WO2021168628A1

WO2021168628A1 - Search space group switching method, terminal device and network device

Info

Publication number: WO2021168628A1
Application number: PCT/CN2020/076483
Authority: WO
Inventors: 石聪; 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2021-09-02
Also published as: CN114788378A

Abstract

The embodiments of the present application relate to a search space group switching method, a terminal device and a network device. The method comprises: when bandwidth part (BWP) switching occurs, a terminal device determining, according to at least one of a BWP switching indication instruction, first configuration information and a predefined rule, a search space group where the terminal device performs blind detection on a physical downlink control channel (PDCCH) on an activated downlink BWP. By means of the embodiments of the present application, when BWP switching occurs, a UE can determine the manner in which the UE monitors a search space group.

Description

Search space group switching method, terminal equipment and network equipment

Technical field

This application relates to the field of communications, and more specifically, to a search space group switching method, terminal equipment, and network equipment.

Background technique

The New Radio (NR, New Radio) defines the concept of Bandwidth Part (BWP, Bandwidth Part), including downlink BWP and uplink BWP. In a serving cell, user equipment (UE, User Equipment) can be configured with a maximum of 4 downlink BWPs and 4 uplink BWPs. The network can configure two search space (Search Space Set) groups for a certain downlink BWP of the UE (hereinafter the search space group is abbreviated as SS group or SS group), and switch between the two SS groups based on the configuration, or it can also Based on implicit or displayed instructions. In the prior art, when the UE undergoes a BWP handover, it is uncertain how the UE monitors the SS group.

Summary of the invention

The embodiments of the present application provide a search space group switching method, terminal equipment, and communication equipment. When the UE undergoes a BWP handover, the manner in which the UE monitors the SS group can be determined.

The embodiment of the present application proposes a search space group switching method, which is applied to a terminal device, and includes:

When the BWP switching of the bandwidth part of the terminal device occurs, according to at least one of the BWP switching instruction signaling, the first configuration information, and the predefined rule, it is determined that the terminal device blindly detects the search of the physical downlink control channel PDCCH on the activated downlink BWP Space group

The embodiment of the present application proposes a search space group switching method, which is applied to network equipment, and includes:

Sending BWP switching indication signaling, where the BWP switching indication signaling indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.

An embodiment of the present application proposes a terminal device, including:

The determining module is configured to determine that the terminal device blindly detects the PDCCH on the activated downlink BWP according to at least one of BWP switching indication signaling, first configuration information, and predefined rules when the terminal device undergoes BWP switching The search space group.

An embodiment of the application proposes a network device, including:

The instruction sending module is configured to send BWP switching indication signaling, the BWP switching indication signaling indicating that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.

An embodiment of the present application proposes a terminal device, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the search space as described above. The method of group switching.

An embodiment of the present application proposes a communication device, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the second search space as described above The method of group switching.

An embodiment of the present application proposes a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the above-mentioned first search space group switching method.

An embodiment of the present application proposes a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the above-mentioned second search space group switching method.

The embodiment of the present application proposes a computer-readable storage medium for storing a computer program, and the computer program enables a computer to execute the above-mentioned first search space group switching method.

An embodiment of the present application proposes a computer-readable storage medium for storing a computer program, and the computer program enables a computer to execute the above-mentioned second search space group switching method.

An embodiment of the present application proposes a computer program product, including computer program instructions, which cause a computer to execute the above-mentioned first search space group switching method.

An embodiment of the present application proposes a computer program product, including computer program instructions, which cause a computer to execute the above-mentioned second search space group switching method.

An embodiment of the present application provides a computer program that enables a computer to execute the above-mentioned first search space group switching method.

An embodiment of the present application proposes a computer program that enables a computer to execute the above-mentioned second search space group switching method.

In the embodiment of this application, the terminal device determines that the terminal device blindly detects the SS group of the PDCCH on the activated downlink BWP, so that the terminal device can blindly detect the PDCCH on the appropriate SS group when the downlink BWP handover occurs, so that the network and the terminal device The understanding of SS group is the same.

Description of the drawings

Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

Fig. 2 is a flowchart for implementing a search space group switching method according to an embodiment of the present application.

