CN112292827B

CN112292827B - Data transmission method, terminal equipment and network equipment

Info

Publication number: CN112292827B
Application number: CN201880094825.0A
Authority: CN
Inventors: 林亚男
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2022-07-29
Anticipated expiration: 2038-10-19
Also published as: WO2020077624A1; CN112292827A

Abstract

The embodiment of the application relates to a data transmission method, terminal equipment and network equipment. The method includes determining locations of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), the PUSCH transmitted by a first time unit comprising a plurality of slots; and transmitting the PUSCH to a network device through the first time unit. The data transmission method, the terminal device and the network device can effectively reduce the DMRS overhead.

Description

Data transmission method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and in particular, to a method for transmitting data, a terminal device, and a network device.

Background

Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which is generally considered a shared spectrum, i.e., a spectrum that can be used by communication devices in different communication systems as long as the regulatory requirements set by the country or region on the spectrum are met, without requiring a proprietary spectrum license to be applied to the government. For example, in some regions, the communication device follows the principle of "Listen Before Talk" (LBT), that is, the communication device needs to perform channel sensing Before performing signal transmission on a channel of an unlicensed spectrum, and can perform signal transmission only when the channel sensing result is that the channel is idle; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot transmit signals.

With the development of wireless communication technology, New Radio (NR) systems also consider networking over unlicensed spectrum to utilize the unlicensed spectrum for data service transmission.

When the NR system is applied to an Unlicensed spectrum, that is, an NR (NR-based access to Unlicensed spectrum, NR-U) system based on an Unlicensed frequency band access, the NR system may support subcarrier spacing (SCS) of 15kHz, 30kHz, 60kHz, and the like, and similarly, the NR-U may also support. For different SCSs, different numbers of time slots are included in the same time unit, and the larger the SCS is, the larger the number of the time slots is. When a Physical Uplink Shared Channel (PUSCH) is transmitted on an unlicensed carrier, if a PUSCH occupies resources of multiple slots for transmission, the position of a demodulation reference signal (DMRS) in each slot is independently determined, which increases the overhead of the DMRS.

Disclosure of Invention

The embodiment of the application provides a data transmission method, terminal equipment and network equipment, which can reduce the overhead of DMRS.

In a first aspect, a method for transmitting data is provided, including: determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is transmitted by a first time unit, and the first time unit comprises a plurality of time slots; and transmitting the PUSCH to a network device through the first time unit.

In a second aspect, a method for transmitting data is provided, including: sending scheduling information to a terminal device, wherein the scheduling information is used for the terminal device to determine that a Physical Uplink Shared Channel (PUSCH) is sent in a first time unit, wherein the PUSCH comprises a plurality of demodulation reference signal (DMRS) symbols, and the first time unit comprises a plurality of time slots; determining locations of the plurality of DMRS symbols; and receiving the PUSCH sent by the terminal equipment through the first time unit.

In a third aspect, a method for transmitting data is provided, including: determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is transmitted through one time slot; determining a target starting symbol from a plurality of candidate starting symbols comprised by the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols; transmitting all or part of the information in the PUSCH to the network device starting from the target starting symbol on the one slot.

In a fourth aspect, a method for transmitting data is provided, including: sending scheduling information to terminal equipment, wherein the scheduling information is used for the terminal equipment to determine that a Physical Uplink Shared Channel (PUSCH) is sent in one time slot, and the PUSCH comprises a plurality of demodulation reference signal (DMRS) symbols; determining a location of the plurality of DMRS symbols; determining a target starting symbol from a plurality of candidate starting symbols comprised by the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols; and receiving all or part of information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the one time slot.

In a fifth aspect, a terminal device is provided, configured to perform the method in the first aspect or each implementation manner thereof. Specifically, the terminal device includes a functional module configured to execute the method in the first aspect, the third aspect, or each implementation manner thereof.

In a sixth aspect, a network device is provided for performing the method of the second aspect or its implementation manners. In particular, the network device comprises functional modules for performing the methods of the second aspect, the fourth aspect, or their respective implementations described above.

In a seventh aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect, the third aspect, or each implementation manner thereof.

In an eighth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the second aspect, the fourth aspect or each implementation manner.

In a ninth aspect, there is provided a chip for implementing the method in any one of the first to fourth aspects or implementations thereof. Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device on which the chip is installed performs the method in any one of the first to fourth aspects or the implementation manners thereof.

A tenth aspect provides a computer-readable storage medium for storing a computer program for causing a computer to perform the method of any one of the first to fourth aspects or implementations thereof.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to fourth aspects or implementations thereof.

In a twelfth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to fourth aspects or implementations thereof.

Through the technical scheme, when the terminal equipment and the network equipment carry out PUSCH transmission on the unauthorized carrier, one PUSCH can occupy one or more time slots, and if one PUSCH occupies resources of a plurality of time slots, the PUSCH can be combined with the plurality of time slots to design the DMRS, so that the overhead of the DMRS can be effectively reduced. In addition, when the PUSCH includes a plurality of DMRSs, starting positions of a plurality of PUSCHs may be correspondingly set according to positions of the plurality of DMRSs, and the terminal device may select one starting position among the plurality of starting positions to transmit all or part of the PUSCH, so that setting the plurality of starting positions may increase a probability that the terminal device transmits the PUSCH on the unlicensed carrier.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a schematic flow chart of a method for transmitting data according to an embodiment of the present application;

fig. 3 is a schematic diagram of the positions of DMRS symbols provided by an embodiment of the present application;

fig. 4 is a schematic diagram of PUSCH transmission provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a position of a DMRS symbol and a candidate starting symbol of a PUSCH provided in an embodiment of the present application;

fig. 6 is a schematic diagram of HARQ usage at different SCS according to an embodiment of the present application;

FIG. 7 is another schematic flow chart diagram of a method for transmitting data according to an embodiment of the present application;

fig. 8 is a schematic block diagram of a terminal device provided in an embodiment of the present application;

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

fig. 10 is another schematic block diagram of a terminal device provided in an embodiment of the present application;

fig. 11 is another schematic block diagram of a network device provided by an embodiment of the present application;

fig. 12 is a schematic block diagram of a communication device provided in an embodiment of the present application;

FIG. 13 is a schematic block diagram of a chip provided by an embodiment of the present application;

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

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global System for Mobile communications (GSM) System, Code Division Multiple Access (CDMA) System, Wideband Code Division Multiple Access (WCDMA) System, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) System, LTE-a System, New Radio (NR) System, Evolution System of NR System, LTE (LTE-a) System on unlicensed spectrum, NR (NR-b) System on unlicensed spectrum, UMTS (UMTS) System on Mobile communications (GSM) System, UMTS (UMTS) System, Wireless Local Area Network (WLAN) System, WiFi (Wireless Local Area network, WiFi) System on Wireless Local Area Network (WLAN) System, General Packet Radio Service (GPRS) System, LTE-a System, NR System, Evolution System on NR System, LTE-b (LTE-a) System on unlicensed spectrum, and Wireless Local Area network (WiFi) System on Wireless Local Area Network (WLAN) System on unlicensed spectrum, Next generation communication systems or other communication systems, etc.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, etc., and the embodiments of the present application can also be applied to these Communication systems.

The application spectrum is not limited in the embodiments of the present application. For example, the embodiments of the present application may be applied to a licensed spectrum and may also be applied to an unlicensed spectrum.

For example, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. In an embodiment, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

In one embodiment, direct-to-Device (D2D) communication between end devices 120 is possible.

In one embodiment, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

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

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

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

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

In the NR system, when one PUSCH is transmitted through a plurality of slots, if the position of a DMRS in the PUSCH is divided in units of slots, for example, the DMRS is set at a fixed position within one slot, the overhead of the DMRS may be large for the PUSCH. Therefore, the embodiment of the present application provides a method for transmitting data, which designs DMRSs by combining multiple time slots, thereby reducing the overhead of DMRSs.

Fig. 2 is a schematic flow chart of a method 200 for transmitting data according to an embodiment of the present application, where the method 200 may be executed by a terminal device. As shown in fig. 2, the method 200 includes: s210, determining the positions of a plurality of DMRS symbols in a PUSCH, wherein the PUSCH is transmitted by a first time unit, and the first time unit comprises one or more time slots; s220, the PUSCH is transmitted to the network device by the first time unit.

