CN103974443B - Distributed channel connection control method and equipment - Google Patents
Distributed channel connection control method and equipment Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of distributed channel connection control method and equipment, wherein methods described, including：The data priority of the data that user class and the terminal according to terminal are being transmitted, the data that the terminal is being transmitted is stored in corresponding transmission queue and is transmitted.Thus, the distribution of channel resource and user class are bound, more channel resources can be provided for high level user, lifted the experience of user.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a distributed channel access control method and device.
Background
In a Wireless Local Area Network (WLAN), a Distributed Coordination Function (DCF) channel access mechanism is initially adopted, namely: the method comprises the steps that before a terminal occupies a channel to send a message, the channel is monitored, when the idle time of the channel is larger than or equal to the idle waiting time, the backoff time is randomly selected in a contention window range to carry out backoff, the terminal which finishes backoff firstly competes to a channel of an Access Point (AP), and the message is sent. Under the mechanism, messages sent by all users compete for wireless resources equally. Because there is no mechanism for prioritizing data, Access Point (AP) and terminal messages are treated according to the same priority when sending messages to the outside. And, when the network is congested, all types of messages will be discarded with the same probability.
To improve the deficiency of the DCF Channel Access mechanism, an Enhanced Distributed Channel Access (EDCA) scheduling mechanism is created. The EDCA mechanism is an improved version of DCF, and the EDCA specifies four access types, each type corresponding to a class of priority transmission queues, and the name and priority order of each transmission queue are, by default: AC _ VO (voice) > AC _ VI (video) > AC _ BE (best effort) > AC _ BK (background), which indicates that the priority in the four access types is Voice (VO), Video (VI), Best Effort (BE), and background data (BK) in order from high to low. Of course, the priority order of the four priority queues is not absolute, and the priority order can be adjusted by parameter modification. Therefore, when the EDCA scheduling mechanism is adopted, data with different priorities can be scheduled according to corresponding scheduling priorities, but different users with the same priority still have the same treatment, so that the data transmission requirements of users with high priorities cannot be met.
Disclosure of Invention
The embodiment of the invention provides a distributed channel access control method and equipment, which can provide more channel resources for high-level users and improve the user experience.
A first aspect of the present invention provides a distributed channel access control method, which may include:
and storing the data transmitted by the terminal into a corresponding transmission queue for transmission according to the user level of the terminal and the data priority of the data transmitted by the terminal.
With reference to the first aspect, in a first possible implementation manner, before storing, according to a user level of a terminal and a data priority of data being transmitted by the terminal, the data being transmitted by the terminal in a corresponding transmission queue for transmission, the method further includes:
receiving a request for adjusting a user level of the terminal;
adjusting the user level of the terminal according to the request;
adjusting the distributed channel access parameters of the terminal according to the adjusted user level;
and informing the terminal of the adjustment result of the user level and the distributed channel access parameter so as to enable the terminal to obtain the distributed channel access parameter matched with the user level.
With reference to the first aspect, in a second possible implementation manner, before storing, according to a user level of a terminal and a data priority of data being transmitted by the terminal, the data being transmitted by the terminal in a corresponding transmission queue for transmission, the method further includes:
and creating a plurality of transmission queues, and establishing the corresponding relation between each transmission queue and the data priority and the user level.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner, the created transmission queues include a high-priority voice (VO _ H) queue, a low-priority voice (VO _ L) queue, a high-priority video (VI _ H) queue, a low-priority video (VI _ L) queue, a high-priority best effort (BE _ H) queue, a low-priority best effort (BE _ L) queue, a high-priority background data (BK _ H) queue, and a low-priority background data (BK _ L) queue, where the priority of sending data is from high to low.
With reference to any one of the first aspect to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, before storing data being transmitted by a terminal into a corresponding transmission queue for transmission according to a user level of the terminal and a data priority of the data being transmitted by the terminal, determining whether the transmission queue can still store data currently, and if so, storing the data being transmitted by the terminal into the transmission queue for transmission; if not, storing the data transmitted by the terminal into other transmission queues for transmission.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, when storing data being transmitted by the terminal in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored for transmission.
A second aspect of the present invention provides a distributed channel access control device, which may include:
the terminal comprises an acquisition module, a transmission module and a processing module, wherein the acquisition module is used for acquiring the user level of the terminal and the data priority of the data transmitted by the terminal;
and the distribution module is used for storing the data transmitted by the terminal into a corresponding transmission queue for transmission according to the user level and the data priority of the terminal acquired by the acquisition module.
With reference to the second aspect, in a first possible implementation manner, the apparatus further includes:
a receiving module, configured to receive an adjustment request for adjusting a user level of the terminal;
the adjusting module is used for adjusting the user level of the terminal according to the request received by the receiving module and adjusting the distributed channel access parameters of the terminal according to the adjusted user level;
and the sending module is used for informing the terminal of the adjustment result of the user level and the distributed channel access parameter by the adjustment module so as to enable the terminal to obtain the distributed channel access parameter matched with the user level.
With reference to the second aspect, in a second possible implementation manner, the apparatus further includes:
and the creating module is used for creating a plurality of transmission queues and establishing the corresponding relation between each transmission queue and the data priority and the user level.
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner, the transmission queues created by the creating module include a high-priority voice (VO _ H) queue, a low-priority voice (VO _ L) queue, a high-priority video (VI _ H) queue, a low-priority video (VI _ L) queue, a high-priority best effort (BE _ H) queue, a low-priority best effort (BE _ L) queue, a high-priority background data (BK _ H) queue, and a low-priority background data (BK _ L) queue, and the priorities of the transmission data of the transmission queues are changed from high to low.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the apparatus further includes:
a determining module, configured to determine whether data can still be stored in the transmission queue currently before the allocating module stores the data being transmitted by the terminal into the corresponding transmission queue for transmission according to the user level and the data priority of the terminal acquired by the acquiring module;
the distribution module is specifically configured to store the data being transmitted by the terminal into the transmission queue for transmission when the determination result determined by the determination module is yes; and when the judgment result of the judgment module is negative, storing the data transmitted by the terminal into other transmission queues for transmission.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, when the allocating module stores data being transmitted by the terminal in other transmission queues for transmission, the data being transmitted by the terminal is preferentially stored in a transmission queue in which data of the terminal is stored for transmission.
As can be seen from the above, in some possible embodiments of the present invention, the data being transmitted by the terminal is stored in the corresponding transmission queue for transmission according to the user level of the terminal and the data priority of the data being transmitted by the terminal. Therefore, the allocation of the channel resources is bound with the user level, more channel resources can be provided for the user with the high level, and the user experience is improved.
Drawings
Fig. 1 is a flowchart illustrating a first embodiment of a distributed channel access control method according to the present invention;
fig. 2 is a flowchart illustrating a second embodiment of a distributed channel access control method according to the present invention;
fig. 3 is a schematic structural diagram of a first embodiment of a distributed channel access control apparatus according to the present invention;
fig. 4 is a schematic structural diagram of a second embodiment of a distributed channel access control device according to the present invention;
fig. 5 is a schematic structural diagram of a third embodiment of a distributed channel access control device according to the present invention;
fig. 6 is a schematic structural diagram of a fourth embodiment of a distributed channel access control apparatus according to the present invention;
FIG. 7 is a diagram illustrating the composition of a priority queue according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a distributed channel access control method, which comprises the following steps: and storing the data transmitted by the terminal into a corresponding transmission queue for transmission according to the user level of the terminal and the data priority of the data transmitted by the terminal. Therefore, the allocation of the channel resources is bound with the user level, more channel resources can be provided for the user with the high level, and the user experience is improved.
Embodiments of the distributed channel access control method according to the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating a distributed channel access control method according to a first embodiment of the present invention. As shown in fig. 1, the method of the present invention may comprise:
step S110, according to the data priority of the data being transmitted by the terminal, searching for a transmission queue corresponding to the data priority.
Step S111, according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues;
step S112, storing the data being transmitted by the terminal into the searched transmission queue corresponding to the user level for transmission.
In a specific implementation, before step S110, the method of the present invention may further include:
creating a plurality of transmission queues, establishing a corresponding relation between the type of each transmission queue and the data priority, and establishing a corresponding relation between the transmission queue under each type and the user level; the number of each type of transmission queue is two or more, a plurality of transmission queues of the same type transmit data of the same type, and each transmission queue of the plurality of transmission queues of the same type corresponds to one or more user levels.
In particular, the method of the embodiment of the present invention may be applied to various wireless network environments (e.g., wireless local area network WLAN). And the data priority and the transmission queue are divided differently under different network environments, for example, referring to fig. 7, for the EDCA mechanism, the created transmission queue includes a high priority voice (VO _ H) queue, a low priority voice (VO _ L) queue, a high priority video (VI _ H) queue, a low priority video (VI _ L) queue, a high priority best effort (BE _ H) queue, a low priority best effort (BE _ L) queue, a high priority background data (BK _ H) queue, and a low priority background data (BK _ L) queue, which transmit data with a high priority to a low priority.
Wherein the type of the high priority voice (VO _ H) queue and the low priority voice (VO _ L) queue is Voice (VO);
the type of the high priority video (VI _ H) queue and the low priority video (VI _ L) queue is Video (VL);
the types of the high priority best effort (BE _ H) queue and the low priority best effort (BE _ L) queue are Best Effort (BE);
the type of the high priority background data (BK _ H) queue and the low priority background data (BK _ L) queue is background data.
Wherein the high priority voice (VO _ H) queue corresponds to voice data of one or more user levels, and the low priority voice (VO _ L) queue corresponds to voice data of one or more user levels; the high priority video (VI _ H) queue corresponds to video data of one or more user levels, and the low priority video (VI _ L) queue corresponds to video data of one or more user levels; a high priority best effort (BE H) queue corresponds to best effort data of one or more user levels, and a low priority best effort (BE L) queue corresponds to best effort data of one or more user levels; the high priority background data (BK _ H) queue corresponds to one or more user-level background data, and the low priority background data (BK _ L) queue corresponds to one or more user-level background data. Therefore, the EDCA mechanism can have a total of 8 queues to control the transmission of terminal data.
Therefore, in step S110 and step S111, the created result can be used to perform the corresponding search.
In some possible embodiments, each terminal is assigned a corresponding user level at the time of system initialization, so that the queue lookup can be performed in steps S110 and S111 according to the saved user levels of the pre-assigned terminals.
In some possible embodiments, the user may temporarily request to raise or lower the user level of the terminal for data needs, for example, when a network is congested and a user is willing to pay to obtain a higher rate, the user may raise the user level by clicking an acceleration button of the application, or, if the package is faster than the predetermined rate, the user may click a deceleration button of the application to lower the user level to save system traffic. Therefore, in step S110 and step S111, an appropriate queue can be found for the user whose user level is updated according to the user' S request.
In some possible embodiments, the network side may also temporarily request to change the user level, such as: network resources are limited, when there are many high-priority users, the rate of other users needs to be reduced, and at this time, the network side can actively reduce the user level of some terminals. Therefore, in step S110 and step S111, an appropriate queue can be found for the user whose user level is updated according to the request of the network side.
In some possible embodiments, the different transmit queues and the queues of the transmit queues are divided by different distributed channel access parameters, for example, for the EDCA mechanism, the transmit queues and the queues of the transmit queues are divided by AIFSN (arbitration inter frame arbitration number), ECWmin (explicit form of CWmin minimum contention window index), ecwmmax (explicit form of CWmax maximum contention window index), TXOPlimit (transmission opportunity limit), and ACK-policy (ACK policy).
AIFSN: the WMM can configure different idle waiting time lengths aiming at different ACs, and the larger the AIFSN value is, the longer the idle waiting time of the user is.
ECWmin and ECWmax: these two values determine the average back-off time value, the larger the value, the longer the average back-off time for the user.
TXOPLimit: after the user successfully competes for one time, the maximum time length of the channel can be occupied, the larger the value of the maximum time length is, the longer the time length of the channel which can be occupied by the user at one time is, if the value is 0, only one message can be sent after the channel is occupied every time.
In some possible embodiments, when the transmission queue corresponding to the user level is found in step S111, the method of the embodiment of the present invention may further include (not shown):
judging whether the transmission queue corresponding to the user level can still store data currently, if so, storing the data transmitted by the terminal into the searched transmission queue corresponding to the user level for transmission; if not, storing the data transmitted by the terminal into other transmission queues in the transmission queue corresponding to the data priority level in the search for sending.
For example, the data being transmitted may be stored in a higher priority queue or a lower priority queue of the transmission queue corresponding to the priority of the data for transmission. For another example, when the data being transmitted by the terminal is stored in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored in the searched transmission queue for transmission. In the specific judgment, whether the transmission queue can store data or not can be judged according to the capacity of the transmission queue and the scheduling strategy. It should be noted that, in order to ensure the data quality of more users as much as possible without wasting resources, a certain rule is used to try to put part or all of the data streams of users having high user level requests into a high priority queue.
As can be seen from the above, in some possible embodiments of the present invention, a transmission queue corresponding to a data priority of data being transmitted by a terminal is searched for; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues; and storing the data transmitted by the terminal into the searched transmission queue for transmission. Therefore, after the method flow of the embodiment of the invention, the data of the terminals of different user levels in the local area are transmitted through different transmission queues. Therefore, the terminal equipment with the high user level can preferentially enjoy the channel resources, and the experience of the user with the high user level is enhanced.
Fig. 2 is a flowchart illustrating a second embodiment of a distributed channel access control method according to the present invention. As shown in fig. 2, the method of the present invention may comprise:
step S210, receiving a request for adjusting the user level of the terminal.
And step S211, adjusting the user level of the terminal according to the request.
Step S212, according to the adjusted user level, adjusting the distributed channel access parameter of the terminal.
Step S213, notifying the terminal of the adjustment result of the user level and the distributed channel access parameter, so that the terminal obtains the distributed channel access parameter matched with the user level.
Step S214, according to the data priority of the data being transmitted by the terminal, searching a transmission queue corresponding to the data priority.
Step S215, according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues;
step S216, storing the data being transmitted by the terminal into the searched transmission queue corresponding to the user level for transmission.
In a specific implementation, before step S210, the method of the present invention may further include:
creating a plurality of transmission queues, establishing a corresponding relation between the type of each transmission queue and the data priority, and establishing a corresponding relation between the transmission queue under each type and the user level; the number of each type of transmission queue is two or more, a plurality of transmission queues of the same type transmit data of the same type, and each transmission queue of the plurality of transmission queues of the same type corresponds to one or more user levels.
In particular, the method of the embodiment of the present invention may be applied to various wireless network environments (e.g., wireless local area network WLAN). And the data priority and the transmission queue are divided differently under different network environments, for example, referring to fig. 7, for the EDCA mechanism, the created transmission queue includes a high priority voice (VO _ H) queue, a low priority voice (VO _ L) queue, a high priority video (VI _ H) queue, a low priority video (VI _ L) queue, a high priority best effort (BE _ H) queue, a low priority best effort (BE _ L) queue, a high priority background data (BK _ H) queue, and a low priority background data (BK _ L) queue, which transmit data with a high priority to a low priority.
Wherein the type of the high priority voice (VO _ H) queue and the low priority voice (VO _ L) queue is Voice (VO);
the type of the high priority video (VI _ H) queue and the low priority video (VI _ L) queue is Video (VL);
the types of the high priority best effort (BE _ H) queue and the low priority best effort (BE _ L) queue are Best Effort (BE);
the type of the high priority background data (BK _ H) queue and the low priority background data (BK _ L) queue is background data.
Wherein the high priority voice (VO _ H) queue corresponds to voice data of one or more user levels, and the low priority voice (VO _ L) queue corresponds to voice data of one or more user levels; the high priority video (VI _ H) queue corresponds to video data of one or more user levels, and the low priority video (VI _ L) queue corresponds to video data of one or more user levels; a high priority best effort (BE H) queue corresponds to best effort data of one or more user levels, and a low priority best effort (BE L) queue corresponds to best effort data of one or more user levels; the high priority background data (BK _ H) queue corresponds to one or more user-level background data, and the low priority background data (BK _ L) queue corresponds to one or more user-level background data. Therefore, the EDCA mechanism can have a total of 8 queues to control the transmission of terminal data.
In a specific implementation, when the system is initialized, each terminal is assigned a corresponding user level, and therefore, during the data transmission process of the terminal, a possibility of adjusting the user level of the terminal may occur due to some reasons, for example, a user may temporarily request to raise or lower the user level of the terminal for data needs, for example, when a network is congested, a user is willing to pay to obtain a higher rate, and therefore, the user may send a request for raising the user level by clicking an acceleration button of an application program, and at this time, the request for raising the user level is received in step S210; or when the package is over and a user wants to temporarily reduce the speed, the user can click a speed reduction button of the application program to request to reduce the user level so as to save the system flow. Accordingly, a request to lower the user level may be received at step S210. As another example, in some possible embodiments, the network side may also temporarily request to change the user level, such as: network resources are limited, when there are many high-priority users, the rate of other users needs to be reduced, and at this time, the network side can actively request to reduce the user level of some terminals. Therefore, a request for reducing the user level of the terminal sent by the network side can be received in step S210.
In a specific implementation, the method of the present invention may be completed by an Access Point (AP), and at this time, steps S210 to S213 in the embodiment of the present invention may be completed through a probing process of the AP. The method comprises the following specific steps:
after the AP receives the request to adjust the user level, the AP changes the quality of service (QoS) version number in the next Beacon frame (Beacon) message, and the other fields are not changed.
After all terminals receive Beacon, the terminal discovers the change of the QoS version number and initiates a Probe request message to the AP according to the protocol specification.
After receiving the Probe request, the AP only sends a Probe response (Probe response) to the terminal that needs to adjust the user level, and modifies the EDCA parameter and the user level in the Probe response, so that the terminal obtains a distributed channel access parameter that matches the user level, and does not respond to the Probe request message APs of other terminals.
Therefore, the terminal which subsequently obtains the distributed channel access parameter matched with the user level can transmit uplink data through the adjusted distributed channel access parameter.
In some possible implementations, when the priority queue is found in step S215, the method of the embodiment of the present invention may further include (not shown):
judging whether the transmission queue corresponding to the user level can still store data currently, if so, storing the data transmitted by the terminal into the searched transmission queue corresponding to the user level for transmission; if not, storing the data transmitted by the terminal into other transmission queues in the transmission queue corresponding to the data priority level in the search for sending.
For example, the data being transmitted may be stored in a higher priority queue or a lower priority queue of the transmission queue corresponding to the priority of the data for transmission. For another example, when the data being transmitted by the terminal is stored in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored in the searched transmission queue for transmission. In the specific judgment, whether the transmission queue can store data or not can be judged according to the capacity of the transmission queue and the scheduling strategy. It should be noted that, in order to ensure the data quality of more users as much as possible without wasting resources, a certain rule is used to try to put part or all of the data streams of users having high user level requests into a high priority queue.
As can be seen from the above, in some possible embodiments of the present invention, a transmission queue corresponding to a data priority of data being transmitted by a terminal is searched for; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues; and storing the data transmitted by the terminal into the searched transmission queue for transmission. Therefore, after the method flow of the embodiment of the invention, the data of the terminals of different user levels in the local area are transmitted through different transmission queues. Therefore, the terminal equipment with the high user level can preferentially enjoy the channel resources, and the experience of the user with the high user level is enhanced.
Fig. 3 is a schematic structural diagram of a first embodiment of a distributed channel access control device according to the present invention. As shown in fig. 3, the distributed channel access control apparatus of the present invention may include an obtaining module 30 and an allocating module 32, where the allocating module 32 may further include a searching module 321 and an allocating sub-module 322; wherein,
an obtaining module 30, configured to obtain a user level of a terminal and a data priority of data being transmitted by the terminal. In a specific implementation, when receiving data being transmitted by a terminal, the embodiment of the present invention may obtain information such as an active user level and a data priority.
The allocating module 32 is configured to store the data being transmitted by the terminal into a corresponding transmission queue for transmission according to the user level and the data priority of the terminal acquired by the acquiring module 30. In this embodiment, the searching module 321 is configured to search, according to a data priority of data being transmitted by a terminal, a transmission queue corresponding to the data priority, and search, according to a user level of the terminal, a transmission queue corresponding to the user level in the searched transmission queue corresponding to the data priority; and an allocating submodule 322, configured to store the data being transmitted by the terminal into the found transmission queue corresponding to the user level for transmission.
In a specific implementation, the distributed channel Access control device of the present invention may be a wireless network Access device such as an Access Point (AP) that communicates with a terminal.
In a specific implementation, the apparatus according to the embodiment of the present invention may further include a creating module, configured to create a plurality of transmission queues, establish a correspondence between types of the transmission queues and data priorities, and establish a correspondence between the transmission queues of the types and user levels; the number of each type of transmission queue is two or more, a plurality of transmission queues of the same type transmit data of the same type, and each transmission queue of the plurality of transmission queues of the same type corresponds to one or more user levels.
In particular, the device of the embodiment of the present invention may be applied to various wireless network environments (e.g., a wireless local area network WLAN). And the data priority and the transmission queue are divided differently under different network environments, for example, referring to fig. 7, for the EDCA mechanism, the created transmission queue includes a high priority voice (VO _ H) queue, a low priority voice (VO _ L) queue, a high priority video (VI _ H) queue, a low priority video (VI _ L) queue, a high priority best effort (BE _ H) queue, a low priority best effort (BE _ L) queue, a high priority background data (BK _ H) queue, and a low priority background data (BK _ L) queue, which transmit data with a high priority to a low priority.
Wherein the type of the high priority voice (VO _ H) queue and the low priority voice (VO _ L) queue is Voice (VO);
the type of the high priority video (VI _ H) queue and the low priority video (VI _ L) queue is Video (VL);
the types of the high priority best effort (BE _ H) queue and the low priority best effort (BE _ L) queue are Best Effort (BE);
the types of the high priority background data (BK _ H) queue and the low priority background data (BK _ L) queue are background data.
Wherein the high priority voice (VO _ H) queue corresponds to voice data of one or more user levels, and the low priority voice (VO _ L) queue corresponds to voice data of one or more user levels; the high priority video (VI _ H) queue corresponds to video data of one or more user levels, and the low priority video (VI _ L) queue corresponds to video data of one or more user levels; a high priority best effort (BE H) queue corresponds to best effort data of one or more user levels, and a low priority best effort (BE L) queue corresponds to best effort data of one or more user levels; the high priority background data (BK _ H) queue corresponds to one or more user-level background data, and the low priority background data (BK _ L) queue corresponds to one or more user-level background data. Therefore, the EDCA mechanism can have a total of 8 queues to control the transmission of terminal data.
Therefore, the search module 321 can perform a corresponding search by using the created result.
In some possible embodiments, each terminal is assigned a corresponding user level at the time of system initialization, so the lookup module 321 may perform a lookup of the queue according to the saved user levels of the pre-assigned terminals.
In some possible embodiments, the user may temporarily request to raise or lower the user level of the terminal for data needs, for example, when a network is congested and a certain user is willing to pay to obtain a higher rate, the user may raise the user level by clicking an acceleration button of the application, or, if the package is faster than the certain user wants a temporary deceleration rate, the user may click a deceleration button of the application to lower the user level to save system traffic. Accordingly, the lookup module 321 may lookup an appropriate queue for the user whose user level is updated according to the user's request.
In some possible embodiments, the network side may also temporarily request to change the user level, such as: network resources are limited, when there are many high-priority users, the rate of other users needs to be reduced, and at this time, the network side can actively reduce the user level of some terminals. Therefore, the searching module 321 can search an appropriate queue for the user with the updated user level according to the request of the network side.
In some possible embodiments, the different transmit queues and the queues of the transmit queues are divided by different distributed channel access parameters, for example, for the EDCA mechanism, the transmit queues and the queues of the transmit queues are divided by AIFSN (arbitration inter frame arbitration number), ECWmin (explicit form of CWmin minimum contention window index), ecwmmax (explicit form of CWmax maximum contention window index), TXOPlimit (transmission opportunity limit), and ACK-policy (ACK policy).
AIFSN: the WMM can configure different idle waiting time lengths aiming at different ACs, and the larger the AIFSN value is, the longer the idle waiting time of the user is.
ECWmin and ECWmax: these two values determine the average back-off time value, the larger the value, the longer the average back-off time for the user.
TXOPLimit: after the user successfully competes for one time, the maximum time length of the channel can be occupied, the larger the value of the maximum time length is, the longer the time length of the channel which can be occupied by the user at one time is, if the value is 0, only one message can be sent after the channel is occupied every time.
In some possible implementations, when the lookup module 321 finds the transmission queue corresponding to the user level, the apparatus of the embodiment of the present invention may further include (not shown):
a determining module, configured to determine whether the transmission queue corresponding to the user level can still store data currently, and if the determination result is yes, the allocating submodule 322 stores the data being transmitted by the terminal into the found transmission queue corresponding to the user level for sending; if not, the allocating submodule 322 stores the data being transmitted by the terminal into other transmission queues in the transmission queue corresponding to the data priority in the lookup table for transmission.
For example, the data being transmitted may be stored in a higher priority queue or a lower priority queue of the transmission queue corresponding to the priority of the data for transmission. For another example, when the data being transmitted by the terminal is stored in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored in the searched transmission queue for transmission. In the specific judgment, whether the transmission queue can store data or not can be judged according to the capacity of the transmission queue and the scheduling strategy. It should be noted that, in order to ensure the data quality of more users as much as possible without wasting resources, a certain rule is used to try to put part or all of the data streams of users having high user level requests into a high priority queue.
As can be seen from the above, in some possible embodiments of the present invention, a transmission queue corresponding to a data priority of data being transmitted by a terminal is searched for; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues; and storing the data transmitted by the terminal into the searched transmission queue for transmission. Therefore, after the method flow of the embodiment of the invention, the data of the terminals of different user levels in the local area are transmitted through different transmission queues. Therefore, the terminal equipment with the high user level can preferentially enjoy the channel resources, and the experience of the user with the high user level is enhanced.
Fig. 4 is a schematic structural diagram of a second embodiment of the distributed channel access control device according to the present invention. As shown in fig. 4, the distributed channel access control apparatus of the present invention may include a receiving module 41, an adjusting module 42, a sending module 43, an obtaining module 44, and an allocating module 45, wherein:
a receiving module 41, configured to receive an adjustment request for adjusting a user level of the terminal;
an adjusting module 42, configured to adjust the user level of the terminal according to the request received by the receiving module 41, and adjust the distributed channel access parameter of the terminal according to the adjusted user level;
a sending module 43, configured to notify the terminal of the adjustment result of the user level and the distributed channel access parameter by the adjusting module 42, so that the terminal obtains the distributed channel access parameter matching the user level.
An obtaining module 44, configured to obtain a user level of a terminal and a data priority of data being transmitted by the terminal. In a specific implementation, when receiving data being transmitted by a terminal, the embodiment of the present invention may obtain information such as an active user level and a data priority.
The allocating module 45 is configured to store the data being transmitted by the terminal into a corresponding transmission queue for transmission according to the user level and the data priority of the terminal acquired by the acquiring module 44. In this embodiment, the searching module 451 is configured to search, according to a data priority of data being transmitted by a terminal, a transmission queue corresponding to the data priority, and search, according to a user level of the terminal, a transmission queue corresponding to the user level in the searched transmission queue corresponding to the data priority; and the allocating submodule 452 is configured to store the data being transmitted by the terminal into the searched transmission queue for transmission.
In a specific implementation, the distributed channel Access control device of the present invention may be a wireless network Access device such as an Access Point (AP) that communicates with a terminal.
In a specific implementation, when the system is initialized, each terminal is assigned a corresponding user level, and therefore, in a process of performing data by the terminal, a possibility of adjusting the user level of the terminal may occur due to some reasons, for example, a user may temporarily request to raise or lower the user level of the terminal for data needs, for example, when a network is congested, a user is willing to pay to obtain a higher rate, and therefore, the user may send a request for raising the user level by clicking an acceleration button of an application program, and at this time, the receiving module 41 receives the request for raising the user level; or when the package is over and a user wants to temporarily reduce the speed, the user can click a speed reduction button of the application program to request to reduce the user level so as to save the system flow. Accordingly, the receiving module 41 may receive a request to reduce the user level. As another example, in some possible embodiments, the network side may also temporarily request to change the user level, such as: network resources are limited, when there are many high-priority users, the rate of other users needs to be reduced, and at this time, the network side can actively request to reduce the user level of some terminals. Therefore, the receiving module 41 can receive a request for reducing the user level of the terminal sent by the network side.
In a specific implementation, the apparatus according to the embodiment of the present invention may further include a creating module, configured to create a plurality of transmission queues, establish a correspondence between types of the transmission queues and data priorities, and establish a correspondence between the transmission queues of the types and user levels; the number of each type of transmission queue is two or more, a plurality of transmission queues of the same type transmit data of the same type, and each transmission queue of the plurality of transmission queues of the same type corresponds to one or more user levels.
In particular, the device of the embodiment of the present invention may be applied to various wireless network environments (e.g., a wireless local area network WLAN). And the data priority and the transmission queue are divided differently under different network environments, for example, referring to fig. 7, for the EDCA mechanism, the created transmission queue includes a high priority voice (VO _ H) queue, a low priority voice (VO _ L) queue, a high priority video (VI _ H) queue, a low priority video (VI _ L) queue, a high priority best effort (BE _ H) queue, a low priority best effort (BE _ L) queue, a high priority background data (BK _ H) queue, and a low priority background data (BK _ L) queue, which transmit data with a high priority to a low priority.
Wherein the type of the high priority voice (VO _ H) queue and the low priority voice (VO _ L) queue is Voice (VO);
the type of the high priority video (VI _ H) queue and the low priority video (VI _ L) queue is Video (VL);
the types of the high priority best effort (BE _ H) queue and the low priority best effort (BE _ L) queue are Best Effort (BE);
the type of the high priority background data (BK _ H) queue and the low priority background data (BK _ L) queue is background data.
Wherein the high priority voice (VO _ H) queue corresponds to voice data of one or more user levels, and the low priority voice (VO _ L) queue corresponds to voice data of one or more user levels; the high priority video (VI _ H) queue corresponds to video data of one or more user levels, and the low priority video (VI _ L) queue corresponds to video data of one or more user levels; a high priority best effort (BE H) queue corresponds to best effort data of one or more user levels, and a low priority best effort (BE L) queue corresponds to best effort data of one or more user levels; the high priority background data (BK _ H) queue corresponds to one or more user-level background data, and the low priority background data (BK _ L) queue corresponds to one or more user-level background data. Therefore, the EDCA mechanism can have a total of 8 queues to control the transmission of terminal data.
In a specific implementation, the device of the present invention may be an Access Point (AP), and at this time, the receiving module 41, the adjusting module 42, and the sending module 43 may complete the adjustment and notification of the user level through a detection process of the AP. The method comprises the following specific steps:
after the receiving module 41 of the AP receives the request for adjusting the user level, the AP changes the quality of service (QoS) version number in the next Beacon frame (Beacon) message, and does not change other fields.
After all terminals receive Beacon, the terminal discovers the change of the QoS version number and initiates a Probe request message to the AP according to the protocol specification.
After the AP receives the Probe request, the sending module 43 only sends a Probe response (Probe response) to the terminal that needs to adjust the user level, and carries the EDCA parameter and the user level modified by the adjusting module 42 in the Probe response, so that the terminal obtains the distributed channel access parameter matched with the user level, and does not respond to the Probe request message AP of other terminals.
Therefore, the terminal which subsequently obtains the distributed channel access parameter matched with the user level can transmit uplink data through the adjusted distributed channel access parameter.
In some possible implementations, when the lookup module 44 finds the transmission queue corresponding to the user level, the apparatus of the embodiment of the present invention may further include (not shown):
a determining module, configured to determine whether the transmission queue corresponding to the user level can still store data currently, and if the determination is yes, the allocating sub-module 452 stores the data being transmitted by the terminal into the found transmission queue corresponding to the user level for sending; if not, the allocating sub-module 452 stores the data being transmitted by the terminal into other transmission queues in the transmission queue corresponding to the data priority.
For example, the data being transmitted may be stored in a higher priority queue or a lower priority queue of the transmission queue corresponding to the priority of the data for transmission. For another example, when the data being transmitted by the terminal is stored in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored in the searched transmission queue for transmission. In the specific judgment, whether the transmission queue can store data or not can be judged according to the capacity of the transmission queue and the scheduling strategy. It should be noted that, in order to ensure the data quality of more users as much as possible without wasting resources, a certain rule is used to try to put part or all of the data streams of users having high user level requests into a high priority queue.
As can be seen from the above, in some possible embodiments of the present invention, a transmission queue corresponding to a data priority of data being transmitted by a terminal is searched for; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues; and storing the data transmitted by the terminal into the searched transmission queue for transmission. Therefore, after the method flow of the embodiment of the invention, the data of the terminals of different user levels in the local area are transmitted through different transmission queues. Therefore, the terminal equipment with the high user level can preferentially enjoy the channel resources, and the experience of the user with the high user level is enhanced.
Fig. 5 is a schematic structural diagram of a third embodiment of the distributed channel access control device according to the present invention. The present embodiment is different from the embodiment of fig. 3 in that a hardware module composition structure of the device is shown. As shown in fig. 5, the distributed channel access control apparatus of the present invention may include, in terms of hardware components: a processor 51 and a transmitting device 52, wherein:
a processor 51 for obtaining a user level of a terminal and a data priority of data being transmitted by the terminal. Searching a transmission queue corresponding to the data priority according to the data priority of the data being transmitted by the terminal; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues corresponding to the data priority; and storing the data transmitted by the terminal into the searched transmission queue corresponding to the user level.
A sending device 52, configured to send the data stored in the transmission queue corresponding to the user level by the processor 51.
In a specific implementation, the distributed channel Access control device of the present invention may be a wireless network Access device such as an Access Point (AP) that communicates with a terminal.
In a specific implementation, the processor 51 of the device according to the embodiment of the present invention is further configured to create a plurality of transmission queues, establish a correspondence between types of the transmission queues and data priorities, and establish a correspondence between the transmission queues under the types and user levels; the number of each type of transmission queue is two or more, a plurality of transmission queues of the same type transmit data of the same type, and each transmission queue of the plurality of transmission queues of the same type corresponds to one or more user levels.
In particular, the device of the embodiment of the present invention may be applied to various wireless network environments (e.g., a wireless local area network WLAN). And the data priority and the transmission queue are divided differently under different network environments, for example, referring to fig. 7, for the EDCA mechanism, the created transmission queue includes a high priority voice (VO _ H) queue, a low priority voice (VO _ L) queue, a high priority video (VI _ H) queue, a low priority video (VI _ L) queue, a high priority best effort (BE _ H) queue, a low priority best effort (BE _ L) queue, a high priority background data (BK _ H) queue, and a low priority background data (BK _ L) queue, which transmit data with a high priority to a low priority.
Wherein the type of the high priority voice (VO _ H) queue and the low priority voice (VO _ L) queue is Voice (VO);
the type of the high priority video (VI _ H) queue and the low priority video (VI _ L) queue is Video (VL);
the types of the high priority best effort (BE _ H) queue and the low priority best effort (BE _ L) queue are Best Effort (BE);
the type of the high priority background data (BK _ H) queue and the low priority background data (BK _ L) queue is background data.
Wherein the high priority voice (VO _ H) queue corresponds to voice data of one or more user levels, and the low priority voice (VO _ L) queue corresponds to voice data of one or more user levels; the high priority video (VI _ H) queue corresponds to video data of one or more user levels, and the low priority video (VI _ L) queue corresponds to video data of one or more user levels; a high priority best effort (BE H) queue corresponds to best effort data of one or more user levels, and a low priority best effort (BE L) queue corresponds to best effort data of one or more user levels; the high priority background data (BK _ H) queue corresponds to one or more user-level background data, and the low priority background data (BK _ L) queue corresponds to one or more user-level background data. Therefore, the EDCA mechanism can have a total of 8 queues to control the transmission of terminal data.
Thus, the processor 51 can use the created result to perform a corresponding lookup.
In some possible embodiments, each terminal is assigned a corresponding user level at system initialization, and therefore the processor 51 may perform a queue lookup based on the saved pre-assigned user levels of the terminals.
In some possible embodiments, the user may temporarily request to raise or lower the user level of the terminal for data needs, for example, when a network is congested and a certain user is willing to pay to obtain a higher rate, the user may raise the user level by clicking an acceleration button of the application, or, if the package is faster than the certain user wants a temporary deceleration rate, the user may click a deceleration button of the application to lower the user level to save system traffic. Thus, the processor 51 may find an appropriate queue for the user whose user level is updated according to the user's request.
In some possible embodiments, the network side may also temporarily request to change the user level, such as: network resources are limited, when there are many high-priority users, the rate of other users needs to be reduced, and at this time, the network side can actively reduce the user level of some terminals. Therefore, the processor 51 may find an appropriate queue for the user whose user level is updated according to the request of the network side.
In some possible embodiments, the different transmission queues and the queues of the transmission queues are divided by different distributed channel access parameters, for example, for the EDCA mechanism, the transmission queues and the queues of the transmission queues are divided by AIFSN (arbitration inter frame arbitration number), ECWmin (explicit form of CWmin minimum contention window index), ecwmmax (explicit form of CWmax maximum contention window index), TXOPlimit (transmission opportunity limit), and ACK-policy (ACK policy).
AIFSN: the WMM can configure different idle waiting time lengths aiming at different ACs, and the larger the AIFSN value is, the longer the idle waiting time of the user is.
ECWmin and ECWmax: these two values determine the average back-off time value, the larger the value, the longer the average back-off time for the user.
TXOPLimit: after the user successfully competes for one time, the maximum time length of the channel can be occupied, the larger the value of the maximum time length is, the longer the time length of the channel which can be occupied by the user at one time is, if the value is 0, only one message can be sent after the channel is occupied every time.
In some possible embodiments, when the processor 51 finds the transmission queue corresponding to the user level, the processor 51 of the device according to the embodiment of the present invention is further configured to determine whether the transmission queue corresponding to the user level can still store data currently, and if it is determined that the transmission queue corresponding to the user level can still store data currently, store the data being transmitted by the terminal into the found transmission queue corresponding to the user level for transmission; if not, storing the data transmitted by the terminal into other transmission queues in the transmission queue corresponding to the data priority level in the search for sending.
For example, the data being transmitted may be stored in a higher priority queue or a lower priority queue of the transmission queue corresponding to the priority of the data for transmission. For another example, when the data being transmitted by the terminal is stored in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored in the searched transmission queue for transmission. In the specific judgment, whether the transmission queue can store data or not can be judged according to the capacity of the transmission queue and the scheduling strategy. It should be noted that, in order to ensure the data quality of more users as much as possible without wasting resources, a certain rule is used to try to put part or all of the data streams of users having high user level requests into a high priority queue.
As can be seen from the above, in some possible embodiments of the present invention, a transmission queue corresponding to a data priority of data being transmitted by a terminal is searched for; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues; and storing the data transmitted by the terminal into the searched transmission queue for transmission. Therefore, after the method flow of the embodiment of the invention, the data of the terminals of different user levels in the local area are transmitted through different transmission queues. Therefore, the terminal equipment with the high user level can preferentially enjoy the channel resources, and the experience of the user with the high user level is enhanced.
Fig. 6 is a schematic structural diagram of a fourth embodiment of the distributed channel access control apparatus according to the present invention. The present embodiment is different from the embodiment of fig. 4 in that a hardware module composition structure of the device is shown. As shown in fig. 6, the distributed channel access control apparatus of the present invention may include, in terms of hardware components: receiving means 61, transmitting means 62 and processor 63, wherein:
receiving means 61 for receiving an adjustment request for adjusting a user level of the terminal;
a processor 63, configured to adjust a user level of the terminal according to the request received by the receiving apparatus 61, and adjust a distributed channel access parameter of the terminal according to the adjusted user level;
a sending device 62, configured to notify the terminal of the adjustment result of the user level and the distributed channel access parameter by the processor 63, so that the terminal obtains the distributed channel access parameter matching the user level.
Further, the processor 63 is further configured to obtain a user level of a terminal and a data priority of data being transmitted by the terminal, search a transmission queue corresponding to the data priority according to the obtained data priority, and search a transmission queue corresponding to the user level in the searched transmission queue corresponding to the data priority according to the user level of the terminal; storing the data transmitted by the terminal into the searched transmission queue;
a sending device 62, configured to send the data stored in the transmission queue corresponding to the user level by the processor 63.
In a specific implementation, the distributed channel Access control device of the present invention may be a wireless network Access device such as an Access Point (AP) that communicates with a terminal.
In a specific implementation, when the system is initialized, each terminal is assigned a corresponding user level, and therefore, in the process of performing data by the terminal, a possibility of adjusting the user level of the terminal may occur due to some reasons, for example, a user may temporarily request to raise or lower the user level of the terminal for data needs, for example, when a network is congested, a user is willing to pay to obtain a higher rate, and therefore, the user may send a request for raising the user level by clicking an acceleration button of an application program, and at this time, the receiving device 61 receives the request for raising the user level; or when the package is over and a user wants to temporarily reduce the speed, the user can click a speed reduction button of the application program to request to reduce the user level so as to save the system flow. Therefore, the receiving device 61 can receive a request for lowering the user level. As another example, in some possible embodiments, the network side may also temporarily request to change the user level, such as: network resources are limited, when there are many high-priority users, the rate of other users needs to be reduced, and at this time, the network side can actively request to reduce the user level of some terminals. Therefore, the receiving device 61 can receive a request for reducing the user level of the terminal sent by the network side.
In a specific implementation, the processor 63 in the embodiment of the present invention is further configured to create a plurality of transmission queues, establish a correspondence between types of the transmission queues and data priorities, and establish a correspondence between the transmission queues of the types and user levels; the number of each type of transmission queue is two or more, a plurality of transmission queues of the same type transmit data of the same type, and each transmission queue of the plurality of transmission queues of the same type corresponds to one or more user levels.
In particular, the device of the embodiment of the present invention may be applied to various wireless network environments (e.g., a wireless local area network WLAN). And the data priority and the transmission queue are divided differently under different network environments, for example, referring to fig. 7, for the EDCA mechanism, the created transmission queue includes a high priority voice (VO _ H) queue, a low priority voice (VO _ L) queue, a high priority video (VI _ H) queue, a low priority video (VI _ L) queue, a high priority best effort (BE _ H) queue, a low priority best effort (BE _ L) queue, a high priority background data (BK _ H) queue, and a low priority background data (BK _ L) queue, which transmit data with a high priority to a low priority.
Wherein the type of the high priority voice (VO _ H) queue and the low priority voice (VO _ L) queue is Voice (VO);
the type of the high priority video (VI _ H) queue and the low priority video (VI _ L) queue is Video (VL);
the types of the high priority best effort (BE _ H) queue and the low priority best effort (BE _ L) queue are Best Effort (BE);
the type of the high priority background data (BK _ H) queue and the low priority background data (BK _ L) queue is background data.
Wherein the high priority voice (VO _ H) queue corresponds to voice data of one or more user levels, and the low priority voice (VO _ L) queue corresponds to voice data of one or more user levels; the high priority video (VI _ H) queue corresponds to video data of one or more user levels, and the low priority video (VI _ L) queue corresponds to video data of one or more user levels; a high priority best effort (BE H) queue corresponds to best effort data of one or more user levels, and a low priority best effort (BE L) queue corresponds to best effort data of one or more user levels; the high priority background data (BK _ H) queue corresponds to one or more user-level background data, and the low priority background data (BK _ L) queue corresponds to one or more user-level background data. Therefore, the EDCA mechanism can have a total of 8 queues to control the transmission of terminal data.
In a specific implementation, the device of the present invention may be an Access Point (AP), and at this time, the receiving device 61, the processor 63, and the sending device 43 may complete the adjustment and notification of the user level through a detection process of the AP. The method comprises the following specific steps:
after the receiving device 61 of the AP receives the request for adjusting the user level, the AP changes the quality of service (QoS) version number in the next Beacon frame (Beacon) message, and does not change other fields.
After all terminals receive Beacon, the terminal discovers the change of the QoS version number and initiates a Probe request message to the AP according to the protocol specification.
After receiving the Probe request, the AP sends a Probe response (Probe response) only to the terminal that needs to adjust the user level, and carries the EDCA parameter and the user level modified by the processor 63 in the Probe response, so that the terminal obtains the distributed channel access parameter matching the user level, and does not respond to the Probe request message AP of other terminals.
Therefore, the terminal which subsequently obtains the distributed channel access parameter matched with the user level can transmit uplink data through the adjusted distributed channel access parameter.
