CN110324809B

CN110324809B - Asynchronous uplink transmission method, terminal and network equipment

Info

Publication number: CN110324809B
Application number: CN201810297586.0A
Authority: CN
Inventors: 孙鹏; 刘思綦
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2021-11-23
Anticipated expiration: 2038-03-30
Also published as: CN110324809A; CN114189839A

Abstract

The invention discloses an asynchronous uplink transmission method, a terminal and network equipment, wherein the method comprises the following steps: according to a preset data structure, constructing uplink data to be transmitted; and sending the uplink data to the network equipment. Wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval. According to the embodiment of the invention, by constructing the uplink data of the preset data structure, when the terminal transmits the small data packet in the idle state or the inactive state, the asynchronous uplink transmission is directly carried out through the preset data structure, so that the power consumption and the signaling overhead can be saved, and the configuration complexity of network equipment and the complexity of the terminal can be reduced by adopting the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

Description

Asynchronous uplink transmission method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an asynchronous uplink transmission method, a terminal, and a network device.

Background

Compared with the conventional mobile communication system, a fifth Generation (5Generation, 5G) mobile communication system, or referred to as a New Radio (NR) system, needs to adapt to more diversified scenarios and service requirements. The main scenes of NR include enhanced Mobile Broadband (eMBB) communication, massive Machine Type Communications (mtc), Ultra-Reliable and Low Latency Communications (URLLC), which provide requirements for the system such as high reliability, Low Latency, large bandwidth, and wide coverage.

In an mtc or eMBB scenario, the terminal needs to support low power consumption operation. In a conventional uplink transmission mode, if a terminal needs to send uplink data, uplink Timing synchronization is first acquired through a random access process, that is, uplink Timing Advance (TA) information is acquired from a network device. After uplink synchronization is achieved, the terminal can transmit uplink data through dynamic scheduling or semi-static scheduling.

When the uplink data packet is small, the consumption of resources and electric quantity is caused by a mode of sending the uplink data after uplink synchronization is obtained through a random access process, so that a mode of sending the uplink data in an asynchronous state by the terminal is introduced in an mMTC or eMBB power saving scene. For terminals in MTC and eMBB scenarios, uplink transmission needs to be initiated in an idle or inactive state to save power consumption and signaling overhead. However, if there is no reasonable control, the asynchronous uplink transmission will cause high complexity of network device configuration and terminal implementation, and cause interference between data. For other communication scenarios, similar problems exist if uplink transmission in an idle state or an inactive state is required.

Disclosure of Invention

The embodiment of the invention provides an asynchronous uplink transmission method, a terminal and network equipment, and aims to solve the problems of high configuration complexity and terminal implementation complexity of asynchronous uplink transmission network equipment and interference among data.

In a first aspect, an embodiment of the present invention provides an asynchronous uplink transmission method, applied to a terminal side, including:

according to a preset data structure, constructing uplink data to be transmitted; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval;

and sending the uplink data to the network equipment.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

the building module is used for building uplink data to be transmitted according to a preset data structure; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval;

and the sending module is used for sending the uplink data to the network equipment.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and capable of being executed on the processor, and when the computer program is executed by the processor, the steps of the asynchronous uplink transmission method are implemented.

In a fourth aspect, an embodiment of the present invention provides a method for asynchronous uplink transmission, which is applied to a network device side, and is characterized in that the method includes:

receiving uplink data meeting a preset data structure from a terminal side; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval.

In a fifth aspect, an embodiment of the present invention provides a network device, including:

the receiving module is used for receiving uplink data meeting a preset data structure from a terminal side; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval.

In a sixth aspect, an embodiment of the present invention further provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps of the foregoing asynchronous uplink transmission method are implemented.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the asynchronous uplink transmission method are implemented.

Therefore, the terminal of the embodiment of the invention can directly perform asynchronous uplink transmission through the preset data structure by constructing the uplink data of the preset data structure when the terminal transmits a small data packet in an idle state or an inactive state, so that the power consumption and signaling overhead can be saved, and the configuration complexity of network equipment and the complexity of the terminal can be reduced by adopting the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a flowchart illustrating an asynchronous uplink transmission method at a terminal side according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a data structure of a default data structure according to an embodiment of the invention;

fig. 3 is a diagram illustrating a data structure of a random access preamble for initial access;

fig. 4 is a schematic block diagram of a terminal according to an embodiment of the present invention;

FIG. 5 shows a block diagram of a terminal of an embodiment of the invention;

fig. 6 is a flowchart illustrating an asynchronous uplink transmission method of a network device according to an embodiment of the present invention;

FIG. 7 is a block diagram of a network device according to an embodiment of the present invention;

fig. 8 shows a block diagram of a network device of an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

An embodiment of the present invention provides an asynchronous uplink transmission method, which is applied to a terminal side, and as shown in fig. 1, the method includes the following steps:

step 11: and constructing uplink data to be transmitted according to a preset data structure.

