Nokia Corporation

Nokia Technologies Oy

Mediatek Singapore Pte. Ltd.

Mediatek Corporation

Core Wireless Licensing S.a.r.l.

Qualcomm Incorporated

Invt Spe LLC

Gabor Bajko

Yongho Seok

Jianhan Liu

James Chih-Shi Yee

Basavaraj Patil

James June-Ming Wang

Chao-Chun Wang

Thomas Edward Pare, Jr

Tat Keung Chan

Chih-Shi Yee

Krisztian Kiss

Ilkka Westman

Marco Stura

Mika Kasslin

Tianyu Wu

Teemu Ilmari Savolainen

Kai Ying Lu

Kirsi Maansaari

Martti Perala

Nadarajah Asokan

Kodo Shu

Jarkko Kneckt

Philip Ginzboorg

Valtteri Niemi

Pekka Laitinen

Markus Isomäki

Markku Ahti Tuohino

YungPing Hsu

Seppo Huotari

Srinivas Sreemanthula

Yuh-Ren Jauh

Balazs Bertenyi

Kalle Tammi

Tao Haukka

Jussi Tapani Kahtava

Yung-Ping Hsu

Olli Pulkkinen

Ervin Beres

Kirsztian Kiss

Janne Marin

Thomas Edward Pare

Lauri Kalevi Lahtinen

Chien-Fang Hsu

Ching-Hwa Yu

Gyorgy Tamas Wolfner

Jarmo Ilkka Saari

Gyula Bodog

Jouni Korhonen

Jose Costa-Requena

Po-Yuen Cheng

Paul Oommen

Gary Allen Anwyl

Aki Niemi

Son Phan-Anh

Lauri Laitinen

Jozsef Varga

Pasi Ismo Eronen

Eng Hwee Ong

Shuling Feng

Rongsheng Huang

Kun-Chien Hung

Chung-Ta Ku

Miguel Angel Garcia-Martin

Mika Ilkka Tapani Kasslin

Róbert Ropolyi

Atte Länsisalmi

Lars Rene Eggert

Gabor Jaro

Pál Köpösdi

József Varga

Gabor Járó

András Pfening

Balázs Bertenyi

Gábor Mittweg

Tommi Viitanen

Jaro Gabor

Atte Lansisalmi

Gábor Jaro

Olli M Pulkkinen

Embodiments of the present invention provide methods and devices for transmitting or receiving beacon frames and probe response frames that include MAC addresses of a multi-link device (MLD) operating on multiple links in a wireless network. For example, the beacon frames and probe response frames can include an MLD MAC address that uniquely identifies an AP MLD in a wireless network, and can optionally include one or more WM MAC addresses of STAs of the AP MLD. The MAC addresses can be used to by wireless devices (e.g., STA MLDs) to connect to and associate with the AP MLD, and can be used to generate a password element used during authentication between wireless devices.

Methods and devices for multi-link device (MLD) address discovery in a wireless network

An encryption mechanism used on cooperative multi-band wireless STA architecture that enables full duplex operations. In encrypting a frame, an AAD can be constructed by using a selected MAC address, which may not be associated with a band to be used for transmitting the frame in an upcoming TXOP. An STA that supports simultaneous transmission in a multi-band operation uses the same MAC address to encrypt the frames to be transmitted on different bands. An AAD is constructed by using a same MAC address corresponding to one of the transceivers. A transmit STA may specify band information used for encryption in the MAC header, which serves to signal the receive STA to decrypt the frame by using the proper information.

Encryption mechanism used in multi-band channel access

An apparatus implemented in a master access point (AP) selects at least one basic service set (BSS) from one or more neighbor BSSs to form a spatial reuse group (SRG). The apparatus then performs coordinated spatial reuse (CSR) in the SRG with a set of overlapping basic service set (OBSS) power detection (PD) parameters.

Multi-access point coordinated spatial reuse protocol and algorithm

A plurality of different medium access control (MAC) addresses are assigned to a plurality of virtual access point (AP) multi-link devices (MLDs) that are implemented within a physical AP MLD such that each of the plurality of virtual AP MLDs is assigned a respective MAC address of the plurality of different MAC addresses. Wireless communications are then established with one or more stations (STAs) over a plurality of links.

Multiple-BSSID support in multi-link operation in wireless communications

Embodiments of the present invention provide apparatus and methods for multi-link operations that include retransmission of data using different wireless links. The following discussion describes one such exemplary electronic system or computer system that can be used as a platform for implementing embodiments of the present invention. The multi-link device can be a multi-link wireless access point or a multi-link wireless station, for example. The multi-link device can operate multiple transceivers simultaneously to perform multi-link operations including retransmission using different wireless links. For example, the multi-link device can transmit an encrypted MPDU using a first wireless link, and retransmit the MPDU using a second wireless link by setting a MAC header of the MPDU according to a MAC address of the second wireless link, to advantageously enhance the performance, reliability, and efficiency of the wireless network.

