CN110602223B - Point-to-point equipment and search matching method thereof - Google Patents
Point-to-point equipment and search matching method thereof Download PDFInfo
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- CN110602223B CN110602223B CN201910881667.XA CN201910881667A CN110602223B CN 110602223 B CN110602223 B CN 110602223B CN 201910881667 A CN201910881667 A CN 201910881667A CN 110602223 B CN110602223 B CN 110602223B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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Abstract
A peer-to-peer device and a search matching method thereof, the method comprising: the wireless communication chip receives a point-to-point connection request sent by other equipment; detecting whether preset response data corresponding to the point-to-point connection request exists in the wireless communication chip or not; when the preset response data does not exist, the wireless communication chip sends the point-to-point connection request to the processor; the wireless communication chip receives target response data which are sent by the processor and correspond to the point-to-point connection request, and sends the target response data to other equipment; when the preset response data are detected, the wireless communication chip sends the preset response data to the other equipment and sends the point-to-point connection request to the processor; and receiving target response data sent by the processor, sending the target response data to other equipment, and replacing preset response data with the target response data. The scheme can give consideration to the searching and matching efficiency and the expandability of the point-to-point equipment.
Description
Technical Field
The invention relates to the field of WIFI, in particular to point-to-point equipment and a searching and matching method thereof.
Background
In the prior art, the method for implementing device search matching by using Peer-to-Peer connection (Peer-to-Peer, P2P) may include the following two methods: 1) the device searching and matching method is realized through a wireless communication chip; 2) the device search matching method is realized through an operating system. In the method 1), in a WIFI chip, a chip firmware realizes a search matching algorithm specified by a WIFI P2P protocol; in the method 2), a basic communication function is provided in the WIFI chip, and a search matching algorithm specified by the WIFI P2P protocol is provided by a device using the WIFI chip, that is, the P2P protocol is implemented by an Android (Android) system.
The method 1) can realize faster search response, but after the chip leaves the factory, the functions of the chip are fixed, new functions cannot be added, and the expandability is poor. In the method 2), the WIFI chip only provides a data communication function, data is not controlled or analyzed, a new function or a new search method is added through an Android system, and the expandability is good.
However, the method for searching and matching the device through the operating system has a certain time delay, so that the matching success probability is low.
Disclosure of Invention
The embodiment of the invention solves the problem of considering the searching matching efficiency and the expandability of the point-to-point equipment.
In order to solve the above problem, an embodiment of the present invention provides a peer-to-peer device search matching method, where the peer-to-peer device is adapted to establish peer-to-peer connection with other devices, and the peer-to-peer device includes a wireless communication chip, and the search matching method includes:
the wireless communication chip receives point-to-point connection requests sent by other equipment;
detecting whether preset response data corresponding to the point-to-point connection request exists in the wireless communication chip or not;
and when the preset response data is detected, the wireless communication chip sends the preset response data to the other equipment.
Optionally, the peer-to-peer device search matching method further includes:
when the preset response data does not exist, the wireless communication chip sends the point-to-point connection request to a processor;
and the wireless communication chip receives target response data which is sent by the processor and corresponds to the point-to-point connection request, and sends the target response data to the other equipment.
Optionally, after receiving the destination response data, the method further includes: and the wireless communication chip stores the target response data and takes the target response data as the preset response data.
Optionally, after the preset response data is detected, the method further includes:
the wireless communication chip sends the point-to-point connection request to a processor;
and the wireless communication chip receives the target response data sent by the processor and sends the target response data to the other equipment.
Optionally, the peer-to-peer device search matching method further includes: and the wireless communication chip replaces the preset response data with the target response data.
Optionally, the peer-to-peer device search matching method further includes: and when receiving response data corresponding to the point-to-point connection request sent to other equipment, stopping sending the point-to-point connection request to other equipment.
Optionally, the wireless communication chip is a WIFI chip.
The embodiment of the invention also provides a point-to-point device which is suitable for establishing point-to-point connection with other devices and comprises a wireless communication chip, wherein:
the wireless communication chip is suitable for receiving the point-to-point connection request sent by the other equipment, detecting whether preset response data corresponding to the point-to-point connection request exists or not, and sending the response data to the other equipment when the preset response data exists.
Optionally, the peer-to-peer device further includes: a processor adapted to: and when the preset response data does not exist, receiving the point-to-point connection request sent by the wireless communication chip, processing the point-to-point connection request, generating corresponding target response data and sending the target response data to the wireless communication chip.
Optionally, the wireless communication chip is further adapted to store the destination response data.
Optionally, the wireless communication chip is further adapted to: and when the preset response data exist, sending the point-to-point connection request to a processor, receiving target response data sent by the processor, sending the target response data to the other equipment, and replacing the preset response data with the target response data.
Optionally, the wireless communication chip is further adapted to: and when receiving a channel switching instruction, switching the current channel and sending a point-to-point connection request to other equipment, and stopping sending the point-to-point connection request to other equipment when receiving response data corresponding to the point-to-point connection request sent to other equipment.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:
after receiving a point-to-point connection request sent by other equipment, a wireless communication chip in the point-to-point equipment searches whether response data corresponding to the current point-to-point connection request exists in a preset memory. When response data exist, the response data are directly sent to other equipment without sending a point-to-point connection request to a processor of the point-to-point equipment, and then the response data generated by the processor are sent to other equipment, so that the time delay of equipment searching and matching can be saved, and the matching success probability can be improved.
Further, the wireless communication chip sends the point-to-point connection request to the processor while receiving the point-to-point connection request, receives and sends response data corresponding to the point-to-point connection request sent by the processor, and stores the received response data in the memory. Since the response data sent by the processor is related to the current operating system of the processor, the wireless communication chip can be made to correspond to a different operating system.
Drawings
Fig. 1 is a flowchart of a peer-to-peer device search matching method in an embodiment of the present invention;
fig. 2 is a flowchart of another peer-to-peer device search matching method in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a peer-to-peer device in an embodiment of the present invention.
Detailed Description
In the prior art, the method for implementing device search matching by using Peer-to-Peer connection (Peer-to-Peer, P2P) may include the following two methods: 1) the device searching and matching method is realized through a wireless communication chip; 2) the device search matching method is realized through an operating system. Wherein: the method 1) can realize faster search response, but after the chip leaves the factory, the functions of the chip are fixed, new functions cannot be added, and the expandability is poor. In the method 2), the WIFI chip only provides a data communication function, data is not controlled or analyzed, a new function or a new search method is added through an Android system, and the expandability is good.
However, the method for searching and matching the device through the operating system has a certain time delay, so that the matching success probability is low.
In the embodiment of the invention, after receiving a point-to-point connection request sent by other equipment, a wireless communication chip in the point-to-point equipment searches whether response data corresponding to the current point-to-point connection request exists in a preset memory. When response data exist, the response data are directly sent to other equipment without sending a point-to-point connection request to a processor of the point-to-point equipment, and then the response data generated by the processor are sent to other equipment, so that the time delay of equipment searching and matching can be saved, and the matching success probability can be improved.
WIFI Direct, also known as WIFI P2P, refers to a method that allows devices in a wireless network to connect to each other without passing through a wireless router. Similar to bluetooth, the WIFI Direct standard allows devices to be interconnected in a point-to-point manner, and may conveniently implement Direct connection with other devices, transmit data, or share applications without hotspots and routers.
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below.
The embodiment of the invention provides a point-to-point device search matching method, which is described in detail by referring to fig. 1 through specific steps.
Step S101, the wireless communication chip receives a point-to-point connection request sent by other equipment.
In a particular implementation, a point-to-point (P2P) device may include a wireless communication chip and a processor. The P2P device may enable peer-to-peer communication with other P2P devices through a wireless communication chip. The wireless communication chip may be a WIFI chip, for example, a WIFI chip capable of implementing a WIFI Direct function.
In practical applications, after the P2P device is initialized, the P2P function may be automatically turned on, or the P2P function may be manually turned on by a user through a "setup" interface. After the P2P device turns on the P2P function, the processor may send a channel switch command to the wireless communication chip. After receiving the channel switching instruction, the wireless communication chip performs the channel switching operation and detects whether a P2P connection request sent by other P2P devices exists.
In practical applications, the P2P connection Request sent by other P2P devices may be P2P Request frame data. When the wireless communication chip detects a P2P connection request transmitted by another P2P device, step S102 is performed.
And step S102, when detecting that preset response data corresponding to the point-to-point connection request exists in the wireless communication chip, sending the response data to the other equipment.
In a specific implementation, a part of the memory space may be pre-configured in the wireless communication chip for storing the response data corresponding to the P2P connection request. When detecting that response data corresponding to the currently received P2P connection request is stored in the wireless communication chip, the wireless communication chip sends the preset response data to the other device.
In the embodiment of the present invention, the response data pre-stored in the wireless communication chip may be: response data corresponding to the connection request sent by the other P2P device last time when the connection is established with the current P2P device. That is, after the other P2P devices establish a connection relationship with the current P2P device, the response data corresponding to the connection request can be stored in the wireless communication chip.
In the embodiment of the present invention, the response data pre-stored in the wireless communication chip may also be set by the manufacturer of the wireless communication chip. For example, before the wireless communication chip is shipped from a factory, a manufacturer stores in advance response data corresponding to P2P connection requests of several P2P devices having a large market share in the chip.
It is understood that, in practical applications, P2P connections can be simultaneously established with a plurality of P2P devices corresponding to the same P2P device. The P2P connection requests it sends may be different for different P2P devices. Therefore, the response data stored in the wireless communication chip of the current P2P device may be plural, and different response data correspond to different P2P devices one to one. When the P2P connection request is received, it may be found whether there is preset response data corresponding to the current P2P connection request, that is, preset response data corresponding to the P2P device that sent the P2P connection request.
In practical applications, the preset Response data may be P2P Response frame data.
In a specific implementation, when it is detected that response data corresponding to the currently received P2P connection request is stored in the wireless communication chip, it may be determined that the other P2P device that currently sent the P2P connection request has already established a connection relationship with the current P2P device, and when the connection relationship was established last time, response data corresponding to the connection request sent by the other P2P device has already been stored in the wireless communication chip, and therefore, the response data corresponding to the last connection relationship establishment time may be directly sent to the other P2P device that currently sent the P2P connection request.
For example, the current P2P device is mobile terminal a, the other P2P devices are mobile terminal B, and both mobile terminal a and mobile terminal B support peer-to-peer communication. The mobile terminal B and the mobile terminal a have previously established a connection relationship, and when the connection relationship was established last time, the response data D1 corresponding to the P2P connection request R1 sent by the mobile terminal B has been stored in the wireless communication chip of the mobile terminal a.
The P2P connection request sent by the same P2P device typically remains unchanged, so at the current time, mobile terminal a receives the P2P connection request R1 sent by mobile terminal B. The wireless communication chip of the mobile terminal a detects that the response data D1 corresponding to the P2P connection request R1 is stored in advance, and thus can directly transmit the response data D1 to the mobile terminal B.
That is, in the embodiment of the present invention, by storing response data corresponding to a connection request in the wireless communication chip, when the P2P device requesting connection connects the current P2P device again, the wireless communication chip can directly transmit the pre-stored response data to the P2P device requesting connection without transmitting the P2P connection request to the processor again, and receive the corresponding response data generated via the processor and transmit to the P2P device requesting connection. Meanwhile, the hardware response speed of the wireless communication chip is far faster than the processing time of the processor for the P2P connection request, so that the delay of device search matching can be greatly saved.
Therefore, after the wireless communication chip in the peer-to-peer device receives the peer-to-peer connection request sent by other devices, whether response data corresponding to the current peer-to-peer connection request exists or not is searched in the preset memory. When response data exist, the response data are directly sent to other equipment without sending a point-to-point connection request to the processor, and then the response data generated by the processor are sent to other equipment, so that the time delay of equipment searching and matching can be saved, and the matching success probability is improved.
The point-to-point device search matching method provided in the above embodiment of the present invention is described in detail by specific examples below.
In step S201, the WIFI chip receives a P2P connection request sent by another device.
In the embodiment of the present invention, the wireless communication chip in the P2P device that currently receives the peer-to-peer connection request is a WIFI chip, and the WIFI chip has a WIFI Direct function. The operating system running on the processor is an Android operating system.
The P2P device that currently receives the point-to-point request automatically starts WIFIP2P functions after the power-on initialization is complete. The processor of the current P2P equipment sends a channel switching instruction to the WIFI chip, and the WIFI chip switches channels after receiving the channel switching instruction and detects whether a connection request sent by other P2P equipment exists.
Upon detecting that there is a P2P connection request transmitted by another P2P device, step S202 is performed.
Step S202, determining whether preset response data corresponding to the P2P connection request exists in the wireless communication chip.
In the embodiment of the present invention, when there is response data corresponding to the P2P connection request in the wireless communication chip, it may be determined that the other P2P device currently sending the P2P connection request has previously established a connection relationship with the current P2P device, and thus step S203 may be performed; when there is no response data corresponding to the P2P connection request in the wireless communication chip, it may be determined that the other P2P device currently transmitting the P2P connection request has not established a connection with the current P2P device, and step S207 may be performed.
In step S203, the WIFI chip sends the preset response data to the P2P device requesting connection.
In step S204, a P2P connection request is sent to the processor.
And step S205, receiving destination response data corresponding to the P2P connection request sent by the processor, and sending the destination response data to the P2P device requesting connection.
In step S206, the WIFI chip replaces the preset response data with the target response data.
In the embodiment of the invention, the WIFI chip may also forward the P2P connection request to the processor while sending the response data to the P2P device requesting connection. The processor processes the P2P connection request, generates corresponding target response data and sends the target response data to the WIFI chip. The WIFI chip receives the target response data and sends the target response data to the P2P device requesting connection. Meanwhile, the WIFI chip updates preset response data corresponding to the current P2P connection request in the storage area, and updates the preset response data into the currently received target response data.
For example, the wireless communication chip of the mobile terminal a stores therein preset response data D1 corresponding to the mobile terminal B. The wireless communication chip of the mobile terminal a, upon receiving the P2P connection request transmitted by the mobile terminal B, transmits the response data D1 to the mobile terminal B and, at the same time, transmits the P2P connection request to the processor. The processor processes the P2P connection request, generates destination response data D2 and sends the destination response data D2 to the wireless communication chip. The wireless communication chip transmits the response data D2 to the mobile terminal B and replaces the response data D1 with the response data D2.
In step S207, the WIFI chip sends the P2P connection request to the processor.
In the embodiment of the present invention, when the P2P device sending the P2P connection request establishes a connection with the current P2P device for the first time, corresponding response data may not exist in the WIFI chip, and therefore, the WIFI chip may send the P2P connection request to the processor.
And step S208, receiving the destination response data sent by the processor, and sending the destination response data to the P2P device sending the connection request.
In the embodiments of the present invention. After receiving the P2P connection request, the processor may process the P2P connection request, generate corresponding target response data, and send the target response data to the WIFI chip. The WIFI chip receives the target response data and sends the target response data to the P2P device requesting connection.
Meanwhile, the WIFI chip stores the target response data as preset response data. When the P2P device that currently sends the P2P connection request sends a connection request to the current P2P device next time, the destination response data can be directly sent to the P2P device that sent the P2P connection request.
In a specific implementation, after sending response data to other P2P devices, the P2P device may also send P2P connection requests to other devices. When response data returned by other P2P devices is not received within a preset time length, the channel may continue to be switched, and the P2P connection request may be retransmitted, where the preset time length may be 10 ms. The probability of collision is increased by sending a large number of P2P connection requests in a short time. When response data sent by other devices is received, stopping sending the P2P connection request, entering a negotiation stage, and negotiating which device is used as a master device, where details of the negotiation process are not described herein
In summary, the wireless communication chip sends the peer-to-peer connection request to the processor while receiving the peer-to-peer connection request, receives and sends the response data corresponding to the peer-to-peer connection request sent by the processor, and stores the received response data in the memory. Since the response data sent by the processor is related to the current operating system of the processor, the wireless communication chip can be made to correspond to a different operating system.
Referring to fig. 3, an embodiment of the present invention further provides a peer-to-peer device, which is adapted to establish a peer-to-peer connection with another device, and includes: a wireless communication chip 301, wherein:
the wireless communication chip 301 is adapted to receive a point-to-point connection request sent by the other device, detect whether preset response data corresponding to the point-to-point connection request exists, and send the response data to the other device when the preset response data exists.
In a specific implementation, the peer-to-peer device may further include a processor 302, the processor 302 being adapted to: when the preset response data does not exist, the point-to-point connection request sent by the wireless communication chip 301 is received, the point-to-point connection request is processed, and corresponding target response data is generated and sent to the wireless communication chip 301.
In a specific implementation, the wireless communication chip 301 may be further adapted to store the destination response data.
In a specific implementation, the wireless communication chip 301 may be further adapted to: when the preset response data exists, the P2P connection request is sent to the processor 302, the destination response data sent by the processor 302 is received and sent to the other devices, and the preset response data is replaced by the destination response data.
In a specific implementation, the wireless communication chip 301 may be further adapted to: and when receiving a channel switching instruction, switching the current channel and sending a point-to-point connection request to other equipment, and when receiving response data corresponding to the point-to-point connection request sent to other equipment, stopping sending the P2P connection request to other equipment.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A peer-to-peer device search matching method, wherein the peer-to-peer device is adapted to establish peer-to-peer connection with other devices, the peer-to-peer device includes a wireless communication chip, and the search matching method includes:
the wireless communication chip receives point-to-point connection requests sent by other equipment; the wireless communication chip is a WIFI chip;
detecting whether preset response data corresponding to the point-to-point connection request exists in the wireless communication chip or not;
when the preset response data does not exist, the wireless communication chip sends the point-to-point connection request to a processor; receiving target response data which is sent by the processor and corresponds to the point-to-point connection request, and sending the target response data to the other equipment;
when the preset response data is detected, the wireless communication chip sends the preset response data to the other equipment and sends the point-to-point connection request to a processor; and receiving target response data sent by the processor, sending the target response data to the other equipment, and replacing the preset response data with the target response data.
2. The peer-to-peer device search matching method of claim 1, after receiving the destination response data, further comprising: and the wireless communication chip stores the target response data and takes the target response data as the preset response data.
3. The peer-to-peer device search matching method as defined in claim 1, further comprising: and when receiving response data corresponding to the point-to-point connection request sent to other equipment, stopping sending the point-to-point connection request to other equipment.
4. The point-to-point device is suitable for establishing point-to-point connection with other devices and comprises a wireless communication chip and a processor, wherein the wireless communication chip is a WIFI chip, and the point-to-point device comprises:
the wireless communication chip is suitable for receiving the point-to-point connection request sent by the other equipment, detecting whether preset response data corresponding to the point-to-point connection request exists or not, and sending the response data to the other equipment when the preset response data exists;
the processor is suitable for receiving the point-to-point connection request sent by the wireless communication chip when the preset response data does not exist, processing the point-to-point connection request, generating corresponding target response data and sending the target response data to the wireless communication chip;
the wireless communication chip is further adapted to send the point-to-point connection request to a processor when the preset response data exists, receive target response data sent by the processor and send the target response data to the other devices, and replace the preset response data with the target response data.
5. The peer-to-peer device of claim 4, wherein the wireless communication chip is further adapted to store the destination response data.
6. The peer-to-peer device of claim 4, wherein the wireless communication chip is further adapted to: and when receiving a channel switching instruction, switching the current channel and sending a point-to-point connection request to other equipment, and stopping sending the point-to-point connection request to other equipment when receiving response data corresponding to the point-to-point connection request sent to other equipment.
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| CN110602223A (en) | 2019-12-20 |
| CN106330985B (en) | 2019-11-05 |
| CN106330985A (en) | 2017-01-11 |
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