Frequency domain range switching method and apparatus, and device, medium and program product

Abstract

The present application belongs to the technical field of communications. Disclosed are a frequency domain range switching method and apparatus, and a device, a medium and a program product. The method is executed by a terminal device, and comprises: performing switching between a first frequency domain range and a second frequency domain range, wherein a DCI detection method corresponding to the first frequency domain range is to determine, on the basis of first indication information, whether it is necessary to detect DCI, a DCI detection method corresponding to the second frequency domain range is to detect the DCI in a search space configured by a network device, and the second frequency domain range is greater than the first frequency domain range. Different frequency domain ranges correspond to different DCI detection methods, such that switching is performed between a small frequency domain range and a large frequency domain range. When the small frequency domain range is switched to, the aims of energy conservation and consumption reduction can be achieved, and when the large frequency domain range is switched to, it is not necessary to detect first indication information, such that the data transmission delay is small, thereby increasing the speed of data transmission.

Description

Frequency domain range switching methods, apparatuses, devices, media, and program products Technical Field

[0001] This application relates to the field of communication technology, and in particular to a frequency domain range switching method, apparatus, device, medium, and program product. Background Technology

[0002] In the Downlink Control Information (DCI) detection mechanism, the terminal device needs to detect DCI within the search space configured by the network device. How to conserve the terminal device's power during DCI detection is a problem that needs to be addressed.

[0003] Summary of the Invention

[0004] This application provides a frequency domain range switching method, apparatus, device, medium, and program product, the technical solution of which includes at least:

[0005] According to one aspect of the embodiments of this application, a frequency domain range switching method is provided, the method being executed by a terminal device, the method comprising:

[0006] Switching between the first frequency domain range and the second frequency domain range;

[0007] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, while the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range.

[0008] According to another aspect of the embodiments of this application, a frequency domain range management method is provided, the method being executed by a terminal device, the method comprising:

[0009] For at least one of the first frequency domain range and the second frequency domain range, perform activation or deactivation;

[0010] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, while the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range.

[0011] According to another aspect of the embodiments of this application, an information receiving method is provided, the method being executed by a terminal device, the method comprising:

[0012] Receive configuration information, which is used to configure at least one of a first frequency domain range and a second frequency domain range;

[0013] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, while the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range.

[0014] According to another aspect of the embodiments of this application, an information sending method is provided, the method being performed by a network device, the method comprising:

[0015] Send configuration information, which is used to configure at least one of the first frequency domain range and the second frequency domain range;

[0016] The DCI detection method corresponding to the first frequency domain range is that the terminal device determines whether DCI needs to be detected based on the first indication information. The DCI detection method corresponding to the second frequency domain range is that the terminal device detects DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range.

[0017] According to another aspect of the embodiments of this application, a frequency domain range switching device is provided, the frequency domain range switching device comprising:

[0018] A switching module is used to switch between a first frequency domain range and a second frequency domain range;

[0019] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, while the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device. The second frequency domain range is larger than the first frequency domain range.

[0020] According to another aspect of the embodiments of this application, a frequency domain range management device is provided, the frequency domain range management device comprising:

[0021] The execution module is used to perform activation or deactivation on at least one of the first frequency domain range and the second frequency domain range;

[0022] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, while the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device. The second frequency domain range is larger than the first frequency domain range.

[0023] According to another aspect of the embodiments of this application, an information receiving device is provided, the information receiving device comprising:

[0024] A receiving module is used to receive configuration information, which is used to configure at least one of a first frequency domain range and a second frequency domain range.

[0025] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, while the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device. The second frequency domain range is larger than the first frequency domain range.

[0026] According to another aspect of the embodiments of this application, an information transmitting device is provided, the information transmitting device comprising:

[0027] The transmitting module is used to transmit configuration information, which is used to configure at least one of a first frequency domain range and a second frequency domain range.

[0028] The DCI detection method corresponding to the first frequency domain range is that the terminal device determines whether DCI needs to be detected based on the first indication information. The DCI detection method corresponding to the second frequency domain range is that the terminal device detects DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range.

[0029] According to another aspect of the embodiments of this application, a terminal device is provided, the terminal device comprising:

[0030] Processor; transceiver connected to the processor; memory for storing executable instructions of the processor; wherein the processor is configured to load and execute executable instructions to implement frequency domain range switching methods, frequency domain range management methods, or information receiving methods as described above.

[0031] According to another aspect of the embodiments of this application, a network device is provided, the network device comprising:

[0032] A processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the information transmission method as described above.

[0033] According to another aspect of the embodiments of this application, a computer-readable storage medium is provided, which stores at least one program that is loaded and executed by a processor to implement the frequency domain range switching method, frequency domain range management method, information receiving method, or information sending method as described in the above aspects.

[0034] According to another aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when running on a terminal device, are used to implement the frequency domain range switching method or frequency domain range management method or information receiving method of the above aspects; and when running on a network device, are used to implement the information transmission method of the above aspects.

[0035] According to another aspect of the embodiments of this application, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium, a processor obtaining the computer instructions from the computer-readable storage medium, and the processor executing the computer instructions to implement the frequency domain range switching method or frequency domain range management method or information receiving method or information sending method as described in the above aspects.

[0036] The technical solutions provided in this application embodiment may include the following beneficial effects:

[0037] This method switches between a first frequency domain range and a second frequency domain range. The DCI detection method corresponding to the first frequency domain range determines whether DCI detection is needed based on a first indication information. The DCI detection method corresponding to the second frequency domain range detects DCI within the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. By using different DCI detection methods corresponding to different frequency domain ranges, switching between a smaller and a larger frequency domain range is achieved. When switching to a smaller frequency domain range, less power is used compared to a larger frequency domain range, achieving energy saving and consumption reduction. When switching to a larger frequency domain range, the first indication information is not required, resulting in lower data transmission latency and improved data transmission speed. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 shows a schematic diagram of a mobile communication system provided in an exemplary embodiment of this application;

[0040] Figure 2 illustrates a schematic diagram of the correspondence between transmission resources provided in an exemplary embodiment of this application;

[0041] Figure 3 illustrates a schematic diagram of the positional relationship between transmission resources provided in an exemplary embodiment of this application;

[0042] Figure 4 shows a schematic diagram of DCI scheduling data provided in an exemplary embodiment of this application;

[0043] Figure 5 shows a schematic diagram of a DCI transmission method provided in an exemplary embodiment of this application;

[0044] Figure 6 illustrates a schematic diagram of the indication method of the first indication information provided in an exemplary embodiment of this application;

[0045] Figure 7 illustrates a schematic diagram of the configuration transmission resources provided in an exemplary embodiment of this application;

[0046] Figure 8 shows a flowchart of a frequency domain range switching method provided in an exemplary embodiment of this application;

[0047] Figure 9 shows a schematic diagram of a frequency domain range switching method provided in an exemplary embodiment of this application;

[0048] Figure 10 shows a schematic diagram of a frequency domain range switching method provided in an exemplary embodiment of this application;

[0049] Figure 11 shows a schematic diagram of a frequency domain range switching method provided in an exemplary embodiment of this application;

[0050] Figure 12 shows a schematic diagram of a frequency domain range switching method provided in an exemplary embodiment of this application;

[0051] Figure 13 shows a flowchart of a frequency domain range management method provided in an exemplary embodiment of this application;

[0052] Figure 14 shows a flowchart of an information receiving method provided in an exemplary embodiment of this application;

[0053] Figure 15 shows a flowchart of an information transmission method provided in an exemplary embodiment of this application;

[0054] Figure 16 shows a block diagram of a frequency domain range switching device provided in an exemplary embodiment of this application;

[0055] Figure 17 shows a block diagram of a frequency domain range management device provided in an exemplary embodiment of this application;

[0056] Figure 18 shows a block diagram of an information receiving apparatus provided in an exemplary embodiment of this application;

[0057] Figure 19 shows a block diagram of an information transmission apparatus provided in an exemplary embodiment of this application;

[0058] Figure 20 shows a schematic diagram of the structure of a terminal device provided in an exemplary embodiment of this application;

[0059] Figure 21 shows a schematic diagram of the structure of a network device provided in an exemplary embodiment of this application. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail here, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0061] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0062] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0063] The technical solutions described in some embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, evolution systems of NR systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, Non-Terrestrial Networks (NTN) systems, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) systems, cellular IoT systems, cellular passive IoT systems, and can also be applied to subsequent evolution systems of 5G NR systems, as well as 6G and subsequent evolution systems.

[0064] It should be understood that in some embodiments of this application, "5G" may also be referred to as "5G NR" or "NR".

[0065] It should be understood that in the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0066] In this embodiment of the application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0067] In this application embodiment, "protocol" may refer to standard protocols in the field of communication, such as LTE protocol, NR protocol and related protocols applied to future communication systems, and this application does not limit it.

[0068] Figure 1 shows a schematic diagram of a mobile communication system provided in an exemplary embodiment of this application. The mobile communication system includes a network device 110 and a terminal device 120, and may or may not include a terminal device 130; this application does not limit this.

[0069] The network device 110 in this application provides wireless communication functionality. This network device 110 includes, but is not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Home Evolved Node B (or Home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a Wireless Fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, a Transmission Point (TP), or a Transmission and Reception Point (TRP), etc. It can also be used for next-generation Node B (Next Generation Node) systems in 5G mobile communication systems. B, gNB) or transmission point (TRP or TP), or, in a 5G system, one or a group of antenna panels (including multiple antenna panels) of a base station, or, network nodes constituting a gNB or transmission point, such as baseband unit (BBU) or distributed unit (DU), or base stations in Beyond Fifth Generation (B5G) or 6th Generation (6G) mobile communication systems, or core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, etc., or serving cell, primary cell (PCell), primary secondary cell (PSCell), special cell (SpCell), secondary cell (SCell), neighboring cell, etc. of terminal equipment.

[0070] The terminal equipment 120 in this application is also referred to as user equipment (UE), access terminal equipment, user unit, user station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, user terminal equipment, terminal equipment, wireless communication equipment, user agent, or user device. The terminal devices include, but are not limited to: handheld devices, wearable devices, in-vehicle devices, and IoT devices, such as: mobile phones, tablets, e-readers, laptops, desktop computers, televisions, game consoles, mobile internet devices (MID), augmented reality (AR) terminal devices, virtual reality (VR) terminal devices, mixed reality (MR) terminal devices, extended reality (XR) terminal devices, baffle reality (BR) terminal devices, cinematic reality (CR) terminal devices, deceive reality (DR) terminal devices, wearable devices, controllers, controllers, wireless terminal devices in industrial control, wireless terminal devices in self-driving, wireless terminal devices in remote medical care, wireless terminal devices in smart grids, wireless terminal devices in transportation safety, and smart city technologies. Wireless terminal devices in cities, smart homes, remote medical surgeries, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), Set-Top Boxes (STBs), Customer Premise Equipment (CPEs), etc.

[0071] In some embodiments, network device 110 and terminal device 120 communicate with each other through some air interface technology, such as the Uu interface.

[0072] For example, there are two communication scenarios between network device 110 and terminal device 120: uplink communication scenario and downlink communication scenario. Uplink communication, or uplink transmission, refers to terminal device 120 sending signals or data to network device 110; downlink communication, or downlink transmission, refers to network device 110 sending signals or data to terminal device 120.

[0073] In some embodiments, terminal device 120 and terminal device 130 communicate with each other through some air interface technology, such as the PC5 interface.

[0074] For example, there are two communication scenarios between terminal device 120 and terminal device 130: a first side-by-side communication scenario and a second side-by-side communication scenario. The first side-by-side communication refers to terminal device 120 sending signals or data to terminal device 130; the second side-by-side communication refers to terminal device 130 sending signals or data to terminal device 120.

[0075] In some embodiments, terminal device 120 and terminal device 130 are both within network coverage and located in the same cell, or terminal device 120 and terminal device 130 are both within network coverage but located in different cells, or terminal device 120 is within network coverage but terminal device 130 is outside network coverage.

[0076] In some embodiments of this application, "NR" may also be referred to as a 5G NR system or a 5G system. The 5G mobile communication system may include non-standalone (NSA) and / or standalone (SA) networking.

[0077] The technical solutions provided in the embodiments of this application can also be applied to Machine-Type Communication (MTC), Long Term Evolution-Machine (LTE-M) technology, Device-to-Device (D2D) networks, Machine-to-Machine (M2M) networks, Internet of Things (IoT) networks, or other networks. Among them, IoT networks may include, for example, vehicle-to-everything (V2X) networks. The communication methods in V2X systems are collectively referred to as Vehicle to X (V2X), where X can represent anything. For example, V2X may include: Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure (V2I) communication, Vehicle to Pedestrian (V2P) communication, or Vehicle to Network (V2N) communication, etc.

[0078] The mobile communication system provided in this application embodiment can be applied to at least one of the following communication scenarios, but not limited to: uplink communication scenario, downlink communication scenario, and sidelink (SL) communication scenario.

[0079] The following section describes the relevant technologies involved in the embodiments of this application:

[0080] • Physical Downlink Control Channel (PDCCH) Detection:

[0081] Network devices send Downlink Control Information (DCI) to terminal devices. DCI is used for downlink scheduling, such as scheduling the Physical Downlink Shared Channel (PDSCH), or uplink granting, such as scheduling the Physical Uplink Shared Channel (PUSCH). Alternatively, DCI can be used to transmit common control information, carried via PDCCH. Network devices configure a search space for terminal devices. Different aggregation levels (ALs) can be configured, and at each aggregation level, the number of candidate PDCCHs the terminal device needs to monitor is configured. Terminal devices need to perform PDCCH detection within the search space. The maximum number of PDCCHs a terminal device can monitor in a single time slot is related to the subcarrier spacing. For example, with a 15kHz subcarrier spacing, the maximum number of PDCCHs a terminal device can monitor in a single time slot is 44. Referring to Table 1, when the subcarrier spacing parameter μ takes values ​​of 0, 1, 2, and 3, it corresponds to subcarrier spacings of 15kHz, 30kHz, 60kHz, and 120kHz, respectively.

[0082] Table 1

[0083] In 5G NR systems, DCI uses polar coding. Each time the terminal detects PDCCH, it needs to perform decoding, which leads to higher power consumption and increased processing latency.

[0084] A PDCCH's transmission resources can include M1 Control Channel Elements (CCEs), corresponding to different aggregation levels. For example, M1 = 1, 2, 4, 8, 16. The relationship between aggregation level and the number of CCEs is shown in Table 2. Each CCE can include M2 ​​Resource Element Groups (REGs). For example, M2 = 6. One REG corresponds to one PRB in the frequency domain and one Orthogonal Frequency Division Multiplexing (OFDM) symbol in the time domain. The transmission reliability varies depending on the number of CCEs occupied by the PDCCH. For example, the more CCEs a PDCCH occupies, the higher its transmission reliability.

