Transmission Method of Control Channel, Terminal Device and Network Device

Abstract

The present application relates to a method for transmitting a control channel, a terminal device, and a network device. The method includes: determining a first control resource set, where the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes Nsymb symbols in the time domain; detecting a first control channel candidate in the first control resource set, where the first control channel includes at least one control channel element (CCE), and one CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set. Wherein, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain, or one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain. Using the embodiments of the present application can achieve the transmission of the control channel in the high-frequency range.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly, to a method for transmitting a control channel, a terminal device, and a network device. Background Art

[0002] With the evolution of the fifth-generation mobile communication 5G New Radio (NR) technology, based on the research on Frequency Range 1 (FR1) and Frequency Range 2 (FR2), technologies in new frequency bands (such as 52.6 GHz to 71 GHz or high frequencies) have also begun to be studied. In a high-frequency system, since a larger subcarrier spacing is introduced, the length of one symbol is shorter. For a terminal device, when the behavior of the terminal device for detecting Physical Downlink Control Channel (PDCCH) candidates is the same, for example, when the number of PDCCH candidates to be detected by the terminal device and the aggregation level corresponding to the PDCCH candidates are fixed, if the configured Control Resource Set (CORESET) includes the same number of Resource Blocks (RBs) and the same number of symbols, the larger the subcarrier spacing, the larger the frequency-domain bandwidth corresponding to the CORESET that the terminal device needs to detect, and the terminal device needs to have a higher channel estimation ability. Therefore, the above situation poses a great challenge to the channel estimation ability of the terminal device. In addition, the shorter symbol results in a smaller transmission power of the terminal device, thereby affecting the coverage performance of the PDCCH. Summary of the Invention

[0003] In view of this, embodiments of this application provide a method for transmitting a control channel, a terminal device, and a network device, which can be used for transmitting a control channel in a high-frequency range.

[0004] An embodiment of this application provides a method for transmitting a control channel, which is applied to a terminal device and includes:

[0005] Determine a first control resource set, where the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0006] Detect a first control channel candidate in the first control resource set, where the first control channel includes at least one Control Channel Element (CCE). Among them, one CCE in the first control resource set includes S Resource Element Groups (REGs) in the first control resource set, and S is a positive integer, where

[0007] One REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain; or,

[0008] One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers.

[0009] An embodiment of the present application provides a method for transmitting a control channel, which is applied to a network device and includes:

[0010] Sending first configuration information to a terminal device, where the first configuration information is used to determine a first control resource set, the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0011] Sending a first control channel in the first control resource set, where the first control channel includes at least one control channel element (CCE). Among them, one CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, and S is a positive integer. Among them,

[0012] One REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain; or,

[0013] One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers.

[0014] An embodiment of the present application further provides a terminal device, including:

[0015] A determination module, configured to determine a first control resource set, the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0016] A detection module, configured to detect a first control channel candidate in the first control resource set, where the first control channel includes at least one control channel element (CCE), and one CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, and S is a positive integer; where

[0017] One REG in the first control resource set includes one symbol in the first control resource set and one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain; or,

[0018] One REG in the first control resource set includes N consecutive symbols in the first control resource set and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers.

[0019] An embodiment of this application further provides a network device, including:

[0020] A first sending module, configured to send first configuration information to a terminal device, where the first configuration information is used to determine a first control resource set, the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0021] A second sending module, configured to send a first control channel in the first control resource set, where the first control channel includes at least one control channel element (CCE), and one CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, and S is a positive integer, where

[0022] One REG in the first control resource set includes one symbol in the first control resource set and one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain; or,

[0023] One REG in the first control resource set includes N consecutive symbols in the first control resource set and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers.

[0024] An embodiment of this application further provides a terminal device, including: a processor and a memory, where the memory is used to store a computer program, and the processor calls and runs the computer program stored in the memory to execute the method described above.

[0025] An embodiment of this application also provides a network device, including: a processor and a memory, where the memory is used to store a computer program, and the processor calls and runs the computer program stored in the memory to execute the method described above.

[0026] An embodiment of this application also provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method described above.

[0027] An embodiment of this application also provides a computer-readable storage medium, configured to store a computer program, where the computer program enables a computer to execute the method described above.

[0028] An embodiment of this application also provides a computer program product, including computer program instructions, where the computer program instructions enable a computer to execute the method described above.

[0029] An embodiment of this application also provides a computer program, where the computer program enables a computer to execute the method described above.

[0030] Embodiments of this application can be used for control channel transmission processing in various frequency ranges, and are particularly applicable to control channel transmission in high-frequency systems. When a terminal device detects control channel candidates such as PDCCH candidates, more PDCCH candidates can be detected without increasing the channel estimation capability, thereby improving the overall performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the communication system architecture according to an embodiment of this application.

[0032] Figure 2 is a schematic diagram of the effect of CORESET frequency domain resource configuration.

[0033] Figure 3A 、 3B and 3C are respectively schematic diagrams of REG numbers in CORESET where N symb are 1, 2, and 3 respectively, and N RB is 6.

[0034] Figure 4 is a flowchart of the control channel transmission method according to an embodiment on the terminal side of this application.

[0035] Figure 5 is a flowchart of the control channel transmission method according to an embodiment on the network side of this application.

[0036] Figures 6A to 6CIt is a schematic diagram of the CCE-to-REG mapping method when the CORESET of the embodiment of the present application includes 6 RBs in the frequency domain, 6 symbols in the time domain, and 6 REGs in one REG bundle.

[0037] Figures 7A to 7F It is a schematic diagram of the CCE-to-REG mapping method when the CORESET of the embodiment of the present application includes 6 RBs in the frequency domain, 12 symbols in the time domain, and 6 REGs in one REG bundle.

[0038] Figure 8A It is a schematic diagram of the positions of the REGs in the first 2 RBs in the existing CORESET.

[0039] Figure 8B and 8C They are respectively schematic diagrams of the positions of the REGs in the first 2 RBs in the CORESET when Nsymb is 6 and 4 in the embodiment of the present application.

[0040] Figure 9 It is a schematic structural block diagram of the terminal device of the embodiment of the present application.

[0041] Figure 10 It is a schematic structural block diagram of the network device of the embodiment of the present application.

[0042] Figure 11 It is a schematic block diagram of the communication device of the embodiment of the present application.

[0043] Figure 12 It is a schematic block diagram of the chip of the embodiment of the present application.

[0044] Figure 13 It is a schematic block diagram of the communication system of the embodiment of the present application. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application.

[0046] The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems, etc.

[0047] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technologies, mobile communication systems will not only support traditional communications, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of this application can also be applied to these communication systems.

[0048] Optionally, the communication system in the embodiments of the present application can be applied to a Carrier Aggregation (CA) scenario, a Dual Connectivity (DC) scenario, or a Standalone (SA) networking scenario.

[0049] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices. Among them, the terminal device can also be referred to as a User Equipment (UE), access terminal, user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0050] The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0051] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as on a ship, etc.); or it can be deployed in the air (such as on an airplane, a balloon, a satellite, etc.).

[0052] In the embodiments of the present application, the terminal device may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0053] As an example but not a limitation, in the embodiments of the present application, the terminal device may also be a wearable device. A wearable device can also be called a wearable intelligent device, which is a general term for devices developed by applying wearable technology to the intelligent design of daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions and large sizes that can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and those that only focus on a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for physical sign monitoring.

