WO2018137569A1

WO2018137569A1 - Data sending method and apparatus, and data receiving method and apparatus

Info

Publication number: WO2018137569A1
Application number: PCT/CN2018/073436
Authority: WO
Inventors: 吕永霞; 简-玛丽马瑞泽大卫; 马蕊香
Original assignee: 华为技术有限公司
Priority date: 2017-01-26
Filing date: 2018-01-19
Publication date: 2018-08-02
Also published as: CN108365879B; CN108365879A

Abstract

The embodiments of the present invention provide a method and apparatus for sending data. 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, wherein 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 device receives data from the network device within the first time unit and the second time unit indicated by the first indication information.

Description

Data transmitting method and device, and data receiving method and device

The present application claims priority to Chinese Patent Application, filed on Jan. 26, 2017, filed Jan. In this application.

Technical field

Embodiments of the present invention relate to the field of communications, and in particular, to a data transmitting method and apparatus, and a data receiving method and apparatus.

Background technique

Mobile communications has profoundly changed people's lives, but the pursuit of higher performance mobile communications has never stopped. In order to cope with the explosive growth of mobile data traffic, massive device connections, and emerging new services and application scenarios, the fifth-generation mobile communication (5G) communication system will emerge.

The 5G communication system will support multiple service types, different deployment scenarios and a wider spectrum range. A variety of service types include enhanced mobile broadband (eMBB), Massive Machine Type Communication (mMTC), ultra-reliable and low latency communications (URLLC), multimedia broadcast multicast Multimedia Broadcast Multicast Service (MBMS) and location services. Different deployment scenarios include indoor hotspots, dense urban areas, suburbs, urban macros and high-speed rail scenes. The wider spectrum range means that the 5G communication system will support the 100 GHz band, which includes both the low frequency part below 6 GHz and the high frequency part above 6 GHz up to 100 GHz.

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

First of all, compared with the low frequency signal, the wireless signal has a large loss of high frequency propagation. How to compensate the propagation path loss of the high frequency wireless signal is an important factor to be considered in the system design. An alternative is to use massive-MIMO technology. The size of each antenna element of the high-frequency wireless signal can be greatly reduced, so that more antenna numbers can be supported in the same antenna area, so the large-scale antenna technology and the high-frequency deployment scene can be well combined, and the use of multiple The beamforming technique of the antenna can effectively enhance the coverage.

Second, the propagation characteristics of wireless signals at high frequencies are very different from those at low frequencies. The ability of the wireless signal to scatter and diffract will weaken as the wavelength decreases, and the penetration loss will increase accordingly. Therefore, the propagation of high-frequency signals is greatly affected by occlusion, and the line-of-sight propagation becomes the main mode of propagation of high-frequency signals. This means that the use of high-frequency signals for macrocell coverage challenges is relatively large, so the typical deployment scenario for high-frequency is indoor or hotspot coverage.

Thirdly, the delay spread of high-frequency wireless signals is relatively small, mainly because it mainly relies on line-of-sight propagation. In addition, the use of large-scale antenna technology also affects the delay spread of the channel. As the delay spread of the channel becomes smaller, the frequency selective fading of the channel is correspondingly reduced, and the gain of the frequency selective scheduling is also correspondingly reduced. For the service that is not sensitive to delay, a time division scheduling manner can be adopted.

In addition, high-frequency wireless signals are greatly affected by Doppler frequency shift and phase noise. The choice of physical layer parameters in system design needs to consider these effects, such as Orthogonal Frequency Division (Orthogonal Frequency Division). The subcarrier spacing adopted by the Multiplexing, OFDM system, and the time-frequency position of the demodulation reference signal.

From the above, large-scale antenna technology will be widely used in high-frequency scenarios, among which the core technology is beamforming technology. The beamforming technology 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 synchronization channel, broadcast channel, downlink control channel and data channel design. One of the most fundamental problems is that because wireless signals have special propagation characteristics and large penetration loss in high frequency bands, network equipment cannot provide omnidirectional good coverage at a certain time, including both broadcast signals and users. A dedicated signal for the device. Therefore, the coverage of the signal will depend on the beam sweeping technique. That is, at some point, the coverage of the network depends on beamforming to serve only user equipment under one or several beams. After the beam scanning technique is adopted, the scheduling policy of the network device tends to allocate the entire band resource to a limited number of user equipments at a certain time. An extreme case is that only one user is scheduled at a time, that is, the time division scheduling method is adopted. In this case, the design of the control channel and the monitoring mechanism of the user equipment, as well as the scheduling strategy of the user equipment, will have a greater impact on the performance of the entire system.

Summary of the invention

Embodiments of the present invention provide a data transmission method and apparatus, and a data receiving method and apparatus, to provide a data scheduling scheme that can be applied in a high frequency scenario.

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

The terminal device receives downlink control information from the network device on the first time unit, where the first time unit and the second time unit are located in a first time period, where the first time period includes a first time unit set and a a set of two time units, wherein 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 device receives data from the network device 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, where the first indication information indicates the second time unit.

