CN113412638A

CN113412638A - Data transmission method, device, communication equipment and storage medium

Info

Publication number: CN113412638A
Application number: CN202080000136.6A
Authority: CN
Inventors: 李媛媛
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2021-09-17
Anticipated expiration: 2040-01-17
Also published as: CN113412638B; WO2021142795A1

Abstract

The embodiment of the disclosure provides a data transmission method, which is applied to communication equipment, wherein the method comprises the following steps: determining N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same; and performing CCA according to the FBE parameters. The embodiment of the disclosure also provides a data transmission device, communication equipment and a storage medium. The communication equipment can be configured with a plurality of FBE parameters, when the communication equipment fails to perform CCA based on the current detection time of one FBE parameter, the communication equipment can perform CCA based on the detection time of another FBE parameter, and the CCA does not need to be performed until the next detection time corresponding to the FBE parameter arrives; the waiting time of the next CCA can be greatly shortened, and the waiting time of data transmission is further greatly reduced.

Description

Data transmission method, device, communication equipment and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for data transmission, a communication device, and a storage medium.

Background

A transmitting end, such as a Base Station (SB) or a User Equipment (UE), needs to monitor a channel before transmitting data based on an unlicensed frequency band; if the interference in the channel is lower than a certain threshold value, the channel may be successfully occupied to transmit data. That is, the transmitting end needs to use a listening mechanism, for example, a Listen Before Talk (LBT) mechanism, when transmitting data based on the unlicensed frequency band. Among them, in LBT, there is a Frame Based Equipment (FBE) approach. In the FBE mode, the CCA (Clear channel assessment) needs only to monitor the duration of one slot. If the interference of the channel monitored by the transmitting terminal is lower than a certain threshold value in the time slot, the channel is considered to be idle, and the transmitting terminal can occupy the channel after the channel detection is finished. At present, a transmitting end occupies a channel for transmission in an FBE manner, and there is often a relatively large time delay.

Disclosure of Invention

The embodiment of the disclosure discloses a data transmission method, a data transmission device, communication equipment and a storage medium.

According to a first aspect of the embodiments of the present disclosure, a method for data transmission is provided, which is applied to a communication device, wherein the method includes:

determining N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; and the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same;

and performing CCA according to the FBE parameters.

In the foregoing scheme, the performing CCA according to FBE parameters includes:

responding to the failure of CCA according to the nth FBE parameter, and performing CCA according to the kth FBE parameter; wherein N is a positive integer less than or equal to N, and k is a positive integer less than or equal to N; the n is different from the k.

In the foregoing scheme, the performing CCA according to the FBE parameter includes:

in response to a CCA success in accordance with the nth FBE parameter, transmitting based on the nth FBE parameter.

In the above scheme, the CCA period corresponding to the nth FBE parameter and the kth FBE parameter is the same.

In the above scheme, the CCA period corresponding to the nth FBE parameter and the kth FBE parameter is different.

In the above scheme, the method further comprises:

and responding to that all CCAs corresponding to the N FBE parameters fail, and reusing the N FBE parameters for CCA.

In the above scheme, the communication device is a user equipment UE;

the determining N frame-based device FBE parameters comprises:

receiving the N FBE parameters through a broadcast channel;

alternatively, the first and second electrodes may be,

the N FBE parameters are received through a radio resource control, RRC, message.

In the above scheme, the communication device is a base station;

the determining N frame-based device FBE parameters comprises:

generating the N FBE parameters.

In the foregoing solution, the generating the N frame-based device FBE parameters includes:

and generating CCA periods corresponding to the N FBE parameters according to the transmission period of the data to be transmitted.

In the above scheme, in the N FBE parameters, offset values offset of CCA executed corresponding to different FBE parameters are not completely the same.

According to a second aspect of the embodiments of the present disclosure, there is also provided an apparatus for data transmission, which is applied to a communication device, where the apparatus includes:

a determination module configured to determine N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same;

and the detection module is used for carrying out CCA according to the FBE parameters.

In the above scheme, the detection module is configured to perform CCA according to the kth FBE parameter in response to a CCA failure performed according to the nth FBE parameter; wherein N is a positive integer less than or equal to N, and k is a positive integer less than or equal to N; the n is different from the k.

In the above scheme, the apparatus further comprises:

a transmission module configured to transmit based on the nth FBE parameter in response to a CCA success in accordance with the nth FBE parameter.

In the foregoing scheme, the detection module is configured to, in response to that all CCAs corresponding to the N FBE parameters fail, start CCA by reusing the N FBE parameters.

