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公开(公告)号：US10887941B2
公开(公告)日：2021-01-05
申请号：US15240040
申请日：2016-08-18
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Zhifei Fan , Jing Sun , Juan Montojo , Siddhartha Mallik , Aleksandar Damnjanovic , Xiaoxia Zhang
Abstract: Techniques are described for wireless communication. One method includes receiving, in a downlink portion of a transmission structure on a shared radio frequency spectrum band, an uplink grant for an uplink data portion of the transmission structure. The transmission structure includes the downlink portion, followed by and time domain multiplexed with an uplink control portion, followed by and time domain multiplexed with the uplink data portion. The method also includes retaining access to the shared radio frequency spectrum band by transmitting an unscheduled transmission during the uplink control portion of the transmission structure.
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公开(公告)号：US20200383140A1
公开(公告)日：2020-12-03
申请号：US16996232
申请日：2020-08-18
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek , Aleksandar Damnjanovic
Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a first signal; listen, after transmitting the first signal and during a listening interval, for a second signal from a user equipment (UE) affected by the first signal, the second signal being indicative of interference at the first UE; receive the second signal during the listening interval; and initiate an interference management procedure based on receipt of the second signal.
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公开(公告)号：US20200374702A1
公开(公告)日：2020-11-26
申请号：US16871867
申请日：2020-05-11
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Andrei Dragos Radulescu , Yongbin Wei
Abstract: Synchronous communications mode detection is disclosed for unlicensed spectrum communications. To detect synchronous mode communications, an observing node monitors on-off transitions of communication transmissions on a shared communication spectrum. The observing node detects the on-off transition spacing of the on-off transitions over a sliding window of a detection period duration. The node may determine the number of candidate synchronous on-off transition spacings of the detected on-off transition spacings that are equal to an integer multiple of a synchronization period. If the number of candidate synchronous on-off transition spacings exceeds a threshold value the observing node will declare detection of a synchronous operation mode of the shared communication spectrum.
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公开(公告)号：US10834603B2
公开(公告)日：2020-11-10
申请号：US16227121
申请日：2018-12-20
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Siddhartha Mallik , Taesang Yoo , Juan Montojo , Aleksandar Damnjanovic , Junyi Li
Abstract: Wireless communications systems and methods related to reservation signal transmission and detection for spectrum sharing are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation request (RRQ) signal to reserve a transmission opportunity (TXOP) in a shared spectrum, wherein the shared spectrum is shared by a plurality of network operating entities, and wherein the first wireless communication device and the second wireless communication device are associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device transmits a reservation response (RRS) signal indicating an interference tolerance level of the first wireless communication device.
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公开(公告)号：US10827491B2
公开(公告)日：2020-11-03
申请号：US14870543
申请日：2015-09-30
Applicant: QUALCOMM Incorporated
Inventor： Peter Gaal , Srinivas Yerramalli , Tao Luo , Durga Prasad Malladi , Naga Bhushan , Yongbin Wei , Aleksandar Damnjanovic , Hao Xu , Wanshi Chen , Shimman Arvind Patel , Xiaoxia Zhang
Abstract: Techniques are described for wireless communication. A first method includes receiving from a base station an indication of a set of one or more uplink interlaces of an unlicensed radio frequency spectrum band allocated for a sounding reference signal, and transmitting the sounding reference signal for a user equipment (UE) over the indicated set of one or more uplink interlaces of the unlicensed radio frequency spectrum band. A second method includes receiving an indication of an interlace of an unlicensed radio frequency spectrum band allocated for a physical uplink control channel (PUCCH) transmission, and transmitting a scheduling request and a buffer status report over the indicated interlace.
