[go: up one dir, main page]

WO2025146163A1 - Sondage de formation de faisceau coordonné ultra-haute fiabilité dans des communications sans fil - Google Patents

Sondage de formation de faisceau coordonné ultra-haute fiabilité dans des communications sans fil Download PDF

Info

Publication number
WO2025146163A1
WO2025146163A1 PCT/CN2025/070545 CN2025070545W WO2025146163A1 WO 2025146163 A1 WO2025146163 A1 WO 2025146163A1 CN 2025070545 W CN2025070545 W CN 2025070545W WO 2025146163 A1 WO2025146163 A1 WO 2025146163A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
receiving
address
stas
channel state
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2025/070545
Other languages
English (en)
Inventor
Kai Ying LU
Shuling Feng
Jianhan Liu
Ping-Chen Lin
Huai-Yan FENG
Weisung Tsao
James Chih-Shi Yee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MediaTek Inc
Original Assignee
MediaTek Inc
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 MediaTek Inc filed Critical MediaTek Inc
Publication of WO2025146163A1 publication Critical patent/WO2025146163A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming

Definitions

  • the present disclosure is generally related to wireless communications and, more particularly, to ultra-high-reliable (UHR) coordinated beamforming (CBF) sounding in wireless communications.
  • UHR ultra-high-reliable
  • CBF coordinated beamforming
  • CBF is proposed as one of several coordinated multi-access point (multi-AP or MAP) transmission schemes for the next-generation WLAN.
  • the MAP-CBF scheme allows multiple access points (APs) to transmit signals to stations (STAs) simultaneously on the same frequency band.
  • the scheme intends to reduce interferences at STAs from other APs.
  • each AP beamforms its transmission signal towards its targeted STA (s) and nulls transmission signal (s) towards STAs targeted by other APs.
  • FIG. 1 is a diagram of an example network environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • FIG. 1 illustrates an example network environment 100 in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • FIG. 2 -FIG. 7 illustrate examples of implementation of various proposed schemes in network environment 100 in accordance with the present disclosure. The following description of various proposed schemes is provided with reference to FIG. 1 -FIG. 7.
  • MAP-CBF may be applied when certain conditions are met.
  • One condition may be that the sharing AP has enough information about the intended recipients (e.g., STAs) of the shared AP’s transmission (e.g., based on updated sounding feedback information from the intended recipient (s) of shared AP, shared APs’ intended recipient identification (s) ) .
  • Another condition may be that the sharing AP’s transmission will impose strong interference on the intended recipients (e.g., STAs) of the shared AP.
  • AP1 may initiate the sounding sequence by transmitting an NDPA frame to poll the candidate STAs (e.g., STA1 and STA2) associated with AP1 and to poll AP2 to participate in the sounding sequence by soliciting AP2 to transmit a training signal.
  • AP2 may transmit a Null Data Packet (NDP) as the training signal a short interframe space (SIFS) after AP1’s NDPA to participate in the sounding sequence.
  • AP1 may transmit a BFRP frame to poll beamforming/channel state information report based on measuring the channel using the training signal transmitted by AP2 from each of STA1 and STA2.
  • AP2 may decode the BFRP frame from AP1 to obtain trigger-based BFR frame transmission parameters.
  • AP2 may transmit a frame (e.g., sounding request or initial control response frame) to solicit or respond to AP1’s initial control frame to request or confirm its intention to participate in a sounding sequence initiated by AP2.
  • the frame e.g., sounding request or initial control response frame
  • the frame sent by AP2 may have the TA address set to MAC address affiliated with AP2 and the Receiver Address (RA) set to MAC address affiliated with AP1.
  • the frame (e.g., sounding request or initial control response frame) sent by AP2 may indicate its selected candidate STAs associated with AP1.
  • AP1 may transmit a BFRP frame a SIFS after NDP to poll a beamforming/channel state information report based on measuring the channel using the NDP transmitted by AP2 from STA1 and STA2. For instance, AP1 may set the TA of the BFRP to MAC address affiliated with AP1 and set the RA of the BFRP to the broadcast MAC address.
  • the BFRP frame may include the IDs of STA1 and STA2 in the STA/User Info fields corresponding to STA1 and STA2 respectively so as to trigger each of STA1 and STA2 to feedback a measurement (e.g., beamforming and/or channel state information (CSI) ) report.
  • CSI channel state information
  • Each of STA1 and STA2 may transmit a BFR frame, respectively, in response to the BFRP frame transmitted by its associated AP (AP1) .
  • STA1 may set the TA of its BFR frame to its MAC address and set the RA to MAC address affiliated with AP1.
  • STA2 may set the TA of its BFR frame to its MAC address and the RA to MAC address affiliated with AP1.
  • AP1 may receive and decode the BFR frames from STA1 and STA2 on the resource unit (s) allocated to STA1 and STA2, respectively.
  • AP2 may decode the BFRP frame sent by AP1 to obtain trigger-based BFR frame transmission parameters (e.g., resource allocation for STA1 and STA2 in a trigger-based BFR PPDU) and monitor to decode the BFR frames from STA1 and STA2.
  • trigger-based BFR frame transmission parameters e.g., resource allocation for STA1 and STA2 in a trigger-based BFR PPDU
  • FIG. 4 illustrates an example scenario 400 under a proposed scheme in accordance with the present disclosure.
  • Scenario 400 may pertain to a CBF sounding sequence for an AP towards STAs of another AP.
  • AP1 may transmit a UHR NDPA which carries an UHR STA Info list with each STA identified by its associated AP’s index plus STA AID.
  • AP1 may initiate the sounding sequence by transmitting a UHR NDPA for both its associated (UHR) STAs and/or AP2’s associated (UHR) STAs.
  • AP1 may set the TA field of the NDPA to MAC address affiliated with AP1 in the UHR NDPA sounding announcement frame and Beamforming Report Poll (BFRP) frame.
  • BFRP Beamforming Report Poll
  • the NDPA frame may indicate the sounding request/type is for coordinated (CBF) sounding.
  • the NDPA may carry AP2’s STA Info list with each STA of AP2 identified by AP2’s ID/index plus STA AID.
  • AP1 may transmit an NDP a SIFS after the NDPA frame.
  • the identified candidate STAs associated with AP2 may process/measure the NDP transmitted by AP1 and, in response, report a sounding feedback in a Beamforming Report (BFR) frame with the RA field set to the BSSID (e.g., MAC address) affiliated with AP1, which may be indicated in the TA field of the BFRP frame transmitted by AP1.
  • BFR Beamforming Report
  • AP1 may monitor to receive and decode the BFR frame from each of STA1 and STA2 associated with AP2.
  • both a sharing AP and a shared AP may perform coordinated (CBF) sounding to each other’s associated STAs.
  • the shared AP may follow the same proposed schemes to sound the candidate STAs of the sharing AP.
  • the sharing AP and shared AP may exchange the AID information of candidate STAs of each other.
  • the sharing AP may request the shared AP to provide the AIDs of the candidate STAs that are associated with the shared AP.
  • the shared AP may request the sharing AP to provide the AIDs of the candidate STAs that are associated with the sharing AP.
  • FIG. 5 illustrates an example system 500 having at least an example apparatus 510 and an example apparatus 520 in accordance with an implementation of the present disclosure.
  • apparatus 510 and apparatus 520 may perform various functions to implement schemes, techniques, processes, and methods described herein pertaining to UHR CBF sounding in wireless communications, including the various schemes described above with respect to various proposed designs, concepts, schemes, systems and methods described above as well as processes described below.
  • apparatus 510 may be implemented in an AP STA (e.g., AP1) and apparatus 520 may be implemented in another AP (e.g., AP2) , or vice versa.
  • AP STA e.g., AP1
  • apparatus 520 may be implemented in another AP (e.g., AP2) , or vice versa.
  • Each of apparatus 510 and apparatus 520 may be a part of an electronic apparatus, such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus.
  • each of apparatus 510 and apparatus 520 may be implemented in a smartphone, a smart watch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer.
  • Each of apparatus 510 and apparatus 520 may also be a part of a machine type apparatus, which may be an IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus.
  • each of apparatus 510 and apparatus 520 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker, or a home control center.
  • apparatus 510 and/or apparatus 520 may be implemented in a network node, such as an AP in a WLAN or a mesh device.
  • each of apparatus 510 and apparatus 520 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors.
  • IC integrated-circuit
  • RISC reduced-instruction set computing
  • CISC complex-instruction-set-computing
  • each of apparatus 510 and apparatus 520 may be implemented in or as a STA or an AP.
  • Each of apparatus 510 and apparatus 520 may include at least some of those components shown in FIG. 5 such as a processor 512 and a processor 522, respectively, for example.
  • each of processor 512 and processor 522 may be implemented in the form of one or more single-core processors, one or more multi-core processors, one or more RISC processors or one or more CISC processors. That is, even though a singular term “aprocessor” is used herein to refer to processor 512 and processor 522, each of processor 512 and processor 522 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 512 and processor 522 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure.
  • each of processor 512 and processor 522 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including those pertaining to UHR CBF sounding in wireless communications in accordance with various implementations of the present disclosure.
  • apparatus 510 may also include a transceiver 516 coupled to processor 512.
  • Transceiver 516 may include a transmitter capable of wirelessly transmitting and a receiver capable of wirelessly receiving data.
  • apparatus 520 may also include a transceiver 526 coupled to processor 522.
  • Transceiver 526 may include a transmitter capable of wirelessly transmitting and a receiver capable of wirelessly receiving data.
  • transceiver 516 and transceiver 526 are illustrated as being external to and separate from processor 512 and processor 522, respectively, in some implementations, transceiver 516 may be an integral part of processor 512 as a system on chip (SoC) and/or transceiver 526 may be an integral part of processor 522 as a SoC.
  • SoC system on chip
  • apparatus 510 may further include a memory 514 coupled to processor 512 and capable of being accessed by processor 512 and storing data therein.
  • apparatus 520 may further include a memory 524 coupled to processor 522 and capable of being accessed by processor 522 and storing data therein.
  • RAM random-access memory
  • DRAM dynamic RAM
  • SRAM static RAM
  • T-RAM thyristor RAM
  • Z-RAM zero-capacitor RAM
  • each of memory 514 and memory 524 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and/or electrically erasable programmable ROM (EEPROM) .
  • ROM read-only memory
  • PROM programmable ROM
  • EPROM erasable programmable ROM
  • EEPROM electrically erasable programmable ROM
  • each of memory 514 and memory 524 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and/or phase-change memory.
  • NVRAM non-volatile random-access memory
  • Each of apparatus 510 and apparatus 520 may be a communication entity capable of communicating with each other using various proposed schemes in accordance with the present disclosure.
  • a description of capabilities of apparatus 510 or apparatus 520, as an AP (e.g., AP1 or AP2) , respectively, is provided below in the context of example processes 600 and 700.
  • AP e.g., AP1 or AP2
  • FIG. 6 illustrates an example process 600 in accordance with an implementation of the present disclosure.
  • Process 600 may represent an aspect of implementing various proposed designs, concepts, schemes, systems, and methods described above. More specifically, process 600 may represent an aspect of the proposed concepts and schemes pertaining to UHR CBF sounding in wireless communications.
  • Process 600 may include one or more operations, actions, or functions as illustrated by one or more of blocks 610, 620 and 630. Although illustrated as discrete blocks, various blocks of process 600 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks/sub-blocks of process 600 may be executed in the order shown in FIG. 6 or, alternatively, in a different order.
  • Process 600 may be implemented by or in apparatus 510 and apparatus 520 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 600 is described below in the context of apparatus 510 implemented in or as an AP STA (e.g., AP1) and apparatus 520 implemented in or as another AP STA (e.g., AP2) of a wireless network such as a WLAN in network environment 100 in accordance with one or more of IEEE 802.11 standards. Process 600 may begin at block 610.
  • AP STA e.g., AP1
  • apparatus 520 implemented in or as another AP STA (e.g., AP2) of a wireless network such as a WLAN in network environment 100 in accordance with one or more of IEEE 802.11 standards.
  • Process 600 may begin at block 610.
  • process 600 may involve processor 512 of apparatus 510, as a first AP (AP1) , initiating, via transceiver 516, a sounding sequence by transmitting a first frame to a second AP (e.g., apparatus 520 as AP2) and one or more candidate STAs associated with the first AP to solicit a training signal from the second AP and to request the one or more candidate STAs to feedback channel state information.
  • AP1 a first AP
  • a second AP e.g., apparatus 520 as AP2
  • candidate STAs associated with the first AP to solicit a training signal from the second AP and to request the one or more candidate STAs to feedback channel state information.
  • Process 600 may proceed from 610 to 620.
  • process 600 may involve processor 512 receiving, via transceiver 516 responsive to transmitting the second frame, a channel state information report based on measuring of a channel using the training signal transmitted by the second AP from at least one of the one or more candidate STAs.