It should be understood that, in 210, the terminal device determines the positions of the plurality of DMRS symbols in the PUSCH, and the PUSCH is transmitted through the first time unit, and the duration of the first time unit may be any value, and may be set according to an actual situation. In an embodiment, the unit of the duration of the first time unit may be a time unit, or may be the number of time slots included in the first time unit. For example, the duration of the first time unit is equal to 1ms, or the duration of the first time unit is equal to 2 ms. For another example, the duration of the first time unit is equal to 2 slots, or the duration of the first time unit is equal to 4 slots, etc. The embodiments of the present application are not limited thereto.

It should be understood that the first time unit may include one or more time slots, and the duration of each time slot may be set to a different value according to practical applications, for example, the duration of each time slot may be related to the size of the subcarrier interval corresponding to the first time unit.

Specifically, one slot may include a plurality of symbols, where in an NR system, each slot includes 14 symbols, for example, the symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a duration of each symbol is related to a subcarrier spacing, and a length of each symbol is smaller as the subcarrier spacing is larger, and is generally equal to a sum of a reciprocal of the subcarrier spacing and a cyclic prefix. For example, the subcarrier intervals supported by the NR system include 15kHz, 30kHz, 60kHz, etc., taking 15kHz as an example, 1 slot includes 14 symbols, the length of 1 slot is 1ms, and assuming that the duration of a first time unit is 2ms, the first time unit includes 2 slots; by analogy, a subcarrier spacing of 30kHz, correspondingly, a 2ms first time unit comprises 4 slots, a subcarrier spacing of 60kHz, and correspondingly, a 2ms first time unit comprises 8 slots.

It should be understood that, in this embodiment of the present application, the PUSCH transmitted by the first time unit may specifically include: the PUSCH occupies the entire duration of the first time unit for transmission, or the PUSCH occupies a continuous or discontinuous partial duration in the first time unit for transmission. For example, taking the first time unit shown in fig. 3 as an example, assuming that the first time unit includes 4 slots (slots), namely slot1, slot2, slot3, and slot4, the PUSCH may only occupy two slots, namely slot2 and slot3 in the middle, that is, as shown in the uppermost diagram in fig. 3; alternatively, the PUSCH may occupy all 4 slots, i.e. as shown in the middle diagram of fig. 3; alternatively, the PUSCH may also occupy multiple discontinuous slots in the first time unit, for example, the PUSCH may occupy two slots, i.e., slot1 and slot3, in the first time unit, or the PUSCH may also occupy partial symbols of one or more slots in the first time unit, for example, the PUSCH may be from a symbol in the middle of slot1 to a symbol in the middle of slot3, or the PUSCH may also occupy partial symbols in slot1 and partial symbols in slot3, which is not limited in this embodiment of the application.

It should be understood that the first time unit in the embodiment of the present application may be used for transmitting a PUSCH, and the PUSCH may include a plurality of DMRS symbols, where the plurality of DMRS symbols refer to symbols occupied by a plurality of DMRSs, and each DMRS in the plurality of DMRSs may occupy one symbol, or may also occupy a plurality of symbols, which is described herein by taking one DMRS to occupy one symbol, that is, one DMRS symbol represents one symbol occupied by one DMRS.

It should be understood that the symbols occupied by the DMRS may transmit only the DMRS, and may also transmit the DMRS and data, which is not limited in this application.

It should be understood that in the NR-U system, the location of the DMRS when the terminal device transmits the PUSCH may be configured by the network device, and thus, before S210, the method 200 may further include: the terminal equipment receives indication information sent by the network equipment, wherein the indication information is used for indicating the positions of a plurality of DMRS symbols included in the PUSCH; and the terminal equipment determines the positions of the plurality of DMRS symbols in the PUSCH according to the indication information.

In one embodiment, the first preset duration comprises at least two preset durations, and each of the at least two preset durations is used for determining a time interval between two adjacent DMRS symbols. The time intervals between two different adjacent DMRS symbols are determined independently, that is, the values of the at least two preset durations may be the same or different. That is, the plurality of DMRS symbols may be uniformly distributed or non-uniformly distributed.

Specifically, the terminal device may determine the position of each DMRS symbol in the multiple DMRS symbols in the PUSCH in multiple ways, for example, the terminal device may determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the PUSCH and a first preset duration (for example, a value of the first preset duration and a number of preset durations included in the first preset duration); for another example, the terminal device may further determine, according to the position of the first DMRS symbol in the first time unit and the first preset duration, the position of each DMRS symbol in the first time unit (or in the PUSCH), and the embodiment of the present application is not limited thereto.

As an embodiment, the terminal device may determine, according to the position of the first DMRS symbol in the PUSCH and the first preset duration, the position of each DMRS symbol in the PUSCH, or, when the PUSCH occupies part or all of continuous symbols in the first time unit, the terminal device may further determine, according to the position of the first DMRS symbol in the first time unit and the first preset duration, the position of each DMRS symbol in the PUSCH. Specifically, the position of the first DMRS symbol in the plurality of DMRS symbols relative to the first time unit or relative to the PUSCH may be preset, or may also be indicated by the network device, for example, the indication information received by the terminal device and transmitted by the network device may include the position of the first DMRS symbol.

In an embodiment, the first preset duration may be preset, or may also be indicated by the network device, for example, the indication information sent by the network device and received by the terminal device may also include the first preset duration. In an embodiment, the network device may determine the first preset duration according to the number of symbols or the number of slots included in the PUSCH; alternatively, the network device may further determine the first preset time duration according to the length of the first time unit.

In one embodiment, the plurality of DMRS symbols is determined according to a DMRS symbol pattern. Alternatively, the relative positional relationship between the plurality of DMRS symbols may be determined according to a DMRS symbol pattern.

Specifically, the terminal device may determine the position of each of the plurality of DMRS symbols within the PUSCH in various manners, for example, the terminal device may determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol within the PUSCH and the pattern of the DMRS symbols included within the PUSCH; for another example, the terminal device may determine the position of each DMRS symbol in the first time unit (or in the PUSCH) according to the position of the first DMRS symbol in the first time unit and the pattern of the DMRS symbols included in the first time unit (or in the PUSCH), and the embodiment of the present application is not limited thereto.

As an embodiment, the terminal device may determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the pattern of the DMRS symbols included in the PUSCH, or, when the PUSCH occupies part or all of the symbols that are consecutive in a first time unit, the terminal device may determine the position of each DMRS symbol in the first time unit according to the position of the first DMRS symbol in the first time unit and the pattern of the DMRS symbols included in the PUSCH. Specifically, the position of the first DMRS symbol in the plurality of DMRS symbols relative to the first time unit or relative to the PUSCH may be preset, or may also be indicated by the network device, for example, the indication information received by the terminal device and transmitted by the network device may include the position of the first DMRS symbol.

In one embodiment, the DMRS symbol pattern may be preset or may also be indicated by a network device, for example, the indication information received by the terminal device and sent by the network device may further include the indication information of the DMRS symbol pattern. For another example, the network device configures a plurality of DMRS symbol patterns in advance, and indicates which of the plurality of DMRS symbol patterns the terminal device uses by the indication information. In one embodiment, the network device may determine the DMRS symbol pattern according to the number of symbols or slots included in the PUSCH; alternatively, the network device may also determine the DMRS symbol pattern according to the length of the first time unit.

In one embodiment, the plurality of DMRS symbols may be uniformly distributed, that is, a time interval between any two adjacent DMRS symbols is a constant value, and the constant value is referred to as a first preset time duration.

Specifically, the terminal device may determine the position of each DMRS symbol in the plurality of DMRS symbols in the PUSCH in various manners, for example, the terminal device may determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the time interval between two adjacent DMRS symbols; for another example, the terminal device may also determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the number of DMRS symbols included in the PUSCH; for another example, the terminal device may also determine, according to the position of the first DMRS symbol in the first time unit and the time interval between two adjacent DMRS symbols, the position of each DMRS symbol in the first time unit (or in the PUSCH); for another example, the terminal device may determine the position of each DMRS symbol in the first time element (or in the PUSCH) according to the position of the first DMRS symbol in the first time element and the number of DMRS symbols included in the first time element (or in the PUSCH), and the embodiment of the present invention is not limited thereto.

As an embodiment, the terminal device may determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the time interval between two adjacent DMRS symbols, or, when the PUSCH occupies part or all of the symbols that are consecutive in the first time unit, the terminal device may determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the first time unit and the time interval between two adjacent DMRS symbols. Specifically, the position of the first DMRS symbol in the plurality of DMRS symbols relative to the first time unit or relative to the PUSCH may be preset, or may also be indicated by the network device, for example, the indication information received by the terminal device and transmitted by the network device may include the position of the first DMRS symbol.