Fig. 3 is a flowchart for implementing another search space group switching method according to an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a terminal device 400 according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a network device 500 according to an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system , New Radio (NR) system, NR system evolution system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, universal mobile telecommunication system (UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, WiFi), next-generation communications (5th-Generation) , 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (MTC), and vehicle to vehicle (V2V) communication, etc. The embodiments of this application can also be applied to these communications system.

Optionally, the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment. Network scene.

The embodiment of the application does not limit the applied frequency spectrum. For example, the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.

The embodiments of this application describe various embodiments in combination with network equipment and terminal equipment. The terminal equipment may also be referred to as User Equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, and remote. Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the public land mobile network (PLMN) network that will evolve in the future.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets and smart jewelry for physical sign monitoring.

A network device can be a device used to communicate with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, or a device in WCDMA. A base station (NodeB, NB), can also be an Evolutional Node B (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in the NR network Or network equipment in the PLMN network that will evolve in the future.

In the embodiment of the present application, the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network equipment (for example, The cell corresponding to the base station. The cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

Figure 1 exemplarily shows one network device 110 and two terminal devices 120. Optionally, the wireless communication system 100 may include multiple network devices 110, and the coverage of each network device 110 may include other numbers. The terminal device 120 is not limited in this embodiment of the application. The embodiments of the present application can be applied to one terminal device 120 and one network device 110, and can also be applied to one terminal device 120 and another terminal device 120.

Optionally, the wireless communication system 100 may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), access and mobility management function (Access and Mobility Management Function, AMF). This is not limited.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

In the prior art, when the UE undergoes a BWP handover, it is uncertain how the UE monitors the SS group. For example, the currently activated downlink BWP is BWP#1, when the UE switches from BWP#1 to BWP#2 (#1 and #2 can refer to the number of the BWP), and two SS groups are configured on BWP#2, then On which SS group the UE blindly detects the physical downlink control channel (PDCCH), there is currently no definition.

The embodiment of the present application proposes a search space group switching method, which can be applied to a terminal device. Fig. 2 is a flowchart of an implementation of a search space group switching method according to an embodiment of the present application, including the following steps:

S210: When a BWP handover occurs in a terminal device, according to at least one of BWP handover indication signaling, first configuration information, and predefined rules, determine that the terminal device blindly detects the physical downlink control channel (PDCCH, Physical Downlink Control Channel) on the activated downlink BWP. Downlink Control Channel) search space group.

Optionally, the foregoing BWP switching indication signaling includes BWP switching downlink control information (DCI, Downlink Control Information) and/or radio resource control (RRC, Radio Resource Control) switching signaling.

Optionally, the above-mentioned BWP switching indication signaling indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.

Optionally, the foregoing first configuration information includes RRC configuration signaling.

Optionally, the foregoing first configuration information configures a default search space group for the downlink BWP;

Correspondingly, the terminal device determines the default search space group of the activated downlink BWP of the terminal device according to the first configuration information or the foregoing predefined rules, then determines the search space in the default search space group, and then blindly based on the determined search space. Check PDCCH.

Optionally, before determining, according to the BWP handover indication signaling, that the terminal device blindly detects the PDCCH search space group on the activated downlink BWP, the method further includes: determining, according to the second configuration information, that the terminal device blindly detects the PDCCH on the activated downlink BWP Search space.

Optionally, the foregoing second configuration information includes RRC configuration signaling.

Optionally, the second configuration information configures a default search space for the downlink BWP, and the default search space belongs to each search space group of the downlink BWP at the same time;

Correspondingly, the terminal device determines a default search space according to the second configuration information, and blindly detects the PDCCH according to the default search space.

Optionally, when the BWP switching indication signaling and the first configuration information exist at the same time, it is determined according to the BWP switching indication signaling that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.

Optionally, when BWP switching indication signaling and a predefined rule exist at the same time, it is determined according to the BWP switching indication signaling that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.

Optionally, when the BWP switching indication signaling and the second configuration information exist at the same time, it is determined according to the BWP switching indication signaling that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.

Specific examples are given below to introduce this application in detail.

Example one:

The UE has undergone a BWP handover, and the UE receives BWP handover DCI or RRC signaling. The BWP handover DCI or RRC signaling contains indication information. The indication information is used to indicate that the UE needs to blindly detect the SS group of the PDCCH on the activated downlink BWP. . The UE uses the SS group to blindly detect the PDCCH according to the indication information.

