CN112752350A - Data transmission method, device and system - Google Patents
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- H04W74/002—Transmission of channel access control information
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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Abstract
The embodiment of the invention provides a method, a device and a system for data transmission, wherein the method for data transmission comprises the steps of sending first transmission control information to a station, wherein the first transmission control information is used for indicating the station and/or an access point to carry out data transmission according to the first transmission control information; and transmitting data with the station according to the first transmission control information within the first transmission control duration.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for data transmission.
Background
WIFI mainly adopts Distributed Coordination Function (DCF) and Enhanced Distributed Channel Access (EDCA) modes, and their core is Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. While CSMA/CA can satisfy multiple Stations (STAs) fair access and maintain a large throughput, it cannot strictly guarantee that the transmission requirements of low-latency traffic are satisfied, especially in the case of a large number of users. Although a non-contention channel access manner is introduced to a Point Coordination Function (PCF) and a Hybrid Coordination Function (HCF) controlled channel access (HCCA) to implement controllable data transmission scheduling to a certain extent, once data transmission is interfered in a working frequency band, reliability and robustness of the data transmission are greatly reduced.
For the problem of unreliable data transmission in the related technology, no solution exists yet.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a system for data transmission, which are used for at least solving the problem of unreliable data transmission in the related technology.
According to an embodiment of the present invention, there is provided a data transmission method, including:
sending first transmission control information to a station, wherein the first transmission control information is used for indicating the station and/or the access point to carry out data transmission according to the first transmission control information;
and transmitting data with the station according to the first transmission control information within a first transmission control duration.
According to another embodiment of the present invention, there is also provided a data transmission method, including:
receiving first transmission control information sent by an access point, wherein the first transmission control information is used for indicating the site and/or the access point to carry out data transmission according to the first transmission control information;
and transmitting data with the access point according to the first transmission control information within a first transmission control duration.
According to another embodiment of the present invention, there is also provided a data transmission apparatus, including:
a first sending module, configured to send first transmission control information to a station, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and the first transmission module is used for carrying out data transmission with the station according to the first transmission control information within a first transmission control duration.
According to another embodiment of the present invention, there is also provided a data transmission apparatus, including:
a first receiving module, configured to receive first transmission control information sent by an access point, where the first transmission control information is used to instruct a station and/or the access point to perform data transmission according to the first transmission control information;
and the first transmission module is used for carrying out data transmission with the access point according to the first transmission control information within a first transmission control duration.
According to still another embodiment of the present invention, there is also provided a system for data transmission, including:
the access point is used for sending first transmission control information to the station, wherein the first transmission control information is used for indicating the station and/or the access point to carry out data transmission according to the first transmission control information;
and the station is used for receiving the first transmission control information and carrying out data transmission with the access point according to the first transmission control information within a first transmission control duration.
According to a further embodiment of the present invention, a computer-readable storage medium is also provided, in which a computer program is stored, wherein the computer program is configured to carry out the steps of any of the above-described method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a block diagram of a hardware structure of an access point of a method of data transmission according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of data transmission according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method of data transmission according to another embodiment of the present invention;
FIG. 4 is a block diagram of an apparatus for data transmission according to an embodiment of the present invention;
fig. 5 is a block diagram of an apparatus for data transmission according to another embodiment of the present invention;
FIG. 6 is a flow chart illustrating data transmission according to a first alternative embodiment of the present invention;
FIG. 7 is a flow chart illustrating data transmission according to a second alternative embodiment of the present invention;
FIG. 8 is a schematic flow chart of data transmission according to a third alternative embodiment of the present invention;
fig. 9 is a schematic flow chart of data transmission according to a fourth alternative embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The method embodiments provided by the embodiments of the present application may be executed in an access point, a computer terminal, or a similar computing device. Taking an access point as an example, fig. 1 is a block diagram of a hardware structure of an access point of a data transmission method according to an embodiment of the present invention. As shown in fig. 1, the access point 10 may include one or more (only one shown in fig. 1) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is merely illustrative and is not intended to limit the structure of the access point. For example, access point 10 may also include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1.