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

The network device sends downlink control information to the terminal device on the first time unit, where the first time unit and the second time unit are located in the first time period, where the first time period includes the first time unit set and the first time unit a set of two time units, wherein the first time unit belongs to the first time unit set, and the second time unit belongs to the second time unit set;

The network device sends data to the terminal device on the second time unit indicated by the first time unit and the first indication information.

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

For the high-frequency deployment scenario, since the data sent to the same terminal device is carried in the first time unit and the second time unit, the terminal device can listen to the control channel in some pre-configured time units and indicate the bearer data channel. The symbol, the design of the time unit for transmitting control information and data, can be as consistent as possible with the design of slot-based control signaling.

Optionally, the first indication information is a bitmap, and the bitmap indicates the second time unit. The advantage of using a bitmap is that the length of the DCI can be the same regardless of the number of time units included in the second time unit, thereby reducing the number of blind detections.

Optionally, the bitmap further indicates the first time unit.

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

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

Optionally, the first time unit and the second time unit are discontinuous in time.

Since the first time unit and the second time unit are discontinuous in time, data received in the first time unit and the second time unit correspond to the same transport block, thereby forming a time discontinuity The mini-slot, the network device can schedule the data of the same transport block to a discontinuous time unit, thereby enabling flexible scheduling data.

Optionally, before the terminal device receives the downlink control information, the method further includes: the terminal device receiving the first signaling from the network device, where the first signaling indicates that the first time unit is set in the The position 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 the first signaling to the terminal device, where the first signaling indicates that the first time unit is set in a middle position of the first time period.

Optionally, before the terminal device receives the downlink control information, the method further includes: the terminal device receiving the second signaling from the network device, where the second signaling indicates that the third time unit is set in the A location in a time period, wherein the time unit included in the third time unit set is a time unit that can be used to transmit downlink control information.

The network device sends the second signaling to the terminal device.

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 set of third time units. When the first time unit set is a subset of the third time unit set, the network device can schedule the data to be sent in the control area, and therefore, in a scenario where the number of terminal devices is small and the amount of data is large, The terminal device sends more data. Moreover, the network device does not need to 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 determining beam information corresponding to the first time unit, where the beam information is in the first time unit The information about the transmit beam is received by the terminal device, where the terminal device receives the downlink control information from the network device based on the beam information on the first time unit. .

Correspondingly, before the network device sends the downlink control information to the terminal device, the method further includes: determining, by the network device, beam information corresponding to the first time unit, where the beam information is at the first Information about the transmit beam on the time unit;

And the sending, by the network device, the downlink control information to the terminal device, where the network device sends the downlink control information to the terminal device based on the beam information on the first time unit.

In this optional embodiment, since the downlink control information is only sent on a part of the time unit of the first time period, and beamforming is used on the time unit where the downlink control information is located, the 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 on the second time unit, where

Receiving, by the terminal device, data from the network device, including:

The terminal device receives the data from the network device according to beam information indicated by the first indication information and beam information indicated by the second indication information in the second time unit by the first time unit.

Correspondingly, the network device sends data to the terminal device, including:

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

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

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

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

In this way, the first time unit and the second time unit can use the same beam.

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

The terminal device measures a received signal strength of the network device on a predefined transmit beam;

The terminal device sends the received signal strength information of the transmit beam and the identifier information of the beam to the network device.

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

The terminal device receives second signaling from the network device, and the second signaling indicates an identifier of the transmit beam.

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

The network device transmits a reference signal on a predefined transmit beam;

The network device receives, from the terminal device, received signal strength information of the transmit beam and identification information of the beam.

The network device determines 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 sending beam;

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

The network device sends second signaling to the terminal device, where the second signaling indicates an identifier of the transmit beam.

In a third aspect, a network device, a method for executing the foregoing network device, is provided. Specifically, the network device may include a module for performing corresponding steps of the network device. For example, a processing module, a transmitting module, a receiving module, and the like.

A fourth aspect provides a terminal device, a method for the foregoing terminal device, and specifically, the terminal device may include a module for performing corresponding steps of the terminal device. For example, a processing module, a transmitting module, a receiving module, and the like.

In a fifth aspect, a network device is provided, comprising a memory and a processor for storing a computer program for calling and running the computer program from a memory, such that the network device performs the method of the network device described above.

In a sixth aspect, there is provided a terminal device comprising a memory and a processor for storing a computer program for calling and running the computer program from the memory such that the terminal device performs the method of the terminal device described above.

In a seventh aspect, a computer readable storage medium is provided having instructions stored therein that, when executed on a computer, cause the computer to perform the methods described in the above aspects.

In an eighth aspect, a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the various aspects above.

DRAWINGS

1 is a schematic diagram of a wireless communication system applied to an embodiment of the present invention.

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

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

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

FIG. 5 is a diagram showing an interaction diagram of data transmission in a method according to an embodiment of the present invention.

FIG. 6 is a diagram showing a first time slot structure applied to an embodiment of the present invention.

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

FIG. 8 is a schematic diagram showing the relationship between a beam of a reference signal and a predefined position 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 in accordance with an embodiment of the present invention.

detailed description

It should be understood that embodiments of the present invention may be applied to various communication systems, such as: global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access. (wideband code division multiple access, WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system , a universal mobile telecommunication system (UMTS) or a next-generation communication system, such as a 5G system.

