CN113950098A

CN113950098A - AP equipment networking method, AP equipment and system

Info

Publication number: CN113950098A
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: 2022-01-18

Abstract

The application provides an AP equipment networking method, AP equipment and a system; the method and the device can simultaneously support signal forwarding in at least two communication frequency bands, avoid collision of an air interface of a forwarding path based on a frequency error forwarding principle, and improve communication quality and 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 communication technologies, and in particular, to an AP device networking method, an AP device, and a system.

Background

With the development of wireless communication technology, on the basis of a single-frequency router supporting a 2.4gWi-Fi frequency band, a triple-frequency router capable of simultaneously supporting three Wi-Fi frequency bands of 2.4g/5g low frequency/5 g high frequency is provided. The three-frequency router can be configured with different access frequency bands and output frequency bands so as to solve the problem of collision of air interfaces. For example, a tri-band router contains interface 1, interface 2 and interface 3. The interface 1 is used for accessing 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. The interface 3 is for transmitting signals to other AP devices. The frequency band supported by the interface 3 is the output frequency band. The frequency bands supported by the interface 1 and the interface 3 are different, and the frequency bands supported by the interface 2 and the interface 3 are the same.

Further, a distributed Wi-Fi technology can be adopted, a plurality of three-frequency routers form a communication network through Wi-Fi links, and the routers in the communication network use the same Service Set Identifier (SSID), so that the Wi-Fi signal coverage of the communication network is expanded. However, in the distributed networking formed by the three-frequency routers, although the access frequency band and the output frequency band of each three-frequency router are different, the output frequency bands of the three-frequency routers are still the same. For example, a triple-band router 1 is connected to a triple-band router 2, and a frequency band supported by an interface 2 of the triple-band router 2 is the same as a frequency band supported by an interface 3, which results in that the interface 3 of the triple-band router 1 is the same as the frequency band supported by the interface 3 of the triple-band router 2. Namely, the output frequency bands of the three-frequency router 1 and the three-frequency router 2 are the same. Therefore, the scheme still causes the collision of the air interface, and leads to poor communication effect of the terminal equipment.

For this reason, the output frequency bands of two adjacent three-frequency routers can be set to be different. 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 triple-frequency router are different. For example, the triple-band router 1 is connected to the triple-band router 2, and the frequency band supported by the interface 2 of the triple-band router 2 is different from the frequency band supported by the interface 3, so that the frequency band supported by the interface 3 of the triple-band router 1 is different from the frequency band supported by the interface 3 of the triple-band router 2. That is, the output frequency bands of the three-frequency router 1 and the three-frequency router 2 are different. Therefore, the scheme avoids collision of air interfaces. 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. This may result in different frequency bands being supported by the first interface of different tri-band routers. If the terminal equipment moves, the terminal equipment goes beyond the Wi-Fi signal coverage range of a certain three-frequency router which is connected with the terminal equipment and enters the Wi-Fi signal coverage range 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 AP equipment networking system can simultaneously support the forwarding of signals in at least two communication frequency bands, avoid the collision problem of an air interface of a forwarding path based on a frequency error forwarding principle, and improve the communication quality and the communication efficiency of terminal equipment.

In order to achieve the purpose, the technical scheme is as follows:

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. 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. A first forwarding device is configured to receive a first signal in a first communications band. The first forwarding device is also used for forwarding 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. And a second forwarding device for receiving the first signal at a second communication frequency band.

Wherein, 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, that is, the slave AP device 2 forwards the received signal to the slave AP device 1 through 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 forwarding signals between AP devices is an error frequency forwarding principle. That is, the communication frequency band in which the AP device forwards signals is different from the communication frequency band in which signals are accessed.

In this way, the first forwarding device may select, based on the first communication frequency band of the received first signal, a forwarding path that supports a second communication frequency band different from the first communication frequency band, from the at least two selectable forwarding paths, and 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 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 second forwarding device is further used for forwarding the first signal to the third forwarding device through a communication link supporting a third communication frequency band; the third communication frequency band is different from the second communication frequency band. A third forwarding device for receiving the first signal at a third communication frequency band.

Wherein, 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 different communication frequency bands.

Then, the second forwarding device may select, based on the second communication frequency band of the received first signal, a forwarding path that supports a third communication frequency band different from the second communication frequency band, from the at least two selectable forwarding paths, and forward the first signal to a third forwarding device.

That is, in the communication system including the first forwarding device, the second forwarding device and the third forwarding device, in the process of transmitting the first signal, two signal forwarding processes are passed, and the 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 a possible implementation manner, the first forwarding device is specifically configured to receive a first signal of a first communication frequency 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 for accessing the terminal device, the second interface is an interface for accessing other AP devices, 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 signals.