[0085] Table 2

[0086] • Optimization of terminal device complexity:

[0087] Terminal devices, often simply referred to as terminals, are designed to support extremely high peak data rates. Therefore, the requirements for terminal capabilities are quite high. The LTE standard defines a maximum single-carrier bandwidth of 20MHz, with larger bandwidths achieved through multi-carrier aggregation. 5G NR ultimately defines a maximum carrier bandwidth of 100MHz for frequencies below 6GHz, five times that of LTE, while the maximum carrier bandwidth for millimeter-wave frequencies is 400MHz. The required multiple-input multiple-output (MIMO) antenna configuration for NR has also been further increased. The reference antenna configuration for LTE terminals is one transmit and two receive, while related technologies require dual transmit and four receive antennas at frequencies above 2500MHz. Furthermore, these technologies do not support half-duplex operation, requiring data processing across all uplink and downlink time slots.

[0088] However, some NR applications do not require such high processing power in terms of capacity and speed. These applications include the Internet of Things (IoT), industrial automation, and wearable devices. These scenarios demand communication hardware with low size and power consumption; lightweight capability is a characteristic of these terminals. Based on this consideration, a compact terminal standard with reduced capabilities was introduced.

[0089] The compact terminal standard reduces some mandatory capabilities. Corresponding terminal function groups are defined for these capabilities. The compact terminal standard also further optimizes terminal identification, the access process, and power consumption in measurements to adapt to relevant application scenarios. This compact terminal design significantly reduces the complexity of the terminal hardware. It also correspondingly reduces the terminal's power consumption, thus achieving energy saving.

[0090] In the DCI detection mechanism, the terminal device needs to detect DCI within the search space configured by the network device. How to conserve the terminal device's power during DCI detection is a problem that needs to be addressed. To solve this problem, this application provides a new DCI detection method, which can be referred to as the first DCI detection method, while the DCI detection method in related technologies is referred to as the second DCI detection method.

[0091] In some embodiments, the first DCI detection method is the DCI detection method corresponding to the first frequency domain range, and the first DCI detection method determines whether DCI needs to be detected based on the first indication information.

[0092] In some embodiments, the second DCI detection method is a DCI detection method corresponding to a second frequency domain range. The second DCI detection method detects DCI within a search space configured by the network device, where the second frequency domain range is larger than the first frequency domain range. In the second DCI detection method, the network device configures a search space, and the terminal device performs DCI detection within this search space. The search space contains multiple candidate transmission resources that can be used to transmit the PDCCH. The terminal device does not know which candidate transmission resource the network device will use to transmit the PDCCH; therefore, the terminal needs to detect all possible candidate transmission resources for PDCCH transmission. Hence, it is also called DCI or PDCCH blind detection. In the embodiments of this application, the second DCI detection method is, for example, the DCI detection method in an LTE system or a DCI detection method in an NR system.

[0093] 1.1 Characteristics of the first frequency domain range

[0094] In some embodiments, the first frequency domain includes a first transmission resource and a second transmission resource, and the first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI.

[0095] In some embodiments, the second frequency domain range includes the first frequency domain range, that is, the first frequency domain range is located within the second frequency domain range.

[0096] In some embodiments, the second frequency domain range does not include the first frequency domain range, that is, the first frequency domain range and the second frequency domain range do not overlap or partially overlap.

[0097] Within the first frequency domain, the terminal device determines whether DCI detection is needed on the second transmission resource based on the detection result of the first indication information. The first indication information is carried by a sequence, and the complexity of detecting the sequence is far less than the complexity of detecting DCI. This is because the sequence can be detected through relevant logical operations, while DCI detection requires channel estimation, demodulation, decoding, and other processing. Therefore, compared to blindly detecting DCI in the second frequency domain, the terminal device is more energy-efficient when operating in the first frequency domain.

[0098] Optionally, the first DCI detection method may also be referred to as at least one of the following: a DCI detection method that determines whether DCI needs to be detected based on first indication information; a DCI detection method that determines whether DCI needs to be detected based on a sequence; a DCI detection method that determines whether DCI needs to be detected based on first information associated with the sequence; a DCI detection method that determines whether DCI needs to be detected on a second transmission resource based on first indication information on a first transmission resource; a DCI detection method that determines whether DCI needs to be detected on a second transmission resource based on a sequence on a first transmission resource. The embodiments of this application do not limit this, but only use the first DCI detection method as an example for explanation.

[0099] 1.2 Correspondence between the first and second transmission resources

[0100] In some embodiments, the correspondence may also be referred to as the association.

[0101] In some embodiments, the first transmission resource and the second transmission resource have a one-to-one correspondence, that is, one first transmission resource corresponds to one second transmission resource; or the first transmission resource and the second transmission resource have a many-to-one correspondence, that is, multiple first transmission resources correspond to the same second transmission resource.

[0102] Figure 2 illustrates a schematic diagram of the correspondence between transmission resources provided in an exemplary embodiment of this application.

[0103] In Figure 2(a), the first transmission resource and the second transmission resource have a one-to-one correspondence, that is, one first transmission resource corresponds to one second transmission resource; in Figure 2(b), the first transmission resource and the second transmission resource have a many-to-one correspondence, that is, two first transmission resources correspond to the same second transmission resource.

[0104] 1.3 Locational Relationship between the First and Second Transmission Resources

[0105] In some embodiments, the location of the second transmission resource is determined based on the location of the first transmission resource; or, there is a predefined relationship between the location of the second transmission resource and the location of the first transmission resource based on a communication protocol; or, there is a pre-configured relationship between the location of the second transmission resource and the location of the first transmission resource based on a network.

[0106] By way of example and not limitation, the positional relationship between the first transmission resource and the second transmission resource includes at least one of the following:

[0107] The first transmission resource and the second transmission resource are not adjacent in the time domain; the first transmission resource and the second transmission resource are adjacent in the time domain; the start position of the time domain of the first transmission resource is the same as the start position of the time domain of the second transmission resource; the start position of the frequency domain of the first transmission resource is the same as the start position of the frequency domain of the second transmission resource; the center position of the frequency domain of the first transmission resource is the same as the center position of the frequency domain of the second transmission resource; the end position of the frequency domain of the first transmission resource is the same as the end position of the frequency domain of the second transmission resource.

[0108] The temporal adjacency between the first transmission resource and the second transmission resource means that the temporal end position of the first transmission resource is adjacent to the temporal start position of the second transmission resource.

[0109] Figure 3 illustrates a schematic diagram of the positional relationship between transmission resources provided in an exemplary embodiment of this application.

[0110] In part (a) of Figure 3, the first and second transmission resources are not adjacent in the time domain, and the frequency domain center position of the first transmission resource is the same as that of the second transmission resource; in part (b) of Figure 3, the first and second transmission resources are adjacent in the time domain, and the frequency domain center position of the first transmission resource is the same as that of the second transmission resource; in part (c) of Figure 3, the time domain start position of the first transmission resource is the same as that of the second transmission resource, and the frequency domain start position of the first transmission resource is the same as that of the second transmission resource; in part (d) of Figure 3, the time domain start position of the first transmission resource is the same as that of the second transmission resource, and the frequency domain center position of the first transmission resource is the same as that of the second transmission resource; in part (e) of Figure 3, the time domain start position of the first transmission resource is the same as that of the second transmission resource, and the frequency domain end position of the first transmission resource is the same as that of the second transmission resource.

[0111] 1.4 Second Transmission Resources

[0112] In some embodiments, the second transmission resource is used to transmit DCI or downlink data, and the terminal device determines to detect DCI or downlink data on the second transmission resource based on the first indication information.

[0113] 1.4.1 The second transmission resource is used to transmit DCI.

[0114] First indication information is transmitted on a first transmission resource, and the first indication information indicates that DCI is transmitted on a second transmission resource. Optionally, DCI is used to schedule the transmission of uplink data (e.g., PUSCH), or to schedule the transmission of downlink data (e.g., PDSCH), or for other purposes, which are not limited in this application embodiment.

[0115] Figure 4 shows a schematic diagram of DCI scheduling data provided in an exemplary embodiment of this application.

[0116] In Figure 4(a), when the DCI is used to schedule downlink data, the DCI indicates that downlink data should be transmitted on the third transmission resource. The DCI can also indicate parameters for downlink data transmission, which the terminal device uses to perform downlink data reception based on the indicated parameters.

[0117] In Figure 4(b), when the DCI is used to schedule uplink data, the DCI indicates that uplink data should be transmitted on the fourth transport resource. The DCI can also indicate parameters for uplink data transmission, which the terminal device uses to perform uplink data transmission based on the indicated parameters.

[0118] In some embodiments, DCI is carried by PDCCH, and the network device configures the search space in the second transport resource by sending network configuration information, and the terminal device detects PDCCH in the search space.

[0119] Optionally, DCI is carried on PDCCH or PDSCH. Figure 5 shows a schematic diagram of a DCI transmission method provided in an exemplary embodiment of this application.

[0120] In some embodiments, DCI is carried by a Medium Access Control Element (MAC CE), and the MAC CE is carried by a PDSCH.

[0121] For example, in Figure 5(a), the MAC CE is carried via PDSCH, and the MAC CE carries the DCI; in Figure 5(b), the DCI is carried via PDCCH.

[0122] In some embodiments, at least one of the following information is determined based on protocol predefined information or network configuration information:

[0123] The DCI format; the number of bits corresponding to the DCI; the Radio Network Temporary Identifier (RNTI) corresponding to the DCI; the encoding method corresponding to the DCI; the encoding rate corresponding to the DCI; the number of CCEs corresponding to the DCI; the aggregation level corresponding to the DCI; and the number of candidate PDCCHs associated with the aggregation level.

[0124] The number of bits corresponding to DCI corresponds to the maximum number of bits, and the encoding methods include Polar codes, Low Density Parity Check (LDPC) codes, or small block length encoding.

[0125] 1.4.2 The second transmission resource is used to transmit the first downlink data.

[0126] In some embodiments, the second transport resource is used to transmit downlink data, which is carried by the PDSCH.

[0127] Since the first indication information does not include transmission resource indication information and transmission parameter indication information, the transmission parameters corresponding to the downlink data are determined based on protocol predefined information or network configuration information.

[0128] In some embodiments, where the first indication information is used to indicate the transmission of first downlink data on a second transport resource, at least one of the following information is determined based on protocol predefined information or network configuration information:

[0129] The Transport Block Size (TBS) of the first downlink data; the modulation scheme or MCS level of the first downlink data; the coding scheme of the first downlink data; the coding rate of the first downlink data; the MCS table of the first downlink data; the number of layers of the first downlink data; the antenna port information of the first downlink data; the rate matching information of the first downlink data; the number of Physical Resource Blocks (PRBs) included in the resource block group; the PRB binding size indication information; the transmission configuration indication message; and the DMRS information of the first downlink data.

[0130] The TBS can be configured in the network device. If the data packet to be transmitted is smaller than the TBS, the data packet size can be made equal to the TBS by padding redundant bits.

[0131] Optionally, the DMRS information corresponding to the downlink data is determined through protocol predefined information or network configuration information. The DMRS information includes at least one of the following: the time domain location of the DMRS; the frequency domain location of the DMRS; the pattern of the DMRS; and DMRS sequence initialization information. Optionally, the DMRS information corresponding to the first downlink data is determined based on protocol predefined information, network configuration information, or first indication information.

[0132] In some embodiments, the second transmission resource is used only for transmitting small data packets, or the second transmission resource is used only for small data packet transmission (SDT).

[0133] 1.5 Characteristics of the First Indication Information

[0134] In some embodiments, the first indication information is indicated by a sequence, or it can be understood that the first indication information is carried by a sequence, and the sequence type used to carry the first indication information includes at least one of complex (vector) sequences and real sequences;

[0135] Among them, complex (vector) sequences include at least one of the following: constant envelope zero autocorrelation (CAZAC) sequences; ZC (Zaddoff Chu) sequences; real sequences include at least one of the following: pseudo-random sequences; Gold sequences; m sequences; Hadamard sequences.

[0136] Sending the first indication information in a sequential manner allows the terminal device to determine the information indicated by the first indication information based on sequence detection (such as sequence correlation detection), avoiding decoding processing and reducing the power consumption and processing latency of the terminal device.

[0137] In some embodiments, the first indication information is carried by a first sequence, the length of which is determined by at least one of the following methods: based on protocol predefined information; based on configuration information sent by the network; or based on the size of the frequency domain resources included in the first transmission resources.

[0138] For example, the first transmission resource includes K subcarriers or resource elements (REs), the sequence length L is the largest prime number less than or equal to K, or is the largest prime number less than or equal to (K / A), and A is a preset positive integer, such as A = 2 or 4.

[0139] For example, the sequence length L is the largest prime number less than or equal to K, where K = 60 and L = 59; or K = 72 and L = 71; or K = 120 and L = 113.

[0140] 1.6 Determine the transmission content on the second transmission resource based on the first information associated with the first indication information.

[0141] In some embodiments, the first indication information is carried by first information associated with the first sequence, and the first information is determined based on at least one of the following: the length corresponding to the first sequence; the frequency domain resource information corresponding to the first sequence; the time domain resource information corresponding to the first sequence; the sequence index corresponding to the first sequence; and the sequence group index corresponding to the first sequence.

[0142] For example, different lengths of the first sequence correspond to different values, different states, or different sequences, thereby indicating different transmission content on the second transmission resource.

[0143] For example, different frequency domain resources corresponding to the first sequence correspond to different values, different states, or different sequences, thereby indicating different transmission content on the second transmission resource.

[0144] For example, different time-domain resources corresponding to the first sequence correspond to different values, different states, or different sequences, thereby indicating different transmission content on the second transmission resource.

[0145] For example, different sequence groups corresponding to the first sequence correspond to different values, different states, or different sequences, thereby indicating different transmission content on the second transmission resource.

[0146] In some embodiments, the transmission content on the second transmission resource is determined based on different first information associated with the first indication information. This can be understood as indicating the transmission content on the second transmission resource based on different first information associated with the first indication information.

[0147] Optionally, there are five different indication methods that can be used to indicate the content transmitted on the second transmission resource.

