CN109644099B

CN109644099B - Wireless communication method, network equipment and terminal

Info

Publication number: CN109644099B
Application number: CN201780049622.5A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-25
Filing date: 2017-09-25
Publication date: 2021-01-12
Anticipated expiration: 2037-09-25
Also published as: CN109644099A; WO2019056390A1

Abstract

The embodiment of the application provides a wireless communication method and equipment, which can improve the communication performance in the aspect of the configuration or use of resources of a PDCCH. The method comprises the following steps: determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource location; determining, for a second carrier or cell or bandwidth part, a second offset of CORESET of the terminal on the second carrier or cell or bandwidth part relative to a second reference resource location; and sending first information and second information to the terminal, wherein the first information is used for indicating the first offset corresponding to the first carrier or the cell or the bandwidth part, and the second information is used for indicating the second offset corresponding to the second carrier or the cell or the bandwidth part.

Description

Wireless communication method, network equipment and terminal

Technical Field

The present application relates to the field of communications, and more particularly, to a wireless communication method, a network device, and a terminal.

Background

In a Long Term Evolution (LTE) system, a network side may configure a common search space and a search space dedicated to a user for a terminal, and the terminal may search a Physical Downlink Control Channel (PDCCH) transmitted by the network side in the common search space and the search space dedicated to the user.

In the 5G system, the communication performance is more required.

Therefore, how to improve communication performance in terms of configuration or use of PDCCH resources is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and equipment, which can improve the communication performance in the aspect of the configuration or use of resources of a PDCCH.

In a first aspect, a wireless communication method is provided, including:

determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource location;

determining, for a second carrier or cell or bandwidth part, a second offset of CORESET of the terminal on the second carrier or cell or bandwidth part relative to a second reference resource location;

and sending first information and second information to the terminal, wherein the first information is used for indicating the first offset corresponding to the first carrier or the cell or the bandwidth part, and the second information is used for indicating the second offset corresponding to the second carrier or the cell or the bandwidth part.

Therefore, in this embodiment of the present application, the network device may respectively determine, for each carrier or cell or bandwidth part that may be used for the terminal, an offset of the CORESET or search space of the terminal with respect to a reference resource location, and indicate the offset to the terminal, so that the network device and the terminal may perform transmission of the PDCCH on each carrier or cell or bandwidth part according to the offset corresponding to each carrier or cell or bandwidth part, thereby achieving flexibility in improving resource utilization in terms of configuration and use of resources of the PDCCH, and thus improving communication performance.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource position includes:

determining the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal; and the number of the first and second groups,

the determining, for a second carrier or cell or bandwidth part, a second offset of the terminal with respect to a second reference resource location on the second carrier or cell or bandwidth part, includes:

and determining the second offset according to the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or the terminal information of the terminal.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the determining the first offset according to carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or terminal information of the terminal includes:

determining the first offset by using a preset calculation rule taking carrier or cell or bandwidth part information and/or terminal information as input, and carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or terminal information of the terminal; and the number of the first and second groups,

the determining the second offset according to the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or the terminal information of the terminal includes:

and determining the second offset by using the preset calculation rule, and the carrier wave or the cell or the bandwidth part information of the second carrier wave or the cell or the bandwidth part and/or the terminal information of the terminal.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the terminal information is a terminal identification ID.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, a difference of the first offsets of the plurality of terminals is different from a difference of the second offsets of the plurality of terminals.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the first information is carried in a common control signaling, a radio resource control, RRC, signaling or a downlink control information, DCI; and the number of the first and second groups,

the second information is carried in common control signaling, RRC signaling, or DCI.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, when the first information and the second information are carried in the DCI, the first offset and the second offset are respectively used for transmission of a physical downlink control channel PDCCH of an nth slot after the first information and the second information, where N is greater than or equal to 1.

In a second aspect, a wireless communication method is provided, including:

according to a first offset corresponding to the first carrier or the cell or the bandwidth part, sending a first PDCCH to the terminal on the first carrier or the cell or the bandwidth part; and

and sending a second PDCCH to the terminal on the second carrier or the cell or the bandwidth part according to a second offset corresponding to the second carrier or the cell or the bandwidth part.

With reference to the second aspect, in a possible implementation manner of the second aspect, the determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource position includes:

determining the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal;

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the determining the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal includes:

determining the first offset by using a preset calculation rule taking carrier or cell or bandwidth part information and/or terminal information as input, and carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or terminal information of the terminal;

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, the terminal information is a terminal identification ID.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, a difference of the first offsets of a plurality of terminals is different from a difference of the second offsets of the plurality of terminals.

In a third aspect, a wireless communication method is provided, including:

receiving first information sent by a network device, wherein the first information is used for indicating a first offset of a control resource set CORESET, which is determined by the network device on a first carrier or a cell or a bandwidth part, of a terminal relative to a first reference resource position, for the first carrier or the cell or the bandwidth part;

receiving second information sent by a network device, wherein the second information is used for indicating a second offset, relative to a second reference resource position, of a control resource set CORESET, on a second carrier or a cell or a bandwidth part, of the terminal, which is determined by the network device, for the second carrier or the cell or the bandwidth part;

receiving a first PDCCH sent by the network equipment on the first carrier or cell or bandwidth part according to the first offset; and

and receiving a second PDCCH sent by the network equipment on the second carrier or the cell or the bandwidth part according to the second offset.

Therefore, in this embodiment of the present application, the network device may respectively determine, for each carrier or cell or bandwidth part, an offset of the CORESET or search space of the terminal with respect to the reference resource position, and the terminal may respectively determine, for each carrier or cell or bandwidth part, an offset of the CORESET or search space of the terminal with respect to the reference resource position, so that the network device and the terminal may respectively implement transmission and reception of the PDCCH according to the determined offsets, thereby implementing flexibility in resource utilization in terms of configuration and use of resources of the PDCCH, and thus enhancing communication performance.

With reference to the third aspect, in a possible implementation manner of the third aspect, the first information is carried in a common control signaling, a radio resource control, RRC, or downlink control information, DCI;

the second information is carried in a common control signaling, a Radio Resource Control (RRC) signaling, or Downlink Control Information (DCI).

With reference to the third aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the third aspect, when the first information and the second information are carried in the DCI, the first offset and the second offset are respectively used for receiving a physical downlink control channel PDCCH of an nth slot after the first information and the second information, where N is greater than or equal to 1.

In a fourth aspect, a wireless communication method is provided, including:

for a first carrier or cell or bandwidth part, determining a first offset of a control resource set (CORESET) of a terminal in the first carrier or cell or bandwidth part relative to a first reference resource position;

determining, for a second carrier or cell or bandwidth part, a second offset of the terminal's CORESET relative to a second reference resource location for the second carrier or cell or bandwidth part;

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, the determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal in the first carrier or cell or bandwidth part with respect to a first reference resource position includes:

the determining, for a second carrier or cell or bandwidth part, a second offset of the terminal's CORESET in the second carrier or cell or bandwidth part with respect to a second reference resource location includes:

With reference to the fourth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the fourth aspect, the determining the first offset according to carrier information or cell information or bandwidth information of the first carrier or cell or bandwidth part and/or terminal information of the terminal includes:

determining the second offset according to the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or the terminal information of the terminal, including:

determining the second offset using a preset calculation rule using carrier or cell or bandwidth part information and/or terminal information as input, and carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or terminal information of the terminal.

With reference to the fourth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the fourth aspect, the terminal information is a terminal identification ID.

With reference to the fourth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the fourth aspect, the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

In a fifth aspect, a wireless communication method is provided, including:

determining a search space or a parameter of a control resource set (CORESET) of a first carrier or a cell or a bandwidth part;

and determining the search space or the parameter of the CORESET of the second carrier or the cell or the bandwidth part according to the search space or the parameter of the CORESET of the first carrier or the cell or the bandwidth part.

