WO2023010340A1 - Method and apparatus for allocating physical downlink control channel monitoring capabilities for multiple cells - Google Patents

Abstract

Embodiments of the present application provide a method and apparatus for allocating physical downlink control channel monitoring capabilities for multiple cells. The method comprises: a terminal device receives the number of downlink cells related to a subcarrier spacing configured by a network device; and determining, according to the number of the downlink cells and for cells of the subcarrier spacing, a maximum monitoring number of physical downlink control channel candidates and a maximum number of non-overlapping control channel elements when monitoring physical downlink control channels by using a slot group.

Description

Method and device for allocating monitoring capability of multi-cell physical downlink control channel technical field

The embodiment of the present application relates to the technical field of communications.

Background technique

A network device (such as a base station) sends a control command on a Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel), and a user equipment (UE, User Equipment) needs to monitor the PDCCH in a corresponding cell. The set composed of various possibilities for user equipment to blindly detect PDCCH is called a search space, and the time-frequency resource for user equipment to blindly detect PDCCH on a channel is called a control resource set (coreset, control-resource set).

It is determined by the user equipment's own capability to monitor the PDCCH on a coreset. In a time slot (slot) of a serving cell, the PDCCH monitoring capability is described by the two indicators of the maximum number of blind detection times (that is, the maximum number of PDCCH monitoring) and the maximum number of non-overlapping control channel elements (CCE, Control Channel Element) . Among them, the resource granularity of PDCCH is CCE, a CCE is composed of 6 resource element groups (REG, Resource Element Group), and a REG is composed of 12 consecutive resource elements (RE, Resource Element).

Both the maximum number of blind detection times and the maximum number of non-overlapping CCEs are calculated specific to a time unit (such as a time slot slot) of a cell, and they decrease as the sub-carrier spacing (SCS, Sub-Carrier Spacing) increases. Small. When a user equipment is capable of monitoring PDCCHs of multiple downlink serving cells, its monitoring capability needs to be allocated to each cell.

It should be noted that the above introduction to the technical background is only for the convenience of a clear and complete description of the technical solutions of the present application, and for the convenience of those skilled in the art to understand, and it cannot be done just because these solutions are included in the background technology part of the application. For the sake of elaboration, it is considered that the above technical solutions are well known to those skilled in the art.

Contents of the invention

However, the inventor found that: Rel-17 is studying the waveform and channel access design of 52.6GHz-71GHz (FR 2-2), and the influence of phase noise in this frequency band is very serious. In order to solve this problem, it is currently agreed that the subcarrier spacing needs to be increased to reduce the influence of phase noise. If the PDCCH monitoring capability continues to be calculated according to the slot (slot), the terminal equipment cannot work normally.

To address at least one of the above problems, embodiments of the present application provide a method and device for allocating physical downlink control channel (PDCCH) monitoring capabilities of multiple cells. The PDCCH monitoring capability is calculated by slot group, and when the terminal device simultaneously monitors the PDCCHs of multiple downlink serving cells, the PDCCH monitoring capability is assigned to the serving cell corresponding to each subcarrier interval.

According to an aspect of an embodiment of the present application, a method for allocating multi-cell PDCCH monitoring capabilities is provided, including:

The terminal device receives the number of downlink cells related to the subcarrier spacing configured by the network device; and

determining the maximum number of physical downlink control channel candidates to monitor and the maximum number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups according to the number of downlink cells for the cells with the subcarrier spacing.

According to another aspect of the embodiments of the present application, an apparatus for allocating multi-cell PDCCH monitoring capabilities is provided, including:

a receiving unit, which receives the number of downlink cells related to the subcarrier spacing configured by the network device; and

A determination unit, which determines the maximum monitored number of physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier interval according to the number of downlink cells.

According to another aspect of the embodiments of the present application, a method for allocating multi-cell PDCCH monitoring capabilities is provided, including:

The network device sends the number of downlink cells related to the subcarrier spacing to the terminal device;

Wherein, the number of downlink cells is used by the terminal device to determine the maximum monitoring number of physical downlink control channel candidates and the number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier spacing maximum number.

According to another aspect of the embodiments of the present application, an apparatus for allocating multi-cell PDCCH monitoring capabilities is provided, including:

A sending unit, which sends the number of downlink cells related to the subcarrier spacing to the terminal device;

Wherein, the number of downlink cells is used by the terminal device to determine the maximum monitoring number of physical downlink control channel candidates and the number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier spacing maximum number.

According to another aspect of the embodiments of the present application, a communication system is provided, including:

A network device, which sends the number of downlink cells related to the subcarrier spacing;

The terminal device determines, according to the number of downlink cells, the maximum number of monitored physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when the physical downlink control channel is monitored in time slot groups for the cell with the subcarrier spacing.

One of the beneficial effects of the embodiment of the present application is that the terminal device calculates the PDCCH monitoring capability by slot group, and can allocate PDCCH to the serving cell corresponding to each subcarrier interval when monitoring the PDCCH of multiple downlink serving cells at the same time monitoring capabilities.

With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not limited thereby in scope. Embodiments of the present application encompass many changes, modifications and equivalents within the spirit and scope of the appended claims.

Features described and/or illustrated with respect to one embodiment can be used in the same or similar manner in one or more other embodiments, in combination with, or instead of features in other embodiments .

It should be emphasized that the term "comprising/comprising" when used herein refers to the presence of a feature, integer, step or component, but does not exclude the presence or addition of one or more other features, integers, steps or components.

Description of drawings

Elements and features described in one drawing or one embodiment of an embodiment of the present application may be combined with elements and features shown in one or more other drawings or embodiments. Furthermore, in the drawings, like numerals indicate corresponding parts in the several figures and may be used to indicate corresponding parts used in more than one embodiment.

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

Fig. 2 is a schematic diagram of the time slot length of multiple subcarrier intervals according to the embodiment of the present application;

FIG. 3 is a schematic diagram of a method for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application;

FIG. 4 is an example diagram of a time slot group according to an embodiment of the present application;

Fig. 5 is another example figure of the timeslot group of the embodiment of the present application;

FIG. 6 is another schematic diagram of a method for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a device for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application;

FIG. 8 is another schematic diagram of an apparatus for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application;

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

FIG. 10 is a schematic diagram of a terminal device according to an embodiment of the present application.

Detailed ways

The foregoing and other features of the present application will become apparent from the following description, taken with reference to the accompanying drawings. In the specification and drawings, specific embodiments of the present application are specifically disclosed, which indicate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments, on the contrary, the present application The application includes all amendments, variations and equivalents that come within the scope of the appended claims.

In this embodiment of the application, the terms "first", "second", etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, and these elements should not be referred to by these terms restricted. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "comprising", "including", "having" and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

In the embodiments of the present application, the singular forms "a", "the" and the like include plural forms, which should be broadly understood as "one" or "a class" and not limited to the meaning of "one"; in addition, the term "all The above should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "based on" should be understood as "at least in part based on..." and the term "based on" should be understood as "at least in part based on...", unless the context clearly indicates otherwise.

In this embodiment of the application, the term "communication network" or "wireless communication network" may refer to a network conforming to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.

Moreover, the communication between devices in the communication system can be carried out according to any stage of communication protocols, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols that are currently known or will be developed in the future.

In this embodiment of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device. Network equipment may include but not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.

Among them, the base station may include but not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include Remote Radio Head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power nodes (such as femeto, pico, etc.). And the term "base station" may include some or all of their functions, each base station may provide communication coverage for a particular geographic area. The term "cell" can refer to a base station and/or its coverage area depending on the context in which the term is used.

In this embodiment of the application, the term "User Equipment" (UE, User Equipment) or "terminal equipment" (TE, Terminal Equipment or Terminal Device) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc.

Among them, the terminal equipment may include but not limited to the following equipment: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication equipment, handheld equipment, machine-type communication equipment, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.

