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公开(公告)号：US11412524B2
公开(公告)日：2022-08-09
申请号：US16821442
申请日：2020-03-17
Applicant: QUALCOMM Incorporated
Inventor： Marco Papaleo , Xiao Feng Wang , Shailesh Patil , Maarten Menzo Wentink , James Lansford , Jamshid Khun-Jush
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device that uses a first radio access technology (RAT) may identify a transmission timing scheme for a shared radio frequency spectrum band, the transmission timing scheme comprising a first set of time intervals allocated for transmissions using a first RAT and a second set of time intervals allocated for transmissions using a second RAT. The wireless device may transmit, during a time interval of the first set of time intervals, a channel reservation signal indicating an end time of the time interval and indicating that the wireless device uses the first RAT. The wireless device may transmit, based at least in part on the transmitted channel reservation signal, over the shared radio frequency spectrum band during at least a portion of the time interval before the end time of the time interval.
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公开(公告)号：US11343853B2
公开(公告)日：2022-05-24
申请号：US16790624
申请日：2020-02-13
Applicant: QUALCOMM Incorporated
Inventor： George Cherian , Maarten Menzo Wentink , Abhishek Pramod Patil , Alfred Asterjadhi
Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for sharing a transmission opportunity (TXOP) of a wireless channel. A first wireless local area network (WLAN) device can win a contention-based procedure to become an owner of the TXOP and determine to use the TXOP as a multi-device transmission opportunity (mTXOP). Although the first WLAN device is the owner of the mTXOP, the first WLAN device may allocate resources from the mTXOP to share with other WLAN devices. During a first portion of the mTXOP, the first WLAN device allocate subordinate transmission opportunities (sub-TXOPs) for use by other WLAN devices during a second portion of the mTXOP. The allocation of sub-TXOPs may be prepared based on fairness considerations, latency considerations, or both. In some implementations, a sub-TXOP may be allocated for a non-WLAN device, such as a wireless wide area network (WWAN) apparatus.
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43.发明申请公开(公告)号：US20220061088A1
公开(公告)日：2022-02-24
申请号：US17389554
申请日：2021-07-30
Applicant: QUALCOMM INCORPORATED
Inventor： Aleksandar Damnjanovic , Yisheng Xue , Maarten Menzo Wentink , Jing Sun , Xiaoxia Zhang
IPC: H04W74/08
Abstract: Wireless communications systems and methods related to channel access contention management in a shared radio frequency band are provided. A first wireless communication device performs, during a first time period, a first clear channel assessment (CCA) in a shared radio frequency band based on a first energy detection threshold, wherein performing the first CCA comprises obtaining at least one signal energy measurement. The first wireless communication device then performs, during a second time period subsequent to the first time period, a second CCA in the shared radio frequency band based on a second energy detection threshold, the second energy detection threshold being based on the at least one signal energy measurement. The wireless communication device then transmits, to a second wireless communication device in the shared radio frequency band based on the second CCA, a communication signal.
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公开(公告)号：US20210400730A1
公开(公告)日：2021-12-23
申请号：US17325816
申请日：2021-05-20
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Maarten Menzo Wentink , Yisheng Xue , Marco Papaleo
Abstract: Adaptive energy detection (ED) threshold medium access is discussed based on deployment and traffic type. The network nodes sharing a shared communication network are configured with multiple discrete ED thresholds or a range of ED values. As a transmitting node prepares to attempt access to the shared communication spectrum, it identifies an access trigger condition within the network. Such a condition may include traffic type, deployment, or access conditions. In response to detecting an access trigger condition, the transmitting node may select an ED threshold associated with the access trigger condition. Alternatively, upon detection of the access trigger condition, the transmitting node may implement a random ED threshold from the candidate range of ED threshold values.
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公开(公告)号：US20200260488A1
公开(公告)日：2020-08-13
申请号：US16790624
申请日：2020-02-13
Applicant: QUALCOMM Incorporated
Inventor： George Cherian , Maarten Menzo Wentink , Abhishek Pramod Patil , Alfred Asterjadhi
Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for sharing a transmission opportunity (TXOP) of a wireless channel. A first wireless local area network (WLAN) device can win a contention-based procedure to become an owner of the TXOP and determine to use the TXOP as a multi-device transmission opportunity (mTXOP). Although the first WLAN device is the owner of the mTXOP, the first WLAN device may allocate resources from the mTXOP to share with other WLAN devices. During a first portion of the mTXOP, the first WLAN device allocate subordinate transmission opportunities (sub-TXOPs) for use by other WLAN devices during a second portion of the mTXOP. The allocation of sub-TXOPs may be prepared based on fairness considerations, latency considerations, or both. In some implementations, a sub-TXOP may be allocated for a non-WLAN device, such as a wireless wide area network (WWAN) apparatus.
