WO2018036269A1

WO2018036269A1 - Data frame transmission processing method and terminal

Info

Publication number: WO2018036269A1
Application number: PCT/CN2017/090781
Authority: WO
Inventors: 王三新
Original assignee: 深圳市金立通信设备有限公司
Priority date: 2016-08-26
Filing date: 2017-06-29
Publication date: 2018-03-01
Also published as: CN107786301A

Abstract

The embodiments of the invention disclose a data frame transmission processing method and terminal. The method comprises: receiving transmission latency and/or a bit error rate of a first downlink data frame reported by a terminal; and determining, according to the transmission latency and/or the bit error rate, a corresponding target downlink data frame to be transmitted to the terminal, wherein a DL field in the target downlink data frame is used to indicate corresponding target notification information, and the target notification information is used to notify the terminal of changing a quantity of data in the DL field of the first downlink data frame, so as to generate a new downlink data frame. Therefore, the embodiment is utilized to adopt a new downlink data frame to transmit downlink data, reducing a number of times of switching between uplink and downlink transmissions, and decreasing a requirement for hardware apparatuses of a terminal in data frame transmission.

Description

Data frame transmission processing method and terminal

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and a terminal for data frame transmission processing.

Background technique

With the continuous development and advancement of communication technology, the research on the fifth generation communication technology (5G) has begun in the world. 5G is a multi-technology communication, which meets a wide range of technologies through technological change and innovation. Data, the need to connect to the business. In the RAN71 meeting, 3GPP established a research project SI (study item) about 5G new air interface; among them, according to 5G division of vertical scene, 3GPP mainly from enhanced wireless broadband eMBB (enhanced mobile broadband), low latency The research on new air interface technology is carried out in three aspects: UL-reliable low-latency communications and mass machine type communications (mMTC).

At present, there are relatively clear research directions in eMBB, such as large-scale antenna technology, new coding, and new frame structure. However, research on URLLC has just begun. In the RAN 185 conferences, some companies have refined the URLLC scene and proposed some corresponding frame structure design ideas, but there is a gap between the implementation and performance in terms of expected goals. Therefore, how to design an appropriate frame structure to achieve the KLC (Key Performance Indicato) index of URLLC for delay and reliability (such as the one-way transmission delay of 0.5ms downstream and the transmission reliability of 99.999%) is the next step. One of the focuses.

For the new frame structure, Intel Corporation Intel proposed a self-contained implementation based on the RAN1 85 conference. Figure 1 shows a schematic diagram of a Self-contained frame structure. It can be seen in each subframe or time. In the transmission unit, the physical downlink control PDCCH channel is first sent, and then the PDSCH user data is sent according to the scheduling parameter of the PDCCH. After the protection period slot GP, the terminal feeds back the hybrid automatic retransmission request HARQ ACK/NACK for the PDSCH data. However, it is found in practice that the Self-Contained method can feedback the downlink data reception result in real time and reduce the one-way transmission delay, but it also causes excessive uplink and downlink handover, which has great challenges to the hardware implementation of the terminal. Not conducive to the commercial use of 5G terminals. Therefore, a reasonable need is needed The data frame structure is used for data transmission.

Summary of the invention

An embodiment of the present invention provides a method for data frame transmission processing, which is used to automatically and intelligently determine a new downlink data for next transmission according to a transmission delay and/or a transmission error rate of a first downlink data frame. Downlink data frames, thereby reducing the number of uplink and downlink handovers of data transmission, and reducing the requirements of data transmission for terminal hardware devices.

In a first aspect, an embodiment of the present invention provides a data frame transmission processing method, where the method includes:

Receiving, by the terminal, a transmission delay and/or a transmission error rate of the first downlink data frame, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used for transmitting downlink data;

And determining, according to the transmission delay and/or the transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used to transmit corresponding target notification information, where the target notification is sent. The information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.

In a second aspect, another embodiment of the present invention provides a data frame transmission processing method, where the method includes:

Calculating and determining a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station; where the first downlink data frame includes at least one Downlink data transmission DL area, the DL area is used for transmitting downlink data;

Transmitting the calculated transmission delay and/or transmission error rate of the first downlink data frame to the base station, so that the base station is configured according to the transmission delay and/or transmission error of the first downlink data frame. The code rate is used to adjust the first downlink data frame.

In a third aspect, an embodiment of the present invention provides a base station, where the base station includes:

a receiving unit, configured to receive a transmission delay and/or a transmission error rate of the first downlink data frame reported by the terminal, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used Transmit downlink data;

a sending unit, configured to determine, according to the transmission delay and/or a transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used for transmitting corresponding Target notification information, the target notification information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.

In a fourth aspect, an embodiment of the present invention provides a terminal, where the terminal includes:

a calculating unit, configured to calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station; where the first downlink is The data frame includes at least one downlink data transmission DL area, and the DL area is used to transmit downlink data;

a reporting unit, configured to report the transmission delay and/or the transmission error rate of the first downlink data frame calculated by the calculating unit to the base station, so that the base station is configured according to the first downlink data frame The transmission delay and/or the transmission error rate are used to adjust the first downlink data frame.

The embodiment of the present invention may receive the transmission delay and/or the transmission error rate of the first downlink data frame reported by the terminal, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used. And transmitting the downlink data, further determining, according to the transmission delay and/or the transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used for transmitting the corresponding target a notification information, the target notification information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame, and further transmit downlink data according to the new downlink data frame. This can reduce the number of uplink and downlink handovers of data transmission and reduce the requirements on the hardware of the terminal.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present invention. For the ordinary technicians, other drawings can be obtained based on these drawings without any creative work.

1 is a schematic diagram of a Self-contained frame structure according to an embodiment of the present invention;

2 is a schematic structural diagram of a network architecture according to a first embodiment of the present invention;

3 is a schematic flowchart of a data frame transmission processing method according to a second embodiment of the present invention;

4 is a schematic structural diagram of a data frame of delay feedback according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a data frame according to an embodiment of the present disclosure;

6 is a schematic structural diagram of a two-level cascading frame according to an embodiment of the present invention;

7 is a schematic structural diagram of a new downlink data frame according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a multi-level cascading frame according to an embodiment of the present invention;

9 is a schematic structural diagram of a data frame of non-delay feedback according to an embodiment of the present invention;

10 is a schematic structural diagram of a data frame of delay feedback according to an embodiment of the present invention;

11 is a schematic structural diagram of a data frame of cascaded feedback according to an embodiment of the present invention;

FIG. 12 is a schematic flowchart diagram of a data frame transmission processing method according to a third embodiment of the present invention; FIG.

FIG. 13 is a schematic flowchart diagram of a data frame transmission processing method according to a fourth embodiment of the present invention; FIG.

FIG. 14 is a schematic flowchart diagram of a data frame transmission processing method according to a fifth embodiment of the present invention; FIG.

15 is a schematic flowchart of a data frame transmission processing method according to a sixth embodiment of the present invention;

16 is a schematic structural diagram of a base station according to a seventh embodiment of the present invention;

17 is a schematic structural diagram of a base station according to an eighth embodiment of the present invention;

18 is a schematic structural diagram of a terminal according to a ninth embodiment of the present invention;

19 is a schematic structural diagram of a terminal according to a tenth embodiment of the present invention;

20 is a schematic structural diagram of a base station according to an eleventh embodiment of the present invention;

FIG. 21 is a schematic structural diagram of a terminal according to a twelfth embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The use of the terms "comprising", "comprising", "","," The presence or addition of a plurality of other features, integers, steps, operations, elements, components, and/or collections thereof.

It is also to be understood that the terminology of the present invention is to be construed as a The singular forms "", ",",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

It is further understood that the term "and/or" used in the description of the invention and the appended claims means any combination and all possible combinations of one or more of the associated listed items, .

As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "on" or "in response to determining" or "in response to detecting" depending on the context. . Similarly, the phrase "if determined" or "if detected [condition or event described]" may be interpreted in context to mean "once determined" or "in response to determining" or "once detected [condition or event described] ] or "in response to detecting [conditions or events described]".