In an embodiment, a time interval between any two adjacent DMRS symbols is a first preset duration, where the first preset duration may be preset, or may also be indicated by a network device, for example, the indication information received by the terminal device and sent by the network device may further include the first preset duration. In an embodiment, the network device may determine the first preset time duration according to a moving speed of the terminal device or a coverage area size of a cell; or, the network device may further determine the first preset time according to a size of a subcarrier interval corresponding to the first time unit.

In one embodiment, the larger the subcarrier spacing is, the more symbols are included in the corresponding first preset time duration. For example, assuming that the first preset duration includes N15 kHz symbols when the subcarrier spacing is 15kHz, the first preset duration includes 2N 30kHz symbols when the subcarrier spacing is 30 kHz.

It is to be understood that the position of the first DMRS symbol may be calculated from a starting symbol of a PUSCH or a starting symbol of a first time unit, for example, the position of the first DMRS symbol may be a second symbol after the starting symbol of the PUSCH, or the position of the first DMRS symbol may be a first symbol after the starting symbol of the first time unit.

Taking fig. 3 as an example, fig. 3 shows a schematic diagram of positions of DMRS symbols in a first time unit corresponding to different subcarrier intervals according to an embodiment of the present application. As shown in fig. 3, taking a first time unit with a subcarrier spacing of 30kHz as an example for explanation, it is assumed that the first time unit includes 4 slots (slots), namely slot1, slot2, slot3, and slot4, where each slot includes 14 symbols. And the terminal equipment determines the position of the first DMRS symbol relative to the first time unit or relative to the PUSCH according to the indication information or preset.

Assuming that the terminal device determines the position of the first DMRS symbol relative to the PUSCH, as shown in the upper diagram in fig. 3, the PUSCH occupies

slots

2 and 3 of the first time unit, assuming that the terminal device determines that the position of the first DMRS symbol is the third symbol after the starting symbol of the PUSCH, and the time interval between two adjacent DMRS symbols is 10 symbols, the terminal device may obtain the positions of 3 DMRS symbols in the PUSCH from the position of the first DMRS symbol, and then the 10 th symbol after the first DMRS symbol is the position of the second DMRS symbol, and so on until the ending position of the PUSCH, where the 3 DMRS symbols are not evenly distributed in each slot, and some slots include 1 DMRS symbol and some slots include 2 DMRS symbols, so that the positions of the DMRS symbols are jointly set for multiple slots, which may effectively reduce overhead of the DMRS symbols.

Assuming that the terminal device determines the position of the first DMRS symbol with respect to the first time unit, as shown in the middle diagram in fig. 3, assuming that the PUSCH occupies all slots of the first time unit, the terminal device may determine the position of each DMRS symbol with reference to the first time unit. Assuming that the terminal device determines that the position of the first DMRS symbol is the second symbol after the start symbol of the first time unit, and the time interval between two adjacent DMRS symbols is 10 symbols, the terminal device starts from the position of the first DMRS symbol, and the 10 th symbol after the first DMRS symbol is the position of the second DMRS symbol, and so on until the end position of the PUSCH, that is, the positions of the 6 DMRS symbols in the first time unit can be obtained in total, the 6 DMRS symbols are not evenly distributed in each slot, wherein some slots include 1 DMRS symbol, and some slots include 2 DMRS symbols, so that the positions of the symbols are set jointly by combining multiple slots, and DMRS symbol overhead can be effectively reduced.

Similarly, as another embodiment, the terminal device may further determine the position of each DMRS symbol in the PUSCH according to the position of the first DMRS symbol in the PUSCH, the number of symbols occupied by the PUSCH, and the number of the plurality of DMRS symbols; or, when the PUSCH occupies part or all of continuous symbols in the first time unit, the terminal device may further determine the position of each DMRS symbol according to the position of the first DMRS symbol in the first time unit, the duration of the first time unit, and the number of DMRS symbols included in the first time unit. Specifically, the position of the first DMRS symbol relative to the PUSCH or the position of the first time unit may be preset, or may also be indicated by the network device, for example, the indication information received by the terminal device and sent by the network device may include the position of the first DMRS symbol.

It is to be understood that the position of the first DMRS symbol may be calculated from the starting symbol of the PUSCH or the starting symbol of the first time unit, for example, the position of the first DMRS symbol may be the second symbol after the starting symbol of the PUSCH, or the position of the first DMRS symbol may be the second symbol after the starting symbol of the first time unit.

In addition, the number of DMRS symbols included in the PUSCH may be indicated by the network device, for example, the indication information received by the terminal device and transmitted by the network device may include the number of DMRS symbols included in the PUSCH. For example, the network device may determine a time interval between two DMRS symbols, that is, a first preset duration, according to the moving speed of the terminal device; or, the network device may further determine a first preset time duration according to the size of the subcarrier interval corresponding to the PUSCH, further determine the number of DMRS symbols in the PUSCH according to the number of symbols occupied by the PUSCH or the length of the first time unit, and indicate the number of the DMRS symbols to the terminal device through the indication information.

Still taking fig. 3 as an example, as shown in the lowermost diagram in fig. 3, taking a first time unit with a subcarrier spacing of 15kHz as an example for explanation, it is assumed that the first time unit includes 2 slots (slots), which are slot1 and slot2, respectively, where each slot includes 14 symbols, that is, 28 symbols in total for the first time unit, and PUSCH occupies all symbols in the first time unit. The terminal device determines, according to the indication information or preset, that the position of the first DMRS symbol is a second symbol after the starting symbol of the PUSCH or a second symbol after the starting symbol of the first time unit, and meanwhile, may determine, according to the indication information, that the PUSCH, that is, the first time unit, includes 6 DMRS symbols in total, and then the terminal device may determine, according to the number of symbols occupied by the PUSCH, that is, the positions of 28 symbols, 6 DMRS symbols, and the first DMRS symbol included in the first time unit, that the time interval between two adjacent DMRS symbols is 5 symbols. The terminal device may obtain the positions of the 6 DMRS symbols in the PUSCH or in the first time unit from the first DMRS symbol in the PUSCH or in the first time unit, and then the 5 th symbol is the second DMRS symbol, and so on until the PUSCH is ended, as shown in the lower diagram in fig. 3.

It should be understood that, in this embodiment of the present application, the indication information sent by the network device and received by the terminal device may be physical layer signaling, or may also be Radio Resource Control (RRC) signaling, or may also be Medium Access Control (MAC) signaling, which is not limited in this application.

In one embodiment, the position of the DMRS symbol indicated by the network device for the terminal device generally considers the following condition: the location of the plurality of DMRS symbols does not include a first symbol in the slot; and/or the positions of the plurality of DMRS symbols do not include a last symbol in the slot; the time slot may be a time slot in the first time unit, so that other terminal devices except the terminal device may perform LBT channel sensing for the time slot in the first time unit or a next time slot of the time slot, so as to transmit data using the time slot or the next time slot of the time slot if it is determined that a channel is idle. In one embodiment, the time slot may be any one of the time slots in the first time unit.

When the terminal device transmits the PUSCH through the first time unit comprising one or more time slots, the network device can configure the position of the DMRS symbol according to the practical application, and if the PUSCH occupies a plurality of time slots, the position of the DMRS symbol can be jointly determined by combining the plurality of time slots, so that the overhead of the DMRS symbol can be effectively reduced.

In the embodiment of the present application, before sending the PUSCH, the terminal device may detect a channel on an unlicensed spectrum, and send the PUSCH only when the channel is idle (that is, LBT is successful), otherwise, the PUSCH cannot be sent. In order to improve the uplink transmission efficiency, partial PUSCH transmission based on the channel detection result is introduced, that is, PUSCH may start transmission at the start of one slot, or may start transmission in the middle of one slot, that is, partial PUSCH transmission is transmitted. For example, fig. 4 shows several possibilities for transmission of PUSCH, at the starting time of a slot, if LBT succeeds, all PUSCH can be transmitted through the slot, i.e. the first or second slot on the left side in fig. 4; if LBT fails at the start time of a slot and LBT succeeds at a position in the middle of the slot, a partial PUSCH, i.e. the fifth slot shown in fig. 4, which transmits only a partial PUSCH, may also be transmitted with the position (or the start position of a symbol after the position) as the starting point.