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

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

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

Optionally, the communication frequency bands supported by the first interfaces of the AP devices are the same. For example, the first interface supports all communication bands provided by the AP device.

Optionally, the first forwarding device, the second forwarding device, and the third forwarding device are triple-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. The first interface may then support the first frequency band, the second frequency band and the third frequency band. That is, the first communication band is any one of the communication bands supported by the triple-band router.

Illustratively, the terminal device 2 accesses the slave AP device 2 in the communication frequency band of the second frequency band, and after moving, the terminal device 2 moves beyond the coverage of the Wi-Fi frequency band signal of the slave AP device 2 to the coverage of the Wi-Fi frequency band signal of the slave AP device 1. I.e. roaming has occurred, requiring access to the slave AP device 1. Based on this, the communication frequency bands supported by the first interface of the slave AP device 1 and the slave AP device 2 are the same, and are three communication frequency bands, namely a first frequency band, a second frequency band and a third frequency band. Then, during roaming, terminal device 2 may directly switch from the second frequency band provided by AP device 2 to the second frequency band provided by AP device 1. In the roaming process, the communication frequency range is not changed, frequency hopping and cross-channel scanning are not needed, and the smoothness of the service in the roaming process is ensured. For example, in the process of playing video by the terminal device 2, a roaming problem occurs. Then, the terminal device 2 can complete network reselection without sensing by the user, so that video blockage is not caused, and user experience is improved.

In a possible implementation manner, 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 communications band is different from the first communications band.

Illustratively, after roaming occurs, 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 a possible implementation manner, 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 used for forwarding a 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.

Illustratively, the slave AP device 1 receives the uplink signal 1 transmitted by the terminal device 1 in the first frequency band, and forwards the uplink signal 1 in the third frequency band (i.e., the second communication frequency band). The slave AP device 1 may further 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 to say, 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 transmits the signal of the terminal device 1 in a certain communication band, the AP device can similarly receive the signal transmitted by another terminal device in the communication band.

In a second aspect, the present application provides an AP device networking method, where the method is applied in 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 the 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 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.

In one possible implementation, a first forwarding device receives a first signal in a first communication frequency band; the method comprises 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: and the first forwarding equipment receives a third signal of the second communication frequency band sent by the second terminal equipment. 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.

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

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

In addition, the technical effect of the AP device networking method according to the second aspect may refer to the technical effect of the AP device networking system according to the first aspect, and is not described herein again.

In a third aspect, the present application provides an AP device networking method, where the method is applied in 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 the 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 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 a possible implementation manner, 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 following steps: the second forwarding device forwards the first signal to a third forwarding device through a communication link supporting a third communication frequency band; the third communication frequency band is different from the second communication frequency band.

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

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

In a possible implementation manner, the first forwarding device, the second forwarding device, and the third forwarding device are triple-band routers.

In addition, the technical effect of the AP device networking method according to the third aspect may refer to the technical effect of the AP device networking system according to the first aspect, and is not described herein again.

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 including computer instructions that, when read from the memory by the processor, cause the first forwarding device to perform operations comprising: a first signal is received in a first communications band. Forwarding the first signal to a second forwarding device over a communication link supporting a second communication frequency band; the second communication frequency band is different from the first communication frequency band; 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.

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

In one possible implementation, the computer instructions, when read from the memory by the processor, further cause the forwarding device to: and receiving a third signal of a second communication frequency band sent by the second terminal equipment. Forwarding the third signal to the second forwarding device over 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.

In addition, for the technical effect of the first forwarding device in the fourth aspect, reference may be made to the technical effect of the AP device networking system in the first aspect, and details are not repeated here.

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 including computer instructions that, when read from the memory by the processor, cause the second forwarding device to perform the following: receiving a first signal at 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 is forwarded to the second forwarding device through a communication link supporting a second communication frequency band; the second communication frequency band is different from the first communication frequency band; 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.

In a 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; the computer instructions, when read from the memory by the processor, further cause the second forwarding device to: forwarding the first signal to a third forwarding device over a communication link supporting a third communication frequency band; the third communication frequency band is different from the second communication frequency band.

In a possible implementation manner, the first signal is a signal of a first communication frequency band transmitted by the first terminal device; the computer instructions, when read from the memory by the processor, further cause 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.

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

In addition, the technical effect of the second forwarding device in the fifth aspect may refer to the technical effect of the AP device networking system in the first aspect, and is not described herein again.

