CN106982456B

CN106982456B - Communication transmission method, terminal equipment and base station

Info

Publication number: CN106982456B
Application number: CN201610029538.4A
Authority: CN
Inventors: 张锦芳; 张伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-01-15
Filing date: 2016-01-15
Publication date: 2021-12-31
Anticipated expiration: 2036-01-15
Also published as: CN106982456A; WO2017121213A1

Abstract

The patent application provides a communication transmission method, terminal equipment and a base station. The method comprises the following steps: the base station and the terminal equipment adopt a first transmission time interval to transmit the control information of the terminal equipment; and the base station and the terminal equipment adopt a second transmission time interval to transmit the data of the terminal equipment, wherein the second transmission time interval is greater than the first transmission time interval. The terminal equipment and the base station adopt the first transmission time interval to transmit the control information, and the time for transmitting the control information is shortened. After the terminal equipment or the base station receives the control information, the base station or the terminal equipment can initiate processing in time without waiting for a longer second transmission time interval, so that the waiting time is saved. Therefore, the data of the terminal equipment can be processed and transmitted in time, and the transmission time delay of the uplink and downlink data is reduced.

Description

Communication transmission method, terminal equipment and base station

Technical Field

The embodiment of the present patent application relates to the field of communications, and in particular, to a communication transmission method, a communication transmission system, a terminal device, and a base station.

Background

The existing communication network mainly faces the data service requirements brought by voice and smart phones and tablet computers, and because the service is relatively single, the network uses a single fixed design, for example, a WCDMA network uses a fixed Transmission Time Interval (TTI) of 2ms, and an LTE network uses a fixed TTI of 1 ms. With the development of communication technology, more new services will be generated. Such as multi-party high definition video service, very low latency machine to machine (M2M) service, or vehicle to vehicle (V2V) communication service. These services have very different requirements on delay and throughput. Among them, the transmission of a traffic requiring a short delay and a large data volume has a high demand on a communication network. Presenting significant challenges to existing communication networks. There is currently no suitable solution to support such short-latency, large data volume traffic.

Disclosure of Invention

The application provides a communication transmission method, a communication transmission system, terminal equipment and a base station, so as to support the short-time delay and large-data-volume service.

In a first aspect, the present patent application provides a communication transmission method, including: the base station and the terminal equipment adopt a first transmission time interval to transmit the control information of the terminal equipment; and the base station and the terminal equipment adopt a second transmission time interval to transmit the data of the terminal equipment, wherein the second transmission time interval is greater than the first transmission time interval.

In the patent application, the terminal device and the base station transmit the control information by adopting the first transmission time interval, and the time for transmitting the control information is shortened. After the terminal equipment or the base station receives the control information, the base station or the terminal equipment can initiate processing in time without waiting for a longer second transmission time interval, so that the waiting time is saved. Therefore, the data of the terminal equipment can be processed and transmitted in time, and the transmission time delay of the uplink and downlink data is reduced. In addition, the data of the terminal equipment is transmitted by utilizing the second transmission time interval in the application, so that the transmission of large data volume can be effectively met, and the large data volume service is supported. This supports well short-delay, large data volume traffic of the terminal device.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the method further includes: and the terminal equipment receives configuration information of a transmission mode sent by the base station, wherein the transmission mode is used for indicating the terminal equipment to transmit the control information of the terminal equipment by adopting a first transmission time interval and transmit the data of the terminal equipment by adopting a second transmission time interval.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the method further includes: the terminal equipment provides information of service requirements for the base station; the transmission mode is determined according to the traffic demand.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the transmitting, by the base station and the terminal device, the control information of the terminal device by using the first transmission time interval includes: the terminal equipment sends scheduling request information to the base station by adopting the first transmission time interval; the terminal equipment receives scheduling grant information sent by the base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data; the base station and the terminal device transmit the data of the terminal device by adopting the second transmission time interval, including: and the terminal equipment adopts the second transmission time interval to send the data to the base station through the first time-frequency resource.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the transmitting, by the base station and the terminal device, the control information of the terminal device by using the first transmission time interval includes: the terminal equipment receives scheduling grant information sent by a base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data; the base station and the terminal device transmit the data of the terminal device by adopting the second transmission time interval, including: and the terminal equipment receives the data sent by the base station through the first time-frequency resource by adopting the second transmission time interval.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes: and the base station sends configuration information of a transmission mode to the terminal equipment, wherein the transmission mode is used for indicating the terminal equipment to transmit the control information of the terminal equipment by adopting the first transmission time interval and transmit the data of the terminal equipment by adopting the second transmission time interval.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the method further includes: the base station acquires the information of the service requirement of the terminal equipment; the transmission mode is determined according to the traffic demand.

With reference to the first aspect, or the fifth possible implementation manner of the first aspect, or the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the transmitting, by the base station and the terminal device, the control information of the terminal device by using the first transmission time interval includes: the base station receives scheduling request information sent by the terminal equipment by adopting the first transmission time interval; the base station sends scheduling grant information to the terminal equipment by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data; the base station and the terminal device transmit the data of the terminal device by adopting the second transmission time interval, including: and the base station receives the data sent by the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

With reference to the first aspect, or the fifth possible implementation manner of the first aspect, or the sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the transmitting, by the base station and the terminal device, the control information of the terminal device by using the first transmission time interval includes: the base station sends scheduling grant information to the terminal equipment by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data; the base station and the terminal device transmit the data of the terminal device by adopting the second transmission time interval, including: and the base station adopts the second transmission time interval to send the data to the terminal equipment through the first time-frequency resource.