In general, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technologies, mobile communication systems will not only support traditional communication, but also support, 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 describe 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 one of the network device and the terminal device, for example, in the present invention. In an embodiment, the sending device may be a network device, and the receiving device may be a terminal device; or the sending device may be a terminal device, and the receiving device may be a network device.

A terminal device may also be called a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user. Agent or user device. 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, or a wireless local loop (wireless local Loop, WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, and next-generation communication system, For example, a terminal device in a fifth-generation (5G) communication network or a terminal device in a public land mobile network (PLMN) network that is evolving in the future.

As an example, in the embodiment of the present invention, the terminal device may also be a wearable device. A wearable device, which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.

The network device may be a device for communicating with the mobile device, and the network device may be an access point (AP) in the WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, or may be in WCDMA. A base station (NodeB, NB), which may also be an evolved Node B (eNB or eNodeB) in LTE, or a relay station or an access point, or an in-vehicle device, a wearable device, and a network device in a future 5G network or a future Network devices and the like in an evolved PLMN network.

In addition, in the embodiment of the present invention, the network device provides a service for the cell, and the terminal device communicates with the network device by using 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 (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell, where the small cell may include: a metro cell and a micro cell ( Micro cell), Pico cell, Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

The method and apparatus provided by the embodiments of the present invention may be applied to a terminal device or a network device, where the terminal device or the network device includes 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 main memory). The operating system may be any one or more computer operating systems that implement business processing through a process, 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 includes applications such as browsers, contacts, word processing software, and instant messaging software. Further, in the embodiment of the present invention, the specific structure of the execution body of the method for transmitting a signal is not particularly limited as long as the program of the code for recording the method of transmitting the signal of the embodiment of the present invention can be executed by The method for transmitting a signal according to the embodiment of the present invention may be used for communication. For example, the execution body of the method for wireless communication according to the embodiment of the present invention may be a terminal device or a network device, or may be a terminal device or a network device capable of calling a program and The functional module that executes the program.

Furthermore, 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 in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, a computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (DVD). Etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.). Additionally, 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" may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.

In the current discussion, one consensus is that the concept of mini-slot can be applied in scenarios with large bandwidth scheduling in high-frequency systems, ie scheduling strategies tend to be smaller in time granularity. However, there is no definite solution for how to perform data scheduling based on mini-slot. In addition, there is no definite solution for how to listen to the downlink control channel based on the mini-slot.

In response to the above problems, an embodiment of the present invention provides a data transmission method and a data receiving method, and a corresponding network device and terminal device.

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, which may include one antenna or multiple antennas, such as

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).

Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.

Terminal devices

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

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

antennas

112 and 114, wherein

antennas

112 and 114 transmit information to terminal device 116 over a forward link (also referred to as downlink) 118 and through the reverse link (also Information referred to as uplink 120 receives information from terminal device 116. In addition, terminal device 122 is in communication with

antennas

104 and 106, wherein

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.

For example, in a frequency division duplex (FDD) system, for example, forward link 118 can use a different frequency band than reverse link 120, and forward link 124 can be used differently than reverse link 126. Frequency band.

For another example, in a time division duplex (TDD) system, a full duplex system, and a flexible duplex system, the forward link 118 and the reverse link 120 can use a common frequency band, a forward chain. The path 124 and the reverse link 126 can use a common frequency band.

Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area. The network device can transmit signals to all of the terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity. In the course of network device 102 communicating with

terminal devices

116 and 122 via

forward links

118 and 124, respectively, the transmit antenna of network device 102 may also utilize beamforming to improve the signal to noise ratio of

forward links

118 and 124. Moreover, when the network device 102 utilizes beamforming to transmit signals to the randomly dispersed

terminal devices

116 and 122 in the associated coverage area, as compared to the manner in which the network device transmits signals to all of its terminal devices through single antenna or multi-antenna transmit diversity, Mobile devices in neighboring cells are subject to less interference.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.

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

FIG. 2 is a schematic structural diagram of a network device in the above wireless communication system. The network device is capable of executing the data sending method provided by the embodiment of the present invention. The network device includes a processor 201, a receiver 202, a transmitter 203, and a memory 204. The processor 201 can be communicatively coupled to the receiver 202 and the transmitter 203. The memory 204 can be used to store program code and data for the network device. Therefore, the memory 204 may be a storage unit inside the processor 201, or may be an external storage unit independent of the processor 201, or may be a storage unit including the processor 201 and an external storage unit independent of the processor 201. component.

Optionally, the network device may further include a bus 205. The receiver 202, the transmitter 203, and the memory 204 may be connected to the processor 201 via a bus 205; the bus 205 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard structure (Extended Industry Standard) Architecture, EISA) bus, etc. The bus 205 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.

The processor 201 can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and a field programmable gate. Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.

The receiver 202 and the transmitter 203 may be circuits including the above-described antenna and transmitter chain and receiver chain, which may be independent circuits or the same circuit.