In a sixth aspect, the present application provides a first forwarding device having a function of implementing the AP device networking method as described in the second aspect and any one of the possible implementations thereof. The function 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 described in the third aspect and any possible implementation manner. The function 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, which includes computer instructions that, when executed 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 implementation manners.

In a ninth aspect, the present application provides a computer-readable storage medium, which includes computer instructions, when the computer instructions are executed on a second forwarding device, causing 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 implementation manners thereof.

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 execute the AP device networking method according to any one of the second aspect and any one of the possible implementation manners.

In an eleventh aspect, the present application provides a computer program product, which when run on a second forwarding device, causes the second forwarding device to execute the AP device networking method according to any one of the third aspect and any one of the possible implementation manners of the third aspect.

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

In a thirteenth aspect, an embodiment of the present application provides a chip system, which includes at least one processor and at least one interface circuit, where the at least one interface circuit is configured to perform a transceiving 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 possible implementation manner of the second aspect to the third aspect.

Drawings

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

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

fig. 3 is a first schematic diagram illustrating 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 illustrating a networking mode 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 mode provided in an embodiment of the present application;

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

fig. 7 is a first application scenario diagram of a networking mode of an AP device according to an embodiment of the present application;

fig. 8 is a schematic view of an application scenario in which an AP device networking mode is applied according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a first forwarding device provided in 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 AP device networking method, AP device, and system provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

The terms "comprising" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly 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 "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), worldwide interoperability for microwave access (world wide access, WIMAX) communication systems, Public Land Mobile Network (PLMN) systems, new generation radio systems (NR 5, 5) or the like for future communications systems, or for future NR systems.

Fig. 1 is a schematic diagram of a network architecture of a communication system according to an embodiment of the present application. It should be noted that some scenarios in the embodiment of the present application are described 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 with 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, where the AP device directly connected to the communication network 300 is a master AP device, and the other AP devices are slave AP devices. The communication system comprises 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 various wireless network clients (e.g., the terminal device 200) connected to a Wi-Fi network provided by the AP device 100 together, and then access to the communication network 300. As shown in fig. 1, the master AP device accesses to 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., a Wi-Fi network) for connection with other AP devices or the terminal device 200. Such as one or more slave AP devices and one or more terminal devices 200, to access the corresponding AP device 100 by means of wireless connection.

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

It is understood that, as the communication technology develops, the communication frequency band supported by the wireless router may change, and the embodiment of the present application does not limit this.

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 accessing the 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 air interfaces (i.e., air interfaces) caused by the fact that the communication frequency bands of the path of the access terminal device 200 and the forwarding path are the same. For another example, as in the serial networking in fig. 1, communication frequency bands supported by interfaces of different AP devices 100 are adjusted, so that communication frequency bands of forwarding paths of different AP devices 100 are different, thereby avoiding the problem of collision of air interfaces due to the fact that the communication frequency bands of the forwarding paths are the same.

The terminal device 200 referred to in the embodiments of the present application may include, but is not limited to, an in-vehicle device, a wearable device, a computing device, a chip built in the computing device, or other processing device connected to a wireless modem; the wireless communication terminal may further include a cellular phone (cellular phone), a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a smart phone (smart phone), a Personal Digital Assistant (PDA) computer, a tablet computer, a laptop computer (laptop computer), a wireless modem (modem), a handheld device (hand), a Wireless Local Loop (WLL) station, an artificial intelligence (intelligent identity) terminal, and other terminal devices. The terminal device 200 may also be a Subscriber Unit (SU), a 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), a Machine Type Communication (MTC) terminal (terminal), a client terminal device (CPE), etc., which is not limited in this embodiment. In the embodiment of the present application, the apparatus for implementing the function of the terminal device 200 may be a terminal device, or may be an apparatus (such as a system on chip in the terminal device) that supports the terminal device 200 to implement the function.

The communication network 300 according to the embodiment of the present application 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 (RAN) node (or device). For example, the communication network 300 may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-a), such as a conventional macro eNB and a micro eNB in a heterogeneous network scenario, or may also include a next generation Node B (gNB) in a fifth generation mobile communication technology (5G) New Radio (NR) system, or may also include a Transmission Reception Point (TRP), a home base station (e.g., a home NodeB or home B, a Base Band Unit (BBU), a base band pool (BBU) or the like, or may also include a centralized radio access network (ran) in a cloud access network (cloud) system, CU), Distributed Unit (DU), etc., which are not limited in this embodiment.

