CN108365879B

CN108365879B - Data sending method and device and data receiving method and device

Info

Publication number: CN108365879B
Application number: CN201710061827.7A
Authority: CN
Inventors: 吕永霞; 大卫·简-玛丽·马瑞泽; 马蕊香
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2021-07-16
Anticipated expiration: 2037-01-26
Also published as: CN108365879A; WO2018137569A1

Abstract

The embodiment of the invention provides a method and a device for sending data. The method comprises the steps that a terminal device receives downlink control information from a network device on a first time unit, wherein the downlink control information comprises first indication information, the first indication information indicates a second time unit, the first time unit and the second time unit are located in a first time period, the first time period comprises a first time unit set and a second time unit set, the first time unit belongs to the first time unit set, and the second time unit belongs to the second time unit set. The terminal equipment receives data from the network equipment in the first time unit and the second time unit indicated by the first indication information.

Description

Data sending method and device and data receiving method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a data sending method and apparatus and a data receiving method and apparatus.

Background

Mobile communication has been deeply changing people's lives, but the pursuit of higher performance mobile communication has never been stopped. In order to cope with the explosive mobile data traffic increase, massive device connection, and various new services and application scenarios which are continuously emerging in the future, a fifth generation mobile communication (5th generation, 5G) communication system will be developed.

The 5G communication system will support multiple service types, different deployment scenarios and a wider spectrum range. The multiple Service types include enhanced Mobile Broadband (eMBB), mass Machine Type Communication (mtc), ultra-reliable and low latency Communication (URLLC), Multimedia Broadcast Multicast Service (MBMS), and positioning Service, etc. Different deployment scenes comprise indoor hot spots (indoor hotspots), dense Urban areas (dense Urban areas), suburban areas, Urban Macro coverage (Urban Macro), high-speed rail scenes and the like. The wider spectral range means that a 5G communication system will support a frequency band range of 100GHz, which includes both low frequency portions below 6GHz and high frequency portions above 6GHz up to 100 GHz.

For high frequency deployment scenarios above 6GHz, some special aspects of system design need to be considered.

First, compared with low-frequency signals, radio signals have a large propagation loss at high frequencies, and how to compensate the propagation path loss of high-frequency radio signals is an important factor to be considered in system design. An alternative solution is to use massive-MIMO (massive-MIMO). The size of each antenna element of the high-frequency wireless signal can be greatly reduced, so that more antenna numbers can be supported on the same antenna area, a large-scale antenna technology and a high-frequency deployment scene can be well combined together, and coverage can be effectively enhanced by utilizing a multi-antenna beam forming (beamforming) technology.

Secondly, the propagation characteristics of the radio signal at high frequencies are very different from the propagation characteristics at low frequencies. The ability of the wireless signal to scatter and diffract becomes weaker as the wavelength decreases, and the penetration loss increases relatively. Therefore, the high-frequency signal propagation is greatly affected by the occlusion, and the line-of-sight propagation becomes the main propagation method of the high-frequency signal. This means that the macro cell coverage using high frequency signals is more challenging, so the typical deployment scenario for high frequencies is indoor or hot spot coverage.

Thirdly, the delay spread of the high-frequency wireless signal is relatively small, which is mainly caused by relying on line-of-sight propagation, and moreover, the use of large-scale antenna technology also has an influence on the delay spread of the channel. Because the time delay expansion of the channel is reduced, the frequency selective fading of the channel is correspondingly reduced, the gain of adopting frequency selective scheduling is also correspondingly reduced, and a time division scheduling mode can be adopted for the service insensitive to the time delay.

In addition, the high Frequency wireless signals are greatly affected by doppler (doppler) Frequency shift and phase noise, and these effects need to be considered when the system is designed to select physical layer parameters, such as subcarrier spacing adopted by an Orthogonal Frequency Division Multiplexing (OFDM) system, and time-Frequency position of a demodulation reference signal.

As described above, the large-scale antenna technology is widely applied in the high-frequency scene, wherein the core technology is the beamforming technology. The beamforming technique may specifically include: analog beamforming, digital beamforming, and hybrid beamforming. The combination of beamforming technology and high frequency will bring great changes to the system design, including the design of synchronization channel, broadcast channel, downlink control channel and data channel, which need to be considered again. One of the most fundamental problems is that since the wireless signals have special propagation characteristics and large penetration loss in high frequency band, the network devices cannot provide good coverage all around at a certain time, which includes both the broadcast signals and the dedicated signals of the user devices. Therefore, the coverage of the signal will depend on beam sweeping (beam sweeping) techniques. That is, at a certain time, the coverage of the network can only serve the user equipment under a certain beam or a few beams depending on the beamforming. After the beam scanning technique is adopted, the scheduling policy of the network device tends to allocate the whole frequency band resource to a limited number of user equipments at a certain time. One extreme case is to schedule only one user at a time, i.e. in a time-division scheduling manner. In this case, the control channel design and listening mechanism design of the ue, and the scheduling policy of the ue may have a large impact on the performance of the whole system.

Disclosure of Invention

The embodiment of the invention provides a data sending method and device and a data receiving method and device, and aims to provide a data scheduling scheme capable of being applied to a high-frequency scene.

In a first aspect, a data receiving method is provided, including:

the method comprises the steps that a terminal device receives downlink control information from a network device on a first time unit, wherein the first time unit and a second time unit are located in a first time period, the first time period comprises a first time unit set and a second time unit set, the first time unit belongs to the first time unit set, and the second time unit belongs to the second time unit set; and

the terminal equipment receives data from the network equipment in the first time unit and the second time unit indicated by the first indication information.

Optionally, the downlink control information includes first indication information, and the first indication information indicates the second time unit.

In a second aspect, a data transmission method is provided, including:

the method comprises the steps that a network device sends downlink control information to a terminal device on a first time unit, wherein the first time unit and a second time unit are located in a first time period, the first time period comprises a first time unit set and a second time unit set, the first time unit belongs to the first time unit set, and the second time unit belongs to the second time unit set; and

and the network equipment sends data to the terminal equipment in the first time unit and the second time unit indicated by the first indication information.