FIG. 3 is a schematic structural diagram of a terminal device in the above wireless communication system. The terminal device is capable of performing the data receiving method provided by the embodiment of the present invention. The terminal device may include a processor 301, a receiver 302, a transmitter 303, and a memory 304. Optionally, the processor 301 can be communicatively coupled to the receiver 302 and the 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 via the bus 305. The bus 305 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like. The bus 305 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 3, but it does not mean that there is only one bus or one type of bus.

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

The communication between the network device and the terminal device is implemented on time-frequency resources. The time-frequency resource in the embodiment of the present invention may be a high-frequency resource greater than 6 GHz, and may of course be applied to a low-frequency resource less than or equal to 6 GHz. FIG. 4 is a schematic diagram of a frame structure according to an embodiment of the present invention. In the time domain, as shown in FIG. 4, one radio frame is 10 milliseconds (millisecond, ms), and is composed of 10 subframes. Each subframe is 1ms. The subcarrier space (SBS) corresponds to different slot lengths. Therefore, one subframe may include one or more slots, and each slot may be 7 or 14 OFDM. Symbol composition. For a carrier less than or equal to 60 kHz subcarrier spacing, one slot may contain 7 or 14 OFDM symbols, and for a subcarrier spacing above 60 kHz, one slot contains 14 OFDM symbols. For example, when the subcarrier spacing is 15 kHz and one slot is composed of 7 OFDM symbols, one subframe is composed of 2 slots. When the subcarrier spacing is 30 kHz, one slot is composed of 7 OFDM symbols, and one subframe is composed of 4 slots. Therefore, in the case of different subcarrier spacings, the number of slots included in one subframe varies with 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 may be applied to any subframe format.

In the embodiment of the present invention, the first time period includes a first time unit set and a second time unit set. The first time unit set includes one or more time units, and the second time unit 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 previous or first few OFDM symbols in the first time period. The OFDM symbols (hereinafter simply referred to as symbols) other than the second set of time units in the first time period constitute the second time unit. The first time period may be one subframe, and at least two subframes are also started.

The method of the embodiment of the present invention is specifically described below. FIG. 5 is a diagram showing an interaction diagram of data transmission in a method according to an embodiment of the present invention. As shown in FIG. 5, the method includes the following steps. It should be noted that the broken line in FIG. 5 indicates that the corresponding step is an optional step.

Step 500: The terminal device receives the 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 the first time unit set in the first time period.

This step is an optional step, 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 dedicated signaling of the terminal device, that is, signaling dedicated to the terminal device. For example, it can be high layer signaling or physical layer signaling. The terminal device dedicated signaling in the embodiment of the present invention can be defined as such.

Optionally, before the step 500, the embodiment of the present invention may further include: the terminal device receives the 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 the third time unit set 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 can again be referred to as a control area. Thus, the control region can be the first few symbols of a subframe, or the first few symbols of at least two subframes. The control area is configured to send downlink control signaling, which is used to schedule a data channel. That is, the control signaling sent by the network device is located in the symbol of the control region.

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

If the terminal device does not receive the first signaling, the terminal device blindly detects the control signaling on the symbol included in the control region. If the terminal device receives the first signaling, the terminal device blindly detects the control signaling on the symbol included in the first time unit set.

Optionally, in this step, the sending action may be performed by the transmitter 203 of the network device in FIG. 3, and the received action may be performed by the receiver 302 of the terminal device in FIG.

Further, in this step, the processor 201 of the network device may instruct the transmitter 203 to transmit. After receiving the first signaling, the receiver 302 may obtain the information in the first signaling by the processor 301.

Step 502: The network device sends downlink control information to the terminal device on the first time unit. Correspondingly, the terminal device receives downlink control information from the network device on the first 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, wherein the first time unit belongs to the a first set of time units, the second time unit belonging to the second set of time units.

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

In this embodiment, the first time unit and the second time unit may be discontinuous in time, and may of course be continuous in some special cases. In the embodiment of the present invention, the time unit formed by the first time unit and the second time unit may be referred to as a mini-slot. This discontinuous design enables flexible scheduling of data transmissions while keeping the downlink control information transmitted over part of the time unit to be as consistent as possible with slot-based designs.

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 can only be one time unit. Similarly, the first time unit may also be one or more time units in the first time unit set. The embodiment of the present invention does not limit that the first time unit can only be one time unit. The drawings in the embodiments of the present invention are all described by taking 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 that the network device actually uses to transmit the control channel may be smaller than the number of time units that the network device actually uses to transmit the control channel may be smaller than the time unit configured by the network device that can be used to transmit the control channel. Number.

When the first time unit set is a subset of the third time unit set, the data can be scheduled in the control area, and therefore, in a scenario where the number of terminal devices is small and the amount of data is large, the terminal device can be sent. More data.

It should be noted that, in the embodiment of the present invention, the resource location of the downlink control information on the first time unit is not limited. It may be in the frequency domain position with a small label in the first time unit, or may be an intermediate position in the entire bandwidth or a frequency domain position with a larger label. Moreover, the downlink control information may also be dispersed in discontinuous frequency domain locations.

FIG. 6 is a diagram showing a first time slot structure applied to an embodiment of the present invention. It should be noted that the time unit in FIG. 6 may be a symbol, and FIG. 6 is only described by taking one subframe including eight symbols as an example, but the embodiment of the present invention is not limited thereto, and one subframe includes symbols. The number can be seen in the description above.