[0148] Indication Method 1: Indicate the transmission content on the second transmission resource based on the length corresponding to the first sequence;

[0149] Indication Method 2: Indicate the transmission content on the second transmission resource based on the frequency domain resources corresponding to the first sequence;

[0150] Indication Method 3: Indicate the transmission content on the second transmission resource based on the time domain resource corresponding to the first sequence;

[0151] Indication Method 4: Indicate the transmission content on the second transmission resource based on the sequence index corresponding to the first sequence;

[0152] Indication Method 5: Indicate the transmission content on the second transmission resource based on the sequence group index corresponding to the first sequence.

[0153] In some embodiments, the content transmitted on the second transmission resource includes at least one of the following:

[0154] No transmission on the second transmission resource; DCI or PDCCH is transmitted on the second transmission resource; first downlink data is transmitted on the second transmission resource; DCI and first downlink data are transmitted on the second transmission resource.

[0155] 1.6.1 For indication method one: Indicate the transmission content on the second transmission resource based on the length corresponding to the first sequence.

[0156] There is a correlation or correspondence between sequence length and transmitted content, which is determined based on protocol predefined information or network configuration information.

[0157] For example, the length corresponding to the first sequence indicates a transmission content on the second transmission resource, the length index value 1 indicates that there is no transmission on the second transmission resource, the length index value 2 indicates that DCI or PDCCH is transmitted on the second transmission resource, the length index value 3 indicates that the first downlink data is transmitted on the second transmission resource, etc. This application does not limit this.

[0158] 1.6.2 Regarding indication method two: Indicating the transmission content on the second transmission resource based on the frequency domain resource corresponding to the first sequence.

[0159] There is an association or correspondence between the frequency domain resources corresponding to the sequence and the transmitted content. This association or correspondence is determined based on protocol predefined information or network configuration information.

[0160] The frequency domain resources corresponding to the first sequence can be understood as the frequency domain resources corresponding to the first transmission resources where the first sequence is located; or, they can be understood as the frequency domain resources corresponding to the first sequence in the first transmission resources; or, they can be understood as the frequency domain resources carrying the first sequence in the first transmission resources.

[0161] For example, based on the frequency domain resource corresponding to the first sequence, a transmission content on the second transmission resource can be indicated. Frequency domain resource index value 1 indicates that there is no transmission on the second transmission resource. Frequency domain resource index value 2 indicates that DCI or PDCCH is transmitted on the second transmission resource. Frequency domain resource index value 3 indicates that the first downlink data is transmitted on the second transmission resource. This application does not limit this.

[0162] 1.6.3 Regarding indication method three: Indicating the transmission content on the second transmission resource based on the time-domain resource corresponding to the first sequence.

[0163] There is an association or correspondence between the time-domain resources and the transmitted content corresponding to the sequence, and this association or correspondence is determined based on protocol predefined information or network configuration information.

[0164] The time-domain resources corresponding to the first sequence can be understood as the time-domain resources corresponding to the first transmission resources where the first sequence is located; or, they can be understood as the time-domain resources corresponding to the first sequence in the first transmission resources; or, they can be understood as the time-domain resources that carry the first sequence in the first transmission resources.

[0165] For example, based on the time-domain resource corresponding to the first sequence, a transmission content is indicated on the second transmission resource; time-domain resource index value 1 indicates that there is no transmission on the second transmission resource; time-domain resource index value 2 indicates that DCI or PDCCH is transmitted on the second transmission resource; time-domain resource index value 3 indicates that the first downlink data is transmitted on the second transmission resource, etc. This application does not limit this.

[0166] 1.6.4 Regarding indication method four: Indicating the transmission content on the second transmission resource based on the sequence index corresponding to the first sequence.

[0167] There is an association or correspondence between the sequence index corresponding to the sequence and the transmitted content. This association or correspondence is determined based on protocol predefined information or network configuration information.

[0168] For example, the sequence index corresponding to the first sequence indicates a transmission content on the second transmission resource, sequence index 1 indicates no transmission on the second transmission resource, sequence index 2 indicates DCI or PDCCH transmission on the second transmission resource, sequence index 3 indicates first downlink data transmission on the second transmission resource, etc. This application does not limit this.

[0169] 1.6.5 Regarding indication method five: Indicating the transmission content on the second transmission resource based on the sequence group index corresponding to the first sequence.

[0170] There is an association or correspondence between the sequence group index corresponding to the sequence and the transmitted content. This association or correspondence is determined based on protocol predefined information or network configuration information.

[0171] For example, the sequence group index corresponding to the first sequence indicates a transmission content on the second transmission resource, sequence group index 1 indicates no transmission on the second transmission resource, sequence group index 2 indicates DCI or PDCCH transmission on the second transmission resource, sequence group index 3 indicates first downlink data transmission on the second transmission resource, etc. This application does not limit this.

[0172] The first indication information is carried in a sequence, which allows the terminal device to determine the content indicated by the first indication information based on sequence detection. Based on sequence detection, the transmission behavior on the subsequent second transmission resource can be determined, and decoding processing is avoided, reducing the power consumption and processing latency of the terminal device.

[0173] 1.7 The first indication information is carried by a sequence.

[0174] In some embodiments, the first indication information is carried by a sequence, and the sequence index of the sequence is associated with the transmitted content.

[0175] Optionally, the correspondence between sequence indexes and transmitted content can be determined through protocol predefined information or network configuration information.

[0176] For example, the first indication information is carried by four sequences, and the correspondence between the sequence index and the transmitted content is shown in Table 3:

[0177] Table 3

[0178] For example, when the sequence index is 0, the corresponding transmission content is "no transmission on the second transmission resource"; when the sequence index is 1, the corresponding transmission content is "transmission of the second DCI on the second transmission resource"; when the sequence index is 2, the corresponding transmission content is "transmission of the first downlink data on the second transmission resource"; and when the sequence index is 3, the corresponding transmission content is "transmission of the first downlink data and the second DCI on the second transmission resource". The sequence index is represented in decimal, but in actual implementation, it can be represented in binary. This embodiment does not limit this.

[0179] 1.8 The first indication information is used to indicate the first value.

[0180] In some embodiments, the first indication information is used to indicate a first value, which is associated with the transmitted content.

[0181] Optionally, the correspondence between the first value and the transmitted content is determined through protocol predefined information or network configuration information.

[0182] For example, the first indication information is used to indicate four values ​​of the first value, and the correspondence between the first value and the transmitted content is shown in Table 4:

[0183] Table 4

[0184] For example, when the first value is 0, the corresponding transmission content is "no transmission on the second transmission resource"; when the first value is 1, the corresponding transmission content is "transmission of the second DCI on the second transmission resource"; when the first value is 2, the corresponding transmission content is "transmission of the first downlink data on the second transmission resource"; and when the first value is 3, the corresponding transmission content is "transmission of the first downlink data and the second DCI on the second transmission resource". The first value is represented in decimal, but in actual implementation, it can be represented in binary. This embodiment does not limit this.

[0185] 1.9 Method of Instruction for the First Instruction Message

[0186] Figure 6 illustrates a schematic diagram of the indication method of the first indication information provided in an exemplary embodiment of this application. The first indication information is used to indicate at least one of the following:

[0187] 1.9.1 Method 1: Indicates that there is no transmission on the second transmission resource.

[0188] If the first indication information indicates that there is no transmission on the second transmission resource, the terminal device does not need to detect on the second transmission resource.

[0189] Optionally, a first value, a first state, or a first sequence is determined based on the first indication information, and it is determined that there is no transmission on the second transmission resource based on the first value, the first state, or the first sequence.

[0190] Here, the first value is a single bit value or a group of bit values, such as 1 or 0; the first state is an on or off state, which can be represented by a high or low voltage level or a high or low energy level, or by a bit value; the first sequence is a sequence used to represent the first indication information, such as the ZC sequence. The representation principles of other values, states, and sequences, such as the second value, second state, second sequence, third value, third state, and third sequence, are the same and will not be repeated.

[0191] 1.9.2 Mode 2: Instructing the transmission of DCI or PDCCH on the second transport resource

[0192] In some embodiments, DCI or PDCCH is received on a second transport resource based on first indication information.

[0193] When the first indication information indicates that DCI or PDCCH is transmitted on the second transmission resource, the terminal device detects DCI or PDCCH on the second transmission resource. For example, a search space is configured on the second transmission resource, and the terminal device detects DCI or PDCCH in the search space. In some embodiments, the detection complexity of the search space is low, such as configuring only one aggregation level in the search space, and configuring 2 candidate PDCCHs under the aggregation level, that is, the terminal device only needs to perform a maximum of 2 PDCCH detections in the search space.

[0194] Optionally, a second value, a second state, or a second sequence is determined based on the first indication information, and DCI or PDCCH is transmitted on the second transmission resource based on the second value, the second state, or the second sequence.

[0195] 1.9.3 Mode 3: Instruct the second transmission resource to transmit the first downlink data.

[0196] In some embodiments, first downlink data is received on a second transmission resource based on first indication information.

[0197] Optionally, if there is no indication that the first downlink data is being transmitted on the second transmission resource, it is not necessary to detect the first downlink data on the second transmission resource.

[0198] When the first instruction information indicates that the first downlink data is to be transmitted on the second transmission resource, the terminal device detects the first downlink data on the second transmission resource.

[0199] Optionally, the first downlink data is carried via PDSCH.

[0200] Optionally, a third value, a third state, or a third sequence is determined based on the first indication information, and the first downlink data is transmitted on the second transmission resource based on the third value, the third state, or the third sequence.

[0201] 1.9.4 Mode 4: Instructs the transmission of DCI and first downlink data on the second transmission resource.

[0202] In some embodiments, based on the first indication information, DCI and first downlink data are simultaneously received on the second transmission resource; or, based on the first indication information, downlink control channel and first downlink data are simultaneously received on the second transmission resource.

[0203] As an example and not a limitation, DCI is used to schedule second downlink data; or, DCI is used to schedule second uplink data.

[0204] Wherein, the DCI used for scheduling the second downlink data includes: the DCI used to indicate the transmission resources of the second downlink data, and / or, the DCI used to indicate the transmission parameters of the second downlink data; the DCI used for scheduling the second uplink data includes: the DCI used to indicate the transmission resources of the second uplink data, and / or, the DCI used to indicate the transmission parameters of the second uplink data.

[0205] 1.10 Types of First and Second Transmission Resources

[0206] In some embodiments, the first transmission resource and the second transmission resource are common transmission resources shared by multiple terminal devices; or, the first transmission resource and the second transmission resource are group transmission resources shared by a group of terminal devices; or, the first transmission resource and the second transmission resource are proprietary transmission resources used by a single terminal device.

[0207] In some embodiments, when the first transmission resource and the second transmission resource are common transmission resources shared by multiple terminal devices or group transmission resources shared by a group of terminal devices, the second transmission resource is used to transmit common DCI and / or common downlink data. The common DCI and / or common downlink data is used to transmit at least one of the following information: broadcast information, system information, paging information, and random access response information.

[0208] In some embodiments, the network device configures the same first transmission resource and the same second transmission resource for multiple terminal devices, that is, the first transmission resource and the second transmission resource are shared by multiple terminal devices; the network device configures the same sequence for multiple terminal devices, or the network device configures their respective corresponding sequences for multiple terminal devices, and the terminal devices detect the first indication information on the first transmission resource based on the configured sequence.

[0209] For example, the network device configures Sequence 1 for terminal device 1 and Sequence 1 for terminal device 2. Both terminal device 1 and terminal device 2 detect first indication information on the first transmission resource based on Sequence 1.

[0210] For example, the network device configures sequence 1 for terminal device 1 and sequence 2 for terminal device 2. Terminal device 1 detects first indication information on the first transmission resource based on sequence 1, and terminal device 2 detects first indication information on the first transmission resource based on sequence 2.

[0211] The network device is configured with a first transmission resource and a second transmission resource for transmitting common DCI and / or common downlink data. A first indication information is transmitted on the first transmission resource, the sequence corresponding to the first indication information being a common sequence. Common DCI and / or common downlink data are transmitted on the second transmission resource.

[0212] In some embodiments, multiple terminal devices detect whether there is first indication information on the first transmission resource based on the same common sequence.

[0213] For example, the network device configures a common sequence 1 for terminal device 1 and terminal device 2, and terminal device 1 and terminal device 2 detect first indication information on the first transmission resource based on the common sequence 1.

[0214] If the terminal device detects the first indication information, it detects common DCI and / or common downlink data on the second transmission resource based on the first indication information. The common DCI and common downlink data are used to transmit at least one of the following information: broadcast information, system information, paging information, and random access response information.

[0215] This includes broadcast information such as Master Information Block (MIB) information; system information such as System Information Block (SIB) information; paging information such as paging information; and random access response information such as Random Access Response (RAR) information.

[0216] In some embodiments, the network device is configured with common transport resources, including common first transport resources and common second transport resources, for transmitting common DCI and common downlink data.

[0217] The common first transmission resource and the common second transmission resource can also be referred to as cell-specific first transmission resource and cell-specific second transmission resource, or common first transmission resource and common second transmission resource.

[0218] In some embodiments, the network device configures a group transmission resource shared by a group of terminal devices, including a first group transmission resource and a second group transmission resource, wherein the second group transmission resource is used to transmit group common DCI and group common downlink data.

[0219] Optionally, the terminal equipment group includes all terminal equipment within the cell, and the first transmission resource of the group and the second transmission resource of the group can also be referred to as the shared first transmission resource and the shared second transmission resource.

[0220] For example, public DCI and public downlink data are used to transmit at least one of the following: slot format information, channel occupation time duration information, available resource block set information, search space set group switching information, pre-emption indication information, transmission power control (TPC) information, uplink transmission cancellation indication information, and wake-up indication information.

[0221] In some embodiments, the network device configures a user-specific first transmission resource and a user-specific second transmission resource for each terminal device, which are used to transmit the user-specific DCI and user-specific downlink data corresponding to each terminal device, respectively.

[0222] In some embodiments, the proprietary first transmission resources of different terminal devices do not overlap, completely overlap, or partially overlap, and the proprietary second transmission resources of different terminal devices do not overlap, completely overlap, or partially overlap.

[0223] For example, Figure 7 shows a schematic diagram of the configuration of transmission resources provided in an exemplary embodiment of this application, wherein the network device is configured with public transmission resources 710, group transmission resources 720 and private transmission resources 730.

[0224] The common transmission resources 710 include two sets of common first transmission resources and common second transmission resources; the group transmission resources 720 include two sets of group first transmission resources and group second transmission resources; and the dedicated transmission resources 730 include eight sets of dedicated first transmission resources and dedicated second transmission resources. For the dedicated transmission resources 730, the network device can configure one or more dedicated first transmission resources and dedicated second transmission resources for each terminal device.