In the above scheme, the communication device is a user equipment UE;

the determination module configured to receive the N FBE parameters over a broadcast channel; or, configured to receive the N FBE parameters through a radio resource control, RRC, message.

In the above scheme, the communication device is a base station;

the determination module is configured to generate the N FBE parameters.

In the foregoing scheme, the determining module is configured to generate CCA periods corresponding to the N FBE parameters according to the transmission period of the data to be transmitted.

According to a third aspect of the embodiments of the present disclosure, there is also provided a communication device, wherein the communication device includes:

a processor;

a memory for storing the processor-executable instructions;

wherein the processor is configured to: when the executable instructions are executed, the method for transmitting data according to any embodiment of the disclosure is realized.

According to a fourth aspect of the embodiments of the present disclosure, there is also provided a computer storage medium, wherein the computer storage medium stores a computer executable program, and the computer executable program, when executed by a processor, implements the method for data transmission according to any of the embodiments of the present disclosure.

In the embodiment of the disclosure, N frame-based device FBE parameters are determined by a communication device; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same; and performing CCA according to the FBE parameters. As such, the communication device of the disclosed embodiments configures a plurality of FBE parameters; for a communication device configured with only one FBE parameter, when the communication device fails to perform CCA based on the current detection time of the one FBE parameter, the communication device may perform CCA using another FBE parameter without waiting for the next detection time corresponding to the one FBE parameter to arrive; furthermore, the waiting time of the next CCA can be greatly shortened, which is favorable for greatly shortening the waiting time of data or signaling and other transmissions.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system.

Fig. 2 is a flow chart illustrating a method of data transmission according to an example embodiment.

Fig. 3 is a flow chart illustrating a method of data transmission according to an example embodiment.

Fig. 4 is a flow chart illustrating a method of data transmission according to an example embodiment.

Fig. 5 is a flow chart illustrating a method of data transmission according to an example embodiment.

Fig. 6 is a flow chart illustrating an apparatus for data transmission according to an example embodiment.

Fig. 7 is a block diagram illustrating a user device in accordance with an example embodiment.

Fig. 8 is a block diagram illustrating a base station in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosed embodiments, as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure.

Referring to fig. 1, a schematic diagram of a structure of a wireless communication system according to an embodiment of the present disclosure is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: a number of user equipments 110 and a number of base stations 120.

User device 110 may refer to, among other things, a device that provides voice and/or data connectivity to a user. The user equipment 110 may communicate with one or more core networks via a Radio Access Network (RAN), and the user equipment 110 may be internet of things user equipment, such as a sensor device, a mobile phone (or "cellular" phone), and a computer having the internet of things user equipment, and may be a fixed, portable, pocket, handheld, computer-included, or vehicle-mounted device, for example. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point, a remote user equipment (remote), an access user equipment (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user equipment (user equipment). Alternatively, user device 110 may also be a device of an unmanned aerial vehicle. Alternatively, the user device 110 may also be a vehicle-mounted device, for example, a vehicle computer with a wireless communication function, or a wireless user device externally connected to the vehicle computer. Alternatively, the user device 110 may be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

The base station 120 may be a network side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication (4G) system, which is also called a Long Term Evolution (LTE) system; alternatively, the wireless communication system may be a 5G system, which is also called a new air interface system or a 5G NR system. Alternatively, the wireless communication system may be a next-generation system of a 5G system. Among them, the Access Network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network, New Generation Radio Access Network).

The base station 120 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 120 may be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 120 adopts a centralized distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 120.

The base station 120 and the user equipment 110 may establish a radio connection over a radio air interface. In various embodiments, the wireless air interface is based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

In some embodiments, an E2E (End to End) connection may also be established between user devices 110. Scenarios such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to vehicle) communication in vehicle networking communication (V2X).

In some embodiments, the wireless communication system may further include a network management device 130.

Several base stations 120 are connected to the network management device 130, respectively. The network Management device 130 may be a Core network device in a wireless communication system, for example, the network Management device 130 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The implementation form of the network management device 130 is not limited in the embodiment of the present disclosure.

As shown in fig. 2, an embodiment of the present disclosure provides a method for data transmission, where the method includes:

step S11, determining N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same;

and step S12, performing CCA according to the FBE parameters.

The data transmission method in the embodiment of the disclosure is applied to communication equipment. Here, the communication device may be a base station or a user equipment. Here, the base station is an access device for the user equipment to access the cellular mobile network. The base station may be various types of base stations, for example, a 3G base station, a 4G base station, or a 5G base station. Here, the user device may be a mobile phone, a computer, a server, a transceiving device, a tablet device or a medical device, etc.