[0054] In the embodiments of the present application, the network device may be a device used to communicate with a mobile device. The network device may be an access point (AP) in a WLAN, a base transceiver station (BTS) in GSM or CDMA, or a base station (NodeB, NB) in WCDMA. It may also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, etc.

[0055] By way of example and not limitation, in the embodiments of the present application, the network device may have mobility characteristics. For example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, etc.

[0056] In the embodiments of the present application, the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or in other words, spectrum resources). The cell may be a cell corresponding to the network device (such as a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage range and low transmission power, and are suitable for providing high-rate data transmission services.

[0057] Figure 1 Schematically shown is a network device 1100 and two terminal devices 1200. Optionally, the wireless communication system 1000 may include multiple network devices 1100, and the coverage range of each network device 1100 may include other numbers of terminal devices. The embodiments of the present application do not limit this. Optionally, Figure 1 The shown wireless communication system 1000 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF). The embodiments of the present application do not limit this.

[0058] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is used to describe the association relationship of associated objects. For example, it may represent three relationships between the front and rear associated objects. By way of example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " in this article generally represents an "or" relationship between the front and rear associated objects.

[0059] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect corresponding relationship between two parties, may also indicate an association relationship between the two parties, or may be a relationship such as indication and being indicated, configuration and being configured, etc.

[0060] In the description of the embodiments of the present application, "preset" can be implemented by pre-saving corresponding codes, tables or other means that can be used to indicate relevant information in a device (for example, including a terminal device and a network device). The present application does not limit its specific implementation manner. For example, the preset can refer to what is defined in a protocol.

[0061] In the description of the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field. For example, it may include the LTE protocol, the NR protocol, and relevant protocols applied to future communication systems. The present application does not limit this.

[0062] To clearly elaborate on the concept of the embodiments of the present application, first, a brief description is given of the relevant aspects of control channel transmission in a communication system. The embodiments of the present application include some or all of the following content.

[0063] 1. Regarding the background related to high frequencies

[0064] The NR system currently mainly studies two frequency bands, FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). The two frequency band ranges are FR1: 410 MHz - 7.125 GHz and FR2: 24.25 GHz - 52.6 GHz respectively. With the evolution of the NR system, technologies on new frequency bands, that is, high frequencies, have also begun to be studied. The new frequency band includes a frequency domain range of 52.6 GHz - 71 GHz. For ease of description, in the present application, FRX is used to represent the frequency domain range included in this new frequency band. It should be understood that the name of this frequency band should not constitute any limitation.

[0065] The FRX frequency band includes licensed spectrum and also includes unlicensed spectrum. Or rather, the FRX frequency band includes non-shared spectrum and also includes shared spectrum. Unlicensed spectrum is the spectrum allocated by countries and regions for radio device communication. This spectrum is usually considered shared spectrum, that is, communication devices in different communication systems can use this spectrum as long as they meet the regulatory requirements set by the country or region on this spectrum, and do not need to apply for exclusive spectrum authorization.

[0066] In order for various communication systems using unlicensed spectrum for wireless communication to coexist amicably on this spectrum, some countries or regions have stipulated the regulatory requirements that must be met when using unlicensed spectrum. For example, communication devices follow the "Listen Before Talk (LBT)" principle, that is, before a communication device sends a signal on a channel of the unlicensed spectrum, it needs to first perform channel sensing. Only when the channel sensing result indicates that the channel is idle can the communication device send a signal; if the channel sensing result of the communication device on a channel of the unlicensed spectrum indicates that the channel is busy, the communication device cannot send a signal. Another example is that in order to ensure fairness, in one transmission, the duration for a communication device to use a channel of the unlicensed spectrum for signal transmission cannot exceed a certain time length. Another example is that in order to avoid the power of the signal transmitted on a channel of the unlicensed spectrum being too large and affecting the transmission of other important signals on this channel, a communication device needs to follow the limit of not exceeding the maximum power spectral density when using a channel of the unlicensed spectrum for signal transmission.

[0067] Note that the subcarrier spacing considered for the FRX band can be larger than that of FR2. Currently, the candidate subcarrier spacings include at least one of the following: 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, 3.84 MHz. As an example, the corresponding parameter sets (Numerology) for these candidate subcarrier spacings are shown in Table 1.

[0068] Table 1

[0069] Subcarrier spacing Symbol length Normal CP length Extended CP length Slot length 240 kHz 4.16 us 0.292 us 1.04 us 62.5 us 480 kHz 2.08 us 0.146 us 0.52 us 31.25 us

[0070] 960 kHz 1.04 us 0.073 us 0.26 us 15.625 us 1.92 MHz 0.52 us 0.037 us 0.13 us 7.8125 us 3.84 MHz 0.26 us 0.018 us 0.065 us 3.90625 us

[0071] 2. Regarding the transmission of control channels in NR

[0072] In the NR system, the resource set used to transmit the Physical Downlink Control Channel (PDCCH) is called the Control-resource set (CORESET). A CORESET can include N RB resource blocks (RBs) in the frequency domain and N symb symbols in the time domain. Among them, the time-domain resource N symb is configured by the network device through high-layer parameters such as duration, and the value range is 1 to 3. The frequency-domain resource N RBIt is also configured by the network device through high-layer parameters (such as frequencyDomainResources). Specifically, it can be configured by means of bit mapping. For example, frequencyDomainResources includes 45 bits. Among them, each bit corresponds to one PRB group, and each PRB group includes 6 RBs. A bandwidth part BWP can include a plurality of non-overlapping and continuous PRB groups, and there is a one-to-one mapping relationship between this bit stream and the PRB groups included in this BWP.

[0073] Among them, the first bit corresponds to the first PRB group within a BWP, and the starting position of this first PRB group is determined according to the starting position Nstart of this BWP, that is, the index of the first PRB in this first PRB group is 6×ceil(Nstart / 6), where ceil represents rounding up. Figure 2 Fig. shows an example of CORESET frequency-domain resource configuration. If the bit value is 1, the corresponding PRB is configured as a CORESET; if the bit value is 0, the corresponding PRB is not configured as a CORESET.

[0074] A control-channel element (CCE) includes 6 resource-element groups (REGs), and one REG in a CORESET includes one RB corresponding to one symbol. In a CORESET, the REGs are numbered in the order of time domain first and then frequency domain. Figure 3A 、 3B Figs. 3A, 3B, and 3C respectively show the schematic diagram of the numbering of REGs when there are 6 RBs in a CORESET and N RB is 6 RBs and N symb is 1, 2, and 3 symbols respectively.

[0075] A terminal device can be configured with multiple CORESETs. Among them, each CORESET only corresponds to one CCE-to-REG mapping method. For a CORESET, the corresponding CCE-to-REG mapping method can be interleaved or non-interleaved. The CCE-to-REG mapping method is implemented through a REG bundle, which is briefly described below.

[0076] Specifically, the size of the REG bundle can be represented by L, and REG bundle i is defined as: REG{iL, iL + 1,..., iL + L - 1}, i = 0, 1,..., N REG / L - 1, where NREG = N RB * N symb , representing the number of REGs included in a CORESET. The REG bundle included in CCE j is {f(6j / L), f(6j / L + 1), …, f(6j / L + 6 / L - 1)}, where f(.) represents an interleaver.

[0077] For the non-interleaved CCE-to-REG mapping method, L = 6 and f(x) = x. For the interleaved CCE-to-REG mapping method, when N symb = 1, L takes values of 2 or 6; when N symb = 2 or 3, L takes values of N symb or 6.