For another example, in scenarios such as the Internet of Things (IoT, Internet of Things), the terminal device can also be a machine or device for monitoring or measurement, such as but not limited to: a machine type communication (MTC, Machine Type Communication) terminal, Vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, etc.

In addition, the term "network side" or "network device side" refers to one side of the network, which may be a certain base station, or may include one or more network devices as above. The term "user side" or "terminal side" or "terminal device side" refers to a side of a user or a terminal, which may be a certain UE, or may include one or more terminal devices as above. Unless otherwise specified in this article, "device" may refer to network devices or terminal devices.

The following uses examples to illustrate the scenarios of the embodiments of the present application, but the present application is not limited thereto.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a case where a terminal device and a network device are taken as examples. As shown in FIG. 1 , a communication system 100 may include a network device 101 and a terminal device 102 . For simplicity, FIG. 1 only uses one terminal device and one network device as an example for illustration, but this embodiment of the present application is not limited thereto.

In the embodiment of the present application, existing services or services that may be implemented in the future may be sent between the network device 101 and the terminal device 102 . For example, these services may include but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), massive machine type communication (mMTC, massive Machine Type Communication) and highly reliable low-latency communication (URLLC, Ultra-Reliable and Low -Latency Communication), and so on.

As shown in FIG. 1 , a terminal device 102 can be connected to at least two downlink serving cells at the same time. The embodiment of the present application involves a terminal device monitoring PDCCHs of multiple downlink serving cells simultaneously, and each serving cell may have different subcarrier intervals. A terminal device has the ability to monitor PDCCHs on multiple serving cells. This capability corresponds to the number of monitored cells which can be identified as

The terminal equipment allocates monitoring capabilities for each serving cell, and may calculate the PDCCH monitoring capabilities according to the time unit of PDCCH monitoring.

On the one hand, in the subcarrier spacing parameter μ∈{0, 1, 2, 3}, that is, the SCS is 2 ⁰ ×15=15KHz, 2 ¹ ×15=30KHz, 2 ² ×15=60KHz, 2 ³ ×15 =120KHz, the PDCCH monitoring capability can be calculated in units of slots.

The network device will configure a certain number of downlink cells for the terminal device, and the number is expressed as

Among them, μ represents the subcarrier spacing parameter, and "cells,0" represents coreset pool index 0. "cells,1" means coreset pool index 1. If the scheduling cell is monitored for PDCCH candidates on the activated part of the bandwidth (BWP, BandWidth Part), when the subcarrier spacing is μ, it satisfies

- When the situation of multiple transmission and reception points (TRP, Transmission Reception Point) is not considered, the number of blind detections corresponding to a cell with a subcarrier spacing μ cannot exceed the maximum number of blind detections corresponding to the subcarrier spacing μ, that is

For the subcarrier spacing μ, the number of non-overlapping CCEs monitored cannot exceed the maximum value monitored at this time, that is,

- When the serving cell is from the downlink serving cell

When , the maximum value of the blind detection number corresponding to the subcarrier spacing μ, that is

For the subcarrier spacing μ, the number of non-overlapping CCEs monitored cannot exceed the maximum value monitored at this time, that is,

Wherein, γ=R, R={1,2} is reported by the terminal device according to its own capability.

- When CORESETs have the same coresetPoolIndex value, and the serving cell is from the downlink serving cell

When , the maximum number of blind detections corresponding to the subcarrier spacing μ

For the subcarrier spacing μ, the number of non-overlapping CCEs monitored cannot exceed the maximum value monitored at this time, that is,

If the network device configures the number of multiple cells for the terminal device

The maximum number of blind detections of terminal equipment and the maximum number of non-overlapping CCEs are respectively calculated as follows:

Right now,

and

They are respectively calculated in proportion and allocated to the cells of each subcarrier interval.

for belonging to

For the downlink cell, the terminal device does not need to monitor more than

PDCCH candidates, or do not need to monitor more than

Non-overlapping CCEs.

for belonging to

In the downlink cell, the terminal device does not need to monitor more than

PDCCH candidates, or do not need to monitor more than

non-overlapping CCEs. If for CORESETs with the same coresetPoolIndex value, the end device does not need to monitor more than

PDCCH candidates, or more than

Non-overlapping CCEs.

On the other hand, when the subcarrier spacing μ∈{0, 1}, that is, when the SCS is 2 ⁰ ×15=15KHz and 2 ¹ ×15=30KHz respectively, the PDCCH monitoring capability is calculated in units of span. The span is a group of continuous Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbols, and its length can be 2, 4, or 7.

For μ∈{0, 1}, the number of downlink serving cells that the terminal equipment is capable of monitoring is

When the number of serving cells that the terminal equipment needs to monitor satisfies

When , corresponding to the serving cell with the subcarrier spacing μ, the number of PDCCH candidates blindly detected by the terminal equipment cannot exceed

Alternatively, the number of non-overlapping CCEs for blind detection cannot exceed

The terminal equipment monitors the serving cell of PDDCH from

yes

a part of. The span is described as (X, Y), where the minimum interval between the first symbols of every two consecutive spans is X symbols, and the time length of each span is the Y value and the length value of the CORESET configured for the terminal device the maximum value.

When the number of cells configured for terminal equipment to monitor PDCCH exceeds its capacity, that is

, corresponding to the subcarrier spacing μ, span(X,Y), the ability of the terminal device to blindly detect the PDCCH cannot exceed

Or the number of non-overlapping CCEs cannot exceed

The above schematically illustrates the calculation of the PDCCH monitoring capability by using slots and spans.

Rel-17 is studying the waveform and channel access design for 52.6GHz-71GHz (FR 2-2). The phase noise effect is very serious in this frequency band. In order to solve this problem, it is necessary to increase the subcarrier spacing to reduce the influence of phase noise. The ensuing problem is that when the new subcarrier spacing is 480KHz (μ=5) and 960KHz (μ=6), the capability of the terminal equipment is limited. If the PDCCH monitoring capability is calculated in units of slots, the terminal equipment cannot work normally.

For example, when μ=6, the maximum number of non-overlapping CCEs per time slot and per serving cell during blind detection of PDCCH may be less than 16, thus causing the terminal equipment to fail to work normally.

Table 1 is the maximum number of monitored PDCCH candidates per slot for μ ∈ {0, 1, 2, 3}, Table 2 is the maximum number of non-overlapping CCEs per slot for μ ∈ {0, 1, 2, 3}, For details, please refer to the existing standard text 38.213.

Table 1

Table 2

Fig. 2 is a schematic diagram of the time slot lengths of a plurality of subcarrier intervals according to the embodiment of the present application. The time slot lengths are not the same. Calculating the PDCCH monitoring capability based on slot or span as a time unit is no longer suitable for downlink cells with new subcarrier spacing.

In the embodiment of the present application, when the terminal device monitors the downlink cells with the new subcarrier spacing of 480KHz and 960KHz, it calculates the PDCCH monitoring capability according to the slot group as the time unit. The embodiments of the present application are described in detail below.

Embodiments of the first aspect

An embodiment of the present application provides a method for allocating multi-cell PDCCH monitoring capabilities, which is described from a terminal device.

FIG. 3 is a schematic diagram of a method for allocating multi-cell PDCCH monitoring capabilities in an embodiment of the present application. As shown in FIG. 3 , the method includes:

301. The terminal device receives the number of downlink cells related to the subcarrier spacing configured by the network device; and

302. The terminal device determines, according to the number of downlink cells, the maximum number of monitored PDCCH candidates and the maximum number of non-overlapping CCEs when monitoring PDCCHs in time slot groups for cells with the subcarrier spacing.

It should be noted that the above accompanying drawing 3 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, the execution order of various operations can be appropriately adjusted, and some other operations can be added or some of them can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the above description in FIG. 3 .

In some embodiments, the PDCCH monitoring capability may be allocated separately for multiple cells corresponding to the new subcarrier spacing. The subcarrier spacing includes at least one of the following: 480 KHz with a subcarrier spacing parameter μ=5, or 960 KHz with a subcarrier spacing parameter μ=6.