In one embodiment, the step S11 includes: the base station determines N frame-based device FBE parameters;

the step S12 includes: and the base station performs CCA according to the FBE parameters.

Thus, in this embodiment, the base station may configure multiple sets of FBE parameters for downlink transmission.

In another embodiment, the step S11 includes: the user equipment determines N frame-based equipment FBE parameters;

the step S12 includes: and the user equipment performs CCA according to the FBE parameters.

Thus, in this embodiment, the ue may configure multiple sets of FBE parameters for uplink transmission.

In the embodiment of the present disclosure, it may be understood that the CCA is a way to detect whether a channel is idle; if the CCA is successful, indicating that the base station or the user equipment can occupy the channel for transmission; and if the CCA fails, indicating that the base station or the user equipment cannot occupy the channel for transmission. In general, the duration of performing a CCA may be one slot. For example, in one embodiment, if the one time slot may be 9 microseconds (us); the base station or the user equipment monitors whether the interference within 9 microseconds is smaller than a certain threshold value, and if so, the channel is considered to be idle; if not, the channel is not considered to be idle. If the channel is determined to be idle, the base station or the user equipment may occupy the channel for transmission.

In an embodiment of the present disclosure, the FBE parameters include: a CCA detection time parameter and a CCA period.

Wherein the CCA period is a time interval between two adjacent CCA times. For example, a CCA period corresponding to one FBE parameter is 10 milliseconds (ms), and CCA is performed every 10 ms.

Wherein the detection time parameter is operable to indicate at least one of: a start time, a stop time, and/or a duration of the CCA, etc. For example, if a CCA period corresponding to one FBE parameter is 10 ms, CCA may be started at a time of 0 ms, 10 ms, 20 ms, or 30 ms. For another example, if the CCA period corresponding to another FBE parameter is 5 ms, the CCA may be started at a time of 0 ms, 5 ms, 10 ms, or 15 ms.

In some embodiments, the detection time parameters corresponding to at least some of the N FBE parameters are at least partially different.

Illustratively, the base station determines 3 FBE parameters; the CCA period corresponding to the first FBE parameter is 6 milliseconds, and the corresponding CCA detection time parameters are 0 millisecond, 6 millisecond, 12 millisecond and 18 millisecond; the CCA period corresponding to the second FBE parameter is 6 milliseconds, and the corresponding CCA detection time parameters are 0 millisecond, 6 millisecond, 12 millisecond and 18 millisecond; the CCA period corresponding to the third FBE parameter is 7 ms, and the detection time parameters of the CCA correspond to 0 ms, 7 ms, 14 ms, and 21 ms. Detecting time parameters corresponding to the first FBE parameter and the third FBE parameter in the 3 FBE parameters are different; or, the second FBE parameters and the third FBE parameters are all different corresponding to the detection time parameters.

Illustratively, the user equipment determines 3 FBE parameters; the CCA period corresponding to the first FBE parameter is 6 milliseconds, and the corresponding CCA detection time parameters are 0 millisecond, 6 millisecond, 12 millisecond and 18 millisecond; the CCA period corresponding to the second FBE parameter is 3 ms, and the corresponding CCA time parameters are 0 ms, 3 ms, 6 ms, 12 ms, 15 ms, and 18 ms; the CCA period corresponding to the third FBE parameter is 6 ms, and the detection time parameters corresponding to the CCA are 0 ms, 6 ms, 12 ms, and 18 ms. The CCA time parameter corresponding to the first FBE parameter and the second FBE parameter in the 3 FBE parameters is at least partially different.

In some embodiments, the FBE parameters further comprise: the offset value (offset) of CCA is performed.

Here, the offset value is a value offset from a reference point; e.g., a value offset from 0. In an embodiment, the offset values of different FBE parameters with respect to the same reference point are different.

In some embodiments, the offset value comprises one or more time slots. In other embodiments, the offset value may include one or more symbols (symbols).

Illustratively, in an application scenario, if a CCA period corresponding to an FBE parameter is 10 milliseconds, the offset value is 1 timeslot; in this application scenario, if 1 timeslot is 1 millisecond, the detection time parameter corresponding to the FBE parameter is 1 millisecond, 11 milliseconds, 21 milliseconds, 31 milliseconds, … … (M × 10+1) milliseconds; wherein M is a positive integer greater than or equal to 1.

