 1, CC2 is cell 2, CC3 is cell 3, and CC4 is cell 4.

Among these aggregated cells, only one cell is called a primary cell, while the other cells are called secondary cells. Wherein, the primary cell may be a cell used by the terminal device to access the network, and the secondary cell may be configured by the network after the terminal device enters the connected state. The network can quickly activate or deactivate the secondary cell to meet changes in service requirements. Different terminal devices can configure different cells as primary cells.

(2) Self-carrier scheduling (self-carrier scheduling)

Currently, in a carrier aggregation scenario, a cell either only supports self-carrier scheduling or cross-carrier scheduling.

In the embodiment of the present application, the self-carrier scheduling may be expressed as that the scheduling grant of the cell and the transmission data are sent on the same carrier.

For example, if cell 0 supports self-carrier scheduling (or cell 0 is configured as self-carrier scheduling), the terminal device can monitor the PDCCH of cell 0 on CC0 corresponding to cell 0, and obtain related scheduling through the DCI carried by the PDCCH authorized. Finally, the terminal device sends transmission data on CC0 through the scheduling authorization. It can be seen that the scheduling grant and transmission data of cell 0 are sent on CC0.

(3) Cross-carrier scheduling (cross-carrier sheduling)

In this embodiment of the present application, cross-carrier scheduling may be expressed as that the scheduling grant and transmission data of a cell are sent on different carriers.

It should be noted that if one cell schedules another cell with multiple carriers, then the other cell can be said to support cross-carrier scheduling.

For example, if cell 0 can schedule cell 1 across carriers, the terminal device can only monitor the PDCCH on CC0 corresponding to cell 0, and obtain the scheduling authorization of cell 1 through the DCI carried by the PDCCH (in other words, the DCI can only schedule data transmission in the CC1 corresponding to the cell 1), and the terminal device cannot monitor the PDCCH on the CC1 corresponding to the cell 1 to obtain its own scheduling authorization. Finally, the terminal device sends transmission data on CC1 through the scheduling authorization. It can be seen that the scheduling grant of cell 0 is sent on CC0, and the transmission data of cell 1 is sent on CC1. At this point, in this embodiment of the present application, it can be said that cell 1 supports cross-carrier scheduling (or cell 1 is configured to be cross-carrier scheduling).

In this embodiment of the present application, the DCI may include a carrier indicator field (carrier indicator field, CI field). High-level signaling may indicate whether to configure cross-carrier scheduling. For example, the network can configure cross-carrier scheduling of a certain cell through high-level parameters (such as crossCarrierSchedulingConfig in RRCConnectionReconfiguration). When cross-carrier scheduling is configured, it is necessary to pass the The carrier indicator field is used to indicate which component carrier the DCI of the carrier indicator field is for.

4. PDCCH monitoring capability (blind detection capability)

The terminal device monitors a group of PDCCH candidates in one or more CORESETs on each activated serving cell configured with PDCCH monitoring according to the corresponding search space set. Wherein, monitoring (or blind detection) can be understood as receiving each PDCCH candidate and decoding it according to the monitored DCI format.

Due to the constraints of hardware computing resources, time delay and power consumption of the terminal equipment, and the consideration of scheduling flexibility, the monitoring capability of the PDCCH is an important consideration when designing the PDCCH protocol.

1) Time slot (slot), (X, Y) combined interval (span), (X _S , Y _S ) combined multi-slot

If the monitoring capability configuration parameter (monitoringCapabilityConfig) for a serving cell is provided to the terminal device, and monitoringCapabilityConfig=r15monitoringcapability, the terminal device can obtain an indication (indication), and determine the The maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs of the serving cell.

If the monitoringCapabilityConfig for a serving cell is provided to the terminal device, and monitoringCapabilityConfig=r16monitoringcapability, the terminal device can obtain an indication, and use the indication to determine the number of PDCCH candidates for the serving cell within the interval of each (X, Y) combination The maximum number or the maximum number of non-overlapping CCEs.

If the monitoringCapabilityConfig for a serving cell is provided to the terminal device, and monitoringCapabilityConfig=r17monitoringcapability, the terminal device can obtain an indication, and use this indication to determine the number of timeslots for the serving cell in each (X _S , Y _S ) combined multi-slot The maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs.

If the monitoringCapabilityConfig is not provided to the terminal device, the terminal device monitors the PDCCH on the serving cell to obtain the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs in each time slot.

For the SCS configuration corresponding to μ=0 and μ=1, the terminal device may indicate the ability to monitor the PDCCH according to one or more (X, Y) combinations.

A span is a plurality of consecutive symbols in a time slot in which the terminal device is configured to monitor the PDCCH.

Each PDCCH monitoring occasion (monitoring occasion) is within a span.

If the terminal device monitors the PDCCH on the cell according to the combined span of (X,Y), the terminal device supports the PDCCH monitoring opportunity in any symbol of a slot between the first symbols of two consecutive spans The smallest time interval with X symbols.

A span of (X, Y) combination starts from the first symbol at the beginning of the PDCCH monitoring opportunity and ends at the last symbol at the end of the PDCCH monitoring opportunity, wherein the number of symbols in the span is at most Y.

For the SCS configuration of μ=5 and μ=6, the terminal device can indicate the ability to monitor the PDCCH according to one or more (X _S , Y _S ) combinations, where X _S and Y _S are the number of consecutive time slots.

If the terminal device monitors the PDCCH on the cell according to the multi-slot combination of (X _S , Y _S ), the terminal device can monitor the Type1-PDCCH CSS set provided by dedicated high-level signaling in any time slot of the Y _S time slots, The Type3-PDCCH CSS set and the PDCCH of the USS set, and the terminal device can monitor the Type0/0A/2-PDCCH CSS set and the Type1-PDCCH CSS set PDCCH provided by SIB1 in any time slot of X _S slots. The terminal device may determine the maximum number of monitored PDCCH candidates and the maximum number of non-overlapping CCEs according to all search space sets within the (X _S , Y _S ) combined X _S time slots.

In this embodiment of the application, each time slot/every (X, Y) combined span/every (X _S , Y _S ) combined span of a terminal device on an active (active) DL BWP of a serving cell The ability to monitor the PDCCH in multiple slots can be enabled by the terminal device on each slot/every (X, Y) combined span/every (X _S , Y _S ) on the active DL BWP of the serving cell PDCCH to be monitored in the combined multi-slot The maximum number of candidates and the maximum number of non-overlapping CCEs are defined.

2) The maximum number of PDCCH candidates

In the standard protocol stipulated by 3GPP, the terminal equipment defines the maximum number of PDCCH candidates of the serving cell in each time slot. It should be noted that the maximum number of PDCCH candidates, which can also be referred to as the maximum number of PDCCH candidates, is not specifically limited.

Exemplarily, in different subcarrier space (subcarrier space, SCS), for each time slot on a DL BWP with a subcarrier spacing configuration (SCS configuration) μ∈{0,1,2,3} The serving cell, the maximum number of PDCCH candidates As shown in Table 1.

Table 1

Among them, if μ=0, then If μ=1, then The rest can be known in turn.

In the standard protocol stipulated by 3GPP, the terminal equipment defines the maximum number of PDCCH candidates of the serving cell within the interval of each (X, Y) combination.

Exemplarily, when the subcarrier spacing is different, for a serving cell in the interval of each (X, Y) combination on a DL BWP with a subcarrier spacing configuration μ∈{0,1}, the maximum number of PDCCH candidates Number As shown in table 2.

Table 2

Among them, if μ=0, and (X,Y)=(2,2), then If μ=0, and (X,Y)=(4,3), then If μ=0, and (X,Y)=(7,3), then The rest can be known in turn.

In the standard protocol stipulated by 3GPP, the terminal equipment defines the maximum number of PDCCH candidates of the serving cell in each (X _S , Y _S ) combined multi-slot.

Exemplarily, when subcarrier spacing is different, for a serving cell in a multi-slot combination of (X _S , Y _S ) on a DL BWP with a subcarrier spacing configuration μ∈{5,6}, the PDCCH candidate maximum number as shown in Table 3.

table 3

Among them, if μ=5, and (X _S , Y _S )=(4,1), then If μ=5, and (X _S , Y _S )=(4,2), then If μ=6, and (X _S , Y _S )=(4,1), then The rest can be known in turn.

3) Maximum number of non-overlapping CCEs

It should be noted that the maximum number of non-overlapping CCEs can also be referred to as the maximum number of non-overlapping CCEs, which is not specifically limited.

If one or more CCEs of PDCCH candidates correspond to different CORESET indexes, these CCEs are non-overlapping, that is, non-overlapping CCEs.

If one or more CCEs of the PDCCH candidates correspond to different start symbols for receiving each PDCCH candidate, then these CCEs are non-overlapping, that is, non-overlapping CCEs.

Exemplarily, when the subcarrier spacing is different, for a serving cell in each time slot on a DL BWP with a subcarrier spacing configuration μ∈{0,1,2,3}, the maximum number of non-overlapping CCEs number As shown in Table 4.

Table 4

Among them, if μ=0, then If μ=1, then The rest can be known in turn.

In the standard protocol stipulated by 3GPP, the terminal equipment defines the maximum number of non-overlapping CCEs of the serving cell within the interval of each (X, Y) combination.

Exemplarily, when the subcarrier spacing is different, for a serving cell within the interval of each (X, Y) combination on a DL BWP with a subcarrier spacing configuration μ∈{0,1}, the non-overlapping CCE maximum number As shown in Table 5.

table 5

In the standard protocol stipulated by 3GPP, the terminal equipment defines the maximum number of non-overlapping CCEs of the serving cell in each (X _S , Y _S ) combined multi-slot.

Exemplarily, when subcarrier spacing is different, for a serving cell in a multi-slot combination of (X _S , Y _S ) on a DL BWP with a subcarrier spacing configuration μ∈{5,6}, non-overlapping CCE the maximum number of As shown in Table 6.

Table 6

4) Limitation on the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs

If the terminal device does not report the PDCCH blind detection carrier aggregation (pdcch-BlindDetectionCA) parameter, or does not provide the blind detection factor R (BDFactorR) parameter, then γ=R. Wherein, R represents the PDCCH monitoring capability reported by the terminal device. R can be 1 or 2.

If the terminal device reports the pdcch-BlindDetectionCA, the terminal device may indicate γ=1 or γ=R by BDFactorR.

① Situation 1

If the terminal device is configured with downlink cells, and use the SCS configuration μ to monitor the relevant PDCCH candidates in the active DL BWP of the serving cell, where Then the terminal device does not need to be on the active DL BWP of the serving cell:

◆When the serving cell comes from (belongs to, etc.) When there are downlink cells, monitor more than PDCCH candidates or more than non-overlapping CCEs;

◆When the serving cell comes from (belongs to, etc.) When there are downlink cells, in each time slot of CORESET with the same coreset pool index (coresetPoolIndex) value, monitor more than PDCCH candidates or more than non-overlapping CCEs.

It should be noted that, in combination with the above formula, in the embodiment of the present application, the number of PDCCH candidates that the terminal device does not need to monitor exceeds is referred to as "limitation on the maximum number of PDCCH candidates". Similarly, in the embodiment of the present application, the number of non-overlapping CCEs that the terminal device does not need to monitor exceeds is called "limitation on the maximum number of non-overlapping CCEs".

It may be the PDCCH monitoring capability reported by the terminal device, that is, how many carrier PDCCH candidates or non-overlapping CCE monitoring capabilities the terminal device supports at most.

A cell in the downlink cells may be a cell supporting a single transmission reception point (transmission reception point, TRP), and a single TRP may be a single CORESET pool index. That is to say, It can be the number of cells that use SCS to configure μ and support single TRP.

The cells in the downlink cells may be cells supporting multiple TRPs, and have a higher blind detection capability, that is, γ times. Among them, a single TRP can be multiple CORESET pool indexes. That is to say, It can be the number of cells that use the SCS to configure μ and support multiple TRPs.

Additionally, if the end device is from (belongs to, etc.) downlink cells, the terminal device is either not configured with coresetPoolIndex, or configured with coresetPoolIndex. Among them, the coresetPoolIndex is from A single value provided by all CORESETs on all DL BWPs of each serving cell in downlink cells, that is, a single CORESET pool index.

If the end device is from (belongs to, etc.) downlink cells, the terminal device is either not configured with coresetPoolIndex, or configured with coresetPoolIndex. Among them, the coresetPoolIndex is from Multiple values provided by all CORESETs on all DL BWPs of each serving cell in the downlink cells, that is, multiple CORESET pool indexes. For example, if the value of the coresetPoolIndex is 0, it can be used for the first CORESET; if the value of the coresetPoolIndex is 1, it can be used for the second CORESET.

② Situation 2

If the terminal device is configured with downlink cells, and use the SCS configuration μ to monitor the relevant PDCCH candidates in the active DL BWP of the serving cell, where then the terminal device does not need (that is, will not require) the Each time slot on the active DL BWP of the serving cell of the downlink cell monitors more than PDCCH candidates or more than non-overlapping CCEs. In other words, the end device is in the Each time slot on the active DL BWP of the serving cell of a downlink cell does not monitor more than PDCCH candidates or no more than non-overlapping CCE

◆When the serving cell comes from (belongs to, etc.) When there are downlink cells, the terminal device does not need to monitor more than PDCCH candidates or more than non-overlapping CCEs.

◆When the serving cell comes from (belongs to, etc.) For downlink cells, for CORESET with the same coresetPoolIndex value, the terminal device does not need to monitor more than PDCCH candidates or more than non-overlapping CCEs.

It should be noted, or It may be the number of cells with associated PDCCH candidates monitored on the active DL BWP of the serving cell using all SCS configurations.

It may be the number of cells with associated PDCCH candidates monitored on the active DL BWP of the serving cell using a certain SCS configuration.

The following embodiments of the present application illustrate the "case two".