In some embodiments, the terminal device also reports to the network device signaling used to identify that the terminal device is capable of monitoring the physical downlink control channel in a time slot group.

For example, a new signaling r17monitoringcapability may be defined for the terminal equipment, which indicates that the terminal equipment is capable of monitoring the PDCCH with slot-group as the time unit. Define the number of PDCCH cells monitored by the terminal equipment in the slot-group mode as

For another example, a slot group is described by (X, Y), where Y is the length of the slot group, and X is the interval between two adjacent slot groups.

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is less than or equal to the total number of downlink serving cells that the terminal device can monitor PDCCH in time units of time slot groups,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the corresponding The maximum monitored number of physical downlink control channel candidates for the subcarrier spacing and the size of the time slot group; and

A terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to said subcarrier spacing and said slot group size, said total number of non-overlapping control channel elements being equal to said The subcarrier spacing and the maximum number of non-overlapping control channel elements for the slot group size.

Specifically, for example:

is the subcarrier spacing μ and the total number of physical downlink control channel candidates of the slot group sg(X,Y),

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ and time slot group sg(X,Y);

is the subcarrier spacing μ and the total number of non-overlapping control channel elements of the slot group sg(X,Y),

Maximum number of non-overlapping control channel elements for subcarrier spacing μ and slot group sg(X,Y).

In other words, the network device configures the number of downlink cells for the terminal device

When the PDCCH needs to be monitored on the downlink cell, the corresponding number of cells that need to monitor slot group(X,Y) is

if

End devices do not need to monitor more than

PDCCH candidates, or, do not need to monitor more than

non-overlapping CCEs.

Table 3 below provides an expression of the above-mentioned assigned PDCCH monitoring capability, but the present application is not limited thereto.

table 3

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is greater than the total number of downlink serving cells that the terminal device can monitor the PDCCH with a time slot group as a time unit,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates according to the current Subcarrier spacing and the ratio between the number of cells of the physical downlink control channel to be monitored and the number of cells of all physical downlink control channels to be monitored in the current time slot group size corresponds to the subcarrier spacing and the size of the time slot group The monitored number of physical downlink control channel candidates; and

A terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to said subcarrier spacing and said slot group size, said total number of non-overlapping control channel elements being equal to Subcarrier spacing and the ratio between the number of cells of the physical downlink control channel to be monitored and the number of cells of all physical downlink control channels to be monitored in the current time slot group size corresponds to the subcarrier spacing and the size of the time slot group The number of non-overlapping control channel elements.

Specifically, for example:

is the subcarrier spacing μ and the total number of physical downlink control channel candidates of the slot group sg(X,Y),

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ and time slot group sg(X,Y);

is the subcarrier spacing μ and the total number of non-overlapping control channel elements of the slot group sg(X,Y),

is the maximum number of non-overlapping control channel elements for subcarrier spacing μ and slot group sg(X,Y);

It is the total number of downlink serving cells that the terminal equipment is capable of monitoring the PDCCH with the time slot group as the time unit.

In other words, when

When , the terminal equipment allocates the PDCCH monitoring capability in proportion to multiple cells with different subcarrier intervals. Specifically, end devices do not need to monitor more than

PDCCH candidates, or do not need to monitor more than

of non-overlapping CCEs. The time unit applied is

Each slot-group of each active BWP in each scheduling cell.

For any slot-group (X, Y) value, the PDCCH monitoring capability cannot be greater than the minimum value of the blind detection capability at this time. That is, the monitored number of PDCCH candidates cannot be greater than

And/or, the number of non-overlapping CCEs cannot be greater than

Table 4 below provides an expression of the above-mentioned assigned PDCCH monitoring capability, but the present application is not limited thereto.

Table 4

In some embodiments, the time slot group includes an integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and the first symbols of two adjacent time slot groups are separated by X time slots, where both X and Y are integers.

Fig. 4 is an exemplary diagram of a time slot group according to an embodiment of the present application. As shown in FIG. 4, the slot group may include 16 slots.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the maximum monitored number of physical downlink control channel candidates with reference subcarrier spacing calculated on a proportional basis;

The maximum number of non-overlapping control channel elements for 480 KHz with subcarrier spacing parameter μ=5 or 960 KHz for subcarrier spacing parameter μ=6 is calculated proportionally from the maximum number of non-overlapping control channel elements with reference subcarrier spacing.

The ratio is the ratio between the slot group size of the current subcarrier spacing and the slot size of the reference subcarrier spacing.

In some embodiments, the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or 30KHz with subcarrier spacing parameter μ=1, or subcarrier spacing 15KHz with parameter μ=0.

The following description will be made by taking 120KHz with the subcarrier spacing parameter μ=3 as the reference subcarrier as an example.

For example, for μ={5,6},

and

The value of the control subcarrier spacing is 120KHz

and

The value of is obtained proportionally according to the relationship between the duration of the slot-group and the duration of the slot when the subcarrier interval is 120KHz.

For example, for slot group(X,Y) with a subcarrier spacing of 480KHz, μ=5. Suppose the ratio is

When the slot group size is 4 slots, the 4 slots with a subcarrier spacing of 480KHz are just aligned with a slot with a subcarrier spacing of 120KHz, so

Corresponding to the aforementioned Table 1, when μ=3, the number of monitoring PDCCHs is 20, then

In some embodiments, the time slot group includes a non-integer number of time slots, the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and the first symbols of two adjacent time slot groups X timeslots apart, where X is an integer and Y is a non-integer.

Fig. 5 is another example diagram of a time slot group in the embodiment of the present application. As shown in FIG. 5, the slot group may include 16.5 slots.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the maximum monitored number of physical downlink control channel candidates with reference subcarrier spacing Calculated in proportion and rounded to an integer;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ = 5 or 960KHz with subcarrier spacing parameter μ = 6 is obtained by proportionally calculating the maximum number of non-overlapping control channel elements according to the reference subcarrier spacing and taking an integer .

In some embodiments, the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or 30KHz with subcarrier spacing parameter μ=1, or subcarrier spacing 15KHz with parameter μ=0.

Still taking 120 KHz with the subcarrier spacing parameter μ=3 as the reference subcarrier as an example for illustration.

For example, for μ={5,6},

and

The value of the control subcarrier spacing is 120KHz

and

The value of is calculated according to the relationship between the duration of the slot-group and the duration of the slot when the subcarrier interval is 120KHz, and is rounded to an integer in proportion.

For example, for slot group(X,Y)μ=5 with a subcarrier spacing of 480KHz. Suppose the ratio is

When the slot group size is 4 slots plus 0.5 slots, the 4 slots with a subcarrier spacing of 480KHz are just aligned with a slot with a subcarrier spacing of 120KHz, then

One possible value for is:

Corresponding to the aforementioned Table 1, when μ=3, the number of monitoring PDCCHs is 20, then

In some embodiments, the maximum monitoring number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device.

For example, Table 5 is the maximum number of monitored PDCCH candidates per slot group for μ∈{5,6}, and Table 6 is the maximum number of non-overlapping CCEs per slot group for μ∈{5,6}.

table 5

Table 6

It should be noted that the above Table 5 and Table 6 are only schematically described, but the present application is not limited thereto, for example, other values may be defined according to the size and configuration of the time slot group.

The above embodiments are only illustrative examples of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above various embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be combined.

It can be known from the above embodiments that the terminal device calculates the PDCCH monitoring capability by slot group, and can allocate the PDCCH monitoring capability to the serving cell corresponding to each subcarrier interval when simultaneously monitoring the PDCCH of multiple downlink serving cells.

Embodiments of the second aspect

The embodiment of the present application provides a method for allocating multi-cell PDCCH monitoring capabilities. The description will be continued on the basis of the embodiment of the first aspect, and the same content as the embodiment of the first aspect will not be repeated.