The memory 104 may be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the data transmission method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory located remotely from processor 102, which may be connected to access point 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the access point 10. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
In this embodiment, a method for data transmission operating in the above access point is provided, and fig. 2 is a flowchart of a method for data transmission according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, sending first transmission control information to a station, wherein the first transmission control information is used for instructing the station and/or an access point to perform data transmission according to the first transmission control information;
step S204, performing data transmission with the station according to the first transmission control information within the first transmission control duration.
Through the steps, the first transmission control information is sent to the site, wherein the first transmission control information is used for indicating the site and/or the access point to perform data transmission according to the first transmission control information, the data transmission is performed with the site according to the first transmission control information within the first transmission control duration, and the data transmission is controlled through the transmission control information, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of the data transmission is improved.
Alternatively, the execution subject of the above steps may be an access point or the like, but is not limited thereto.
Optionally, after sending the first transmission control information to the station, the method further includes:
sending second transmission control information to the station, wherein the time for the station to receive the second transmission control information is within the first transmission control duration, and the second transmission control information is used for indicating the station and/or the access point to perform data transmission according to the second transmission control information;
and transmitting data with the station according to the second transmission control information within the second transmission control duration.
It should be noted that the second transmission control duration may be the same as or different from the first transmission control duration. Receiving the second transmission control information within the first transmission control duration facilitates continuous transmission control.
Optionally, the second transmission control information is received by the station according to a continuation identifier included in the first transmission control information, where the continuation identifier is used to indicate continuation control of data transmission.
Illustratively, the continuous identification includes: a type of the second transmission control information.
Optionally, the first transmission control information and the second transmission control information respectively include at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
It should be noted that, for example, the first transmission control information includes at least one of the following: a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
It should be noted that, for example, the second transmission control information includes at least one of the following: a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
It should be further noted that, for example, the transmission control information is used to implement control on data transmission, and the "transmission control duration" may refer to a duration of time for controlling data transmission; the "designated object for performing data transmission" may refer to a designated object that can perform data transmission during the transmission control time, for example, the transmission control information may indicate that some or some designated objects perform data transmission at the designated time, where the data transmission may include uplink transmission and/or downlink transmission; the "designated object for stopping data transmission" may refer to a designated object for prohibiting data transmission during the transmission control time, for example, the transmission control information may indicate that some or some designated objects prohibit data transmission at the designated time; the "transmission time of uplink data transmission to be designated and the transmission time of downlink data transmission to be designated" may refer to a time for which transmission control information is used to instruct data transmission, for example, the "designated time for data transmission" described above; the "transmission resource for uplink data transmission of a designated object, and the transmission resource for downlink data transmission of a designated object" may refer to transmission resources required when a certain designated object or objects need to perform data transmission at a designated time.
This embodiment also provides another data transmission method, which may be applied to a station, and fig. 3 is a flowchart of a data transmission method according to another embodiment of the present invention, as shown in fig. 3, including: step S301, receiving first transmission control information sent by an access point, wherein the first transmission control information is used for instructing a station and/or the access point to perform data transmission according to the first transmission control information;
step S303, performing data transmission with the access point according to the first transmission control information within the first transmission control duration.
Through the steps, as the first transmission control information sent by the access point is received, the first transmission control information is used for indicating the station and/or the access point to carry out data transmission according to the first transmission control information; and transmitting data with the access point according to the first transmission control information within the first transmission control duration, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of data transmission is improved.
Optionally, after receiving the first transmission control information sent by the access point, the method further includes:
receiving second transmission control information sent by the access point within the first transmission control duration, wherein the second transmission control information is used for instructing the station and/or the access point to carry out data transmission according to the second transmission control information;
and transmitting data with the access point according to the second transmission control information within the second transmission control duration.
Optionally, receiving second transmission control information sent by the access point, includes:
and receiving second transmission control information according to a continuous identification included in the first transmission control information, wherein the continuous identification is used for indicating continuous control of data transmission.
Illustratively, the continuous identification includes: a type of the second transmission control information.