With reference to the seventh possible implementation manner of the first aspect or the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, before the base station sends the scheduling grant information to the terminal device by using the first transmission time interval, the method further includes: and the base station carries out scheduling processing, the starting time of the scheduling processing is aligned with the starting time of the second transmission time interval, and the scheduling processing is used for determining the first time-frequency resource.

With reference to the seventh possible implementation manner of the first aspect or the eighth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, before the base station sends the scheduling grant information to the terminal device by using the first transmission time interval, the method further includes: and the base station carries out scheduling processing, and the scheduling processing is used for coordinating the time-frequency resources to distribute to scheduling requests correspondingly received in the same second transmission time interval.

With reference to the first aspect or any one of the foregoing possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, the transmitting, by the base station and the terminal device, the control information of the terminal device by using the first transmission time interval includes: the base station and the terminal equipment adopt a first transmission time interval to transmit the control information of the terminal equipment in a first sub-band, and the first sub-band has the first transmission time interval; the base station and the terminal device adopt a second transmission time interval to transmit the data of the terminal device, and the method comprises the following steps: and the base station and the terminal equipment transmit the control information of the terminal equipment by adopting a second transmission time interval in a second sub-band, wherein the second sub-band has the second transmission time interval.

With reference to the first aspect or any one of the above possible implementations of the first aspect, in an eleventh possible implementation of the first aspect, the second transmission time interval is a positive integer multiple of the first transmission time interval.

In a second aspect, the present patent application provides a terminal device, comprising: a transceiver; a memory to store instructions; a processor, coupled to the memory and the transceiver, respectively, for executing the instructions to control the transceiver to perform the following steps when executing the instructions: transmitting control information of the terminal equipment by adopting a first transmission time interval; and transmitting the data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the processor, when executing the instructions, controls the transceiver to further perform the following steps: and receiving configuration information of a transmission mode sent by the base station, wherein the transmission mode is used for indicating the terminal equipment to transmit the control information of the terminal equipment by adopting a first transmission time interval and to transmit the data of the terminal equipment by adopting a second transmission time interval. With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the processor, when executing the instructions, controls the transceiver to further perform the following steps: providing information of service requirements to the base station; the transmission mode is determined according to the traffic demand.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in a third possible implementation of the second aspect, the transmitting the control information of the terminal device by using a first transmission time interval includes: sending scheduling request information to the base station by adopting the first transmission time interval; receiving scheduling grant information sent by the base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data; the transmitting the data of the terminal device by using the second transmission time interval includes: and sending the data to the base station through the first time-frequency resource by adopting the second transmission time interval.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in a fourth possible implementation of the second aspect, the transmitting the control information of the terminal device by using a first transmission time interval includes: receiving scheduling grant information sent by a base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data; the transmitting the data of the terminal device by using the second transmission time interval includes: and receiving the data sent by the base station through the first time-frequency resource by adopting the second transmission time interval.

With reference to the second aspect or any one of the foregoing possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, the transmitting the control information of the terminal device by using the first transmission time interval includes: transmitting control information of the terminal equipment by adopting a first transmission time interval in a first sub-band, wherein the first sub-band has the first transmission time interval; the data of the terminal device adopting the second transmission time interval includes: and the base station and the terminal equipment transmit the control information of the terminal equipment by adopting a second transmission time interval in a second sub-band, wherein the second sub-band has the second transmission time interval.

With reference to the second aspect or any one of the above possible implementations of the second aspect, in a sixth possible implementation of the second aspect, the second transmission time interval is a positive integer multiple of the first transmission time interval.

In a third aspect, the present patent application provides a base station, comprising: a transceiver; a memory to store instructions; a processor, coupled to the memory and the transceiver, respectively, for executing the instructions to control the transceiver to perform the following steps when executing the instructions: transmitting control information of the terminal equipment by adopting a first transmission time interval; and transmitting the data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the processor, when executing the instructions, controls the transceiver to further perform the following steps: and sending configuration information of a transmission mode to the terminal equipment, wherein the transmission mode is used for indicating the terminal equipment to adopt the first transmission time interval to transmit the control information of the terminal equipment and adopt the second transmission time interval to transmit the data of the terminal equipment.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the processor, when executing the instructions, controls the transceiver to further perform the following steps: acquiring information of service requirements of the terminal equipment; the transmission mode is determined according to the traffic demand.

With reference to the third aspect or any one of the above possible implementation manners of the third aspect, in a third possible implementation manner of the third aspect, the transmitting the control information of the base station by using the first transmission time interval includes: receiving scheduling request information sent by the terminal equipment by adopting the first transmission time interval; and sending scheduling grant information to the terminal device by using the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data; the transmitting the data of the base station with the second transmission time interval includes: and receiving the data sent by the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

With reference to the third aspect or any one of the above possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the transmitting the control information of the base station by using a first transmission time interval includes: sending scheduling grant information to the terminal device by adopting the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data; the transmitting the data of the base station with the second transmission time interval includes: sending the data to the terminal equipment through the first time-frequency resource by adopting the second transmission time interval

With reference to the third aspect or the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the processor, when executing the instructions, further performs the following steps: and performing scheduling processing, wherein the starting time of the scheduling processing is aligned with the starting time of the second transmission time interval, and the scheduling processing is used for determining the first time-frequency resource.

With reference to the third aspect or the fourth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the processor, when executing the instructions, further performs the following steps: and scheduling, wherein the scheduling is used for coordinating the time-frequency resources to allocate the time-frequency resources to scheduling requests received in the same second transmission time interval.

With reference to the third aspect or any one of the foregoing possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the transmitting the control information of the terminal device by using the first transmission time interval includes: transmitting control information of the terminal equipment by adopting a first transmission time interval in a first sub-band, wherein the first sub-band has the first transmission time interval; the data of the terminal device adopting the second transmission time interval includes: and the base station and the terminal equipment transmit the control information of the terminal equipment by adopting a second transmission time interval in a second sub-band, wherein the second sub-band has the second transmission time interval.