Optionally, the time unit may be an OFDM symbol or a symbol.

For a high-frequency deployment scenario, because data sent to the same terminal device is carried in the first time unit and the second time unit, the terminal device can monitor the control channel in some pre-configured time units and indicate symbols carrying the data channel, and the design of separating the time units sending the control information and the data can be kept consistent with the design of the control signaling based on the time slot as much as possible.

Optionally, the first indication information is a bitmap, and the bitmap indicates the second time unit. The advantage of using the bitmap is that the length of the DCI can be the same no matter how many time units the second time unit includes, thereby reducing the number of blind detections.

Optionally, the bitmap further indicates the first time unit.

In this case, the length of the bitmap and the number of time units included in the first time period may be the same.

Optionally, the data sent by the network device in the first time unit and the second time unit correspond to the same transport block. Correspondingly, the data received by the terminal device in the first time unit and the second time unit correspond to the same transmission block.

Optionally, the first time unit and the second time unit are not consecutive in time.

The first time unit and the second time unit are discontinuous in time, and the data received in the first time unit and the second time unit correspond to the same transmission block, so that a time discontinuous mini-slot is formed, and the network equipment can schedule the data of the same transmission block to the discontinuous time units, thereby realizing flexible data scheduling.

Optionally, before the terminal device receives the downlink control information, the method further includes: the terminal device receives first signaling from the network device, wherein the first signaling indicates a location of the first set of time units in the first time period.

Correspondingly, before the network device sends the downlink control information to the terminal device, the method further includes:

the network device sends a first signaling to the terminal device, wherein the first signaling indicates a position of the first time unit set in the first time period.

Optionally, before the terminal device receives the downlink control information, the method further includes: and the terminal device receives a second signaling from the network device, wherein the second signaling indicates a position of a third time unit set in the first time period, and a time unit included in the third time unit set is a time unit which can be used for sending downlink control information.

and the network equipment sends the second signaling to the terminal equipment.

The third set of time units may be the same as the first set of time units, or the first set of time units may be a subset of the third set of time units. In the case that the first time unit set is a subset of the third time unit set, the network device can schedule the data to be transmitted in the control region, and therefore, in a scenario where the number of terminal devices is small and the amount of data is large, more data can be transmitted for the terminal devices. And, the network device need not transmit data on each time unit of the third set of time units, thereby reducing signaling overhead.

Optionally, before the terminal device receives the downlink control information, the method further includes: the terminal device determines beam information corresponding to a first time unit, wherein the beam information is information of a transmission beam in the first time unit; wherein, the receiving, by the terminal device, the downlink control information includes: the terminal device receives the downlink control information from the network device based on the beam information over the first time unit.

Correspondingly, before the network device sends the downlink control information to the terminal device, the method further includes: the network device determines beam information corresponding to the first time unit, wherein the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

the network device sends downlink control information to the terminal device, including: and the network equipment sends the downlink control information to the terminal equipment on the basis of the beam information in the first time unit.

In this optional embodiment, the downlink control information is only sent in a part of the time unit of the first time period, and the time unit where the downlink control information is located adopts beamforming, so that coverage of the control channel can be ensured.

Optionally, the downlink control information further includes second indication information, where the second indication information indicates beam information in the second time unit, where,

the terminal device receives data from the network device, including:

the terminal device receives the data from the network device in the first time unit based on the beam information indicated by the first indication information and the beam information indicated by the second indication information in the second time unit.

Correspondingly, the sending, by the network device, data to the terminal device includes:

and the network device transmits the data to the terminal device by using the beam corresponding to the beam information indicated by the first indication information in the first time unit and the beam corresponding to the beam information indicated by the second indication information in the second time unit.

Optionally, the receiving, by the terminal device, data from the network device includes:

the terminal device receives data from the network device in the first time unit and the second time unit indicated by the first indication information based on the beam information.

and the network equipment sends the data to the terminal equipment in the first time unit and the second time unit indicated by the first indication information based on the beam corresponding to the beam information.

In this way, the first time unit and the second time unit may employ the same beam.

Optionally, before the terminal device determines the beam information corresponding to the first time unit, the method further includes:

the terminal device measures the received signal strength of the network device on a predefined transmission beam; and

and the terminal equipment sends the received signal strength information of the sending wave beam and the identification information of the wave beam to the network equipment.

Optionally, the beam information is an identifier of the transmission beam, and before the terminal device determines the beam information corresponding to the first time unit, the method further includes:

the terminal device receives a second signaling from the network device, the second signaling indicating an identity of the transmit beam.

Optionally, before the network device determines the beam information corresponding to the first time unit, the method further includes:

the network equipment transmits a reference signal on a predefined transmission beam; and

the network device receives the reception signal strength information of the transmission beam and the identification information of the beam from the terminal device.

And the network equipment determines the beam information corresponding to the first time unit according to the received signal strength information and the identification information of the beam.

Optionally, the beam information is an identifier of the transmission beam;

after the network device determines the beam information corresponding to the first time unit, the method further includes:

and the network equipment sends a second signaling to the terminal equipment, wherein the second signaling indicates the identification of the sending beam.

In a third aspect, a network device is provided for executing the method of the network device, and in particular, the network device may include a module for executing corresponding steps of the network device. Such as a processing module, a sending module, a receiving module, etc.

In a fourth aspect, a terminal device is provided, which is a method for the terminal device, and in particular, the terminal device may include a module for executing corresponding steps of the terminal device. Such as a processing module, a sending module, a receiving module, etc.

In a fifth aspect, a network device is provided, which comprises a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that the network device performs the method of the network device.

In a sixth aspect, a terminal device is provided, which comprises a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that the terminal device executes the method of the terminal device.

In a seventh aspect, a computer-readable storage medium is provided, having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the above aspects.

In an eighth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

Fig. 1 is a diagram of a wireless communication system according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a network device in the wireless communication system.

Fig. 3 is a schematic structural diagram of a terminal device in the wireless communication system.

Fig. 4 is a frame structure diagram according to an embodiment of the present invention.

Fig. 5 is a diagram illustrating data transmission interaction in the method according to the embodiment of the present invention.