In some embodiments, the PDCCH monitoring capability may be jointly assigned to multiple cells corresponding to the old and new subcarrier intervals. The subcarrier spacing includes at least one of the following: 15KHz with a subcarrier spacing parameter μ=0, 30KHz with a subcarrier spacing parameter μ=1, 60KHz with a subcarrier spacing parameter μ=2, and 120KHz with a subcarrier spacing parameter μ=3 , 240 KHz with a subcarrier spacing parameter μ=4, 480 KHz with a subcarrier spacing parameter μ=5, or 960 KHz with a subcarrier spacing parameter μ=6.

In some embodiments, the terminal device also reports to the network device signaling used to identify that the terminal device is capable of monitoring the physical downlink control channel in a time slot group.

For example, a new signaling r17monitoringcapability may be defined for the terminal equipment, which indicates that the terminal equipment is capable of monitoring the PDCCH with slot-group as the time unit. It is defined that the terminal equipment is capable of monitoring downlink cells in a slot-group manner, and the number of all downlink serving cells that the terminal equipment can monitor is

For another example, a slot group can be described by (X, Y), where Y is the length of the slot group, and X is the interval between the first slots of two consecutive adjacent slot groups.

in

It is the number of all downlink serving cells that the terminal equipment can monitor the PDCCH with slot and slot group as the time unit. The terminal device monitors the number of downlink serving cells of the PDCCH with a slot group as a time unit, which can be indicated to the terminal device through signaling, or the terminal device can be implicitly calculated from the number of subcarrier intervals of the FR2-2 cell.

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is less than or equal to the total number of downlink serving cells that the terminal device can monitor the PDCCH with time slots and time slot groups as time units,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, and the total number of physical downlink control channel candidates is equal to the physical downlink control channel corresponding to the subcarrier spacing the maximum number of monitoring candidates; and

a terminal device is not required to monitor more non-overlapping control channel elements than the number of total non-overlapping control channel elements corresponding to said subcarrier spacing equal to the number of non-overlapping control channel elements corresponding to said subcarrier spacing The maximum number of elements.

Specifically, for example:

is the total number of physical downlink control channel candidates with subcarrier spacing μ,

is the maximum number of physical downlink control channel candidates with subcarrier spacing μ;

is the total number of non-overlapping control channel elements with subcarrier spacing μ,

The maximum number of non-overlapping control channel elements with subcarrier spacing μ.

In other words, when

Similar to the embodiment of the first aspect. In this case, the number of blind detections corresponding to a cell with subcarrier spacing μ cannot exceed the maximum number of blind detections corresponding to the subcarrier spacing μ, or the number of non-overlapping CCEs monitored cannot exceed the maximum value monitored at this time.

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is greater than the total number of downlink serving cells that the terminal device can monitor PDCCH in time units of time slots and time slot groups,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, the total number of physical downlink control channel candidates is equal to The number of monitored physical downlink control channel candidates corresponding to the subcarrier spacing after the proportion allocation between the number of cells of the control channel and the number of cells of all physical downlink control channels to be monitored; and

The terminal device is not required to monitor more non-overlapping control channel elements than the total number of non-overlapping control channel elements corresponding to the subcarrier spacing, the total number of non-overlapping control channel elements is equal to the physical downlink to be monitored with the current subcarrier spacing The ratio between the number of cells of the control channel and the number of cells of all physical downlink control channels to be monitored corresponds to the number of non-overlapping control channel elements in the subcarrier interval after allocation.

Specifically, for example:

is the total number of physical downlink control channel candidates with subcarrier spacing μ,

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ;

is the total number of non-overlapping control channel elements with subcarrier spacing μ,

maximum number of non-overlapping control channel elements with subcarrier spacing μ;

is the total number of PDCCH downlink serving cells that the terminal equipment is capable of monitoring with slot and slot-group as the time unit,

is the number of downlink cells configured by the network device, and α ^μ is the proportional coefficient between the time slot group size of the current subcarrier spacing and the time slot size of the reference subcarrier spacing.

In other words, when the network device configures the number of multiple cells for the terminal device

hour,

and

They are respectively calculated in proportion and allocated to the cells of each subcarrier interval.

For example, in the calculation of the above formula, the calculation starts from the subcarrier spacing parameter μ among multiple subcarrier spacings, where μ=0. That is, the multi-cell PDCCH monitoring capability is calculated starting from 0.

For another example, in the calculation of the above formula, the multiple subcarrier spacings are calculated starting from the subcarrier spacing parameter μ, where μ is an integer greater than 0 and less than 5. That is, the value of μ starts from a certain integer greater than 0 and less than 5, and multi-cell PDCCH monitoring capability is calculated for multi-cell scheduled transmission. At this time, in the above formula corresponding to the set μ′∈{0,1,...,μ-1},

and

value is 0. Thus, considering the value range of μ, the subcarrier spacing span can be reduced, thereby reducing the scheduling burden.

In some embodiments, the time slot group includes an integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and the first of two adjacent time slot groups Symbols are separated by X slots, where X and Y are integers.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the maximum monitored number of physical downlink control channel candidates with reference subcarrier spacing calculated on a proportional basis;

The maximum number of non-overlapping control channel elements for 480 KHz with subcarrier spacing parameter μ=5 or 960 KHz for subcarrier spacing parameter μ=6 is calculated proportionally from the maximum number of non-overlapping control channel elements with reference subcarrier spacing.

For example, the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or 30KHz with subcarrier spacing parameter μ=1, or subcarrier spacing parameter μ=0 15KHz.

In some embodiments, the time slot group includes a non-integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and the first of two adjacent time slot groups symbols are separated by X slots, where X is an integer and Y is a non-integer.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the maximum monitored number of physical downlink control channel candidates with reference subcarrier spacing Calculated in proportion and rounded to an integer;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ = 5 or 960KHz with subcarrier spacing parameter μ = 6 is obtained by proportionally calculating the maximum number of non-overlapping control channel elements according to the reference subcarrier spacing and taking an integer .

For example, the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or 30KHz with subcarrier spacing parameter μ=1, or subcarrier spacing parameter μ=0 15KHz.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device.

The above embodiments are only illustrative examples of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above various embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be combined.

It can be known from the above embodiments that the terminal device calculates the PDCCH monitoring capability by slot group, and can allocate the PDCCH monitoring capability to the serving cell corresponding to each subcarrier interval when simultaneously monitoring the PDCCH of multiple downlink serving cells.

Embodiments of the third aspect

The embodiment of the present application provides a multi-cell PDCCH monitoring capability allocation method, which is described from the side of the network device, and the same content as the first and second embodiments will not be repeated.

FIG. 6 is another schematic diagram of a method for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application. As shown in FIG. 6, the method includes:

601. The network device sends the number of downlink cells related to the subcarrier spacing to the terminal device;

602. The terminal device determines, according to the number of downlink cells, the maximum number of monitored physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when monitoring physical downlink control channels in time slot groups for cells with the subcarrier spacing.

As shown in Figure 6, the method may also include:

600. The network device receives the signaling reported by the terminal device and used to identify that the terminal device is capable of monitoring a physical downlink control channel in a time slot group.

It should be noted that the above accompanying drawing 6 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, the execution order of various operations can be appropriately adjusted, and some other operations can be added or some of them can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the above description in FIG. 6 .

The above embodiments are only illustrative examples of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above various embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be combined.

It can be known from the above embodiments that the terminal device calculates the PDCCH monitoring capability by slot group, and can allocate the PDCCH monitoring capability to the serving cell corresponding to each subcarrier interval when simultaneously monitoring the PDCCH of multiple downlink serving cells.

Embodiments of the fourth aspect

An embodiment of the present application provides a device for allocating multi-cell PDCCH monitoring capabilities. The apparatus may be, for example, a terminal device, or may be one or some components or components configured on the terminal device, and the content that is the same as that in the first and second embodiments will not be repeated here.

