WO2018103100A1

WO2018103100A1 - Method and device for transmitting uplink data

Info

Publication number: WO2018103100A1
Application number: PCT/CN2016/109306
Authority: WO
Inventors: 张兴炜; 时洁; 孙迎花; 刘哲; 黎超
Original assignee: 华为技术有限公司
Priority date: 2016-12-09
Filing date: 2016-12-09
Publication date: 2018-06-14
Also published as: CN109983813A; CN109983813B

Abstract

A method and a device for transmitting uplink data. The method comprises: a first terminal device sending a first message to a network device, wherein the first message indicates that the first terminal device requests to perform uplink data transmission by using a non-scheduled resource; and after sending the first message, the first terminal device transmitting uplink data to the network device by using the non-scheduled resource. By sending a first message before transmitting uplink data to a network device, the network device is able to determine, according to the first message, a first terminal device needing to transmit uplink data by using a non-scheduled resource. Thus, after the network device receives the first message, if the uplink data is not received within a specified time period, the network device can determine that an error has occurred in the transmission of the uplink data. Accordingly, feedback information with respect to the uplink data can be transmitted to the first terminal device, and the first terminal device retransmits the uplink data according to the feedback information, thereby enhancing reliability and accuracy of uplink transmission.

Description

Method and device for transmitting uplink data

Technical field

The present application relates to the field of communications and, more particularly, to a method and apparatus for transmitting uplink data.

Background technique

In wireless communication, data transmission is required between the network device and the terminal device, the network device sends downlink data to the terminal device, and the terminal device sends uplink data to the network device.

With the development and advancement of the communication technology, a feedback mechanism is known, that is, after receiving the uplink data, the network device notifies the terminal device whether the transmission of the uplink data is accurate by sending feedback information to the terminal device, thereby determining whether it is needed. A retransmission process for the uplink data is performed.

In addition, a technology for transmitting uplink data based on a non-scheduled resource is known. In this technology, when the terminal device sends uplink data to the network device by using the unscheduled resource, the identifier information of the terminal device is generated after the scrambling information and the uplink data. Send to the network device together.

Therefore, in the technology for transmitting uplink data based on the unscheduled resource, if the uplink transmission fails, the network device cannot obtain the scrambling information, and the network device cannot know which terminal device the uplink data that was erroneous is sent, and thus cannot The feedback on the uplink transmission is performed, and the terminal device cannot determine whether retransmission processing for the uplink data needs to be performed, which seriously affects the reliability and accuracy of the uplink transmission.

Summary of the invention

The present application provides a method and apparatus for transmitting uplink data, which can support improved reliability and accuracy of transmitting uplink data.

The first aspect provides a method for transmitting uplink data, where the method includes: the first terminal device sends a first message to the network device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource; After transmitting the first message, the first terminal device sends uplink data to the network device by using a scheduling resource.

Before transmitting the uplink data to the network device by using the unscheduled resource, the first terminal device first sends a first message to the network device, so that the network device determines, according to the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource. And sending the first message and the uplink data separately to the network device, so that after receiving the first message, the network device is within a specified time If the uplink data is not received, the network device may determine that the transmission of the uplink data is incorrect, so that feedback information for the uplink data (eg, negative acknowledgement NACK information) may be transmitted to the terminal device, thereby enabling the terminal device to The feedback information performs retransmission processing on the uplink data, thereby improving the reliability and accuracy of the uplink transmission.

With reference to the first aspect, in a first implementation manner of the first aspect, the first message is carried on a first resource; the first resource is corresponding to the first terminal device, or the first message carries the first The device identifier of a terminal device.

The first resource that carries the first message is associated with the first terminal device, so that the network device determines, according to the received first message, the first resource that carries the first message, so that the first resource needs to be determined according to the first resource. The first terminal device that performs the uplink data transmission without the scheduling resource; or the device identifier of the first terminal device is carried by the first message, so that the network device determines, according to the device identifier of the first terminal device carried in the first message, The first terminal device that needs to perform uplink data transmission through the unscheduled resource, so that the communication between the network device and the terminal device is more reliable.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the first terminal device receives a second message that is sent by the network device, where the second message is used to indicate that the network device correctly receives the The first message is sent by the first terminal device to the network device by using the unscheduled resource, and the first terminal device sends the uplink data to the network device by using the unscheduled resource according to the second message.

The first terminal device receives the second message sent by the network device for the first message, where the second message is used to indicate that the network device correctly receives the first message, so that the first terminal device passes the second message according to the second message. The scheduling resource sends uplink data to the network device, so that communication between the network device and the terminal device is more reliable.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the receiving, by the first terminal device, the second message that is sent by the network device, the first terminal device receiving the second resource a second message sent by the network device, where the second resource is configured by the network device, or the second resource is determined according to the first resource, where the first resource is sent by the first terminal device to use the first message resource of.

Optionally, the second resource may be determined by a method of formula calculation. The second resource used by the network device to send the second message is determined according to the first resource by establishing a functional relationship of the second resource with respect to the first resource.

In combination with the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, The first terminal device sends the uplink data to the network device by using the unscheduled resource, where the first terminal device sends the uplink data to the network device on the third resource, where the third resource belongs to the unscheduled resource, where the third resource belongs to the third resource. The first resource is determined by the first terminal device to send the first message, and the second resource is the resource used by the first terminal device to receive the second message. The second message is used to indicate that the network device correctly receives the first message.

Optionally, the third resource may be determined by a method of formula calculation. The third resource used by the first terminal device to send uplink data is determined according to the first resource by establishing a functional relationship of the third resource with respect to the first resource.

Optionally, the third resource may be determined by a method of formula calculation. The third resource used by the first terminal device to send uplink data is determined according to the second resource by establishing a functional relationship of the third resource with respect to the second resource.

Optionally, the third resource may be determined by a method of formula calculation, by establishing a functional relationship between the first resource and the second resource, and determining, by using the first resource and the second resource, that the first terminal device sends uplink data. The third resource used.

Transmitting, by the first terminal device, the first message to the network device, so that the network device determines, according to the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, even if the first terminal device uses the randomly selected unscheduled resource. The uplink data transmission can also notify the first terminal device in a targeted manner when the network device does not receive the uplink data sent by the first terminal device, thereby improving the reliability of transmitting uplink data between the network device and the terminal device.

Determining the third resource by using the first resource and/or the second resource, so that at least part of the plurality of unscheduled resources and the at least part of the plurality of terminal devices are in one-to-one correspondence, thereby reducing the scheduling The occurrence of a conflict when multiple terminal devices compete for the same unscheduled resource in resource transmission.

With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the third resource is specifically in a resource pool, where the resource pool is configured by the network device.

With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the first resource is located in the first subframe, the third resource is located in the second subframe, and the first resource is the first terminal The device sends the resource used by the first message, where the second subframe is the i-th subframe after the first subframe, i≥1, where i is a preset value, or i is configured by the network device.

The second subframe in which the third resource used for transmitting the uplink data is located is located in the first transmission After the first subframe in which the first resource is used, the second subframe may be the next adjacent subframe after the first subframe, or may be spaced apart from the first subframe by a fixed length of time. a subframe after the first subframe, so that after the network device correctly receives the first message sent by the first terminal device, the uplink data sent by the first terminal device is more purposefully received, thereby improving the network device and the terminal device. The reliability of transmitting upstream data.

With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, the method further includes: receiving, by the first terminal device, feedback information that is sent by the network device for the uplink data, where the feedback information includes Acknowledging ACK information and/or negative acknowledgment NACK information; the first terminal device determines whether to retransmit the uplink data according to the feedback information.