The preset data structure comprises: a preamble Cyclic Prefix (CP), a preamble, at least one data part consisting of a data Cyclic Prefix (data CP) and data, and a guard interval. Specifically, the preset data structure sequentially includes: a preamble CP, a preamble following the preamble CP, at least one data part following the preamble, and a guard interval at the last. The number of the data parts in the preset data structure can be determined according to the size of the data packet to be transmitted, and each data in at least one data part in the preset data structure corresponds to one data CP in front. Assuming that the preset data structure includes n data parts, as shown in fig. 2, a preamble is followed by data CP1, data 1.

The preamble CP and the preamble in the preset data structure are used for the network equipment to identify the asynchronous uplink transmission terminal, so that the complexity of network equipment configuration and the complexity of terminal implementation in the asynchronous uplink transmission scene are reduced. The preamble may be allocated to the terminal by the network device, and the preambles allocated to different terminals by the network device are different, and the preamble used for the asynchronous uplink transmission may be the same as the preamble used by the non-contention random access or may be different from the preamble used by the non-contention random access.

At least one data part in the preset data structure is used for carrying control information and data information to be transmitted, and the set number of the data parts is related to the quantity of the control information and the data information to be transmitted.

The guard interval in the preset data structure is used for distinguishing uplink data of different terminals so as to avoid interference between the uplink data of different terminals.

Step 12: and sending the uplink data to the network equipment.

When the terminal has small data to be transmitted to the network equipment in an idle state or an inactive state, the terminal can construct uplink data with a preset data structure for saving power consumption and send the uplink data to the network equipment so as to realize asynchronous uplink transmission of the terminal without acquiring TA from the network equipment side, thereby saving signaling overhead.

In order to reduce the configuration complexity of the network device, constraint relations among the time length of the preamble cyclic prefix, the time length of the preamble and the time length of the guard interval in the data structure are preset, and the time length constraint relations of all parts in the random access preamble defined by initial access are met. Specifically, in the preset data structure, the preamble cyclic prefix, the preamble and the guard interval are respectively the same as the cyclic prefix, the preamble sequence and the guard interval of the first random access preamble, that is, the time length of the preamble cyclic prefix in the preset data structure is the same as the time length of the cyclic prefix of the first random access preamble, the time length of the preamble in the preset data structure is the same as the time length of the preamble sequence of the first random access preamble, and the time length of the guard interval in the preset data structure is the same as the time length of the guard interval of the first random access preamble. The first random access preamble is a random access preamble of a first format for initial access.

In addition, in order to further reduce the configuration complexity of the network device, the overall duration length from the preamble cyclic prefix to the guard interval, including data transmission, in the preset data structure is limited to a fixed set, where the fixed set is a set of time domain transmission symbol numbers occupied by the random preamble for initial access. Specifically, the total time length of the preset data structure is the same as the total time length of the second random access preamble; the second random access preamble is a random access preamble of a second format for initial access, and the total time length of the second random access preamble is greater than that of the first random access preamble. As shown in fig. 3, the first random access preamble and the second random access preamble each include: a cyclic prefix, a preamble sequence, and a guard interval.

Specifically, the total time length of the preset data structure is N time domain transmission symbols (or referred to as ODFM symbols), where N is one element value in a preset set, and the element values in the preset set include: 2. 4, 6, 12, 14, 28, 42, and 56. Wherein, the preset set is the same as the symbol length used for normal uplink access: {2 OFDM symbols, 4 OFDM symbols, 6 OFDM symbols, 12 OFDM symbols, 14 OFDM symbols, 28 OFDM symbols, 42 OFDM symbols }. Alternatively, the predetermined set may only contain the longer number of symbols in the set, such as {6 OFDM symbols, 12 OFDM symbols, 14 OFDM symbols, 28 OFDM symbols, 42 OFDM symbols }. Alternatively, a few options, such as 56 OFDM symbols, are added to the two sets.

Preferably, when the data portions are at least two, the at least two data portions comprise at least two data packets, wherein independent channel coding is adopted between the at least two data packets. That is, the data portion may be divided into 2 or more data packets for transmission, and independent channel coding is used between each data packet.

The first k data packets in the at least two data packets are used for transmitting control information or data information, the other data packets in the at least two data packets are used for transmitting data information, and k is an integer greater than or equal to 1. Assuming that n data portions are divided into two data packets, k is 1, where data portion 1 to data portion m are first data packets used for transmitting control information or other data information; the data portions m +1 to n are second data packets (i.e., other data packets) that are used only for transmitting data information. It is to be noted that the embodiment of the present invention is only described by taking the division into two groups of data packets as an example, and the embodiment of the present invention is similar to the above embodiments, and therefore, the description thereof is omitted here.

It is worth noting that, among other things, the time length of the data cyclic prefix may be different for different data packets. Specifically, the time length of the data cyclic prefixes of the first k data packets is greater than the time length of the data cyclic prefixes of the other data packets. That is, the time length of the data cyclic prefix of each data portion in the first data packet is longer than the time length of the data cyclic prefix of each data portion in the second data packet.