Fig. 6 is a diagram illustrating a first timeslot structure applied to an embodiment of the invention.

Fig. 7 is a diagram showing a second slot structure applied to the embodiment of the present invention.

Fig. 8 is a diagram illustrating a relationship between beams of a reference signal and predefined positions according to an embodiment of the present invention.

Fig. 9 is a schematic block diagram of a terminal device 900 according to an embodiment of the present invention.

Fig. 10 shows a schematic block diagram of a network device 1000 of an embodiment of the invention.

Detailed Description

It should be understood that embodiments of the present invention may be applied to various communication systems, such as: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, an advanced long term evolution (LTE-a) system, a Universal Mobile Telecommunications System (UMTS), or a next-generation communication system, such as a 5G system.

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.

The embodiments of the present invention have described various embodiments in combination with a sending device and a receiving device, where the sending device may be one of a network device and a terminal device, and the receiving device may be the other of the network device and the terminal device, for example, in the embodiments of the present invention, the sending device may be a network device, and the receiving device may be a terminal device; alternatively, the transmitting device may be a terminal device, and the receiving device may be a network device.

A terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user Equipment. The terminal device may be a Station (STA) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in a fifth-generation (5G) communication network or a terminal device in a future-evolution Public Land Mobile Network (PLMN) network, and the like.

As an example, in the embodiment of the present invention, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

The network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB, or eNodeB) in LTE, a relay Station or an access point, or a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network.

In addition, in the embodiment of the present invention, the network device provides a service for a cell, and the terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

The method and the device provided by the embodiment of the invention can be applied to terminal equipment or network equipment, and the terminal equipment or the network equipment comprises a hardware layer, an operating system layer running on the hardware layer and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. In the embodiment of the present invention, a specific structure of an execution main body of a method for transmitting a signal is not particularly limited in the embodiment of the present invention, as long as the execution main body can perform communication by the method for transmitting a signal according to the embodiment of the present invention by running a program in which a code of the method for transmitting a signal of the embodiment of the present invention is recorded, for example, the execution main body of the method for wireless communication of the embodiment of the present invention may be a terminal device or a network device, or a functional module capable of calling a program and executing the program in the terminal device or the network device.

Moreover, various aspects or features of embodiments of the invention may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

In the present discussion, one common recognition is that the concept of mini-slot can be applied in the context of large bandwidth scheduling in high frequency systems, i.e. scheduling strategies tend to be less time-granular. However, there is no established scheme for how to perform data scheduling based on mini-slots. In addition, there is no definite scheme for how to monitor the downlink control channel based on the mini-slot.

In view of the above problems, embodiments of the present invention provide a data sending method and a data receiving method, and corresponding network devices and terminal devices.

Fig. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present invention. As shown in fig. 1, the wireless communication system 100 includes a network device 102, and the network device 102 may include 1 antenna or multiple antennas, e.g.,

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art.

Network device 102 may communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it is understood that network device 102 may communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.

End devices

116 and 122 may be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100.

As shown in fig. 1, terminal device 116 is in communication with

antennas

112 and 114, where

antennas

112 and 114 transmit information to terminal device 116 over a forward link (also called a downlink) 118 and receive information from terminal device 116 over a reverse link (also called an uplink) 120. In addition, terminal device 122 is in communication with

antennas

104 and 106, where

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

In a Frequency Division Duplex (FDD) system, forward link 118 may utilize a different frequency band than reverse link 120, and forward link 124 may employ a different frequency band than reverse link 126, for example.

As another example, in Time Division Duplex (TDD) systems, full duplex (full duplex) systems, and flex duplex systems, forward link 118 and reverse link 120 may utilize a common frequency band and forward link 124 and reverse link 126 may utilize a common frequency band.

Each antenna (or group of antennas consisting of multiple antennas) and/or area designed for communication is referred to as a sector of network device 102. For example, antenna groups may be designed to communicate to terminal devices in a sector of the areas covered by network device 102. A network device may transmit signals to all terminal devices in its corresponding sector through single-antenna or multi-antenna transmit diversity. During communication by network device 102 with

terminal devices

116 and 122 over forward links 118 and 124, respectively, the transmitting antennas of network device 102 may also utilize beamforming to improve signal-to-noise ratio of forward links 118 and 124. Moreover, mobile devices in neighboring cells can experience less interference when network device 102 utilizes beamforming to transmit to

terminal devices

116 and 122 scattered randomly through an associated coverage area, as compared to a manner in which the network device transmits signals to all of its terminal devices through single-antenna or multi-antenna transmit diversity.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting apparatus and/or a wireless communication receiving apparatus. When sending data, the wireless communication sending device may encode the data for transmission. Specifically, the wireless communication transmitting device may obtain (e.g., generate, receive from other communication devices, or save in memory, etc.) a number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to produce multiple code blocks.

In addition, the communication system 100 may be a PLMN network, a D2D network, an M2M network, or other networks, and fig. 1 is a simplified schematic diagram for example, and other network devices may be included in the network, which are not shown in fig. 1.

Fig. 2 is a schematic structural diagram of a network device in the wireless communication system. The network device can execute the data transmission method provided by the embodiment of the invention. Wherein, this network equipment includes: a processor 201, a receiver 202, a transmitter 203, and a memory 204. Wherein the processor 201 may be communicatively coupled to the receiver 202 and the transmitter 203. The memory 204 may be used to store program codes and data for the network device. Therefore, the memory 204 may be a storage unit inside the processor 201, may be an external storage unit independent of the processor 201, or may be a component including a storage unit inside the processor 201 and an external storage unit independent of the processor 201.

Optionally, the network device may also include a bus 205. Wherein the receiver 202, the transmitter 203, and the memory 204 may be connected to the processor 201 through a bus 205; the bus 205 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 205 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.

The Processor 201 may be, for example, a Central Processing Unit (CPU), a general purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.

The receiver 202 and the transmitter 203 may be circuits including the antenna and the transmitter and receiver chains, which may be separate circuits or the same circuit.