[0078] The interleaver f(.) can be defined as follows:

[0079] f(x) = (pC + q + n shift ) mod (N REG / L)

[0080] x = qR + p

[0081] p = 0, 1, …, R - 1

[0082] q = 0, 1, …, C - 1

[0083] C = N REG / (LR)

[0084] where R takes values of 2 or 3 or 6; C is an integer.

[0085] The CCE-to-REG mapping method corresponding to the CORESET is configured by the network device through high-layer parameters (such as cce-REG-MappingType).

[0086] For the interleaved CCE-to-REG mapping method, L is configured by the network device through high-layer parameters (such as reg-BundleSize); R is configured by the network device through high-layer parameters (such as interleaverSize); n shift is configured by the network device through high-layer parameters (such as shiftIndex), or, if no high-layer parameter is configured, n shift can take n cell_ID = N

[0087] For both the interleaved and non-interleaved CCE-to-REG mapping methods, the UE can make the following assumptions:

[0088] If the higher layer parameter indicates that the precoding granularity is equal to the size of one REG bundle, for example, precoderGranularity is equal to sameAsREG-bundle, the same precoding is used in one REG bundle;

[0089] If the higher layer parameter indicates that the precoding granularity is equal to all consecutive RBs, for example, precoderGranularity is equal to allContiguousRBs, the same precoding is used for all REGs in the set of consecutive RBs in this CORESET;

[0090] Wherein, the UE can also assume, according to the indication of higher layer parameters such as lte-CRS-ToMatchAround or additionalLTE-CRS-ToMatchAroundList, that there is no RE in this CORESET overlapping with the SSB or the common reference signal (cell-specific reference signals, CRS) of LTE.

[0091] A PDCCH can be mapped to one or more CCEs, or in other words, a PDCCH includes one or more CCEs, where the number of these CCEs is also referred to as the aggregation level (AL). The currently supported PDCCH aggregation levels are shown in Table 2.

[0092] Table 2

[0093] Aggregation level Number of CCEs 1 1 2 2 4 4 8 8 16 16

[0094] 3. Regarding the transmission of control channels in high frequency

[0095] In a high frequency system, due to the introduction of a larger subcarrier spacing, the length of one symbol is shorter. For a terminal device, when the behavior of the terminal device detecting PDCCH candidates is the same, for example, the number of PDCCH candidates to be detected by the terminal device and the aggregation level corresponding to the PDCCH candidates are certain, if the configured CORESET includes the same number of RBs and the same number of symbols, the larger the subcarrier spacing, the larger the frequency domain bandwidth corresponding to the CORESET that the terminal device needs to detect. In this case, it will pose a greater challenge to the channel estimation ability of the terminal device. On the other hand, the shorter symbol will result in a smaller transmit power of the terminal device, thus affecting the coverage performance of the PDCCH. It can be seen that the CORESET under a large subcarrier spacing needs to be enhanced.

[0096] For this reason, the embodiments of the present application provide a method for transmitting a control channel, which is applied to a terminal device. Refer to Figure 4 , the method includes:

[0097] S101. Determine a first control resource set CORESET. The first control resource set corresponds to a first subcarrier spacing. The first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0098] S102. Detect a first control channel candidate in the first control resource set. The first control channel includes at least one control channel element CCE. Wherein, one CCE in the first control resource set includes S resource element groups REG in the first control resource set, and S is a positive integer. Wherein,

[0099] one REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain; or,

[0100] one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers.

[0101] Embodiments of the present application can be used for control channel transmission processing in various frequency ranges, and are particularly suitable for control channel transmission in high-frequency systems. It can enable a terminal device to detect more PDCCH candidates without increasing channel estimation capabilities when detecting a control channel candidate such as a PDCCH candidate (PDCCH candidate), improving the overall performance of the terminal.

[0102] Correspondingly, an embodiment of the present application further provides a method for transmitting a control channel, which is applied to a network device. Refer to Figure 5 , and this method includes:

[0103] S201. Send first configuration information to a terminal device. The first configuration information is used to determine a first control resource set. The first control resource set corresponds to a first subcarrier spacing. The first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0104] S202. Send a first control channel in the first control resource set. The first control channel includes at least one control channel element CCE. Wherein, one CCE in the first control resource set includes S resource element groups REG in the first control resource set, and S is a positive integer. Wherein,

[0105] One REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain; or,

[0106] One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers.

[0107] Using the embodiments of the present application can enable a terminal device to detect more PDCCH candidates without increasing the channel estimation ability when detecting a control channel candidate such as a PDCCH candidate, and can also improve the coverage performance of the PDCCH, thereby improving the system performance as a whole.

[0108] It should be understood that the present application can also be used in other scenarios for detecting control channel candidates in a control channel resource set, and the present application is not limited thereto. For example, the present application can be applied to the communication between terminal devices. In this case, the control channel resource set can be a resource set for a terminal device to detect a Physical Sidelink Control Channel (PSCCH) candidate.

[0109] According to an embodiment of the present application, optionally, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the REG in the first control resource set is numbered starting from 0 in a time-first and frequency-second manner from the first symbol in the first control resource set and the subcarrier with the smaller number among the RBs with the smallest numbers.

[0110] According to an embodiment of the present application, optionally, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N symbols in the first control resource set in the frequency domain, where M×N = 12, M is greater than or equal to 1 and less than or equal to 12, and M is a positive integer. For example, N = 4 and M = 3. Another example is N = 6 and M = 2. Another example is N = 12 and M = 1.

[0111] According to an embodiment of the present application, optionally, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N = N symb 。

[0112] According to an embodiment of the present application, optionally, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the REG in the first control resource set does not include a demodulation reference signal DMRS.

[0113] According to an embodiment of the present application, optionally, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the M subcarriers are consecutive M subcarriers, or the M subcarriers are consecutive M subcarriers without considering DMRS.

[0114] According to an embodiment of the present application, optionally, S takes the value of 6.

[0115] According to an embodiment of the present application, optionally, the first subcarrier spacing is greater than or equal to 60 kHz.

[0116] According to an embodiment of the present application, optionally, the first subcarrier spacing includes at least one of the following subcarrier spacings: 60 kHz, 120 kHz, 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, 3.84 MHz. For example, the first subcarrier spacing is 960 kHz. Another example, the first subcarrier spacing is 480 kHz.

[0117] According to an embodiment of the present application, optionally, if N symb is greater than a first preset value or the maximum configured value corresponding to N symb is greater than the first preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; or,

[0118] if N symb is less than or equal to the first preset value, or the maximum configured value corresponding to N symb is less than or equal to the first preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and one resource block RB corresponding to the symbol in the first control resource set in the frequency domain. For example, the first preset value can be 3 symbols. Another example, the first preset value can be 3 symbols.

[0119] Alternatively, REG is determined based on the maximum number of configured symbols or the maximum number of symbols that can be configured in the CORESET. The definition of the corresponding REG is different in different configuration cases. For example, in this embodiment, if the number of configured symbols in the CORESET is greater than a first preset value, REGs defined based on subcarriers are adopted; or, if the number of configured symbols in the CORESET is less than or equal to the first preset value, REGs defined based on RBs are adopted.

[0120] According to an embodiment of the present application, optionally, if the first subcarrier spacing is greater than a second preset value, one REG in the first control resource set includes N consecutive symbols in the time domain in the first control resource set and M subcarriers corresponding to the N consecutive symbols in the frequency domain in the first control resource set; or,

[0121] if the first subcarrier spacing is less than or equal to the second preset value, one REG in the first control resource set includes one symbol in the time domain in the first control resource set and one resource block RB corresponding to the symbol in the frequency domain in the first control resource set. For example, the second preset value may be 120 kHz. For another example, the second preset value may be 240 kHz.