FIG. 7 is a schematic diagram of an apparatus for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application. As shown in FIG. 7 , an apparatus 700 for allocating multi-cell PDCCH monitoring capabilities includes:

A receiving unit 701, which receives the number of downlink cells related to the subcarrier spacing configured by the network device; and

The determining unit 702 is configured to determine the maximum number of physical downlink control channel candidates to be monitored and the maximum number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier interval according to the number of downlink cells.

As shown in FIG. 7 , the apparatus 700 for allocating multi-cell PDCCH monitoring capabilities also includes:

A sending unit 703, which reports to the network device the signaling used to identify that the terminal device is capable of monitoring the physical downlink control channel in time slot groups.

In some embodiments, the subcarrier spacing includes at least one of the following: 480 KHz with a subcarrier spacing parameter μ=5, or 960 KHz with a subcarrier spacing parameter μ=6.

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is less than or equal to the total number of downlink serving cells that the terminal device can monitor the PDCCH with a time slot group as a time unit,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the corresponding The maximum monitored number of physical downlink control channel candidates for the subcarrier spacing and the size of the time slot group; and

The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing and the size of the time slot group, said total number of non-overlapping control channel elements being equal to the corresponding The maximum number of non-overlapping control channel elements for the subcarrier spacing and the slot group size.

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is greater than the total number of downlink serving cells that the terminal device can monitor the PDCCH with a time slot group as a time unit,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates according to The ratio between the number of cells of the physical downlink control channel to be monitored with the current subcarrier spacing and the size of the current time slot group and the number of cells of all physical downlink control channels to be monitored corresponds to the subcarrier spacing and the time slot group after allocation The size of the monitored number of physical downlink control channel candidates; and

The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing and the size of the time slot group, said total number of non-overlapping control channel elements being equal to The ratio between the number of cells of the physical downlink control channel to be monitored with the current subcarrier spacing and the size of the current time slot group and the number of cells of all physical downlink control channels to be monitored corresponds to the subcarrier spacing and the time slot group after allocation The size of the number of non-overlapping control channel elements.

In some embodiments, the time slot group includes an integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and the first of two adjacent time slot groups Symbols are separated by X slots, where X and Y are integers.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the maximum monitored number of physical downlink control channel candidates with reference subcarrier spacing calculated on a proportional basis;

The maximum number of non-overlapping control channel elements for 480 KHz with subcarrier spacing parameter μ=5 or 960 KHz for subcarrier spacing parameter μ=6 is calculated proportionally from the maximum number of non-overlapping control channel elements with reference subcarrier spacing.

In some embodiments, the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or 30KHz with subcarrier spacing parameter μ=1, or subcarrier spacing 15KHz with parameter μ=0.

In some embodiments, the time slot group includes a non-integer number of time slots, the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and the first of two adjacent time slot groups symbols are separated by X time slots, where X is an integer and Y is a non-integer.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the maximum monitored number of physical downlink control channel candidates with reference subcarrier spacing Calculated in proportion and rounded to an integer;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ = 5 or 960KHz with subcarrier spacing parameter μ = 6 is obtained by proportionally calculating the maximum number of non-overlapping control channel elements according to the reference subcarrier spacing and taking an integer .

In some embodiments, the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or 30KHz with subcarrier spacing parameter μ=1, or subcarrier spacing 15KHz with parameter μ=0.

In some embodiments, the maximum monitored number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device.

In some embodiments, the subcarrier spacing includes at least one of the following: 15KHz with subcarrier spacing parameter μ=0, 30KHz with subcarrier spacing parameter μ=1, 60KHz with subcarrier spacing parameter μ=2, subcarrier spacing 120KHz with parameter μ=3, 240KHz with subcarrier spacing parameter μ=4, 480KHz with subcarrier spacing parameter μ=5, or 960KHz with subcarrier spacing parameter μ=6.

In some embodiments, the sum of the number of downlink cells of multiple subcarrier intervals configured by the network device is less than or equal to the situation that the terminal device can monitor the total number of downlink serving cells of the PDCCH according to the time unit of time slot and time slot group Down,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, and the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates corresponding to the subcarrier spacing the maximum number of monitors for control channel candidates; and

said terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to said subcarrier spacing equal to the number of non-overlapping control channel elements corresponding to said subcarrier spacing Controls the maximum number of channel elements.

In some embodiments, when the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is greater than the total number of downlink serving cells that the terminal device can monitor PDCCH with time slots and time slot groups as time units,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates to be monitored according to the current subcarrier spacing The number of monitored physical downlink control channel candidates corresponding to the subcarrier spacing after the proportion distribution between the number of cells of the physical downlink control channel and the number of cells of all physical downlink control channels to be monitored; and

The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing equal to The ratio between the number of cells of the physical downlink control channel and the number of cells of all the physical downlink control channels to be monitored corresponds to the number of non-overlapping control channel elements in the subcarrier interval after allocation.

In some embodiments,

is the total number of physical downlink control channel candidates with subcarrier spacing μ,

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ;

is the total number of non-overlapping control channel elements with subcarrier spacing μ,

maximum number of non-overlapping control channel elements with subcarrier spacing μ;

The terminal equipment is capable of monitoring the total number of downlink serving cells of PDCCH according to slot and slot group as time units,

is the number of downlink cells configured by the network device, and α ^μ is the proportional coefficient between the time slot group size of the current subcarrier spacing and the time slot size of the reference subcarrier spacing.

In some embodiments, the multiple subcarrier spacings are calculated starting from a subcarrier spacing parameter μ, where μ=0, or μ is an integer greater than 0 and less than 5.

The above embodiments are only illustrative examples of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above various embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be combined.

It should be noted that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The apparatus 700 for allocating multi-cell PDCCH monitoring capabilities may also include other components or modules, and for the specific content of these components or modules, reference may be made to related technologies.

In addition, for the sake of simplicity, FIG. 7 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.

It can be known from the above embodiments that the terminal device calculates the PDCCH monitoring capability by slot group, and can allocate the PDCCH monitoring capability to the serving cell corresponding to each subcarrier interval when simultaneously monitoring the PDCCH of multiple downlink serving cells.

Embodiments of the fifth aspect

An embodiment of the present application provides a device for allocating multi-cell PDCCH monitoring capabilities. The apparatus may be, for example, a network device, or may be one or some components or components configured on the network device, and the same contents as those in the first to third embodiments will not be repeated here.

FIG. 8 is a schematic diagram of an apparatus for allocating multi-cell PDCCH monitoring capabilities according to an embodiment of the present application. As shown in FIG. 8 , an apparatus 800 for allocating multi-cell PDCCH monitoring capabilities includes:

A sending unit 801, which sends the number of downlink cells related to the subcarrier spacing to the terminal device;

Wherein, the number of downlink cells is used by the terminal device to determine the maximum monitoring number of physical downlink control channel candidates and the number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier spacing maximum number.

As shown in FIG. 8, the apparatus 800 for allocating multi-cell PDCCH monitoring capabilities also includes:

The receiving unit 802 is configured to receive the signaling reported by the terminal device and used to identify that the terminal device is capable of monitoring the physical downlink control channel in a time slot group.

The above embodiments are only illustrative examples of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above various embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be combined.

It should be noted that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The apparatus 800 for allocating multi-cell PDCCH monitoring capabilities may also include other components or modules, and for the specific content of these components or modules, reference may be made to related technologies.

In addition, for the sake of simplicity, FIG. 8 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.

It can be known from the above embodiments that the terminal device calculates the PDCCH monitoring capability by slot group, and can allocate the PDCCH monitoring capability to the serving cell corresponding to each subcarrier interval when simultaneously monitoring the PDCCH of multiple downlink serving cells.

Embodiments of the sixth aspect

The embodiment of the present application also provides a communication system, which can be referred to FIG. 1 , and the same content as the embodiments of the first aspect to the fifth aspect will not be described again.