It should be noted that the term "communication" in the embodiments 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 illustrating a hardware structure of a communication device according to an embodiment of the present application. The communication device comprises at least one processor 201, a communication line 202, a memory 203 and at least one communication interface 204. Wherein the memory 203 may also be comprised in the processor 201.

The processor 201 may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The communication link 202 may include a path for transmitting information between the aforementioned components.

A communication interface 204 for communicating with other devices. In the embodiments of the present application, the communication interface may be a module, a circuit, a bus, an interface, a transceiver, or other apparatuses capable of implementing a communication function, and is used for communicating with other devices. Optionally, when the communication interface is a transceiver, the transceiver may be a stand-alone transmitter operable to transmit information to other devices, and the transceiver may also be a stand-alone receiver operable to receive information from other devices. The transceiver may also be a component that integrates information sending and receiving functions, and the embodiment of the present application does not limit the specific implementation of the transceiver.

The memory 203 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of illustration, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and 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. The memory may be self-contained and coupled to the processor 201 via a communication link 202. The memory 203 may also be integrated with the processor 201.

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

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, instructions, computer programs, or by other names, which are not specifically limited in the embodiments of the present application.

In particular implementations, processor 201 may include one or more CPUs such as CPU0 and CPU1 in fig. 2, for example, as one embodiment.

In particular implementations, a communication device may include multiple processors, such as processor 201 and processor 205 in fig. 2, for example, as an embodiment. Each of these processors may be a single-core (single-CPU) processor or 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 does not limit the type of the communication device. The AP device may be a device having a similar structure as fig. 2.

A triple-band router is exemplified as the AP device 100. 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 be given by taking an example in which the first frequency band is a 2.4g communication frequency band, the second frequency band is a 5g low-frequency communication frequency band, and the third frequency band is a 5g high-frequency communication frequency band.

First, a networking method of an AP device in the prior art is introduced. As shown in fig. 3, the AP device networking includes three serially networked AP devices, which are 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 device and the terminal device is a fronthaul line (fronthaul), and the transmission link between the AP device is a backhaul line (backhaul). For example, as shown in fig. 3, the slave AP device includes three interfaces, interface 1, interface 2, and interface 3. The interface 1 is used for accessing terminal equipment, and a transmission link between the terminal equipment and the interface 1 is fronthaul. The interface 2 is used for connecting with other AP devices and receiving the forwarding 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 a signal to the interface 2 of the slave AP device 1 through the interface 3 using backhaul.

In the AP device networking mode shown in fig. 3, in order to avoid collision of air interfaces caused by the fact that the communication frequency bands of frontaul and backhaul of the AP device are the same, a configuration mode is proposed, in which the communication frequency bands supported by the interface 1 and the interface 3 configured with the AP device are different. For example, interface 1 is configured to support a first frequency band and a second frequency band, interface 3 supports a third frequency band, and interface 2 also supports the third frequency band.

However, in the networking mode shown in fig. 3, based on the current configuration mode, the two backhaul includes 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, and results in poor communication effect of the terminal device.

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

However, as shown in fig. 4, since the communication band supported by the AP device is limited, it is ensured that the communication bands of different backhaul in the transmission path of the terminal device are different. However, the configurable communication frequency band of the interface 1 of the AP device is limited, so that the communication frequency bands supported by the interfaces 1 of different AP devices may be different. For example, the interface 1 of the slave AP device 2 supports access to the first frequency band and the third frequency band, and the interface 1 of the slave AP device 1 supports the first frequency band and the second frequency band. It is assumed that the terminal device selects the slave AP device 2 to be accessed by the third frequency band. Due to the limited service range of the AP device (i.e., Wi-Fi signal coverage), 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 to 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 frequency hopping and cross-channel scanning to access the interface 1 of the slave AP device 1 during roaming from the slave AP device 2 to the slave AP device 1, resulting in traffic congestion.

Fig. 5 is a diagram illustrating an AP device networking mode according to an embodiment of the present application. The AP device networking 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 master 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 is understood that fig. 5 only shows two slave AP devices by way of example, and that slave AP device 2 may be connected with more slave AP devices, such as slave AP device 3, slave AP device 4, etc.

It should be noted that, in the embodiment of the present application, a serial networking manner of the AP device is described, because in the serial networking manner, a collision problem of an air interface caused by co-channel interference is easily generated in a forwarding path. It is to be understood that the AP device networking mode is not limited to serial networking, and other networking modes may also exist. The following AP device networking method may also be applied to other AP device networking.