[0122] Alternatively, REG is determined based on the subcarrier spacing corresponding to the CORESET. The definition of the corresponding REG is different in different subcarrier spacing configuration cases. For example, in this embodiment, if the subcarrier spacing corresponding to the CORESET is greater than a second preset value, REGs defined based on subcarriers are adopted; or, if the subcarrier spacing corresponding to the CORESET is less than or equal to the second preset value, REGs defined based on RBs are adopted.

[0123] According to an embodiment of the present application, optionally, the S REGs include S / L REG bundles, where one REG bundle includes L REGs, and the REG numbers included in the i-th REG bundle are {iL, iL + 1,..., iL + L - 1}, i = 0, 1,..., N REG / L - 1, N REG represents the number of REGs included in the first control resource set, and both L and N REG are positive integers.

[0124] According to an embodiment of the present application, optionally, one CCE in the first control resource set includes S resource element groups REGs in the first control resource set, and the mapping relationship between the CCE and the S REGs includes:

[0125] The REG bundle numbers included in the j-th CCE are {f(jS / L), f(jS / L + 1), …, f(jS / L + S / L - 1)}, where f(.) represents an interleaver.

[0126] According to an embodiment of the present application, optionally, S, N symb and L satisfy at least one of the following relationships:

[0127] · When N symb is greater than or equal to 6, L takes the value of 6;

[0128] · L = S;

[0129] · S is an integer multiple of L.

[0130] According to an embodiment of the present application, optionally, the interleaver f(.) includes:

[0131] f(x) = (pC + q + n shift ) mod (N REG / L)

[0132] x = qR + p

[0133] p = 0, 1, …, R - 1

[0134] q = 0, 1, …, C - 1

[0135] C = N REG / (LR)

[0136] where n shift is preset or configured by a network device; L is preset or configured by a network device; R is preset or configured by a network device.

[0137] For example, N symb = 6, L = 6. Another example, N symb = 12, L = 6.

[0138] For example, S = 6, L = 6. Another example, S = 4, L = 4.

[0139] For example, S = 6, L = 2. Another example, S = 6, L = 3. For example, S = 12, L = 6.

[0140] According to an embodiment of the present application, optionally, L = S, and the interleaver f(.) includes:

[0141] f(x) = x.

[0142] According to an embodiment of the present application, optionally, the maximum configuration value corresponding to N symb is greater than 3.

[0143] According to an embodiment of the present application, optionally, if the first subcarrier spacing is greater than or equal to a third preset value, N symb The corresponding minimum configuration value is greater than 1. For example, the third preset value may be 480 kHz.

[0144] According to an embodiment of the present application, optionally, N symb The corresponding minimum configuration value is determined according to the subcarrier spacing corresponding to the CORESET. The corresponding N symb The corresponding minimum configuration values may be different in different subcarrier spacing configuration cases. For example, if the subcarrier spacing corresponding to the CORESET is greater than or equal to the third preset value, then N symb The corresponding minimum configuration value is greater than 1; or, if the subcarrier spacing corresponding to the CORESET is less than the third preset value, then N symb The corresponding minimum configuration value is equal to 1.

[0145] According to an embodiment of the present application, optionally, N symb The configuration range includes at least one of the following:

[0146] · {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};

[0147] · {1, 2, 3, 4, 6, 12};

[0148] · {1, 2, 3, 6, 12};

[0149] · {1, 2, 3, 4, 6};

[0150] · {1, 2, 3, 6}.

[0151] Optionally, N symb May take the number in at least one of the above configuration ranges.

[0152] According to an embodiment of the present application, optionally, the method further includes: determining a second control resource set, the second control resource set corresponding to a second subcarrier spacing, wherein,

[0153] The configuration range of the number of symbols included by the second control resource set in the time domain is different from the configuration range of the number of symbols included by the first control resource set in the time domain; or,

[0154] The maximum configuration value of the number of symbols included by the second control resource set in the time domain is different from the maximum configuration value of the number of symbols included by the first control resource set in the time domain.

[0155] For example, if the CORESET corresponds to a 120 kHz subcarrier spacing, N symbThe configuration range of is {1, 2, 3}. If the CORESET corresponds to a 480 kHz subcarrier spacing, N symb The configuration range of is {1, 2, 3, 4, 6, 12}.

[0156] According to an embodiment of the present application, optionally, determining the first control resource set includes: determining the first control resource set according to the first configuration information sent by the network device. For example, the first configuration information includes at least one of the following: Information element (IE) CORESET, the high-layer parameter duration, the high-layer parameter frequencyDomainResources, etc.

[0157] According to an embodiment of the present application, optionally, the configuration range of the number of symbols corresponding to the first control resource set or the maximum configured value of the number of symbols is associated with at least one of the following parameters:

[0158] · The maximum number of detectable PDCCH candidates per serving cell and per time slot corresponding to the first subcarrier spacing;

[0159] · The maximum number of detectable PDCCH candidates per serving cell and per time-frequency range combination (X, Y) corresponding to the first subcarrier spacing;

[0160] · The maximum number of non-overlapping CCEs detectable per time slot on a downlink bandwidth part BWP of a serving cell corresponding to the first subcarrier spacing;

[0161] · The maximum number of non-overlapping CCEs detectable per time-frequency range combination (X, Y) on a downlink bandwidth part BWP of a serving cell corresponding to the first subcarrier spacing.

[0162] According to an embodiment of the present application, optionally, each time-frequency range combination may correspond to at least one of the following in the time domain: time slots corresponding to one or more first subcarrier spacings, one subframe, 1 millisecond, time slots corresponding to one or more reference subcarrier spacings. Optionally, the reference subcarrier spacing is less than or equal to the first subcarrier spacing. Optionally, the reference subcarrier spacing is the minimum subcarrier spacing supported within the FRX frequency domain range. Optionally, the reference subcarrier spacing is 60 kHz. Optionally, the reference subcarrier spacing is preset or configured by the network device.

[0163] According to an embodiment of the present application, it is applicable to the transmission of control channels in the NR system (high frequency). Among them, for the CORESET configuration under a large subcarrier spacing, the number of symbols included in one CORESET can be greater than 3; further, the configurable symbol range or the number of symbols corresponding to the CORESET corresponding to different subcarrier spacings can be different; for the interleaved CCE-to-REG mapping method, when N symb is greater than or equal to 6, the value of L is 6; for a REG, one REG can include M subcarriers corresponding to N symbols, where M×N = 12, and M is a positive integer greater than or equal to 1 and less than or equal to 12.

[0164] The implementation manners of the embodiments of the present application are described through multiple embodiments above. The following describes the specific implementation processes of the embodiments of the present application through multiple specific examples.

[0165] The embodiments of the present application can enhance the first CORESET corresponding to the first subcarrier spacing. Among them, optionally, the first subcarrier spacing includes at least one of 60 kHz, 120 kHz, 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, and 3.84 MHz; the number of symbols included in the first CORESET can be greater than 3. Specifically, in one case, the number of symbols included in the first CORESET increases, so the CCE-to-REG mapping method needs to be redesigned. In another case, the first CORESET can be repeated in the time domain. The following describes them in detail respectively.

[0166] Case 1: The number of symbols included in the first CORESET increases

[0167] In the embodiments of the present application, optionally, the configurable symbol range or the maximum number of symbols corresponding to the CORESET corresponding to different subcarrier spacings are different.

