CN114710251A - Communication method, system, device, equipment and storage medium - Google Patents
Communication method, system, device, equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The application discloses a communication method, a communication system, a communication device, a communication equipment and a storage medium, and belongs to the technical field of computers. The method is performed by a first device, the method comprising: transmitting indication information to the second device, the indication information indicating the number of transmission paths for transmitting the data frame; the second device is used for opening at least one receiving path matched with the indication information based on the indication information. The first device indicates the number of transmission paths for transmitting the data frame by using the indication information, and the second device can flexibly determine the number of the opened receiving paths based on the number of the transmission paths indicated by the indication information, thereby improving the flexibility of controlling the receiving paths.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a communication method, system, apparatus, device, and storage medium.
Background
With the development of computer technology, wireless local area networks have been widely deployed and applied. The STA (Station) is connected to an AP (Access Point) providing a wireless Access service to form a wireless local area network, and the STA and the AP can communicate with each other.
In the related art, when the STA needs to receive the data frame sent by the AP, each receiving path in the STA is default to be opened to receive the data frame sent by the AP, so that the flexibility of the default manner for opening each receiving path is poor.
Disclosure of Invention
The embodiment of the application provides a communication method, a communication system, a communication device, a communication equipment and a communication storage medium, which can improve the flexibility of opening a receiving channel. The technical scheme is as follows:
according to an aspect of embodiments of the present application, there is provided a communication method, performed by a first device, the method including:
transmitting indication information to a second device, the indication information indicating the number of transmission paths for transmitting data frames;
the second device is used for opening at least one receiving path matched with the indication information based on the indication information.
According to another aspect of the embodiments of the present application, there is provided another communication method, performed by a second device, the method including:
receiving indication information sent by a first device, wherein the indication information indicates the number of sending paths for sending data frames;
and opening at least one receiving path matched with the indication information based on the indication information.
According to another aspect of embodiments of the present application, there is provided a communication system including a first device and a second device;
the first device is used for sending indication information to a second device, wherein the indication information indicates the number of sending paths used for sending data frames;
the second device is used for opening at least one receiving path matched with the indication information based on the indication information.
According to another aspect of the embodiments of the present application, there is provided a communication apparatus configured to a first device, the apparatus including:
an information sending module, configured to send indication information to a second device, where the indication information indicates a number of sending paths used for sending a data frame;
the second device is used for opening at least one receiving path matched with the indication information based on the indication information.
According to another aspect of the embodiments of the present application, there is provided another communication apparatus configured to a second device, the apparatus including:
a receiving module, configured to receive indication information sent by a first device, where the indication information indicates a number of transmission paths used for sending a data frame;
and the control module is used for opening at least one receiving channel matched with the indication information based on the indication information.
According to another aspect of embodiments of the present application, there is provided an electronic device including a processor and a memory; the memory stores at least one program code for execution by the processor to implement the communication method as described in the above aspect.
According to another aspect of the embodiments of the present application, there is provided a chip, which includes a programmable logic circuit and/or program instructions, and when the chip is run on an electronic device, is used to implement the communication method of the above aspect.
According to another aspect of embodiments of the present application, there is provided a computer-readable storage medium storing at least one program code for execution by a processor to implement the communication method according to the above aspect.
According to another aspect of embodiments of the present application, there is provided a computer program product having at least one program code stored therein for execution by a processor to implement the communication method of the above aspect.
In the embodiment of the application, the first device and the second device can communicate with each other, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and then the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that the flexibility of controlling the reception paths is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced 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 illustrates a schematic diagram of a communication system provided by an exemplary embodiment of the present application;
FIG. 2 illustrates a flow chart of a method of communication provided by an exemplary embodiment of the present application;
FIG. 3 illustrates a flow chart of another method of communication provided by an exemplary embodiment of the present application;
FIG. 4 illustrates a flow chart of another method of communication provided by an exemplary embodiment of the present application;
FIG. 5 illustrates a flow chart of yet another method of communication provided by an exemplary embodiment of the present application;
FIG. 6 illustrates a flow chart of yet another method of communication provided by an exemplary embodiment of the present application;
FIG. 7 is a diagram illustrating a request frame provided by an exemplary embodiment of the present application;
FIG. 8 is a diagram illustrating a communication method provided by an exemplary embodiment of the present application;
fig. 9 is a block diagram illustrating a communication apparatus according to an exemplary embodiment of the present application;
fig. 10 is a block diagram illustrating another communication device provided in an exemplary embodiment of the present application;
fig. 11 is a block diagram illustrating a structure of another communication device according to an exemplary embodiment of the present application;
fig. 12 shows a block diagram of a terminal according to an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Reference herein to "at least one" means one or more and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. Referring to fig. 1, the communication system includes a first device 101 and a second device 102. The first device 101 and the second device 102 are connected via a wireless network, the first device 101 and the second device 102 can communicate with each other, for example, the first device 101 is a sender, the second device 102 is a receiver, the first device 101 is configured with a sending path for sending data frames, and the second device 102 is configured with a receiving path for receiving data frames.
In this embodiment, before sending a data frame to the second device 102, the first device 101 sends, to the second device 102, indication information indicating the number of transmission paths for sending the data frame, and when the second device 102 receives the indication information, at least one reception path matching the indication information is opened based on the indication information, so that the number of reception paths to be opened is flexibly determined based on the number of transmission paths indicated by the indication information, thereby improving flexibility in controlling the reception paths.
In one possible implementation manner, the first device 101 is an AP (Access Point), and the second device 102 is an STA (Station). The AP is used for providing a wireless network access service, and is a creator of a wireless network. The STA is configured to access a wireless network by connecting to an AP. An AP may be simultaneously connected to multiple STAs, and a STA may be connected to an AP at the same time. The AP is connected to one or more STAs to form a BSS (Basic service set), which is also a wireless local area network. Optionally, the AP is a wireless router or a network bridge providing a wireless network, and the STA is a terminal accessing the wireless network, for example, the terminal includes a notebook computer, a mobile phone, a tablet computer, an intelligent sound box, a vehicle-mounted terminal, an intelligent watch, an intelligent television, an intelligent electric lamp, a treadmill, an intelligent refrigerator, and the like, which is not limited in this embodiment of the present application.
It should be noted that the first device 101 and the second device 102 may also execute the steps in the communication method provided in the following method embodiments, and detailed description is not given here.
It should be noted that, in the embodiment of the present application, only one first device 101 and one second device 102 are taken as an example for description. In another embodiment, the communication system includes a plurality of first devices and a plurality of second devices, one first device may be connected to the plurality of second devices, one second device may be connected to one AP at the same time, and in each pair of the first device and the second device connected to each other, the first device may send indication information to the second device, so that the second device controls a reception path based on the indication information.
Fig. 2 shows a flowchart of a communication method provided in an exemplary embodiment of the present application, referring to fig. 2, the method is interactively performed by a first device and a second device, and the method includes:
201. the first device sends the indication information to the second device.
The indication information indicates the number of transmission paths for transmitting the data frame, which is also called the number of streams of the data frame. The data frame is a data frame to be sent by the first device to the second device, and the data frame may be any type of data frame, for example, the data frame is a data frame that the other device requests the first device to forward to the second device, or in a case where the first device is an AP and the second device is an STA, the data frame is a wireless broadcast management frame that the AP sends to the STA and is used for managing a BSS.
The first device is configured with a plurality of transmit lanes, which can be used to transmit any data frame. The transmit path is provided by baseband radio frequency circuitry in the first device, the baseband radio frequency circuitry capable of transmitting and receiving wireless signals. In addition, the first device is also provided with a plurality of receiving paths, and in the embodiment of the present application, taking the transmitting path in the first device as an example, the first device can control the opening and closing of the transmitting path and can control the number of the opened transmitting paths.
After acquiring a data frame to be sent, a first device determines the number of sending paths for sending the data frame, generates indication information for indicating the number, and sends the indication information to a second device for receiving the data frame before sending the data frame.
202. And the second equipment opens at least one receiving path matched with the indication information based on the indication information.
The second equipment receives the indication information sent by the first equipment, determines the number of the sending paths indicated by the indication information, and opens at least one receiving path matched with the indication information based on the indication information. Wherein, the at least one receiving path matched with the indication information means that the number of the at least one receiving path is matched with the indication information.
The second device is configured with a plurality of receive lanes, the receive lanes capable of being used to receive any one of the data frames. For example, the at least one receiving path opened by the second device may be used for receiving the data frame transmitted by the first device. The receive path is provided by baseband radio frequency circuitry in the second device, the baseband radio frequency circuitry capable of transmitting and receiving wireless signals. In addition, the second device is also configured with a plurality of sending paths, and in the embodiment of the present application, taking the receiving path in the second device as an example, the second device can control the opening and closing of the receiving path and can control the number of the opened receiving paths.
In the embodiment of the application, communication can be performed between the first device and the second device, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that flexibility of controlling the reception paths is improved.
Fig. 3 shows a flowchart of another communication method provided in an exemplary embodiment of the present application, and referring to fig. 3, the method is interactively performed by a first device and a second device, and in the method, the indication information is first indication information. The method comprises the following steps:
301. the first device transmits the first indication information to the second device when the number of transmission paths is one.
After acquiring a data frame to be sent, the first device determines the number of sending paths for sending the data frame. If the number of the transmission paths for transmitting the data frame is one, first indication information is generated, and the first indication information is transmitted to the second device before the data frame is transmitted to the second device, wherein the first indication information indicates that the number of the transmission paths for transmitting the data frame is one.
In the case where the number of transmission paths for transmitting a data frame is one, the data frame is also referred to as a single stream data frame.
Optionally, the first device determines the number of transmission passes for transmitting the data frame according to an adaptive rate control algorithm and channel conditions. For example, the first device may use fewer transmission paths to transmit the data frame when the channel quality is good, and may use more transmission paths to transmit the data frame when the channel quality is poor.
302. And the second equipment opens at least one receiving path matched with the current receiving performance parameter under the condition that the indication information is the first indication information.
The second device receives the indication information sent by the first device, if the indication information is the first indication information, it indicates that the number of sending paths for sending the data frame is one, and as long as at least one receiving path is opened, it can be guaranteed that the data frame is successfully received. Wherein, the at least one receiving path matched with the receiving performance parameter means that the number of the at least one receiving path is matched with the receiving performance parameter. That is, in the case that there is no additional requirement for the number of receiving paths, the influence of the current receiving performance parameter of the second device on the receiving condition is additionally considered.
Wherein the reception performance parameter is used to indicate the reception capability of the second device. Optionally, the second device may open fewer receive paths when the receiving capability indicated by the receiving performance parameter of the second device is stronger, and may open more receive paths when the receiving capability indicated by the receiving performance parameter of the second device is weaker. For example, the reception performance parameter is the reception sensitivity of the second device or the like. For example, the first device is an AP, the second device is an STA, the first device provides a wireless signal for the second device, the closer the distance between the second device and the first device is, the stronger the receiving capability of the second device is, and the farther the distance between the second device and the first device is, the weaker the receiving capability of the second device is.
In the embodiment of the application, under the condition that the number of the sending paths is one, at least one receiving path matched with the current receiving performance parameter is opened, so that not only can the data frame be normally received by using the at least one receiving path be ensured, but also the number of the opened receiving paths can be flexibly determined according to the current receiving performance parameter, and the accurate control of the receiving paths is realized.
In a possible implementation manner, in the case that the indication information is the first indication information, if the reception performance parameter is greater than the target threshold, the second device opens a reception path. And under the condition that the indication information is first indication information, if the receiving performance parameter is not larger than the target threshold, the second equipment opens at least two receiving paths. Optionally, the target threshold is a threshold preset by the second device, and the size of the target threshold is not limited in this embodiment of the application.
And if the receiving performance parameter is greater than the target threshold, which indicates that the current receiving capability of the second device is stronger, the second device only needs to open one receiving path among the configured multiple receiving paths, so that the other receiving paths are kept in a closed state, and power consumption brought by the other receiving paths can be saved while the data frame can be normally received. If the receiving performance parameter is not greater than the target threshold, which indicates that the current receiving capability of the second device is weak, the second device opens at least two receiving paths in the configured multiple receiving paths, so that the receiving efficiency is improved while the data frame can be normally received.
In the embodiment of the present application, when the number of the transmission paths for transmitting the data frame is one, the second device may flexibly control the number of the reception paths to be opened according to the current reception performance parameter, thereby achieving a reasonable balance between the reception efficiency and the reception power consumption.
In one possible implementation, the second device is configured with a plurality of receiving paths, and only one receiving path is opened by default and the other receiving paths are closed without receiving data frames. When the second device receives the first indication information sent by the first device, it indicates that the first device is about to use a sending path to send a data frame to the second device, and if the current receiving performance parameter of the second device is greater than the target threshold, the second device does not need to start other receiving paths, and only one receiving path is continuously started. And if the current receiving performance parameter of the second equipment is not larger than the target threshold, the second equipment reopens at least one receiving path in the closed receiving paths so as to enable at least two receiving paths to be in an open state.
Fig. 4 shows a flowchart of another communication method provided in an exemplary embodiment of the present application, and referring to fig. 4, the method is interactively performed by a first device and a second device, and in the method, the indication information is second indication information. The method comprises the following steps:
401. the first device transmits the second instruction information to the second device when the number of transmission paths is plural.
After the first device obtains the data frame to be sent, the number of sending paths used for sending the data frame is determined. If the number of the transmission paths for transmitting the data frame is multiple, second indication information is generated, and the second indication information is transmitted to the second device before the data frame is transmitted to the second device, wherein the second indication information indicates that the number of the transmission paths for transmitting the data frame is multiple.
The plurality of strips refers to two or more, for example, three or four strips. In the case where the number of transmission paths for transmitting a data frame is plural, the data frame is also referred to as a "multi-stream data frame".
Wherein the second indication information is different from the first indication information, thereby distinguishing the first indication information from the second indication information. Optionally, the first indication information is a first value, the second indication information is a second value, and the first value and the second value are different, for example, the first value is 1 and the second value is 0. Optionally, the first indication information is a first character, the second indication information is a second character, and the first character and the second character are different. The embodiment of the present application does not limit specific contents of the first indication information and the second indication information.
402. And the second equipment opens each receiving path under the condition that the indication information is the second indication information.
The second device receives the indication information sent by the first device, if the indication information is the second indication information, the number of the sending paths used for sending the data frame is multiple, and in order to ensure that the data frame can be successfully received, in this case, the second device opens each receiving path in the multiple configured receiving paths.
In one possible implementation, the second device is configured with a plurality of receiving paths, and only one receiving path is opened by default and the other receiving paths are closed without receiving data frames. When the second device receives the second indication information sent by the first device, which indicates that the first device is about to use multiple sending paths to send data frames to the second device, the second device restarts all closed receiving paths, so that each receiving path is in a started state.
In the embodiment of the application, communication can be performed between the first device and the second device, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that flexibility of controlling the reception paths is improved.
And in addition, under the condition that the number of the sending paths is one, at least one receiving path matched with the current receiving performance parameters is opened, so that the data frames can be normally received by using the at least one receiving path, the number of the opened receiving paths can be flexibly determined according to the current receiving performance parameters, and the accurate control of the receiving paths is realized. And in the case that the number of the transmission paths is multiple, correspondingly opening each receiving path so as to ensure that the data frame is normally received.
Fig. 5 shows a flowchart of another communication method provided by an exemplary embodiment of the present application, and referring to fig. 5, the method is interactively performed by a first device and a second device, and in the method, the indication information is the number of transmission paths. The method comprises the following steps:
501. the first device determines indication information indicating that the number of transmission paths for transmitting the data frame is a first value.
After the first device obtains the data frame to be sent, the number of sending paths used for sending the data frame is determined to be a first numerical value, and the first numerical value is determined to be indication information. Therefore, the indication information can indicate the precise number of transmission paths.
For example, if the number of transmission paths is 2, the indication information indicates that the number of transmission paths for transmitting the data frame is 2, and if the number of transmission paths is 3, the indication information indicates that the number of transmission paths for transmitting the data frame is 3.
502. The first device sends the indication information to the second device.
The first device sends the indication information to the second device before sending the data frame to the second device.
503. And the second equipment opens the receiving path matched with the first number under the condition that the indication information indicates that the number of the transmitting paths is the first numerical value.
The number of the second equipment opening the receiving channels is the first value. The second device receives indication information sent by the first device, the indication information indicates that the number of sending paths is a first numerical value, and then the second device opens the receiving paths with the number of the first numerical value in the configured multiple receiving paths according to the first numerical value, and keeps other receiving paths in a closed state.
For example, if the number of the transmission paths is 2, the second device opens 2 of the plurality of configured reception paths. For another example, if the number of the transmission paths is 3, the second device opens 3 of the plurality of configured reception paths.
It should be noted that, in the embodiments of the present application, only the number of receiving lanes configured by the second device is taken as an example, and is not smaller than the number of transmitting lanes for transmitting data frames. In another embodiment, if the number of transmission paths for transmitting the data frame is greater than the number of reception paths configured by the second device, the second device may directly turn on each reception path.
In the embodiment of the application, communication can be performed between the first device and the second device, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that flexibility of controlling the reception paths is improved.
And under the condition that the indication information indicates that the number of the sending paths is the first value, the second device opens the receiving paths to be the first value, and keeps other receiving paths in a closed state, so that the data frames can be normally received, meanwhile, the power consumption brought by other receiving paths can be saved, and the accurate control of the receiving paths is realized.
Fig. 6 is a flowchart illustrating still another communication method provided in an exemplary embodiment of the present application, referring to fig. 6, where the method is performed by a first device and a second device interactively, and in the method, a request frame sent by the first device to the second device carries indication information, and the method includes:
601. the first device sends a request frame carrying indication information to the second device.
After acquiring a data frame to be sent to a second device, a first device needs to send a request frame to the second device before sending the data frame to the second device, where the request frame is used to request to send the data frame to the second device. For example, the Request frame is RTS (Request to send).
In this embodiment, the first device determines the number of transmission paths for transmitting the data frame, and generates a request frame carrying indication information indicating the number of transmission paths for transmitting the data frame based on the number of transmission paths. And the first equipment sends a request frame carrying the indication information to the second equipment.
In one possible implementation, the request frame includes a plurality of fields including a target field, and the first device populates the target field of the request frame with the indication information.
After acquiring a data frame to be sent to a second device, a first device determines the number of sending paths for sending the data frame, generates indication information for indicating the number, and fills the indication information in a target field of a request frame, so that the indication information is sent to the second device while the request frame is sent. The process of generating the indication information is the same as that of step 301, step 401, or step 501, and is not described in detail here.
The target field may be any field in the request frame. For example, the request frame includes a Retry field (Retry), which is used to record the number of times of repeatedly sending the request frame, and since the number of times of repeatedly sending the request frame does not affect the processing manner of the request frame by the second device, the Retry field is multiplexed by the first device as the target field, and the Retry field is filled with the indication information.
Fig. 7 is a schematic diagram of a request Frame according to an embodiment of the present application, and as shown in fig. 7, the request Frame includes 11 fields, where the 11 fields are a 2-bit protocol version (protocol version) field, a 2-bit Type (Type) field, a 4-bit Subtype (Subtype) field, a 1-bit to distributed system (ToDS) field, a 1-bit from distributed system (from distribution system, from ds) field, a 1-bit More fragments (More fragments) field, a 1-bit Retry (Retry) field, a 1-bit Power Management (Power Management) field, a 1-bit More Data (More Data) field, a 1-bit Protected frames (Protected frames) field, and a 1-bit High Throughput Control (High Throughput) field. The first device populates the retry field with the indication information. For example, when the number of transmission lanes for transmitting a data frame is 1, the first device fills 1 in the retry field, and when the number of transmission lanes for transmitting a data frame is multiple, the first device fills 0 in the retry field.
It should be noted that, in the embodiment of the present application, only the retry field is used as an example to be described, and in another embodiment, the first device may also fill the other fields with the indication information, which is not limited in the embodiment of the present application.
602. The second device receives the request frame sent by the first device.
603. And the second equipment acquires the indication information carried by the request frame and opens at least one receiving path matched with the indication information based on the indication information.
And after receiving the request frame sent by the first equipment, the second equipment acquires the indication information in the request frame and opens at least one receiving path matched with the indication information. The process of opening at least one receiving path is the same as the above step 302, step 402, or step 503, and is not described in detail here.
In a possible implementation manner, the first device fills the target field in the request frame, and the second device obtains the indication information in the target field in the request frame. For example, the target field is a retry field in the request frame, etc.
604. The second device transmits a response frame corresponding to the request frame to the first device.
After receiving the request frame sent by the first device, the second device generates a response frame corresponding to the request frame and sends the response frame to the first device, wherein the response frame indicates that the data frame is allowed to be sent to the second device. For example, the response frame is CTS (Clear to send, transmission is permitted).
It should be noted that, in the embodiment of the present application, the step 603 is performed first, and then the step 604 is performed as an example. In another embodiment, the second device may perform step 604 before performing step 603, or perform step 603 and step 604 simultaneously.
605. The first device transmits a data frame to the second device in response to the response frame.
And the first device receives a response frame sent by the second device, wherein the response frame indicates that the second device allows the first device to send the data frame to the second device, and then the first device sends the data frame to the second device.
606. And the second device receives the data frame sent by the first device through the opened at least one receiving path.
In the embodiment of the application, the first device adds the indication information for indicating the number of the transmission paths in the request frame, so that the second device knows the number of the transmission paths used by the first device to transmit the data frame in advance, that is, knows the number of streams of the data frame to be transmitted by the first device in advance.
In another possible implementation manner, the second device is configured with a plurality of receiving paths, and only one receiving path is opened by default and other receiving paths are closed under the condition that a data frame does not need to be received. After the second device receives the data frame sent by the first device through the opened at least one receiving path, if the number of the currently opened receiving paths is one, the second device continues to keep one receiving path in the opened state, and if the number of the currently opened receiving paths is multiple, the second device only keeps one receiving path in the opened state in the opened multiple receiving paths, and closes other receiving paths.
In the embodiment of the application, communication can be performed between the first device and the second device, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that flexibility of controlling the reception paths is improved.
And the first device adds the indication information for indicating the number of the transmission paths in the request frame, so that the second device can know the number of the transmission paths used by the first device for transmitting the data frame in advance, namely know the number of streams of the data frame to be transmitted by the first device in advance.
After ieee802.11n standard (a Wireless transmission standard protocol), Wi-Fi (Wireless Fidelity) protocol provides MIMO (Multi-input Multi-output, dual-antenna or Multi-antenna transmission) technology, and compared with SISO (Single-input Single-output ) technology, MIMO technology can improve transmission rate of a physical layer without increasing communication bandwidth, thereby improving system throughput, and more devices with Wi-Fi transmission capability adopt MIMO technology.
However, MIMO technology requires a Wi-Fi chip to provide a plurality of baseband and rf circuits for transmitting and receiving Wi-Fi wireless signals, which increases system power consumption while increasing throughput. For convenience of explanation, the number of transmission paths for transmitting data frames is hereinafter referred to as the number of streams of data frames. For example, the STA is configured with multiple receiving paths, the STA defaults to open all the receiving paths, if the AP sends a single stream data frame to the STA, only one receiving path is needed to normally receive the single stream data frame at this time, and all the receiving paths are actually in an open state, thereby generating unnecessary power consumption overhead.
In the embodiment of the present application, a dynamic SMPS (Spatial Multiplexing power save) technology is provided, and a scheme for dynamically controlling the opening and closing of a receiving path is provided, and a stream number of a data frame to be sent is notified to an STA through indication information carried by a request frame, so that the STA flexibly controls the number of the receiving paths to be opened based on the stream number of the data frame, thereby achieving an effect of reducing power consumption. The AP sets an SCB (Stream Count Bit) field in the request frame, where the SCB field may be a multiplexed original field, and the SCB field is used to indicate whether a data frame to be sent by the AP is a single Stream or a multi-Stream, and after receiving the request frame, the STA identifies the SCB field, determines whether the data frame is a single Stream or a multi-Stream, and determines how many receiving paths need to be opened according to the number of streams. The specific process is shown in fig. 7.
Fig. 8 is a schematic diagram of a communication method according to an embodiment of the present application, and as shown in fig. 8, an AP carries an SCB field in a request frame, where the SCB field is equal to 1, which indicates that a data frame to be transmitted by the AP is a single stream, and an STA does not need to open all receiving paths, but only opens one receiving path. When the SCB field is equal to 0, it indicates that the data frame to be transmitted by the AP is a multi-stream, and the STA needs to open all receiving channels.
The operations performed by the AP are as follows: the AP enters a dynamic mode of an SMPS technology, determines the value of an SCB field according to the number of streams of a data frame before sending the data frame to the STA, carries the value in a request frame and sends the request frame to the STA.
The operations performed by the STA are as follows: the STA receives the data frame sent by the AP, analyzes the data frame to obtain the value of the SCB field, and sends a response frame to the AP. If SCB field equals 0, all receiving paths are opened, multi-stream mode is started, and data frames sent by AP are received. If the SCB field is equal to 1, only one receiving path is opened, other receiving paths are not opened, the single stream mode is started, and the data frame sent by the AP is received.
It should be noted that, as shown in fig. 8, in the case that the SCB field is equal to 1, the data frame sent by the AP to the STA is a single stream. However, when the SCB field is equal to 0, the data frame sent by the AP to the STA may be a single stream or a multi-stream, because the AP notifies the STA that the data frame is a multi-stream, but the AP may select to send a multi-stream data frame to the STA, or may select to send a single-stream data frame to the STA, and only needs to ensure that the STA can normally receive the data frame.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Referring to fig. 9, a block diagram of a communication device according to an exemplary embodiment of the present application is shown. The communication device is configured on a first device, and the communication device comprises:
an information sending module 901, configured to send indication information to the second device, where the indication information indicates the number of sending paths used for sending the data frame;
the second device is used for opening at least one receiving path matched with the indication information based on the indication information.
In the embodiment of the application, communication can be performed between the first device and the second device, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that flexibility of controlling the reception paths is improved.
In one possible implementation, referring to fig. 9, the information sending module 901 includes:
a first sending unit 911, configured to send first indication information to a second device when the number of sending paths is one, where the first indication information indicates that the number of sending paths is one, and the second device is configured to open at least one receiving path matched with the current receiving performance parameter when the indication information is the first indication information;
a second sending unit 921, configured to send, to the second device, second indication information indicating that the number of sending lanes is multiple if the number of sending lanes is multiple, where the second device is configured to open each receiving lane if the indication information is the second indication information.
In a possible implementation manner, the indication information indicates that the number of sending paths is a first value, and the number of receiving paths that the second device opens is the first value.
In one possible implementation, referring to fig. 9, the information sending module 901 includes:
a third sending unit 931, configured to send a request frame carrying indication information to a second device, where the request frame is used to request to send a data frame to the second device, the second device is configured to obtain the indication information carried by the request frame, and open at least one receiving path matched with the indication information based on the indication information, and the second device is further configured to send a response frame corresponding to the request frame to the first device;
the device still includes:
a data sending module 902, configured to send a data frame to the second device in response to the response frame.
In one possible implementation, referring to fig. 9, the apparatus further includes:
a padding module 903, configured to pad the indication information in the target field in the request frame, where the second device is configured to obtain the indication information in the target field in the request frame.
In a possible implementation manner, the first device is an access point AP, the AP is configured to provide a wireless network access service, and the second device is a station STA, and the STA is configured to access a wireless network through connecting the AP.
Referring to fig. 10, a block diagram of another communication device according to an exemplary embodiment of the present application is shown. The communication device includes:
a receiving module 1001, configured to receive indication information sent by a first device, where the indication information indicates a number of transmission paths used for sending a data frame;
and the control module 1002 is configured to open at least one receiving path matched with the indication information based on the indication information.
In the embodiment of the application, communication can be performed between the first device and the second device, the transmission path can be used for transmitting data frames, the reception path can be used for receiving data frames, the first device can transmit indication information to the second device, the indication information can indicate the number of the transmission paths for transmitting the data frames, and the second device can flexibly determine the number of the opened reception paths based on the number of the transmission paths indicated by the indication information, so that flexibility of controlling the reception paths is improved.
In one possible implementation, referring to fig. 11, the control module 1002 includes:
a first control unit 1012, configured to, if the indication information is first indication information, open at least one receiving path that matches the current receiving performance parameter, where the first indication information indicates that the number of sending paths is one;
a second control unit 1022, configured to open each receiving path if the indication information is second indication information, where the second indication information indicates that the number of the sending paths is multiple.
In one possible implementation, referring to fig. 11, the first control unit 1012 is configured to:
under the condition that the indication information is first indication information, if the receiving performance parameter is larger than a target threshold value, a receiving path is opened;
and under the condition that the indication information is first indication information, if the receiving performance parameter is not greater than the target threshold value, opening at least two receiving paths.
In one possible implementation, referring to fig. 11, the indication information indicates that the number of sending paths is a first value, and the number of receiving paths that the second device opens is the first value.
In a possible implementation manner, referring to fig. 11, a receiving module 1001 is configured to receive a request frame sent by a first device, and acquire indication information carried by the request frame, where the request frame is used to request to send a data frame to a second device;
the device also includes:
a sending module 1003, configured to send a response frame corresponding to the request frame to the first device, where the first device is configured to send a data frame to the second device in response to the response frame.
In a possible implementation manner, the receiving module 1001 is configured to obtain, in a request frame, indication information in a target field.
In a possible implementation manner, the first device is an access point AP, the AP is configured to provide a wireless network access service, and the second device is a station STA, and the STA is configured to access a wireless network through connecting the AP.
It should be noted that, in the apparatus provided in the foregoing embodiment, when the functions of the apparatus are implemented, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the electronic device may be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
The embodiment of the application provides an electronic device, which comprises a processor and a memory; the memory stores at least one program code for execution by the processor to implement the communication method as provided by the various method embodiments described above.
In some embodiments, the electronic device is a terminal, please refer to fig. 12, which shows a block diagram of a terminal according to an exemplary embodiment of the present application. In some embodiments, the terminal 1200 is a smartphone, tablet, wearable device, or the like capable of accessing a wireless local area network as a wireless station. The terminal 1200 in the present application includes at least one or more of the following components: a processor 1210, memory 1220, and at least two wireless links 1230.
In some embodiments, processor 1210 includes one or more processing cores. The processor 1210 connects various parts within the entire terminal 1200 using various interfaces and lines, performs various functions of the terminal 1200 and processes data by running or executing program codes stored in the memory 1220 and calling data stored in the memory 1220. In some embodiments, processor 1210 is implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 1210 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Neural-Network Processing Unit (NPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the NPU is used for realizing an Artificial Intelligence (AI) function; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 1210, but may be implemented by a single chip.
In some embodiments, the processor 1210 is configured to control the operation of at least two Wireless links 1230, and accordingly, the processor 1210 is a processor integrated with a Wireless Fidelity (Wi-Fi) chip. Wherein, the Wi-Fi chip is a chip with double Wi-Fi processing capacity. For example, the Wi-Fi chip is a Dual Band Dual Current (DBDC) chip, a Dual Band Simultaneous (DBS) chip, or the like.
In some embodiments, the Memory 1220 includes a Random Access Memory (RAM), and in some embodiments, the Memory 1220 includes a Read-Only Memory (ROM). In some embodiments, the memory 1220 includes a non-transitory computer-readable medium. The memory 1220 may be used for storing program codes. The memory 1220 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like; the storage data area may store data (such as audio data, a phonebook) created according to the use of the terminal 1200, and the like.
In some embodiments, memory 1220 has stored therein different reception schemes for receiving beacon frames for wireless link 1230. As well as the identity of the access node to which the different wireless links 1230 are connected, the identity of the wireless links 1230, etc.
The at least two wireless links 1230 are used to connect different Access Points (APs). And receiving downlink data issued by the AP. Wherein, the different access nodes are the access nodes in the same router or the access nodes in different routers.
In some embodiments, a display screen is also included in terminal 1200. A display screen is a display component for displaying a user interface. In some embodiments, the display screen is a display screen with a touch function, and a user can perform a touch operation on the display screen by using any suitable object such as a finger, a touch pen, and the like. In some embodiments, the display screen is typically disposed on a front panel of the terminal 1200. In some embodiments, the display screen is designed as a full-face screen, curved screen, contoured screen, double-face screen, or folded screen. In some embodiments, the display screen is further designed to be a combination of a full-face screen and a curved-face screen, a combination of a special-shaped screen and a curved-face screen, and the like, which is not limited by the embodiment.
In addition, those skilled in the art will appreciate that the configuration of terminal 1200 illustrated in the above-described figures is not meant to be limiting with respect to terminal 1200, as terminal 1200 may include more or less components than those shown, or some components may be combined, or a different arrangement of components. For example, the terminal 1200 further includes a microphone, a speaker, an input unit, a sensor, an audio circuit, a module, a power supply, a bluetooth module, and other components, which are not described herein again.
The present application also provides a computer-readable storage medium storing at least one program code, which is loaded and executed by the processor to implement the communication method as shown in the above embodiments.
The present application also provides a chip comprising programmable logic circuits and/or program instructions for implementing the communication method as shown in the various embodiments above when the chip is run on an electronic device.
The present application also provides a computer program product having at least one program code stored therein for execution by a processor to implement the communication method as shown in the various embodiments above.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps in the communication method implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing associated hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc. The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (19)
1. A method of communication, performed by a first device, the method comprising:
transmitting indication information to a second device, the indication information indicating the number of transmission paths for transmitting data frames;
the second device is used for opening at least one receiving path matched with the indication information based on the indication information.
2. The method of claim 1, wherein the sending the indication information to the second device comprises:
when the number of the transmission paths is one, sending first indication information to the second device, wherein the first indication information indicates that the number of the transmission paths is one, and the second device is used for opening at least one reception path matched with the current reception performance parameter when the indication information is the first indication information;
and sending second indication information to the second device when the number of the sending paths is multiple, wherein the second indication information indicates that the number of the sending paths is multiple, and the second device is used for opening each receiving path when the indication information indicates that the number of the sending paths is the second indication information.
3. The method of claim 1, wherein the indication information indicates that the number of the transmission paths is a first value, and the number of the reception paths that the second device is turned on is the first value.
4. The method according to any of claims 1-3, wherein said sending the indication information to the second device comprises:
sending a request frame carrying the indication information to the second device, where the request frame is used to request sending of the data frame to the second device, the second device is used to obtain the indication information carried by the request frame, and based on the indication information, at least one receiving path matched with the indication information is opened, and the second device is further used to send a response frame corresponding to the request frame to the first device;
the method further comprises the following steps:
transmitting the data frame to the second device in response to the response frame.
5. The method of claim 4, wherein before the sending the request frame carrying the indication information to the second device, the method further comprises:
and filling the indication information in a target field in the request frame, wherein the second device is used for acquiring the indication information in the target field in the request frame.
6. A method according to any of claims 1-3, wherein the first device is an access point, AP, the AP being configured to provide wireless network access services, and the second device is a station, STA, configured to access a wireless network by connecting to the AP.
7. A method of communication, performed by a second device, the method comprising:
receiving indication information sent by a first device, wherein the indication information indicates the number of sending paths for sending data frames;
and opening at least one receiving path matched with the indication information based on the indication information.
8. The method according to claim 7, wherein the opening, based on the indication information, at least one receiving path matching the indication information comprises:
under the condition that the indication information is first indication information, opening at least one receiving channel matched with the current receiving performance parameters, wherein the first indication information indicates that the number of the sending channels is one;
and opening each receiving path under the condition that the indication information is second indication information, wherein the second indication information indicates that the number of the sending paths is multiple.
9. The method according to claim 8, wherein the opening at least one receiving path matching with the current receiving performance parameter if the indication information is the first indication information comprises:
if the indication information is the first indication information, if the receiving performance parameter is larger than a target threshold value, starting a receiving path;
and if the indication information is the first indication information, opening at least two receiving paths if the receiving performance parameter is not greater than the target threshold.
10. The method of claim 7, wherein the indication information indicates that the number of the transmission paths is a first value, and the number of the reception paths that the second device is turned on is the first value.
11. The method according to any one of claims 7-10, wherein the receiving the indication information sent by the first device comprises:
receiving a request frame sent by the first device, and acquiring the indication information carried by the request frame, wherein the request frame is used for requesting to send the data frame to the second device;
the method further comprises the following steps:
and sending a response frame corresponding to the request frame to the first device, wherein the first device is used for responding to the response frame and sending the data frame to the second device.
12. The method of claim 11, wherein the obtaining the indication information carried by the request frame comprises:
and in the request frame, acquiring the indication information in a target field.
13. The method of any of claims 7-10, wherein the first device is an Access Point (AP) configured to provide wireless network access services, and wherein the second device is a Station (STA) configured to access a wireless network by connecting to the AP.
14. A communication system, characterized in that the communication system comprises a first device and a second device;
the first device is used for sending indication information to a second device, wherein the indication information indicates the number of sending paths used for sending data frames;
and the second equipment is used for opening at least one receiving path matched with the indication information based on the indication information.
15. An apparatus for communication, configured on a first device, the apparatus comprising:
an information sending module, configured to send indication information to a second device, where the indication information indicates a number of sending paths used for sending a data frame;
the second device is used for opening at least one receiving path matched with the indication information based on the indication information.
16. An apparatus for communication, configured to a second device, the apparatus comprising:
a receiving module, configured to receive indication information sent by a first device, where the indication information indicates a number of transmission paths used for sending a data frame;
and the control module is used for opening at least one receiving channel matched with the indication information based on the indication information.
17. An electronic device, comprising a processor and a memory; the memory stores at least one program code for execution by the processor to implement the communication method of any one of claims 1 to 6 or to implement the communication method of any one of claims 7 to 13.
18. A computer-readable storage medium, characterized in that the storage medium stores at least one program code for execution by a processor to implement the communication method of any one of claims 1 to 6 or to implement the communication method of any one of claims 7 to 13.
19. A chip comprising programmable logic circuits and/or program instructions for implementing a communication method as claimed in any one of claims 1 to 6 or a communication method as claimed in any one of claims 7 to 13 when the chip is run on an electronic device.
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