In some embodiments, the communication system 100 may at least include:

The network device 101, which sends the number of downlink cells related to the subcarrier spacing;

The terminal device 102 determines the maximum monitored number of physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier interval according to the number of downlink cells.

The embodiment of the present application also provides a network device, which may be, for example, a base station, but the present application is not limited thereto, and may be other network devices.

FIG. 9 is a schematic diagram of a network device according to an embodiment of the present application. As shown in FIG. 9 , a network device 900 may include: a processor 910 (such as a central processing unit CPU) and a memory 920 ; the memory 920 is coupled to the processor 910 . The memory 920 can store various data; in addition, it also stores a program 930 for information processing, and executes the program 930 under the control of the processor 910 .

For example, the processor 910 may be configured to execute a program to implement the method for allocating multi-cell PDCCH monitoring capabilities as described in the embodiment of the third aspect. For example, the processor 910 may be configured to perform the following control: send the number of downlink cells related to the subcarrier spacing to the terminal device; wherein, the number of downlink cells is used by the terminal device to determine the number of cells with the subcarrier spacing The maximum number of monitored physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when the time slot group monitors the physical downlink control channel.

In addition, as shown in FIG. 9 , the network device 900 may further include: a transceiver 940 and an antenna 950 ; wherein, the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 900 does not necessarily include all components shown in FIG. 9; in addition, the network device 900 may also include components not shown in FIG. 9, and reference may be made to the prior art.

The embodiment of the present application also provides a terminal device, but the present application is not limited thereto, and may be other devices.

FIG. 10 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 10 , the terminal device 1000 may include a processor 1010 and a memory 1020 ; the memory 1020 stores data and programs, and is coupled to the processor 1010 . It is worth noting that this figure is exemplary; other types of structures may also be used in addition to or instead of this structure to implement telecommunications functions or other functions.

For example, the processor 1010 may be configured to execute a program to implement the method for allocating multi-cell PDCCH monitoring capabilities as described in the first and second embodiments. For example, the processor 1010 may be configured to perform the following control: receive the number of downlink cells related to the subcarrier spacing configured by the network device; The maximum number of monitored physical downlink control channel candidates and the maximum number of non-overlapping control channel elements for control channels.

As shown in FIG. 10 , the terminal device 1000 may further include: a communication module 1030 , an input unit 1040 , a display 1050 , and a power supply 1060 . Wherein, the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the terminal device 1000 does not necessarily include all the components shown in FIG. have technology.

The embodiment of the present application also provides a computer program, wherein when the program is executed in the terminal device, the program enables the terminal device to perform the allocation of multi-cell PDCCH monitoring capabilities described in the embodiments of the first and second aspects method.

The embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables the terminal device to execute the method for allocating multi-cell PDCCH monitoring capabilities described in the embodiments of the first aspect and the second aspect.

An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method for allocating multi-cell PDCCH monitoring capabilities described in the embodiment of the third aspect.

An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method for allocating multi-cell PDCCH monitoring capabilities described in the embodiment of the third aspect.

The above devices and methods in this application can be implemented by hardware, or by combining hardware and software. The present application relates to a computer-readable program that, when executed by a logic component, enables the logic component to realize the above-mentioned device or constituent component, or enables the logic component to realize the above-mentioned various methods or steps. The present application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, and the like.

The method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to each software module or each hardware module of the computer program flow. These software modules may respectively correspond to the steps shown in the figure. These hardware modules, for example, can be realized by solidifying these software modules by using a Field Programmable Gate Array (FPGA).

A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. A storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium, or it can be an integral part of the processor. The processor and storage medium can be located in the ASIC. The software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) adopts a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or large-capacity flash memory device.

One or more of the functional blocks described in the accompanying drawings and/or one or more combinations of the functional blocks can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof. One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors processor, one or more microprocessors in communication with a DSP, or any other such configuration.

The present application has been described above in conjunction with specific implementation manners, but those skilled in the art should be clear that these descriptions are exemplary rather than limiting the protection scope of the present application. Those skilled in the art can make various variations and modifications to this application according to the spirit and principles of this application, and these variations and modifications are also within the scope of this application.

Regarding the implementation manner comprising the above embodiments, the following additional notes are also disclosed:

Supplementary Note 1. A method for distributing multi-cell Physical Downlink Control Channel (PDCCH) monitoring capabilities, comprising:

The terminal device receives the number of downlink cells related to the subcarrier spacing configured by the network device; and

determining the maximum number of physical downlink control channel candidates to monitor and the maximum number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups according to the number of downlink cells for the cells with the subcarrier spacing.

Supplementary Note 2. The method according to Supplementary Note 1, wherein the method further comprises:

The terminal device reports to the network device the signaling used to identify that the terminal device has the ability to monitor the physical downlink control channel with a time slot group.

Supplement 3. The method according to Supplement 1 or 2, wherein the subcarrier spacing includes at least one of the following: 480 KHz with a subcarrier spacing parameter μ=5, or 960 KHz with a subcarrier spacing parameter μ=6.

Supplementary Note 4. The method according to Supplementary Note 3, wherein the method further comprises:

In the case where the sum of the number of downlink cells of multiple subcarrier intervals configured by the network device is less than or equal to the total number of downlink serving cells that the terminal device can monitor the physical downlink control channel by taking the time slot group as a time unit,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the corresponding The maximum monitored number of physical downlink control channel candidates for the subcarrier spacing and the size of the time slot group; and

The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing and the size of the time slot group, said total number of non-overlapping control channel elements being equal to the corresponding The maximum number of non-overlapping control channel elements for the subcarrier spacing and the slot group size.

Additional Note 5. The method according to Additional Note 4, wherein,

is the subcarrier spacing μ and the total number of physical downlink control channel candidates of the slot group sg(X,Y),

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ and time slot group sg(X,Y);

is the subcarrier spacing μ and the total number of non-overlapping control channel elements of the slot group sg(X,Y),

Maximum number of non-overlapping control channel elements for subcarrier spacing μ and slot group sg(X,Y).

Supplementary Note 6. The method according to Supplementary Note 3, wherein the method further comprises:

In the case where the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is greater than the total number of downlink serving cells that the terminal device can monitor the physical downlink control channel in units of time slots,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates according to The ratio between the number of cells of the physical downlink control channel to be monitored with the current subcarrier spacing and the size of the current time slot group and the number of cells of all physical downlink control channels to be monitored corresponds to the subcarrier spacing and the time slot group after allocation The size of the monitored number of physical downlink control channel candidates; and

The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing and the size of the time slot group, said total number of non-overlapping control channel elements being equal to The ratio between the number of cells of the physical downlink control channel to be monitored with the current subcarrier spacing and the size of the current time slot group and the number of cells of all physical downlink control channels to be monitored corresponds to the subcarrier spacing and the time slot group after allocation The size of the number of non-overlapping control channel elements.

Additional note 7. The method according to additional note 6, wherein,

is the subcarrier spacing μ and the total number of physical downlink control channel candidates of the slot group sg(X,Y),

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ and time slot group sg(X,Y);

is the subcarrier spacing μ and the total number of non-overlapping control channel elements of the slot group sg(X,Y),

is the maximum number of non-overlapping control channel elements for subcarrier spacing μ and slot group sg(X,Y);

Indicates that the terminal equipment is capable of monitoring the total number of downlink serving cells of the PDDCH in a slot group manner.

Supplementary Note 8. The method according to Supplementary Notes 3 to 7, wherein the time slot group includes an integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, The first symbols of two adjacent slot groups are separated by X slots, where both X and Y are integers.

Supplement 9. The method according to Supplement 8, wherein the maximum number of physical downlink control channel candidates monitored at 480KHz with a subcarrier spacing parameter μ=5 or at 960KHz with a subcarrier spacing parameter μ=6 is based on the reference subcarrier spacing The maximum number of monitored physical downlink control channel candidates is calculated proportionally;

The maximum number of non-overlapping control channel elements for 480 KHz with subcarrier spacing parameter μ=5 or 960 KHz for subcarrier spacing parameter μ=6 is calculated proportionally from the maximum number of non-overlapping control channel elements with reference subcarrier spacing.