In particular implementations, the terminals described in this embodiment of the invention include, but are not limited to, other portable devices such as mobile phones, laptop computers or tablet computers having touch sensitive surfaces (eg, touch screen displays and/or touch pads). It should also be understood that in some embodiments, the device is not a portable communication device, but a desktop computer having a touch sensitive surface (eg, a touch screen display and/or a touch pad).

In the following discussion, a terminal including a display and a touch sensitive surface is described. However, it should be understood that the terminal can include one or more other physical user interface devices such as a physical keyboard, mouse, and/or joystick.

The terminal supports a variety of applications, such as one or more of the following: drawing applications, presentation applications, word processing applications, website creation applications, disk burning applications, spreadsheet applications, gaming applications, phone applications Programs, video conferencing applications, email applications, instant messaging applications, workout support applications, photo management applications, digital camera applications, digital camera applications, web browsing applications, digital music player applications, and / or digital video player app.

Various applications that can be executed on the terminal can use at least one common physical user interface device such as a touch sensitive surface. One or more functions of the touch sensitive surface and corresponding information displayed on the terminal can be adjusted and/or changed within the application and/or within the respective application. In this way, the common physical architecture of the terminal (eg, a touch-sensitive surface) can support a variety of applications with a user interface that is intuitive and transparent to the user.

The embodiment of the invention discloses a data frame transmission processing method, a base station and a terminal, which helps to reduce the number of uplink and downlink handovers of data transmission and reduce the transmission requirements of the terminal to the hardware device. Following points Do not elaborate.

For a better understanding of a data frame transmission processing method, a base station, and a terminal provided by the embodiments of the present invention, a network architecture to which the embodiments of the present invention are applied is described below. Please refer to FIG. 2 , which is a schematic structural diagram of a network architecture according to a first embodiment of the present invention. As shown in FIG. 2, the network architecture may include a base station and a terminal, where the base station may include a base station, that is, a data receiving and data transmitting function, such as a mobile operator base station, and the terminal may include but is not limited to an in-vehicle device. User equipment such as mobile phones, mobile computers, tablets, personal digital assistants (PDAs), media players, smart TVs, smart watches, smart glasses, smart bracelets, etc. The terminal can communicate with the base station via the Internet.

Referring to FIG. 3, it is a schematic flowchart of a method for data frame transmission processing according to a second embodiment of the present invention. The data frame transmission processing party shown in the figure may include the following steps:

S101. The transmission delay and/or the transmission error rate of the first downlink data frame reported by the receiving terminal, where the first downlink data frame includes at least one downlink data transmission DL area, and the DL area is used to transmit downlink data. .

In the embodiment of the present invention, the terminal and the base station can perform data communication with each other through a network (such as a 5G network), and the specific implementation uses data frames for data transmission/communication, as shown in FIG. 2 . A schematic diagram of a structure of a delayed feedback data frame, wherein resources occupied by each data frame can be configured according to actual needs of the user/system, such as data frame length, occupied time slot, and number of data frame subframes (ie, subframes) Figure 4 exemplarily shows a schematic diagram of a structure including 3 subframes, namely Scheduling frame n, Scheduling frame n+1, Scheduling frame n+2; exemplarily as assumed in a 5G network The frame length of each data frame is 10 ms, including 20 time slots, a total of 10 subframes (as shown in FIG. 4, only a schematic diagram of 3 subframes is given), then each subframe has a length of 1 ms, and each Each of the Scheduling frames consists of 14 OFDM (Orthogonal Frequency-Division Multiplexing) symbols. Specifically, as shown in the frame structure diagram shown in FIG. 4, each subframe may include a downlink control DC (Downlink Control) area, a downlink data transmission DL (Download) area, an uplink data transmission UL (Upload) area, and an uplink and downlink protection GP ( Guard) area, used for uplink and downlink handover protection, feedback A/K (ACK/NACK) area, for feeding back A/K acknowledgment information about a subframe (such as a DL zone in a subframe) Whether the data transmitted by the domain is correct or incorrect), wherein the length of the DC area can be 1-3 symbols, and the DL area is used for transmitting downlink data, and the specific length can be 7-11 symbols, and the UL area is used for transmitting uplink. The data (that is, the A/K confirmation information in the A/K area mentioned above) may have a specific length of 7-11 symbols, the length of the GP area may be 1-10 symbols, and the length of the A/K area may be 1- 5 symbols, the length of each area can be adjusted/set according to the user/system actual data transmission requirements. Optionally, the number of resources of the uplink data transmission UL area and the downlink data transmission DL area in each data frame may be configured according to actual requirements of the user/system, such as DL:UL=2:3, DL: UL = 7:3 and so on.

It can be understood that when the base station/terminal actually uses the data frame for data transmission, the resource unit allocated by the service channel resource usually adopts a data resource block RB (Resource Block, RB), that is, each subframe includes 2 RBs, each of which includes RB is equivalent to 12 subcarriers in the frequency domain (12×15Khz=180Khz); equivalent to 1 time slot (0.5ms) in the time domain; in a 5G network, if each data frame has 10 subframes, then Each data frame corresponds to 12 x 10 x 2 = 240 subcarriers in the frequency domain and 10 time slots (10 ms) in the time domain. In order to ensure the security of data transmission, when data frames are used for actual data transmission, some DL/UL areas such as check code, error correction code, CRC cyclic redundancy check, etc. are added for error correction/ A code that detects if the data transmission is erroneous.

In a specific implementation, the terminal and the base station use the data frame to perform corresponding data transmission through the network. When the base station sends the first downlink data frame to the terminal, the terminal may detect and receive the first downlink data frame. And calculating, by the base station, the time that the base station starts to send the first downlink data frame to the terminal to completely receive the first downlink data frame, as the first downlink data frame recorded by the terminal Transmission delay. Optionally, the terminal may further analyze the received first downlink data frame, such as performing statistics on ACK/NACK in the A/K area in the downlink data frame, and calculating and determining the The transmission error rate of a downlink data frame. Optionally, the terminal may feed back/transmit the transmission delay and/or the transmission error rate of the first downlink data frame that is statistically reported to the UL area in the first downlink data frame to And the base station, where the base station can parse and acquire a transmission delay and/or a transmission error rate of the first downlink data frame.

The terminal may include a smart phone (such as an Android mobile phone, an IOS mobile phone, etc.), a personal computer, a tablet computer, a palmtop computer, a mobile internet device (MID, Mobile Internet Devices), or wear An Internet device such as a smart device is not limited in the embodiment of the present invention.

S102. Determine, according to the transmission delay and/or the transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used to transmit corresponding target notification information, where The target notification information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.

In the embodiment of the present invention, the base station may analyze the transmission delay and/or the transmission error rate obtained in S101 to determine a target downlink data frame or target notification information that needs to be sent to the terminal. Further, the base station sends the target downlink data frame to the terminal, where the number of DL regions of the target downlink data frame is the same as the number of DL regions of the first downlink data frame, where the target The DL area of the downlink data frame is used to transmit the corresponding target notification information, where the target notification information is used to notify the terminal to change the number of DL areas of the first downlink data frame, thereby forming a new downlink data frame, and the current When performing data transmission between the base station and the terminal, the corresponding downlink data may be transmitted by using the structure of the new data frame formed as described above.

Optionally, the target downlink data frame includes a second downlink data frame or a third downlink data frame, where the determining and transmitting the corresponding target to the terminal according to the transmission delay and/or the transmission error rate a downlink data frame, where the DL area of the target downlink data frame is used to transmit corresponding target notification information, where the target notification information is used to notify the terminal to change the number of DL areas of the first downlink data frame to form New downstream data frames, including:

Determining whether the transmission delay and/or the transmission error rate meet a preset data frame transmission condition;

If yes, the second downlink data frame is sent to the terminal, where the DL area of the second downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to cascade by default. The method increases the number of DL regions of the first downlink data frame to form a new downlink data frame.