With reference to the seventh possible implementation manner of the third aspect, in an eighth possible implementation manner of the third aspect, the second transmission time interval is a positive integer multiple of the first transmission time interval. So that the scheduling process is simpler.

In another aspect, an embodiment of the present patent application provides a network system, which includes the terminal device of the second aspect and the base station of the second aspect.

In yet another aspect, embodiments of the present application provide a computer storage medium for storing computer software instructions for the base station or the terminal device, which includes a program for executing the method of the above corresponding aspect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present patent application, the drawings needed to be used in the embodiments of the present patent application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present patent application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a wireless communication system according to various embodiments of the present patent application.

Fig. 2 shows a scenario in which one frequency band is divided into 2 sub-bands.

Fig. 3 shows an interaction diagram of a communication transmission method according to an embodiment of the present patent application.

Fig. 4 shows an interaction diagram of a communication transmission method according to an embodiment of the present patent application.

Fig. 5 shows a scheduling diagram of a communication transmission method according to an embodiment of the present patent application.

Fig. 6 shows a scheduling diagram of a communication transmission method according to an embodiment of the present patent application.

Fig. 7 is a scheduling diagram illustrating a communication transmission method according to an embodiment of the present patent application.

Fig. 8 shows an interaction diagram of a communication transmission method according to an embodiment of the present patent application.

Fig. 9 shows a scheduling diagram of a communication transmission method according to another embodiment of the present patent application.

Fig. 10 is a scheduling diagram illustrating a communication transmission method according to another embodiment of the present patent application.

Fig. 11 is a schematic diagram of a terminal device according to another embodiment of the present patent application.

Fig. 12 is a schematic diagram of a base station according to another embodiment of the present patent application.

Detailed Description

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

Various embodiments are now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

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

Furthermore, various embodiments are described in connection with an access terminal device. An access terminal may also be called a system, subscriber unit, subscriber station, mobile, remote station, remote terminal device, mobile device, User terminal device, wireless communication device, User agent, User device, or UE (User Equipment). The access terminal device may be a cellular telephone, a cordless telephone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device having Wireless communication capabilities, a computing device, or other processing device connected to a Wireless modem. Furthermore, various embodiments are described herein in connection with a base station. The Base Station may be a Base Transceiver Station (BTS) in GSM (Global System for Mobile communications) or CDMA (Code Division Multiple Access), an NB (NodeB, Base Station) in WCDMA (Wideband Code Division Multiple Access), an eNB or eNodeB (evolved Node B) in LTE (Long Term Evolution), or a relay Station or Access point, or a Base Station device in a future 5G network.

The names of network entities in all embodiments of this patent may be extended to names having the same or similar functionality.

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

Referring now to fig. 1, a wireless communication system 100 is shown in accordance with various embodiments described herein. The wireless communication system 100 includes a base station 102, and the base station 102 can include multiple antenna groups. Each antenna group can include one or more antennas, e.g., one antenna group can include

antennas

104 and 106, another antenna group can include

antennas

108 and 110, and an additional group can include

antennas

112 and 114. 2 antennas are shown in fig. 1 for each antenna group, however, more or fewer antennas may be utilized for each group. Base station 102 can additionally include a transmitter chain and a receiver chain, each of which can be implemented as a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art.

Base station 102 may communicate with one or more access terminal devices, such as access terminal device 116 and access terminal device 122. However, it is to be appreciated that base station 102 can communicate with any number of access terminal devices similar to access

terminal devices

116 or 122. The

access terminal devices

116 and 122 can be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over the wireless communication system 100. As depicted, access terminal device 116 is in communication with

antennas

112 and 114, where

antennas

112 and 114 transmit information to access terminal device 116 over forward link 118 and receive information from access terminal device 116 over reverse link 120. In addition, access terminal device 122 is in communication with

antennas

104 and 106, where

antennas

104 and 106 transmit information to access terminal device 122 over forward link 124 and receive information from access terminal device 122 over reverse link 126. In an FDD (Frequency Division Duplex) system, forward link 118 may utilize a different Frequency band than that used by reverse link 120, and forward link 124 may utilize a different Frequency band than that used by reverse link 126, for example. Further, in a TDD (Time Division Duplex) system, forward link 118 and reverse link 120 can utilize a common frequency band and forward link 124 and reverse link 126 can utilize a common frequency band.

Each group of antennas and/or the area in which they are designed to communicate is referred to as a sector of base station 102. For example, antenna groups can be designed to communicate to access terminal devices in a sector of the areas covered by base station 102. During communication of base station 102 with

access terminal devices

116 and 122 over

forward links

118 and 124, respectively, the transmitting antennas of base station 102 can utilize beamforming to improve signal-to-noise ratio of

forward links

118 and 124. Moreover, mobile devices in neighboring cells can be subject to less interference when base station 102 utilizes beamforming to transmit to access

terminal devices

116 and 122 scattered randomly through an associated coverage, as compared to a base station transmitting through a single antenna to all its access terminal devices.

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

Conventional wireless networks use fixed Transmission Time Interval (TTI) lengths. For example, a network operating under the third generation partnership project (3GPP) Long Term Evolution (LTE) release 8(release 8) telecommunications standard uses a Transmission Time Interval (TTI) of 1 millisecond (ms). The length of the TTI can significantly affect the latency performance and throughput performance of the network. In particular, shorter TTIs achieve superior latency performance by providing more frequent transmission opportunities, while longer TTIs achieve superior throughput performance by reducing signaling overhead.