The first set of time units shown in FIG. 6 is composed of the first two symbols, the third time unit is composed of the first four symbols, and the second time unit is composed of symbols other than the first two symbols in the subframe. 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 can transmit data through the symbols in the third set of time units that are not included in the set of first time units. For example, in FIG. 6, the network device transmits control information to the terminal device 1 (denoted as UE1) on symbol 1, the control information indicating symbol 3 and symbol 4, such that the terminal device 1 is on symbol 1, symbol 3 and symbol 4. Receive data sent by the network device. The network device transmits control information to the terminal device 2 (denoted as UE2) on symbol 2, the control information indicating symbols 5 to 8, such that the terminal device 2 receives the transmission from the network device on symbol 2, and symbol 4 to symbol 8. data. In this example, the second time unit corresponding to the terminal device 1 includes two time units.

Optionally, the terminal device may receive downlink control information from the network device on the first time unit by performing blind detection on each time unit included in the first time unit set.

Further, the terminal device may perform blind detection one by one by one or more time units included in the first time unit set until the downlink control information is stopped by correctly decoding on 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 correctly decodes the downlink control information on the #1 time unit. The terminal device does not continue to perform blind detection on other time units included in the first time unit set.

Alternatively, the terminal device may perform blind detection by traversing each time unit included in the first time unit set, so that the downlink control information is correctly decoded on 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 correctly decodes the downlink control information on the #1 time unit. And the terminal device continues to perform blind detection on 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 above, 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 further indicate an identifier 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. If the first indication information does not indicate the identifier of the first time unit, the terminal device carries the data of the terminal device by using the symbol on which the downlink control information is located. The advantage of adopting this method is that the indication information can flexibly indicate the second time unit, but if the second time unit includes more time units, it is more wasteful, and the length of the DCI is different, and the number of blind detections is increased. .

Optionally, 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. This manner can accurately indicate the time unit of the downlink control information scheduling that carries the first indication information. Alternatively, the length of the bitmap may be the same as the number of time units included in the second set of time units in the first time period. In this way, the length of the bitmap becomes smaller, so that the signaling overhead can be reduced.

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

The example shown in FIG. 6 will be described as an example. When the length of the bitmap is the same as the number of the time units included in the first time period, the bitmap included in the downlink control information sent to the terminal device 1 is “00110000”, and is sent to the terminal device 2 The bitmap included in the downlink control information 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 period, the bitmap included in the downlink control information sent to the terminal device 1 is “110000”. The bitmap included in the downlink control information transmitted to the terminal device 2 is "001111".

FIG. 7 is a diagram showing a second time slot structure applied to an 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 symbols other than the first 4 symbols in the time period. The network device transmits downlink control information to the terminal device 1, the terminal device 2, the terminal device 3, and the terminal device 4, respectively, on the four symbols in the first time unit set. The downlink control information of the terminal device 1 indicates the symbol 5, the downlink control information of the terminal device 2 indicates the symbol 6, the downlink control information of the terminal device 3 indicates the symbol 7, and the downlink control information of the terminal device 4 indicates the symbol 8. 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 terminal device 1, the terminal device 2, the terminal device 3, and the terminal device 4 transmit the downlink control information. The bitmaps are "00001000", "00000100", "00000010" and "00000001" respectively. Sending to the terminal device 1, the terminal device 2, the terminal device 3, and the terminal device 4, if 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 downlink control information includes bitmaps of "1000", "0100", "0010", and "0001".

In the example of FIG. 7, optionally, the bitmap indication information may correspond to only a portion of the data area of the first time period, for example, in FIG. 7, to the terminal device 1, the terminal device. 2. The terminal device 3 and the terminal device 4 transmit downlink control information including bitmaps of “1000”, “0100”, “0010” and “0001”, respectively. In this case, the second set of time units may include time units other than the third set of time units on the first time period. At this time, the first time unit set and the third time unit set are the same. Network devices cannot send data on symbols within the control area.

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

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

Further, in this step, the processor 201 of the network device may instruct the transmitter 203 to transmit. After receiving the downlink control information, the receiver 302 may obtain the first indication information by the processor 301.

Step 503: The network device sends data to the terminal device on the second time unit indicated by the first time unit and 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 to the terminal device but also the data to the terminal device, and the network device also sends the data only to the terminal device in the second time unit, in the second time unit. Control information is not sent on the time unit. The data transmitted by the network device to the terminal device on the first time unit and the second time unit corresponds to the bit after the channel coding is performed by the same coded block.

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

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

The present invention is directed to a high frequency deployment scenario in which data transmitted to the same terminal device is carried in a first time unit and a second time unit, and the first time unit and the second time unit may be discontinuous in time. In this way, the terminal device can listen to the control channel in some pre-configured time units and indicate the symbols carrying the data channel, thereby forming a time-discontinued mini-slot, thereby being able to flexibly schedule data and is designed to be Try to be consistent with the design of slot-based control signaling. In addition, since the first time unit set can be a subset of the third time unit set, the control area can also be used to schedule data without requiring control signaling to be sent on each symbol of the control area, thereby enabling flexible control. Control signaling overhead.