The determination of the time length of the preamble cyclic prefix is described above, and the present embodiment further describes the determination of the length of the data cyclic prefix in the predetermined data structure. The length of the data cyclic prefix is determined according to preset parameters, wherein the preset parameters include: at least one of the length of the preamble cyclic prefix, the time length of the guard interval, the sequence zero correlation configuration parameter, and the length of the cyclic prefix in the synchronous uplink transmission. For example, the length of the data cyclic prefix may be the length of the preamble cyclic prefix, or the length of the data cyclic prefix may be the length Ncs determined by a sequence zero correlation configuration (zeroCorrelationConfig) parameter for initial access, or the length of the data cyclic prefix may be the time length of a guard interval, or the minimum of the lengths determined by any combination of the above three parameters, or the length of the data cyclic prefix is the length of the cyclic prefix used in synchronous uplink transmission. The length of the cyclic prefix used in the synchronous uplink transmission comprises a normal cyclic prefix and an extended cyclic prefix.

Alternatively, the time length of the data cyclic prefix is predefined.

Here, taking the length Ncs of the data cyclic prefix determined by the sequence zero correlation configuration (zeroCorrelationConfig) parameter for initial access as an example, when the subcarrier spacing is 5KHz, the values of Ncs of preambles with different formats are shown in table 1:

TABLE 1

In a preferred embodiment, the step 12 may further include, before the step of: determining the transmission position of uplink data; the transmission positions include at least one of time domain transmission positions and frequency domain transmission positions.

Taking a time domain transmission position as an example, the step of determining the transmission position of the uplink data includes: one of at least one possible time domain start position of the random preamble for initial access is determined as a time domain start position of the uplink data. That is, the start time position of the above-mentioned preset data structure contains a possible time domain start position of preamble transmission for initial access. For example, the time domain starting position of the uplink data includes possible time domain starting positions that may include part of the preamble transmission initially accessed, such as the first several of a continuous section of possible time domain starting positions, so that the terminal selects one of the part of possible time domain starting positions as the time domain starting position of the uplink data. Or, the time domain starting position of the uplink data includes possible time domain starting positions that may include all preamble transmissions that are initially accessed, so that the terminal selects one of all possible time domain starting positions as the time domain starting position of the uplink data.

Preferably, the terminal may select the Preamble in the preset data structure according to a constraint relationship between a transmission time (e.g., a time domain starting position) of the initial access and a random access Preamble sequence format (Preamble format). That is to say, the time domain starting position of the uplink data and the format of the preamble satisfy a preset corresponding relationship, where the preset corresponding relationship is: the association relationship between the possible time domain starting position of the random access preamble code and the preamble sequence format at the time of initial access.

Taking the frequency domain transmission position as an example, the step of determining the transmission position of the uplink data comprises the following steps: and determining the frequency domain transmission position of the uplink data according to the frequency domain position of the lead code. Wherein the frequency domain position of the preamble comprises: at least a portion of a frequency domain transmission location of a random preamble for initial access. That is, the frequency domain position of the uplink data transmission is determined by the frequency domain position of the preamble part in the preset data structure. For example, the frequency domain locations configured for preamble and data portion transmission include at least the frequency domain location used for initial access.

Or, according to the predefined frequency domain transmission position, determining the frequency domain transmission position of the uplink data, that is, the frequency domain transmission position of the uplink data is predefined.

The above describes how to determine the transmission position of the uplink data transmission, and the following further describes how to determine the transmission bandwidth of the uplink data. Specifically, step 12 is preceded by: and determining the transmission bandwidth of the uplink data. The transmission bandwidth is determined by the terminal according to the bandwidth occupied by the lead code, or the transmission bandwidth is predefined. That is, the transmission bandwidth of the uplink data may be determined by the bandwidth corresponding to the preamble portion, or may be determined in a preconfigured manner. For example, the transmission bandwidth of the uplink data is the same as the bandwidth corresponding to the preamble portion.

Preferably, step 12 comprises: and sending uplink data to the network equipment by adopting a preset subcarrier interval. The preset subcarrier interval is determined by the terminal according to the subcarrier interval of the preamble, or the preset subcarrier interval is predefined. That is, the subcarrier interval used for uplink data transmission may be determined by the subcarrier interval corresponding to the preamble, or may be determined in a preconfigured manner.

Taking a preset subcarrier interval as an example, the determining, by the terminal, the subcarrier interval of the preamble, and the determining, by the terminal, the preset subcarrier interval according to the subcarrier interval of the preamble may include:

when the subcarrier interval of the preamble is greater than or equal to a first preset subcarrier interval, the preset subcarrier interval is the same as the subcarrier interval of the preamble. Taking the first preset subcarrier spacing of 15KHz as an example, when the first format is used for transmission, the subcarrier spacing of the preamble is greater than or equal to 15KHz, where the first format is any one of a format set { format a1, format a2, format a3, format b1, format b2, format b3, format b4, format c0, and format c2 }. At this time, the subcarrier interval used for uplink data transmission is the same as the preamble subcarrier interval.