The base station may determine whether the transmission delay and/or the transmission error rate acquired in S101 meet a preset data frame transmission condition that is preset by the user/system in the base station, for example, assuming that the base station The data transmission/communication between the base station and the terminal needs to satisfy the transmission delay and transmission in the URLLC scenario, and the data transmission/communication is performed in the scenario of the ultra-reliable low-latency communications (URLLC). The KPI of the bit error rate (or reliability) (such as the one-way transmission delay of less than 0.5ms in the downlink and the transmission reliability of more than 99.999%). When the terminal determines that the transmission delay and/or the transmission error rate meets the preset data frame When the transmission condition is met, the base station may send a corresponding second downlink data frame to the terminal, where the number of DL regions of the first downlink data frame is the same as the number of DL regions of the second downlink data frame. The DL area of the second downlink data frame is used to transmit the first notification information, that is, the base station uses the same frame structure as the first downlink data frame to send the first notification information to the terminal. The first notification information is used to notify the terminal to increase the number of DL regions of the first downlink data frame in a preset cascading manner to form a new downlink data frame. For example, it is assumed that the first downlink data frame sent by the base station to the terminal adopts a structural diagram of a data frame as shown in FIG. 5, wherein in the data frame: the length of the DC region Including 3 symbols, the length of the DL area is 7 symbols, the length of the GP area includes 1 symbol, and the length of the A/K area includes 3 symbols, then when the base station detects the transmission of the first downlink data frame When the delay and/or the transmission error rate meets the preset data frame transmission condition, the base station will also use the same data frame structure as in FIG. 5 to send the second information including the first notification information to the terminal. a downlink data frame, where the first notification information is used to notify the terminal to change a frame structure of the first/second downlink data frame, that is, to increase a preset preset by the user/system in the base station/terminal The number of DL areas (such as 1, 2, etc.), preferably the number of DL areas in the first/second downlink data frame, which are preset data frame transmission conditions (such as the KPI indicator of URLLC) for ensuring data frame transmission. Add one by one to form new downlink data In the specific implementation, the base station may directly allocate a DL area of 14 symbol lengths to the new data frame, that is, change one DL area in the first downlink data frame to two DL areas, specifically FIG. 6 is a schematic structural diagram of a two-stage cascading frame. When the base station performs data transmission with the terminal again, the base station may use the structure of the new downlink data frame to transmit corresponding downlink data.

And when the transmission delay and/or the transmission error rate does not meet the preset data frame transmission condition, sending a third downlink data frame to the terminal, where the DL area of the third downlink data frame is used for transmission a second notification information, where the second notification information is used to notify the terminal to reduce the first downlink data frame. The number of DL regions to form a new downlink data frame.

When the terminal determines that the transmission delay and/or the transmission error rate does not meet the preset data frame transmission condition, the base station may directly end the process or send a third downlink to the terminal. a data frame, the DL area of the third downlink data frame is used to transmit second notification information, where the second notification information is used to notify the terminal to reduce the number of DL areas of the first downlink data frame, when the next time When performing data transmission between the base station and the terminal, the corresponding downlink data may be transmitted by reducing the structure of the newly formed data frame after reducing the number of DL regions. In a specific implementation, when the base station determines that the transmission delay and/or the transmission error rate does not meet the preset data frame transmission condition (such as the KPI index of the URLLC), the base station may send the terminal to the terminal. a third downlink data frame, where the number of DL regions of the third downlink data frame is the same as the number of DL regions of the first downlink data frame, and the DL region of the third downlink data frame is used for transmission The second notification information, that is, the base station sends the second notification information to the terminal by using the same frame structure as the first downlink data frame, where the second notification information is used to notify the terminal to reduce The number of DL regions of the first downlink data frame to form a new downlink data frame. For example, assuming that the frame structure of the first downlink data frame is as shown in FIG. 6, when the base station detects that the transmission delay and/or the transmission error rate of the first downlink data frame is not When the preset data frame transmission condition (such as the KPI index of the URLLC) is met, the base station may send the third downlink data frame including the second notification information to the terminal by using the same frame structure as in FIG. 6 . The second notification information is used to notify the terminal to reduce a preset number (eg, one, two) of the first downlink data frame that is preset by the user/system in the base station/terminal. The number of DL regions to form a new downlink data frame. Preferably, in order to ensure better data communication between the base station and the terminal, the terminal may be notified to reduce the number of DL areas of the first downlink data frame one by one, and form a new downlink data frame. The base station may directly allocate, by using the second notification information/the second downlink data frame, a DL area of 7 symbol lengths for the new data frame, that is, 2 of the original first downlink data frames. The DL area is changed to one DL area, that is, it is changed to a frame structure diagram as shown in FIG. 5.

Optionally, the determining whether the transmission delay and/or the transmission error rate meets a preset data frame transmission condition includes:

Determining whether the transmission delay exceeds a preset delay threshold, and/or determining whether the transmission error rate exceeds a preset error rate threshold;

If the transmission delay exceeds a preset delay threshold, and/or the transmission error rate exceeds a preset error rate threshold, determining that the transmission delay and/or the transmission error rate does not satisfy the pre- The data frame transmission condition is set; otherwise, it is determined that the transmission delay and/or the transmission error rate satisfy a preset data frame transmission condition.

In a specific implementation, the base station may determine whether the transmission delay of the first downlink data frame received in step S101 is greater than or equal to a preset delay threshold that is preset by the user/system in the base station (eg, The unidirectional transmission delay in the URLLC scenario is 0.5 ms), and/or the base station can determine whether the transmission error rate received in step S101 is greater than or equal to a pre-defined preset by the user/system in the base station. Set the error rate threshold (for example, the transmission reliability in the URLLC scenario needs to be 99.999%, the bit error rate cannot exceed 0.001%, etc.). When the base station determines that the transmission delay is greater than or equal to a preset delay threshold, and/or the transmission error rate is greater than or equal to a preset error rate threshold, the base station may determine the The transmission delay and/or the transmission error rate do not satisfy the preset data frame transmission condition; otherwise, the base station may determine that the transmission delay and/or the transmission error rate satisfy a preset data frame transmission condition.

Optionally,

When the transmission error rate does not meet the preset data frame transmission condition, the number of DL regions in the current first downlink data frame is kept unchanged, and the number of scheduled DL regions used for transmitting downlink data is reduced. Forming a new downlink data frame;

The scheduling DL area is at least one of the DL areas of the first downlink data frame, and the number of the scheduling DL areas is smaller than the number of the DL areas of the first downlink data frame.

When the base station determines that the transmission error rate does not meet the preset data frame transmission condition (such as the KPI indicator of the URLLC), the base station may maintain the number of DL areas in the current first downlink data. The number of scheduled DL regions used to transmit downlink data in the actual transmission is reduced to form a new downlink data frame. For example, if the first downlink data frame sent by the base station to the terminal adopts a frame structure diagram as shown in FIG. 6, when the base station detects the transmission error of the first downlink data frame. When the rate does not meet the preset data frame transmission condition (the KPI indicator of the URLLC), the base station may also adopt a frame structure diagram as shown in FIG. 7, but it can actually be used when performing downlink data transmission. The number of scheduled DL areas will be changed to one (ie, the original two scheduled DL areas will be changed to one scheduled DL area, but the total resources of the DL area will not change), so that the base The station may not roll back the frame structure, but reduce the downlink scheduling DL area and increase the usage resources of a single DL area (such as increasing 3 symbols from each original DL area to 6 symbols), which reduces the channel coding rate increase. The reliability of data transmission. For details, refer to the structure diagram of a new downlink data frame as shown in FIG. 7 .

Optionally, the method further includes:

When it is detected that the new downlink data frame is sent to the terminal, if the transmission delay and/or the transmission error rate of the new downlink data frame meet a preset data frame transmission condition, the new The number of DL regions of the downlink data frame, and so on, until the number of DL regions of the new downlink data frame reaches a preset DL saturation threshold supported by the data frame transmission condition.