It should be noted that, if the data sent to the terminal device is small, and the resource occupied by the first time unit is sufficient to accommodate the data of the terminal device, the downlink control information may not indicate the second time unit, such that The network device may transmit data to the terminal device only on the first time unit, and likewise, the terminal device may receive data only on the first time unit. In this case, for example, the design of the first indication information or the like can still refer to the description above.

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

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

Optionally, this step can be performed by the processor 201 of the network device in FIG.

For the terminal device, in the optional embodiment, before the terminal device receives the downlink control information, the method further includes: determining, by the terminal device, beam information corresponding to the first time unit. It should be noted that the embodiment of the present invention does not limit the terminal device and the network device to 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 sends the downlink control information to the terminal device by using a beam corresponding to the beam information on the first time unit, and correspondingly, the terminal device may be in the The downlink control information is received from the network device based on the beam information on a first time unit.

For example, the terminal device may use only the beam corresponding to the beam information to blindly detect the downlink control information on the first time unit, and does not need to use each of the plurality of beams to be blind on the first time unit. The downlink control information is checked, 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 transmit beam used by a network device. Of course, it is also possible that the partial time unit has a one-to-one correspondence with the transmission beam used by the network device. The different time units may correspond to the same transmit beam, or may correspond to different transmit beams.

There are several implementations of this step 501:

First, the network device can determine one of the multiple beams by itself and use the beam to transmit control information to the terminal device on the first time unit. In this case, the network device can send the information of the beam to the terminal device, so that the terminal device directly receives the downlink control information by using the information of the beam sent by the network device, so that each type of beam is not used for blind detection, and the terminal device is reduced. The number of blind detections. In this manner, the determining, by the terminal device, the beam information corresponding to the first time unit may include: determining, by the terminal device, the beam information corresponding to the first time unit according to the information of the beam sent by the network device.

Second, the terminal device can determine one beam for the first time unit from the plurality of beams, and further, the terminal device sends the information of the beam used on 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: determining, by the network device, the beam information corresponding to the first time unit according to the information of the beam sent by the terminal device.

Third, before the network device determines beam information corresponding to the first time unit in the first time unit set, the network device sends a reference signal of multiple predefined beams at a predefined location. FIG. 8 is a schematic diagram showing the relationship between a beam of a reference signal and a predefined position according to an embodiment of the present invention. Further, the reference signal may be a reference signal sent by the same port, and the predefined position may be a different time position (as shown by 8-a in FIG. 8), or the reference signals of different ports are at the same time. Position (shown as 8-b in Figure 8). 8-a shows that 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 on the four time units. Figure 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 with beam 1, beam 2, beam 3 and beam 4, respectively, on one time unit.

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

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

Optionally, the terminal device may send information about one of the multiple 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 strength of all reference signals and the 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 from the plurality of beams for the first time unit without transmitting the information of the beam to the terminal device. The default device of the terminal device will use the beam with the strongest received signal strength.

In this alternative embodiment, the information of the beam may be the time position of the beam, such as the identifier of the symbol corresponding to the beam in FIG. 8-a, or the port number of the beam corresponding reference signal, as shown in FIG. 8-b. The port number can also be the identification information of the beam.

Optionally, the network device may send the information about the beam to the terminal device by using dedicated signaling.

Further, the first time unit and the second time unit may respectively correspond to different beams. Therefore, the downlink control information further includes second indication information, where the second indication information indicates beam information on 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 at the first time unit based on beam information indicated by the first indication information and beam information indicated by the second time unit based on the second indication information. Certainly, the beam information indicated by the second indication information and the beam information indicated by the first indication information may also be the same.

Optionally, the downlink control information sent by the network device does not include information about a beam used on the second time unit, and the network indicates, in an implicit manner, that the first time unit and the second time time use the same beam. In this way, the terminal device receives data from the network device, including: the terminal device is based on the beam information in the second time unit indicated by the first time unit and the first indication information. The network device receives data.

In this alternative embodiment, since the downlink control information is transmitted only on part of the symbols of one time period, and beamforming is performed on the symbols of the downlink control information, the coverage of the control channel can be ensured.

FIG. 9 is a schematic block diagram of a terminal device 900 according to an embodiment of the present invention. Each module in the terminal device 900 is used to perform various actions or processes performed by the terminal device in the foregoing method. Here, in order to avoid redundancy, detailed The description can be referred to the description above.

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

The communication module is configured to receive downlink control information from the network device on the first time unit, where the downlink control information includes first indication information, where the first indication information indicates a second time unit, the first time unit And the second time unit is located in a first time period, where the first time period includes a first time unit set and a second time unit set, wherein the first time unit belongs to the first time unit set, The second time unit belongs to the second set of time units;

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

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

Optionally, the data received in the first time unit and the second time unit correspond to the same transport block, and the first time unit and the second time unit are discontinuous in time.

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 the first signaling from the network device, where the first signaling indicates a location of the first time unit set 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 the third time unit set in the first time period. 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 the first time unit, where the beam information is information of a transmit beam on the first time unit;

The communication module is specifically configured to receive the downlink control information by receiving the downlink control information from the network device based on the beam information on the first time unit.