When the subcarrier interval of the preamble is smaller than a first preset subcarrier interval, the preset subcarrier interval is different from the subcarrier interval of the preamble. Taking the first preset subcarrier spacing as 15KHz as an example, when a second Format is used for transmission, the subcarrier spacing of the preamble is less than 15KHz, where the second Format is any one of the Format sets { Format0, Format1, Format2, and Format3 }. In this case, the subcarrier spacing used for uplink data transmission is different from the preamble subcarrier spacing.

In the asynchronous uplink transmission method of the embodiment of the invention, the terminal constructs the uplink data of the preset data structure, and when the terminal transmits the small data packet in the idle state or the inactive state, the asynchronous uplink transmission can be directly carried out through the preset data structure, so that the power consumption and the signaling overhead can be saved, and the configuration complexity of network equipment and the complexity of the terminal can be reduced by adopting the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

The foregoing embodiments describe the asynchronous uplink transmission method in different scenarios, and the following describes a terminal corresponding to the asynchronous uplink transmission method with reference to the accompanying drawings.

As shown in fig. 4, the terminal 400 according to the embodiment of the present invention can implement the above-mentioned embodiment to construct uplink data to be transmitted according to a preset data structure; sending the details of the uplink data method to the network equipment, and achieving the same effect, wherein the preset data structure comprises: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval. The terminal 400 specifically includes the following functional modules:

a constructing module 410, configured to construct uplink data to be transmitted according to a preset data structure; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval;

a sending module 420, configured to send uplink data to the network device.

The time lengths of the preamble cyclic prefix, the preamble and the guard interval are respectively the same as those of the cyclic prefix, the preamble sequence and the guard interval of the first random access preamble; the first random access lead code is a random access lead code of a first format for initial access;

the total time length of the preset data structure is the same as the total time length of the second random access lead code; the second random access preamble is a random access preamble of a second format for initial access, the total time length of the second random access preamble is greater than the total time length of the first random access preamble, and both the first random access preamble and the second random access preamble include: a cyclic prefix, a preamble sequence, and a guard interval.

Wherein, the total time length of the preset data structure is N time domain transmission symbols, where N is an element value in a preset set, and the element value of the preset set includes: 2. 4, 6, 12, 14, 28, 42, and 56.

When the number of the data parts is at least two, the at least two data parts comprise at least two data packets, wherein independent channel coding is adopted between the at least two data packets.

The first k data packets of the at least two data packets are used for transmitting control information or data information, the other data packets of the at least two data packets are used for transmitting data information, and k is an integer greater than or equal to 1.

And the time length of the data cyclic prefixes of the first k data packets is greater than the time length of the data cyclic prefixes of other data packets.

The length of the data cyclic prefix is determined according to preset parameters, wherein the preset parameters include: at least one of the length of the preamble cyclic prefix, the time length of the guard interval, the sequence zero correlation configuration parameter, and the length of the cyclic prefix in the synchronous uplink transmission, or the time length of the data cyclic prefix is predefined.

Wherein the sending module 420 comprises:

the first sending submodule is used for sending uplink data to the network equipment by adopting a preset subcarrier interval; the preset subcarrier interval is determined by the terminal according to the subcarrier interval of the preamble, or the preset subcarrier interval is predefined.

The terminal determines a preset subcarrier interval according to the subcarrier interval of the preamble, and the method comprises the following steps:

when the subcarrier interval of the preamble is greater than or equal to a first preset subcarrier interval, the preset subcarrier interval is the same as the subcarrier interval of the preamble;

when the subcarrier interval of the preamble is smaller than a first preset subcarrier interval, the preset subcarrier interval is different from the subcarrier interval of the preamble.

Wherein, the terminal 400 further comprises:

the first determining module is used for determining the transmission position of the uplink data; the transmission positions include at least one of time domain transmission positions and frequency domain transmission positions.

Wherein the first determining module comprises:

a first determining submodule, configured to determine one of at least one possible time domain starting position of the random preamble for initial access as a time domain starting position of the uplink data.

The time domain starting position of the uplink data and the format of the lead code meet a preset corresponding relationship, and the preset corresponding relationship is as follows: the association relationship between the possible time domain starting position of the random access preamble code and the preamble sequence format at the time of initial access.

Wherein the first determining module further comprises:

the second determining submodule is used for determining the frequency domain transmission position of the uplink data according to the frequency domain position of the lead code; wherein the frequency domain position of the preamble comprises: at least a portion of a frequency domain transmission location of a random preamble for initial access.

And the frequency domain transmission position of the uplink data is predefined.

Wherein, the terminal 400 further comprises:

the second determining module is used for determining the transmission bandwidth of the uplink data; the transmission bandwidth is determined by the terminal according to the bandwidth occupied by the lead code, or the transmission bandwidth is predefined.

