CN113950098B

CN113950098B - AP equipment networking method, AP equipment and system

Info

Publication number: CN113950098B
Application number: CN202010682121.4A
Authority: CN
Inventors: 易鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2024-06-18
Anticipated expiration: 2040-07-15
Also published as: CN113950098A

Abstract

The application provides an AP equipment networking method, AP equipment and an AP equipment networking system; the method and the device relate to the technical field of wireless communication, can simultaneously support signal forwarding in at least two communication frequency bands, avoid the problem of collision of an air interface of a forwarding path based on an error frequency forwarding principle, and improve the communication quality and the communication efficiency of terminal equipment. The AP equipment networking system comprises: a first forwarding device and a second forwarding device. At least two communication links are established between the first forwarding device and the second forwarding device, and the communication frequency bands of the at least two communication links are different. After the first forwarding device receives the first signal in the first communication frequency band, a communication link supporting a second communication frequency band different from the first communication frequency band is selected from at least two communication links based on the first communication frequency band, and the first signal is forwarded to the second forwarding device.

Description

AP equipment networking method, AP equipment and system

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to an AP device networking method, an AP device, and a system.

Background

With the development of wireless communication technology, a three-frequency router capable of simultaneously supporting three Wi-Fi frequency bands of 2.4g/5g low frequency/5 g high frequency is deduced on the basis of a single-frequency router supporting the 2.4gWi-Fi frequency band. The three-frequency router can be configured with different access frequency bands and output frequency bands to solve the problem of collision of an air interface. For example, a tri-band router includes interface 1, interface 2, and interface 3. Wherein, interface 1 is used for access terminal equipment. The frequency band supported by the interface 1 is the access frequency band. And the interface 2 is used for receiving signals sent by other AP equipment. Interface 3 is for transmitting signals to other AP devices. The frequency band supported by the interface 3 is the output frequency band. Wherein, the frequency band supported by interface 1 and interface 3 is different, and the frequency band supported by interface 2 and interface 3 is the same.

Further, a distributed Wi-Fi technology may be further adopted, where multiple tri-band routers form a communication network through Wi-Fi links, where routers in the communication network use the same service set identifier (SERVICE SET IDENTIFIER, SSID), so as to extend Wi-Fi signal coverage of the communication network. However, in the distributed networking composed of three-frequency routers, although the access frequency band and the output frequency band of each three-frequency router are different, the output frequency band of each three-frequency router is still the same. For example, when the tri-band router 1 is connected to the tri-band router 2, the frequency band supported by the interface 2 of the tri-band router 2 is the same as the frequency band supported by the interface 3, which results in that the interface 3 of the tri-band router 1 is the same as the frequency band supported by the interface 3 of the tri-band router 2. I.e. the output frequency band of the tri-band router 1 is the same as that of the tri-band router 2. It can be seen that the present solution also causes collision of the air interface, resulting in poor communication effect of the terminal device.

For this purpose, two adjacent three-frequency routers may be provided with different output frequency bands. That is, the frequency bands supported by the interface 2 and the interface 3 are different on the basis that the frequency bands supported by the interface 1 and the interface 3 of the three-frequency router are different. For example, when the tri-band router 1 and the tri-band router 2 are connected and the frequency band supported by the interface 2 of the tri-band router 2 is set to be different from the frequency band supported by the interface 3, the interface 3 of the tri-band router 1 is set to be different from the frequency band supported by the interface 3 of the tri-band router 2. I.e. the output frequency band of the tri-band router 1 is different from that of the tri-band router 2. It can be seen that this solution avoids collisions of the air interface. However, since the frequency band supported by the tri-band router is limited, in the current scheme, the frequency band supported by the first interface is limited. Then, the supported frequency bands of the first interfaces of the different tri-band routers may be caused to be different. If the terminal equipment moves, wi-Fi signal coverage exceeding a certain three-frequency router which is being connected enters Wi-Fi signal coverage of another three-frequency router, namely the terminal equipment roams. In the roaming process, the terminal equipment needs frequency hopping and cross-channel scanning to access another three-frequency router, so that the service of the terminal equipment is blocked.

Disclosure of Invention

The AP equipment networking method, the AP equipment and the system provided by the application can simultaneously support signal forwarding in at least two communication frequency bands, avoid the problem of collision of an air interface of a forwarding path based on the error frequency forwarding principle, and improve the communication quality and the communication efficiency of the terminal equipment.

In order to achieve the above purpose, the application adopts the following technical scheme:

In a first aspect, the present application provides an AP device networking system, where the system includes a first forwarding device and a second forwarding device. And at least two communication links are established between the first forwarding device and the second forwarding device, and the communication frequency bands supported by the at least two communication links are different. And the first forwarding device is used for receiving the first signal in the first communication frequency band. The first forwarding device is further configured to forward the first signal to the second forwarding device through a communication link supporting the second communication frequency band; the second communication band is different from the first communication band. And the second forwarding device is used for receiving the first signal in a second communication frequency band.

The first forwarding device may be the slave AP device 2, and the second forwarding device may be the slave AP device 1. The communication link between the first forwarding device and the second forwarding device may be a forwarding path between the AP devices, i.e. the received signal is forwarded from the AP device 2 to the slave AP device 1 via the forwarding path. At least two forwarding paths are established between the slave AP device 1 and the slave AP device 2, and each forwarding path supports a different communication frequency band.

Optionally, the principle of signal forwarding between AP devices is an error frequency forwarding principle. That is, the communication band of the AP device forward signal is different from the communication band of the access signal.

In this way, the first forwarding device may select, based on the first communication band of the received first signal, a forwarding path supporting a second communication band different from the first communication band among the at least two forwarding paths that are selectable, to forward the first signal to the second forwarding device. The communication frequency band of the output signal is different from that of the input signal, so that the problem of air interface collision is avoided, and the communication quality is improved.

In a possible implementation manner, the system further comprises a third forwarding device, at least two communication links are established between the second forwarding device and the third forwarding device, and communication frequency bands supported by the communication links between the second forwarding device and the third forwarding device are different. The second forwarding device is further configured to forward the first signal to the third forwarding device through a communication link supporting the third communication frequency band; the third communication band is different from the second communication band. And a third forwarding device for receiving the first signal in a third communication frequency band.

The third forwarding device may be a master AP device. At least two forwarding paths are also established between the slave AP device 1 and the master AP device, and each forwarding path supports a different communication frequency band.

The second forwarding device may then select a forwarding path supporting a third communication band different from the second communication band among the at least two forwarding paths that are selectable based on the second communication band of the received first signal, forwarding the first signal to the third forwarding device.

That is, in a communication system including a first forwarding device, a second forwarding device, and a third forwarding device, in a process of transmitting a first signal, two signal forwarding processes are passed, and communication frequency bands supported by the two forwarding paths are different. Therefore, the communication frequency bands of the forwarding paths are different, the problem of air interface collision is avoided, and the communication quality is improved.

In one possible implementation manner, the first forwarding device is specifically configured to receive a first signal of a first communication band sent by the first terminal device.

Optionally, the AP device includes at least three interfaces, such as a first interface, a second interface, and a third interface. The first interface is an interface of the access terminal equipment, the second interface is an interface for accessing other AP equipment, and the first interface and the second interface are used as access interfaces for accessing signals. The third interface is used as a forwarding interface for forwarding the accessed signal.

That is, the first forwarding device receives the first signal transmitted by the first terminal device using the first interface.

In one possible implementation manner, the second forwarding device is further configured to receive the second signal of the first communication band sent by the first terminal device when the first terminal device moves into a signal coverage area of the second forwarding device.