[0225] Suppose that a network device configures a terminal device with one set of common first transmission resources and one set of common second transmission resources, one set of first transmission resources and one set of second transmission resources, and two sets of dedicated first transmission resources and dedicated second transmission resources. Then the terminal device needs to perform detection in these four sets of transmission resources (for example, detecting whether there is a first indication information in the first transmission resource), and then detect DCI and / or downlink data in the corresponding second transmission resource.

[0226] By dividing the first and second transmission resources into different types of transmission resources, and when network devices are configured with at least one of public transmission resources, group transmission resources, and dedicated transmission resources, the scope of terminal device detection is narrowed and detection efficiency is improved.

[0227] 1.11 Characteristics of the Second Frequency Domain Range

[0228] In some embodiments, a third transmission resource is included in the second frequency domain range, and the third transmission resource is used for terminal equipment to detect DCI.

[0229] Optionally, a search space and / or a control resource set (CORESET) may be configured on the third transmission resource.

[0230] CORESET is used to configure the frequency domain resources and time domain resources of the third transport resource. The search space is used to configure the time domain location of the third transport resource, the DCI format to be detected, the aggregation level, and the number of candidate PDCCHs under the aggregation level.

[0231] In some embodiments, if the terminal device switches from the first frequency domain range to the second frequency domain range, or the second frequency domain range is activated, the terminal device detects DCI on the third transmission resource.

[0232] Optionally, the second DCI detection method may also be referred to as at least one of the following: a DCI detection method that detects DCI in the search space configured by the network device; a DCI detection method that detects DCI on a third transmission resource; a DCI detection method that detects DCI in a candidate transmission resource; or a DCI detection method that detects DCI on a CORESET. The embodiments of this application do not limit this, but only use the second DCI detection method as an example for explanation.

[0233] In the second DCI detection method, the network device configures a search space, and the terminal device performs DCI detection within this search space. The search space contains multiple candidate transmission resources that can be used to transmit the PDCCH. The terminal device does not know which candidate transmission resource the network device will use to transmit the PDCCH. Therefore, the terminal device needs to detect all possible candidate transmission resources for PDCCH transmission; hence, it is also called DCI or blind PDCCH detection. In the embodiments of this application, the second DCI detection method is, for example, the DCI detection method in an LTE system or the DCI detection method in an NR system.

[0234] Figure 8 shows a flowchart of a frequency domain range switching method provided in an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0235] Step 810: Switch between the first frequency domain range and the second frequency domain range.

[0236] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, which corresponds to the first DCI detection method mentioned above. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device, which corresponds to the second DCI detection method mentioned above. The second frequency domain range is larger than the first frequency domain range.

[0237] Switching from the first frequency domain range to the second frequency domain range:

[0238] In some embodiments, the frequency range is switched from the first frequency domain range to the second frequency domain range when the first switching condition is met.

[0239] By way of example and not limitation, the first switching condition includes at least one of the following: receiving a first DCI within a first frequency domain; receiving second indication information within a first frequency domain; wherein the data scheduled by the first DCI is located within a second frequency domain, and the second indication information includes index information corresponding to the second frequency domain.

[0240] If the terminal device receives the first DCI in the first frequency domain range, and the uplink or downlink data scheduled by the first DCI is located in the second frequency domain range, then the terminal device switches from the first frequency domain range to the second frequency domain range.

[0241] If the terminal device receives the second indication information within the first frequency domain range, and the second indication information includes the index information corresponding to the second frequency domain range, then the terminal device switches from the first frequency domain range to the second frequency domain range.

[0242] If switching to the second frequency domain range, the terminal device determines, based on the configuration information, whether to detect only DCI within the second frequency domain range, detect DCI within both the first and second frequency domain ranges, or detect DCI within the second frequency domain range and the first indication information within the first frequency domain range. This configuration information is network configuration information or pre-configuration information.

[0243] Different first switching conditions can meet different practical needs. For example, when the network device sends a first DCI indicating that data needs to be transmitted, the terminal device can switch to the second frequency domain range upon receiving the first DCI; or, when the network device sends a second indication information indicating that data needs to be transmitted, and the second indication information includes the index information corresponding to the second frequency domain range, the terminal device can switch to the corresponding second frequency domain range according to the index information corresponding to the second frequency domain range.

[0244] In some embodiments, the first frequency domain range is active before the switching.

[0245] For frequency ranges that are active, network devices may transmit DCI in that frequency range, and terminal devices need to receive DCI in that frequency range. For frequency ranges that are not active (or deactivated), network devices will not transmit DCI in that frequency range, and terminal devices do not need to receive DCI in that frequency range.

[0246] For example, from the perspective of radio frequency bandwidth, when the first frequency domain is active, the radio frequency bandwidth only needs to cover the first frequency domain for the terminal device to receive DCI in the first frequency domain. When the second frequency domain is active, the radio frequency bandwidth needs to cover the second frequency domain. When both the first and second frequency domains are active, the radio frequency bandwidth needs to cover both frequency domains, at which point the terminal device can receive DCI in both frequency domains.

[0247] In some embodiments, after switching from the first frequency domain range to the second frequency domain range, the first frequency domain range is in an active state; or, the first frequency domain range is in a deactivated state.

[0248] After switching to the second frequency domain range, the first frequency domain range remains active, avoiding frequent changes in its state and maintaining system stability. It also allows for quick switching back to the first frequency domain range when needed, saving reactivation time. Furthermore, switching to the second frequency domain range deactivates the first frequency domain range, reducing its associated energy consumption and thus saving power.

[0249] Switching from the second frequency domain range to the first frequency domain range:

[0250] In some embodiments, the frequency range is switched from the second frequency range to the first frequency range when the second switching condition is met.

[0251] In some embodiments, the first frequency domain includes a first transmission resource and a second transmission resource, and the first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The second handover condition includes at least one of the following: a second DCI is detected on the second transmission resource; the first indication information is detected on the first transmission resource; a third indication information sent by a network device is received in the second frequency domain; or the timer times out or becomes invalid.

[0252] Scenario 1: When a second DCI is detected on a second transmission resource, switch from the second frequency domain range to the first frequency domain range.

[0253] When the second frequency domain is activated, the first frequency domain is also activated. The terminal device detects DCI in both the first and second frequency domains simultaneously. The network device sends DCI in the second frequency domain for normal data transmission. When data transmission is not required between the network device and the terminal device, or when the network device needs the terminal device to switch to power-saving mode, the network device sends the second DCI in the first frequency domain to instruct the terminal device to switch to the first frequency domain. When the terminal device detects the second DCI in the first frequency domain, it can switch to the first frequency domain.

[0254] As shown in Figure 9, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0255] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device receives an indication message on the first transmission resource within the first frequency domain of time slot 0, this indication message indicates that the first DCI is transmitted on the second transmission resource. The first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain, at which point the first frequency domain is also activated.

[0256] If the terminal device needs two time slots to activate the second frequency domain range, the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 2 (i.e., starting from time slot 3), and at the same time detect whether the first indication information is transmitted on the first transmission resource in the first frequency domain range. That is, the terminal device will perform detection in the first frequency domain range and the second frequency domain range simultaneously after time slot 2.

[0257] If there is data transmission between network devices and terminal devices, the network devices transmit DCI in the second frequency domain for downlink scheduling or uplink licensing, and the network devices do not transmit DCI in the first frequency domain.

[0258] If there is no data transmission between the network device and the terminal device, or if the network device requires the terminal device to be in power-saving mode, the network device sends a second DCI within the first frequency domain range to instruct the terminal device to switch to the first frequency domain range. As shown in Figure 9, if the terminal device detects the second DCI on the second transmission resource of time slot 7, the terminal device switches to the first frequency domain range. After time slot 7 (i.e., starting from time slot 8), the terminal device only performs detection within the first frequency domain range.

[0259] By detecting the second DCI on the second transmission resource, and switching from the second frequency domain range to the first frequency domain range when the second DCI is detected, the implementation is simple and can quickly switch the frequency domain range.

[0260] Scenario 2: When the first indication information is detected on the first transmission resource, switch from the second frequency domain range to the first frequency domain range.

[0261] In some embodiments, the first indication information is used to indicate at least one of the following: no transmission on the second transmission resource; transmission of the second DCI on the second transmission resource; transmission of the first downlink data on the second transmission resource; and transmission of both the second DCI and the first downlink data on the second transmission resource.

[0262] For specific implementation details, please refer to the instruction method of the first instruction information in 1.9. The second DCI is the DCI in 1.9, which will not be elaborated here.

[0263] When the second frequency domain is activated, the first frequency domain is also activated. The terminal device detects the first indication information on the first transmission resource within the first frequency domain and the DCI on the third transmission resource within the second frequency domain. The network device transmits the DCI within the second frequency domain for normal data transmission. When data transmission is not required between the network device and the terminal device, or when the network device needs the terminal device to switch to power-saving mode, the network device transmits the first indication information on the first transmission resource within the first frequency domain to instruct the terminal device to switch to the first frequency domain. This application embodiment does not limit the content indicated by the first indication information; for example, the first indication information may indicate that there is no transmission on the second transmission resource, that the second DCI is being transmitted, or that the first downlink data is being transmitted.

[0264] As shown in Figure 10, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0265] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device detects an indication message on the first transmission resource in time slot 0, this indication message indicates that the first DCI is being transmitted on the second transmission resource. The first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain, at which point the first frequency domain is also activated.

[0266] If the terminal device needs two time slots to activate the second frequency domain range, the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 2 (i.e., starting from time slot 3), and at the same time detect whether the first indication information is transmitted on the first transmission resource in the first frequency domain range. That is, the terminal device will perform detection in the first frequency domain range and the second frequency domain range simultaneously after time slot 2.

[0267] If there is data transmission between network devices and terminal devices, the network devices can transmit DCI in the second frequency domain for downlink scheduling or uplink authorization. The network devices do not transmit DCI or first indication information in the first frequency domain.

[0268] If there is no data transmission between the network device and the terminal device, or if the network device requires the terminal device to be in power-saving mode, the network device sends a first indication message within the first frequency domain to instruct the terminal device to switch to the first frequency domain. For example, if the terminal device detects the first indication message on the second transmission resource of time slot 5, the terminal device switches to the first frequency domain, and after time slot 5 (i.e., starting from time slot 6), the terminal device only performs detection within the first frequency domain.

[0269] By detecting the first indication information on the first transmission resource, and switching from the second frequency domain range to the first frequency domain range when the first indication information is detected, the implementation is simple, can quickly switch the frequency domain range, and does not require detection of the second transmission resource.

[0270] Scenario 3: When a third indication message is received from a network device in the second frequency domain, switch from the second frequency domain to the first frequency domain.

[0271] In some embodiments, the third indication information is carried by DCI or Radio Resource Control (RRC) signaling sent by the network device.

[0272] In some embodiments, the third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range.

[0273] By using the index information corresponding to the first frequency domain range, the terminal device can accurately switch to the first frequency domain range corresponding to the index information; or, by using the deactivation indication information of the second frequency domain range, the terminal device can perform deactivation on the second frequency domain range, thereby reducing the power consumption of the terminal device.

[0274] When the second frequency domain is activated, the terminal device detects the DCI within that domain. The network device then transmits the DCI within the second frequency domain for normal data transmission. When data transmission between the network device and the terminal device is not required, or when the network device needs the terminal device to switch to power-saving mode, the network device sends a third indication message within the second frequency domain. For example, the third indication message includes index information corresponding to the first frequency domain. The terminal device switches to the first frequency domain based on the third indication message and deactivates the second frequency domain.

[0275] As shown in Figure 11, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI (Distributed Indicator Information). The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0276] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device detects a first indication information on the first transmission resource in time slot 0, indicating that a first DCI is transmitted on the second transmission resource, the first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain and deactivates the first frequency domain.

[0277] If the terminal device needs two time slots to activate the second frequency domain range and two time slots to deactivate the first frequency domain range, then the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 2 (i.e., starting from time slot 3), and will not detect whether the first transmission resource transmits the first indication information in the first frequency domain range.

[0278] If there is data transmission between network devices and terminal devices, the network devices can transmit DCI in the second frequency domain for downlink scheduling or uplink licensing.

[0279] If there is no data transmission between the network device and the terminal device, or if the network device requires the terminal device to be in power-saving mode, the network device sends a third indication message on the third transmission resource. For example, if the terminal device receives the third indication message in the second frequency domain range of time slot 4, the terminal device switches from the second frequency domain range to the first frequency domain range; that is, the terminal device deactivates the second frequency domain range and activates the first frequency domain range. If it takes two time slots for the terminal device to activate the first frequency domain range and two time slots to deactivate the second frequency domain range, then the terminal device will only perform detection in the first frequency domain range after time slot 6 (i.e., starting from time slot 7).

[0280] By receiving the third indication information in the second frequency domain, and switching from the second frequency domain to the first frequency domain upon receiving the third indication information, the first frequency domain does not need to be detected, thus reducing the power consumption of the terminal device.

[0281] Scenario 4: Switch from the second frequency domain range to the first frequency domain range if the timer times out or becomes invalid.

[0282] In some embodiments, after the second frequency domain range is in an active state, the terminal device starts a timer and detects DCI within the second frequency domain range.

[0283] A timer is used to measure the duration of time. Optionally, the timer's duration is determined based on network device configuration information. The timer's duration can be expressed as at least one of the following: the number of time slots, milliseconds, or the number of periods corresponding to the DCI. When the reset condition is not met, the timer counts normally, and the corresponding time duration gradually decreases or increases; when the reset condition is met, the timer restarts. For example, when a DCI is detected, the timer restarts.

[0284] In some embodiments, the timer is reset when the terminal device detects DCI.

[0285] When the second frequency range is activated, the terminal device starts a timer and detects DCI within the second frequency range. The network device transmits DCI within the second frequency range for normal data transmission. When the terminal device detects DCI within the second frequency range, it restarts or resets the timer. When data transmission between the network device and the terminal device is not required, or when the network device needs the terminal device to switch to power-saving mode, the network device stops transmitting DCI within the second frequency range. When the timer times out or expires, the terminal device switches from the second frequency range to the first frequency range.

[0286] As shown in Figure 12, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0287] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device detects a first indication information on the first transmission resource in time slot 0, indicating that a first DCI is transmitted on the second transmission resource, the first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain and deactivates the first frequency domain.

[0288] If the terminal device needs one time slot to activate the second frequency domain range and one time slot to deactivate the first frequency domain range, then the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 1 (i.e., starting from time slot 2), will not detect whether the first transmission resource transmits the first indication information in the first frequency domain range, and will start a timer with the initial value of the timer set to 4 time slots.