Therefore, in the embodiment of the present application, the terminal determines the search space of one carrier, or cell, or bandwidth part or the parameter of the control resource set CORESET according to the search space of the other carrier, or cell, or bandwidth part or the parameter of the control resource set CORESET, so that the network can be prevented from configuring the search spaces of all carriers, or cells, or bandwidth parts, and signaling overhead is saved.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the determining a parameter of a search space or a control resource set, CORESET, of the first carrier or the cell or the bandwidth portion includes:

receiving first information sent by a network device, wherein the first information is used for indicating a search space or a CORESET parameter of the first carrier or the cell or the bandwidth part;

and determining a search space or a CORESET parameter of the first carrier or the cell or the bandwidth part according to the first information.

With reference to the fifth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the fifth aspect, the determining, according to the search space of the first carrier or cell or bandwidth part or the parameter of the CORESET, the search space of the second carrier or cell or bandwidth part or the parameter of the CORESET includes:

and determining the search space or the parameter of the CORESET of the second carrier or the cell or the bandwidth part according to the search space or the parameter of the CORESET of the first carrier or the cell or the bandwidth part, the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part, and the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part.

With reference to the fifth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the fifth aspect, the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

With reference to the fifth aspect or any one of the foregoing possible implementations, in another possible implementation of the fifth aspect, the parameter of CORESET of the search space of the first carrier or cell or bandwidth part includes at least one of:

an offset of a search space or CORESET of the first carrier or cell or bandwidth portion relative to a reference resource location;

a set of basic parameters of a search space or of a CORESET of said first carrier or cell or bandwidth part;

the search space of the first carrier or cell or bandwidth part or the position of the time-frequency resource included by the CORESET;

the size of the time-frequency resource included in the search space or the CORESET of the first carrier or the cell or the bandwidth part;

utilizing the search space or CORESET of the first carrier or the cell or the bandwidth part to carry out PDCCH monitoring period;

the times of PDCCH blind detection in the search space or CORESET of the first carrier or the cell or the bandwidth part;

the size of the search space of the first carrier or cell or bandwidth part or the resource element group REG bundle of the CORESET.

With reference to the fifth aspect or any one of the foregoing possible implementations, in another possible implementation of the fifth aspect, the parameter of CORESET of the search space of the second carrier or cell or bandwidth part includes at least one of:

an offset of a search space or CORESET of the second carrier or cell or bandwidth portion relative to a reference resource location;

the search space of the second carrier or the cell or the bandwidth part or the position of the time-frequency resource included by the CORESET;

the size of the time-frequency resource included in the search space or the CORESET of the second carrier or the cell or the bandwidth part;

utilizing the search space or CORESET of the second carrier or the cell or the bandwidth part to perform PDCCH monitoring period;

the times of PDCCH blind detection in the search space or CORESET of the second carrier or the cell or the bandwidth part;

the size of the search space of the second carrier or cell or bandwidth part or the resource element group REG bundle of the CORESET.

determining the offset of the search space or the CORESET of the second carrier or the cell or the bandwidth part relative to the reference resource position according to the carrier or the cell or the bandwidth part ID of the first carrier or the cell or the bandwidth part, the carrier or the cell or the bandwidth part ID of the second carrier or the cell or the bandwidth part, and the offset of the search space or the CORESET of the first carrier or the cell or the bandwidth part relative to the reference resource position.

and determining the size of the search space of the second carrier or cell or bandwidth part or the size of the resource element group REG bundle of the CORESET according to the search space of the first carrier or cell or bandwidth part or the basic parameter set of the CORESET, the search space of the second carrier or cell or bandwidth part or the basic parameter set of the CORESET, and the size of the search space of the first carrier or cell or bandwidth part or the size of the resource element group REG bundle of the CORESET.

and determining the period for monitoring the PDCCH by using the search space or CORESET of the second carrier or the cell or the bandwidth part according to the period for monitoring the PDCCH by using the search space or CORESET of the first carrier or the cell or the bandwidth part.

and determining the times of PDCCH blind detection in the search space or CORESET of the second carrier or the cell or the bandwidth part according to the times of PDCCH blind detection in the search space or CORESET of the first carrier or the cell or the bandwidth part.

and determining the position of the time-frequency resource included in the search space of the second carrier or the cell or the bandwidth part or the CORESET according to the position of the time-frequency resource included in the search space of the first carrier or the cell or the bandwidth part or the CORESET.

and determining the size of the time-frequency resource included in the search space or the CORESET of the second carrier or the cell or the bandwidth part according to the size of the time-frequency resource included in the search space or the CORESET of the first carrier or the cell or the bandwidth part.

In a sixth aspect, a wireless communication method is provided, including:

and sending first information to a terminal, wherein the first information is used for indicating the search space of the first carrier or cell or bandwidth part or the parameter of a control resource set (CORESET), and is used for determining the search space of the second carrier or cell or bandwidth part or the parameter of the CORESET by the terminal according to the search space of the first carrier or cell or bandwidth part or the parameter of the CORESET.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the parameter of CORESET of the search space of the first carrier or cell or bandwidth portion includes at least one of:

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the sixth aspect, the parameter of CORESET of the search space of the second carrier or cell or bandwidth portion includes at least one of:

A seventh aspect provides a network device, configured to execute the foregoing first aspect or any possible implementation manner of the first aspect, or any possible implementation manner of the second aspect or the second aspect, or the method in any possible implementation manner of the sixth aspect or the sixth aspect. In particular, the network device comprises functional modules for performing the method in the first aspect or any possible implementation manner of the second aspect or any possible implementation manner of the sixth aspect.

In an eighth aspect, a terminal is provided for executing the third aspect or any possible implementation manner of the fourth aspect or the method in any possible implementation manner of the fifth aspect or the fifth aspect. In particular, the terminal comprises functional modules for performing the method in any possible implementation manner of the third aspect or any possible implementation manner of the fourth aspect or any possible implementation manner of the fifth aspect.

In a ninth aspect, a network device is provided that includes a processor, a memory, and a transceiver. The processor, the memory and the transceiver communicate with each other via an internal connection path to transmit control and/or data signals, so that the network device performs the method of the first aspect or any possible implementation manner of the first aspect, or any possible implementation manner of the second aspect, or any possible implementation manner of the sixth aspect.

In a tenth aspect, a terminal is provided that includes a processor, a memory, and a transceiver. The processor, the memory and the transceiver communicate with each other via the internal connection path to transmit control and/or data signals, so that the terminal performs the method of any possible implementation manner of the third aspect or the third aspect, or any possible implementation manner of the fourth aspect or the fourth aspect, or any possible implementation manner of the fifth aspect or the fifth aspect.

In an eleventh aspect, a computer-readable medium is provided for storing a computer program comprising instructions for performing any one of the above methods or any possible implementation.

In a twelfth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform any one of the methods described above or the method in any possible implementation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the application.

Fig. 2 is a schematic flow chart of a wireless communication method according to an embodiment of the application.

Fig. 3 is a resource distribution diagram of a specific carrier according to an embodiment of the present application.

Fig. 4 is a resource distribution diagram of a specific carrier according to an embodiment of the present application.

Fig. 5 is a schematic flow chart of a wireless communication method according to an embodiment of the application.

Fig. 6 is a schematic flow chart of a wireless communication method according to an embodiment of the application.

Fig. 7 is a schematic flow chart diagram of a wireless communication method according to an embodiment of the application.

Fig. 8 is a schematic block diagram of a network device according to an embodiment of the present application.

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

Fig. 10 is a schematic block diagram of a terminal according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a terminal according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a terminal according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a terminal according to an embodiment of the present application.

FIG. 14 is a schematic block diagram of a system chip according to an embodiment of the present application.

Fig. 15 is a schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE), a Frequency Division Duplex (FDD) System, a Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX), or a 5G System.

Fig. 1 illustrates a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include a network device 110. Network device 100 may be a device that communicates with a terminal device. Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Optionally, the Network device 100 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. Alternatively, terminal Equipment 120 may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120. Alternatively, the 5G system or network may also be referred to as a New Radio (NR) system or network.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 2 is a schematic flow chart diagram of a wireless communication method 200 according to an embodiment of the present application. The method 200 may alternatively be applied to the system shown in fig. 1, but is not limited thereto. The method 200 includes at least some of the following.