It is worth pointing out that, according to the terminal in the embodiment of the present invention, by constructing the uplink data of the preset data structure, when the terminal transmits a small data packet in an idle state or an inactive state, asynchronous uplink transmission can be directly performed through the preset data structure, so that power consumption and signaling overhead can be saved, and the configuration complexity of the network device and the complexity of the terminal can be reduced by using the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

To better achieve the above object, further, fig. 5 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 50 includes, but is not limited to: a radio frequency unit 51, a network module 52, an audio output unit 53, an input unit 54, a sensor 55, a display unit 56, a user input unit 57, an interface unit 58, a memory 59, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the terminal configuration shown in fig. 5 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 510 is configured to construct uplink data to be transmitted according to a preset data structure; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval.

The radio frequency unit 51 is configured to send uplink data to the network device.

According to the terminal provided by the embodiment of the invention, by constructing the uplink data of the preset data structure, when the terminal transmits the small data packet in the idle state or the fee activated state, the asynchronous uplink transmission can be directly carried out through the preset data structure, so that the power consumption and the signaling overhead can be saved, and the configuration complexity of network equipment and the complexity of the terminal can be reduced by adopting the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 51 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. Typically, the radio frequency unit 51 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 51 may also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 52, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 53 may convert audio data received by the radio frequency unit 51 or the network module 52 or stored in the memory 59 into an audio signal and output as sound. Also, the audio output unit 53 may also provide audio output related to a specific function performed by the terminal 50 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 53 includes a speaker, a buzzer, a receiver, and the like.

The input unit 54 is used to receive audio or video signals. The input Unit 54 may include a Graphics Processing Unit (GPU) 541 and a microphone 542, and the Graphics processor 541 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 56. The image frames processed by the graphic processor 541 may be stored in the memory 59 (or other storage medium) or transmitted via the radio frequency unit 51 or the network module 52. The microphone 542 may receive sound, and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 51 in case of the phone call mode.

The terminal 50 also includes at least one sensor 55, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 561 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 561 and/or the backlight when the terminal 50 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 55 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.

The display unit 56 is used to display information input by the user or information provided to the user. The Display unit 56 may include a Display panel 561, and the Display panel 561 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 57 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 57 includes a touch panel 571 and other input devices 572. The touch panel 571, also referred to as a touch screen, can collect touch operations by a user (e.g., operations by a user on the touch panel 571 or near the touch panel 571 using a finger, a stylus, or any suitable object or attachment). The touch panel 571 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 571 can be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 57 may include other input devices 572 in addition to the touch panel 571. In particular, the other input devices 572 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 571 can be overlaid on the display panel 561, and when the touch panel 571 detects a touch operation on or near the touch panel 571, the touch panel is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 561 according to the type of the touch event. Although the touch panel 571 and the display panel 561 are shown in fig. 5 as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 571 and the display panel 561 may be integrated to implement the input and output functions of the terminal, and the implementation is not limited herein.

The interface unit 58 is an interface for connecting an external device to the terminal 50. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 58 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 50 or may be used to transmit data between the terminal 50 and an external device.

The memory 59 may be used to store software programs as well as various data. The memory 59 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 59 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 510 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 59 and calling data stored in the memory 59, thereby performing overall monitoring of the terminal. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.

The terminal 50 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the terminal 50 includes some functional modules that are not shown, and will not be described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 510, a memory 59, and a computer program stored in the memory 59 and capable of running on the processor 510, where the computer program, when executed by the processor 510, implements each process of the foregoing asynchronous uplink transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the asynchronous uplink transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The foregoing embodiment describes the asynchronous uplink transmission method of the present invention from the terminal side, and the following embodiment further describes the asynchronous uplink transmission method of the network device side with reference to the accompanying drawings.

As shown in fig. 6, the asynchronous uplink transmission method according to the embodiment of the present invention is applied to a network device, and includes the following steps:

step 61: and receiving uplink data meeting the preset data structure from the terminal side.

Wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval. Specifically, the preset data structure sequentially includes: a preamble CP, a preamble following the preamble CP, at least one data part following the preamble, and a guard interval at the last. The preamble CP and the preamble in the preset data structure are used for the network equipment to identify the asynchronous uplink transmission terminal, so that the complexity of network equipment configuration and the complexity of terminal implementation in the asynchronous uplink transmission scene are reduced. At least one data part in the preset data structure is used for carrying control information and data information to be transmitted. The guard interval in the preset data structure is used for distinguishing uplink data of different terminals so as to avoid interference between the uplink data of different terminals.

In order to reduce the configuration complexity of the network device, constraint relations among the time length of the preamble cyclic prefix, the time length of the preamble and the time length of the guard interval in the data structure are preset, and the time length constraint relations of all parts in the random access preamble defined by initial access are met. Specifically, the preamble cyclic prefix, the preamble and the guard interval are respectively the same as the cyclic prefix, the preamble sequence and the guard interval of the first random access preamble in time length; wherein the first random access preamble is a random access preamble of a first format for initial access. In addition, in order to further reduce the configuration complexity of the network device, the total time length of the preset data structure is the same as the total time length of the second random access preamble; the second random access preamble is a random access preamble of a second format for initial access, the total time length of the second random access preamble is greater than the total time length of the first random access preamble, and both the first random access preamble and the second random access preamble include: a cyclic prefix, a preamble sequence, and a guard interval.