In some possible embodiments, when the processor finds the transmission queue corresponding to the user level, the processor 63 of the embodiment of the present invention is further configured to determine whether the transmission queue corresponding to the user level can still store data currently, and if it is determined that the transmission queue corresponding to the user level can still store data currently, store the data being transmitted by the terminal into the found transmission queue corresponding to the user level for transmission; if not, storing the data transmitted by the terminal into other transmission queues in the transmission queue corresponding to the data priority level in the search for sending.
For example, the data being transmitted may be stored in a higher priority queue or a lower priority queue of the transmission queue corresponding to the priority of the data for transmission. For another example, when the data being transmitted by the terminal is stored in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored in the searched transmission queue for transmission. In the specific judgment, whether the transmission queue can store data or not can be judged according to the capacity of the transmission queue and the scheduling strategy. It should be noted that, in order to ensure the data quality of more users as much as possible without wasting resources, a certain rule is used to try to put part or all of the data streams of users having high user level requests into a high priority queue.
As can be seen from the above, in some possible embodiments of the present invention, a transmission queue corresponding to a data priority of data being transmitted by a terminal is searched for; according to the user level of the terminal, searching a transmission queue corresponding to the user level in the searched transmission queues; and storing the data transmitted by the terminal into the searched transmission queue for transmission. Therefore, after the method flow of the embodiment of the invention, the data of the terminals of different user levels in the local area are transmitted through different transmission queues. Therefore, the terminal equipment with the high user level can preferentially enjoy the channel resources, and the experience of the user with the high user level is enhanced.
The above-mentioned embodiments are only examples of the present invention, which should not be construed as limiting the scope of the present invention, and therefore, the present invention is not limited by the claims.
Claims (8)
1. A method for controlling access to a distributed channel, comprising:
storing the data transmitted by the terminal into a corresponding transmission queue for sending according to the user level of the terminal and the data priority of the data transmitted by the terminal;
before storing the data being transmitted by the terminal into a corresponding transmission queue for transmission according to the user level of the terminal and the data priority of the data being transmitted by the terminal, the method further comprises the following steps: creating a plurality of transmission queues, and establishing a corresponding relation between each transmission queue and the data priority and the user level;
wherein the created transmission queues comprise a high-priority voice (VO _ H) queue, a low-priority voice (VO _ L) queue, a high-priority video (VI _ H) queue, a low-priority video (VI _ L) queue, a high-priority best effort (BE _ H) queue, a low-priority best effort (BE _ L) queue, a high-priority background data (BK _ H) queue and a low-priority background data (BK _ L) queue, and the priorities of the queues for transmitting data are changed from high to low.
2. The distributed channel access control method of claim 1, wherein before storing the data being transmitted by the terminal in the corresponding transmission queue for transmission according to the user level of the terminal and the data priority of the data being transmitted by the terminal, further comprising:
receiving a request for adjusting a user level of the terminal;
adjusting the user level of the terminal according to the request;
adjusting the distributed channel access parameters of the terminal according to the adjusted user level;
and informing the terminal of the adjustment result of the user level and the distributed channel access parameter so as to enable the terminal to obtain the distributed channel access parameter matched with the user level.
3. The distributed channel access control method of any one of claims 1-2, wherein, before storing the data being transmitted by the terminal into the corresponding transmission queue for transmission according to the user level of the terminal and the data priority of the data being transmitted by the terminal, determining whether the transmission queue can still store the data currently, and if so, storing the data being transmitted by the terminal into the transmission queue for transmission; if not, storing the data transmitted by the terminal into other transmission queues for transmission.
4. The distributed channel access control method according to claim 3, wherein when storing data being transmitted by the terminal in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored for transmission.
5. A distributed channel access control device, comprising:
the terminal comprises an acquisition module, a transmission module and a processing module, wherein the acquisition module is used for acquiring the user level of the terminal and the data priority of the data transmitted by the terminal;
the distribution module is used for storing the data transmitted by the terminal into a corresponding transmission queue for transmission according to the user level and the data priority of the terminal acquired by the acquisition module;
wherein, still include:
the creating module is used for creating a plurality of transmission queues and establishing the corresponding relation between each transmission queue and the data priority and the user level;
the transmission queues created by the creation module comprise a high-priority voice (VO _ H) queue, a low-priority voice (VO _ L) queue, a high-priority video (VI _ H) queue, a low-priority video (VI _ L) queue, a high-priority best effort (BE _ H) queue, a low-priority best effort (BE _ L) queue, a high-priority background data (BK _ H) queue and a low-priority background data (BK _ L) queue, and the priorities of the transmission queues for transmitting data are changed from high to low.
6. The distributed channel access control device of claim 5, further comprising:
a receiving module, configured to receive an adjustment request for adjusting a user level of the terminal;
the adjusting module is used for adjusting the user level of the terminal according to the request received by the receiving module and adjusting the distributed channel access parameters of the terminal according to the adjusted user level;
and the sending module is used for informing the terminal of the adjustment result of the user level and the distributed channel access parameter by the adjustment module so as to enable the terminal to obtain the distributed channel access parameter matched with the user level.
7. The distributed channel access control device of any of claims 5-6, further comprising:
a determining module, configured to determine whether data can still be stored in the transmission queue currently before the allocating module stores the data being transmitted by the terminal into the corresponding transmission queue for transmission according to the user level and the data priority of the terminal acquired by the acquiring module;
the distribution module is specifically configured to store the data being transmitted by the terminal into the transmission queue for transmission when the determination result determined by the determination module is yes; and when the judgment result of the judgment module is negative, storing the data transmitted by the terminal into other transmission queues for transmission.
8. The distributed channel access control device according to claim 7, wherein when the allocation module stores data being transmitted by the terminal in another transmission queue for transmission, the data being transmitted by the terminal is preferentially stored in the transmission queue in which the data of the terminal is stored for transmission.
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| US9756626B2 (en) * | 2014-11-13 | 2017-09-05 | Intel IP Corporation | High-efficiency Wi-Fi (HEW) station and access point (AP) and method for signaling of channel resource allocations |
| CN105050199A (en) * | 2015-06-09 | 2015-11-11 | 西北工业大学 | Uplink access method of orthogonal frequency division multiple access mechanism |
| CN109326108A (en) * | 2017-08-01 | 2019-02-12 | 深圳市天工测控技术有限公司 | Unmanned aerial vehicle (UAV) control method, system, controlling terminal and unmanned plane based on WIFI |
| CN110113822B (en) * | 2019-05-15 | 2020-08-25 | 武汉大学 | Heterogeneous network fusion access method for future wireless communication |
| CN117858266B (en) * | 2024-03-07 | 2024-07-12 | 北京智芯微电子科技有限公司 | Backoff time updating method and device, chip and station |
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