[0168] For example, if the first subcarrier spacing is 240 kHz, the configurable symbol range corresponding to the first CORESET is {1, 2, 3, 6}; or, if the first subcarrier spacing is 480 kHz, the configurable symbol range corresponding to the first CORESET is {1, 2, 3, 6, 12}.

[0169] In the embodiments of the present application, optionally, the configurable symbol range or the maximum number of symbols corresponding to the CORESET corresponding to different subcarrier spacings are the same and include at least one number greater than 3. For example, the configurable symbol range corresponding to the CORESET is {1, 2, 3, 6, 12}. Another example is that the configurable symbol range corresponding to the CORESET is {1~14}.

[0170] In an embodiment of the present application, optionally, the configurable symbol range or the maximum number of symbols corresponding to the first CORESET is associated with at least one of the following parameters:

[0171] · The maximum number of detectable PDCCH candidates per serving cell and per time slot corresponding to the first subcarrier spacing;

[0172] · The maximum number of detectable PDCCH candidates per serving cell and per time-frequency range combination (X, Y) corresponding to the first subcarrier spacing;

[0173] · The maximum number of non-overlapping CCEs detectable per time slot on a downlink bandwidth part BWP of a serving cell corresponding to the first subcarrier spacing;

[0174] · The maximum number of non-overlapping CCEs detectable per time-frequency range combination (X, Y) on a downlink bandwidth part BWP of a serving cell corresponding to the first subcarrier spacing.

[0175] Optionally, each time-frequency range combination (X, Y) may correspond to at least one of the following in the time domain: time slots corresponding to one or more first subcarrier spacings, one subframe, 1 millisecond, time slots corresponding to one or more reference subcarrier spacings.

[0176] Optionally, the reference subcarrier spacing may be at least one of the following:

[0177] · The reference subcarrier spacing is less than or equal to the first subcarrier spacing.

[0178] · The reference subcarrier spacing is the minimum subcarrier spacing supported within the FRX frequency domain range.

[0179] · The reference subcarrier spacing is 240 kHz.

[0180] In some alternative embodiments, for the interleaved CCE-to-REG mapping method, when N symb is greater than or equal to 6, L takes the value of 6. For example, when N symb = 6, L takes the value of 6. Another example is when N symb = 12, L takes the value of 6; or, for the interleaved CCE-to-REG mapping method, when N symb is greater than or equal to 6, the interleaver can be considered to be CCE-based interleaving.

[0181] In some alternative embodiments, for the non-interleaved CCE-to-REG mapping method, the value range of N symb can be any number from 1 to 14.

[0182] In an embodiment of the present application, optionally, the parameter configuration needs to satisfy that an integer number of REGs are included in one CORESET, and / or, the parameter configuration needs to satisfy that an integer number of REG bundles are included in one CORESET, and / or, the parameter configuration needs to satisfy that an integer number of CCEs are included in one CORESET.

[0183] Optionally, for the interleaved CCE-to-REG mapping method, N symb has a value range including {1, 2, 3, 6, 12}.

[0184] Optionally, for the interleaved and non-interleaved CCE-to-REG mapping methods, N symb has a value range including {1, 2, 3, 6, 12}.

[0185] Optionally, the interleaver can be defined as:

[0186] f(x) = (pC + q + n shift ) mod (N REG / L)

[0187] x = qR + p

[0188] p = 0, 1, …, R - 1

[0189] q = 0, 1, …, C - 1

[0190] C = N REG / (LR)

[0191] where R takes a value of 2 or 3 or 6. C is an integer.

[0192] Optionally, one REG includes M subcarriers corresponding to N symbols, where M × N = 12. M is a positive integer greater than or equal to 1 and less than or equal to 12. Optionally, N = N symb .

[0193] Optionally, for the interleaved and non-interleaved CCE-to-REG mapping methods, N symb has a value range including {1, 2, 3, 4, 6, 12}.

[0194] The following describes in detail a plurality of specific examples belonging to the above Case 1 in conjunction with the accompanying drawings.

[0195] Example 1

[0196] In this embodiment, referring to Figures 6A - 6C , assume that one CORESET includes N RB = 6 RBs in the frequency domain and N symb= 6 symbols, with L taking the value of 6, then this CORESET includes N REG = 36 REGs. Among them, when this CORESET is configured in an interleaved CCE-to-REG mapping mode or a non-interleaved CCE-to-REG mapping mode, according to the aforementioned interleaver, the corresponding CCE-REG mapping mode can be as Figure 6B and 6C shown, where Figure 6B is the non-interleaved CCE-to-REG mapping mode, Figure 6C is the interleaved CCE-to-REG mapping mode.

[0197] Example 2

[0198] In this embodiment, referring to Figures 7A - 7F , assuming a CORESET includes N RB = 6 RBs in the frequency domain and N symb = 12 symbols in the time domain, with L taking the value of 6, then this CORESET includes N REG = 72 REGs. Among them, the corresponding CCE-REG mapping of this CORESET can include at least one of the mapping modes such as Figure 7C , 7D , 7E and 7F shown.

[0199] Example 3

[0200] In this embodiment, referring to Figures 8A - 8C , one REG includes M subcarriers corresponding to N symbols, where M×N = 12. M is a positive integer greater than or equal to 1 and less than or equal to 12. Optionally, N = N symb .

[0201] Optionally, for the interleaved and non-interleaved CCE-to-REG mapping modes, the value range of N symb includes {1, 2, 3, 4, 6, 12}.

[0202] Referring to Figure 8B , assuming a CORESET includes N symb = 6 symbols in the frequency domain and in the time domain, then 1 REG includes M = 2 subcarriers corresponding to these 6 symbols.

[0203] Referring to Figure 8C , assuming a CORESET includes N symb = 4 symbols in the frequency domain and in the time domain, then 1 REG includes M = 3 subcarriers corresponding to these 4 symbols.

[0204] Correspondingly, Figure 8AA schematic diagram showing the positions of REGs in the first 2 RBs in an existing CORESET. Figure 8B and 8C respectively show the schematic diagrams of the positions of REGs in the first 2 RBs in the CORESET when N symb = 6 and N symb = 4. In the examples of Figure 8B and 8C subcarriers numbered 1, 5, and 9 in an RB can be used to place Demodulation Reference Signals (DMRS). Among them, the M subcarriers included in one REG are consecutive M subcarriers without considering DMRS.

[0205] Case 2: The first CORESET is repeated in the time domain

[0206] In some embodiments of the present application, optionally, when the first CORESET is repeated in the time domain, frequency hopping transmission can be performed.

[0207] In some embodiments of the present application, optionally, when the first CORESET is repeated in the time domain, different copies can correspond to different scrambling sequences.

[0208] The above describes the specific settings and implementation manners of the embodiments of the present application from different perspectives through multiple embodiments. Corresponding to the processing methods of at least one of the above embodiments, the embodiments of the present application also provide a terminal device 100. Refer to Figure 9 which includes:

[0209] A determination module 110, configured to determine a first control resource set, where the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0210] A detection module 120, configured to detect a first control channel candidate in the first control resource set, where the first control channel includes at least one control channel element CCE. Among them, one CCE in the first control resource set includes S resource element groups REGs in the first control resource set, and S is a positive integer; where

[0211] one REG in the first control resource set includes one symbol in the first control resource set in the time domain and one resource block RB corresponding to the symbol in the first control resource set in the frequency domain; or

[0212] One REG in the first control resource set includes N consecutive symbols in the time domain in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the frequency domain in the first control resource set, where both N and M are positive integers.