In order to meet the requirement that the future system needs to support the service with extremely short transmission delay, a shorter Transmission Time Interval (TTI) design is adopted at the air interface. For example, further shortening the TTI to 0.5ms, 0.25ms, or even shorter. However, the use of a shorter TTI for transmitting a service with a large data volume may bring additional overhead for transmitting control information and increase transmission cost due to the need for multiple scheduling transmissions and feedbacks.

The application provides a wireless communication system, which divides a system frequency band into a plurality of sub-bands, and each sub-band is respectively configured with TTIs with different time lengths. Fig. 2 shows a scenario in which one frequency band is divided into 2 sub-bands. The system frequency band comprises in particular a first sub-band 201 and a second sub-band 203. There may be a Guard Bandwidth (GB) between the first subband 201 and the second subband 203. Guard bandwidth > -0 Hz. The first sub-band 201 has a first transmission time interval TTI _ 1. The second sub-band 203 has a second transmission time interval TTI _ 2. The second transmission time interval TTI _2 is greater than the first transmission time interval TTI _ 1. That is, the TTI _1 duration is shorter and the TTI _2 duration is longer. TTI _2 may be an integer multiple of TTI _1, i.e., TTI _2 is N × TTI _ 1. Wherein N is a positive integer. In fig. 2, TTI _2 is described as 2 × TTI _ 1. The second TTI _2 is not limited in this application to being an integer multiple of the first TTI _ 1. When TTI _2 is an integer multiple of TTI _1, the scheduling process is simpler if information is transmitted and received in the first transmission time interval TTI _1 and the second transmission time interval TTI _ 2.

Each first TTI _1 transmission time interval in the first subband 201 corresponds to a transmission time of a first control channel and a first data channel. Each second transmission time interval TTI _2 in the second sub-band 203 corresponds to a transmission time for a second control channel and a second data channel. The first control channel and the second control channel may transmit control information of the terminal device. The first data channel and the second data channel may transmit data of the terminal device. In the first sub-band 201 and the second sub-band 203, some TTIs further include common control channels, such as broadcast channels, synchronization channels, random access channels, and the like, which are respectively used for transmitting cell system information, terminal device access, and the like. The present patent application does not relate to common control channels and is therefore not shown in the figure.

It should be noted that the wireless communication system itself in this patent application is not limited to the case of only dividing into 2 sub-bands and configuring 2 types of TTIs with different time lengths. The wireless communication system itself may be divided into a plurality of sub-bands, such as 3, 4 and more sub-bands. The TTI differs for each sub-band.

The TTI duration within a sub-band is fixed for the example above. It should be clear to those skilled in the art that one subband may also vary in duration for different TTIs.

For a terminal device, its short-latency, large data traffic may use a mixture of TTI _1 in the first sub-band 201 and TTI _2 in the second sub-band 203. The terminal device transmits control information of the terminal device on the first sub-band 201 and transmits data of the terminal device on the second sub-band 203.

The following describes the communication transmission method of the present patent application in further detail in both uplink and downlink situations.

Fig. 3 illustrates a communication transmission method according to an embodiment of the present patent application. The wireless communication system applied by the communication transmission method comprises an uplink first sub-band and a second sub-band, and a downlink first sub-band and a downlink second sub-band. Wherein the uplink and downlink first sub-band has a first transmission time interval TTI _ 1. The uplink and downlink second sub-bands have a second transmission time interval TTI _ 2. The second transmission time interval TTI _2 is greater than the first transmission time interval TTI _ 1. The base station and the terminal equipment support the transmission and the reception of information in the uplink and downlink first sub-band and the second sub-band.

The communication method comprises the following steps:

301. and the terminal equipment transmits scheduling request information to the base station by adopting TTI _1 in the uplink first sub-band through an air interface. And the base station receives the scheduling request information sent by the terminal equipment in the uplink first sub-band by adopting TTI _ 1. The scheduling request message includes a Scheduling Request (SR) or a Buffer Status Report (BSR). The scheduling request and the buffer status report both trigger the scheduling transmission of uplink data, which is not distinguished in the present patent application and is described by the scheduling request in a unified manner.

303. The base station starts 309 and schedules the received scheduling request information. The scheduling process may be performed according to the determined transmission mode. Regarding the scheduling process, further details will be described below. And distributing time-frequency resources required by transmission in the corresponding uplink second sub-band for the terminal equipment after the scheduling processing. And the base station transmits scheduling grant information to the terminal equipment by adopting TTI _1 in the first downlink sub-band. And the terminal equipment receives scheduling grant information sent by the base station in a downlink first sub-band by adopting TTI _ 1.

305. After receiving the scheduling grant information, the terminal device performs baseband processing on the data, for example: coding and modulation, etc. And sending data to the base station by adopting TTI _2 on the time-frequency resource of the uplink second sub-band allocated by the base station. And the base station receives the data sent by the terminal equipment on the second uplink sub-band by adopting TTI _ 2.

After receiving the data sent by the terminal device on the uplink second sub-band TTI _2, the base station performs baseband processing on the data, for example: demodulation, decoding, etc. And the base station sends transmission feedback information to the terminal equipment by adopting TTI _1 in the first downlink sub-band. And the terminal equipment receives the transmission feedback information sent by the base station in a downlink first sub-band by adopting TTI _ 1. If the decoding is unsuccessful, step 307A is performed, and in step 307A, feedback information is sent to determine whether to respond (NACK) message. And the base station sends the NACK message to the terminal equipment by adopting TTI _1 in the first downlink sub-band. If the decoding is successful, the process proceeds to step 307B, and in step 307B, the feedback message is an Acknowledgement (ACK) message. And the base station sends the ACK message to the terminal equipment by adopting TTI _1 in the first downlink sub-band. This indicates that the data transmission was successful, ending the transmission.

