WO2013159629A1 - 一种帧优先级的动态调整的方法和装置 - Google Patents
一种帧优先级的动态调整的方法和装置 Download PDFInfo
- Publication number
- WO2013159629A1 WO2013159629A1 PCT/CN2013/073386 CN2013073386W WO2013159629A1 WO 2013159629 A1 WO2013159629 A1 WO 2013159629A1 CN 2013073386 W CN2013073386 W CN 2013073386W WO 2013159629 A1 WO2013159629 A1 WO 2013159629A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- terminal
- priority
- competition window
- arbitration
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to the field of communications, and in particular, to a method and apparatus for dynamically adjusting a frame priority.
- DCF Distributed Coordination Function
- EDC Enhanced Distributed Channel Access
- the priority of the frame is set in advance and does not change as the scene changes.
- STAs terminals
- TIM Traffic Indicia Map
- the Beacon will contain a group ID, and any terminal belonging to the group ID is considered to be the current group.
- the node belonging to the current group can use the DCF/EDCA mode to send uplink data or PS-Poll to the AP to obtain downlink data before the next Beacon.
- STAs that obtain downlink data directly from the AP without listening to the TIM and non-current group STAs wish to upload data to the AP.
- These STAs will compete with the STAs in the current group.
- the same priority is applied to these STAs.
- members of the current group do not enjoy high priority treatment. Therefore, the current group member access channel is not protected, and still faces serious competition, which requires multiple retransmissions, thereby increasing energy consumption. Summary of the invention
- Embodiments of the present invention provide a method and apparatus for dynamically adjusting a frame priority to protect a priority of a specific packet terminal access channel.
- An embodiment of the present invention provides a method for dynamically adjusting a frame priority, where the method includes: Determining a frame priority adjustment manner according to a requirement of a terminal, an access point, or a channel condition, where the frame is sent between the terminal and an access point, where the frame priority is determined in advance; according to the determined frame priority Level adjustment mode, setting a competition window or an arbitration frame interval, the competition window indicating an upper limit value of a counter value of a start counter before transmitting the frame, the arbitration frame spacing indicating a channel idle time, the channel being idle Time is the condition for starting the counter before sending the frame.
- An embodiment of the present invention provides a dynamic adjustment apparatus for frame priority, where the apparatus includes: an adjustment mode determining module, and a setting module; and the adjusting mode determining module is configured to determine according to a requirement of a terminal, an access point, or a channel condition.
- a frame priority adjustment manner the frame is sent between the terminal and an access point, each terminal corresponding to the access point is divided into a plurality of packets, and the terminal is classified into the multiple packets.
- the frame priority is determined in advance; the setting module is configured to set a competition window or an arbitration frame spacing according to the determined adjustment manner of the frame priority, where the contention window indicates that the frame is sent.
- the upper limit of the count value of the pre-start counter, the arbitration frame spacing represents the channel idle time, and the channel idle time is a condition for starting the counter before transmitting the frame.
- the embodiment of the invention provides a network access point device.
- the device includes: a frame priority dynamic adjustment device according to any one of claims 9 to 16, and a sending module; the sending module is configured to set the contention window of the frame priority dynamic adjusting device or The arbitration frame interval is sent to the terminal.
- the embodiment of the invention provides a terminal.
- the terminal includes: the frame priority dynamic adjustment device according to any one of claims 9 to 16, and an uplink frame setting module, where the uplink frame setting module is configured to dynamically adjust the device according to the frame priority
- the uplink frame is set by the contention window or the arbitration frame, and the uplink frame is sent by the terminal to the network device.
- the priority of the access channel of the terminal is dynamically adjusted according to the requirement of the terminal, the access point, or the channel condition, and the priority of the terminal access channel is reduced, thereby reducing the number of retransmissions and reducing the energy consumption.
- FIG. 1 is a flow chart of an embodiment of a method for dynamically adjusting a frame priority according to the present invention
- FIG. 2 is a flowchart of an access point and a terminal working mode in a power saving mode according to an embodiment of the present invention
- FIG. 3 is a flowchart of still another embodiment of a dynamic adjustment method of a frame priority according to the present invention
- FIG. 4 is a structural diagram of an embodiment of a frame priority dynamic adjustment apparatus according to the present invention.
- FIG. 5 is a structural diagram of still another embodiment of a dynamic adjustment apparatus for frame priority according to the present invention
- FIG. 6 is a structural diagram of an embodiment of a network access point device according to the present invention
- FIG. 7 is a structural diagram of still another embodiment of a network access point device according to the present invention.
- FIG. 8 is a structural diagram of an embodiment of a terminal of the present invention.
- FIG. 9 is a structural diagram of still another embodiment of the terminal of the present invention.
- FIG. 1 provides a flowchart of a method for dynamically adjusting a frame priority according to an embodiment of the present invention.
- the method includes: S101, according to the requirements of the terminal, the access point, or the channel status, determining a mode for adjusting the frame priority, where the frame is sent by the terminal to the access point, and each terminal corresponding to the access point is divided into multiple groups.
- the terminal is classified into a certain one of the plurality of packets, and the frame priority is determined in advance;
- the frame priority is set in advance and does not change with the scene change.
- the STA needs packet access, thereby reducing the size of the Traffic Indicating Information (TIM) in the Beacon and each The number of times the common coordinating channel STA.
- the Beacon contains a group ID, and any STA that belongs to this specific group ID is considered to be a specific group STA.
- a STA in a specific group can use the DCF/EDCA mode to send uplink data or PS-Po 11 to the AP to obtain downlink data before the next Beacon.
- DCF Distributed Coordination Function
- EDCA Distributed Channel Access
- different QoS is provided for different AC data by defining different AIFS and CWmin and CWmax for different Access Categories (ACs).
- the frame is divided according to content: a background frame, a best-effort transmission frame, a video frame, and a voice frame, and the frames are arranged in descending order of the frame priority level as: a background frame, a best-effort transmission frame, a video frame, and a voice frame.
- FIG. 2 provides a flow chart of the working mode of the access point and the terminal in the power saving mode according to an embodiment of the present invention.
- the main working method is that the STA that needs to work in the power saving mode informs the access point (AP) that it needs to work in the PS mode.
- the STA goes to sleep, and periodically wakes up listening to B eac on according to the value defined in L i s t en I n t er val.
- the AP periodically broadcasts Beacon, which contains TIM information.
- the TIM consists of a series of 0's and 1's.
- the STA When a bit in the TIM is 1, the STA indicating the ID corresponding to the bit has downlink data.
- the STA will send a PS-Poll (upstream frame) to the channel after the current Beacon.
- the competition method can use DCF or EDCA.
- the AP After the AP successfully receives the PS-Poll of the STA, the AP immediately sends the downlink data (downlink frame) of the STA to the STA, or sends an ACK to inform that it will send downlink data to it later.
- the DCF or EDCA competition channel is continued.
- the frame includes an uplink frame sent by the terminal to an access point, and also includes a downlink frame sent by the access point to the terminal.
- the uplink frame includes a data frame, a management frame, or a control frame.
- the requirements of the terminal, the access point, and the channel status include: raising or not raising the frame priority of the specific packet according to the grouping information of the terminal, or promoting or not lifting the grouping information of the terminal according to the busy condition of the channel.
- the priority of the access channel of the terminal is dynamically adjusted according to the requirement of the terminal, the access point, or the channel condition, and the priority of the terminal access channel is reduced, thereby reducing the number of retransmissions and reducing the energy consumption.
- the method for determining the priority of the frame according to the requirement of the terminal, the access point, or the channel condition includes: when the frame priority of the terminal belonging to the specific group needs to be increased, a frame priority of a terminal belonging to the specific packet, or a frame priority of a terminal not belonging to the specific packet; when it is required to raise a frame priority of a terminal not belonging to a specific packet, lowering a frame priority belonging to the specific packet terminal Frame priority, or increase the frame priority that does not belong to the particular packet terminal.
- the determining, by the S101, the adjustment manner of the frame priority according to the requirement of the terminal, the access point, or the channel status specifically includes: S102: approving or rejecting the special demand terminal according to the busyness of the current channel.
- the frame priority is increased or decreased, so as to determine the adjustment manner of the frame priority of the special demand terminal; and according to the determined adjustment manner of the frame priority, setting the competition window or the arbitration frame interval includes:
- the frame priority adjustment manner of the special demand terminal is set to set a competition window or an arbitration frame interval.
- a STA with special needs negotiates with the AP to change its access priority.
- the setting a competition window or an arbitration frame interval includes : reducing the maximum contention window, the minimum contention window, or the arbitration frame spacing.
- the method when the frame priority of the terminal is increased, the method further includes: setting a priority level of the frame to be higher;
- the frame is divided according to content: a background frame, a best-effort transmission frame, a video frame, and a voice frame, and the frames are in descending order according to a frame priority level.
- background frame best effort transmission frame
- video frame speech frame.
- setting the priority level of the frame to be higher may set the priority level of the frame as a speech frame.
- the setting a competition window or an arbitration frame interval includes : increasing the maximum competition window, the minimum competition window, or the arbitration frame spacing.
- a larger AIFS /CTmin/CTmax value will cause the STA to wait longer for access. Therefore, channel access is less likely to be obtained than STAs with smaller values.
- the method when the frame priority of the terminal is decreased, the method further includes: setting a priority level of the frame to be lower;
- the frame is divided according to content: a background frame, a best-effort transmission frame, a video frame, and a voice frame, and the frames are arranged according to a frame priority level from low to high: Try to transmit frames, video frames, and speech frames.
- setting the priority level of the frame to be higher may set the priority level of the frame as a background frame.
- FIG. 3 is a flowchart of still another embodiment of a dynamic adjustment method for frame priority according to the present invention. After the setting of the contention window or the arbitrage frame interval according to the determined adjustment manner of the frame priority, the method further includes: S105, in a preset time period, according to the adjustment manner of the frame, the frame sent by the terminal The priority of the adjusted frame is maintained.
- the time period is determined by the terminal and notified to the access point, or determined by the access point and the terminal.
- Embodiments of the present invention provide a dynamic adjustment apparatus for frame priority.
- FIG. 4 it is a structural diagram of a dynamic adjustment apparatus for frame priority according to an embodiment of the present invention.
- the device includes: an adjustment mode determining module 401, a setting module 403;
- the adjustment mode determining module is configured to determine a frame priority adjustment manner according to a requirement of a terminal, an access point, or a channel condition, where the frame is sent between the terminal and an access point, where the access point corresponds
- Each terminal is divided into a plurality of packets, the terminal is classified into a certain one of the plurality of packets, and the frame priority is determined in advance;
- the setting module is configured to set a competition window or an arbitration frame spacing according to the determined adjustment manner of the frame priority, where the competition window includes a maximum competition window and a minimum competition window, where the competition window is represented by Sending an upper limit of the count value of the counter before sending the frame, the maximum contention window indicating a maximum value allowed by the contention window, and the minimum contention window indicating a starting value of the contention window
- the arbitration frame spacing represents a channel idle time, which is a condition for starting a counter before transmitting the frame.
- the adjustment mode determining module 401 is specifically configured to: when a frame priority of a terminal belonging to a specific group needs to be increased, increase a frame priority of a terminal belonging to the specific group, or reduce a frame of a terminal that does not belong to the specific group Priority; when it is necessary to raise the frame priority of a terminal that does not belong to a specific packet, the frame priority belonging to the specific packet terminal is lowered, or the frame priority that does not belong to the specific packet terminal is increased.
- the adjustment mode determining module 401 is further configured to: after determining the adjustment mode of the frame priority according to the requirement of the terminal, the access point, or the channel condition, according to the busyness of the current channel, the busy condition of the access point, Or the receiving status of the terminal, the approval or rejection of the frame priority of the special demand terminal to determine or adjust the frame priority of the special demand terminal; the setting module is configured to determine according to the adjustment manner The module determines the frame priority adjustment manner of the special demand terminal, and sets a competition window or an arbitration frame interval.
- the setting module 403 when the frame priority of the terminal is increased, the setting module 403 is configured to: reduce the maximum contention window, the minimum The contention window or the arbitration frame spacing.
- the setting module 403 when the frame priority of the terminal is increased, is further configured to: set a priority level of the frame to be higher; in the improved distributed channel In the access mode, the frame is divided into content according to content: a background frame, a best-effort transmission frame, a video frame, and a voice frame, and the frames are arranged according to a frame priority level from low to high: a background frame, a best-effort transmission frame, and a video frame. , speech frames.
- the setting mode 403 block when the frame priority of the terminal is lowered, is configured to: increase the maximum contention window, the minimum The competition window or the arbitration frame spacing.
- the setting module 403 is further configured to: set a priority level of the frame to be lower; in the improved distributed channel In the access mode, the frame is divided into content according to content: a background frame, a best-effort transmission frame, a video frame, and a voice frame, and the frames are arranged according to a frame priority level from low to high: a background frame, a best-effort transmission frame, and a video frame. , speech frames.
- Fig. 5 is a block diagram showing still another embodiment of the dynamic adjustment apparatus for frame priority of the present invention.
- the device further includes a priority maintaining module 405, and the priority maintaining module is configured to: after the setting module sets the contention window or the arbitration frame interval according to the determined adjustment manner of the frame priority, During the time period, according to the adjustment manner of the frame, the frame sent by the terminal is controlled to maintain the priority of the adjusted frame.
- the embodiment of the invention provides a network access point device.
- 6 and FIG. 6 are structural diagrams of an embodiment of a network access point device according to the present invention.
- the device includes: a frame priority dynamic adjustment device 601 according to any one of claims 9 to 16, and a sending module 603; the sending module is configured to set the competition of the frame priority dynamic adjusting device The window or the arbitration frame spacing is sent to the terminal.
- FIG. 7 is a structural diagram of still another embodiment of a network access point device according to the present invention.
- the device further includes a downlink frame setting module 605, where the downlink frame setting module is configured to set the downlink frame according to the contention window or the arbitration frame interval set by the frame priority dynamic adjustment device, where the downlink frame is A frame is transmitted by the network device to the terminal.
- FIG. 8 and FIG. 8 are structural diagrams of an embodiment of a terminal according to the present invention.
- the terminal includes: a frame priority dynamic adjustment device 801 according to any one of claims 9 to 16, and an uplink frame setting module 803, where the uplink frame setting module is configured to The contention window or the arbitration frame interval set by the frame priority dynamic adjustment device sets the uplink frame, and the uplink frame is sent by the terminal to the network device.
- FIG. 9 is a structural diagram of still another embodiment of the terminal of the present invention.
- the terminal further includes a sending module 805.
- the sending module is configured to send the contention window or the arbitration frame interval set by the frame priority dynamic adjusting device to the network access point device.
- modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
- the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
- the techniques in the embodiments of the present invention can be implemented by means of software plus the necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, and the computer software product may be stored in a storage medium, such as a ROM/RAM. , a diskette, an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or in some portions of the embodiments.
- a computer device which may be a personal computer, server, or network device, etc.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
本发明实施例提供了一种帧优先级的动态调整方法和装置。所述方法包括:根据终端、接入点的需求或者信道状况,确定帧优先级的调整方式,所述帧在所述终端和接入点之间发送,所述接入点对应的各终端被分成多个分组,所述终端被划入所述多个分组中的某个分组;根据确定的所述帧优先级的调整方式,设置竞争窗口或仲裁帧间距,所述竞争窗口表示在发送所述帧前启动计数器的计数值的取值上限,所述仲裁帧间距表示信道空闲时间,所述信道空闲时间是在发送所述帧前启动计数器的条件。本发明实施例通过根据终端、接入点的需求或者信道状况设置竞争窗口或仲裁帧间距,动态调整分组终端接入信道的优先级,减少了重传次数,降低了能耗。
Description
一种帧优先级的动态调整的方法和装置 技术领域 本发明涉及通信领域, 具体涉及一种帧优先级的动态调整的方法和装 置。 背景技术 在现有 802.11标准中, 对帧传输均釆用在分布式协调功能(Di s tr ibuted Coordinat ion Funct ion , DCF)或者改进的分布信道接入 ( Enhanced Di s tr ibuted Channel Acces s , EDCA ) 方式进行竟争。 帧的优先级为事先 设定好的, 而不会随场景改变而改变。 但在某些场景下, 例如在有大量终 端( s tat ion , STA )的情况下,大量终端需要分组接入,从而减少广播 Beacon 中传输指示消息 (Traff ic Indicat ion Map , TIM ) 大小和每次共同竟争 信道 STA的个数。 在分组接入的方式中, Beacon中会包含一个组 ID, 凡是属 于这个组 ID的终端被认为是当前组。 属于当前组的节点可以在当前 Beacon 之后下个 Beacon之前, 使用 DCF/EDCA方式向 AP发送上行数据或者 PS-Poll 来获取下行数据。 考虑到会有不听 TIM而直接从 AP获取下行数据的 STA, 还有非当前组 STA希望上传数据到 AP。这些 STA都会与当前组中的 STA产生 竟争。 而目前的技术中, 对待这些 STA釆用相同的优先级。 也就是说, 当前 组的成员并没有享受高优先级的待遇。 因此当前组成员接入信道没有受到 保护, 仍然会面临严重竟争而导致需要多次重传, 从而增加了能耗。 发明内容
本发明实施例提供了一种帧优先级的动态调整方法和装置, 以保护特定 分组终端接入信道的优先级。
本发明实施例提供了一种帧优先级的动态调整方法, 所述方法包括: 根
据终端、 接入点的需求或者信道状况, 确定帧优先级的调整方式, 所述帧 在所述终端和接入点之间发送, 所述帧优先级事先确定; 根据确定的所述 帧优先级的调整方式, 设置竟争窗口或仲裁帧间距, 所述竟争窗口表示在 发送所述帧前启动计数器的计数值的取值上限, 所述仲裁帧间距表示信道 空闲时间, 所述信道空闲时间是在发送所述帧前启动计数器的条件。
本发明实施例提供了一种帧优先级的动态调整装置 , 所述装置包括: 调整方式确定模块, 设置模块; 所述调整方式确定模块用于根据终端、 接 入点的需求或者信道状况, 确定帧优先级的调整方式, 所述帧在所述终端 和接入点之间发送, 所述接入点对应的各终端被分成多个分组, 所述终端 被划入所述多个分组中的某个分组, 所述帧优先级事先确定; 所述设置模 块用于根据确定的所述帧优先级的调整方式, 设置竟争窗口或仲裁帧间距, 所述竟争窗口表示在发送所述帧前启动计数器的计数值的取值上限, 所述 仲裁帧间距表示信道空闲时间, 所述信道空闲时间是在发送所述帧前启动 计数器的条件。
本发明实施例提供了一种网络接入点设备。 所述设备包括: 包含权利要 求 9至 16任一项所述的帧优先级动态调整装置、 发送模块; 所述发送模块用 于把所述帧优先级动态调整装置设置的所述竟争窗口或所述仲裁帧间距发 送给终端。
本发明实施例提供了一种终端。 所述终端包括: 包含权利要求 9至 16任 一项所述的帧优先级动态调整装置、 上行帧设置模块, 所述上行帧设置模 块用于根据所述帧优先级动态调整装置设置的所述竟争窗口或所述仲裁帧 间距设置所述上行帧, 所述上行帧由所述终端发送给所述网络设备。
本发明实施例通过根据终端、 接入点的需求或者信道状况设置竟争窗口 或仲裁帧间距, 动态调整终端接入信道的优先级, 减少了重传次数, 降低 了能耗。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明帧优先级的动态调整方法一个实施例流程图;
图 2为本发明一个实施例省电模式下接入点和终端工作模式流程图; 图 3为本发明帧优先级的动态调整方法又一个实施例流程图;
图 4为本发明帧优先级的动态调整装置一个实施例的结构图;
图 5为本发明帧优先级的动态调整装置又一个实施例的结构图; 图 6为本发明网络接入点设备一个实施例的结构图;
图 7为本发明网络接入点设备又一个实施例的结构图;
图 8为本发明终端一个实施例的结构图;
图 9为本发明终端又一个实施例的结构图;
具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动的前 提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提供了一种帧优先级的动态调整方法, 如图 1所示, 图 1 提供了本发明一个实施例帧优先级的动态调整方法流程图。 所述方法包括:
S101根据终端、 接入点的需求或者信道状况, 确定帧优先级的调整方 式, 所述帧由所述终端向接入点发送, 所述接入点对应的各终端被分成多 个分组, 所述终端被划入所述多个分组中的某个分组, 所述帧优先级事先 确定;
S103根据确定的所述帧优先级的调整方式, 设置竟争窗口或仲裁帧间 距, 所述竟争窗口包括最大竟争窗口、 最小竟争窗口, 所述竟争窗口表示 在发送所述帧前计数器的计数值, 所述最大竟争窗口表示所述竟争窗口允 许的最大值, 所述最小竟争窗口表示所述竟争窗口的起始值, 所述仲裁帧 间距表示在发送所述帧前启动所述计数器的信道空闲条件。
在现有 802. 11标准中, 帧优先级为事先设定好的, 而不会随场景改变 而改变。
但在某些场景下, 例如在有大量终端(s ta t ion , STA )的情况下, STA 需要分组接入, 从而减少 Beacon 中传输指示消息 (Traff ic Indica t ion Map , TIM ) 大小和每次共同竟争信道 STA的个数。 在分组接入的方式中, Beacon中会包含一个组 ID , 凡是属于这个特定组 ID的 STA被认为是特定组 STA。 属于特定组的 STA可以在当前 Beacon之后下个 Beacon之前, 使用 DCF/EDCA方式向 AP发送上行数据或者 PS-Po 11来获取下行数据。
在分布式协调功能 (Di s tr ibuted Coordina t ion Funct ion , DCF)接 入方式中, 所有参与竟争的 STA需要侦听信道状况, 如果信道在仲裁帧间距 ( arbitration interframe space, AIFS )内保持空闲,贝1 J在 0 J竟争窗口 ( content ion window , CW )之间随机选取一个值作为当前退避窗口的大小, 并且启动倒 计数器进行退避。 因此, 技术器的取值区间是 [0 , CW]。 如果系统一直保持 空闲, 那么每一个时隙倒计数器减一直到计数器值为零。 当倒计数器值为 零后, STA发送相应数据。 如果在倒计数器没有减到零时系统由空闲转变为 忙碌, 则倒计数器冻结, 直到探测到系统空闲时间等于 DIFS再重新启动倒
计数器。 CT初始值设定为最小竟争窗口 CTmin, 之后每次碰撞后, CT值按照 2的指数倍减一的规则进行递增, 直到达到最大竟争窗口 CTmax。
在改进的分布信道接入 ( Enhanced Distributed Channel Access, EDCA ) 方式中, 通过对不同访问类别(Access Category , AC)定义不同的 AIFS以 及 CWmin和 CWmax, 对不同 AC数据提供了不同 QoS。 帧按照内容划分包括: 背 景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级等级从低到高 的顺序排列为: 背景帧、 尽力传输帧、 视频帧、 语音帧。
现有 802. 11标准提供为低能耗 STA提供了一种省电(power saving , PS ) 的工作模式。 如图 2所示, 图 2提供了本发明一个实施例省电模式下接入点 和终端工作模式流程图。 主要工作方法是需要工作在省电模式下的 STA告知 接入点 (access point , AP ) 它需要工作在 PS模式下。 STA进入睡眠, 并 且根据 L i s t en I n t er val中定义的值定期唤醒收听 B eac on。 AP定时广播 Beacon, 其中包含了 TIM信息。 TIM是由一系列 0和 1组成。 当 TIM中某一位为 1时, 表示该位所对应的 ID的 STA有下行数据。 则该 STA会在当前 Beacon后发 送 PS-Poll (上行帧)竟争信道。 竟争方式可以釆用 DCF或者 EDCA。 当 AP成 功收到该 STA的 PS-Poll之后, AP会立刻将该 STA的下行数据(下行帧)发送 给 STA, 或者发送 ACK给告知稍后会给它发送下行数据。 对于有上行数据的 工作在省电模式下的 STA的发送机制, 已有标准没有另行规定, 而是继续沿 用 DCF或者 EDCA竟争信道。
所述帧包括由所述终端向接入点发送的上行帧, 也包括由所述接入点 向终端发送的下行帧。 所述上行帧包括数据帧、 管理帧或者控制帧。
所述终端、 接入点的需求, 信道状况包括根据终端的分组信息, 提升或 不提升特定分组的帧优先级, 或者根据信道的繁忙状况, 提升或者不提升 终端的分组信息。
本发明实施例通过根据终端、 接入点的需求或者信道状况设置竟争窗 口或仲裁帧间距, 动态调整终端接入信道的优先级, 减少了重传次数, 降 低了能耗。
在本发明的另一个实施例中, 所述 S 101根据终端、 接入点的需求或者 信道状况, 确定帧优先级的调整方式包括: 在需要提升属于特定分组的终 端的帧优先级时, 提高属于所述特定分组的终端的帧优先级, 或降低不属 于所述特定分组的终端的帧优先级; 在需要提升不属于特定分组的终端的 帧优先级时, 降低属于所述特定分组终端的帧优先级, 或提高不属于所述 特定分组终端的帧优先级。
在本发明的另一个实施例中, 所述 S 101根据终端、 接入点的需求或者 信道状况, 确定帧优先级的调整方式具体包括: S102根据当前信道的繁忙 程度, 批准或拒绝特殊需求终端的帧优先级提高或降低请求, 从而确定所 述特殊需求终端的帧优先级的调整方式; 所述根据确定的所述帧优先级的 调整方式, 设置竟争窗口或仲裁帧间距包括: 根据确定的所述特殊需求终 端的帧优先级的调整方式, 设置竟争窗口或仲裁帧间距。
有特殊需求的 STA与 AP协商, 改变其接入优先级。
在本发明的另一个实施例中, 在分布式协调功能接入方式或改进的分 布信道接入方式中, 在提高所述终端的帧优先级时, 所述设置竟争窗口或 仲裁帧间距包括: 减小所述最大竟争窗口、 所述最小竟争窗口或所述仲裁 帧间距。
釆用较小的 AIFS /CTmin/CTmax值, 会使 STA等待较短时间就开始竟争. 从而比与釆用较大值的 STA更容易获得信道接入。
在本发明的另一个实施例中, 在改进的分布信道接入方式中, 在提高 所述终端的帧优先级时, 所述方法还包括: 将所述帧的优先级等级设置为 更高; 在所述改进的分布信道接入方式中, 帧按照内容划分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级等级从低到高的顺序
排列为: 背景帧、 尽力传输帧、 视频帧、 语音帧。 例如: 所述将所述帧的 优先级等级设置为更高可以是将所述帧的优先级等级设置为语音帧。
在本发明的另一个实施例中, 在分布式协调功能接入方式或改进的分 布信道接入方式中, 在降低所述终端的帧优先级时, 所述设置竟争窗口或 仲裁帧间距包括: 增大所述最大竟争窗口、 所述最小竟争窗口或所述仲裁 帧间距。 更大 AIFS /CTmin/CTmax值会导致 STA需要等待更长时间接入。 从 而比与釆用较小值的 STA更不易获得信道接入。
在本发明的另一个实施例中, 在改进的分布信道接入方式中, 在降低 所述终端的帧优先级时, 所述方法还包括: 将所述帧的优先级等级设置为 更低; 在所述改进的分布信道接入方式中, 帧按照内容划分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级等级从低到高的顺序 排列为: 背景帧、 尽力传输帧、 视频帧、 语音帧。 例如: 所述将所述帧的 优先级等级设置为更高可以是将所述帧的优先级等级设置为背景帧。
在本发明的另一个实施例中, 如图 3所示, 图 3为本发明帧优先级的动 态调整方法又一个实施例流程图。 在所述根据确定的所述帧优先级的调整 方式, 设置竟争窗口或仲裁帧间距之后还包括: S105在预设的时间段内, 根据所述帧的调整方式, 所述终端发送的帧保持调整后的所述帧的优先级。
所述时间段由所述终端确定并告知所述接入点, 或者由所述接入点和 所述终端协商确定。
本发明实施例提供了一种帧优先级的动态调整装置。 如图 4所示, 为本 发明一个实施例帧优先级的动态调整装置结构图。 所述装置包括: 调整方 式确定模块 401 , 设置模块 403 ;
所述调整方式确定模块用于根据终端、 接入点的需求或者信道状况, 确定帧优先级的调整方式, 所述帧在所述终端和接入点之间发送, 所述接 入点对应的各终端被分成多个分组, 所述终端被划入所述多个分组中的某 个分组, 所述帧优先级事先确定;
所述设置模块用于根据确定的所述帧优先级的调整方式, 设置竟争窗 口或仲裁帧间距, 所述竟争窗口包括最大竟争窗口、 最小竟争窗口, 所述 竟争窗口表示在发送所述帧前启动计数器的计数值的取值上限, 所述最大 竟争窗口表示所述竟争窗口允许的最大值, 所述最小竟争窗口表示所述竟 争窗口的起始值, 所述仲裁帧间距表示信道空闲时间, 所述信道空闲时间 是在发送所述帧前启动计数器的条件。
所述调整方式确定模块 401具体用于 , 在需要提升属于特定分组的终端 的帧优先级时, 提高属于所述特定分组的终端的帧优先级, 或降低不属于 所述特定分组的终端的帧优先级; 在需要提升不属于特定分组的终端的帧 优先级时, 降低属于所述特定分组终端的帧优先级, 或提高不属于所述特 定分组终端的帧优先级。
所述调整方式确定模块 401还用于在所述根据终端、 接入点的需求或者 信道状况, 确定帧优先级的调整方式之后, 根据当前信道的繁忙程度、 所 述接入点的繁忙状况、 或者所述终端的接收状况, 批准或拒绝特殊需求终 端的帧优先级的提高或降低请求以确定所述特殊需求终端的帧优先级的调 整方式; 所述设置模块用于根据所述调整方式确定模块确定的所述特殊需 求终端的帧优先级的调整方式, 设置竟争窗口或仲裁帧间距。
在分布式协调功能接入方式或改进的分布信道接入方式中, 在提高所 述终端的帧优先级时, 所述设置模块 403用于: 减小所述最大竟争窗口、 所 述最小竟争窗口或所述仲裁帧间距。
在改进的分布信道接入方式中, 在提高所述终端的帧优先级时, 所述 设置模块 403还用于: 将所述帧的优先级等级设置为更高; 在所述改进的分 布信道接入方式中, 帧按照内容划分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级等级从低到高的顺序排列为: 背景帧、 尽力 传输帧、 视频帧、 语音帧。
在分布式协调功能接入方式或改进的分布信道接入方式中, 在降低所 述终端的帧优先级时, 所述设置模 403块用于: 增大所述最大竟争窗口、 所 述最小竟争窗口或所述仲裁帧间距。
在改进的分布信道接入方式中, 在降低所述终端的帧优先级时, 所述 设置模块 403还用于: 将所述帧的优先级等级设置为更低; 在所述改进的分 布信道接入方式中, 帧按照内容划分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级等级从低到高的顺序排列为: 背景帧、 尽力 传输帧、 视频帧、 语音帧。
如图 5所示, 图 5提供了本发明帧优先级的动态调整装置又一个实施例 的结构图。 所述装置还包括优先级保持模块 405, 所述优先级保持模块用于 在所述设置模块根据确定的所述帧优先级的调整方式, 设置竟争窗口或仲 裁帧间距之后, 在预设的时间段内, 根据所述帧的调整方式, 控制所述终 端发送的帧保持调整后的所述帧的优先级。
本发明实施例提供了一种网络接入点设备。 如图 6 , 图 6为本发明网络 接入点设备一个实施例的结构图。 所述设备包括: 包含权利要求 9至 16任一 项所述的帧优先级动态调整装置 601、 发送模块 603; 所述发送模块用于把 所述帧优先级动态调整装置设置的所述竟争窗口或所述仲裁帧间距发送给 终端。
如图 7所示, 图 7为本发明网络接入点设备又一个实施例的结构图。 所 述设备还包括下行帧设置模块 605 , 所述下行帧设置模块用于根据所述帧优 先级动态调整装置设置的所述竟争窗口或所述仲裁帧间距设置所述下行 帧, 所述下行帧由所述网络设备发送给所述终端。
本发明实施例提供了一种终端。 如图 8 , 图 8为本发明终端一个实施例 的结构图。 所述终端包括: 包含权利要求 9至 16任一项所述的帧优先级动态 调整装置 801、 上行帧设置模块 803 , 所述上行帧设置模块用于根据把所述
帧优先级动态调整装置设置的所述竟争窗口或所述仲裁帧间距设置所述上 行帧, 所述上行帧由所述终端发送给所述网络设备。
如图 9所示, 图 9为本发明终端又一个实施例的结构图。 所述终端还包 括发送模块 805; 所述发送模块用于把所述帧优先级动态调整装置设置的所 述竟争窗口或所述仲裁帧间距发送给网络接入点设备。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描 述进行分布于实施例的装置中, 也可以进行相应变化位于不同于本实施例 的一个或多个装置中。 上述实施例的模块可以合并为一个模块, 也可以进 一步拆分成多个子模块。
本领域的技术人员可以清楚地了解到本发明实施例中的技术可借助软 件加必需的通用硬件平台的方式来实现。 基于这样的理解, 本发明实施例 中的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的 形式体现出来, 该计算机软件产品可以存储在存储介质中, 如 R0M/RAM、 磁 碟、 光盘等, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例或者实施例的某些部分 所述的方法。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims
1. 一种帧优先级的动态调整方法, 其特征在于, 所述方法包括:
根据终端、 接入点的需求或者信道状况, 确定帧优先级的调整方式, 所 述帧在所述终端和接入点之间发送, 所述帧优先级事先确定; 根据确定的所述帧优先级的调整方式, 设置竟争窗口或仲裁帧间距, 所 述竟争窗口表示在发送所述帧前启动计数器的计数值的取值上限, 所述 仲裁帧间距表示信道空闲时间, 所述信道空闲时间是在发送所述帧前启 动计数器的条件。
2. 根据权利要求 1的方法, 其特征在于: 所述根据终端、 接入点的需求或 者信道状况, 确定帧优先级的调整方式包括: 根据终端的分组信息, 确 定帧优先级的调整方式, 所述接入点对应的各终端被分成多个分组, 所 述终端被划入所述多个分组中的某个分组; 在需要提升属于特定分组的 终端的帧优先级时, 提高属于所述特定分组的终端的帧优先级, 或降低 不属于所述特定分组的终端的帧优先级; 在需要提升不属于特定分组的 终端的帧优先级时, 降低属于所述特定分组终端的帧优先级, 或提高不 属于所述特定分组终端的帧优先级。
3. 根据权利要求 1或 2所述的方法, 其特征在于, 在所述根据终端、 接入点 的需求或者信道状况, 确定帧优先级的调整方式具体包括: 根据当前信 道的繁忙程度、 所述接入点的繁忙状况、 或者所述终端的接收状况, 批 准或拒绝特殊需求终端的帧优先级的提高或降低请求, 以确定所述特殊 需求终端的帧优先级的调整方式; 所述 4艮据确定的所述帧优先级的调整 方式, 设置竟争窗口或仲裁帧间距包括: 根据确定的所述特殊需求终端 的帧优先级的调整方式, 设置竟争窗口或仲裁帧间距。
4. 根据权利要求 1至 3任一项所述的方法, 其特征在于, 在分布式协调功能 接入方式或改进的分布信道接入方式中, 在提高所述终端的帧优先级 时, 所述设置竟争窗口或仲裁帧间距包括: 减小所述最大竟争窗口、 所 述最小竟争窗口或所述仲裁帧间距, 所述竟争窗口包括最大竟争窗口、 最小竟争窗口, 所述最大竟争窗口表示所述竟争窗口允许的最大值, 所 述最小竟争窗口表示所述竟争窗口的起始值。
5. 根据权利要求 4所述的方法, 其特征在于, 在改进的分布信道接入方式 中, 在提高所述终端的帧优先级时, 所述方法还包括: 将所述帧的优先 级等级设置为更高; 在所述改进的分布信道接入方式中, 帧按照内容划 分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级 等级从低到高的顺序排列为: 背景帧、 尽力传输帧、 视频帧、 语音帧。
6. 根据权利要求 1至 3任一项所述的方法, 其特征在于, 在分布式协调功能 接入方式或改进的分布信道接入方式中, 在降低所述终端的帧优先级 时, 所述设置竟争窗口或仲裁帧间距包括: 增大所述最大竟争窗口、 所 述最小竟争窗口或所述仲裁帧间距, 所述竟争窗口包括最大竟争窗口、 最小竟争窗口, 所述最大竟争窗口表示所述竟争窗口允许的最大值, 所 述最小竟争窗口表示所述竟争窗口的起始值。。
7. 根据权利要求 6所述的方法, 其特征在于, 在改进的分布信道接入方式 中, 在降低所述终端的帧优先级时, 所述方法还包括: 将所述帧的优先 级等级设置为更低; 在所述改进的分布信道接入方式中, 帧按照内容划 分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优先级 等级从低到高的顺序排列为: 背景帧、 尽力传输帧、 视频帧、 语音帧。
8. 根据权利要求 1至 7任一项所述的方法, 其特征在于, 在所述根据确定的 所述帧优先级的调整方式, 设置竟争窗口或仲裁帧间距之后还包括: 在 预设的时间段内, 根据所述帧的调整方式, 所述终端发送的帧保持调整 后的所述帧的优先级。
9. 一种帧优先级的动态调整装置, 其特征在于, 所述装置包括: 调整方式 确定模块, 设置模块;
所述调整方式确定模块用于根据终端、 接入点的需求或者信道状况, 确 定帧优先级的调整方式, 所述帧在所述终端和接入点之间发送, 所述帧 优先级事先确定;
所述设置模块用于根据确定的所述帧优先级的调整方式, 设置竟争窗口 或仲裁帧间距, 所述竟争窗口表示在发送所述帧前启动计数器的计数值 的取值上限, 所述仲裁帧间距表示信道空闲时间, 所述信道空闲时间是 在发送所述帧前启动计数器的条件。
根据权利要求 9的装置, 其特征在于, 所述调整方式确定模块具体用于, 根据终端的分组信息, 在需要提升属于特定分组的终端的帧优先级时, 提高属于所述特定分组的终端的帧优先级, 或降低不属于所述特定分组 的终端的帧优先级; 在需要提升不属于特定分组的终端的帧优先级时, 降低属于所述特定分组终端的帧优先级, 或提高不属于所述特定分组终 端的帧优先级, 所述接入点对应的各终端被分成多个分组, 所述终端被 划入所述多个分组中的某个分组。
根据权利要求 9或 10所述的装置, 其特征在于, 所述调整方式确定模块 还用于在所述根据终端、 接入点的需求或者信道状况, 确定帧优先级的 调整方式之后, 根据当前信道的繁忙程度、 所述接入点的繁忙状况、 或 者所述终端的接收状况, 批准或拒绝特殊需求终端的帧优先级的提高或 降低请求以确定所述特殊需求终端的帧优先级的调整方式; 所述设置模 块用于根据所述调整方式确定模块确定的所述特殊需求终端的帧优先 级的调整方式, 设置竟争窗口或仲裁帧间距。
根据权利要求 9至 11任一项所述的装置, 其特征在于, 在分布式协调功 能接入方式或改进的分布信道接入方式中, 在提高所述终端的帧优先级 时, 所述设置模块用于: 减小所述最大竟争窗口、 所述最小竟争窗口或 所述仲裁帧间距, 所述竟争窗口包括最大竟争窗口、 最小竟争窗口, 所 述最大竟争窗口表示所述竟争窗口允许的最大值, 所述最小竟争窗口表 示所述竟争窗口的起始值。。 根据权利要求 12所述的装置, 其特征在于, 在改进的分布信道接入方式 中, 在提高所述终端的帧优先级时, 所述设置模块还用于: 将所述帧的 优先级等级设置为更高; 在所述改进的分布信道接入方式中, 帧按照内 容划分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优 先级等级从低到高的顺序排列为: 背景帧、 尽力传输帧、 视频帧、 语音 帧。
根据权利要求 9至 11任一项所述的装置, 其特征在于, 在分布式协调功 能接入方式或改进的分布信道接入方式中, 在降低所述终端的帧优先级 时, 所述设置模块用于: 增大所述最大竟争窗口、 所述最小竟争窗口或 所述仲裁帧间距, 所述竟争窗口包括最大竟争窗口、 最小竟争窗口, 所 述最大竟争窗口表示所述竟争窗口允许的最大值, 所述最小竟争窗口表 示所述竟争窗口的起始值。。
根据权利要求 14所述的装置, 其特征在于, 在改进的分布信道接入方式 中, 在降低所述终端的帧优先级时, 所述设置模块还用于: 将所述帧的 优先级等级设置为更低; 在所述改进的分布信道接入方式中, 帧按照内 容划分包括: 背景帧、 尽力传输帧、 视频帧、 语音帧, 所述帧按照帧优 先级等级从低到高的顺序排列为: 背景帧、 尽力传输帧、 视频帧、 语音 帧。
根据权利要求 9至 15任一项所述的装置, 其特征在于, 所述装置还包括 优先级保持模块, 所述优先级保持模块用于在所述设置模块根据确定的 所述帧优先级的调整方式, 设置竟争窗口或仲裁帧间距之后, 在预设的 时间段内, 根据所述帧的调整方式, 控制所述终端发送的帧保持调整后 的所述帧的优先级。
—种网络接入点设备, 其特征在于, 所述设备包括: 包含权利要求 9至 16任一项所述的帧优先级动态调整装置、 发送模块; 所述发送模块用于 把所述帧优先级动态调整装置设置的所述竟争窗口或所述仲裁帧间距 发送给终端。
根据权利要求 17所述的设备, 其特征在于, 所述设备还包括下行帧设置 模块, 所述下行帧设置模块用于根据所述帧优先级动态调整装置设置的 所述竟争窗口或所述仲裁帧间距设置所述下行帧, 所述下行帧由所述网 络设备发送给所述终端。
一种终端, 其特征在于, 所述终端包括: 包含权利要求 9至 16任一项所 述的帧优先级动态调整装置、 上行帧设置模块, 所述上行帧设置模块用 于根据所述帧优先级动态调整装置设置的所述竟争窗口或所述仲裁帧 间距设置所述上行帧, 所述上行帧由所述终端发送给所述网络设备。 根据权利要求 19所述的终端, 其特征在于, 所述终端还包括发送模块; 所述发送模块用于把所述帧优先级动态调整装置设置的所述竟争窗口 或所述仲裁帧间距发送给网络接入点设备。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210132625.4 | 2012-04-28 | ||
CN201210132625.4A CN103379554B (zh) | 2012-04-28 | 2012-04-28 | 一种帧优先级的动态调整的方法和装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013159629A1 true WO2013159629A1 (zh) | 2013-10-31 |
Family
ID=49463996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/073386 WO2013159629A1 (zh) | 2012-04-28 | 2013-03-28 | 一种帧优先级的动态调整的方法和装置 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN103379554B (zh) |
WO (1) | WO2013159629A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108141882B (zh) * | 2015-08-17 | 2021-08-03 | 瑞典爱立信有限公司 | 基于竞争的系统中的具有不同优先级的数据流和竞争窗口参数的调整 |
CN115765953A (zh) * | 2016-09-07 | 2023-03-07 | 韦勒斯标准与技术协会公司 | 无线通信方法和使用其的无线通信终端 |
CN116684983A (zh) | 2016-09-23 | 2023-09-01 | 韦勒斯标准与技术协会公司 | 用于多用户edca操作的无线通信终端和无线通信方法 |