[0213] Corresponding to the processing method of the foregoing at least one embodiment, an embodiment of the present application further provides a network device 200. Refer to Figure 10 which includes:

[0214] A first sending module 210, configured to send first configuration information to a terminal device, where the first configuration information is used to determine a first control resource set, the first control resource set corresponds to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, and N symb is a positive integer;

[0215] A second sending module 220, configured to send a first control channel in the first control resource set, where the first control channel includes at least one control channel element CCE. Among them, one CCE in the first control resource set includes S resource element groups REG in the first control resource set, and S is a positive integer. Among them,

[0216] one REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain; or

[0217] one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where both N and M are positive integers.

[0218] The terminal device 100 and the network device 200 in the embodiments of the present application can implement the corresponding functions of the terminal device in the foregoing method embodiments. For the corresponding processes, functions, implementation manners, and beneficial effects of each module (sub-module, unit, or component, etc.) in the terminal device 100 and the network device 200, reference may be made to the corresponding descriptions in the foregoing method embodiments, and details are not described herein again.

[0219] It should be noted that the functions described for each module (sub-module, unit, or component, etc.) in the terminal device 100 and the network device 200 according to the embodiments of the present application can be implemented by different modules (sub-modules, units, or components, etc.), or by the same module (sub-module, unit, or component, etc.). For example, the first sending module and the second sending module can be different modules or the same module, and both can implement the corresponding functions of the terminal device according to the embodiments of the present application.

[0220] Figure 11 FIG. 600 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0221] Optionally, the communication device 600 may further include a memory 620. The processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0222] The memory 620 can be a separate device independent of the processor 610 or integrated in the processor 610.

[0223] Optionally, the communication device 600 may further include a transceiver 630. The processor 610 can control the transceiver 630 to communicate with other devices. Specifically, it can send information or data to other devices or receive information or data sent by other devices.

[0224] The transceiver 630 can include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas can be one or more.

[0225] Optionally, the communication device 600 can be the network device according to the embodiment of the present application, and the communication device 600 can implement the corresponding processes implemented by the network device in the various methods according to the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0226] Optionally, the communication device 600 can be the terminal device according to the embodiment of the present application, and the communication device 600 can implement the corresponding processes implemented by the terminal device in the various methods according to the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0227] Figure 12 FIG. 700 is a schematic structural diagram of a chip 700 according to an embodiment of the present application. The chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0228] Optionally, the chip 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiments of the present application.

[0229] The memory 720 may be a separate device independent of the processor 710 or may be integrated in the processor 710.

[0230] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips. Specifically, it may obtain information or data sent by other devices or chips.

[0231] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips. Specifically, it may output information or data to other devices or chips.

[0232] Optionally, the chip may be applied to the network device in the embodiments of the present application, and the chip may implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0233] Optionally, the chip may be applied to the terminal device in the embodiments of the present application as Figure 9 described in the embodiments, and the chip may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0234] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0235] The aforementioned processor may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the aforementioned general-purpose processor may be a microprocessor or any conventional processor, etc.

[0236] The memory mentioned above can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM).

[0237] It should be understood that the above-mentioned memory is an exemplary but not restrictive description. For example, the memory in the embodiments of the present application can also be a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous DRAM (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synch link DRAM (SLDRAM), and a Direct Rambus RAM (DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memories.

[0238] Figure 13 FIG. 800 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. The communication system 800 includes a terminal device 810 and a network device 820.

[0239] Among them, the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the methods of various embodiments of the present application, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the methods of various embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0240] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)).

[0241] It should be understood that in various embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not imply the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein again.

[0242] The above description is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for transmitting a control channel, characterized in that, Applied to a terminal device, the method includes: Determine a first set of control resources, where the first set of control resources corresponds to a first subcarrier spacing, and the first set of control resources includes N symb symbols in the time domain, N symb is a positive integer, and the first subcarrier spacing is greater than 60 kHz; Detect a first control channel candidate in the first control resource set, where the first control channel includes at least one control channel element (CCE). One CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, where S is a positive integer. Among them, One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers, M×N = 12, M > 1 and M < 12, and N = N symb .

2. The method according to claim 1, characterized in that, One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain. The numbering of the REGs in the first control resource set starts from 0 in a time-first and frequency-second manner starting from the symbol with the smallest number and the subcarrier with the smaller number in the first resource block (RB).

3. The method according to any one of claims 1 to 2, characterized in that, One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain. The REG in the first control resource set does not include a demodulation reference signal (DMRS).

4. The method according to any one of claims 1 to 3, characterized in that One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain. Among them, the M subcarriers are M consecutive subcarriers, or the M subcarriers are M consecutive subcarriers without considering DMRS.

5. The method according to claim 1, wherein The first subcarrier spacing includes at least one of the following subcarrier spacings: 120 kHz, 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, 3.84 MHz.

6. The method according to any one of claims 1 to 5, characterized in that If N symb is greater than a first preset value or the maximum configuration value corresponding to N symb is greater than the first preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or, If N symb is less than or equal to the first preset value, or N symb the corresponding maximum configuration value is less than or equal to the first preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain.

7. The method according to any one of claims 1 to 5, characterized in that If the first subcarrier spacing is greater than a second preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or, If the first subcarrier spacing is less than or equal to the second preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and one resource block (RB) corresponding to the symbol in the frequency domain.

8. The method according to any one of claims 1 to 7, characterized in that, The S REGs include S / L REG bundles, where one REG bundle includes L REGs. The REG numbers included in the i-th REG bundle are {iL, iL + 1, …, iL + L - 1}, where i = 0, 1, …, N REG / L - 1, N REG represent the number of REGs included in the first control resource set, and L and N REG are both positive integers.

9. The method according to claim 8, characterized in that, One CCE in the first control resource set includes S resource unit groups (REGs) in the first control resource set. The mapping relationship between the CCE and the S REGs includes: The REG bundle numbers included in the jth CCE are {f(jS / L), f(jS / L + 1), …, f(jS / L + S / L - 1)}, where f(.) represents an interleaver.

10. The method according to claim 9, characterized in that S, N symb Satisfies at least one of the following relationships with L: When N symb is greater than or equal to 6, the value of L is 6; L = S.

11. The method according to claim 9 or 10, characterized in that, The interleaver f(.) includes: f(x) = (pC + q + n shift ) mod (N REG / L) x = qR + p p = 0, 1, …, R - 1 q = 0, 1, …, C - 1 C=N REG / (LR) where n shift is preset or configured by the network device; L is preset or configured by a network device; R is preset or configured by a network device.

12. The method according to claim 9, wherein L = S, the interleaver f(.) includes: f(x) = x.

13. The method according to any one of claims 1 to 12, characterized in that, N symb The corresponding maximum configuration value is greater than 3.

14. The method according to any one of claims 1 to 13, characterized in that, If the first subcarrier spacing is greater than or equal to a third preset value, N symb The corresponding minimum configuration value is greater than 1.

15. The method according to any one of claims 1 to 13, characterized in that N symb The configuration range includes at least one of the following: {1、2、3、4、5、6、7、8、9、10、11、12}； {1、2、3、4、6、12}； {1、2、3、6、12}； {1、2、3、4、6}； {1、2、3、6}。 16. The method according to any one of claims 1 to 15, characterized in that, The method further includes: determining a second control resource set corresponding to a second subcarrier spacing, where the configured range of the number of symbols included in the second control resource set in the time domain is different from the configured range of the number of symbols included in the first control resource set in the time domain; or the maximum configured value of the number of symbols included in the second control resource set in the time domain is different from the maximum configured value of the number of symbols included in the first control resource set in the time domain.