When the base station uses the frame structure of the new downlink data frame to send a corresponding new downlink data frame to the terminal, the base station may also re-statistically determine the transmission delay of the new downlink data frame. And/or whether the transmission error rate satisfies the new data frame transmission condition that the user/system pre-defined in the base station (for example, the cascading transmission delay in the URLLC scenario does not exceed 0.7 ms, and the reliability needs to reach 99.999%, that is, The bit error rate needs to be less than 0.001%); when the transmission delay and/or the transmission error rate of the new downlink data frame meets the preset data frame transmission condition, then the base station may also be in the new Adding a preset number (such as 1, 2, etc.) DL area in the downlink data frame, preferably to meet the preset data frame transmission condition, the base station may increment the DL area of the new downlink data frame one by one. The number to form a new downlink data frame, and so on, is repeated, until the number of DL regions added to the new downlink data frame does not exceed the preset data frame transmission condition (such as the URLLC scenario) KPI indicators) corresponding to DL predetermined saturation threshold (e.g., 10, etc.). For details, refer to the structure diagram of a multi-level cascading frame as shown in FIG. 8.

Preferably, the foregoing notification information, the first notification information, and the second notification information may include broadcast information, that is, in a specific implementation, the base station may encapsulate the broadcast information into a corresponding data frame (ie, the second downlink mentioned above). The data frame and the third downlink data frame are transmitted to the terminal through a physical broadcast PBCH (Physical Broadcast Channel) channel.

Optionally, the first downlink data frame includes at least one downlink data subframe, where the downlink data subframe includes the DL area and a feedback A/K area, where the A/K area is used to The base station feeds back the confirmation information about the first downlink data frame, where the method further includes:

Receiving, by the terminal, the acknowledgement information about the first downlink data frame that is fed back to the base station.

When the terminal receives the first downlink data frame sent by the base station, the terminal may parse the first downlink data frame, such as the DL of the first downlink data frame. The area (that is, the DL area corresponding to each downlink data transmission subframe of the first downlink data frame), such as a check code, an error correction code, and the like, performs error detection analysis to identify the Whether the downlink data transmitted by the DL area is erroneous, and further, the terminal may send feedback to the base station by using the A/K acknowledgment information of the error detection analysis (such as a certain downlink data subframe transmission error/error). So that the base station determines, according to the A/K acknowledgment information, whether the first downlink data frame needs to be transmitted to the terminal again.

Optionally,

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back through the A/K region of each downlink data subframe; or

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back by the A/K region of the target downlink data subframe corresponding to the preset number of each downlink data subframe interval; or ,

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back by the A/K region of the preset target downlink data subframe.

In a specific implementation, the terminal may encapsulate the A/K acknowledgment information of each downlink data subframe of the first downlink data frame into a feedback A/K region of the current/current downlink data subframe by using a non-delay feedback format. And transmitting the feedback to the base station, as shown in FIG. 9, a schematic structural diagram of a non-delayed feedback data frame transmission; or the terminal may use the delay feedback form to The A/K acknowledgment information of each downlink data subframe of the downlink data frame is encapsulated into a target downlink data subframe corresponding to the preset number of the current downlink data subframe interval that is preset by the user/system in the terminal. The A/K area (such as the interval of one, that is, the A/K area of the next downlink data subframe) is further transmitted to the base station by feedback, as shown in FIG. 10, and a delay is given. A schematic diagram of the structure of the feedback data frame transmission. The A/K acknowledgment information of the current downlink data subframe may be fed back by the A/K area of the next or a preset number of target downlink data subframes; or, the terminal may use The A/K acknowledgment information of each downlink data subframe of the first downlink data frame is encapsulated into the A/K area of the target downlink data subframe that is preset by the user/system in the terminal. And further transmitting the feedback to the base station, as shown in FIG. A schematic diagram of the structure of the cascaded feedback data frame transmission is given. The A/K acknowledgement information of all the downlink data subframes before the preset target downlink data subframe may be the A/K region of the target downlink data subframe. Give feedback.

It should be noted that, after the base station sends the first downlink data frame, the second downlink data frame, the third downlink data frame, or the new downlink data frame to the terminal, the terminal may The base station feeds back the A/K acknowledgment information of the corresponding downlink data frame, and the subframes in the specific downlink data frame (ie, the downlink data subframe) may be in the form of delay, non-delay, cascading, etc. The A/K acknowledgment information of the corresponding downlink data frame/subframe is fed back by the base station, which is not limited in the embodiment of the present invention.

In order to help people further understand the above embodiments, the following is specifically explained by three examples. Embodiment 1: It is assumed that a certain type of terminal and a base station need to perform data transmission in a URLLC scenario. When the base station initially establishes communication with the terminal, the downlink data transmission and uplink feedback are performed according to the frame structure shown in FIG. 5 above; The base station sends a first downlink data frame to the terminal, and statistics that the transmission error rate and the transmission delay of the first downlink data frame satisfy the KPI indicator of the URLLC scenario (ie, one-way uplink and downlink 0.5 ms) The transmission delay, the transmission reliability is 99.999%, and the error rate is not more than 0.001%. At this time, the base station notifies the terminal to change the frame structure by using a system message (ie, a broadcast message), as shown in FIG. 6. The subsequent base station may send a corresponding new downlink data frame (ie, downlink data) to the terminal according to the frame structure as shown in FIG. 6, and further, the base station may re-count the terminal to receive the new downlink data frame. Transmit bit error rate and transmission delay. During a certain period of time, when the transmission error rate and/or transmission delay of the new downlink data frame cannot meet the KPI indicator of the URLLC scenario (ie, the one-way transmission delay of the uplink and downlink 0.5 ms, the error rate does not exceed 0.001. %), at this time, the base station can notify the terminal to fall back to the frame structure shown in FIG. 5, and reduce the delay caused by the cascade or increase the bit error rate.

Embodiment 2: It is assumed that a certain type of terminal and a base station need to perform data transmission in a URLLC scenario. When the base station initially establishes communication with the terminal, the downlink data transmission and uplink feedback are performed according to the frame structure shown in FIG. 5 above; The base station sends a first downlink data frame to the terminal, and statistics that the transmission error rate and the transmission delay of the first downlink data frame satisfy the KPI indicator of the URLLC scenario (ie, one-way uplink and downlink 0.5 ms) a transmission delay, a transmission reliability of 99.999%, and a bit error rate of no more than 0.001%. At this time, the base station notifies the terminal to change the frame structure by using a system message (ie, a broadcast message). Specifically, as shown in Figure 6. The subsequent base station may send a corresponding new downlink data frame (ie, downlink data) to the terminal according to the frame structure as shown in FIG. 6, and further, the base station may re-count the terminal to receive the new downlink data frame. Transmit bit error rate and transmission delay. During a certain period of time, when the transmission error rate of the new downlink data frame does not meet the KPI indicator in the current scenario, if the channel condition is degraded, causing more error codes, the cascaded data block (ie, the DL region) The number of retransmissions increases, the base station does not roll back the frame structure, but reduces the downlink scheduled data block (ie, reduces the downlink scheduling DL area), as shown in FIG. 7, increases the use resource of a single data block (ie, DL area), and reduces Channel coding rate to improve reliability.

Embodiment 3: It is assumed that a certain type of terminal and a base station need to perform data transmission in a URLLC scenario. When the base station initially establishes communication with the terminal, the downlink data transmission and uplink feedback are performed according to the frame structure shown in FIG. 5 above; The base station sends a first downlink data frame to the terminal, and statistics that the transmission error rate and the transmission delay of the first downlink data frame satisfy the KPI indicator of the URLLC scenario (ie, one-way uplink and downlink 0.5 ms) The transmission delay, the transmission reliability is 99.999%, and the error rate is not more than 0.001%. At this time, the base station notifies the terminal to change the frame structure by using a system message (ie, a broadcast message), as shown in FIG. 6. The subsequent base station may send a corresponding new downlink data frame (ie, downlink data) to the terminal according to the frame structure as shown in FIG. 6, and further, the base station may re-count the terminal to receive the new downlink data frame. Transmit bit error rate and transmission delay. During a certain period of time, when the transmission error rate or transmission delay of the new downlink data frame satisfies the KPI indicator in the current scenario, if the channel condition is good, the transmission delay of the new downlink data frame in the cascade mode or The transmission error rate satisfies the KPI indicator, and the base station continues to increase the number of downlink data block cascades, as shown in FIG. 8. When the downlink cascade number reaches the system upper limit, the system does not update the frame structure and monitors the new downlink data frame in real time. The transmission delay and the transmission error rate determine whether a frame structure rollback is required.

