Nxp Usa, Inc.

Huiling Lou

Hongyuan Zhang

Liwen Chu

Young Hoon Kwon

Rui Cao

Sudhir Srinivasa

Yi-Ling Chao

Manish Kumar

A device, a system, and a method for multi-link Tunneled Direct Link Setup (TDLS) are disclosed. In an embodiment, the device includes a wireless network interface device implemented on one or more integrated circuits (ICs), wherein the wireless network interface device is configured to transmit a TDLS setup request frame to a second device, wherein the TDLS setup request frame announces a plurality of proposed TDLS links to be established with the second device, receive a TDLS setup response frame from the second device, wherein the TDLS setup response frame indicates a plurality of TDLS links selected from the plurality of proposed TDLS links announced by the TDLS setup request frame, and establish the plurality of TDLS links indicated by the TDLS setup response frame with the second device.

Device, system, and method for multi-link tunneled direct link setup (TDLS) setup

Various embodiments relate to a system and method for joint sounding by a client with a master access point (AP) and a slave (AP), including: receiving a message from the master AP; applying network allocation vector (NAV) rules to update a NAV values, wherein the received message is treated as an intra-basic service set (BSS) message when the transmit address (TA) of the received message has a prespecified value; receiving a first trigger frame; and transmitting a first channel state information (CSI) to the master AP when the channel is idle based upon the updated NAV value in response to the trigger frame.

Apparatus and methods for multi-AP joint transmission and reception

Various embodiments relate to an access point (AP) configured to support a high priority (HP) service, including: a transceiver configured to: announce first enhanced distributed channel access (EDCA) parameters for a first device associated with the AP, wherein the first EDCA parameters support the HP service; announce second EDCA parameters for a second device associated with the AP that does not support the HP service; receive a HP priority access request frame from the first device configured to request HP services; determine that the second device supports the HP service through negotiation; and transmit an HP priority access response frame to the first device enabling HP traffic transmission by the first device.

High priority medium access

A device, a system, and a method for transmissions during a restricted Target Wake Time (rTWT) Service Period (SP) are disclosed. In an embodiment, the device includes a wireless network interface device implemented on one or more integrated circuits (ICs), where the wireless network interface device is configured to transmit a beacon on a first link that indicates an rTWT SP for the first link, transmit a frame prior to a wake period of the rTWT SP, where the frame is transmitted during a first Transmission Opportunity (TXOP) that overlaps with the wake period, and transmit low latency traffic on the first link during the wake period, where the first TXOP that overlaps with the wake period is at least one of ended and continued.

Device, system, and method for transmissions during a restricted target wake time (rTWT) service period (SP)

A device, a system, and a method for multi-link operations are disclosed. In an embodiment, the device includes a processor configured to generate a frame that includes a Traffic Indication Map (TIM) element, where the TIM element includes a group-addressed buffered frame indication for reported Access Points (APs) that indicates a transmitted Basic Service Set Identifier (BSSID) AP and non-transmitted BSSID APs affiliated with the reported APs, and exchange buffered frames according to the TIM element.

Device, system, and method for multi-link operations

Various embodiments relate to a method performed by a multi-link device (MLD) access point to establish a target wake time (TWT) with a MLD station, wherein a plurality of links are established between the MLD access point and the MLD station, including: transmitting, by the MLD access point, a TWT set up frame to the MLD station configured to indicate whether the TWT set up frame is applied to multiple links of the plurality of links; and negotiating, by the MLD access point, a TWT agreement with the MLD station via one of the multiple links with the MLD station, wherein the TWT agreement applies to all of the indicated multiple links.

Access point and station multi-link device operation

Aspects of the disclosure are directed to an apparatus having a multi-link device (MLD) including processing circuitry to communicate signals with one of a plurality of remote devices over multiple communications link. The MLD and the one of the remote devices operate in first and second communication-specific configurations as follows. A physical layer convergence procedure protocol data unit (PPDU) is transmitted in one of the links while a PPDU is communicated in another one of the links under a first configuration. A PPDU is communicated in a first one of the respective communications links with an ending time set based on a PPDU communicated in a second one of the respective communications links in a second configuration. Such approaches may be carried out based on capabilities relating to simultaneous transmission and reception of MLDs that are communicating.

