WO2023107374A1 - Systèmes et procédé pour indiquer des informations de période de service pour une heure de réveil cible restreinte - Google Patents

Systèmes et procédé pour indiquer des informations de période de service pour une heure de réveil cible restreinte Download PDF

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Publication number
WO2023107374A1
WO2023107374A1 PCT/US2022/051816 US2022051816W WO2023107374A1 WO 2023107374 A1 WO2023107374 A1 WO 2023107374A1 US 2022051816 W US2022051816 W US 2022051816W WO 2023107374 A1 WO2023107374 A1 WO 2023107374A1
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WO
WIPO (PCT)
Prior art keywords
twt
twt schedule
schedule
frame
membership
Prior art date
Application number
PCT/US2022/051816
Other languages
English (en)
Inventor
Chunyu Hu
Binita Gupta
Muhammad Kumail Haider
Chittabrata GHOSH
Original Assignee
Meta Platforms Technologies, Llc
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
Priority claimed from US17/982,068 external-priority patent/US20230180127A1/en
Application filed by Meta Platforms Technologies, Llc filed Critical Meta Platforms Technologies, Llc
Publication of WO2023107374A1 publication Critical patent/WO2023107374A1/fr

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Classifications

    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the one or more processors may be configured to determine whether the device can allocate one or more resources for a new membership of the TWT schedule. In response to determining that the device cannot allocate one or more resources for a new membership of the TWT schedule, the one or more processors may be configured to determine that the device cannot accept a request for a new membership of the TWT schedule.
  • the device may determine whether the device can allocate one or more resources for a new membership of the TWT schedule. In response to determining that the device cannot allocate one or more resources for a new membership of the TWT schedule, the device may determine that the device cannot accept a request for a new membership of the TWT schedule.
  • the device may determine whether there exists another TWT schedule set up for an overlapping basic service set (OBSS) which is different from a BSS of the device.
  • the device may set the subfield of the frame to a fourth value, indicating, to the receiver device receiving the frame, to end a Transmit Opportunity (TXOP) duration before a start time of a service period (SP) of the another TWT schedule.
  • TXOP Transmit Opportunity
  • SP service period
  • the device may set another subfield of the frame to an identifier of the OBSS.
  • FIG. 3 is a block diagram of a computing environment according to an example implementation of the present disclosure.
  • FIG. 6 is another example format of a TWT element field associated with an R-TWT schedule, according to an example implementation of the present disclosure.
  • FIG. 1 is a block diagram of an example artificial reality system environment.
  • FIG. 1 provides an example environment in which devices may communicate traffic streams with different latency sensitivities/requirements.
  • the artificial reality system environment 100 includes an access point (AP) 105, one or more head wearable displays (HWD) 150 (e.g., HWD 150A, 150B) worn by a user, and one or more computing devices 110 (computing devices 110A, 110B) providing content of artificial reality to the HWDs 150.
  • AP access point
  • HWD head wearable displays
  • computing devices 110A, 110B computing devices 110A, 110B
  • the sensors 155 detect the translational movement and/or the rotational movement, and determine an orientation and location of the HWD 150.
  • the sensors 155 can detect the translational movement and/or the rotational movement with respect to a previous orientation and location of the HWD 150, and determine a new orientation and/or location of the HWD 150 by accumulating or integrating the detected translational movement and/or the rotational movement. Assuming for an example that the HWD 150 is oriented in a direction 25 degrees from a reference direction, in response to detecting that the HWD 150 has rotated 20 degrees, the sensors 155 may determine that the HWD 150 now faces or is oriented in a direction 45 degrees from the reference direction.
  • the sensors 155 include the hand tracker, which includes an electronic component or a combination of an electronic component and a software component that tracks a hand of the user.
  • the hand tracker may be a component separate from sensors 155.
  • the hand tracker includes or is coupled to an imaging sensor (e.g., camera) and an image processor that can detect a shape, a location and/or an orientation of the hand. The hand tracker may generate hand tracking measurements indicating the detected shape, location and/or orientation of the hand.
  • the computing device 110 is an electronic component or a combination of an electronic component and a software component that provides content to be rendered to the HWD 150.
  • the computing device 110 may be embodied as a mobile device (e.g., smart phone, tablet PC, laptop, etc.).
  • the computing device 110 may operate as a soft access point.
  • the computing device 110 includes a communication interface 115, a processor 118, and a content provider 130 (e.g., content provider 130A, BOB).
  • P2P communication When P2P communication is established, various channel access rules may govern the P2P communication.
  • An AP assisted P2P trigger frame sequence may reduce the content! on/collision associated with TWT (or R-TWT) in P2P communication.
  • a P2P model where a P2P STA (e.g., a HWD 150) is not associated with an infra-basic service set (BSS) AP, may improve P2P communication. Without AP’s assistance or coordination, a transmission over the P2P link may collide with another transmission in the BSS.
  • a reverse direction protocol (RDP) may be enabled for P2P communication.
  • an advertisement frame may include a TWT element (or TWT information element (IE)).
  • TWT element or TWT information element (IE)
  • a TWT IE associated with an R-TWT schedule set up by a device may include a plurality of bits respectively indicating (1) a first property of whether the R-TWT schedule is active, (2) a second property of whether the R- TWT schedule is full, and (3) a third property of whether the R-TWT schedule is associated with a BSS of the device or an OBSS which is different from the device’s own BSS.
  • Embodiments in the present disclosure have at least the following advantages and benefits.
  • the broadcast TWT information field 518 may include the two bits (Bl B2) as the restricted TWT schedule information subfield 562.
  • the broadcast TWT parameter set field 520 may not have enough available (e.g., reserved) bits to respectively indicate all of the first property, the second property and the third property.
  • a 2 -bit encoding may deliver/indicate information about some or all of the first, second and third properties of an R-TWT schedule (or an SP thereof).
  • the TWT IE 500 associated with an R-TWT schedule set up by a device may include two bits (Bl B2) as the restricted TWT schedule information subfield 562, which are encoded as shown in Table 1 or Table 2 shown above.
  • the TWT IE 600 has the same structure as the TWT IE 500 (see FIG. 5) except for the TWT IE 600 includes the field of OBSS ID 619.
  • a first device e.g., AP
  • sending an advertisement frame associated with a R-TWT schedule may identify/detect/monitor the OBSS associated with the advertised TWT schedule.
  • the container carrying a restricted TWT schedule information subfield (of an advertisement frame in the OBSS) may be a PLCP Protocol Data Unit.
  • the first device may identify an identifier of the OBSS (e.g.
  • FIG. 7 is a block diagram of a system environment 700 in which an AP 710 and a client device 750 communicate data relating to an R-TWT schedule, according to an example implementation of the present disclosure.
  • the AP 710 may be an AP, a soft AP or a computing device in a WLAN.
  • the AP 710 may include a TWT manager 730.
  • the TWT manager 730 includes an electronic component or a combination of an electronic component and a software component.
  • the TWT manager 730 may include an advertisement manager 732, a membership manager 734, and/or a duration manager 736.
  • the TWT manager 730 may be configured to advertise an R-TWT schedule by indicating properties of the R-TWT schedule.
  • the duration manager 736 may be configured to receive a request from a STA (e.g., client device 750) to increase a schedule duration (e.g., an SP duration or a nominal minimum TWT wake duration) of a particular R- TWT schedule, determine whether the request is accepted or rejected/denied, and if accepted, increase the schedule duration of the particular R-TWT schedule.
  • a schedule duration e.g., an SP duration or a nominal minimum TWT wake duration
  • the TWT manager 770 may be configured to (1) receive an advertisement frame (e.g., advertisement frame 740) associated with a particular R-TWT schedule from the AP 710, and (2) perform various TWT operations with respect to the particular R-TWT schedule (e.g., request for a new R-TWT membership, manage timings of TXOP, request to increase a schedule duration, etc.) based on restricted TWT schedule information contained in the TWT IE of the advertisement frame (e.g., the restricted TWT schedule information subfield 562 of the TWT IE 500).
  • advertisement frame e.g., advertisement frame 740
  • various TWT operations with respect to the particular R-TWT schedule e.g., request for a new R-TWT membership, manage timings of TXOP, request to increase a schedule duration, etc.
  • restricted TWT schedule information contained in the TWT IE of the advertisement frame e.g., the restricted TWT schedule information subfield 562 of
  • the membership manager 772 may be configured to (1) determine, based on the restricted TWT schedule information of the particular R-TWT schedule contained in the advertisement frame 740, whether the client device 750 sends a request for a new membership of the particular R-TWT schedule, and (2) send the request based on the determination.
  • the TXOP manager 774 may be configured to determine timings of TXOP (of the client device 750) based on the restricted TWT schedule information of the particular R-TWT schedule contained in the advertisement frame 740.
  • the duration manager 776 may be configured to determine whether to send a request to increase a schedule duration, based on the restricted TWT schedule information of the particular R-TWT schedule contained in the advertisement frame 740.
  • the start times of SPs may be obtained from an TWT IE (e.g., from the fields of 515, nominal minimum TWT wake duration 516 and TWT wake interval mantissa 517 of the TWT IE 500).
  • the client device 750 or TXOP manager 774 can stop/terminate/end its own TXOP before the start of SPs of the active R-TWT schedule.
  • the client device 750 does not need to stop/terminate/end its own TXOP before the start of SPs of the nonactive R-TWT schedule.
  • the advertisement frame 740 of an R-TWT schedule may indicate whether the R-TWT schedule (or an SP thereof) is full.
  • the R-TWT schedule set up by the AP 710 may be indicated as “full” if the AP 710 (or the membership manager 734) is unlikely to (or cannot) accept a request for a new membership of the R-TWT schedule.
  • FIG. 8 is a flowchart showing a process 800 of indicating service period (SP) information for R-TWT operation for wireless communication, according to an example implementation of the present disclosure.
  • the process 800 is performed by a device (e.g., an AP 105, an AP 710, a computing device 110A, 110B, a HWD 150A, 150B).
  • the process 800 is performed by other entities.
  • the process 800 includes more, fewer, or different steps than shown in FIG. 8.
  • the device may generate 802 a frame (e.g., TWT advertisement frame 740) relating to a TWT schedule.
  • the TWT schedule may be an R-TWT schedule.
  • the device may determine 804 whether the device (e.g., AP 710 or membership manager 732) can accept a request for a new membership of the TWT schedule.
  • the device may determine whether the device can accept a request for increasing a duration of a service period (SP) of the TWT schedule.
  • the device may set the subfield of the frame to the first value (e.g., value “2” in the restricted TWT schedule information subfield 562 according to Table 1), indicating, to the receiver device receiving the frame, to avoid sending a request for increasing the duration of the SP of the TWT schedule.
  • the first value e.g., value “2” in the restricted TWT schedule information subfield 562 according to Table 1
  • the device may set the subfield of the frame to a third value (e.g., value “0” in the restricted TWT schedule information subfield 562 according to Table 1).
  • processor 316 can provide various functionality for computing system 314, including any of the functionality described herein as being performed by a server or client, or other functionality associated with message management services.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor, or, any conventional processor, controller, microcontroller, or state machine.
  • a processor also may be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • particular processes and methods may be performed by circuitry that is specific to a given function.
  • the memory e.g., memory, memory unit, storage device, etc.
  • the memory may include one or more devices (e.g., RAM, ROM, Flash memory, hard disk storage, etc.) for storing data and/or computer code for completing or facilitating the various processes, layers and modules described in the present disclosure.
  • machine-readable media can comprise RAM, ROM, EPROM, EEPROM, or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to carry or store desired program code in the form of machine-executable instructions or data structures and which can be accessed by a general purpose or special purpose computer or other machine with a processor. Combinations of the above are also included within the scope of machine-readable media.
  • Machine-executable instructions include, for example, instructions and data which cause a general purpose computer, special purpose computer, or special purpose processing machines to perform a certain function or group of functions.
  • references to “or” can be construed as inclusive so that any terms described using “or” can indicate any of a single, more than one, and all of the described terms.
  • a reference to “at least one of ‘A’ and ‘B’” can include only ‘A’, only ‘B’, as well as both ‘A’ and ‘B’.
  • Such references used in conjunction with “comprising” or other open terminology can include additional items.

