CN115623596A

CN115623596A - Method, device, system and storage medium for OFDMA processing of uplink

Info

Publication number: CN115623596A
Application number: CN202211635987.5A
Authority: CN
Inventors: 刘大伟; 张赟; 刘森; 祖东辉; 柳守斌
Original assignee: Aojie Technology Shenzhen Co ltd
Current assignee: Aojie Technology Shenzhen Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-01-17
Anticipated expiration: 2042-12-20
Also published as: CN115623596B

Abstract

The application provides an uplink OFDMA processing method, a device, a system and a storage medium, wherein the uplink OFDMA processing method comprises the following steps: obtaining all RUs based on OFDMA working mode, the access point determines data transmission mode corresponding to each station in the channel, wherein the data transmission mode is used for determining time slice in the RU which does not transmit repeated data, and the repeated data comprises tag code and/or head data; each RU completes transmission of uplink data packets according to the data transmission mode. By not sending repeated data in the RU, the operation resources of each site and the electric quantity of the site are saved while the original communication effect is not influenced.

Description

Method, device, system and storage medium for OFDMA processing of uplink

Technical Field

The present application relates to the field of OFDMA data processing technologies, and in particular, to an uplink OFDMA processing method, apparatus, system, and storage medium.

Background

In the OFDMA mode, the resources of the entire channel are divided into fixed-size time-frequency Resource blocks RU (Resource unit), and data transmitted by the user equipment is carried in each RU.

According to the OFDMA protocol, whether each frame time slice needs to be uplinked or not needs to contain frame header data, the frame headers of all the stations are consistent, and only the transmission RUs are different.

Disclosure of Invention

In view of the above, embodiments of the present disclosure provide an uplink OFDMA processing method, apparatus, system and storage medium, which are applied to an uplink OFDMA mode data transmission process.

The embodiment of the specification provides the following technical scheme:

the embodiment of the present specification provides an uplink OFDMA processing method, including:

obtaining all RUs based on the OFDMA working mode, and determining a data transmission mode corresponding to each station in a channel by an access point, wherein the data transmission mode is used for determining a time slice in the RU for not transmitting repeated data;

each RU completes transmission of uplink data packets according to the data transmission mode.

An embodiment of the present specification further provides an uplink OFDMA processing apparatus, where the uplink OFDMA processing apparatus includes:

a determining module for obtaining all RUs based on OFDMA operation mode, the access point determining data transmission mode of each station, wherein the data transmission mode is used for determining time slice in each RU not transmitting repeated data;

and a sending module, configured to complete sending of the uplink data packet by each RU according to the data sending mode.

The embodiments of the present specification further provide an uplink OFDMA processing system, which includes a memory, a processor, and a computer program, where the computer program is stored in the memory, and the processor executes the computer program to perform the uplink OFDMA processing method in any technical solution of the embodiments of the present specification.

The embodiments of the present specification further provide a readable storage medium, where a computer program is stored, and the computer program is used for implementing the uplink OFDMA processing method in any technical solution of the present specification when executed by a processor.

Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise:

by determining that the stations do not send repeated data in the RU, the operation resources of the stations are saved, the electric quantity of the stations is saved and the like while the original communication effect is not influenced.

Drawings

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

Fig. 1 is a data transmission diagram of a typical scenario of an uplink OFDMA mode in the prior art;

fig. 2 is a schematic diagram of uplink OFDMA mode data transmission in the present application;

fig. 3 is a flow chart of uplink OFDMA mode data transmission in the present application;

FIG. 4 is a diagram illustrating an exemplary scenario data transmission in the uplink OFDMA mode of the present application;

fig. 5 is another exemplary scenario data transmission diagram in the uplink OFDMA mode of the present application;

fig. 6 is a schematic diagram of an uplink OFDMA processing apparatus in the present application;

fig. 7 is a schematic diagram of an uplink OFDMA processing system according to the present application.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details.

OFDMA is a more efficient communication data transmission mode, and achieves multi-user multiplexing of channel resources by allocating subcarriers to different users and adding multiple access in an OFDM system. Users can be distinguished according to RU. The user equipment corresponds to a website, and the website can comprise a mobile phone, a plane computer, an Ipad, an intelligent wearable device and the like.