Fig. 3 is a schematic structural diagram of a terminal device in the wireless communication system. The terminal device and the network device can execute the data receiving method provided by the embodiment of the invention. The terminal device may include a processor 301, a receiver 302, a transmitter 303, and a memory 304. Optionally, the processor 301 may be communicatively coupled to a receiver 302 and a transmitter 303. Alternatively, the terminal device may further include a bus 305, and the receiver 302, the transmitter 303, and the memory 304 may be connected to the processor 301 through the bus 305. The bus 305 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 305 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 3, but this does not mean only one bus or one type of bus.

Accordingly, the memory 304 may be used for storing program codes and data of the terminal device. Therefore, the memory 304 may be a storage unit inside the processor 301, may be an external storage unit independent of the processor 301, or may be a component including a storage unit inside the processor 301 and an external storage unit independent of the processor 201. The receiver 302 and the transmitter 303 may be separate circuits or may be the same circuit.

The communication between the network device and the terminal device is realized on time-frequency resources. The time-frequency resource in the embodiment of the invention can be a high-frequency resource larger than 6GHz, and can also be applied to a low-frequency resource smaller than or equal to 6 GHz. Fig. 4 is a frame structure diagram according to an embodiment of the present invention. In the time domain, as shown in fig. 4, 1 radio frame is 10 milliseconds (ms), and is composed of 10 subframes. Each subframe is 1 ms. Here, different subcarrier spaces (SBS) correspond to different slot lengths, and thus, one subframe may include 1 or more slots (slots), and each slot may be composed of 7 or 14 OFDM symbols. One slot may contain 7 or 14 OFDM symbols for carriers less than or equal to 60kHz subcarrier spacing, and 14 OFDM symbols for subcarriers spaced above 60 kHz. For example, when a subcarrier interval is 15kHz and one slot is composed of 7 OFDM symbols, one subframe is composed of 2 slots. When the subcarrier spacing is 30kHz, one slot consists of 7 OFDM symbols and one subframe consists of 4 slots. Therefore, in the case of different subcarrier intervals, the number of slots included in one subframe differs depending on the number of OFDM symbols included in each slot. The embodiment of the present invention is not limited to the number of slots included in a subframe, and can be applied to any subframe format.

In an embodiment of the present invention, the first time period includes a first time unit set and a second time unit set. Wherein the first set of time units includes one or more time units and the second set of time units includes one or more time units. For example, in an OFDM system, one time unit may be one OFDM symbol, or may be at least two OFDM symbols. The first set of time units may be the first OFDM symbol or the first few OFDM symbols in the first time period. The OFDM symbols (hereinafter simply referred to as symbols) in the first period excluding the second time unit set constitute the second time unit. The first time period may be one subframe, also starting at least two subframes.

The method of the embodiment of the present invention is specifically described below. Fig. 5 is a diagram illustrating data transmission interaction in the method according to the embodiment of the present invention. As shown in fig. 5, the method includes the following steps. It should be noted that the dotted lines in fig. 5 indicate that the corresponding steps are optional steps.

Step 500: the terminal device receives a first signaling from the network device, and correspondingly, the terminal device receives the first signaling from the network device. The first signaling indicates a location of a first set of time units in a first time period.

This step is optional, and the network device may not send the first signaling, so that the location of the first time unit set in the first time period may be predefined.

The first signaling may be signaling specific to the terminal device, i.e., signaling specific to the terminal device. E.g., may be higher layer signaling or physical layer signaling. The terminal device specific signaling in the embodiments of the present invention may be defined as such.

Optionally, before step 500, the embodiment of the present invention may further include: the terminal device receives a second signaling from the network device, and correspondingly, the terminal device receives the second signaling from the network device. The second signaling indicates a location of a third set of time units in the first time period. The first set of time units may be the same as the third set of time units, or the first set of time units may be a subset of the third set of time units.

This third set of time units may also be referred to as a control region. Thus, the control region may be the first several symbols of one subframe, or the first several symbols of at least two subframes. The control region is used for sending downlink control signaling, and the control signaling is used for scheduling a data channel. That is, the control signaling sent by the network device is located within the symbol of the control region.

The second signaling may indicate a specific value, and the terminal device may determine the size of the control region as the first symbols of one subframe or the first symbols of at least two subframes according to the specific value.

And if the terminal equipment does not receive the first signaling, the terminal equipment detects the control signaling on the symbols contained in the control region in a blind mode. And if the terminal equipment receives the first signaling, the terminal equipment detects the control signaling on the symbols contained in the first time unit set in a blind mode.

Optionally, in this step, the transmitter 203 of the network device in fig. 3 may perform the sending action, and the receiver 302 of the terminal device in fig. 4 may perform the receiving action.

Further, in this step, the processor 201, which may be a network device, instructs the transmitter 203 to transmit. After the receiver 302 receives the first signaling, the processor 301 may obtain information in the first signaling.

Step 502: the network device sends the downlink control information to the terminal device in the first time unit, and correspondingly, the terminal device receives the downlink control information from the network device in the first time unit. Wherein the first time unit and the second time unit are located within a first time period, the first time period comprising a first time unit set and a second time unit set, wherein the first time unit belongs to the first time unit set and the second time unit belongs to the second time unit set.

In this embodiment, the first time unit and the second time unit may not be continuous in time, but may be continuous in some special cases. In the embodiment of the present invention, a time unit formed by the first time unit and the second time unit may be referred to as a mini-slot. The discontinuous design can flexibly schedule data transmission, and meanwhile, because the downlink control information is sent on a part of time units, the design is consistent with the slot-based design as much as possible.

It should be noted that the second time unit in this embodiment may be one or more time units in the second time set, and the embodiment of the present invention does not limit that the second time unit is only one time unit. Similarly, the first time unit may also be one or more time units in the first time unit set, and the embodiment of the present invention does not limit that the first time unit is only one time unit. The drawings in the embodiments of the present invention are all described with one time unit as an example.

In this embodiment, the third time unit set is the same as the first time unit set or the first time unit set is a subset of the third time unit set. That is, the number of time units actually used by the network device to transmit the control channel may be less than the number of time units that the network device is configured to be able to use to transmit the control channel.