The partial PUSCH transmission may enable the terminal device to have more channel access opportunities, and how to support the partial PUSCH transmission is a problem to be solved at present. In the method for transmitting data according to the embodiment of the present application, when the PUSCH includes a plurality of DMRS symbols, the position of the starting symbol of the PUSCH may be determined according to the position of the DMRS symbol, and setting the plurality of starting symbols may increase the probability that the terminal device transmits the PUSCH on the unlicensed carrier.

Specifically, in S220, the terminal device sends the PUSCH to the network device by using the first time unit, which may further include: and the terminal equipment transmits all or part of PUSCH to the network equipment through the first time unit. Specifically, the terminal device may determine, according to the positions of the plurality of DMRS symbols, positions of a plurality of candidate starting symbols for transmitting the PUSCH, where each candidate starting symbol in the plurality of candidate starting symbols indicates that the terminal device may use the candidate starting symbol as a starting symbol for actually transmitting the PUSCH; and the terminal equipment determines a target starting symbol for transmitting the PUSCH from the plurality of candidate starting symbols, and transmits corresponding part or all of information in the PUSCH from the target starting symbol, wherein the number of the plurality of candidate starting symbols of the PUSCH is related to the number of the plurality of DMRS symbols in the first time unit.

It should be appreciated that prior to S220, the method 200 may further include: the terminal equipment receives scheduling information sent by the network equipment, wherein the scheduling information is used for indicating the terminal equipment to send the PUSCH on a first time unit, so that the terminal equipment determines to send the PUSCH to the network equipment according to the scheduling information. In one embodiment, the scheduling information may further include the above-mentioned indication information, which is used for the terminal device to determine the positions of the plurality of DMRS symbols in the PUSCH.

It should be appreciated that the terminal device determining a plurality of candidate starting symbols for transmission of PUSCH may include: the terminal device may use the starting symbol of the PUSCH as one of the candidate starting symbols of the PUSCH, or, when the PUSCH is the same as the starting symbol of the first time unit, for example, the PUSCH occupies all the time of the first time unit, the terminal device may use the starting symbol of the first time unit as one of the candidate starting symbols of the PUSCH. Thus, if the terminal device obtains the channel usage right (e.g., LBT success) at the starting symbol of the PUSCH, the information of the entire PUSCH may be transmitted through the portion corresponding to the first time unit.

In one embodiment, in addition to the first time unit or the starting symbol of PUSCH as one candidate starting symbol described above, for one candidate starting symbol of the other plurality of candidate starting symbols, for example referred to as a first candidate starting symbol, the first candidate starting symbol may correspond to at least one DMRS symbol of the plurality of DMRS symbols, i.e. the first candidate starting symbol is determined according to the at least one DMRS symbol. For convenience of explanation, the at least one DMRS symbol is taken as an example of one DMRS symbol, and is referred to as a first DMRS symbol, that is, a first candidate starting symbol is determined according to the first DMRS symbol. In one embodiment, the first candidate starting symbol is any one of a plurality of candidate starting symbols other than the starting symbol of the PUSCH.

In one embodiment, a time interval between the first candidate start symbol and the first DMRS symbol is equal to a second preset duration. Specifically, for a first DMRS symbol, a terminal device may determine a symbol at a position of a second preset duration before the first DMRS symbol as a first candidate starting symbol, where the second preset duration may be set according to an actual application, for example, the second preset duration may be equal to 1 symbol, or the second preset duration may also be equal to 0, that is, the position of the first DMRS symbol is the position of the first candidate starting symbol.

It should be understood that the time interval between the different first candidate starting symbol and the first DMRS symbol may be the same or different, and the application is not limited thereto.

In one embodiment, the first DMRS symbol may be one of the other DMRS symbols in the PUSCH or in the plurality of DMRS symbols within the first time unit except for the first DMRS symbol.

Taking fig. 5 as an example, fig. 5 shows a schematic diagram of positions of DMRS symbols and candidate starting symbols of PUSCH according to an embodiment of the present application, as shown in fig. 5, when a subcarrier interval is 30kHz, a first time unit includes 4 slots, and a PUSCH occupies the entire duration in the first time unit, the PUSCH or the first time unit includes 6 DMRS symbols in total, and positions of the 6 DMRS symbols are as shown in fig. 5, where the terminal device uses the starting symbol position of the first time unit as one candidate starting symbol, and simultaneously uses 1 symbol before each DMRS symbol position except the first DMRS symbol as a candidate starting symbol, and as shown in fig. 5, there are 6 candidate starting symbols in the first time unit corresponding to 30kHz, that is, positions indicated by black arrows in fig. 5.

For the subcarrier interval in fig. 5 being 15kHz, the first time unit includes 2 slots, and it is also assumed that a PUSCH occupies the entire duration in the first time unit, the PUSCH or the first time unit includes 6 DMRS symbols, and the positions of the 6 DMRS symbols are as shown in fig. 5, where the terminal device uses the starting symbol position of the first time unit as a candidate starting symbol, and also uses each of the other DMRS symbols except the first DMRS symbol as a candidate starting symbol, and 5 DMRS symbols in total correspond to 5 candidate starting symbols except the first DMRS symbol, as shown in fig. 5, there are 6 candidate starting symbols in the first time unit of 15kHz, that is, the positions indicated by black arrows in fig. 5.

When the PUSCH is transmitted, the terminal equipment adopts an LBT mode to listen first, and when a channel is idle, the PUSCH is transmitted. Specifically, the determining, by the terminal device, a target starting symbol in the multiple candidate starting symbols in an LBT manner may specifically include: and determining the candidate initial symbol of the first obtained channel usage rights in the plurality of candidate initial symbols included in the PUSCH as the target initial symbol.

In one embodiment, the terminal device transmits all information in the PUSCH on the first time unit starting from the target starting symbol.

In one embodiment, the terminal device does not transmit information in the PUSCH from the start symbol of the PUSCH to the start of the target start symbol on the first time unit; and transmitting corresponding information in the PUSCH from the target starting symbol to the ending symbol of the PUSCH in the first time unit. In one embodiment, the terminal device may discard the corresponding partial information that should be mapped to the PUSCH from the start symbol of the PUSCH to the start symbol of the target PUSCH, and only transmit the corresponding partial information from the start symbol of the target PUSCH to the end symbol of the PUSCH. In one embodiment, the terminal device transmits the partial information starting from the head in the PUSCH and discarding the partial information at the tail in the PUSCH on the first time unit from the target starting symbol to the ending symbol of the PUSCH, wherein the time length of the discarded partial information is equal to the time length from the starting symbol of the PUSCH to the target starting symbol.

For example, for fig. 5, when the subcarrier interval is 15kHz, the positions of the DMRS symbols and the candidate start symbols are as shown in fig. 5, where it is still assumed that the PUSCH occupies all of the first time unit, if the terminal device fails LBT at the start symbol of the first time unit, continue to monitor, if the second candidate start symbol still fails LBT, that is, LBT at the second DMRS symbol position fails, continue to monitor, if the third candidate start symbol succeeds LBT, that is, LBT at the third DMRS symbol position succeeds, the position is the target start symbol, and transmit the partial information corresponding to the target start symbol in the PUSCH starting from the position.

Correspondingly, since the network device does not know when the terminal device will transmit the PUSCH, the network device may determine the starting symbol of the corresponding PUSCH by blindly detecting the existence of the DMRS symbol. Specifically, the network device determines whether a DMRS symbol corresponding to the terminal device exists through blind detection, and determines a starting symbol of a PUSCH according to the detected DMRS symbol. For example, taking fig. 5 as an example, for a first time unit corresponding to 30kHz, assuming that a PUSCH occupies all the first time units, the PUSCH or the positions of 6 DMRS symbols included in the first time unit and 6 candidate starting symbols are as shown in fig. 5. The network device performs blind detection on the DMRS symbols starting from the first DMRS symbol in the first time element, and does not detect the DMRS symbol of the terminal device for the first time until the DMRS symbol corresponding to the terminal device is detected, and if the network device detects the position of the third DMRS symbol, the network device detects the DMRS symbol of the terminal device for the first time, that is, the terminal device transmits the partial PUSCH, and the network device determines the starting symbol of the partial PUSCH transmitted by the terminal device according to the position of the third DMRS symbol, for example, as shown in fig. 5, the network device may determine that the starting symbol of the partial PUSCH is located at the previous symbol of the third DMRS symbol, and then the network device receives the partial PUSCH information transmitted by the terminal device from the symbol, but the embodiment of the present application is not limited thereto.