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

Receiving, at the first time unit, the data from the network device based on beam information indicated by the first indication information and 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 second time unit indicated by the first time unit and 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 transmit beam;

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

For the technical effects that can be achieved in this embodiment, reference may be made to the above description, and details are not described herein again.

FIG. 10 is a schematic block diagram of a network device 1000 according to an embodiment of the present invention. Each module in the network device 1000 is used to perform various actions or processes performed by the network device in the foregoing method. The description can be referred to the description above.

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

The communication module is configured to send downlink control information to the terminal device on the first time unit, where the downlink control information includes first indication information, and the first indication information indicates a second time unit, where the first The 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, wherein the first time unit belongs to the first time unit a set, the second time unit belongs to the second set of time units;

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

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

The implementation manner of the first indication information may refer to the foregoing description.

Optionally, the communication module is further configured to send the first signaling to the terminal device, where the first signaling indicates that the first time unit is set in a middle location of 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 about a transmit beam on the first time unit;

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

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

Transmitting, by the first time unit, a beam corresponding to the beam information indicated by the first indication information and a beam corresponding to the beam information indicated by the second indication information in the second time unit, to the terminal device The data.

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

The network device transmits a reference signal on a predefined transmit beam;

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.

It should be noted that the above method embodiments may be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it 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 the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)). It should be understood that, in various embodiments of the embodiments of the present invention, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and the present invention should not be The implementation of the embodiments constitutes any limitation.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The terms "component," "module," "system," and the like, as used in this specification, are used to mean a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, 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 a computing device can be a component. One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The foregoing is only a specific embodiment of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily use the technical scope disclosed in the embodiments of the present invention. All changes or substitutions are contemplated to be within the scope of the embodiments of the invention.

Claims

A method for receiving data by a terminal device, comprising:

Receiving downlink control information from the network device on the first time unit, where the downlink control information includes first indication information, the first indication information indicating a second time unit, the first time unit and the second The time unit is located in a first time period, the first time period includes 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 The unit belongs to the second set of time units;

Receiving data from the network device within the first time unit and the second time unit indicated by the first indication information.
The method of claim 1, wherein the first indication information is a bitmap and the bitmap indicates the second time unit.
The method of claim 2 wherein said bitmap further indicates said first time unit.
The method according to any one of claims 1 to 3, wherein the data received by the terminal device in the first time unit and the second time unit corresponds to the same transport block.
The method according to any one of claims 1 to 4, wherein the first time unit and the second time unit are discontinuous in time.
A method according to any one of claims 1 to 5, characterized in that;

Before receiving the downlink control information, the device further includes:

Receiving first signaling from the network device, wherein the first signaling indicates a location of the first time unit set in the first time period.
A method according to any one of claims 1 to 6, wherein

Before the receiving the downlink control information, the method further includes: determining beam information corresponding to the first time unit, where the beam information is information of a transmit beam on the first time unit;

The receiving the downlink control information includes: receiving the downlink control information from the network device based on the beam information on the first time unit.
The method according to claim 7, wherein the downlink control information further includes second indication information, and the second indication information indicates beam information on the second time unit, where

Receiving data from the network device, including:

Receiving, at the first time unit, the data from the network device based on beam information indicated by the first indication information and beam information indicated by the second indication information in the second time unit.
The method of claim 7 wherein:

Receiving data from the network device, including:

Receiving data from the network device in the second time unit indicated by the first time unit and the first indication information based on the beam information.
The method according to any one of claims 7 to 9, wherein before the determining the beam information corresponding to the first time unit, the method further comprises:

Measuring a received signal strength of the network device on a predefined transmit beam;

And transmitting, to the network device, received signal strength information of the transmit beam and identification information of the beam.
A method for transmitting data by a network device, comprising:

Sending downlink control information to the terminal device on the first time unit, where the downlink control information includes first indication information, where the first indication information indicates a second time unit, the first time unit and the second The time unit is located in a first time period, the first time period includes 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 The unit belongs to the second set of time units;

Transmitting data to the terminal device on the first time unit and the second time unit indicated by the first indication information.
The method according to claim 11, wherein the first indication information is a bitmap, and the bitmap indicates the second time unit.
The method of claim 12 wherein said bitmap further indicates said first time unit.
The method according to any one of claims 11 to 13, wherein the data transmitted by the network device in the first time unit and the second time unit corresponds to the same transport block.
The method according to any one of claims 11 to 14, wherein the first time unit and the second time unit are discontinuous in time.
A method according to any one of claims 11 to 15 wherein:

Before the sending the downlink control information to the terminal device, the method further includes:

Transmitting the first signaling to the terminal device, wherein the first signaling indicates that the first time unit is set in a middle position of the first time period.
A method according to any one of claims 11 to 16, wherein

Before the sending the downlink control information to the terminal device, the method further includes: determining beam information corresponding to the first time unit, where the beam information is information of a transmit beam on the first time unit; among them,

The sending the downlink control information to the terminal device includes: sending, by using the beam information, the downlink control information to the terminal device on the first time unit.
The method according to claim 17, wherein the downlink control information further includes second indication information, where the second indication information indicates beam information on the second time unit, where

The sending data to the terminal device includes:

Transmitting, by the first time unit, a beam corresponding to the beam information indicated by the first indication information and a beam corresponding to the beam information indicated by the second indication information in the second time unit, to the terminal device The data.
The method of claim 17 wherein:

The sending data to the terminal device includes:

And transmitting, according to the beam corresponding to the beam information, the data to the terminal device in the second time unit indicated by the first time unit and the first indication information.
The method according to any one of claims 18 to 19, wherein before the determining the beam information corresponding to the first time unit, the method further comprises:

Transmitting a reference signal on a predefined transmit beam;

The network device receives, from the terminal device, received signal strength information of the transmit beam and identification information of the beam.