When the first time unit set is a subset of the third time unit set, data can be scheduled in the control region, and therefore, in a scenario where the number of terminal devices is small and the amount of data is large, more data can be transmitted for the terminal devices.

It should be noted that, in the embodiment of the present invention, the resource location of the downlink control information in the first time unit is not limited. The frequency domain position with the smaller number in the first time unit may be, or the middle position in the whole bandwidth or the frequency domain position with the larger number may be. Moreover, the downlink control information may also be dispersed at discontinuous frequency domain positions.

Fig. 6 is a diagram illustrating a first timeslot structure applied to an embodiment of the invention. It should be noted that the time unit in fig. 6 may be a symbol, and fig. 6 is only illustrated by an example that one subframe includes 8 symbols, but the embodiment of the present invention is not limited thereto, and the number of symbols included in one subframe may refer to the description above.

The first set of time units shown in fig. 6 consists of the first two symbols, the third time unit consists of the first four symbols, and the second time unit consists of the other symbols in the subframe except the first 2 symbols. It can thus be seen that the first set of time units in this example is a subset of the third set of time units. In this way, the network device may transmit data over symbols not included in the first set of time units in the third set of time units. For example, in fig. 6, the network device transmits control information to terminal device 1 (denoted as UE1) on symbol 1, the control information indicating symbol 3 and symbol 4, so that terminal device 1 receives data transmitted by the network device on symbol 1, symbol 3 and symbol 4. The network device sends control information to terminal device 2 (denoted UE2) on symbol 2 indicating symbol 5 through symbol 8, so that terminal device 2 receives data sent by the network device on symbol 2, and symbols 4 through 8. In this example, the second time unit corresponding to the terminal device 1 includes 2 time units.

Optionally, the terminal device may receive the downlink control information from the network device in the first time unit in a manner of blind detection in each time unit included in the first time unit set.

Further, the terminal device may perform blind detection one by one in one or more time units included in the first time unit set until the downlink control information obtained by correct decoding in the first time unit stops. For example, if the first time unit is the first time unit (#1 time unit) in the first time unit set, the terminal device decodes correctly in the #1 time unit to obtain the downlink control information, and the terminal device does not continue to perform blind detection on other time units included in the first time unit set.

Or, the terminal device may perform blind detection by traversing each time unit included in the first time unit set, so as to correctly decode the downlink control information in the first time unit. For example, if the first time unit is the first time unit (#1 time unit) in the first time unit set, the terminal device decodes correctly in the #1 time unit to obtain the downlink control information, and the terminal device continues to perform blind detection in other time units included in the first time unit set.

Optionally, the first indication information may be an identifier of the second time unit. Thus, in the example of fig. 6, the first indication information included in the downlink control information sent by the network device to the terminal device 1 is the identifier of the symbol 3 and the symbol 4. Further, the first indication information may also indicate an identity of the first time unit. For example, the first indication information included in the downlink control information sent by the network device to the terminal device 1 further includes the identifier of the symbol 1. And if the first indication information does not indicate the identifier of the first time unit, the terminal device defaults that the symbol where the downlink control information is located carries data for sending the terminal device. The advantage of this method is that the indication information can flexibly indicate the second time unit, but if the second time unit includes a larger number of time units, overhead is wasted, the length of the DCI is different, and the blind detection times are increased.

Alternatively, the first indication information may be a bitmap. The length of the bitmap may be the same as the number of time units included in the first time period, and this way can accurately indicate the time unit of the downlink control information scheduling carrying the first indication information. Or, the length of the bitmap may be the same as the number of time units included in the second time unit set in the first time period, and in this way, the length of the bitmap is reduced, so that the signaling overhead can be reduced.

The advantage of using the bitmap is that the DCI length is the same regardless of the number of time units included in the second time unit, thereby reducing the number of blind detections.

The description will be made by taking the example shown in fig. 6 as an example. When the length of the bitmap is the same as the number of time units included in the first time period, the bitmap included in the downlink control information transmitted to terminal device 1 is "00110000", and the bitmap included in the downlink control information transmitted to terminal device 2 is "00001111". When the length of the bitmap is the same as the number of time units included in the second time unit set in the first time slot, the bitmap included in the downlink control information transmitted to terminal device 1 is "110000", and the bitmap included in the downlink control information transmitted to terminal device 2 is "001111".

Fig. 7 is a diagram showing a second slot structure applied to the embodiment of the present invention. In this example, the first set of time units includes the first 4 symbols and the second set of time units includes other symbols in the time period other than the first 4 symbols. The network device sends downlink control information to the terminal device 1, the terminal device 2, the terminal device 3, and the terminal device 4 on 4 symbols in the first time unit set, respectively. Downlink control information indicator 5 of terminal device 1, downlink control information indicator 6 of terminal device 2, downlink control information indicator 7 of terminal device 3, and downlink control information indicator 8 of terminal device 4. In this way, when the length of the bitmap is the same as the number of time units included in the first time period, the bitmap included in the downlink control information sent to terminal device 1, terminal device 2, terminal device 3, and terminal device 4 is "00001000", "00000100", "00000010", and "00000001", respectively. When the length of the bitmap is the same as the number of time units included in the second time unit set in the first time period, the bitmap included in the downlink control information sent to terminal device 1, terminal device 2, terminal device 3, and terminal device 4 is "1000", "0100", "0010", and "0001", respectively.

In the example of fig. 7, optionally, the bitmap indication information may only correspond to the part of the data region of the first time period, for example, in fig. 7, the bitmaps included in the downlink control information sent to terminal device 1, terminal device 2, terminal device 3, and terminal device 4 are "1000", "0100", "0010", and "0001", respectively. In this case, the second set of time units may include time units over the first time period other than the third set of time units. At this time, the first set of time units and the third set of time units are the same. The network device cannot transmit data on symbols within the control region.

Further, the bitmap described above may be applied to a plurality of first time periods, in which case, in the next first time period, the terminal device receives data in the same time unit as the first time unit and the second time unit in the next first time period.

