Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of the plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group poll (G-Poll) message that includes a resource allocation that indicates at least one allocated channel of the plurality of channels for the WTRU; and a transmitter configured to transmit an uplink request message, to the AP in response to the G-Poll message, over the at least one allocated channel of the plurality of channels, the uplink request message corresponding to uplink data the WTRU has for transmission to the AP.

Abstract: As disclosed herein, there may be systems, methods, and devices for enabling multi-link wireless local area networks (WLAN). One or more non-AP station (STA) multi-link devices (MLDs) and one or more Access Point (AP) MLD may establish a multi-link association between each other, thereby establishing a multi-link connection that enables improved and more efficient wireless communication.

Abstract: A discovery procedure example with long range multi-link devices (MLDs) includes an access point (AP) MLD and a non-AP station (STA) MLD using a first link and second link. A first non-AP STA is affiliated with the non-AP STA MLD, and a first AP STA is affiliated with the AP MLD. The first non-AP STA receives a first beacon over the first link, and transmits, based on the first beacon, over the first link, a multi-link (ML) probe request frame including and a request for a profile of a second AP STA affiliated with the AP MLD. The first non-AP STA receives, responsive to the ML probe request frame, over the first link, an ML probe response frame including the profile. The first non-AP STA transmits a report, including a measurement of the first link or the second link.

Abstract: Apparatuses, architectures, and methods directed to protecting long range transmission in wireless networks are described. A first station (STA) transmits a first PPDU including a first frame to a second STA. The first PPDU is defined for use with a first transmission range. The first STA transmits a second PPDU including a second frame to the second STA. The second PPDU is defined for use with a second transmission range. The first frame or the second frame includes, respectively, first and second information for soliciting a response from the second STA. The first STA receives at least a third PPDU including a third frame from the second STA, and the third PPDU is defined for use with the first transmission range. The first STA transmits data to the second STA based on the third PPDU including third information in the third frame indicating availability to receive data.

Abstract: Methods, apparatuses, and systems related to coordinated beamforming in Wi-Fi are provided. One method may include transmitting, by a first AP to a second AP, a coordinated beamforming (CoBF) invite frame to invite the second AP to participate in CoBF with the first AP, and receiving a CoBF response frame indicating an acceptance by the second AP of the CoBF with the first AP. The method may also include transmitting, to at least two STAs, an initial control frame (ICF) requesting availability information for the at least two STAs. At least one of the STAs is associated with the first AP, and at least another one of the STAs is associated with the second AP. The method may include receiving, from the at least two STAs, an initial control response frame (ICR) indicating their availability to receive coordinated transmissions from the first AP and the second AP.

Abstract: In a wireless local area network (WLAN), a station (STA) may receive a trigger frame including a user information field indicating a resource allocation for a tone distributed resource unit (TD-RU). Further, the STA may transmit a TD-RU transmission in the resource allocation based on the user information field indicating the resource allocation for the TD-RU. In an example, the TD-RU transmission may be a trigger based (TB) physical layer (PHY) protocol data unit (PDU) (TB-PPDU). In a further example, the user information field may be addressed to the STA. In another example, the user information field may include an RU allocation subfield. Moreover, the resource allocation for the TD-RU may be included in the RU allocation subfield, in an example. Also, the user information field may include indication information indicating one or more of an RU, multiple RUs (MRUs), or a TD-RU.

Abstract: A method performed by a STA of a WLAN may comprise receiving a trigger frame, from an AP. The trigger frame may be a trigger for uplink MU data transmission and the trigger frame may indicate a traffic priority. In response to receiving the trigger frame, the STA may transmit at least one A-MPDU comprising a plurality of data units. At least one of the plurality of data units may have a priority greater than the indicated traffic priority and another one of the plurality of data units may have a priority equal to the indicated traffic priority.

Abstract: Methods and apparatuses for channel sounding reports may be used in wireless local area network (WLAN) systems. A station (STA) may receive, from an access point (AP), a beacon frame. The STA may receive, from the AP, a null data packet (NDP) announcement (NDPA) frame including an indication of subchannels for measuring channel characteristics. The STA may receive, from the AP, an NDP frame. The STA may transmit, to the AP, a feedback report frame including channel state information (CSI) feedback, wherein the CSI feedback is based on measurements that the STA performed on the received NDP frame using the indicated subchannels for measuring channel characteristics. The beacon frame may include indications of punctured subchannel(s) and subchannel(s) that is not punctured, which may be indicated as a disabled subchannel bitmap. The subchannels for measuring channel characteristics may be equal to or a subset of the subchannel(s) that is not punctured.

Abstract: Methods, apparatuses, devices, and computer program products for changing NPCA primary channel are described. A non-AP STA transmits, to an AP, a first frame including a first non-primary channel access, NPCA, information field including a first capability subfield that includes information indicative of a capability of the non-AP STA to switch from a basic service set, BSS, primary channel to a NPCA primary channel that lies outside of a current operating channel width of the non-AP STA and that lies within a BSS channel width of the AP, the current operating channel width including the BSS primary channel. The non-AP STA receives a management frame including a second NPCA information field including a control subfield that indicates enablement information for switching from the BSS primary channel to a specific NPCA primary channel outside the current operating channel width of the non-AP STA, and switches to the specific NPCA primary channel.

Abstract: Methods, architectures, apparatuses, and systems directed to coordinated spatial reuse are described herein. In an embodiment, a first access point (AP) may be configured to transmit a first transmission and to transmit to a first station (STA) associated with the first AP, a first frame that may request received power measurement information. The first AP may be configured to receive from the first STA a second frame including the requested received power measurement information. The first AP may be configured to transmit, to the second AP, a trigger frame including a second AP identifier and a first indication of first transmit power adjustment information for the second AP. The first AP may be configured to transmit to the first STA a third transmission that may share a same set of resources as the second AP used for a fourth transmission.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products related to distributed computation and/or synchronization in wireless networks are provided. For example, methods described herein can facilitate distributed frequency, amplitude, and phase synchronization for multiple STAs for over-the-air-computation via phased coded pilots and/or via uplink sounding.

Abstract: A station (STA) receives a parameterized spatial reuse (PSR) reception (PSRR) trigger frame from an overlapping basic service set access point (AP). The PSRR trigger frame includes a special user information field including a plurality of PSR subfields, each PSR subfield including a respective PSR value. The STA determines a received power level of the PSRR frame per each 20 MHz channel over which the PSRR frame is received. The STA determines a transmission power for a PSR transmission (PSRT) for transmission to an associated AP based on a minimum PSR value determined as a minimum of the plurality of respective PSR values, the determined received power level of the PSRR frame at the STA per each 20 MHz channel over which the PSRR frame is received, and an effective bandwidth of the PSRT frame. The station transmits the PSRT frame at the determined transmission power.

Abstract: Systems, methods, and devices for broadcast service negotiation and non-simultaneous transmit-receive (STR) channel blindness recovery are provided herein. Some methods performed by a Wireless Transmit/Receive Unit (WTRU), may comprise operating over a first link; operating over a second link; receiving a frame including a Network Allocation Vector (NAV) setting associated with the second link, the NAV setting indicating a time duration; and sending a transmission over the first link, wherein a duration of the transmission over the first link is shorter than or equal to the time duration indicated by the NAV setting. The frame including the NAV setting indicates that the time duration may not be extended or modified. The method may further comprise sending, by the WTRU, an indication that it the WTRU is capable of performing a multi-link restricted transmission. The WTRU may enter a sleep mode on the first link after sending the transmission over the first link.

Abstract: A method performed by a first wireless access point for coordinating a multi-access point transmission in a wireless network of multiple access points includes receiving an indication of a transmit opportunity for the first wireless access point, transmitting at least one indication frame to the multiple access points comprising information related to the transmit opportunity, receiving at least one request frame from one or more access points of the multiple access points indicating participation with the transmit opportunity, and transmitting a trigger frame to the one or more access points that indicated participation with the transmit opportunity, wherein the trigger frame comprises information indicating respective power levels for the participating access points. The shared transmit opportunity may then be used to transmit downlink data to associated stations of the first wireless access point and the other participating access points during the transmit opportunity.