For example, if the following conditions exist:

The PDCCH monitoring capability reported by the terminal device is 4 That is, it supports the monitoring capability of PDCCH carriers with a maximum of 4 carriers and non-overlapping CCEs;

The terminal device is configured with 5 cells, none of the 5 cells is configured with multiple CORESET pool indexes, and the 5 cells are all from downlink cells, namely

In the five cells, PDCCH can be sent on Pcell and cell 1;

The SCS of Pcell is 15kHz, that is, μ=0, and Pcell can support self-carrier scheduling, and Pcell can schedule Scell 2 and Scell4 across carriers, that is, Scell 2 and Scell4 support cross-carrier scheduling; at this time, Pcell can be called a scheduling cell (scheduling cell), Scell 2 and Scell4 may be referred to as a scheduled cell (scheduled cell); wherein,

The SCS of Scell 1 is 30kHz, that is, μ=1, and Scell 1 can support self-carrier scheduling, and Scell 1 can schedule Scell 3 across carriers, that is, Scell 3 supports cross-carrier scheduling; where,

because In the formula in "Case 2", the limit on the number of PDCCH candidates or the number of non-overlapping CCEs in each time slot is calculated according to the SCS of the scheduling cell, so it exists as follows:

For Scell 2 and Scell4, since the SCS of Pcell is 15kHz, that is, μ=0, the terminal equipment does not need to have The active DL BWP with SCS configuration μ = 0 listens for more than PDCCH candidates; wherein, according to the above table 1,

For Scell 2 and Scell4, since the SCS of Pcell is 15kHz, i.e. μ=0, the terminal device does not need to monitor more than non-overlapping CCE; where, according to the above Table 4,

For Scell 3, since the SCS of Scell 1 is 30kHz, i.e. μ=1, the terminal device does not need to monitor more than PDCCH candidates; wherein, according to the above table 1,

For Scell 3, since the SCS of Scell 1 is 30kHz, i.e. μ=1, the terminal device does not need to monitor more than non-overlapping CCE; where, according to the above Table 4,

③ Situation 3

If the terminal device is configured with downlink cells, and use the SCS configuration μ to monitor the relevant PDCCH candidates in the active DL BWP of the serving cell, and in downlink cells A downlink cell uses a combined span of (X, Y) for PDCCH monitoring, where but

It should be noted, It may be the PDCCH monitoring capability reported by the terminal device, that is, how many carrier PDCCH candidates or non-overlapping CCE monitoring capabilities the terminal device supports at most.

It may be, using the SCS to configure the number of cells with associated PDCCH candidates monitored on the active DL BWP of the serving cell.

It may be, the number of cells with associated PDCCH candidates monitored within the span of the (X, Y) combination on the activated DL BWP of the serving cell of μ using the SCS configuration.

④ Situation 4

If the terminal device is configured with downlink cells, and use the SCS configuration μ to monitor the relevant PDCCH candidates in the active DL BWP of the serving cell, and in downlink cells A downlink cell uses a combined span of (X, Y) for PDCCH monitoring, where then the end device does not need to be in the Each span on the active DL BWP of the serving cell of the downlink cell monitors more than PDCCH candidates or more than non-overlapping CCEs.

◆When the serving cell comes from (belongs to, etc.) When there are two downlink cells, the terminal device does not need to have SCS in the serving cell Configure μ's active DL BWP to listen within each span for more than PDCCH candidates or more than non-overlapping CCEs.

⑤ Situation 5

Combining the above situation, it can be seen _that the terminal device does not need to _monitor more than PDCCH candidates or more than non-overlapping CCEs.

Alternatively, _the terminal device does not need _to listen for more than PDCCH candidates or more than non-overlapping CCEs.

in,

5. A PDCCH monitoring method

Based on the above, it can be seen that in the carrier aggregation scenario, a cell either only supports self-carrier scheduling, or only supports cross-carrier scheduling. Regardless of self-carrier scheduling or cross-carrier scheduling, the terminal device needs to monitor (or blindly detect) the PDCCH according to the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs to obtain DCI.

At present, the DCI carried by the PDCCH sent on a cell can only schedule data transmission in one carrier (or CC), which will lead to the carrier aggregation scenario, especially when the number of aggregated cells is large and the traffic volume is large. , the terminal device needs to spend a lot of power consumption to monitor (or blindly detect) the PDCCH of each cell.

For example, when there are 16 cells aggregated and the downlink traffic volume is large, if downlink data needs to be scheduled on the 16 cells, and one DCI can only schedule data transmission in one cell, the terminal device needs to monitor each The PDCCH of the cell needs to monitor 16 PDCCHs in total (one PDCCH carries one DCI), which causes the terminal device to consume a lot of power consumption in monitoring the PDCCH.

In order to reduce the monitoring complexity of PDCCH to save power consumption, the embodiment of this application introduces a DCI that can schedule data transmission in multiple carriers (or multiple CCs), that is, multi-carrier scheduling, so as to reduce the monitoring of PDCCH through multi-carrier scheduling complexity to save power.

For example, when there are 16 cells aggregated and the downlink traffic volume is large, if downlink data needs to be scheduled on the 16 cells, and a DCI can schedule data transmission in the 16 cells, the terminal device only needs to monitor 1 PDCCH (one PDCCH bears one DCI). Compared with one DCI that can schedule data transmission in one cell, one DCI can schedule data transmission in 16 cells, which can reduce the complexity of PDCCH monitoring, thereby reducing the power consumption of terminal equipment in monitoring PDCCH. That is, the monitoring complexity of the PDCCH is reduced to save power consumption.

During specific implementation, when there are scheduled cells that support multi-carrier scheduling among M cells (M is an integer greater than 1), the embodiment of the present application can determine the terminal device Limit the maximum number of PDCCH candidates and/or limit the maximum number of non-overlapping CCEs for the scheduled cell in the M cells in a time unit, so that the terminal device can limit and/or non-overlap according to the maximum number of PDCCH candidates The maximum number of CCEs limits the monitoring of the PDCCH, so as to help reduce the complexity of the terminal equipment monitoring the PDCCH to save the possibility of power consumption.

In addition, since the embodiment of the present application introduces multi-carrier scheduling, a scheduled cell may only support multi-carrier scheduling, may support multi-carrier scheduling and self-carrier scheduling at the same time, may support multi-carrier scheduling and cross-carrier scheduling at the same time, so when supporting When multi-carrier scheduling, The limit on the maximum number of PDCCH candidates and/or the limit on the maximum number of non-overlapping CCEs in this embodiment of the present application needs to be determined according to the number of scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduling cell (or division). The scheduling types supported by the scheduled cell include: the scheduled cell only supports multi-carrier scheduling, and the scheduled cell supports both multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling.

In order to realize the above-mentioned technical solution, other contents, concepts and meanings that may be involved will be further explained below.

(1) Multi-carrier scheduling

In the embodiment of the present application, the multi-carrier scheduling can be expressed as that the DCI carried by the PDCCH sent on one cell can schedule data transmission in multiple carriers (multiple CCs or multiple cells). However, in cross-carrier scheduling and self-carrier scheduling, the DCI carried by the PDCCH sent on one cell can only schedule data transmission in one carrier (or CC).

That is to say, multi-carrier scheduling is for one DCI to schedule data transmission in multiple carriers (or CCs), while cross-carrier scheduling and self-carrier scheduling are for one DCI to schedule data transmission in one carrier (or CC) Condition.

It should be noted that if one cell schedules other cells with multiple carriers, then the other cells can be said to support multi-carrier scheduling.

For example, cell 0 (CC0) can schedule multiple carriers for cell 1 (CC1) and cell 2 (CC2), then cell 1 (CC1) and cell 2 (CC2) can support multi-carrier scheduling.

In addition, combined with the content in "3. Carrier Aggregation" above, in the example of this application, a cell can support multi-carrier scheduling, can support multi-carrier scheduling and self-carrier scheduling, and can support multi-carrier scheduling and cross-carrier scheduling at the same time.

Similarly, one carrier (or one CC) can support multi-carrier scheduling, can support multi-carrier scheduling and self-carrier scheduling, and can support multi-carrier scheduling and cross-carrier scheduling at the same time.

(2) M cells, scheduling cells and scheduled cells

Combining the content in "3. Carrier Aggregation" above, in the embodiment of the present application, one carrier (or one CC) can be called or regarded as a cell, and a terminal device supporting carrier aggregation can send and receive data in multiple cells at the same time.

Based on this, in the embodiment of the present application, the M cells may be cells under carrier aggregation. That is to say, the terminal device may have M cells or M carriers in carrier aggregation. Wherein, each of the M cells corresponds to a carrier (or a CC).

Since the embodiment of the present application introduces multi-carrier scheduling, cells supporting multi-carrier scheduling exist among the M cells. That is to say, among the M cells, some cells support multi-carrier scheduling by other cells.

In addition, among the M cells, if one cell can schedule another cell with multiple carriers, the one cell can be called or regarded as a "scheduling cell", and the other cell can be called or regarded as a "scheduled cell" . That is to say, the scheduled cell supports multi-carrier scheduling.

For example, cell 0 (CC0) multi-carrier schedules cell 1 (CC1), then cell 0 (CC0) is the scheduling cell, and cell 1 (CC1) is the scheduled cell.

It should be noted that the scheduling cell may also be referred to as a multi-carrier scheduling scheduling cell, a multi-carrier scheduling cell, etc., and there is no specific limitation on this.

The scheduled cell may also be referred to as a scheduled cell for multi-carrier scheduling, a cell for multi-carrier scheduling, etc., which is not specifically limited.

(3) The scheduled cell is scheduled by N (N is an integer greater than or equal to 1) scheduling cells

In the embodiment of the present application, a scheduled cell may be scheduled by one scheduling cell (that is, N is equal to 1), or may be scheduled by multiple scheduling cells (that is, N is greater than 1).

For example, if cell 0 (CC0) multi-carrier schedules cell 1 (CC1) and cell 2 (CC2), and cell 3 (CC3) multi-carrier Cell 1 (CC1), then Cell 1 (CC1) can be scheduled by Cell 0 (CC0) and Cell 3 (CC3), while Cell 2 (CC2) is only scheduled by Cell 0 (CC0).

(4) The scheduled cell supports self-carrier scheduling or cross-carrier scheduling

In the embodiment of this application, a scheduled cell can only support multi-carrier scheduling, can support multi-carrier scheduling and self-carrier scheduling (supports both multi-carrier scheduling and self-carrier scheduling), and can support multi-carrier scheduling and self-carrier scheduling Cross-carrier scheduling (supports both multi-carrier scheduling and cross-carrier scheduling).

For example, as shown in FIG. 2 , the cells of carrier aggregation include cell 0 (CC0) to cell 4 (CC4). Wherein, one DCI on cell 0 (CC0) can schedule multi-carrier cell 1 (CC1), cell 2 (CC2), cell 3 (CC3) and cell 4 (CC4). Therefore, cell 1 (CC1)-cell 4 (CC4) can only be scheduled by cell 0 (CC0), and cell 1 (CC1)-cell 4 (CC4) only support multi-carrier scheduling.

For another example, as shown in FIG. 3 , the cells of carrier aggregation include cell 0 (CC0) to cell 4 (CC4). Wherein, one DCI on cell 0 (CC0) can schedule multi-carrier cell 1 (CC1), cell 2 (CC2), cell 3 (CC3) and cell 4 (CC4). Cell 1 (CC1) can be self-carrier-scheduled, and cell 2 (CC2) can be cross-carrier-scheduled by Cell 1 (CC1). Therefore, cell 1 (CC1) supports both multi-carrier scheduling and self-carrier scheduling, and cell 1 (CC1) does not support cross-carrier scheduling; cell 2 (CC2) supports both multi-carrier scheduling and cross-carrier scheduling, and cell 2 (CC2) Cross-carrier scheduling is not supported; cell 3 (CC3) and cell 4 (CC4) only support multi-carrier scheduling.

For another example, as shown in FIG. 4 , the cells of carrier aggregation include cell 0 (CC0) to cell 4 (CC4). Among them, one DCI on cell 0 (CC0) can multi-carrier schedule cell 1 (CC1), cell 2 (CC2), cell 3 (CC3) and cell 4 (CC4), and one DCI on cell 5 (CC5) can multi-carrier Cell 1 (CC1), cell 2 (CC2) and cell 3 (CC3) are scheduled. Cell 1 (CC1) can be self-carrier-scheduled, and cell 2 (CC2) can be cross-carrier-scheduled by Cell 1 (CC1). Therefore, cell 1 (CC1) supports both multi-carrier scheduling and self-carrier scheduling, cell 2 (CC2) supports both multi-carrier scheduling and cross-carrier scheduling, and cell 3 (CC3) and cell 4 (CC4) only support multi-carrier scheduling.

(5) First information

In order to realize the limit of the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs of the terminal equipment for the scheduled cell in the M cells within a time unit through network configuration, the embodiment of this application introduces the first information, so that the network device can determine the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs of the terminal device for the scheduled cell in the M cells within the time unit through the first information.

In addition, other terms may also be used to describe the first information, such as configuration information or indication information, etc., as long as they have the same meaning/function/interpretation/concept, etc., they are all within the scope of protection claimed in the embodiments of this application.

In some possible implementations, the first information may be sent or acquired during cell search, cell reselection, uplink and downlink synchronization, cell access, cell camping, initial access, or uplink and downlink resource scheduling.

In some possible implementations, the first information may be carried by system information (SI), high-level signaling (such as RRC signaling), terminal equipment-specific signaling, and the like.

In some possible implementations, the first information may include at least one of the following: the subcarrier spacing of the scheduling cell, the subcarrier spacing of the scheduled cell, the PDCCH monitoring capability reported by the terminal device, the number of cells M, and the self-carrier scheduling factor Or cross-carrier scheduling factor, multi-carrier scheduling factor.