Wherein, the total time length of the preset data structure is N time domain transmission symbols, where N is an element value in a preset set, and the element value of the preset set includes: 2. 4, 6, 12, 14, 28, 42, and 56. Wherein, the preset set is the same as the symbol length used for normal uplink access: {2 OFDM symbols, 4 OFDM symbols, 6 OFDM symbols, 12 OFDM symbols, 14 OFDM symbols, 28 OFDM symbols, 42 OFDM symbols }. Alternatively, the predetermined set may only contain the longer number of symbols in the set, such as {6 OFDM symbols, 12 OFDM symbols, 14 OFDM symbols, 28 OFDM symbols, 42 OFDM symbols }. Alternatively, a few options, such as 56 OFDM symbols, are added to the two sets.

The data part can be divided into 2 or more data packets for transmission, and independent channel coding is adopted between each data packet. Specifically, when the data portions are at least two, the at least two data portions include at least two data packets, wherein independent channel coding is adopted between the at least two data packets.

The first k data packets of the at least two data packets are used for transmitting control information or data information, the other data packets of the at least two data packets are used for transmitting data information, and k is an integer greater than or equal to 1. It is assumed that n data parts are divided into two data packets, wherein data part 1 to data part k are first data packets used for transmitting control information or other data information; the data portions k +1 to n are second data packets (i.e., other data packets) that are used only for transmitting data information.

And the time length of the data cyclic prefixes of the first k data packets is greater than the time length of the data cyclic prefixes of other data packets. I.e., the length of time of the data cyclic prefix used for transmitting the data portion of the data packet of the control information or the data information is greater than the length of time of the data cyclic prefix used for transmitting only the data portion of the data packet of the data information.

The length of the data cyclic prefix is determined according to preset parameters, wherein the preset parameters include: at least one of the length of the preamble cyclic prefix, the time length of the guard interval, the sequence zero correlation configuration parameter, and the length of the cyclic prefix in the synchronous uplink transmission, or the time length of the data cyclic prefix is predefined. For example, the length of the data cyclic prefix may be the length of the preamble cyclic prefix, or the length of the data cyclic prefix may be the length Ncs determined by a sequence zero correlation configuration (zeroCorrelationConfig) parameter for initial access, or the length of the data cyclic prefix may be the time length of a guard interval, or the minimum of the lengths determined by any combination of the above three parameters, or the length of the data cyclic prefix is the length of the cyclic prefix used in synchronous uplink transmission. The length of the cyclic prefix used in the synchronous uplink transmission comprises a normal cyclic prefix and an extended cyclic prefix.

In a preferred embodiment, step 61 comprises: receiving uplink data sent by a terminal at intervals of preset subcarriers; wherein the preset subcarrier interval is determined according to the subcarrier interval of the preamble, or the preset subcarrier interval is predefined. When the preset subcarrier interval is determined according to the subcarrier interval of the preamble, the method specifically includes: when the subcarrier interval of the preamble is greater than or equal to a first preset subcarrier interval, the preset subcarrier interval is the same as the subcarrier interval of the preamble; when the subcarrier interval of the preamble is smaller than a first preset subcarrier interval, the preset subcarrier interval is different from the subcarrier interval of the preamble. Taking the first preset subcarrier spacing of 15KHz as an example, when the first format is used for transmission, the subcarrier spacing of the preamble is greater than or equal to 15KHz, where the first format is any one of a format set { format a1, format a2, format a3, format b1, format b2, format b3, format b4, format c0, and format c2 }. At this time, the subcarrier interval used for uplink data transmission is the same as the preamble subcarrier interval. When transmitted using a second Format, the subcarrier spacing of the preamble is less than 15KHz, wherein the second Format is any one of the Format sets { Format0, Format1, Format2, Format3 }. In this case, the subcarrier spacing used for uplink data transmission is different from the preamble subcarrier spacing.

The time domain initial position of the uplink data is as follows: one of at least one possible time domain start position of a random preamble for initial access. That is, the start time position of the above-mentioned preset data structure contains a possible time domain start position of preamble transmission for initial access. For example, the time domain starting position of the uplink data includes possible time domain starting positions that may include part of the preamble transmission initially accessed, such as the first several of a continuous section of possible time domain starting positions, so that the terminal selects one of the part of possible time domain starting positions as the time domain starting position of the uplink data. Or, the time domain starting position of the uplink data includes possible time domain starting positions that may include all preamble transmissions that are initially accessed, so that the terminal selects one of all possible time domain starting positions as the time domain starting position of the uplink data.