Determining beam information corresponding to the first time unit according to the received signal strength information and the identification information of the beam.
A data transmitting device, comprising: a communication module and a processing module, wherein

The communication module is configured to receive downlink control information on a first time unit, where the downlink control information includes first indication information, where the first indication information indicates a second time unit, the first time unit The second time unit is located in a first time period, where 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, where The second time unit belongs to the second time unit set;

The communication module is further configured to receive data in the second time unit indicated by the first time unit and the first indication information.
The apparatus according to claim 21, wherein said first indication information is a bitmap, and said bitmap indicates said second time unit.
The apparatus of claim 22 wherein said bitmap further indicates said first time unit.
The apparatus according to any one of claims 21 to 23, wherein the data received by the communication module in the first time unit and the second time unit corresponds to the same transport block.
The apparatus according to any one of claims 21 to 24, wherein the first time unit and the second time unit are discontinuous in time.
A device according to any one of claims 21 to 25, wherein:

The communication module is further configured to receive the first signaling, where the first signaling indicates a location of the first time unit set in the first time period.
A device according to any one of claims 21 to 26, wherein

The processing module is configured to determine beam information corresponding to the first time unit, where the beam information is information of a transmit beam on the first time unit;

The communication module is specifically configured to receive the downlink control information by receiving the downlink control information based on the beam information on the first time unit.
The device according to claim 27, wherein the downlink control information further includes second indication information, where the second indication information indicates beam information on the second time unit, where

The communication module is specifically configured to receive data as follows:

The data is received by the first time unit based on beam information indicated by the first indication information and beam information indicated by the second indication information in the second time unit.
The device according to claim 27, wherein

The communication module is specifically configured to receive data as follows:

Receiving data in the second time unit indicated by the first time unit and the first indication information based on the beam information.
A device according to any one of claims 27 to 29, wherein

The processing module is configured to measure a received signal strength on a predefined transmit beam;

The communication module is further configured to send the received signal strength information of the transmit beam and the identifier information of the beam.
A data transmitting device, comprising: a communication module and a processing module, wherein

The communication module is configured to send downlink control information on a first time unit, where the downlink control information includes first indication information, where the first indication information indicates a second time unit, the first time unit The second time unit is located in a first time period, where 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, where The second time unit belongs to the second time unit set;

The communication module is further configured to send data on the first time unit and the second time unit indicated by the first indication information.
The apparatus according to claim 31, wherein said first indication information is a bitmap, and said bitmap indicates said second time unit.
The apparatus of claim 32 wherein said bitmap further indicates said first time unit.
The apparatus according to any one of claims 31 to 33, wherein the data transmitted by the communication module in the first time unit and the second time unit corresponds to the same transport block.
The apparatus according to any one of claims 31 to 24, wherein the first time unit and the second time unit are discontinuous in time.
A device according to any one of claims 31 to 35, wherein:

The communication module is further configured to send the first signaling, where the first signaling indicates that the first time unit is set in a middle position of the first time period.
A device according to any one of claims 31 to 36, wherein

The processing module is configured to determine beam information corresponding to the first time unit, where the beam information is information of a transmit beam on the first time unit;

The communication module is further configured to send the downlink control information based on the beam information on the first time unit.
The device according to claim 37, wherein the downlink control information further includes second indication information, where the second indication information indicates beam information on the second time unit, where

The communication module is specifically configured to send data as follows:

Transmitting, by the first time unit, a beam corresponding to the beam information indicated by the first indication information and a beam corresponding to the beam information indicated by the second indication information in the second time unit.
The device according to claim 37, wherein

The communication module is specifically configured to send data as follows, including:

And transmitting, according to the beam corresponding to the beam information, the data in the second time unit indicated by the first time unit and the first indication information.
A device according to any one of claims 37 to 39, wherein

The communication module is further configured to: send a reference signal on a predefined transmit beam; and receive received signal strength information of the transmit beam and identifier information of the beam;

The processing module is configured to determine, according to the received signal strength information and the identifier information of the beam, beam information corresponding to the first time unit.
A data transmitting device, comprising:

Processor, and

A computer readable storage medium for storing the program, wherein the program, when executed, is implemented as claimed in any one of claims 1 to 10.
A data receiving device, comprising:

Processor, and

A computer readable storage medium for storing the program, wherein the program, when executed, is implemented as claimed in any one of claims 11 to 20.
A computer readable storage medium for storing a program, the program being implemented, the method of any one of claims 1 to 20 being implemented.