For example, the UE switches from BWP#1 to BWP#2; BWP#2 is configured with 2 SS groups, namely SS group#1 and SS group#2. The UE receives the BWP handover DCI or RRC signaling, and the BWP handover DCI or RRC signaling includes indication information, which indicates that the UE needs to blindly detect the PDCCH on the SS group#1 of BWP#2. Then, the UE determines the Search Space Set included in the SS group #1 of BWP#2 according to the indication information, and then blindly detects the PDCCH according to these Search Space Sets.

Embodiment two:

Through the RRC configuration signaling, the network configures a default SS group for each downlink BWP configured with an SS group, such as SS group#1; when the UE switches the downlink BWP, the UE uses the default SS group to blindly detect the PDCCH.

For example, BWP#2 is configured with two SS groups, namely SS group#1 and SS group#2; the network configures SS group#1 as the default SS group of BWP#2 through RRC configuration signaling. Then, when the UE switches from BWP#1 to BWP#2, the UE determines the Search Space Set contained in the SS group#1 of BWP#2 according to the RRC configuration signaling, and then blindly detects the PDCCH according to these Search Space Sets.

Further, if the UE receives the BWP handover DCI or RRC signaling, the UE determines the SS group for blind PDCCH detection on the activated downlink BWP according to the BWP handover DCI or RRC signaling; instead of determining it according to the above RRC configuration signaling.

For example, BWP#2 is configured with two SS groups, namely SS group#1 and SS group#2; the network configures SS group#1 as the default SS group of BWP#2 through RRC configuration signaling. The UE switches from BWP#1 to BWP#2, and the UE receives BWP switching DCI or RRC signaling. The BWP switching DCI or RRC signaling includes indication information indicating that the UE is in the SS group# of BWP#2 PDCCH needs to be blindly checked on 2. Then, the UE determines the Search Space Set included in the SS group #2 of BWP#2 according to the instruction information, and then blindly detects the PDCCH according to these Search Space Sets.

Implementation three:

The network configures a Search Space Set for each downlink BWP configured with an SS group through RRC configuration signaling, so that the Search Space Set belongs to each SS group of the downlink BWP at the same time. This Search Space Set may be called the default Search Space Set.

In this way, if the UE undergoes a downlink BWP handover, the UE must at least blindly check the default Search Space Set on the activated downlink BWP; until it receives an indication message from the network indicating that the UE further needs to blindly check the SS group, the UE will follow the indication message Blindly check the PDCCH on the SS group that needs to be blindly checked.

For example, BWP#2 is configured with 2 SS groups, namely SS group#1 and SS group#2. The network configures three Search Space Sets for SS group #1 of BWP#2 through RRC configuration signaling, namely Search Space Set #1, Search Space Set #2, and Search Space Set #3; and the SS group of BWP#2 #2 Configure 3 Search Space Sets, namely Search Space Set #3, Search Space Set #4, and Search Space Set #5. It can be seen that Search Space Set #3 is the above-mentioned default Search Space Set. Then, when the UE switches from BWP#1 to BWP#2, the UE determines Search Space Set #3 according to the RRC configuration signaling, and then blindly detects the PDCCH according to Search Space Set #3.

After that, the UE receives an indication message from the network, and the indication message instructs the UE to blindly detect the PDCCH on SS group#1. Then, the UE determines the Search Space Set included in the SS group #1 of BWP#2 according to the indication message, and then blindly detects the PDCCH according to these Search Space Sets.

For example, BWP#2 is configured with 2 SS groups, namely SS group#1 and SS group#2. The network configures Search Space Set #3 as the above-mentioned default Search Space Set through RRC configuration signaling, that is, Search Space Set #3 belongs to both SS group #1 and SS group #2. The UE switches from BWP#1 to BWP#2, and the UE receives BWP switching DCI or RRC signaling. The BWP switching DCI or RRC signaling includes indication information indicating that the UE is in the SS group# of BWP#2 PDCCH needs to be blindly checked on 2. Then, the UE determines the Search Space Set included in the SS group #2 of BWP#2 according to the instruction information, and then blindly detects the PDCCH according to these Search Space Sets.