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Patent Agency Ranking
公开(公告)号：US10660130B2
公开(公告)日：2020-05-19
申请号：US16029467
申请日：2018-07-06
Applicant: QUALCOMM Incorporated
Inventor： Alfred Asterjadhi , George Cherian , Maarten Menzo Wentink , Abhishek Pramod Patil
Abstract: This disclosure provides systems, methods and apparatuses for coordinating access to a shared wireless medium among multiple master devices operating on the same frequency band. In some implementations, master devices may contend for access to the shared medium during a medium reservation window (MRW). During the MRW, master devices may advertise their intent to reserve at least a portion of the shared medium for one or more timeslots within a subsequent medium utilization period. The reservation messages may be broadcast to other master devices in the vicinity to prevent other master devices from accessing the wireless medium during a reserved timeslot. In some implementations, the owner of a timeslot may share at least a portion of its timeslot with other master devices. For example, the timeslot owner may enable other master devices to utilize an unused portion of the wireless medium, such as unused channels, spatial streams, or time.
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公开(公告)号：US10104611B2
公开(公告)日：2018-10-16
申请号：US15423782
申请日：2017-02-03
Applicant: QUALCOMM Incorporated
Inventor： Simone Merlin , Maarten Menzo Wentink , Zhi Quan , Alfred Asterjadhi
Abstract: Systems and methods for low overhead paging in a wireless communications network are described herein. In some aspects, an apparatus for wireless communication includes a receiver and a processor. The receiver receives a request from a first device. The request indicates a first period of a plurality of periods corresponding to a periodicity for transmitting paging messages. The processor assigns the first device to a group scheduled to receive paging messages at most every first period based on the request and determines a start time for transmitting paging messages to the first device based on schedules for transmitting paging messages to a plurality of other devices. In other aspects, an apparatus for wireless communication includes a processor and memory. The processor derives an information sub-unit from an information unit associated with a paging message, compresses the information sub-unit, and generates a second information unit associated with the method of compression.
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公开(公告)号：US10091636B2
公开(公告)日：2018-10-02
申请号：US15040596
申请日：2016-02-10
Applicant: QUALCOMM Incorporated
Inventor： Maarten Menzo Wentink , Krishnan Rajamani
Abstract: There lies a challenge to develop a technique of effectively establishing a direct communication link between client devices in a communication network. In some implementations, an associated STA is a client device which is associated with a particular access point (AP). A non-associated STA is a client device which is not associated with the AP. A tunneled probe request may be transmitted by an associated STA through the AP to be broadcast to other associated STAs. In some implementations, an active scan may be combined with a tunneled probe request in order to establish a communication link between an associated STA and a non-associated STA.
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公开(公告)号：US09998370B2
公开(公告)日：2018-06-12
申请号：US14703063
申请日：2015-05-04
Applicant: QUALCOMM Incorporated
Inventor： Alfred Asterjadhi , Maarten Menzo Wentink , Simone Merlin
IPC: H04L12/741 , H04W12/02 , H04W12/10 , H04W28/06
Abstract: Certain aspects of the present disclosure provide methods and apparatus for applying security to packets, for example, packets utilizing short MAC headers.
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公开(公告)号：US09912395B2
公开(公告)日：2018-03-06
申请号：US14623540
申请日：2015-02-17
Applicant: QUALCOMM Incorporated
Inventor： Maarten Menzo Wentink
CPC classification number: H04B7/0697 , H04W74/04 , H04W74/0816 , H04W76/10
Abstract: Certain aspects of the present disclosure provide methods and apparatus for utilizing a physical layer (PHY) header comprising an identifier for an access point (AP) or a Basic Service Set (BSS). A station (STA) that is assigned an order in a sequential response sequence may count only frames with PHY headers that contain the correct identifier. A STA may terminate its sequential access procedure when it receives a frame with a PHY header that specifies a different identifier for the AP or BSS that assigned the sequence. In this manner, the STA may prevent partly synchronizing to an overlapping network and avoid accessing the wireless medium at the wrong time.
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