CN108811098B

CN108811098B - Method for determining time slot format, terminal equipment and network equipment

Info

Publication number: CN108811098B
Application number: CN201710301535.6A
Authority: CN
Inventors: 夏金环; 冯淑兰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-05-02
Filing date: 2017-05-02
Publication date: 2021-05-04
Anticipated expiration: 2037-05-02
Also published as: CN108811098A; WO2018202012A1

Abstract

The application provides a method for determining a time slot format, a terminal device and a network device. The method comprises the following steps: determining a time slot format corresponding to a reference sub-band in a plurality of sub-bands; and determining a time slot format corresponding to a target sub-band in the plurality of sub-bands according to the time slot format corresponding to the reference sub-band, wherein the type of the subcarrier interval in the target sub-band is different from that in the reference sub-band. The terminal equipment of the embodiment of the application can simultaneously transmit different services, and the transmission efficiency is improved.

Description

Method for determining time slot format, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and more particularly, to a method, a terminal device, and a network device for determining a slot format.

Background

5th generation communication base station (5)^thgeneration Node Base, 5G) New Radio (NR) standard supports multiple types of subcarrier spacing, e.g., 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, 480kHz, etc. In a system based on Orthogonal Frequency Division Multiplexing (OFDM), the subcarrier spacing in a certain subband is inversely proportional to the length of an OFDM symbol corresponding to the subband, i.e., the larger the subcarrier spacing, the shorter the length of the OFDM symbol.

In addition, different types of subcarrier spacing can be used for transmitting different services. Therefore, the base station can realize transmission of different services by adjusting the slot format of the slot (slot). Taking an example where a slot includes 7 OFDM symbols, the slot format may be that 7 OFDM symbols are all used for downlink transmission (only DL), or all used for uplink transmission (only UL), or most symbols are used for uplink transmission (UL centre), or most symbols are used for downlink transmission (DL centre).

In a conventional scheme, a terminal device receives indication information sent by a base station at a starting time of a time slot corresponding to a certain sub-band, and determines a time slot format of a corresponding time slot according to the indication information to transmit a corresponding service. That is to say, in the conventional scheme, the terminal device only supports the type of the same subcarrier interval on a certain time domain resource, that is, only transmits one type of service corresponding to one timeslot format. However, the current terminal device and the base station can support different types with different subcarrier spacings in different frequency ranges, and therefore a method for determining the slot format in such a scenario is urgently needed to be proposed.

Disclosure of Invention

The application provides a method for determining a time slot format, a terminal device and a network device, which can simultaneously transmit different services and improve transmission efficiency.

In a first aspect, a method for determining a slot format is provided, the method includes determining a slot format corresponding to a reference subband in a plurality of subbands; and determining a time slot format corresponding to a target sub-band in the plurality of sub-bands according to the time slot format corresponding to the reference sub-band, wherein the type of the subcarrier interval in the target sub-band is different from that in the reference sub-band.

The terminal equipment determines a time slot format corresponding to a reference sub-band in a plurality of sub-bands, and determines a time slot format corresponding to a target sub-band in the plurality of sub-bands according to the time slot format corresponding to the reference sub-band, wherein the type of the sub-carrier interval in the target sub-band is different from that in the reference sub-band, so that the terminal equipment can simultaneously transmit different services, and the transmission efficiency is improved.

In one possible design, the method further includes: receiving first indication information, wherein the first indication information is used for indicating a time slot format corresponding to the reference sub-band; wherein the determining the slot format corresponding to the reference subband comprises: and determining the time slot format corresponding to the reference sub-band according to the first indication information.

And the terminal equipment receives the first indication information and determines the time slot format corresponding to the reference sub-band according to the first indication information, so that the terminal equipment can dynamically switch the time slot format corresponding to the reference sub-band, and the transmission service can be dynamically adjusted.

In another possible design, the receiving the first indication information includes: within the reference sub-band, the first indication information is received.

The terminal equipment receives the first indication information in the reference sub-band, so that the first indication information is prevented from being detected in all the sub-bands, and the power consumption of the terminal equipment is reduced.

In another possible design, the receiving the first indication information includes: and receiving the first indication information in each of a plurality of time slots corresponding to the target sub-band.

The terminal equipment receives the first indication information in each time slot of the plurality of time slots corresponding to the target sub-band, so that the accuracy of the first indication information received by the terminal equipment is improved.

In another possible design, the receiving the first indication information includes: and receiving the first indication information in a first time slot of a plurality of time slots corresponding to the target sub-band.

The first time slot may be any one of the plurality of time slots, or may be a first time slot of the plurality of time slots. The terminal equipment receives the first indication information in the first time slot, so that the power consumption of the terminal equipment is saved.

In another possible design, the first indication information is carried with downlink control information or is mapped into a downlink control channel region.

In another possible design, the target subband and the reference subband belong to the same system bandwidth.

In another possible design, the target subband and the reference subband belong to different system bandwidths.

In another possible design, if the spacing of the subcarriers in the reference subband is smaller than the spacing of the subcarriers in the target subband, the determining, according to the slot format corresponding to the reference subband, the slot format corresponding to the target subband in the plurality of subbands includes: determining a first symbol corresponding to the reference subband according to a slot format corresponding to the reference subband, wherein the first symbol is used as a first protection interval and comprises at least two second symbols corresponding to the target subband in a time domain; determining at least one of the at least two second symbols as a second guard interval; and determining the time slot format corresponding to the target sub-band according to the second guard interval.

The terminal equipment determines a first symbol corresponding to a reference sub-band according to a time slot format corresponding to the reference sub-band, the first symbol comprises at least two second symbols in a time domain, and at least one second symbol in the at least two second symbols is determined as a second guard interval, so that uplink and downlink transmission can be simultaneously carried out in one time slot through the second guard interval, and in addition, the interference between the reference sub-band and a target sub-band can be avoided.

In another possible design, if the spacing of the subcarriers in the reference subband is greater than the spacing of the subcarriers in the target subband, the determining, according to the slot format corresponding to the reference subband, the slot format corresponding to the target subband in the plurality of subbands includes: determining the usage of all first symbols contained in a second symbol in a time domain according to a slot format corresponding to the reference subband, wherein the first symbol is a symbol corresponding to the reference subband, the second symbol is any symbol corresponding to the target subband, and the usage of the first symbol is used for uplink transmission, downlink transmission or as a guard interval; determining the purpose of the second symbol according to the purposes of all first symbols contained in the second symbol in the time domain; and determining the time slot format corresponding to the target sub-band according to the purpose of the second symbol.