Landscapes

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

Abstract

L'invention concerne des techniques se rapportant à un sondage de formation de faisceau coordonnée (CBF) ultra-haute fiabilité (UHR) dans des communications sans fil. Un appareil (p.ex., un premier point d'accès (AP)) lance une séquence de sondage en transmettant une première trame à un second AP et à une ou plusieurs stations candidates (STA) associées au premier AP. L'appareil reçoit, en réponse à la transmission de la première trame, une trame de réponse provenant du second AP indiquant la participation du second AP à la séquence de sondage. L'appareil transmet ensuite une seconde trame pour interroger une rétroaction provenant de chacune des STA candidates. L'appareil reçoit également, en réponse à la transmission de la seconde trame, un rapport de mesure provenant d'au moins une des STA candidates.
PCT/CN2025/070545 2024-01-05 2025-01-03 Sondage de formation de faisceau coordonné ultra-haute fiabilité dans des communications sans fil Pending WO2025146163A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463617807P 2024-01-05 2024-01-05
US63/617,807 2024-01-05

Publications (1)

Publication Number Publication Date
WO2025146163A1 true WO2025146163A1 (fr) 2025-07-10

Family

ID=96300074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2025/070545 Pending WO2025146163A1 (fr) 2024-01-05 2025-01-03 Sondage de formation de faisceau coordonné ultra-haute fiabilité dans des communications sans fil

Country Status (1)

Country Link
WO (1) WO2025146163A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200037275A1 (en) * 2018-07-26 2020-01-30 Mediatek Singapore Pte. Ltd. Joint sounding for multi-user communication in multi-ap wlan
WO2020253492A1 (fr) * 2019-06-19 2020-12-24 华为技术有限公司 Procédé de sondage de canal et dispositif de communication
US20210028962A1 (en) * 2018-05-04 2021-01-28 Semiconductor Components Industries, Llc Beamformer solicited sounding
WO2023081376A1 (fr) * 2021-11-05 2023-05-11 Interdigital Patent Holdings, Inc. Rapports de rétroaction de sondage entraînés par des données pour systèmes wlan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210028962A1 (en) * 2018-05-04 2021-01-28 Semiconductor Components Industries, Llc Beamformer solicited sounding
US20200037275A1 (en) * 2018-07-26 2020-01-30 Mediatek Singapore Pte. Ltd. Joint sounding for multi-user communication in multi-ap wlan
WO2020253492A1 (fr) * 2019-06-19 2020-12-24 华为技术有限公司 Procédé de sondage de canal et dispositif de communication
WO2023081376A1 (fr) * 2021-11-05 2023-05-11 Interdigital Patent Holdings, Inc. Rapports de rétroaction de sondage entraînés par des données pour systèmes wlan

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FELIPE ARRAñO SCHARAGER, ERICSSON, VIVO: "Outcome of [Post120][054][AIML18] Data Collection", 3GPP DRAFT; R2-2301440; TYPE DISCUSSION; FS_NR_AIML_AIR, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Athens, GR; 20230227 - 20230303, 17 February 2023 (2023-02-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052246077 *

Similar Documents

Publication Publication Date Title
US12156270B2 (en) Enhanced high-throughput multi-link operation management
US11825460B2 (en) Extreme-high-throughput multi-link dynamic antenna switching in wireless communications
EP4099737A1 (fr) Schéma de transmission de paramètres système dans des communications sans fil
US20210014853A1 (en) Multi-Access Point Uplink Collaboration
US20230179332A1 (en) Detailed Signaling Designs For Distributed-Tone Resource Unit Transmission
US20230345534A1 (en) Transmission Protection With Static Puncturing In Wireless Communications
US20250048452A1 (en) C-TDMA Protocols, TXOP Sharing Modes For Time Allocation, And Exchange Of Parameters In Multi-AP Systems
WO2025146163A1 (fr) Sondage de formation de faisceau coordonné ultra-haute fiabilité dans des communications sans fil
EP4266594A2 (fr) Formation de faisceau de 60 ghz assistée par une opération multi-liaison et transmission de données dans des communications sans fil
US20230337305A1 (en) Dynamic Initial Trigger Frame Control In EMLSR
US20230117111A1 (en) Coverage Enhancement For 6GHz Long Range Wireless Communications
US12133202B2 (en) Bandwidth indication with preamble puncturing in wireless communications
US11877144B2 (en) Sidelink resource allocation enhancements
CN116915297A (zh) 无线通信方法及装置
WO2025036466A1 (fr) Schémas de points d'accès multiples formant un faisceau coordonné asymétrique dans des communications sans fil
WO2025007876A1 (fr) Formation de faisceau coordonnée à multiples points d'accès dans des communications sans fil
US20240073972A1 (en) Primary Link Identification Schemes In Wireless Communications
EP4422085A1 (fr) Rétroaction implicite basée sur un déclencheur pour une formation de faisceau implicite dans des communications sans fil
WO2024165020A1 (fr) Procédé et appareil de commande de puissance avec transmission de signal de référence de positionnement de liaison latérale
WO2025148964A1 (fr) Schémas de regroupement de coordination multi-ap dans des communications sans fil
US20250344195A1 (en) Negotiation Handshake For Dynamic Subband Operation In Wireless Communications
WO2025180433A1 (fr) Schémas de transmission de coordination d'ap multiples dans des communications sans fil
US20240188130A1 (en) Anti-Motion And Anti-Interference Frame Exchange Sequences In Wireless Communications
US20240251402A1 (en) TID-Based UL Trigger In Wireless Communications
WO2025228360A1 (fr) Procédés de communication sans fil

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: 25736401

Country of ref document: EP

Kind code of ref document: A1