WO2023050160A1 - 信道接入参数的更新方法、装置、设备及存储介质 - Google Patents

信道接入参数的更新方法、装置、设备及存储介质 Download PDF

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WO2023050160A1
WO2023050160A1 PCT/CN2021/121733 CN2021121733W WO2023050160A1 WO 2023050160 A1 WO2023050160 A1 WO 2023050160A1 CN 2021121733 W CN2021121733 W CN 2021121733W WO 2023050160 A1 WO2023050160 A1 WO 2023050160A1
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Prior art keywords
channel access
channel
access
nsep
parameter
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PCT/CN2021/121733
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English (en)
French (fr)
Inventor
徐彦超
余庆华
王泷
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Oppo广东移动通信有限公司
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Priority to CN202180099072.4A priority Critical patent/CN117441405A/zh
Priority to PCT/CN2021/121733 priority patent/WO2023050160A1/zh
Publication of WO2023050160A1 publication Critical patent/WO2023050160A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular to a method, device, device, and storage medium for updating channel access parameters.
  • the two devices can negotiate with each other to enable the NSEP priority access function between the two devices.
  • Embodiments of the present application provide a method, device, device, and storage medium for updating channel access parameters. Described technical scheme is as follows:
  • the first channel access parameter is updated to the second channel access parameter.
  • a device for updating channel access parameters includes: a parameter updating module;
  • a computer-readable storage medium is provided, and a computer program is stored in the storage medium, and the computer program is used for execution by a processor, so as to implement the above method for updating channel access parameters.
  • a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the above method for updating channel access parameters.
  • FIG. 2 is a schematic diagram of a function of enabling NSEP priority access provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a channel access process provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of a method for updating channel access parameters provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a channel access process provided by an embodiment of the present application.
  • FIG. 8 is a flowchart of a method for updating channel access parameters provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a channel access process provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a channel access process provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a channel access process provided by an embodiment of the present application.
  • FIG. 14 is a block diagram of an apparatus for updating channel access parameters provided by an embodiment of the present application.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
  • FIG. 1 shows a block diagram of a wireless local area network provided by an exemplary embodiment of the present application.
  • the wireless local area network may include: a station device 10 and an access point device 20 .
  • the station device 10 may be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • a wireless communication chip for example, mobile phones supporting wireless fidelity (Wireless Fidelity, WiFi) communication functions, tablet computers supporting WiFi communication functions, set-top boxes supporting WiFi communication functions, smart TVs supporting WiFi communication functions, smart wearable devices supporting WiFi communication functions, A vehicle communication device supporting the WiFi communication function and a computer supporting the WiFi communication function.
  • wireless fidelity Wireless Fidelity, WiFi
  • WiFi Wireless Fidelity
  • tablet computers supporting WiFi communication functions
  • set-top boxes supporting WiFi communication functions
  • smart TVs supporting WiFi communication functions
  • smart wearable devices supporting WiFi communication functions
  • a vehicle communication device supporting the WiFi communication function and a computer supporting the WiFi communication function.
  • the access point device 20 can be an access point for mobile users to enter the wired network, and is mainly deployed in homes, buildings, and campuses, with a typical coverage radius of tens of meters to hundreds of meters. Of course, it can also be deployed outdoors.
  • the access point device 20 is equivalent to a bridge connecting the wired network and the wireless network, and its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the access point device 20 may be a terminal device or a network device with a WiFi chip.
  • both the station device 10 and the access point device 20 support the 802.11 standard. It can be understood that the station device 10 and the access point device 20 in the embodiment of the present application may also support the evolution standard of the 802.11 standard, and may also support other communication standards. For example, it supports 802.11be and subsequent versions.
  • a multi-link is established between the station device 10 and the access point device 20, that is, the station device 10 is a station (Station, STA) multi-link device (Multi-Link Device, MLD ), the station device 10 includes one or more logical entities STA, the access point device 20 is an access point (Access Point, AP) MLD, and the access point device 20 includes one or more logical entities AP.
  • the station device 10 is a station (Station, STA) multi-link device (Multi-Link Device, MLD )
  • the station device 10 includes one or more logical entities STA
  • the access point device 20 is an access point (Access Point, AP) MLD
  • the access point device 20 includes one or more logical entities AP.
  • a link 1 and a link 2 exist between the station device 10 and the access point device 20, the station device 10 includes: STA1 and STA2, the access point device 20 includes: AP1 and AP2, STA1 and STA2 are connected to AP1 respectively Perform data transmission with AP2, that is, AP1 and AP2 are peer logical entities of STA1 and STA2 respectively, and their corresponding links are link 1 and link 2 respectively.
  • Wi-Fi Wireless Fidelity
  • NSEP users such as senior government officials, emergency management organization personnel, and individuals supporting critical infrastructure and mission needs.
  • Governments in some countries have implemented schemes that provide NSEP users with priority access to public cellular and wireline network resources to ensure that NSEP users can succeed even when the network is overloaded due to unexpected events such as emergencies that cause overloading communication.
  • Wireless Fidelity (Wi-Fi) networks are widely used by service providers as a major wireless technology. In certain emergency situations, the Wi-Fi network is the best or only network available for NSEP users to conduct critical communications. NSEP users may share Wi-Fi networks with other non-NSEP users. Therefore, it is necessary to ensure that when the Wi-Fi network is congested, the Wi-Fi network can prioritize the traffic of NSEP users, so as to improve the possibility of successful communication of NSEP users.
  • Multiple Links functions that can support multiple links.
  • STAMLD single links
  • APMLD APMLD
  • the STA MLD and AP MLD that have established multi-links can take advantage of multi-links to send and receive data on multiple links to achieve high throughput/low latency and other advantages.
  • NSEP priority access a function that can support NSEP is defined, which is called NSEP priority access.
  • MLD1 sends an NSEP Priority Access Enable Request frame (NSEP Priority Access Enable Request frame) to MLD2.
  • NSD Priority Access Enable Request frame NSEP Priority Access Enable Request frame
  • MLD2 will send an NSEP Priority Access Enable Response frame (NSEP Priority Access Enable Response frame) to MLD1, and carry it in this frame to indicate that NSEP priority access is enabled successfully field.
  • MLD1 and MLD2 can use NSEP priority access rules to handle data transmission between the two MLDs.
  • NSEP Priority Access Teardown frame NSTEP Priority Access Teardown frame
  • the NSEP priority access rule cannot be used between MLD1 and MLD2 to process data transmission between the two MLDs.
  • EDCA parameters specify corresponding channel access parameters according to different Quality of service (QoS) priorities, these parameters include Arbitration Inter Frame Space (AIFS), CWmin (minimum contention window), CWmax (maximum contention window), etc. These parameters determine the EDCA channel backoff access procedure of a device.
  • QoS Quality of service
  • AIFS Arbitration Inter Frame Space
  • CWmin minimum contention window
  • CWmax maximum contention window
  • a CW min ⁇ CWmax,2 ⁇ Retry_Count x(CWmin+1)-1 ⁇ is obtained.
  • a device starts an EDCA channel backoff access process, if it detects that the channel is busy during the AIFS channel detection stage, it needs to continue to maintain the current EDCA channel backoff access process in the AIFS stage; if it checks during the channel backoff detection stage When the channel is busy, you need to keep the current backoffcount, and re-enter the AIFS channel detection stage for channel detection, and when the channel is checked to be idle during the AIFS channel detection stage, restart from the last backoff count and back off the channel In the detection phase, channel detection is performed. As shown in Figure 4, when the STA starts the first EDCA channel backoff access process, if it detects that the channel is busy during this process, the current EDCA channel backoff access process will still be maintained. Only when the current EDCA channel backoff access process is over, will a new EDCA channel backoff access process be started when the STA wants to access the channel next time.
  • FIG. 5 shows a flowchart of a method for updating channel access parameters provided by an embodiment of the present application.
  • the method can be applied to any device serving as a sending end in the wireless local area network shown in FIG. 1 , and the device is a station device or an access point device.
  • the method may include the steps of:
  • NSEP priority access refers to the function of guaranteeing priority access to communication resources. Between two devices, you can enable NSEP priority access to ensure priority access to communication resources; you can also disable NSEP priority access to restore normal access to communication resources. The manner of enabling and disabling the NSEP priority access can be combined with reference to the description in FIG. 2 , and will not be repeated here.
  • the change of enabling NSEP priority access includes: enabling NSEP priority access, the first channel access parameters include: disabling the channel access parameters corresponding to NSEP priority access, the second The second channel access parameters include: enable the channel access parameters corresponding to NSEP priority access; or, the change of enabling the NSEP priority access includes: disabling the NSEP priority access, and the first channel access parameters include: enable The channel access parameters corresponding to the NSEP priority access are enabled, and the second channel access parameters include: the channel access parameters corresponding to the non-enabled NSEP priority access.
  • the channel access process is an EDCA channel back-off access process, in the case of enabling NSEP priority access, the common (legacy) EDCA parameters are updated to NSEP EDCA parameters, and the NSEP EDCA parameters are used to access the channel; In the case of disabling NSEP priority access, update the NSEP EDCA parameters to common EDCA parameters, and use common EDCA parameters to access the channel.
  • the access point device broadcasts the channel access parameters corresponding to the non-enabled NSEP priority access in the wireless local area network, and all station devices connected to this access point device use this set of channels Access parameters for related channel access.
  • the channel access parameters corresponding to enabling NSEP preferential access are indicated during the negotiation process of NSEP enabling.
  • the NSEP priority access request frame carries channel access parameters corresponding to enabling NSEP priority access, that is, NSEP channel access parameters, for these two devices to access It is used during the enabling period, so it has a higher priority for the transmission of the two devices.
  • the channel access parameters include at least one of the following: AIFS, CWmin and CWmax.
  • AIFS a configurable resource unit
  • CWmin a configurable resource unit
  • CWmax a configurable resource unit
  • the channel access parameter corresponding to NSEP priority access is enabled, compared with the general channel access parameter corresponding to non-enabled NSEP priority access, has a smaller AIFS, and/or has a smaller CWmin, CWmax.
  • the device after updating the first channel access parameter to the second channel access parameter, the device subsequently uses the second channel access parameter to perform channel access, and, in the case of successful channel access Next, send data.
  • the method for updating channel access parameters updates the first channel access parameters to the second channel access parameters when the enablement of NSEP priority access is changed, so that the device Channel access may be performed based on the updated second channel access parameters, so as to adapt to the current enablement of NSEP priority access.
  • Solution 2 When the enablement of NSEP priority access is changed and the channel access process is in progress, keep the count value of the channel access process unchanged, and update the first channel access parameter during the channel access process Access parameters for the second channel.
  • FIG. 8 shows a flowchart of a method for updating channel access parameters provided by an embodiment of the present application.
  • the method can be applied to any device serving as a sending end in the wireless local area network shown in FIG. 1 , and the device is a station device or an access point device.
  • the method may include the steps of:
  • the device next time the device triggers a new channel access process according to the normal logic for the initial transmission or retransmission of data, it will update the channel access parameters in the new channel access process to the second channel access parameters ; Or, the device actively triggers a new channel access process, and updates the channel access parameters in the new channel access process to the second channel access parameters.
  • the device when the device enables NSEP priority access, on a certain AC, no matter whether there is a channel access process currently in progress, it will be in the next channel access process triggered by normal logic or actively triggered , update to enable the channel access parameters corresponding to NSEP priority access, so as to set the channel access parameters.
  • the channel access process when the device disables NSEP priority access, on a certain AC, no matter whether there is a channel access process currently in progress, the channel access process will be triggered according to the normal logic or actively triggered next time. , update the channel access parameters corresponding to the non-enabled NSEP priority access, so as to set the channel access parameters.
  • the channel access process triggered next time refers to the channel access process triggered next time after the time point when the enabling condition of NSEP priority access is changed.
  • the channel access process is in progress, and the channel access process triggered next time is after the current channel access process is completed, the next time Triggered channel access procedure.
  • the count value of the ongoing channel access process and the first channel access parameter remain unchanged.
  • the count value includes at least one of the following: a backoff count value (backoff count), and a retransmission count value (Retry_Count).
  • a device when a device disables NSEP priority access, if there is a corresponding channel access process using channel access parameters corresponding to enabling NSEP priority access on an AC, the device needs to wait This channel access process is completed, and do not change the backoff count, Retry_Count, AIFS and other parameters in this channel access process, and when starting a new channel access process on this AC next time, use non-enabled NSEP priority Access the corresponding channel access parameters to set the corresponding channel access parameters in the channel access process, including AIFS, CWmin, CWmax, etc.
  • the device will wait until the first EDCA channel back-off access process that is currently in progress is over, and then start a new EDCA channel back-off access process, then use NSEP EDCA parameters to set related channel access parameters, and in When the new EDCA channel backoff access process is triggered, use the Retry Count corresponding to the first EDCA channel backoff access process.
  • the device will wait until the first EDCA channel back-off access process that is currently in progress is over, and then start a new EDCA channel back-off access process, then use NSEP EDCA parameters to set related channel parameters, and trigger the start During this new EDCA channel backoff access process, use the Retry Count corresponding to the first EDCA channel backoff access process.
  • the next triggered The channel access process is the channel access process triggered next time after the time point when the enablement of NSEP priority access is changed.
  • the device when the device enables NSEP priority access, if there is no corresponding channel access process using channel access parameters corresponding to non-enabled NSEP priority access on a certain AC, the next time this AC When starting a new channel access process on the Internet, use the channel access parameters corresponding to enabling NSEP priority access to set the channel access parameters in the corresponding channel access process, including AIFS, CWmin, CWmax, etc. And before the device disables NSEP priority access, it always uses the channel access parameters corresponding to enabling NSEP priority access to perform the corresponding channel access process.
  • the method provided by this embodiment updates the first channel access parameter to the second channel access parameter in the next triggered channel access process when the enabling status of NSEP priority access changes.
  • Parameters improve the update mechanism of channel access parameters, help the device to quickly and correctly switch between the first channel access parameters and the second channel access parameters, and improve the utilization rate of the air interface.
  • step 1202 updating the first channel access parameter to the second channel access parameter during the channel access process includes: in the channel backoff detection phase of the channel access process, updating the first channel access parameter to The first channel access parameter is updated to the second channel access parameter.
  • the channel access process includes at least one of the following phases: AIFS channel detection phase, channel backoff detection phase and channel busy state phase.
  • AIFS channel detection stage refers to the stage of detecting the channel in the IFS
  • the channel backoff detection stage refers to the stage of detecting the channel in the backoff time slot
  • the channel busy state stage refers to the stage of detecting that the channel is busy.
  • the device in the channel back-off detection phase of the channel access process, the device enables/disables NSEP priority access, then the device directly sets the first channel access parameter Update to the second channel access parameters.
  • the device if the device enables/disables NSEP priority access in other stages of the channel access process, the device needs to wait until the next channel backoff detection stage in the channel access process, and The first channel access parameter is updated to the second channel access parameter.
  • the channel access process triggered by this AC will also use non-enabled NSEP Prioritize access to the corresponding channel access parameters to set the corresponding channel access parameters.
  • the method provided by this embodiment keeps the count value of the channel access process unchanged when the enablement of NSEP priority access changes and the channel access process is in progress
  • the first channel access parameters are updated to the second channel access parameters, which improves the update mechanism of channel access parameters and helps the device to quickly make correct changes between the first channel access parameters and the second channel access parameters.
  • Ground switching improves air interface utilization.
  • FIG. 14 shows a block diagram of an apparatus for updating channel access parameters provided by an embodiment of the present application.
  • the device has the function of realizing the above method example, and the function may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the apparatus may be the station device described above, or be set in the station device; it may be the access point device described above, or be set in the access point device.
  • the device 1400 may include: a parameter updating module 1410;
  • the parameter update module 1410 is configured to update the first channel access parameter to the second channel access parameter when the enablement of NSEP priority access is changed.
  • the parameter updating module 1410 is configured to update the first channel access parameter to the second channel access parameter in the next triggered channel access process.
  • the next triggered channel access process is a channel access process triggered by attempting to access a channel for data transmission
  • the channel access process triggered next time is a channel access process triggered by attempting to update channel access parameters.
  • the parameter update module 1410 is configured to update the first channel access parameter to the second channel access parameter in the channel backoff detection phase of the channel access process .
  • the count value includes at least one of the following:
  • the change of enabling the NSEP priority access includes: enabling the NSEP priority access, and the first channel access parameter includes: disabling the NSEP priority access
  • the second channel access parameters include: enabling the NSEP to preferentially access the corresponding channel access parameters
  • the change of enabling the NSEP priority access includes: disabling the NSEP priority access, and the first channel access parameter includes: enabling the channel access parameter corresponding to the NSEP priority access, the The second channel access parameters include: disabling channel access parameters corresponding to the NSEP preferential access.
  • the channel access parameters include at least one of the following: AIFS, CWmin and CWmax.
  • the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • FIG. 15 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device may be a station device or an access point device.
  • the communication device may include: a processor 1501 , a receiver 1502 , a transmitter 1503 , a memory 1504 and a bus 1505 .
  • the processor 1501 includes one or more processing cores, and the processor 1501 executes various functional applications by running software programs and modules.
  • the receiver 1502 and the transmitter 1503 can be implemented as a transceiver 1506, and the transceiver 1506 can be a communication chip.
  • the memory 1504 is connected to the processor 1501 through the bus 1505 .
  • the memory 1504 may be used to store a computer program, and the processor 1501 is used to execute the computer program, so as to implement various steps performed by the terminal device in the foregoing method embodiments.
  • the memory 1504 can be implemented by any type of volatile or non-volatile storage device or their combination, and the volatile or non-volatile storage device includes but not limited to: random-access memory (Random-Access Memory, RAM) And read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technologies, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.
  • RAM Random-Access Memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • EPROM erasable programmable Read-Only Memory
  • EEPROM Electrically erasable programmable read-only memory
  • the processor 1501 is configured to update the first channel access parameter to the second channel access parameter when the enablement of NSEP priority access is changed.
  • the processor 1501 is configured to update the first channel access parameter to the second channel access parameter during the next triggered channel access process.
  • the next triggered channel access process is a channel access process triggered by attempting to access a channel for data transmission
  • the channel access process triggered next time is a channel access process triggered by attempting to update channel access parameters.
  • the processor 1501 is configured to keep the count value of the channel access process and the first channel access parameter unchanged when the channel access process is in progress.
  • the processor 1501 is configured to keep the count value of the channel access process unchanged when the channel access process is in progress, and the channel access process will The first channel access parameter is updated to the second channel access parameter.
  • the processor 1501 is configured to update the first channel access parameter to the second channel access parameter in the channel backoff detection phase of the channel access process.
  • the count value includes at least one of the following:
  • the change of enabling the NSEP priority access includes: enabling the NSEP priority access, and the first channel access parameter includes: disabling the NSEP priority access
  • the second channel access parameters include: enabling the NSEP to preferentially access the corresponding channel access parameters
  • the change of enabling the NSEP priority access includes: disabling the NSEP priority access, and the first channel access parameter includes: enabling the channel access parameter corresponding to the NSEP priority access, the The second channel access parameters include: disabling channel access parameters corresponding to the NSEP preferential access.
  • the channel access parameters include at least one of the following: AIFS, CWmin and CWmax.
  • the embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor, so as to implement the above method for updating channel access parameters.
  • the computer-readable storage medium may include: a read-only memory (Read-Only Memory, ROM), a random-access memory (Random-Access Memory, RAM), a solid-state hard drive (Solid State Drives, SSD) or an optical disc.
  • the random access memory may include resistive random access memory (Resistance Random Access Memory, ReRAM) and dynamic random access memory (Dynamic Random Access Memory, DRAM).
  • the embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the above method for updating channel access parameters.
  • the embodiment of the present application also provides a computer program product or computer program, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads from the computer-readable storage medium The medium reads and executes the computer instructions, so as to implement the above method for updating channel access parameters.
  • the processor in this embodiment of the present application includes: an application specific integrated circuit (Application Specific Integrated Circuit, ASIC).
  • ASIC Application Specific Integrated Circuit
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • the "plurality” mentioned herein means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an "or” relationship.
  • the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps.
  • the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers
  • the steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

本申请公开了一种信道接入参数的更新方法、装置、设备及存储介质,涉及通信技术领域。所述方法由站点设备或接入点设备执行,所述方法包括:在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。本申请实施例提供的技术方案,使得设备可以基于更新后的第二信道接入参数进行信道接入,以适应当前的NSEP优先接入的使能情况。

Description

信道接入参数的更新方法、装置、设备及存储介质 技术领域
本申请实施例涉及通信技术领域,特别涉及一种信道接入参数的更新方法、装置、设备及存储介质。
背景技术
在无线局域网的标准中,定义了可以支持国家安全和应急准备(National Security and Emergency Preparedness,NSEP)的功能,称为NSEP优先接入(NSEP priority access),NSEP优先接入指的是保障对通信资源的优先接入的功能。
当站点设备和接入点设备都支持NSEP优先接入时,两个设备可以通过相互协商,在两个设备间使能NSEP优先接入的功能。
发明内容
本申请实施例提供了一种信道接入参数的更新方法、装置、设备及存储介质。所述技术方案如下:
根据本申请实施例的一个方面,提供了一种信道接入参数的更新方法,所述方法由站点设备或接入点设备执行,所述方法包括:
在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
根据本申请实施例的一个方面,提供了一种信道接入参数的更新装置,所述装置包括:参数更新模块;
所述参数更新模块,用于在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
根据本申请实施例的一个方面,提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序用于处理器执行,以实现上述信道接入参数的更新方法。
根据本申请实施例的一个方面,提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现上述信道接入参数的更新 方法。
根据本申请实施例的一个方面,提供了一种计算机程序产品或计算机程序,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现上述信道接入参数的更新方法。
本申请实施例提供的技术方案可以带来如下有益效果:
在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数,使得设备可以基于更新后的第二信道接入参数进行信道接入,以适应当前的NSEP优先接入的使能情况。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,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是本申请一个实施例提供的无线局域网的示意图;
图2是本申请一个实施例提供的使能NSEP优先接入的功能的示意图;
图3是本申请一个实施例提供的进行信道接入过程的示意图;
图4是本申请一个实施例提供的进行信道接入过程的示意图;
图5是本申请一个实施例提供的信道接入参数的更新方法的流程图;
图6是本申请一个实施例提供的进行信道接入过程的示意图;
图7是本申请一个实施例提供的进行信道接入过程的示意图;
图8是本申请一个实施例提供的信道接入参数的更新方法的流程图;
图9是本申请一个实施例提供的进行信道接入过程的示意图;
图10是本申请一个实施例提供的进行信道接入过程的示意图;
图11是本申请一个实施例提供的进行信道接入过程的示意图;
图12是本申请一个实施例提供的信道接入参数的更新方法的流程图;
图13是本申请一个实施例提供的进行信道接入过程的示意图;
图14是本申请一个实施例提供的信道接入参数的更新装置的框图;
图15是本申请一个实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案,并不构成对本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
请参考图1,其示出了本申请一个示例性实施例提供的无线局域网的框图,该无线局域网可以包括:站点设备10和接入点设备20。
站点设备10可以为无线通讯芯片、无线传感器或无线通信终端。例如支持无线保真(Wireless Fidelity,WiFi)通讯功能的移动电话、支持WiFi通讯功能的平板电脑、支持WiFi通讯功能的机顶盒、支持WiFi通讯功能的智能电视、支持WiFi通讯功能的智能可穿戴设备、支持WiFi通讯功能的车载通信设备和支持WiFi通讯功能的计算机。
接入点设备20可以为移动用户进入有线网络的接入点,主要部署于家庭、大楼内部以及园区内部,典型覆盖半径为几十米至上百米,当然,也可以部署于户外。接入点设备20相当于一个连接有线网和无线网的桥梁,主要作用是将各个无线网络客户端连接到一起,然后将无线网络接入以太网。具体的,接入点设备20可以是带有WiFi芯片的终端设备或者网络设备。
在本申请实施例中,站点设备10和接入点设备20均支持802.11标准。可以理解的是,本申请实施例中的站点设备10和接入点设备20也可以支持802.11标准的演进标准,也可以支持其他通信标准。例如,支持802.11be等以及后续版本。
在本申请一种实施例中,站点设备10和接入点设备20之间建立了多链路,也即,站点设备10为站点(Station,STA)多链路设备(Multi-Link Device,MLD),站点设备10中包含一个或多个逻辑实体STA,接入点设备20为接入点(Access Point,AP)MLD,接入点设备20中包含一个或多个逻辑实体AP。
示例性的,站点设备10和接入点设备20之间存在链路1和链路2,站点设备10包括:STA1和STA2,接入点设备20包括:AP1和AP2,STA1和STA2分别与AP1和AP2进行数据传输,即AP1和AP2分别是STA1和STA2的对等逻辑实体,其对应的链路分别为链路1和链路2。
在介绍本申请技术方案之前,先对本申请涉及的一些技术知识进行介绍说明。
1)NSEP优先接入
对于负责NSEP的人员,即,NSEP用户,如高级政府官员、应急管理组织人员以及支持关键基础设施和任务需求的个人,通信是一项至关重要的能力。一些国家的政府实施了一些方案,提供NSEP用户对公共蜂窝网络和有线网络资源的优先接入,以确保NSEP用户即使在网络因突发事件(如造成过载的紧急情况)而过载时也能成功通信。无线保真(Wireless Fidelity,Wi-Fi)网络作为一种主要的无线技术被服务提供商广泛使用。在某些紧急情况下,Wi-Fi网络是NSEP用户进行关键通信的最佳或唯一可用网络。NSEP用户可能与其他非NSEP用户共享Wi-Fi网络。因此,需要确保在Wi-Fi网络拥塞时,Wi-Fi网络能够对NSEP用户的流量进行优先排序,以提高NSEP用户通信成功的可能性。
在相关标准中,定义了可以支持多链路(Multiple Links)的功能。按照标准中对于通信两端的定义,一个是STAMLD,一个是APMLD。相互建立了多链路的STA MLD和AP MLD可以利用多链路的优势,在多个链路上进行数据收发,以达到高吞吐/低时延等优势。
在相关标准中,定义了可以支持NSEP的功能,称为NSEP优先接入。当AP MLD和STA MLD都支持NSEP优先接入时,两个设备可以通过相互协商,在两个MLD设备间使能NSEP优先接入的功能,如图2所示:在支持NSEP优先接入的MLD1和MLD2两个MLD设备间,在MLD1向MLD2发送NSEP优先接入使能请求帧(NSEP Priority Access Enable Request frame)。如果MLD2允许与MLD1间使能NSEP优先接入,则MLD2会向MLD1发送NSEP优先接入使能响应帧(NSEP Priority Access Enable Response frame),并在这个帧里携带表示NSEP优先接入使能成功的字段。之后,MLD1和MLD2之间就可以使用NSEP优先接入规则,来处理两个MLD间的数据传输。当两个MLD设备中,有一个发送了NSEP优先接入拆除帧(NSEP Priority Access Teardown frame),则在MLD1和MLD2间是不可以使用NSEP优先接入规则处理两个MLD间的数据传输。
2)增强分布式信道接入(Enhanced Distributed Channel Access,EDCA)参数
在相关标准中,EDCA参数是按照不同服务质量(Quality of service,QoS) 优先级指定了对应的信道接入参数,这些参数包括仲裁帧间间隔(Arbitration Inter Frame Space,AIFS),CWmin(最小竞争窗口),CWmax(最大竞争窗口)等。这些参数决定了一个设备的EDCA信道退避接入过程。
如图3所示,根据所需要发送的帧的类型和/或访问类别(Access Categories,AC),为传输这个帧前所需要的EDCA信道退避接入过程如下:当某个设备上的某个AC上要触发启动EDCA信道退避接入过程时,首先要确定两个参数:一是这个AC对应的EDCA参数里的AIFS,另一个是竞争窗口(Contention Window,CW)的退避记数值(backoff count)。其中,backoff count是通过如下方式得到的,backoff count为从0到CW值之间随机选取的一个值,其中CW值由如下规则确定:
如果这个物理层协议包单元(PHY Protocol Data Unit,PPDU)是第一次传输,记为重传计数值(Retry Count)为0,并得到一个CW=2^Retry_Count x(CWmin+1)-1=CWmin。
如果这个PPDU是第n次重传,记为Retry Count为(n-1)。
如果重传计数值没有到达这个PPDU最大允许重传上限,则得到一个CW=min{CWmax,2^Retry_Count x(CWmin+1)-1}。
如果重传次数已经到达这个PPDU最大允许重传上限,则将Retry_Count置0,并得到CW=CWmin。
在确定好AIFS和backoff count后,如果在这个IFS内信道都是空闲(idle)的,则开始在每个退避时隙(backoff slot)中继续侦测信道,如果在某个时隙中信道是空闲的,则减少backoffcount,继续在下一个退避时隙中侦测信道,直到backoff count减少到0,这时就可以启动一个数据传输。
当一个设备启动一个EDCA信道退避接入过程时,如果是在AIFS信道检测阶段就检查到信道为繁忙,则需要继续保持当前EDCA信道退避接入过程在AIFS阶段;如果是在信道退避检测阶段检查到信道为繁忙,则需要保持当前的backoffcount,并重新进入AIFS信道检测阶段进行信道检测,并在AIFS信道检测阶段检查到信道都为空闲时,再从上一次的backoff count重新开始,在信道退避检测阶段进行信道检测。如图4所示,在STA启动第一个EDCA信道退避接入过程中,如果有在这个过程中检测到信道繁忙,仍然会维持当前的EDCA信道退避接入过程。只有在当前的EDCA信道退避接入过程结束了,才会在下 次STA想要接入信道时再开启一个新的EDCA信道退避接入过程。
下面,通过几个实施例对本申请技术方案进行介绍说明。
请参考图5,其示出了本申请一个实施例提供的信道接入参数的更新方法的流程图。该方法可应用于图1所示的无线局域网中的任一作为发送端的设备中,该设备为站点设备或接入点设备。该方法可以包括如下步骤:
步骤502:在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
NSEP优先接入指的是保障对通信资源的优先接入的功能。在两个设备间,可以使能NSEP优先接入,从而保障对通信资源的优先接入;也可以去使能NSEP优先接入,从而恢复对通信资源的正常接入。NSEP优先接入的使能与去使能方式可以结合参考图2的说明,在此不再赘述。
在本申请实施例中,在NSEP优先接入使能期间,为使得使能了NSEP优先接入的两个设备间的传输,相比非使能NSEP优先接入的设备间的传输有更高的优先排序,从而保障对通信资源的优先接入,将使能NSEP优先接入的两个设备间的信道接入参数,设置成与非使能NSEP优先接入的设备间的信道接入参数不同来实现,并且,使能NSEP优先接入的两个设备间的信道接入参数,使得这两个设备间的传输可以以更高优先级接入信道。
在本申请实施例中,第一信道接入参数是与NSEP优先接入的使能情况变更前的情况对应的信道接入参数,第二信道接入参数是与NSEP优先接入的使能情况变更后的情况对应的信道接入参数。在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数,可以理解为:在NSEP优先接入的使能情况变更前,使用第一信道接入参数来接入信道,在NSEP优先接入的使能情况变更后,更新为使用第二信道接入参数来接入信道。
在本申请一种实施例中,NSEP优先接入的使能情况变更包括:使能NSEP优先接入,第一信道接入参数包括:非使能NSEP优先接入对应的信道接入参数,第二信道接入参数包括:使能NSEP优先接入对应的信道接入参数;或,NSEP优先接入的使能情况变更包括:去使能NSEP优先接入,第一信道接入参数包括:使能NSEP优先接入对应的信道接入参数,第二信道接入参数包括:非使能NSEP优先接入对应的信道接入参数。
也即,在使能NSEP优先接入的情况下,将非使能NSEP优先接入对应的信道接入参数更新为使能NSEP优先接入对应的信道接入参数;在去使能NSEP优先接入的情况下,将使能NSEP优先接入对应的信道接入参数更新为非使能NSEP优先接入对应的信道接入参数。
可以理解的是,上述使能NSEP优先接入对应的信道接入参数可以称为NSEP信道接入参数,上述非使能NSEP优先接入对应的信道接入参数可以称为普通(legacy)的信道接入参数。
示例性的,信道接入过程是EDCA信道退避接入过程,在使能NSEP优先接入的情况下,将普通(legacy)的EDCA参数更新为NSEP EDCA参数,使用NSEP EDCA参数来接入信道;在去使能NSEP优先接入的情况下,将NSEP EDCA参数更新为普通的EDCA参数,使用普通的EDCA参数来接入信道。
在本申请一种实施例中,非使能NSEP优先接入对应的信道接入参数由接入点设备在无线局域网中进行广播,所有和这个接入点设备连接的站点设备均使用这套信道接入参数进行相关的信道接入。
在本申请一种实施例中,使能NSEP优先接入对应的信道接入参数在NSEP使能的协商过程中进行指示。示例性的,如图2所示,NSEP优先接入请求帧中携带了使能NSEP优先接入对应的信道接入参数,即,NSEP信道接入参数,供这两个设备在NSEP优先接入使能期间使用,从而具有更高的优先级进行两个设备的传输。
在本申请一种实施例中,信道接入参数包括如下中的至少一种:AIFS、CWmin和CWmax。示例性的,使能NSEP优先接入对应的信道接入参数,相比一般的非使能NSEP优先接入对应的信道接入参数,有更小的AIFS,和/或有更小的CWmin、CWmax。
在本申请一种实施例中,在将第一信道接入参数更新为第二信道接入参数后,设备后续使用第二信道接入参数执行信道接入,且,在信道接入成功的情况下,进行数据发送。
综上所述,本实施例提供的信道接入参数的更新方法,在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数,使得设备可以基于更新后的第二信道接入参数进行信道接入,以适应当前的NSEP优先接入的使能情况。
在当前的NSEP机制中,尚未对设备在NSEP优先接入使能时,如何更新信道接入参数,以及是在什么样的时机更新信道接入参数进行规定。特别是,当设备在NSEP优先接入使能时,有一个或多个不同AC的信道接入过程正在进行中,因为这些正在进行的信道接入过程使用的仍然是普通的非使能NSEP优先接入对应的信道接入参数。
示例性的,如图6所示,在STA使用普通的EDCA参数进行EDCA信道退避接入过程中,这时,STA开始使能NSEP优先接入,并使用与普通的EDCA参数不同的NSEP EDCA参数。这时,需要明确的规定来确定相关行为。
示例性的,如图7所示,当STA在使用普通的EDCA参数进行EDCA信道退避接入过程中,检测到信道繁忙,需要再重新进入AIFS信道检测阶段,但在这个过程中,如果STA开始使能NSEP优先接入,并使用与普通的EDCA参数不同的NSEP EDCA参数。这时,需要明确的规定来确定相关行为,比如,后续的AIFS是使用普通的EDCA参数里的值,还是NSEP EDCA参数里的值。
同样地,在当前的NSEP机制中,如果设备在禁止NSEP优先接入时,也会遇到如何更新成普通的非使能NSEP优先接入对应的信道接入参数的问题。
为了解决上述问题,在基于图5的可选实施例中,提供如下两个解决方案:
方案1:在NSEP优先接入的使能情况变更的情况下,在下一次触发的信道接入过程中,将第一信道接入参数更新为第二信道接入参数。
方案2:在NSEP优先接入的使能情况变更,且正在进行信道接入过程的情况下,保持信道接入过程的计数值不变,在信道接入过程中将第一信道接入参数更新为第二信道接入参数。
下面,对如上两个方案进行进一步的说明。
方案1
请参考图8,其示出了本申请一个实施例提供的信道接入参数的更新方法的流程图。该方法可应用于图1所示的无线局域网中的任一作为发送端的设备中,该设备为站点设备或接入点设备。该方法可以包括如下步骤:
步骤802:在NSEP优先接入的使能情况变更的情况下,在下一次触发的信 道接入过程中,将第一信道接入参数更新为第二信道接入参数。
其中,下一次触发的信道接入过程是由于试图接入信道进行数据传输而触发的信道接入过程;或,下一次触发的信道接入过程是由于试图更新信道接入参数而触发的信道接入过程。
也即,设备在下一次按照正常逻辑触发一个新的信道接入过程,以进行数据的初传或重传时,将新的信道接入过程里的信道接入参数更新为第二信道接入参数;或者,设备主动触发一个新的信道接入过程,将新的信道接入过程里的信道接入参数更新为第二信道接入参数。
示例性的,当设备使能NSEP优先接入时,在某个AC上,无论有没有当前正在进行的信道接入过程,都是在下一次按照正常逻辑触发或是主动触发的信道接入过程中,更新成使能NSEP优先接入对应的信道接入参数,以进行信道接入参数设置。
示例性的,当设备去使能NSEP优先接入时,在某个AC上,无论有没有当前正在进行的信道接入过程,都是在下一次按照正常逻辑触发或是主动触发的信道接入过程中,更新成非使能NSEP优先接入对应的信道接入参数,以进行信道接入参数设置。
其中,下一次触发的信道接入过程指的是:在NSEP优先接入的使能情况变更的时间点之后,下一次触发的信道接入过程。
在一种可能的情况下,在NSEP优先接入的使能情况变更的时间点,正在进行信道接入过程,则下一次触发的信道接入过程为当前的信道接入过程完成后,下一次触发的信道接入过程。
在本申请一种实施例中,在该情况下,保持正在进行的信道接入过程的计数值和第一信道接入参数不变。在本申请一种实施例中,计数值包括如下中的至少一种:退避计数值(backoff count)、重传计数值(Retry_Count)。
示例性的,当设备使能NSEP优先接入时,如果在某个AC上有正在进行对应的使用非使能NSEP优先接入对应的信道接入参数的信道接入过程,则这个设备需要等待这个信道接入过程完成,并且不更改在这个信道接入过程中的backoff count,Retry_Count,AIFS等参数,并在下一次这个AC上启动一个新的信道接入过程时,再使用使能NSEP优先接入对应的信道接入参数来设置对应的信道接入过程里的信道接入参数,包括AIFS、CWmin、CWmax等。
示例性的,当设备去使能NSEP优先接入时,如果在某个AC上有正在进行对应的使用使能NSEP优先接入对应的信道接入参数的信道接入过程,则这个设备需要等待这个信道接入过程完成,并且不更改在这个信道接入过程中的backoff count,Retry_Count,AIFS等参数,并在下一次这个AC上启动一个新的信道接入过程时,再使用非使能NSEP优先接入对应的信道接入参数来设置对应的信道接入过程里的信道接入参数,包括AIFS、CWmin、CWmax等。
结合参考图9,信道接入过程是EDCA信道退避接入过程,设备使能NSEP优先接入时,是在这个设备在某个AC上正在处于使用普通的EDCA参数的信道接入过程中的信道退避检测阶段,这时这个设备不会立即在这个AC上将AIFS/CWmin/CWmax等更新成NSEP EDCA参数里的值,并保持backoff count/Retry Count等计数值不变。设备会等到这个当前正在进行的第一个EDCA信道退避接入过程结束后,重新开始一个新的EDCA信道退避接入过程时,再使用NSEP EDCA参数来进行设置相关的信道接入参数,并在触发启动这个新的EDCA信道退避接入过程时,使用第一个EDCA信道退避接入过程对应的Retry Count。
结合参考图10,信道接入过程是EDCA信道退避接入过程,设备使能NSEP优先接入时,是在这个设备在某个AC上正在处于使用普通的EDCA参数的信道接入过程并检测信道为繁忙的时刻,这时这个设备不会立即在这个AC上将AIFS/CWmin/CWmax等更新成NSEP EDCA参数里的值,并保持backoff count/Retry Count等值不变。设备会等到这个当前正在进行的第一个EDCA信道退避接入过程结束后,重新开始一个新的EDCA信道退避接入过程时,再使用NSEP EDCA参数来进行设置相关的信道参数,并在触发启动这个新的EDCA信道退避接入过程时,使用第一个EDCA信道退避接入过程对应的Retry Count。
在另一种可能的情况下,在NSEP优先接入的使能情况变更的时间点,没有进行使用非使能NSEP优先接入对应的信道接入参数的信道接入过程,则下一次触发的信道接入过程为在NSEP优先接入的使能情况变更的时间点之后,下一次触发的信道接入过程。
示例性的,当设备使能NSEP优先接入时,如果在某个AC上没有正在进行对应的使用非使能NSEP优先接入对应的信道接入参数的信道接入过程,则在下一次这个AC上启动一个新的信道接入过程时,使用使能NSEP优先接入对应 的信道接入参数来设置对应的信道接入过程里的信道接入参数,包括AIFS、CWmin、CWmax等。并在设备去使能NSEP优先接入前,都一直使用使能NSEP优先接入对应的信道接入参数来进行相应的信道接入过程。
示例性的,当设备去使能NSEP优先接入时,如果在某个AC上没有正在进行对应的使用使能NSEP优先接入对应的信道接入参数的信道接入过程,则在下一次这个AC上启动一个新的信道接入过程时,使用非使能NSEP优先接入对应的信道接入参数来设置对应的信道接入过程里的信道接入参数,包括AIFS、CWmin、CWmax等。并在设备使能NSEP优先接入前,都一直使用非使能NSEP优先接入对应的信道接入参数来进行相应的信道接入过程。
结合参考图11,信道接入过程是EDCA信道退避接入过程,设备使能NSEP优先接入时,这个设备在某个AC上没有在进行EDCA信道退避接入过程,则设备在开始一个新的EDCA信道退避接入过程时,使用NSEP EDCA参数来进行设置相关的信道接入参数。
综上所述,本实施例提供的方法,在NSEP优先接入的使能情况变更的情况下,在下一次触发的信道接入过程中,将第一信道接入参数更新为第二信道接入参数,完善了信道接入参数的更新机制,帮助设备可以快速地在第一信道接入参数和第二信道接入参数之间进行正确地切换,提高了空口利用率。
方案2
请参考图12,其示出了本申请一个实施例提供的信道接入参数的更新方法的流程图。该方法可应用于图1所示的无线局域网中的任一作为发送端的设备中,该设备为站点设备或接入点设备。该方法可以包括如下步骤:
步骤1202:在NSEP优先接入的使能情况变更,且正在进行信道接入过程的情况下,保持信道接入过程的计数值不变,在信道接入过程中将第一信道接入参数更新为第二信道接入参数。
也即,当设备使能/去使能NSEP优先接入时,在某个AC上,当有当前正在进行的信道接入过程时,保持当前的计数值等不变,并在当前正在进行的信道接入过程中对信道接入参数进行更新。
在本申请一种实施例中,计数值包括如下中的至少一种:退避计数值(backoff count)、重传计数值(Retry_Count)。
在本申请一种实施例中,在步骤1202中,在信道接入过程中将第一信道接 入参数更新为第二信道接入参数包括:在信道接入过程的信道退避检测阶段,将第一信道接入参数更新为第二信道接入参数。
结合参考如上图3、图4,信道接入过程包括如下阶段中的至少一种:AIFS信道检测阶段、信道退避检测阶段和信道繁忙状态阶段。其中,AIFS信道检测阶段指的是在IFS内侦测信道的阶段,信道退避检测阶段指的是在退避时隙内侦测信道的阶段,信道繁忙状态阶段指的是检测信道为繁忙的阶段。在本申请一种实施例中,在信道接入过程中的信道退避检测阶段,设备使能/去使能NSEP优先接入,则设备直接在该信道退避检测阶段,将第一信道接入参数更新为第二信道接入参数。在本申请一种实施例中,在信道接入过程中的其他阶段,设备使能/去使能NSEP优先接入,则设备需要等待到信道接入过程中的下一个信道退避检测阶段,将第一信道接入参数更新为第二信道接入参数。
示例性的,当设备使能NSEP优先接入时,如果在某个AC上有正在进行对应的使用非使能NSEP优先接入对应的信道接入参数的信道接入过程,则这个设备在这个AC上将AIFS/CWmin/CWmax等更新成使能NSEP优先接入对应的信道接入参数里的值,但仍然保持backoff count/Retry Count等计数值不变。在信道接入过程后续的AIFS信道检测阶段使用的就是更新后的AIFS值。并且,由于这个AC上的CWmin/CWmax等已经更新成使能NSEP优先接入对应的信道接入参数里的值,在这个AC后续触发启动的信道接入过程,也会使用使能NSEP优先接入对应的信道接入参数来进行相对应的信道接入参数设置。
示例性的,当设备去使能NSEP优先接入时,如果在某个AC上有正在进行对应的使用使能NSEP优先接入对应的信道接入参数的信道接入过程,则这个设备在这个AC上将AIFS/CWmin/CWmax等更新成非使能NSEP优先接入对应的信道接入参数里的值,但仍然保持backoff count/Retry Count等计数值不变。在信道接入过程后续的AIFS信道检测阶段使用的就是更新后的AIFS值。并且,由于这个AC上的CWmin/CWmax等已经更新成非使能NSEP优先接入对应的信道接入参数里的值,在这个AC后续触发启动的信道接入过程,也会使用非使能NSEP优先接入对应的信道接入参数来进行相对应的信道接入参数设置。
结合参考图13,信道接入过程是EDCA信道退避接入过程,当设备使用普通的EDCA参数在某个AC上进行一个EDCA信道退避接入过程中,设备使能NSEP优先接入的时间点是在这个EDCA信道退避接入过程中的信道退避检测 阶段,则这个设备在这个AC上将AIFS/CWmin/CWmax等更新成NSEP EDCA参数里的值,但仍然保持backoff count/Retry Count等值不变。当后续在这个EDCA信道退避接入过程中发现信道繁忙而重新进入AIFS信道检测阶段时,这时使用的就是更新的AIFS值。
综上所述,本实施例提供的方法,在NSEP优先接入的使能情况变更,且正在进行信道接入过程的情况下,保持信道接入过程的计数值不变,在信道接入过程中将第一信道接入参数更新为第二信道接入参数,完善了信道接入参数的更新机制,帮助设备可以快速地在第一信道接入参数和第二信道接入参数之间进行正确地切换,提高了空口利用率。
可以理解的是,上述方法实施例可以单独实施,也可以组合实施,本申请对此不加以限制。
下述为本申请装置实施例,可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节,请参照本申请方法实施例。
请参考图14,其示出了本申请一个实施例提供的信道接入参数的更新装置的框图。该装置具有实现上述方法示例的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的站点设备,也可以设置在站点设备中;可以是上文介绍的接入点设备,也可以设置在接入点设备中。如图14所示,该装置1400可以包括:参数更新模块1410;
所述参数更新模块1410,用于在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
在本申请一种实施例中,所述参数更新模块1410,用于在下一次触发的信道接入过程中,将第一信道接入参数更新为第二信道接入参数。
在本申请一种实施例中,所述下一次触发的信道接入过程是由于试图接入信道进行数据传输而触发的信道接入过程;
或,
所述下一次触发的信道接入过程是由于试图更新信道接入参数而触发的信道接入过程。
在本申请一种实施例中,所述参数更新模块1410,用于在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值和第一信道接入参数不变。
在本申请一种实施例中,所述参数更新模块1410,用于在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值不变,在所述信道接入过程中将所述第一信道接入参数更新为所述第二信道接入参数。
在本申请一种实施例中,所述参数更新模块1410,用于在所述信道接入过程的信道退避检测阶段,将所述第一信道接入参数更新为所述第二信道接入参数。
在本申请一种实施例中,所述计数值包括如下中的至少一种:
退避计数值、重传计数值。
在本申请一种实施例中,所述NSEP优先接入的使能情况变更包括:使能所述NSEP优先接入,所述第一信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数;
或,
所述NSEP优先接入的使能情况变更包括:去使能所述NSEP优先接入,所述第一信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数。
在本申请一种实施例中,所述信道接入参数包括如下中的至少一种:AIFS、CWmin和CWmax。
需要说明的一点是,上述实施例提供的装置在实现其功能时,仅以上述各个功能模块的划分进行举例说明,实际应用中,可以根据实际需要而将上述功能分配由不同的功能模块完成,即将设备的内容结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
请参考图15,其示出了本申请一个实施例提供的通信设备的结构示意图,该通信设备可以为站点设备,也可以为接入点设备。该通信设备可以包括:处理器1501、接收器1502、发送器1503、存储器1504和总线1505。
处理器1501包括一个或者一个以上处理核心,处理器1501通过运行软件程序以及模块,从而执行各种功能应用。
接收器1502和发送器1503可以实现为一个收发器1506,该收发器1506可以是一块通信芯片。
存储器1504通过总线1505与处理器1501相连。
存储器1504可用于存储计算机程序,处理器1501用于执行该计算机程序,以实现上述方法实施例中终端设备执行的各个步骤。
此外,存储器1504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:随机存储器(Random-Access Memory,RAM)和只读存储器(Read-Only Memory,ROM)、可擦写可编程只读存储器(Erasable Programmable Read-Only Memory,EPROM)、电可擦写可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、闪存或其他固态存储其技术,只读光盘(Compact Disc Read-Only Memory,CD-ROM)、高密度数字视频光盘(Digital Video Disc,DVD)或其他光学存储、磁带盒、磁带、磁盘存储或其他磁性存储设备。
在本实施例中,所述处理器1501,用于在NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
在本申请一种实施例中,所述处理器1501,用于在下一次触发的信道接入过程中,将第一信道接入参数更新为第二信道接入参数。
在本申请一种实施例中,所述下一次触发的信道接入过程是由于试图接入信道进行数据传输而触发的信道接入过程;
或,
所述下一次触发的信道接入过程是由于试图更新信道接入参数而触发的信道接入过程。
在本申请一种实施例中,所述处理器1501,用于在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值和第一信道接入参数不变。
在本申请一种实施例中,所述处理器1501,用于在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值不变,在所述信道接入过程中将所述第一信道接入参数更新为所述第二信道接入参数。
在本申请一种实施例中,所述处理器1501,用于在所述信道接入过程的信道退避检测阶段,将所述第一信道接入参数更新为所述第二信道接入参数。
在本申请一种实施例中,所述计数值包括如下中的至少一种:
退避计数值、重传计数值。
在本申请一种实施例中,所述NSEP优先接入的使能情况变更包括:使能所述NSEP优先接入,所述第一信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数;