The terminal device determines the usage of all first symbols contained in the second symbol in the time domain according to the slot format corresponding to the reference subband, determines the usage of the second symbol according to the usage of all first symbols contained in the second symbol in the time domain, and determines the slot format corresponding to the target subband according to the usage of the second symbol, so that the slot format of the subband where the smaller subcarrier interval is located can be flexibly configured by taking the subband where the smaller subcarrier interval is located as the reference subband.

In another possible design, the determining the usage of the second symbol based on the usage of all first symbols included in the second symbol in the time domain includes: if the usage of all the first symbols includes uplink transmission and downlink transmission, the usage of the second symbols is invalid; if the usage of all the first symbols includes usage for uplink transmission and usage as a guard interval, the usage of the second symbols is usage as a guard interval; if the purpose of all the first symbols includes use for downlink transmission and use as a guard interval, the purpose of the second symbols is use as a guard interval.

The usage of the second symbol is determined according to the usage of all the first symbols contained in the second symbol in the time domain, and the interference between the reference subband and the target subband is avoided.

In another possible design, the determining, according to the slot format corresponding to the reference subband, the slot format corresponding to a target subband in the plurality of subbands includes: and determining the time slot format corresponding to the target sub-band according to the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band.

The terminal device and the network device can preset the corresponding relationship between the time slot format corresponding to the reference sub-band and the time slot format corresponding to the target sub-band, so that the terminal device can determine the time slot format corresponding to the target sub-band after knowing the time slot format corresponding to the reference sub-band, thereby avoiding self-interference and saving system power consumption.

In another possible design, when the reference sub-band and the target sub-band belong to the same system bandwidth, if the slot format corresponding to the reference sub-band is that all the reference sub-bands are used for uplink transmission or all the reference sub-bands are used for downlink transmission in a certain time slot, the terminal device and the network device may preset that the slot format corresponding to the target sub-band is the same as the slot format corresponding to the reference sub-band, so that self-interference can be avoided.

In another possible design, when the reference sub-band and the target sub-band belong to different system bandwidths, if the slot format corresponding to the reference sub-band is that all of the reference sub-band is used for uplink transmission in a certain slot, the terminal device and the network device may preset the slot format corresponding to the target sub-band in the slot included in the slot to be all used for uplink transmission or all used for downlink transmission. If the time slot format corresponding to the reference sub-band is that all the time slots are used for downlink transmission, the terminal device and the network device may preset the time slot format corresponding to the target sub-band in the time slot included in the time slot to be all used for uplink transmission or all used for downlink transmission, so as to avoid generating self-interference.

In another possible design, before determining the slot format corresponding to the target subband according to the correspondence between the slot format corresponding to the target subband and the slot format corresponding to the reference subband, the method further includes: receiving second indication information, wherein the second indication information is used for indicating the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band; and determining the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band according to the second indication information.

The terminal device can obtain the corresponding relationship between the time slot format corresponding to the target sub-band configured by the network device and the time slot format corresponding to the reference sub-band according to the received second indication information, so that the transmission service can be dynamically adjusted.

In another possible design, before determining the slot format corresponding to the reference subband, the method further includes: sending capability information to the network equipment, wherein the capability information is used for indicating the type of at least one subcarrier interval supported by the terminal equipment; receiving third indication information, where the third indication information is used to indicate the reference subband, and the type of the subcarrier spacing of the reference subband is one of the types of the subcarrier spacing supported by both the terminal device and the network device; and determining the reference sub-band according to the third indication information.

The reference subband is a type of subcarrier interval that both the terminal device and the network device can support, so that normal transmission of the service can be ensured.

In another possible design, the method further includes: and receiving fourth indication information, wherein the fourth indication information is used for indicating the effective duration of the time slot format corresponding to the target subband.

The terminal equipment does not need to detect the first indication information all the time within the effective duration, so that the power consumption of the terminal equipment is saved.

In a second aspect, a method for determining a slot format is provided, the method comprising: determining a time slot format corresponding to a reference sub-band in a plurality of sub-bands; and sending first indication information to a terminal device, wherein the first indication information is used for indicating a time slot format corresponding to the reference subband, and the first indication information is also used for indicating the terminal device to determine a time slot format corresponding to a target subband in the multiple subbands according to the time slot format corresponding to the reference subband, and the type of the subcarrier interval in the target subband is different from the type of the subcarrier interval in the reference subband.

The network device determines a time slot format corresponding to the reference sub-band and sends the first indication information to the terminal device, so that the terminal device determines the time slot format corresponding to the reference sub-band according to the first indication information, and thus, the network device can dynamically configure the time slot format corresponding to the reference sub-band, and can dynamically adjust transmission services. In addition, the network equipment can transmit different services simultaneously, so that the transmission efficiency is improved.

In one possible design, the sending the first indication information to the terminal device includes: and transmitting the first indication information in the reference sub-band.

The network equipment sends the first indication information to the terminal equipment in the reference sub-band, so that the first indication information is prevented from being sent in all the sub-bands, and the power consumption of the network equipment is reduced.

In another possible design, the sending the first indication information to the terminal device includes: and transmitting the first indication information in each of a plurality of time slots corresponding to each of the plurality of sub-bands.

The network equipment sends the first indication information in each time slot of a plurality of time slots corresponding to the target sub-band, so that the terminal equipment can accurately receive the first indication information, and the accuracy of receiving the first indication information by the terminal equipment is improved.

In another possible design, the sending the first indication information to the terminal device includes: and transmitting the first indication information in a first time slot of a plurality of time slots corresponding to each sub-band in the plurality of sub-bands.

The first time slot may be any one of the plurality of time slots, or may be a first time slot of the plurality of time slots. The network device transmits the first indication information in the first time slot, thereby saving the power consumption of the network device.

In another possible design, the method further includes: and sending second indication information, wherein the second indication information is used for indicating the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band.

The network device can flexibly configure the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band, thereby dynamically adjusting the transmission service.

In another possible design, the method further includes: receiving capability information sent by the terminal equipment, wherein the capability information is used for indicating the type of subcarrier intervals supported by the terminal equipment; and sending third indication information to the terminal device, where the third indication information is used to indicate the reference subband, and the type of the subcarrier spacing of the reference subband is one of the types of the subcarrier spacing supported by both the terminal device and the network device.

The network device selects the type of the subcarrier interval which can be supported by both the terminal device and the network device, thereby ensuring the normal transmission of the service.

In another possible design, the method further includes: and sending fourth indication information, wherein the fourth indication information is used for indicating the effective duration of the time slot format corresponding to the target sub-band.

The network equipment sends the fourth indication information to the terminal equipment, so that the terminal equipment does not need to detect the first indication information all the time within the effective duration, and the power consumption of the terminal equipment is saved.