As described above, the collection of first time units or second time units may be referred to as a mini-slot. Optionally, in this embodiment of the present invention, the length of the mini-slot may also be configured through a high layer signaling. That is, the network device may also send a higher layer signaling indicating the length of the mini-slot to the terminal device. In this case, the terminal device may determine the second time unit according to the identifier of the second time unit and the length of the mini-slot configured by the higher layer signaling. For example, the length of a mini-slot configured by higher layer signaling is 2, in this case, one mini-slot includes 2 symbols, and the first indication information only indicates a time unit in the second time unit set. In fig. 7, the identifiers of the second time unit included in the downlink control information sent to terminal device 1, terminal device 2, terminal device 3, and terminal device 4 are respectively: "00", "01", "10" and "11". Of course, the length of the mini-slot configured by the higher layer signaling may not be 2.

Further, in this step, the processor 201, which may be a network device, instructs the transmitter 203 to transmit. After the receiver 302 receives the downlink control information, the processor 301 may obtain the first indication information.

Step 503: and the network equipment sends data to the terminal equipment in the first time unit and the second time unit indicated by the first indication information. Correspondingly, the terminal device receives data from the network device in the first time unit and the second time unit indicated by the first indication information.

In this step, the network device sends not only the downlink control information but also data to the terminal device in the first time unit, and the network device also sends only data to the terminal device in the second time unit, and does not send control information in the second time unit. And the data sent to the terminal equipment by the network equipment in the first time unit and the second time unit corresponds to the same coding block and is subjected to channel coding.

In this way, the terminal device receives data from the network device at the first time unit and the second time unit indicated by the first indication information.

Further, in this step, the processor 201, which may be a network device, instructs the transmitter 203 to transmit. After the receiver 302 receives the data, the data may be further processed by the processor 301.

The invention aims at a high-frequency deployment scene, and data sent to the same terminal device are borne in a first time unit and a second time unit, and the first time unit and the second time unit can be discontinuous in time. Therefore, the terminal equipment can monitor the control channel in some pre-configured time units and indicate the symbols carrying the data channel, so that a time discontinuous mini-slot is formed, data can be flexibly scheduled, and the design can be kept consistent with the design of slot-based control signaling as much as possible. In addition, since the first time unit set can be a subset of the third time unit set, the control region can also be used for scheduling data without sending control signaling on each symbol of the control region, thereby enabling flexible control of the overhead of the control signaling.

It should be noted that, if there is less data to be sent to the terminal device, and the resource occupied by the first time unit is already sufficient to accommodate the data of the terminal device, the downlink control information may not indicate the second time unit, so that the network device may send data to the terminal device only in the first time unit, and likewise, the terminal device may receive data only in the first time unit. In this case, the design such as the first indication information may still refer to the above description.

Optionally, the embodiment of the present invention may further include step 501 before step 502.

Step 501: the network device determines beam information corresponding to a first time unit in the first time unit set, where the beam information is information of a transmission beam in the first time unit.

Alternatively, this step may be performed by the processor 201 of the network device in fig. 3.

For the terminal device, in this optional embodiment, before the terminal device receives the downlink control information, the method further includes: and the terminal equipment determines the beam information corresponding to the first time unit. It should be noted that, in the embodiment of the present invention, it is not limited that the terminal device and the network device simultaneously determine the beam information corresponding to the first time unit in the first time unit set.

In this way, in step 502, the network device transmits the downlink control information to the terminal device using the beam corresponding to the beam information in the first time unit, and accordingly, the terminal device may receive the downlink control information from the network device based on the beam information in the first time unit.

For example, the terminal device may only use the beam blind detection downlink control information corresponding to the beam information in the first time unit, and does not need to use each of the multiple beams to blind detect the downlink control information in the first time unit, so that the number of blind detections of the terminal device can be reduced.

In this optional embodiment, each time unit in the first time unit set may be in one-to-one correspondence with a transmission beam used by a network device. Of course, the partial time units may correspond to the transmission beams used by the network device one to one. The different time units may correspond to the same transmission beam or different transmission beams.

The implementation of this step 501 may be various:

first, the network device may determine itself from a plurality of beams and transmit control information to the terminal device using the beams over a first time unit. In this case, the network device may send the information of the beam to the terminal device, so that the terminal device directly receives the downlink control information using the information of the beam sent by the network device, thereby eliminating the need to use each beam for blind detection and reducing the number of blind detections of the terminal device. In this manner, the determining, by the terminal device, the beam information corresponding to the first time unit may include: and the terminal equipment determines the beam information corresponding to the first time unit according to the beam information sent by the network equipment.

Secondly, the terminal device may determine a beam for the first time unit from the plurality of beams by itself, and further, the terminal device sends information of the beam used in the first time unit to the network device. In this manner, the determining, by the network device, the beam information corresponding to the first time unit may include: and the network equipment determines the beam information corresponding to the first time unit according to the beam information sent by the terminal equipment.

Third, before the network device determines the beam information corresponding to the first time unit in the first time unit set, the network device transmits reference signals of a plurality of predefined beams at predefined locations. Fig. 8 is a diagram illustrating a relationship between beams of a reference signal and predefined positions according to an embodiment of the present invention. Further, the reference signal (reference signal) may be a reference signal transmitted by the same port, and the predefined position may be a different time position (as shown in 8-a in fig. 8) or a reference signal of a different port is at the same time position (as shown in 8-b in fig. 8). Wherein FIG. 8-a shows: the network device transmits the reference signal corresponding to the antenna port 1 by using the beam 1, the beam 2, the beam 3 and the beam 4 respectively in four time units. Fig. 8-b shows that the network device transmits the reference signals corresponding to antenna port 1, antenna port 2, antenna port 3 and antenna port 4 by using beam 1, beam 2, beam 3 and beam 4, respectively, in one time unit.

In this manner, the terminal device measures the received signal strength of the received reference signals corresponding to the different beams.

Optionally, the terminal device may send the measured received signal strengths of all the reference signals and information of the beam corresponding to each reference signal to the network device. The network device may determine a beam for the first time unit from the plurality of beams and send information for the beam to the terminal device.

Optionally, the terminal device may send information of one of the plurality of beams to the network device, so that the network device determines the information of the beam according to the information.