It should be noted that the subcarrier spacing of the scheduling cell, the subcarrier spacing of the scheduled cell, the PDCCH monitoring capability reported by the terminal equipment, the number of cells M, the self-carrier scheduling factor or cross-carrier scheduling factor, and the multi-carrier scheduling factor will be respectively Explained below.

(6) Time unit

In this embodiment of the present application, a time unit may be understood as a communication granularity in the time domain. For example, a terminal device and a network device communicate with a granularity/unit of a time unit in the time domain.

In some possible implementations, the time unit may be one of a time slot, an interval (span) of (X, Y) combination, or a multi-slot of (X _S , Y _S ) combination.

(7) Support the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs under multi-carrier scheduling

It should be noted that, in the above "4) Limitation on the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs", the embodiment of the present application only supports PDCCH candidates under self-carrier scheduling or cross-carrier scheduling for the cell. The maximum number limit and the maximum number limit of non-overlapping CCEs. However, the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs under the condition that the cell supports multi-carrier scheduling still need further research.

Since the embodiment of this application needs to limit the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs according to the number of scheduling cells scheduled by the scheduled cell (such as N) and the scheduling type supported by the scheduling cell The determination (or division) is performed, and the value of N and the scheduling type supported by the scheduled cell are different. Therefore, the following embodiments of the present application will be described in different situations.

Scenario 1:

Among the M cells, one scheduling cell schedules multiple scheduled cells, and the scheduled cell only supports multi-carrier scheduling.

That is, one scheduled cell is scheduled by one (that is, N=1) scheduling cell, and the scheduled cell only supports multi-carrier scheduling.

Therefore, in "case 1", the embodiment of the present application may not determine (or divide) the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs for the terminal device within a time unit , and the methods in the above "case 1", "case 2", "case 3", "case 4" and "case 5" can be adopted. Wherein, the time unit is the time slot on the activated DL BWP of the scheduling cell/the span of the (X,Y) combination/the multi-slot of the (X _S , Y _S ) combination, and the SCS configuration μ is the subcarrier interval corresponding to the scheduling cell.

For example, in FIG. 2, cell 1 (CC1) is multi-carrier scheduled by cell 0 (CC0), and cell 1 (CC1) only supports multi-carrier scheduling. Therefore, the embodiment of the present application can configure the PDCCH candidates in the multi-slot of the time slot/(X,Y) combination span/(X _S ,Y _S ) combination of the terminal device on the active DL BWP of cell 1 (CC1) The maximum number and/or the maximum number of non-overlapping CCEs.

Scenario 2:

There are multiple scheduling cells scheduling multiple scheduled cells among the M cells, and the multiple scheduled cells only support multi-carrier scheduling.

That is to say, a scheduled cell is scheduled by N (1<N<M) scheduling cells, and the scheduled cell only supports multi-carrier scheduling.

Therefore, in "Case 2", the embodiment of the present application can determine (or divide) the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs of the terminal device within a time unit for the scheduled cell . Wherein, the time unit is the time slot on the activated DL BWP of the scheduling cell/the span of the (X,Y) combination/the multi-slot of the (X _S , Y _S ) combination, and the SCS configuration μ is the subcarrier interval corresponding to the scheduling cell.

In "case 2", the embodiment of the present application can configure N (1<N<M) multi-carrier scheduling factors through high-level signaling, that is, b ⁱ , i={1,2,...,N}, And determine the maximum number of PDCCH candidates by the N multi-carrier scheduling factors (or Divide) into N parts that support multi-carrier scheduling, and each part needs to be multiplied by a corresponding multi-carrier scheduling factor.

Similarly, in "Case 2", the embodiment of the present application can configure N multi-carrier scheduling factors through high-layer signaling, that is, b ⁱ , i={1,2,...,N}, And the maximum number limit of non-overlapping CCEs is determined (or divided) into N parts through the N multi-carrier scheduling factors, and each part needs to be multiplied by a corresponding multi-carrier scheduling factor.

In addition, a multi-carrier scheduling factor can be understood as a weighting factor, the purpose of which is to determine (or divide) the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs into parts that support multi-carrier scheduling. Wherein, the multi-carrier scheduling factor may also be described in other terms, which is not specifically limited.

For example, in FIG. 4, cell 3 (CC3) is multi-carrier scheduled by cell 0 (CC0) and cell 5 (CC5), and cell 3 (CC3) only supports multi-carrier scheduling. Therefore, in this embodiment of the present application, two multi-carrier scheduling factors can be configured for cell 3 through high-level signaling, that is, the multi-carrier scheduling factor of CC0 and the multi-carrier scheduling factor of CC5, and the two multi-carrier scheduling factors will be used for cell 3 The maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs is determined (or divided) into two parts that support multi-carrier scheduling.

Case 3:

One scheduling cell among the M cells schedules multiple scheduled cells, and all or part of the scheduled cells among the multiple scheduled cells support multi-carrier scheduling, self-carrier scheduling or cross-carrier scheduling.

That is to say, one scheduled cell is scheduled by one (that is, N=1) scheduling cell, and the scheduled cell not only supports multi-carrier scheduling, but also supports self-carrier scheduling or cross-carrier scheduling.

Therefore, in "Case 3", the embodiment of the present application may determine (or divide) the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs of the terminal device for the scheduled cell within a time unit.

●If the scheduled cell supports multi-carrier scheduling and self-carrier scheduling, the time unit is divided into:

Slot/(X,Y) combined span/(X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduling cell; and,

The time slot on the activated DL BWP of the scheduled cell/span of (X, Y) combination/multiple time slots of (X _S , Y _S ) combination.

●If the scheduled cell supports multi-carrier scheduling and self-carrier scheduling, the SCS configuration μ is divided into:

The subcarrier spacing corresponding to the scheduling cell, i.e. μ _MS ; and,

The subcarrier spacing corresponding to the scheduled cell, that is μ _MSd .

For example, if cell 0 multi-carrier schedules cell 1 and cell 2, and cell 1 supports subcarrier scheduling, μ _MS is the subcarrier spacing of cell 0, and μ _MSd is the subcarrier spacing of cell 1.

●If the scheduled cell supports multi-carrier scheduling and cross-carrier scheduling, the time unit is divided into:

Cross-carrier scheduling of the activated DL BWP of the cell of the scheduled cell/span of (X, Y) combination/multiple time slots of (X _S , Y _S ) combination.

For example, if Cell 0 schedules Cell 1 and Cell 2 on multiple carriers, and Cell 1 schedules Cell 2 across carriers, then Cell 1 is the cell that schedules Cell 2 across carriers.

●If the scheduled cell supports multi-carrier scheduling and cross-carrier scheduling, the SCS configuration μ is divided into:

The subcarrier spacing corresponding to the scheduling cell, i.e. μ _MS ; and,

The subcarrier spacing corresponding to the cell of the scheduled cell is cross-carrier scheduled, that is, μ _MSd .

For example, if Cell 0 schedules Cell 1 and Cell 2 with multiple carriers, and Cell 1 schedules Cell 2 across carriers, then Cell 1 is cross-carrier scheduling For the cell of cell 2, μ _MS is the subcarrier spacing of cell 0, and μ _MSd is the subcarrier spacing of cell 1.

In "Case 3", the embodiment of the present application can configure a self-carrier scheduling factor (or a cross-carrier scheduling factor), namely a, and a multi-carrier scheduling factor, namely b, through high-level signaling, and a+b≤1 .

Then, determine (or divide) the maximum number of PDCCH candidates into two parts through a and b, that is, a part that supports self-carrier scheduling (or cross-carrier scheduling) needs to be multiplied by a, and another part that supports multi-carrier scheduling Part needs to be multiplied by b.

That is to say, if the scheduled cell supports both multi-carrier scheduling and self-carrier scheduling, a self-carrier scheduling factor and a multi-carrier scheduling factor are configured through high-layer signaling. If the scheduled cell supports both multi-carrier scheduling and cross-carrier scheduling, a cross-carrier scheduling factor and a multi-carrier scheduling factor are configured through high-layer signaling.

It should be noted that a self-carrier scheduling factor can be understood as a weighting factor, the purpose of which is to determine (or divide) the maximum number limit of PDCCH candidates or the maximum number limit of non-overlapping CCEs into parts that support self-carrier scheduling . Wherein, the self-carrier scheduling factor may also be described in other terms, which is not specifically limited.

A cross-carrier scheduling factor can be understood as a weighting factor for determining (or dividing) the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs into parts that support cross-carrier scheduling. Wherein, the cross-carrier scheduling factor may also be described in other terms, which is not specifically limited.

For example, in FIG. 3 , cell 1 (CC1) is multi-carrier scheduled by cell 0 (CC0), and cell 1 (CC1) supports both multi-carrier scheduling and self-carrier scheduling. Therefore, in this embodiment of the present application, one multi-carrier scheduling factor and one self-carrier scheduling factor can be configured for cell 1 (CC1) through high-layer signaling, and the maximum number of PDCCH candidates for cell 1 (CC1) can be limited accordingly. Or the maximum number of non-overlapping CCEs is determined (or divided) into a part supporting multi-carrier scheduling and a part supporting self-carrier scheduling.

For another example, in FIG. 3 , cell 2 (CC1) is multi-carrier scheduled by cell 0 (CC0), and cell 2 (CC2) supports both multi-carrier scheduling and cross-carrier scheduling. Therefore, in this embodiment of the present application, one multi-carrier scheduling factor and one cross-carrier scheduling factor can be configured for cell 2 (CC2) through high-layer signaling, and the maximum number of PDCCH candidates for cell 2 (CC2) can be limited accordingly. Or the maximum number of non-overlapping CCEs is determined (or divided) into a part supporting multi-carrier scheduling and a part supporting cross-carrier scheduling.

Scenario 4:

There are multiple scheduling cells in the M cells to schedule multiple scheduled cells, and all or part of the scheduled cells among the multiple scheduled cells support multi-carrier scheduling, self-carrier scheduling or cross-carrier scheduling.

That is to say, a scheduled cell is scheduled by N (1<N<M) scheduling cells, and the scheduled cell not only supports multi-carrier scheduling, but also supports self-carrier scheduling or cross-carrier scheduling.

Therefore, in "Case 4", the embodiment of the present application may determine (or divide) the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs of the terminal device for the scheduled cell within a time unit.

The subcarrier spacing corresponding to the scheduling cell, i.e. μ _MS ; and,

The subcarrier spacing corresponding to the scheduled cell, that is μ _MSd .

The subcarrier spacing corresponding to the scheduling cell, i.e. μ _MS ; and,

In "Case 4", the embodiment of the present application can configure a self-carrier scheduling factor (or a cross-carrier scheduling factor), namely a, and N (1<N<M) multi-carrier scheduling factors through high-level signaling, namely b ⁱ , i={1,2,...,N}, and

Then, limiting the maximum number of PDCCH candidates through a and b ⁱ needs to be determined (or divided) into N+1 parts, one of which is multiplied by a, and the others are multiplied by b ⁱ .

For example, in Figure 4, cell 1 (CC1) is multi-carrier scheduled by cell 0 (CC0) and cell 5 (CC5), and cell 1 (CC1) supports both multi-carrier scheduling and self-carrier scheduling. Therefore, in this embodiment of the present application, cell 1 (CC1) can be configured with two multi-carrier scheduling factors through high-layer signaling, that is, multi-carrier scheduling of cell 0 (CC0) and multi-carrier scheduling of cell 5 (CC5), and one self- Carrier scheduling factor, and determine (or divide) the maximum number of PDCCH candidates for cell 1 (CC1) or the maximum number of non-overlapping CCEs into a part that supports multi-carrier scheduling and a part that supports self-carrier scheduling .

For another example, in FIG. 4 , cell 2 (CC2) is multi-carrier scheduled by cell 0 (CC0) and cell 5 (CC5), and cell 2 (CC2) supports both multi-carrier scheduling and cross-carrier scheduling. Therefore, in this embodiment of the present application, two multi-carrier scheduling factors can be configured for cell 2 (CC2) through high-level signaling, that is, multi-carrier scheduling for cell 0 (CC0) and multi-carrier scheduling for cell 5 (CC5), and one cross- Carrier scheduling factor, and based on this, determine (or divide) the maximum number of PDCCH candidates for cell 2 (CC2) or the maximum number of non-overlapping CCEs into a part that supports multi-carrier scheduling and a part that supports cross-carrier scheduling .

(8) Exemplary description of "case 1"

In "Case 1", the embodiment of the present application may not determine (or divide) the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs for the terminal device within a time unit for the scheduled cell, and The methods in the above "case 1", "case 2", "case 3", "case 4" and "case 5" can be adopted.

①The maximum number of PDCCH candidates is limited

Combining the methods in "Case 1", "Case 2", "Case 3", "Case 4" and "Case 5" above, it can be seen that if the scheduled cell is scheduled by a scheduling cell, and the scheduled cell only supports multi-carrier scheduling, the maximum number of PDCCH candidates may include a maximum number of PDCCH candidates of the first type.

It should be noted that the limit on the maximum number of PDCCH candidates of the first type corresponds to multi-carrier scheduling. That is to say, the limit on the maximum number of PDCCH candidates of the first type may be the limit on the maximum number of PDCCH candidates supporting multi-carrier scheduling.

In some possible implementations, the maximum number of PDCCH candidates of the first type can be limited by and OK, can be determined by and OK, can be determined by and Sure.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of first PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

In this regard, the maximum number of first PDCCH candidates can be the maximum number of PDCCH candidates monitored in the corresponding time unit of the sub-carrier spacing of the scheduling cell, that is, the sub-carrier spacing of the scheduling cell is μ, and the time unit is time slot/( X, Y) combined span/(X _S , Y _S ) combined multi-time Gap.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of second PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

because Therefore, the maximum number of second PDCCH candidates can be determined by the PDCCH monitoring capability reported by the terminal device, the maximum number of first PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduling cell, and the spacing of all subcarriers in M cells The number of corresponding cells is determined.