The embodiment of the present invention may receive the transmission delay and/or the transmission error rate of the first downlink data frame reported by the terminal, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used. And transmitting the downlink data, and then determining whether the transmission delay and/or the transmission error rate meet the preset data frame transmission condition, and if yes, sending the second downlink data frame to the terminal, where the second downlink data is The number of DL areas of the frame is the same as the number of DL areas of the first downlink data frame, and the DL area of the second downlink data frame is used for transmitting first notification information, where the first notification information is used to notify the The terminal increases the number of DL regions of the first downlink data frame in a preset cascade manner. The new downlink data frame is formed, and the downlink data is transmitted according to the new downlink data frame, so that the number of uplink and downlink handovers of the data transmission can be reduced, and the requirement for the terminal hardware device is reduced.

Referring to FIG. 12, it is a schematic flowchart of a method for data frame transmission processing according to a third embodiment of the present invention. The data frame transmission processing party shown in the figure may include the following steps:

S201. The transmission delay and/or the transmission error rate of the first downlink data frame reported by the receiving terminal, where the first downlink data frame includes at least one downlink data transmission DL area, and the DL area is used to transmit downlink data. .

S202. Determine whether the transmission delay exceeds a preset delay threshold.

In the embodiment of the present invention, when the base station determines that the transmission delay exceeds a preset delay threshold, it is determined that the transmission delay does not meet a preset data frame transmission condition, and the base station ends the process or continues to perform the steps. S205; otherwise, determining that the transmission delay meets a preset data frame transmission condition, and continuing to step S203.

S203. Determine whether the transmission error rate exceeds a preset error rate threshold.

In the embodiment of the present invention, when the base station determines that the transmission error rate exceeds a preset error rate threshold, it is determined that the transmission error rate does not meet a preset data frame transmission condition, and the base station ends the process or Step S205 or S206 is continued; otherwise, it is determined that the transmission error rate satisfies the preset data frame transmission condition, and then step S204 is continued.

S204. Send a second downlink data frame to the terminal, where the number of DL regions of the second downlink data frame is the same as the number of DL regions of the first downlink data frame, and the DL of the second downlink data frame. The area is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the number of DL areas of the first downlink data frame in a preset cascading manner to form a new downlink data frame.

S205. When the transmission delay and/or the transmission error rate does not meet the preset data frame transmission condition, send a third downlink data frame to the terminal, where the DL of the third downlink data frame The number of the regions is the same as the number of DL regions of the first downlink data frame, and the DL region of the third downlink data frame is used to transmit second notification information, where the second notification information is used to notify the terminal to reduce The number of DL regions of the first downlink data frame to form a new downlink data frame.

S206. When the transmission error rate does not meet the preset data frame transmission condition, keep the number of DL regions in the current first downlink data frame unchanged, and reduce the number of scheduled DL regions used for transmitting downlink data. Forming a new downlink data frame; wherein the scheduling DL region is the first downlink At least one of the DL regions of the row data frame, and the number of the scheduled DL regions is less than the number of DL regions of the first downlink data frame.

S207. When detecting that the new downlink data frame is sent to the terminal, if the transmission delay and/or the transmission error rate of the new downlink data frame meet a preset data frame transmission condition, increase the location. The number of DL regions of the new downlink data frame is, and so on, until the number of DL regions of the new downlink data frame reaches a preset DL saturation threshold that is supported by the data frame transmission condition.

Optionally, the foregoing first notification information and second notification information may include broadcast information.

S208. Receive acknowledgment information about the first downlink data frame that is sent by the terminal to the base station, where the acknowledgment information of each downlink data subframe in the first downlink data frame passes the foregoing The A/K area of the downlink data subframe is fed back; or the acknowledgment information of each downlink data subframe in the first downlink data frame is corresponding to the preset number of intervals of each downlink data subframe. The A/K area of the target downlink data subframe is fed back; or the acknowledgement information of each downlink data subframe in the first downlink data frame is fed back through the A/K area of the preset target downlink data subframe. .

It should be noted that, the base station may further receive, in the first downlink data frame, the second downlink data frame, the third downlink data frame, or the new downlink data frame, that the terminal feeds back to the base station. The acknowledgment information of any one or more data frames, further the acknowledgment information of each subframe (ie, the downlink data subframe) included in the downlink data frames may pass the A/K of the current own subframe or the next subframe. The area is fed back, or the acknowledgement information of each subframe (ie, the downlink data subframe) included in the downlink data frames may be fed back by the A/K area of the preset number of target subframes from the current subframe, or The A/K area (the A/K area of the last data sub-frame in the following data frame) of the data sub-frame specified by the user/system is fed back to the base station.

FIG. 13 is a schematic flowchart of a data frame transmission processing method according to a fourth embodiment of the present invention. The method in the embodiment of the present invention may be as follows.

S301. When receiving the first downlink data frame sent by the base station, calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame, where the first downlink data frame includes At least one downlink data transmission DL area for transmitting downlink data.

S302, reporting the calculated transmission delay and/or the transmission error rate of the first downlink data frame to the base station, so that the base station is configured according to the transmission delay of the first downlink data frame and/or Transmitting the error rate to adjust the first downlink data frame.

Referring to FIG. 14, FIG. 14 is a schematic flowchart of a data frame transmission processing method according to a fifth embodiment of the present invention. The method in the embodiment of the present invention may be performed in the foregoing steps S301 and S302.

S401: Receive a second downlink data frame sent by the base station, and parse the corresponding first notification information, where the number of DL areas of the second downlink data frame and the DL area of the first downlink data frame The DL area of the second downlink data frame is used to transmit the first notification information, and the first notification information is used to notify the terminal to increase the first downlink data frame in a preset cascade manner. The number of DL regions to form a new downlink data frame.

S402: Receive a third downlink data frame sent by the base station, and parse the corresponding second notification information, where the number of DL regions of the third downlink data frame and the DL region of the first downlink data frame The DL area of the third downlink data frame is used to transmit the second notification information, and the second notification information is used to notify the terminal to reduce the number of DL areas of the first downlink data frame, A new downlink data frame is formed.

It should be noted that the execution order of the above steps S301 and S302 is variable.

The embodiment of the present invention may calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station, where the first downlink The row data frame includes at least one downlink data transmission DL area, where the DL area is used for transmitting downlink data; and then the calculated transmission delay and/or transmission error rate of the first downlink data frame is reported to the base station. , The base station correspondingly adjusts a frame structure of the first downlink data frame according to a transmission delay and/or a transmission error rate of the first downlink data frame, so that the transmission delay of the downlink data frame may be The transmission error rate is adjusted to adjust the frame structure of the new downlink data frame to be transmitted next time, thereby reducing the number of uplink and downlink handovers of the entire data transmission, and reducing the requirements on the terminal hardware device.

15 is a schematic flowchart of a data frame transmission processing method according to a sixth embodiment of the present invention. The method in the embodiment of the present invention may be implemented in all or part of the foregoing steps in FIG. 13 or 14, wherein The following steps are also possible.

S501. If the first downlink data frame includes at least one downlink data subframe, where the downlink data subframe includes the DL region and the feedback A/K region, each of the first downlink data frames is used. The acknowledgement information of the downlink data subframes is fed back to the base station through the A/K region of each downlink data subframe.

In the embodiment of the present invention, the A/K area is used to feed back confirmation information about the first downlink data frame to the base station.

S502. If the first downlink data frame includes at least one downlink data subframe, where the downlink data subframe includes the DL region and the feedback A/K region, each of the first downlink data frames is used. The acknowledgment information of the downlink data sub-frames is fed back to the base station by using an A/K area of the target downlink data sub-frame corresponding to the preset number of each downlink data sub-frame.

S503. If the first downlink data frame includes at least one downlink data subframe, where the downlink data subframe includes the DL region and the feedback A/K region, each of the first downlink data frames is used. The acknowledgement information of the downlink data subframes is fed back to the base station by using the A/K region of the preset target downlink data subframe.

It should be noted that the foregoing steps S501 to S503 are parallel and optional, that is, the terminal may select any one of the foregoing steps S501 to S503 to perform, which is not limited in the embodiment of the present invention.