In a third aspect, a terminal device is provided, which includes means for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a network device comprising means to perform the method of the second aspect or any possible implementation manner of the second aspect.

In a fifth aspect, a system is provided, the system comprising:

the terminal device of the above third aspect and the network device of the above fourth aspect.

In a sixth aspect, a terminal device is provided that includes a processor, a memory, and a communication interface. The processor is coupled to the memory and the communication interface. The memory is for storing instructions, the processor is for executing the instructions, and the communication interface is for communicating with other network elements under control of the processor. The processor, when executing the instructions stored by the memory, causes the processor to perform the method of the first aspect or any possible implementation of the first aspect.

In a seventh aspect, a network device is provided, including: a processor, a memory, and a communication interface. The processor is coupled to the memory and the communication interface. The memory is for storing instructions, the processor is for executing the instructions, and the communication interface is for communicating with other network elements under control of the processor. The processor, when executing the instructions stored by the memory, causes the processor to perform the second aspect or the method of any possible implementation of the second aspect.

In an eighth aspect, a computer storage medium is provided, in which program code is stored, the program code being used for instructing the execution of the instructions of the method in the first aspect or any one of the possible implementation manners of the first aspect.

In a ninth aspect, there is provided a computer storage medium having program code stored therein for instructing execution of instructions of the method of the second aspect or any of the possible implementations of the second aspect.

Based on the technical scheme, the terminal equipment determines the time slot format corresponding to the reference sub-band and determines the time slot format corresponding to the target sub-band according to the time slot format corresponding to the reference sub-band, and the type of the subcarrier interval in the target sub-band is different from that in the reference sub-band, so that the terminal equipment can transmit different services simultaneously, and the transmission efficiency is improved.

Drawings

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

FIG. 2 is a diagram illustrating the correspondence between different subcarrier spacings and OFDM symbols;

FIG. 3 is a schematic diagram of a slot format;

FIG. 4 is a schematic flow chart diagram of a method of determining a slot format in an embodiment of the present application;

FIG. 5 is a diagram illustrating a method for determining a slot format according to an embodiment of the present application;

FIG. 6 is a diagram illustrating a method for determining a slot format according to another embodiment of the present application;

fig. 7 is a schematic block diagram of a terminal device of an embodiment of the present application;

fig. 8 is a schematic configuration diagram of a terminal device of the embodiment of the present application;

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

fig. 10 is a schematic configuration diagram of a network device of the embodiment of the present application;

FIG. 11 is a schematic block diagram of a system of an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

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

In particular, the technical solution of the embodiment of the present application may be applied to various communication systems based on a non-orthogonal Multiple Access technology, such as a Sparse Code Multiple Access (SCMA) system, a Low Density Signature (LDS) system, and the like, and certainly the SCMA system and the LDS system may also be called other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a Multi-Carrier transmission system using a non-Orthogonal multiple access technology, for example, an Orthogonal Frequency Division Multiplexing (OFDM) using a non-Orthogonal multiple access technology, a Filter Bank Multi-Carrier (FBMC), a General Frequency Division Multiplexing (GFDM), a Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) system, and the like.

A terminal device in the embodiments of the present application may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, and the embodiments of the present application are not limited thereto.

The Network device in this embodiment may be a device for communicating with a terminal device, where the Network device may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in a WCDMA system, an evolved node b (eNB or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, or a Network device in a future evolved PLMN Network, and the like, and the embodiment of the present application is not limited.

Fig. 1 is a schematic diagram of an application scenario of the present application. The communication system in fig. 1 may include at least one terminal device 10 and a network device 20. The network device 20 is configured to provide a communication service for each terminal device 10 and access the core network, for example, the network device 20 may be configured to transmit configuration information, a downlink control channel and a data channel to each terminal device 10, and receive an uplink data channel and an uplink control channel transmitted by each terminal device 10. Each terminal device 10 accesses the network by searching for a synchronization signal, a broadcast signal, or the like transmitted by the network device 20 to thereby perform communication with the network, and for example, each terminal device 10 receives configuration information, downlink control information, and a data channel transmitted by the network device 20 and transmits an uplink data channel and an uplink control channel to the network device 20. The arrows shown in fig. 1 may represent uplink/downlink transmissions over a cellular link between the terminal device 10 and the network device 20.

In OFDM-based systems, the subcarrier spacing is inversely proportional to the length of the OFDM symbol, i.e., the larger the subcarrier spacing, the shorter the OFDM symbol length. Fig. 2 is a schematic diagram illustrating correspondence between different subcarrier spacings and OFDM symbols. As shown in fig. 2, the subcarrier spacings are 15kHz and 60kHz, respectively, in correspondence with OFDM symbols. Within the system bandwidth of a serving cell, different subcarrier spacing frequency division multiplexing can be set to meet the requirements of different services. For example, Evolved Mobile Broadband (eMBB) service operates in a frequency range with a subcarrier spacing of 15kHz, and Ultra Reliable Low Latency Communication (URLLC) service operates in a frequency range of 30kHz or 60 kHz. The device capabilities of the UE determine the type of subcarrier spacing that the UE is capable of supporting, e.g., a UE of a type that may have both eMBB and URLCC services can operate in both a 15kHz type of subcarrier spacing frequency range and a 30kHz or 60kHz type of subcarrier spacing frequency range.

As shown in fig. 2, the OFDM system transforms an OFDM symbol in a time domain into a corresponding subcarrier in a frequency domain using Fast Fourier Transform (FFT), and the subcarrier in the frequency domain is transformed into an OFDM symbol in the time domain through Inverse Fast Fourier Transform (IFFT) which is an Inverse FFT. In an OFDM-based system, the subcarrier spacing is inversely proportional to the length of the OFDM symbol, i.e. the time length of one OFDM symbol corresponding to a type of subcarrier spacing of 15kHz is 4 times the time length of one OFDM symbol corresponding to a type of subcarrier spacing of 60 kHz. In a serving cell, data Transmission is based on a Transmission Time Interval (TTI), i.e., one data Transmission, with a Time length of 1 TTI. Specifically, one TTI may be one subframe for 1ms, or 1 slot. The slot may be a relative unit, that is, only the number of OFDM symbols contained in the slot is defined. For example, as shown in fig. 2, one slot includes 7 OFDM symbols, and when the type of the subcarrier spacing is 15kHz, the absolute time length of one slot is 0.5ms, and when the type of the subcarrier spacing is 60kHz, the absolute time length of one slot is 0.125 ms.