Sending, by the first terminal device, the first message to the network device, so that the network device determines, according to the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, and when the network device receives the uplink data sent by the first terminal device And sending a positive acknowledgement ACK message to the first terminal device, where the positive acknowledgement ACK information is used to notify the first terminal device that the network device has correctly received the uplink data sent by the first terminal device, and the first terminal device is prevented from repeatedly transmitting the uplink data. When the network device does not receive or does not correctly receive the uplink data sent by the first terminal device, sends a negative acknowledgement NACK message to the first terminal device, where the negative acknowledgement NACK information is used to notify the first terminal device that the network device does not receive or not The uplink data sent by the first terminal device is correctly received, and the first terminal device is triggered to retransmit the uplink data, thereby improving the reliability of transmitting uplink data between the network device and the terminal device.

With reference to the first aspect and the foregoing implementation manner, in the eighth implementation manner of the first aspect, the first terminal device sends the uplink data to the network device by using the unscheduled resource, including: the first terminal device uses the first transmission The parameter sends the uplink data to the network device by using the unscheduled resource; the first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource, where the first resource is sent by the first terminal device a resource used by the first message, where the second resource is a resource used by the first terminal device to receive the second message, where the second message is used to indicate that the network device correctly receives the first message, where the third resource is the first The terminal device sends the unscheduled resource used by the uplink data.

With reference to the first aspect and the foregoing implementation manner, in a ninth implementation manner of the first aspect, the first transmit parameter includes at least one of the following: a transmit power, a code domain resource, a modulation and coding scheme, an MCS, and a redundancy version, RV. , frequency domain frequency hopping, carrier type, resource allocation, etc.

In a second aspect, a method for transmitting uplink data is provided, the method comprising: receiving, by a network device a first message, the first message is sent by the first terminal device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource; and determining, according to the first message, that the first terminal device needs to pass After the uplink data transmission is performed by the unscheduled resource, the network device receives the uplink data sent by the first terminal device by using the unscheduled resource.

Before transmitting the uplink data to the network device by using the unscheduled resource, the first terminal device first sends a first message to the network device, so that the network device determines, according to the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource. And sending the first message and the uplink data separately to the network device, so that after the network device receives the first message, if the uplink data is not received within the specified time, the network device may determine that the uplink data transmission error occurs. Therefore, feedback information (for example, negative acknowledgement NACK information) for the uplink data may be transmitted to the terminal device, so that the terminal device can perform retransmission processing for the uplink data based on the feedback information, thereby improving uplink transmission. Reliability and accuracy.

With reference to the second aspect, in a first implementation manner of the second aspect, the first message is carried on the first resource; the first resource is corresponding to the first terminal device, or the first message carries the first The device identifier of a terminal device. The method further includes: determining, by the network device, the first message is sent by the first terminal device according to the device identifier of the first terminal device or the first resource.

With reference to the second aspect and the foregoing implementation manner, in a second implementation manner of the second aspect, after determining that the first message sent by the first terminal device is correctly received, the network device sends the first terminal device to the first terminal device The second message is used to indicate that the network device correctly receives the first message.

In combination with the second aspect and the foregoing implementation manner, in a third implementation manner of the second aspect, the The network device sends the second message to the first terminal device, where the network device sends the second message to the first terminal device on the second resource, where the second resource is configured by the network device, or the The second resource is determined according to the first resource, where the first resource is a resource used by the first terminal device to send the first message.

With reference to the second aspect and the foregoing implementation manner, in a fourth implementation manner of the second aspect, the network device receives the uplink data sent by the first terminal device by using the unscheduled resource, including: the network device is on the third resource Receiving uplink data sent by the first terminal device, where the third resource belongs to an unscheduled resource, where the third resource is randomly selected by the first terminal device, or the third resource is according to the first resource and/or the second resource The resource is determined, the first resource is a resource used by the first terminal device to send the first message, the second resource is a resource used by the first terminal device to receive the second message, and the second message is used to indicate the network. The device correctly receives the first message.

Determining the third resource by using the first resource and/or the second resource, so that at least part of the plurality of unscheduled resources and the at least part of the plurality of terminal devices are in one-to-one correspondence, thereby reducing the scheduling Conflicts when multiple terminal devices compete for the same unscheduled resource in resource transmission occur.

With reference to the second aspect and the foregoing implementation manner, in a fifth implementation manner of the second aspect, the first scheduling resource is specifically selected by the first terminal device from a resource pool, where the resource pool is the network device Configured.

With reference to the second aspect and the foregoing implementation manner, in a sixth implementation manner of the second aspect, the first resource is located in the first subframe, the third resource is located in the second subframe, and the first resource is the first terminal device Sending the resource used by the first message, the second subframe is the i-th subframe after the first subframe, i≥1, where i is a preset value, or i is configured by the network device.

After the second subframe in which the third resource used for transmitting the uplink data is located is located after the first subframe in which the first resource used for transmitting the first message is located, the second subframe may be after the first subframe The next adjacent subframe may be a subframe after the first subframe that is separated from the first subframe by a fixed length of time, so that after the network device correctly receives the first message sent by the first terminal device, The uplink data sent by the first terminal device is received in a targeted manner, thereby improving the reliability of transmitting uplink data between the network device and the terminal device.

With reference to the second aspect and the foregoing implementation manner, in a seventh implementation manner of the second aspect, the method further includes: the network device sending, to the first terminal device, feedback information for the uplink data, where the feedback information includes affirmative Acknowledge ACK information and/or negative acknowledgement NACK information.

With reference to the second aspect and the foregoing implementation manner, in an eighth implementation manner of the second aspect, the network device receives the uplink data sent by the first terminal device by using the unscheduled resource, including: receiving, by the network device, the unscheduled resource The first terminal device uses the uplink data sent by the first transmission parameter.

In a third aspect, an apparatus for transmitting uplink data is provided, comprising means for performing the steps of the method for transmitting uplink data in the first aspect and the implementations of the first aspect.

In a fourth aspect, an apparatus for transmitting uplink data is provided, comprising means for performing the steps of the method of transmitting uplink data in the implementations of the second aspect and the second aspect described above.

A fifth aspect provides an apparatus for transmitting uplink data, comprising a memory and a processor, the memory being for storing a computer program, the processor for calling and running the computer program from the memory, so that the terminal device performs the first aspect described above And a method of transmitting uplink data in any of its various implementations.

In a sixth aspect, an apparatus for transmitting uplink data is provided, comprising a memory and a processor, the memory being for storing a computer program, the processor for calling and running the computer program from the memory, such that the network device performs the second aspect described above And a method of transmitting uplink data in any of its various implementations.

In a seventh aspect, a computer program product is provided, the computer program product comprising: computer program code, when the computer program code is run by a processing unit, a sending unit or a processor of a network device, or a transmitter, causing the terminal device A method of transmitting uplink data in any of the above first aspects and various implementations thereof.

In an eighth aspect, a computer program product is provided, the computer program product comprising: computer program code, when the computer program code is run by a receiving unit, a processing unit or a receiver of the terminal device, or a processor, causing the network device A method of transmitting uplink data in any of the above second aspects and various implementations thereof.

A ninth aspect, a computer readable storage medium storing a program, the program causing a terminal device to perform any one of the first aspect and various implementations thereof to transmit uplink data Methods.

A tenth aspect, a computer readable storage medium storing a program, the program causing a network device to perform any one of the second aspect and various implementations thereof to transmit uplink data Methods.