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

Abstract

La présente invention concerne un dispositif pouvant générer une trame relative à un calendrier d'heures de réveil cibles (TWT). En réponse à la détermination du fait que le dispositif ne peut pas accepter une demande pour un nouvel abonnement au calendrier TWT, le dispositif peut régler un sous-champ de la trame à une première valeur, indiquant, à un dispositif récepteur recevant la trame, d'éviter d'envoyer une demande pour un nouvel abonnement au calendrier TWT. En réponse à la détermination du fait qu'il existe au moins un dispositif sans fil ayant un abonnement au programme TWT, le dispositif peut régler le sous-champ de la trame à une seconde valeur. En réponse à la détermination du fait qu'il existe un autre programme TWT établi pour un ensemble de services de base (OBSS) se chevauchant, le dispositif peut régler le sous-champ de la trame à une quatrième valeur. Le dispositif peut transmettre sans fil la trame générée au dispositif récepteur.
PCT/US2022/051816 2021-12-07 2022-12-05 Systèmes et procédé pour indiquer des informations de période de service pour une heure de réveil cible restreinte WO2023107374A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202163286753P 2021-12-07 2021-12-07
US63/286,753 2021-12-07
US17/982,068 US20230180127A1 (en) 2021-12-07 2022-11-07 Systems and method for indicating service period information for restricted target wake time
US17/982,068 2022-11-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190141631A1 (en) * 2017-11-03 2019-05-09 Qualcomm Incorporated Indicating validity of a broadcast target wake time schedule
US20190268846A1 (en) * 2018-02-27 2019-08-29 Qualcomm Incorporated Suspend, resume, and teardown of twt sessions and memberships
US20210289516A1 (en) * 2018-07-27 2021-09-16 Samsung Electronics Co., Ltd. Method and apparatus for using unlicensed band in communication system
US20210360646A1 (en) * 2020-03-02 2021-11-18 Nxp Usa, Inc. Qos guarantee for high priority low latency service

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190141631A1 (en) * 2017-11-03 2019-05-09 Qualcomm Incorporated Indicating validity of a broadcast target wake time schedule
US20190268846A1 (en) * 2018-02-27 2019-08-29 Qualcomm Incorporated Suspend, resume, and teardown of twt sessions and memberships
US20210289516A1 (en) * 2018-07-27 2021-09-16 Samsung Electronics Co., Ltd. Method and apparatus for using unlicensed band in communication system
US20210360646A1 (en) * 2020-03-02 2021-11-18 Nxp Usa, Inc. Qos guarantee for high priority low latency service

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
802 11 WORKING GROUP OF THE LAN/MAN STANDARDS COMMITTEE OF THE IEEE COMPUTER SOCIETY, vol. 802.11ax drafts, no. D5.1, 6 November 2019 (2019-11-06), pages 1 - 770, XP068155342, Retrieved from the Internet <URL:http://www.ieee802.org/11/private/Draft_Standards/11ax/Draft%20P802.11ax_D5.1.pdf> [retrieved on 20191106] *

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