The serving cell is capable of dynamically changing the format of the time slot in order to support dynamic service changes. Fig. 3 is a schematic diagram of a slot format. As shown in fig. 3, taking an example that one slot includes 7 OFDM symbols, the 7 OFDM symbols in one slot may all use downlink, or may all use uplink, and may use partial symbols as downlink, or partial symbols as uplink. The slot format change may be determined according to the traffic variation of the serving cell, for example, each slot is different.

Fig. 4 shows a schematic flow chart of a method of determining a slot format according to an embodiment of the present application.

401, the terminal device receives first indication information sent by the network device, and correspondingly, the network device sends the first indication information to the terminal device. The first indication information is used for indicating a slot format corresponding to a reference subband in the plurality of subbands.

Optionally, before receiving the first indication information, the terminal device may also report capability information to the network device, where the capability information is used to indicate a type of a subcarrier interval supported by the terminal device. The network device determines the type of the subcarrier interval commonly supported by the network device and the terminal device according to the received capability information and by combining the type of the subcarrier interval supported by the network device and the terminal device, and sends third indication information to the network device so as to inform the terminal device of the type of the reference subcarrier interval selected by the network device.

That is, the network device selects the type of subcarrier spacing that both the terminal device and the network device can support. If there are multiple types of subcarrier intervals that can be supported by both the terminal device and the network device, the network device may arbitrarily select one of the types of subcarrier intervals as a type of subcarrier interval for reference, or set a type of subcarrier interval for reference by different subband priority selection in advance, or the like. This is not limited in this application.

It should be understood that, in the embodiment of the present application, the types of the different subcarrier intervals may be that the frequency domain intervals between adjacent subcarriers in a certain subband are different.

Optionally, the third indication information may also indicate which frequency ranges support the type of the reference subcarrier spacing, so that the terminal device may quickly find the subband where the type of the reference subcarrier spacing is located, that is, the reference subband, thereby improving system efficiency.

It should be understood that what types of subcarrier spacings are supported in which frequency ranges may also be preset, and this is not limited in this application.

Optionally, the third indication Information may be specific to a serving cell in the network device, for example, carried in a Physical Broadcast Channel (PBCH) or System Information Block (SIB). Or the third indication information may be specific to the terminal device or specific to the terminal device group, for example, carried in Radio Resource Control (RRC) signaling.

It should be understood that the network device may support multiple serving cells simultaneously, and send corresponding third indication information for each serving cell, or one third indication information may indicate multiple serving cells, which is not limited in this application.

Optionally, the network device may not send the third indication information to the terminal device, and the terminal device and the network device may preset a type of the subcarrier interval that is commonly supported.

Optionally, the terminal device reports capability information to the network device, where the capability information may "explicitly" indicate the types of subcarrier intervals supported by the terminal device, for example, the capability information includes the types of subcarrier intervals supported by the terminal device. The capability information may also be an "implicit" type indicating the subcarrier intervals supported by the terminal device, for example, the reported capability information may include the types of services supported by the terminal device. Because different service types correspond to different types of subcarrier intervals, the network device can acquire the type of the subcarrier interval supported by the terminal device according to the service type supported by the terminal device. For example, eMMB traffic corresponds to a type of 15kHz subcarrier spacing, URLLC traffic corresponds to a type of 30kHz or 60kHz subcarrier spacing.

Optionally, the system may also set all terminal devices to support a type of subcarrier spacing by default, for example, 15kHz, so that the terminal device may not report the type of subcarrier spacing, but only report the type of subcarrier spacing additionally supported by the terminal device.

Optionally, when the terminal device does not receive the third indication information sent by the network device, the terminal device may determine the reference subband according to a preset type of the subcarrier spacing supported by the network device and a preset type of the subcarrier spacing supported by the terminal device.

Optionally, the terminal device may receive the first indication information within the reference sub-band. That is, the network device transmits the first indication information in the reference subband. That is, regardless of which sub-band (which may be referred to as a "target sub-band") the terminal device is prepared to receive data, the first indication information needs to be received on the reference sub-band.

It should be understood that the network device may transmit the first indication information in each of a plurality of time slots corresponding to the reference subband, or may transmit the first indication information in any one of a plurality of time slots corresponding to the reference subband. Or the terminal equipment receives the first indication information through a certain time slot preset in the reference sub-band with the network equipment.

Optionally, the network device sends the first indication information in each of a plurality of time slots corresponding to each of the plurality of sub-bands. Correspondingly, the terminal device may also receive the first indication information in each of the multiple time slots corresponding to the target subband, thereby improving the accuracy of the first indication information received by the terminal device.

Optionally, the terminal device may further receive the first indication information in a first time slot of the multiple time slots corresponding to the target subband, so as to save system power consumption. The first time slot may be any one of the plurality of time slots, or may be a first time slot of the plurality of time slots, which is not limited in this application.

Optionally, the first indication information may be carried in downlink control information or mapped to a downlink control channel region, which is not limited in this application.

Optionally, as an embodiment, the network device may send, to the terminal device, fifth indication information, where the fifth indication information is used to indicate whether a serving cell where the terminal device is located supports dynamically changing a slot format. And the terminal equipment determines whether the first indication information needs to be monitored or not according to the fifth indication information. And when determining that the serving cell in which the terminal equipment is positioned supports the dynamic change of the time slot format, the terminal equipment monitors and receives the first indication information.

And 402, the terminal equipment determines the time slot format corresponding to the reference sub-band according to the first indication information. The slot format corresponding to the reference sub-band may be any type of slot format in fig. 3.

Optionally, the terminal device may preset, with the network device, a slot format corresponding to the reference subband, so that the terminal device does not need to execute step 401, that is, the terminal device may directly determine the slot format corresponding to the reference subband.

And 403, the terminal device determines a time slot format corresponding to a target sub-band in the multiple sub-bands according to the time slot format corresponding to the reference sub-band, where the type of the subcarrier interval in the target sub-band is different from the type of the subcarrier interval in the reference sub-band.

When the terminal equipment supports different types with different subcarrier intervals in different frequency ranges, the terminal equipment can determine the time slot format corresponding to the target subband according to the time slot format corresponding to the reference subband, so that the terminal equipment can simultaneously transmit different services, and the transmission efficiency is improved. In addition, the terminal equipment can transmit different services simultaneously, so that resource waste can be avoided, and the resource utilization rate is improved.

It should be understood that each sub-band includes a plurality of sub-carriers, and the spacing of the sub-carriers is of a type that the sub-carriers are spaced apart in a certain sub-band, for example, the spacing of the sub-carriers supported in the 5G NR standard specification may be 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, 480kHz, etc., which is not limited in this application.

Optionally, the target subband and the reference subband may belong to the same system bandwidth or may belong to different system bandwidths, which is not limited in this application.