In 210, the network device determines, for a first carrier or cell or BandWidth Part (BWP), a first offset of a Control Resource Set (core Set) or a Search Space (Search Space, SS) of the terminal in the first carrier or cell or BandWidth Part relative to a first reference Resource location.

It should be understood that in the present application, first and second ones of the first carrier or cell or bandwidth portion and the second carrier or cell or bandwidth portion are used to modify the carrier or cell or bandwidth portion, respectively.

That is, the present application may be used in a scenario with multiple carriers, multiple cells, or multiple BWPs.

Optionally, the embodiments of the present application may be used in a Carrier Aggregation (CA) scenario.

Optionally, in this embodiment of the present application, the carrier that can be used for the terminal may be multiple carriers, that is, the multiple carriers may be used to communicate with one terminal, or one carrier may be selected from the multiple carriers to communicate with the terminal.

Optionally, in this embodiment of the present application, multiple cells may serve the terminal, for example, multiple cells may serve the cells simultaneously, or the terminal may perform handover in multiple cells.

Optionally, in this embodiment, the carrier may be divided into at least one BWP.

Optionally, in this embodiment of the present application, the terminal may communicate with the network device using multiple BWPs, for example, the terminal may communicate with the network device using multiple BWPs simultaneously, or the terminal may switch among multiple BWPs.

Optionally, in the embodiment of the present application, the CORESET or the search space may be terminal-specific (Per UE). Specifically, the network device may configure the CORESET or the search space for each terminal, respectively.

Alternatively, the CORESET or search space of a particular terminal may be used for transmission of the PDCCH of that particular terminal.

Optionally, the CORESET or search space of different terminals may include resources that do not overlap at all on the same carrier or the same cell or the same BWP. Alternatively, the CORESET or search spaces of multiple terminals may overlap completely or partially.

Alternatively, the terminal may have at least one core set or at least one search space on the same carrier or the same cell or the same BWP. Each CORESET or search space may transmit a common PDCCH or a PDCCH specific to that terminal.

Optionally, the CORESET may include at least one PDCCH candidate location.

Optionally, the aggregation level of the PDCCH candidates may be 1,2,4 or 8, that is, 1,2,4 or 8 Control Channel Elements (CCEs) may be occupied.

Alternatively, one CORESET may include PDCCH candidates of multiple aggregation levels, e.g., including PDCCH candidates of 1,2,4, and 8 aggregation levels at the same time.

Alternatively, a CORESET may include at least one search space, each of which may have an aggregation level.

Alternatively, in the embodiment of the present application, the search space has no relationship with CORESET, and one search space may have one aggregation level, but may also have two or more aggregation levels.

Optionally, the search space may include at least one PDCCH candidate location. Optionally, the aggregation level of the PDCCH candidates may be 1,2,4 or 8, that is, 1,2,4 or 8 Control Channel Elements (CCEs) may be occupied.

Optionally, the first reference resource location may be a fixed resource location preset on the network device and the terminal; or the network equipment and the terminal equipment are determined according to a preset calculation rule; or the network equipment is determined according to a preset calculation rule and configured for the terminal.

Alternatively, the first reference resource location may be carrier or cell or BWP related, that is, the first reference resource location may be determined by using carrier or cell or BWP information of the first carrier or cell or BWP. Alternatively, the first reference resource location may not be related to a carrier or a cell or BWP, i.e., the carrier or the cell or the BWP information of the first carrier or the cell or the BWP is not needed to be utilized in determining the first reference resource location.

Optionally, an index of a first Control Channel Element (CCE) of the CORESET may be obtained by using a first offset of a Control Resource Set (CORESET) of the terminal with respect to a first reference Resource location and combining the reference Resource location.

Optionally, the network device determines the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal.

For example, the first offset may be determined using carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part without using terminal information of the terminal. Alternatively, the first offset may be determined using terminal information of the terminal without using carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part. Alternatively, the first offset is determined by using both the terminal information of the terminal and the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part.

Specifically, the network device may determine the first offset using a preset calculation rule having carrier or cell or bandwidth part information and/or terminal information as input, and the carrier or cell or bandwidth part information of the first carrier and/or terminal information of the terminal.

Optionally, the terminal information mentioned in the embodiment of the present application is a terminal Identifier (ID). Of course, the terminal information may be other information than the terminal ID, for example, capability information of the terminal.

Optionally, the carrier or cell or bandwidth part information mentioned in this embodiment of the present application is a carrier or cell or bandwidth part identification ID. Specifically, it is a carrier ID, or a cell ID or a bandwidth part ID.

If the first offset of the CORESET or the search space of the terminal on a certain carrier relative to the position of the reference resource is obtained, the carrier ID of the carrier is adopted to determine the first offset. If the first offset of the CORESET or the search space of the terminal on a certain cell relative to the reference resource position is obtained, the cell ID of the cell is adopted to determine the first offset. If a first offset of the terminal's CORESET or search space on a certain bandwidth portion relative to a reference resource location is obtained, the bandwidth portion ID of that bandwidth portion is used to determine the first offset.

Of course, the information of the carrier, the cell, or the bandwidth part may be other information than the carrier ID, the cell ID, or the bandwidth part ID, for example, frequency point information of the carrier, frequency point information of the bandwidth part, or the like.

In 220, the network device determines, for a second carrier or cell or bandwidth portion, a second offset of the terminal in the CORESET or search space of the second carrier or cell or bandwidth portion relative to a second reference resource location.

Optionally, the second reference resource location may be related to a carrier or a cell or a bandwidth part, that is, the second reference resource location may be determined by using carrier or cell or bandwidth part information of the second carrier or the cell or the bandwidth part. Alternatively, the second reference resource location may not be related to a carrier or a cell or a bandwidth part, that is, the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part is not needed to be utilized when determining the second reference resource location.

Optionally, using a second offset of the Control resource set of the terminal relative to a second reference resource location, and combining the second reference resource location, an index of a first Control Channel Element (CCE) of the CORESET or the search space may be obtained.

Optionally, the first reference resource location and the second reference resource location may be the same or different.

Optionally, the network device determines the second offset according to the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or the terminal information of the terminal.

For example, the second offset may be determined using carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part without using terminal information of the terminal. Alternatively, the second offset may be determined using terminal information for the terminal without using carrier or cell or bandwidth part information for the second carrier or cell or bandwidth part. Alternatively, the second offset is determined by using the terminal information of the terminal and the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part at the same time.

Specifically, the network device may determine the second offset using a preset calculation rule having carrier or cell or bandwidth part information and/or terminal information as input, and carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or terminal information of the terminal.

Alternatively, the preset calculation rule for determining the first offset may be the same as the preset calculation rule for determining the second offset.

Optionally, in this embodiment of the present application, a bias of the CORESET or the search space of the terminal compared to the reference resource position is determined by using terminal information of the terminal, or using carrier or cell or bandwidth part information of the terminal and the terminal information of the terminal, so that the CORESET or the search space of each terminal is at least partially non-overlapped in resources, and a problem of resource collision can be avoided.

In 230, the network device sends first information to the terminal, where the first information is used to indicate the first offset corresponding to the first carrier or cell or bandwidth portion.

Optionally, the first Information is carried in common Control signaling, Radio Resource Control (RRC) signaling, or Downlink Control Information (DCI).

Optionally, the common control signaling may be a group common control signaling, at this time, optionally, offsets corresponding to a plurality of terminals in the terminal group may be the same, and certainly, the group common control signaling may also carry offsets corresponding to each terminal respectively.

Optionally, when the first information is carried in DCI, the first offset is used for transmission of a physical downlink control channel PDCCH of an nth slot after the first information, where N is greater than or equal to 1.

In 240, the network device sends second information to the terminal, where the second information is used to indicate the second offset corresponding to the second carrier or cell or bandwidth portion.

Optionally, the second information is carried in common control signaling, RRC signaling, or DCI

Optionally, when the second information is carried in the DCI, the second offsets are respectively used for transmission of a physical downlink control channel PDCCH of an nth time slot after the second information, where N is greater than or equal to 1.