Referring to FIG. 16, which is a schematic structural diagram of a base station according to a seventh embodiment of the present invention, the base station 16 of the embodiment of the present invention includes:

The receiving unit 10 is configured to receive a transmission delay and/or a transmission error rate of the first downlink data frame reported by the terminal, where the first downlink data frame includes at least one downlink data transmission DL area, and the DL area is used by For transmitting downlink data;

The sending unit 11 is configured to determine, according to the transmission delay and/or the transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used to transmit a corresponding target notification. And the target notification information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.

For a specific implementation of the various units involved in the embodiments of the present invention, reference may be made to the description of related functional units or implementation steps in the corresponding embodiments in FIG. 1 to FIG. 16 , and details are not described herein.

The embodiment of the present invention may receive the transmission delay and/or the transmission error rate of the first downlink data frame reported by the terminal, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used. And transmitting the downlink data, and then determining whether the transmission delay and/or the transmission error rate meet the preset data frame transmission condition, and if yes, sending the second downlink data frame to the terminal, where the second downlink data is The number of DL areas of the frame is the same as the number of DL areas of the first downlink data frame, and the DL area of the second downlink data frame is used for transmitting first notification information, where the first notification information is used to notify the The terminal increases the number of DL areas of the first downlink data frame in a preset cascading manner to form a new downlink data frame, and then transmits downlink data according to the new downlink data frame, thereby reducing data transmission. The number of uplink and downlink handovers reduces the requirements on the hardware of the terminal.

Referring to FIG. 17, which is a schematic structural diagram of a base station according to an eighth embodiment of the present invention, the base station 17 in the embodiment of the present invention may include: the receiving unit 10 and the sending unit 11, where

The sending unit 11 is further configured to: when the transmission delay and/or the transmission error rate does not meet a preset data frame transmission condition, send a third downlink data frame to the terminal;

The number of DL areas of the third downlink data frame is the same as the number of DL areas of the first downlink data frame, and the DL area of the third downlink data frame is used for transmitting second notification information, where The second notification information is used to notify the terminal to reduce the number of DL regions of the first downlink data frame to form a new downlink data frame.

Optionally,

The sending unit 11 is specifically configured to determine whether the transmission delay exceeds a preset delay threshold, and/or determine whether the transmission error rate exceeds a preset error rate threshold; if the transmission is If the delay exceeds the preset delay threshold, and/or the transmission error rate exceeds the preset error rate threshold, it is determined that the transmission delay and/or the transmission error rate does not satisfy the preset data frame transmission. Condition; otherwise, it is determined that the transmission delay and/or the transmission error rate satisfy a preset data frame transmission condition.

Optionally, the base station further includes:

The first processing unit 12 is configured to: when the transmission error rate does not meet the preset data frame transmission condition, keep the number of DL regions in the current first downlink data frame unchanged, and reduce the downlink data used for transmission. Scheduling the number of DL regions to form new downlink data frames;

Optionally, the base station further includes:

The second processing unit 13 is configured to: when detecting the sending of the new downlink data frame to the terminal, if the transmission delay and/or the transmission error rate of the new downlink data frame meets a preset data frame The transmission condition increases the number of DL regions of the new downlink data frame, and so on, until the number of DL regions of the new downlink data frame reaches a preset DL saturation threshold supported by the data frame transmission condition. .

Optionally, the first notification information and the second notification information comprise broadcast information.

Optionally, the first downlink data frame includes at least one downlink data subframe, where the downlink data subframe includes the DL area and a feedback A/K area, where the A/K area is used to The base station feeds back confirmation information about the first downlink data frame,

The receiving unit 10 is further configured to receive acknowledgement information about the first downlink data frame that is sent by the terminal to the base station.

Optionally,

The embodiment of the present invention can receive the transmission delay and/or transmission of the first downlink data frame reported by the terminal. Transmitting the error rate, the first downlink data frame includes at least one downlink data transmission DL area, the DL area is used for transmitting downlink data, and then determining whether the transmission delay and/or the transmission error rate meets a preset a data frame transmission condition, if yes, sending a second downlink data frame to the terminal, where the number of DL regions of the second downlink data frame is the same as the number of DL regions of the first downlink data frame, The DL area of the second downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the number of DL areas of the first downlink data frame in a preset cascading manner. The new downlink data frame is formed, and the downlink data is transmitted according to the new downlink data frame, so that the number of uplink and downlink handovers of the data transmission can be reduced, and the requirement for the terminal hardware device is reduced.

Referring to FIG. 18, it is a schematic structural diagram of a terminal according to a ninth embodiment of the present invention. The terminal 18 of the embodiment of the present invention includes:

The calculating unit 20 is configured to calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station, where the first downlink The row data frame includes at least one downlink data transmission DL region, and the DL region is used for transmitting downlink data;

The reporting unit 21 is configured to report the transmission delay and/or the transmission error rate of the first downlink data frame calculated by the calculating unit 20 to the base station, so that the base station is configured according to the first downlink The transmission delay of the data frame and/or the transmission error rate are correspondingly adjusted to adjust the new downlink data frame to be transmitted next time.

For specific implementations of the various units involved in the embodiments of the present invention, reference may be made to the description of related functional units or implementation steps in the corresponding embodiments in FIG. 1 to FIG. 15 , and details are not described herein.

The embodiment of the present invention may calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station, where the first downlink The row data frame includes at least one downlink data transmission DL area, where the DL area is used for transmitting downlink data; and then the calculated transmission delay and/or transmission error rate of the first downlink data frame is reported to the base station. The base station correspondingly adjusts the frame structure of the first downlink data frame according to the transmission delay and/or the transmission error rate of the first downlink data frame, so that the transmission delay of the downlink data frame may be And/or transmitting the error rate to adjust the frame structure of the new downlink data frame to be transmitted next time, thereby reducing the number of uplink and downlink switching of the entire data transmission, and reducing the requirements on the terminal hardware device.

Referring to FIG. 19, it is a schematic structural diagram of a terminal according to a tenth embodiment of the present invention. The terminal 19 of the embodiment of the present invention includes: the computing unit 20 and the reporting unit 21, wherein the terminal further includes:

The receiving unit 22 is configured to receive a target downlink data frame sent by the base station, and parse the corresponding target notification information;

The DL area of the target downlink data frame is used to transmit corresponding target notification information, where the target notification information is used to notify the terminal to change the number of DL areas of the first downlink data frame to form a new one. Downstream data frame.

Optionally,

The receiving unit is configured to: when the target downlink data frame includes the second downlink data frame, parse the second downlink data frame to obtain corresponding first notification information;

The DL area of the second downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the DL area of the first downlink data frame in a preset cascading manner. The number of new data frames to form.

Optionally,

The receiving unit is configured to: when the target downlink data frame includes a third downlink data frame, parse the third downlink data frame to obtain corresponding second notification information;

The DL area of the third downlink data frame is used to transmit second notification information, where the second notification information is used to notify the terminal to reduce the number of DL areas of the first downlink data frame to form a new Downstream data frame.

Optionally, the terminal further includes:

The feedback unit 23 is configured to feed back the acknowledgement information of each downlink data subframe in the first downlink data frame to the base station by using the A/K region of each downlink data subframe; or

The feedback unit 23 is configured to: pass the acknowledgement information of each downlink data subframe in the first downlink data frame by a preset number of target downlink data subframes corresponding to each of the downlink data subframes. /K area is fed back to the base station; or,

The feedback unit 23 is configured to feed back the acknowledgement information of each downlink data subframe in the first downlink data frame to the base station by using an A/K region of the preset target downlink data subframe.

The embodiment of the present invention may calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station, where the first downlink Row data The frame includes at least one downlink data transmission DL area, where the DL area is used for transmitting downlink data; and then the calculated transmission delay and/or transmission error rate of the first downlink data frame is reported to the base station, so that The base station correspondingly adjusts a frame structure of the first downlink data frame according to a transmission delay and/or a transmission error rate of the first downlink data frame, so that the transmission delay of the downlink data frame may be Or transmit the error rate to adjust the frame structure of the new downlink data frame to be transmitted next time, thereby reducing the number of uplink and downlink switching of the entire data transmission, and reducing the requirements on the terminal hardware device.