It should be noted that, when the target subband and the reference subband belong to different system bandwidths, the target subband may be one of a plurality of subbands included in the first system bandwidth, and the reference subband may be one of a plurality of subbands included in the second system bandwidth; or the target subband is one complete system bandwidth (e.g., a first system bandwidth) and the reference subband is another complete system bandwidth (e.g., a second system bandwidth), which is not limited in this application.

Optionally, the terminal device and the network device may preset a corresponding relationship between a time slot format corresponding to the reference subband and a time slot format corresponding to the target subband, so that the terminal device may determine the time slot format corresponding to the target subband after knowing the time slot format corresponding to the reference subband, thereby avoiding generating self-interference and saving system power consumption.

Optionally, when the reference sub-band and the target sub-band belong to the same system bandwidth, if the slot format corresponding to the reference sub-band is that all the reference sub-band is used for uplink transmission or all the reference sub-band is used for downlink transmission in a certain slot, the terminal device and the network device may preset that the slot format corresponding to the target sub-band is the same as the slot format corresponding to the reference sub-band.

Optionally, when the reference sub-band and the target sub-band belong to different system bandwidths, if the slot format corresponding to the reference sub-band is that all of the reference sub-band is used for uplink transmission in a certain slot, the terminal device and the network device may preset the slot format corresponding to the target sub-band in the slot included in the slot to be all used for uplink transmission or all used for downlink transmission. If the time slot format corresponding to the reference sub-band is that all of the time slots are used for downlink transmission, the terminal device and the network device may preset the time slot format corresponding to the target sub-band in the time slot included in the time slot to be all used for uplink transmission or all used for downlink transmission.

Optionally, the network device may flexibly configure the corresponding relationship between the time slot format corresponding to the target subband and the time slot format corresponding to the reference subband, and notify the terminal device through the second indication information, so that the terminal device may determine the corresponding relationship after receiving the second indication information, and may determine the time slot format corresponding to the target subband when determining the time slot format corresponding to the reference subband, thereby improving the flexibility of the network device in configuring the time slot format corresponding to the target subband.

Optionally, as an embodiment, if the interval of the sub-carrier in the reference sub-band is smaller than the interval of the sub-carrier in the target sub-band, the terminal device determines the timeslot format corresponding to the target sub-band according to the timeslot format corresponding to the reference sub-band, where the terminal device determines a first symbol used as a first protection interval according to the timeslot format corresponding to the reference sub-band, where the first symbol includes at least two second symbols corresponding to the target sub-band in a time domain, determines at least one second symbol of the at least two symbols as a second protection interval, and then determines the timeslot format corresponding to the target sub-band according to the second protection interval.

Specifically, if the reference subband and the target subband belong to the same system bandwidth, and the timeslot format corresponding to the reference subband is mostly used for uplink or mostly used for downlink, the symbol usage of the timeslot format corresponding to the target subband before the second guard interval is the same as the symbol usage of the reference subband before the first guard interval. If the reference sub-band and the target sub-band belong to different system bandwidths, and the time slot format corresponding to the reference sub-band is mostly used for uplink or mostly used for downlink, the symbol usage of the time slot format corresponding to the target sub-band before the second guard interval may be the same as or different from the symbol usage of the reference sub-band before the first guard interval.

It should be understood that the first symbol includes at least two second symbols corresponding to the target subband in the time domain, which may be understood as the number of second symbols that the first symbol can include at most in the time domain, and the first symbol is greater than or equal to the at least two second symbols in the time domain.

For example, taking fig. 5 as an example to explain, a subband where a subcarrier spacing is minimum 15kHz is used as a reference subband, a subband where a subcarrier spacing is 30kHz is used as a target subband, and a slot format corresponding to the reference subband is that a symbol before a first guard interval is used for downlink transmission and a symbol after the first guard interval is used for uplink transmission, where the reference subband and the target subband belong to the same system bandwidth. The terminal device determines a first symbol, that is, a special region "G" in fig. 5, according to a slot format corresponding to a reference subband, where the first symbol includes two second symbols in a time domain, and may use a first one of the two second symbols as a second guard interval, or use a second one of the two second symbols as a second guard interval, or use both the two symbols as the second guard interval, so that all symbols before the second guard interval are downlink transmission, and all symbols after the second guard interval are uplink transmission.

In addition, fig. 5 also shows an embodiment in which the subband with the smallest subcarrier spacing of 15kHz is used as the reference subband, and the subband with the subcarrier spacing of 60kHz, 120kHz or 240kHz is used as the target subband.

It should be understood that the reference sub-band may also be the sub-band where the sub-carrier spacing is 30kHz as shown in fig. 5, or the sub-carrier spacing is 60kHz, 120kHz, 240kHz, etc., which is not limited in this application.

It should also be appreciated that the guard interval is used for switching of the end device radio frequency channel.

Optionally, as an embodiment, if the interval of the sub-carrier in the reference sub-band is greater than the interval of the sub-carrier in the target sub-band, the terminal device determines, according to the slot format corresponding to the reference sub-band, the slot format corresponding to the target sub-band, and may first determine, according to the slot format corresponding to the reference sub-band, the usage of all first symbols included in the second symbol in the time domain, where the first symbol is a symbol corresponding to the reference sub-band, and then determine, according to the usage of all first symbols included in the second symbol in the time domain, the usage of the second symbol, and then determine, according to the usage of the second symbol, the slot format corresponding to the target sub-band. The first symbol is used for uplink transmission, downlink transmission or as a guard interval, and the second symbol is any one of the symbols in the time slot corresponding to the target subband.

Optionally, if the usage of all the first symbols included in the second symbol in the time domain includes usage for uplink transmission and usage for downlink transmission, the usage of the second symbol is invalid. If the usage of all the first symbols included in the second symbol in the time domain includes usage for uplink transmission and usage as a guard interval, the usage of the second symbol is usage as a guard interval. If the usage of all the first symbols included in the second symbol in the time domain includes usage for downlink transmission and usage as a guard interval, the usage of the second symbol is usage as a guard interval. If all the first symbols included in the second symbol in the time domain are used for uplink transmission, the second symbol is used for uplink transmission. If all the first symbols included in the second symbol in the time domain are used for downlink transmission, the second symbol is used for downlink transmission.

For example, taking fig. 6 as an example, a subband having a subcarrier spacing of 120kHz at the maximum is taken as a reference subband, and a subband having a subcarrier spacing of 30kHz is taken as a target subband. The first second symbol includes four first symbols in the time domain, the four first symbols are all used for downlink transmission, and the first second symbol is used for downlink transmission. The purpose of the four first symbols included in the second symbol is to be used as a guard interval and uplink transmission, respectively, and then the purpose of the second symbol is to be used as a guard interval. The purpose of the four first symbols included in the fourth second symbol in the time domain is two for uplink transmission and two for downlink transmission, and then the fourth second symbol is an invalid symbol.