In the event step 307A occurs, the communication method further comprises the steps of:

308. after the terminal equipment receives the NACK message, if the uplink synchronous non-adaptive retransmission is adopted, the terminal equipment retransmits the terminal equipment data on the time frequency resource of the uplink second sub-band, which adopts TTI _2 and is the same as the time frequency resource allocated for the first time. And the base station receives the data sent by the terminal equipment on the time-frequency resource of the uplink second sub-band. If the uplink synchronous self-adaptive retransmission is adopted, 309 and scheduling processing are carried out again, and the base station allocates time-frequency resources required by retransmission for the terminal equipment in the corresponding uplink second sub-band after scheduling processing. Then, the scheduling grant and the feedback of the user data transmission can be continued, and specifically, steps 303, 305 and 307A or steps 303, 305 and 307B can be performed again.

As shown in fig. 4, the transmission mode in the communication method can also be determined by the following steps:

401. the terminal device provides the service requirements of the terminal device to the base station. The base station acquires the service requirement of the terminal equipment. Specifically, the base station may obtain the subscription information of the terminal device when the terminal device accesses the base station. Or when the terminal device requests a service, the context information of the terminal device indicating the service requirement is obtained according to the context information of the terminal device stored in a controller on the network side, such as a Mobility Management Entity (MME) in the LTE system. Or when the terminal equipment requests the service, the service is acquired according to the reported service type or slice type.

403. And the base station makes a transmission mode decision according to the service requirement.

According to the first TTI _1 and the second TTI _2 supported by the wireless communication system, and according to the service requirement, the transmission of the terminal device data and the terminal device control information may include three modes:

the first, terminal device data and terminal device control information are all transmitted by using the second transmission time interval TTI _2, which is suitable for delay insensitive services, for example: and E, downloading services such as mails and FTP which are insensitive to time delay.

And secondly, the data of the terminal equipment and the control information of the terminal equipment are transmitted by adopting a first transmission time interval TTI _1, which is suitable for services with time delay sensitivity and small data volume, such as industrial control and sensor alarm.

Thirdly, the data of the terminal device is transmitted by using the second transmission time interval TTI _2, and the control information of the terminal device is transmitted by using the first transmission time interval TTI _1, which is suitable for the service sensitive to time delay and large data volume, for example: telemedicine, etc. In this patent application, the third category is of great interest.

405. The base station transmits transmission mode configuration information to the terminal device. And the terminal equipment receives the transmission mode configuration information sent by the base station. The transmission mode configuration information may be obtained by adding a transmission mode field (trans.mode) to a Radio Resource Control (RRC) connection reconfiguration (connection reconfiguration) signaling, and may be indicated by 2 bits, which is specifically shown in the following table:

in the case of the third transmission mode, the transmission mode configuration information instructs the terminal device to transmit the control information of the terminal device with the first transmission time interval TTI _1 and to transmit the data of the terminal device with the second transmission time interval TTI _ 2.

Since the user data is transmitted by using TTI _2, that is, the time duration of the time frequency resource allocated by one-time scheduling is TTI _2, and the user control information is transmitted by using TTI _1, if the scheduling start time of the scheduler is aligned to the start position of TTI _1, scheduling conflict for the time frequency resource may occur. Specifically, as shown in fig. 5, if scheduling is started at the TTI _1 start time, scheduling is performed from the (m +1) th TTI _1 for a scheduling request that arrives at the (m) th TTI _1, and scheduling is performed at the (m +2) th TTI _1 for a scheduling request that arrives at the (m +1) th TTI _ 1. Assuming that the scheduling time is TTI _2, since the same time-frequency resource is scheduled, a problem that a service priority of a scheduling request received in (m +1) TTI _1 is high, but a required time-frequency resource cannot be obtained for transmission due to late scheduling may occur, so that Quality of service (QoS) of a user service cannot be satisfied.

The base station may also directly perform the transmission mode configuration without acquiring the service requirement.

A solution is proposed in the present patent application. In this solution, the start time of the scheduling process is always aligned with the second transmission time interval TTI _2 start time. And the scheduling requests in a plurality of corresponding TTI _1 time lengths in one TTI _2 time length are subjected to scheduling. As shown in FIG. 6, the scheduler waits after receiving the SR scheduling request in the mth TTI _1 until receiving the SR scheduling request in the m +1 th TTI _1, and then performs centralized scheduling, wherein the SG scheduling grants for the scheduling requests in the mth and the m +1 th TTI _1 are issued in the (m +4) th TTI _1 in a unified manner, that is, the UE which sends the SR in the mth and m +1 receives the SG in the m +4 th TTI _ 1. At this time, the scheduling request arriving in advance needs to wait for n (n < k) TTI _1 durations for scheduling, i.e., using the scheduling period of TTI _2 duration. Aiming at a scene containing k TTI _1 in one TTI _2, the SR scheduling request received in the first TTI _1 needs to wait for k-1 TTI _1 time lengths for scheduling, the SR scheduling request received in the second TTI _1 needs to wait for k-2 TTI _1 time lengths for scheduling, and so on until the SR scheduling request in the k-1 TTI _1 is received. Although the scheduling request arriving in advance needs extra waiting before scheduling, the time frequency resource is scheduled uniformly, so that the effective time frequency resource utilization rate can be obtained, and different service requirements of users can be met.