DRAWINGS

1 is a schematic architectural diagram of a communication system of the present application.

2 is a schematic interaction diagram of a method of transmitting uplink data of the present application.

3 is a schematic interaction diagram of a method of transmitting uplink data of the present application.

4 is a schematic block diagram of an apparatus for transmitting uplink data of the present application.

FIG. 5 is a schematic block diagram of an apparatus for transmitting uplink data according to the present application.

FIG. 6 is a schematic structural diagram of an apparatus for transmitting uplink data according to the present application.

FIG. 7 is a schematic structural diagram of an apparatus for transmitting uplink data according to the present application.

detailed description

The technical solutions in the present application will be clearly and completely described below in conjunction with the drawings in the present application.

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.

It should be understood that the technical solution of the present application can be applied to various communication systems, for example, Global System of Mobile communication ("GSM") system, Code Division Multiple Access ("CDMA"). System, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS) or next-generation communication system.

Among them, the next-generation mobile communication system will support not only traditional communication, but also, for example, Machine to Machine (M2M) communication or Vehicle to Vehicle (V2V) communication, in which M2M communication can also be called Machine Type Communication ("MTC").

The present application describes various embodiments in connection with a terminal device. Terminal device (User Equipment, referred to as "UE") user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user Device. The terminal device may be a site (STAION, referred to as "ST") in a Wireless Local Area Networks ("WLAN"), and may be a cellular phone, a cordless phone, or a Session Initiation Protocol ("SIP"). Telephone, Wireless Local Loop ("WLL") station, Personal Digital Assistant ("PDA") device, handheld device with wireless communication function, computing device or connected to wireless modulation encoder Other processing devices, in-vehicle devices, wearable devices, and next-generation communication systems, for example, terminal devices in fifth-generation (5G) networks or public land mobile networks in the future (Public Land Mobile) Network, referred to as "PLMN" for short, etc. in the network.

Moreover, the present application describes various embodiments in connection with a network device. The network device may be a network device or the like for communicating with the mobile device. The network device may be an access point (ACCESS POINT, abbreviated as "AP") in the WLAN, or a base station in the GSM or CDMA (Base Transceiver Station, referred to as "BTS" ”), may also be a base station (NodeB, “NB” for short) in WCDMA, or an evolved base station (Evolutional Node B, “eNB” or “eNodeB”) in LTE, or a relay station or an access point. Either an in-vehicle device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network.

The method and apparatus provided by the present application can be applied to a terminal device or a network device, which 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 present application, the specific configuration of the executor of the method of transmitting a signal is not particularly limited as long as it can pass the program of the code of the method of transmitting the signal of the present application, and the transmission signal according to the present application. The method can be communicated. For example, the execution body of the method for transmitting feedback information of the present application may be a terminal device or a network device, or a functional module that can call a program and execute a program in the terminal device or the network device.

Furthermore, various aspects or features of the present application can 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, the 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.), an optical disk (eg, a compact disc ("CD"), a digital versatile disc (Digital Versatile Disc) , referred to as "DVD"), etc., smart cards and flash memory devices (for example, 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.

1 is a schematic diagram of a communication system to which a method and apparatus for transmitting an uplink control signal of the present application is applied. As shown in FIG. 1, the communication system 100 includes a network device 102 that can include 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) , encoder, 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 122.

Terminal devices

116 and 122 can 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 for communicating over wireless communication system 100. Suitable for equipment.

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 forward link 118 and receive information from terminal device 116 over reverse link 120. 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, the forward link 118 can utilize different frequency bands than those used by the reverse link 120, and the forward link 124 can be utilized and reversed. Different frequency bands used for link 126.

For example, in the Time Division Duplex ("TDD") system and full double In the Full Duplex system, the forward link 118 and the reverse link 120 can use a common frequency band, and the forward link 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. In the process in which network device 102 communicates with

terminal devices

116 and 122 via

forward links

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

forward links

118 and 124. In addition, when the network device 102 uses beamforming to transmit signals to the randomly dispersed

terminal devices

116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices 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.

It should be noted that, in the present application, the sending device may enable the foregoing network device 102 to be a terminal device (for example, the terminal device 116 or the terminal device 122). Correspondingly, the receiving device may enable the terminal device (for example, The terminal device 116 or the terminal device 122) may also be the network device 102, which is not specifically limited herein.

In the prior art, when the uplink data is transmitted based on the unscheduled resource, the resource that the terminal device sends the uplink data is randomly selected by the terminal device, and is not a resource allocated by the network device through scheduling. Therefore, different terminal devices may be at the same time. The uplink data is transmitted on the same resource, which causes conflicts between different terminal devices and affects the reliability of transmitting uplink data between the network device and the terminal device.

The technical solution of the present application is to solve the problem of transmitting uplink data between a network device and a terminal device. The problem of the reliability, before the terminal device sends the uplink data to the network device, first sending the first message to the network device, so that the network device determines, according to the first message, the terminal device that needs to perform uplink data transmission through the unscheduled resource, and further The uplink data sent by the terminal device through the unscheduled resource is received in a targeted manner, thereby improving the reliability of transmitting uplink data between the network device and the terminal device.

FIG. 2 shows a schematic flow chart of a method of transmitting uplink data according to the present application. The terminal device in FIG. 2 may be the terminal device in the

terminal devices

116, 122 in FIG. 1; the network device may be the network device 102 in FIG. Of course, in actual systems, the number of network devices and terminal devices may not be limited to the examples in this application, and details are not described herein below.

The first terminal device sends a first message to the network device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource.

Specifically, the first message may be at least one of the following messages: Scheduling Request ("SR"), sequence/preamble, codebook/codeword, interleaving pattern, mapping pattern, demodulation reference Signals, airspace resources, power domain resources, and device to device ("D2D") discovery signals.

Optionally, the first message is carried on the first resource, and the first resource that carries the first message corresponds to the first terminal device.

Specifically, before the uplink data is sent, the first terminal device sends a first message to the network device on the first resource of the multiple communication resources, where the first message is used to indicate that the first terminal device needs to use the unscheduled resource. The uplink data is transmitted, and the plurality of communication resources are in one-to-one correspondence with the plurality of terminal devices, including the terminal device, so that the network device determines, according to the first resource, that the first message is sent by the first terminal device. For example, the first terminal device sends a scheduling request SR on a specific resource, and the network device determines, according to the specific resource, the first terminal device that sends the SR. The one-to-one correspondence between the plurality of communication resources and the plurality of terminal devices, including the terminal device, may be a mapping relationship, or a terminal device may be bound to a certain resource, the mapping relationship or The binding relationship between the terminal device and the resource may be configured by the network device through radio resource control (Radio Resource Control, RRC) signaling and broadcast signaling. The mapping relationship may be a mapping relationship table, for example, may be used. In the manner of the table, the terminal device corresponding to the first resource is determined as the first terminal device. In order to ensure Ultra Reliable and Low Latency Communications (URLLC), the SR transmission period is only reserved for a small period. For example, the SR transmission period is 1ms, 2ms, 5ms, 10ms, 20ms. Etc., eliminate the original long period, such as 40ms, 80ms and so on.

Optionally, the first message carries the device identifier of the first terminal device.