In addition, fig. 6 also shows an embodiment in which the sub-band in which the sub-carrier spacing is maximum 120kHz is used as the reference sub-band, and the sub-band in which the sub-carrier spacing is 15kHz, 30kHz, 60kHz, or 240kHz is used as the target sub-band.

It should be understood that the reference sub-band may also be the sub-band where the sub-carrier spacing is 30kHz as shown in fig. 6, or the sub-carrier spacing is 60kHz, 240kHz, etc., which is not limited in this application.

Optionally, the network device may further send fourth indication information to the terminal device, where the fourth indication information is used to indicate an effective duration of a slot format corresponding to the target subband. Similarly, the terminal device receives the fourth indication information, so that the terminal device does not need to detect the first indication information all the time within the effective duration, and the power consumption of the terminal device is saved.

Specifically, the fourth indication information may also be carried in the downlink control information, and the fourth indication information may "explicitly" indicate the effective duration of the timeslot format corresponding to the target subband, or "implicitly" indicate the effective duration of the timeslot format corresponding to the target subband. For example, the fourth indication information may indicate that the valid duration may be the same as the slot length corresponding to the reference subband, or 2 times the slot length corresponding to the reference subband, or 4 times the slot length corresponding to the reference subband, or infinity, i.e., the slot format may not change.

It should be understood that the fourth indication information may also be an indication of an effective duration of the time slot format corresponding to the reference subband, as long as the time slot format corresponding to the reference subband is not changed, the time slot format corresponding to the target subband is not changed, and if the time slot format corresponding to the reference subband is changed, the target subband re-determines the time slot format corresponding to the target subband according to the time slot format corresponding to the reference subband, that is, "implicitly" indicates the effective duration of the time slot format corresponding to the target subband.

Therefore, in the method for determining a timeslot format according to the embodiment of the present application, the terminal device determines a timeslot format corresponding to a reference subband in the multiple subbands, and determines a timeslot format corresponding to a target subband in the multiple subbands according to the timeslot format corresponding to the reference subband, where a type of a subcarrier interval in the target subband is different from a type of a subcarrier interval in the reference subband, so that the terminal device can transmit different services simultaneously, thereby improving transmission efficiency.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The method for determining the slot format according to the embodiment of the present application is described in detail above with reference to fig. 4, 5 and 6, and the terminal device and the network device according to the embodiment of the present application are described below with reference to fig. 7 and 8.

Fig. 7 is a schematic block diagram of a terminal device 700 according to an embodiment of the present application. As shown in fig. 7, the terminal device 700 includes:

a processing module 710, configured to determine a slot format corresponding to a reference subband in a plurality of subbands;

the processing module 710 is further configured to determine, according to the timeslot format corresponding to the reference subband, a timeslot format corresponding to a target subband in the multiple subbands, where a type of a subcarrier spacing in the target subband is different from a type of a subcarrier spacing in the reference subband.

Optionally, the terminal device 700 further includes: a receiving module 720, configured to receive first indication information, where the first indication information is used to indicate a slot format corresponding to the reference subband; the processing module 710 is specifically configured to: and determining the time slot format corresponding to the reference sub-band according to the first indication information.

Optionally, the receiving module 720 is specifically configured to: within the reference sub-band, the first indication information is received.

Optionally, the receiving module 720 is specifically configured to: and receiving the first indication information in each of a plurality of time slots corresponding to the target sub-band.

Optionally, the receiving module 720 is specifically configured to: and receiving the first indication information in a first time slot of a plurality of time slots corresponding to the target sub-band.

Optionally, if the interval of the subcarriers in the reference subband is smaller than the interval of the subcarriers in the target subband, the processing module 710 is specifically configured to: determining a first symbol corresponding to the reference subband according to a slot format corresponding to the reference subband, wherein the first symbol is used as a first protection interval and comprises at least two second symbols corresponding to the target subband in a time domain; determining at least one of the at least two second symbols as a second guard interval; and determining the time slot format corresponding to the target sub-band according to the second guard interval.

Optionally, if the interval of the sub-carriers in the reference sub-band is greater than the interval of the sub-carriers in the target sub-band, the processing module 710 is specifically configured to: determining the usage of all first symbols contained in a second symbol in a time domain according to a slot format corresponding to the reference subband, wherein the first symbol is a symbol corresponding to the reference subband, the second symbol is any symbol corresponding to the target subband, and the usage of the first symbol is used for uplink transmission, downlink transmission or as a guard interval; determining the purpose of the second symbol according to the purposes of all first symbols contained in the second symbol in the time domain; and determining the time slot format corresponding to the target sub-band according to the purpose of the second symbol.

Optionally, the processing module 710 is specifically configured to: if the usage of all the first symbols includes uplink transmission and downlink transmission, the usage of the second symbols is invalid; if the usage of all the first symbols includes usage for uplink transmission and usage as a guard interval, the usage of the second symbols is usage as a guard interval; if the purpose of all the first symbols includes use for downlink transmission and use as a guard interval, the purpose of the second symbols is use as a guard interval.

Optionally, the processing module 710 is specifically configured to: and determining the time slot format corresponding to the target sub-band according to the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band.

Optionally, the receiving module 720 is further configured to receive second indication information, where the second indication information is used to indicate a correspondence between a timeslot format corresponding to the target subband and a timeslot format corresponding to the reference subband; the processing module 710 is further configured to determine, according to the second indication information, a corresponding relationship between a slot format corresponding to the target subband and a slot format corresponding to the reference subband.

Optionally, the terminal device 700 further includes: a sending module, configured to send capability information to a network device, where the capability information is used to indicate a type of a subcarrier interval supported by a terminal device; the receiving module 720 is further configured to receive third indication information, where the third indication information is used to indicate the reference subband, and a type of a subcarrier spacing of the reference subband is one of types of subcarrier spacings supported by both the terminal device and the network device; the processing module 710 is further configured to determine the reference subband according to the third indication information.

Optionally, the receiving module 720 is further configured to receive fourth indication information, where the fourth indication information is used to indicate an effective duration of a timeslot format corresponding to the target subband.

Therefore, the terminal device according to the embodiment of the application determines the timeslot format corresponding to the reference subband in the subbands and determines the timeslot format corresponding to the target subband in the subbands according to the timeslot format corresponding to the reference subband, where the type of the subcarrier interval in the target subband is different from the type of the subcarrier interval in the reference subband, so that the terminal device can transmit different services at the same time, thereby improving transmission efficiency.