[0289] If data transmission occurs between the network device and the terminal device, the network device transmits DCI in the second frequency domain for downlink scheduling or uplink authorization. As shown in Figure 12, the initial value of the timer is set to 4 time slots. If the terminal device detects DCI on the third transmission resource of time slot 2, the timer is reset; if it detects DCI on the third transmission resource of time slot 3, the timer is reset; if it does not detect DCI on the third transmission resource of time slot 4, the timer is decremented by 1. Similarly, if no DCI is detected on the third transmission resources of time slots 5, 6, and 7, the timer is decremented to 0. If the timer decrements to 0, the terminal device switches from the second frequency domain to the first frequency domain, or in other words, the terminal device activates the first frequency domain and deactivates the second frequency domain. If it takes one time slot to activate the first frequency domain and one time slot to deactivate the second frequency domain, then the terminal device will only perform detection in the first frequency domain after time slot 7 (i.e., starting from time slot 8).

[0290] In some embodiments, the second frequency domain range is active before the switch, or the first frequency domain range and the second frequency domain range are active before the switch. For example, in scenarios 3 and 4 above, the second frequency domain range is active before the switch; in scenarios 1 and 2 above, the first frequency domain range and the second frequency domain range are active before the switch.

[0291] By switching from the second frequency domain range to the first frequency domain range when the timer times out or becomes invalid, the switching time can be preset. For example, the switching can be performed in the four time slots after DCI is not detected, without needing to detect the first frequency domain range, thus reducing the power consumption of the terminal device.

[0292] Receive configuration information:

[0293] In some embodiments, the terminal device receives first configuration information and second configuration information, wherein the first configuration information is used to configure a first frequency domain range and the second configuration information is used to configure a second frequency domain range; or, it receives third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range.

[0294] The configuration information used to configure the first frequency domain range and the second frequency domain range can be the same configuration information, such as the third configuration information; or it can be different configuration information, such as the first configuration information and the second configuration information.

[0295] Configuring the first and second frequency domain ranges using configuration information allows for more flexible management and adjustment of terminal devices. Furthermore, configuring the first and second frequency domain ranges with different configuration information can meet personalized configuration needs and adapt to actual requirements; using the same configuration information for both ranges can reduce configuration overhead.

[0296] In some embodiments, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0297] The number of information bits corresponding to DCI corresponds to the maximum number of bits, and the encoded information includes the encoding method, such as Polar code, LDPC code, or small block length encoding.

[0298] In some embodiments, the first configuration information and the second configuration information are carried in the System Information Block (SIB) or RRC signaling; or, the third configuration information is carried in the SIB or RRC signaling.

[0299] By carrying configuration information in SIB or RRC signaling, no additional signaling is required, reducing signaling transmission overhead. Furthermore, it enables rapid configuration after the terminal device connects to the network device, speeding up the network access process. In addition, it allows for configuration of the terminal device during system information updates, enabling more flexible management and adjustment of the terminal device.

[0300] In some embodiments, the network device configures a first transmission resource, a second transmission resource, and a third transmission resource to the terminal device using first configuration information and second configuration information. There may be multiple first, second, and third transmission resources.

[0301] In some embodiments, the network device configures a first transmission resource, a second transmission resource, and a third transmission resource to the terminal device using third configuration information. There may be multiple first, second, and third transmission resources.

[0302] In summary, the method provided in this embodiment switches between a first frequency domain range and a second frequency domain range. The DCI detection method corresponding to the first frequency domain range determines whether DCI detection is needed based on first indication information, while the DCI detection method corresponding to the second frequency domain range detects DCI within the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. By using different DCI detection methods corresponding to different frequency domain ranges, switching between a smaller and a larger frequency domain range is achieved. When switching to a smaller frequency domain range, less power is used compared to a larger frequency domain range, achieving energy saving and consumption reduction. When switching to a larger frequency domain range, the first indication information is not required, resulting in lower data transmission latency and improved data transmission speed.

[0303] Figure 13 illustrates a flowchart of a frequency domain range management method provided in an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0304] Step 1310: Perform activation or deactivation for at least one of the first frequency domain range and the second frequency domain range.

[0305] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, which corresponds to the first DCI detection method mentioned above. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device, which corresponds to the second DCI detection method mentioned above. The second frequency domain range is larger than the first frequency domain range.

[0306] Activate the second frequency domain range:

[0307] In some embodiments, the second frequency domain range is activated when the first activation condition is met.

[0308] By way of example and not limitation, the first activation condition includes at least one of the following: receiving a first DCI within a first frequency domain; receiving second indication information within a first frequency domain; wherein the data scheduled by the first DCI is located within a second frequency domain, and the second indication information includes index information corresponding to the second frequency domain.

[0309] If the terminal device receives the first DCI within the first frequency domain range, and the uplink or downlink data scheduled by the first DCI is located within the second frequency domain range, then the terminal device activates the second frequency domain range.

[0310] If the terminal device receives the second indication information within the first frequency domain range, and the second indication information includes the index information corresponding to the second frequency domain range, then the terminal device activates the second frequency domain range.

[0311] If the second frequency domain range is activated, the terminal device determines, based on the configuration information, whether to detect only the DCI within the second frequency domain range, detect the DCI within both the first and second frequency domain ranges, or detect the DCI within the second frequency domain range and the first indication information within the first frequency domain range. This configuration information is network configuration information or pre-configuration information.

[0312] Different first activation conditions can meet different practical needs. For example, when the network device sends a first DCI indicating that data needs to be transmitted, the terminal device can activate the second frequency domain range upon receiving the first DCI; or, when the network device sends a second indication information indicating that data needs to be transmitted, and the second indication information includes the index information corresponding to the second frequency domain range, the terminal device can activate the second frequency domain range according to the index information corresponding to the second frequency domain range.

[0313] In some embodiments, after the second frequency domain range is activated, the first frequency domain range is activated; or, the first frequency domain range is deactivated.

[0314] After activating the second frequency domain range, the first frequency domain range remains active, preventing frequent changes in its state and maintaining system stability. It also allows for quick switching back to the first frequency domain range when needed, saving reactivation time. Conversely, activating the second frequency domain range deactivates the first frequency domain range, reducing its associated energy consumption and thus saving power.

[0315] Deactivate the second frequency domain range:

[0316] In some embodiments, the second frequency domain range is deactivated if a first deactivation condition is met.

[0317] By way of example and not limitation, the first frequency domain includes a first transmission resource and a second transmission resource, and the first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit the DCI. The first deactivation condition includes at least one of the following: the second DCI is detected on the second transmission resource; the first indication information is detected on the first transmission resource; the third indication information sent by the network device is received in the second frequency domain; or the timer times out or becomes invalid.

[0318] Scenario 1: If a second DCI is detected on the second transmission resource, the second frequency domain range is deactivated.

[0319] When the second frequency domain is activated, the first frequency domain is also activated. The terminal device detects DCI in both the first and second frequency domains simultaneously. The network device sends DCI in the second frequency domain for normal data transmission. When data transmission is not required between the network device and the terminal device, or when the network device needs the terminal device to switch to power-saving mode, the network device can send DCI in the first frequency domain to instruct the terminal device to activate the second frequency domain. Once the terminal device detects DCI in the first frequency domain, it can deactivate the second frequency domain.

[0320] As shown in Figure 9, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0321] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device receives an indication message on the first transmission resource within the first frequency domain of time slot 0, this indication message indicates that the first DCI is transmitted on the second transmission resource. The first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain, at which point the first frequency domain is also activated.

[0322] If the terminal device needs two time slots to activate the second frequency domain range, the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 2 (i.e., starting from time slot 3), and at the same time detect whether the first indication information is transmitted on the first transmission resource in the first frequency domain range. That is, the terminal device will perform detection in the first frequency domain range and the second frequency domain range simultaneously after time slot 2.

[0323] If there is data transmission between network devices and terminal devices, the network devices can transmit DCI in the second frequency domain for downlink scheduling or uplink licensing. The network devices do not transmit DCI in the first frequency domain.

[0324] If there is no data transmission between the network device and the terminal device, or if the network device requires the terminal device to be in power-saving mode, the network device sends a second DCI within the first frequency domain range to deactivate the second frequency domain range. As shown in Figure 9, if the terminal device detects the second DCI on the second transmission resource in time slot 7, the terminal device deactivates the second frequency domain range, and after time slot 7 (i.e., starting from time slot 8), the terminal device only performs detection within the first frequency domain range.

[0325] By detecting the second DCI on the second transmission resource, and deactivating the second frequency domain range when the second DCI is detected, the implementation is simple and can quickly deactivate the second frequency domain range.

[0326] Scenario 2: If the first indication information is detected on the first transmission resource, the second frequency domain range is deactivated.

[0327] In some embodiments, the first indication information is used to indicate at least one of the following: no transmission on the second transmission resource; transmission of the second DCI on the second transmission resource; transmission of the first downlink data on the second transmission resource; and transmission of both the second DCI and the first downlink data on the second transmission resource.

[0328] For specific implementation details, please refer to the instruction method of the first instruction information in 1.9. The second DCI is the DCI in 1.9, which will not be elaborated here.

[0329] When the second frequency domain is activated, the first frequency domain is also activated. The terminal device detects the first indication information on the first transmission resource within the first frequency domain and the DCI on the third transmission resource within the second frequency domain. The network device transmits the DCI within the second frequency domain for normal data transmission. When data transmission is not required between the network device and the terminal device, or when the network device needs the terminal device to switch to power-saving mode, the network device can transmit the first indication information on the first transmission resource within the first frequency domain to instruct the terminal device to deactivate the second frequency domain. This application embodiment does not limit the content indicated by the first indication information; for example, the first indication information can indicate no transmission, transmission of DCI, or transmission of downlink data on the second transmission resource.

[0330] As shown in Figure 10, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0331] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device detects an indication message on the first transmission resource in time slot 0, this indication message indicates that the first DCI is being transmitted on the second transmission resource. The first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain, at which point the first frequency domain is also activated.

[0332] If the terminal device needs two time slots to activate the second frequency domain range, the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 2 (i.e., starting from time slot 3), and at the same time detect whether the first indication information is transmitted on the first transmission resource in the first frequency domain range. That is, the terminal device will perform detection in the first frequency domain range and the second frequency domain range simultaneously after time slot 2.

[0333] If there is data transmission between network devices and terminal devices, the network devices can transmit DCI in the second frequency domain for downlink scheduling or uplink authorization. The network devices do not transmit DCI or first indication information in the first frequency domain.

[0334] If there is no data transmission between the network device and the terminal device, or if the network device requires the terminal device to be in power-saving mode, the network device sends a first indication message within the first frequency domain to indicate the deactivation of the second frequency domain. For example, if the terminal device detects the first indication message on the second transmission resource in time slot 5, the terminal device deactivates the second frequency domain, and after time slot 5 (i.e., starting from time slot 6), the terminal device only performs detection within the first frequency domain.

[0335] By detecting the first indication information on the first transmission resource, and then deactivating the second frequency domain range upon detection of the first indication information, the implementation is simple, the second frequency domain range can be activated quickly, and there is no need to detect the second transmission resource.

[0336] Scenario 3: If a third instruction message is received from a network device within the second frequency domain range, the second frequency domain range is deactivated.

[0337] In some embodiments, the third indication information is carried by DCI or RRC signaling transmitted by the network device.

[0338] In some embodiments, the third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range.

[0339] By using the index information corresponding to the first frequency domain range, the terminal device can accurately activate the first frequency domain range corresponding to the index information; or, by using the deactivation indication information of the second frequency domain range, the terminal device can perform deactivation on the second frequency domain range, thereby reducing the power consumption of the terminal device.

[0340] Once the second frequency domain range is activated, the terminal device detects the DCI within that range. The network device then transmits the DCI within the second frequency domain range for normal data transmission. When data transmission between the network device and the terminal device is not required, or when the network device needs the terminal device to switch to power-saving mode, the network device transmits third indication information within the second frequency domain range. For example, the third indication information includes index information corresponding to the first frequency domain range. The terminal device activates the first frequency domain range and deactivates the second frequency domain range based on the third indication information.

[0341] As shown in Figure 11, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI (Distributed Indicator Information). The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0342] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device detects a first indication information on the first transmission resource in time slot 0, indicating that a first DCI is transmitted on the second transmission resource, the first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain and deactivates the first frequency domain.

[0343] If the terminal device needs two time slots to activate the second frequency domain range and two time slots to deactivate the first frequency domain range, then the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 2 (i.e., starting from time slot 3), and will not detect whether the first transmission resource transmits the first indication information in the first frequency domain range.

[0344] If there is data transmission between network devices and terminal devices, the network devices can transmit DCI in the second frequency domain for downlink scheduling or uplink licensing.

[0345] If there is no data transmission between the network device and the terminal device, or if the network device requires the terminal device to be in power-saving mode, the network device sends a third indication message on the third transmission resource. For example, if the terminal device receives the third indication message in the second frequency domain range of time slot 4, the terminal device activates the first frequency domain range and deactivates the second frequency domain range. If it takes two time slots for the terminal device to activate the first frequency domain range and two time slots to deactivate the second frequency domain range, then the terminal device will only perform detection in the first frequency domain range after time slot 6 (i.e., starting from time slot 7).

[0346] By receiving the third indication information in the second frequency domain, the second frequency domain is deactivated upon receiving the third indication information, eliminating the need to detect the first frequency domain and reducing the power consumption of the terminal device.

[0347] Scenario 4: Deactivate the second frequency domain range if the timer times out or becomes invalid.

[0348] In some embodiments, after the second frequency domain range is in an active state, the terminal device starts a timer and detects DCI within the second frequency domain range.

[0349] A timer is used to measure the duration of time. Optionally, the timer's duration is determined based on network device configuration information. The timer's duration can be expressed as at least one of the following: the number of time slots, milliseconds, or the number of periods corresponding to the DCI. When the reset condition is not met, the timer counts normally, and the corresponding time duration gradually decreases or increases; when the reset condition is met, the timer restarts. For example, when a DCI is detected, the timer restarts.

[0350] In some embodiments, the timer is reset when the terminal device detects DCI.

[0351] When the second frequency range is activated, the terminal device starts a timer and detects DCI within the second frequency range. The network device transmits DCI within the second frequency range for normal data transmission. When the terminal device detects DCI within the second frequency range, it restarts or resets the timer. When data transmission is not required between the network device and the terminal device, or when the network device requires the terminal device to switch to power-saving mode, the network device stops transmitting DCI within the second frequency range. When the timer expires, the terminal device deactivates the second frequency range; optionally, the terminal device switches to the first frequency range or activates the first frequency range.