Specifically, before transmitting the uplink data, the first terminal device sends a first message to the network device, where the first message carries the device identifier of the first terminal device, and the network device determines, according to the first message, the first terminal device. The device identifier, which in turn determines the first terminal device. The first message may be at least one of the following messages: Scheduling Request ("SR"), sequence/preamble, codebook/codeword, interleaving pattern, mapping pattern, demodulation reference signal, airspace Resources, power domain resources, and device to device ("D2D") discovery signals. The device identifier of the first terminal device carried in the first message may be at least one of the following information: a UE ID, a Cell Radio Network Temporary Identifier (C-RNTI), or other Identifies the identifier of the first terminal device. For example, the first message carries the device identifier UE ID of the first terminal device, and the network device determines the first terminal device according to the UE ID of the first terminal device carried in the first message; for example, the first message carries The cell radio network temporarily identifies the C-RNTI of the cell in which the first terminal device is located, and the network device determines the first terminal device in the cell according to the cell radio network temporary identifier C-RNTI of the cell where the first terminal device is located.

It should be understood that the present application only uses the first message as the above information as an example, but the application is not limited thereto, and the first message may also be other information.

The network device receives the first message, where the first message is sent by the first terminal device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource.

Specifically, before receiving the uplink data sent by the first terminal device, the network device receives the first message sent by the terminal device, where the first message is used to enable the network device to determine that the first terminal device needs to perform uplink data by using the unscheduled resource. transmission.

230. After determining that the first message sent by the first terminal device is correctly received, the network device sends a second message to the first terminal device.

Specifically, after the network device determines that the first message sent by the first terminal device is correctly received, the network device may determine, according to the received first message, which terminal device requests to transmit uplink data on the unscheduled resource, for example, The network device determines, according to the first message, that the first terminal device requests to transmit uplink data on the unscheduled resource, and the network device sends a second message to the first terminal device, where the second message is used to indicate that the network device correctly receives the network device. The first message, the second message may be further used to indicate that the network device allows the first terminal device to perform uplink data transmission by using a non-scheduled resource, where the second message may be positive acknowledgement ACK information or carry the first transmission Other information of the parameter, the first transmission parameter includes at least one of the following: a transmission power, a code domain resource, a Modulation and Coding Scheme ("MCS"), and a redundancy version ("RedVancy Version") ), Frequency Hopping (FH), carrier type, carrier number, and resource allocation (Resource Allocation, referred to as "RA"). The frequency domain frequency hopping is used to indicate whether frequency hopping is performed in the frequency domain, or the resource location indicating the frequency domain hopping; the resource allocation is used to indicate the allocated resource, or indicate the type of resource allocation.

Optionally, the network device sends the second message to the first terminal device on the second resource.

Specifically, after the network device correctly receives the first message sent by the first terminal device, the network device sends a second message to the first terminal device, where the second message is used to indicate that the network device correctly receives the first message. The message may be used to indicate that the network device allows the first terminal device to perform uplink data transmission by using the unscheduled resource. The network device may send the second message to the first terminal device on the second resource, where the second resource may be a resource specified by the system, or a resource configured by the network device by using RRC signaling or broadcast signaling; the second resource The first resource is a resource that is used by the first terminal device to send the first message. For example, a preset mapping relationship may exist between the second resource and the first resource. The mapping relationship may be configured by the network device through RRC signaling, broadcast signaling, or specified by the system. The mapping relationship may be a mapping relationship table. For example, the table may be used to send the first message to the first terminal device. The resource corresponding to the first resource is determined to be a second resource used by the network device to send the second message.

For example, the second resource may be determined by a method of formula calculation, by establishing a functional relationship of the second resource with respect to the first resource, determining, according to the first resource, the second resource used by the network device to send the second message, for example, using the first resource. The resource index modulates the total number of second resources.

240. The first terminal device receives a second message sent by the network device.

Specifically, before sending the uplink data to the network device, the first terminal device receives the second message sent by the network device, where the second message is used to indicate that the network device correctly receives the first message, and the second message is further used. And indicating that the network device allows the first terminal device to perform uplink data transmission by using the unscheduled resource, and the first terminal device sends the uplink data to the network device by using the unscheduled resource according to the second message.

Optionally, when the first terminal device does not receive the second message sent by the network device in the first time window, the first terminal device resends the first message to the network device, or obtains the unscheduled resource in a competitive manner. Send uplink data to the network device.

Specifically, in a first time window after the first terminal device sends the first message to the network device (for example, a≥1 in a millisecond), if the first terminal device does not receive the second message sent by the network device, And the first terminal device sends a first message to the network device by using the first resource, where the first message is used to indicate that the first terminal device requests to perform uplink data transmission by using the unscheduled resource, or the first terminal device obtains the content by using a contention method. The resources are scheduled to send uplink data to the network device.

250. The first terminal device sends uplink data to the network device by using a scheduling-free resource.

Optionally, after the first message is sent, the first terminal device sends the uplink data to the network device by using the unscheduled resource.

Optionally, after receiving the second message sent by the network device, the first terminal device sends the uplink data to the network device by using the unscheduled resource.

Optionally, the first terminal device sends uplink data to the network device on the third resource, where the third resource belongs to the unscheduled resource.

Optionally, the third resource is randomly selected by the first terminal device.

Specifically, after the first message is sent, or after the second message sent by the network device is correctly received, the first terminal device sends the uplink data to the network device by using the unscheduled resource, where the unscheduled resource may be a resource specified by the system. Or a resource that is configured by the network device by using RRC signaling or broadcast signaling. For example, the unscheduled resource may be a resource pool allocated by the system or allocated by the network device, where the resource pool includes multiple unscheduled tasks including the third resource. The first terminal device randomly selects the third resource in the resource pool to send uplink data to the network device.

Optionally, the third resource is determined according to the first resource, where the first resource is a resource used by the first terminal device to send the first message.

Specifically, after the first message is sent, or after the second message sent by the network device is correctly received, the first terminal device sends uplink data to the network device by using the third resource, where the third resource may be determined according to the first resource. The first resource is a resource used by the first terminal device to send the first message. For example, a preset mapping relationship may exist between the third resource and the first resource, where the mapping relationship may be adopted by the network device through the RRC. The signaling and the broadcast signaling are configured or specified by the system, and the mapping relationship may be a mapping relationship table. For example, the table may be used to check the first resource that is used by the first terminal device to send the first message. The scheduling resource determines a third resource used by the first terminal device to send uplink data. The mapping relationship between the third resource and the terminal device may be a one-to-one relationship, or may be a one-to-many relationship. For example, the third resource only corresponds to one terminal device, that is, only one terminal device can occupy the third device. Resource sending uplink number The third resource corresponds to multiple terminal devices, that is, multiple different terminal devices jointly occupy the third resource to send uplink data.

For example, the third resource may be determined by a method of formula calculation, by establishing a functional relationship of the third resource with respect to the first resource, determining, according to the first resource, a third resource used by the first terminal device to send uplink data, for example, using The first resource index modulates the total number of third resources.

Optionally, the third resource is determined according to the second resource, where the second resource is a resource used by the first terminal device to receive the second message.

Specifically, after the second message sent by the network device is correctly received, the second message is used to indicate that the network device correctly receives the first message, and the second message is further used to indicate that the network device allows the first terminal. The device performs the uplink data transmission by using the unscheduled resource, and the first terminal device sends the uplink data to the network device by using the third resource according to the second message, where the third resource may be the resource determined according to the second resource, where the second resource is The first terminal device receives the resource used by the second message, for example, a preset mapping relationship may exist between the third resource and the second resource, where the mapping relationship may be configured by the network device by using RRC signaling and broadcast signaling. The mapping relationship may be a mapping relationship table. For example, the unscheduled resource corresponding to the second resource used by the first terminal device to receive the second message may be determined as the first terminal device by using a lookup table. The third resource used to send upstream data. The mapping relationship between the third resource and the terminal device may be a one-to-one relationship, or may be a one-to-many relationship. For example, the third resource only corresponds to one terminal device, that is, only one terminal device can occupy the third device. The resource sends uplink data; the third resource corresponds to multiple terminal devices, that is, multiple different terminal devices jointly occupy the third resource to send uplink data.