Optionally, the AP device supports communication in at least three communication frequency bands, such as a first frequency band, a second frequency band, and a third frequency band. The AP device is taken as a three-frequency router for explanation, and it is assumed that the first frequency band is a 2.4g communication frequency band, the second frequency band is a 5g low-frequency communication frequency band, and the third frequency band is a 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 for accessing the terminal device, the second interface is an interface for accessing other AP devices, 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 signals. The transmission link between the first interface and the terminal device is fronthaul. The first interfaces of the AP devices support the same communication frequency band. For example, the first interface supports all communication bands provided by the AP device. A transmission link between the third interface of one AP device and the second interface of another AP device is backhaul, and at least two backhaul are established between any two AP devices, and support different communication frequency bands, respectively.

Illustratively, as shown in fig. 5, based on three communication bands supported by the existing three-band 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. Of these, the 2.4GHz band (i.e., the first band) is narrow due to the narrow bandwidth, and most wireless communication devices operate in the 2.4GHz band. For example, devices such as a keyboard and mouse, a wireless headset and the like all operate in a 2.4GHz frequency band. The channel interference situation of the 2.4GHz frequency band is serious, and the communication efficiency is poor. The 5g high frequency or 5g low frequency has less channel interference due to wider bandwidth, and can ensure the communication efficiency. Therefore, as shown in fig. 5, two backhaul devices 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, three backhaul are established between any two AP devices directly based on the communication frequency bands supported by the three-frequency router, and the backhaul supports the first frequency band, the second frequency band and the third frequency band, respectively.

It is understood that, with the development of communication technology, the communication frequency band supported by the AP device may change accordingly. Then, the communication frequency band supported by the first interface of the AP device, the number of backhaul between the AP device and the AP device, and the communication frequency band of backhaul may also be changed, which is not limited in this embodiment of the application.

It should be noted that the terminal device accesses the Wi-Fi frequency band provided by the AP device through a wireless connection, and the AP device also accesses the Wi-Fi frequency band provided by another AP device through a wireless connection. Then, since the communication links between the terminal device and the AP device and the communication links between the AP devices both use Wi-Fi frequency bands, the communication frequency bands supported by the corresponding interfaces need to be configured, so as to avoid collision of air interfaces caused by the same frequency. The main AP equipment is accessed to the network equipment, and the used frequency band is the communication frequency band of the Ethernet or cellular network and the like provided by the network equipment no matter the access is realized in a wireless connection or wired connection mode, 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 communication frequency bands supported by the three interfaces need to be configured. The main AP device includes a first interface, a second interface, and a network interface, and only needs to configure communication frequency bands supported by the first interface and the second interface, and in this embodiment, the communication frequency band of the network interface in the main AP device does not need to be considered.

Hereinafter, a method for AP device networking according to an embodiment of the present application will be described in detail with reference to the accompanying drawings. Fig. 6 is a schematic flowchart of an AP device networking method provided in 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, receiving, from the AP device 2, a first signal of a first communication band transmitted by the terminal device.

The slave AP device 2 may be a first forwarding device. The first signal is an uplink signal sent by the terminal device. The first communication frequency band is a communication frequency band for selecting access to the AP equipment for the terminal equipment and sending an uplink signal to the AP equipment. The uplink signal sent by the terminal device is received from the AP device 2 through the first interface, the first interface supports communication in at least three communication frequency bands, and the communication frequency bands supported by the first interfaces of the AP devices are the same. Assuming that the slave AP device 2 is a three-band router, the first interface supports communication in a first band of 2.4g, a second band of 5g low frequency, and a third band of 5g high frequency.

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

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 access communication band. For example, after the terminal device accesses the slave AP device 2 in the second frequency band, due to signal interference, if the signal strength of the second frequency band is smaller than the preset threshold, the terminal device reselects the communication frequency band based on the above selection condition again. And if the terminal equipment is switched to access the 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 an exemplary illustration, 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 exemplary scenario in which the terminal device accesses the communication network through the AP device networking manner described in fig. 5. As shown in fig. 7, three terminal apparatuses, that is, the terminal apparatus 1, the terminal apparatus 2, and the terminal apparatus 3, access the wireless communication network provided from the AP apparatus 2. The first interface of the slave AP device 2 supports communication in three frequency bands, where 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 a respective first communication band to access the slave AP device 2 based on the selection condition of the communication 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. Alternatively, it may be understood that the same terminal device accesses the slave AP device 2 through three communication frequency bands respectively in a period of time due to a change in communication conditions.

