CN113692050A - Resource unit allocation method, device, equipment and medium - Google Patents
Resource unit allocation method, device, equipment and medium Download PDFInfo
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- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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Abstract
The invention discloses a resource unit allocation method, a resource unit allocation device and a resource unit allocation medium. The method comprises the following steps: determining the operation requirement category of a wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station; determining a competitive channel type corresponding to the operation requirement type of the wireless station to be accessed as a target competitive channel type according to the corresponding relation between the preset operation requirement type and the competitive channel type; controlling the wireless station to be accessed to compete for resource units on the competitive channel of the target competitive channel type, and allocating the resource units which are competed by the wireless station to be accessed to the wireless station to be accessed; wherein the contention channel includes at least one resource unit. By adopting the embodiment of the invention, the channel resource allocation can be effectively optimized, and the overall throughput of the communication system is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a medium for allocating resource units.
Background
The Wi-Fi channel access mechanism in the legacy 802.11 protocol specification is based on a "random contention mode": client wireless Stations (STAs) randomly contend for channel usage and once the contention is successful, monopolize the entire channel spectrum resources for a period of time. After the 802.11ax protocol introduces an Orthogonal Frequency Division Multiple Access (OFDMA) technology, a channel is subdivided into smaller Resource Units (RUs) for Resource allocation, so that channel subcarriers are refined, the utilization rate of Frequency spectrum resources is improved to a certain extent, but the random competition mode is still based on subcarrier Resource units.
However, the inventors found that the prior art has at least the following problems: the following problems are relatively easy to occur by adopting a random competition mode: for a wireless station requiring only a very low transmission rate, a very small channel bandwidth can meet the normal working requirement, but in a random contention mechanism, a channel with a large bandwidth is likely to be contended, which causes waste. Particularly, with the rapid increase of internet of things (IOT) devices, more and more similar clients with low rate and low bandwidth appear, which will generate channel access competition influence on the clients with high rate requirement, resulting in increased collision waiting time, unreasonable channel resource allocation, and significantly reduced overall throughput of the communication system.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method, an apparatus, a device and a medium for allocating resource units, which can effectively optimize channel resource allocation, thereby improving the overall throughput of a communication system.
To achieve the above object, an embodiment of the present invention provides a method for allocating resource units, including:
determining the operation requirement category of a wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station;
determining a competitive channel type corresponding to the operation requirement type of the wireless station to be accessed as a target competitive channel type according to the corresponding relation between the preset operation requirement type and the competitive channel type;
controlling the wireless station to be accessed to compete for resource units on the competitive channel of the target competitive channel type, and allocating the resource units which are competed by the wireless station to be accessed to the wireless station to be accessed; wherein the contention channel includes at least one resource unit.
As an improvement of the above scheme, the determining the operation requirement category of the to-be-accessed wireless station specifically includes:
pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between the operation requirement categories and the transmission rate;
calculating the transmission rate required by the wireless station to be accessed during working;
and determining the operation requirement type of the wireless station to be accessed according to the transmission rate required by the wireless station to be accessed during working and the corresponding relation between the operation requirement type and the transmission rate.
As an improvement of the above scheme, the determining the operation requirement category of the to-be-accessed wireless station specifically includes:
pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between each operation requirement category and the transmission rate;
acquiring a rate selection instruction of a user to the wireless station to be accessed; the rate selection instruction is used for customizing the transmission rate required by the wireless station to be accessed during working;
and determining and acquiring the operation requirement category of the wireless station to be accessed according to the transmission rate corresponding to the rate selection instruction and the corresponding relation between the operation requirement category and the transmission rate.
As an improvement of the above scheme, the determining the operation requirement category of the to-be-accessed wireless station specifically includes:
pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between the operation requirement categories and network delay time;
calculating the network delay time of the wireless station to be accessed during working;
and determining the operation requirement type of the wireless station to be accessed according to the network delay time when the wireless station to be accessed works and the corresponding relation between the operation requirement type and the network delay time.
As an improvement of the above scheme, the number of the wireless stations to be accessed is more than one; then, the number of resource units in the contention channel of each of the contention channel classes is adjusted in real time by:
calculating the number of the wireless stations to be accessed included in each operation requirement category according to the operation requirement categories of all the wireless stations to be accessed;
and adjusting the number of resource units in a contention channel of a contention channel category corresponding to the operation requirement category according to the number of the wireless stations to be accessed, which is included in the operation requirement category.
As an improvement of the above scheme, the number of the wireless stations to be accessed is more than one; then, the number of resource units in the contention channel of each of the contention channel classes is adjusted in real time by:
acquiring the number of all wireless stations to be accessed;
and adjusting the number of the resource units in the competitive channel of each competitive channel type according to the number of all the wireless stations to be accessed.
As an improvement of the above scheme, the controlling the to-be-accessed wireless station to compete for the resource unit on the contention channel corresponding to the target contention channel category specifically includes:
and controlling the wireless station to be accessed to randomly compete for the resource units on the competitive channel corresponding to the target competitive channel type according to a preset random competitive mechanism.
The embodiment of the present invention further provides an apparatus for allocating resource units, including:
the operation requirement type determining module is used for determining the operation requirement type of the wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station;
a contention channel type determining module, configured to determine, according to a correspondence between a preset operation requirement type and a contention channel type, a contention channel type corresponding to the operation requirement type of the wireless station to be accessed as a target contention channel type;
a resource unit allocation module, configured to control the to-be-accessed wireless station to compete for resource units on a contention channel of the target contention channel type, and allocate resource units that the to-be-accessed wireless station competes for to the to-be-accessed wireless station; wherein the contention channel includes at least one resource unit.
An embodiment of the present invention further provides an apparatus for allocating resource units, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor, when executing the computer program, implements the method for allocating resource units according to any one of the above items.
An embodiment of the present invention further provides a computer-readable 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 resource unit allocation method according to any one of the above items.
Compared with the prior art, the resource unit allocation method, device, equipment and medium disclosed in the embodiments of the present invention determine the category of the contention channel corresponding to the category of the operation requirement of the wireless station to be accessed, as the category of the target contention channel, according to the preset correspondence between the category of the operation requirement and the category of the contention channel, so that the wireless station to be accessed competes for the resource unit on the contention channel of the category of the target contention channel, and further allocates the resource unit that the wireless station to be accessed competes for to the wireless station to be accessed. By adopting the technical means of the embodiment of the invention, different operation requirement categories are divided for distinguishing and treating according to the transmission rate or network delay time required by different wireless stations during working, the wireless stations with different operation requirement categories are accessed into different competition channels for resource unit competition, the operation requirement category isolation of the wireless stations is formed, the resource units included in the different competition channels are independent from each other and do not influence each other, a client with a high-speed requirement or a low-delay requirement can be effectively avoided, and the client with the low-speed requirement or the high-delay requirement can compete for channel resources together, so that the overall transmission efficiency and throughput of a communication system are effectively improved, and the network delay of the system is reduced. In addition, the embodiment of the invention can not destroy the original resource competition mechanism of the current Wi-Fi channel and has small change on the original working mode of the communication system.
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Fig. 1 is a flowchart illustrating a method for allocating resource units according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating the classification of contention channel classes according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a correspondence between an operation requirement category and a contention channel category according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for allocating resource units according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for allocating resource units 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. 1 is a flowchart illustrating a method for allocating resource units according to an embodiment of the present invention. The method for allocating resource units provided in the embodiments of the present invention may be executed by a wireless Access Point (AP), and specifically includes steps S1 to S3:
s1, determining the operation requirement category of the wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station;
s2, determining a competitive channel type corresponding to the operation requirement type of the wireless station to be accessed as a target competitive channel type according to the corresponding relation between the preset operation requirement type and the competitive channel type;
s3, controlling the wireless station to be accessed to compete for resource units on the competitive channel of the target competitive channel type, and allocating the resource units which are competed by the wireless station to be accessed to the wireless station to be accessed; wherein the contention channel includes at least one resource unit.
The wireless access point divides a plurality of operation requirement categories in advance, and each operation requirement category corresponds to different transmission rate size ranges or network delay time. For example, taking the case that each operation requirement category corresponds to different transmission Rate sizes, two operation requirement categories are pre-divided into a Low-Rate operation requirement category Low _ Rate _ STA and a High-Rate operation requirement category High _ Rate _ STA, respectively, where the transmission Rate size range required by the wireless station belonging to the High-Rate operation requirement category is larger than the transmission Rate size required by the wireless station belonging to the Low-Rate operation requirement category.
And the wireless access point classifies and marks the channels according to the sub-channels in advance to divide a plurality of competitive channel categories, wherein competitive channels corresponding to different competitive channel categories comprise different numbers of resource units RU. The competition channel categories and the operation requirement categories have the same number and have one-to-one correlation correspondence, and the correspondence between the operation requirement categories and the competition channel categories is formed. For example, the Low Rate operation requirement category corresponds to the Low Rate contention channel category, in which the included resource units are labeled Low _ Rate _ RU; the High-Rate operation demand category corresponds to the High-Rate contention channel category, in which the included resource units are labeled High _ Rate _ RU.
When a wireless station is ready to access the wireless access point AP, the wireless access point firstly determines the operation requirement type according to the transmission rate required by the wireless station to be accessed. And determining a competitive channel category corresponding to the operation requirement category of the wireless station to be accessed as a target competitive channel category of the wireless station to be accessed according to the corresponding relation between the operation requirement category and the competitive channel category. And then, the wireless station to be accessed only competes for the resource unit on the competitive channel corresponding to the target competitive channel type. And the wireless access point allocates the resource units contended by the wireless station to be accessed to the wireless station to be accessed so as to enable the wireless station to be accessed to access the channel for communication. For example, when the wireless station to be accessed is determined to be in the low-rate operation demand category, the wireless station is controlled to compete for the resource units only on the contention channel corresponding to the low-rate contention channel category, and the resource units on the high-rate contention channel are not occupied.
It should be noted that the number of the wireless stations to be accessed may be more than one. The wireless access point AP respectively determines the operation requirement category of each wireless station to be accessed and the corresponding competitive channel category thereof so as to respectively control each wireless station to be accessed to compete for resource units on the competitive channel of the target competitive channel category, and different competitive channels are not mutually influenced.
Preferably, in step S3, the controlling the to-be-accessed wireless station to contend for the resource unit on the contention channel corresponding to the target contention channel category specifically includes:
and controlling the wireless station to be accessed to randomly compete for the resource units on the competitive channel corresponding to the target competitive channel type according to a preset random competitive mechanism.
It should be noted that the preset random contention mechanism may adopt a random contention mechanism in the prior art, and is not specifically limited herein.
Taking Ch36@20MHz channel as an example, see fig. 2-3, where fig. 2 is a schematic diagram of the classification of contention channels in the embodiment of the present invention; fig. 3 is a schematic diagram illustrating a correspondence relationship between an operation requirement class and a contention channel class according to an embodiment of the present invention.
The method comprises the steps of dividing two types of operation requirement categories into a Low-Rate operation requirement category Low _ Rate _ STA and a High-Rate operation requirement category High _ Rate _ STA in advance, marking one or more RUs (for example, two RUs) in each 20MHz channel as Low _ Rate _ RUs to form a Low-Rate competition channel category, and marking the other RUs as High _ Rate _ RUs to form a High-Rate competition channel category.
When each to-be-accessed wireless station STA is ready to access the wireless access point AP, the AP determines whether the operation requirement category of each to-be-accessed wireless station is Low _ Rate _ STA or High _ Rate _ STA, and marks the operation requirement category, for example, Low _ Rate _ STA1 and Low _ Rate _ STA2 only compete on a contention channel formed by Low _ Rate _ RU, and High _ Rate _ STA1 and High _ Rate _ STA2 only compete on a contention channel formed by High _ Rate _ RU.
Since the theoretical Rate supported by a 26-subcarrier RU is 0.4-12.5 Mbps @ Nss ═ 1, this is sufficient for Low _ Rate _ STA devices, for example, the theoretical Rate requirement of a general internet of things (IOT) device is much smaller than this range; therefore, for the Low _ Rate _ STA device, the Low _ Rate _ RU resource units are controlled to randomly compete only on the contention channel formed by the one or more resource units marked as Low _ Rate _ RU, so that the bandwidth of the spectrum resources occupied by the Low _ Rate _ STA device is small, the influence on the Rate requirements of the wireless station STAs of the High-Rate operation requirement category can be almost ignored, and the remaining spectrum resources of the High _ Rate _ RU can be randomly used by the High _ Rate _ STA in a contention manner, thereby optimizing the allocation of the spectrum resources of the channel.
It can be understood that the operation requirement category is divided into a low-rate operation requirement category and a high-rate operation requirement category, the low-rate operation requirement category corresponds to a low-rate contention channel category, and an application scenario in which the high-rate operation requirement category corresponds to a high-rate contention channel category is merely taken as an example.
The operation requirement category can be divided into a low-delay operation requirement category and a high-delay operation requirement category according to the network delay requirement of the wireless station, wherein the low-delay operation requirement category corresponds to a low-delay competition channel category, and the high-delay operation requirement category corresponds to a high-delay competition channel category.
The embodiment of the invention provides a resource unit allocation method, which is characterized in that an operation requirement category of a wireless station to be accessed is determined, a competition channel category corresponding to the operation requirement category of the wireless station to be accessed is determined according to a preset corresponding relation between the operation requirement category and the competition channel category, and the competition channel category is used as a target competition channel category, so that the wireless station to be accessed competes for a resource unit on a competition channel of the target competition channel category, and the resource unit competed by the wireless station to be accessed is allocated to the wireless station to be accessed. By adopting the technical means of the embodiment of the invention, different operation requirement categories are divided for distinguishing and treating according to the transmission rate or network delay time required by different wireless stations during working, the wireless stations with different operation requirement categories are accessed into different competition channels for resource unit competition, the operation requirement category isolation of the wireless stations is formed, the resource units included in the different competition channels are independent from each other and do not influence each other, a client with a high-speed requirement or a low-delay requirement can be effectively avoided, and the client with the low-speed requirement or the high-delay requirement can compete for channel resources together, so that the overall transmission efficiency and throughput of a communication system are effectively improved, and the network delay of the system is reduced. In addition, the embodiment of the invention can not destroy the original resource competition mechanism of the current Wi-Fi channel and has small change on the original working mode of the communication system.
As a preferred implementation, on the basis of the above embodiment, the step S1 is executed by the following steps S111 to S113:
s111, pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between the operation requirement categories and the transmission rate;
s112, calculating the transmission rate required by the wireless station to be accessed during working;
s113, determining the operation requirement type of the wireless station to be accessed according to the transmission rate required by the wireless station to be accessed during working and the corresponding relation between the operation requirement type and the transmission rate.
Specifically, a plurality of operation requirement categories, for example, two operation requirement categories, are pre-divided into a Low-Rate operation requirement category Low _ Rate _ STA and a High-Rate operation requirement category High _ Rate _ STA, and a transmission Rate size range corresponding to each operation requirement category is specified, so as to form a corresponding relationship between the operation requirement categories and the transmission Rate sizes.
Further, based on a deep learning method, the transmission rate required by the wireless station to be accessed during working is counted for a long time, and then the operation requirement category of the wireless station to be accessed is determined according to the corresponding relation between the operation requirement category and the transmission rate.
It can be understood that the wireless access point AP may determine the corresponding operation requirement category by counting transmission rate required by all wireless stations during operation for a long time, and mark and store the operation requirement category for each wireless station. In the subsequent use process, the operation requirement category can be directly determined according to the IP information of the wireless station to be accessed.
The embodiment of the invention determines the operation requirement category of the wireless station by adopting a mode of counting the transmission rate required by the wireless station during operation. In addition, by adopting the technical means of the embodiment of the invention, the accuracy of determining the transmission rate of the wireless station is improved by counting the rate of the wireless station in working within a period of time, thereby improving the accuracy of classifying the operation requirement classes of the wireless station.
As another preferred embodiment, the step S1 can be further performed by the following steps S121 to S123:
s121, pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between each operation requirement category and the transmission rate;
s122, acquiring a rate selection instruction of a user to the wireless station to be accessed; the rate selection instruction is used for customizing the transmission rate required by the wireless station to be accessed during working;
and S123, determining and acquiring the operation requirement type of the wireless site to be accessed according to the transmission rate corresponding to the rate selection instruction and the corresponding relation between the operation requirement type and the transmission rate.
Specifically, a plurality of operation requirement categories, for example, two operation requirement categories, are pre-divided into a Low-Rate operation requirement category Low _ Rate _ STA and a High-Rate operation requirement category High _ Rate _ STA, and a transmission Rate size range corresponding to each operation requirement category is specified, so as to form a corresponding relationship between the operation requirement categories and the transmission Rate sizes.
Further, when a user accesses a client, that is, the to-be-accessed wireless station, to the AP, the user may define the transmission rate of the to-be-accessed wireless station by inputting a rate selection instruction, and then the AP determines the operation requirement category of the to-be-accessed wireless station according to the correspondence between the operation requirement category and the transmission rate.
It can be understood that, when the user accesses the client to the wireless station, the user may also directly determine the operation requirement category of the wireless station to be accessed by inputting a category selection instruction, thereby simplifying the operation.
The method and the device for determining the operation requirement category of the wireless station determine the transmission rate required by the wireless station during operation. Moreover, by adopting the technical means of the embodiment of the invention, the flexibility of determining the transmission rate of the wireless station is improved by customizing the rate of the wireless station in work by a user, thereby better meeting the communication requirement of the user.
As another preferred embodiment, the step S1 can be further performed by the following steps S131 to S133:
s131, pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between the operation requirement categories and network delay time;
s132, calculating the network delay time of the wireless station to be accessed during working;
s133, determining the operation requirement type of the wireless station to be accessed according to the network delay time when the wireless station to be accessed works and the corresponding relation between the operation requirement type and the network delay time.
Specifically, a plurality of operation requirement categories, for example, two operation requirement categories, are pre-divided into a low-delay operation requirement category and a high-delay operation requirement category, and a network delay time range corresponding to each operation requirement category is specified to form a corresponding relationship between the operation requirement category and the network delay time.
Further, based on a deep learning method, the network delay time of the wireless station to be accessed in working is counted for a long time, and then the operation requirement type of the wireless station to be accessed is determined according to the corresponding relation between the operation requirement type and the network delay time.
It can be understood that the wireless access point AP may determine the corresponding operation requirement category by counting network delay times of all wireless stations during operation for a long time, and mark and store the operation requirement category for each wireless station. In the subsequent use process, the operation requirement category can be directly determined according to the IP information of the wireless station to be accessed.
The method and the device for determining the operation requirement category of the wireless station adopt a mode of counting the network delay time of the wireless station during operation to determine the operation requirement category of the wireless station. Moreover, by adopting the technical means of the embodiment of the invention, the accuracy of determining the network delay time of the wireless station is improved by counting the network delay time of the wireless station in working within a period of time, thereby improving the accuracy of classifying the operation requirement classes of the wireless station.
It should be noted that the above three ways of determining the operation requirement category of the to-be-accessed wireless station are only preferred embodiments, and do not constitute specific limitations to the present invention. In practical application, the operation requirement categories of the wireless stations to be accessed can be classified according to other operation requirements of the wireless stations, and the beneficial effects obtained by the invention are not influenced.
As a preferred implementation manner, if the number of the wireless stations to be accessed is more than one, then the embodiment of the present invention adjusts the number of resource units in the contention channel of each contention channel category in real time through the following steps S211 to S212:
s211, calculating the number of the wireless stations to be accessed included in each operation requirement category according to the operation requirement categories of all the wireless stations to be accessed;
s212, according to the number of the wireless stations to be accessed, which are included in the operation requirement type, the number of the resource units in the competitive channel of the competitive channel type corresponding to the operation requirement type is adjusted.
In the embodiment of the invention, the number of the resource units in the contention channels of different contention channel types can be dynamically adjusted in real time. The method comprises the steps that a wireless Access Point (AP) determines operation requirement categories of all wireless stations to be accessed in a system, counts the number of the wireless stations to be accessed included in each operation requirement category, and divides the number of resource units of competing channel categories corresponding to different operation requirement categories according to the ratio of the number of the wireless stations to be accessed included in each operation requirement category.
For example, two types of operation requirement categories are divided in advance, namely a Low-Rate operation requirement category Low _ Rate _ STA and a High-Rate operation requirement category High _ Rate _ STA. Assuming that the ratio of the number of wireless stations included in the low-rate operation requirement category to the number of wireless stations included in the high-rate operation requirement category is 1: and 5, marking one sixth of the resource units in the channel as Low _ Rate _ RU to form a Low-Rate contention channel category, and marking the rest resource units in the channel as High _ Rate _ RU to form a High-Rate contention channel category.
It can be understood that the above-mentioned scenarios and values are only used as examples, and in practical applications, an appropriate number of resource units may be divided for competing channel categories corresponding to different operation requirement categories according to the actual number of wireless stations included in the operation requirement categories.
As another preferred implementation manner, if the number of the wireless stations to be accessed is more than one, the embodiment of the present invention determines the number of resource units in the contention channel of each contention channel category through the following steps S221 to S222:
s221, acquiring the number of all wireless stations to be accessed;
s222, adjusting the number of the resource units in the contention channel of each contention channel type according to the number of all the wireless stations to be accessed.
In the embodiment of the invention, the wireless access point AP counts the number of all current wireless stations to be accessed in the system, and adjusts the number of resource units in the competitive channel of each competitive channel type according to the number of all the wireless stations to be accessed.
For example, two types of operation requirement categories, namely, a Low-Rate operation requirement category Low _ Rate _ STA and a High-Rate operation requirement category High _ Rate _ STA, are pre-divided, and then two types of contention channel categories, namely, a Low-Rate contention channel category and a High-Rate contention channel category, are associated with the operation requirement categories.
If the wireless access point obtains that the number of all current wireless stations to be accessed is small through statistics, for example, the number of the current wireless stations to be accessed is smaller than a preset wireless station number threshold value, a first preset number is divided, for example, one to two resource units are used as Low _ Rate _ RUs to form a Low-Rate contention channel category, and other resource units are used as High _ Rate _ RUs to form a High-Rate contention channel category; if the number of all the current wireless stations to be accessed is larger than the preset threshold of the number of the wireless stations, for example, one to two more resource units are adjusted in real time from the resource units marked as the High _ Rate _ RU as the Low _ Rate _ RU.
It can be understood that the above-mentioned scenarios and values are only examples, and in practical applications, a proper number of resource units may be divided for competing channel categories corresponding to different operation requirement categories according to an actual number of all currently-accessed wireless stations.
By adopting the technical means of the embodiment of the invention, when more than one current wireless station to be accessed is available, the dynamic adjustment of the number of the resource units in different competition channel categories is realized according to the operation requirement categories or the total number of all the wireless stations to be accessed, the current communication requirement can be better met, the waiting time of any wireless station to be accessed is reduced, and the overall throughput of the system is improved.
Fig. 4 is a schematic structural diagram of an apparatus for allocating resource units according to an embodiment of the present invention. An embodiment of the present invention provides an apparatus 20 for allocating resource units, including: an operation requirement type determining module 21, a competition channel type determining module 22 and a resource unit distributing module 23; wherein the content of the first and second substances,
the operation requirement type determining module 21 is configured to determine an operation requirement type of a wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station;
the contention channel type determining module 22 is configured to determine, according to a preset correspondence between an operation requirement type and a contention channel type, a contention channel type corresponding to the operation requirement type of the wireless station to be accessed, as a target contention channel type;
the resource unit allocation module 23 is configured to control the to-be-accessed wireless station to compete for resource units on the contention channel of the target contention channel type, and allocate resource units that the to-be-accessed wireless station competes for to the to-be-accessed wireless station; wherein the contention channel includes at least one resource unit.
By adopting the technical means of the embodiment of the invention, different operation requirement categories are divided for distinguishing and treating according to the transmission rate or network delay time required by different wireless stations during working, the wireless stations with different operation requirement categories are accessed into different competition channels for resource unit competition, the operation requirement category isolation of the wireless stations is formed, the resource units included in the different competition channels are independent from each other and do not influence each other, a client with a high-speed requirement or a low-delay requirement can be effectively avoided, and the client with the low-speed requirement or the high-delay requirement can compete for channel resources together, so that the overall transmission efficiency and throughput of a communication system are effectively improved, and the network delay of the system is reduced. In addition, the embodiment of the invention can not destroy the original resource competition mechanism of the current Wi-Fi channel and has small change on the original working mode of the communication system.
As a preferred embodiment, the operation requirement category determining module 21 specifically includes: the device comprises a corresponding relation setting unit, a transmission rate calculating unit and an operation requirement type determining unit.
The corresponding relation setting unit is used for pre-dividing a plurality of operation requirement categories and setting the corresponding relation between the operation requirement categories and the transmission rate;
the transmission rate calculating unit is used for calculating the transmission rate required by the wireless station to be accessed during working;
the operation requirement type determining unit is configured to determine an operation requirement type of the wireless station to be accessed according to a transmission rate required by the wireless station to be accessed during operation and a corresponding relationship between the operation requirement type and the transmission rate.
The embodiment of the invention determines the operation requirement category of the wireless station by adopting a mode of counting the transmission rate required by the wireless station during operation. In addition, by adopting the technical means of the embodiment of the invention, the accuracy of determining the transmission rate of the wireless station is improved by counting the rate of the wireless station in working within a period of time, thereby improving the accuracy of classifying the operation requirement classes of the wireless station.
As another preferred embodiment, the operation requirement category determining module 21 specifically includes: the device comprises a corresponding relation setting unit, a transmission rate determining unit and an operation requirement type determining unit.
The corresponding relation setting unit is used for pre-dividing a plurality of operation requirement categories and setting the corresponding relation between each operation requirement category and the transmission rate;
the transmission rate determining unit is used for acquiring a rate selection instruction of a user to the wireless station to be accessed; the rate selection instruction is used for customizing the transmission rate required by the wireless station to be accessed during working;
and the operation requirement type determining unit is used for determining and acquiring the operation requirement type of the wireless station to be accessed according to the transmission rate corresponding to the rate selection instruction and the corresponding relation between the operation requirement type and the transmission rate.
The embodiment of the invention determines the operation requirement category of the wireless station by adopting a mode of counting the transmission rate required by the wireless station during operation. Moreover, by adopting the technical means of the embodiment of the invention, the flexibility of determining the transmission rate of the wireless station is improved by customizing the rate of the wireless station in work by a user, thereby better meeting the communication requirement of the user.
As another preferred embodiment, the operation requirement category determining module 21 specifically includes: the device comprises a corresponding relation setting unit, a network delay calculating unit and an operation requirement type determining unit.
The corresponding relation setting unit is used for pre-dividing a plurality of operation requirement categories and setting the corresponding relation between the operation requirement categories and the network delay time;
the network delay calculating unit is used for calculating the network delay time when the wireless station to be accessed works;
the operation requirement type determining unit is used for determining the operation requirement type of the wireless station to be accessed according to the network delay time when the wireless station to be accessed works and the corresponding relation between the operation requirement type and the network delay time.
The method and the device for determining the operation requirement category of the wireless station adopt a mode of counting the network delay time of the wireless station during operation to determine the operation requirement category of the wireless station. Moreover, by adopting the technical means of the embodiment of the invention, the accuracy of determining the network delay time of the wireless station is improved by counting the network delay time of the wireless station in working within a period of time, thereby improving the accuracy of classifying the operation requirement classes of the wireless station.
As a preferred embodiment, the number of the wireless stations to be accessed is more than one; then the process of the first step is carried out,
in one embodiment, the number of resource units in the contention channel of each of the contention channel classes is adjusted in real time by:
calculating the number of the wireless stations to be accessed included in each operation requirement category according to the operation requirement categories of all the wireless stations to be accessed;
and adjusting the number of resource units in a contention channel of a contention channel category corresponding to the operation requirement category according to the number of the wireless stations to be accessed, which is included in the operation requirement category.
In another embodiment, the number of resource units in the contention channel of each of the contention channel classes is adjusted in real time by:
acquiring the number of all wireless stations to be accessed;
and adjusting the number of the resource units in the competitive channel of each competitive channel type according to the number of all the wireless stations to be accessed.
By adopting the technical means of the embodiment of the invention, when more than one current wireless station to be accessed is available, the dynamic adjustment of the number of the resource units in different competition channel categories is realized according to the operation requirement categories or the total number of all the wireless stations to be accessed, the current communication requirement can be better met, the waiting time of any wireless station to be accessed is reduced, and the overall throughput of the system is improved.
It should be noted that, the apparatus for allocating a resource unit according to the embodiment of the present invention is configured to execute all the process steps of the method for allocating a resource unit according to the embodiment, and working principles and beneficial effects of the two are in one-to-one correspondence, so that details are not described again.