Among them, the PDCCH monitoring capability reported by the terminal equipment is or The number of cells corresponding to the subcarrier spacing of the scheduling cell is The number of cells corresponding to all subcarrier spacings in M cells is or

For example, taking the above "scenario 2" as an example, this embodiment of the present application can configure the terminal device to limit the maximum number of PDCCH candidates of the scheduled cell in each time slot on the active DL BWP of the scheduling cell to, That is, the terminal device does not need to monitor more than PDCCH candidates.

For another example, taking the above "case 4" as an example, this embodiment of the present application may configure the terminal device to limit the maximum number of PDCCH candidates for the scheduled cell in each span on the active DL BWP of the scheduling cell to, That is, the terminal device does not need to monitor more than PDCCH candidates.

For another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure the PDCCH candidates of the terminal device for the scheduled cell in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduling cell The maximum number of is limited to, That is, the terminal device does not need _to listen to more _than PDCCH candidates.

②The maximum number limit of non-overlapping CCE

Combining the methods in "Case 1", "Case 2", "Case 3", "Case 4" and "Case 5" above, it can be seen that if the scheduled cell is scheduled by a scheduling cell, and the scheduled cell only supports multi-carrier scheduling, the maximum number limit of non-overlapping CCEs may include a maximum number limit of the first type of non-overlapping CCEs.

It should be noted that the limit on the maximum number of non-overlapping CCEs of the first type corresponds to multi-carrier scheduling. That is to say, the limit on the maximum number of non-overlapping CCEs of the first type may be the limit on the maximum number of non-overlapping CCEs supporting multi-carrier scheduling.

In some possible implementations, the maximum number of non-overlapping CCEs of the first type can be limited by and OK, can be determined by and OK, can be determined by and Sure.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of first non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

In this regard, the maximum number of first non-overlapping CCEs can be the maximum number of non-overlapping CCEs monitored in the time unit corresponding to the subcarrier spacing of the scheduling cell, that is, the subcarrier spacing of the scheduling cell is μ, and the time unit is a time slot /(X,Y) combined span/(X _S , Y _S ) combined multi-slot.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of second non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

because Therefore, the maximum number of second non-overlapping CCEs can be determined by the PDCCH monitoring capability reported by the terminal device, the maximum number of first non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduling cell, and all subcarriers in M cells. The number of cells corresponding to the carrier spacing is determined.

Among them, the PDCCH monitoring capability reported by the terminal equipment is or The number of cells corresponding to the subcarrier spacing of the scheduling cell is or The number of cells corresponding to all subcarrier spacings in M cells is or

For example, taking the above "scenario 2" as an example, this embodiment of the present application can configure the terminal device to limit the maximum number of non-overlapping CCEs of the scheduled cell in each time slot on the active DL BWP of the scheduling cell to, That is, the terminal device does not need to monitor more than non-overlapping CCEs.

For another example, taking the above "case 4" as an example, this embodiment of the present application may configure the terminal device to limit the maximum number of PDCCH candidates for the scheduled cell in each span on the active DL BWP of the scheduling cell to, That is, the terminal device does not need to monitor more than non-overlapping CCEs.

For another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure the PDCCH candidates of the terminal device for the scheduled cell in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduling cell The maximum number of is limited to, That is, the terminal device does not need _to listen to more _than non-overlapping CCEs.

(9) Exemplary description of "case 2"

In "Case 2", the embodiment of the present application can configure N (1<N<M) multi-carrier scheduling factors through high-layer signaling, and limit the maximum number of PDCCH candidates through the N multi-carrier scheduling factors or not The overlapping CCEs are determined (or divided) into N parts that support multi-carrier scheduling, and each part needs to be multiplied by a corresponding multi-carrier scheduling factor.

①The maximum number of PDCCH candidates is limited

If a scheduled cell is scheduled by N scheduling cells, and the scheduled cell only supports multi-carrier scheduling, the maximum number of PDCCH candidates can include the maximum number of N first-type PDCCH candidates, each first The maximum number of PDCCH-like candidates is multiplied by a corresponding multi-carrier scheduling factor.

For example, taking the above "case two" as an example, the embodiment of the present application can configure N multi-carrier scheduling factors through high-level signaling, that is, ^bi , i={1,2,...,N}, And through the N multi-carrier scheduling factors, the maximum number of PDCCH candidates configured to the terminal equipment in each time slot on the active DL BWP of the scheduling cell is determined (or divided) into N parts, Right now

As another example, taking the above "case four" as an example, the embodiment of the present application can configure N multi-carrier scheduling factors through high-layer signaling, that is, b ⁱ , i={1,2,...,N}, And through the N multi-carrier scheduling factors, the maximum number of PDCCH candidates configured to the terminal equipment in each span on the active DL BWP of the scheduling cell is determined (or divided) into N parts, namely

For another example, taking the above-mentioned "scenario five" as an example, the embodiment of the present application can configure N multi-carrier scheduling factors through high-layer signaling, that is, bi, ⁱ ={1,2,...,N}, And through the N multi-carrier scheduling factors, the maximum number of PDCCH candidates configured to the terminal equipment in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduling cell is determined to limit the number of PDCCH candidates for the scheduled cell (or divided) into N parts, namely

②The maximum number limit of non-overlapping CCE

If a scheduled cell is scheduled by N scheduling cells, and the scheduled cell only supports multi-carrier scheduling, the maximum number of PDCCH candidates may include the maximum number of N first-type non-overlapping CCEs, each The maximum number limit of a type of non-overlapping CCE is multiplied by a corresponding multi-carrier scheduling factor.

For example, taking the above "case two" as an example, the embodiment of the present application can configure N multi-carrier scheduling factors through high-level signaling, that is, ^bi , i={1,2,...,N}, And through the N multi-carrier scheduling factors, the maximum number of non-overlapping CCEs configured to the terminal equipment in each time slot on the active DL BWP of the scheduling cell for the scheduled cell is determined (or divided) into N parts ,Right now

For another example, taking the above "case 4" as an example, the embodiment of the present application can configure N multi-carrier scheduling factors through high-level signaling, that is, b ⁱ , i={1,2,...,N}, And by using the N multi-carrier scheduling factors, the maximum number of non-overlapping CCEs configured to the terminal equipment in each span on the active DL BWP of the scheduling cell is determined (or divided) into N parts, Right now

For another example, taking the above-mentioned "scenario five" as an example, the embodiment of the present application can configure N multi-carrier scheduling factors through high-layer signaling, that is, bi, ⁱ ={1,2,...,N}, And through the N multi-carrier scheduling factors, the maximum number of non-overlapping CCEs for the scheduled cell in each (X _S , Y _S ) combined multi-slot configured to the terminal device on the active DL BWP of the scheduling cell is limited Determine (or divide) into N parts, namely

(10) Exemplary description of "Case 3"

In "Case 3", the embodiment of the present application can configure a self-carrier scheduling factor (or a cross-carrier scheduling factor) and a multi-carrier scheduling factor through high-layer signaling, and configure a self-carrier scheduling factor (or a cross-carrier scheduling factor) factor) and a multi-carrier scheduling factor to determine (or divide) the maximum number of PDCCH candidates or non-overlapping CCEs into two parts, that is, one that supports self-carrier scheduling degree (or cross-carrier scheduling), and another part that supports multi-carrier scheduling.

①The maximum number of PDCCH candidates is limited

If a scheduled cell is scheduled by a scheduling cell, and the scheduled cell supports both multi-carrier scheduling, self-carrier scheduling or cross-carrier scheduling, the maximum number of PDCCH candidates can include the maximum number of PDCCH candidates of the second type The limit on the number and the limit on the maximum number of one (N=1) PDCCH candidates of the first type.

It should be noted that the limit on the maximum number of PDCCH candidates of the second type corresponds to self-carrier scheduling or cross-carrier scheduling. That is to say, the limit on the maximum number of PDCCH candidates of the second type may be the limit on the maximum number of PDCCH candidates supporting self-carrier scheduling or cross-carrier scheduling.

During specific implementation, the embodiment of the present application may have the following two modes:

Method 1:

The maximum number limit of the second type of PDCCH candidates can be a ₁ times the maximum number limit of the first PDCCH candidate (this term is mainly to facilitate distinction, and other terms can also be used to describe, and there is no specific limit on this), and a ₁ is Self-carrier scheduling factor or cross-carrier scheduling factor;

The maximum number limit of the first type of PDCCH candidates may be b ₁ times the maximum number limit of the first PDCCH candidates, b ₁ is the multi-carrier scheduling factor, and a ₁ +b ₁ ≤1;

Wherein, the maximum number limit of the first PDCCH candidate can be determined by and OK, can be determined by and OK, can be determined by and Sure.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of third PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the difference between the maximum number of the third PDCCH candidates in the embodiment of the present application and the maximum number of the above-mentioned first PDCCH candidates is that the subcarriers of the scheduling cell are replaced by the subcarrier spacing μ _MSd of the scheduled cell Interval μ. Wherein, if the scheduled cell supports self-carrier scheduling, μ _MSd is the subcarrier spacing corresponding to the scheduled cell; if the scheduled cell supports cross-carrier scheduling, then μ _MSd is the subcarrier spacing corresponding to the cell that schedules the scheduled cell across carriers Carrier spacing.

In this regard, the maximum number of third PDCCH candidates may be the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduled cell, that is, the subcarrier spacing of the scheduled cell is μ _MSd , and the time unit is slot/(X,Y) combined span/(X _S , Y _S ) combined multi-slot.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of fourth PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the difference between the maximum number of the fourth PDCCH candidates in the embodiment of the present application and the maximum number of the above-mentioned second PDCCH candidates is that the subcarriers of the scheduling cell are replaced by the subcarrier spacing μ _MSd of the scheduled cell Interval μ. Therefore, the maximum number of fourth PDCCH candidates can be determined by the PDCCH monitoring capability reported by the terminal device, the maximum number of third PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and all subcarriers in M cells The number of cells corresponding to the interval is determined.

Among them, the PDCCH monitoring capability reported by the terminal equipment is The number of cells corresponding to the subcarrier spacing of the scheduled cell is or The number of cells corresponding to all subcarrier spacings in M cells is or

For example, taking the above "case two" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₁ and a multi-carrier scheduling factor b ₁ through high-level signaling, and a ₁ +b ₁ ≤1, and determine (or divide) the maximum number of PDCCH candidates configured to the terminal equipment in each time slot on the activated DL BWP of the scheduled cell into 2 by a ₁ and b ₁ part, namely

As another example, taking the above "case 4" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₁ and a multi-carrier scheduling factor b ₁ through high-layer signaling, and a ₁ +b ₁ ≤ 1, and through a ₁ and b ₁ , determine (or divide) the maximum number of PDCCH candidates configured to the terminal device in each span on the activated DL BWP of the scheduled cell for the scheduled cell into 2 part, namely

As another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₁ and a multi-carrier scheduling factor b ₁ through high-layer signaling, and a ₁ +b ₁ ≤ 1, and through a ₁ and b _1, configure the maximum number of PDCCH candidates for the scheduled cell in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduled cell. The number limit is determined (or divided) into 2 parts, namely

Mode 2: μ _MSd ≤ μ _MS

The maximum number limit of the second type of PDCCH candidates can be determined by and OK, can be determined by and OK, can be determined by and Determined, a ₃ is a self-carrier scheduling factor or a cross-carrier scheduling factor;

The maximum number of PDCCH candidates of the first type is limited, which can be determined by and OK, can be determined by and OK, can be determined by and It is determined that b ₃ is a multi-carrier scheduling factor, and a ₃ +b ₃ ≤1.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of fifth PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the maximum number of fifth PDCCH candidates in this embodiment of the present application may be a ₃ times the maximum number of third PDCCH candidates above.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of seventh PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the maximum number of seventh PDCCH candidates in this embodiment of the present application may be _b3 times the maximum number of third PDCCH candidates above.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of sixth PDCCH candidates". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the maximum number of the sixth PDCCH candidates in the embodiment of the present application may be the maximum number of the above-mentioned fourth PDCCH candidates. big number.

For example, taking the above "case two" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₃ and a multi-carrier scheduling factor b ₃ through high-level signaling, and a ₃ +b ₃ ≤1, and determine (or divide) the maximum number of PDCCH candidates configured to the terminal equipment in each time slot on the activated DL BWP of the scheduled cell into 2 by a ₃ and b ₃ part, namely

As another example, taking the above "case 4" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₃ and a multi-carrier scheduling factor b ₃ through high-layer signaling, and a ₃ +b ₃ ≤ 1, and through a ₃ and b ₃ , determine (or divide) the maximum number of PDCCH candidates configured to the terminal device in each span on the activated DL BWP of the scheduled cell for the scheduled cell into 2 part, namely

As another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₃ and a multi-carrier scheduling factor b ₃ through high-layer signaling, and a ₃ +b ₃ ≤ 1, and through a ₃ and b _3, configure the maximum number of PDCCH candidates for the scheduled cell in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduled cell. The number limit is determined (or divided) into 2 parts, namely

②The maximum number limit of non-overlapping CCE

If a scheduled cell is scheduled by a scheduling cell, and the scheduled cell supports both multi-carrier scheduling, self-carrier scheduling or cross-carrier scheduling, the maximum number of non-overlapping CCEs may include a second type of non-overlapping CCE and the maximum number of one (N=1) first-type non-overlapping CCEs. Among them, the embodiment of this application may have the following two modes:

Method a:

The limit on the maximum number of non-overlapping CCEs of the second type can be ₂ times the limit on the maximum number of non-overlapping CCEs of the first type (this term is mainly for the convenience of distinction, and other terms can also be used to describe it, and there is no specific limit on this), a ₂ is self-carrier scheduling factor or cross-carrier scheduling factor;

The maximum number limit of the first type of non-overlapping CCEs may be b ₂ times the maximum number limit of the first non-overlapping CCEs, b ₂ is the multi-carrier scheduling factor, and a ₂ +b ₂ ≤1;

Wherein, the maximum number limit of the first non-overlapping CCE can be determined by and OK, can be determined by and OK, can be determined by and Sure.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of third non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the difference between the maximum number of the third non-overlapping CCEs in the embodiment of the present application and the maximum number of the first non-overlapping CCEs is that the subcarrier spacing μ MSd of the scheduled cell is used to replace the subcarrier spacing μ _MSd of the scheduling cell. Subcarrier spacing μ. Wherein, if the scheduled cell supports self-carrier scheduling, μ _MSd is the subcarrier spacing corresponding to the scheduled cell; if the scheduled cell supports cross-carrier scheduling, then μ _MSd is the subcarrier spacing corresponding to the cell that schedules the scheduled cell across carriers Carrier spacing.

