WO2023185948A1 - Procédé d'envoi d'informations, procédé de réception d'informations et appareil de communication - Google Patents

Procédé d'envoi d'informations, procédé de réception d'informations et appareil de communication Download PDF

Info

Publication number
WO2023185948A1
WO2023185948A1 PCT/CN2023/084800 CN2023084800W WO2023185948A1 WO 2023185948 A1 WO2023185948 A1 WO 2023185948A1 CN 2023084800 W CN2023084800 W CN 2023084800W WO 2023185948 A1 WO2023185948 A1 WO 2023185948A1
Authority
WO
WIPO (PCT)
Prior art keywords
twt
field
broadcast
bytes
parameter set
Prior art date
Application number
PCT/CN2023/084800
Other languages
English (en)
Chinese (zh)
Inventor
杨懋
闫中江
李云波
郭宇宸
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023185948A1 publication Critical patent/WO2023185948A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
    • H04L1/0008—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length by supplementing frame payload, e.g. with padding bits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
    • 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

  • Embodiments of the present application relate to wireless local area networks, and more specifically, to a method and communication device for sending and receiving information.
  • Wireless Local Area Network has experienced standards such as IEEE 802.11a/b/g/n/ac/ax, and 802.11be, which is currently being discussed in the industry, and its standard versions continue to evolve and develop. At present, more and more wireless network applications and services have put forward strict requirements on delay characteristics, such as online games, virtual reality, industrial sites, etc. To this end, the 802.11be standard regards delay guarantee and delay jitter characteristics as a key technical goal, and plans to introduce restricted target wakeup time (r-TWT) technology to improve delay guarantee performance.
  • the r-TWT parameter information is carried in the TWT element field of the broadcast management frame. For a broadcast TWT, the TWT parameter information includes multiple broadcast TWT parameter sets.
  • the broadcast TWT suggestion subfield in the request type field of each broadcast TWT parameter set is used to indicate the TWT type specified by the broadcast TWT parameter set.
  • the value of the broadcast TWT suggestion subfield is extended to indicate that the TWT type specified by the extended value is r-TWT.
  • r-TWT was introduced in the 802.11be standard, legacy stations (legacy stations, legacy STA) will not be able to understand it. Therefore, if a broadcast TWT parameter set in a TWT element contains r-TWT service information, the length of the broadcast TWT parameter set changes accordingly, but the legacy STA always thinks that the length of the broadcast TWT parameter set is 9 bytes, and then It will lead to misreading of the information in the TWT element and bring unpredictable consequences.
  • This application provides a method for sending and receiving information, which can support carrying restricted TWT service information (i.e. r-TWT service information) in broadcast management frames, and will not cause legacy STA to treat TWT elements carrying the restricted TWT service information. Misinterpretation of information in.
  • restricted TWT service information i.e. r-TWT service information
  • the method for sending information provided in the first aspect or the second aspect below can be applied to an access point (ie, AP) of a WLAN.
  • the method can be executed by the AP, or by a chip or chip system deployed on the AP. , without limitation.
  • the following uses the access point to execute this method as an example for explanation.
  • the first aspect provides a method of sending information, which method includes:
  • the access point generates a management management frame, the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field;
  • the first TWT element conforms to one of the following:
  • the first TWT element contains a negotiation type field, and the value of the negotiation type field is 3;
  • the first broadcast TWT parameter set contained in the first TWT element includes two 9 bytes.
  • the first 9 bytes of the two 9 bytes include a request type field and a broadcast TWT information field.
  • the request type field includes a broadcast TWT.
  • Suggestion field the value of the broadcast TWT suggestion field belongs to the set ⁇ 4, 5, 6, 7 ⁇
  • the broadcast TWT information field contains the restricted TWT service information existence indication field
  • the value of the restricted TWT service information existence indication field is 1; as described
  • the second 9 bytes of the two 9 bytes contains the first domain and the restricted TWT service information domain.
  • the first domain is the first 2 bytes of the second 9 bytes.
  • the restricted TWT service information domain is located at After the first field, the first field contains the second field.
  • the position of the second field in the first field is the same as the position of the broadcast TWT suggestion field in the first 9-byte request type field.
  • the second field The value belongs to the set ⁇ 4,5,
  • the first broadcast TWT parameter set included in the first TWT element is the last broadcast TWT parameter set in the broadcast TWT parameter set included in the first TWT element.
  • the first broadcast TWT parameter set includes a request type field, and the request type field includes a broadcast TWT suggestion field.
  • the value of the broadcast TWT suggestion field belongs to the set ⁇ 4,5,6,7 ⁇ ;
  • the access point sends broadcast management frames.
  • the first type of station that is, a traditional station
  • Carrying restricted TWT service information fields causes traditional sites to misread the information in the TWT elements.
  • the second aspect provides a method of sending information, which method includes:
  • the access point generates broadcast management frames
  • the broadcast management frame contains a first TWT element
  • the first TWT element contains an element identification field and a restricted TWT parameter information field.
  • the element identification field is used to identify the first TWT element as a TWT element containing a restricted TWT service information field.
  • the restricted TWT element contains the restricted TWT service information field;
  • the access point sends broadcast management frames.
  • the restricted TWT element i.e., r-TWT element
  • a new element identifier to identify the restricted TWT element
  • the method for receiving information provided by any one of the following third to fifth aspects may be applied to a station of WLAN (ie, STA).
  • STA station of WLAN
  • the method may be performed by the STA, or by a chip or chip deployed on the STA.
  • the system executes it without any restrictions.
  • STA uses STA to execute this method as an example for explanation.
  • the STA that performs this method is a traditional STA, that is, the first type of STA described in this application. Detailed descriptions of the first type of STA are provided in the specification and will not be described again here.
  • the third aspect provides a method of receiving information, which method includes:
  • the first type of station receives broadcast management frames from the access point
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field;
  • the first TWT element also includes a negotiation type field, and the value of the negotiation type field is 3;
  • Stations of the first type handle broadcast management frames.
  • the first type of site does not parse the first TWT element when the value of the negotiation type field of the first TWT element is 3.
  • the fourth aspect provides a method of receiving information, which method includes:
  • Type 1 stations receive broadcast management frames from the access point
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field;
  • the first broadcast TWT parameter set includes two 9 bytes, the first 9 bytes of the two 9 bytes includes a request type field and a broadcast TWT information field, the request type field includes a broadcast TWT suggestion field, and the broadcast The value of the TWT suggestion field belongs to the set ⁇ 4, 5, 6, 7 ⁇ .
  • the broadcast TWT information field includes the restricted TWT service information existence indication field.
  • the value of the restricted TWT service information existence indication field is 1; the two The second 9 bytes of the 9 bytes include the first domain and the restricted TWT service information field.
  • the first domain is the first 2 bytes of the second 9 bytes.
  • the restricted TWT service information field The domain is located after the first domain, the first domain contains the second domain, and the position of the second domain in the first domain is the same as the position of the broadcast TWT suggestion field in the first 9 bytes of the request type field. , the value of the second domain belongs to the set ⁇ 4,5,6,7 ⁇ ;
  • Stations of the first type handle broadcast management frames.
  • the restricted TWT service information field included in the second 9 bytes includes 3 bytes
  • the broadcast TWT suggestion field includes 3 bits
  • the broadcast TWT The 3 bits included in the suggestion field are the 8th to 10th bits in the request type field
  • the second field contains 3 bits, and the 3 bits contained in the second field are the 8th bit to the 10th bit in the first field.
  • the last 4 bytes of the second 9 bytes are reserved bytes.
  • the first type of station processes broadcast management frames, including:
  • the first type of site skips the first 9 words when the value of the broadcast TWT suggestion field in the first broadcast TWT parameter set contained in the first TWT element belongs to the set ⁇ 4, 5, 6, 7 ⁇ . Festival;
  • the first type of site skips the second 9 bytes when the value of the second field in the second 9 bytes belongs to the set ⁇ 4, 5, 6, 7 ⁇ .
  • the fifth aspect provides a method of receiving information, which method includes:
  • Type 1 stations receive broadcast management frames from the access point
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, the first broadcast TWT parameter set is the last broadcast TWT parameter set in the first TWT element, and the first broadcast TWT parameter set includes Request type field, the request type field contains the broadcast TWT suggestion field, and the value of the broadcast TWT suggestion field belongs to the set ⁇ 4,5,6,7 ⁇ ;
  • Stations of the first type handle broadcast management frames.
  • the first type of station processes broadcast management frames, including:
  • the first type of station skips the first broadcast TWT parameter set and performs the operation according to the first TWT
  • the length of the element determines the number of bytes or bits after the first broadcast TWT parameter set. If the number of bytes or bits is insufficient to constitute a broadcast TWT parameter set, the parsing of the first TWT element ends.
  • the sixth aspect provides a method of receiving information, which method includes:
  • Type 1 stations receive broadcast management frames from the access point
  • the broadcast management frame contains a first TWT element
  • the first TWT element contains an element identification field and a restricted TWT parameter information field.
  • the element identification field is used to indicate that the first TWT element is a TWT element containing a restricted TWT service information field, so
  • the restricted TWT parameter information field includes the restricted TWT service information field;
  • Stations of the first type handle broadcast management frames.
  • the first type of station processes broadcast management frames, including:
  • the first type of site does not parse the first TWT element based on the element identifier of the first TWT element.
  • a seventh aspect provides a communication device having the function of implementing the method in the first aspect or the second aspect, or any possible implementation of these aspects.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above functions.
  • An eighth aspect provides a communication device having the function of implementing any one of the third to sixth aspects, or the method in any possible implementation of these aspects.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above functions.
  • a communication device including a processor and a memory.
  • a transceiver may also be included.
  • the memory is used to store computer programs
  • the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the first aspect or the second aspect, or any of these aspects. method in the implementation.
  • a communication device including a processor and a memory.
  • a transceiver may also be included.
  • the memory is used to store computer programs
  • the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs any one of the third to sixth aspects, or these method in any possible implementation of the aspect.
  • a communication device including a processor and a communication interface.
  • the communication interface is used to receive data and/or information and transmit the received data and/or information to the processor.
  • the processor processes the data and/or information, and the communication interface is also used to output the data and/or information processed by the processor, so that as in the first aspect or the second aspect, or any of these aspects is possible.
  • the methods in the implementation are executed.
  • a communication device including a processor and a communication interface.
  • the communication interface is used to receive data and/or information and transmit the received data and/or information to the processor.
  • the processor processes the data and/or information, and the communication interface is also used to output data and/or information processed by the processor, so as to achieve any one of the third to sixth aspects, or any possible implementation of these aspects.
  • the method in the method is executed.
  • a computer-readable storage medium is provided.
  • Computer instructions are stored in the computer-readable storage medium.
  • the computer instructions are run on a computer, the first aspect or the second aspect, or any of these aspects, is achieved. Methods in any possible implementation are executed.
  • a computer-readable storage medium is provided.
  • Computer instructions are stored in the computer-readable storage medium.
  • any one of the third to sixth aspects is achieved. , or methods in any possible implementation of these aspects are executed.
  • a computer program product includes computer program code.
  • the computer program product includes computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the first aspect or the second aspect, or any of these aspects. Methods in possible implementations are executed.
  • a computer program product includes computer program code.
  • the computer program product includes computer program code.
  • the computer program code When the computer program code is run on a computer, it causes any one of the third to sixth aspects, or Methods in any possible implementation of these aspects are performed.
  • a chip in a seventeenth aspect, includes a processor.
  • a memory used to store a computer program is provided independently of the chip.
  • the processor is used to execute the computer program stored in the memory so that a device equipped with the chip executes Such as the method in the first aspect or the second aspect, or any possible implementation manner of these aspects.
  • An eighteenth aspect provides a chip.
  • the chip includes a processor.
  • a memory used to store a computer program is provided independently of the chip.
  • the processor is used to execute the computer program stored in the memory so that a device equipped with the chip executes Such as any one of the third to sixth aspects, or the method in any possible implementation of these aspects.
  • the processor in the sixteenth or seventeenth aspect may be a processing circuit or a logic circuit.
  • the chip may also include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit, etc.
  • the chip may further include the memory.
  • processors there may be one or more processors, one or more memories, and one or more memories.
  • a communication system including the communication device as described in the sixth aspect and/or the seventh aspect.
  • Figure 1 is a schematic diagram of the r-TWT mechanism.
  • Figure 2 is a schematic diagram of the frame structure of a TWT element.
  • Figure 3 is an example of legacy STA misreading the information in the broadcast frame.
  • Figure 4 is a schematic diagram of a communication system suitable for embodiments of the present application.
  • Figure 5 is a schematic flow chart of the method for sending information provided by this application.
  • Figure 6 shows the frame structure of the extended broadcast TWT parameter set provided by this application.
  • FIG. 7 is a schematic diagram of the frame structure of the TWT element provided by this application.
  • Figure 8 is a schematic diagram of the frame structure of the r-TWT element provided by this application.
  • Figure 9 is a schematic block diagram of a communication device provided by this application.
  • Figure 10 is a schematic structural diagram of a communication device provided by this application.
  • r-TWT restricted target wakeup time
  • FIG. 1 is a schematic diagram of the r-TWT mechanism.
  • the AP broadcasts one or more r-TWT service periods (SP) through beacon frames or detection response frames.
  • SP service period
  • the EHT STA in the basic service set (BSS) receives the information of any r-TWT SP broadcast by the AP, if the dot11RestrictedTWTOptionImplemented of the EHT STA is set to true, the EHT STA must be in the r-TWT SP End your own transmission opportunity (TXOP) before the start time.
  • BSS basic service set
  • TXOP transmission opportunity
  • the AP can set a silent interval corresponding to the starting time of r-TWT SP in the beacon frame or detection response frame, with a duration of 1 millisecond.
  • EHT STAs belonging to this r-TWT SP group (grouped by broadcast TWT ID) are required to ignore the above silent interval and compete for the channel after the r-TWT SP starts.
  • Other EHT STAs need to remain silent according to the silent interval. This will reduce the number of EHT STAs competing for the channel in the BSS and increase the probability of EHT STAs with low-latency services obtaining the channel.
  • the r-TWT parameter information is indicated in the TWT element field.
  • a broadcast TWT element includes an element identification field, a length field, a control field and a TWT parameter information field.
  • the control field includes the no data frame paging indicator (NDP paging indicator) field, the responder energy management mode (responder PM mode), the negotiation type (negotiation type) field, the TWT information frame disabled (TWT information frame disabled) field, and the wake-up Duration unit (wakeup duration unit) field, link identifier bitmap present (link identifier bitmap present) field and reservation.
  • the TWT parameter information field contains one or more broadcast TWT parameter sets.
  • Each broadcast TWT parameter set includes a request type (request type) field, a target wakeup time (TWT) field, a minimum TWT wakeup duration (nominal minimum TWT wakeup duration) field, and a TWT wakeup interval mantissa (TWT wakeup interval mantissa) and broadcast TWT information (broadcast TWT info) field.
  • the request type field includes a broadcast TWT recommendation field, and the broadcast TWT recommendation field is used to indicate the TWT type specified by the broadcast TWT parameter set.
  • the broadcast TWT suggestion field is 4, it means that the broadcast TWT parameter set corresponds to one r-TWT.
  • the broadcast TWT information field may include a restricted TWT traffic information present field, a broadcast TWT identification (broadcast TWT ID) field, and a broadcast TWT persistence field. Among them, a 2-bit reservation is included between the restricted TWT service information existence indication field and the broadcast TWT identification field.
  • the broadcast TWT ID field indicates the identity of the TWT group.
  • the broadcast TWT information field contains a one-bit existence indication field of the r-TWT service information.
  • the name of the r-TWT service information existence indication field is not limited in this application, and it can also be another name.
  • the function of this field is to indicate whether the r-TWT service information field is included in the broadcast TWT parameter set.
  • this field may have two values. One value indicates that the broadcast TWT parameter set contains the r-TWT service information domain, and the other value indicates that the broadcast TWT parameter set does not contain the r-TWT service information domain.
  • the r-TWT service information presence indication field may contain 1 bit. When the value of this 1 bit is 1, it means that the TWT element field contains the r-TWT service information field. When the value of this 1 bit is 0, it means that the TWT element field does not contain the r-TWT service information field.
  • this application does not limit the name of the r-TWT service information field, and other names can also be used.
  • Figure 2 is only used as an example.
  • the description here about the r-TWT service information existence indication field and the r-TWT service information field is also applicable to the following embodiments, and the description will not be repeated.
  • a broadcast TWT information field does not contain the r-TWT service information field, then the length of the broadcast TWT information field is 9 bytes; if a broadcast TWT information field contains the r-TWT service information field , then the length of this broadcast TWT information field is 12 bytes.
  • r-TWT and r-TWT service information field were introduced in 802.11be, for legacy STA, it always considers the broadcast TWT information field to be 9 bytes. Therefore, when the r-TWT service information field is carried in the broadcast frame, it may cause the legacy STA to misread it, resulting in unpredictable consequences.
  • a certain TWT element in the beacon frame sent by the AP contains N broadcast TWT parameter sets.
  • the i-th broadcast parameter set is the first broadcast TWT parameter set corresponding to r-TWT, that is, the value of the broadcast suggestion field in the request type field of the i-th broadcast TWT parameter set is 4.
  • the 1st to i-1th broadcast TWT parameter sets do not correspond to r-TWT, that is, the value of the broadcast TWT suggestion field in the request type field is 0, 1, 2 or 3.
  • the i-th broadcast TWT parameter set is the first broadcast TWT parameter set corresponding to r-TWT
  • the first i-1 broadcast TWT parameter sets can be parsed correctly for legacy STA.
  • the legacy STA parsed the i-th broadcast TWT parameter set it found that the value of the broadcast TWT suggestion field in the request type field was 4. The legacy STA could not understand the request type, so the legacy STA planned to skip the i-th broadcast.
  • legacy STA believes that the length of the i-th broadcast TWT parameter set is 9 bytes, but in fact, the length of the i-th broadcast TWT parameter set contains the r-TWT service information field, and its length is 12 bytes. Therefore, legacy The starting position of the i+1th broadcast TWT parameter set considered by the STA is 3 bits earlier than its actual starting position, thus causing bit confusion. This bit confusion problem will cause legacy STA to misread the information of all broadcast TWT parameter sets after the i-th broadcast TWT parameter set, bringing unpredictable consequences.
  • the embodiment of the present application provides a method for transmitting information applied to a wireless LAN system, aiming to prevent legacy STA from misreading the broadcast frame when the r-TWT service information field is carried in the broadcast frame.
  • the method may be implemented by a communication device in a wireless LAN system or a chip or processor in the communication device
  • the technical solution provided by this application can be applied to WLAN scenarios, for example, can be applied to IEEE 802.11 system standards, such as 802.11a/b/g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, or their next generation, such as 802.11 be standard or a next generation standard.
  • IEEE 802.11 system standards such as 802.11a/b/g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, or their next generation, such as 802.11 be standard or a next generation standard.
  • HIPERLAN high performance radio local area network
  • WAN wide area network
  • PAN personal area network
  • HIPERLAN is a wireless standard similar to the IEEE 802.11 standard, mainly used in Europe. Therefore, the various aspects provided herein may be applicable to any suitable wireless network, regardless of the coverage and wireless access protocols used.
  • Embodiments of the present application may also be applied to wireless local area network systems such as Internet of Things (IoT) networks or Vehicle to X (V2X).
  • IoT Internet of Things
  • V2X Vehicle to X
  • the embodiments of the present application can also be applied to other possible communication systems, such as long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division) system duplex (TDD), universal mobile telecommunication system (UMTS), global interoperability for microwave access (WiMAX) communication system, fifth generation (5th generation, 5G) communication system, and future Sixth generation (6G) communication system, etc.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global interoperability for microwave access
  • 5G fifth generation
  • 6G Sixth generation
  • FIG 4 is a schematic diagram of a communication system suitable for embodiments of the present application.
  • the method of sending and receiving information provided by this application is suitable for data communication between an AP and one or more STAs (for example, data communication between AP1 and STA1, STA2).
  • the STA here includes at least legacy STA, for example, STA1.
  • EHT STAs such as STA 2 can be included.
  • the access point can be an access point for a terminal device (for example, a mobile phone) to enter a wired (or wireless) network. It is mainly deployed inside homes, buildings, and campuses. The typical coverage radius is tens of meters to hundreds of meters. Of course, It can also be deployed outdoors.
  • the access point is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the access point can be a terminal device (such as a mobile phone) or a network device (such as a router) with a Wi-Fi chip.
  • the access point can be a device that supports the 802.11be standard.
  • the access point can also support multiple wireless local area networks (WLAN) standards of the 802.11 family such as 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, and 802.11be next generation.
  • WLAN wireless local area networks
  • the access point in this application can be a highly efficient (HE) AP or an extremely high throughput (EHT) AP, or it can be an access point suitable for a certain future generation of Wi-Fi standards.
  • HE highly efficient
  • EHT extremely high throughput
  • the site can be a wireless communication chip, wireless sensor or wireless communication terminal, etc., and can also be called a user.
  • the site can be a mobile phone that supports Wi-Fi communication function, a tablet computer that supports Wi-Fi communication function, a set-top box that supports Wi-Fi communication function, a smart TV that supports Wi-Fi communication function, or a smart TV that supports Wi-Fi communication function.
  • the site can support the 802.11be standard.
  • the site can also support multiple wireless local area networks (WLAN) standards of the 802.11 family such as 802.11a/b/g/n, 802.11ac, 802.11ax, 802.11be and 802.11be next generation.
  • WLAN wireless local area networks
  • Figure 5 is a schematic flow chart of a method for sending information provided by this application.
  • the AP generates a broadcast management frame.
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field.
  • the first TWT element may contain one or more first broadcast TWT parameter sets. That is, the first TWT element refers to a TWT element containing a restricted TWT service information field, and the broadcast TWT parameter set (ie, the first broadcast TWT parameter set) containing a restricted TWT service information field in the first TWT element may be one or Multiple, no limit.
  • the broadcast management frame contains one or more first TWT elements.
  • the broadcast management frame may also contain one or more other TWT elements.
  • Other TWT elements here may refer to TWT elements that do not include the r-TWT service information field, without limitation.
  • the AP sends a broadcast management frame.
  • the first type of STA receives broadcast management frames from the AP.
  • the second type of STA receives broadcast management frames from the AP.
  • Non-HT non-high throughput
  • the first type of STA refers to a legacy station, that is, a legacy STA, which may be a STA that does not support the 802.11be standard but supports the 802.11 standard before the 802.11be standard, for example, supports 802.11a/b/g/n/ac /ax STA.
  • the broadcast TWT parameter set contained in a TWT element may include the restricted TWT service information field, and the value of the broadcast TWT recommendation field in the request type field of the broadcast TWT parameter set Used to indicate that the TWT type specified in the broadcast TWT parameter set is r-TWT.
  • This request type cannot be understood by legacy STA.
  • the first type of site may be a site that does not understand or cannot identify the r-TWT type.
  • the first type of site may also refer to a site that can functionally ignore a broadcast TWT parameter set containing limited TWT service information, or a site that can ignore a TWT element containing limited TWT service information.
  • “can be ignored” also means that the site does not need to obtain the restricted TWT service information, and therefore does not need to read or parse the broadcast TWT parameter set or TWT element containing the restricted TWT service information.
  • the second type of STA may be an EHT STA, or a STA that supports the 802.11be standard or the 802.11 standard after the 802.11be standard. If the TWT element contains the request type field contained in the broadcast TWT parameter set to indicate that the TWT type specified by the broadcast TWT parameter set is r-TWT, the second type of STA can understand the request type.
  • the first type of STA processes the broadcast management frame.
  • the first type of STA may not parse the first TWT element in the broadcast management frame, or may not parse the first TWT element containing the first broadcast TWT parameter set.
  • the first type of STA does not parse the first TWT element, that is, the first type of STA parses other TWT elements in the broadcast management frame except the first TWT element.
  • the second type of STA processes the broadcast management frame, including parsing the first broadcast TWT parameter set.
  • the first type of STA does not parse the first broadcast TWT parameter set in the first TWT element. That is, when the first type of STA parses one or more TWT elements contained in the broadcast management frame, for the first TWT element, the first type The STA parses other broadcast TWT parameter sets in addition to the first broadcast TWT parameter set.
  • the first TWT element contains a restricted TWT service information domain
  • the STA of the first type to skip the first TWT element (or not parse the first TWT element), or skip the first broadcast TWT parameter set containing the restricted TWT service information field in the first TWT element (or That is, without parsing the first broadcast TWT parameter set), misreading of information in the TWT element (that is, the first TWT element) containing restricted TWT service information can be avoided.
  • this application provides the following solutions 1 to 4, which can prevent the first type of site from misreading the information contained in the first TWT element.
  • the value of the negotiation type field in the TWT element is set to 3.
  • the TWT element carrying the broadcast TWT parameter set in broadcast frames such as beacon frames contains a "negotiation type field", and the value of the negotiation type field is fixed at 2.
  • it is allowed to set the value of the negotiation type field in the TWT element carrying the broadcast TWT parameter set in a broadcast frame such as a beacon frame to 3. That is, if one or more broadcast TWT parameter sets contained in a TWT element carried in the broadcast frame include (or carry) the r-TWT service information field, the AP sets the negotiation type field of the TWT element to 3 .
  • the value of the protocol type field of the first TWT element is set to 3.
  • the TWT element with a value of 2 in the negotiation type field can only be carried in broadcast frames (for example, beacon frames or detection response frames, etc.).
  • broadcast frames for example, beacon frames or detection response frames, etc.
  • the value of the negotiation type field of the TWT element is 2. That is, when the value of the negotiation type field of a TWT element is 2, it means that the TWT element does not contain the r-TWT service information field.
  • the broadcast management frame by allowing the broadcast management frame to set the value of the negotiation type field of the TWT element to 3, it is indicated that the TWT element is a TWT element carrying the r-TWT service information field.
  • the value of the negotiation type field of a TWT element in the broadcast frame can only be 2. If the value of the negotiation type field of a TWT element is 3, legacy STA does not parse the TWT element. Therefore, during the process of parsing the broadcast management frame, if the value of the negotiation type field of the currently processed TWT element is 3, the legacy STA will skip this TWT element and then process the next TWT element. Therefore, by setting the value of the negotiation type field in the first TWT element to 3, the legacy STA can skip the first TWT element to avoid misreading.
  • the broadcast management frame sent by the AP that schedules TWT can be supported to carry a TWT element with a value of 3 in the negotiation type field.
  • a broadcast TWT parameter set corresponds to r-TWT
  • the value of the r-TWT service information presence indication field (restricted TWT traffic info present) contained in the broadcast TWT information field is 1, it means that the broadcast TWT parameter set contains r -TWT service information domain, this broadcast TWT parameter set is the first broadcast TWT parameter set in the embodiment of this application.
  • the first broadcast TWT parameter set will adopt the two 9-byte frame structures proposed by this application, see (a) to (c) of Figure 6 for details.
  • FIG. 6 is a schematic diagram of the frame structure of the extended broadcast TWT parameter set provided by this application.
  • the first broadcast TWT parameter set contains two 9 bytes.
  • the first 9 bytes of the two 9 bytes contains the request type field and the broadcast TWT information field.
  • the request type field contains the broadcast TWT suggestion field, and the value of the broadcast TWT suggestion field is set to a value in the set ⁇ 4,5,6,7 ⁇ .
  • the broadcast TWT information field includes a restricted TWT service information presence indication field, and the value of the restricted TWT service information presence indication field is set to 1.
  • the second 9 bytes of the two 9 bytes contains the first field and the restricted TWT service information field.
  • the first domain is the first 2 bytes of the second 9 bytes
  • the TWT business information domain is restricted to be located after the first domain
  • the first domain contains the second domain
  • the position of the broadcast TWT suggestion field in the first 9-byte request type field is the same
  • the value of the second field is set to a value in the set ⁇ 4,5,6,7 ⁇ .
  • the first broadcast TWT parameter set adopts two 9-byte frame structures.
  • legacy STA parses the first 9 bytes, if the value of the broadcast TWT suggestion field in the request type field is the set ⁇ 4,5,6 , a value in 7 ⁇ , legacy STA does not understand this request type and will skip the first 9 bytes.
  • the value of the broadcast TWT suggestion field contained in the request type field of the i-th broadcast TWT parameter set in a TWT element is ⁇ 4, 5, 6, 7 ⁇ .
  • legacy STA considers each broadcast TWT parameter set to be the existing 9 bytes, so legacy STA will skip 9 bytes. At this time, legacy STA considers that it begins to parse the i+1th broadcast TWT parameter set.
  • the legacy STA will Skip the first 9 bytes of the first broadcast TWT parameter set.
  • the legacy STA parses the second 9 bytes of the first broadcast TWT parameter set, due to the position of the second domain in the first domain, it is different from the position of the broadcast TWT suggestion domain in the first 9 bytes.
  • the position of the request type field in the two 9 bytes is the same, and the value of the second field is also set to a value among ⁇ 4,5,6,7 ⁇ , so that legacy STA regards the second 9 bytes as A broadcast TWT parameter set that does not understand its specified TWT type, thus continuing to skip the second 9 bytes.
  • the second 9 bytes can be further designed, as shown in (b) of Figure 6.
  • the first 9 bytes can have the same structure as the broadcast TWT parameter set in the existing protocol, specifically including a 2-byte request type field, a 1-byte TWT field (that is, the target wake-up time field), A 1-byte minimum TWT wake-up duration field, and a 2-byte broadcast TWT information field.
  • the request type field contains the broadcast TWT suggestion field, which contains 3 bits.
  • the 3 bits are the 8th to 10th bits in the request type field, such as b7 to b9.
  • legacy STA skips the first 9 bytes, it continues to skip the second 9 bytes. Therefore, the second field in the second 9 bytes also contains 3 bits, and these 3 bits are the The 8th to 10th bits in a field.
  • the first field in the second 9 bytes can be the "request type extension field”
  • the second field can be the "ambiguation disambiguation field”
  • the "request type extension field” is 2 bytes.
  • the request type extension field is followed by a 3-byte r-TWT service information field.
  • the last 4 bytes of the second 9 bytes are reserved bytes.
  • the first 9 bytes may also include a TWT field, a minimum TWT field, and a minimum TWT field.
  • the respective lengths of the wake-up duration field and the TWT wake-up interval mantissa field are shown in Figure 6.
  • the value of the broadcast TWT suggestion field in the first 9 bytes can be set to 4, indicating that the TWT type specified by the broadcast TWT parameter set is r-TWT.
  • legacy STA does not understand this request type.
  • this application designs the 8th to 10th bits of the 16 bits of the request type extension field contained in the second 9 bytes of the first broadcast TWT parameter set as the disambiguation domain, and Its value is fixedly set to 4.
  • a value of 4 for this disambiguation field will have the same effect as a value of 4 for the broadcast TWT suggestion field in the first 9 bytes.
  • the legacy STA after receiving the first broadcast TWT parameter set, the value of the broadcast TWT suggestion field in the first 9-byte request type field is 4.
  • legacy STA cannot understand The request class type, therefore, legacy STA intends to skip the first 9 bytes and process the second 9 bytes. Since the value of the disambiguation field in the second 9 bytes is also set to 4, legacy STA will think that this is another broadcast TWT parameter set and the value of the broadcast TWT suggestion field is 4. Since it cannot understand the request type, The legacy STA will continue to skip the second 9 bytes, which will not cause the problem that the starting time of the broadcast TWT parameter set that the legacy STA thinks is inconsistent with the actual starting time, thus avoiding misreading by the legacy STA.
  • the EHT STA when the value of the broadcast TWT suggestion field in a broadcast TWT parameter set is 4, the EHT STA can understand the request type, that is, the EHT STA will learn the request type of the broadcast TWT parameter set.
  • the specified TWT type is r-TWT.
  • the value of the broadcast TWT suggestion field in the first 9 bytes of the first broadcast TWT parameter set may be set to one of 5 to 7.
  • the legacy STA still cannot understand the request type, so it will skip the first 9 bytes and instead parse the second 9 bytes.
  • the value of the disambiguation field of the second 9-byte request type extension field is set to 4, as mentioned above, legacy STA continues to skip the second 9 bytes, thereby achieving the same result as the first implementation above. The effect will not cause misreading of legacy STA.
  • the EHT STA if the value of the broadcast TWT suggestion field of a broadcast TWT parameter set is 4, the EHT STA learns that the TWT type specified by the broadcast TWT parameter set is r-TWT.
  • the value of the broadcast suggestion field of a broadcast TWT parameter set is one of 5 to 7, the EHT STA will learn that the TWT type specified in the broadcast TWT parameter set is r-TWT, and the broadcast TWT parameter set is an extension of Two 9-byte extended broadcast TWT parameter sets, which are the first broadcast TWT parameter set in this application.
  • the value of the first 9-byte broadcast TWT suggestion field in the first broadcast TWT parameter set can be set to any value from 4 to 7, and at the same time, the value of the second 9-byte disambiguation field It can be set to any value from 4 to 7. That is, the value of the first 9-byte broadcast TWT suggestion field belongs to the set ⁇ 4,5,6,7 ⁇ , and at the same time, the value of the second 9-byte disambiguation field also belongs to the set ⁇ 4, 5,6,7 ⁇ .
  • This design can also allow the legacy STA to skip the first 9 bytes of the broadcast TWT parameter set, and then skip the second 9 bytes, without causing misreading by the legacy STA.
  • a TWT element can contain not only TWT service information for legacy STA, but also r-TWT service information for EHT STA, and it will not cause misunderstanding by legacy STA.
  • a TWT element contains at most one broadcast TWT parameter set containing the r-TWT service information field, and the broadcast TWT parameter set containing the r-TWT service information field can only be the last broadcast TWT parameter set of the TWT element, combined with Figure 7 to explain.
  • FIG. 7 is a schematic diagram of the frame structure of the TWT element provided by this application.
  • the TWT element contains a total of n broadcast TWT parameter sets.
  • the first n-1 broadcast TWT parameter sets are not allowed to contain the r-TWT service information field. Only the last broadcast TWT parameter set (that is, the nth broadcast TWT parameter Set) is allowed to contain the r-TWT business information field. That is, the nth broadcast TWT parameter set in Figure 7 is an example of the first broadcast TWT parameter set in this application.
  • the broadcast TWT parameter set n includes the request type field, and the request type field includes the broadcast TWT suggestion field, where the value of the broadcast TWT suggestion field can be set to 4.
  • the value of the broadcast TWT recommendation field is set to 4
  • legacy STA will not be able to understand the broadcast TWT.
  • the TWT type specified by parameter set n therefore 9 bytes will be skipped directly, that is, broadcasting TWT parameter set n will be skipped.
  • the legacy STA Combined with the length indicated by the length field of the TWT element, after the legacy STA skips these 9 bytes, if there is not enough length to broadcast the TWT parameter set later, it will end the parsing of the TWT element, and thus it will not Will cause misreading.
  • solution 3 does not need to modify the frame structure of the TWT element, but only needs to define the framing rules of the TWT element.
  • r-TWT element Introduce a new element type: r-TWT element, and introduce corresponding element identifiers for r-TWT elements. That is, the element identifier of the r-TWT element cannot be understood by legacy STA. Therefore, the legacy STA gives up parsing the r-TWT element, which will not cause the legacy STA to misread the r-TWT element containing the r-TWT business information field.
  • the r-TWT element mentioned in Solution 4 refers to the TWT element containing the r-TWT service information field.
  • the r-TWT element is an example of the first TWT element in this application.
  • the r-TWT element includes the element identification field, the length field and the r-TWT parameter information field.
  • the r-TWT parameter information field may contain one or more r-TWT parameter sets. This application does not focus on the frame structure of the r-TWT parameter set. Those skilled in the art can design the frame structure of the r-TWT parameter set.
  • the r-TWT parameter set can adopt the same frame structure as the broadcast TWT parameter set, without limitation.
  • the r-TWT service information domain may be included in the r-TWT parameter set, for example, r-TWT parameter set 1.
  • Figure 9 is a schematic block diagram of a communication device provided by this application.
  • the communication device 1000 includes a processing unit 1100 , a receiving unit 1200 and a sending unit 1300 .
  • the communication device 1000 may correspond to the access point in the embodiment of the present application.
  • each unit of the communication device 1000 is used to implement the following functions:
  • the processing unit 1100 is used to generate broadcast management frames
  • the broadcast management frame includes a first target wake-up time TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field;
  • the first TWT element meets one of the following:
  • the first TWT element includes a negotiation type field, and the value of the negotiation type field is 3;
  • the first broadcast TWT parameter set contained in the first TWT element includes two 9 bytes, the first 9 bytes of the two 9 bytes includes a request type field and a broadcast TWT information field, and the The request type field includes a broadcast TWT suggestion field.
  • the value of the broadcast TWT suggestion field belongs to the set ⁇ 4, 5, 6, 7 ⁇ .
  • the broadcast TWT information field includes a restricted TWT service information existence indication field.
  • the restricted TWT service The value of the information existence indication field is 1; the second 9 bytes of the two 9 bytes includes the first field and the restricted TWT service information field, and the first field is the second 9 bytes.
  • the first 2 bytes in the bytes, the restricted TWT service information field is located after the first field, the first field contains the second field, the position of the second field in the first field, The position of the broadcast TWT suggestion field in the first 9-byte request type field is the same, and the value of the second field belongs to the set ⁇ 4, 5, 6, 7 ⁇ ;
  • the first broadcast TWT parameter set included in the first TWT element is the last broadcast TWT parameter set in the broadcast TWT parameter set included in the first TWT element, and the first broadcast TWT parameter set includes a request type field.
  • the request type field includes a broadcast TWT suggestion field, and the value of the broadcast TWT suggestion field belongs to the set ⁇ 4,5,6,7 ⁇ ;
  • the sending unit 1300 is configured to send the broadcast management frame.
  • the restricted TWT contained in the second 9 bytes contains 3 bytes
  • the broadcast TWT suggestion field includes 3 bits, and the 3 bits included in the broadcast TWT suggestion field are the 8th bit to the 10th bit in the request type field;
  • the second field includes 3 bits, and the 3 bits included in the second field are the 8th bit to the 10th bit in the first field.
  • the last 4 bytes of the second 9 bytes are reserved bytes.
  • the communication device 1000 corresponds to the access point in the embodiment of the present application.
  • the processing unit 1100 is used to generate broadcast management frames
  • the broadcast management frame includes a first TWT element, the first TWT element includes an element identification field and a restricted TWT parameter information field, and the element identification field is used to identify the first TWT element as containing restricted TWT service information.
  • the TWT element of the domain, the restricted TWT parameter information domain includes the restricted TWT service information domain;
  • the sending unit 1300 is configured to send the broadcast management frame.
  • the communication device 1000 may correspond to the first type of site in the embodiment of the present application.
  • each unit of the communication device 1000 is used to implement the following functions:
  • the receiving unit 1200 is configured to receive broadcast management frames from access points;
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field;
  • the first TWT element also includes a negotiation type field, and the value of the negotiation type field is 3;
  • the processing unit 1100 is used to process the broadcast management frame.
  • processing unit 1100 is used for:
  • the first TWT element is not parsed.
  • the receiving unit 1200 is used for:
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set includes a restricted TWT service information field;
  • the first broadcast TWT parameter set includes two 9 bytes, the first 9 bytes of the two 9 bytes includes a request type field and a broadcast TWT information field, and the request type field includes a broadcast TWT Suggestion field, the value of the broadcast TWT suggestion field belongs to the set ⁇ 4, 5, 6, 7 ⁇ , the broadcast TWT information field includes the restricted TWT service information existence indication field, and the value of the restricted TWT service information existence indication field is The value is 1; the second 9 bytes of the two 9 bytes includes the first field and the restricted TWT service information field, and the first field is the first 2 of the second 9 bytes.
  • the restricted TWT service information field is located after the first field, and the first field includes the second field,
  • the position of the second field in the first field is the same as the position of the broadcast TWT suggestion field in the first 9-byte request type field.
  • the value of the second field Belongs to the set ⁇ 4,5,6,7 ⁇ ;
  • the processing unit 1100 is used to process the broadcast management frame.
  • the restricted TWT service information field contained in the second 9 bytes includes 3 bytes
  • the broadcast TWT suggestion field includes 3 bits
  • the broadcast TWT suggestion field contains The 3 bits included are the 8th bit to the 10th bit in the request type field
  • the second field includes 3 bits, and the 3 bits included in the second field are the 8th bit to the 10th bit in the first field.
  • the last 4 bytes of the second 9 bytes are reserved bytes.
  • processing unit 1100 is used for:
  • the value of the broadcast TWT suggestion field in the first broadcast TWT parameter set contained in the first TWT element belongs to the set ⁇ 4, 5, 6, 7 ⁇ , skip the first 9 byte;
  • the second 9 bytes are skipped.
  • the receiving unit 1200 is used for:
  • the broadcast management frame includes a first TWT element, the first TWT element includes a first broadcast TWT parameter set, and the first broadcast TWT parameter set is the last broadcast TWT parameter set in the first TWT element.
  • the first broadcast TWT parameter set includes a request type field, the request type field includes a broadcast TWT suggestion field, and the value of the broadcast TWT suggestion field belongs to the set ⁇ 4, 5, 6, 7 ⁇ ;
  • the processing unit 1100 is used to process the broadcast management frame.
  • processing unit 1100 is used for:
  • the first broadcast TWT parameter set When the value of the broadcast TWT suggestion field in the first broadcast TWT parameter set belongs to the set ⁇ 4, 5, 6, 7 ⁇ , the first broadcast TWT parameter set is skipped, and the value of the broadcast TWT suggestion field is skipped according to the The length of the first TWT element determines that when the number of bytes or bits after the first broadcast TWT parameter set is insufficient to constitute a broadcast TWT parameter set, the parsing of the first TWT element is terminated.
  • the receiving unit 1200 is used for:
  • the broadcast management frame includes a first TWT element, the first TWT element includes an element identification field and a restricted TWT parameter information field, and the element identification field is used to indicate the
  • the first TWT element is a TWT element containing a restricted TWT service information field, and the restricted TWT parameter information field contains the restricted TWT service information field;
  • the processing unit 1100 is used to process the broadcast management frame.
  • processing unit 1100 is used for:
  • the one or more limiting TWT elements are not parsed based on the element identification of the first TWT element.
  • the receiving unit 1200 and the sending unit 1300 can also be integrated into a transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.
  • the processing unit 1100 is configured to perform processing and/or operations implemented internally by the access point in addition to actions of sending and receiving.
  • the receiving unit 1200 is configured to perform the receiving action of the access point, and the sending unit 1300 is configured to perform the sending action of the access point.
  • the processing unit 1100 is configured to perform step 510
  • the sending unit 1300 is configured to perform the sending action of step 520 .
  • the processing unit 1100 is configured to perform processing and/or operations implemented internally by the first type of station in addition to the actions of sending and receiving.
  • the receiving unit 1200 is configured to perform the receiving action of the first type of station, and the sending unit 1300 is configured to perform the sending action of the first type of station.
  • the receiving unit 1200 is configured to perform the receiving action of step 520
  • the processing unit 1100 is configured to perform step 530 .
  • Figure 10 is a schematic structural diagram of a communication device provided by this application.
  • the communication device 10 includes: one or more processors 11 , one or more memories 12 and one or more communication interfaces 13 .
  • the processor 11 is used to control the communication interface 13 to send and receive signals
  • the memory 12 is used to store a computer program
  • the processor 11 is used to call and run the computer program from the memory 12, so that the communication device 10 executes the method described in the embodiments of the present application. Processing performed by an access point or type 1 station.
  • the processor 11 may have the functions of the processing unit 1100 shown in FIG. 9
  • the communication interface 13 may have the functions of the receiving unit 1200 and/or the sending unit 1300 shown in FIG. 9 .
  • the processor 11 may be used to perform processing or operations performed internally by the communication device
  • the communication interface 13 may be used to perform operations of sending and/or receiving of the communication device.
  • the communication device 10 may be an access point in the method embodiment.
  • the communication interface 13 may be a transceiver of the access point.
  • a transceiver may include a receiver and/or a transmitter.
  • the processor 11 may be a baseband device of an access point, and the communication interface 13 may be a radio frequency device.
  • the communication device 10 may be a chip (or chip system) installed in the access point.
  • communication interface 13 may be an interface circuit or an input/output interface.
  • the communication device 10 may be a first type of station in the method embodiment.
  • the communication interface 13 may be a transceiver of a first type of station.
  • a transceiver may include a receiver and/or a transmitter.
  • the processor 11 may be a baseband device of the first type of site, and the communication interface 13 may be a radio frequency device.
  • the communication device 10 may be a chip (or chip system) installed in a first type of site.
  • communication interface 13 may be an interface circuit or an input/output interface.
  • the dotted box behind the device indicates that there can be more than one device.
  • the present application also provides a computer-readable storage medium.
  • Computer instructions are stored in the computer-readable storage medium.
  • the steps executed by the access point in each method embodiment of the present application are Operations and/or processing are performed.
  • This application also provides a computer-readable storage medium.
  • Computer instructions are stored in the computer-readable storage medium.
  • the methods executed by the first type of site in each method embodiment of the application are Operations and/or processing are performed.
  • this application also provides a computer program product.
  • the computer program product includes computer program code or instructions.
  • the operations performed by the access point in each method embodiment of the application are performed. /or processing is performed.
  • the computer program product includes computer program code or instructions.
  • the operations and/or processes performed by the first type of site in each method embodiment of the present application are performed.
  • the present application also provides a chip.
  • the chip includes a processor.
  • a memory used to store a computer program is provided independently of the chip.
  • the processor is used to execute the computer program stored in the memory so that a communication device equipped with the chip Perform the operations and/or processing performed by the access point in any method embodiment.
  • the chip may also include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit, etc.
  • the chip may further include the memory.
  • the application also provides a chip.
  • the chip includes a processor.
  • a memory used to store computer programs is provided independently of the chip.
  • the processor is used to execute the computer program stored in the memory, so that the communication device installed with the chip executes any arbitrary operation. Operations and/or processes performed by a first type of site in one method embodiment.
  • the chip may also include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit, etc.
  • the chip may further include the memory.
  • processors there may be one or more processors, one or more memories, and one or more memories.
  • the present application also provides a communication device (for example, it can be a chip or a chip system), including a processor and a communication interface.
  • the communication interface is used to receive (or input) data and/or information, and will receive The data and/or information is transmitted to the processor, the processor processes the data and/or information, and the communication interface is also used to output (or be referred to as output) the data and/or information processed by the processor. or information to enable the operations and/or processing performed by the access point in any method embodiment to be performed.
  • the present application also provides a communication device (for example, it can be a chip or a chip system), including a processor and a communication interface.
  • the communication interface is used to receive (or input) data and/or information, and transfer the received Data and/or information are transmitted to the processor, the processor processes the data and/or information, and the communication interface is also used to output (or referred to as output) the data and/or information processed by the processor. , so that the operations and/or processing performed by the first type of site in any method embodiment are performed.
  • the present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute a computer program or instructions stored in the at least one memory, The communication device is caused to perform the operations and/or processing performed by the access point in any method embodiment.
  • the present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute a computer program or instructions stored in the at least one memory, so that the The communication device performs the operations and/or processes performed by the first type of station in any method embodiment.
  • this application also provides a wireless communication system, including the access point and/or the first type of station in the method embodiment of this application.
  • the second type of site in the method embodiment may also be included.
  • the processor in the embodiment of the present application may be an integrated circuit chip and has the ability to process signals. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or a field programmable gate array (field programmable gate array).
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the steps of the methods disclosed in the embodiments of the present application can be directly implemented by a hardware encoding processor, or executed by a combination of hardware and software modules in the encoding processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the methods provided by the above embodiments can be implemented in whole or in part through software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product may include one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • numbers such as “first” and “second” are used in the embodiments of the present application to distinguish identical or similar items with basically the same functions and effects.
  • type 1 sites and type 2 sites are merely used to distinguish two types of sites that describe different applicable standards.
  • numbers such as “first” and “second” do not limit the quantity. That is, in practical applications, there may be one or more sites of the first type, and there may also be one or more sites of the second type.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disk or optical disk and other media that can store program code. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé d'envoi d'informations et un procédé de réception d'informations, qui peuvent être appliqués à un système WLAN prenant en charge une famille de protocoles IEEE 802.11, tels que 802.11be/Wi-Fi 7, Wi-Fi 8, EHT ou un protocole de prochaine génération. Par modification de la valeur du domaine de type de négociation d'un élément TWT, ou par extension d'un ensemble de paramètres TWT de diffusion et conception de certains domaines ou valeurs de ceux-ci dans l'ensemble de paramètres TWT de diffusion étendu, ou par spécification du nombre et de la position de l'ensemble de paramètres TWT de diffusion comprenant des informations de service TWT restreintes dans un élément TWT, ou par introduction d'un nouveau type d'élément et d'un identifiant d'élément pour identifier le type d'élément, le transport d'un domaine d'informations de service TWT restreint dans une trame de gestion de diffusion est pris en charge, et la mauvaise lecture d'informations dans l'élément TWT par une station classique provoquée par le transport du domaine d'informations de service TWT restreint dans la trame de gestion de diffusion est évitée.
PCT/CN2023/084800 2022-03-31 2023-03-29 Procédé d'envoi d'informations, procédé de réception d'informations et appareil de communication WO2023185948A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210335667.1 2022-03-31
CN202210335667.1A CN116938386A (zh) 2022-03-31 2022-03-31 发送信息和接收信息的方法以及通信装置

Publications (1)

Publication Number Publication Date
WO2023185948A1 true WO2023185948A1 (fr) 2023-10-05

Family

ID=88199340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/084800 WO2023185948A1 (fr) 2022-03-31 2023-03-29 Procédé d'envoi d'informations, procédé de réception d'informations et appareil de communication

Country Status (2)

Country Link
CN (1) CN116938386A (fr)
WO (1) WO2023185948A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113645017A (zh) * 2020-04-27 2021-11-12 华为技术有限公司 无线局域网中的信道指示方法及相关装置
US20220070772A1 (en) * 2020-08-28 2022-03-03 Qualcomm Incorporated Low-latency enhancements for a wireless network
US20220078844A1 (en) * 2020-09-09 2022-03-10 Qualcomm Incorporated Scheduling wireless stations within a target wake time service period
WO2022051311A1 (fr) * 2020-09-01 2022-03-10 Intel Corporation Appareil, système et procédé de communication sans fil avancée
WO2022263610A1 (fr) * 2021-06-18 2022-12-22 Canon Kabushiki Kaisha Gestion d'équité à faible latence

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113645017A (zh) * 2020-04-27 2021-11-12 华为技术有限公司 无线局域网中的信道指示方法及相关装置
US20220070772A1 (en) * 2020-08-28 2022-03-03 Qualcomm Incorporated Low-latency enhancements for a wireless network
WO2022051311A1 (fr) * 2020-09-01 2022-03-10 Intel Corporation Appareil, système et procédé de communication sans fil avancée
US20220078844A1 (en) * 2020-09-09 2022-03-10 Qualcomm Incorporated Scheduling wireless stations within a target wake time service period
WO2022263610A1 (fr) * 2021-06-18 2022-12-22 Canon Kabushiki Kaisha Gestion d'équité à faible latence

Also Published As

Publication number Publication date
CN116938386A (zh) 2023-10-24

Similar Documents

Publication Publication Date Title
EP3972170B1 (fr) Procédé de communication multi-liaison et dispositif associé
US10129930B2 (en) Multiple basic service set identifier (BSSID) indication
TWI574574B (zh) 相容傳統型控制訊框
EP2793448B1 (fr) Procédé, dispositif et système pour l'utilisation d'une adresse courte dans des reseaux de communication de donnees sans fil
US10863578B2 (en) Data transmission method, device and system
WO2017097066A1 (fr) Procédé et dispositif de transmission de trame de déclenchement dans un réseau local sans fil
US20100177657A1 (en) Method of medium access control in wireless lan system using multiple channels
EP3755102B1 (fr) Appareil et procédé d'indication de ressources basée sur des segments temporels multiples
EP3737160B1 (fr) Procédé d'acquisition d'informations système, dispositif terminal et dispositif de réseau
WO2023185948A1 (fr) Procédé d'envoi d'informations, procédé de réception d'informations et appareil de communication
WO2018120156A1 (fr) Procédé et appareil permettant d'envoyer des informations système, procédé et appareil permettant de recevoir des informations système
WO2022068457A1 (fr) Procédé de transmission d'informations et dispositif de communication
WO2018177422A1 (fr) Procédé d'accès, station et point d'accès
WO2018121220A1 (fr) Procédé de transmission d'informations système, terminal d'utilisateur et nœud de transmission
WO2020087541A1 (fr) Procédé et dispositif de transmission d'informations de commande de liaison descendante
US20210410004A1 (en) Signaling transmission method and device, signaling receiption method and device, storage medium and terminal
EP4277432A2 (fr) Réduction de latence de plan de commande dans un réseau de communication sans fil
WO2022089643A1 (fr) Procédé d'ajustement d'un paramètre d'accès à un canal distribué amélioré d'une application en temps réel, et dispositif de communication
WO2017113989A1 (fr) Procédé et appareil permettant de transmettre une trame dans un réseau local sans fil
WO2024078593A1 (fr) Procédé de communication et appareil de communication
WO2023131319A1 (fr) Procédé de détermination d'avance temporelle et appareil associé
US11457407B2 (en) Reliable multicast/broadcast transmission scheme
WO2023222072A1 (fr) Procédé d'accès à un canal et dispositif associé
WO2021146963A1 (fr) Procédé et appareil pour la transmission d'un préambule d'accès aléatoire
WO2023116354A1 (fr) Procédé et appareil de communication, dispositifs associés et support de stockage

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: 23778313

Country of ref document: EP

Kind code of ref document: A1