Supplement 10. The method according to Supplement 9, wherein the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or subcarrier spacing parameter μ = 30KHz for 1, or 15KHz for subcarrier spacing parameter μ=0.

Supplementary Note 11. The method according to Supplementary Notes 3 to 7, wherein the time slot group includes a non-integer number of time slots, and the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain , the first symbols of two adjacent time slot groups are separated by X time slots, where X is an integer and Y is a non-integer.

Supplementary Note 12. The method according to Supplementary Note 11, wherein the maximum monitored number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is based on the reference subcarrier spacing The maximum monitored number of physical downlink control channel candidates is calculated in proportion and rounded to an integer;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ = 5 or 960KHz with subcarrier spacing parameter μ = 6 is obtained by proportionally calculating the maximum number of non-overlapping control channel elements according to the reference subcarrier spacing and taking an integer .

Supplement 13. The method according to Supplement 12, wherein the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or subcarrier spacing parameter μ = 30KHz for 1, or 15KHz for subcarrier spacing parameter μ=0.

Supplementary Note 14. The method according to Supplementary Notes 3 to 7, wherein the maximum monitored number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is predefined or pre-configured or determined by said terminal device;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device.

Supplement 15. The method according to Supplement 1 or 2, wherein the subcarrier spacing includes at least one of the following: 15KHz with subcarrier spacing parameter μ=0, 30KHz with subcarrier spacing parameter μ=1, subcarrier spacing 60KHz with spacing parameter μ=2, 120KHz with subcarrier spacing parameter μ=3, 240KHz with subcarrier spacing parameter μ=4, 480KHz with subcarrier spacing parameter μ=5, or 960KHz with subcarrier spacing parameter μ=6.

Supplementary Note 16. The method according to Supplementary Note 15, wherein the method further comprises:

In the case where the sum of the number of downlink cells with multiple subcarrier intervals configured by the network device is less than or equal to the total number of downlink serving cells that the terminal device can monitor the physical downlink control channel in units of time slots and time slot groups ,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, and the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates corresponding to the subcarrier spacing the maximum number of monitors for control channel candidates; and

said terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to said subcarrier spacing equal to the number of non-overlapping control channel elements corresponding to said subcarrier spacing Controls the maximum number of channel elements.

Supplementary Note 17. The method according to Supplementary Note 16, wherein,

is the total number of physical downlink control channel candidates with subcarrier spacing μ,

is the maximum number of physical downlink control channel candidates with subcarrier spacing μ;

is the total number of non-overlapping control channel elements with subcarrier spacing μ,

The maximum number of non-overlapping control channel elements with subcarrier spacing μ.

Supplement 18. The method according to Supplement 15, wherein the method further comprises:

When the sum of the number of downlink cells configured by the network device is greater than the total number of downlink serving cells that the terminal device can monitor the physical downlink control channel in time units of time slots and time slot groups,

The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates to be monitored according to the current subcarrier spacing The number of monitored physical downlink control channel candidates corresponding to the subcarrier spacing after the proportion distribution between the number of cells of the physical downlink control channel and the number of cells of all physical downlink control channels to be monitored; and

The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing equal to The ratio between the number of cells of the physical downlink control channel and the number of cells of all the physical downlink control channels to be monitored corresponds to the number of non-overlapping control channel elements in the subcarrier interval after allocation.

Supplementary Note 19. The method according to Supplementary Note 18, wherein,

is the total number of physical downlink control channel candidates with subcarrier spacing μ,

is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ;

is the total number of non-overlapping control channel elements with subcarrier spacing μ,

maximum number of non-overlapping control channel elements with subcarrier spacing μ;

is the total number of downlink serving cells that the terminal equipment has the ability to monitor PDCCH in time slots and time slot groups,

The number of downlink cells configured for the network device, α ^μ is a proportional coefficient between the time slot group size of the current subcarrier spacing and the time slot size of the reference subcarrier spacing.

Supplementary Note 20. The method according to Supplementary Note 18, wherein the multiple subcarrier spacings are calculated starting from a subcarrier spacing parameter μ, where μ=0, or μ is an integer greater than 0 and less than 5.

Supplementary Note 21. The method according to Supplementary Notes 15 to 20, wherein the time slot group includes an integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, The first symbols of two adjacent slot groups are separated by X slots, where X and Y are integers.

Supplementary Note 22. The method according to Supplementary Note 21, wherein the maximum monitored number of physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the reference subcarrier spacing The maximum number of monitored physical downlink control channel candidates is calculated proportionally;

The maximum number of non-overlapping control channel elements for 480 KHz with subcarrier spacing parameter μ=5 or 960 KHz for subcarrier spacing parameter μ=6 is calculated proportionally from the maximum number of non-overlapping control channel elements with reference subcarrier spacing.

Supplement 23. The method according to Supplement 22, wherein the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or subcarrier spacing parameter μ = 30KHz for 1, or 15KHz for subcarrier spacing parameter μ=0.

Supplementary Note 24. The method according to Supplementary Notes 15 to 20, wherein the time slot group includes a non-integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain , the first symbols of two adjacent time slot groups are separated by X time slots, where X is an integer and Y is a non-integer.

Supplementary Note 25. The method according to Supplementary Note 24, wherein the maximum monitored number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is based on the reference subcarrier spacing The maximum monitored number of physical downlink control channel candidates is calculated in proportion and rounded to an integer;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ = 5 or 960KHz with subcarrier spacing parameter μ = 6 is obtained by proportionally calculating the maximum number of non-overlapping control channel elements according to the reference subcarrier spacing and taking an integer .

Supplement 26. The method according to Supplement 25, wherein the reference subcarrier spacing includes: 120KHz with subcarrier spacing parameter μ=3, or 60KHz with subcarrier spacing parameter μ=2, or subcarrier spacing parameter μ = 30KHz for 1, or 15KHz for subcarrier spacing parameter μ=0.

Supplementary Note 27. The method according to Supplementary Notes 15 to 20, wherein the maximum monitored number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is predefined or pre-configured or determined by said terminal device;

The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device.

Supplementary Note 28. A method for distributing monitoring capabilities of a multi-cell Physical Downlink Control Channel (PDCCH), comprising:

The network device sends the number of downlink cells related to the subcarrier spacing to the terminal device;

Wherein, the number of downlink cells is used by the terminal device to determine the maximum monitoring number of physical downlink control channel candidates and the number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier spacing maximum number.

Supplement 29. The method according to Supplement 28, wherein the method further comprises:

The network device receives the signaling reported by the terminal device for identifying that the terminal device is capable of monitoring the physical downlink control channel in a time slot group.

Supplementary Note 30. A terminal device, including a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to implement the multiple functions described in any one of Supplementary Notes 1 to 27. A method for allocating cell physical downlink control channel (PDCCH) monitoring capabilities.

Supplement 31. A network device, including a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to realize the multi-cell physical downlink as described in Supplement 28 or 29 Allocation method of control channel (PDCCH) monitoring capability.

