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公开(公告)号：US20250106613A1
公开(公告)日：2025-03-27
申请号：US18969753
申请日：2024-12-05
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Huizhao Wang , Hongyuan Zhang
Abstract: Non-access point (non-AP) multi-link device (MLD) roaming among a serving AP MLD and a target AP MLD of a roaming domain is disclosed. Links are set up from the non-AP MLD to the serving AP MLD. The non-AP MLD affiliated with the roaming domain initiates a link-level roaming setting up a link to the target AP MLD, wherein respective links are set up from the non-AP MLD to the serving AP MLD and target AP MLD. A type of links from the non-AP MLD to the serving AP MLD and target AP MLD is announced and the non-AP MLD terminates all links between the non-AP MLD and the serving AP MLD where the non-AP MLD has links set up only with the target AP MLD to complete the link-level roaming.
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公开(公告)号：US20250081230A1
公开(公告)日：2025-03-06
申请号：US18820607
申请日：2024-08-30
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Rui Cao , Kiseon Ryu , Huizhao Wang , Hongyuan Zhang
IPC: H04W74/08
Abstract: A method and system for announcing, by a first wireless device, one or more non-primary channel access (NPCA) primary channels of a basic service set (BSS) operating channel for frame transmission. A determination is made that the primary channel is busy and switching to a NPCA primary channel in response to the primary channel being busy and overlapping BSS activity. A frame is transmitted over the NPCA primary channel to a wireless device based on a backoff counter of the NPCA primary channel reaching a predefined value, the backoff counter set based on an enhanced distributed channel access (EDCA) parameter set.
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公开(公告)号：US20250048464A1
公开(公告)日：2025-02-06
申请号：US18499783
申请日：2023-11-01
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Hongyuan Zhang , Huizhao Wang
Abstract: Roaming for a non-access point (non-AP) device with a roaming access point (AP) multi-link device (MLD), wherein the roaming AP MLD includes a plurality of AP MLDs in different devices at different locations having one medium access control (MAC) service access point (SAP), including: exchanging management frames between the non-AP device and a current serving AP MLD that is one of the plurality of AP MLDs to select a future serving AP MLD that is one of the plurality of AP MLDs and to select future serving link of the future serving AP MLD; and exchanging management frames between the non-AP device and the serving AP MLD to switch from the current serving AP MLD and the future serving AP MLD.
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公开(公告)号：US20250047413A1
公开(公告)日：2025-02-06
申请号：US18794803
申请日：2024-08-05
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Huizhao Wang , Hongyuan Zhang , Ken Kinwah Ho
IPC: H04L1/00 , H04L1/1607
Abstract: Embodiments of a method and apparatus for communications are disclosed. In an embodiment, a communications device includes a controller configured to generate a control frame carrying security related information for frame integrity protection in different locations in the control frame with other information in between the security related information and a wireless transceiver configured to wirelessly transmit the control frame to a second communications device.
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公开(公告)号：US20240422845A1
公开(公告)日：2024-12-19
申请号：US18745816
申请日：2024-06-17
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Huizhao Wang , Hongyuan Zhang
Abstract: Embodiments of a method and apparatus for communications are disclosed. In an embodiment, a communications device includes a controller configured to generate a beacon frame based on Multiple Basic Service Set Identifier (MBSSID) support information and a wireless transceiver configured to wirelessly transmit the beacon frame to a second communications device.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240333373A1
公开(公告)日：2024-10-03
申请号：US18622664
申请日：2024-03-29
Applicant: NXP USA, Inc.
Inventor： Kiseon Ryu , Liwen Chu , Rui Cao , Huizhao Wang , Hongyuan Zhang
IPC: H04B7/155 , H04L1/1607 , H04L5/00 , H04W74/0816
CPC classification number: H04B7/15507 , H04L1/1621 , H04L5/0055 , H04W74/0816
Abstract: Embodiments of relay device, communications system and method are disclosed. In an embodiment, a relay device comprises a wireless transceiver to receive and transmit frames, and a controller operably coupled to the wireless transceiver to process the frames, wherein the controller is configured to receive a frame from the transmitter device, perform a relay operation to relay the frame from the transmitter device to the destination device, wherein the relay device is configured to perform the relay operation using only lower MAC functions, and transmit the frame from the transmitter device to the destination device.
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公开(公告)号：US20240259778A1
公开(公告)日：2024-08-01
申请号：US18426622
申请日：2024-01-30
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Huizhao Wang , Hongyuan Zhang
Abstract: One example discloses a roaming AP (access point) MLD (multi-link device) for wireless communications, including: a first affiliated AP MLD and a second affiliated AP MLD; a controller configured to: establish a first set of links between the first affiliated AP MLD and a non-AP device at a first time; wherein each of the first set of links from the first affiliated AP MLD includes a first identifier in a frame transmission; identify the non-AP device as a roaming device when at a second time, a first link from the second affiliated AP MLD, having a second identifier in a frame transmission, is visible to the non-AP device, and a link having the first identifier in a frame transmission from the first affiliated AP MLD is no longer visible to the non-AP device; and establish a second set of links between the second affiliated AP MLD and the non-AP device at a third time, after a second link having the second identifier in a frame transmission from the second affiliated AP MLD is visible to the non-AP device.
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公开(公告)号：US20240236639A1
公开(公告)日：2024-07-11
申请号：US18409618
申请日：2024-01-10
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Huizhao Wang , Hongyuan Zhang
Abstract: Embodiments of apparatus, system and method are disclosed. In an embodiment, a distributed access point (AP) multi-link device (MLD) apparatus comprises a roaming AP MLD having a medium access control (MAC) service access point (SAP) address, and a plurality of AP MLDs affiliated with the roaming AP MLDs, wherein at least one of the roaming AP MLD and the AP MLDs is operable to, for a multi-link setup between a non-AP MLD and the roaming AP MLD through one of the AP MLDs affiliated with the roaming AP MLD, calculates Pairwise Master Key (PMK) and Pairwise Transient Key (PTK) using the MAC SAP address of the roaming AP MLD and allow the non-AP MLD to be associated with the roaming AP MLD using the PMK and PTK for frame exchanges.
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公开(公告)号：US20240137982A1
公开(公告)日：2024-04-25
申请号：US18383002
申请日：2023-10-22
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Hongyuan Zhang
IPC: H04W74/08
CPC classification number: H04W74/0816 , H04W74/0866
Abstract: A method and apparatus for wireless communications are disclosed which includes announcing R-TWT support from a first wireless station to a second wireless station in a broadcast PPDU, negotiating R-TWT schedule membership with the second wireless station, the negotiating comprising sending a low latency indication and identifying low latency TIDs of a R-TWT schedule, and sending frames in accordance with the R-TWT schedule in the identified low latency TIDs.
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10.发明公开公开(公告)号：US20240114553A1
公开(公告)日：2024-04-04
申请号：US18479845
申请日：2023-10-03
Applicant: NXP USA, Inc.
Inventor： Liwen Chu , Kiseon Ryu , Hongyuan Zhang
CPC classification number: H04W74/0816 , H04W52/0248
Abstract: An AP receives a frame comprising an indication of a restricted target wake up time schedule service period (r-TWT SP) from a wireless device. The AP one or more of adjusts an r-TWP SP of the AP based on the indication of the r-TWT SP indicated in the received frame and announcing that an STA associated with the AP is to terminate a transmit opportunity (TXOP) before the r-TWT SP indicated in the received frame begins.
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