Apparatus and methods of packet retransmission between multi-link devices

Radio management reporting techniques can allow a reporting station to send measurement parameters in one or more radio management frames. The receiving station can receive the radio management measurement parameters within a requested time period and/or can determine when the last requested radio management measurement parameter has been received.

Wi-Fi measurement report enhancement techniques

System and method of cooperative multi-band wireless STA communication that enables full duplex operations. Frames are configured to carry band information and are selected to be transmitted simultaneously in multiple bands based on various constraints to avoid out-of-order delivery. For frames under a block ACK agreement, a transmit STA can specify the transmission bands for the frames in an ADDBA request frame. While a first band is transmitting a first frame under a block ACK agreement, the second band can be used to transmit a frame under the same block ACK agreement as, and from the same traffic flow with, the first frame. Otherwise, the second band can only be used to transmit a frame with a different TID than the first frame.

Extremely high throughput (EHT) multi-band transmission

Systems and methods of WLAN communication including efficient spatial reuse mechanisms for relay transmissions between a repeater network and non-AP STAs in OFDMA. The non-AP STAs are grouped based on their connectivity with the individual repeaters and the radio coverage regions of the repeaters. Each group is either a non-overlapping group with the constituent non-AP STAs located in a non-overlapping coverage region of a particular repeater, or an overlapping group with the constituent non-AP STAs located in an overlapping coverage region of two or more repeaters. Based on the grouping, certain RUs (or subchannels) are reused for multiple groups without causing inter-group interference, thereby expanding the bandwidths used in the relay operations. RU allocation based on grouping can be used in combination with transmit power adjustment to achieve efficient spatial reuse in OFDMA.

Spatial reuse in WLAN multi-AP network

Embodiments of the present invention provide a method and apparatus for simultaneous transmission and reception of data wirelessly using different wireless bands. The multi-link operations described herein can provide higher network throughput and improved network flexibility compared to traditional techniques to wireless communication. Embodiments of the present invention support joint or independent transmission of data over different links, and a full duplex connection can be enabled by independent multi-band operation e.g., a frequency division duplex mode.

Multi-link operation setup and channel access control

Systems and methods of providing Basis Service Set (BSS) load information pertinent to multi-user (MU) communications in WLAN systems. An access point (AP) can determine the counts of MU-capable user stations (STAs) active STAs in a BSS. Each MU-capable STA is configured for Multi-User Multiple-Input Multiple-Output (MU-MIMO) communications and/or Orthogonal Frequency-Division Multiple Access (OFDMA) communications. The AP can further determine ratios of PPDU time over an observation period of MU uplink (UL) and downlink (DL) communications, respectively. The AP can further determine an underutilization level of each available frequency subband, the underutilization level integrating the actual underutilization in terms of both spatial streams and frequency subbands. The DL and UL underutilization levels can be separately determined and reported. The MU BSS load information can be included in a beacon frame as a BSS load information element and distributed to user STAs periodically.

Determination and transmission of BSS load metrics for MU WLAN systems

Embodiments of the present invention provide a method and apparatus for announcing the expected delay period between when a wireless AP stops transmitting on a first channel and begins transmitting on a second channel. After the last beacon frame is send on an old channel, a delay is experienced between transmitting the last frame on the old channel and transmitting the first frame on the new channel, where the delay varies based on the implementation of the AP and any CAC that must be performed on the new channel before broadcasting. Therefore, embodiments of the present invention provide an expected channel switch time element, for example, in a beacon frame or probe response frame.

Method and apparatus for advertising channel switch time in a wireless transmission system

A method, apparatus and computer program product are provided for verifying an access network using for example a trusted protocol such as Hotspot 2.0. In this regard, a method is provided that includes causing at least one available network to be detected. The method may further include determining a fully qualified domain name (FQDN) for the at least one detected available network. The method may further include causing a registry entry to be accessed in a registry that corresponds to the determined FQDN, wherein the registry entry comprises at least one certificate for at least one network entity. The method may further include verifying received configuration information from the connected network, wherein verification comprises determining whether the received configuration information is signed with a digital certificate that corresponds to the at least one certificate in the accessed registry entry.

Method for securing host configuration messages

Methods and apparatus, including computer program products, are provided for white space database discovery. In one aspect there is provided a method. The method may include sending, by a user equipment, a request to a server including a white space database, wherein the server is located at a first address; and receiving, at the user equipment, a response to the request, the response including at least one of an identity of the server or a second address for accessing at least one of the server or another server including another white space database. Related apparatus, systems, methods, and articles are also described.

White space database discovery

A method of combined direction finding (DF) and fine timing measurement (FTM) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device (AP) can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas, which allows a receiving device (STA) to resolve multiple DF sounding signals transmitted from the multiple antennas and thereby estimating angle of departure (AoD). On the other hand, the AP can estimate angle of arrival (AoA) from radio signals transmitted from the STA. When the radial resolution error of AoD or AoA positioning increases, DF positioning and fine-timing measurement (FTM) ranging can be jointly applied to reduce the radial resolution error and extends the AoD/AoA service area with positing accuracy.

Direction finding and FTM positioning in wireless local area networks

Growing community of inventors

Budapest, Hungary

Gabor Bajko