Fig. 5 is a schematic structural diagram of an apparatus for allocating resource units according to an embodiment of the present invention. The embodiment of the present invention provides an allocation apparatus 30 for a resource unit, which includes a processor 31, a memory 32, and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the allocation method for the resource unit according to the above embodiment when executing the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, and when the computer program runs, a device in which the computer-readable storage medium is located is controlled to execute the resource unit allocation method according to the foregoing embodiment.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a Random Access Memory (RAM), or the like.
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 resource units, comprising:
determining the operation requirement category of a wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station;
determining a competitive channel type corresponding to the operation requirement type of the wireless station to be accessed as a target competitive channel type according to the corresponding relation between the preset operation requirement type and the competitive channel type;
controlling the wireless station to be accessed to compete for resource units on the competitive channel of the target competitive channel type, and allocating the resource units which are competed by the wireless station to be accessed to the wireless station to be accessed; wherein the contention channel includes at least one resource unit.
2. The method for allocating resource units according to claim 1, wherein the determining the operation requirement category of the to-be-accessed wireless station specifically includes:
pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between the operation requirement categories and the transmission rate;
calculating the transmission rate required by the wireless station to be accessed during working;
and determining the operation requirement type of the wireless station to be accessed according to the transmission rate required by the wireless station to be accessed during working and the corresponding relation between the operation requirement type and the transmission rate.
3. The method for allocating resource units according to claim 1, wherein the determining the operation requirement category of the to-be-accessed wireless station specifically includes:
pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between each operation requirement category and the transmission rate;
acquiring a rate selection instruction of a user to the wireless station to be accessed; the rate selection instruction is used for customizing the transmission rate required by the wireless station to be accessed during working;
and determining and acquiring the operation requirement category of the wireless station to be accessed according to the transmission rate corresponding to the rate selection instruction and the corresponding relation between the operation requirement category and the transmission rate.
4. The method for allocating resource units according to claim 1, wherein the determining the operation requirement category of the to-be-accessed wireless station specifically includes:
pre-dividing a plurality of operation requirement categories, and setting a corresponding relation between the operation requirement categories and network delay time;
calculating the network delay time of the wireless station to be accessed during working;
and determining the operation requirement type of the wireless station to be accessed according to the network delay time when the wireless station to be accessed works and the corresponding relation between the operation requirement type and the network delay time.
5. The method for allocating resource units according to any of claims 1-4, wherein the number of wireless stations to be accessed is more than one; then, the number of resource units in the contention channel of each of the contention channel classes is adjusted in real time by:
calculating the number of the wireless stations to be accessed included in each operation requirement category according to the operation requirement categories of all the wireless stations to be accessed;
and adjusting the number of resource units in a contention channel of a contention channel category corresponding to the operation requirement category according to the number of the wireless stations to be accessed, which is included in the operation requirement category.
6. The method for allocating resource units according to any of claims 1-4, wherein the number of wireless stations to be accessed is more than one; then, the number of resource units in the contention channel of each of the contention channel classes is adjusted in real time by:
acquiring the number of all wireless stations to be accessed;
and adjusting the number of the resource units in the competitive channel of each competitive channel type according to the number of all the wireless stations to be accessed.
7. The method for allocating resource units according to claim 1, wherein the controlling the to-be-accessed wireless station to contend for the resource units on the contention channel corresponding to the target contention channel category specifically includes:
and controlling the wireless station to be accessed to randomly compete for the resource units on the competitive channel corresponding to the target competitive channel type according to a preset random competitive mechanism.
8. An apparatus for allocating resource units, comprising:
the operation requirement type determining module is used for determining the operation requirement type of the wireless station to be accessed; the operation requirement category is determined according to the transmission rate size or the network delay time required by the wireless station;
a contention channel type determining module, configured to determine, according to a correspondence between a preset operation requirement type and a contention channel type, a contention channel type corresponding to the operation requirement type of the wireless station to be accessed as a target contention channel type;
a resource unit allocation module, configured to control the to-be-accessed wireless station to compete for resource units on a contention channel of the target contention channel type, and allocate resource units that the to-be-accessed wireless station competes for to the to-be-accessed wireless station; wherein the contention channel includes at least one resource unit.
9. An apparatus for allocation of resource units, 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 method for allocation of resource units according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method for allocating resource units according to any one of claims 1 to 7.
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