Multi-link communications

One example discloses a first-device: wherein the first-device is configured to be coupled to a second-device over an IEEE 802.11 communications link; and wherein the first-device is configured to, store a current setup between the first-device and the second-device; identify a unique identifier of the second-device; transmit a request frame to a third-device; wherein at least one of the second-device and third-device is a multi-link-device (MLD); wherein the request frame is configured to request an association with the third-device and includes the unique identifier of the second-device; receive a response frame from the third-device; and wherein the response frame includes an indication that request was successful.

Multi-link device association and reassociation

Various embodiments relate to a method performed by a first wireless device for announcing operating capabilities to a second wireless device, wherein the first wireless device and second wireless device support a first protocol and a second protocol, including: announcing by the first device original capabilities to the second device; receiving an announcement of capabilities from the second device; receiving frames from the second device in PHY Protocol Data Units (PPDUs) following the first protocol and the second protocol; announcing by the first device a change in its capabilities to the second device; and receiving frames from the second device in PPDUs transmitted using the changed capabilities following the first protocol and the second protocol, wherein the change in the capabilities includes a change in a one of a puncture parameter, bandwidth parameter, mode and coding scheme (MCS) parameter, and a number of simultaneous streams (Nss) parameter.

Operating parameter update with wider bandwidth

Aspects of the present disclosure are directed to wireless communications based on a restricted TWT SP and buffer status. As may be implemented in accordance with one or more embodiments, frames are transmitted based on a restricted TWT SP and buffer status for communications between wireless circuits. Control data for the communications traffic may be processed in response to the restricted TWT SP, with a TXOP ending at the beginning of a restricted TWT SP of a another link, in response to the restricted TWT SP being negotiated in a different link. Such an approach may be carried out where one of the wireless circuits has no STR configuration. A protected duration time for the TWT SP may be set to a time that is less than a duration of the TWT SP in response to the TWT SP being protected by a quiet element duration period.

Frame transmission between wireless devices

Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves transmitting, by a first multi-link device (MLD) to a second MLD, a management frame on at least one of two links associated with the first MLD and the second MLD in a multi-link operation, receiving, by the second MLD from the first MLD, the management frame on at least one of the two links, and operating the second MLD according to the management frame received on at least one of the two links.

Method and apparatus for wireless communications

Embodiments of a method and an apparatus for multi-link operations are disclosed. In an embodiment, a method of multi-link operations involves, at a multi-link station device that has a non-simultaneous transmission and reception capability (NSTR STA MLD) that supports multiple links, exchanging frames on multiple links with a multi-link access point device (AP MLD) that has at least one of a simultaneous transmission capability and a simultaneous transmission and reception (STR) capability, and maintaining, at the NSTR STA MLD, at least one of a frame exchange and a link state on multiple links with the AP MLD that has at least one of the simultaneous transmission capability and the STR capability.

Method and apparatus for multi-link operations

Various embodiments relate to a method performed by a station to identify the maximum allowed transmit power spectral density (PSD) of a basic service set (BSS), including: receiving, by the station, a first field from an access point (AP) of the BSS, wherein the first field indicates that the BSS bandwidth is set to M times a unit channel bandwidth; receiving, by the station, a set of second fields from the AP, wherein the set of second fields includes K fields corresponding to K channels and wherein each of the K second fields indicates the maximum allowed transmit PSD for the K channels and the bandwidth of the channel is the unit channel bandwidth; and identifying, by the station, the maximum allowed transmit PSD of the M channels of the BSS bandwidth from the first M consecutive second fields.

Apparatus and methods of transmit power allocation in wireless communication systems

Various embodiments relate to a method performed by a first wireless device for providing a high priority communication service for a high priority traffic class between a first wireless device and a second wireless device, including: announcing support for the high priority communication service; receiving an association request from the second wireless device for the transmission of high priority traffic using the high priority communication service; accepting the received association request; and negotiating a restricted target wakeup time (TWT) service period (SP) for the high priority communication service between the first wireless device and the second wireless device, wherein higher priority is given for the transmission of high priority frames using the high priority traffic service.

Growing community of inventors

Sunnyvale, CA, United States of America

Huiling Lou