Optionally, the first information and the second information may be carried in the same signaling, or may not be carried in the same signaling.

In 250, the terminal receives first information sent by the network device, where the first information is used to indicate, for a first carrier or cell or bandwidth portion, a first offset of a control resource set, CORESET, or a search space of the terminal in the first carrier or cell or bandwidth portion, relative to a first reference resource location, that the network device determines.

In 260, the terminal receives second information sent by the network device, where the second information is used to indicate a second offset of the control resource set CORESET of the terminal, which is determined by the network device for a second carrier or cell or bandwidth portion, relative to a second reference resource location.

In 272, the network device transmits a first PDCCH to the terminal on the first carrier in accordance with the first offset.

Specifically, the network device may determine a CORESET or a search space of the terminal on the first carrier or the cell or the bandwidth part according to the first offset, and transmit the PDCCH in a PDCCH candidate position of the CORESET or the search space.

In 274, the terminal receives a first PDCCH sent by the network device on the first carrier according to the first offset.

Specifically, the terminal may determine a CORESET or a search space on the first carrier or the cell or the bandwidth portion according to the first offset, and perform blind detection on the PDCCH at a PDCCH candidate position included in the CORESET or the search space.

In 282, the network device sends a second PDCCH to the terminal on the second carrier or cell or bandwidth part according to the second offset.

Specifically, the network device may determine a CORESET or search space of the terminal on the second carrier or cell or bandwidth portion according to the second offset, and transmit the PDCCH on the PDCCH candidate location in the CORESET or search space.

In 284, the terminal receives a second PDCCH sent by the network device on the first carrier according to the second offset.

Specifically, the terminal may determine a CORESET or a search space on the second carrier or the cell or the bandwidth part according to the second offset, and perform blind detection on the PDCCH at a PDCCH candidate position included in the CORESET or the search space.

Optionally, a difference of the first offsets of the plurality of terminals is different from a difference of the second offsets of the plurality of terminals.

Specifically, the difference in the offsets of the CORESET or search space of each of the plurality of terminals from the reference resource location for the first carrier or cell or bandwidth portion is different from the difference in the offsets of the CORESET or search space of each of the plurality of terminals from the reference resource location for the second carrier or cell or bandwidth portion.

The following description will be made with reference to fig. 3 and 4, taking a carrier as an example.

For example, as shown in fig. 3, on carrier 1, the difference between the offset of CORESET of UE1 from the reference resource location and the offset of CORESET of UE2 from the reference resource location is 2 CCEs. As shown in fig. 4, on carrier 2, the difference between the offset of CORESET of UE1 from the reference resource location and the offset of CORESET of UE2 from the reference resource location is 4 CCEs.

Although the resources occupied by the Aggregation Levels (AL) shown in fig. 3 and 4 are shown separately and separately in the drawings, they occupy the same resources substantially, and the separate illustration is merely for convenience of illustration.

It should be understood that the resources occupied by the aggregation levels may also partially overlap or completely overlap on the same carrier.

Optionally, in this embodiment of the present application, the network device may select a carrier or a cell or a bandwidth portion that needs to transmit a PDCCH to multiple terminals according to an offset difference of the multiple terminals of each carrier or cell or bandwidth portion.

Specifically, the carrier or the cell or the bandwidth part that needs to transmit the PDCCH to the multiple terminals may be selected according to the offset difference of the multiple terminals of each carrier or cell or bandwidth part and the downlink control information to be transmitted by the multiple terminals.

For example, in the case of resource allocation as shown in fig. 3 and 4, PDCCH1 needs to be transmitted to UE1 occupying 4 CCEs, PDCCH2 needs to be transmitted to UE2 occupying 4 CCEs; carrier 2 may be selected to transmit PDCCH1 and PDCCH2 to UE1 and UE2, e.g., the first 4 CCEs occupying the 8 CCEs shown in fig. 4 transmit PDCCH1 to UE1, or the last 4 CCEs occupying the 8 CCEs shown in fig. 4 transmit PDCCH2 to UE 2; alternatively, PDCCH1 for carrier 1 transmitting UE1 may be selected and PDCCH2 for carrier 2 transmitting UE2 may be selected; alternatively, PDCCH2 for carrier 1 transmitting UE2 may be selected, and PDCCH1 for carrier 2 transmitting UE1 may be selected; and avoiding selecting carrier 1 to transmit PDCCH1 and PDCCH2 simultaneously because the offset difference is only 2 CCEs, PDCCH1 and PDCCH2 cannot be transmitted simultaneously with non-overlapping CCEs.

Alternatively, a difference of the first offsets of the plurality of terminals may be implemented differently from a difference of the second offsets of the plurality of terminals using a specific calculation rule.

For example, the difference of the first offsets of the plurality of terminals may be implemented by a product of x and y in a calculation rule (i.e., x and y are part of the calculation rule), where x represents a carrier ID of a carrier and y represents a terminal ID of a terminal, and the difference of the second offsets of the plurality of terminals is different.

It should be understood that the calculation rule may include other parameters or factors in addition to xy, or the calculation rule may be in other forms.

Therefore, in the embodiment of the present application, the difference of the first offsets of the plurality of terminals is different from the difference of the second offsets of the plurality of terminals, so that more flexible PDCCH transmission can be achieved.

It should be understood that the order of steps shown in fig. 2 should not be particularly limited to the method 200, and the specific execution order may be determined according to the inherent logic.

For example, the transmission of the first information may be after the transmission of the second information, or the transmission of the second information may be after the reception of the first PDCCH.

Fig. 5 is a schematic block diagram of a wireless communication method 300 according to an embodiment of the present application. The method 300 may alternatively be applied to the system shown in fig. 1, but is not limited thereto. The method 300 includes at least some of the following.

In 310, the network device determines, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, or search space of the terminal in the first carrier or cell or bandwidth part relative to a first reference resource location.

Specifically, the first offset is determined using a preset calculation rule having carrier or cell or bandwidth part information and/or terminal information as input, and carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or terminal information of the terminal.

Optionally, the terminal information is a terminal identification ID.

Optionally, the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

At 320, the network device determines, for a second carrier or cell or bandwidth portion, a second offset of the terminal in the CORESET or search space of the second carrier or cell or bandwidth portion relative to a second reference resource location.

Specifically, the second offset is determined by using the preset calculation rule, and the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or the terminal information of the terminal.

In 330, the network device sends a first PDCCH to the terminal on the first carrier or cell or bandwidth part according to the offset corresponding to the first carrier or cell or bandwidth part.

In 340, the network device sends a second PDCCH to the terminal on the second carrier or cell or bandwidth part according to the offset corresponding to the second carrier or cell or bandwidth part.

In 350, for a first carrier or cell or bandwidth part, the terminal determines a first offset of a control resource set, CORESET, or search space of the terminal relative to a first reference resource location on the first carrier or cell or bandwidth part.

Optionally, the terminal determines the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal.

Alternatively, the terminal may determine the first offset in the same manner as the network device.

At 360, for a second carrier or cell or bandwidth part, the terminal determines a second offset of the terminal's CORESET or search space relative to a second reference resource location over the second carrier or cell or bandwidth part.

Optionally, the terminal determines the second offset according to the carrier or cell or bandwidth part information of the second carrier or cell or bandwidth part and/or the terminal information of the terminal.

Alternatively, the terminal may determine the second offset in the same manner as the network device.

In 370, the terminal receives a first PDCCH sent by the network device on the first carrier or cell or bandwidth part according to the first offset.

In 380, the terminal receives a second PDCCH sent by the network device on the second carrier or cell or bandwidth part according to the second offset.

For example, the difference of the first offsets of the plurality of terminals and the difference of the second offsets of the plurality of terminals may be implemented by calculating a product of x and y in a rule, where x represents a carrier ID of a carrier and y represents a terminal ID of a terminal.

It should be understood that the order of steps shown in fig. 5 should not be particularly limited to the method 300, and the specific execution order may be determined according to the inherent logic.