For example, the third resource may be determined by a method of formula calculation, by establishing a functional relationship of the third resource with respect to the second resource, and determining, according to the second resource, the third resource used by the first terminal device to send the uplink data, for example, using The second resource index modulates the total number of the third resources.

Optionally, the third resource is determined according to the first resource that is used by the first terminal device to send the first message, and the second resource is that the first terminal device receives the first resource. The resources used by the second message.

Specifically, after the second message sent by the network device is correctly received, the second message is used to indicate that the network device correctly receives the first message, and the second message is further used to indicate that the network device allows the first terminal. The device performs the uplink data transmission by using the unscheduled resource, and the first terminal device sends the uplink data to the network device by using the third resource according to the second message, where the third resource may be a root And the first resource is a resource used by the first terminal device to send the first message, where the second resource is a resource used by the first terminal device to receive the second message, for example, the first resource is determined by the first resource and the second resource. A preset mapping relationship may exist between the three resources and the first resource and the second resource, where the mapping relationship may be configured by the network device through RRC signaling, broadcast signaling, or specified by the system, where the mapping relationship may be mapping. The relationship table, for example, may use a table lookup method to perform different combinations of the resource used by the first terminal device to send the first message and the second resource used by the first terminal device to receive the second message, each of the first resource and the first resource. The combination of the two resources corresponds to an unscheduled resource, and the unscheduled resource corresponding to the combination of the first resource and the second resource is determined as the third resource used by the first terminal device to send uplink data. The mapping relationship between the third resource and the terminal device may be a one-to-one relationship, or may be a one-to-many relationship. For example, the third resource only corresponds to one terminal device, that is, only one terminal device can occupy the third device. The resource sends uplink data; the third resource corresponds to multiple terminal devices, that is, multiple different terminal devices jointly occupy the third resource to send uplink data.

For example, the third resource may be determined by a method of formula calculation, by establishing a functional relationship between the first resource and the second resource, and determining, by using the first resource and the second resource, that the first terminal device sends uplink data. The third resource, for example, uses the first resource index and the second resource index to modulate the total number of the third resources.

It should be understood that the present application only describes the method for determining the third resource by using the foregoing three methods for determining the third resource, but the application is not limited thereto.

Optionally, the first resource is located in the first subframe, and the third resource is located in the second subframe, where the first resource is a resource used by the first terminal device to send the first message, and the second subframe is the first The i-th subframe after a subframe, where i is a preset value, or i is configured by the network device.

Specifically, the first resource used by the first terminal device to send the first message may be located at the location of the first subframe of the time domain resource, and the third resource used by the first terminal device to send the uplink data may be located in the time domain resource. The position of the second subframe, the second subframe may be a certain subframe after the first subframe, for example, the second subframe may be the ith subframe after the first subframe, i≥1, that is, The second subframe may be the next subframe adjacent to the first subframe, or may be the second subframe after the first subframe or the fourth subframe after the first subframe, where the second subframe is no longer List one by one. The value i may be a preset value, for example, the value i may be a fixed value pre-configured by a protocol; the value i may also be a value configured by the network device through higher layer signaling or physical layer signaling.

It should be understood that the third resource is described by taking the third resource as the time domain resource as an example, but The implementation of the application is not limited thereto, and the third resource may also be other resources than the time domain resource.

Optionally, the first terminal device sends the uplink data to the network device by using the first transmission parameter by using the unscheduled resource.

Optionally, the first transmission parameter includes at least one of the following: a transmit power, a code domain resource, a Modulation and Coding Scheme ("MCS"), and a redundancy version ("RV"). Frequency hopping (FH), carrier type, carrier number, and resource allocation (Resource Allocation, referred to as "RA"). The frequency domain frequency hopping is used to indicate whether frequency hopping is performed in the frequency domain, or the resource location indicating the frequency domain hopping; the resource allocation is used to indicate the allocated resource, or indicate the type of resource allocation.

Optionally, the first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource, where the first resource is a resource used by the first terminal device to send the first message, where The second resource is a resource used by the first terminal device to receive the second message, where the third resource is an unscheduled resource used by the first terminal device to send uplink data.

Specifically, after the first message is sent, or after the second message sent by the network device is correctly received, the second message is used to indicate that the network device correctly receives the first message, and the second message is further used to indicate The network device allows the first terminal device to perform uplink data transmission by using the unscheduled resource, and the first terminal device sends the uplink data to the network device by using the first transmission parameter by using the first scheduling parameter, and the first transmission parameter may be according to the first resource and the second At least one of the resource or the third resource is determined. For example, the first terminal device determines, according to the second resource, the resource allocation RA in the first transmission parameter, where the second resource is the resource used by the first terminal device to receive the second message, that is, the first terminal device may determine to send according to the second resource. For the resource information used by the uplink data, the network device may send the second message to the first terminal device, but the network device sends the second message only on one or several resources of the multiple resources, and the network device passes the Selecting a different resource from the plurality of resources to send a second message to indicate different specific information to the first terminal device, where the specific information is equivalent to a simplified uplink grant authorization ("UL Grant"), the specific information The first terminal device may include the resource information of the uplink data, for example, the network device sends the second message by using the second resource, where the specific information includes information about the third resource used by the first terminal device to send the uplink data, where the first terminal device The uplink data is sent to the network device using the third resource according to the indication of the specific information.

It should be understood that the present application only uses the second resource as an example to describe the determination of the first transmission parameter, but the application is not limited thereto.

260. After determining, by the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, the network device receives the uplink data sent by the first terminal device by using the unscheduled resource.

Specifically, after determining, according to the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, or after sending the second message to the first terminal device, the second message is used to indicate that the network device is correct. Receiving the first message, the second message is further configured to indicate that the network device allows the first terminal device to perform uplink data transmission by using the unscheduled resource, and the network device receives the uplink data sent by the first terminal device by using the unscheduled resource.

270. The network device sends, to the first terminal device, feedback information for the uplink data, where the feedback information includes at least one of the acknowledgement ACK information and the negative acknowledgement NACK information, so that the first terminal device is configured according to the feedback information. , to determine whether to retransmit the uplink data.

Optionally, as shown in FIG. 2, the network device sends acknowledgement ACK information for the uplink data to the first terminal device.

Specifically, if the network device correctly receives the uplink data sent by the first terminal device, that is, whether the first terminal device receives or correctly receives the first message sent by the first terminal device, the network device correctly receives the first message. The uplink data sent by the terminal device, the network device sends an acknowledgement ACK message to the first terminal device, where the acknowledgement ACK information is used to notify the first terminal device that the network device has correctly received the uplink data sent by the first terminal device. The resource that the network device sends the acknowledgement ACK information may be configured by the network device through RRC signaling, broadcast signaling, or specified by the system.

Optionally, as shown in FIG. 3, the network device sends negative acknowledgement NACK information for the uplink data to the first terminal device.

