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公开(公告)号：US10575185B2
公开(公告)日：2020-02-25
申请号：US15800363
申请日：2017-11-01
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 spectrum use negotiations are provided. A first wireless communication device transmits, to a controlling entity of a spectrum, a spectrum use request for a local operator to use the spectrum for a time period. The first wireless communication device receives, from the controlling entity, a spectrum use grant indicating that the local operator is promoted from a first priority to a second priority for accessing the spectrum during the time period. The first wireless communication device communicates with a second wireless communication device in the spectrum during the time period based on the second priority, where at least the first wireless communication device or the second wireless communication device is associated with the local operator.
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公开(公告)号：US20200022029A1
公开(公告)日：2020-01-16
申请号：US16584366
申请日：2019-09-26
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
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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3.发明申请公开(公告)号：US20180103472A1
公开(公告)日：2018-04-12
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：US11284308B2
公开(公告)日：2022-03-22
申请号：US16584366
申请日：2019-09-26
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
IPC分类号： H04W28/26 , H04W52/24 , H04L5/00 , H04W16/14 , H04B7/06 , H04L27/00 , H04L5/14 , H04B17/336 , H04W74/08 , H04W84/04
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：US11102782B2
公开(公告)日：2021-08-24
申请号：US16828638
申请日：2020-03-24
发明人： Naga Bhushan , Michael Mingxi Fan , Peter Black
摘要： Various aspects described herein relate to techniques of spectrum sharing in beacon-assisted multi-tier wireless communications systems (e.g., 5G New Radio). A method of spectrum sharing in multi-tier wireless communications is provided that may include generating, at a first apparatus, a beacon signal including information of spectrum usage, wherein the information includes at least one or more of a pilot reference, resources allocation, one or more usage entities, or one or more sharing parameters, and sending the beacon signal to at least a second apparatus, wherein the first apparatus and the second apparatus are in a same tier or different tiers.
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公开(公告)号：US20200059854A1
公开(公告)日：2020-02-20
申请号：US16661350
申请日：2019-10-23
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：US20180359685A1
公开(公告)日：2018-12-13
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：US20180242163A1
公开(公告)日：2018-08-23
申请号：US15688122
申请日：2017-08-28
摘要： Co-existence mechanisms for shared spectrum and unlicensed spectrum are disclosed. Several base stations, from one or more network operators, share a communication spectrum in a base non-contention procedure state. When a given base station determines that communications with its served user equipments (UEs) suffers a diminished quality, the base station transmits a diminished quality indicator in response. Subsequent communications with the served UEs over the shared spectrum would then occur using a contention-based procedure state triggered by the diminished quality indicator. The triggering of the contention-based procedure may be made by the base station on either sending the diminished quality indicator or receiving a similar indicator from a neighbor base station, or by an indication from a central controller making a determination to initiate contention-based procedures based on flags received from the neighboring base stations.
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公开(公告)号：US20180110063A1
公开(公告)日：2018-04-19
申请号：US15474554
申请日：2017-03-30
CPC分类号： H04W72/1263 , H04W16/14 , H04W72/0446 , H04W74/006 , H04W74/04 , H04W76/10
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：US20180110022A1
公开(公告)日：2018-04-19
申请号：US15474546
申请日：2017-03-30
CPC分类号： H04W56/002 , H04W16/14 , H04W56/001 , H04W72/0446 , H04W72/10
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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