For example, the reception of the first PDCCH may precede the transmission of the second PDCCH. For example, the determination of the second offset and the reception of the second PDCCH may be subsequent to the reception of the first PDCCH.

It should be understood that the specific implementation of the method 300 shown in fig. 5 may refer to the description of the method 200, for example, the description of the manner in which the network device determines the first offset and the second offset, and the terms, the manner in which the PDCCH is received and transmitted by using the offset, how offset differences are implemented on different carriers, and the like, and therefore, for brevity, no further description is provided here.

Fig. 6 is a schematic flow chart diagram of a wireless communication method 400 according to an embodiment of the present application. The method 400 includes at least some of the following.

In 410, the terminal determines the search space or CORESET parameters for the first carrier or cell or bandwidth portion.

In 420, the terminal determines the search space or CORESET parameters for the second carrier or cell or bandwidth part based on the search space or CORESET parameters for the first carrier or cell or bandwidth part.

Fig. 7 is a schematic flow chart diagram of a wireless communication method 500 according to an embodiment of the application. The method 500 includes at least some of the following.

In 510, the network device determines a search space or a parameter of CORESET for the first carrier or cell or bandwidth portion.

In 520, the network device sends first information to the terminal, where the first information is used to indicate a search space or a parameter of a control resource set, CORESET, of the first carrier, or cell, or bandwidth part, and is used for the terminal to determine the search space or the parameter of the CORESET, of the second carrier, or cell, or bandwidth part, according to the search space or the parameter of the CORESET of the first carrier, or cell, or bandwidth part.

In 530, the terminal receives first information sent by the network device, where the first information is used to indicate a search space or a parameter of CORESET of the first carrier or the cell or the bandwidth portion;

in 540, the terminal determines the search space or CORESET parameters for the first carrier or cell or bandwidth portion based on the first information.

In 550, the terminal determines a search space or CORESET parameter for a second carrier or cell or bandwidth portion based on the search space or CORESET parameter for the first carrier or cell or bandwidth portion.

It should be understood that although in the method 500, the terminal determines the search space or the parameter of the core set of the first carrier or cell or bandwidth part according to the first information sent by the network and used for indicating the search space or the parameter of the core set of the first carrier or cell or bandwidth part, the embodiment of the present application is not limited thereto, for example, the search space or the parameter of the core set of the first carrier or cell or bandwidth part is determined according to the search space or the parameter of the core set of another carrier or cell or bandwidth part.

The method 400 and the method 500 are briefly introduced above, and detailed implementation of the method 400 and the method 500 will be described below, and the following description applies to both the method 400 and the method 500.

Optionally, the terminal determines the search space or the parameter of the core set of the second carrier or the cell or the bandwidth part according to the search space or the parameter of the core set of the first carrier or the cell or the bandwidth part, the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part, and the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part.

Optionally, the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID. Of course, the carrier, cell, or bandwidth part information may be other information than the carrier ID, cell ID, or bandwidth part ID, for example, frequency point information of the carrier, frequency point information of the bandwidth part, or the like.

Specifically, the terminal may determine the search space of the second carrier or cell or bandwidth part or the parameter of CORESET according to a relationship (e.g., a difference relationship or a ratio relationship) between the carrier or cell or bandwidth part ID of the first carrier or cell or bandwidth part and the carrier or cell or bandwidth part ID of the second carrier or cell or bandwidth part, and a search space of the first carrier or cell or bandwidth part or a parameter of CORESET.

Optionally, the parameter of the CORESET of the search space of the first carrier or cell or bandwidth part includes at least one of:

1) an offset of a search space or CORESET of the first carrier or cell or bandwidth portion relative to a reference resource location;

2) a base parameter set (numerology) of a search space or CORESET of the first carrier or cell or bandwidth portion;

3) the search space of the first carrier or cell or bandwidth part or the position of the time-frequency resource included by the CORESET;

4) the size of the time-frequency resource included in the search space or CORESET of the first carrier or cell or bandwidth part;

5) utilizing the search space or CORESET of the first carrier or cell or bandwidth part to perform PDCCH monitoring period;

6) the times of PDCCH blind detection in the search space or CORESET of the first carrier or cell or bandwidth part;

7) the search space of the first carrier or cell or bandwidth part or the size of the resource element group REG bundle of the CORESET.

Optionally, the parameter of the CORESET of the search space of the second carrier or cell or bandwidth part includes at least one of:

1) an offset of a search space or CORESET of the second carrier or cell or bandwidth portion relative to a reference resource location;

2) the search space of the second carrier or cell or bandwidth part or the location of the time-frequency resource included by the CORESET;

3) the size of the time-frequency resource included in the search space or CORESET of the second carrier or cell or bandwidth part;

4) utilizing the search space or CORESET of the second carrier or the cell or the bandwidth part to carry out PDCCH monitoring period;

5) the times of PDCCH blind detection in the search space or CORESET of the second carrier or the cell or the bandwidth part;

6) a search space of the second carrier or cell or bandwidth part or a size of a Resource Element Group (REG) bundle (bundle) of the CORESET.

Several specific implementations of determining, by the terminal, the search space of the second carrier or cell or bandwidth portion or the parameter of the CORESET according to the search space of the first carrier or cell or bandwidth portion or the parameter of the CORESET are described below, but it should be understood that the embodiments of the present application are not limited thereto.

In one implementation, the offset of the search space or CORESET of the second carrier or cell or bandwidth part with respect to the reference resource location is determined according to the carrier or cell or bandwidth part ID of the first carrier or cell or bandwidth part, the carrier or cell or bandwidth part ID of the second carrier or cell or bandwidth part, and the offset of the search space or CORESET of the first carrier or cell or bandwidth part with respect to the reference resource location.

Specifically, the terminal may determine the offset of the search space or CORESET of the second carrier or cell or bandwidth part with respect to the reference resource location according to a relationship (e.g., a difference relationship or a ratio relationship) between the carrier or cell or bandwidth part ID of the first carrier or cell or bandwidth part and the carrier or cell or bandwidth part ID of the second carrier or cell or bandwidth part, and the offset of the search space or CORESET of the first carrier or cell or bandwidth part with respect to the reference resource location.

For example, the search space or CORESET offset of the second carrier or cell or bandwidth portion relative to the reference resource location may be calculated using the following equation:

a₂＝a₁+x(b₂-b₁) Wherein a is₂An offset of the search space or CORESET for the second carrier or cell or bandwidth portion with respect to the reference resource location, a₁Offset of the search space or CORESET for the first carrier or cell or bandwidth portion with respect to the reference resource location, b₂A carrier or cell or bandwidth part ID of the second carrier or cell or bandwidth part, b₁A carrier or cell or bandwidth part ID being the first carrier or cell or bandwidth part, x being a constant.

In one implementation, the size of the search space of the second carrier or cell or bandwidth part or the resource element group bundle of CORESET is determined according to the basic parameter set of the search space of the first carrier or cell or bandwidth part or CORESET and the basic parameter set of the search space of the second carrier or cell or bandwidth part or CORESET and the size of the search space of the first carrier or cell or bandwidth part or the resource element group REG bundle of CORESET.

For example, the size of the search space of the second carrier or cell or bandwidth part or the resource element group REG bundle of CORESET may be determined by using a relationship (e.g., a ratio relationship) between the subcarrier spacing in the search space of the first carrier or cell or bandwidth part or the basic parameter set of CORESET and the subcarrier spacing in the search space of the second carrier or cell or bandwidth part or the basic parameter set of CORESET, and the size of the search space of the first carrier or cell or bandwidth part or the resource element group REG bundle of CORESET.

In one implementation, the PDCCH monitoring period using the search space or the CORESET of the second carrier or the cell or the bandwidth part is determined according to the PDCCH monitoring period using the search space or the CORESET of the first carrier or the cell or the bandwidth part.

For example, the period of PDCCH monitoring using the search space or CORESET of the first carrier or cell or bandwidth part may be directly determined as the period of PDCCH monitoring using the search space or CORESET of the second carrier or cell or bandwidth part.