FIG. 20 is a schematic structural diagram of a base station according to an eleventh embodiment of the present invention. As shown in FIG. 20, the base station 2000 can include:

The input device 201, the output device 202, the memory 203, and the processor 204 (the number of the processors 204 in the network device may be one or more, and one processor in FIG. 17 is taken as an example). In some embodiments of the present invention, the input device 201, the output device 202, the memory 203, and the processor 204 may be connected by a bus or other means, wherein the bus connection is taken as an example in FIG.

The processor 204 is configured to perform the following steps:

The processor 204 is further configured to perform the following steps:

And if the second downlink data frame is sent to the terminal, the number of DL regions of the second downlink data frame is the same as the number of DL regions of the first downlink data frame, and the second downlink data frame is The DL area is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the number of DL areas of the first downlink data frame in a preset cascading manner to form new downlink data. frame.

The processor 204 is further configured to perform the following steps:

Determining whether the transmission delay exceeds a preset delay threshold, and/or determining the transmission error Whether the rate exceeds a preset error rate threshold;

The processor 204 is further configured to perform the following steps:

When the transmission delay and/or the transmission error rate does not satisfy the preset data frame transmission condition, sending a third downlink data frame to the terminal;

The processor 204 is further configured to perform the following steps:

The processor 204 is further configured to perform the following steps: the first notification information and the second notification information include broadcast information.

The processor 204 is further configured to perform the following steps:

Confirmation information of each downlink data subframe in the first downlink data frame passes each of the next Feedback in the A/K area of the row data sub-frame; or,

FIG. 21 is a schematic structural diagram of a terminal according to a twelfth embodiment of the present invention. The terminal in this embodiment as shown may include one or more processors 801; one or more input devices 802, one or more output devices 803, and memory 804. The above processor 801, input device 802, output device 803, and memory 804 are connected by a bus 805. The memory 802 is for storing instructions, and the processor 801 is for executing instructions stored by the memory 802. The processor 801 is configured to:

Transmitting the calculated transmission delay and/or transmission error rate of the first downlink data frame to the base station, so that the base station is configured according to the transmission delay and/or transmission error of the first downlink data frame. The code rate corresponds to the adjustment of the new downlink data frame that needs to be transmitted next time.

Further, the processor 801 is further configured to:

Receiving a target downlink data frame sent by the base station, and parsing the corresponding target notification information;

The DL area of the target downlink data frame is used to transmit corresponding target notification information. The target notification information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.

Further, the processor 801 is further configured to:

When the target downlink data frame includes the second downlink data frame, parsing the second downlink data frame to obtain corresponding first notification information;

Further, the processor 801 is further configured to:

When the target downlink data frame includes the third downlink data frame, parsing the third downlink data frame to obtain corresponding second notification information;

Further, the processor 801 is further configured to: the first notification information and the second notification information include broadcast information.

Further, the processor 801 is further configured to: if the first downlink data frame includes at least one downlink data subframe, the downlink data subframe includes the DL region and a feedback A/K region, where the A And the acknowledgment information about the first downlink data frame is sent to the base station, and the acknowledgment information of each downlink data subframe in the first downlink data frame is passed through each of the downlink data. The A/K area of the subframe is fed back to the base station; or the acknowledgment information of each downlink data subframe in the first downlink data frame is separated from the each downlink data subframe by a preset number. The A/K area of the corresponding target downlink data subframe is fed back to the base station; or the acknowledgement information of each downlink data subframe in the first downlink data frame is passed through the preset target downlink data subframe A. The /K area is fed back to the base station. then

It should be understood that, in the embodiment of the present invention, the processor 801 may be a central processing unit (CPU), and the processor may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The input device 802 may include a touchpad, a fingerprint sensor (for collecting fingerprint information of the user and direction information of the fingerprint), a microphone, and the like, and the output device 803 may include a display (LCD or the like), a speaker, and the like.

The memory 804 can include read only memory and random access memory and provides instructions and data to the processor 801. A portion of the memory 804 may also include a non-volatile random access memory. For example, the memory 804 can also store information of the device type.

In a specific implementation, the processor 801, the input device 802, and the output device 803, which are described in the embodiments of the present invention, may be described in the first embodiment and the tenth embodiment of the data frame transmission processing method provided by the embodiment of the present invention. The implementation manner of the terminal described in the embodiment of the present invention may also be implemented in the implementation manner, and details are not described herein again.

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, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. 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 for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the terminal and the unit described above can be referred 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 terminal and method 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, or an electrical, mechanical or other form of connection.

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

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included 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 invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention by any person skilled in the art. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A method for data frame transmission processing, characterized in that the method comprises:

Receiving, by the terminal, a transmission delay and/or a transmission error rate of the first downlink data frame, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used for transmitting downlink data;

And determining, according to the transmission delay and/or the transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used to transmit corresponding target notification information, where the target notification is sent. The information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.
The method according to claim 1, wherein the target downlink data frame comprises a second downlink data frame or a third downlink data frame, and the determining is based on the transmission delay and/or the transmission error rate. Sending, to the terminal, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used for transmitting corresponding target notification information, where the target notification information is used to notify the terminal to change the first downlink data frame. The number of DL regions to form new downstream data frames, including:

Determining whether the transmission delay and/or the transmission error rate meet a preset data frame transmission condition;

If yes, the second downlink data frame is sent to the terminal, where the DL area of the second downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to cascade by default. The method increases the number of DL regions of the first downlink data frame to form a new downlink data frame.
The method according to claim 2, wherein the target downlink data frame comprises a second downlink data frame or a third downlink data frame, and the determining is based on the transmission delay and/or the transmission error rate. Sending, to the terminal, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used for transmitting corresponding target notification information, where the target notification information is used to notify the terminal to change the first downlink data frame. The number of DL regions to form new downstream data frames, including:

And when the transmission delay and/or the transmission error rate does not meet the preset data frame transmission condition, sending a third downlink data frame to the terminal, where the DL area of the third downlink data frame is used for transmission a second notification information, where the second notification information is used to notify the terminal to reduce the first downlink data frame. The number of DL regions to form a new downlink data frame.
The method according to claim 2, wherein the determining whether the transmission delay and/or the transmission error rate meets a preset data frame transmission condition comprises:

Determining whether the transmission delay exceeds a preset delay threshold, and/or determining whether the transmission error rate exceeds a preset error rate threshold;

If the transmission delay exceeds a preset delay threshold, and/or the transmission error rate exceeds a preset error rate threshold, determining that the transmission delay and/or the transmission error rate does not satisfy the pre- The data frame transmission condition is set; otherwise, it is determined that the transmission delay and/or the transmission error rate satisfy a preset data frame transmission condition.
The method of claim 2, wherein the method further comprises:

When the transmission error rate does not meet the preset data frame transmission condition, the number of DL regions in the current first downlink data frame is kept unchanged, and the number of scheduled DL regions used for transmitting downlink data is reduced. Forming a new downlink data frame;

The scheduling DL area is at least one of the DL areas of the first downlink data frame, and the number of the scheduling DL areas is smaller than the number of the DL areas of the first downlink data frame.
The method of any of claims 1-5, wherein the method further comprises:

When it is detected that the new downlink data frame is sent to the terminal, if the transmission delay and/or the transmission error rate of the new downlink data frame meet a preset data frame transmission condition, the new The number of DL regions of the downlink data frame, and so on, until the number of DL regions of the new downlink data frame reaches a preset DL saturation threshold supported by the data frame transmission condition.
The method of claim 2 or 3, wherein the first notification information and the second notification information comprise broadcast information.
The method of claim 1 wherein said first downlink data frame comprises to One downlink data subframe, the downlink data subframe includes the DL region and a feedback A/K region, and the A/K region is configured to feed back, to the base station, acknowledge information about the first downlink data frame. The method further includes:

Receiving, by the terminal, the acknowledgement information about the first downlink data frame that is fed back to the base station.
The method of claim 8 wherein:

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back through the A/K region of each downlink data subframe; or