In some embodiments, the offset values for performing CCA corresponding to different FBE parameters are different and identical among the N FBE parameters.

Illustratively, in an application scenario, 5 FBE parameters are determined, the offset value of the first FBE parameter is 0, the offset value of the second FBE parameter is 2 slots, the offset value of the third FBE parameter is 5 symbols, the offset value of the fourth FBE parameter is 0, and the offset value of the fifth FBE parameter is 2 slots. It is determined that the offset values of at least the first FBE parameter, the second FBE parameter and the third FBE parameter are not the same.

In the disclosed embodiments, multiple FBE parameters may be configured at a base station or user equipment. Thus, when the base station or the user equipment fails to perform CCA based on the current detection time of one of the FBE parameters, the CCA performed by the other FBE parameter can be used, and the CCA does not need to be performed until the next detection time corresponding to the one FBE parameter arrives; furthermore, the waiting time of the next CCA can be greatly shortened, which is favorable for greatly shortening the waiting time of data or signaling and other transmissions.

In some embodiments, the step S12 includes:

Here, the N FBE parameters and the k FBE parameters may be any one of the N FBE parameters as long as N is different from k.

Exemplarily, the base station configures 2 FBE parameters for downlink transmission; wherein, the CCA periods corresponding to the 2 FBE parameters are the same and are all 10 milliseconds. If the offset value corresponding to the first FBE parameter is 0, the detection time parameter of the CCA corresponding to the first FBE parameter may be 0 ms, 10 ms, 20 ms, … …, (M × 10) ms; wherein M is a positive integer greater than or equal to 1. The offset value for the second FBE parameter is 1 slot, in this example, 1 millisecond; the CCA detection time parameter corresponding to the second FBE parameter may be 1 ms, 11 ms, 21 ms, … …, (M × 10) ms. If the CCA is failed in 30 milliseconds corresponding to the first FBE parameter, the base station performs CCA; the CCA may be performed within 31 ms corresponding to the second FBE parameter.

In the above example, if the base station further configures a third FBE parameter and a fourth FBE parameter for downlink transmission; when the base station fails to detect for 30 ms corresponding to the first FBE parameter, the base station may perform CCA based on one of the third FBE parameter or the fourth FBE parameter.

Exemplarily, the user equipment determines 3 FBE parameters for uplink transmission; wherein, the CCA periods corresponding to the 3 FBE parameters are the same, and are all 5 milliseconds. If the offset value corresponding to the first FBE parameter is 0, the CCA detection time parameter corresponding to the first FBE parameter may be 0 ms, 5 ms, 10 ms, … …, (M × 5) ms; wherein M is a positive integer greater than or equal to 1. The offset value corresponding to the second FBE parameter is 1 timeslot, in this example, one timeslot is 1 ms, and the detection time parameter of the CCA corresponding to the second FBE parameter may be 1 ms, 6 ms, 11 ms, … …, (M × 5+1) ms. The offset value corresponding to the third FBE parameter is 7 symbols, in this example, one slot is 14 symbols, and then 7 symbols are 0.5 ms; the CCA detection time parameter corresponding to the third FBE parameter may be 0.5 ms, 5.5 ms, 10.5 ms, … …, (mx 5+0.5) ms. If the CCA is failed in 30 milliseconds corresponding to the first FBE parameter, the base station performs CCA; the CCA may be performed for 31 ms corresponding to the second FBE parameter or 30.5 ms corresponding to the third FBE parameter.

Thus, in the embodiment of the present disclosure, if CCA fails in response to the nth FBE parameter; for example, in the two examples, if the base station fails to perform CCA in 30 milliseconds corresponding to the first FBE parameter, it is not necessary to wait for CCA in 40 milliseconds corresponding to the first FBE parameter, and CCA may be performed directly in 31 milliseconds corresponding to the second FBE parameter; or, if the user equipment fails to perform CCA in 30 milliseconds corresponding to the first FBE parameter, the user equipment does not need to wait for performing CCA in 40 milliseconds corresponding to the first FBE parameter, and may directly perform CCA in 31 milliseconds corresponding to the second FBE parameter or 30.5 milliseconds corresponding to the third FBE parameter. Therefore, the waiting time delay can be greatly shortened, the CCA speed is accelerated for the next time, and the waiting time delay for transmission can be greatly reduced.

Certainly, in order to further shorten the waiting time delay for performing CCA next time, when the base station or the user equipment fails to detect based on the detection time corresponding to one FBE parameter, one FBE parameter that is the shortest time away from the detection time may be selected, and the corresponding detection time is used for performing CCA.