Certainly, the period of using the search space or the core set of the first carrier or the cell or the bandwidth portion to perform PDCCH monitoring may not be equal to the period of using the search space or the core set of the second carrier or the cell or the bandwidth portion to perform PDCCH monitoring, and a certain functional relationship may exist between the search space or the core set of the second carrier or the cell or the bandwidth portion, where factors of the functional relationship may include frequency point information or bandwidth information of the first carrier or the cell or the bandwidth portion, frequency point information or bandwidth information of the second carrier or the cell or the bandwidth portion, and the like.

In one implementation, the number of times of PDCCH blind detection in the search space or the CORESET of the second carrier or the cell or the bandwidth part is determined according to the number of times of PDCCH blind detection in the search space or the CORESET of the first carrier or the cell or the bandwidth part.

For example, the number of times of PDCCH blind detection in the search space or CORESET of the first carrier or cell or bandwidth part may be directly determined as the number of times of PDCCH blind detection in the search space or CORESET of the second carrier or cell or bandwidth part.

Of course, the frequency of the PDCCH blind detection in the search space or the core set of the first carrier or the cell or the bandwidth part may also not be equal to the frequency of the PDCCH blind detection in the search space or the core set of the second carrier or the cell or the bandwidth part, and a certain functional relationship may exist between the two, where the factors of the functional relationship may include frequency point information or bandwidth information of the first carrier or the cell or the bandwidth part, and frequency point information or bandwidth information of the second carrier or the cell or the bandwidth part, and the like.

In one implementation, the location of the time-frequency resource included in the search space or the core set of the second carrier or the cell or the bandwidth portion is determined according to the location of the time-frequency resource included in the search space or the core set of the first carrier or the cell or the bandwidth portion.

Specifically, the location of the time-frequency resource included in the search space or core set of the second carrier or cell or bandwidth portion may be determined by combining the carrier or cell or bandwidth portion ID of the first carrier or cell or bandwidth portion with the carrier or cell or bandwidth portion ID of the second carrier or cell or bandwidth portion, and the location of the time-frequency resource included in the search space or core set of the first carrier or cell or bandwidth portion.

For example, the location of the time-frequency resource included in the search space or CORESET of the second carrier or cell or bandwidth part may be determined according to a relationship (e.g., a difference relationship or a ratio relationship) between the carrier or cell or bandwidth part ID of the first carrier or cell or bandwidth part and the carrier or cell or bandwidth part ID of the second carrier or cell or bandwidth part, and the location of the time-frequency resource included in the search space or CORESET of the first carrier or cell or bandwidth part.

For example, the difference between the search space of the first carrier, cell, or bandwidth part or the starting time-frequency resource location of CORESET and the search space of the second carrier, cell, or bandwidth part or the starting time-frequency resource location of CORESET may be determined according to the difference between the carrier, cell, or bandwidth part ID of the first carrier, cell, or bandwidth part and the carrier, cell, or bandwidth part ID of the second carrier, cell, or bandwidth part, and the search space of the second carrier, cell, or bandwidth part or the starting time-frequency resource location of CORESET may be determined according to the difference between the starting time-frequency resource locations and the search space of the first carrier, cell, or bandwidth part or the starting time-frequency resource location of CORESET.

In one implementation, the size of the time-frequency resource included in the search space or the core set of the second carrier or the cell or the bandwidth portion is determined according to the size of the time-frequency resource included in the search space or the core set of the first carrier or the cell or the bandwidth portion.

For example, the size of the time-frequency resource included in the search space or the core set of the first carrier or the cell or the bandwidth part may be directly determined as the size of the time-frequency resource included in the search space or the core set of the second carrier or the cell or the bandwidth part.

Of course, the size of the time-frequency resource included in the search space or the core set of the first carrier or the cell or the bandwidth part may not be equal to the size of the time-frequency resource included in the search space or the core set of the second carrier or the cell or the bandwidth part. The two may have a certain functional relationship, and the factors of the functional relationship may include frequency point information or bandwidth information of the first carrier or cell or bandwidth portion, and frequency point information or bandwidth information of the second carrier or cell or bandwidth portion, and the like.

Fig. 8 is a schematic block diagram of a network device 600 according to an embodiment of the present application. As shown in fig. 8, the network device 600 includes a processing unit 610 and a communication unit 620; wherein the content of the first and second substances,

the processing unit 610 is configured to: determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource location; determining, for a second carrier or cell or bandwidth part, a second offset of CORESET of the terminal on the second carrier or cell or bandwidth part relative to a second reference resource location;

the communication unit 620 is configured to: and sending first information and second information to the terminal, wherein the first information is used for indicating the first offset corresponding to the first carrier or the cell or the bandwidth part, and the second information is used for indicating the second offset corresponding to the second carrier or the cell or the bandwidth part.

It should be understood that the network device 600 may correspond to the network device in the method 200, and corresponding operations implemented by the network device in the method 200 may be implemented, which are not described herein again for brevity.

Fig. 9 is a schematic block diagram of a network device 700 according to an embodiment of the present application. As shown in fig. 9, the network device 700 has a processing unit 710 and a communication unit 720

The processing unit 710 is configured to: determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource location; determining, for a second carrier or cell or bandwidth part, a second offset of CORESET of the terminal on the second carrier or cell or bandwidth part relative to a second reference resource location;

the communication unit 720 is configured to: according to a first offset corresponding to the first carrier or the cell or the bandwidth part, sending a first PDCCH to the terminal on the first carrier or the cell or the bandwidth part; and transmitting a second PDCCH to the terminal on the second carrier or cell or bandwidth part according to a second offset corresponding to the second carrier or cell or bandwidth part.

It should be understood that the network device 700 may correspond to the network device in the method 300, and corresponding operations implemented by the network device in the method 300 may be implemented, which are not described herein again for brevity.

Fig. 10 is a schematic block diagram of a terminal 800 according to an embodiment of the present application. As shown in fig. 10, the terminal 800 includes a first receiving unit 810 and a second receiving unit 820; wherein the content of the first and second substances,

the first receiving unit 810 is configured to: receiving first information sent by a network device, wherein the first information is used for indicating a first offset of a control resource set CORESET, which is determined by the network device on a first carrier or a cell or a bandwidth part, of a terminal relative to a first reference resource position, for the first carrier or the cell or the bandwidth part; receiving second information sent by a network device, wherein the second information is used for indicating a second offset, relative to a second reference resource position, of a control resource set CORESET, on a second carrier or a cell or a bandwidth part, of the terminal, which is determined by the network device, for the second carrier or the cell or the bandwidth part;

the second receiving unit 820 is configured to: receiving a first PDCCH sent by the network equipment on the first carrier or cell or bandwidth part according to the first offset; and receiving a second PDCCH sent by the network device on the second carrier or cell or bandwidth part according to the second offset.

It should be understood that the terminal 800 may correspond to the terminal in the method 200, and corresponding operations implemented by the terminal in the method 200 may be implemented, which are not described herein again for brevity.

Fig. 11 is a schematic block diagram of a terminal 900 according to an embodiment of the present application. As shown in fig. 11, the terminal 900 includes a processing unit 910 and a communication unit 920. Wherein the content of the first and second substances,

the processing unit 910 is configured to: for a first carrier or cell or bandwidth part, determining a first offset of a control resource set (CORESET) of a terminal in the first carrier or cell or bandwidth part relative to a first reference resource position; determining, for a second carrier or cell or bandwidth part, a second offset of the terminal's CORESET relative to a second reference resource location for the second carrier or cell or bandwidth part;

the communication unit 920 is configured to: receiving a first PDCCH sent by the network equipment on the first carrier or cell or bandwidth part according to the first offset; and receiving a second PDCCH sent by the network device on the second carrier or cell or bandwidth part according to the second offset.

It should be understood that the terminal 900 may correspond to the terminal in the method 300, and corresponding operations implemented by the terminal in the method 300 may be implemented, which are not described herein again for brevity.