Another solution is proposed in the present patent application. In this solution, the scheduling start time may be aligned with the first transmission time interval TTI _1 start time. At this time, the time-frequency resources within the duration of the second TTI _2 are required to be coordinated and respectively allocated to the scheduling requests received in each TTI _ 1. As shown in fig. 7, the time-frequency resources within the TTI _2 duration may be divided into two parts, one part is allocated to the scheduling request arriving at the mth TTI _1, and the other part is allocated to the scheduling request arriving at the m +1 th TTI _ 1. At this time, the UE sending SR at m +1 receives SG at m +3, and the UE sending SR at m +2 receives SG at m +4, that is, for a scheduling request within a duration of TTI _1, the scheduling grant feedback time is within a fixed delay, for example, within a TTI _1 after the scheduling processing time. The scheme can schedule the scheduling request in time, and simultaneously the scheduling grant information is sent in different TTI _1, so that the time-frequency resource in TTI _1 can be freed for transmitting the control information and data of the delay sensitive service of other terminal equipment, and the service requirements of different users can be met.

In the present embodiment, Frequency Division multiplexing (FDD) is taken as an example for description, and the present invention is also applicable to Time Division multiplexing (TDD) systems.

The above description takes the transmission of uplink terminal device data as an example, and the following description will further describe the present patent application by taking the transmission of downlink terminal device data as an example.

Fig. 8 illustrates a communication transmission method according to another embodiment of the present patent application. The communication method comprises the following steps:

801. when the downlink terminal equipment data reaches the base station, the base station scheduler starts scheduling according to the determined transmission mode, and allocates time-frequency resources required by the downlink terminal equipment data transmission in the corresponding downlink second sub-band for the terminal equipment. And the base station transmits scheduling grant information to the terminal equipment by adopting a first transmission time interval TTI _1 in a first downlink sub-band. And the terminal equipment receives the scheduling grant information sent by the base station in a first downlink sub-band by adopting a first transmission time interval TTI _ 1. And the base station transmits data to the terminal equipment by adopting a second transmission time interval TTI _2 in a downlink second sub-band.

And after receiving the scheduling grant information, the terminal equipment receives the data sent by the base station in a downlink second sub-band by adopting a second transmission time interval TTI _2 according to the scheduling grant information. The terminal device performs baseband processing, such as demodulation, decoding, etc., on the data. And the terminal equipment sends transmission feedback information to the base station by adopting a first transmission time interval TTI _1 in the uplink first sub-band. And the base station receives the transmission feedback information sent by the terminal equipment in the uplink first sub-band by adopting a first transmission time interval TTI _ 1.

If the decoding is unsuccessful, step 802A is performed, and in step 802A, feedback information is a Negative Acknowledgement (NACK) message. And the terminal equipment transmits NACK information to the base station by adopting a first transmission time interval TTI _1 in the first uplink sub-band. This indicates that this data transmission failed and will trigger data retransmission. If the decoding is successful, step 802B is performed, and in step 802B, the feedback message is an Acknowledgement (ACK) message. And the terminal equipment transmits the ACK message to the base station by adopting a first transmission time interval TTI _1 in the uplink first sub-band. This indicates that the data transmission was successful, ending the transmission.

In the event step 802A occurs, the communication method further comprises the steps of:

803. and after receiving the NACK message, the base station retransmits the data. If the downlink asynchronous adaptive retransmission is adopted, the base station reenters step 801. The base station selects to schedule the terminal again, allocates time-frequency resources required by downlink terminal data retransmission for the terminal in the corresponding downlink second sub-band, and sends scheduling grant information to the terminal in the downlink first sub-band by adopting a first transmission time interval TTI _1, and simultaneously sends retransmission data to the terminal in the downlink second sub-band by adopting a second transmission time interval TTI _2, and then waits for receiving downlink terminal data retransmission feedback. And after receiving the scheduling grant information, the terminal equipment receives the data sent by the base station in a second transmission time interval TTI _2 in a downlink second sub-band according to the scheduling grant information. The terminal device performs baseband processing, such as demodulation, decoding, etc., on the data. And the terminal equipment sends transmission feedback information to the base station by adopting a first transmission time interval TTI _1 in the uplink first sub-band. And the base station receives the transmission feedback information sent by the terminal equipment in the uplink first sub-band by adopting a first transmission time interval TTI _ 1. If the decoding is unsuccessful, the step 802A is performed, and if the decoding is successful, the step 802B is performed.

The above description is given by taking a retransmission as an example, but the present application is not limited to a retransmission scenario, and may be a scenario in which retransmission is not performed, that is, a transmission is successful. Or the retransmission times of the patent application are not more than the maximum retransmission times.

In downlink data transmission, the transmission mode may also be obtained by the embodiment shown in fig. 4. The process of scheduling by the base station may also be processed in the manner described above with respect to fig. 5 and 6. In particular, the start time of the scheduling process is always aligned with the second transmission time interval TTI _2 start time. For downlink data received in a plurality of TTI _1 durations corresponding to one TTI _2 duration, as shown in fig. 9, the scheduler waits after receiving the downlink data in the mth TTI _1 until receiving the downlink data in the (m +1) th TTI _1, and then performs centralized scheduling. The SG scheduling grants for downlink data transmission in the mth and (m +1) th TTIs _1 are issued in the (m +4) th TTI _1 in a unified manner, that is, the SG is received at m +4 by the UE having downlink data transmission in the mth and m + 1. At this time, the downlink data arriving in advance needs to wait for n (n < k) TTI _1 durations for scheduling, i.e., using the scheduling period of TTI _2 duration. Aiming at a scene containing k TTI _1 in one TTI _2, downlink data received in the first TTI _1 needs to wait for k-1 TTI _1 time lengths for scheduling, downlink data received in the second TTI _1 needs to wait for k-2 TTI _1 time lengths for scheduling, and so on until downlink data in the k-1 TTI _1 is received. Although the downlink data arriving in advance needs extra waiting before scheduling, the time frequency resources are uniformly scheduled, so that the effective time frequency resource utilization rate can be obtained, and different service requirements of users can be met.