In this regard, the third maximum number of non-overlapping CCEs may be the maximum number of monitoring non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell, that is, the subcarrier spacing of the scheduled cell is μ _MSd , and the time unit A multislot for a slot/(X,Y) combination span/(X _S , Y _S ) combination.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of fourth non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the difference between the maximum number of the fourth non-overlapping CCEs in the embodiment of the present application and the maximum number of the second non-overlapping CCEs above is that the subcarrier spacing μ MSd of the scheduled cell is used to replace the subcarrier spacing μ _MSd of the scheduling cell. Subcarrier spacing μ. Therefore, the maximum number of the fourth non-overlapping CCEs can be determined by the PDCCH monitoring capability reported by the terminal device, the maximum number of the third non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and all of the M cells. The number of cells corresponding to the subcarrier spacing is determined.

Among them, the PDCCH monitoring capability reported by the terminal equipment is or The number of cells corresponding to the subcarrier spacing of the scheduled cell is or The number of cells corresponding to all subcarrier spacings in M cells is or

For example, taking the above "scenario 2" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₂ and a multi-carrier scheduling factor b ₂ through high-layer signaling, and a ₂ +b ₂ ≤1, and determine (or divide) the maximum number of non-overlapping CCEs configured to the terminal equipment in each time slot on the activated DL BWP of the scheduled cell for the scheduled cell into 2 by a ₂ and b ₂ parts, namely

As another example, taking the above "case 4" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₂ and a multi-carrier scheduling factor b ₂ through high-layer signaling, and a ₂ +b ₂ ≤ 1, and determine (or divide) the maximum number of non-overlapping CCEs configured to the terminal equipment in each span on the activated DL BWP of the scheduled cell for the scheduled cell into 2 by a ₂ and b ₂ parts, namely

As another example, taking the above-mentioned "scenario five" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₂ and a multi-carrier scheduling factor b ₂ through high-level signaling, and a ₂ +b ₂ ≤ 1, and through a ₂ and b _2, the maximum non-overlapping CCE for the scheduled cell in each (X _S , Y _S ) combined multi-slot configured to the terminal equipment on the active DL BWP of the scheduled cell The number limit is determined (or divided) into 2 parts, namely

Mode b: μ _MSd ≤ μ _MS

The maximum number of non-overlapping CCEs of the second type can be limited by and OK, can be determined by and OK, can be determined by and Determined, a ₄ is a self-carrier scheduling factor or a cross-carrier scheduling factor;

The maximum number of non-overlapping CCEs of the first type can be limited by and OK, can be determined by and OK, can be determined by and It is determined that b ₄ is a multi-carrier scheduling factor, and a ₄ +b ₄ ≤1.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of fifth non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the maximum number of the fifth non-overlapping CCEs in the embodiment of the present application may be a ₄ times the maximum number of the third non-overlapping CCEs.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of seventh non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the maximum number of the seventh non-overlapping CCEs in the embodiment of the present application may be _b4 times the maximum number of the third non-overlapping CCEs.

In order to facilitate description and distinction, the embodiment of this application may use It is called "the maximum number of sixth non-overlapping CCEs". Of course, other terms may also be used for description, which is not specifically limited.

It should be noted that the maximum number of the sixth non-overlapping CCEs in the embodiment of the present application may be the maximum number of the above-mentioned fourth non-overlapping CCEs.

For example, taking the above "scenario 2" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₄ and a multi-carrier scheduling factor b ₄ through high-layer signaling, and a ₄ +b ₄ ≤1, and determine (or divide) the maximum number of non-overlapping CCEs configured to the terminal equipment in each time slot on the activated DL BWP of the scheduled cell for the scheduled cell into 2 by a ₄ and b ₄ parts, namely

As another example, taking the above "case four" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₄ and a multi-carrier scheduling factor b ₄ through high-layer signaling, and a ₄ +b ₄ ≤ 1, and through a ₄ and b _4, determine (or divide) the maximum number of non-overlapping CCEs configured to the terminal device in each span on the activated DL BWP of the scheduled cell for the scheduled cell into 2 parts, namely

As another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₄ and a multi-carrier scheduling factor b ₄ through high-layer signaling, and a ₄ +b ₄ ≤ 1, and through a ₄ and b ₄ , the maximum non-overlapping CCE for the scheduled cell in each (X _S , Y _S ) combined multi-slot configured to the terminal equipment on the active DL BWP of the scheduled cell The number limit is determined (or divided) into 2 parts, namely

(11) Exemplary description of "Case 4"

In "Case 4", the embodiment of the present application can configure a self-carrier scheduling factor (or a cross-carrier scheduling factor) and N multi-carrier scheduling factors through high-level signaling, and use a self-carrier scheduling factor (or a Scheduling factor) and N multi-carrier scheduling factors limit the maximum number of PDCCH candidates or determine (or divide) non-overlapping CCEs into N+1 parts, that is, a part that supports self-carrier scheduling (or cross-carrier scheduling), N A part that supports multi-carrier scheduling.

①The maximum number of PDCCH candidates is limited

If a scheduled cell is scheduled by N (1<N<M) scheduling cells, and the scheduled cell supports both multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, the maximum number of PDCCH candidates The number restriction may include: a restriction on the maximum number of PDCCH candidates of the second type and a restriction on the maximum number of N (1<N<M) PDCCH candidates of the first type. Among them, the embodiment of this application may have the following two modes:

Method 1:

The maximum number limit of the i-th first type PDCCH candidate is the maximum number limit of the first PDCCH candidate times, is the multi-carrier scheduling factor, i = {1,...,N};

For example, taking the above "scenario 2" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₁ and N multi-carrier scheduling factors through high-layer signaling i={1,...,N}, and through a self-carrier scheduling factor (or cross-carrier scheduling factor) and N multi-carrier scheduling factors, configure each time slot of the terminal equipment on the active DL BWP of the scheduled cell The maximum number of PDCCH candidates for the scheduled cell is restricted (or divided) into N+1 parts, namely

As another example, taking the above "case 4" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier wave scheduling factor) a ₁ and N multi-carrier scheduling factors and i={1,...,N}, and through a self-carrier scheduling factor (or cross-carrier scheduling factor) and N multi-carrier scheduling factors will be configured to the terminal equipment in each span on the active DL BWP of the scheduled cell Determine (or divide) the maximum number of PDCCH candidates for the scheduled cell into N+1 parts, namely

As another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₁ and N multi-carrier scheduling factors through high-layer signaling and i={1,...,N}, and configure each (X _S , Y _S ) combined multi-slots for the maximum number of PDCCH candidates of the scheduled cell is determined (or divided) into N+1 parts, namely

Mode 2: μ _MSd ≤ μ _MS

The maximum number of i-th first-type PDCCH candidates is limited, which can be determined by and OK, can be determined by and OK, can be determined by and Sure, is the multi-carrier scheduling factor, i={1,...,N}.

It should be noted that the maximum number of seventh PDCCH candidates in the embodiment of the present application may be the maximum number of the above-mentioned third PDCCH candidates times.

It should be noted that the maximum number of sixth PDCCH candidates in the embodiment of the present application may be the maximum number of the above-mentioned fourth PDCCH candidates.

For example, taking the above "scenario 2" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier Scheduling factor) a ₃ and N multi-carrier scheduling factors and i={1,...,N}, and through a self-carrier scheduling factor (or cross-carrier scheduling factor) and N multi-carrier scheduling factors, configure each time slot of the terminal equipment on the active DL BWP of the scheduled cell The maximum number of PDCCH candidates for the scheduled cell is restricted (or divided) into N+1 parts, namely

As another example, taking the above "case four" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₃ and a multi-carrier scheduling factor through high-layer signaling and i={1,...,N}, and through a self-carrier scheduling factor (or cross-carrier scheduling factor) and N multi-carrier scheduling factors will be configured to the terminal equipment in each span on the active DL BWP of the scheduled cell Determine (or divide) the maximum number of PDCCH candidates for the scheduled cell into N+1 parts, namely

As another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₃ and a multi-carrier scheduling factor through high-layer signaling and i={1,...,N}, and configure each (X _S , Y _S ) The maximum number of PDCCH candidates for the scheduled cell in the multi-slot combination is determined (or divided) into 2 parts, namely

②The maximum number limit of non-overlapping CCE

If a scheduled cell is scheduled by a scheduling cell and supports both multi-carrier scheduling, self-carrier scheduling or cross-carrier scheduling, the maximum number of non-overlapping CCEs includes a maximum number of second-type non-overlapping CCEs and N (1<N<M) limit the maximum number of non-overlapping CCEs of the first type. Among them, the embodiment of this application may have the following two modes:

Method a:

The maximum number limit of the second type of non-overlapping CCE is a ₂ times the maximum number limit of the first non-overlapping CCE (this term is mainly for the convenience of distinction, and other terms can also be used to describe it, and there is no specific limit on this), a ₂ is a self-carrier scheduling factor or a cross-carrier scheduling factor;

The maximum number limit of the i-th first non-overlapping CCE is the maximum number limit of the first non-overlapping CCE times, b ₂ is the multi-carrier scheduling factor, i = {1,...,N};

It should be noted that the maximum number of the third non-overlapping CCEs in the embodiment of the present application is the same as the maximum number of the first non-overlapping CCEs above. The only difference is that the subcarrier spacing μ of the scheduling cell is replaced by the subcarrier spacing μ _MSd of the scheduled cell. Wherein, if the scheduled cell supports self-carrier scheduling, μ _MSd is the subcarrier spacing corresponding to the scheduled cell; if the scheduled cell supports cross-carrier scheduling, then μ _MSd is the subcarrier spacing corresponding to the cell that schedules the scheduled cell across carriers Carrier spacing.

For example, taking the above "scenario 2" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₂ and N multi-carrier scheduling factors through high-layer signaling i={1,...,N}, and through a self-carrier scheduling factor (or cross-carrier scheduling factor) and N multi-carrier scheduling factors, configure each time slot of the terminal equipment on the active DL BWP of the scheduled cell Determine (or divide) N+1 parts for the maximum number of non-overlapping CCEs in the scheduled cell, namely

As another example, taking the above "case four" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₂ and N multi-carrier scheduling factors through high-layer signaling i={1,...,N}, and through a self-carrier scheduling factor (or cross-carrier scheduling factor) and N multi-carrier scheduling factors will be configured to the terminal equipment in each span on the active DL BWP of the scheduled cell Determine (or divide) the maximum number of non-overlapping CCEs of the scheduled cell into N+1 parts, namely

As another example, taking the above "scenario 5" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) _a2 and N multi-carrier scheduling factors through high-layer signaling i={1,…,N}, and through a self-carrier scheduling factor Sub (or cross-carrier scheduling factor) and N multi-carrier scheduling factors will be configured for the terminal equipment in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduled cell for the scheduled cell's non- The maximum number of overlapping CCEs is determined (or divided) into N+1 parts, namely

Mode b: μ _MSd ≤ μ _MS

The maximum number of non-overlapping CCEs that support self-carrier scheduling or cross-carrier scheduling can be determined by and OK, can be determined by and OK, can be determined by and Determined, a ₄ is a self-carrier scheduling factor or a cross-carrier scheduling factor;

The maximum number of i-th non-overlapping CCEs of the first type can be limited by and OK, can be determined by and OK, can be determined by and Sure, is the multi-carrier scheduling factor, i={1,...,N}.

It should be noted that the maximum number of the seventh non-overlapping CCEs in this embodiment of the present application may be the maximum number of the above-mentioned third non-overlapping CCEs times.

It should be noted that the maximum number of sixth non-overlapping CCEs in this embodiment of the present application may be the above-mentioned fourth non-overlapping CCEs.

For example, taking the above "scenario 2" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₄ and N multi-carrier scheduling factors through high-layer signaling i={1,...,N}, and through a ₄ and b ₄ , configure the maximum number of non-overlapping CCEs for the scheduled cell in each time slot on the activated DL BWP of the scheduled cell for the terminal equipment Determine (or divide) into N+1 parts, namely

As another example, taking the above "case four" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₄ and N multi-carrier scheduling factors through high-layer signaling i={1,...,N}, and determine the maximum number of non-overlapping CCEs configured to the terminal equipment in each span on the active DL BWP of the scheduled cell for the scheduled cell through a ₄ and b ₄ (or divide) into N+1 parts, namely

As another example, taking the above-mentioned "scenario five" as an example, the embodiment of the present application can configure a self-carrier scheduling factor (or cross-carrier scheduling factor) a ₄ and N multi-carrier scheduling factors through high-layer signaling i={1,...,N}, and through a ₄ and b ₄ will be configured to the terminal equipment in each (X _S , Y _S ) combined multi-slot on the active DL BWP of the scheduled cell for the scheduled cell The maximum number of non-overlapping CCEs is determined (or divided) into N+1 parts, namely

6. An exemplary description of a PDCCH monitoring method

To sum up, the following uses the interaction between a network device and a terminal device as an example to introduce a method for monitoring a PDCCH according to an embodiment of the present application. Wherein, the network device may also be a chip/chip module/device, etc., and the terminal device may also be a chip/chip module/device, etc., which are not specifically limited.