The terminal may select a Preamble in a preset data structure according to a constraint relationship between a transmission time (e.g., a time domain starting position) of initial access and a random access Preamble sequence format (Preamble format). That is, the time domain starting position of the uplink data and the format of the preamble satisfy a preset corresponding relationship, where the preset corresponding relationship is: the association relationship between the possible time domain starting position of the random access preamble code and the preamble sequence format at the time of initial access.

The frequency domain transmission position of the uplink data is determined according to the frequency domain position of the lead code; wherein the frequency domain position of the preamble comprises: at least a portion of a frequency domain transmission location of a random preamble for initial access. That is, the frequency domain position of the uplink data transmission is determined by the frequency domain position of the preamble part in the preset data structure. For example, the frequency domain locations configured for preamble and data portion transmission include at least the frequency domain location used for initial access.

Or, the frequency domain transmission position of the uplink data is predefined.

The transmission bandwidth of the uplink data is determined according to the bandwidth occupied by the preamble, or the transmission bandwidth is predefined. That is, the transmission bandwidth of the uplink data may be determined by the bandwidth corresponding to the preamble portion, or may be determined in a preconfigured manner. For example, the transmission bandwidth of the uplink data is the same as the bandwidth corresponding to the preamble portion.

In the asynchronous uplink transmission method of the embodiment of the invention, when the network equipment receiving terminal transmits the small data packet in the idle state or the inactive state, the uplink data meeting the preset data structure is sent, so that the power consumption and the signaling overhead can be saved, and the configuration complexity of the network equipment and the complexity of the terminal can be reduced by adopting the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

The foregoing embodiments respectively describe in detail the asynchronous uplink transmission method in different scenarios, and the following embodiments further describe the corresponding network device with reference to the accompanying drawings.

As shown in fig. 7, the network device 700 according to the embodiment of the present invention can implement details of an uplink data method that meets a preset data structure received from a terminal side in the foregoing embodiment, and achieve the same effect, where the preset data structure includes: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval. The network device 700 specifically includes the following functional modules:

a receiving module 710, configured to receive uplink data meeting a preset data structure from a terminal side; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval.

Wherein, the receiving module 720 includes:

the first receiving submodule is used for receiving uplink data sent by a terminal at preset subcarrier intervals; wherein the preset subcarrier interval is determined according to the subcarrier interval of the preamble, or the preset subcarrier interval is predefined.

Wherein the preset subcarrier interval is determined according to the subcarrier interval of the preamble, specifically:

The time domain initial position of the uplink data is as follows: one of at least one possible time domain start position of a random preamble for initial access.

The frequency domain transmission position of the uplink data is determined according to the frequency domain position of the lead code; wherein the frequency domain position of the preamble comprises: at least a portion of a frequency domain transmission location of a random preamble for initial access.

The transmission bandwidth of the uplink data is determined according to the bandwidth occupied by the preamble, or the transmission bandwidth is predefined.

It is worth pointing out that, in the network device according to the embodiment of the present invention, when the receiving terminal transmits the small data packet in the idle state or the inactive state, the uplink data satisfying the preset data structure is sent, so that power consumption and signaling overhead can be saved, and the configuration complexity of the network device and the complexity of the terminal can be reduced by using the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps in the asynchronous uplink transmission method as described above are implemented. An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the asynchronous uplink transmission method described above are implemented.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 8, the network device 800 includes: antenna 81, radio frequency device 82, baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the rf device 82 receives information via the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted and transmits the information to the rf device 82, and the rf device 82 processes the received information and transmits the processed information through the antenna 81.

The above-mentioned band processing means may be located in the baseband means 83, and the method performed by the network device in the above embodiment may be implemented in the baseband means 83, where the baseband means 83 includes a processor 84 and a memory 85.

The baseband device 83 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, wherein one chip, for example, the processor 84, is connected to the memory 85 to call up the program in the memory 85 to perform the network device operation shown in the above method embodiment.

The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, such as a Common Public Radio Interface (CPRI).

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 85 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synchlronous DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 85 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored in the memory 85 and operable on the processor 84, the processor 84 calling the computer program in the memory 85 to execute the method performed by each module shown in fig. 7.

In particular, the computer program when invoked by the processor 84 is operable to perform: receiving uplink data meeting a preset data structure from a terminal side; wherein, predetermine the data structure and include: a preamble cyclic prefix, a preamble, at least one data portion consisting of a data cyclic prefix and data, and a guard interval.

In particular, the computer program when invoked by the processor 84 is operable to perform: receiving uplink data sent by a terminal at intervals of preset subcarriers; wherein the preset subcarrier interval is determined according to the subcarrier interval of the preamble, or the preset subcarrier interval is predefined.

The network device may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

According to the network equipment in the embodiment of the invention, the uplink data meeting the preset data structure is sent when the receiving terminal transmits the small data packet in the idle state or the inactive state, so that the power consumption and the signaling overhead can be saved, and the configuration complexity of the network equipment and the complexity of the terminal can be reduced by adopting the uplink data of the preset data structure. In addition, the interference between data can be eliminated through the guard interval between different uplink data.