For example, in some implementations, the detection time parameter of the k FBE parameters is the shortest distance from the detection time parameter of the n FBE parameters. For example, in the above example, if the CCA is failed in 30 milliseconds corresponding to the first FBE parameter, the base station may perform CCA; the CCA may be performed for 30.5 milliseconds corresponding to the third FBE parameter. Therefore, the time delay of waiting for CCA can be further shortened, and the speed of successfully accessing signals for transmission is improved.

In some embodiments, the step S12 includes:

In the embodiment of the present disclosure, if the CCA performed by the base station according to the nth FBE parameter is successful, the transmission may be performed based on the CCA result; similarly, if the user equipment performs CCA successfully according to the nth FB parameter, transmission may be performed based on the CCA result.

In this embodiment of the present disclosure, the transmission performed by the base station or the user equipment may be: transmitting data, transmitting control signaling, or transmitting data and control signaling; in the embodiment of the present disclosure, the content and type of transmission are not limited.

In some embodiments, the CCA period corresponding to the nth FBE parameter and the kth FBE parameter is the same.

In other embodiments, the CCA period corresponding to the nth FBE parameter is different from the CCA period corresponding to the kth FBE parameter.

In this embodiment of the present disclosure, CCA periods corresponding to some FBE parameters of the N determined FBE parameters may be the same; or the CCA periods corresponding to all the FBE parameters in the N FBE parameters are the same; or, each of the N FBE parameters is different. Therefore, the configuration of the diversification of the CCA periods corresponding to the N FBE parameters can be realized.

As shown in fig. 3, the method further comprises:

step S13, in response to that all CCAs corresponding to the N FBE parameters fail, reusing the N FBE parameters for CCA.

Illustratively, the base station determines 3 FBE parameters for downlink transmission; wherein, the CCA periods corresponding to the 3 FBE parameters are the same, and are all 5 milliseconds. If the offset value corresponding to the first FBE parameter is 0, the CCA detection time parameter corresponding to the first FBE parameter may be 0 ms, 5 ms, 10 ms, … …, (M × 5) ms; wherein M is a positive integer greater than or equal to 1. The offset value corresponding to the second FBE parameter is 1 timeslot, in this example, one timeslot is 1 ms, and the detection time parameter of the CCA corresponding to the second FBE parameter may be 1 ms, 6 ms, 11 ms, … …, (M × 5+1) ms. The offset value corresponding to the third FBE parameter is 7 symbols, in this example, one slot is 14 symbols, and then 7 symbols are 0.5 ms; the CCA detection time parameter corresponding to the third FBE parameter may be 0.5 ms, 5.5 ms, 10.5 ms, … …, (mx 5+0.5) ms.

If the CCA is failed in 30 milliseconds corresponding to the first FBE parameter, the base station performs CCA; and when the CCA is performed for 31 milliseconds corresponding to the second FBE parameter or the CCA is performed for 30.5 milliseconds corresponding to the third FBE parameter fails, the CCA may be performed again based on 40 milliseconds corresponding to the first FBE parameter. Alternatively, in other examples, CCA may also be performed based on 40.5 milliseconds of the second FBE parameter or 41 milliseconds of the third FBE parameter.

In the embodiment of the present disclosure, if the base station or the user equipment completes the CCA operation on each FBE parameter in the N FBE parameters, all the parameters fail; the N FBE parameters may be reused for CCA. Therefore, the success rate of the CCA can be improved, so that the base station or the user equipment can occupy the channel to transmit data as soon as possible.

As shown in fig. 4, in some embodiments, the communication device is a user equipment, UE;

the determining N frame-based device FBE parameters comprises:

step S111, receiving the N FBE parameters through a broadcast channel; alternatively, the N FBE parameters are received through a radio resource control, RRC, message.

In one embodiment, the step S111 includes: and the user equipment receives the N FBE parameters sent by the base station through a broadcast channel, or receives the N FBE parameters sent by the base station through a radio resource control message.

It can be understood that the user equipment itself cannot configure the FBE parameters, and needs to configure the FBE parameters for it through the base station. As such, in the embodiment of the present disclosure, the ue may receive N FBE parameters broadcasted by the base station through a broadcast channel; alternatively, the N FBE parameters are received through an RRC message transmitted by the base station.

Of course, in other embodiments, the base station may also send only a part of FBE parameters in the N FBE parameters to the ue.

As shown in fig. 5, in other embodiments, the communication device is a base station;

the determining N frame-based device FBE parameters comprises:

step S112, generating the N FBE parameters.