Optionally, the terminal device may send the measured received signal strengths of all the reference signals and information of the beam corresponding to each reference signal to the network device. The network device can determine a beam with the strongest received signal strength for the first time unit from the plurality of beams without transmitting information of the beam to the terminal device. The terminal device defaults that the network device will use the beam with the strongest received signal strength.

In this optional embodiment, the information of the beam may be a time position of the beam, such as an identifier of a symbol corresponding to the beam in fig. 8-a, a port number of a reference signal corresponding to the beam, such as a port number of the reference signal in fig. 8-b, or identification information of the beam.

Optionally, the network device may send the information of the beam to the terminal device through dedicated signaling.

Further, the first time unit and the second time unit may correspond to different beams, respectively. Therefore, the downlink control information further includes second indication information indicating beam information in the second time unit, where the receiving, by the terminal device, data from the network device includes: the terminal device receives the data from the network device based on the beam information indicated by the first indication information in the first time unit and based on the beam information indicated by the second indication information in the second time unit. Of course, the beam information indicated by the second indication information and the beam information indicated by the first indication information may be the same.

Optionally, the downlink control information sent by the network device does not include information of a beam used in the second time unit, and the network implicitly indicates that the first time unit and the second time unit use the same beam. Thus, the terminal device receives data from the network device, including: the terminal device receives data from the network device in the first time unit and the second time unit indicated by the first indication information based on the beam information.

In this optional embodiment, the downlink control information is only sent on a part of symbols in a time period, and beamforming is adopted on the symbols where the downlink control information is located, so that coverage of a control channel can be ensured.

Fig. 9 shows a schematic block diagram of a terminal device 900 according to an embodiment of the present invention, where each module in the terminal device 900 is respectively configured to execute each action or processing procedure executed by the terminal device in the foregoing method, and here, for avoiding repeated descriptions, detailed descriptions may refer to the above description.

The terminal device may include: a communication module and a processing module, wherein,

the communication module is configured to receive downlink control information from a network device in a first time unit, where the downlink control information includes first indication information indicating a second time unit, and the first time unit and the second time unit are located in a first time period, and the first time period includes a first time unit set and a second time unit set, where the first time unit belongs to the first time unit set and the second time unit belongs to the second time unit set; and

the communication module is further configured to receive data from the network device within the first time unit and the second time unit indicated by the first indication information.

Specifically, the processing module may obtain the indication information from the downlink control information, and obtain the data received by the communication module.

Optionally, the data received in the first time unit and the data received in the second time unit correspond to the same transport block, and the first time unit and the second time unit are not consecutive in time.

Wherein the first indication information is a bitmap, and the bitmap indicates the second time unit.

The bitmap may also indicate the first time unit.

Optionally, the communication module is further configured to receive first signaling from the network device, where the first signaling indicates a location of the first set of time units in the first time period.

Optionally, the communication module is further configured to receive second signaling from the network device, where the second signaling indicates a location of a third time unit set in the first time period. Wherein the third set of time units is the same as the first set of time units, or the first set of time units is a subset of the third set of time units.

Optionally, the processing module is configured to determine beam information corresponding to a first time unit, where the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

the communication module is specifically configured to receive the downlink control information as follows: receiving the downlink control information from the network device based on the beam information over the first time unit.

the communication module is specifically configured to receive data from the network device as follows:

receiving the data from the network device in the first time unit based on the beam information indicated by the first indication information and the beam information indicated by the second indication information in the second time unit.

Optionally, the communication module is specifically configured to receive data from the network device as follows:

receiving data from the network device in the first time unit and the second time unit indicated by the first indication information based on the beam information.

Optionally, the processing module is configured to measure a received signal strength of the network device on a predefined transmission beam; and

the communication module is further configured to send, to the network device, the received signal strength information of the transmission beam and the identification information of the beam.

It should be noted that the processing module in this embodiment may be implemented by 301 in fig. 4, and the communication module in this embodiment may be implemented by the receiver 302 and the transmitter 303 in fig. 4.

The technical effects achieved by the present embodiment can be referred to the above description, and are not described herein again.

Fig. 10 shows a schematic block diagram of a network device 1000 according to an embodiment of the present invention, where each module in the network device 1000 is respectively configured to execute each action or processing procedure executed by the network device in the foregoing method, and here, for avoiding repeated descriptions, detailed descriptions may refer to the above description.

The network device 1000 includes: a communication module and a processing module, wherein,

the communication module is configured to send downlink control information to a terminal device in a first time unit, where the downlink control information includes first indication information indicating a second time unit, the first time unit and the second time unit are located in a first time period, and the first time period includes a first time unit set and a second time unit set, where the first time unit belongs to the first time unit set and the second time unit belongs to the second time unit set; and

the communication module is further configured to send data to the terminal device in the first time unit and the second time unit indicated by the first indication information.

Specifically, the processing module may control the communication module to send downlink control information and data.

Wherein, the implementation manners of the first indication information can all refer to the above description.

Optionally, the communication module is further configured to send a first signaling to the terminal device, where the first signaling indicates a middle position of the first time unit set in the first time period.

Optionally, the processing module is configured to determine beam information corresponding to the first time unit, where the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

the communication module is further configured to send the downlink control information to the terminal device based on the beam information in the first time unit.

the communication module is specifically configured to send data to the terminal device as follows:

and transmitting the data to the terminal equipment by using the beam corresponding to the beam information indicated by the first indication information in the first time unit and the beam corresponding to the beam information indicated by the second indication information in the second time unit.

Optionally, the communication module is specifically configured to send data to the terminal device in the following manner, including:

It should be noted that the processing module in this embodiment may be implemented by the processor 201 in fig. 3, and the communication module in this embodiment may be implemented by the receiver 202 and the transmitter 203 in fig. 3.

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

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others. It should be understood that, in various embodiments of the present invention, 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 on the implementation process of the embodiments of the present invention.

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 embodiments.

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 invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

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 solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product, which is stored in a storage medium and includes several 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 methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only a specific implementation of the embodiments of the present invention, but the scope of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present invention, and all such changes or substitutions should be covered by the scope of the embodiments of the present invention.