[0352] As shown in Figure 12, the following explanation uses the second frequency domain range encompassing the first frequency domain range as an example. Within the first frequency domain range, periodic first and second transmission resources are configured, and these resources are associated, with a period of one time slot. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The terminal device detects the first indication information on the first transmission resource and determines whether DCI detection is needed on the corresponding second transmission resource based on the first indication information. A third transmission resource is configured within the second frequency domain range, and a search space is configured on the third transmission resource, with a period of two time slots.

[0353] Assume that the terminal device is in power-saving mode before the second frequency domain is activated, meaning the terminal device operates within the first frequency domain. If the terminal device detects a first indication information on the first transmission resource in time slot 0, indicating that a first DCI is transmitted on the second transmission resource, the first DCI indicates that the scheduled data is located within the second frequency domain. When the terminal device detects the first DCI, it activates the second frequency domain and deactivates the first frequency domain.

[0354] If the terminal device needs one time slot to activate the second frequency domain range and one time slot to deactivate the first frequency domain range, then the terminal device will perform DCI detection in the search space of the second frequency domain range after time slot 1 (i.e., starting from time slot 2), will not detect whether the first transmission resource transmits the first indication information in the first frequency domain range, and will start a timer with the initial value of the timer set to 4 time slots.

[0355] If data transmission occurs between the network device and the terminal device, the network device transmits DCI in the second frequency domain for downlink scheduling or uplink authorization. As shown in Figure 12, the initial value of the timer is set to 4 time slots. If the terminal device detects DCI on the third transmission resource of time slot 2, the timer is reset; if it detects DCI on the third transmission resource of time slot 3, the timer is reset; if it does not detect DCI on the third transmission resource of time slot 4, the timer is decremented by 1. Similarly, if no DCI is detected on the third transmission resources of time slots 5, 6, and 7, the timer is decremented to 0. If the timer decrements to 0, the terminal device activates the first frequency domain and deactivates the second frequency domain. If activating the first frequency domain requires 1 time slot and deactivating the second frequency domain requires 1 time slot, the terminal device will only perform detection in the first frequency domain after time slot 7 (i.e., starting from time slot 8).

[0356] By deactivating the second frequency domain range when the timer times out or becomes invalid, the deactivation time can be preset. For example, deactivation can be performed in the four time slots after DCI is not detected, without needing to detect the first frequency domain range, thus reducing the power consumption of the terminal device.

[0357] Receive configuration information:

[0358] In some embodiments, the terminal device receives first configuration information and second configuration information, wherein the first configuration information is used to configure a first frequency domain range and the second configuration information is used to configure a second frequency domain range; or, it receives third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range.

[0359] In some embodiments, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0360] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0361] In summary, the method provided in this embodiment activates or deactivates at least one of a first frequency domain range and a second frequency domain range. The DCI detection method corresponding to the first frequency domain range determines whether DCI detection is needed based on a first indication information, while the DCI detection method corresponding to the second frequency domain range detects DCI within the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. By using different DCI detection methods corresponding to different frequency domain ranges, activation or deactivation is performed on at least one of the smaller or larger frequency domain ranges after DCI is detected. When the smaller frequency domain range is activated, less power is used compared to the larger frequency domain range, achieving energy saving and consumption reduction. When the larger frequency domain range is activated, the first indication information is not required, resulting in lower data transmission latency and improved data transmission speed.

[0362] Figure 14 shows a flowchart of an information receiving method provided in an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0363] Step 1410: Receive configuration information.

[0364] The configuration information is used to configure at least one of the first frequency domain range and the second frequency domain range; the DCI detection method corresponding to the first frequency domain range is to determine whether DCI needs to be detected based on the first indication information, that is, it corresponds to the first DCI detection method described above; the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device, that is, it corresponds to the second DCI detection method described above, and the second frequency domain range is larger than the first frequency domain range.

[0365] In some embodiments, receiving configuration information includes: receiving first configuration information and second configuration information, wherein the first configuration information is used to configure a first frequency domain range and the second configuration information is used to configure a second frequency domain range; or, receiving third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range.

[0366] In some embodiments, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0367] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0368] In some embodiments, the method further includes switching between a first frequency domain range and a second frequency domain range.

[0369] For specific implementation details, please refer to the embodiment in Figure 8, which will not be repeated here.

[0370] In some embodiments, the method further includes: performing activation or deactivation on at least one of a first frequency domain range and a second frequency domain range.

[0371] For specific implementation details, please refer to the embodiment shown in Figure 13, which will not be repeated here.

[0372] In summary, the method provided in this embodiment receives configuration information; wherein the configuration information is used to configure at least one of a first frequency domain range and a second frequency domain range; the DCI detection method corresponding to the first frequency domain range is based on a first indication information to determine whether DCI detection is needed, and the DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device, and the second frequency domain range is larger than the first frequency domain range. Configuring the first and second frequency domain ranges using configuration information allows for more flexible management and adjustment of the terminal device. Furthermore, configuring the first and second frequency domain ranges using different configuration information can meet personalized configuration needs and adapt to actual requirements; configuring the first and second frequency domain ranges using the same configuration information can reduce the overhead of configuration information.

[0373] Figure 15 illustrates a flowchart of an information transmission method provided in an exemplary embodiment of this application. The method is performed by a network device and includes:

[0374] Step 1510: Send configuration information.

[0375] The DCI detection method corresponding to the first frequency domain range is that the terminal device determines whether DCI needs to be detected based on the first indication information, which corresponds to the first DCI detection method mentioned above. The DCI detection method corresponding to the second frequency domain range is that the terminal device detects DCI in the search space configured by the network device, which corresponds to the second DCI detection method mentioned above. The second frequency domain range is larger than the first frequency domain range.

[0376] In some embodiments, the second frequency domain range includes the first frequency domain range, that is, the first frequency domain range is located within the second frequency domain range.

[0377] In some embodiments, the second frequency domain range does not include the first frequency domain range, that is, the first frequency domain range and the second frequency domain range do not overlap or partially overlap.

[0378] In some embodiments, sending configuration information includes: sending first configuration information and second configuration information, wherein the first configuration information is used to configure a first frequency domain range and the second configuration information is used to configure a second frequency domain range; or, sending third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range.

[0379] In some embodiments, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0380] Configuring the first and second frequency domain ranges using configuration information allows for more flexible management and adjustment of terminal devices. Furthermore, configuring the first and second frequency domain ranges with different configuration information can meet personalized configuration needs and adapt to actual requirements; using the same configuration information for both ranges can reduce configuration overhead.

[0381] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0382] In some embodiments, the method further includes: transmitting a first DCI within a first frequency domain range;

[0383] The data scheduled by the first DCI is located in the second frequency domain range. The first DCI is used to instruct the terminal device to switch from the first frequency domain range to the second frequency domain range, or to instruct the activation of the second frequency domain range.

[0384] In some embodiments, the method further includes: sending second indication information within a first frequency domain range; wherein the second indication information includes index information corresponding to the second frequency domain range, and the second indication information is used to instruct the terminal device to switch from the first frequency domain range to the second frequency domain range, or to instruct the activation of the second frequency domain range.

[0385] In some embodiments, the first frequency domain range is active before the switching.

[0386] In some embodiments, after the terminal device switches from the first frequency domain range to the second frequency domain range, the first frequency domain range is in an active state; or, after the second frequency domain range is in an active state, the first frequency domain range is in an active state.

[0387] For specific implementation details, please refer to the embodiment in Figure 8, which will not be repeated here.

[0388] In some embodiments, the first frequency domain includes a first transmission resource and a second transmission resource, the first transmission resource and the second transmission resource have a corresponding relationship, the first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The method further includes:

[0389] A second DCI is transmitted on a second transmission resource; wherein the second DCI is used to instruct the terminal device to switch from a second frequency domain range to a first frequency domain range, or to instruct the deactivation of the second frequency domain range.

[0390] For specific implementation details, please refer to the embodiment in Figure 8, which will not be repeated here.

[0391] In some embodiments, the first frequency domain includes a first transmission resource and a second transmission resource, the first transmission resource and the second transmission resource have a corresponding relationship, the first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The method further includes:

[0392] Send first indication information on the first transmission resource; wherein the first indication information is used to instruct the terminal device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range.

[0393] In some embodiments, the first indication information is used to indicate at least one of the following: no transmission on the second transmission resource; transmission of the second DCI on the second transmission resource; transmission of the first downlink data on the second transmission resource; and transmission of both the second DCI and the first downlink data on the second transmission resource.

[0394] For specific implementation details, please refer to the embodiment in Figure 8 and the indication method of the first indication information in 1.9, which will not be repeated here.

[0395] In some embodiments, the first frequency domain includes a first transmission resource and a second transmission resource, the first transmission resource and the second transmission resource have a corresponding relationship, the first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The method further includes:

[0396] A third indication message is sent within the second frequency domain range; wherein the third indication message is used to instruct the terminal device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range.

[0397] In some embodiments, a third indication information is transmitted via DCI or RRC signaling within the second frequency domain.

[0398] In some embodiments, the third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range.

[0399] In some embodiments, a third transmission resource is included in the second frequency domain range, which is used for the terminal device to detect DCI and / or third indication information.

[0400] In some embodiments, a search space and / or CORESET are configured on the third transport resource.

[0401] For specific implementation details, please refer to the embodiment in Figure 8 and the characteristics of the second frequency domain range in 1.11, which will not be repeated here.

[0402] In summary, the method provided in this embodiment sends configuration information. The DCI detection method corresponding to the first frequency domain range involves the terminal device determining whether DCI detection is needed based on first indication information. The DCI detection method corresponding to the second frequency domain range involves the terminal device detecting DCI within the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. Configuring the first and second frequency domain ranges using configuration information allows for more flexible management and adjustment of the terminal device. Furthermore, configuring the first and second frequency domain ranges with different configuration information can meet personalized configuration needs and adapt to actual requirements; configuring the first and second frequency domain ranges with the same configuration information can reduce configuration information overhead.

[0403] In the above embodiments, the embodiments corresponding to FIG8, FIG13, FIG14 and FIG15 can be implemented individually or in combination, and this application does not limit them.

[0404] Figure 16 shows a block diagram of a frequency domain range switching device provided in an exemplary embodiment of this application. This device can be implemented as a terminal device, or as part of a terminal device, through software, hardware, or a combination of both. The device includes:

[0405] The switching module 1610 is used to switch between a first frequency domain range and a second frequency domain range;

[0406] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, which corresponds to the first DCI detection method described above. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device, which corresponds to the second DCI detection method described above. The second frequency domain range is larger than the first frequency domain range.

[0407] In one possible design of this embodiment, the first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI.

[0408] In one possible design of this embodiment, the second frequency domain range includes the first frequency domain range, that is, the first frequency domain range is located within the second frequency domain range.

[0409] In one possible design of this embodiment, the second frequency domain range includes a third transmission resource, which is used for the frequency domain range switching device to detect DCI and / or third indication information.

[0410] Optionally, a search space is configured on the third transmission resource, and / or, CORESET, the frequency domain range switching device detects DCI in the configured search space.

[0411] CORESET is used to configure the frequency domain resources and time domain resources of the third transport resource. The search space is used to configure the time domain location of the third transport resource, the DCI format to be detected, the aggregation level, and the number of candidate PDCCHs under the aggregation level.

[0412] Switching from the first frequency domain range to the second frequency domain range:

[0413] In one possible design of this embodiment, the switching module 1610 is used to switch from the first frequency domain range to the second frequency domain range when the first switching condition is met.

[0414] By way of example and not limitation, the first switching condition includes at least one of the following: receiving a first DCI within a first frequency domain; receiving second indication information within a first frequency domain; wherein the data scheduled by the first DCI is located within a second frequency domain, and the second indication information includes index information corresponding to the second frequency domain.

[0415] In one possible design of this embodiment, the first frequency domain range is in an active state before switching.

[0416] In one possible design of this embodiment, after switching from the first frequency domain range to the second frequency domain range, the first frequency domain range is in an active state; or, the first frequency domain range is in a deactivated state.

[0417] For specific implementation details, please refer to the embodiment in Figure 8 for switching from the first frequency domain range to the second frequency domain range, which will not be repeated here.

[0418] Switching from the second frequency domain range to the first frequency domain range:

[0419] In one possible design of this embodiment, the switching module 1610 is used to switch from the second frequency domain range to the first frequency domain range when the second switching condition is met.

[0420] In one possible design of this embodiment, the first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The second switching condition includes at least one of the following: a second DCI is detected on the second transmission resource; the first indication information is detected on the first transmission resource; a third indication information sent by the information transmitting device is received in the second frequency domain; or the timer times out or becomes invalid.

[0421] Scenario 1: When a second DCI is detected on a second transmission resource, switch from the second frequency domain range to the first frequency domain range.

[0422] For specific implementation details, please refer to Scenario 1 of the embodiment shown in Figure 8, which will not be repeated here.

[0423] Scenario 2: When the first indication information is detected on the first transmission resource, switch from the second frequency domain range to the first frequency domain range.

[0424] In one possible design of this embodiment, the first indication information is used to indicate at least one of the following: no transmission on the second transmission resource; transmission of the second DCI on the second transmission resource; transmission of the first downlink data on the second transmission resource; transmission of both the second DCI and the first downlink data on the second transmission resource.

[0425] For specific implementation details, please refer to Scenario 2 of the embodiment in Figure 8, which will not be repeated here.

[0426] Scenario 3: When a third instruction message is received from an information transmitting device in the second frequency domain, the system switches from the second frequency domain to the first frequency domain.

[0427] In one possible design of this embodiment, the third indication information is carried by DCI or RRC signaling transmitted by the information sending device.

[0428] In one possible design of this embodiment, the third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range.

[0429] For specific implementation details, please refer to scenario 3 of the embodiment in Figure 8, which will not be repeated here.

[0430] Scenario 4: Switch from the second frequency domain range to the first frequency domain range if the timer times out or becomes invalid.

[0431] In one possible design of this embodiment, the timing module 1630 is used to start a timer after being in an active state in the second frequency domain range, and to detect DCI in the second frequency domain range.

[0432] A timer is used to measure the duration of time. Optionally, the timer's duration is determined based on the information transmitting device configuration information. The timer's duration can be expressed as at least one of the following: the number of time slots, the number of milliseconds, or the number of cycles corresponding to the DCI. When the reset condition is not met, the timer counts normally, and the corresponding time duration gradually decreases or increases; when the reset condition is met, the timer restarts counting. For example, when a DCI is detected, the timer restarts counting.

