CN112566163A - BSS Color value distribution method, device, medium and system - Google Patents
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Abstract
The invention discloses a method for distributing BSS Color values, which comprises the following steps: after a current wireless access point accesses a basic service set, judging whether a management device of the basic service set exists in a network coverage range of the basic service set; when the judgment result shows that the management equipment of the basic service set does not exist, the current wireless access point is set as the management equipment; and the management equipment allocates the BSS Color values of other wireless access points accessed to the basic service set so as to ensure that the BSS Color values of the other wireless access points accessed to the basic service set are different. The embodiment of the invention also discloses a device, a medium and a system for distributing the BSS Color value, which can effectively solve the BSS Color repetition phenomenon in the prior art and reduce BSS Color conflict, thereby avoiding the time delay of wireless network initialization.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a medium, and a system for allocating BSS Color values.
Background
BSS Color is a mechanism originally introduced in 802.11ah for assigning different colors to each BSS. Referring to fig. 1, an 802.11ax HE packet adds fields of BSS Color to the protocol header HE-SIG-a to distinguish different wireless networks. Because the 802.11ax protocol does not specify a method for generating the BSS Color field value, the BSS Color value is repeated when different wireless networks are initialized, and the BSS Color value conflicts at the moment, so that the wireless network initialization time is delayed, and the user experience is poor.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, a medium, and a system for allocating BSS Color values, which can effectively solve the problem of duplicate BSS Color values in the prior art, and reduce BSS Color conflicts, thereby avoiding a wireless network initialization time delay.
An embodiment of the present invention provides a method for allocating BSS Color values, including:
after a current wireless access point accesses a basic service set, judging whether a management device of the basic service set exists in a network coverage range of the basic service set;
when the judgment result shows that the management equipment of the basic service set does not exist, the current wireless access point is set as the management equipment;
and the management equipment allocates the BSS Color values of other wireless access points accessed to the basic service set so as to ensure that the BSS Color values of the other wireless access points accessed to the basic service set are different.
As an improvement of the above solution, after the current wireless access point accesses a basic service set, and after determining whether there is a management device of the basic service set in a network coverage area of the basic service set, the method further includes:
and when the judgment result is that the management equipment of the basic service set exists, the management equipment broadcasts the occupied BSS Color value so that the current wireless access point can select the available BSS Color value.
As an improvement of the above solution, after the determining that the management device has the basic service set, the management device broadcasts an occupied BSS Color value so that the current wireless access point selects an available BSS Color value, the method further includes:
and after the current wireless access point receives the broadcast of the management devices, selecting the management device with the maximum signal intensity from the management devices as the management device of the current wireless access point.
As an improvement of the above solution, after the determining that the management device has the basic service set, the management device broadcasts an occupied BSS Color value so that the current wireless access point selects an available BSS Color value, the method further includes:
and the current wireless access point broadcasts the available BSS Color value, and if no other wireless access point reports and conflicts with the available BSS Color value in a preset time period, the current wireless access point uses the available BSS Color value.
As an improvement of the above solution, after the management device allocates BSS Color values of other wireless access points accessing the basic service set so that the BSS Color values of the other wireless access points accessing the basic service set are different, the method further includes:
and after the management equipment exits the basic service set, setting the wireless access point with the minimum BSS Color value as the current management equipment.
As an improvement of the above scheme, after the current wireless access point accesses the basic service set, determining whether a management device of the basic service set exists in a network coverage area of the basic service set, specifically including:
and after the current wireless access point is accessed into the basic service set, judging whether a wireless access point with a BSS Color value being a preset first BSS Color value exists in the network coverage range of the basic service set.
Another embodiment of the present invention correspondingly provides an apparatus for allocating BSS Color values, including:
the first judgment module is used for judging whether management equipment of a basic service set exists in the network coverage range of the basic service set or not after a current wireless access point accesses the basic service set;
a first response module, configured to set the current wireless access point as the management device if the determination result indicates that there is no management device of the basic service set;
and the distribution module is used for distributing the BSS Color values of the other wireless access points accessed to the basic service set by the management equipment so as to ensure that the BSS Color values of the other wireless access points accessed to the basic service set are different.
As an improvement of the above, the apparatus further comprises:
and the second response module is used for broadcasting the occupied BSS Color value by the management equipment when the judgment result is that the management equipment of the basic service set exists, so that the current wireless access point can select the available BSS Color value.
Another embodiment of the present invention provides a storage medium, where the computer-readable storage medium includes a stored computer program, where when the computer program runs, a device in which the computer-readable storage medium is located is controlled to execute the method for allocating BSS Color values according to the above-described embodiment of the present invention.