Another solution is proposed in the present patent application. In this solution, the scheduling start time may be aligned with the first transmission time interval TTI _1 start time. At this time, the time-frequency resources within the duration of the second TTI _2 are required to be coordinated and respectively allocated to the downlink data scheduling requests received at each TTI _ 1. As shown in fig. 10, the time-frequency resources within the TTI _2 duration may be divided into several parts, one part is allocated to the downlink data scheduling request arriving at the mth TTI _1, and the other part is allocated to the downlink data scheduling request arriving at the m +1 th TTI _ 1. At this time, the downlink data scheduling request arriving at m +1 sends scheduling grant information to the UE at m +3, and the downlink data scheduling request arriving at m +2 sends scheduling grant information to the UE at m +4, that is, for the downlink data scheduling request within a TTI _1 duration, the scheduling grant feedback time is within a fixed delay time, for example, within a TTI _1 after the scheduling processing time. In this case, it is also required to indicate that the time-frequency resource allocated to the UE is in the next TTI _2 in the scheduling grant information sent in m + 3. The scheme can schedule the downlink data scheduling request in time, and simultaneously the scheduling grant information is sent in different TTI _1, so that the time-frequency resource in TTI _1 can be freed for transmitting the control information and data of the delay sensitive service of other terminal equipment, and the service requirements of different users can be met.

The present application further provides embodiments of apparatus for performing the steps and methods of the above-described method embodiments. Fig. 11 is a schematic diagram of a terminal device according to another embodiment of the present patent application. As shown in fig. 11, the terminal device includes: a transceiver 1110, a memory 1120, to store instructions; a processor 1130, coupled to the memory 1120 and the transceiver 1110 respectively, for executing the instructions to control the transceiver 1110 to perform the following steps when executing the instructions: transmitting control information of the terminal equipment by adopting a first transmission time interval; and transmitting the data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval.

The processor 1130, when executing the instructions, controls the transceiver 1110 to further perform the steps of: and receiving configuration information of a transmission mode sent by the base station, wherein the transmission mode is used for indicating the terminal equipment to transmit the control information of the terminal equipment by adopting a first transmission time interval and to transmit the data of the terminal equipment by adopting a second transmission time interval.

The processor 1130, when executing the instructions, controls the transceiver 1110 to further perform the steps of: providing information of service requirements to the base station; the transmission mode is determined according to the traffic demand.

Specifically, when performing uplink data transmission, the controller, when executing the instruction, controls the transceiver 1110 to perform the following steps: sending scheduling request information to the base station by adopting the first transmission time interval; and receiving scheduling grant information sent by the base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data. And sending the data to the base station through the first time-frequency resource by adopting the second transmission time interval.

Specifically, when performing downlink data transmission, the controller controls the transceiver 1110 to perform the following steps when executing the instruction: receiving scheduling grant information sent by a base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data; and receiving the data sent by the base station through the first time-frequency resource by adopting the second transmission time interval.

Alternatively, the control signal may be transmitted on a first sub-band and the data may be transmitted on a second sub-band. The first sub-band has a first transmission time interval. The second sub-band has a second transmission time interval.

Optionally, the second transmission time interval is a positive integer multiple of the first transmission time interval.

Fig. 12 is a schematic diagram of a base station according to another embodiment of the present patent application. As shown in fig. 12, the base station includes: a transceiver 1210, a memory 1220 for storing instructions and a processor 1230. The processor 1230 is coupled to the memory 1220 and the transceiver 1210, respectively, and is configured to execute the instructions, so as to control the transceiver 1210 to perform the following steps when the instructions are executed: transmitting control information of the terminal equipment by adopting a first transmission time interval; and transmitting the data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval.

The processor 1230, when executing the instructions, controls the transceiver 1210 to further perform the steps of:

and sending configuration information of a transmission mode to the terminal equipment, wherein the transmission mode is used for indicating the terminal equipment to adopt the first transmission time interval to transmit the control information of the terminal equipment and adopt the second transmission time interval to transmit the data of the terminal equipment.

acquiring information of service requirements of the terminal equipment; the transmission mode is determined according to the traffic demand.

Specifically, when performing uplink data transmission, the controller, when executing the instruction, controls the transceiver 1110 to perform the following steps: receiving scheduling request information sent by the terminal equipment by adopting the first transmission time interval; and sending scheduling grant information to the terminal device by using the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data; and receiving the data sent by the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

Specifically, when performing downlink data transmission, the controller controls the transceiver 1110 to perform the following steps when executing the instruction: sending scheduling grant information to the terminal device by adopting the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data; and sending the data to the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

The processor 1230, when executing the instructions, further performs the steps of: and performing scheduling processing, wherein the starting time of the scheduling processing is aligned with the starting time of the second transmission time interval, and the scheduling processing is used for determining the first time-frequency resource.

The processor 1230, when executing the instructions, further performs the steps of: and scheduling, wherein the scheduling is used for coordinating the time-frequency resources to allocate the time-frequency resources to scheduling requests received in the same second transmission time interval.

The application provides a method for respectively transmitting user data and user control information by using a long TTI and a short TTI in a mixed manner. The method can be well applied to low-delay and large-data-volume services.

Although much of the disclosure of the present patent application is presented in the context of LTE, e.g., TTIs may be referred to as TTIs, etc., the techniques and/or mechanisms discussed herein may be applied to non-LTE networks, e.g., any frequency and/or time division multiplexed communication system.