S602, the slave AP device 2 forwards the first signal to the slave AP device 1 in the second communication frequency 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 forwarding signals between AP devices is an error frequency forwarding principle. That is, the communication frequency band of the AP device forwarding interface (i.e., the third interface) forwarding signals is different from the communication frequency band of the access interface (i.e., the first interface and the second interface) access signals. Then, in the process of uplink signal transmission for the same terminal device, the second communication frequency band is a communication frequency band different from the first communication frequency band. Therefore, the communication frequency bands of the transmission link input by the AP equipment and the transmission link output by the AP equipment are different in a wrong frequency forwarding mode, and the problem of collision of air interfaces caused by the fact that the communication frequency bands of the transmission links are the same is solved. The slave AP device 1 may be a second forwarding device.

Illustratively, as shown in fig. 7, two forwarding paths have been established between the current slave AP device 2 and the slave AP device 1. The forwarding path 71 supports the third frequency band (i.e., 5g high frequency) and the forwarding path 72 supports the 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, in the scenario based on the above example of step S601, the slave AP device 2 may determine, according to the communication frequency band of the uplink signal received by the access interface (i.e. the first interface), the communication frequency band of the uplink signal forwarded by the third interface based on the principle of frequency error forwarding.

For example, a first signal transmitted by the terminal device 1 through the first frequency band is received from the AP device 2, and based on the principle of frequency error forwarding, a communication frequency band different from the first frequency band needs to be selected to forward the first signal transmitted by the terminal device 1. At this time, if the communication frequency band supported by the forwarding path 71 and the forwarding path 72 is not the first frequency band, the AP device 2 may select any one of the forwarding path 71 and the forwarding path 72 to forward the first signal transmitted by the terminal device 1. As in the scenario shown in fig. 7, it is assumed that the first signal transmitted by terminal apparatus 1 is currently selected to be forwarded in the third frequency band via forwarding path 71 from AP apparatus 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 principle of error frequency forwarding, a communication frequency band different from the second frequency band needs to be selected to forward the first signal sent by the terminal device 2. Then, the first signal transmitted by the terminal device 2 is forwarded in the third frequency band via the forwarding path 71 selected 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 principle of frequency error forwarding, a communication frequency band different from the third frequency band needs to be selected to forward the first signal sent 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 selected 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 terminal device 1 is forwarded from AP device 2 in the third frequency band, the signal transmitted by terminal device 3 can be received from AP device 2 in the third frequency band. That is, in the current networking mode, the limitation on the communication frequency band supported by the first interface of the AP device is not formed.

Accordingly, as shown in fig. 7, the 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 signals transmitted by the terminal devices 1 and 2 forwarded in the third frequency band and the uplink signals transmitted by the terminal device 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 frequency 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 forwarding signals between AP devices is an error frequency forwarding principle. Then, in the scenario shown in fig. 7, the communication frequency band of the first signal received from the second interface of the AP device 1 is different from the communication frequency band of the third interface for forwarding the first signal. I.e. the third communication band is a different communication band than the second communication band. Wherein, the master AP device may be a third forwarding device.

Illustratively, as shown in fig. 7, two forwarding paths have been established between the current slave AP device 1 and the master AP device. The forwarding path 73 supports the third frequency band, and the forwarding path 74 supports the 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, in the scenario illustrated in step S602 above, the slave AP device 1 may determine, according to the communication frequency band of the uplink signal received by the access interface (i.e., the second interface), the communication frequency band of the uplink signal forwarded by the third interface based on the principle of frequency error forwarding.

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

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 signals transmitted by the terminal device 1 and the terminal device 2 forwarded in the second frequency band and the uplink signals transmitted by the terminal device 3 forwarded in the third frequency band are included.

S604, the main AP equipment transmits the first signal to the network equipment.

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

Illustratively, as shown in fig. 7, the uplink signal transmitted by the terminal device 1 is forwarded from the AP device 1 through the second frequency band. Then, when forwarding the downlink signal sent by the network device to the terminal device 1 to the slave AP device 1, the master AP device also forwards the downlink signal through the second frequency band. It is 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 device is changed, the communication frequency bands of the uplink path and the downlink path for transmitting signals are correspondingly changed.

Therefore, the selection of the communication band of the uplink path where the terminal device accesses the network device is completed through the above steps S601 to S604. In the scenario shown in fig. 7, the uplink path of any one of terminal device 1, terminal device 2, and terminal device 3 includes two forwarding paths. Taking terminal device 1 as an example, the forwarding path corresponding to terminal device 1 includes forwarding path 71 and forwarding path 74. The communication frequency band of the signal transmitted by the forwarding path 71 is the third frequency band, and the communication frequency band of the signal transmitted by the forwarding path 74 is the second frequency band. Then, in the uplink path of the terminal device 1, the problem of collision of air interfaces caused by the same communication frequency band of the forwarding path does not occur. In addition, the terminal device 1 accesses the AP device in the first frequency band, and the AP device forwards the uplink signal through the second frequency band and the third frequency band, so that the air interface bandwidth can be utilized to the maximum extent.