As shown in Figure 5, it is a schematic flow chart of a PDCCH monitoring method according to the embodiment of the present application, which specifically includes the following steps:

S510. The network device sends first information, where the first information is used to determine the maximum number of PDCCH candidates or the maximum number of non-overlapping CCEs of the terminal device for scheduled cells in the M cells within a time unit.

Wherein, the scheduled cell is a cell supporting multi-carrier scheduling.

Wherein, the multi-carrier scheduling means that the DCI carried by the PDCCH sent by the scheduling cell in the M cells schedules data transmission in multiple scheduled cells.

Wherein, M is an integer greater than 1.

Correspondingly, the terminal device acquires the first information.

It should be noted that, for "first information", "M cells", "multi-carrier scheduling", "scheduling cell", "scheduled cell", etc., refer to the above content for details, and will not repeat them here.

In addition, among the M cells in the embodiment of the present application, there are scheduled cells that support multi-carrier scheduling. Wherein, the cell supporting multi-carrier scheduling may be a cell supporting scheduling through the first DCI, and the first DCI is the DCI for scheduling multiple cells carried by the PDCCH sent on the scheduling cell among the M cells.

Of course, the first DCI may also be described using other terms, which are not specifically limited.

S520. The terminal device monitors the PDCCH according to the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs.

In some possible implementations, the limit on the maximum number of PDCCH candidates is determined according to the number of scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell;

The limit on the maximum number of non-overlapping CCEs is determined according to the number of scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell;

The scheduling types supported by the scheduled cell include: the scheduled cell only supports multi-carrier scheduling, and the scheduled cell supports both multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling.

In some possible implementations, the limit on the maximum number of PDCCH candidates is determined according to the number of scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell, including:

If the scheduled cell is scheduled by a scheduling cell, and the scheduled cell only supports multi-carrier scheduling, the maximum number of PDCCH candidates includes a maximum number of first-type PDCCH candidates, and the maximum number of first-type PDCCH candidates The restriction corresponds to multi-carrier scheduling.

In some possible implementations, the limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of first PDCCH candidates and the maximum number of second PDCCH candidates;

The maximum number of first PDCCH candidates is the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier interval of the scheduling cell;

The maximum number of second PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of first PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduling cell, and the cells corresponding to the subcarrier spacing of all M cells The number is determined.

In some possible implementations, the limit on the maximum number of non-overlapping CCEs is determined according to the number of scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell, including:

If the scheduled cell is scheduled by a scheduling cell, and the scheduled cell only supports multi-carrier scheduling, the maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the first type, and the maximum number of non-overlapping CCEs of the first type The maximum number limit corresponds to multi-carrier scheduling.

In some possible implementations, the limit on the maximum number of non-overlapping CCEs of the first type is determined by the maximum number of first non-overlapping CCEs and the maximum number of second non-overlapping CCEs;

The maximum number of first non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of second non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal equipment, the maximum number of first non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduling cell, and the corresponding subcarrier spacing of all M cells The number of cells is determined.

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of PDCCH candidates is limited, including a maximum number of second-type PDCCH candidates and a maximum number of N first-type PDCCH candidates. The maximum number of second-type PDCCH candidates corresponds to self-carrier scheduling or inter-carrier scheduling. For carrier scheduling, the maximum number of PDCCH candidates of the first type is restricted to correspond to multi-carrier scheduling.

In some possible implementations, the maximum number of PDCCH candidates of the second type is limited to a ₁ times the maximum number of PDCCH candidates, and a ₁ is the self-carrier scheduling factor or cross-carrier scheduling factor in the first information ;

The maximum number limit of the i-th first-type PDCCH candidate is b ₁ ⁱ times the maximum number limit of the first PDCCH candidate, and b ₁ ⁱ is the multi-carrier scheduling factor of the i-th scheduling cell in the first information, and i = {1,...,N};

The maximum number limit of the first PDCCH candidate is determined by the maximum number of the third PDCCH candidate and the maximum number of the fourth PDCCH candidate;

The maximum number of third PDCCH candidates is the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier interval of the scheduled cell;

The maximum number of fourth PDCCH candidates, the PDCCH monitoring capability reported by the terminal equipment, the maximum number of three PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the cells corresponding to all subcarrier spacings in the M cells The number is determined.

In some possible implementations, the limit on the maximum number of PDCCH candidates of the second type is determined by the maximum number of fifth PDCCH candidates and the maximum number of sixth PDCCH candidates;

The limit on the maximum number of i-th PDCCH candidates of the first type is determined by the maximum number of sixth PDCCH candidates and the maximum number of seventh PDCCH candidates, i={1,...,N};

The maximum number of the fifth PDCCH candidate is ₃ times the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier spacing of the scheduled cell, and a ₃ is the self-carrier scheduling factor or cross-carrier scheduling in the first information factor;

The maximum number of sixth PDCCH candidates, the PDCCH monitoring capability reported by the terminal equipment, the maximum number of fifth PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to the subcarrier spacing of all M cells The number of districts is determined;

The seventh maximum number of PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the second type and a maximum number of N non-overlapping CCEs of the first type. The maximum number of non-overlapping CCEs of the second type corresponds to For carrier scheduling or cross-carrier scheduling, the maximum number of non-overlapping CCEs of the first type is limited to multi-carrier scheduling.

In some possible implementations, the maximum number limit of the second type of non-overlapping CCEs is a ₂ times the maximum number limit of the first non-overlapping CCEs, and a ₂ is the self-carrier scheduling factor or cross-carrier in the first information scheduling factor;

The limit on the maximum number of the i-th non-overlapping CCE of the first type is the maximum number of the first non-overlapping CCE times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and i={1,2,...,N};

The maximum number limit of the first non-overlapping CCE is determined by the maximum number of the third non-overlapping CCE and the maximum number of the fourth non-overlapping CCE;

The third maximum number of non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth non-overlapping CCE, the PDCCH monitoring capability reported by the terminal device, the maximum number of the third non-overlapping CCE, the number of cells corresponding to the sub-carrier spacing of the scheduled cell, and the spacing of all sub-carriers in M cells The number of corresponding cells is determined.

In some possible implementations, the maximum number of non-overlapping CCEs of the second type is limited by the maximum number of non-overlapping CCEs of the fifth and the sixth Determine the maximum number of non-overlapping CCEs;

The maximum number of the i-th non-overlapping CCE of the first type is limited by the maximum number of the sixth non-overlapping CCE and the maximum number of the seventh non-overlapping CCE, i={1,...,N};

The fifth maximum number of non-overlapping CCEs is a ₄ times the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier interval of the scheduled cell, and a ₄ is the self-carrier scheduling factor or cross-carrier in the first information scheduling factor;

The sixth maximum number of non-overlapping CCEs is determined by the PDCCH monitoring capability reported by the terminal device, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to all subcarrier spacings in the M cells;

The seventh maximum number of non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

In some possible implementations, the M cells are cells under carrier aggregation.

7. An exemplary description of a communication device

The foregoing mainly introduces the solutions of the embodiments of the present application from the perspective of the method side. It can be understood that, in order to realize the above-mentioned functions, the terminal device or network device includes corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may implement the described functionality using different methods for each particular application, but such implementation should not be considered as exceeding the scope of the present application.

In this embodiment of the present application, the terminal device or the network device may be divided into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated units can be implemented not only in the form of hardware, but also in the form of software program modules. It should be noted that the division of units in the embodiment of the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation.

In the case of using integrated units, FIG. 6 is a block diagram of functional units of an apparatus for monitoring a physical downlink control channel according to an embodiment of the present application. The apparatus 600 for monitoring a physical downlink control channel includes: an acquiring unit 601 and a monitoring unit 602 .

In some possible implementations, the acquiring unit 601 may be a modular unit for acquiring or processing signals, data, information, and the like.

In some possible implementations, the listening unit 602 may be a modular unit for processing signals, data, information, etc., which is not specifically limited.

In some possible implementations, the device 600 for monitoring the physical downlink control channel may further include a storage unit for storing computer program codes or instructions executed by the device 600 for monitoring the physical downlink control channel. The storage unit may be a memory.

In some possible implementations, the physical downlink control channel monitoring device 600 may be a chip or a chip module.

In some possible implementations, the acquisition unit 601 and the monitoring unit 602 may be integrated into one unit, or be separate units.

For example, the acquisition unit 601 and the monitoring unit 602 may be integrated in the communication unit. Wherein, the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.

For another example, the acquiring unit 601 and the monitoring unit 602 may be integrated into the processing unit. Wherein, the processing unit may be a processor or a controller, such as a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), a dedicated Integrated circuit (application-specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processing unit may also be a combination that realizes computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and the like.

For another example, the obtaining unit 601 may be integrated in the communication unit, and the monitoring unit 602 may be integrated in the processing unit.

In some possible implementations, the acquisition unit 601 and the monitoring unit 602 are configured to perform any step performed by the terminal device, chip, chip module, etc. in the above method embodiments, such as data transmission such as sending or receiving. Detailed description will be given below.

During specific implementation, the obtaining unit 601 is used to obtain the first information, and the first information is used to determine the maximum number of PDCCH candidates of the scheduled cell among the M cells within the time unit of the physical downlink control channel monitoring device 600 and /or the maximum number of non-overlapping CCEs is limited, and the scheduled cell is a cell that supports multi-carrier scheduling. Multi-carrier scheduling means that the DCI carried by the PDCCH sent on the scheduling cell in the M cells schedules data in multiple scheduled cells Transmission, M is an integer greater than 1;

The monitoring unit 602 is configured to perform PDCCH monitoring according to the maximum number limitation of PDCCH candidates and/or the maximum number limitation of non-overlapping CCEs.

It can be seen that the embodiment of the present application introduces the DCI carried by the PDCCH sent by the scheduling cell in the M cells to schedule data transmission in multiple scheduled cells, that is, multi-carrier scheduling, and determines the physical downlink control channel monitoring device 600 through the first information. Limit the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs for the scheduled cell in the M cells in a time unit, so that the physical downlink control channel monitoring device 600 can limit the maximum number of PDCCH candidates And/or limit the maximum number of non-overlapping CCEs for PDCCH monitoring, which is beneficial to realize PDCCH monitoring in the case of supporting multi-carrier scheduling, and realize the possibility of reducing the complexity of PDCCH monitoring to save power consumption through multi-carrier scheduling .

It should be noted that, for the specific implementation of each operation in the embodiment shown in FIG. 6 , refer to the description in the above-mentioned method embodiment for details, and details are not repeated here.

In some possible implementations, the limit on the maximum number of PDCCH candidates is determined according to the number of scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell, and may include:

The maximum number limit of the i-th first type PDCCH candidate is the maximum number limit of the first PDCCH candidate times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and i = {1,...,N};

The maximum number of sixth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of fifth PDCCH candidates number, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to all subcarrier spacing in the M cells;

In some possible implementations, the limit on the maximum number of non-overlapping CCEs of the second type is determined by the maximum number of fifth non-overlapping CCEs and the maximum number of sixth non-overlapping CCEs;

8. An exemplary description of another communication device

In the case of using integrated units, Fig. 7 is a functional unit of another physical downlink control channel monitoring device according to the embodiment of the present application Composition block diagram. The device 700 for monitoring a physical downlink control channel includes: a sending unit 701 .

In some possible implementations, the sending unit 701 may be a modular unit for sending or processing signals, data, information, etc., which is not specifically limited.

In some possible implementations, the device 700 for monitoring the physical downlink control channel may further include a storage unit for storing computer program codes or instructions executed by the device 700 for monitoring the physical downlink control channel. The storage unit may be a memory.

In some possible implementations, the physical downlink control channel monitoring device 700 may be a chip or a chip module.

In some possible implementations, the sending unit 701 may be integrated into a processing unit. Wherein, the processing unit may be a processor or a controller, such as a baseband chip, CPU, general processor, DSP, ASIC, FPGA or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processing unit may also be a combination that realizes computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and the like.

In some possible implementations, the sending unit 701 may be integrated into a communication unit. Wherein, the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.

In some possible implementations, the sending unit 701 is configured to perform any step performed by the network device, chip, chip module, etc. in the above method embodiments, such as sending data/signals/information. Detailed description will be given below.

During specific implementation, the sending unit 701 is configured to send the first information, and the first information is used to determine the maximum number of PDCCH candidates and/or non-overlapping CCEs of the terminal device for the scheduled cell in the M cells within the time unit The maximum number of the scheduled cell is a cell that supports multi-carrier scheduling. Multi-carrier scheduling means that the DCI carried by the PDCCH sent on the scheduling cell in the M cells schedules data transmission in multiple scheduled cells. M is greater than An integer of 1, the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs are used for PDCCH monitoring.

It should be noted that, for the specific implementation of each operation in the embodiment shown in FIG. 7 , refer to the description in the above-mentioned method embodiment for details, and details are not repeated here.

The maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the second type and a maximum number of N non-overlapping CCEs of the first type. The maximum number of non-overlapping CCEs of the second type corresponds to For self-carrier scheduling or cross-carrier scheduling, the maximum number of non-overlapping CCEs of the first type corresponds to multi-carrier scheduling.

The sixth is the maximum number of non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal equipment, and the subcarrier spacing of the scheduled cell. The number of corresponding cells and the number of cells corresponding to all subcarrier intervals in the M cells are determined;

9. An exemplary description of a terminal device

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Wherein, the terminal device 800 includes a processor 810 , a memory 820 , and a communication bus for connecting the processor 810 and the memory 820 .

In some possible implementations, the memory 820 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read-only memory (erasable programmable read -only memory, EPROM) or portable read-only memory (compact disc read-only memory, CD-ROM), the memory 820 is used to store the program code executed by the terminal device 800 and the transmitted data.

In some possible implementations, the terminal device 800 also includes a communication interface for receiving and sending data.

In some possible implementations, the processor 810 may be one or more CPUs. In a case where the processor 810 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

In some possible implementations, the processor 810 may be a baseband chip, chip, CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof.