Claims (20)

1. A device for distributing the monitoring capability of a multi-cell physical downlink control channel, comprising:

   a receiving unit, which receives the number of downlink cells related to the subcarrier spacing configured by the network device; and

   A determination unit, which determines the maximum monitored number of physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier interval according to the number of downlink cells.
2. The device according to claim 1, wherein the device further comprises:

   A sending unit, which reports to the network device the signaling used to identify that the terminal device is capable of monitoring the physical downlink control channel in a time slot group.
3. The apparatus according to claim 1, wherein the subcarrier spacing includes at least one of the following: 480 KHz with a subcarrier spacing parameter μ=5, or 960 KHz with a subcarrier spacing parameter μ=6.
4. The device according to claim 3, wherein the sum of the number of downlink cells configured at multiple subcarrier intervals configured by the network device is less than or equal to the downlink service that the terminal device can monitor the physical downlink control channel according to the time unit of the time slot group In the case of the total number of cells,

   The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the corresponding The maximum monitored number of physical downlink control channel candidates for the subcarrier spacing and the size of the time slot group; and

   The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing and the size of the time slot group, said total number of non-overlapping control channel elements being equal to the corresponding The maximum number of non-overlapping control channel elements for the subcarrier spacing and the slot group size.
5. The apparatus according to claim 3, wherein the sum of the numbers of downlink cells configured at multiple subcarrier intervals configured by the network device is greater than the number of downlink serving cells that the terminal device can monitor the physical downlink control channel according to the time unit of the time slot group In the total number of cases,

   The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing and the size of the time slot group, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates according to The ratio between the number of cells of the physical downlink control channel to be monitored with the current subcarrier spacing and the size of the current time slot group and the number of cells of all physical downlink control channels to be monitored corresponds to the subcarrier spacing and the time slot group after allocation The size of the monitored number of physical downlink control channel candidates; and

   The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing and the size of the time slot group, said total number of non-overlapping control channel elements being equal to The ratio between the number of cells of the physical downlink control channel to be monitored with the current subcarrier spacing and the size of the current time slot group and the number of cells of all physical downlink control channels to be monitored corresponds to the subcarrier spacing and the time slot group after allocation The size of the number of non-overlapping control channel elements.
6. The device according to claim 3, wherein the time slot group includes an integer number of time slots; the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and two adjacent time slots The first symbols of a group are X slots apart, where X and Y are both integers.
7. The device according to claim 6, wherein the maximum number of physical downlink control channel candidates for 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is based on the physical downlink control channel with reference subcarrier spacing The maximum monitoring number of candidates is calculated proportionally;

   The maximum number of non-overlapping control channel elements for 480 KHz with subcarrier spacing parameter μ=5 or 960 KHz for subcarrier spacing parameter μ=6 is calculated proportionally from the maximum number of non-overlapping control channel elements with reference subcarrier spacing.
8. The apparatus according to claim 7, wherein the reference subcarrier spacing includes: 120KHz with a subcarrier spacing parameter μ=3, or 60KHz with a subcarrier spacing parameter μ=2, or 30KHz with a subcarrier spacing parameter μ=1 , or 15 KHz with the subcarrier spacing parameter μ=0.
9. The device according to claim 3, wherein the time slot group includes a non-integer number of time slots, the time slot group sg(X, Y) is a set of Y consecutive time slots in the time domain, and two adjacent time slots The first symbols of the slot group are separated by X slots, where X is an integer and Y is a non-integer.
10. The device according to claim 9, wherein the maximum number of monitored physical downlink control channel candidates of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is based on the physical downlink control channel of the reference subcarrier spacing The maximum monitoring number of candidates is calculated proportionally and rounded to an integer;

    The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ = 5 or 960KHz with subcarrier spacing parameter μ = 6 is obtained by proportionally calculating the maximum number of non-overlapping control channel elements according to the reference subcarrier spacing and taking an integer .
11. The apparatus according to claim 10, wherein the reference subcarrier spacing includes: 120KHz with a subcarrier spacing parameter μ=3, or 60KHz with a subcarrier spacing parameter μ=2, or 30KHz with a subcarrier spacing parameter μ=1 , or 15 KHz with the subcarrier spacing parameter μ=0.
12. The device according to claim 3, wherein the maximum monitoring number of physical downlink control channel candidates of 480KHz with a subcarrier spacing parameter μ=5 or 960KHz with a subcarrier spacing parameter μ=6 is predefined or preconfigured or is specified by the Terminal equipment determination;

    The maximum number of non-overlapping control channel elements of 480KHz with subcarrier spacing parameter μ=5 or 960KHz with subcarrier spacing parameter μ=6 is predefined or preconfigured or determined by the terminal device.
13. The device according to claim 1, wherein the subcarrier spacing includes at least one of the following: 15KHz with a subcarrier spacing parameter μ=0, 30KHz with a subcarrier spacing parameter μ=1, and 30KHz with a subcarrier spacing parameter μ=2 60KHz, 120KHz with subcarrier spacing parameter μ=3, 240KHz with subcarrier spacing parameter μ=4, 480KHz with subcarrier spacing parameter μ=5, or 960KHz with subcarrier spacing parameter μ=6.
14. The apparatus according to claim 13, wherein the sum of the number of downlink cells configured at multiple subcarrier intervals configured by the network device is less than or equal to that the terminal device can monitor the physical downlink control channel by taking time slots and time slot groups as time units In the case of the total number of downlink serving cells,

    The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, and the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates corresponding to the subcarrier spacing the maximum number of monitors for control channel candidates; and

    said terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to said subcarrier spacing equal to the number of non-overlapping control channel elements corresponding to said subcarrier spacing Controls the maximum number of channel elements.
15. The device according to claim 13, wherein the sum of the number of downlink cells configured at multiple subcarrier intervals configured by the network device is greater than the downlink number of the physical downlink control channel that the terminal device can monitor in time units of time slots and time slot groups In the case of the total number of serving cells,

    The terminal device is not required to monitor more physical downlink control channel candidates than the total number of physical downlink control channel candidates corresponding to the subcarrier spacing, the total number of physical downlink control channel candidates is equal to the number of physical downlink control channel candidates to be monitored according to the current subcarrier spacing The number of monitored physical downlink control channel candidates corresponding to the subcarrier spacing after the proportion distribution between the number of cells of the physical downlink control channel and the number of cells of all physical downlink control channels to be monitored; and

    The terminal device is not required to monitor more non-overlapping control channel elements than a total number of non-overlapping control channel elements corresponding to the subcarrier spacing equal to The ratio between the number of cells of the physical downlink control channel and the number of cells of all the physical downlink control channels to be monitored corresponds to the number of non-overlapping control channel elements in the subcarrier interval after allocation.
16. The apparatus of claim 15, wherein,

    

    

    

    is the total number of physical downlink control channel candidates with subcarrier spacing μ,

    

    is the maximum monitored number of physical downlink control channel candidates with subcarrier spacing μ;

    

    is the total number of non-overlapping control channel elements with subcarrier spacing μ,

    

    maximum number of non-overlapping control channel elements with subcarrier spacing μ;

    

    is the total number of downlink serving cells that the terminal equipment has the ability to monitor the physical downlink control channel in time slots and time slot groups,

    

    is the number of downlink cells configured by the network device, and α ^μ is the proportional coefficient between the time slot group size of the current subcarrier spacing and the time slot size of the reference subcarrier spacing.
17. The apparatus according to claim 16, wherein the multiple subcarrier spacings are calculated starting from a subcarrier spacing parameter μ, where μ=0, or μ is an integer greater than 0 and less than 5.
18. A device for distributing the monitoring capability of a multi-cell physical downlink control channel, comprising:

    A sending unit, which sends the number of downlink cells related to the subcarrier spacing to the terminal device;

    Wherein, the number of downlink cells is used by the terminal device to determine the maximum monitoring number of physical downlink control channel candidates and the number of non-overlapping control channel elements when monitoring the physical downlink control channel in time slot groups for the cell with the subcarrier spacing maximum number.
19. The apparatus of claim 18, wherein the apparatus further comprises:

    A receiving unit, configured to receive the signaling reported by the terminal device and used to identify that the terminal device is capable of monitoring the physical downlink control channel in a time slot group.
20. A communication system comprising:

    A network device, which sends the number of downlink cells related to the subcarrier spacing;

    The terminal device determines, according to the number of downlink cells, the maximum number of monitored physical downlink control channel candidates and the maximum number of non-overlapping control channel elements when the physical downlink control channel is monitored in time slot groups for the cell with the subcarrier spacing.

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