Here, the cell in which the base station is located has a plurality of user equipments, or the base station is connected to a plurality of user equipment base stations.

Here, the base station may transmit the N FBE parameters to the plurality of user equipments through a broadcast channel.

Alternatively, the base station may transmit the N FBE parameters to the plurality of user equipments through an RRC message.

Alternatively, the base station may transmit the N FBE parameters to a designated user equipment through an RRC message.

In this embodiment of the present disclosure, the base station may randomly generate the N FBE parameters, where the at least one of a CCA period, a detection time parameter, and an offset value corresponding to the FBE parameter is configured. Or, the base station may also generate the N FBE parameters according to a preset rule.

For example, in some embodiments, the step S112 includes:

If the transmission period of the data to be transmitted is a first time length, generating a CCA period corresponding to at least part of FBE parameters in the N FBE parameters as the first time length; or generating a CCA period corresponding to at least part of the N FBE parameters as a second time length, wherein the difference between the second time length and the first time length is within a preset range.

In the embodiment of the present disclosure, a CCA period corresponding to the FBE parameter may be generated according to a transmission period of transmission data; therefore, the efficiency of data or signaling transmission is improved.

Of course, in other embodiments, the step S112 includes:

and if the data to be transmitted is aperiodic data, randomly configuring a CCA period contained in the FBE parameters.

Here, the aperiodic data is that transmission of data is not periodic.

Thus, in this embodiment, if the data to be transmitted is aperiodic data, the CCA period included in the FBE parameter may also be randomly configured.

For another example, in some embodiments, the step S112 includes:

and determining the current N FBE parameters according to historical FBE parameters.

In the embodiment of the disclosure, current N FBE parameters may be determined according to FBE parameters used historically, and the success rate of CCA performed based on the FBE parameters may be improved.

Example 1

The embodiment of the present disclosure further provides a data transmission method, which is applied to a base station, and the method includes the following steps:

the method comprises the following steps: the base station configures 2 FBE parameters;

specifically, the base station configures 2 FBE parameters for downlink transmission; the CCA periods corresponding to the 2 FBE parameters are the same and are all 10 milliseconds. If the offset value corresponding to the first FBE parameter is 0, the CCA detection time parameter corresponding to the first FBE parameter is 0 ms, 10 ms, 20 ms, … …, (M × 10) ms; wherein M is a positive integer greater than or equal to 1. The offset value for the second FBE parameter is 1 slot, in this example, 1 millisecond; the CCA detection time parameter corresponding to the second FBE parameter is 1 ms, 11 ms, 21 ms, … …, (M × 10) ms.

Step two: the base station performs CCA according to the 2 FBE parameters;

specifically, the base station performs CCA according to 20 milliseconds corresponding to the first FBE parameter; if the detection is successful, data are issued based on the first FBE parameter;

and if the detection fails, performing CCA according to 21 milliseconds corresponding to the second FBE parameter, and if the detection succeeds, issuing data based on the second FBE parameter.

Thus, in this example, when the CCA performed by the base station for 20 milliseconds corresponding to the first FBE parameter fails, the base station does not need to wait for 30 milliseconds to perform the CCA, and may directly perform the CCA based on 21 milliseconds corresponding to the second FBE parameter; therefore, the time for performing CCA next time is shortened, and the waiting time for the base station to send data can be shortened.

Example two

The embodiment of the present disclosure further provides a data transmission method, which is applied to a user equipment, and the method includes the following steps:

the method comprises the following steps: the user equipment receives 3 FBE parameters;

specifically, the user equipment receives 3 FBE parameters transmitted by the base station through a broadcast channel; the user equipment configures the 3 FBE parameters for uplink transmission. Wherein, the CCA periods corresponding to the 3 FBE parameters are the same and are all 10 milliseconds. If the offset value corresponding to the first FBE parameter is 0, the CCA detection time parameter corresponding to the first FBE parameter is 0 ms, 10 ms, 20 ms, … …, (M × 10) ms; wherein M is a positive integer greater than or equal to 1. The offset value corresponding to the second FBE parameter is 1 timeslot, in this example, one timeslot is 1 millisecond, and the detection time parameter of CCA corresponding to the second FBE parameter is 1 millisecond, 11 milliseconds, 21 milliseconds, … …, (M × 10) milliseconds. The offset value corresponding to the third FBE parameter is 7 symbols, in this example, one slot is 14 symbols, and then 7 symbols are 0.5 ms; the CCA detection time parameter corresponding to the third FBE parameter is 0.5 ms, 5.5 ms, 10.5 ms, … …, (mx 10+0.5) ms.