[0433] In one possible design of this embodiment, the timer is reset when the frequency domain range switching device detects DCI.

[0434] For specific implementation details, please refer to scenario 4 of the embodiment in Figure 8, which will not be repeated here.

[0435] Receive configuration information:

[0436] In one possible design of this embodiment, the receiving module 1620 is used to receive first configuration information and second configuration information, wherein the first configuration information is used to configure a first frequency domain range and the second configuration information is used to configure a second frequency domain range; or, to receive third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range.

[0437] In one possible design of this embodiment, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0438] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0439] This embodiment uses a switching module 1610, a receiving module 1620 and a timing module 1630 as examples for illustration. The number of switching modules 1610, receiving modules 1620 and timing modules 1630 is not limited.

[0440] For a description of the function of the switching module 1610, please refer to step 810 in the embodiment shown in Figure 8. For a description of the function of the receiving module 1620, please refer to step 810 in the embodiment shown in Figure 8. For a description of the function of the timing module 1630, please refer to step 810 in the embodiment shown in Figure 8.

[0441] Figure 17 shows a block diagram of a frequency domain range management device provided in an exemplary embodiment of this application. This device can be implemented as a terminal device, or as part of a terminal device, through software, hardware, or a combination of both. The device includes:

[0442] Execution module 1710 is used to perform activation or deactivation on at least one of the first frequency domain range and the second frequency domain range;

[0443] The DCI detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected, which corresponds to the first DCI detection method described above. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device, which corresponds to the second DCI detection method described above. The second frequency domain range is larger than the first frequency domain range.

[0444] In one possible design of this embodiment, the first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI.

[0445] In one possible design of this embodiment, the second frequency domain range includes the first frequency domain range, that is, the first frequency domain range is located within the second frequency domain range.

[0446] In one possible design of this embodiment, the second frequency domain range includes a third transmission resource, which is used for the frequency domain range management device to detect DCI and / or third indication information.

[0447] Activate the second frequency domain range:

[0448] In one possible design of this embodiment, the execution module 1710 is used to activate the second frequency domain range when the first activation condition is met.

[0449] By way of example and not limitation, the first activation condition includes at least one of the following: receiving a first DCI within a first frequency domain; receiving second indication information within a first frequency domain; wherein the data scheduled by the first DCI is located within a second frequency domain, and the second indication information includes index information corresponding to the second frequency domain.

[0450] In one possible design of this embodiment, the first frequency domain is activated after the second frequency domain is activated; or, the first frequency domain is deactivated.

[0451] For specific implementation details, please refer to the activation range of the second frequency domain in the embodiment shown in Figure 13, which will not be repeated here.

[0452] Deactivate the second frequency domain range:

[0453] In one possible design of this embodiment, the execution module 1710 is used to deactivate the second frequency domain range when the first deactivation condition is met.

[0454] By way of example and not limitation, the first frequency domain includes a first transmission resource and a second transmission resource, and the first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit the DCI. The first deactivation condition includes at least one of the following: the second DCI is detected on the second transmission resource; the first indication information is detected on the first transmission resource; the third indication information sent by the information transmitting device is received in the second frequency domain; or the timer times out or becomes invalid.

[0455] Scenario 1: If a second DCI is detected on the second transmission resource, the second frequency domain range is deactivated.

[0456] For specific implementation details, please refer to Scenario 1 of the embodiment shown in Figure 13, which will not be repeated here.

[0457] Scenario 2: If the first indication information is detected on the first transmission resource, the second frequency domain range is deactivated.

[0458] In one possible design of this embodiment, the first indication information is used to indicate at least one of the following: no transmission on the second transmission resource; transmission of the second DCI on the second transmission resource; transmission of the first downlink data on the second transmission resource; transmission of both the second DCI and the first downlink data on the second transmission resource.

[0459] For specific implementation details, please refer to Scenario 2 of the embodiment shown in Figure 13, which will not be repeated here.

[0460] Scenario 3: If a third instruction message is received from an information transmitting device within the second frequency domain range, the second frequency domain range is deactivated.

[0461] In one possible design of this embodiment, the third indication information is carried by DCI or RRC signaling transmitted by the information sending device.

[0462] In one possible design of this embodiment, the third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range.

[0463] For specific implementation details, please refer to scenario 3 of the embodiment shown in Figure 13, which will not be repeated here.

[0464] Scenario 4: Deactivate the second frequency domain range if the timer times out or becomes invalid.

[0465] In one possible design of this embodiment, after the second frequency range is in an active state, the frequency range management device starts a timer and detects DCI within the second frequency range.

[0466] A timer is used to measure the duration of time. Optionally, the timer's duration is determined based on the information transmitting device configuration information. The timer's duration can be expressed as at least one of the following: the number of time slots, the number of milliseconds, or the number of cycles corresponding to the DCI. When the reset condition is not met, the timer counts normally, and the corresponding time duration gradually decreases or increases; when the reset condition is met, the timer restarts counting. For example, when a DCI is detected, the timer restarts counting.

[0467] In one possible design of this embodiment, the timer is reset when the management device in the frequency domain detects DCI.

[0468] For specific implementation details, please refer to scenario 4 of the embodiment shown in Figure 13, which will not be repeated here.

[0469] Receive configuration information:

[0470] In one possible design of this embodiment, the frequency domain range management device receives first configuration information and second configuration information, the first configuration information being used to configure a first frequency domain range and the second configuration information being used to configure a second frequency domain range; or, it receives third configuration information, the third configuration information being used to configure the first frequency domain range and the second frequency domain range.

[0471] In one possible design of this embodiment, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0472] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0473] This embodiment uses one execution module 1710, one receiving module 1720 and one timing module 1730 as an example for illustration. The number of execution module 1710, receiving module 1720 and timing module 1730 is not limited.

[0474] For a description of the function of the switching module 1710, please refer to step 1310 in the embodiment shown in Figure 13. For a description of the function of the receiving module 1720, please refer to step 1310 in the embodiment shown in Figure 13. For a description of the function of the timing module 1730, please refer to step 1310 in the embodiment shown in Figure 13.

[0475] Figure 18 shows a block diagram of an information receiving device provided in an exemplary embodiment of this application. This device can be implemented as a terminal device, or as part of a terminal device, through software, hardware, or a combination of both. The device includes:

[0476] The receiving module 1810 is used to receive configuration information, which is used to configure at least one of a first frequency domain range and a second frequency domain range.

[0477] The DCI detection method corresponding to the first frequency domain range is to determine whether DCI needs to be detected based on the first indication information, which corresponds to the first DCI detection method mentioned above. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device, which corresponds to the second DCI detection method mentioned above. The second frequency domain range is larger than the first frequency domain range.

[0478] In one possible design of this embodiment, the receiving module 1810 is used to receive first configuration information and second configuration information, the first configuration information being used to configure a first frequency domain range and the second configuration information being used to configure a second frequency domain range; or, to receive third configuration information, the third configuration information being used to configure the first frequency domain range and the second frequency domain range.

[0479] In one possible design of this embodiment, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0480] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0481] In one possible design of this embodiment, the switching module 1820 is used to switch between a first frequency domain range and a second frequency domain range.

[0482] For specific implementation details, please refer to the embodiment in Figure 8, which will not be repeated here.

[0483] In one possible design of this embodiment, the execution module 1830 is used to perform activation or deactivation on at least one of the first frequency domain range and the second frequency domain range.

[0484] For specific implementation details, please refer to the embodiment shown in Figure 13, which will not be repeated here.

[0485] This embodiment uses a receiving module 1810, a switching module 1820 and an execution module 1830 as an example for illustration. The number of receiving modules 1810, switching modules 1820 and execution modules 1830 is not limited.

[0486] For a description of the function of the receiving module 1810, please refer to step 1410 in the embodiment shown in Figure 14. For a description of the function of the switching module 1820, please refer to step 1410 in the embodiment shown in Figure 14. For a description of the function of the execution module 1830, please refer to step 1410 in the embodiment shown in Figure 14.

[0487] Figure 19 shows a block diagram of an information transmission apparatus provided in an exemplary embodiment of this application. The apparatus can be implemented as a network device, or as part of a network device, through software or hardware, or a combination of both. The apparatus includes:

[0488] The transmitting module 1910 is used to transmit configuration information, which is used to configure at least one of a first frequency domain range and a second frequency domain range.

[0489] The DCI detection method corresponding to the first frequency domain range is that the information receiving device determines whether DCI needs to be detected based on the first indication information, which corresponds to the first DCI detection method mentioned above. The DCI detection method corresponding to the second frequency domain range is that the information receiving device detects DCI in the search space configured by the information transmitting device, which corresponds to the second DCI detection method mentioned above. The second frequency domain range is larger than the first frequency domain range.

[0490] In one possible design of this embodiment, the second frequency domain range includes the first frequency domain range, that is, the first frequency domain range is located within the second frequency domain range.

[0491] In one possible design of this embodiment, the second frequency domain range does not include the first frequency domain range, that is, the first frequency domain range and the second frequency domain range do not overlap or partially overlap.

[0492] In one possible design of this embodiment, the sending module 1910 is used to send first configuration information and second configuration information, the first configuration information being used to configure a first frequency domain range and the second configuration information being used to configure a second frequency domain range; or, to send third configuration information, the third configuration information being used to configure the first frequency domain range and the second frequency domain range.

[0493] In one possible design of this embodiment, the first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; RNTI information; encoding information; and bit rate indication information.

[0494] For specific implementation details, please refer to the receiving configuration information in the embodiment shown in Figure 8, which will not be repeated here.

[0495] In one possible design of this embodiment, the transmitting module 1910 is used to transmit the first DCI within the first frequency domain range;

[0496] The data scheduled by the first DCI is located in the second frequency domain range. The first DCI is used to instruct the information receiving device to switch from the first frequency domain range to the second frequency domain range, or to instruct the activation of the second frequency domain range.

[0497] In one possible design of this embodiment, the transmitting module 1910 is used to transmit second indication information within a first frequency domain range;

[0498] The second indication information includes index information corresponding to the second frequency domain range. The second indication information is used to instruct the information receiving device to switch from the first frequency domain range to the second frequency domain range, or to instruct the activation of the second frequency domain range.

[0499] In one possible design of this embodiment, the first frequency domain range is in an active state before switching.

[0500] In one possible design of this embodiment, after the information receiving device switches from the first frequency domain range to the second frequency domain range, the first frequency domain range is in an active state; or, after the second frequency domain range is in an active state, the first frequency domain range is in an active state.

[0501] For specific implementation details, please refer to the embodiment in Figure 8, which will not be repeated here.

[0502] In one possible design of this embodiment, the first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The transmitting module 1910 is used to transmit the second DCI on the second transmission resource.

[0503] The second DCI is used to instruct the information receiving device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range.

[0504] For specific implementation details, please refer to the embodiment in Figure 8, which will not be repeated here.

[0505] In one possible design of this embodiment, the first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The transmitting module 1910 is used to transmit the first indication information on the first transmission resource.

[0506] The first indication information is used to instruct the information receiving device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range.

[0507] In one possible design of this embodiment, the first indication information is used to indicate at least one of the following: no transmission on the second transmission resource; transmission of the second DCI on the second transmission resource; transmission of the first downlink data on the second transmission resource; transmission of both the second DCI and the first downlink data on the second transmission resource.

[0508] For specific implementation details, please refer to the embodiment in Figure 8 and the indication method of the first indication information in 1.9, which will not be repeated here.

[0509] In one possible design of this embodiment, the first frequency domain includes a first transmission resource and a second transmission resource, which have a corresponding relationship. The first transmission resource is used to transmit first indication information, and the second transmission resource is used to transmit DCI. The transmitting module 1910 is used to transmit third indication information in the second frequency domain. The third indication information is used to instruct the information receiving device to switch from the second frequency domain to the first frequency domain, or to instruct the deactivation of the second frequency domain.

[0510] In one possible design of this embodiment, the transmitting module 1910 is used to transmit third indication information via DCI or RRC signaling within the second frequency domain range.

[0511] In one possible design of this embodiment, the third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range.

[0512] In one possible design of this embodiment, the second frequency domain includes a third transmission resource, which is used by the information receiving device to detect DCI and / or third indication information.

[0513] In one possible design of this embodiment, a search space and / or CORESET are configured on the third transmission resource.

[0514] For specific implementation details, please refer to the embodiment in Figure 8 and the characteristics of the second frequency domain range in 1.11, which will not be repeated here.

[0515] This embodiment uses one transmitting module 1910 as an example, and the number of transmitting modules 1910 is not limited.

[0516] For a description of the function of the sending module 1910, please refer to step 1510 in the embodiment shown in Figure 15.

[0517] Figure 20 shows a schematic diagram of the structure of a terminal device provided in an exemplary embodiment of this application. The terminal device 2000 can be used to execute the method steps performed by the terminal device in the above embodiments. The terminal device 2000 may include a processor 2001, a transceiver 2002, and a memory 2003. The processor 2001 can be used to control transmission and / or reception, such as to implement the function of at least one of the switching module 1610, timing module 1630, execution module 1710, timing module 1730, switching module 1820, and execution module 1830. The transceiver 2002 can be used to implement transmission and / or reception functions, such as to implement the function of at least one of the receiving module 1620, receiving module 1720, and receiving module 1810.

[0518] The processor 2001 includes one or more processing cores, and the processor 2001 executes various functional applications and information processing by running software programs and modules.

[0519] The transceiver 2002 may include a receiver and a transmitter, for example, the receiver and transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0520] The memory 2003 can be connected to the processor 2001 and the transceiver 2002.

[0521] The memory 2003 can be used to store a computer program executed by the processor, and the processor 2001 is used to execute the computer program to implement the various steps in the above method embodiments.

[0522] Furthermore, the memory 2003 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static on-demand memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0523] For details not described in this embodiment, please refer to the method-side embodiment above, which will not be repeated here.

[0524] Figure 21 shows a schematic diagram of a network device provided in an exemplary embodiment of this application. The network device 2100 can be used to execute the method steps performed by the network device in the above embodiments. The network device 2100 may include a processor 2101, a transceiver 2102, and a memory 2103. The processor 2101 can be used to control transmission and / or reception. The transceiver 2102 can be used to implement transmission and / or reception functions, such as implementing the functions of the transmission module 1910 described above.

[0525] The processor 2101 includes one or more processing cores. The processor 2101 executes various functional applications and information processing by running software programs and modules.