Claims

1. A data receiving method, comprising: the terminal device receives downlink control information from the network device on a first time unit,

the downlink control information includes first indication information indicating a second time unit, the first time unit and the second time unit are located in a first time period, the first time period includes a first time unit set and a second time unit set, the first time unit belongs to the first time unit set, and the second time unit belongs to the second time unit set; and

the terminal equipment receives data from the network equipment in the first time unit and the second time unit indicated by the first indication information;

the data received by the terminal equipment in the first time unit and the second time unit correspond to the same transmission block;

wherein, the time unit is an OFDM symbol.

2. The method of claim 1, wherein the first indication information is a bitmap, and wherein the bitmap indicates the second time unit.

3. The method of claim 2, wherein the bitmap further indicates the first time unit.

4. The method of claim 1, wherein the first time unit and the second time unit are not contiguous in time.

5. The method of claim 2, wherein the first time unit and the second time unit are not contiguous in time.

6. The method of any one of claims 1 to 5, wherein;

before the terminal device receives the downlink control information, the method further includes:

the terminal device receives first signaling from the network device, wherein the first signaling indicates a location of the first set of time units in the first time period.

7. The method according to any one of claims 1 to 5,

before the terminal device receives the downlink control information, the method further includes: the terminal device determines beam information corresponding to a first time unit, wherein the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

the receiving, by the terminal device, the downlink control information includes: the terminal device receives the downlink control information from the network device based on the beam information over the first time unit.

8. The method of claim 7,

the downlink control information further includes second indication information indicating beam information over the second time unit, wherein,

the terminal device receives data from the network device, including:

9. The method of claim 7,

the terminal device receives data from the network device, including:

10. The method of claim 7, wherein before the terminal device determines the beam information corresponding to the first time unit, the method further comprises:

11. A data transmission method, comprising:

the method comprises the steps that a network device sends downlink control information to a terminal device on a first time unit, wherein the downlink control information comprises first indication information, the first indication information indicates a second time unit, the first time unit and the second time unit are located in a first time period, the first time period comprises a first time unit set and a second time unit set, the first time unit belongs to the first time unit set, and the second time unit belongs to the second time unit set; and

the network equipment sends data to the terminal equipment in the first time unit and the second time unit indicated by the first indication information;

the data sent by the network equipment in the first time unit and the second time unit correspond to the same transmission block;

wherein, the time unit is an OFDM symbol.

12. The method of claim 11, wherein the first indication information is a bitmap, and wherein the bitmap indicates the second time unit.

13. The method of claim 12, wherein the bitmap further indicates the first time unit.

14. The method of claim 11, wherein the first time unit and the second time unit are not contiguous in time.

15. The method of claim 12, wherein the first time unit and the second time unit are not contiguous in time.

16. The method of any one of claims 11 to 15, wherein;

before the network device sends the downlink control information to the terminal device, the method further includes:

17. The method according to any one of claims 11 to 15,

before the network device sends the downlink control information to the terminal device, the method further includes: the network device determines beam information corresponding to the first time unit, wherein the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

18. The method of claim 17, wherein the downlink control information further includes second indication information indicating beam information in the second time unit, wherein,

the network device sends data to the terminal device, and the data sending method comprises the following steps:

19. The method of claim 17,

20. The method of claim 17, wherein before the network device determines the beam information corresponding to the first time unit, the method further comprises:

the network device receiving, from the terminal device, the received signal strength information of the transmission beam and the identification information of the beam;

21. A terminal device, comprising: a communication module and a processing module, wherein,

the communication module is further configured to receive data from the network device within the first time unit and the second time unit indicated by the first indication information;

the data received by the communication module in the first time unit and the second time unit correspond to the same transmission block.

22. The terminal device according to claim 21, wherein the first indication information is a bitmap, and the bitmap indicates the second time unit.

23. The terminal device of claim 22, wherein the bitmap further indicates the first time unit.

24. The terminal device of claim 21, wherein the first time unit and the second time unit are not contiguous in time.

25. The terminal device of claim 23, wherein the first time unit and the second time unit are not contiguous in time.

26. The terminal device according to any of claims 21 to 25, characterized by;

the communications module is further configured to receive first signaling from the network device, wherein the first signaling indicates a location of the first set of time units in the first time period.

27. The terminal device according to any of claims 21 to 25,

the processing module is configured to determine beam information corresponding to a first time unit, where the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

28. The terminal device of claim 27, wherein the downlink control information further includes second indication information indicating beam information in the second time unit, wherein,

29. The terminal device of claim 27,

30. The terminal device of claim 27, wherein the processing module is configured to measure received signal strength on a predefined transmit beam; and

31. A network device, comprising:

a communication module and a processing module, wherein,

the communication module is further configured to send data to the terminal device in the first time unit and the second time unit indicated by the first indication information;

the data sent by the communication module in the first time unit and the second time unit correspond to the same transmission block.

32. The network device of claim 31, wherein the first indication information is a bitmap, and wherein the bitmap indicates the second time unit.

33. The network device of claim 32, wherein the bitmap further indicates the first time unit.

34. The network device of claim 31, wherein the first time unit and the second time unit are not contiguous in time.

35. The network device of claim 32, wherein the first time unit and the second time unit are not contiguous in time.

36. The network device of any one of claims 31 to 35, wherein;

the communication module is further configured to send a first signaling to the terminal device, where the first signaling indicates a middle position of the first time unit set in the first time period.

37. The network device of any one of claims 31 to 35,

the processing module is configured to determine beam information corresponding to the first time unit, where the beam information is information of a transmission beam in the first time unit; wherein the content of the first and second substances,

38. The network device of claim 37, wherein the downlink control information further comprises second indication information indicating beam information in the second time unit, wherein,

39. The network device of claim 37,

the communication module is specifically configured to send data to the terminal device in the following manner, including:

40. The network device of claim 37, wherein before the network device determines the beam information corresponding to the first time unit, the method further comprises:

41. A storage medium characterized in that,

the storage medium stores a computer program which, when executed by a computer device, is capable of implementing the method of any one of claims 1 to 20.