It should be understood that the terminal device 700 according to the embodiment of the present application may correspond to the terminal device in the method 400 for determining a slot format according to the embodiment of the present application, and the above and other management operations and/or functions of the respective modules in the terminal device 700 are respectively for implementing the corresponding steps of the respective methods, and are not described herein again for brevity.

The receiving module 720 in the embodiment of the present application may be implemented by a transceiver, and the processing module 710 may be implemented by a processor. As shown in fig. 8, terminal device 800 may include a transceiver 810, a processor 820, and a memory 830. Memory 830 may be used for storing information, and may also be used for storing code, instructions, etc. that are executed by processor 820.

Fig. 9 is a schematic block diagram of a network device 900 according to an embodiment of the present application. As shown in fig. 9, the network device 900 includes:

a processing module 910, configured to determine a slot format corresponding to a reference subband in a plurality of subbands;

a sending module 920, configured to send first indication information to a terminal device, where the first indication information is used to indicate a timeslot format corresponding to the reference subband, and the first indication information is further used to indicate that the terminal device determines, according to the timeslot format corresponding to the reference subband, a timeslot format corresponding to a target subband in the multiple subbands, where a type of a subcarrier interval in the target subband is different from a type of a subcarrier interval in the reference subband.

Optionally, the sending module 920 is specifically configured to: and transmitting the first indication information in the reference sub-band.

Optionally, the sending module 920 is specifically configured to: and transmitting the first indication information in each of a plurality of time slots corresponding to each of the plurality of sub-bands.

Optionally, the sending module 920 is specifically configured to: and transmitting the first indication information in a first time slot of a plurality of time slots corresponding to each sub-band in the plurality of sub-bands.

Optionally, the sending module 920 is specifically configured to: and sending second indication information, wherein the second indication information is used for indicating the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band.

Optionally, the network device 900 further includes: a receiving module, configured to receive capability information sent by the terminal device, where the capability information is used to indicate a type of a subcarrier interval supported by the terminal device; the sending module 920 is further configured to send third indication information to the terminal device, where the third indication information is used to indicate the reference subband, and the type of the subcarrier spacing of the reference subband is one of the types of the subcarrier spacing supported by both the terminal device and the network device.

Optionally, the sending module 920 is further configured to send fourth indication information, where the fourth indication information is used to indicate an effective duration of a timeslot format corresponding to the target subband.

Therefore, the network device according to the embodiment of the present application determines the timeslot format corresponding to the reference subband and sends the first indication information to the terminal device, so that the terminal device determines the timeslot format corresponding to the reference subband according to the first indication information, and thus the network device can transmit different services at the same time, thereby improving transmission efficiency. In addition, the network device may dynamically configure the slot format corresponding to the reference subband, so as to dynamically adjust the transmission service.

It should be understood that the network device 900 according to the embodiment of the present application may correspond to the network device in the method 400 for determining a slot format according to the embodiment of the present application, and the above and other management operations and/or functions of the respective modules in the network device 900 are respectively for implementing the corresponding steps of the respective methods, and are not described herein again for brevity.

The sending module 920 in this embodiment may be implemented by a transceiver, and the processing module 910 may be implemented by a processor. As shown in fig. 10, network device 1000 may include a transceiver 1010, a processor 1020, and a memory 1030. Memory 1030 may be used to store, among other things, indication information, and code, instructions, etc. that may be executed by processor 1020.

It is understood that processor 820 or processor 1020 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It is to be understood that memory 830 or memory 1030 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a system. As shown in fig. 11, the system 1100 includes:

the terminal device 700 according to the embodiment of the present application and the network device 900 according to the embodiment of the present application are described above.

Embodiments of the present application also provide a computer storage medium that can store program instructions for instructing any one of the methods described above.

Alternatively, the storage medium may be specifically the memory 830 or 1030.

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

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

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

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

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

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

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

Claims

1. A method of determining a slot format, comprising:

determining a time slot format corresponding to a reference sub-band in a plurality of sub-bands;

determining a time slot format corresponding to a target sub-band in the plurality of sub-bands according to the time slot format corresponding to the reference sub-band, wherein the type of the subcarrier spacing in the target sub-band is different from the type of the subcarrier spacing in the reference sub-band;

and receiving fourth indication information, wherein the fourth indication information is used for indicating the effective duration of the time slot format corresponding to the target sub-band.

2. The method of claim 1, further comprising:

receiving first indication information, wherein the first indication information is used for indicating a slot format corresponding to the reference subband;

wherein the determining of the slot format corresponding to the reference subband comprises:

and determining the time slot format corresponding to the reference sub-band according to the first indication information.

3. The method of claim 2, wherein the receiving the first indication information comprises:

receiving the first indication information at the reference subband.

4. The method of claim 2, wherein the receiving the first indication information comprises:

and receiving the first indication information in each time slot of a plurality of time slots corresponding to the target sub-band.

5. The method of claim 2, wherein the receiving the first indication information comprises:

and receiving the first indication information in a first time slot of a plurality of time slots corresponding to the target sub-band.

6. The method according to any one of claims 1 to 5, wherein if the spacing of the sub-carriers in the reference sub-band is smaller than the spacing of the sub-carriers in the target sub-band, the determining, according to the slot format corresponding to the reference sub-band, the slot format corresponding to the target sub-band in the plurality of sub-bands comprises:

determining a first symbol corresponding to the reference subband according to a slot format corresponding to the reference subband, wherein the first symbol is used as a first protection interval and comprises at least two second symbols corresponding to the target subband in a time domain;

determining at least one of the at least two second symbols as a second guard interval;

and determining the time slot format corresponding to the target sub-band according to the second guard interval.

7. The method according to any one of claims 1 to 5, wherein if the spacing of the sub-carriers in the reference sub-band is greater than the spacing of the sub-carriers in the target sub-band, the determining, according to the slot format corresponding to the reference sub-band, the slot format corresponding to the target sub-band in the plurality of sub-bands comprises:

determining the usage of all first symbols contained in a second symbol in a time domain according to a time slot format corresponding to the reference subband, wherein the first symbols are symbols corresponding to the reference subband, the second symbols are any symbols corresponding to the target subband, and the usage of the first symbols is used for uplink transmission, downlink transmission or as a guard interval;

determining the purpose of the second symbol according to the purposes of all first symbols contained in the second symbol in the time domain;

and determining the time slot format corresponding to the target sub-band according to the purpose of the second symbol.