Embodiment four:

A rule is predefined, and the predefined rule configures the default SS group for the downlink BWP; when a downlink BWP handover occurs, the UE blindly checks the Search Space Set contained in the SS group on the activated downlink BWP.

Further, if the UE receives the BWP handover DCI or RRC signaling, the UE determines the SS group for blind PDCCH detection on the activated downlink BWP according to the BWP handover DCI or RRC signaling; instead of determining it according to the aforementioned predefined rules.

Or, if the UE receives the RRC configuration signaling, the UE determines the SS group for blind PDCCH detection on the activated downlink BWP according to the RRC configuration signaling; instead of determining it according to the above-mentioned predefined rules.

The BWP handover in the foregoing several embodiments may include the following scenarios:

The UE receives BWP switching DCI or RRC signaling on the currently activated downlink BWP, instructing to switch the currently activated downlink BWP to another downlink BWP; or in a time division duplex (TDD, Time Division Duplex) system, instructing the current The activated uplink BWP is switched to another uplink BWP. At the same time, due to the limitation of the TDD system, the downlink BWP is also switched to a downlink BWP with the same BWP index (index) as the uplink.

The UE is not configured with random access channel (RACH, Random Access Channel) resources on the currently activated uplink BWP, and the UE triggers the RACH process, which causes the UE to switch to the initial uplink BWP, and the downlink BWP is also switched to the initial downlink BWP;

The UE configures RACH resources in the currently activated uplink BWP, and the UE triggers the RACH process, which causes the UE to switch the downlink BWP to a downlink BWP with the same index as the currently activated uplink BWP.

The UE triggers a consistent UL LBT failure event on the currently activated uplink BWP. The UE switches the uplink BWP to another uplink BWP configured with RACH resources, which causes the UE to switch the downlink BWP to one with and Currently, the upstream BWP is activated on the downstream BWP with the same index.

The embodiment of the present application proposes another search space group switching method, which can be applied to network equipment. FIG. 3 is a flowchart of another search space group switching method according to an embodiment of the present application, including the following steps:

S310: Send BWP switching indication signaling, which indicates that the terminal equipment needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.

Optionally, the foregoing method may further include: sending first configuration information that configures a default search space group for the downlink BWP, and the default search space group is a search space for the terminal device to blindly detect the PDCCH on the activated downlink BWP Group.

Optionally, the above method may further include: sending second configuration information, which configures a default search space for the downlink BWP, and the default search space belongs to each search space group of the downlink BWP; the default search space is the terminal device Blindly check the search space of the PDCCH on the activated downlink BWP.

An embodiment of the present application also proposes a terminal device. FIG. 4 is a schematic structural diagram of a terminal device 400 according to an embodiment of the present application, including:

The determining module 410 is configured to determine the blind detection of the PDCCH search by the terminal device on the activated downlink BWP according to at least one of the BWP switching indication signaling, the first configuration information, and the predefined rule when the BWP switching occurs in the terminal device Space group.

Optionally, the BWP handover indication signaling includes BWP handover DCI and/or RRC handover signaling.

Optionally, the BWP switching indication signaling indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.

Optionally, the first configuration information includes RRC configuration signaling.

Optionally, the first configuration information configures a default search space group for the downlink BWP;

The above determining module 410 is configured to determine the default search space group of the activated downlink BWP of the terminal device according to the first configuration information or predefined rules, determine the search space in the default search space group, and blindly determine the search space according to the determined search space. Check PDCCH.

Optionally, the determining module 410 is further configured to determine, according to the second configuration information, the search space for the end device to blindly detect the PDCCH on the activated downlink BWP.

Optionally, the second configuration information includes RRC configuration signaling.

The determining module 410 determines the default search space according to the second configuration information, and blindly detects the PDCCH according to the default search space.

Optionally, in the case where there are both BWP switching indication signaling and the first configuration information, the determining module 410 determines according to the BWP switching indication signaling that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.

Optionally, in the case that BWP switching indication signaling and a predefined rule exist at the same time, the determining module 410 determines according to the BWP switching indication signaling that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.

Optionally, in the case that the BWP switching indication signaling and the second configuration information exist at the same time, the determining module 410 determines according to the BWP switching indication signaling that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.