Step two: the user equipment performs CCA according to the 3 FBE parameters;

specifically, the user equipment performs CCA according to 20 milliseconds corresponding to the first FBE parameter; if the detection is successful, uploading data based on the first FBE parameter;

if the detection fails, CCA is carried out according to 20.5 milliseconds corresponding to the third FBE parameter, and if the detection succeeds, data are uploaded based on the third FBE parameter;

and if the detection fails, performing CCA based on 21 milliseconds corresponding to the second FBE parameter, and if the detection succeeds, uploading data based on the second FBE parameter.

In this way, in this example, when the CCA performed in 20 milliseconds corresponding to the first FBE parameter of the user equipment fails, there is no need to wait for 30 milliseconds to perform the CCA, and the CCA may be performed directly based on 20.5 milliseconds corresponding to the third FBE parameter. And if the CCA performed based on the corresponding 20.5 milliseconds of the third FBE parameter fails, there is no need to wait for 30.5 milliseconds to perform CCA, and the CCA may be performed based on the corresponding 21 milliseconds of the second FBE parameter directly. Therefore, the embodiment can shorten the time for performing CCA next time, and further can shorten the waiting time for the base station to send data.

As shown in fig. 6, an embodiment of the present disclosure provides a processing apparatus for data transmission, which is applied to a communication device, where the apparatus includes: a determining module 41, a detecting module 42 and a transmitting module 43; wherein the content of the first and second substances,

the determination module 41 configured to determine N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same;

the detection module 42 performs CCA according to the FBE parameter.

In some embodiments, the detection module 42 is configured to perform CCA according to the kth FBE parameter in response to a CCA failure according to the nth FBE parameter; wherein N is a positive integer less than or equal to N, and k is a positive integer less than or equal to N; the n is different from the k.

In some embodiments, the apparatus further comprises:

a transmission module 43 configured to transmit based on the nth FBE parameter in response to a CCA success in accordance with the nth FBE parameter.

In some embodiments, the nth FBE parameter is different from a CCA period corresponding to the kth FBE parameter.

In some embodiments, the detecting module 43 is configured to, in response to that all CCAs corresponding to the N FBE parameters fail, start CCA by reusing the N FBE parameters.

In some embodiments, the communication device is a user equipment, UE;

the determining module 41 configured to receive the N FBE parameters through a broadcast channel; or, configured to receive the N FBE parameters through a radio resource control, RRC, message.

In some embodiments, the communication device is a base station;

the determining module 41 is configured to generate the N FBE parameters.

In some embodiments, the determining module 41 is configured to generate CCA periods corresponding to the N FBE parameters according to the transmission period of the data to be transmitted.

In some embodiments, the offset values offset for performing CCA for different FBE parameters are not identical for the N FBE parameters.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

The embodiment of the present disclosure further provides a communication device, where the communication device includes:

a processor;

a memory for storing the processor-executable instructions;

The processor may include, among other things, various types of storage media, which are non-transitory computer storage media capable of continuing to remember the information stored thereon after a power loss to the communication device.

The processor may be connected to the memory via a bus or the like for reading an executable program stored on the memory, e.g. at least one of the methods as shown in fig. 2 to 5.

The embodiment of the disclosure also provides a computer storage medium, wherein the computer storage medium stores a computer executable program, and the executable program is executed by a processor to implement the data transmission method of any embodiment of the disclosure.

Fig. 7 is a block diagram illustrating a User Equipment (UE)800 according to an example embodiment. For example, user device 800 may be a mobile phone, a computer, a digital broadcast user device, a messaging device, a gaming console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.

Referring to fig. 7, user device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the user device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

Memory 804 is configured to store various types of data to support operations at user device 800. Examples of such data include instructions for any application or method operating on user device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power component 806 provides power to the various components of the user device 800. Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for user device 800.

The multimedia component 808 comprises a screen providing an output interface between the user device 800 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the user equipment 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the user device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

Sensor component 814 includes one or more sensors for providing various aspects of state assessment for user device 800. For example, sensor assembly 814 may detect an open/closed state of device 800, the relative positioning of components, such as a display and keypad of user device 800, sensor assembly 814 may also detect a change in the position of user device 800 or a component of user device 800, the presence or absence of user contact with user device 800, the orientation or acceleration/deceleration of user device 800, and a change in the temperature of user device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communications component 816 is configured to facilitate communications between user device 800 and other devices in a wired or wireless manner. The user equipment 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the user device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the user device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

As shown in fig. 8, an embodiment of the present disclosure illustrates a structure of a base station. For example, the base station 900 may be provided as a network side device. Referring to fig. 9, base station 900 includes a processing component 922, which further includes one or more processors and memory resources, represented by memory 932, for storing instructions, e.g., applications, that are executable by processing component 922. The applications stored in memory 932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 922 is configured to execute instructions to perform any of the methods described above as applied to the base station, e.g., the methods shown in fig. 2-3.