Therefore, in the method for transmitting data according to the embodiment of the present application, when PUSCH transmission is performed on an unlicensed carrier, one PUSCH may occupy one or more slots, and if one PUSCH occupies resources of multiple slots, a DMRS may be designed by combining multiple slots, so that overhead of the DMRS may be effectively reduced. In addition, when the PUSCH includes a plurality of DMRSs, starting positions of a plurality of PUSCHs may be correspondingly set according to positions of the plurality of DMRSs, and the terminal device may select one starting position among the plurality of starting positions to transmit all or part of the PUSCH, so that setting the plurality of starting positions may increase a probability that the terminal device transmits the PUSCH on the unlicensed carrier.

The NR-U system supports subcarrier spacing of 15kHz, 30kHz, and 60kHz, but opportunistic transmission on an unlicensed spectrum may cause a Physical Downlink Shared Channel (PDSCH) transmitted on the carrier to be unable to obtain timely Hybrid Automatic Repeat reQuest (HARQ) feedback, so that when the SCS carrier spacing is large, the number of HARQ processes in the current system may be insufficient. For example, each terminal device in the system includes 16 HARQ processes, and as shown in fig. 6, assuming that a Channel Occupancy Time (COT) is 10ms, for 15kHz, the COT includes 10 slots, and the current 16 HARQ processes can meet the transmission requirement. However, for 60kHz, the COT includes 40 slots, and at most, the 16 HARQ processes can only support 4ms COT transmission, and cannot meet the requirement of downlink transmission efficiency. Therefore, in the NR-U system, a case may occur where one physical channel, for example, one PDSCH, is transmitted through a plurality of slots.

Similar to PUSCH transmission, DMRS overhead may also be reduced by setting a DMRS in a manner combining multiple slots, and specifically, the setting may be performed by referring to the above manner for setting the DMRS in the PUSCH, which is not described herein again.

Similar to PUSCH transmission, multiple candidate starting symbols for PDSCH transmission may also be set according to multiple DMRS symbols to improve the spectrum utilization rate of downlink transmission, and specifically, the setting may be performed by referring to the above-described manner for determining the candidate starting symbols in the PUSCH, which is not described herein again.

It should be understood that, in addition to being used for data Channel transmission, the method in the embodiment of the present application may also be used for transmission of other channels, for example, a Physical Uplink Control Channel (PUCCH), and the present application does not limit this.

The method for transmitting data according to the embodiment of the present application is described in detail from the perspective of the terminal device in the above with reference to fig. 1 to 6, and the method for transmitting data according to the embodiment of the present application is described from the perspective of the network device in the following with reference to fig. 7.

Fig. 7 shows a schematic flow chart of a method 300 of transmitting data according to an embodiment of the present application, where the method 300 may be performed by a network device, specifically, for example, the network device 110 in fig. 1. As shown in fig. 7, the method 300 includes: s310, sending scheduling information to a terminal device, wherein the scheduling information is used for the terminal device to determine that a PUSCH is sent in a first time unit, wherein the PUSCH comprises a plurality of DMRS symbols, and the first time unit comprises one or more time slots; s320, determining the positions of the DMRS symbols; s330, receiving the PUSCH transmitted by the terminal device by the first time unit.

As an embodiment, the method 300 further comprises: and sending indication information to the terminal equipment, wherein the indication information is used for the terminal equipment to determine the positions of the plurality of DMRS symbols in the PUSCH.

As an embodiment, a time interval between any two adjacent DMRS symbols in the plurality of DMRS symbols is equal and equal to a first preset time duration.

As an embodiment, the indication information is used for the terminal device to determine a position of a first DMRS symbol of the plurality of DMRS symbols in the PUSCH.

As an embodiment, the indication information is used by the terminal device to determine a position of a first DMRS symbol of the plurality of DMRS symbols on the first time unit.

As an embodiment, the indication information is used for the terminal device to determine the first preset duration.

As an embodiment, the indication information is used for the terminal device to determine the number of the plurality of DMRS symbols.

As an embodiment, the first preset time period is determined according to a moving speed of the terminal device or a subcarrier interval corresponding to the PUSCH.

As an embodiment, the location of the plurality of DMRS symbols does not include a first symbol in a first slot; and/or the locations of the plurality of DMRS symbols do not include a last symbol in the first slot; wherein the first time slot is a time slot in the first time unit.

As an embodiment, the method 300 further comprises: determining a target starting symbol from a plurality of candidate starting symbols included in the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols; the receiving, by the first time unit, the PUSCH transmitted by the terminal device includes: and receiving all or part of the information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the first time unit.

As one embodiment, the plurality of candidate starting symbols includes a starting symbol of the PUSCH.

As an embodiment, the plurality of candidate starting symbols are determined from the plurality of DMRS symbols, including: a time interval between a first candidate start symbol of the plurality of candidate start symbols and a corresponding first DMRS symbol of the plurality of DMRS symbols is equal to a second preset duration.

As an embodiment, the second preset duration is equal to zero.

As an embodiment, the second preset duration is equal to one symbol.

As an embodiment, the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

As an embodiment, the number of the plurality of candidate start symbols is the same as the number of the plurality of DMRS symbols, and no other DMRS symbol is included between the first candidate start symbol and the first DMRS symbol, the other DMRS symbol being a symbol of the plurality of DMRS symbols other than the first DMRS symbol.

As an embodiment, the determining a target starting symbol from a plurality of candidate starting symbols comprised by the PUSCH comprises: and determining a candidate starting symbol corresponding to the first detected DMRS symbol in the plurality of DMRS symbols included in the PUSCH as the target starting symbol.

As an embodiment, the receiving all or part of the information in the PUSCH transmitted by the terminal device starting from the target starting symbol on the first time unit includes: not receiving information in the PUSCH from a starting symbol of the PUSCH to a starting symbol of the target starting symbol on the first time unit; and receiving corresponding information in the PUSCH from the target starting symbol to the ending symbol of the PUSCH in the first time unit.

Therefore, in the method for transmitting data according to the embodiment of the present application, when PUSCH transmission is performed on an unlicensed carrier, one PUSCH may occupy one or more slots, and if one PUSCH occupies resources of multiple slots, a DMRS may be designed by combining multiple slots, so that overhead of the DMRS may be effectively reduced. In addition, when the PUSCH includes multiple DMRSs, the terminal device may set start positions of multiple PUSCHs correspondingly according to positions of the multiple DMRSs, and the terminal device may select one start position from the multiple start positions to transmit all or part of the PUSCH, so that setting the multiple start positions may increase a probability that the terminal device transmits the PUSCH on the unlicensed carrier, and correspondingly, the network device may determine the start position for transmitting the PUSCH by blindly detecting the DMRSs, so as to receive the PUSCH.

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. Also, various embodiments of the present application describe only some, but not all, steps in a method of transmitting data; all steps in the various embodiments of the present application are not necessarily performed, and only some steps may be performed, and the embodiments of the present application are not limited thereto.

The method for transmitting data according to the embodiment of the present application is described in detail above with reference to fig. 1 to 7, and the apparatus for transmitting data according to the embodiment of the present application will be described below with reference to fig. 8 to 14.

As shown in fig. 8, a terminal device 400 according to an embodiment of the present application includes: a processing unit 410 and a transceiving unit 420, in particular, the processing unit 410 is configured to: determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is transmitted through a first time unit, and the first time unit comprises a plurality of time slots; the transceiving unit 420 is configured to: and transmitting the PUSCH to the network equipment through the first time unit.

As an embodiment, the processing unit 410 is further configured to: and determining the positions of the plurality of DMRS symbols in the PUSCH according to the indication information transmitted by the network equipment.

As an embodiment, the indication information is used to determine a position of a first DMRS symbol of the plurality of DMRS symbols in the PUSCH; the processing unit 410 is further configured to: and determining the position of each DMRS symbol in the plurality of DMRS symbols in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the first preset time length.

For one embodiment, the indication information is used to determine a location of a first DMRS symbol of the plurality of DMRS symbols on the first time unit; the processing unit 410 is further configured to: and determining the position of each DMRS symbol in the plurality of DMRS symbols on the first time unit according to the position of the first DMRS symbol on the first time unit and the first preset time length.