或,
所述NSEP优先接入的使能情况变更包括:去使能所述NSEP优先接入,所述第一信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数。
在本申请一种实施例中,所述信道接入参数包括如下中的至少一种:AIFS、CWmin和CWmax。
本申请实施例还提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序用于被处理器执行,以实现上述信道接入参数的更新方法。
可选地,该计算机可读存储介质可以包括:只读存储器(Read-Only Memory,ROM)、随机存储器(Random-Access Memory,RAM)、固态硬盘(Solid State Drives,SSD)或光盘等。其中,随机存取记忆体可以包括电阻式随机存取记忆体(Resistance Random Access Memory,ReRAM)和动态随机存取存储器(Dynamic Random Access Memory,DRAM)。
本申请实施例还提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现上述信道接入参数的更新方法。
本申请实施例还提供了一种计算机程序产品或计算机程序,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现上述信道接入参数的更新方法。
本申请实施例中的处理器包括:专用集成电路(Application Specific Integrated Circuit,ASIC)。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B 可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
在本文中提及的“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
另外,本文中描述的步骤编号,仅示例性示出了步骤间的一种可能的执行先后顺序,在一些其它实施例中,上述步骤也可以不按照编号顺序来执行,如两个不同编号的步骤同时执行,或者两个不同编号的步骤按照与图示相反的顺序执行,本申请实施例对此不作限定。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (22)

  1. 一种信道接入参数的更新方法,其特征在于,所述方法由站点设备或接入点设备执行,所述方法包括:
    在国家安全和应急准备NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
  2. 根据权利要求1所述的方法,其特征在于,所述将第一信道接入参数更新为第二信道接入参数,包括:
    在下一次触发的信道接入过程中,将第一信道接入参数更新为第二信道接入参数。
  3. 根据权利要求2所述的方法,其特征在于,
    所述下一次触发的信道接入过程是由于试图接入信道进行数据传输而触发的信道接入过程;
    或,
    所述下一次触发的信道接入过程是由于试图更新信道接入参数而触发的信道接入过程。
  4. 根据权利要求2或3所述的方法,其特征在于,所述方法还包括:
    在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值和第一信道接入参数不变。
  5. 根据权利要求1所述的方法,其特征在于,所述将第一信道接入参数更新为第二信道接入参数,包括:
    在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值不变,在所述信道接入过程中将所述第一信道接入参数更新为所述第二信道接入参数。
  6. 根据权利要求5所述的方法,其特征在于,所述在所述信道接入过程中将所述第一信道接入参数更新为所述第二信道接入参数,包括:
    在所述信道接入过程的信道退避检测阶段,将所述第一信道接入参数更新为所述第二信道接入参数。
  7. 根据权利要求4至6任一所述的方法,其特征在于,所述计数值包括如下中的至少一种:
    退避计数值、重传计数值。
  8. 根据权利要求1至7任一所述的方法,其特征在于,
    所述NSEP优先接入的使能情况变更包括:使能所述NSEP优先接入,所述第一信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数;
    或,
    所述NSEP优先接入的使能情况变更包括:去使能所述NSEP优先接入,所述第一信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数。
  9. 根据权利要求1至8任一所述的方法,其特征在于,所述信道接入参数包括如下中的至少一种:
    仲裁帧间间隔AIFS、最小竞争窗口CWmin和最大竞争窗口CWmax。
  10. 一种信道接入参数的更新装置,其特征在于,所述装置包括:参数更新模块;
    所述参数更新模块,用于在国家安全和应急准备NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
  11. 根据权利要求10所述的装置,其特征在于,
    所述参数更新模块,用于在下一次触发的信道接入过程中,将第一信道接入参数更新为第二信道接入参数。
  12. 根据权利要求11所述的装置,其特征在于,
    所述下一次触发的信道接入过程是由于试图接入信道进行数据传输而触发的信道接入过程;
    或,
    所述下一次触发的信道接入过程是由于试图更新信道接入参数而触发的信道接入过程。
  13. 根据权利要求11或12所述的装置,其特征在于,
    所述参数更新模块,用于在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值和第一信道接入参数不变。
  14. 根据权利要求10所述的装置,其特征在于,
    所述参数更新模块,用于在正在进行信道接入过程的情况下,保持所述信道接入过程的计数值不变,在所述信道接入过程中将所述第一信道接入参数更新为所述第二信道接入参数。
  15. 根据权利要求14所述的装置,其特征在于,
    所述参数更新模块,用于在所述信道接入过程的信道退避检测阶段,将所述第一信道接入参数更新为所述第二信道接入参数。
  16. 根据权利要求13至15任一所述的装置,其特征在于,所述计数值包括如下中的至少一种:
    退避计数值、重传计数值。
  17. 根据权利要求10至16任一所述的装置,其特征在于,
    所述NSEP优先接入的使能情况变更包括:使能所述NSEP优先接入,所述第一信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数;
    或,
    所述NSEP优先接入的使能情况变更包括:去使能所述NSEP优先接入,所述第一信道接入参数包括:使能所述NSEP优先接入对应的信道接入参数,所述第二信道接入参数包括:非使能所述NSEP优先接入对应的信道接入参数。
  18. 根据权利要求10至17任一所述的装置,其特征在于,所述信道接入参数包括如下中的至少一种:
    仲裁帧间间隔AIFS、最小竞争窗口CWmin和最大竞争窗口CWmax。
  19. 一种通信设备,其特征在于,所述通信设备包括处理器;
    所述处理器,用于在国家安全和应急准备NSEP优先接入的使能情况变更的情况下,将第一信道接入参数更新为第二信道接入参数。
  20. 一种计算机可读存储介质,其特征在于,所述存储介质中存储有计算机程序,所述计算机程序用于被处理器执行,以实现如权利要求1至9任一项所述的信道接入参数的更新方法。
  21. 一种芯片,其特征在于,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现如权利要求1至9任一项所述的信道接入参数的更新方法。
  22. 一种计算机程序产品或计算机程序,其特征在于,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现如权利要求1至9任一项所述的信道接入参数的更新方法。
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