Further, the terminal device 1 accesses at 2.4g, and the channel interference of the access path may be strong. In the process of forwarding the signals by the AP equipment, the signals are forwarded through 5g high-frequency and 5g low-frequency communication frequency bands with small channel interference, so that the signal forwarding efficiency and the signal forwarding quality are improved. Correspondingly, the communication quality and the communication efficiency of the terminal equipment 1 are improved, and the networking performance is improved.

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

For example, in the AP networking in the prior art as 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 connected to the slave AP device 1 by switching from the slave AP device 2. 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 a video. In the current AP device networking, in the process that the terminal device roams from the AP device 2 to the AP device 1, an abnormal situation occurs in which the video is blocked and waits for caching. And the terminal equipment can not normally play the video again until the terminal equipment is accessed into the slave AP equipment 1 again. The traffic jam caused by roaming causes the user to wait, which affects the user experience.

Based on this, in the AP device networking shown in fig. 5, the first interfaces of the AP devices in the AP device networking are all configured to support the same communication frequency band, so that the problem of traffic congestion caused by roaming can be effectively reduced.

Illustratively, 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 moving, the terminal device 2 moves beyond the coverage of the Wi-Fi frequency band signal of the slave AP device 2 to the coverage of the Wi-Fi frequency band signal of the slave AP device 1. I.e. roaming has occurred, requiring access to the slave AP device 1. Based on this, as shown in fig. 8, the communication frequency bands supported by the first interface of the slave AP device 1 and the slave AP device 2 are the same, and are three communication frequency bands, namely a first frequency band, a second frequency band and a third frequency band. Then, during roaming, terminal device 2 may directly switch from the second frequency band provided by AP device 2 to the second frequency band provided by AP device 1. In the roaming process, the communication frequency range is not changed, frequency hopping and cross-channel scanning are not needed, and the smoothness of the service in the roaming process is ensured. For example, in the process of playing video by the terminal device 2, a roaming problem occurs. Then, the terminal device 2 can complete network reselection without sensing by the user, so that video blockage is not caused, and user experience is improved.

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

As shown in fig. 9, the embodiment of the present application discloses a first forwarding device. The first forwarding apparatus 900 may be used to implement the methods described in the above respective method embodiments. Illustratively, the first forwarding device 900 may specifically include: a receiving unit 901 and a forwarding unit 902. Wherein, the receiving unit 901 is configured to support the first forwarding device 900 to execute 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 referred to the functional description of the corresponding functional module, and are not described herein again.

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, an embodiment of the present application discloses a second forwarding device, and the second forwarding device 1000 may be configured to implement the methods described in the above method embodiments. For example, the second forwarding device 1000 may specifically include: a receiving unit 1001. Wherein, the receiving unit 1001 is configured to support the second forwarding device 1000 to execute step S602 in fig. 6.

Optionally, the second forwarding device 1000 shown in fig. 10 may further include a forwarding unit 1002, configured to support the second forwarding device 1000 to execute step S603 in fig. 6.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

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 program or instructions, when executed by the processing unit, enable the second forwarding device 1000 shown in fig. 10 to perform the AP device networking method shown in fig. 6.

Embodiments of the present application further provide a chip system, where the chip system includes at least one processor and at least one interface circuit. The processor and the interface circuit may be interconnected by wires. For example, the interface circuit may be used to receive signals from other devices. As another example, the interface circuit may be used to send signals to other devices. Illustratively, the interface circuit may 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 chip system may further include other discrete devices, which is not specifically limited in this embodiment of the present application.

An embodiment of the present application further provides a computer-readable storage medium, where a computer instruction is stored in the computer-readable storage medium, and when the computer instruction runs on a terminal device, the terminal device is enabled to execute the relevant method steps to implement the AP device networking method in the foregoing embodiment.

The embodiment of the present application further provides a computer program product, which when running on a computer, causes the computer to execute the above related steps, so as 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 specifically a component or a module, and may include a processor and a memory connected to each other; the memory is used for storing computer execution instructions, and when the apparatus runs, the processor may execute the computer execution instructions stored in the memory, so as to enable the apparatus to execute the AP device networking method in the foregoing method embodiments.