For one embodiment, the indication information is used to determine the first preset duration.

As an embodiment, the indication information is used to determine the number of the plurality of DMRS symbols; the processing unit 410 is further configured to: determining the first preset time length according to the PUSCH transmission time length and the number of the DMRS symbols; or, determining the first preset time duration according to the time duration of the first time unit and the number of the DMRS symbols.

As an embodiment, the processing unit 410 is further configured to: determining a target starting symbol from a plurality of candidate starting symbols included in the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols; the transceiving unit 420 is further configured to: transmitting all or part of the information in the PUSCH to the network device starting from the target starting symbol on the first time unit.

As an embodiment, the second preset duration is equal to zero.

As an embodiment, the processing unit 410 is further configured to: and determining the candidate initial symbol of the first obtained channel usage rights in the plurality of candidate initial symbols included in the PUSCH as the target initial symbol.

As an embodiment, the transceiving unit 420 is further configured to: not transmitting information in the PUSCH from the starting symbol of the PUSCH to the starting symbol of the target starting symbol on the first time unit; and transmitting corresponding information in the PUSCH from the target starting symbol to the ending symbol of the PUSCH in the first time unit.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to performing the method 200 in the embodiment of the present application, and the above and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing corresponding flows of the terminal device in each method in fig. 1 to fig. 7, and are not described herein again for brevity.

Therefore, when the terminal device of the embodiment of the application performs PUSCH transmission on an unlicensed carrier, one PUSCH may occupy one or more slots, and if one PUSCH occupies resources of multiple slots, a DMRS may be designed by combining multiple slots, so that the overhead of the DMRS may be effectively reduced. In addition, when the PUSCH includes a plurality of DMRSs, a starting position where a plurality of PUSCHs are correspondingly set may be determined according to positions of the plurality of DMRSs, and the terminal device may select one starting position among the plurality of starting positions to transmit all or part of the PUSCH, so that setting the plurality of starting positions may increase a probability that the terminal device transmits the PUSCH on the unlicensed carrier.

As shown in fig. 9, a network device 500 according to an embodiment of the present application includes: a processing unit 510 and a transceiver unit 520, specifically, the transceiver unit 520 is configured to: sending scheduling information to a terminal device, wherein the scheduling information is used for the terminal device to determine that a Physical Uplink Shared Channel (PUSCH) is sent in a first time unit, wherein the PUSCH comprises a plurality of demodulation reference signal (DMRS) symbols, and the first time unit comprises a plurality of time slots; the processing unit 510 is configured to: determining a location of the plurality of DMRS symbols; the transceiving unit 520 is further configured to: and receiving the PUSCH sent by the terminal equipment through the first time unit.

As an embodiment, the transceiving unit 520 is further configured to: and sending indication information to the terminal equipment, wherein the indication information is used for the terminal equipment to determine the positions of the plurality of DMRS symbols in the PUSCH.

As an embodiment, the processing unit 510 is further configured to: determining a target starting symbol from a plurality of candidate starting symbols included in the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols; the transceiving unit 520 is further configured to: and receiving all or part of the information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the first time unit.

As an embodiment, the second preset duration is equal to zero.

As an embodiment, the processing unit 510 is further configured to: and determining a candidate starting symbol corresponding to the first detected DMRS symbol in the plurality of DMRS symbols included in the PUSCH as the target starting symbol.

As an embodiment, the transceiving unit 520 is further configured to: not receiving information in the PUSCH from a starting symbol of the PUSCH to a starting symbol of the target starting symbol on the first time unit; and receiving corresponding information in the PUSCH from the target starting symbol to the ending symbol of the PUSCH in the first time unit.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to performing the method 300 in the embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 500 are respectively for implementing corresponding flows of the network devices in the methods in fig. 1 to fig. 7, and are not described herein again for brevity.

Therefore, when the network device of the embodiment of the application receives the PUSCH transmitted by the network device on the unlicensed carrier, the PUSCH may occupy one or more slots, and if the PUSCH occupies resources of multiple slots, the DMRS may be designed in association with multiple slots, so that the overhead of the DMRS may be effectively reduced. In addition, when the PUSCH includes multiple DMRSs, the terminal device may set start positions of multiple PUSCHs correspondingly according to positions of the multiple DMRSs, and the terminal device may select one start position from the multiple start positions to transmit all or part of the PUSCH, so that setting the multiple start positions may increase a probability that the terminal device transmits the PUSCH on the unlicensed carrier, and correspondingly, the network device may determine the start position for transmitting the PUSCH by blindly detecting the DMRSs, so as to receive the PUSCH.

As shown in fig. 10, a terminal device 600 according to an embodiment of the present application includes: a processing unit 610 and a transceiving unit 620. Specifically, the processing unit 610 is configured to: determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is transmitted by one slot, and a target starting symbol is determined from a plurality of candidate starting symbols included in the PUSCH, wherein the plurality of candidate starting symbols are determined according to the positions of the plurality of DMRS symbols; the transceiving unit 620 is configured to: and transmitting all or part of the information in the PUSCH to the network equipment from the target starting symbol on the one time slot.

As an embodiment, the processing unit 610 is further configured to: and determining the positions of the plurality of DMRS symbols in the PUSCH according to the indication information transmitted by the network equipment.

As an embodiment, the indication information is used to determine a position of a first DMRS symbol of the plurality of DMRS symbols in the PUSCH; the processing unit 610 is further configured to: and determining the position of each DMRS symbol in the plurality of DMRS symbols in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the first preset time length.

As an embodiment, the indication information is used to determine a position of a first DMRS symbol of the plurality of DMRS symbols on the one slot; the processing unit 610 is further configured to: and determining the position of each DMRS symbol in the plurality of DMRS symbols on the one time slot according to the position of the first DMRS symbol on the one time slot and the first preset time length.

As an embodiment, the indication information is used to determine the number of the plurality of DMRS symbols; the processing unit 610 is further configured to: determining the first preset time length according to the PUSCH transmission time length and the number of the DMRS symbols; or, determining the first preset time duration according to the time duration of the time slot and the number of the DMRS symbols.

As an embodiment, the positions of the plurality of DMRS symbols do not include a first symbol and/or a last symbol in the one slot.

As an embodiment, the second preset duration is equal to zero.

As an embodiment, the first DMRS symbol is any one of the plurality of DMRS symbols other than the first DMRS symbol.

As an embodiment, the processing unit 610 is further configured to: and determining the candidate initial symbol of the first obtained channel usage rights in the plurality of candidate initial symbols included in the PUSCH as the target initial symbol.

As an embodiment, the transceiving unit 620 is further configured to: not transmitting information in the PUSCH from the starting symbol of the PUSCH to the starting symbol of the target on the one slot; and transmitting corresponding information in the PUSCH from the target starting symbol to the ending symbol of the PUSCH in the one slot.

It should be understood that the terminal device 600 according to the embodiment of the present application may correspondingly execute the method 200 in the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 600 are respectively for implementing corresponding flows of the terminal device in each method in fig. 1 to fig. 7, and are not described herein again for brevity.

As shown in fig. 11, a network device 700 according to an embodiment of the present application includes: a processing unit 710 and a transceiver unit 720, specifically, the transceiver unit 720 is configured to: sending scheduling information to terminal equipment, wherein the scheduling information is used for the terminal equipment to determine that a Physical Uplink Shared Channel (PUSCH) is sent in one time slot, and the PUSCH comprises a plurality of demodulation reference signal (DMRS) symbols; the processing unit 710 is configured to determine positions of the plurality of DMRS symbols, and determine a target starting symbol from a plurality of candidate starting symbols included in the PUSCH, where the plurality of candidate starting symbols are determined according to the positions of the plurality of DMRS symbols; the transceiving unit 720 is further configured to: and receiving all or part of the information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the one time slot.

As an embodiment, the transceiving unit 720 is further configured to: and sending indication information to the terminal equipment, wherein the indication information is used for the terminal equipment to determine the positions of the plurality of DMRS symbols in the PUSCH.

As an embodiment, the indication information is used for the terminal device to determine a position of a first DMRS symbol of the plurality of DMRS symbols on the one slot.

As an embodiment, the second preset duration is equal to zero.

As an embodiment, the processing unit 710 is further configured to: and determining a candidate starting symbol corresponding to the first detected DMRS symbol in the plurality of DMRS symbols included in the PUSCH as the target starting symbol.