Another embodiment of the present invention provides a system for allocating BSS Color values, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the method for allocating BSS Color values according to the above embodiment of the present invention when executing the computer program;
compared with the prior art, the method, the device, the medium and the system for allocating the BSS Color values disclosed in the embodiments of the present invention judge whether the management device of the basic service set exists in the network coverage of the basic service set after the current wireless access point accesses the basic service set, and if not, the current wireless access point is set as the management device. Due to the fact that the management equipment is introduced into the basic service set, the management equipment can distribute the BSS Color values of other wireless access points, the phenomenon that the BSS Color values are repeated or conflict is avoided, the initialization time of a wireless network cannot be delayed, and user experience is improved.
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FIG. 1 is a prior art 802.11ax HE packet provided by an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for allocating BSS Color values according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for allocating BSS Color values according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for allocating BSS Color values according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a system for allocating BSS Color values according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a schematic flow chart of a method for allocating BSS Color values based on a communication device according to an embodiment of the present invention.
An embodiment of the present invention provides a method for allocating BSS Color values, including:
s10, after the current wireless access point accesses the basic service set, it is judged whether there is a management device of the basic service set in the network coverage of the basic service set.
In this embodiment, a wireless router is used as a wireless access point, i.e., an AP. A Basic Service Set (BSS), is a Basic component (building block) of an 802.11 network and is used to describe a group of mobile devices in an 802.11WLAN that communicate with each other. It is understood that the basic service set is connected to 802.11WLAN, and there may be multiple access points in the basic service set to communicate.
Specifically, after the wireless router is powered on and started, the wireless router accesses a basic service set, and the wireless router monitors network information to determine whether a management device (Master bss) of the basic service set exists in a network coverage range of the basic service set. The Master BSS is a BSS color manager and maintains and manages the distribution of BSS color ids in the current BSS effective coverage range.
S20, if the determination result indicates that there is no management device of the basic service set, the current wireless access point is set as the management device.
Specifically, when the basic service set has no management device, the wireless router is set as the management device, and the wireless router is marked, so that the newly accessed device determines that the management device is already set in the basic service set.
S30, the management device allocates BSS Color values of other wireless access points accessing the basic service set, so that the BSS Color values of the other wireless access points accessing the basic service set are different.
Specifically, when the basic service set has a wireless access point to access, the management device allocates an available BSS Color value to the basic service set, that is, allocates an unused BSS Color value to a newly-added wireless access point, so that the BSS Color values of other wireless access points accessing the basic service set are different, thereby avoiding the occurrence of the phenomenon of BSS Color value repetition or collision.
In summary, after the current wireless access point accesses the basic service set, it is determined whether a management device of the basic service set exists in a network coverage area of the basic service set, and if not, the current wireless access point is set as the management device. Due to the fact that the management equipment is introduced into the basic service set, the management equipment can distribute the BSS Color values of other wireless access points, the phenomenon that the BSS Color values are repeated or conflict is avoided, the initialization time of a wireless network cannot be delayed, and user experience is improved.
As an improvement of the above solution, after the current wireless access point accesses a basic service set, and after determining whether there is a management device of the basic service set in a network coverage area of the basic service set, the method further includes:
s20' (see fig. 3), if the determination result is that there is a management device of the basic service set, the management device broadcasts an occupied BSS Color value, so that the current wireless access point selects an available BSS Color value.
In this embodiment, the wireless router is powered on and started, and when it is determined that the basic service set has the management device through the monitoring network, the wireless router may send a BSS Color value request to the management device, and the management device broadcasts the occupied BSS Color value through the bitmap, so that the wireless router selects an available BSS Color value (i.e., an unoccupied BSS Color value). Wherein, the BSS Color value is BSS Color ID.
As an improvement of the above solution, after the determining that the management device has the basic service set, the management device broadcasts an occupied BSS Color value so that the current wireless access point selects an available BSS Color value, the method further includes:
s30' (see fig. 3) after the current wireless access point receives the broadcast of the plurality of management devices, selecting a management device with the highest signal strength from the plurality of management devices as the management device of the current wireless access point.
Specifically, when the wireless router determines that the basic service set already has a management device and receives the broadcast of the plurality of management devices (that is, the wireless router can receive the BSS Color values occupied by the plurality of management devices), it indicates that the plurality of management devices cannot receive the messages of each other at this time, and the newly accessed wireless router is located between the plurality of management devices and can receive the occupied BSS Color values broadcast by the plurality of management devices. It should be noted that, the greater the signal strength received by the wireless router, the greater the influence, so the management device with the largest signal strength is selected as the management device of the wireless router, and receives the BSS Color value sent by the management device.
As an improvement of the above solution, after the determining that the management device has the basic service set, the management device broadcasts an occupied BSS Color value so that the current wireless access point selects an available BSS Color value, the method further includes:
s40' (see fig. 3), the current wireless access point broadcasts the available BSS Color value, and if no other wireless access point reports a conflict with the available BSS Color value within a preset time period, the current wireless access point uses the available BSS Color value. It should be noted that step S30 'is not sequentially related to step S40'.
In this embodiment, after the wireless router selects an available BSS Color value, for example, the BSS Color value is 3, and the other wireless access points can know that the wireless router uses 3 by monitoring the network information, and if no wireless access point proposes objection within a preset time period (i.e., the BSS Color value is used), the wireless router uses the BSS Color value, thereby avoiding the occurrence of repetition or collision of the BSS Color value. Wherein the preset time period is set empirically, typically between 500ms-1 s.
As an improvement of the above solution, after the management device allocates BSS Color values of other wireless access points accessing the basic service set so that the BSS Color values of the other wireless access points accessing the basic service set are different, the method further includes:
s40, (see fig. 3) after the management device exits the basic service set, setting the wireless access point with the minimum BSS Color value as the current management device.
Specifically, when the wireless access point of the management device exits the network, the wireless access point with the minimum BSS Color value is selected as the current management device, so that the management device always exists in the basic service set, and the management device allocates the ID, thereby avoiding the problem of collision of the BSS Color values.
As an improvement of the foregoing solution, after the current wireless access point accesses the basic service set, it is determined whether a management device of the basic service set exists in a network coverage area of the basic service set, and step S10 specifically includes:
and S100, after the current wireless access point accesses a basic service set, judging whether a wireless access point with a BSS Color value being a preset first BSS Color value exists in the network coverage range of the basic service set.
In this embodiment, the current wireless access point determines whether there is a management device with bss color id of 1 through the monitoring network. If the network coverage exists, the management device exists in the network coverage.
The BSS color value can only be a value between 0 and 63, in order to save space, 64 bits are used to respectively represent the current use state of each id when the BSS color value is advertised in beacon, 1 represents that the value has been used by the BSS, and 0 represents that the value is not used. The broadcast frame bss sharing value of the management device can be directly checked, and the unused broadcast frame bss can be selected from bitmap.
Fig. 4 is a schematic structural diagram of an apparatus for allocating BSS Color values based on a communication device according to an embodiment of the present invention.
An embodiment of the present invention correspondingly provides an apparatus for allocating BSS Color values, including:
a first determining module 10, configured to determine whether a management device of a basic service set exists in a network coverage area of the basic service set after a current wireless access point accesses the basic service set;
a first response module 20, configured to set the current wireless access point as the management device if the determination result indicates that there is no management device of the basic service set;
an allocating module 30, configured to allocate, by the management device, BSS Color values of other wireless access points accessing the basic service set, so that the BSS Color values of the other wireless access points accessing the basic service set are different.
The embodiment of the invention provides a device for distributing a BSS Color value, which is characterized in that after a current wireless access point accesses a basic service set, whether management equipment of the basic service set exists in a network coverage range of the basic service set is judged, and if not, the current wireless access point is set as the management equipment. Due to the fact that the management equipment is introduced into the basic service set, the management equipment can distribute the BSS Color values of other wireless access points, the phenomenon that the BSS Color values are repeated or conflict is avoided, the initialization time of a wireless network cannot be delayed, and user experience is improved.
As an improvement of the above, the apparatus further comprises:
and the second response module is used for broadcasting the occupied BSS Color value by the management equipment when the judgment result is that the management equipment of the basic service set exists, so that the current wireless access point can select the available BSS Color value.
As an improvement of the above, the apparatus further comprises:
and the first conflict processing module is configured to select, after the current wireless access point receives the broadcast of the multiple management devices, a management device with the highest signal strength from the multiple management devices as the management device of the current wireless access point.
As an improvement of the above, the apparatus further comprises:
and the second conflict processing module is used for broadcasting the available BSS Color value by the current wireless access point, and if no other wireless access point reports and conflicts with the available BSS Color value within a preset time period, the current wireless access point uses the available BSS Color value.
As an improvement of the above, the apparatus further comprises:
and the management equipment selection module is used for setting the wireless access point with the minimum BSS Color value as the current management equipment after the management equipment exits the basic service set.