CN111970765B (zh) * | 2020-08-10 | 2022-05-31 | 杭州电子科技大学 | 一种大规模终端接入方法及系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080095124A1 (en) * | 2004-10-28 | 2008-04-24 | The Regents Of The University Of California | Dynamic Adaptation for Wireless Communications with Enhanced Quality of Service |
CN101415242A (zh) * | 2007-10-16 | 2009-04-22 | 中兴通讯股份有限公司 | 一种宽带无线接入的非实时业务的调度系统及方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101098173A (zh) * | 2006-06-30 | 2008-01-02 | 华为技术有限公司 | 动态调整无线网络中传输的业务服务质量的方法 |
CN101730149A (zh) * | 2009-11-26 | 2010-06-09 | 福建星网锐捷网络有限公司 | 业务流处理方法和装置及接入点 |
CN102075984B (zh) * | 2010-12-31 | 2013-06-12 | 北京邮电大学 | 用于无线局域网的优化视频业务传输的系统和方法 |
-
2012
- 2012-04-28 CN CN201210132625.4A patent/CN103379554B/zh not_active Expired - Fee Related
-
2013
- 2013-03-28 WO PCT/CN2013/073386 patent/WO2013159629A1/zh active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080095124A1 (en) * | 2004-10-28 | 2008-04-24 | The Regents Of The University Of California | Dynamic Adaptation for Wireless Communications with Enhanced Quality of Service |
CN101415242A (zh) * | 2007-10-16 | 2009-04-22 | 中兴通讯股份有限公司 | 一种宽带无线接入的非实时业务的调度系统及方法 |
Non-Patent Citations (1)
Title |
---|
ZHU, YING ET AL.: "A Multi-Priority Algorithm with RTS Multi-Reservation and Contention Window Self-Adaptive Adjusting in WLAN", JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, vol. 32, no. 2, April 2009 (2009-04-01), pages 93 - 96 * |
Also Published As
Publication number | Publication date |
---|---|
CN103379554A (zh) | 2013-10-30 |
CN103379554B (zh) | 2017-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10674539B2 (en) | System and method for managing contention in a wireless communications system | |
CN109246806B (zh) | 在WiFi网络中提供差异化关联服务的系统和方法 | |
Ali et al. | Performance evaluation of heterogeneous IoT nodes with differentiated QoS in IEEE 802.11 ah RAW mechanism | |
EP3609286B1 (en) | Communication using distributed channel access parameters | |
CN103369597B (zh) | 无线帧的发送方法及装置 | |
KR101354130B1 (ko) | 무선랜 프레임 송수신 방법 | |
EP2955882B1 (en) | Methods and system for transmitting data in wireless local area network | |
CN106982467B (zh) | 一种基于动态分配prach资源的接入拥塞控制方法 | |
US9750057B2 (en) | Contention control mechanism | |
KR20140116909A (ko) | 분산 채널 액세스 파라미터들을 이용하는 통신 | |
Wang et al. | Energy-aware adaptive restricted access window for IEEE 802.11 ah based smart grid networks | |
KR20180030024A (ko) | 과도한 송신 기회 시간을 보상 | |
CN102421151A (zh) | 基于wlan竞争站点数目的最小竞争窗口自适应调整方法 | |
WO2013159629A1 (zh) | 一种帧优先级的动态调整的方法和装置 | |
JP2017507600A (ja) | 過剰送信機会時間のための補償手順 | |
EP3316631B1 (en) | Method and device for competitive transmission | |
CN103731875B (zh) | 一种自适应调整寻呼发送次数的方法及系统 | |
WO2021253298A1 (zh) | 直连通信方法、装置及存储介质 | |
WO2024021860A1 (zh) | 数据传输方法及其装置、存储介质、程序产品 | |
US10390304B2 (en) | Sleep during NAV/RID backoff | |
WO2016138861A1 (zh) | 一种信道检测方法和装置 | |
Santi et al. | Evaluation of the Co-existence of RAW and TWT Stations in IEEE 802.11 ah using ns-3 | |
CN108811051B (zh) | 无线局域网的通信方法、通信装置和通信设备 | |
Wu et al. | An energy-efficient MAC protocol with downlink traffic scheduling strategy in IEEE 802.11 infrastructure WLANs | |
EP3562219B1 (en) | Channel contention method and wur station |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13781249 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13781249 Country of ref document: EP Kind code of ref document: A1 |