In view of this, the inventor finds that the OFDMA protocol requires that the time slice of each uplink frame includes data such as a frame header, and the header included in each station on the communication link is consistent, and only the data content in the RU is different. As shown in fig. 1, each frame time slice in the RU1-RU5 uplink includes repeated frame header data, such as Preamble (tag code) and Head (header data), and data contents of t1-t3 are consistent, and only data contents of t3-t4 are different.

Based on this, the embodiments of the present specification propose an OFDMA processing scheme for uplink: as shown in fig. 2, the access point determines whether each frame time slice needs to include repeated and same data such as a frame header when each station uploads data in the channel, in order to save operating computing resources, save energy consumption, and the like, at least one station is designated by the AP to send all preambles and heads when uploading data, and the other stations can determine not to send all or part of the repeated tag code and not to send all or part of the repeated header data according to the designation of the AP. For example, some time periods of Preamble do not send data, and some time periods of Head do not send data. In FIG. 2, RU2 specifies that Preamble of certain sites do not send time slices of ta-tb, and RU4 specifies that Head of certain sites do not send time slices of tc-td.

The technical solutions provided by the embodiments of the present application are described below with reference to the accompanying drawings.

As shown in fig. 3, the method for uplink OFDMA processing according to this embodiment includes step S310 of obtaining all RUs based on the OFDMA operation mode, and determining a data transmission mode corresponding to each station in the channel by access, where the data transmission mode is used to determine a time slice in the RU where duplicate data is not transmitted. Wherein the duplicate data includes part or all of a tag code (e.g., preamble) and/or part or all of header data (Head).

Step S310, all RUs are obtained based on the OFDMA working mode, and the access point determines a data transmission mode corresponding to each station in the channel, wherein the data transmission mode is used for determining a time slice in the RU for not transmitting the repeated data.

Referring to fig. 2, all RUs are obtained based on the OFDMA working mode, and the access point may determine the data transmission mode corresponding to each station in the channel, that is, it is specified by the access point that uplink data transmission of some stations requires that each frame time slice includes duplicate data, and it is preset that uplink data of other stations does not require that each frame time slice transmits duplicate data, such as all or part of tag codes and/or header data. As in fig. 2, the stations of RU1, RU3, and RU5 transmit the tag code and header data every frame time slice. RU2 and RU4 may specify time slices in which stations do not transmit tag codes and/or header data.

Step S320, according to the data transmission mode, each RU completes transmission of the uplink data packet.

Referring to fig. 2, the access point controls at least one station to transmit all preambles and heads when uploading data, and the rest stations do not transmit data in some time periods according to the presetting of the AP, and the heads do not transmit data in some time periods. Therefore, the operation resources of each site are saved, the electric quantity of the site is saved and the like by not sending repeated data in the RU, and the original communication effect is not influenced.

In some embodiments, the data transmission mode includes determining that the uplink data transmission of at least one station includes the tag code and the header data in each time slice of the frame from the plurality of stations, and determining a continuous setting or a discontinuous setting of the time slices in the RU that do not transmit the tag code and/or the header data from the remaining stations.

In the embodiment of the present specification, a data sending mode corresponding to each station in a channel is set by an access point, that is, it is determined from a plurality of stations that each frame time slice for sending uplink data of at least one station includes Preamble and Head, and it is determined from the other stations that a time slice for not sending Preamble and/or Head in RU is sent, so that on the premise of not affecting the original communication effect, the computing resources of the station are saved for processing other transactions, and the electric quantity of the station is also saved. In some embodiments, the corresponding data transmission mode may be determined according to the type of the station and the battery power state of the station.

In some embodiments, the method for OFDMA processing for uplink further includes: the access point determines that each frame time slice at the first connection site or the first RU site contains a tag code and header data.