Specifically, if the network device correctly receives the first message sent by the first terminal device, but does not receive the first terminal device in the second time window (for example, within b milliseconds, 1≤b≤a) The uplink data sent after the first message or the received information of the uplink data sent by the first terminal device after the first message is incorrect, and the network device sends a negative acknowledgement NACK message to the first terminal device, where the negative acknowledgement NACK information is used. The information that the first terminal device network device does not receive the uplink data or the received uplink data is incorrect. The resource that the network device sends the negative acknowledgement NACK information may be configured by the network device through RRC signaling, broadcast signaling, or specified by the system.

280. The first terminal device receives a feedback message sent by the network device for the uplink data. And the feedback information includes at least one of the acknowledgement ACK information and the negative acknowledgement NACK information; the first terminal device determines, according to the feedback information, whether to retransmit the uplink data.

Optionally, as shown in FIG. 2, the first terminal device receives the acknowledgement ACK information sent by the network device for the uplink data.

Specifically, after the first terminal device sends the uplink data to the network device, the first terminal device receives the feedback information sent by the network device for the uplink data. If the feedback information sent by the network device received by the first terminal device is the acknowledgment ACK information, the first terminal device considers that the network device has correctly received the uplink data sent by the first terminal device.

Optionally, as shown in FIG. 3, the first terminal device receives negative acknowledgement NACK information sent by the network device for the uplink data.

Specifically, in a first time window after the first terminal device sends the uplink data (for example, a≥1 in a millisecond), if the feedback information sent by the network device received by the first terminal device is negative acknowledgement NACK information, At this time, the first terminal device retransmits the uplink data to the network device by using the third resource, or the first terminal device resends the first message to the network device in the next cycle of the first message sending period; if the first terminal device is sending the uplink In the first time window after the data (for example, within a millisecond, a≥1), the acknowledgement ACK message sent by the network device is not received, or the received acknowledgement ACK information is incorrect, and the first terminal device uses the third resource direction. The network device resends the uplink data, or the first terminal device resends the first message to the network device in the next cycle of the first message sending period; if the first terminal device is in the first time window after sending the uplink data (for example, a Within a millisecond, a≥1) did not receive the negative acknowledgement NACK message sent by the network device. At this time, the first terminal device considers that the network device has received correctly. The uplink data transmitted from the first terminal device.

It should be noted that the foregoing enumerated process is only an exemplary description, and the application is not limited thereto. For example, step 230 and step 240 may not be performed, that is, the network device receives the first message sent by the first terminal device. Then, the network device does not need to send the second message to the first terminal device, and only needs to receive the uplink data sent by the first terminal device after receiving the first message sent by the first terminal device.

Therefore, the method for transmitting the uplink data of the present application, before the first terminal device sends the uplink data to the network device, first sends the first message to the network device, so that the network device determines, according to the first message, that the uplink data needs to be performed through the unscheduled resource. Transmitting, by the first terminal device, the uplink data sent by the first terminal device through the unscheduled resource, and the first message and the upper The row data is separately sent to the network device to improve the reliability of transmitting uplink data between the network device and the first terminal device.

4 is a schematic block diagram of an apparatus 300 for transmitting uplink data in accordance with the present application. As shown in FIG. 4, the apparatus 300 includes a transmitting unit 310.

The sending unit 310 is configured to send a first message to the network device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource, and the sending unit 310 is further configured to: after sending the first message, The uplink data is sent to the network device through the unscheduled resource.

Optionally, the first message is carried on the first resource; the first resource corresponds to the device, or the first message carries the device identifier of the device.

Optionally, the device 300 further includes:

The receiving unit 320 is configured to receive a second message sent by the network device, where the second message is used to indicate that the network device correctly receives the first message;

The device 300 also includes:

The processing unit 330 is configured to determine, according to the second message, that the uplink data is sent to the network device by using the unscheduled resource.

Optionally, the receiving unit 320 is further configured to:

Receiving, on the second resource, a second message sent by the network device, where

The second resource is configured by the network device, or

The second resource is determined according to the first resource, where the first resource is a resource used by the device to send the first message.

Optionally, the sending unit 310 is further configured to:

Transmitting uplink data to the network device on a third resource, where the third resource belongs to an unscheduled resource, where the third resource is randomly selected by the device, or

The third resource is determined according to the first resource and the second resource, where the first resource is a resource used by the device to send the first message, and the second resource is a resource used by the device to receive the second message, where The second message is used to indicate that the network device correctly receives the first message.

Optionally, the third resource is specifically in the resource pool, where the resource pool is configured by the network device.

Optionally, the first resource is located in the first subframe, and the third resource is located in the second subframe, where the first resource is a resource used by the apparatus to send the first message, and the second subframe is the first subframe. After the i-th subframe, i≥1, where

i is the default value, or

i is configured for the network device.

Optionally, the receiving unit 320 is further configured to:

Receiving feedback information sent by the network device for the uplink data, where the feedback information includes positive acknowledgement ACK information and/or negative acknowledgement NACK information;

This process 330 unit is also used to:

The device determines, according to the feedback information, whether to retransmit the uplink data.

Optionally, the sending unit 310 is further configured to:

Sending uplink data to the network device through the unscheduled resource by using the first transmission parameter, where

The first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource, where the first resource is a resource used by the device to send the first message, and the second resource is received by the device. The second message is used to indicate that the network device correctly receives the first message, and the third resource is an unscheduled resource used by the device to send uplink data.

Optionally, the first transmission parameter includes at least one of the following: a transmit power, a code domain resource, a modulation and coding scheme MCS, a redundancy version RV, a frequency domain frequency hopping, a carrier type, a resource allocation, and the like.

It should be understood that the apparatus 300 for transmitting uplink data according to the present application may correspond to the first terminal equipment in the method of the present application, and the foregoing and other operations and/or functions of the respective units in the apparatus 300 for transmitting uplink data are respectively In order to implement the corresponding process of the first terminal device in the method 200, for brevity, details are not described herein again.

Therefore, the apparatus for transmitting uplink data of the present application, before the first terminal device sends the uplink data to the network device, first sends a first message to the network device, so that the network device determines, according to the first message, that the uplink data needs to be performed through the unscheduled resource. Transmitting the first terminal device, and then receiving the uplink data sent by the first terminal device through the unscheduled resource, and separately transmitting the first message and the uplink data to the network device, respectively, and improving the network device and the first terminal device The reliability of transmitting upstream data.

FIG. 5 is a schematic block diagram of an apparatus 400 for transmitting uplink data in accordance with the present application. As shown in FIG. 5, the apparatus 400 includes a receiving unit 410.

The receiving unit 410 is configured to receive the first message, where the first message is sent by the first terminal device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource; the receiving unit 410 And the method is further configured to: after determining that the first terminal device needs to perform uplink data transmission by using the unscheduled resource according to the first message, receiving the uplink data sent by the first terminal device by using the unscheduled resource.

Optionally, the first message is carried on the first resource; the first resource corresponds to the first terminal device, or the first message carries the device identifier of the first terminal device.

Optionally, the device further includes:

The processing unit 420 is configured to determine that the first message sent by the first terminal device is correctly received;

The sending unit 430 is configured to send a second message to the first terminal device after determining that the first message sent by the first terminal device is correctly received, where the second message is used to indicate that the device correctly receives the first message

Optionally, the sending unit 430 is further configured to:

Sending the second message to the first terminal device on the second resource, where

The second resource is configured by the device, or

The second resource is determined according to the first resource, and the first resource is a resource used to receive the first message.