The base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input/output (I/O) interface 958. The base station 900 may operate based on an operating system stored in memory 932, such as Windows Server (TM), Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

A method for data transmission is applied to communication equipment, wherein the method comprises the following steps:

determining N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same;

and performing CCA according to the FBE parameters.
The method of claim 1, wherein the CCA according to FBE parameters comprises:

responding to the failure of CCA according to the nth FBE parameter, and performing CCA according to the kth FBE parameter; wherein N is a positive integer less than or equal to N, and k is a positive integer less than or equal to N; the n is different from the k.
The method of claim 2, wherein the performing CCA according to the FBE parameter comprises:

in response to a CCA success in accordance with the nth FBE parameter, transmitting based on the nth FBE parameter.
The method according to any of claims 1 to 3, wherein the nth FBE parameter is the same as the corresponding CCA period of the kth FBE parameter.
The method according to any of claims 1 to 3, wherein the nth FBE parameter is different from the k-th FBE parameter with respect to a CCA period.
The method of claim 2, wherein the method further comprises:

and responding to that all CCAs corresponding to the N FBE parameters fail, and reusing the N FBE parameters for CCA.
The method of claim 1, wherein the communication device is a User Equipment (UE);

the determining N frame-based device FBE parameters comprises:

receiving the N FBE parameters through a broadcast channel;

alternatively, the first and second electrodes may be,

the N FBE parameters are received through a radio resource control, RRC, message.
The method of claim 1, wherein the communication device is a base station;

the determining N frame-based device FBE parameters comprises:

generating the N FBE parameters.
The method of claim 8, wherein the generating the N frame-based device FBE parameters comprises:

and generating CCA periods corresponding to the N FBE parameters according to the transmission period of the data to be transmitted.
The method according to claim 1, wherein offset values offset for performing CCA for different FBE parameters are not identical among the N FBE parameters.
An apparatus for data transmission, applied to a communication device, wherein the apparatus comprises:

a determination module configured to determine N frame-based device FBE parameters; wherein N is a positive integer equal to or greater than 2; the detection time parameters of the clear channel assessment CCA corresponding to the N FBE parameters are not completely the same;

and the detection module is used for carrying out CCA according to the FBE parameters.
The apparatus of claim 11, wherein the detection module is configured to perform CCA according to a kth FBE parameter in response to a CCA failure according to an nth FBE parameter; wherein N is a positive integer less than or equal to N, and k is a positive integer less than or equal to N; the n is different from the k.
The apparatus of claim 12, wherein the apparatus further comprises:

a transmission module configured to transmit based on the nth FBE parameter in response to a CCA success in accordance with the nth FBE parameter.
The apparatus according to any one of claims 11 to 13, wherein the CCA period corresponding to the nth FBE parameter and the kth FBE parameter is the same.
The apparatus according to any of claims 11-13, wherein the nth FBE parameter is different from the k-th FBE parameter by a CCA period.
The apparatus of claim 12, wherein the detection module is configured to start CCA with the N FBE parameters again in response to all of the CCAs corresponding to the N FBE parameters failing.
The apparatus of claim 1, wherein the communication device is a User Equipment (UE);

the determination module configured to receive the N FBE parameters over a broadcast channel; or, configured to receive the N FBE parameters through a radio resource control, RRC, message.
The apparatus of claim 11, wherein the communication device is a base station;

the determination module is configured to generate the N FBE parameters.
The apparatus of claim 18, wherein the determining module is configured to generate CCA periods corresponding to the N FBE parameters according to a transmission period of the data to be transmitted.
The apparatus of claim 11, wherein offset values offset for CCA performed for different ones of the N FBE parameters are not identical.
A communication device, wherein the communication device comprises:

a processor;

a memory for storing the processor-executable instructions;

wherein the processor is configured to: a method of performing a data transmission according to any one of claims 1 to 10 when the executable instructions are executed.
A computer storage medium, wherein the computer storage medium stores a computer executable program which, when executed by a processor, implements the method of data transmission of any of claims 1 to 10.