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back by the A/K region of the target downlink data subframe corresponding to the preset number of each downlink data subframe interval; or ,

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back by the A/K region of the preset target downlink data subframe.
A method for data frame transmission processing, characterized in that the method comprises:

Calculating and determining a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station; where the first downlink data frame includes at least one Downlink data transmission DL area, the DL area is used for transmitting downlink data;

Transmitting the calculated transmission delay and/or transmission error rate of the first downlink data frame to the base station, so that the base station is configured according to the transmission delay and/or transmission error of the first downlink data frame. The code rate corresponds to the adjustment of the new downlink data frame that needs to be transmitted next time.
The method of claim 10, wherein the method further comprises:

Receiving a target downlink data frame sent by the base station, and parsing the corresponding target notification information;

The DL area of the target downlink data frame is used to transmit corresponding target notification information, where the target notification information is used to notify the terminal to change the number of DL areas of the first downlink data frame to form a new one. Downstream data frame.
The method of claim 11 wherein:

When the target downlink data frame includes the second downlink data frame, parsing the second downlink data frame to obtain corresponding first notification information;

The DL area of the second downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the DL area of the first downlink data frame in a preset cascading manner. The number of new data frames to form.
The method of claim 11 wherein:

When the target downlink data frame includes the third downlink data frame, parsing the third downlink data frame to obtain corresponding second notification information;

The DL area of the third downlink data frame is used to transmit second notification information, where the second notification information is used to notify the terminal to reduce the number of DL areas of the first downlink data frame to form a new Downstream data frame.
The method of claim 12 or 13, wherein the first notification information and the second notification information comprise broadcast information.
The method according to claim 10, wherein said first downlink data frame comprises at least one downlink data subframe, said downlink data subframe comprises said DL region and a feedback A/K region, said A The /K area is used to feed back confirmation information about the first downlink data frame to the base station, where the method further includes:

And confirming, by the A/K area of each downlink data subframe, the acknowledgement information of each downlink data subframe in the first downlink data frame to the base station; or

And returning the acknowledgement information of each downlink data subframe in the first downlink data frame to the A/K region of the target downlink data subframe corresponding to the preset number of the downlink data subframes. Said base station; or,

And confirming the acknowledgement information of each downlink data subframe in the first downlink data frame to the base station by using an A/K region of the preset target downlink data subframe.
A base station, the base station includes:

a receiving unit, configured to receive a transmission delay and/or a transmission error rate of the first downlink data frame reported by the terminal, where the first downlink data frame includes at least one downlink data transmission DL area, where the DL area is used Transmit downlink data;

And a sending unit, configured to determine, according to the transmission delay and/or the transmission error rate, a corresponding target downlink data frame, where the DL area of the target downlink data frame is used to transmit the corresponding target notification information. And the target notification information is used to notify the terminal to change the number of DL regions of the first downlink data frame to form a new downlink data frame.
The base station of claim 16 wherein:

The sending unit is specifically configured to determine whether the transmission delay and/or the transmission error rate meet a preset data frame transmission condition; if yes, send a second downlink data frame to the terminal, where the second The DL area of the downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the number of DL areas of the first downlink data frame in a preset cascading manner to form a new Downstream data frame.
The base station according to claim 17, wherein

The sending unit is further configured to: when the transmission delay and/or the transmission error rate does not meet a preset data frame transmission condition, send a third downlink data frame to the terminal, where the third The DL area of the downlink data frame is used to transmit the second notification information, where the second notification information is used to notify the terminal to reduce the number of DL areas of the first downlink data frame to form a new downlink data frame.
The base station according to claim 17, wherein

The sending unit is specifically configured to determine whether the transmission delay exceeds a preset delay threshold, and/or determine whether the transmission error rate exceeds a preset error rate threshold; if the transmission delay If the preset delay threshold is exceeded, and/or the transmission error rate exceeds the preset error rate threshold, it is determined that the transmission delay and/or the transmission error rate does not satisfy the preset data frame transmission condition. Otherwise, it is determined that the transmission delay and/or the transmission error rate satisfy a preset data frame transmission condition.
The base station according to claim 17, wherein the base station further comprises:

a first processing unit, configured to keep the number of DL regions in the first downlink data frame unchanged and reduce downlink data for transmitting downlink data when the transmission error rate does not meet the preset data frame transmission condition Scheduling the number of DL regions to form a new downlink data frame;

The scheduling DL area is at least one of the DL areas of the first downlink data frame, and the number of the scheduling DL areas is smaller than the number of the DL areas of the first downlink data frame.
The base station according to any one of claims 16 to 20, wherein the base station further comprises:

a second processing unit, configured to: when the new downlink data frame is sent to the terminal, if a transmission delay and/or a transmission error rate of the new downlink data frame meets a preset data frame transmission The condition increases the number of DL regions of the new downlink data frame, and so on, until the number of DL regions of the new downlink data frame reaches a preset DL saturation threshold supported by the data frame transmission condition.
The base station according to claim 17 or 18, wherein said first notification information and said second notification information comprise broadcast information.
The base station according to claim 16, wherein the first downlink data frame includes at least one downlink data subframe, and the downlink data subframe includes the DL region and a feedback A/K region, the A The /K area is used to feed back confirmation information about the first downlink data frame to the base station,

The receiving unit is further configured to receive acknowledgement information about the first downlink data frame that is sent by the terminal to the base station.
A base station according to claim 23, wherein

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back through the A/K region of each downlink data subframe; or

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back by the A/K region of the target downlink data subframe corresponding to the preset number of each downlink data subframe interval; or ,

The acknowledgement information of each downlink data subframe in the first downlink data frame is fed back by the A/K region of the preset target downlink data subframe.
A terminal, wherein the terminal comprises:

a calculating unit, configured to calculate and determine a transmission delay and/or a transmission error rate of the first downlink data frame when receiving the first downlink data frame sent by the base station; where the first downlink is The data frame includes at least one downlink data transmission DL area, and the DL area is used to transmit downlink data;

a reporting unit, configured to report the transmission delay and/or the transmission error rate of the first downlink data frame calculated by the calculating unit to the base station, so that the base station is configured according to the first downlink data frame The transmission delay and/or the transmission error rate are used to adjust the new downlink data frame to be transmitted next time.
The terminal according to claim 25, wherein the terminal further comprises:

a receiving unit, configured to receive a target downlink data frame sent by the base station, and parse the corresponding target notification information;

The DL area of the target downlink data frame is used to transmit corresponding target notification information, where the target notification information is used to notify the terminal to change the number of DL areas of the first downlink data frame to form a new one. Downstream data frame.
The terminal of claim 26, wherein

The receiving unit is configured to: when the target downlink data frame includes the second downlink data frame, parse the second downlink data frame to obtain corresponding first notification information;

The DL area of the second downlink data frame is used to transmit the first notification information, where the first notification information is used to notify the terminal to increase the DL area of the first downlink data frame in a preset cascading manner. The number of new data frames to form.
The terminal of claim 26, wherein

The receiving unit is configured to: when the target downlink data frame includes a third downlink data frame, parse the third downlink data frame to obtain corresponding second notification information;

The DL area of the third downlink data frame is used to transmit second notification information, where the second The notification information is used to notify the terminal to reduce the number of DL regions of the first downlink data frame to form a new downlink data frame.
The terminal according to claim 27 or 28, wherein the first notification information and the second notification information comprise broadcast information.
The terminal according to claim 26, wherein the first downlink data frame includes at least one downlink data subframe, and the downlink data subframe includes the DL region and a feedback A/K region, the A The /K area is used to feed back confirmation information about the first downlink data frame to the base station, where the terminal further includes:

a feedback unit, configured to feed back, by using the A/K area of each downlink data subframe, the acknowledgement information of each downlink data subframe to the base station; or

a feedback unit, configured to: pass the acknowledgement information of each downlink data subframe in the first downlink data frame by a preset amount of the target downlink data subframe corresponding to each of the downlink data subframes The K area is fed back to the base station; or,

The feedback unit is configured to feed back the acknowledgement information of each downlink data subframe in the first downlink data frame to the base station by using an A/K region of the preset target downlink data subframe.