Optionally, the receiving unit 410 is further configured to:

Receiving, by the third resource, uplink data sent by the first terminal device, where the third resource belongs to an unscheduled resource, where

The third resource is determined according to the first resource and/or the second resource, where the first resource is a resource used for receiving the first message, and the second resource is a resource used for sending a second message, where the second message is used by the third resource. Instructing the device to correctly receive the first message.

Optionally, the third resource belongs to the resource pool, where the resource pool is configured by the device.

Optionally, the first resource is located in the first subframe, and the third resource is located in the second subframe, where the first resource is a resource used by the first terminal device to send the first message, and the second subframe is the first The i-th subframe after the sub-frame, i≥1, where

i is the default value, or

i is configured for this device.

Optionally, the sending unit 430 is further configured to:

Sending feedback information for the uplink data to the first terminal device, the feedback information including positive acknowledgement ACK information and/or negative acknowledgement NACK information.

Optionally, the receiving unit 410 is further configured to:

Receiving, by using the unscheduled resource, the uplink data sent by the first terminal device by using the first transmit parameter, where

The first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource a source, the first resource is a resource used by the device to send the first message, the second resource is a resource used by the device to receive the second message, and the second message is used to indicate that the network device correctly receives the first message, The third resource is an unscheduled resource used by the device to send uplink data.

It should be understood that the apparatus 400 for transmitting uplink data according to the present application may correspond to the network device in the method of the present application, and the above and other operations and/or functions of the respective units in the apparatus 400 for transmitting the uplink data are respectively implemented in order to implement the method. The corresponding process of the network device in 200 is not described here for brevity.

FIG. 6 is a schematic structural diagram of an apparatus 500 for transmitting uplink data according to the present application. The apparatus 500 includes:

Transmitter 510;

The processor 520;

Memory 530;

Receiver 540;

The memory 530 is configured to store an instruction, and the processor 520 is configured to execute an instruction stored by the memory 530 to control the receiver 540 to receive a signal or control the transmitter 510 to send a signal.

The transmitter 510 is configured to send a first message to the network device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource.

The transmitter 510 is also used to:

After the first message is sent, the uplink data is sent to the network device by using the unscheduled resource.

Optionally, the receiver 540 is further configured to:

Receiving a second message sent by the network device, where the second message is used to indicate that the network device is correct Receiving the first message;

The processor 520 is configured to determine, according to the second message, that the uplink data is sent to the network device by using the unscheduled resource.

Optionally, the receiver 540 is further configured to:

The second resource is configured by the network device, or

Optionally, the transmitter 510 is further configured to:

Sending uplink data to the network device on the third resource, where the third resource belongs to an unscheduled resource, where

The third resource is randomly selected by the device, or

i is the default value, or

i is configured for the network device.

Optionally, the receiver 540 is further configured to:

The processor 520 is also configured to:

Optionally, the transmitter 510 is further configured to:

The first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource, where the first resource is a resource used by the device to send the first message, and the second resource is received by the device. a resource used by the second message, the second message is used to indicate that the network device correctly receives the first The third resource is a non-scheduled resource used by the device to send uplink data.

It should be understood that, in the present application, the processor 520 may be a central processing unit ("CPU"), and the processor 520 may also be other general-purpose processors, digital signal processors (DSPs), dedicated Integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 530 can include read only memory and random access memory and provides instructions and data to the processor 520. A portion of the memory 530 may also include a non-volatile random access memory. For example, the memory 530 can also store information of the device type.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 520 or an instruction in a form of software. The steps of the method disclosed in connection with the present application may be directly embodied by hardware processor execution or by a combination of hardware and software modules in a 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 530, and the processor 520 reads the information in the memory 530 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The apparatus 500 for transmitting uplink data according to the present application may correspond to the first terminal device in the method of the present application, and each unit in the apparatus 500 of the wireless communication, that is, the module and the other operations and/or functions described above are respectively implemented to implement the method 200. The corresponding process performed by the first terminal device is not described herein for brevity.

FIG. 7 is a schematic structural diagram of an apparatus 600 for transmitting uplink data according to the present application. The apparatus 600 includes:

Transmitter 610;

The processor 620;

Memory 630;

Receiver 640;

The memory 630 is configured to store an instruction, and the processor 620 is configured to execute an instruction stored by the memory 630 to control the receiver 640 to receive a signal or control the transmitter 610 to send a signal.

The receiver 640 is configured to receive the first message, where the first message is sent by the first terminal device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource;

The receiver 640 is also used to:

After determining, by the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, the uplink data sent by the first terminal device is received by the unscheduled resource.

Optionally, the first message is carried on the first resource;

The first resource corresponds to the first terminal device, or

The first message carries the device identifier of the first terminal device.

Optionally, the processor 620 is configured to determine that the first message sent by the first terminal device is correctly received;

The transmitter 610 is further configured to: after determining that the first message sent by the first terminal device is correctly received, send a second message to the first terminal device, where the second message is used to indicate that the device correctly receives the first message A message.

Optionally, the transmitter 610 is further configured to:

The second resource is configured by the device, or

Optionally, the receiver 640 is further configured to:

i is the default value, or

i is configured for this device.

Optionally, the transmitter 610 is further configured to:

The receiver 640 is also used to:

It should be understood that, in this application, the processor 620 may be a central processing unit ("CPU"), and the processor 620 may also be other general-purpose processors, digital signal processors (DSPs), dedicated Integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 630 can include read only memory and random access memory and provides instructions and data to the processor 620. A portion of the memory 630 may also include a non-volatile random access memory. For example, the memory 630 can also store information of the device type.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 620 or an instruction in a form of software. The steps of the method disclosed in connection with the present application may be directly embodied by hardware processor execution or by a combination of hardware and software modules in a 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 630, and the processor 620 reads the information in the memory 630 and combines the hardware thereof. Into the steps of the above method. To avoid repetition, it will not be described in detail here.

The apparatus 600 for transmitting uplink data according to the present application may correspond to the network device in the method of the present application, and the units and modules in the apparatus 600 for transmitting the uplink data and the other operations and/or functions described above are respectively implemented in the method 200. The corresponding processes performed by the network device are not described here for brevity.

It should be understood that, in various embodiments of the present application, the size of the serial numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application. The process 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 present application.

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 unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place. Or it can be distributed to multiple network elements. 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 present application 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 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 present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk, or an optical disk. A medium that can store program code.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the application should be determined by the scope of protection described in the claims.

Claims

A method for transmitting uplink data, the method comprising:

The first terminal device sends a first message to the network device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource;

After transmitting the first message, the first terminal device sends uplink data to the network device by using a scheduling-free resource.
The method according to claim 1, wherein the first message is carried on a first resource;

The first resource corresponds to the first terminal device, or

The first message carries a device identifier of the first terminal device.
The method according to claim 1 or 2, wherein the method further comprises:

Receiving, by the first terminal device, a second message sent by the network device, where the second message is used to indicate that the network device correctly receives the first message;

The first terminal device sends the uplink data to the network device by using the unscheduled resource, including:

The first terminal device sends uplink data to the network device by using a scheduling-free resource according to the second message.
The method according to claim 3, wherein the receiving, by the first terminal device, the second message sent by the network device comprises:

Receiving, by the first terminal device, the second message sent by the network device on the second resource, where

The second resource is configured by the network device, or

The second resource is determined according to the first resource, where the first resource is a resource used by the first terminal device to send the first message.
The method according to any one of claims 1 to 4, wherein the first terminal device sends uplink data to the network device by using a scheduling resource, including:

The first terminal device sends uplink data to the network device on a third resource, where the third resource belongs to an unscheduled resource, where

The third resource is randomly selected by the first terminal device, or

The third resource is determined according to the first resource and/or the second resource, where the first resource is a resource used by the first terminal device to send the first message, and the second resource is the first resource One end The end device receives the resource used by the second message, and the second message is used to indicate that the network device correctly receives the first message.
The method according to claim 5, wherein the first resource is located in the first subframe, the third resource is located in the second subframe, and the first resource is sent by the first terminal device a resource used by a message, the second subframe is an i-th subframe after the first subframe, i≥1, wherein

i is the default value, or

i is configured by the network device.
The method according to any one of claims 1 to 6, wherein the first terminal device sends uplink data to the network device by using a scheduling resource, including:

Transmitting, by the first terminal device, uplink data to the network device by using a first transmission parameter by using a scheduling resource, where

The first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource, where the first resource is a resource used by the first terminal device to send the first message, The second resource is a resource used by the first terminal device to receive the second message, where the second message is used to indicate that the network device correctly receives the first message, and the third resource is the first terminal device A schedule-free resource used to send upstream data.
The method according to claim 7, wherein the first transmission parameter comprises at least one of: transmit power, code domain resource, modulation and coding scheme MCS, redundancy version RV, frequency domain frequency hopping, carrier type And resource allocation.
A method for transmitting uplink data, the method comprising:

Receiving, by the network device, the first message, where the first message is sent by the first terminal device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource;

After determining, by the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, the network device receives the uplink data sent by the first terminal device by using the unscheduled resource.
The method according to claim 9, wherein the first message is carried on a first resource;

The first resource corresponds to the first terminal device, or

The first message carries a device identifier of the first terminal device.
The method according to claim 9 or 10, wherein the method further comprises:

After determining that the first message sent by the first terminal device is correctly received, the network device sends a second message to the first terminal device, where the second message is used to indicate that the network device correctly receives The first message.
The method according to claim 11, wherein the sending, by the network device, the second message to the first terminal device comprises:

Sending, by the network device, the second message to the first terminal device on a second resource, where

The second resource is configured by the network device, or

The second resource is determined according to the first resource, where the first resource is a resource used by the first terminal device to send the first message.
The method according to any one of claims 9 to 12, wherein the receiving, by the network device, the uplink data sent by the first terminal device by using the unscheduled resource includes:

Receiving, by the network device, uplink data sent by the first terminal device on a third resource, where the third resource belongs to an unscheduled resource, where

The third resource is determined according to the first resource and/or the second resource, where the first resource is a resource used for receiving the first message, and the second resource is a resource used for sending a second message, where The second message is used to indicate that the network device correctly receives the first message.
The method according to claim 13, wherein the first resource is located in a first subframe, the third resource is located in a second subframe, and the first resource is a resource used to receive the first message, where The second subframe is the i-th subframe after the first subframe, i≥1, wherein

i is the default value, or

i is configured by the network device.
The method according to any one of claims 9 to 14, wherein the network device receives the uplink data sent by the first terminal device by using the unscheduled resource, including:

The network device receives the uplink data sent by the first terminal device by using the first transmission parameter by using the unscheduled resource.
An apparatus for transmitting uplink data, characterized in that the apparatus comprises:

a sending unit, configured to send a first message to the network device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using a non-scheduled resource;

The sending unit is further configured to:

After sending the first message, sending the uplink number to the network device by using the unscheduled resource according to.
The apparatus according to claim 16, wherein the first message is carried on a first resource;

The first resource corresponds to the device, or

The first message carries a device identification of the device.
The device according to claim 16 or 17, wherein the device further comprises:

a receiving unit, configured to receive a second message sent by the network device, where the second message is used to indicate that the network device correctly receives the first message;

The device also includes:

The processing unit is configured to determine, according to the second message, that the uplink data is sent to the network device by using the unscheduled resource.
The device according to claim 18, wherein the receiving unit is further configured to:

Receiving, on the second resource, a second message sent by the network device, where

The second resource is configured by the network device, or

The second resource is determined according to the first resource, where the first resource is a resource used by the device to send the first message.
The device according to any one of claims 16 to 19, wherein the transmitting unit is further configured to:

Transmitting uplink data to the network device on a third resource, where the third resource belongs to an unscheduled resource, where

The third resource is randomly selected by the device, or

The third resource is determined according to the first resource and/or the second resource, where the first resource is a resource used by the device to send the first message, and the second resource is a second resource received by the device The resource used by the message, the second message is used to indicate that the network device correctly receives the first message.
The apparatus according to claim 20, wherein the first resource is located in a first subframe, the third resource is located in a second subframe, and the first resource is used by the apparatus to send the first message. a resource, the second subframe is an i-th subframe subsequent to the first subframe, where i≥1, where

i is the default value, or

i is configured by the network device.
Apparatus according to any one of claims 16 to 21, wherein said hair The delivery unit is also used to:

Transmitting, by using the first transmit parameter, uplink data to the network device by using a scheduling resource, where

The first transmission parameter is determined according to at least one of the following: a first resource, a second resource, and a third resource, where the first resource is a resource used by the device to send the first message, and the second resource is The device is configured to receive the resource used by the second message, where the second message is used to indicate that the network device correctly receives the first message, and the third resource is an unscheduled resource used by the device to send uplink data.
The apparatus according to claim 22, wherein the first transmission parameter comprises at least one of: transmit power, code domain resource, modulation and coding scheme MCS, redundancy version RV, frequency domain frequency hopping, carrier type And resource allocation.
An apparatus for transmitting uplink data, characterized in that the apparatus comprises:

The receiving unit is configured to receive the first message, where the first message is sent by the first terminal device, where the first message is used to indicate that the first terminal device performs uplink data transmission by using the unscheduled resource;

The receiving unit is further configured to:

And after determining, by the first message, that the first terminal device needs to perform uplink data transmission by using the unscheduled resource, receiving the uplink data sent by the first terminal device by using the unscheduled resource.
The apparatus according to claim 24, wherein the first message is carried on a first resource;

The first resource corresponds to the first terminal device, or

The first message carries a device identifier of the first terminal device.
The device according to claim 24 or 25, wherein the device further comprises:

a processing unit, configured to determine that the first message sent by the first terminal device is correctly received;

The sending unit is further configured to: after determining that the first message sent by the first terminal device is correctly received, send a second message to the first terminal device, where the second message is used to indicate the The device correctly receives the first message.
The device according to claim 26, wherein the sending unit is further configured to:

Sending the second message to the first terminal device on a second resource, where

The second resource is configured by the device, or

The second resource is determined according to the first resource, where the first resource is a resource used to receive the first message.
The device according to any one of claims 24 to 27, wherein the receiving unit is further configured to:

Receiving uplink data sent by the first terminal device on a third resource, where the third resource belongs to an unscheduled resource, where

The third resource is determined according to the first resource and/or the second resource, where the first resource is a resource used for receiving the first message, and the second resource is a resource used for sending a second message, where The second message is used to indicate that the device correctly receives the first message.
The device according to claim 28, wherein the first resource is located in the first subframe, the third resource is located in the second subframe, and the first resource is used by the first terminal device to send the first message. Resource, the second subframe is the i-th subframe after the first subframe, i≥1, where

i is the default value, or

i is configured by the device.
The device according to any one of claims 24 to 29, wherein the receiving unit is further configured to:

Receiving, by the unscheduled resource, the uplink data sent by the first terminal device by using the first transmission parameter.