17. The method according to any one of claims 1 to 16, characterized in that, The determining of the first control resource set includes: determining the first control resource set according to first configuration information sent by a network device.

18. A transmission method for a control channel, characterized in that, Applied to a network device, the method includes: Send first configuration information to a terminal device, where the first configuration information is used to determine a first control resource set corresponding to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, N symb is a positive integer, and the first subcarrier spacing is greater than 60 kHz; sending a first control channel in the first control resource set, where the first control channel includes at least one control channel element (CCE), and one CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, and S is a positive integer, where One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain, and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers, M×N = 12, M is greater than 1 and less than 12, and N = N symb .

19. The method according to claim 18, wherein one REG in the first control resource set includes N consecutive symbols in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain. The numbering of the REGs in the first control resource set starts from 0 in a time-first and frequency-second manner starting from the first symbol and the subcarrier with the smaller number in the resource block (RB) with the smallest number in the first control resource set.

20. The method according to any one of claims 18 to 19, characterized in that, one REG in the first control resource set includes N consecutive symbols in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the REG in the first control resource set does not include a demodulation reference signal (DMRS).

21. The method according to any one of claims 18 to 20, characterized in that, one REG in the first control resource set includes N consecutive symbols in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the M subcarriers are consecutive M subcarriers, or the M subcarriers are consecutive M subcarriers without considering the DMRS.

22. The method according to claim 18, wherein The first subcarrier spacing includes at least one of the following subcarrier spacings: 120 kHz, 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, 3.84 MHz.

23. The method according to any one of claims 18 to 22, characterized in that, If N symb is greater than a first preset value or the maximum configuration value corresponding to N symb is greater than the first preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or If N symb is less than or equal to the first preset value, or N symb the corresponding maximum configuration value is less than or equal to the first preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain.

24. The method according to any one of claims 18 to 22, characterized in that, if the first subcarrier spacing is greater than a second preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or if the first subcarrier spacing is less than or equal to the second preset value, one REG in the first control resource set includes one symbol in the first control resource set and includes one resource block (RB) corresponding to the symbol in the first control resource set in the frequency domain.

25. The method according to any one of claims 18 to 24, characterized in that, The S REGs include S / L REG bundles, where one REG bundle includes L REGs, and the REG numbers included in the i-th REG bundle are {iL, iL + 1, …, iL + L - 1}, i = 0, 1, …, N REG / L - 1, N REG represent the number of REGs included in the first control resource set, and L and N REG are both positive integers.

26. The method according to claim 25, wherein One CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, and the mapping relationship between the CCE and the S REGs includes: The REG bundle numbers included in the j-th CCE are {f(jS / L), f(jS / L + 1), …, f(jS / L + S / L - 1)}, where f(.) represents an interleaver.

27. The method according to claim 26, wherein S, N symb S and L satisfy at least one of the following relationships: When N symb is greater than or equal to 6, the value of L is 6; L = S.

28. The method according to claim 26 or 27, characterized in that The interleaver f(.) includes: f(x) = (pC + q + n shift ) mod (N REG / L) x = qR + p p = 0, 1, …, R - 1 q = 0, 1, …, C - 1 C=N REG / (LR) where n shift is preset or configured by the network device; L is preset or configured by a network device; R is preset or configured by a network device.

29. The method according to claim 26, wherein L = S, and the interleaver f(.) includes: f(x) = x.

30. The method according to any one of claims 18 to 29, characterized in that, N symb The corresponding maximum configuration value is greater than 3.

31. The method according to any one of claims 18 to 30, characterized in that, If the first subcarrier spacing is greater than or equal to a third preset value, N symb The corresponding minimum configuration value is greater than 1.

32. The method according to any one of claims 18 to 30, characterized in that, N symb The configuration range includes at least one of the following: {1、2、3、4、5、6、7、8、9、10、11、12}； {1、2、3、4、6、12}； {1、2、3、6、12}； {1、2、3、4、6}； {1、2、3、6}。 33. The method according to any one of claims 18 to 32, characterized in that, The method further includes: Sending second configuration information to the terminal device, where the second configuration information is used to determine a second control resource set, and the second control resource set corresponds to a second subcarrier spacing, where The configured range of the number of symbols included in the second control resource set in the time domain is different from the configured range of the number of symbols included in the first control resource set in the time domain; or, The maximum configured value of the number of symbols included in the second control resource set in the time domain is different from the maximum configured value of the number of symbols included in the first control resource set in the time domain.

34. A terminal device, characterized in that, It includes: A determination module, configured to determine a first control resource set corresponding to a first subcarrier spacing, where the first control resource set includes N symbols in the time domain, N is a positive integer, and the first subcarrier spacing is greater than 60 kHz; symb symbols, N symb being a positive integer, and the first subcarrier spacing being greater than 60 kHz; A detection module, configured to detect a first control channel candidate in the first control resource set, where the first control channel includes at least one control channel element (CCE), and one CCE in the first control resource set includes S resource element groups (REGs) in the first control resource set, and S is a positive integer; where One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers, M×N = 12, M is greater than 1 and less than 12, and N = N symb .

35. The terminal device according to claim 34, characterized in that, One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain. The numbering of the REGs in the first control resource set starts from 0 in a time-first and frequency-second manner starting from the first symbol and the subcarrier with the smaller number in the resource block (RB) with the smallest number in the first control resource set.

36. The terminal device according to any one of claims 34 to 35, characterized in that, One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, and the REG in the first control resource set does not include a demodulation reference signal (DMRS).

37. The terminal device according to any one of claims 34 to 36, characterized in that, One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the M subcarriers are consecutive M subcarriers, Or, the M subcarriers are consecutive M subcarriers without considering DMRS.

38. The terminal device according to claim 34, wherein The first subcarrier spacing includes at least one of the following subcarrier spacings: 120 kHz, 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, 3.84 MHz.

39. The terminal device according to any one of claims 34 to 38, characterized in that, If N symb is greater than a first preset value or the maximum configuration value corresponding to N symb is greater than the first preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or, If N symb is less than or equal to the first preset value, or N symb the corresponding maximum configuration value is less than or equal to the first preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain.

40. The terminal device according to any one of claims 34 to 38, characterized in that If the first subcarrier spacing is greater than a second preset value, one REG in the first control resource set includes N consecutive symbols in the time domain in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the frequency domain in the first control resource set; Or, If the first subcarrier spacing is less than or equal to the second preset value, one REG in the first control resource set includes one symbol in the time domain in the first control resource set, and includes one resource block RB corresponding to the symbol in the frequency domain in the first control resource set.

41. The terminal device according to any one of claims 34 to 40, characterized in that The S REGs include S / L REG bundles, where one REG bundle includes L REGs, and the REG numbers included in the i-th REG bundle are {iL, iL + 1, …, iL + L - 1}, i = 0, 1, …, N REG / L - 1, N REG represent the number of REGs included in the first control resource set, and L and N REG are all positive integers.

42. The terminal device according to claim 41, wherein One CCE in the first control resource set includes S resource element groups REG in the first control resource set, and the mapping relationship between the CCE and the S REGs includes: The REG bundle numbers included in the jth CCE are {f(jS / L), f(jS / L + 1), …, f(jS / L + S / L - 1)}, where f(.) represents an interleaver.