Abstract: There may be a method, device, and/or system for distributed multi-link device design for ultra-high reliability situations. In some cases, a wireless receive transmit unit (WTRU), may receive an indication that an access point supports multi-AP operations. The WTRU may send a request for association to the access point, wherein the request for association includes a multi-AP operation element. The WTRU may receive a response to the request for association to the access point, wherein the response indicates a status of the multi-AP operation. The WTRU may send a multi-AP operation request, based on the status of the multi-AP operation. The WTRU may receive a multi-AP operation response. A single multi-link device may operate on multiple different channels, and a multi-AP operation, that uses more than one MLD or at least one MLD and another non-MLD, may operate on the same or overlapping channels.

Abstract: Methods and apparatuses for Multi-AP channel sounding for Wireless Area Networks (WLAN) are disclosed. A method performed by a beamformee may compromise: receiving, from a beamformer, a null data packed (NDP) announcement frame (NDPA); receiving, from the beamformer, an NDP frame; receiving, from the beamformer, an enhanced beamforming request poll (BFRP) trigger frame including an indication of a feedback format; and transmitting, to the beamformer based on the NDP and NDPA, using a format indicated by the feedback format of the BFRP trigger frame, a feedback frame including a feedback report. The trigger frame may be an enhanced beamforming report poll (BFRP) trigger frame. The feedback report may be a beamforming report or a vector index (VI) feedback report. The beamformer may be an access point (AP) and the beamformee may be a station (STA).

Abstract: A station (STA) may receive a frame transmitted to a plurality of stations (STAs). The frame may indicate a first frequency resource allocated for the STA and a second frequency resource allocated for another STA of the plurality of STAs. The STA may transmit a data frame using the first frequency resource and receive an acknowledgement frame that acknowledges receipt of the data frame. The STA may receive a multi-user (MU) request to send (RTS) frame transmitted to the plurality of STAs and may subsequently transmit a clear to send (CTS) frame in response to receipt of the MU RTS frame. The RTS/CTS transmissions may occur prior to transmission of the data frame.

Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of the plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group poll (G-Poll) message that includes a resource allocation that indicates at least one allocated channel of the plurality of channels for the WTRU; and a transmitter configured to transmit an uplink request message, to the AP in response to the G-Poll message, over the at least one allocated channel of the plurality of channels, the uplink request message corresponding to uplink data the WTRU has for transmission to the AP.

Abstract: The present application relates to an olefin polymerization method and system in the field of olefin polymerization. The method combines a supported dual catalysts with a series process, introduces a liquid material obtained after heat exchange and gas-liquid separation of a circulation gas flow into a separate first reactor to get into contact with the supported dual catalysts for polymerization reaction, and then introduces the reaction material and the first polyolefin generated by reaction into a second reactor to continue polymerization reaction, thereby enabling particles to circulate between first reactor and second reactor, improving mixing effect of two polyolefins with obvious differences in properties, avoiding the occurrence of phase separation, and facilitating the production of polyolefins with excellent performance.

Abstract: Methods, architectures, apparatuses, and systems directed to multi-access point (MAP) coordinated procedure are described. A wireless station (STA) may be configured to receive, from a first Access Point (AP), a first frame that indicates Multiple Access Point (MAP) coordination information corresponding to the first AP and one or more second APs and to transmit, to the first AP, a second frame that indicates one or more MAP coordination schemes associated with one or more of the first and the second APs. A first Access Point (AP) may be configured to transmit, to one or more wireless Stations (STA), a first frame that indicates MAP coordination information corresponding to the first AP and one or more second APs and to receive, from one or more wireless Stations (STA), a second frame that indicates one or more MAP coordination schemes associated with one or more of the first and the second APs.