In some possible implementations, the processor 810 in the terminal device 800 is used to execute the computer program or instruction 821 stored in the memory 820, and perform the following operations: acquire first information, and the first information is used to determine that the terminal device is within a time unit For the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs in M cells, the scheduled cell is a cell that supports multi-carrier scheduling, and multi-carrier scheduling means scheduling in M cells The DCI carried by the PDCCH sent on the cell schedules data transmission in multiple scheduled cells, and M is an integer greater than 1;

Perform PDCCH monitoring according to the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs

It should be noted that the specific implementation of each operation can use the corresponding description of the above-mentioned method embodiments, and the terminal device 800 can be used to execute the method on the terminal device side of the above-mentioned method embodiments of the present application, which will not be described in detail here.

10. An exemplary description of a network device

Please refer to FIG. 9. FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the present application. Wherein, the network device 900 includes a processor 910 , a memory 920 and a communication bus for connecting the processor 910 and the memory 920 .

In some possible implementations, the memory 920 includes but is not limited to RAM, ROM, EPROM or CD-ROM, and the memory 920 is used to store related instructions and data.

In some possible implementations, the network device 900 also includes a communication interface for receiving and sending data.

In some possible implementations, the processor 910 may be one or more CPUs. When the processor 910 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

In some possible implementations, the processor 910 may be a baseband chip, chip, CPU, general processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof.

In some possible implementations, the processor 910 in the network device 900 is configured to execute the computer program or instruction 921 stored in the memory 920 to perform the following operations:

Sending the first information, the first information is used to determine the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs for the terminal device in the time unit for the scheduled cell in the M cells, the scheduled cell is A cell that supports multi-carrier scheduling. Multi-carrier scheduling means that the DCI carried by the PDCCH sent on the scheduling cell in M cells schedules data transmission in multiple scheduled cells. M is an integer greater than 1, and the maximum number of PDCCH candidates Limiting and/or limiting the maximum number of non-overlapping CCEs is used for PDCCH monitoring.

It can be seen that the embodiment of the present application introduces DCI scheduling carried by the PDCCH sent by the scheduling cell in the M cells to schedule multiple small scheduled Intra-zone data transmission, that is, multi-carrier scheduling, and determine the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs of the terminal device in the time unit for the scheduled cell in the M cells through the first information Restriction, so that the terminal device can perform PDCCH monitoring according to the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs, which is conducive to implementing PDCCH monitoring when multi-carrier scheduling is supported, and through multi-carrier scheduling Realize the possibility of reducing the monitoring complexity of PDCCH to save power consumption.

It should be noted that the specific implementation of each operation can use the corresponding description of the above-mentioned method embodiments, and the network device 900 can be used to execute the method on the network device side of the above-mentioned method embodiments of the present application, which will not be described in detail here.

11. Other illustrative instructions

In some possible implementations, the embodiment of the present application also provides a chip, including a processor, a memory, and a computer program or instruction stored on the memory, wherein the processor executes the computer program or instruction to implement the above method The steps performed by the terminal device or network device described in the embodiments.

In some possible implementations, the embodiment of the present application also provides a chip module, including a transceiver component and a chip, and the chip includes a processor, a memory, and computer programs or instructions stored on the memory, wherein the processor Execute the computer program or instruction to implement the steps executed by the terminal device or network device described in the above method embodiments.

In some possible implementations, the embodiments of the present application also provide a computer-readable storage medium, which stores computer programs or instructions. When the computer programs or instructions are executed, the terminal device or network described in the above method embodiments is implemented. The steps performed by the device.

In some possible implementations, the embodiments of the present application also provide a computer program product, including computer programs or instructions. When the computer program or instructions are executed, the steps performed by the terminal device or network device described in the above method embodiments are implemented. .

In some possible implementations, the embodiment of the present application further provides a communication system, including the foregoing terminal device and the foregoing network device.

It should be noted that, for the above-mentioned embodiments, for the sake of simple description, they are expressed as a series of action combinations. Those skilled in the art should know that the present application is not limited by the sequence of actions described, because some steps in the embodiments of the present application may be performed in other orders or simultaneously. In addition, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions, steps, modules or units involved are not necessarily required by the embodiments of the present application.

In the above-mentioned embodiments, the embodiments of the present application have different emphases in the description of each embodiment, and for the parts not described in detail in a certain embodiment, refer to the relevant descriptions of other embodiments.

The steps of the methods or algorithms described in the embodiments of the present application may be implemented in the form of hardware, or may be implemented in the form of a processor executing software instructions. Software instructions can be composed of corresponding software modules, and software modules can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (erasable programmable ROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disk, removable hard disk, compact disc read-only (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium can be located in the ASIC. In addition, the ASIC can be located in the terminal device or the management device. Certainly, the processor and the storage medium may also exist in the terminal device or the management device as discrete components.

Those skilled in the art should be aware that, in the above one or more examples, the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored in, or transmitted from, one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be sent from a website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) Transmission to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) wait.

The modules/units included in the devices and products described in the above embodiments may be software modules/units, hardware modules/units, or partly software modules/units and partly hardware modules/units. For example, for each device or product applied to or integrated in a chip, each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented in the form of a software program, which runs on the processor integrated in the chip module, and the remaining (if any) part of the modules The /unit can be implemented by means of hardware such as circuits; for each device or product applied to or integrated in the terminal equipment, each module / unit contained in it can be implemented by means of hardware such as circuits, and different modules / units can be located in the terminal equipment In the same component (for example, chip, circuit module, etc.) or in different components, or at least part of the modules/units can be implemented in the form of a software program, the software program runs on the processor integrated in the terminal device, and the rest (if any) ) Some modules/units can be implemented by means of hardware such as circuits.

The specific implementation manners described above further describe the purpose, technical solutions and beneficial effects of the embodiments of the present application in detail. To limit the protection scope of the embodiments of the present application, any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

A physical downlink control channel monitoring method is characterized in that it is applied to a terminal device, including:

Acquire first information, the first information is used to determine the maximum number of physical downlink control channel PDCCH candidates and/or non-overlapping channel control elements of the terminal device for the scheduled cell in the M cells within a time unit The maximum number of CCEs is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling means that the physical downlink control information DCI carried by the PDCCH sent on the scheduling cell among the M cells schedules multiple For data transmission in the scheduled cell, M is an integer greater than 1;

Perform PDCCH monitoring according to the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs.
The method according to claim 1, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell make a determination;

The limit on the maximum number of non-overlapping CCEs is determined according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell;

The scheduling type supported by the scheduled cell includes: the scheduled cell only supports the multi-carrier scheduling, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling.
The method according to claim 2, characterized in that the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of PDCCH candidates includes a maximum number of first-type PDCCH candidates , the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The method according to claim 3, wherein the maximum number of PDCCH candidates of the first type is limited by the maximum number of first PDCCH candidates and the maximum number of second PDCCH candidates;

The maximum number of the first PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of the second PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The method according to claim 2, characterized in that the maximum number of non-overlapping CCEs is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the first type The limit on the number of non-overlapping CCEs of the first type corresponds to the multi-carrier scheduling.
The method according to claim 5, wherein the limit on the maximum number of non-overlapping CCEs of the first type is determined by the maximum number of first non-overlapping CCEs and the maximum number of second non-overlapping CCEs;

The maximum number of the first non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of the second non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The method according to claim 2, characterized in that the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of PDCCH candidates includes a maximum number of second-type PDCCH candidates and a maximum number of N first-type PDCCH candidates, and the maximum number of second-type PDCCH candidates corresponds to the maximum number of PDCCH candidates. Referring to self-carrier scheduling or cross-carrier scheduling, the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The method according to claim 7, wherein the maximum number limit of the second type of PDCCH candidates is a 1 times the maximum number limit of the first PDCCH candidates, and a 1 is in the first information self-carrier scheduling factor or cross-carrier scheduling factor;

The i-th limit on the maximum number of PDCCH candidates of the first type is the limit on the maximum number of the first PDCCH candidates times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number of the first PDCCH candidates is limited by the maximum number of the third PDCCH candidates and the maximum number of the fourth PDCCH candidates The large number is determined;

The maximum number of the third PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the three PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The method according to claim 7, wherein the maximum number of PDCCH candidates of the second type is limited by the maximum number of fifth PDCCH candidates and the maximum number of sixth PDCCH candidates;

The i-th limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of the sixth PDCCH candidates and the maximum number of the seventh PDCCH candidates, i={1,...,N};

The maximum number of the fifth PDCCH candidates is 3 times the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier spacing of the scheduled cell, and a 3 is the self-carrier in the first information Scheduling factor or cross-carrier scheduling factor;

The maximum number of sixth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of fifth PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined;

The maximum number of the seventh PDCCH candidates is the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier interval of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The method according to claim 2, characterized in that the maximum number of non-overlapping CCEs is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the second type and a maximum number of N non-overlapping CCEs of the first type. The maximum number of non-overlapping CCEs of the second type The number limit corresponds to the self-carrier scheduling or cross-carrier scheduling, and the maximum number limit of the first type of non-overlapping CCEs corresponds to the multi-carrier scheduling.
The method according to claim 10, wherein the maximum number limit of the second type of non-overlapping CCE is a 2 times the maximum number limit of the first non-overlapping CCE, and a 2 is the first Self-carrier scheduling factor or cross-carrier scheduling factor in the information;

The i-th limit on the maximum number of non-overlapping CCEs of the first type is the maximum number of the first non-overlapping CCEs times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first non-overlapping CCE is determined by the maximum number of the third non-overlapping CCE and the maximum number of the fourth non-overlapping CCE;

The maximum number of the third non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth non-overlapping CCE, the PDCCH monitoring capability reported by the terminal device, the maximum number of the third non-overlapping CCE, the number of cells corresponding to the subcarrier spacing of the scheduled cell, The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The method according to claim 10, wherein the limit on the maximum number of non-overlapping CCEs of the second type is determined by the maximum number of fifth non-overlapping CCEs and the maximum number of sixth non-overlapping CCEs;

The maximum number of the i-th non-overlapping CCE of the first type is limited by the maximum number of the sixth non-overlapping CCE and the maximum number of the seventh non-overlapping CCE, i={1,...,N};

The maximum number of the fifth non-overlapping CCEs is a 4 times the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell, and a 4 is the first information in the first information Carrier scheduling factor or cross-carrier scheduling factor;

The maximum number of the sixth non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to the subcarrier spacing of all the M cells The number of districts is determined;

The maximum number of the seventh non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The method according to any one of claims 1-12, wherein the M cells are cells under carrier aggregation.
A physical downlink control channel monitoring method is characterized in that it is applied to network equipment, including:

Sending the first information, the first information is used to determine the maximum number of physical downlink control channel PDCCH candidates of the terminal device for the scheduled cell in the M cells within a time unit and/or the non-overlapping channel control element CCE The maximum number is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling means that the physical downlink control information DCI carried by the PDCCH sent on the scheduling cell in the M cells schedules multiple For data transmission in the scheduled cell, M is an integer greater than 1, and the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs are used for PDCCH monitoring.
The method according to claim 14, characterized in that the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell make a determination;

The limit on the maximum number of non-overlapping CCEs is determined according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell;

The scheduling type supported by the scheduled cell includes: the scheduled cell only supports the multi-carrier scheduling, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling.
The method according to claim 15, characterized in that the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of PDCCH candidates includes a maximum number of first-type PDCCH candidates , the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The method according to claim 16, wherein the limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of first PDCCH candidates and the maximum number of second PDCCH candidates;

The maximum number of the first PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of the second PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The method according to claim 15, wherein the limit on the maximum number of non-overlapping CCEs is based on the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the first type The limit on the number of non-overlapping CCEs of the first type corresponds to the multi-carrier scheduling.
The method according to claim 18, wherein the limit on the maximum number of non-overlapping CCEs of the first type is determined by the maximum number of first non-overlapping CCEs and the maximum number of second non-overlapping CCEs;

The maximum number of the first non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of the second non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The method according to claim 15, characterized in that the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of PDCCH candidates includes a maximum number of second-type PDCCH candidates and a maximum number of N first-type PDCCH candidates, and the maximum number of second-type PDCCH candidates corresponds to the maximum number of PDCCH candidates. Referring to self-carrier scheduling or cross-carrier scheduling, the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The method according to claim 20, wherein the maximum number limit of the second type of PDCCH candidates is a 1 times the maximum number limit of the first PDCCH candidates, and a 1 is in the first information self-carrier scheduling factor or cross-carrier scheduling factor;

The i-th limit on the maximum number of PDCCH candidates of the first type is the limit on the maximum number of the first PDCCH candidates times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first PDCCH candidate is determined by the maximum number of the third PDCCH candidate and the maximum number of the fourth PDCCH candidate;

The maximum number of the third PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the three PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The method according to claim 20, wherein the limit on the maximum number of PDCCH candidates of the second type is determined by the maximum number of fifth PDCCH candidates and the maximum number of sixth PDCCH candidates;

The i-th limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of the sixth PDCCH candidates and the maximum number of the seventh PDCCH candidates, i={1,...,N};

The maximum number of the fifth PDCCH candidates is 3 times the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier spacing of the scheduled cell, and a 3 is the self-carrier in the first information Scheduling factor or cross-carrier scheduling factor;

The maximum number of sixth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of fifth PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined;

The maximum number of the seventh PDCCH candidates is the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier interval of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The method according to claim 15, wherein the limit on the maximum number of non-overlapping CCEs is based on the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The limit on the maximum number of non-overlapping CCEs includes a limit on the maximum number of non-overlapping CCEs of the second type and a limit on the maximum number of N non-overlapping CCEs of the first type. The maximum number of non-overlapping CCEs of the second type The number limit corresponds to the self-carrier scheduling or cross-carrier scheduling, and the maximum number limit of the first type of non-overlapping CCEs corresponds to the multi-carrier scheduling.
The method according to claim 23, wherein the maximum number limit of the second type of non-overlapping CCE is a 2 times the maximum number limit of the first non-overlapping CCE, and a 2 is the first Self-carrier scheduling factor or cross-carrier scheduling factor in the information;