Optionally, the first transmission control information and the second transmission control information respectively include at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
It should be noted that, in this embodiment, the transmission control information may indicate a receiving side (e.g., a station) of the information to perform data transmission according to the transmission control information, or may inform the receiving side (e.g., the station) of the information how a sending side (e.g., an access point) of the control information performs data transmission, so as to control the receiving side (e.g., the station) of the transmission control information to perform data reception, for example, the receiving side of the transmission control information may perform some preparation work in advance for cooperating with the access point to perform data transmission; the transmission control information may instruct both the data transmission parties to perform data transmission based on the transmission control information.
It should be noted that "performing data transmission" in this embodiment may include receiving data or sending data, and "data" in this embodiment may include any kind of information such as data, feedback, response, and the like.
It should be further noted that the "transmission control duration" in this embodiment may be carried in the transmission control information, and further, the transmission control duration may be notified to a receiver of the transmission control information through the transmission control information.
In this embodiment, a data transmission apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details of which have been already described are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 4 is a block diagram of a data transmission apparatus according to an embodiment of the present invention, and as shown in fig. 4, the data transmission apparatus provided in this embodiment includes:
a first sending module 42, configured to send first transmission control information to a station, where the first transmission control information is used to instruct the station and/or an access point to perform data transmission according to the first transmission control information;
a first transmission module 44, configured to perform data transmission with the station according to the first transmission control information within the first transmission control duration.
Through the module, the first transmission control information is sent to the site, wherein the first transmission control information is used for indicating the site and/or the access point to perform data transmission according to the first transmission control information, the data transmission is performed with the site according to the first transmission control information within the first transmission control duration time, and the data transmission is controlled through the transmission control information, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of the data transmission is improved.
Optionally, the apparatus further comprises: a second sending module, configured to send second transmission control information to the station after sending the first transmission control information to the station, where a time for the station to receive the second transmission control information is within the first transmission control duration, and the second transmission control information is used to instruct the station and/or the access point to perform data transmission according to the second transmission control information; and the second transmission module is used for carrying out data transmission with the station according to the second transmission control information within the second transmission control duration.
Optionally, the second transmission control information is received by the station according to a continuation identifier included in the first transmission control information, where the continuation identifier is used to indicate continuation control of data transmission.
Optionally, the first transmission control information and the second transmission control information respectively include at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
In this embodiment, another data transmission apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description of the apparatus is omitted for brevity. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a block diagram of a data transmission apparatus according to another embodiment of the present invention, and as shown in fig. 5, the data transmission apparatus provided in this embodiment includes:
a first receiving module 51, configured to receive first transmission control information sent by an access point, where the first transmission control information is used to instruct a station and/or the access point to perform data transmission according to the first transmission control information;
a first transmission module 53, configured to perform data transmission with the access point according to the first transmission control information within the first transmission control duration.
Through the module, the first transmission control information sent by the access point is received, and the first transmission control information is used for indicating the station and/or the access point to carry out data transmission according to the first transmission control information; and transmitting data with the access point according to the first transmission control information within the first transmission control duration, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of data transmission is improved.
Optionally, the apparatus further comprises: a second receiving module, configured to receive, after receiving the first transmission control information sent by the access point, second transmission control information sent by the access point within the first transmission control duration, where the second transmission control information is used to instruct a station and/or the access point to perform data transmission according to the second transmission control information; and a second transmission module, configured to perform data transmission with the access point according to the second transmission control information within the second transmission control duration.
Optionally, the second receiving module is configured to receive the second transmission control information according to a continuous identifier included in the first transmission control information, where the continuous identifier is used to indicate continuous control of data transmission.
Optionally, the first transmission control information and the second transmission control information respectively include at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
The embodiment also provides a data transmission system, which includes an access point and a station, where the access point is configured to send first transmission control information to the station, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information; the station is used for receiving the first transmission control information and performing data transmission with the access point according to the first transmission control information within the first transmission control duration.
Through the system, the access point sends the first transmission control information to the station, wherein the first transmission control information is used for indicating the station and/or the access point to carry out data transmission according to the first transmission control information, the data transmission is carried out with the station according to the first transmission control information within the first transmission control duration time, and the data transmission is controlled through the transmission control information, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of the data transmission is improved.
Optionally, the access point is configured to send, after sending the first transmission control information to the station, second transmission control information to the station, where the second transmission control information is used to instruct the station and/or the access point to perform data transmission according to the second transmission control information; the station is configured to receive the second transmission control information, and perform data transmission with the access point according to the second transmission control information within a second transmission control duration.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Alternative embodiments
The embodiment of the invention provides a trigger mode-based on-time scheduling transmission method, which expands and optimizes a Trigger Uplink Access (TUA) method and provides a trigger mode-based uplink and downlink scheduling transmission method and a continuous trigger transmission method. The method for uplink and downlink scheduling transmission based on a trigger mode includes that a scheduling frame (also called a trigger frame) is sent by an Access Point (AP) to trigger transmission of a physical layer protocol data unit (PPDU) and a downlink physical layer protocol data unit (PPDU), wherein the scheduling frame includes related transmission allocation parameters of an uplink PPDU and a downlink PPDU, and transmission of the uplink PPDU and the downlink PPDU is controlled through the scheduling frame. The continuous trigger transmission method is to schedule data transmission in time by continuously sending trigger frames.
It should be noted that, for example, the schedule frame may be a bearer of the "transmission control information" in the above embodiment, and is used for carrying the "transmission control information" in this embodiment.
The embodiment of the invention realizes the on-time transmission scheduling between the AP and the site within a specific time range by the uplink and downlink scheduling transmission method based on the trigger mode and the continuous trigger transmission method, meets the transmission requirement of low-delay service, and avoids the unreliable data transmission problem caused by competition.
In an optional embodiment, the scheduling frame not only carries information required for transmission of the uplink PPDU and/or the downlink PPDU within the service scheduling time period, but also marks information for continuing scheduling transmission of the next time period through a next scheduling frame (called a scheduling subframe) after the service scheduling time period is completed.
In an optional embodiment, the uplink and downlink scheduling transmission method based on the trigger mode realizes the transmission of uplink and downlink data based on time scheduling. The specific method comprises the following steps: an Access Point (AP) accesses a channel and obtains a transmission Opportunity (TXOP); then, the AP sends an uplink and downlink schedule Frame (also called Trigger Frame, TF) to one or more Stations (STAs); STAs which are not scheduled to transmit stop transmitting data within the continuous protection time specified by the scheduling frame; the AP sends the downlink PPDU to the predetermined receiving station STAs within a specified time, and meanwhile, the predetermined sending station STAs sends the uplink PPDU to the AP within a specified time, wherein the acknowledgement message (ACK) is also sent within the specified time.
In an optional embodiment, the scheduling frame carries not only information required for uplink response STAs to transmit an uplink PPDU (ul PPDU) but also information required for downlink receiving STAs to receive a PPDU. In the embodiment of the present invention, the scheduling frame based on the uplink and downlink scheduling includes information required for the downlink scheduling, for example, the continuous guard time indicated by the scheduling frame based on the uplink and downlink scheduling also includes the guard time of the downlink PPDU, and/or includes a parameter related to time allocation and mode control for transmission of the downlink PPDU. The persistent guard time is used as a guard time setting parameter for ensuring that the transmission scheduled in advance in time in the guard time interval is not interfered by other signals in the domain, and refers to the time required for transmitting the trigger-based downlink ppdu (dl ppdu) and/or the acknowledgement message (ACK) thereof, the trigger-based uplink ppdu (us ppdu) and/or the acknowledgement message (ACK) thereof, and the time required for an appropriate frame interval (xfs).
Fig. 6 is a schematic flowchart of data transmission according to a first alternative embodiment of the present invention, and as shown in fig. 6, an AP sends an uplink and downlink scheduling frame after acquiring a TXOP; according to a transmission mode defined in a scheduling frame, a predetermined STAs sends an uplink PPDU (UL PPDU) for response after a predetermined frame interval (xIFS), an AP sends an ACK reply receiving situation after receiving the uplink PPDU through the frame interval (xIFS), and sends a downlink PPDU (DL PPDU) to the predetermined STAs through the predetermined frame Interval (IFS), and the STAs respond to corresponding ACK after the frame interval (xIFS).
The frame intervals IFS1, IFS2, IF3, IFS4 in fig. 6 may take the same or different frame intervals, where the frame intervals may take short inter-frame space (SIFS) and other frame intervals consistent with scheduled transmissions. Sta.m1, sta.m2, …, and sta.mi respectively denote stations m1, …, and station mi, and sta.n1, sta.n2, …, and sta.nj respectively denote stations n1, …, and station nj. Ack.m1, …, ack.mi represent acknowledgements of the AP respectively for PPDU reception sent by stations m1, …, station i; n1, …, ack. ni represent acknowledgements of station m1, …, station i for the corresponding PPDU reception, respectively. The following description is similar.
Fig. 7 is a schematic diagram of a data transmission process according to a second alternative embodiment of the present invention, as shown in fig. 7, an AP sends an uplink scheduling frame and a downlink scheduling frame after acquiring a TXOP, sends a downlink PPDU to predetermined STAs through a predetermined time interval xfs (frame interval), and the STAs respond after the frame interval (xfs) according to a transmission mode defined in the scheduling frame; after the ACK of the downlink PPDU is sent, a frame interval (xfs) is passed, the predetermined STAs send the uplink PPDU to the AP, and the AP sends an ACK reply reception situation after receiving the uplink PPDU through the frame interval (xfs).
Continuous trigger transmission method
The continuous trigger transmission method is to schedule data transmission in time by continuously transmitting scheduling frames. The scheduling frame not only carries information required by transmission of the uplink PPDU and/or the downlink PPDU in the service scheduling time period, but also marks information for continuing scheduling transmission of the next time period through the next scheduling frame (called a scheduling subframe) after the service scheduling time period is finished, and can also contain type information of the scheduling subframe, and indicates whether the scheduling subframe is a scheduling frame only supporting data transmission of the uplink PPDU, a scheduling frame simultaneously supporting data transmission of the downlink PPDU and the uplink PPDU, or a scheduling frame only supporting data transmission of the downlink PPDU. In an optional embodiment, a guard time is reserved for the scheduling subframe in the scheduling time period, so that the scheduling subframe is transmitted not in a contention manner but according to a predetermined time. In the method, the continuous protection time is used as a protection time setting parameter, and comprises the time reserved for the transmission of a scheduling subframe and an appropriate frame interval (xIFS), and the time required for the transmission of a triggered downlink PPDU (DL PPDU) and/or an acknowledgement message (ACK) thereof, and/or the time required for the transmission of a triggered uplink PPDU (US PPDU) and/or an acknowledgement message (ACK) thereof.
Fig. 8 is a schematic flow chart of data transmission according to a third alternative embodiment of the present invention, and as shown in fig. 8, the scheduling frame marks information of continuing to perform a next scheduling time period through a scheduling subframe after the completion of the service scheduling time period, and indicates that the type of the scheduling subframe is a scheduling frame that supports data transmission of a downlink PPDU and an uplink PPDU at the same time; the persistent guard time carried by the scheduling frame includes, in addition to the time required by the trigger-based uplink ppdu (us ppdu) and the acknowledgement message (ACK) thereof, the time reserved for the scheduled subframe transmission and the appropriate frame interval (xfs).
Fig. 9 is a schematic flow chart of data transmission according to a fourth alternative embodiment of the present invention, as shown in fig. 9, a scheduling frame marks information of a next scheduling time period continued through a scheduling subframe after a completion of a scheduling time period of the service, and a persistent protection time carried by the scheduling frame includes, in addition to time required by trigger-based uplink ppdu (us ppdu) and an acknowledgement message (ACK) thereof, and downlink ppdu (dl ppdu) and an acknowledgement message (ACK) thereof, time reserved for transmission of the scheduling subframe and a proper frame interval (xfs).
Embodiments of the present invention also provide a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to perform the steps of any of the above-mentioned method embodiments when executed.
Alternatively, in the present embodiment, the above-mentioned computer-readable storage medium may be configured to store a computer program for executing the steps of:
s1, sending first transmission control information to a station, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and S2, transmitting data with the station according to the first transmission control information within the first transmission control duration.
Through the steps, as the first transmission control information is sent to the site, wherein the first transmission control information is used for indicating the site and/or the access point to perform data transmission according to the first transmission control information, the data transmission is performed with the site according to the first transmission control information within the first transmission control duration, and the data transmission is controlled through the transmission control information, the problem of unreliable data transmission in the related technology is solved, and the reliability of the data transmission is improved.
Optionally, the computer-readable storage medium is further arranged to store a computer program for performing the steps of:
s1, after the sending of the first transmission control information to the station, sending second transmission control information to the station, where a time when the station receives the second transmission control information is within the first transmission control duration, and the second transmission control information is used to instruct the station and/or the access point to perform data transmission according to the second transmission control information;
s2, performing data transmission with the station according to the second transmission control information within a second transmission control duration.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide another computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to perform the steps in any of the above-mentioned method embodiments when executed.
Alternatively, in the present embodiment, the above-mentioned computer-readable storage medium may be configured to store a computer program for executing the steps of:
s1, receiving first transmission control information sent by an access point, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and S2, performing data transmission with the access point according to the first transmission control information within the first transmission control duration.
Through the steps, as first transmission control information sent by an access point is received, the first transmission control information is used for indicating the site and/or the access point to carry out data transmission according to the first transmission control information; and transmitting data with the access point according to the first transmission control information within the first transmission control duration, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of data transmission is improved.
Optionally, the computer-readable storage medium is further arranged to store a computer program for performing the steps of:
s1, after receiving the first transmission control information sent by the access point, within the first transmission control duration, receiving second transmission control information sent by the access point, where the second transmission control information is used to instruct the station and/or the access point to perform data transmission according to the second transmission control information;
and S2, performing data transmission with the access point according to the second transmission control information within a second transmission control duration.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, sending first transmission control information to a station, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and S2, transmitting data with the station according to the first transmission control information within the first transmission control duration.
Through the steps, as the first transmission control information is sent to the site, wherein the first transmission control information is used for indicating the site and/or the access point to perform data transmission according to the first transmission control information, the data transmission is performed with the site according to the first transmission control information within the first transmission control duration, and the data transmission is controlled through the transmission control information, the problem of unreliable data transmission in the related technology is solved, and the reliability of the data transmission is improved.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
Embodiments of the present invention also provide another electronic device, comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, receiving first transmission control information sent by an access point, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and S2, performing data transmission with the access point according to the first transmission control information within the first transmission control duration.
Through the steps, as first transmission control information sent by an access point is received, the first transmission control information is used for indicating the site and/or the access point to carry out data transmission according to the first transmission control information; and transmitting data with the access point according to the first transmission control information within the first transmission control duration, so that the problem of unreliable data transmission in the related technology is solved, and the reliability of data transmission is improved.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (24)
1. A method of data transmission, comprising:
sending first transmission control information to a station, wherein the first transmission control information is used for indicating the station and/or an access point to carry out data transmission according to the first transmission control information;
and transmitting data with the station according to the first transmission control information within a first transmission control duration.
2. The method of claim 1, wherein after the sending the first transmission control information to the station, the method further comprises:
sending second transmission control information to the station, wherein the time when the station receives the second transmission control information is within the first transmission control duration, and the second transmission control information is used for instructing the station and/or the access point to perform data transmission according to the second transmission control information;
and transmitting data with the station according to the second transmission control information within a second transmission control duration.
3. The method of claim 2, wherein the second transmission control information is received by the station according to a continuation identifier included in the first transmission control information, wherein the continuation identifier is used for indicating continuation control of data transmission.
4. The method of claim 3, wherein the continuously identifying comprises: a type of the second transmission control information.
5. The method according to any of claims 2 to 4, wherein the first transmission control information and the second transmission control information each comprise at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
6. A method of data transmission, comprising:
receiving first transmission control information sent by an access point, wherein the first transmission control information is used for indicating a site and/or the access point to perform data transmission according to the first transmission control information;
and transmitting data with the access point according to the first transmission control information within a first transmission control duration.
7. The method of claim 6, wherein after receiving the first transmission control information sent by the access point, the method further comprises:
receiving second transmission control information sent by the access point within the first transmission control duration, wherein the second transmission control information is used for instructing the station and/or the access point to perform data transmission according to the second transmission control information;
and transmitting data with the access point according to the second transmission control information within a second transmission control duration.
8. The method of claim 7, wherein receiving the second transmission control information sent by the access point comprises:
and receiving the second transmission control information according to a continuous identifier included in the first transmission control information, wherein the continuous identifier is used for indicating continuous control of data transmission.
9. The method of claim 8, wherein the continuously identifying comprises: a type of the second transmission control information.
10. The method according to any of claims 6 to 9, wherein the first transmission control information and the second transmission control information each comprise at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
11. An apparatus for data transmission, comprising:
a first sending module, configured to send first transmission control information to a station, where the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and the first transmission module is used for carrying out data transmission with the station according to the first transmission control information within a first transmission control duration.
12. The apparatus of claim 11, further comprising:
a second sending module, configured to send second transmission control information to the station after sending the first transmission control information to the station, where a time for the station to receive the second transmission control information is within the first transmission control duration, and the second transmission control information is used to instruct the station and/or the access point to perform data transmission according to the second transmission control information;
and the second transmission module is used for carrying out data transmission with the station according to the second transmission control information within a second transmission control duration.
13. The apparatus of claim 12, wherein the second transmission control information is received by the station according to a continuation identifier included in the first transmission control information, wherein the continuation identifier is used for indicating continuation control of data transmission.
14. The apparatus according to claim 11 or 12, wherein the first transmission control information and the second transmission control information respectively comprise at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
15. An apparatus for data transmission, comprising:
a first receiving module, configured to receive first transmission control information sent by an access point, where the first transmission control information is used to instruct a station and/or the access point to perform data transmission according to the first transmission control information;
and the first transmission module is used for carrying out data transmission with the access point according to the first transmission control information within a first transmission control duration.
16. The apparatus of claim 15, further comprising:
a second receiving module, configured to receive, after receiving the first transmission control information sent by the access point, second transmission control information sent by the access point within the first transmission control duration, where the second transmission control information is used to instruct a station and/or the access point to perform data transmission according to the second transmission control information;
and a second transmission module, configured to perform data transmission with the access point according to the second transmission control information within a second transmission control duration.
17. The apparatus of claim 16, wherein receiving the second transmission control information sent by the access point comprises:
and receiving the second transmission control information according to a continuous identifier included in the first transmission control information, wherein the continuous identifier is used for indicating continuous control of data transmission.
18. The apparatus according to claim 16 or 17, wherein the first transmission control information and the second transmission control information respectively comprise at least one of:
a transmission control duration, a designated object for performing data transmission, a designated object for stopping data transmission, a transmission time for uplink data transmission of the designated object, a transmission time for downlink data transmission of the designated object, a transmission resource for uplink data transmission of the designated object, and a transmission resource for downlink data transmission of the designated object.
19. A data transmission system is characterized by comprising an access point and a station, wherein the access point is configured to send first transmission control information to the station, and the first transmission control information is used to instruct the station and/or the access point to perform data transmission according to the first transmission control information;
and the station is used for receiving the first transmission control information and carrying out data transmission with the access point according to the first transmission control information within a first transmission control duration.
20. The system of claim 19, further comprising:
the access point is further configured to send second transmission control information to the station after sending the first transmission control information to the station, where the second transmission control information is used to instruct the station and/or the access point to perform data transmission according to the second transmission control information;
the station is further configured to receive the second transmission control information, and perform data transmission with the access point according to the second transmission control information within a second transmission control duration.
21. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the method of any one of claims 1 to 5 when executed.
22. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the method of any one of claims 6 to 10 when executed.
23. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 5.
24. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 6 to 10.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071068A1 (en) * | 2021-10-25 | 2023-05-04 | 中兴通讯股份有限公司 | Data transmission method and apparatus, computer readable storage medium and electronic apparatus |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850220A (en) * | 2013-12-24 | 2016-08-10 | 华为技术有限公司 | Method and device for data transmission |
| CN106304356A (en) * | 2015-06-12 | 2017-01-04 | 联想(北京)有限公司 | Uplink data transmission method and WAP, website |
| CN106664704A (en) * | 2014-07-15 | 2017-05-10 | 高通股份有限公司 | Signaling techniques for UL MU MIMO/OFDMA transmission |
| CN107432036A (en) * | 2015-03-24 | 2017-12-01 | 华为技术有限公司 | Uplink multi-users transmit sending method, access point and the website of trigger frame |
| US20180020460A1 (en) * | 2015-11-03 | 2018-01-18 | Newracom, Inc. | Aggregated he control content in a-mpdu |
| CN107852629A (en) * | 2015-07-22 | 2018-03-27 | 夏普株式会社 | Terminal installation, base station apparatus, communication means and integrated circuit |
| US20180206263A1 (en) * | 2017-01-13 | 2018-07-19 | Asustek Computer Inc. | Method and apparatus for timing relationship between control channel and data channel in a wireless communication system |
| CN108632891A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | A kind of information transferring method and device |
| US20180338344A1 (en) * | 2015-11-19 | 2018-11-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Active period of a discontinuous reception cycle |
| US20190098662A1 (en) * | 2017-09-26 | 2019-03-28 | Kabushiki Kaisha Toshiba | Simultaneous transmit and receive operation in wlans |
| CN109996343A (en) * | 2017-12-29 | 2019-07-09 | 华为技术有限公司 | Multichannel combining transmission method and device in WLAN |
| CN110249676A (en) * | 2017-02-02 | 2019-09-17 | Lg 电子株式会社 | Indicate the method and its equipment of camp-on resource information |
-
2019
- 2019-10-31 CN CN201911056310.4A patent/CN112752350A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850220A (en) * | 2013-12-24 | 2016-08-10 | 华为技术有限公司 | Method and device for data transmission |
| CN106664704A (en) * | 2014-07-15 | 2017-05-10 | 高通股份有限公司 | Signaling techniques for UL MU MIMO/OFDMA transmission |
| CN107432036A (en) * | 2015-03-24 | 2017-12-01 | 华为技术有限公司 | Uplink multi-users transmit sending method, access point and the website of trigger frame |
| CN106304356A (en) * | 2015-06-12 | 2017-01-04 | 联想(北京)有限公司 | Uplink data transmission method and WAP, website |
| CN107852629A (en) * | 2015-07-22 | 2018-03-27 | 夏普株式会社 | Terminal installation, base station apparatus, communication means and integrated circuit |
| US20180020460A1 (en) * | 2015-11-03 | 2018-01-18 | Newracom, Inc. | Aggregated he control content in a-mpdu |
| US20180338344A1 (en) * | 2015-11-19 | 2018-11-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Active period of a discontinuous reception cycle |
| US20180206263A1 (en) * | 2017-01-13 | 2018-07-19 | Asustek Computer Inc. | Method and apparatus for timing relationship between control channel and data channel in a wireless communication system |
| CN110249676A (en) * | 2017-02-02 | 2019-09-17 | Lg 电子株式会社 | Indicate the method and its equipment of camp-on resource information |
| CN108632891A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | A kind of information transferring method and device |
| US20190098662A1 (en) * | 2017-09-26 | 2019-03-28 | Kabushiki Kaisha Toshiba | Simultaneous transmit and receive operation in wlans |
| CN109996343A (en) * | 2017-12-29 | 2019-07-09 | 华为技术有限公司 | Multichannel combining transmission method and device in WLAN |
Non-Patent Citations (1)
| Title |
|---|
| 邹虹;纪龙蛰;邢园丁;赵艳;张继军;: "基于FPGA多模时间同步触发系统的研究与设计", 测试技术学报, no. 02, 30 April 2016 (2016-04-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071068A1 (en) * | 2021-10-25 | 2023-05-04 | 中兴通讯股份有限公司 | Data transmission method and apparatus, computer readable storage medium and electronic apparatus |
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