As an embodiment, the transceiving unit 720 is further configured to: not receiving information in the PUSCH from the starting symbol of the PUSCH to the starting symbol of the target starting symbol on the one slot; and receiving corresponding information in the PUSCH from the target starting symbol to the ending symbol of the PUSCH in the one slot.

It should be understood that the network device 700 according to the embodiment of the present application may correspond to performing the method 300 in the embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 700 are respectively for implementing corresponding flows of the network devices in the methods in fig. 1 to fig. 7, and are not described herein again for brevity.

Fig. 12 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 shown in fig. 12 comprises a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

In one embodiment, as shown in fig. 12, the communication device 800 may also include a memory 820. From the memory 820, the processor 810 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

In one embodiment, as shown in fig. 12, the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 830 may include a transmitter and a receiver, among others. The transceiver 830 may further include one or more antennas.

In an embodiment, the communication device 800 may specifically be a network device in the embodiment of the present application, and the communication device 800 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, no further description is given here.

In an embodiment, the communication device 800 may specifically be a mobile terminal/terminal device according to the embodiment of the present application, and the communication device 800 may implement a corresponding process implemented by the mobile terminal/terminal device in each method according to the embodiment of the present application, and for brevity, details are not described here again.

Fig. 13 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 900 shown in fig. 13 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

In one embodiment, as shown in FIG. 13, chip 900 may also include memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

In one embodiment, the chip 900 may also include an input interface 930. The processor 910 may control the input interface 930 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

In one embodiment, the chip 900 may also include an output interface 940. The processor 910 may control the output interface 940 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

In an embodiment, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, no further description is given here.

In an embodiment, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

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

Fig. 14 is a schematic block diagram of a communication system 1000 according to an embodiment of the present application. As shown in fig. 14, the communication system 1000 includes a terminal device 1010 and a network device 1020.

The terminal device 1010 may be configured to implement corresponding functions implemented by the terminal device in the foregoing method, and the network device 1020 may be configured to implement corresponding functions implemented by the network device in the foregoing method, which is not described herein again for brevity.

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

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

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

In an embodiment, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiments of the present application, which are not described herein again for brevity.

In an embodiment, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

In an embodiment, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions enable a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein again for brevity.

In an embodiment, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

In an embodiment, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, and for brevity, details are not described here again.

In an embodiment, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer executes a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

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 transmitting data, comprising:

determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is transmitted by a first time unit, and the first time unit comprises a plurality of time slots;

transmitting the PUSCH to a network device by the first time unit;

wherein the method further comprises:

determining a target starting symbol from a plurality of candidate starting symbols comprised by the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols;

the sending the PUSCH to the network device by the first time unit includes:

transmitting all or part of the information in the PUSCH to the network device starting from the target starting symbol on the first time unit.

2. The method of claim 1, wherein the determining the position of the plurality of DMRS symbols in the PUSCH comprises:

and determining the positions of the plurality of DMRS symbols in the PUSCH according to the indication information sent by the network equipment.

3. The method of claim 2, wherein a time interval between any two adjacent ones of the plurality of DMRS symbols is equal and equal to a first preset duration.

4. The method of claim 3, wherein the indication information is used to determine a location of a first DMRS symbol of the plurality of DMRS symbols in the PUSCH;

the determining the positions of the plurality of DMRS symbols in the PUSCH according to the indication information sent by the network equipment comprises the following steps:

and determining the position of each DMRS symbol in the plurality of DMRS symbols in the PUSCH according to the position of the first DMRS symbol in the PUSCH and the first preset duration.

5. The method of claim 3, wherein the indication information is used to determine a location of a first DMRS symbol of the plurality of DMRS symbols on the first time unit;

the determining the positions of the plurality of DMRS symbols in the PUSCH according to the indication information sent by the network equipment comprises:

Determining a position of each of the plurality of DMRS symbols on the first time unit based on the position of the first DMRS symbol on the first time unit and the first preset duration.

6. The method according to any one of claims 3 to 5, wherein the indication information is used for determining the first preset duration.

7. The method according to any of claims 3 to 5, wherein the indication information is used for determining the number of the plurality of DMRS symbols; the method further comprises the following steps:

determining the first preset time length according to the PUSCH transmission time length and the number of the DMRS symbols; or,

and determining the first preset time duration according to the time duration of the first time unit and the number of the DMRS symbols.

8. The method of claim 1, wherein the location of the plurality of DMRS symbols excludes the first symbol in the first slot; and/or the presence of a gas in the gas,

the locations of the plurality of DMRS symbols do not include a last symbol in the first slot;

wherein the first time slot is one time slot in the first time unit.

9. The method of claim 1, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

10. The method of claim 1, wherein the plurality of candidate starting symbols are determined from the plurality of DMRS symbols, comprising:

a time interval between a first candidate start symbol of the plurality of candidate start symbols and a corresponding first DMRS symbol of the plurality of DMRS symbols is equal to a second preset duration.

11. The method of claim 10, wherein the second predetermined duration is equal to zero.

12. The method of claim 10 or 11, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

13. The method of claim 10 or 11, wherein the number of the plurality of candidate start symbols is the same as the number of the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

14. The method of claim 1, wherein the determining a target starting symbol from a plurality of candidate starting symbols included in the PUSCH comprises:

Determining a candidate initial symbol, of which a first one of the plurality of candidate initial symbols included in the PUSCH obtains channel usage rights, as the target initial symbol.

15. The method of claim 1, wherein the transmitting all or part of the information in the PUSCH to the network device starting from the target starting symbol on the first time unit comprises:

not transmitting information in the PUSCH from a starting symbol of the PUSCH to a starting symbol of the target starting symbol over the first time unit;

transmitting corresponding information in the PUSCH from the target starting symbol to an ending symbol of the PUSCH over the first time unit.

16. A method of transmitting data, comprising:

sending scheduling information to a terminal device, wherein the scheduling information is used for the terminal device to determine that a Physical Uplink Shared Channel (PUSCH) is sent in a first time unit, wherein the PUSCH comprises a plurality of demodulation reference signal (DMRS) symbols, and the first time unit comprises a plurality of time slots;

determining a location of the plurality of DMRS symbols;

receiving the PUSCH sent by the terminal equipment through the first time unit;

Wherein the method further comprises:

the receiving, by the first time unit, the PUSCH transmitted by the terminal device includes:

receiving all or part of the information in the PUSCH sent by the terminal equipment from the target starting symbol on the first time unit.

17. The method of claim 16, further comprising:

and sending indication information to the terminal equipment, wherein the indication information is used for the terminal equipment to determine the positions of the plurality of DMRS symbols in the PUSCH.

18. The method of claim 17, wherein a time interval between any two adjacent DMRS symbols in the plurality of DMRS symbols is equal and equal to a first preset time duration.

19. The method of claim 18, wherein the indication information is used by the terminal device to determine a location of a first DMRS symbol of the plurality of DMRS symbols in the PUSCH.

20. The method of claim 18, wherein the indication information is used by the terminal device to determine a location of a first one of the plurality of DMRS symbols on the first time unit.

21. The method according to any one of claims 18 to 20, wherein the indication information is used for the terminal device to determine the first preset duration.

22. The method of any of claims 18 to 20, wherein the indication information is used by the terminal device to determine the number of the plurality of DMRS symbols.

23. The method according to any of claims 18 to 20, wherein the first preset time period is determined according to a moving speed of the terminal device or a subcarrier interval corresponding to the PUSCH.

24. The method of claim 16, wherein the location of the plurality of DMRS symbols does not include a first symbol in a first slot; and/or the presence of a gas in the atmosphere,

wherein the first time slot is one time slot in the first time unit.

25. The method of claim 16, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

26. The method of claim 16, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols, comprising:

27. The method of claim 26, wherein the second predetermined duration is equal to zero.

28. The method of claim 26 or 27, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

29. The method of claim 26, wherein a number of the plurality of candidate start symbols is the same as a number of the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

30. The method of claim 16, wherein the determining a target starting symbol from a plurality of candidate starting symbols included in the PUSCH comprises:

and determining a candidate starting symbol corresponding to the first detected DMRS symbol in the plurality of DMRS symbols included in the PUSCH as the target starting symbol.

31. The method of claim 16, wherein the receiving all or part of the information in the PUSCH transmitted by the terminal device starting from the target starting symbol in the first time unit comprises:

not receiving information in the PUSCH from a starting symbol of the PUSCH to a starting symbol of the target starting symbol on the first time unit;

receiving corresponding information in the PUSCH from the target starting symbol until an ending symbol of the PUSCH over the first time unit.