[0526] Transceiver 2102 may include a receiver and a transmitter. For example, transceiver 2102 may include a wired communication component, which may include a wired communication chip and a wired interface (such as a fiber optic interface). Optionally, transceiver 2102 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0527] The memory 2103 can be connected to the processor 2101 and the transceiver 2102.

[0528] The memory 2103 can be used to store a computer program executed by the processor, and the processor 2101 is used to execute the computer program to implement the various steps in the above method embodiments.

[0529] Furthermore, memory 2103 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static on-demand memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0530] For details not described in this embodiment, please refer to the method-side embodiment above, which will not be repeated here.

[0531] This application also provides a computer-readable storage medium storing a computer program for execution by a processor to implement the frequency domain range switching method on the network device side or the frequency domain range switching method on the terminal device side. In some embodiments, the computer-readable storage medium may include ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or optical disc, etc. The random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0532] This application also provides a chip, which includes programmable logic circuits and / or program instructions. When the chip is running, it is used to implement the frequency domain range switching method on the terminal device side or the frequency domain range switching method on the network device side.

[0533] This application also provides a computer program product, which includes a computer program stored in a computer-readable storage medium. The processor reads and executes the computer program from the computer-readable storage medium to implement the frequency domain range switching method on the terminal device side or the frequency domain range switching method on the network device side.

[0534] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0535] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0536] In some embodiments of this application, "predefined" can be achieved by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0537] In some embodiments of this application, "protocol" may refer to standard protocols in the field of communications, such as LTE protocol, NR protocol and related protocols applied to future communication systems, and this application does not limit it.

[0538] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0539] In this article, "greater than or equal to" can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0540] Furthermore, the step numbers described herein are merely illustrative of one possible execution order between steps. In some other embodiments, the steps may not be executed in the order of their numbers, such as two steps with different numbers being executed simultaneously, or two steps with different numbers being executed in the reverse order of the illustration. This application does not limit this.

[0541] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0542] The above are merely exemplary embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

A frequency domain range switching method, characterized in that, The method is executed by a terminal device, and the method includes: Switching between the first frequency domain range and the second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. The method according to claim 1, characterized in that, The switching between the first frequency domain range and the second frequency domain range includes: If the first switching condition is met, the frequency domain range is switched from the first frequency domain range to the second frequency domain range. The method according to claim 2, characterized in that, The first switching condition includes at least one of the following: A first DCI is received within the first frequency domain; a second indication information is received within the first frequency domain. The data scheduled by the first DCI is located within the second frequency domain, and the second indication information includes index information corresponding to the second frequency domain. The method according to claim 2 or 3, characterized in that, The first frequency domain range is in an active state before the switch. The method according to any one of claims 2 to 4, characterized in that, After switching from the first frequency domain range to the second frequency domain range, the first frequency domain range is in an active state. The method according to claim 1, characterized in that, The switching between the first frequency domain range and the second frequency domain range includes: If the second switching condition is met, switch from the second frequency domain range to the first frequency domain range. The method according to claim 6, characterized in that, The first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The second switching condition includes at least one of the following: a second DCI is detected on the second transmission resource; the first indication information is detected on the first transmission resource; a third indication information sent by a network device is received within the second frequency domain; or a timer expires or becomes invalid. The method according to claim 7, characterized in that, The first indication information is used to indicate at least one of the following: No transmission occurs on the second transmission resource; the second DCI is transmitted on the second transmission resource; first downlink data is transmitted on the second transmission resource; the second DCI and the first downlink data are transmitted on the second transmission resource. The method according to claim 7, characterized in that, The third indication information is carried by the DCI or Radio Resource Control (RRC) signaling transmitted by the network device. The method according to claim 7, characterized in that, The third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range. The method according to claim 10, characterized in that, The second frequency domain includes a third transmission resource, which is used by the terminal device to detect DCI and / or the third indication information. The method according to claim 11, characterized in that, The third transmission resource is configured with a search space and / or a control resource set CORESET. The method according to claim 7, characterized in that, The method further includes: after the second frequency domain range is in an active state, the terminal device starts the timer and detects DCI in the second frequency domain range. The method according to claim 13, characterized in that, The timer is reset when the terminal device detects the DCI. The method according to any one of claims 7, 13, and 14 is characterized in that, The duration of the timer is determined based on network configuration information. The method according to any one of claims 7 to 15, characterized in that, The second frequency domain range is in an active state before the switch, or the first frequency domain range and the second frequency domain range are in the active state before the switch. The method according to any one of claims 1 to 16, characterized in that, The second frequency domain range includes the first frequency domain range. The method according to any one of claims 1 to 17, characterized in that, The method further includes: receiving first configuration information and second configuration information, wherein the first configuration information is used to configure the first frequency domain range and the second configuration information is used to configure the second frequency domain range; or, receiving third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range. The method according to claim 18, characterized in that, The first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; Radio Network Temporary Identification (RNTI) information; encoding information; and code rate indication information. A method for managing frequency domain range, characterized in that, The method is executed by a terminal device, and the method includes: For at least one of the first frequency domain range and the second frequency domain range, perform activation or deactivation; The downlink control information (DCI) detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. The method according to claim 20, characterized in that, The first frequency domain range and the second frequency domain range are at least one of them. Perform activation or deactivation, including: activating the second frequency domain range if the first activation condition is met. The method according to claim 21, characterized in that, The first activation condition includes at least one of the following: A first DCI is received within the first frequency domain; second indication information is received within the first frequency domain; wherein the data scheduled by the first DCI is located within the second frequency domain, and the second indication information includes index information corresponding to the second frequency domain. The method according to claim 21 or 22 is characterized in that, After the second frequency domain range is in an active state, the first frequency domain range is in the active state. The method according to claim 20, characterized in that, The activation or deactivation of at least one of the first frequency domain range and the second frequency domain range includes: deactivating the second frequency domain range when a first deactivation condition is met. The method according to claim 24, characterized in that, The first frequency domain includes a first transmission resource and a second transmission resource. The first transmission resource and the second transmission resource have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The first deactivation condition includes at least one of the following: the second DCI is detected on the second transmission resource; the first indication information is detected on the first transmission resource; a third indication information sent by a network device is received within the second frequency domain; or the timer times out or becomes invalid. The method according to claim 25, characterized in that, The first indication information is used to indicate at least one of the following: No transmission occurs on the second transmission resource; the second DCI is transmitted on the second transmission resource; first downlink data is transmitted on the second transmission resource; the second DCI and the first downlink data are transmitted on the second transmission resource. The method according to claim 25, characterized in that, The third indication information is carried by the DCI or Radio Resource Control (RRC) signaling transmitted by the network device. The method according to claim 25, characterized in that, The third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range. The method according to claim 28, characterized in that, The second frequency domain includes a third transmission resource, which is used by the terminal device to detect DCI and / or the third indication information. The method according to claim 29, characterized in that, The third transmission resource is configured with a search space and / or a control resource set CORESET. The method according to claim 25, characterized in that, The method further includes: after the second frequency domain range is in an active state, the terminal device starts the timer and detects DCI in the second frequency domain range. The method according to claim 31, characterized in that, The timer is reset when the terminal device detects the DCI. The method according to any one of claims 25, 31, and 32 is characterized in that, The duration of the timer is determined based on network configuration information. The method according to any one of claims 20 to 33, characterized in that, The second frequency domain range includes the first frequency domain range. The method according to any one of claims 20 to 34, characterized in that, The method further includes: Receive first configuration information and second configuration information, wherein the first configuration information is used to configure the first frequency domain range and the second configuration information is used to configure the second frequency domain range; or, receive third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range. The method according to claim 35, characterized in that, The first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; Radio Network Temporary Identification (RNTI) information; encoding information; and code rate indication information. An information receiving method, characterized in that, The method is executed by a terminal device, and the method includes: Receive configuration information, the configuration information being used to configure at least one of a first frequency domain range and a second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. The method according to claim 37, characterized in that, The received configuration information includes: Receive first configuration information and second configuration information, wherein the first configuration information is used to configure the first frequency domain range and the second configuration information is used to configure the second frequency domain range; or, receive third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range. The method according to claim 38, characterized in that, The first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; Radio Network Temporary Identification (RNTI) information; encoding information; and code rate indication information. The method according to any one of claims 37 to 39, characterized in that, The method further includes: Switching between the first frequency domain range and the second frequency domain range. The method according to any one of claims 37 to 39, characterized in that, The method further includes: Activation or deactivation is performed on at least one of the first frequency domain range and the second frequency domain range. A method for sending information, characterized in that, The method is performed by a network device, and the method includes: Send configuration information, which is used to configure at least one of a first frequency domain range and a second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is that the terminal device determines whether DCI needs to be detected based on the first indication information. The DCI detection method corresponding to the second frequency domain range is that the terminal device detects DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. The method according to claim 42, characterized in that, The configuration information to be sent includes: Send first configuration information and second configuration information, wherein the first configuration information is used to configure the first frequency domain range and the second configuration information is used to configure the second frequency domain range; or send third configuration information, wherein the third configuration information is used to configure the first frequency domain range and the second frequency domain range. The method according to claim 43, characterized in that, The first configuration information includes at least one of the following: DCI format indication information; the number of information bits corresponding to the DCI; Radio Network Temporary Identification (RNTI) information; encoding information; and code rate indication information. The method according to any one of claims 42 to 44, characterized in that, The method further includes: Transmit the first DCI within the first frequency domain range; The data scheduled by the first DCI is located within the second frequency domain range. The first DCI is used to instruct the terminal device to switch from the first frequency domain range to the second frequency domain range, or to instruct the activation of the second frequency domain range. The method according to any one of claims 42 to 44, characterized in that, The method further includes: Send the second indication information within the first frequency domain range; The second indication information includes index information corresponding to the second frequency domain range. The second indication information is used to instruct the terminal device to switch from the first frequency domain range to the second frequency domain range, or to instruct the activation of the second frequency domain range. The method according to claim 45 or 46 is characterized in that, The first frequency domain range is in an active state before the switch. The method according to any one of claims 45 to 47, characterized in that, After the terminal device switches from the first frequency domain range to the second frequency domain range, the first frequency domain range is in an active state; or, after the second frequency domain range is in an active state, the first frequency domain range is in the active state. The method according to any one of claims 42 to 44, characterized in that, The first frequency domain includes a first transmission resource and a second transmission resource, which have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The method further includes: Send the second DCI on the second transmission resource; The second DCI is used to instruct the terminal device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range. The method according to any one of claims 42 to 44, characterized in that, The first frequency domain includes a first transmission resource and a second transmission resource, which have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The method further includes: Send the first indication information on the first transmission resource; The first indication information is used to instruct the terminal device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range. The method according to claim 50, characterized in that, The first indication information is used to indicate at least one of the following: No transmission occurs on the second transmission resource; the second DCI is transmitted on the second transmission resource; first downlink data is transmitted on the second transmission resource; the second DCI and the first downlink data are transmitted on the second transmission resource. The method according to any one of claims 42 to 44, characterized in that, The first frequency domain includes a first transmission resource and a second transmission resource, which have a corresponding relationship. The first transmission resource is used to transmit the first indication information, and the second transmission resource is used to transmit DCI. The method further includes: Send the third indication information within the second frequency domain; The third indication information is used to instruct the terminal device to switch from the second frequency domain range to the first frequency domain range, or to instruct the deactivation of the second frequency domain range. The method according to claim 52, characterized in that, The step of transmitting the third indication information within the second frequency domain includes: Within the second frequency domain, the third indication information is transmitted via DCI or Radio Resource Control (RRC) signaling. The method according to claim 52, characterized in that, The third indication information includes index information corresponding to the first frequency domain range, or the third indication information includes deactivation indication information for the second frequency domain range. The method according to claim 54, characterized in that, The second frequency domain includes a third transmission resource, which is used by the terminal device to detect DCI and / or the third indication information. The method according to claim 55, characterized in that, The third transmission resource is configured with a search space and / or a control resource set CORESET. The method according to any one of claims 42 to 56, characterized in that, The second frequency domain range includes the first frequency domain range. A frequency domain range switching device, characterized in that, The frequency domain range switching device includes: A switching module is used to switch between a first frequency domain range and a second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device. The second frequency domain range is larger than the first frequency domain range. A frequency domain range management device, characterized in that, The frequency domain range management device includes: The execution module is used to perform activation or deactivation on at least one of the first frequency domain range and the second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device. The second frequency domain range is larger than the first frequency domain range. An information receiving device, characterized in that, The information receiving device includes: A receiving module is configured to receive configuration information, wherein the configuration information is used to configure at least one of a first frequency domain range and a second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is based on the first indication information to determine whether DCI needs to be detected. The DCI detection method corresponding to the second frequency domain range is to detect DCI in the search space configured by the information transmitting device. The second frequency domain range is larger than the first frequency domain range. An information transmission device, characterized in that, The information transmitting device includes: A transmitting module is used to transmit configuration information, wherein the configuration information is used to configure at least one of a first frequency domain range and a second frequency domain range; The downlink control information (DCI) detection method corresponding to the first frequency domain range is that the terminal device determines whether DCI needs to be detected based on the first indication information. The DCI detection method corresponding to the second frequency domain range is that the terminal device detects DCI in the search space configured by the network device. The second frequency domain range is larger than the first frequency domain range. A terminal device, characterized in that, The terminal device includes: A processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the frequency domain range switching method as claimed in any one of claims 1 to 19, or the frequency domain range management method as claimed in any one of claims 20 to 36, or the information receiving method as claimed in any one of claims 37 to 41. A network device, characterized in that, The network device includes: A processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the information transmission method as described in any one of claims 42 to 57. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one program, which is loaded and executed by a processor to implement the frequency domain range switching method as described in any one of claims 1 to 19, or the frequency domain range management method as described in any one of claims 20 to 36, or the information receiving method as described in any one of claims 37 to 41, or the information sending method as described in any one of claims 42 to 57. A chip characterized in that, The chip includes programmable logic circuits and / or program instructions. When the chip is running on a terminal device, it is used to implement the frequency domain range switching method according to any one of claims 1 to 19, or the frequency domain range management method according to any one of claims 20 to 36, or the information receiving method according to any one of claims 37 to 41. When the chip is running on a network device, it is used to implement the information sending method according to any one of claims 42 to 57. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium. A processor retrieves the computer instructions from the computer-readable storage medium and executes the computer instructions to implement the frequency domain range switching method as described in any one of claims 1 to 19, or the frequency domain range management method as described in any one of claims 20 to 36, or the information receiving method as described in any one of claims 37 to 41, or the information sending method as described in any one of claims 42 to 57.

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