In addition, the terminal device, the computer-readable storage medium, the computer program product, or the chip provided in the embodiments of the present application are all configured to execute the corresponding method provided above, so that the beneficial effects achieved by the terminal device, the computer-readable storage medium, the computer program product, or the chip may refer to the beneficial effects in the corresponding method provided above, and are not described herein again.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

In the embodiments provided in the present application, it should be understood that the disclosed method can be implemented in other ways. For example, the above-described terminal device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of modules or units through some interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a readable storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute 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 drive, read only memory, random access memory, magnetic or optical disk, and the like.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure 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 in that the 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 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 frequency band is different from the first communication frequency band;

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

2. The system according to claim 1, wherein 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 the communication links between the second forwarding device and the third forwarding device support different communication frequency bands;

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 frequency band is different from the second communication frequency band;

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

3. The system according to claim 1 or 2,

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

4. The system of claim 3,

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

5. The system of claim 4,

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

6. The system according to any one of claims 1 to 5,

the first forwarding device is further configured to receive a third signal of the second communication frequency band sent by a 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 frequency band or the first communication frequency band; the fifth communication frequency band is different from the second communication frequency band.

7. The system of any of claims 1-6, wherein the first forwarding device, the second forwarding device, and the third forwarding device are tri-band routers.

8. The system of claim 7, wherein the first communication band is any one of the communication bands supported by the tri-band router.

9. The AP equipment networking method is applied to a communication system comprising 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 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 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 communications band is different from the first communications band.

10. The method of claim 9, wherein the first forwarding device receives a first signal in a first communications band; the method comprises the following steps:

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

11. The method of claim 10, further comprising:

the first forwarding device receives a third signal of the second communication frequency band sent by a 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 frequency band is different from the second communication frequency band.

12. The method of any of claims 9-11, wherein the first forwarding device and the second forwarding device are tri-band routers.

13. The method of claim 12, wherein the first communication band is any one of the communication bands supported by the tri-band router.

14. The AP equipment networking method is applied to a communication system comprising 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 supported by the at least two communication links are different; the method comprises the following steps:

the second forwarding device receives the first signal at 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 is forwarded to the second forwarding device through a communication link supporting the second communication frequency band; the second communications band is different from the first communications band.

15. The method according to claim 14, wherein 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 the communication links between the second forwarding device and the third forwarding device support different communication frequency bands; the method further comprises the following steps:

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 frequency band is different from the second communication frequency band.

16. The method according to claim 14 or 15, wherein the first signal is a signal of the first communication frequency band transmitted by a first terminal device; the method further comprises the following steps:

and when the first terminal device moves to a signal coverage range of the second forwarding device, the second forwarding device receives a second signal of the first communication frequency band, which is sent by the first terminal device.

17. The method of claim 16, further comprising:

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

18. The method of any of claims 14-17, wherein the first forwarding device, the second forwarding device, and the third forwarding device are tri-band routers.

19. The method of claim 18, wherein the first communication band is any one of the communication bands supported by the tri-band router.

20. 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 frequency band; the second communication frequency band is different from the first communication frequency band; 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.

21. The first forwarding device of claim 20 wherein the first signal is received in a first communications band; the method comprises the following steps:

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

22. The first forwarding device of claim 21 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 frequency band or the first communication frequency band; the fifth communication frequency band is different from the second communication frequency band.

23. The first forwarding device of any one of claims 20-22 wherein the first forwarding device and the second forwarding device are tri-band routers.

24. The first forwarding device of claim 23 wherein the first communication band is any one of the communication bands supported by the tri-band router.

25. 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 including computer instructions that, when read from the memory by the processor, cause the second forwarding device to:

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

26. The second forwarding device of claim 25, wherein at least two communication links are established between the second forwarding device and a third forwarding device, and the communication links between the second forwarding device and the third forwarding device support different communication frequency bands; when the processor reads the computer instructions from the memory, it further causes the second forwarding device to:

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

27. The second forwarding device of claim 25 or 26, wherein the first signal is a signal of the first communication frequency band transmitted by a first terminal device; when the processor reads the computer instructions from the memory, it further causes the second forwarding device to:

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

28. The second forwarding device of claim 27 wherein the computer instructions, when read from the memory by the processor, further cause the second forwarding device to:

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

29. The second forwarding device of any one of claims 25-28 wherein the first forwarding device, the second forwarding device, and the third forwarding device are tri-band routers.

30. The second forwarding device of claim 29 wherein the first communication band is any one of the communication bands supported by the tri-band router.