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

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

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

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

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

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

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An asynchronous uplink transmission method applied to a terminal side, comprising:

according to a preset data structure, constructing uplink data to be transmitted; wherein the preset data structure comprises: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval; wherein at least one data portion is located after the preamble;

and sending the uplink data to network equipment.

2. The method according to claim 1, wherein the preamble cyclic prefix, the preamble and the guard interval are respectively the same as the cyclic prefix, the preamble sequence and the guard interval of the first random access preamble in time length; the first random access preamble is a random access preamble of a first format for initial access;

the total time length of the preset data structure is the same as the total time length of the second random access lead code; wherein the second random access preamble is a random access preamble of a second format for initial access, a total time length of the second random access preamble is greater than a total time length of the first random access preamble, and the first random access preamble and the second random access preamble both include: a cyclic prefix, a preamble sequence, and a guard interval.

3. The method according to claim 1, wherein the total duration of the predetermined data structure is N time domain transmission symbols, where N is one element value in a predetermined set, and the element values in the predetermined set include: 2. 4, 6, 12, 14, 28, 42, and 56.

4. The method according to claim 1, wherein when said data portion is at least two, the at least two data portions comprise at least two data packets, and wherein said at least two data packets are encoded using independent channels.

5. The method according to claim 4, wherein k first data packets of the at least two data packets are used for transmitting control information or data information, and the other data packets of the at least two data packets are used for transmitting data information, and k is an integer greater than or equal to 1.

6. The method according to claim 5, wherein the time length of the data cyclic prefix of the first k data packets is longer than the time length of the data cyclic prefix of the other data packets.

7. The method according to claim 1, wherein the length of the data cyclic prefix is determined according to the preset parameters, wherein the preset parameters include: at least one of a length of a preamble cyclic prefix, a time length of a guard interval, a sequence zero correlation configuration parameter, and a length of a cyclic prefix in a synchronous uplink transmission, or the time length of the data cyclic prefix is predefined.

8. The method of claim 1, wherein the step of sending the upstream data to a network device comprises:

sending the uplink data to the network equipment by adopting a preset subcarrier interval; the preset subcarrier interval is determined by the terminal according to the subcarrier interval of the preamble, or the preset subcarrier interval is predefined.

9. The method of claim 8, wherein the determining, by the terminal, the preset subcarrier spacing according to the subcarrier spacing of the preamble comprises:

when the subcarrier interval of the lead code is greater than or equal to a first preset subcarrier interval, the preset subcarrier interval is the same as the subcarrier interval of the lead code;

when the subcarrier interval of the preamble is smaller than the first preset subcarrier interval, the preset subcarrier interval is different from the subcarrier interval of the preamble.

10. The method of claim 1, wherein the step of sending the upstream data to the network device is preceded by the step of:

determining the transmission position of the uplink data; the transmission positions include at least one of time domain transmission positions and frequency domain transmission positions.

11. The method according to claim 10, wherein said step of determining the transmission location of the uplink data comprises:

and determining one of at least one possible time domain starting position of the random preamble used for initial access as the time domain starting position of the uplink data.

12. The method of claim 11, wherein the time domain start position of the uplink data and the format of the preamble satisfy a predetermined correspondence, and the predetermined correspondence is: the association relationship between the possible time domain starting position of the random access preamble code and the preamble sequence format at the time of initial access.

13. The method according to claim 10, wherein said step of determining the transmission location of the uplink data comprises:

determining the frequency domain transmission position of the uplink data according to the frequency domain position of the lead code; wherein the frequency domain location of the preamble comprises: at least a portion of a frequency domain transmission location of a random preamble for initial access.

14. The method according to claim 10, wherein the location of the uplink data in the frequency domain is predefined.

15. The method of claim 1, wherein the step of sending the upstream data to the network device is preceded by the step of:

determining the transmission bandwidth of the uplink data; the transmission bandwidth is determined by the terminal according to the bandwidth occupied by the lead code, or the transmission bandwidth is predefined.

16. A terminal, comprising:

the building module is used for building uplink data to be transmitted according to a preset data structure; wherein the preset data structure comprises: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval; wherein at least one data portion is located after the preamble;

and the sending module is used for sending the uplink data to network equipment.

17. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for asynchronous uplink transmission according to any of claims 1 to 15.

18. A non-synchronous uplink transmission method is applied to a network device side, and is characterized by comprising the following steps:

receiving uplink data meeting a preset data structure from a terminal side; wherein the preset data structure comprises: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval; wherein at least one data portion is located after the preamble.

19. A network device, comprising:

the receiving module is used for receiving uplink data meeting a preset data structure from a terminal side; wherein the preset data structure comprises: a preamble cyclic prefix, a preamble, at least one data portion composed of a data cyclic prefix and data, and a guard interval; wherein at least one data portion is located after the preamble.

20. A network device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of asynchronous uplink transmission according to claim 18 when executing the computer program.

21. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for asynchronous uplink transmission according to any one of claims 1 to 15 or 18.