It should be understood that the above-mentioned and other operations and/or functions of the modules in the terminal device according to the embodiment of the present application are used to implement the corresponding process of the terminal device in the method 200 of FIG.

An embodiment of the present application also proposes a network device. FIG. 5 is a schematic structural diagram of a network device 500 according to an embodiment of the present application, including:

The instruction sending module 510 is configured to send BWP switching indication signaling, which indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.

Optionally, as shown in FIG. 5, the foregoing network device further includes:

The first configuration information sending module 520 is configured to send first configuration information that configures a default search space group for the downlink BWP, and the default search space group is a search space for the terminal device to blindly detect the PDCCH on the activated downlink BWP Group.

Optionally, as shown in FIG. 5, the foregoing network device further includes:

The second configuration information sending module 530 is configured to send second configuration information that configures a default search space for the downlink BWP, and the default search space belongs to each search space group of the downlink BWP; the default search space is the terminal device Blindly check the search space of the PDCCH on the activated downlink BWP.

It should be understood that the above-mentioned and other operations and/or functions of the modules in the network device according to the embodiment of the present application are used to implement the corresponding process of the network device in the method 300 of FIG. 3, and are not repeated here for brevity.

FIG. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, as shown in FIG. 6, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Wherein, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 600 may be a terminal device of an embodiment of the present application, and the communication device 600 may implement corresponding procedures implemented by the terminal device in each method of the embodiments of the present application. For brevity, details are not described herein again.

Optionally, the communication device 600 may be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

FIG. 7 is a schematic structural diagram of a chip 700 according to an embodiment of the present application. The chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 7, the chip 700 may further include a memory 720. Wherein, the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For brevity, details are not described herein again.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

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

The aforementioned processors can be general-purpose processors, digital signal processors (digital signal processors, DSP), ready-made programmable gate arrays (field programmable gate arrays, FPGAs), application specific integrated circuits (ASICs), or Other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the aforementioned general-purpose processor may be a microprocessor or any conventional processor.

The above-mentioned memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM).

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. In other words, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instruction may be transmitted from a website, computer, server, or data center through a cable (Such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

Those skilled in the art can clearly understand that, for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which is not repeated here.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Covered in the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A search space group switching method, applied to terminal equipment, includes:

When the BWP switching of the bandwidth portion of the terminal device occurs, it is determined that the terminal device blindly detects the physical downlink control channel PDCCH on the activated downlink BWP according to at least one of the BWP switching instruction signaling, the first configuration information, and the predefined rule The search space group.
The method according to claim 1, wherein the BWP handover indication signaling includes BWP handover downlink control information DCI and/or radio resource control RRC handover signaling.
The method according to claim 1 or 2, wherein the BWP switching indication signaling indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.
The method according to claim 1, wherein the first configuration information includes RRC configuration signaling.
The method according to claim 1 or 4, wherein the first configuration information configures a default search space group for downlink BWP;

The terminal device determines the default search space group of the activated downlink BWP of the terminal device according to the first configuration information or the predefined rule, determines the search space in the default search space group, and determines the search space according to the determined search Blind detection of PDCCH in space.
The method according to any one of claims 1 to 4, before determining that the terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP according to the BWP handover indication signaling, further comprising: determining the search space group according to the second configuration information The terminal device blindly detects the search space of the PDCCH on the activated downlink BWP.
The method according to claim 6, wherein the second configuration information includes RRC configuration signaling.
The method according to claim 6 or 7, wherein the second configuration information configures a default search space for a downlink BWP, and the default search space belongs to each search space group of the downlink BWP at the same time;

The terminal device determines the default search space according to the second configuration information, and blindly detects the PDCCH according to the default search space.
According to the method according to any one of claims 1 to 8, when the BWP handover indication signaling and the first configuration information exist at the same time, it is determined that the terminal device is activated according to the BWP handover indication signaling. Blind detection of the search space group of the PDCCH on the downlink BWP.
According to the method according to any one of claims 1 to 8, when the BWP handover indication signaling and the predefined rule exist at the same time, it is determined according to the BWP handover indication signaling that the terminal device is in the activated downlink The search space group of the PDCCH is blindly checked on the BWP.
According to the method according to any one of claims 6 to 8, when the BWP handover indication signaling and the second configuration information exist at the same time, it is determined according to the BWP handover indication signaling that the terminal device is active Blind detection of the search space group of the PDCCH on the downlink BWP.
A search space group switching method, applied to network equipment, includes:

Sending BWP switching indication signaling, where the BWP switching indication signaling indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.
The method according to claim 12, further comprising:

Sending first configuration information, where the first configuration information configures a default search space group for the downlink BWP, and the default search space group is a search space group for the terminal device to blindly detect the PDCCH on the activated downlink BWP.
The method according to claim 12 or 13, further comprising:

Send second configuration information, where the second configuration information configures a default search space for the downlink BWP, and the default search space belongs to each search space group of the downlink BWP at the same time; the default search space is the downlink BWP that is activated by the terminal device Search space for blind detection of PDCCH.
A terminal device, including:

The determining module is configured to determine that the terminal device blindly detects the PDCCH on the activated downlink BWP according to at least one of BWP switching indication signaling, first configuration information, and predefined rules when the terminal device undergoes BWP switching The search space group.
The terminal device according to claim 15, wherein the BWP handover indication signaling includes BWP handover DCI and/or RRC handover signaling.
The terminal device according to claim 15 or 16, wherein the BWP switching indication signaling indicates that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.
The terminal device according to claim 17, wherein the first configuration information includes RRC configuration signaling.
The terminal device according to claim 15 or 18, wherein the first configuration information configures a default search space group for downlink BWP;

The determining module is configured to determine the default search space group of the activated downlink BWP of the terminal device according to the first configuration information or the predefined rule, determine the search space in the default search space group, and according to Blind detection of PDCCH in the determined search space.
The terminal device according to any one of claims 15 to 19, wherein the determining module is further configured to determine, according to the second configuration information, a search space for the terminal device to blindly detect the PDCCH on the activated downlink BWP.
The terminal device according to claim 20, wherein the second configuration information includes RRC configuration signaling.
The terminal device according to claim 20 or 21, wherein the second configuration information configures a default search space for a downlink BWP, and the default search space belongs to each search space group of the downlink BWP at the same time;

The determining module determines the default search space according to the second configuration information, and blindly detects the PDCCH according to the default search space.
According to the terminal device according to any one of claims 15 to 22, when the BWP handover indication signaling and the first configuration information exist at the same time, the determining module determines the BWP handover indication signaling The terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.
According to the terminal device according to any one of claims 15 to 22, when the BWP handover indication signaling and the predefined rule exist at the same time, the determining module determines the terminal according to the BWP handover indication signaling The device blindly checks the search space group of the PDCCH on the activated downlink BWP.
According to the terminal device according to any one of claims 20 to 22, when the BWP handover indication signaling and the second configuration information exist at the same time, the determining module determines the BWP handover indication signaling The terminal device blindly detects the search space group of the PDCCH on the activated downlink BWP.
A network device including:

The instruction sending module is configured to send BWP switching indication signaling, the BWP switching indication signaling indicating that the terminal device needs to blindly detect the search space group of the PDCCH on the activated downlink BWP.
The network device according to claim 26, further comprising:

The first configuration information sending module is configured to send first configuration information, where the first configuration information configures a default search space group for a downlink BWP, and the default search space group is a search for a terminal device to blindly detect PDCCH on an activated downlink BWP Space group.
The network device according to claim 26 or 27, further comprising:

The second configuration information sending module is configured to send second configuration information, where the second configuration information configures a default search space for the downlink BWP, and the default search space belongs to each search space group of the downlink BWP at the same time; the default search The space is the search space for the terminal device to blindly detect the PDCCH on the activated downlink BWP.
A terminal device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 11 Methods.
A communication device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 12 to 14 Methods.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 11.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 12 to 14.
A computer-readable storage medium for storing a computer program that enables a computer to execute the method according to any one of claims 1 to 11.
A computer-readable storage medium for storing a computer program that enables a computer to execute the method according to any one of claims 12 to 14.
A computer program product comprising computer program instructions that cause a computer to execute the method according to any one of claims 1 to 11.
A computer program product comprising computer program instructions that cause a computer to execute the method according to any one of claims 12 to 14.
A computer program that causes a computer to execute the method according to any one of claims 1 to 11.
A computer program that causes a computer to execute the method according to any one of claims 12 to 14.