Fig. 5 is a schematic diagram of a system for allocating BSS Color values according to an embodiment of the present invention. The system for allocating BSS Color values of this embodiment includes: a processor 11, a memory 12, and a computer program stored in the memory and configured to be executed by the processor 11, wherein the processor 11 implements the method for allocating BSS Color values according to the above embodiment of the present invention when executing the computer program.
Illustratively, the computer program may be partitioned into one or more modules/units that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of instruction segments of a computer program capable of performing a specific function, and the instruction segments are used for describing the execution process of the computer program in the system for distributing the BSS Color value.
The BSS Color value distribution system can be a computing device such as a wireless router and a switch. The system for allocating the BSS Color value may include, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that the schematic diagram is merely an example of the BSS Color value distribution system, and does not constitute a limitation of the BSS Color value distribution system, and may include more or less components than those shown, or combine some components, or different components, for example, the BSS Color value distribution system may further include input and output devices, network access devices, buses, and the like.
The Processor 11 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. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor is a control center of the BSS Color value distribution system, and various interfaces and lines are used to connect various parts of the entire BSS Color value distribution system.
The memory 12 may be used to store the computer programs and/or modules, and the processor implements various functions of the BSS Color value allocation system by operating or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, the module/unit integrated with the BSS Color value distribution system may be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A method for allocating BSS Color values is characterized by comprising the following steps:
after a current wireless access point accesses a basic service set, judging whether a management device of the basic service set exists in a network coverage range of the basic service set;
when the judgment result shows that the management equipment of the basic service set does not exist, the current wireless access point is set as the management equipment;
and the management equipment allocates the BSS Color values of other wireless access points accessed to the basic service set so as to ensure that the BSS Color values of the other wireless access points accessed to the basic service set are different.
2. The method for allocating BSS Color values according to claim 1, wherein after the current wireless access point accesses the basic service set and determines whether there is a management device of the basic service set in the network coverage area of the basic service set, the method further comprises:
and when the judgment result is that the management equipment of the basic service set exists, the management equipment broadcasts the occupied BSS Color value so that the current wireless access point can select the available BSS Color value.
3. The method of claim 2, wherein after the determining result indicates that the management device of the basic service set exists, the management device broadcasts an occupied BSS Color value so that the current wireless access point selects an available BSS Color value, the method further comprising:
and after the current wireless access point receives the broadcast of the management devices, selecting the management device with the maximum signal intensity from the management devices as the management device of the current wireless access point.
4. The method of claim 2, wherein after the determining result indicates that the management device of the basic service set exists, the management device broadcasts an occupied BSS Color value so that the current wireless access point selects an available BSS Color value, the method further comprising:
and the current wireless access point broadcasts the available BSS Color value, and if no other wireless access point reports and conflicts with the available BSS Color value in a preset time period, the current wireless access point uses the available BSS Color value.
5. The method of claim 1, wherein after the managing device allocates the BSS Color values of the other wireless access points accessing the basic service set so that the BSS Color values of the other wireless access points accessing the basic service set are different, the method further comprises:
and after the management equipment exits the basic service set, setting the wireless access point with the minimum BSS Color value as the current management equipment.
6. The method for allocating BSS Color values according to claim 1, wherein after the current wireless access point accesses a basic service set, determining whether a management device of the basic service set exists in a network coverage area of the basic service set, specifically includes:
and after the current wireless access point is accessed into the basic service set, judging whether a wireless access point with a BSS Color value being a preset first BSS Color value exists in the network coverage range of the basic service set.
7. An apparatus for assigning a BSS Color value, comprising:
the first judgment module is used for judging whether management equipment of a basic service set exists in the network coverage range of the basic service set or not after a current wireless access point accesses the basic service set;
a first response module, configured to set the current wireless access point as the management device if the determination result indicates that there is no management device of the basic service set;
and the distribution module is used for distributing the BSS Color values of the other wireless access points accessed to the basic service set by the management equipment so as to ensure that the BSS Color values of the other wireless access points accessed to the basic service set are different.
8. The apparatus for assigning BSS Color value of claim 7, wherein the apparatus further comprises:
and the second response module is used for broadcasting the occupied BSS Color value by the management equipment when the judgment result is that the management equipment of the basic service set exists, so that the current wireless access point can select the available BSS Color value.
9. A computer-readable storage medium, comprising a stored computer program, wherein when the computer program runs, the computer-readable storage medium controls an apparatus to execute the method for allocating BSS Color value according to any one of claims 1 to 6.
10. A BSS Color value allocation system comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the BSS Color value allocation method according to any one of claims 1 to 6 when executing the computer program.
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