The i-th limit on the maximum number of non-overlapping CCEs of the first type is the maximum number of the first non-overlapping CCEs times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first non-overlapping CCE is determined by the maximum number of the third non-overlapping CCE and the maximum number of the fourth non-overlapping CCE;

The maximum number of the third non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth non-overlapping CCE, the PDCCH monitoring capability reported by the terminal device, the maximum number of the third non-overlapping CCE, the number of cells corresponding to the subcarrier spacing of the scheduled cell, The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The method according to claim 23, wherein the limit on the maximum number of non-overlapping CCEs of the second type is determined by the maximum number of fifth non-overlapping CCEs and the maximum number of sixth non-overlapping CCEs;

The maximum number of the i-th non-overlapping CCE of the first type is limited by the maximum number of the sixth non-overlapping CCE and the maximum number of the seventh non-overlapping CCE, i={1,...,N};

The maximum number of the fifth non-overlapping CCEs is a 4 times the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell, and a 4 is the first information in the first information Carrier scheduling factor or cross-carrier scheduling factor;

The maximum number of the sixth non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to the subcarrier spacing of all the M cells The number of districts is determined;

The maximum number of the seventh non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The method according to any one of claims 14-25, wherein the M cells are cells under carrier aggregation.
A physical downlink control channel monitoring device is characterized in that it comprises:

An obtaining unit, configured to obtain first information, the first information is used to determine the maximum number of physical downlink control channel PDCCH candidates of the scheduled cell among the M cells within a time unit and/or non- The maximum number of overlapping channel control elements CCE is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling indicates the physical downlink control information carried by the PDCCH sent on the scheduling cell among the M cells DCI schedules data transmission in multiple scheduled cells, and M is an integer greater than 1;

A monitoring unit, configured to perform PDCCH monitoring according to the maximum number limitation of the PDCCH candidates and/or the maximum number limitation of the non-overlapping CCEs.
The device according to claim 27, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell make a determination;

The limit on the maximum number of non-overlapping CCEs is determined according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell;

The scheduling type supported by the scheduled cell includes: the scheduled cell only supports the multi-carrier scheduling, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling.
The device according to claim 28, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of PDCCH candidates includes a maximum number of first-type PDCCH candidates , the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The device according to claim 29, wherein the limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of first PDCCH candidates and the maximum number of second PDCCH candidates;

The maximum number of the first PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier interval of the scheduling cell;

The maximum number of the second PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The device according to claim 28, wherein the limit on the maximum number of non-overlapping CCEs is based on the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the first type The limit on the number of non-overlapping CCEs of the first type corresponds to the multi-carrier scheduling.
The device according to claim 31, wherein the limit on the maximum number of non-overlapping CCEs of the first type is determined by the maximum number of first non-overlapping CCEs and the maximum number of second non-overlapping CCEs;

The maximum number of the first non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of the second non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The device according to claim 28, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of PDCCH candidates includes a maximum number of second-type PDCCH candidates and a maximum number of N first-type PDCCH candidates, and the maximum number of second-type PDCCH candidates corresponds to the maximum number of PDCCH candidates. Referring to self-carrier scheduling or cross-carrier scheduling, the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The device according to claim 33, wherein the maximum number limit of the second type of PDCCH candidates is a1 times of the maximum number limit of the first PDCCH candidates, and a1 is the self in the first information Carrier scheduling factor or cross-carrier scheduling factor;

The i-th limit on the maximum number of PDCCH candidates of the first type is the limit on the maximum number of the first PDCCH candidates times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first PDCCH candidate is determined by the maximum number of the third PDCCH candidate and the maximum number of the fourth PDCCH candidate;

The maximum number of the third PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the three PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The device according to claim 33, wherein the limit on the maximum number of PDCCH candidates of the second type is determined by the maximum number of fifth PDCCH candidates and the maximum number of sixth PDCCH candidates;

The i-th limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of the sixth PDCCH candidates and the maximum number of the seventh PDCCH candidates, i={1,...,N};

The maximum number of the fifth PDCCH candidates is a3 times the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier interval of the scheduled cell, and a3 is the self-carrier scheduling factor in the first information or cross-carrier scheduling factor;

The maximum number of sixth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of fifth PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined;

The maximum number of the seventh PDCCH candidates is the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier interval of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The device according to claim 28, wherein the limit on the maximum number of non-overlapping CCEs is based on the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the second type and a maximum number of N non-overlapping CCEs of the first type. The maximum number of non-overlapping CCEs of the second type The number limit corresponds to the self-carrier scheduling or cross-carrier scheduling, and the maximum number limit of the first type of non-overlapping CCEs corresponds to the multi-carrier scheduling.
The device according to claim 36, wherein the maximum number limit of the second type of non-overlapping CCEs is a2 times the maximum number limit of the first non-overlapping CCEs, and a2 is the maximum number limit in the first information self-carrier scheduling factor or cross-carrier scheduling factor;

The i-th limit on the maximum number of non-overlapping CCEs of the first type is the maximum number of the first non-overlapping CCEs times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first non-overlapping CCE is determined by the maximum number of the third non-overlapping CCE and the maximum number of the fourth non-overlapping CCE;

The maximum number of the third non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth non-overlapping CCE, the PDCCH monitoring capability reported by the terminal device, the maximum number of the third non-overlapping CCE, the number of cells corresponding to the subcarrier spacing of the scheduled cell, The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The device according to claim 36, wherein the limit on the maximum number of non-overlapping CCEs of the second type is determined by the maximum number of fifth non-overlapping CCEs and the maximum number of sixth non-overlapping CCEs;

The maximum number of the i-th non-overlapping CCE of the first type is limited by the maximum number of the sixth non-overlapping CCE and the maximum number of the seventh non-overlapping CCE, i={1,...,N};

The maximum number of fifth non-overlapping CCEs is a4 times the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell, where a4 is the self-carrier scheduling in the first information factor or cross-carrier scheduling factor;

The maximum number of the sixth non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to the subcarrier spacing of all the M cells The number of districts is determined;

The maximum number of the seventh non-overlapping CCEs is the non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell the maximum number of times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The device according to any one of claims 27-38, wherein the M cells are cells under carrier aggregation.
A physical downlink control channel monitoring device is characterized in that it comprises:

A sending unit, configured to send first information, where the first information is used to determine the maximum number limit and/or non-overlapping of physical downlink control channel PDCCH candidates of the scheduled cell among the M cells within the time unit of the terminal device The maximum number of channel control elements CCE is limited, the scheduled cell is a cell that supports multi-carrier scheduling, and the multi-carrier scheduling indicates the physical downlink control information DCI carried by the PDCCH sent on the scheduling cell among the M cells Scheduling data transmission in multiple scheduled cells, M is an integer greater than 1, and the maximum number of PDCCH candidates and/or the maximum number of non-overlapping CCEs are used for PDCCH monitoring.
The device according to claim 40, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell make a determination;

The limit on the maximum number of non-overlapping CCEs is determined according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell;

The scheduling type supported by the scheduled cell includes: the scheduled cell only supports the multi-carrier scheduling, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling.
The device according to claim 41, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of PDCCH candidates includes a maximum number of first-type PDCCH candidates , the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The device according to claim 42, wherein the maximum number of PDCCH candidates of the first type is limited by the maximum number of first PDCCH candidates and the maximum number of second PDCCH candidates;

The maximum number of the first PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier interval of the scheduling cell;

The maximum number of the second PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The device according to claim 41, wherein the limit on the maximum number of non-overlapping CCEs is based on the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by one of the scheduling cells, and the scheduled cell only supports the multi-carrier scheduling, the maximum number of non-overlapping CCEs includes a maximum number of non-overlapping CCEs of the first type The limit on the number of non-overlapping CCEs of the first type corresponds to the multi-carrier scheduling.
The device according to claim 44, wherein the limit on the maximum number of non-overlapping CCEs of the first type is determined by the maximum number of first non-overlapping CCEs and the maximum number of second non-overlapping CCEs;

The maximum number of the first non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduling cell;

The maximum number of the second non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the maximum number of the first non-overlapping CCEs, the number of cells corresponding to the subcarrier spacing of the scheduling cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The device according to claim 41, wherein the maximum number of PDCCH candidates is limited according to the number of the scheduling cells scheduled by the scheduled cell and the scheduling type supported by the scheduled cell Make determinations, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The maximum number of PDCCH candidates includes a maximum number of second-type PDCCH candidates and a maximum number of N first-type PDCCH candidates, and the maximum number of second-type PDCCH candidates corresponds to the maximum number of PDCCH candidates. Referring to self-carrier scheduling or cross-carrier scheduling, the limit on the maximum number of PDCCH candidates of the first type corresponds to the multi-carrier scheduling.
The device according to claim 46, characterized in that the maximum number limit of the second type of PDCCH candidates is a1 times the maximum number limit of the first PDCCH candidates, and a1 is the self in the first information Carrier scheduling factor or cross-carrier scheduling factor;

The i-th limit on the maximum number of PDCCH candidates of the first type is the limit on the maximum number of the first PDCCH candidates times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first PDCCH candidate is determined by the maximum number of the third PDCCH candidate and the maximum number of the fourth PDCCH candidate;

The maximum number of the third PDCCH candidates is the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of the three PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the M The number of cells corresponding to all subcarrier intervals in a cell is determined.
The device according to claim 46, wherein the maximum number of PDCCH candidates of the second type is limited by the maximum number of fifth PDCCH candidates and the maximum number of sixth PDCCH candidates;

The i-th limit on the maximum number of PDCCH candidates of the first type is determined by the maximum number of the sixth PDCCH candidates and the maximum number of the seventh PDCCH candidates, i={1,...,N};

The maximum number of the fifth PDCCH candidates is a3 times the maximum number of monitored PDCCH candidates in the time unit corresponding to the subcarrier interval of the scheduled cell, and a3 is the self-carrier scheduling factor in the first information or cross-carrier scheduling factor;

The maximum number of sixth PDCCH candidates, the PDCCH monitoring capability reported by the terminal device, the maximum number of fifth PDCCH candidates, the number of cells corresponding to the subcarrier spacing of the scheduled cell, the The number of cells corresponding to all subcarrier intervals in the M cells is determined;

The maximum number of the seventh PDCCH candidates is the maximum number of PDCCH candidates monitored in the time unit corresponding to the subcarrier interval of the scheduled cell times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The device according to claim 41, wherein the limit on the maximum number of non-overlapping CCEs is based on the number of the scheduling cells scheduled by the scheduled cell and the scheduling supported by the scheduled cell Types are determined, including:

If the scheduled cell is scheduled by N scheduling cells, N is an integer greater than or equal to 1, and the scheduled cell supports both the multi-carrier scheduling and self-carrier scheduling or cross-carrier scheduling, then

The limit on the maximum number of non-overlapping CCEs includes a limit on the maximum number of non-overlapping CCEs of the second type and a limit on the maximum number of N non-overlapping CCEs of the first type. The maximum number of non-overlapping CCEs of the second type The number limit corresponds to the self-carrier scheduling or cross-carrier scheduling, and the maximum number limit of the first type of non-overlapping CCEs corresponds to the multi-carrier scheduling.
The device according to claim 49, wherein the maximum number limit of the second type of non-overlapping CCE is a 2 times the maximum number limit of the first non-overlapping CCE, and a 2 is the first Self-carrier scheduling factor or cross-carrier scheduling factor in the information;

The i-th limit on the maximum number of non-overlapping CCEs of the first type is the maximum number of the first non-overlapping CCEs times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and

The maximum number limit of the first non-overlapping CCE is determined by the maximum number of the third non-overlapping CCE and the maximum number of the fourth non-overlapping CCE;

The maximum number of the third non-overlapping CCEs is the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell;

The maximum number of the fourth non-overlapping CCE, the PDCCH monitoring capability reported by the terminal device, the maximum number of the third non-overlapping CCE, the number of cells corresponding to the subcarrier spacing of the scheduled cell, The number of cells corresponding to all subcarrier intervals in the M cells is determined.
The device according to claim 46, wherein the limit on the maximum number of non-overlapping CCEs of the second type is determined by the maximum number of fifth non-overlapping CCEs and the maximum number of sixth non-overlapping CCEs;

The maximum number of the i-th non-overlapping CCE of the first type is limited by the maximum number of the sixth non-overlapping CCE and the maximum number of the seventh non-overlapping CCE, i={1,...,N};

The maximum number of the fifth non-overlapping CCEs is a 4 times the maximum number of non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell, and a 4 is the first information in the first information Carrier scheduling factor or cross-carrier scheduling factor;

The maximum number of the sixth non-overlapping CCEs, the PDCCH monitoring capability reported by the terminal device, the number of cells corresponding to the subcarrier spacing of the scheduled cell, and the number of cells corresponding to the subcarrier spacing of all the M cells The number of districts is determined;

The maximum number of the seventh non-overlapping CCEs is the non-overlapping CCEs in the time unit corresponding to the subcarrier spacing of the scheduled cell the maximum number of times, is the multi-carrier scheduling factor of the ith scheduling cell in the first information, and
The device according to any one of claims 40-51, wherein the M cells are cells under carrier aggregation.
A terminal device, comprising a processor, a memory, and a computer program or instruction stored on the memory, wherein the processor executes the computer program or instruction to implement any one of claims 1-13 steps of the method described above.
A network device, comprising a processor, a memory, and a computer program or instruction stored on the memory, wherein the processor executes the computer program or instruction to implement any one of claims 14-26 steps of the method described above.
A chip, comprising a processor, wherein the processor executes the steps of the method according to any one of claims 1-13 or 14-26.
A computer-readable storage medium, characterized in that it stores computer programs or instructions, and when the computer programs or instructions are executed, the steps of the method described in any one of claims 1-13 or 14-26 are implemented.