8. The method of claim 7, wherein the determining the usage of the second symbol according to the usage of all first symbols included in the second symbol in the time domain comprises:

if the usage of all the first symbols included in the second symbol in the time domain includes the usage for uplink transmission and the usage for downlink transmission, the usage of the second symbol is invalid;

if the purpose of all the first symbols included in the second symbol in the time domain includes use for uplink transmission and use as a guard interval, the purpose of the second symbol is use as a guard interval;

if the purpose of all the first symbols included in the second symbol in the time domain includes use for downlink transmission and use as a guard interval, the purpose of the second symbol is use as a guard interval.

9. The method according to any of claims 1 to 5, wherein the determining a slot format corresponding to a target subband among the plurality of subbands according to a slot format corresponding to the reference subband comprises:

and determining the time slot format corresponding to the target sub-band according to the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band.

10. The method according to claim 9, wherein before determining the slot format corresponding to the target subband according to the slot format corresponding to the target subband and the slot format corresponding to the reference subband, the method further comprises:

receiving second indication information, wherein the second indication information is used for indicating a corresponding relation between a time slot format corresponding to the target sub-band and a time slot format corresponding to the reference sub-band;

and determining the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band according to the second indication information.

11. The method according to any of claims 1 to 5, wherein before determining the slot format corresponding to the reference subband, the method further comprises:

sending capability information to network equipment, wherein the capability information is used for indicating at least one subcarrier interval type supported by terminal equipment;

receiving third indication information, where the third indication information is used to indicate the reference subband, and a type of a subcarrier spacing of the reference subband is one of types of subcarrier spacings supported by both the terminal device and the network device;

and determining the reference sub-band according to the third indication information.

12. A method of determining a slot format, comprising:

sending first indication information to a terminal device, where the first indication information is used to indicate a time slot format corresponding to the reference subband, and the first indication information is also used to indicate the terminal device to determine a time slot format corresponding to a target subband in the multiple subbands according to the time slot format corresponding to the reference subband, where a type of a subcarrier interval in the target subband is different from a type of a subcarrier interval in the reference subband; and sending fourth indication information, wherein the fourth indication information is used for indicating the effective duration of the time slot format corresponding to the target sub-band.

13. The method of claim 12, wherein the sending the first indication information to the terminal device comprises:

and sending the first indication information on the reference sub-band.

14. The method of claim 12, wherein the sending the first indication information to the terminal device comprises:

and transmitting the first indication information in each of a plurality of time slots corresponding to each of the plurality of sub-bands.

15. The method of claim 12, wherein the sending the first indication information to the terminal device comprises:

and transmitting the first indication information in a first time slot of a plurality of time slots corresponding to each sub-band in the plurality of sub-bands.

16. The method according to any one of claims 12 to 15, further comprising:

and sending second indication information, wherein the second indication information is used for indicating the corresponding relation between the time slot format corresponding to the target sub-band and the time slot format corresponding to the reference sub-band.

17. The method according to any one of claims 12 to 15, further comprising:

receiving capability information sent by the terminal equipment, wherein the capability information is used for indicating the type of a subcarrier interval of the terminal equipment;

and sending third indication information to the terminal device, where the third indication information is used to indicate the reference subband, and the type of the subcarrier interval of the reference subband is one of the types of the subcarrier intervals supported by both the terminal device and the network device.

18. A terminal device, comprising:

the processing module is used for determining a time slot format corresponding to a reference sub-band in a plurality of sub-bands;

the processing module is further configured to determine, according to the slot format corresponding to the reference subband, a slot format corresponding to a target subband in the multiple subbands, where a type of a subcarrier interval in the target subband is different from a type of a subcarrier interval in the reference subband;

and a receiving module, configured to receive fourth indication information, where the fourth indication information is used to indicate an effective duration of a timeslot format corresponding to the target subband.

19. The terminal device of claim 18, wherein the terminal device further comprises:

the receiving module is configured to receive first indication information, where the first indication information is used to indicate a slot format corresponding to the reference subband;

the processing module is specifically configured to:

20. The terminal device of claim 19, wherein the receiving module is specifically configured to:

receiving the first indication information at the reference subband.

21. The terminal device of claim 19, wherein the receiving module is specifically configured to:

22. The terminal device of claim 19, wherein the receiving module is specifically configured to:

23. The terminal device according to any one of claims 18 to 22, wherein if the spacing of subcarriers in the reference subband is smaller than the spacing of subcarriers in the target subband, the processing module is specifically configured to:

24. The terminal device according to any one of claims 18 to 22, wherein if the spacing of subcarriers in the reference subband is greater than the spacing of subcarriers in the target subband, the processing module is specifically configured to:

25. The terminal device of claim 24, wherein the processing module is specifically configured to:

26. The terminal device according to any one of claims 18 to 22, wherein the processing module is specifically configured to:

27. The terminal device according to claim 26, wherein the receiving module is further configured to receive second indication information, where the second indication information is used to indicate a correspondence relationship between a slot format corresponding to the target subband and a slot format corresponding to the reference subband;

and the processing module is further configured to determine, according to the second indication information, a correspondence between a time slot format corresponding to the target subband and a time slot format corresponding to the reference subband.

28. The terminal device according to any of claims 18 to 22, characterized in that the terminal device further comprises:

a sending module, configured to send capability information to a network device, where the capability information is used to indicate a type of a subcarrier interval supported by a terminal device;

the receiving module is further configured to receive third indication information, where the third indication information is used to indicate the reference subband, and a type of a subcarrier spacing of the reference subband is one of types of subcarrier spacings supported by both the terminal device and the network device;

the processing module is further configured to determine the reference subband according to the third indication information.

29. A network device, comprising:

a sending module, configured to send first indication information to a terminal device, where the first indication information is used to indicate a time slot format corresponding to the reference subband, and the first indication information is further used to indicate the terminal device to determine, according to the time slot format corresponding to the reference subband, a time slot format corresponding to a target subband in the multiple subbands, where a type of a subcarrier interval in the target subband is different from a type of a subcarrier interval in the reference subband;

the sending module is further configured to send fourth indication information, where the fourth indication information is used to indicate an effective duration of a timeslot format corresponding to the target subband.

30. The network device of claim 29, wherein the sending module is specifically configured to:

and sending the first indication information on the reference sub-band.

31. The network device of claim 29, wherein the sending module is specifically configured to:

32. The network device of claim 29, wherein the sending module is specifically configured to:

33. The network device according to any one of claims 29 to 32, wherein the sending module is specifically configured to:

34. The network device of any one of claims 29 to 32, wherein the network device further comprises:

a receiving module, configured to receive capability information sent by the terminal device, where the capability information is used to indicate a type of a subcarrier interval supported by the terminal device;

the sending module is further configured to send third indication information to the terminal device, where the third indication information is used to indicate the reference subband, and a type of a subcarrier spacing of the reference subband is one of types of subcarrier spacings supported by both the terminal device and the network device.