32. A method of transmitting data, comprising:

determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH is transmitted through one time slot;

and transmitting all or part of information in the PUSCH to a network device from the target starting symbol on the one slot.

33. The method of claim 32, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

34. The method of claim 32 or 33, wherein the plurality of candidate starting symbols are determined according to the positions of the plurality of DMRS symbols, comprising:

35. The method of claim 34, wherein the second predetermined duration is equal to zero.

36. The method of claim 34, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

37. The method of claim 34, wherein the plurality of candidate start symbols is equal in number to the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

38. A method of transmitting data, comprising:

sending scheduling information to terminal equipment, wherein the scheduling information is used for the terminal equipment to determine that a Physical Uplink Shared Channel (PUSCH) is sent in one time slot, and the PUSCH comprises a plurality of demodulation reference signal (DMRS) symbols;

Determining locations of the plurality of DMRS symbols;

and receiving all or part of information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the one time slot.

39. The method of claim 38, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

40. The method of claim 38 or 39, wherein the plurality of candidate starting symbols are determined from the plurality of DMRS symbols, comprising:

41. The method of claim 40, wherein the second predetermined duration is equal to zero.

42. The method of claim 40, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

43. The method of claim 40, wherein a number of the plurality of candidate start symbols is the same as a number of the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

44. A terminal device, comprising:

the device comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), the PUSCH is transmitted through a first time unit, and the first time unit comprises a plurality of time slots;

a transceiving unit, configured to transmit the PUSCH to a network device by using the first time unit;

wherein the processing unit is further configured to:

the transceiver unit is further configured to:

45. The terminal device of claim 44, wherein the processing unit is further configured to:

46. The terminal device of claim 45, wherein a time interval between any two adjacent ones of the plurality of DMRS symbols is equal and equal to a first preset duration.

47. The terminal device of claim 46, wherein the indication information is used to determine a location of a first DMRS symbol of the plurality of DMRS symbols in the PUSCH;

the processing unit is further to:

48. The terminal device of claim 46, wherein the indication information is used to determine a location of a first one of the plurality of DMRS symbols on the first time unit;

the processing unit is further to:

determining a position of each of the plurality of DMRS symbols on the first time unit according to the position of the first DMRS symbol on the first time unit and the first preset time duration.

49. The terminal device according to any one of claims 46 to 48, wherein the indication information is used for determining the first preset duration.

50. The terminal device of any of claims 46 to 48, wherein the indication information is used to determine the number of the plurality of DMRS symbols; the processing unit is further to:

51. The terminal device of claim 44, wherein the location of the plurality of DMRS symbols excludes the first symbol in the first slot; and/or the presence of a gas in the gas,

wherein the first time slot is one time slot in the first time unit.

52. The terminal device of claim 44, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

53. The terminal device of claim 44, wherein the plurality of candidate starting symbols are determined from the plurality of DMRS symbols, comprising:

54. The terminal device of claim 53, wherein the second predetermined duration is equal to zero.

55. The terminal device of claim 53 or 54, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

56. The terminal device of claim 53, wherein the plurality of candidate start symbols is equal in number to the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

57. The terminal device of claim 44, wherein the processing unit is further configured to:

58. The terminal device of claim 44, wherein the transceiver unit is further configured to:

Not transmitting information in the PUSCH from a starting symbol of the PUSCH to a starting symbol of the target starting symbol on the first time unit;

59. A network device, comprising:

a transceiver unit, configured to send scheduling information to a terminal device, where the scheduling information is used for the terminal device to determine to send a physical uplink shared channel, PUSCH, on a first time unit, where the PUSCH includes multiple demodulation reference signal, DMRS, symbols, and the first time unit includes multiple slots;

a processing unit to determine locations of the plurality of DMRS symbols;

the transceiver unit is further configured to: receiving the PUSCH sent by the terminal equipment through the first time unit;

wherein the processing unit is further to:

the transceiver unit is further configured to:

Receiving all or part of information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the first time unit.

60. The network device of claim 59, wherein the transceiver unit is further configured to:

61. The network device of claim 60, wherein a time interval between any two adjacent ones of the plurality of DMRS symbols is equal and equal to a first preset duration.

62. The network device of claim 61, wherein the indication information is used by the terminal device to determine a location of a first one of the plurality of DMRS symbols in the PUSCH.

63. The network device of claim 61, wherein the indication information is used by the terminal device to determine a location of a first one of the plurality of DMRS symbols on the first time unit.

64. The network device according to any one of claims 61 to 63, wherein the indication information is used for the terminal device to determine the first preset duration.

65. The network device of any one of claims 61 to 63, wherein the indication information is used by the terminal device to determine the number of the plurality of DMRS symbols.

66. The network device according to any one of claims 61 to 63, wherein the first preset duration is determined according to a moving speed of the terminal device or a subcarrier interval corresponding to the PUSCH.

67. The network device of claim 59, wherein the location of the plurality of DMRS symbols excludes the first symbol in the first slot; and/or the presence of a gas in the gas,

wherein the first time slot is one time slot in the first time unit.

68. The network device of claim 59, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

69. The network device of claim 59, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols, comprising:

70. The network device of claim 69, wherein the second predetermined duration is equal to zero.

71. The network device of claim 69 or 70, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

72. The network device of claim 69, wherein the plurality of candidate start symbols is equal in number to the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

73. The network device of claim 59, wherein the processing unit is further configured to:

74. The network device of claim 59, wherein the transceiver unit is further configured to:

not receiving information in the PUSCH from a starting symbol of the PUSCH to a starting symbol of the target starting symbol over the first time unit;

75. A terminal device, comprising:

the processing unit is used for determining the positions of a plurality of demodulation reference signal (DMRS) symbols in a Physical Uplink Shared Channel (PUSCH), and the PUSCH is transmitted through one time slot;

the processing unit is further to: determining a target starting symbol from a plurality of candidate starting symbols comprised by the PUSCH, wherein the plurality of candidate starting symbols are determined according to positions of the plurality of DMRS symbols;

a transceiving unit, configured to send all or part of the information in the PUSCH to a network device starting from the target starting symbol in the one slot.

76. The terminal device of claim 75, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

77. The terminal device of claim 75 or 76, wherein the plurality of candidate starting symbols are determined from the positions of the plurality of DMRS symbols, comprising:

78. The terminal device of claim 77, wherein the second predetermined duration is equal to zero.

79. The terminal device of claim 77, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

80. The terminal device of claim 77, wherein the plurality of candidate start symbols is equal in number to the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

81. A network device, comprising:

a transceiver unit, configured to send scheduling information to a terminal device, where the scheduling information is used for the terminal device to determine to send a physical uplink shared channel, PUSCH, in one slot, and the PUSCH includes multiple demodulation reference signal, DMRS, symbols;

a processing unit to determine locations of the plurality of DMRS symbols;

The transceiver unit is further configured to: and receiving all or part of information in the PUSCH transmitted by the terminal equipment from the target starting symbol on the one time slot.

82. The network device of claim 81, wherein the plurality of candidate starting symbols comprises a starting symbol of the PUSCH.

83. The network device of claim 81 or 82, wherein the plurality of candidate starting symbols are determined from the plurality of DMRS symbols, comprising:

84. The network device of claim 83, wherein the second predetermined duration is equal to zero.

85. The network device of claim 83, wherein the first DMRS symbol is one of the plurality of DMRS symbols other than the first DMRS symbol.

86. The network device of claim 83, wherein a number of the plurality of candidate start symbols is the same as a number of the plurality of DMRS symbols, wherein no other DMRS symbols are included between the first candidate start symbol and the first DMRS symbol, and wherein the other DMRS symbols are symbols of the plurality of DMRS symbols other than the first DMRS symbol.

87. A terminal device, comprising: a processor and a memory, the memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any of claims 1-15, 32-37.

88. A network device, comprising: a processor and a memory, the memory for storing a computer program, the processor for calling and executing the computer program stored in the memory, performing the method of any of claims 16 to 31, 38 to 43.

89. A chip, comprising: a processor for calling and running a computer program from a memory so that a device in which the chip is installed performs the method of transmitting data according to any one of claims 1 to 15, 32 to 37.

90. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of transmitting data according to any one of claims 16 to 31, 38 to 43.

91. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 15, 32 to 37.

92. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 16 to 31, 38 to 43.