Fig. 12 is a schematic block diagram of a terminal 1000 according to an embodiment of the application. As shown in fig. 12, the terminal 1000 includes a first processing unit 1010 and a second processing unit 1020.

The first processing unit 1010 is configured to: determining a search space or a parameter of a control resource set (CORESET) of a first carrier or a cell or a bandwidth part;

the second processing unit 1010 is configured to: and determining the search space or the parameter of the CORESET of the second carrier or the cell or the bandwidth part according to the search space or the parameter of the CORESET of the first carrier or the cell or the bandwidth part.

It should be understood that the terminal 1000 may correspond to the terminal in the

method

400 or 500, and corresponding operations implemented by the terminal in the

method

400 or 500 may be implemented, which are not described herein again for brevity.

Fig. 13 is a schematic block diagram of a network device 1100 according to an embodiment of the present application. As shown in fig. 13, the network device 1100 includes a first processing unit 1110 and a second processing unit 1120.

The processing unit is configured to: determining a search space or a parameter of a control resource set (CORESET) of a first carrier or a cell or a bandwidth part;

the communication unit is configured to: and sending first information to a terminal, wherein the first information is used for indicating the search space of the first carrier or cell or bandwidth part or the parameter of a control resource set (CORESET), and is used for determining the search space of the second carrier or cell or bandwidth part or the parameter of the CORESET by the terminal according to the search space of the first carrier or cell or bandwidth part or the parameter of the CORESET.

It should be understood that the network device 1100 may correspond to the network device in the method 500, and corresponding operations implemented by the network device in the method 500 may be implemented, which are not described herein again for brevity.

Fig. 14 is a schematic structural diagram of a system chip 1200 according to an embodiment of the present application. The system chip 1200 in fig. 14 includes an input interface 1201, an output interface 1202, the processor 1203 and a memory 1204, which may be connected via an internal communication connection, and the processor 1203 is configured to execute codes in the memory 1204.

Optionally, when the code is executed, the processor 1203 implements the method performed by the network device in the method embodiment. For brevity, no further description is provided herein.

Optionally, when the code is executed, the processor 1203 implements the method executed by the terminal in the method embodiment. For brevity, no further description is provided herein.

Fig. 15 is a schematic block diagram of a communication device 1300 according to an embodiment of the present application. As shown in fig. 15, the communication device 1300 includes a processor 1310 and a memory 1320. The memory 1320 can store program codes, and the processor 1310 can execute the program codes stored in the memory 1320.

Alternatively, as shown in fig. 15, the communication device 1300 may include a transceiver 1330, and the processor 1310 may control the transceiver 1330 to communicate with the outside.

Optionally, the processor 1310 may call the program code stored in the memory 1320 to perform corresponding operations of the network device in the method embodiment, which is not described herein for brevity.

Optionally, the processor 1310 may call the program code stored in the memory 1320 to perform corresponding operations of the terminal in the method embodiment, which is not described herein for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wireless communication method applied to a carrier aggregation scenario includes:

determining a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part relative to a first reference resource position according to the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

determining a second offset of the CORESET of the terminal on a second carrier or a cell or a bandwidth part relative to a second reference resource position according to the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

2. The method according to claim 1, wherein the determining the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal comprises:

3. The method according to claim 1 or 2, wherein the terminal information is a terminal identification ID.

4. The method of claim 1, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part Identification (ID).

5. The method of claim 1, wherein a difference in the first offsets for a plurality of terminals is different from a difference in the second offsets for the plurality of terminals.

6. The method of claim 1, wherein the first information is carried in common control signaling, Radio Resource Control (RRC) signaling, or Downlink Control Information (DCI); and the number of the first and second groups,

7. The method of claim 6, wherein when the first information and the second information are carried in the DCI, the first offset and the second offset are used for transmission of a Physical Downlink Control Channel (PDCCH) of an Nth slot after the first information and the second information, respectively, and N is greater than or equal to 1.

8. A wireless communication method applied to a carrier aggregation scenario includes:

9. The method according to claim 8, wherein the determining the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal comprises:

10. The method according to claim 8 or 9, wherein the terminal information is a terminal identification ID.

11. The method of claim 8, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part Identification (ID).

12. The method of claim 8, wherein a difference in the first offsets for a plurality of terminals is different from a difference in the second offsets for the plurality of terminals.

13. A wireless communication method applied to a carrier aggregation scenario includes:

receiving first information sent by a network device, wherein the first information is used for indicating a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part, which is determined by the network device aiming at the carrier or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal, relative to a first reference resource position;

receiving second information sent by a network device, wherein the second information is used for indicating a second offset of a control resource set CORESET of a terminal on a second carrier or a cell or a bandwidth part, which is determined by the network device aiming at carrier or bandwidth part information of the second carrier or the cell or the bandwidth part and/or terminal information of the terminal, relative to a second reference resource position;

14. The method of claim 13, wherein the first information is carried in common control signaling, Radio Resource Control (RRC) signaling, or Downlink Control Information (DCI);

15. The method of claim 14, wherein when the first information and the second information are carried in the DCI, the first offset and the second offset are used for receiving a Physical Downlink Control Channel (PDCCH) of an nth slot after the first information and the second information, respectively, and N is greater than or equal to 1.

16. A wireless communication method applied to a carrier aggregation scenario includes:

receiving a first PDCCH sent by a network device on the first carrier or cell or bandwidth part according to the first offset; and

17. The method according to claim 16, wherein determining the first offset according to the carrier or cell or bandwidth part information of the first carrier or cell or bandwidth part and/or the terminal information of the terminal comprises:

18. The method according to claim 16 or 17, wherein the terminal information is a terminal identification ID.

19. The method of claim 16, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

20. A network device comprising a processing unit and a communication unit; the method is applied to a carrier aggregation scenario, wherein,

the processing unit is configured to: determining, for a first carrier or cell or bandwidth part, a first offset of a control resource set, CORESET, of a terminal on the first carrier or cell or bandwidth part with respect to a first reference resource location; determining, for a second carrier or cell or bandwidth part, a second offset of CORESET of the terminal on the second carrier or cell or bandwidth part relative to a second reference resource location;

the communication unit is configured to: and sending first information and second information to the terminal, wherein the first information is used for indicating the first offset corresponding to the first carrier or the cell or the bandwidth part, and the second information is used for indicating the second offset corresponding to the second carrier or the cell or the bandwidth part.

21. The network device of claim 20, wherein the processing unit is further configured to:

22. The network device of claim 21, wherein the processing unit is further configured to:

23. The network device according to claim 21 or 22, wherein the terminal information is a terminal identification ID.

24. The network device of claim 21, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

25. The network device of claim 20, wherein a difference in the first offsets for a plurality of terminals is different from a difference in the second offsets for the plurality of terminals.

26. The network device of claim 20, wherein the first information is carried in common control signaling, Radio Resource Control (RRC) signaling, or Downlink Control Information (DCI); and the number of the first and second groups,

27. The network device of claim 26, wherein when the first information and the second information are carried in the DCI, the first offset and the second offset are used for transmission of a Physical Downlink Control Channel (PDCCH) of an nth slot after the first information and the second information, respectively, and N is greater than or equal to 1.

28. A network device comprising a processing unit and a communication unit; the method is applied to a carrier aggregation scenario, wherein,

the communication unit is configured to: according to a first offset corresponding to the first carrier or the cell or the bandwidth part, sending a first PDCCH to the terminal on the first carrier or the cell or the bandwidth part; and transmitting a second PDCCH to the terminal on the second carrier or cell or bandwidth part according to a second offset corresponding to the second carrier or cell or bandwidth part.

29. The network device of claim 28, wherein the processing unit is further configured to:

30. The network device of claim 29, wherein the processing unit is further configured to:

31. The network device according to claim 29 or 30, wherein the terminal information is a terminal identification ID.

32. The network device of claim 29, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

33. The network device of claim 28, wherein a difference in the first offsets for a plurality of terminals is different from a difference in the second offsets for the plurality of terminals.