Specifically, the access point determines that at least one station sends all preambles and heads. The station may be determined to be the first connection station of the access point, or the station where the first RU is located (see RU1 in fig. 5 for sending all preambles and Head). Therefore, repeated tag codes and/or head data can be selectively not sent on other sites, so that the computing resources of the sites are saved on the premise of not influencing the original communication effect so as to process other transactions, and the electric quantity of the sites is also saved.

In some embodiments, the method for OFDMA processing for uplink further includes: and the access point determines the station which does not transmit the tag code and/or the header data according to the type of each station, and determines the time slice which does not transmit the tag code and/or the header data.

Specifically, if the site includes an IOT (Internet of Things) device powered by a battery, it may not be necessary to send a time slice in all preambles that is repeated with other STATION data, and/or it may not be necessary to send a time slice in all Head that is repeated with other STATION data, and it is set that other STATIONs send all preambles and heads. As shown in FIG. 2, ta-tb in RU2 does not send the time slice corresponding to Preamble part data, and tc-td in RU4 does not send the time slice corresponding to Head part data. For example, the intelligent wearable device sets a time slice that does not need to send the repeated data in the Preamble, and/or a time slice that does not need to send the repeated data in the Head. And if the station which is not powered by the battery can send all Preamble and Head.

In some embodiments, the method for OFDMA processing for uplink further includes: acquiring the battery electric quantity state of each station; if the residual electric quantity of the battery is smaller than the battery use threshold, determining that the repeated data is not transmitted in the data transmission mode of the station corresponding to the battery use threshold; or determining that the repeated data is not transmitted in the data transmission mode set by the station power supply connection other stations corresponding to the battery use threshold value.

Specifically, the battery power state of the battery power supply STATION is obtained, the battery power surplus and the battery life are determined according to the service condition of the battery power, and whether the STATION needs to send time slices which are repeated with other STATION data in all Preamble and/or whether time slices which are repeated with other STATION data in all Head need to be sent is determined. In some embodiments, at least 2 site devices use the same battery power source, for example, two terminals capable of supplying power to each other use the same battery power source, and the 2 terminals may be a mobile phone, a tablet, an Ipad, an intelligent wearable device (e.g., an AI wearable device), and the like that are charged by each other. If the battery residual capacity is smaller than the battery use threshold, the STATION equipment determines that the repeated data is not sent in the data sending mode of the corresponding STATION, and if the battery residual capacity is below the battery use threshold, the time slices which are repeated with other STATION data in all Preamble are not sent, and the time slices which are repeated with other STATION data in all Head are not sent. Or determining that other STATIONs in power supply connection with the STATION do not send time slices which are repeated with other STATION data in all preambles, and do not send time slices which are repeated with other STATION data in all Head. In some embodiments, if the station battery remaining capacity is greater than or equal to the battery usage threshold, uplink data requires that each station send all preambles and heads.

Based on the OFDMA working mode, in combination with the data transmission mode corresponding to the uplink data site, it can be known that in some cases, it is set that no repeating data is transmitted in the RU, for example, all or part of the corresponding time slice of the Preamble is not transmitted and/or all or part of the corresponding time slice of the Head is not transmitted, so that the operation resources of the site are greatly improved while the original communication effect is not affected, and the power consumption is saved.

In some embodiments, the access point determines that a RU-corresponding station includes a tag code and header data in each frame time slice, and none of the remaining RU-corresponding stations transmit a tag code in each frame time slice.

As shown in fig. 4, the AP determines that the tag code and the header data are included in each frame time slice of RU1 corresponding to the STATION. And the tag code is not sent on each frame time slice of the rest RUs corresponding to the status, if the RUs 2-RU5 do not send the Preamble, the time slices ta = t1 and tb = t2 are not sent.

In some embodiments, the access point determines that each frame time slice of one RU corresponding station includes the tag code and the header data, and none of the tag code and the header data is transmitted on the first frame time slices of the remaining RU corresponding stations.

As shown in FIG. 5, the AP determines that the STATION of RU1 sends Preamble and Head, and the STATIONs of other RUs do not send Preamble and Head. As RU2-RU5 do not transmit Preamble and Head, the time slice that does not transmit is ta = t1, tb = t2= tc, td = t3 at this time.