Alternatively, the AP device distributed networking is to increase the Wi-Fi band signal coverage by increasing the number of slave AP devices, where each AP device has limited Wi-Fi band signal coverage. In the moving process, the terminal equipment may exceed the Wi-Fi frequency band signal coverage of the AP equipment currently connected and enter the Wi-Fi frequency band signal coverage of another AP equipment. I.e. roaming situations occur. In the roaming process, the terminal device needs to perform network reselection to access the new AP device.

Optionally, the communication frequency band supported by the first interface of each AP device is the same. For example, the first interfaces each support all communication bands provided by the AP device.

Optionally, the first forwarding device, the second forwarding device and the third forwarding device are tri-band routers. The three-frequency router supports three communication frequency bands, namely a first frequency band, a second frequency band and a third frequency band. Then the first interface may support a first frequency band, a second frequency band and a third frequency band. That is, the first communication band is any one of the communication bands supported by the three-frequency router.

For example, the terminal device 2 accesses the slave AP device 2 in the communication frequency band of the second frequency band, and after the terminal device 2 moves, the Wi-Fi frequency band signal coverage of the slave AP device 2 is exceeded, and the Wi-Fi frequency band signal coverage of the slave AP device 1 is moved. I.e. roaming occurs, requiring access to the slave AP device 1. Based on this, the communication frequency band supported by the first interface of the AP device 1 and the AP device 2 are the same, and are three communication frequency bands of the first frequency band, the second frequency band and the third frequency band. Then, the terminal device 2 may be directly switched from the second frequency band provided from the AP device 2 to the second frequency band provided from the AP device 1 during roaming. In the roaming process, the communication frequency band is unchanged, so that frequency hopping and cross-channel scanning are not needed, and the smoothness of the service in the roaming process is ensured. For example, roaming problems occur during the process that the terminal device 2 is playing video. Then, the terminal device 2 can finish the reselection of the network without perception of the user, so that the video is not blocked, and the user experience is improved.

In one possible implementation, the second forwarding device is further configured to forward the second signal to the third forwarding device through a communication link supporting the fourth communication band; the fourth communication band is different from the first communication band.

Illustratively, after roaming, the terminal device 2 transmits an uplink signal to the slave AP device 1 in the second frequency band (i.e., the first communication frequency band). Then, the slave AP device 1 forwards the uplink signal transmitted by the terminal device 2 to the master AP device in the third frequency band (i.e., the fourth communication frequency band).

In one possible implementation manner, the first forwarding device is further configured to receive a third signal of the second communication band sent by the second terminal device. The first forwarding device is further configured to forward the third signal to the second forwarding device through a communication link supporting the fifth communication band or the first communication band; the fifth communication band is different from the second communication band.

Illustratively, the uplink signal 1 transmitted by the terminal device 1 is received from the AP device 1 in the first frequency band, and the uplink signal 1 is forwarded in the third frequency band (i.e., the second communication frequency band). The slave AP device 1 may also receive the uplink signal 2 (i.e., the third signal) transmitted by the terminal device 2 (i.e., the second terminal device) in the third frequency band, and forward the uplink signal 2 in the second frequency band (i.e., the fifth communication frequency band or the first communication frequency band).

That is, the embodiment of the present application does not limit the communication frequency band supported by the first interface of the AP device. Even if the AP device forwards the signal of the terminal device 1 in a certain communication band, the AP device can also receive signals transmitted by other terminal devices in the communication band.

In a second aspect, the present application provides a method for networking AP devices, where the method is applied to a communication system including a first forwarding device and a second forwarding device; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different. The method comprises the following steps: the first transmitting device receives a first signal in a first communication band. The first forwarding device forwards the first signal to the second forwarding device through a communication link supporting the second communication band; the second communication band is different from the first communication band.

In one possible implementation, the first forwarding device receives the first signal in a first communication band; comprising the following steps: the first forwarding device receives a first signal of a first communication frequency band sent by the first terminal device.

In one possible implementation, the method further includes: the first forwarding device receives a third signal of the second communication frequency band sent by the second terminal device. The first forwarding device forwards the third signal to the second forwarding device through a communication link supporting the fifth communication band or the first communication band; the fifth communication band is different from the second communication band.

In one possible implementation, the first forwarding device and the second forwarding device are tri-band routers.

In one possible implementation, the first communication band is any one of the communication bands supported by the tri-band router.

In addition, the technical effects of the AP device networking method according to the second aspect may refer to the technical effects of the AP device networking system according to the first aspect, which are not described herein.

In a third aspect, the present application provides a method for networking AP devices, where the method is applied to a communication system including a first forwarding device and a second forwarding device; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different. The method comprises the following steps: the second forwarding device receives the first signal in a second communication frequency band; the first signal is received by the first forwarding device in a first communication frequency band and is forwarded to the second forwarding device through a communication link supporting a second communication frequency band; the second communication band is different from the first communication band.

In one possible implementation, the communication system further includes a third forwarding device, at least two communication links are established between the second forwarding device and the third forwarding device, and communication frequency bands supported by the communication links between the second forwarding device and the third forwarding device are different. The method further comprises the steps of: the second forwarding device forwards the first signal to the third forwarding device through a communication link supporting the third communication frequency band; the third communication band is different from the second communication band.

In one possible implementation, the first signal is a signal of a first communication band transmitted by the first terminal device. The method further comprises the steps of: when the first terminal equipment moves to the signal coverage range of the second forwarding equipment, the second forwarding equipment receives a second signal of the first communication frequency band sent by the first terminal equipment.

In one possible implementation, the method further includes: the second forwarding device forwards the second signal to the third forwarding device through a communication link supporting a fourth communication frequency band; the fourth communication band is different from the first communication band.

In one possible implementation, the first forwarding device, the second forwarding device, and the third forwarding device are tri-band routers.

In addition, the technical effects of the AP device networking method according to the third aspect may refer to the technical effects of the AP device networking system according to the first aspect, which are not described herein.

In a fourth aspect, the present application provides a first forwarding device comprising: a processor and a memory coupled to the processor, the memory for storing computer program code, the computer program code comprising computer instructions that, when read from the memory by the processor, cause the first forwarding device to perform the operations of: a first signal is received in a first communications band. Forwarding the first signal to the second forwarding device over a communication link supporting the second communication band; the second communication band is different from the first communication band; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different.

In one possible implementation, a first signal is received in a first communications band; comprising the following steps: and receiving a first signal of a first communication frequency band sent by the first terminal equipment.

In one possible implementation, when the processor reads the computer instructions from the memory, the forwarding device is further caused to: and receiving a third signal of the second communication frequency band sent by the second terminal equipment. Forwarding the third signal to the second forwarding device over a communication link supporting the fifth communication band or the first communication band; the fifth communication band is different from the second communication band.

In addition, the technical effects of the first forwarding device described in the fourth aspect may refer to the technical effects of the AP device networking system described in the first aspect, which are not described herein.

In a fifth aspect, the present application provides a second forwarding device, including: a processor and a memory coupled to the processor, the memory for storing computer program code, the computer program code comprising computer instructions that, when read from the memory by the processor, cause the second forwarding device to perform the operations of: receiving the first signal in a second communication frequency band; the first signal is received by the first forwarding device in a first communication frequency band and is forwarded to the second forwarding device through a communication link supporting a second communication frequency band; the second communication band is different from the first communication band; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different.

In one possible implementation manner, at least two communication links are established between the second forwarding device and the third forwarding device, and communication frequency bands supported by the communication links between the second forwarding device and the third forwarding device are different; when the processor reads the computer instructions from the memory, the second forwarding device is further caused to: forwarding the first signal to a third forwarding device over a communication link supporting a third communication band; the third communication band is different from the second communication band.

In one possible implementation manner, the first signal is a signal of a first communication frequency band sent by the first terminal device; when the processor reads the computer instructions from the memory, the second forwarding device is further caused to: and when the first terminal equipment moves to the signal coverage range of the second forwarding equipment, receiving a second signal of the first communication frequency band sent by the first terminal equipment.

In one possible implementation, when the processor reads the computer instructions from the memory, the second forwarding device is further caused to: forwarding the second signal to the third forwarding device over a communication link supporting the fourth communication band; the fourth communication band is different from the first communication band.

In addition, the technical effects of the second forwarding device according to the fifth aspect may refer to the technical effects of the AP device networking system according to the first aspect, which are not described herein.

In a sixth aspect, the present application provides a first forwarding device, where the first forwarding device has a function of implementing the AP device networking method as described in the second aspect and any one of possible implementation manners of the second aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a seventh aspect, the present application provides a second forwarding device, where the second forwarding device has a function of implementing the AP device networking method as described in the third aspect and any one of possible implementation manners of the third aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In an eighth aspect, the present application provides a computer readable storage medium comprising computer instructions which, when run on a first forwarding device, cause the first forwarding device to perform the AP device networking method according to any one of the second aspect and any one of the possible implementations.

In a ninth aspect, the present application provides a computer readable storage medium comprising computer instructions which, when run on a second forwarding device, cause the second forwarding device to perform the AP device networking method according to any one of the third aspect and any one of the possible implementations.

In a tenth aspect, the present application provides a computer program product, which when run on a first forwarding device causes the first forwarding device to perform the AP device networking method as in any of the second aspect and any of the possible implementations thereof.

In an eleventh aspect, the present application provides a computer program product for, when run on a second forwarding device, causing the second forwarding device to perform the AP device networking method as in any of the third aspect and any of the possible implementations thereof.

In a twelfth aspect, there is provided circuitry comprising processing circuitry configured to perform the AP device networking method as described in any one of the possible implementations of the second to third aspects above.

In a thirteenth aspect, an embodiment of the present application provides a chip system, including at least one processor and at least one interface circuit, where the at least one interface circuit is configured to perform a transceiver function and send an instruction to the at least one processor, and when the at least one processor executes the instruction, the at least one processor performs the AP device networking method as described in the second aspect to the third aspect, and any one of possible implementation manners of the foregoing.

Drawings

Fig. 1 is a schematic diagram of a network architecture of a communication system according to an embodiment of the present application;

fig. 2 is a schematic hardware structure of a communication device according to an embodiment of the present application;

fig. 3 is a schematic diagram of a networking manner of an AP device in the prior art according to an embodiment of the present application;

fig. 4 is a schematic diagram two of a networking manner of an AP device in the prior art according to an embodiment of the present application;

fig. 5 is a schematic diagram of an AP device networking manner according to an embodiment of the present application;

fig. 6 is a flow chart of an AP device networking method according to an embodiment of the present application;

fig. 7 is a schematic diagram of an application scenario in a networking manner of an AP device according to an embodiment of the present application;

Fig. 8 is a second application scenario schematic diagram of an application AP device networking manner provided in an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a first forwarding device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a second forwarding device according to an embodiment of the present application.

Detailed Description

The following describes in detail an AP device networking method, an AP device, and a system provided by the embodiments of the present application with reference to the accompanying drawings.

The terms "comprising" and "having" and any variations thereof, as referred to in the description of the application, are intended to cover non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.

It should be understood that the technical solution of the embodiment of the present application may be applied to various communication systems, for example: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (GENERAL PACKET radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, WIMAX) communication system, public land mobile network (public land mobile network, PLMN) system, fifth generation (5th generation,5G) system or New Radio (NR), or application to future communication systems or other similar communication systems, etc.

Fig. 1 is a schematic diagram of a network architecture of a communication system to which an embodiment of the present application is applicable. It should be noted that, in the embodiment of the present application, a part of the scenario is illustrated by taking a scenario in the communication system shown in fig. 1 as an example. It should be noted that the solution in the embodiment of the present application may also be applied to other mobile communication systems, and the corresponding names may also be replaced by names of corresponding functions in other mobile communication systems.

As shown in fig. 1, the communication system includes at least two wireless Access Point (AP) devices 100, at least one terminal device 200, and a communication network 300. The plurality of AP devices form a wireless access network of the terminal device 200 in a distributed networking manner, wherein an AP device directly connected to the communication network 300 is a master AP device, and other AP devices are slave AP devices. The communication system includes at least one slave AP device. Each AP device is connected to one or more terminal devices 200.

Alternatively, the AP device 100 is configured to connect individual wireless network clients (e.g., the terminal device 200) connected to the Wi-Fi network provided by the AP device 100 together and then access the communication network 300. As shown in fig. 1, the main AP device accesses a network provided by the communication network 300 through a wired connection or a wireless connection, and converts the accessed communication network into a wireless network (i.e., wi-Fi network) for connection with other AP devices or terminal devices 200. Such as one or more slave AP devices and one or more terminal devices 200, are connected to the corresponding AP device 100 by wireless connection.

The AP device 100 may include, for example, a wireless router, a wireless gateway, or a wireless bridge, among others. Taking the AP device 100 as a wireless router for example, the AP device 100 implements access and data forwarding of the terminal device 200. In general, the wireless router may include a single frequency router, a dual frequency router, or a tri-frequency router. Wherein the single frequency router supports a communication band, such as 2.4g. The dual-band router supports two communication bands, such as 2.4g and 5g low frequencies. The three-frequency router supports three communication frequency bands of 2.4g,5g of low frequency and 5g of high frequency, and the corresponding communication frequencies are 2.4GHz,5GHz and 5.8GHz.

It will be appreciated that, as communication technologies evolve, the communication frequency band supported by the wireless router may vary accordingly, and embodiments of the present application are not limited in this respect.

In some embodiments, AP device 100 may coordinate attribute management for the air interface. For example, the communication frequency band supported by the interface of the AP device 100 with the access terminal device 200 is adjusted to be different from the communication frequency band of the forwarding interface, so as to avoid the problem of collision of an air interface (i.e., air interface) caused by that the communication frequency bands of the path of the access terminal device 200 and the forwarding path are the same. For another example, in the serial networking of fig. 1, the communication frequency bands supported by the interfaces of the different AP devices 100 are adjusted so that the communication frequency bands of the forwarding paths of the different AP devices 100 are different, thereby avoiding the problem of collision of the air interfaces due to the same communication frequency band of the forwarding paths.

The terminal device 200 according to the embodiment of the present application may include, but is not limited to, a vehicle-mounted device, a wearable device, a computing device, a chip built in the computing device, or other processing device connected to a wireless modem; and may also include cellular (cellular) telephones, personal communication services (personal communication service, PCS) telephones, cordless telephones, session initiation protocol (session initiation protocol, SIP) phones, smart phones (smart phone), personal Digital Assistant (PDA) computers, tablet computers, laptop computers (laptop computers), wireless modems (modems), handheld devices (handheld), wireless local loop (wireless local loop, WLL) stations, artificial intelligence (ARTIFICIAL INTELLIGENCE) terminals, and other end devices. The terminal device 200 may also be a Subscriber Unit (SU), a subscriber station (subscriber station, SS), a mobile station (MB), a mobile station (mobile), a Remote Station (RS), a Remote Terminal (RT), a User Terminal (UT), a terminal device (UD), a User Equipment (UE), a wireless data card, a subscriber unit (subscriber unit), a machine type communication (MACHINE TYPE communication, MTC) terminal (terminal), a customer terminal device (customer premise equipment, CPE), or the like, which is not limited in this embodiment of the present application. In the embodiment of the present application, the device for implementing the function of the terminal device 200 may be a terminal device, or may be a device (such as a chip system in a terminal device) for supporting the terminal device 200 to implement the function.

The communication network 300 to which embodiments of the present application relate may provide a wired network or a wireless network. For example, may be a base station, and may also be referred to as a radio access network (radio access network, RAN) node (or device). For example, the communication network 300 may include an evolved Node B (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (long term evolution, LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), such as a conventional macro eNB and a micro eNB in a heterogeneous network scenario, or may also include a next generation NodeB (next generation Node B, gNB) in a New Radio (NR) system of a fifth generation mobile communication technology (5th generation,5G), or may further include a transmission receiving point (transmission reception point, TRP), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a baseband pool BBU pool, etc., or may further include a centralized unit (centralized unit, CU) and a Distributed Unit (DU) in a cloud access network (cloud radio access network, cloudRAN) system, etc., which is not limited by the embodiments of the present application.

It should be noted that, the term "communication" in the embodiment of the present application may also be described as "data transmission", "information transmission" or "transmission", etc.

Alternatively, the AP device 100 in the embodiment of the present application may be implemented by different devices. For example, the AP device 100 in the embodiment of the present application may be implemented by the communication device in fig. 2.

Fig. 2 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application. The communication device comprises at least one processor 201, communication lines 202, a memory 203 and at least one communication interface 204. Wherein the memory 203 may also be included in the processor 201.

The processor 201 may be a central processing unit (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Communication line 202 may include a pathway to transfer information between the aforementioned components.

A communication interface 204 for communicating with other devices. In the embodiment of the present application, the communication interface may be a module, a circuit, a bus, an interface, a transceiver, or other devices capable of implementing a communication function, for communicating with other devices. Alternatively, when the communication interface is a transceiver, the transceiver may be a separately provided transmitter that is operable to transmit information to other devices, or a separately provided receiver that is operable to receive information from other devices. The transceiver may also be a component that integrates the functions of transmitting and receiving information, and embodiments of the present application are not limited to the specific implementation of the transceiver.

The memory 203 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM) or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory may be stand alone and be coupled to the processor 201 via a communication line 202. Memory 203 may also be integrated with processor 201.

The memory 203 is used for storing computer-executable instructions for implementing the scheme of the present application, and is controlled to be executed by the processor 201. The processor 201 is configured to execute computer-executable instructions stored in the memory 203, thereby implementing a carrier wave transmission method provided in the following embodiments of the present application.

Alternatively, the computer-executable instructions in the embodiments of the present application may be referred to as application code, instructions, computer programs, or other names, and the embodiments of the present application are not limited in detail.

In a particular implementation, as one embodiment, processor 201 may include one or more CPUs, such as CPU0 and CPU1 of FIG. 2.

In a particular implementation, as one embodiment, the communication device may include a plurality of processors, such as processor 201 and processor 205 in FIG. 2. Each of these processors may be a single-core (single-CPU) processor or may be a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The communication device may be a general-purpose device or a special-purpose device, and the embodiment of the present application is not limited to the type of communication device. The AP device may be a device having a similar structure to that of fig. 2.

A tri-band router is exemplified as the AP device 100 described above. That is, the AP device may support communication in three wireless communication bands. The wireless communication frequency band comprises a first frequency band, a second frequency band and a third frequency band. The following description will take, as an example, a first frequency band of 2.4g communication frequency band, a second frequency band of 5g low frequency communication frequency band, and a third frequency band of 5g high frequency communication frequency band.

First, an AP device networking manner in the prior art is described. As shown in fig. 3, the AP device network includes three AP devices of a serial network, namely a master AP device, a slave AP device 1 and a slave AP device 2. The terminal device is accessed by the slave AP device 2, and is accessed into the communication network after the slave AP device 1 and the master AP device via the slave AP device 2. The transmission link between the AP devices and the terminal device is a forward transmission line (fronthaul), and the transmission link between the AP devices is a backhaul (backhaul). For example, as shown in fig. 3, the slave AP device includes three interfaces, interface 1, interface 2, and interface 3. Interface 1 is used for accessing terminal equipment, and the transmission link between the terminal equipment and interface 1 is fronthaul. Interface 2 is for connection with other AP devices, receiving a forward signal. The interface 3 is used for transmitting the forwarding signal. The transmission link between the interface 2 of one AP device and the interface 3 of another AP device is backhaul. For example, the slave AP device 2 forwards the signal to the interface 2 of the slave AP device 1 by means of a backhaul via the interface 3.

In the networking manner of AP devices shown in fig. 3, in order to avoid collision of air interfaces caused by identical communication frequency bands of fronthaul and backhaul of the AP devices, a configuration manner is proposed, where the communication frequency bands supported by interface 1 and interface 3 of the AP devices are configured to be different. For example, interface 1 is configured to support a first frequency band and a second frequency band, interface 3 is configured to support a third frequency band, and interface 2 is configured to support a third frequency band.

However, in the networking scheme shown in fig. 3, based on the current configuration scheme, the two backhauls include a communication link 31 between the slave AP device 2 and the slave AP device 1, and a communication link 32 between the slave AP device 1 and the master AP device. Since the communication frequency bands configured by the AP device interface 2 and the interface 3 are the same, the communication frequency bands of the communication link 31 and the communication link 32 are the same, which causes the problem of collision of air interfaces, resulting in poor communication effect of the terminal device.

Based on this, as shown in fig. 4, another configuration manner is proposed, where in the same AP device, besides the communication frequency bands supported by the interface 1 and the interface 3 are different, the communication frequency bands supported by the interface 2 and the interface 3 are also configured to be different, so that the communication frequency bands of different backhaul in the transmission paths of the terminal device are different, thereby avoiding the collision of the air interface. For example, the interface 1 of the AP device 2 supports the first frequency band and the third frequency band, the interface 3 supports the second frequency band, and the interface 2 supports the third frequency band. Then, from interface 2 of AP device 1, the second frequency band is supported, and then interface 3, the third frequency band, and interface 1, the first frequency band and the second frequency band are supported. Interface 2 of the main AP device supports the third frequency band, and interface 1 supports the first frequency band and the second frequency band. Two backhauls in the transmission path of the terminal device include a communication link 41 between the slave AP device 2 and the slave AP device 1, and a communication link 42 between the slave AP device 1 and the master AP device. Then, the communication band of the communication link 41 is the second band, and the communication band of the communication link 42 is the third band, so that no air interface collision occurs.

However, as shown in fig. 4, the communication frequency band supported by the AP device is limited, although it is guaranteed that the communication frequency bands of different backhaul in the transmission path of the terminal device are different. But also results in a limited communication band configurable by the interface 1 of the AP device, so that the communication bands supported by the interfaces 1 of different AP devices may not be the same. For example, the first frequency band and the third frequency band are supported from the interface 1 of the AP device 2, and the first frequency band and the second frequency band are supported from the interface 1 of the AP device 1. Suppose that the terminal device chooses to access the slave AP device 2 by the third frequency band. Since the service range of the AP device (i.e., wi-Fi signal coverage) is limited, if the terminal device moves beyond the service range of the slave AP device 2, the terminal device moves to the service range of the slave AP device 1. The terminal device needs to disconnect from the interface 1 of the slave AP device 2 and access the interface 1 of the slave AP device 1. Since the interface 1 of the slave AP device 1 does not support the third frequency band, the terminal device needs to hop frequency and scan across channels to access the interface 1 of the slave AP device 1 in the process of roaming from the slave AP device 2 to the slave AP device 1, resulting in traffic jam.

Fig. 5 is a network connection manner of an AP device according to an embodiment of the present application. The AP device network includes a master AP device and one or more slave AP devices, such as slave AP device 1 and slave AP device 2 shown in fig. 5. The main AP equipment is equipment used for accessing the communication network in the communication network. The slave AP device accesses the master AP device in a serial connection. The master AP equipment and the slave AP equipment expand the signal coverage range of Wi-Fi through the distributed networking mode. The slave AP device 2 may be a first forwarding device, the slave AP device 1 may be a second forwarding device, and the master AP device may be a third forwarding device.

It will be appreciated that two slave AP devices are shown in fig. 5 by way of example only, and that further slave AP devices, such as slave AP device 3, slave AP device 4, etc., may be connected after the slave AP device 2.

In the embodiment of the present application, the description is given by using the serial networking mode of the AP device, which is due to the problem that in the serial networking mode, the forwarding path is prone to collision of the air interface caused by co-channel interference. It is understood that the AP device networking mode is not limited to serial networking, and other networking modes may exist. The following AP device networking method may also be applied to other AP device networking.

Optionally, the AP device supports communications in at least three communications bands, such as a first band, a second band, and a third band. The description is made by taking the AP equipment as a three-frequency router, and the first frequency band is assumed to be 2.4g communication frequency band, the second frequency band is assumed to be 5g low-frequency communication frequency band, and the third frequency band is assumed to be 5g high-frequency communication frequency band.

Optionally, the AP device includes at least three interfaces, such as a first interface, a second interface, and a third interface. The first interface is an interface of the access terminal equipment, the second interface is an interface for accessing other AP equipment, and the first interface and the second interface are used as access interfaces for accessing signals. The third interface is used as a forwarding interface for forwarding the accessed signal. The transmission link between the first interface and the terminal device is fronthaul. The communication frequency band supported by the first interface of each AP device is the same. For example, the first interfaces each support all communication bands provided by the AP device. The transmission link between the third interface of one AP device and the second interface of the other AP device is backhaul, and at least two backhaul are established between any two AP devices to respectively support different communication frequency bands.

Illustratively, as shown in fig. 5, based on the three communication bands supported by the existing three-frequency router, the first interface of the AP device supports three communication bands: the first frequency band is 2.4g, the second frequency band is 5g low frequency, and the third frequency band is 5g high frequency. Among them, the 2.4GHz band (i.e., the first band) is narrow due to the bandwidth, and most wireless communication devices operate in the 2.4GHz band. For example, devices such as wireless mice and wireless headphones are all operated in the 2.4GHz frequency band. The channel interference condition of the 2.4GHz frequency band is serious, and the communication efficiency is poor. The bandwidth of 5g high frequency or 5g low frequency is wider, so that the channel interference is smaller, and the communication efficiency can be ensured. Thus, as shown in fig. 5, two backhaul are established between any two AP devices, and support the communication band of the second frequency band and the communication band of the third frequency band, respectively. Or based on the communication frequency band supported by the three-frequency router, three backhaul are established between any two AP devices to support the first frequency band, the second frequency band and the third frequency band respectively.

It will be appreciated that as communication technologies evolve, the communication frequency bands supported by the AP device may vary. Then, the number of communication bands supported by the first interface of the AP device, and the backhaul number and the communication bands of the backhaul between the AP devices may also vary accordingly, which is not limited in this embodiment of the present application.

It should be noted that, the terminal device accesses the Wi-Fi frequency band provided by the AP device by way of wireless connection, and the AP device accesses the Wi-Fi frequency band provided by another AP device by way of wireless connection. Then, the communication link between the terminal device and the AP device and the communication link between the AP devices are Wi-Fi frequency bands, so that the communication frequency bands supported by the corresponding interfaces need to be configured, and the problem of collision of air interfaces caused by the same frequency is avoided. The main AP equipment is accessed to the network equipment, whether the main AP equipment is accessed by wireless connection or wired connection, the used frequency band is a communication frequency band provided by the network equipment, such as Ethernet or cellular network, and the communication frequency band range is different from the frequency band range of the Wi-Fi frequency band. Therefore, the communication frequency band of the communication link between the main AP device and the network device does not need to be considered, and the influence on the communication frequency bands of other communication links in the AP device networking is avoided. Illustratively, as shown in fig. 5, the slave AP device includes a first interface, a second interface, and a third interface, and needs to configure communication bands supported by the three interfaces. The main AP equipment comprises a first interface, a second interface and a network interface, and only the communication frequency bands supported by the first interface and the second interface are needed to be configured, so that the communication frequency bands of the network interface in the main AP equipment are not needed to be considered in the embodiment of the application.

The following describes a networking method of AP devices according to an embodiment of the present application with reference to the accompanying drawings. Fig. 6 is a flow chart of an AP device networking method according to an embodiment of the present application, where the AP device networking method is applied to the AP device networking shown in fig. 5, and as shown in fig. 6, the method may include S601-S604.

S601, a first signal of a first communication band transmitted by a terminal device is received from the AP device 2.

Wherein the slave AP device 2 may be a first forwarding device. The first signal is an uplink signal sent by the terminal equipment. The first communication frequency band is a communication frequency band in which the terminal equipment selects to access the AP equipment and sends uplink signals to the AP equipment. The uplink signal sent by the terminal device is received from the AP device 2 through the first interface, where the first interface supports communication in at least three communication frequency bands, and the communication frequency bands supported by the first interface of each AP device are the same. Assuming a three-frequency router from the AP device 2, the first interface supports communication of a first frequency band of 2.4g, a second frequency band of 5g low frequencies, and a third frequency band of 5g high frequencies.

Optionally, the terminal device determines the first communication frequency band according to the signal intensity, bandwidth range, communication frequency band supported by the terminal device hardware and other conditions of each communication frequency band provided by the AP device which needs to be accessed currently. The first communication frequency band may be any one of a first frequency band, a second frequency band and a third frequency band supported by the first interface. For example, a preset threshold is set, and the terminal device accesses a communication frequency band with signal strength greater than the preset threshold. For another example, if the signal strengths of the plurality of communication frequency bands are all greater than the preset threshold, the terminal device selects the communication frequency band with the largest access bandwidth to access. The bandwidths of the 5g low frequency and the 5g high frequency are the same, and when the signal strength of the two communication frequency bands is larger than a preset threshold value, the terminal equipment can select any one of the 5g low frequency and the 5g high frequency to be accessed. For another example, if the terminal device only supports transmitting signals or receiving signals at 2.4GHz due to hardware condition limitations of the terminal device, the terminal device selects to access a communication band of 2.4 g.

In some embodiments, if the signal strength of the communication band provided by the AP device changes, or due to other factors, the terminal device may switch the accessed communication band. For example, after the terminal device accesses the slave AP device 2 in the second frequency band, due to signal interference, the signal strength of the second frequency band is smaller than the preset threshold, and the terminal device reselects the communication frequency band again based on the selection condition. If the terminal equipment switches to a third frequency band with the signal intensity larger than the preset threshold value.

It should be noted that, the method for selecting the first communication frequency band by the terminal device is only illustrated by way of example, and the embodiment of the present application does not limit the method for selecting the first communication frequency band, and a specific method may refer to the prior art.

Fig. 7 is an example of a scenario in which a terminal device accesses a communication network through the AP device networking manner described in fig. 5. As shown in fig. 7, the terminal device 1, the terminal device 2, and the terminal device 3 together have three terminal devices accessing the wireless communication network provided from the AP device 2. Wherein, the communication of three frequency bands is supported from the first interface of the AP equipment 2, the first frequency band is 2.4g, the second frequency band is 5g low frequency, and the third frequency band is 5g high frequency. Each terminal device selects the respective first communication frequency band to access the slave AP device 2 based on the selection condition of the communication frequency band. As shown in fig. 7, the terminal device 1 accesses in the first frequency band and transmits an uplink signal to the slave AP device 2 in the first frequency band. The terminal device 2 accesses in the second frequency band and transmits an uplink signal to the slave AP device 2 in the second frequency band. The terminal device 3 accesses in the third frequency band and transmits an uplink signal to the slave AP device 2 in the third frequency band. Or it may be understood that the same terminal device accesses the slave AP device 2 through three communication frequency bands respectively due to the change of the communication condition in a period of time.

S602, forwarding the first signal from the AP device 2 to the slave AP device 1 in the second communication band. Accordingly, the first signal of the second communication band transmitted from the AP device 2 is received from the AP device 1.

Optionally, the principle of signal forwarding between AP devices is an error frequency forwarding principle. That is, the communication band of the AP device forwarding interface (i.e., the third interface) forwarding signals is different from the communication band of the access interface (i.e., the first interface and the second interface) access signals. Then, the second communication band is a communication band different from the first communication band in the process of transmitting the signal on the uplink for the same terminal device. Therefore, by adopting the mode of error frequency forwarding, the communication frequency ranges of the transmission link input by the AP equipment and the transmission link output by the AP equipment are ensured to be different, so that the problem of collision of an air interface caused by the fact that the communication frequency ranges of the transmission links are identical is solved. Wherein the slave AP device 1 may be a second forwarding device.

Illustratively, as shown in fig. 7, two forwarding paths are currently established between the slave AP device 2 and the slave AP device 1. The forwarding path 71 supports a third frequency band (i.e., 5g high frequency) and the forwarding path 72 supports a second frequency band (i.e., 5g low frequency). That is, the forwarding interface (i.e., the third interface) of the slave AP device 2 supports the third frequency band and the second frequency band. Then, based on the scenario illustrated in step S601, the communication band of the uplink signal forwarded by the third interface may be determined from the AP device 2 according to the communication band of the uplink signal received by the access interface (i.e. the first interface) based on the error frequency forwarding principle.

For example, receiving the first signal transmitted by the terminal device 1 through the first frequency band from the AP device 2, based on the error frequency forwarding principle, it is necessary to select a communication frequency band different from the first frequency band to forward the first signal transmitted by the terminal device 1. At this time, if neither the communication band supported by the transfer path 71 nor the transfer path 72 is the first band, either one of the transfer path 71 and the transfer path 72 may be selected from the AP device 2 to transfer the first signal transmitted by the terminal device 1. As a scenario shown in fig. 7, it is assumed that the first signal transmitted by the terminal device 1 in the third frequency band via the forwarding path 71 is currently selected from the AP device 2. For another example, the first signal transmitted by the terminal device 2 through the second frequency band is received from the AP device 2. Based on the error frequency forwarding principle, a first signal transmitted by the terminal device 2 needs to be forwarded in a communication frequency band different from the second frequency band. Then, the first signal transmitted by the terminal device 2 is forwarded in the third frequency band via the forwarding path 71 from the AP device 2. For another example, the first signal transmitted by the terminal device 3 through the third frequency band is received from the AP device 2. Based on the error frequency forwarding principle, it is necessary to select a communication frequency band different from the third frequency band to forward the first signal transmitted by the terminal device 3. Then, the first signal transmitted by the terminal device 3 is forwarded in the second frequency band via the forwarding path 72 from the AP device 2.

It can be seen that in the scenario of the above example, in the case where the signal transmitted by the terminal device 1 is forwarded from the AP device 2 in the third frequency band, the signal transmitted by the terminal device 3 can be received from the AP device 2 also in the third frequency band. That is, in the current networking manner, the limitation of the communication frequency band supported by the first interface of the AP device is not constituted.

Accordingly, as shown in fig. 7, an uplink signal forwarded from the third interface of the AP device 2 is received from the second interface of the AP device 1. The uplink signal transmitted by the terminal equipment 1 and the terminal equipment 2 forwarded in the third frequency band and the uplink signal transmitted by the terminal equipment 3 forwarded in the second frequency band are included.

S603, the slave AP device 1 forwards the first signal to the master AP device in the third communication band. Accordingly, the master AP device receives the first signal of the third communication band transmitted from the AP device 1.

Optionally, the principle of signal forwarding between AP devices is an error frequency forwarding principle. Then, as in the scenario shown in fig. 7, the communication band of the first signal received from the second interface of the AP device 1 is different from the communication band of the third interface forwarding the first signal. I.e. the third communication band is a communication band different from the second communication band. The master AP device may be a third forwarding device.

Illustratively, as shown in fig. 7, two forwarding paths are currently established between the slave AP device 1 and the master AP device. Wherein the forwarding path 73 supports a third frequency band and the forwarding path 74 supports a second frequency band. That is, the forwarding interface (i.e., the third interface) of the slave AP device 1 supports the communication bands of the third band and the second band. Then, based on the scenario illustrated in step S602, the communication band of the uplink signal forwarded by the third interface may be determined from the communication band of the uplink signal received by the AP device 1 according to the access interface (i.e. the second interface) based on the error frequency forwarding principle.

For example, two sets of uplink signals forwarded from the AP device 2 through the third frequency band are received from the AP device 1, including an uplink signal sent by the terminal device 1 and an uplink signal sent by the terminal device 2. Based on the principle of error frequency forwarding, a communication frequency band different from the third frequency band needs to be selected to forward the two groups of uplink signals. Then, the two sets of uplink signals are forwarded in the second frequency band via the forwarding path 74 from the AP device 1. For another example, the uplink signal transmitted from the terminal device 3 forwarded from the AP device 2 through the second frequency band is received from the AP device 1. Based on the principle of error frequency forwarding, a communication frequency band different from the second frequency band needs to be selected to forward the uplink signal. Then, the uplink signal transmitted from the terminal device 3 forwarded from the AP device 2 is selected to be forwarded in the third frequency band via the forwarding path 73 from the AP device 1.

Accordingly, as shown in fig. 7, the second interface of the master AP device receives the uplink signal forwarded from the third interface of the AP device 1. The uplink signal transmitted by the terminal equipment 1 and the terminal equipment 2 forwarded in the second frequency band and the uplink signal transmitted by the terminal equipment 3 forwarded in the third frequency band are included.

S604, the master AP device forwards the first signal to the network device.

Optionally, after receiving, through the second interface, the first signal sent by the terminal device forwarded by the AP device 1, the master AP device sends the first signal to the network device through the network interface. And finishing signal transmission of an uplink path of the terminal equipment so that the terminal equipment is accessed to a communication network. Subsequently, each AP device may also perform downlink signal transmission based on the communication frequency band of the uplink path. Wherein the network device may provide a wired communication network or a wireless communication network.

Illustratively, as shown in fig. 7, the uplink signal transmitted from the AP device 1 through the second frequency band forwards the terminal device 1. Then, the master AP device also forwards the downlink signal transmitted from the network device to the terminal device 1 through the second frequency band when forwarding the downlink signal to the slave AP device 1. It can be understood that the communication frequency band of the transmission path is determined by the communication frequency band accessed by the terminal device. Then, after the communication frequency band accessed by the terminal equipment is changed, the communication frequency bands of the uplink path and the downlink path transmission signals correspondingly change.

Thus, through the above steps S601 to S604, the communication band selection of the uplink path of the terminal device to the network device is completed. In the scenario shown in fig. 7, the uplink path of any one of the terminal device 1, the terminal device 2, and the terminal device 3 includes two forwarding paths. Taking the terminal device 1 as an example, the forwarding paths corresponding to the terminal device 1 include a forwarding path 71 and a forwarding path 74. The communication frequency band of the signal transmitted by the forwarding path 71 is a third frequency band, and the communication frequency band of the signal transmitted by the forwarding path 74 is a second frequency band. Then, in the uplink path of the terminal device 1, the problem of collision of the air interface caused by the same communication frequency band of the forwarding path does not occur. And, terminal equipment 1 inserts AP equipment with first frequency channel, and the retransmission of ascending signal is carried out through second frequency channel and third frequency channel by AP equipment, can furthest utilize the empty bandwidth.

Further, the terminal device 1 accesses with 2.4g, and the channel interference of the possible access path is strong. In the process of signal forwarding of the AP equipment, the signal forwarding efficiency and the signal forwarding quality are improved through the 5g high-frequency and 5g low-frequency communication frequency bands with small channel interference. The communication quality and the communication efficiency of the terminal equipment 1 are correspondingly improved, and the networking performance is improved.

That is, the AP devices in the AP device networking all forward signals based on the error frequency forwarding principle, so that the air interface bandwidth can be utilized to the maximum extent, the air interface collision is reduced, and the networking performance is improved.

For example, in the prior art AP networking shown in fig. 4, the communication frequency bands supported by the first interfaces of the AP devices may be different. It is assumed that the terminal device is switched from the slave AP device 2 to the slave AP device 1. During roaming, the terminal device needs to perform frequency modulation and cross-channel scanning, resulting in a card segment of the terminal device service. For example, the terminal device is currently playing video. In the current AP device networking, in the process of roaming from AP device 2 to AP device 1, an abnormal situation that video is stuck and waiting for buffering occurs. And the terminal equipment can not normally play the video again until the terminal equipment is accessed to the slave AP equipment 1 again. Service blocking caused by roaming causes waiting of users and influences user experience.

Based on this, in the AP device networking shown in fig. 5, the embodiments of the present application configure the first interfaces of the AP devices in the AP device networking to support the same communication frequency band, so that the problem of service blocking caused by roaming can be effectively reduced.

For example, as shown in fig. 7, the terminal device 2 accesses the slave AP device 2 in the communication frequency band of the second frequency band, and after the terminal device 2 moves, the Wi-Fi frequency band signal coverage of the slave AP device 2 is exceeded, and the Wi-Fi frequency band signal coverage of the slave AP device 1 is moved. I.e. roaming occurs, requiring access to the slave AP device 1. Based on this, as shown in fig. 8, the communication frequency band supported by the first interface of the AP device 1 and the AP device 2 are the same, and are three communication frequency bands of the first frequency band, the second frequency band, and the third frequency band. Then, the terminal device 2 may be directly switched from the second frequency band provided from the AP device 2 to the second frequency band provided from the AP device 1 during roaming. In the roaming process, the communication frequency band is unchanged, so that frequency hopping and cross-channel scanning are not needed, and the smoothness of the service in the roaming process is ensured. For example, roaming problems occur during the process that the terminal device 2 is playing video. Then, the terminal device 2 can finish the reselection of the network without perception of the user, so that the video is not blocked, and the user experience is improved.

Accordingly, as shown in fig. 8, the slave AP device 1 receives the uplink signal sent by the terminal device 2 in the second frequency band, and forwards the uplink signal sent by the terminal device 2 to the master AP device in the third frequency band.

As shown in fig. 9, an embodiment of the present application discloses a first forwarding device. The first forwarding device 900 may be used to implement the methods described in the above respective method embodiments. By way of example, the first forwarding device 900 may specifically include: receiving section 901 and transmitting section 902. Wherein the receiving unit 901 is configured to support the first forwarding device 900 to perform step S601 in fig. 6; the forwarding unit 902 is configured to support the first forwarding device 900 to perform step S602 in fig. 6. All relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.

Optionally, the first forwarding device 900 shown in fig. 9 may further include a processing unit (not shown in fig. 9) and a storage unit (not shown in fig. 9). The storage unit stores programs or instructions. The program or instructions, when executed by the processing unit, enable the first forwarding device 900 shown in fig. 9 to perform the AP device networking method shown in fig. 6.

As shown in fig. 10, the embodiment of the present application discloses a second forwarding device, and a second forwarding device 1000 may be used to implement the methods described in the above method embodiments. The second forwarding device 1000 may specifically include: the receiving unit 1001. Wherein the receiving unit 1001 is configured to support the second forwarding device 1000 to perform step S602 in fig. 6.

Optionally, the second forwarding device 1000 shown in fig. 10 may further include a forwarding unit 1002 for supporting the second forwarding device 1000 to perform step S603 in fig. 6.

All relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.

Optionally, the second forwarding device 1000 shown in fig. 10 may further include a processing unit (not shown in fig. 10) and a storage unit (not shown in fig. 10). The storage unit stores programs or instructions. The processing unit, when executing the program or instructions, enables the second forwarding device 1000 shown in fig. 10 to perform the AP device networking method shown in fig. 6.

The embodiment of the application also provides a chip system which comprises at least one processor and at least one interface circuit. The processors and interface circuits may be interconnected by wires. For example, the interface circuit may be used to receive signals from other devices. For another example, the interface circuit may be used to send signals to other devices. The interface circuit may, for example, read instructions stored in the memory and send the instructions to the processor. The instructions, when executed by the processor, may cause the terminal device to perform the steps performed by the handset in the above embodiments. Of course, the system-on-chip may also include other discrete devices, which are not particularly limited in accordance with embodiments of the present application.

The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores computer instructions, and when the computer instructions run on the terminal equipment, the terminal equipment executes the related method steps to realize the AP equipment networking method in the embodiment.

The embodiment of the present application further provides a computer program product, which when run on a computer, causes the computer to perform the above related steps to implement the AP device networking method in the above embodiment.

In addition, embodiments of the present application also provide an apparatus, which may be a component or module in particular, which may include a processor and a memory connected; the memory is configured to store computer-executable instructions, and when the apparatus is running, the processor may execute the computer-executable instructions stored in the memory, so that the apparatus executes the AP device networking method in the above method embodiments.

The terminal device, the computer readable storage medium, the computer program product or the chip provided by the embodiments of the present application are used to execute the corresponding method provided above, so that the beneficial effects thereof can be referred to the beneficial effects in the corresponding method provided above, and will not be described herein.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

In the several embodiments provided in the present application, it should be understood that the disclosed method may be implemented in other manners. For example, the above-described embodiments of the terminal device are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via interfaces, modules or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a readable storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned readable storage medium includes: flash memory, removable hard disk, read-only memory, random access memory, magnetic or optical disk, and the like.

The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An AP equipment networking system is characterized by comprising a first forwarding equipment and a second forwarding equipment; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different;

the first forwarding device is configured to receive a first signal in a first communication frequency band;

the first forwarding device is further configured to forward the first signal to the second forwarding device through a communication link supporting a second communication frequency band; the second communication band is different from the first communication band;

the second forwarding device is configured to receive the first signal in the second communication frequency band.

2. The system of claim 1, further comprising a third forwarding device, wherein at least two communication links are established between the second forwarding device and the third forwarding device, and wherein communication bands supported by the communication links between the second forwarding device and the third forwarding device are different;

the second forwarding device is further configured to forward the first signal to the third forwarding device through a communication link supporting a third communication frequency band; the third communication band is different from the second communication band;

the third forwarding device is configured to receive the first signal in the third communication frequency band.

3. The system of claim 1, wherein the system further comprises a controller configured to control the controller,

The first forwarding device is specifically configured to receive the first signal of the first communication band sent by the first terminal device.

4. The system of claim 2, wherein the system further comprises a controller configured to control the controller,

5. The system of claim 4, wherein the system further comprises a controller configured to control the controller,

The second forwarding device is further configured to receive a second signal of the first communication band sent by the first terminal device when the first terminal device moves into a signal coverage area of the second forwarding device.

6. The system of claim 5, wherein the system further comprises a controller configured to control the controller,

The second forwarding device is further configured to forward the second signal to the third forwarding device through a communication link supporting a fourth communication frequency band; the fourth communication band is different from the first communication band.

7. The system of any one of claims 1-6, wherein,

The first forwarding device is further configured to receive a third signal of the second communication frequency band sent by the second terminal device;

The first forwarding device is further configured to forward the third signal to the second forwarding device through a communication link supporting a fifth communication band or the first communication band; the fifth communication band is different from the second communication band.

8. The system of any of claims 2, 4-6, wherein the first forwarding device, the second forwarding device, and the third forwarding device are tri-frequency routers.

9. The system of claim 8, wherein the first communication band is any one of the communication bands supported by the tri-band router.

10. An AP equipment networking method is characterized in that the method is applied to a communication system comprising a first forwarding equipment and a second forwarding equipment; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different; the method comprises the following steps:

The first forwarding device receives a first signal in a first communication frequency band;

The first forwarding device forwards the first signal to the second forwarding device through a communication link supporting a second communication frequency band; the second communication band is different from the first communication band.

11. The method of claim 10, wherein the first forwarding device receives the first signal in a first communications band; comprising the following steps:

the first forwarding device receives the first signal of the first communication frequency band sent by the first terminal device.

12. The method of claim 11, wherein the method further comprises:

The first forwarding device receives a third signal of the second communication frequency band sent by the second terminal device;

the first forwarding device forwards the third signal to the second forwarding device through a communication link supporting a fifth communication frequency band or the first communication frequency band; the fifth communication band is different from the second communication band.

13. The method according to any of claims 10-12, wherein the first forwarding device and the second forwarding device are tri-band routers.

14. The method of claim 13, wherein the first communication band is any one of the communication bands supported by the tri-band router.

15. An AP equipment networking method is characterized in that the method is applied to a communication system comprising a first forwarding equipment and a second forwarding equipment; at least two communication links are established between the first forwarding device and the second forwarding device, and communication frequency bands supported by the at least two communication links are different; the method comprises the following steps:

The second forwarding device receives the first signal in a second communication frequency band; the first signal is a signal which is received by the first forwarding device in a first communication frequency band and forwarded to the second forwarding device through a communication link supporting the second communication frequency band; the second communication band is different from the first communication band.

16. The method of claim 15, wherein the communication system further comprises a third forwarding device, wherein at least two communication links are established between the second forwarding device and the third forwarding device, and wherein communication bands supported by the communication links between the second forwarding device and the third forwarding device are different; the method further comprises the steps of:

The second forwarding device forwards the first signal to the third forwarding device through a communication link supporting a third communication frequency band; the third communication band is different from the second communication band.

17. The method of claim 15, wherein the first signal is a signal of the first communication band transmitted by a first terminal device; the method further comprises the steps of:

And when the first terminal equipment moves to the signal coverage range of the second forwarding equipment, the second forwarding equipment receives a second signal of the first communication frequency band sent by the first terminal equipment.

18. The method of claim 16, wherein the first signal is a signal of the first communication band transmitted by a first terminal device; the method further comprises the steps of:

19. The method of claim 18, wherein the method further comprises:

The second forwarding device forwards the second signal to the third forwarding device through a communication link supporting a fourth communication frequency band; the fourth communication band is different from the first communication band.

20. The method of any of claims 16, 18, 19, wherein the first forwarding device, the second forwarding device, and the third forwarding device are tri-frequency routers.

21. The method of claim 20, wherein the first communication band is any one of the communication bands supported by the tri-band router.

22. A first forwarding device comprising: a processor and a memory coupled to the processor, the memory for storing computer program code, the computer program code comprising computer instructions that, when read from the memory by the processor, cause the first forwarding device to:

receiving a first signal in a first communication frequency band;

Forwarding the first signal to a second forwarding device over a communication link supporting a second communication band; the second communication band is different from the first communication band; and establishing at least two communication links between the first forwarding equipment and the second forwarding equipment, wherein the communication frequency bands supported by the at least two communication links are different.

23. The first forwarding device of claim 22 wherein the first signal is received in a first communications band; comprising the following steps:

and receiving the first signal of the first communication frequency band sent by the first terminal equipment.

24. The first forwarding device of claim 23 wherein the computer instructions, when read from the memory by the processor, further cause the forwarding device to:

Receiving a third signal of the second communication frequency band sent by a second terminal device;

Forwarding the third signal to the second forwarding device over a communication link supporting a fifth communication band or the first communication band; the fifth communication band is different from the second communication band.

25. The first forwarding device of any of claims 22-24, wherein the first forwarding device and the second forwarding device are tri-band routers.

26. The first forwarding device of claim 25 wherein the first communication band is any one of the communication bands supported by the tri-band router.

27. A second forwarding device comprising: a processor and a memory coupled to the processor, the memory for storing computer program code, the computer program code comprising computer instructions that, when read from the memory by the processor, cause the second forwarding device to:

Receiving the first signal in a second communication frequency band; the first signal is a signal which is received by the first forwarding device in a first communication frequency band and forwarded to the second forwarding device through a communication link supporting the second communication frequency band; the second communication band is different from the first communication band; and establishing at least two communication links between the first forwarding equipment and the second forwarding equipment, wherein the communication frequency bands supported by the at least two communication links are different.

28. The second forwarding device of claim 27 wherein at least two communication links are established between the second forwarding device and a third forwarding device, the communication links between the second forwarding device and the third forwarding device supporting different communication bands; when the processor reads the computer instructions from the memory, the processor further causes the second forwarding device to:

forwarding the first signal to the third forwarding device over a communication link supporting a third communication band; the third communication band is different from the second communication band.

29. The second forwarding device of claim 27 wherein the first signal is a signal of the first communication band transmitted by a first terminal device; when the processor reads the computer instructions from the memory, the processor further causes the second forwarding device to:

And when the first terminal equipment moves to the signal coverage range of the second forwarding equipment, receiving a second signal of the first communication frequency band sent by the first terminal equipment.

30. The second forwarding device of claim 28 wherein the first signal is a signal of the first communication band transmitted by a first terminal device; when the processor reads the computer instructions from the memory, the processor further causes the second forwarding device to:

31. The second forwarding device of claim 30 wherein the computer instructions, when read from the memory by the processor, further cause the second forwarding device to:

Forwarding the second signal to the third forwarding device over a communication link supporting a fourth communication band; the fourth communication band is different from the first communication band.

32. The second forwarding device of any of claims 28, 30, 31 wherein the first forwarding device, the second forwarding device, and the third forwarding device are tri-band routers.

33. The second forwarding device of claim 32 wherein the first communication band is any one of the communication bands supported by the tri-band router.