34. A terminal comprising a first receiving unit and a second receiving unit; the method is applied to a carrier aggregation scenario, wherein,

the first receiving unit is used for: receiving first information sent by a network device, wherein the first information is used for indicating a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part, which is determined by the network device aiming at the carrier or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal, relative to a first reference resource position; receiving second information sent by a network device, wherein the second information is used for indicating a second offset of a control resource set CORESET of a terminal on a second carrier or a cell or a bandwidth part, which is determined by the network device aiming at carrier or bandwidth part information of the second carrier or the cell or the bandwidth part and/or terminal information of the terminal, relative to a second reference resource position;

the second receiving unit is configured to: receiving a first PDCCH sent by the network equipment on the first carrier or cell or bandwidth part according to the first offset; and receiving a second PDCCH sent by the network device on the second carrier or cell or bandwidth part according to the second offset.

35. The terminal of claim 34, wherein the first information is carried in common control signaling, Radio Resource Control (RRC) signaling, or Downlink Control Information (DCI);

36. The terminal of claim 35, wherein when the first information and the second information are carried in the DCI, the first offset and the second offset are used for receiving a physical downlink control channel PDCCH of an nth slot after the first information and the second information, respectively, and N is greater than or equal to 1.

37. A terminal, comprising a processing unit and a communication unit; the method is applied to a carrier aggregation scenario, wherein,

the processing unit is configured to: determining a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part relative to a first reference resource position according to the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal; determining a second offset of the CORESET of the terminal on a second carrier or a cell or a bandwidth part relative to a second reference resource position according to the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

the communication unit is configured to: receiving a first PDCCH sent by a network device on the first carrier or cell or bandwidth part according to the first offset; and receiving a second PDCCH sent by the network device on the second carrier or cell or bandwidth part according to the second offset.

38. The terminal of claim 37, wherein the processing unit is further configured to:

39. A terminal according to claim 37 or 38, wherein the terminal information is a terminal identification ID.

40. The terminal according to claim 37, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

41. A wireless communication method applied to a carrier aggregation scenario includes:

determining a search space or a CORESET parameter of a second carrier or a cell or a bandwidth part according to the search space or the CORESET parameter of the first carrier or the cell or the bandwidth part;

determining a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part relative to a first reference resource position according to the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal; determining a second offset of the CORESET of the terminal on a second carrier or a cell or a bandwidth part relative to a second reference resource position according to the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

wherein the determining of the parameter of the search space or the control resource set CORESET of the first carrier or the cell or the bandwidth part includes:

determining a search space or a parameter of a CORESET of the first carrier or the cell or the bandwidth part according to the first information;

wherein, the determining the search space of the second carrier or the cell or the bandwidth part or the parameter of the CORESET according to the search space of the first carrier or the cell or the bandwidth part or the parameter of the CORESET includes:

42. The method of claim 41, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part Identification (ID).

43. The method according to claim 41 or 42, wherein the parameters of CORESET of the search space of the first carrier or cell or bandwidth part comprise at least one of:

44. The method of claim 41, wherein the parameters of CORESET of the search space of the second carrier or cell or bandwidth part comprise at least one of:

45. The method of claim 41, wherein determining the search space or CORESET parameter for the second carrier or cell or bandwidth part according to the search space or CORESET parameter for the first carrier or cell or bandwidth part comprises:

46. The method of claim 41, wherein determining the search space or CORESET parameter for the second carrier or cell or bandwidth part according to the search space or CORESET parameter for the first carrier or cell or bandwidth part comprises:

47. The method of claim 41, wherein determining the search space or CORESET parameter for the second carrier or cell or bandwidth part according to the search space or CORESET parameter for the first carrier or cell or bandwidth part comprises:

48. The method of claim 41, wherein determining the search space or CORESET parameter for the second carrier or cell or bandwidth part according to the search space or CORESET parameter for the first carrier or cell or bandwidth part comprises:

49. The method of claim 41, wherein determining the search space or CORESET parameter for the second carrier or cell or bandwidth part according to the search space or CORESET parameter for the first carrier or cell or bandwidth part comprises:

50. The method of claim 41, wherein determining the search space or CORESET parameter for the second carrier or cell or bandwidth part according to the search space or CORESET parameter for the first carrier or cell or bandwidth part comprises:

51. A wireless communication method applied to a carrier aggregation scenario includes:

sending first information to a terminal, where the first information is used to indicate a search space or a parameter of a control resource set, CORESET, of the first carrier, or cell, or bandwidth part, and the terminal determines the search space or the parameter of the CORESET, of the second carrier, or cell, or bandwidth part, according to the search space or the parameter of the CORESET, of the first carrier, or cell, or bandwidth part, the carrier, or cell, or bandwidth part information of the first carrier, or cell, or bandwidth part, and the carrier, or cell, or bandwidth part information of the second carrier, or cell, or bandwidth part.

52. The method of claim 51, wherein the parameters of CORESET of the search space of the first carrier or cell or bandwidth part comprise at least one of:

53. The method according to claim 51 or 52, wherein the parameters of CORESET of the search space of the second carrier or cell or bandwidth part comprise at least one of:

54. The terminal is characterized by comprising a first processing unit and a second processing unit, wherein the first processing unit and the second processing unit are applied to a carrier aggregation scene;

the first processing unit is configured to: determining a search space or a parameter of a control resource set (CORESET) of a first carrier or a cell or a bandwidth part; determining a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part relative to a first reference resource position according to the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

the second processing unit is configured to: determining a search space or a CORESET parameter of a second carrier or a cell or a bandwidth part according to the search space or the CORESET parameter of the first carrier or the cell or the bandwidth part; determining a second offset of the CORESET of the terminal on a second carrier or a cell or a bandwidth part relative to a second reference resource position according to the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

wherein the first processing unit is further to:

wherein the second processing unit is further to:

55. The terminal of claim 54, wherein the carrier or cell or bandwidth part information is a carrier or cell or bandwidth part identification ID.

56. The terminal according to any of claims 54 to 55, wherein the parameters of CORESET for the search space of the first carrier or cell or bandwidth part comprise at least one of:

57. The terminal according to claim 54, wherein the parameters of CORESET of the search space of the second carrier or cell or bandwidth part comprise at least one of:

58. The terminal of claim 54, wherein the first processing unit is further configured to:

59. The terminal of claim 54, wherein the first processing unit is further configured to:

60. The terminal of claim 54, wherein the first processing unit is further configured to:

61. The terminal of claim 54, wherein the first processing unit is further configured to:

62. The terminal of claim 54, wherein the first processing unit is further configured to:

63. The terminal of claim 54, wherein the first processing unit is further configured to:

64. A network device comprising a processing unit and a communication unit; the method is applied to a carrier aggregation scenario, wherein,

the processing unit is configured to: determining a search space or a parameter of a control resource set (CORESET) of a first carrier or a cell or a bandwidth part; determining a first offset of a control resource set CORESET of a terminal on a first carrier or a cell or a bandwidth part relative to a first reference resource position according to the carrier or the cell or the bandwidth part information of the first carrier or the cell or the bandwidth part and/or the terminal information of the terminal; determining a second offset of the CORESET of the terminal on a second carrier or a cell or a bandwidth part relative to a second reference resource position according to the carrier or the cell or the bandwidth part information of the second carrier or the cell or the bandwidth part and/or the terminal information of the terminal;

the communication unit is configured to: sending first information to a terminal, where the first information is used to indicate a search space or a parameter of a control resource set, CORESET, of the first carrier, or cell, or bandwidth part, and the terminal determines the search space or the parameter of the CORESET, of the second carrier, or cell, or bandwidth part, according to the search space or the parameter of the CORESET, of the first carrier, or cell, or bandwidth part, the carrier, or cell, or bandwidth part information of the first carrier, or cell, or bandwidth part, and the carrier, or cell, or bandwidth part information of the second carrier, or cell, or bandwidth part.

65. The network device of claim 64, wherein the parameters of CORESET for the search space of the first carrier or cell or bandwidth portion comprise at least one of:

66. The network device of claim 64 or 65, wherein the parameters of CORESET of the search space of the second carrier or cell or bandwidth part comprise at least one of: