WO2022148250A1 - Point d'accès à débit extrêmement élevé, station à débit extrêmement élevé et procédé de communication sans fil - Google Patents

Point d'accès à débit extrêmement élevé, station à débit extrêmement élevé et procédé de communication sans fil Download PDF

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Publication number
WO2022148250A1
WO2022148250A1 PCT/CN2021/141126 CN2021141126W WO2022148250A1 WO 2022148250 A1 WO2022148250 A1 WO 2022148250A1 CN 2021141126 W CN2021141126 W CN 2021141126W WO 2022148250 A1 WO2022148250 A1 WO 2022148250A1
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Prior art keywords
eht
trigger frame
stas
subfield
sta
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PCT/CN2021/141126
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English (en)
Inventor
Lei Huang
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Guangdong Oppo Mobile Telecommunications Corp., Ltd.
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Publication of WO2022148250A1 publication Critical patent/WO2022148250A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2603—Signal structure ensuring backward compatibility with legacy system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present disclosure relates to the field of communication systems, and more particularly, to an extremely high throughput (EHT) access point (AP) , an EHT station (STA) , and a wireless communication method, which can provide a good communication performance and/or provide high reliability.
  • EHT extremely high throughput
  • AP access point
  • STA EHT station
  • wireless communication method which can provide a good communication performance and/or provide high reliability.
  • a wireless network for example a wireless local area network (WLAN) , such as a Wi-Fi (institute of electrical and electronics engineers (IEEE) 802.11) network may include an access point (AP) that may communicate with one or more stations (STAs) or mobile devices.
  • WLAN wireless local area network
  • IEEE institute of electrical and electronics engineers
  • the WLAN enables a user to wirelessly access an internet based on radio frequency technology in a home, an office, or a specific service area using a portable terminal such as a personal digital assistant (PDA) , a laptop computer, a portable multimedia player (PMP) , a smartphone, etc.
  • the AP may be coupled to a network, such as the internet, and may enable a mobile device to communicate via the network (or communicate with other devices coupled to the AP) .
  • a wireless device may communicate with a network device bi-directionally.
  • a STA may communicate with an associated AP via downlink and uplink.
  • the downlink may refer to a communication link from the AP to the STA
  • the uplink may refer to a communication link from the STA to the AP.
  • WLAN devices supporting the IEEE 802.11ax high efficiency (HE) WLAN standard that provide high performance relative to WLAN devices supporting the legacy IEEE 802.11g/n/ac standard
  • HE IEEE 802.11ax high efficiency
  • a WLAN system supporting higher performance is required due to WLAN users' increased use of high volume content such as a ultra-high definition video.
  • a conventional WLAN system has aimed at increase of bandwidth and improvement of a peak transmission rate, actual users thereof could not feel drastic increase of such performance.
  • EHT extremely high throughput
  • the EHT WLAN aims at achieving extremely high throughput and/or improving performance felt by users demanding high-capacity, high-rate services while supporting simultaneous access of numerous stations in an environment in which a plurality of APs is densely deployed and coverage areas of APs overlap.
  • IEEE 802.11ax HE WLAN supports a bandwidth (BW) up to 160 MHz and supports the number of spatial streams in a multi-user multiple input multiple output (MU-MIMO) transmission up to 8.
  • BW bandwidth
  • MU-MIMO multi-user multiple input multiple output
  • IEEE 802.11be EHT WLAN extends maximum BW support from 160 MHz to 320 MHz and extends the support of maximum number of spatial streams in a MU-MIMO transmission from 8 to 16.
  • it is expected that HE STAs will exist with EHT STAs in a same EHT BSS.
  • IEEE 802.11be EHT WLAN for facilitating orthogonal frequency division multiple access (OFDMA) transmission and non-OFDMA MU-MIMO transmission, a trigger based (TB) sounding procedure needs to be executed between an EHT AP and two or more STAs.
  • TB trigger based
  • EHT extremely high throughput
  • STA EHT station
  • AP extremely high throughput
  • STA EHT station
  • wireless communication method which can solve issues in the prior art, reduce implementation complexity in TB sounding, achieve extremely high throughput, provide good communication performance, and/or provide high reliability.
  • An object of the present disclosure is to propose an extremely high throughput (EHT) access point (AP) , an EHT station (STA) , and a wireless communication method, which can solve issues in the prior art, reduce implementation complexity in TB sounding, achieve extremely high throughput, provide good communication performance, and/or provide high reliability.
  • EHT extremely high throughput
  • a wireless communication method comprises performing a trigger based (TB) sounding procedure, by an extremely high throughput (EHT) access point (AP) , wherein the TB sounding procedure comprises a high efficiency (HE) TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between the EHT AP and stations (STAs) comprising at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising EHT STAs only.
  • EHT trigger based
  • a wireless communication method comprises performing a trigger based (TB) sounding procedure, by an extremely high throughput (EHT) station (STA) , wherein the TB sounding procedure comprises a high efficiency (HE) TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between an EHT access point (AP) and stations (STAs) comprising the EHT STA and at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising the EHT STA and no any HE STAs.
  • EHT trigger based
  • an extremely high throughput (EHT) access point comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to perform a trigger based (TB) sounding procedure, wherein the TB sounding procedure comprises a high efficiency (HE) TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between the EHT AP and stations (STAs) comprising at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising EHT STAs only.
  • TB trigger based
  • an extremely high throughput (EHT) station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to perform a trigger based (TB) sounding procedure, wherein the TB sounding procedure comprises a high efficiency (HE) TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between an EHT access point (AP) and STAs comprising the EHT STA and at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising the EHT STA and no any HE STAs.
  • a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.
  • a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.
  • a computer readable storage medium in which a computer program is stored, causes a computer to execute the above method.
  • a computer program product includes a computer program, and the computer program causes a computer to execute the above method.
  • a computer program causes a computer to execute the above method.
  • FIG. 1 is a schematic diagram illustrating an example extremely high throughput (EHT) trigger based (TB) sounding procedure executed between an EHT access point (AP) and two EHT stations (STAs) according to an embodiment of the present disclosure.
  • EHT extremely high throughput
  • TB extremely high throughput trigger based
  • FIG. 2 is a schematic diagram illustrating a trigger frame format according to an embodiment of the present disclosure.
  • FIG. 3A is a schematic diagram illustrating a high efficiency (HE) TB physical layer protocol data unit (PPDU) format according to an embodiment of the present disclosure.
  • HE high efficiency
  • PPDU physical layer protocol data unit
  • FIG. 3B is a schematic diagram illustrating an EHT TB PPDU format according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram illustrating an EHT sounding null data packet (NDP) format according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram illustrating an example of a wireless communications system according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram illustrating an example of a wireless communications system according to another embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram illustrating an example of a wireless communications system according to another embodiment of the present disclosure.
  • FIG. 8 is a block diagram of one or more stations (STAs) and an access point (AP) of communication in a wireless communications system according to an embodiment of the present disclosure.
  • FIG. 9 is a flowchart illustrating a wireless communication method performed by an AP according to an embodiment of the present disclosure.
  • FIG. 10 is a flowchart illustrating a wireless communication method performed by a STA according to another embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram illustrating a first example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to a first embodiment of the present disclosure.
  • FIG. 12A is a schematic diagram illustrating a format of common information field of beamforming report poll (BFRP) trigger frame according to the first embodiment of the present disclosure.
  • BFRP beamforming report poll
  • FIG. 12B is a schematic diagram illustrating a format of HE user information field of BFRP trigger frame according to the first embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram illustrating a second example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to the first embodiment of the present disclosure.
  • FIG. 14A is a schematic diagram illustrating an example format of common information field of EHT BFRP trigger frame according to the first embodiment of the present disclosure.
  • FIG. 14B is a schematic diagram illustrating an example format of EHT user information field of EHT BFRP trigger frame according to the first embodiment of the present disclosure.
  • FIG. 14C is a schematic diagram illustrating an example format of special user information field of EHT BFRP trigger frame according to the first embodiment of the present disclosure.
  • FIG. 15 is a schematic diagram illustrating a first example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to a second embodiment of the present disclosure.
  • FIG. 16 is a schematic diagram illustrating an example format of common information field of enhanced BFRP trigger frame with enhanced trigger frame flag subfield set to 0 according to the second embodiment of the present disclosure.
  • FIG. 17 is a schematic diagram illustrating a second example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to the second embodiment of the present disclosure.
  • FIG. 18 is a schematic diagram illustrating an example format of common information field of enhanced BFRP trigger frame with enhanced trigger frame flag subfield set to 1 according to the second embodiment of the present disclosure.
  • FIG. 19A is a schematic diagram illustrating a first example format of EHT user information field of enhanced BFRP trigger frame according to the second embodiment of the present disclosure.
  • FIG. 19B is a schematic diagram illustrating a second example format of EHT user information field of enhanced BFRP trigger frame according to the second embodiment of the present disclosure.
  • FIG. 19C is a schematic diagram illustrating a third example format of EHT user information field of enhanced BFRP trigger frame according to the second embodiment of the present disclosure.
  • FIG. 20A is a schematic diagram illustrating a first example format of special user information field of enhanced BFRP trigger frame according to the second embodiment of the present disclosure.
  • FIG. 20B is a schematic diagram illustrating a second example format of special user info field of enhanced BFRP trigger frame according to the second embodiment of the present disclosure.
  • FIG. 21 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.
  • EHT extremely high throughput
  • WLAN wireless local area network
  • BW bandwidth
  • STAs high efficiency stations
  • BSS basic service set
  • a trigger based (TB) sounding procedure needs to be executed between an EHT AP and two or more STAs.
  • OFDMA orthogonal frequency division multiple access
  • MU-MIMO multi-user multiple input multiple output
  • FIG. 1 illustrates an example EHT TB sounding procedure executed between an EHT access point (AP) and two EHT stations (STAs) according to an embodiment of the present disclosure.
  • the EHT TB sounding procedure comprises the following steps: transmitting, by the EHT AP, an EHT NDP (null data packet) announcement frame to the EHT STAs such as STA1 and STA2, transmitting, by the EHT AP, an EHT sounding NDP to the EHT STAs, transmitting, by the EHT AP, a trigger frame to the EHT STAs to solicit TB PPDU (physical layer protocol data unit) transmissions from the EHT STAs, and receiving, by the EHT AP, TB PPDUs from the EHT STAs.
  • EHT NDP nuclear data packet
  • FIG. 2 illustrates a trigger frame format according to an embodiment of the present disclosure.
  • the trigger frame format comprises a common information field and a user information list field comprising one or more user information fields.
  • the formats of the common information field and the user information field depend on the type of the trigger frame.
  • FIG. 3A illustrates a HE TB PPDU format according to an embodiment of the present disclosure.
  • FIG. 3B illustrates an EHT TB PPDU format according to an embodiment of the present disclosure.
  • L-STF field, L-LTF field, L-SIG field, RL-SIG field, and HE-SIG-A field are called pre-HE modulated fields while HE-STF field, HE-LTF field, data field, and PE field are called HE modulated fields.
  • L-STF field, L-LTF field, L-SIG field, RL-SIG field, and U-SIG field are called pre-EHT modulated fields while EHT-STF field, EHT-LTF field, data field, and PE field are called EHT modulated fields.
  • Each HE-LTF symbol or EHT-LTF symbol has the same GI duration as each data symbol, which is 0.8 ⁇ s, 1.6 ⁇ s, or 3.2 ⁇ s.
  • the HE-LTF field comprises three types: 1x HE-LTF, 2x HE-LTF, and 4x HE-LTF.
  • the EHT-LTF field comprises three types: 1x EHT-LTF, 2x EHT-LTF, and 4x EHT-LTF.
  • the duration of each 1x HE-LTF/EHT-LTF, 2x HE-LTF/EHT-LTF, or 4x HE-LTF/EHT-LTF symbol without GI is 3.2 ⁇ s, 6.4 ⁇ s, or 12.8 ⁇ s.
  • Each data symbol without GI is 12.8 ⁇ s.
  • the PE field duration of a HE TB PPDU is 0 ⁇ s, 4 ⁇ s, 8 ⁇ s, 12 ⁇ s, or 16 ⁇ s; while the PE field duration of an EHT TB PPDU is 0 ⁇ s, 4 ⁇ s, 8 ⁇ s, 12 ⁇ s, 16 ⁇ s, or 20 ⁇ s.
  • FIG. 4 illustrates an EHT sounding NDP format according to an embodiment of the present disclosure.
  • L-STF field, L-LTF field, L-SIG field, RL-SIG field, U-SIG field, and EHT-SIG field are called pre-EHT modulated fields while EHT-STF field, EHT-LTF field, and PE field are called EHT modulated fields.
  • Each EHT-LTF symbol has a GI duration of 0.8 ⁇ s or 1.6 ⁇ s.
  • the EHT-LTF field comprises two types: 2x EHT-LTF and 4x EHT-LTF.
  • the duration of each 2x EHT-LTF or 4x EHT-LTF symbol without GI is 6.4 ⁇ s or 12.8 ⁇ s.
  • the PE field duration of an EHT sounding NDP is 4 ⁇ s or 8 ⁇ s.
  • the described implementations may be implemented in any device, system, or network that is capable of transmitting and receiving radio frequency (RF) signals according to any of the IEEE 802.11 standards, the standard, code division multiple access (CDMA) , frequency division multiple access (FDMA) , time division multiple access (TDMA) , global system for mobile communications (GSM) , GSM/general packet radio service (GPRS) , enhanced data GSM environment (EDGE) , terrestrial trunked radio (TETRA) , wideband-CDMA (W-CDMA) , evolution data optimized (EV-DO) , 1 ⁇ EV-DO, EV-DO Rev A, EV-DO Rev B, high speed packet access (HSPA) , high speed downlink packet access (HSDPA) , high speed uplink packet access (HSUPA) , evolved high speed
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • GSM global system for mobile communications
  • EDGE enhanced data GSM environment
  • an AP that supports multiple generations of STA may support uplink transmissions in, for example, an EHT wireless communications system.
  • EHT systems also may be referred to as ultra-high throughput (UHT) systems, next generation Wi-Fi systems, or next big thing (NBT) systems, and may support coverage for multiple types of mobile STAs.
  • UHT ultra-high throughput
  • NBT next big thing
  • an AP in an EHT system may provide coverage for EHT STAs, as well as legacy (or HE) STAs.
  • the AP may multiplex EHT STAs and HE STAs in trigger-based uplink transmissions. That is, the AP may operate using techniques to provide backwards compatibility for HE STAs, while providing additional functionality for EHT STAs.
  • the AP may transmit a trigger frame.
  • the trigger frame may be formatted as a legacy trigger frame so that HE STAs may detect and process the trigger frame to determine uplink transmissions.
  • the AP may include resource unit (RU) allocations in the trigger frame.
  • An STA may receive the trigger frame, identify the RU allocation corresponding to that STA, and may transmit an uplink transmission to the AP using the allocated resources.
  • Legacy STAs may support transmitting in a narrower bandwidth (for example, 160 megahertz (MHz) ) than EHT STAs (which may transmit in a 320 MHz bandwidth) .
  • the AP may include an additional indication in the trigger frame for EHT STAs, so that the EHT STAs may identify the bandwidth to use (for example, the legacy bandwidth or the greater EHT bandwidth) .
  • the AP and EHT STAs may use a new EHT RU allocation table when operating in the larger bandwidth.
  • An EHT STA receiving the trigger frame may use a same RU allocation field as HE STAs to determine the RU allocation index, but may use a different table to look up an entry corresponding to the RU allocation index.
  • the AP may include an additional bit in the trigger frame to indicate to EHT STAs whether to use a primary or a secondary 160 MHz portion of the 320 MHz bandwidth.
  • the EHT STAs may use a legacy RU allocation table, which also may include an additional entry corresponding to this wider bandwidth.
  • the AP may order the RU allocations in the trigger frame in increasing order.
  • An EHT STA may parse the user information for multiple STAs, and may sum the allocated resources for each STA preceding the resource allocation for that EHT STA. The EHT STA may determine the resources for transmission based on the sum and the ordering of the allocations.
  • legacy STAs may utilize legacy operations to determine a bandwidth for transmission based on a bandwidth field in the trigger frame. Additionally, if the trigger frame does not indicate the wider EHT bandwidth, an EHT STA may utilize this legacy bandwidth field to determine the resources for transmission.
  • FIG. 5 illustrates an example of a wireless communications system according to an embodiment of the present disclosure.
  • the wireless communications system may be an example of a WLAN 100 (also known as a Wi-Fi network) (such as next generation, next big thing (NBT) , ultra-high throughput (UHT) or EHT Wi-Fi network) configured in accordance with various aspects of the present disclosure.
  • a WLAN 100 also known as a Wi-Fi network
  • next generation, NBT, UHT, and EHT may be considered synonymous and may each correspond to a Wi-Fi network supporting a high volume of space-time-streams.
  • the WLAN 100 may include an AP 10 and multiple associated STAs 20, which may represent devices such as mobile stations, personal digital assistant (PDAs) , other handheld devices, netbooks, notebook computers, tablet computers, laptops, display devices (such as TVs, computer monitors, etc. ) , printers, etc.
  • the AP 10 and the associated stations 20 may represent a basic service set (BSS) or an extended service set (ESS) .
  • the various STAs 20 in the network can communicate with one another through the AP 10.
  • a coverage area 110 of the AP 10 which may represent a basic service area (BSA) of the WLAN 100.
  • An extended network station (not shown) associated with the WLAN 100 may be connected to a wired or wireless distribution system that may allow multiple APs 10 to be connected in an ESS.
  • a STA 20 may be located in the intersection of more than one coverage area 110 and may associate with more than one AP 10.
  • a single AP 10 and an associated set of STAs 20 may be referred to as a BSS.
  • An ESS is a set of connected BSSs.
  • a distribution system (not shown) may be used to connect APs 10 in an ESS.
  • the coverage area 110 of an AP 10 may be divided into sectors (also not shown) .
  • the WLAN 100 may include APs 10 of different types (such as a metropolitan area, home network, etc. ) , with varying and overlapping coverage areas 110.
  • Two STAs 20 also may communicate directly via a direct wireless link 125 regardless of whether both STAs 20 are in the same coverage area 110.
  • Examples of direct wireless links 120 may include Wi-Fi direct connections, Wi-Fi tunneled direct link setup (TDLS) links, and other group connections.
  • STAs 20 and APs 10 may communicate according to the WLAN radio and baseband protocol for physical and media access control (MAC) layers from IEEE 802.11 and versions including, but not limited to, 802.11b, 802.11g, 802.11a, 802.11n, 802.11ac, 802.11ad, 802.11ah, 802.11ax, 802.11ay, etc.
  • MAC media access control
  • peer-to-peer connections or ad hoc networks may be implemented within the WLAN 100.
  • FIG. 6 illustrates an example of a wireless communications system according to another embodiment of the present disclosure.
  • the wireless communications system 200 may be an example of a next generation or EHT Wi-Fi system, and may include an AP 10-a and STAs 20-a and 20-b, and a coverage area 110-a, which may be examples of components described with respect to FIG. 5.
  • the AP 10-a may transmit a trigger frame 210 including an RU allocation table indication 215 on the downlink 205 to the STAs 20.
  • a wireless communications system 200 may be a next generation Wi-Fi system (such as, an EHT system) .
  • wireless communications system 200 may also support multiple communications systems.
  • wireless communications system 200 may support EHT communications and HE communications.
  • the STA 20-a and the STA 20-b may be different types of STAs.
  • the STA 20-a may be an example of an EHT STA
  • the STA 20-b may be an example of an HE STA.
  • the STA 20-b may be referred to as a legacy STA.
  • EHT communications may support a larger bandwidth than legacy communications. For instance, EHT communications may occur over an available bandwidth of 320 MHz, whereas legacy communications may occur over an available bandwidth of 160 MHz. Additionally, EHT communications may support higher modulations than legacy communications. For instance, EHT communications may support 4K quadrature amplitude modulation (QAM) , whereas legacy communications may support 1024 QAM. EHT communications may support a larger number of spatial streams than legacy systems. In one non-limiting illustrative example, EHT communications may support 16 spatial streams, whereas legacy communications may support 8 spatial streams. In some cases, EHT communications may occur a 2.4 GHz channel, a 5 GHz channel, or a 6 GHz channel in unlicensed spectrum.
  • QAM quadrature amplitude modulation
  • AP 10-a may transmit a trigger frame 210 to one or more STAs 20 (such as, STA 20-a and STA 20-b) .
  • the trigger frame may solicit an uplink transmission from the STAs 20.
  • the trigger frame 210 may be received by an EHT STA 20-a and HE STA 20-b.
  • the trigger frame 210 may be configured to solicit an uplink transmission from only HE STAs 20-b.
  • trigger frame 210 may be configured to solicit an uplink transmission from EHT STAs 20-a.
  • the trigger frame 210 may be configured to solicit an uplink transmission from one or more EHT STAs 20-a and one or more HE STAs 20-b.
  • FIG. 7 illustrates an example of a wireless communications system according to another embodiment of the present disclosure.
  • the wireless communications system 300 may be an example of a post-EHT Wi-Fi system, and may include an AP 10-b.
  • AP 10-b may be an example of a post-EHT AP 10.
  • the wireless communications system 300 may include HE STA 20-c, EHT STA 20-d, and post-EHT STA 20-e, and a coverage area 110-b, which may be examples of components described with respect to FIGS. 5 and 6.
  • the AP 10-b may transmit a trigger frame 310 including an RU allocation table indication 315 on the downlink 305 to the STAs 20.
  • STAs 20 may be referred to as clients.
  • an EHT AP 10 may serve both HE STAs 20 and EHT STAs 20.
  • the EHT AP 10 may send a trigger frame that may trigger a response from HE STAs 20 only, from EHT STAs 20 only, or from both HE STAs 20 and EHT STAs 20.
  • STAs 20 that are scheduled in the trigger frame may respond with TB PPDUs.
  • an EHT AP 10 may trigger HE STAs 20 by sending an HE trigger frame format.
  • an EHT AP 10 may trigger EHT STAs 20 by sending an HE trigger frame format or an HE trigger frame format including some field or bit allocation adjustments.
  • an EHT AP 10 may trigger EHT STAs 20 and HE STAs 20 by sending an HE trigger frame format including some field or bit allocation adjustments.
  • the trigger frame 310 may solicit a response from one or more EHT STAs 20 or one or more HE STAs 20, or both.
  • STAs 20 may not transmit unsolicited uplink transmissions in response to trigger frame 310.
  • trigger frame 310 may solicit an uplink OFDMA transmission or an OFDMA with MU-MIMO transmission.
  • FIG. 8 illustrates one or more STAs 20 and an AP 10 of communication in a wireless communications system 700 according to an embodiment of the present disclosure.
  • the wireless communications system 700 includes an AP 10 and one or more STAs 20.
  • the AP 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12, the transceiver 13.
  • the one or more STAs 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22, the transceiver 23.
  • the processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21.
  • the memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21.
  • the transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.
  • the processor 11 or 21 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device.
  • the memory 12 or 22 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device.
  • the transceiver 13 or 23 may include baseband circuitry to process radio frequency signals.
  • modules e.g., procedures, functions, and so on
  • the modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21.
  • the memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
  • the processor 11 is configured to perform a TB sounding procedure, wherein the TB sounding procedure comprises a HE TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between the EHT AP and STAs comprising at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising EHT STAs only.
  • the TB sounding procedure comprises a HE TB sounding procedure and an EHT TB sounding procedure
  • the HE TB sounding procedure is executed between the EHT AP and STAs comprising at least one HE STA
  • the EHT TB sounding procedure is executed between the EHT AP and STAs comprising EHT STAs only.
  • the processor 21 is configured to perform a TB sounding procedure, wherein the TB sounding procedure comprises a HE TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between an EHT AP and STAs comprising the EHT STA and at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising the EHT STA and no any HE STAs.
  • FIG. 9 illustrates a wireless communication method 800 performed by an EHT AP according to an embodiment of the present disclosure.
  • the method 800 includes: a block 802, performing a TB sounding procedure, by the EHT AP, wherein the TB sounding procedure comprises a HE TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between the EHT AP and STAs comprising at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising EHT STAs only.
  • This can solve issues in the prior art, reduce implementation complexity in TB sounding, achieve extremely high throughput, provide good communication performance, and/or provide high reliability.
  • the EHT TB sounding procedure comprises at least one of the followings: transmitting, by the EHT AP, an EHT NDP announcement frame to the EHT STAs, transmitting, by the EHT AP, an EHT sounding NDP to the EHT STAs, transmitting, by the EHT AP, a trigger frame to the EHT STAs to solicit TB PPDU transmissions from the EHT STAs, and receiving, by the EHT AP, TB PPDUs from the EHT STAs.
  • the TB PPDUs are HE TB PPDUs or EHT TB PPDUs.
  • the EHT AP in the EHT TB sounding procedure, after transmitting the trigger frame by the EHT AP to the EHT STAs, whether the EHT AP receives the HE TB PPDUs or the EHT TB PPDUs from the EHT STAs depends on a setting of a trigger type subfield of a common information field of the trigger frame. In some embodiments, when the trigger type subfield of the common information field of the trigger frame is set to indicate a beamforming report poll (BFRP) variant of the trigger frame, the EHT AP receives the HE TB PPDUs from the EHT STAs. In some embodiments, when the trigger type subfield of the common information field of the trigger frame is set to indicate a new BFRP variant of the trigger frame, the EHT AP receives the EHT TB PPDUs.
  • BFRP beamforming report poll
  • the EHT AP after transmitting the trigger frame by the EHT AP to the EHT STAs, whether the EHT AP receives the HE TB PPDUs or the EHT TB PPDUs from the EHT STAs depends on a setting of a first subfield of a common information field of the trigger frame, the first subfield is different from a trigger type subfield of the common information field of the trigger frame, the trigger type subfield is set to indicate a BFRP variant of the trigger frame and the first subfield is set to indicate whether the trigger frame is an existing trigger frame or an enhanced trigger frame.
  • the EHT AP when the first subfield is set to indicate the existing trigger frame, the EHT AP receives the HE TB PPDUs from the EHT STAs. In some embodiments, when the first subfield is set to indicate the enhanced trigger frame, the EHT AP receives the EHT TB PPDUs from the EHT STAs. In some embodiments, the first subfield comprises an enhanced trigger frame flag subfield.
  • FIG. 10 illustrates a wireless communication method 900 performed by an EHT STA according to an embodiment of the present disclosure.
  • the method 900 includes: a block 902, performing a TB sounding procedure, by the EHT STA, wherein the TB sounding procedure comprises a HE TB sounding procedure and an EHT TB sounding procedure, the HE TB sounding procedure is executed between an EHT AP and STAs comprising the EHT STA and at least one HE STA, the EHT TB sounding procedure is executed between the EHT AP and STAs comprising the EHT STA and no any HE STAs.
  • This can solve issues in the prior art, reduce implementation complexity in TB sounding, achieve extremely high throughput, provide good communication performance, and/or provide high reliability.
  • the EHT TB sounding procedure comprises at least one of the followings: receiving, by the EHT STA, an EHT NDP announcement frame from the EHT AP, receiving, by the EHT STA, an EHT sounding NDP from the EHT AP, receiving, by the EHT STA, a trigger frame from the EHT AP to solicit a TB PPDU transmission from the EHT STA, or transmitting, by the EHT STA, TB PPDU to the EHT AP.
  • the TB PPDU is a HE TB PPDU or an EHT TB PPDU.
  • the EHT STA in the EHT TB sounding procedure, after receiving the trigger frame from the EHT AP, whether the EHT STA transmits the HE TB PPDU or the EHT TB PPDU depends on a setting of a trigger type subfield of a common information field of the trigger frame. In some embodiments, when the trigger type subfield of the common information field of the trigger frame is set to indicate a BFRP variant of the trigger frame, the EHT STA transmits the HE TB PPDU. In some embodiments, when the trigger type subfield of the common information field of the trigger frame is set to indicate a new BFRP variant of the trigger frame, the EHT STA transmits the EHT TB PPDU.
  • the EHT STA in the EHT TB sounding procedure, after receiving the trigger frame from the EHT AP, whether the EHT STA transmits the HE TB PPDU or the EHT TB PPDU depends on a setting of a first subfield of a common information field of the trigger frame, the first subfield is different from a trigger type subfield of the common information field of the trigger frame, the trigger type subfield is set to indicate a BFRP variant of the trigger frame and the first subfield is set to indicate whether the trigger frame is an existing trigger frame or an enhanced trigger frame.
  • the EHT STA when the first subfield is set to indicate the existing trigger frame, transmits the HE TB PPDU.
  • the EHT STA transmits the EHT TB PPDU.
  • the first subfield comprises an enhanced trigger frame flag subfield.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an EHT TB sounding procedure after receiving a trigger frame from an EHT AP, whether two or more EHT STAs transmit HE TB PPDUs or EHT TB PPDUs depends on a trigger type subfield setting of a common information field of the trigger frame.
  • the trigger type subfield of common information field of the trigger frame is set to indicate a BFRP variant of the trigger frame
  • the two or more EHT STAs transmit the HE TB PPDUs.
  • the trigger type subfield of common information field of the trigger frame is set to indicate a new BFRP variant of the trigger frame
  • the two or more EHT STAs transmit the EHT TB PPDUs.
  • FIG. 11 illustrates a first example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to the first embodiment, wherein a trigger type subfield of a common information field of a trigger frame is set to indicate a BFRP variant of the trigger frame, i.e. the trigger frame is a BFRP trigger frame defined in the IEEE 802.11ax standard.
  • FIG. 12A illustrates a format of the common information field of a BFRP trigger frame wherein a trigger type subfield is set to 1 to indicate a BFRP variant of the trigger frame.
  • a BFRP trigger frame comprises a single type of user information field, i.e. HE user information field.
  • FIG. 12B illustrates a format of a HE user information field of a BFRP trigger frame wherein a feedback segment retransmission bitmap subfield indicates requested feedback segments of a HE compressed BF report.
  • the feedback segment retransmission bitmap subfield of any user information field in a BFRP trigger frame shall be set to all ones to indicate all feedback segments are requested when the BFRP trigger frame is transmitted as a part of EHT TB sounding since the EHT AP shall not poll an EHT STA more than once in EHT TB sounding.
  • FIG. 13 illustrates a second example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to the first embodiment, wherein the trigger type subfield of common information field of the trigger frame is set to indicate a new BFRP variant of the trigger frame.
  • the new BFRP variant of the trigger frame may be an EHT BFRP variant of the trigger frame, i.e. the trigger frame is an EHT BFRP trigger frame.
  • a format of a common information field of an EHT BFRP trigger frame is illustrated in FIG. 14A, wherein the trigger type subfield is set to a first value within [8, 15] (e.g.
  • a MU-MIMO EHT-LTF mode subfield is set to 0 to indicate single stream pilot EHT-LTF mode for the solicited EHT TB PPDU
  • the UL STBC (space-time block coding) subfield is set to 0 to indicate no STBC encoding for the solicited EHT TB PPDU. This is because only single stream pilots are supported for EHT-LTF field of EHT TB PPDU and no STBC is supported for EHT TB PPDU.
  • the EHT BFRP trigger frame comprises two types of user information fields, including EHT user information field and special user information field.
  • An example format of EHT user information field of EHT BFRP trigger frame is illustrated in FIG. 14B.
  • the RU allocation subfield of the EHT user information field, together with the PS160 subfield, indicates the RU or MRU at which an EHT TB PPDU is to be transmitted by the EHT STA indicated by the AID12 subfield.
  • the feedback segment retransmission bitmap subfield in the HE user information field of BFRP trigger frame as illustrated in FIG. 12B is not present in the EHT user information field of EHT BFRP trigger frame.
  • the special user information field carries necessary U-SIG subfields of the solicited EHT TB PPDU.
  • the special user info field is located immediately after the common information field in EHT BFRP trigger frame.
  • An example format of special user information field of EHT BFRP trigger frame is illustrated in FIG. 14C, where the AID12 subfield of a user information field is set to a second value (e.g. 2007) to indicate the special user info field.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • an EHT TB sounding procedure after receiving a trigger frame from an EHT AP, whether two or more EHT STAs transmit HE TB PPDUs or EHT TB PPDUs depends on a setting of a subfield other than a trigger type subfield of common information field of the trigger frame wherein the trigger type subfield is set to indicate a BFRP variant of the trigger frame and the subfield indicates whether the trigger frame is an existing trigger frame or an enhanced trigger frame, i.e. the trigger frame is an enhanced BFRP trigger frame.
  • the subfield is set to 0 to indicate an existing trigger frame, and the subfield is set to 1 to indicate an enhanced trigger frame.
  • the two or more EHT STAs transmit the HE TB PPDUs.
  • the subfield is set to indicate an enhanced trigger frame, the two or more EHT STAs transmit the EHT TB PPDUs.
  • the subfield may be an enhanced trigger frame flag subfield.
  • FIG. 15 illustrates a first example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to the second embodiment wherein the subfield (e.g. enhanced trigger frame flag subfield) of the enhanced BFRP trigger frame is set to 0.
  • the example format of common information field of the enhanced BFRP trigger frame with the enhanced trigger frame flag subfield set to 0 according to the second embodiment is illustrated in FIG. 16.
  • the enhanced BFRP trigger frame with the enhanced trigger frame flag subfield set to 0 comprises one or more HE user information field as illustrated in FIG. 12B.
  • FIG. 17 illustrates an example EHT TB sounding procedure executed between an EHT AP and two EHT STAs according to the second embodiment wherein the subfield (e.g. enhanced trigger frame flag subfield) of the enhanced BFRP trigger frame is set to 1.
  • the subfield e.g. enhanced trigger frame flag subfield
  • the example format of common information field of the enhanced BFRP trigger frame with the enhanced trigger frame flag subfield set to 1 according to the second embodiment is illustrated in FIG. 18.
  • An uplink (UL) bandwidth (BW) subfield and an UL spatial reuse subfield are reserved, a MU-MIMO EHT-LTF mode subfield is set to 0 to indicate single stream pilot EHT-LTF mode for the solicited EHT TB PPDU, and an UL STBC subfield is set to 0 to indicate no STBC encoding for the solicited EHT TB PPDU.
  • UL bandwidth information and spatial reuse information of the solicited EHT TB PPDU are carried in the special user information field, only single stream pilots are supported for EHT TB PPDU, and no STBC is supported for EHT PPDU.
  • the enhanced BFRP trigger frame with the enhanced trigger frame flag subfield set to 1 comprises one or more EHT user information field and one special user information field.
  • Three example formats of EHT user information field are illustrated in FIG. 13A to FIG. 13C, respectively.
  • RU allocation subfield and PS160 subfield indicate RU or MRU at which an EHT TB PPDU is to be transmitted by the EHT STA indicated by the AID12 subfield.
  • a feedback segment retransmission bitmap subfield in the HE user information field is not present.
  • the feedback segment retransmission bitmap subfield in the HE user information field is replaced by an 8-bit reserved subfield.
  • the feedback segment retransmission bitmap subfield in the HE user information field is present and set to all ones.
  • the first example of EHT user information field has the least signaling overhead.
  • the special user information field carries necessary U-SIG subfields of the solicited EHT TB PPDU.
  • the special user information field is located immediately after the common information field in enhanced BFRP trigger frame with the enhanced trigger frame flag subfield set to 1.
  • Two example formats of the special user information field are illustrated in FIG. 20A and FIG. 20B.
  • the AID12 subfield of a user information field is set to a second value (e.g. 2007) to indicate the special user information field.
  • the special user information field of second example format has an extra 8-bit reserved subfield.
  • the EHT user information field of first example format shall not be included in a same enhanced BFRP trigger frame as the special user information field of second example format; and the EHT user information field of second or third example format shall not be include in a same enhanced BFRP trigger frame as the special user information field of first example format.
  • a HE TB sounding procedure is executed between an EHT AP and two or more STAs which include at least one HE STA according to the IEEE 802.11ax standard; while an EHT TB sounding procedure is executed between an EHT AP and two or more STAs which include EHT STAs only.
  • an EHT TB sounding procedure executed between an EHT AP and two or more EHT STAs comprises the following steps.
  • the EHT AP transmits an EHT NDP announcement frame to the two or more EHT STAs.
  • the EHT NDP Announcement frame is purposed to start the EHT TB sounding procedure and instruct each of the two or more EHT STAs how to prepare sounding feedback, e.g. compressed BF report.
  • the EHT AP transmits an EHT sounding NDP to the two or more EHT STAs, and each of the two or more EHT STAs determines the sounding feedback from the received EHT sounding NDP according to the instruction in the previously received EHT NDP announcement frame.
  • the EHT AP Upon SIFS after transmitting the EHT sounding NDP, the EHT AP transmits a trigger frame to solicit simultaneous TB PPDU transmissions from the two or more EHT STAs.
  • the trigger frame includes the TB PPDU transmission parameters for each of the two or more EHT STAs.
  • the two or more EHT STAs may prepare TB PPDUs which includes EHT compressed beamforming/CQI (channel quality indicator) frames carrying the respective sounding feedback according to the respective transmission parameters in the received Trigger frame and simultaneously transmit the TB PPDUs to the EHT AP, wherein the TB PPDUs are either HE TB PPDUs or EHT TB PPDUs.
  • EHT compressed beamforming/CQI channel quality indicator
  • Some embodiments of the present disclosure are used by chipset vendors, communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles) , smartphone makers, communication devices for public safety use, AR/VR device maker for example gaming, conference/seminar, education purposes.
  • Some embodiments of the present disclosure are a combination of “techniques/processes” that can be adopted in communication specification and/or communication standards such as IEEE specification and/or to standards create an end product.
  • FIG. 21 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software.
  • FIG. 21 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated.
  • the application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors.
  • the processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.
  • the baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processors may include a baseband processor.
  • the baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry.
  • the radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc.
  • the baseband circuitry may provide for communication compatible with one or more radio technologies.
  • the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN) , a wireless local area network (WLAN) , a wireless personal area network (WPAN) .
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as
  • the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency.
  • baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency.
  • RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the AP or STA may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry.
  • “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC) .
  • SOC system on a chip
  • the memory/storage 740 may be used to load and store data and/or instructions, for example, for system.
  • the memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM) ) , and/or non-volatile memory, such as flash memory.
  • DRAM dynamic random access memory
  • the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system.
  • User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc.
  • Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface.
  • the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system.
  • the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit.
  • the positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
  • GPS global positioning system
  • the display 750 may include a display, such as a liquid crystal display and a touch screen display.
  • the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc.
  • system may have more or less components, and/or different architectures.
  • methods described herein may be implemented as a computer program.
  • the computer program may be stored on a storage medium, such as a non-transitory storage medium.
  • the disclosed system, device, and method in the embodiments of the present disclosure can be realized with other ways.
  • the above-mentioned embodiments are exemplary only.
  • the division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped.
  • the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms.
  • the units as separating components for explanation are or are not physically separated.
  • the units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
  • the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer.
  • the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product.
  • one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product.
  • the software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure.
  • the storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM) , a random access memory (RAM) , a floppy disk, or other kinds of media capable of storing program codes.

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Abstract

L'invention concerne un point d'accès (AP) à débit extrêmement élevé (EHT), une station (STA) EHT et un procédé de communication sans fil. Le procédé de communication sans fil comprend la réalisation d'une procédure de sondage à base de déclencheur (TB), par l'AP EHT, la procédure de sondage TB comprenant une procédure de sondage TB à rendement élevé (HE) et une procédure de sondage TB EHT, la procédure de sondage TB HE étant exécutée entre l'AP EHT et des STA comprenant au moins une STA HE, la procédure de sondage TB EHT étant exécutée entre l'AP EHT et des STA comprenant uniquement des STA EHT. Cela permet de résoudre les problèmes de l'état de la technique, de réduire la complexité de mise en œuvre dans le sondage TB, d'atteindre un débit extrêmement élevé, d'obtenir de bonnes performances de communication, et/ou d'obtenir une fiabilité élevée.
PCT/CN2021/141126 2021-01-06 2021-12-24 Point d'accès à débit extrêmement élevé, station à débit extrêmement élevé et procédé de communication sans fil WO2022148250A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170265135A1 (en) * 2016-03-09 2017-09-14 Laurent Cariou Station (sta), access point (ap) and method for communication of control information for uplink transmission
CN111279646A (zh) * 2017-10-20 2020-06-12 高通股份有限公司 在基于触发的传输中复用不同代的客户端
US20200288439A1 (en) * 2019-03-04 2020-09-10 Mediatek Singapore Pte. Ltd. Method and apparatus for enhanced preamble punctured ppdu in a wireless network
CN111726203A (zh) * 2019-03-19 2020-09-29 华为技术有限公司 回复确认帧的方法及装置、数据传输系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170265135A1 (en) * 2016-03-09 2017-09-14 Laurent Cariou Station (sta), access point (ap) and method for communication of control information for uplink transmission
CN111279646A (zh) * 2017-10-20 2020-06-12 高通股份有限公司 在基于触发的传输中复用不同代的客户端
US20200288439A1 (en) * 2019-03-04 2020-09-10 Mediatek Singapore Pte. Ltd. Method and apparatus for enhanced preamble punctured ppdu in a wireless network
CN111726203A (zh) * 2019-03-19 2020-09-29 华为技术有限公司 回复确认帧的方法及装置、数据传输系统

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