Fig. 6 shows an uplink OFDMA processing apparatus, where the apparatus 60 includes:

a determining module 61, configured to obtain all RUs based on the OFDMA operation mode, and the access point determines a data transmission mode corresponding to each station, where the data transmission mode is used to determine a time slice in each RU for which duplicate data is not transmitted.

A transmission mode 62 for each RU completing transmission of uplink data packets according to the data transmission mode.

Fig. 7 shows a schematic structure of an uplink OFDMA processing system, where the system 70 includes: a processor 71, a memory 72 and computer programs; wherein

A memory 72 for storing the computer program, which may also be a flash memory (flash). The computer program is, for example, an application program, a functional module, or the like that implements the above method.

A processor 71 for executing the computer program stored in the memory to implement the steps performed by the apparatus in the above method. Reference may be made in particular to the description relating to the preceding method embodiment.

Alternatively, the memory 72 may be separate or integrated with the processor 71.

When the memory 72 is a device separate from the processor 71, the apparatus may further include:

a bus 73 for connecting the memory 72 and the processor 71.

The present invention also provides a readable storage medium, in which a computer program is stored, which, when being executed by a processor, is adapted to implement the methods provided by the various embodiments described above.

The readable storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media may be any available media that can be accessed by a general purpose or special purpose computer. For example, a readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Additionally, the ASIC may reside in user equipment. Of course, the processor and the readable storage medium may also reside as discrete components in a communication device. The readable storage medium may be a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

The same and similar parts among the various embodiments in the present specification are referred to each other, and each embodiment focuses on differences from the other embodiments. In particular, for the product embodiments described later, since they correspond to the method, the description is simple, and the relevant points can be referred to the partial description of the system embodiments.

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

Claims

1. An uplink OFDMA processing method, comprising:

2. The method of OFDMA processing for uplink according to claim 1, wherein the data transmission pattern includes: determining that each frame time slice of uplink data transmission of at least one station comprises a tag code and header data from a plurality of stations, and determining time slices in the RU not transmitting the tag code and/or the header data from the rest stations; wherein the data transmission mode determines a time slice continuous setting or a discontinuous setting in each RU in which the tag code and/or the header data is not transmitted.

3. The uplink OFDMA processing method of claim 2, further comprising:

the access point determines that each frame time slice at the first connection site or the first RU site contains a tag code and header data.

4. The uplink OFDMA processing method of claim 1, further comprising:

and the access point determines the station which does not transmit the tag code and/or the header data according to the type of each station, and determines the time slice which does not transmit the tag code and/or the header data.

5. The uplink OFDMA processing method of claim 1, wherein the uplink OFDMA processing method further comprises:

acquiring the battery electric quantity state of each station;

if the residual electric quantity of the battery is smaller than the battery use threshold, determining that the repeated data is not transmitted in the data transmission mode of the station corresponding to the battery use threshold; or determining that the repeated data is not transmitted in the data transmission mode set by the station power supply connection other stations corresponding to the battery use threshold value.

6. The uplink OFDMA processing method of claim 1, wherein the uplink OFDMA processing method comprises:

the access point determines that each frame time slice of a corresponding station of one RU contains the tag code and the header data, and the tag codes are not sent on each frame time slice of the corresponding stations of the other RUs.

7. The uplink OFDMA processing method of claim 1, wherein the uplink OFDMA processing method comprises:

the access point determines that each frame time slice of a station corresponding to one RU contains the tag code and the header data, and each frame time slice of the stations corresponding to the other RUs does not send the tag code and the header data.

8. An uplink OFDMA processing apparatus, comprising:

the access point determines a data transmission mode corresponding to each station, wherein the data transmission mode is used for determining a time slice in each RU for not transmitting repeated data;

9. An uplink OFDMA processing system, comprising: memory, a processor and a computer program, the computer program being stored in the memory, the processor running the computer program to perform the uplink OFDMA processing method of any of claims 1 to 7.

10. A readable storage medium, in which a computer program is stored, which, when being executed by a processor, is adapted to carry out the method for OFDMA processing for uplink according to any one of claims 1 to 7.