43. The terminal device according to claim 42, characterized in that, S, N symb S and L satisfy at least one of the following relationships: When N symb is greater than or equal to 6, the value of L is 6; L = S.

44. The terminal device according to claim 42 or 43, characterized in that, The interleaver f(.) includes: f(x) = (pC + q + n shift ) mod (N REG / L) x = qR + p p = 0, 1, …, R - 1 q = 0, 1, …, C - 1 C=N REG / (LR) where n shift is preset or configured by a network device; L is preset or configured by a network device; R is preset or configured by a network device.

45. The terminal device according to claim 42, characterized in that, L = S, and the interleaver f(.) includes: f(x) = x.

46. The terminal device according to any one of claims 34 to 45, characterized in that, N symb The corresponding maximum configuration value is greater than 3.

47. The terminal device according to any one of claims 34 to 46, characterized in that, If the first subcarrier spacing is greater than or equal to a third preset value, N symb The corresponding minimum configuration value is greater than 1.

48. The terminal device according to any one of claims 34 to 46, characterized in that N symb The configuration range includes at least one of the following: {1、2、3、4、5、6、7、8、9、10、11、12}； {1、2、3、4、6、12}； {1、2、3、6、12}； {1、2、3、4、6}； {1、2、3、6}。 49. The terminal device according to any one of claims 34 to 48, characterized in that, The terminal device further includes: Determining a second control resource set, where the second control resource set corresponds to a second subcarrier spacing, and where The configured range of the number of symbols included in the second control resource set in the time domain is different from the configured range of the number of symbols included in the first control resource set in the time domain; or, The maximum configured value of the number of symbols included in the second control resource set in the time domain is different from the maximum configured value of the number of symbols included in the first control resource set in the time domain.

50. The terminal device according to any one of claims 34 to 49, characterized in that, The determining the first control resource set includes: Determining the first control resource set according to first configuration information sent by a network device.

51. A network device, characterized in that, It includes: A first sending module, configured to send first configuration information to a terminal device, where the first configuration information is used to determine a first control resource set, the first control resource set corresponding to a first subcarrier spacing, and the first control resource set includes N symb symbols in the time domain, N symb being a positive integer, and the first subcarrier spacing being greater than 60 kHz; A second sending module, configured to send a first control channel candidate in the first control resource set, where the first control channel includes at least one control channel element CCE, and where one CCE in the first control resource set includes S resource element groups REG in the first control resource set, S being a positive integer, and where One REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where N and M are both positive integers, M×N = 12, M is greater than 1 and less than 12, and N = N symb .

52. The network device according to claim 51, wherein, One REG in the first control resource set includes N consecutive symbols in the time domain in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the frequency domain in the first control resource set, and where the REG number in the first control resource set starts from 0 in a time-first and frequency-second manner starting from the first symbol and the subcarrier with the smaller number in the RB with the smallest number in the first control resource set.

53. The network device according to any one of claims 51 to 52, characterized in that, One REG in the first control resource set includes N consecutive symbols in the time domain in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the frequency domain in the first control resource set, and where the REG in the first control resource set does not include a demodulation reference signal DMRS.

54. The network device according to any one of claims 51 to 53, characterized in that, One REG in the first control resource set includes N consecutive symbols in the time domain in the first control resource set, and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain, where the M subcarriers are consecutive M subcarriers, or the M subcarriers are consecutive M subcarriers without considering DMRS.

55. The network device according to claim 51, wherein, The first subcarrier spacing includes at least one of the following subcarrier spacings: 120 kHz, 240 kHz, 480 kHz, 960 kHz, 1.92 MHz, 3.84 MHz.

56. The network device according to any one of claims 51 to 55, characterized in that, If N symb is greater than a first preset value or the maximum configuration value corresponding to N symb is greater than the first preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or If N symb is less than or equal to the first preset value, or N symb the corresponding maximum configuration value is less than or equal to the first preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain.

57. The network device according to any one of claims 51 to 55, characterized in that If the first subcarrier spacing is greater than a second preset value, one REG in the first control resource set includes N consecutive symbols in the first control resource set in the time domain, and includes M subcarriers corresponding to the N consecutive symbols in the first control resource set in the frequency domain; Or If the first subcarrier spacing is less than or equal to the second preset value, one REG in the first control resource set includes one symbol in the first control resource set in the time domain, and includes one resource block RB corresponding to the symbol in the first control resource set in the frequency domain.

58. The network device according to any one of claims 51 to 57, characterized in that, The S REGs include S / L REG bundles, where one REG bundle includes L REGs. The REG numbers included in the i-th REG bundle are {iL, iL + 1, …, iL + L - 1}, where i = 0, 1, …, N REG / L - 1, N REG represent the number of REGs included in the first control resource set, and L and N REG are all positive integers.

59. The network device according to claim 58, characterized in that, One CCE in the first control resource set includes S resource element groups REG in the first control resource set, and the mapping relationship between the CCE and the S REGs includes: The REG bundle numbers included in the j-th CCE are {f(jS / L), f(jS / L + 1), …, f(jS / L + S / L - 1)}, where f(.) represents an interleaver.

60. The network device according to claim 59, wherein S, N symb S and L satisfy at least one of the following relationships: When N symb is greater than or equal to 6, the value of L is 6; L = S.

61. The network device according to claim 59 or 60, characterized in that, The interleaver f(.) includes: f(x) = (pC + q + n shift ) mod (N REG / L) x = qR + p p = 0, 1, …, R - 1 q = 0, 1, …, C - 1 C=N REG / (LR) where n shift is preset or configured by the network device; L is preset or configured by a network device; R is preset or configured by a network device.

62. The network device according to claim 61, wherein L = S, and the interleaver f(.) includes: f(x) = x.

63. The network device according to any one of claims 51 to 62, characterized in that, N symb The corresponding maximum configuration value is greater than 3.

64. The network device according to any one of claims 51 to 63, characterized in that, If the first subcarrier spacing is greater than or equal to a third preset value, N symb The corresponding minimum configuration value is greater than 1.

65. The network device according to any one of claims 51 to 63, characterized in that, N symb The configuration range includes at least one of the following: {1、2、3、4、5、6、7、8、9、10、11、12}； {1、2、3、4、6、12}； {1、2、3、6、12}； {1、2、3、4、6}； {1、2、3、6}。 66. The network device according to any one of claims 51 to 65, characterized in that The network device further includes: Sending second configuration information to the terminal device, where the second configuration information is used to determine a second control resource set, and the second control resource set corresponds to a second subcarrier spacing, where The configured range of the number of symbols included in the second control resource set in the time domain is different from the configured range of the number of symbols included in the first control resource set in the time domain; or The maximum configured value of the number of symbols included in the second control resource set in the time domain is different from the maximum configured value of the number of symbols included in the first control resource set in the time domain.

67. A terminal device, comprising: A processor and a memory, where the memory is used to store a computer program, and the processor calls and runs the computer program stored in the memory to execute the method according to any one of claims 1 to 17.

68. A network device, comprising: A processor and a memory, where the memory is used to store a computer program, and the processor calls and runs the computer program stored in the memory to execute the method according to any one of claims 18 to 33.

69. A chip, comprising: A processor for calling and running a computer program from a memory, such that a device installed with the chip performs the method according to any one of claims 1 to 33.

70. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to perform the method according to any one of claims 1 to 33.

71. A computer program product comprising computer program instructions, wherein the computer program instructions cause a computer to perform the method according to any one of claims 1 to 33.

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