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公开(公告)号：US20200229116A1
公开(公告)日：2020-07-16
申请号：US16827278
申请日：2020-03-23
摘要： Methods, systems, and devices for wireless communication are described that provide for discovery of resources in a wireless communications system. The wireless communications system supports operations for multiple network operating entities that share a radio frequency spectrum. To discover and perform synchronization with the wireless communications system, a common preamble may be transmitted by nodes associated with multiple network operating entities. The common preamble may include information common to each of the multiple network operating entities which may be used by a device to identify neighboring wireless nodes, available network operating entities, or sub-intervals designated for prioritized or opportunistic use by one or more network operating entities.
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公开(公告)号：US10582458B2
公开(公告)日：2020-03-03
申请号：US15460137
申请日：2017-03-15
摘要： Methods, systems, and devices for wireless communication are described. A wireless node may receive stress beacons on a channel. Each stress beacon may include an indication of an allowable interference level for a corresponding wireless node that transmitted the stress beacon on the channel. The wireless node may update a backoff window for the channel based on the allowable interference levels indicated in the stress beacons.
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公开(公告)号：US10536944B2
公开(公告)日：2020-01-14
申请号：US15486197
申请日：2017-04-12
发明人： Xiaoxia Zhang , Juan Montojo , Taesang Yoo , Siddhartha Mallik , Aleksandar Damnjanovic , Michael Mingxi Fan
摘要： Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.
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公开(公告)号：US10484935B2
公开(公告)日：2019-11-19
申请号：US15950491
申请日：2018-04-11
发明人： Junyi Li , Aleksandar Damnjanovic , Michael Mingxi Fan , Yongbin Wei , Tamer Kadous , Ahmed Sadek
摘要： Wireless communication systems and methods related to service advertising and discovery with dynamic spectrum use are provided. A user equipment (UE) receives, from a first wireless communication device, a network information signal in a spectrum. The UE receives, from a second wireless communication device, a service advertising signal based on at least a synchronization to the network information signal. The service advertising signal indicates an availability of a service. The UE transmits, to the second wireless communication device, a request for the service. The first wireless communication device and the second wireless communication device are associated with different operating entities of the spectrum.
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公开(公告)号：US10440731B2
公开(公告)日：2019-10-08
申请号：US15474554
申请日：2017-03-30
摘要： A connection may be established between a base station and a user equipment (UE) using a radio frequency shared by multiple network operating entities. Resources (e.g., a frame) may be divided into exclusive, prioritized, and opportunistic sub-intervals for a given network operating entity coexisting within the shared radio frequency spectrum. Additionally, a set of low latency sub-intervals (e.g., reserved resources) may be designated for use by the network operating entity for mission critical (MiCr) and/or autonomous uplink transmissions. The network operating entity may indicate timing information for low latency sub-intervals during a sub-interval for exclusive use by the network operating entity. The UE may then transmit MiCr and/or autonomous uplink messages using the low latency intervals without performing a medium sensing procedure. In some cases, the sub-intervals for MiCr and autonomous uplink transmissions may be for exclusive use by the network operating entity.
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公开(公告)号：US20180343588A1
公开(公告)日：2018-11-29
申请号：US15985048
申请日：2018-05-21
发明人： Ahmed Kamel Sadek , Yisheng Xue , Siddhartha Mallik , Tamer Kadous , Xiaoxia Zhang , Taesang Yoo , Michael Mingxi Fan , Aleksandar Damnjanovic , Yongbin Wei , Jing Sun
CPC分类号： H04W28/26 , H04B7/0626 , H04B7/063 , H04B17/336 , H04L5/0035 , H04L5/0048 , H04L5/0051 , H04L5/006 , H04L5/14 , H04L27/0014 , H04W16/14 , H04W52/241 , H04W74/0833 , H04W84/045
摘要： A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).
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公开(公告)号：US20180109957A1
公开(公告)日：2018-04-19
申请号：US15474196
申请日：2017-03-30
CPC分类号： H04W16/02 , H04W16/14 , H04W24/10 , H04W56/001 , H04W72/0406 , H04W72/0446 , H04W72/10 , H04W74/02
摘要： The described techniques provide for partitioning resources to coordinate wireless communications between one or more network operating entities within a shared spectrum. Partitioning resources may include assigning certain types of communication for each network operating entity to certain time intervals within a larger time frame. For example, a network operating entity may be assigned time intervals for exclusive communication, time intervals for prioritized communication with respect to other network operating entities, and time intervals for opportunistic communication.
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公开(公告)号：US20180063799A1
公开(公告)日：2018-03-01
申请号：US15460137
申请日：2017-03-15
摘要： Methods, systems, and devices for wireless communication are described. A wireless node may receive stress beacons on a channel. Each stress beacon may include an indication of an allowable interference level for a corresponding wireless node that transmitted the stress beacon on the channel. The wireless node may update a backoff window for the channel based on the allowable interference levels indicated in the stress beacons.
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29.发明申请METHOD AND APPARATUS FOR TRANSMISSION BY TIME DIVISION DUPLEXING (TDD) DEVICES USING MULTIPLE ANTENNAS 审中-公开使用多个天线的时分双工（TDD）设备传输的方法和装置公开(公告)号：US20140362744A1
公开(公告)日：2014-12-11
申请号：US14061536
申请日：2013-10-23
发明人： Hongbo YAN , Insung Kang , Daniel Fred Filipovic , Michael Mingxi Fan , Ning He , Minkui Liu
CPC分类号： H04B7/26 , H04B7/0404 , H04B7/0608 , H04W52/34 , H04W52/42
摘要： TDD devices may transmit using multiple antennas. First and second antennas having first and second receive conditions may receive a communication. In an aspect, first and second transmit conditions for the first and second antennas may be determined based on the first and second receive conditions. In an aspect, the first and second transmit conditions may be compared to select the first or second antenna for transmissions. In an aspect, the first and second receive conditions may be compared to select the first or second antenna for transmissions. In an aspect, first and second transmission conditioning values, which may determine transmission powers, may be determined based on the first and second receive conditions. A first transmission chain, associated with an active RAT or carrier, and a second transmission chain, associated with an inactive RAT or carrier, may be activated to send transmissions from the first and second antennas.
摘要翻译： TDD设备可以使用多个天线发射。 具有第一和第二接收条件的第一和第二天线可以接收通信。 在一方面，可以基于第一和第二接收条件来确定用于第一和第二天线的第一和第二发射条件。 在一个方面，可以比较第一和第二发射条件以选择用于传输的第一或第二天线。 在一个方面，可以比较第一和第二接收条件以选择用于传输的第一或第二天线。 在一方面，可以基于第一和第二接收条件来确定可以确定发射功率的第一和第二传输调节值。 可以激活与非活动RAT或载波相关联的与主动RAT或载波相关联的第一传输链和第二传输链，以从第一和第二天线发送传输。
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