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

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

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

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

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

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

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

Claims

1. A method of communication transmission, comprising:

the terminal equipment transmits the control information of the terminal equipment by adopting a first transmission time interval;

the terminal equipment transmits the data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval;

the terminal equipment provides information of service requirements for a base station;

the terminal device receives configuration information of a transmission mode sent by the base station, the transmission mode is used for indicating the terminal device to transmit the control information of the terminal device by adopting a first transmission time interval and transmit the data of the terminal device by adopting a second transmission time interval, and the transmission mode is determined according to the service requirement.

2. The method of claim 1, wherein:

the terminal equipment adopts a first transmission time interval to transmit the control information of the terminal equipment, and the method comprises the following steps:

the terminal equipment sends scheduling request information to the base station by adopting the first transmission time interval;

the terminal equipment receives scheduling grant information sent by the base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data;

the terminal device transmits the data of the terminal device by adopting a second transmission time interval, and the method comprises the following steps:

and the terminal equipment adopts the second transmission time interval to send the data to the base station through the first time-frequency resource.

3. The method of claim 1, wherein:

the terminal equipment receives scheduling grant information sent by a base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data;

and the terminal equipment receives the data sent by the base station through the first time-frequency resource by adopting the second transmission time interval.

4. A method of communication transmission, comprising:

the base station transmits the control information of the terminal equipment by adopting a first transmission time interval;

the base station transmits the data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval;

the base station acquires the information of the service requirement of the terminal equipment;

and the base station sends configuration information of a transmission mode to the terminal equipment, wherein the transmission mode is used for indicating the terminal equipment to transmit the control information of the terminal equipment by adopting the first transmission time interval and transmit the data of the terminal equipment by adopting the second transmission time interval, and the transmission mode is determined according to the service requirement.

5. The method of claim 4, wherein:

the base station transmits the control information of the terminal equipment by adopting a first transmission time interval, and the method comprises the following steps:

the base station receives scheduling request information sent by the terminal equipment by adopting the first transmission time interval;

the base station sends scheduling grant information to the terminal equipment by adopting the first transmission time interval, wherein the scheduling grant information comprises information of first time-frequency resources used for transmitting the data;

the base station transmits the data of the terminal equipment by adopting a second transmission time interval, and the method comprises the following steps:

and the base station receives the data sent by the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

6. The method of claim 4, wherein:

and the base station adopts the second transmission time interval to send the data to the terminal equipment through the first time-frequency resource.

7. The method of claim 5 or 6, wherein:

before the base station sends the scheduling grant information to the terminal device by using the first transmission time interval, the method further includes:

and the base station carries out scheduling processing, the starting time of the scheduling processing is aligned with the starting time of the second transmission time interval, and the scheduling processing is used for determining the first time-frequency resource.

8. The method of claim 5 or 6, wherein:

and the base station carries out scheduling processing, and the scheduling processing is used for coordinating the time-frequency resources to distribute to scheduling requests correspondingly received in the same second transmission time interval.

9. A terminal device, characterized by comprising:

a transceiver;

a memory to store instructions;

a processor, coupled to the memory and the transceiver, respectively, for executing the instructions to control the transceiver to perform the following steps when executing the instructions:

transmitting control information of the terminal equipment by adopting a first transmission time interval; transmitting data of the terminal equipment by adopting a second transmission time interval, wherein the second transmission time interval is greater than the first transmission time interval;

providing information of service requirements to a base station;

receiving configuration information of a transmission mode sent by the base station, where the transmission mode is used to instruct the terminal device to transmit the control information of the terminal device by using a first transmission time interval and to transmit the data of the terminal device by using a second transmission time interval, and the transmission mode is determined according to the service requirement.

10. The terminal device of claim 9, wherein:

the transmitting the control information of the terminal device by using the first transmission time interval includes:

sending scheduling request information to the base station by adopting the first transmission time interval; and

receiving scheduling grant information sent by the base station by using the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource used for transmitting the data;

the transmitting the data of the terminal device by using the second transmission time interval includes:

and sending the data to the base station through the first time-frequency resource by adopting the second transmission time interval.

11. The terminal device of claim 9, wherein:

receiving scheduling grant information sent by a base station by adopting the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data;

and receiving the data sent by the base station through the first time-frequency resource by adopting the second transmission time interval.

12. A base station, comprising:

a transceiver;

a memory to store instructions;

acquiring information of service requirements of the terminal equipment;

and sending configuration information of a transmission mode to the terminal equipment, wherein the transmission mode is used for indicating the terminal equipment to transmit the control information of the terminal equipment by adopting the first transmission time interval and transmit the data of the terminal equipment by adopting the second transmission time interval, and the transmission mode is determined according to the service requirement.

13. The base station of claim 12, wherein:

the transmitting the control information of the base station by using the first transmission time interval includes:

receiving scheduling request information sent by the terminal equipment by adopting the first transmission time interval; and

sending scheduling grant information to the terminal device by adopting the first transmission time interval, wherein the scheduling grant information comprises information of a first time-frequency resource for transmitting the data;

the transmitting the data of the base station with the second transmission time interval includes:

and receiving the data sent by the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

14. The base station of claim 12, wherein:

and sending the data to the terminal equipment through the first time-frequency resource by adopting the second transmission time interval.

15. The base station of claim 13 or 14, wherein:

the processor, when executing the instructions, further performs the steps of: and performing scheduling processing, wherein the starting time of the scheduling processing is aligned with the starting time of the second transmission time interval, and the scheduling processing is used for determining the first time-frequency resource.

16. The base station of claim 13 or 14, wherein:

the processor, when executing the instructions, further performs the steps of: and scheduling, wherein the scheduling is used for coordinating the time-frequency resources to allocate the time-frequency resources to scheduling requests received in the same second transmission time interval.