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Patent Agency Ranking
公开(公告)号：US20200305210A1
公开(公告)日：2020-09-24
申请号：US16866788
申请日：2020-05-05
Applicant: QUALCOMM Incorporated
Inventor： Naga Bhushan , Durga Prasad Malladi , Yongbin Wei , Peter Gaal , Tao Luo , Tingfang Ji , Gavin Bernard Horn , Wanshi Chen , Aleksandar Damnjanovic
IPC: H04W76/15 , H04L1/00 , H04L27/26 , H04L5/00 , H04L5/14 , H04L27/00 , H04W48/10 , H04W72/08 , H04W74/00 , H04W28/02 , H04W74/08 , H04W24/02 , H04W28/08 , H04W28/16 , H04W72/04 , H04W56/00 , H04W74/04 , H04W16/14
Abstract: Methods and apparatuses are described for wireless communications. A first method includes transmitting a first Orthogonal Frequency-Division Multiple Access (OFDMA) communications signal to a wireless node in a licensed spectrum, and transmitting, concurrently with the transmission of the first OFDMA communications signal, a second OFDMA communications signal to the wireless node in an unlicensed spectrum. A second method includes receiving a first Orthogonal Frequency-Division Multiple Access (OFDMA) communications signal from a wireless node in a licensed spectrum, and receiving, concurrently with the reception of the first OFDMA communications signal, a second OFDMA communication signal from the wireless node in an unlicensed spectrum. A third method includes generating a periodic gating interval for a cellular downlink in an unlicensed spectrum, and synchronizing at least one boundary of the periodic gating interval with at least one boundary of a periodic frame structure associated with a primary component carrier of the cellular downlink.
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公开(公告)号：US20200305080A1
公开(公告)日：2020-09-24
申请号：US16821930
申请日：2020-03-17
Applicant: QUALCOMM Incorporated
Inventor： Yisheng XUE , Xiaoxia Zhang , Jing Sun , Aleksandar Damnjanovic , Yongbin Wei
Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a configuration including a set of signature waveforms for a micro-sleep mode of operation in shared spectrum, and may transmit the configuration to at least one user equipment (UE) served by the base station. Additionally, a UE may receive a configuration including a set of signature waveforms for a micro-sleep mode of operation in shared spectrum. The UE may detect at least one signature waveform of the set of signature waveforms, and in response to detecting the at least one signature waveform, operate in the micro-sleep mode for a period of time.
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公开(公告)号：US20200236558A1
公开(公告)日：2020-07-23
申请号：US16748227
申请日：2020-01-21
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Yongbin Wei
Abstract: Wireless communications systems and methods related to automatic frequency coordination (AFC) for spectrum sharing among multiple network operating entities are provided. A first wireless communication device transmits, to a spectrum access coordination entity, a spectrum access request. The first wireless communication device receives, from the spectrum access coordination entity in response to the spectrum access request, a configuration including at least a medium access protocol parameter for performing a medium access procedure in a spectrum shared by a plurality of network operating entities.
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公开(公告)号：US10716129B2
公开(公告)日：2020-07-14
申请号：US16415851
申请日：2019-05-17
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Aleksandar Damnjanovic , Kiran Kumar Somasundaram , Tao Luo , Onkar Jayant Dabeer , Durga Prasad Malladi , Naga Bhushan , Yongbin Wei , Peter Gaal , Wanshi Chen , Anastasios Stamoulis , Hao Xu , Xiaoxia Zhang
Abstract: Techniques are described for wireless communication. A first method may include inserting, in a first transmission using a first radio access technology (RAT), a channel occupancy identifier for a second transmission using a second RAT. The first method may also include transmitting the first transmission having the channel occupancy identifier over an unlicensed radio frequency spectrum band. A second method may include receiving, at a receiver operated using a first RAT, a channel occupancy identifier for a transmission using a second RAT. The channel occupancy identifier may be received over an unlicensed radio frequency spectrum band. The second method may also include decoding the channel occupancy identifier to identify a backoff period, and refraining from accessing the unlicensed radio frequency spectrum band using the first RAT based at least in part on the identified backoff period.
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公开(公告)号：US10701692B2
公开(公告)日：2020-06-30
申请号：US15199214
申请日：2016-06-30
Applicant: QUALCOMM Incorporated
Inventor： Madhavan Srinivasan Vajapeyam , Vikas Jain , Kiran Kumar Somasundaram , Aleksandar Damnjanovic , Fang Chen
IPC: H04W72/04 , H04J11/00 , H04L5/00 , H04L29/12 , H04W8/08 , H04W28/02 , H04W72/14 , H04W84/12 , H04W88/02
Abstract: Techniques are described for wireless communication. One method includes identifying a priority parameter associated with data to be transmitted on an uplink carrier; selecting, based at least in part on the identified priority parameter, between a first type of message for requesting uplink resources in a shared radio frequency spectrum band or a dedicated radio frequency spectrum band, or a second type of message for requesting uplink resources in the dedicated radio frequency spectrum band; and transmitting the selected type of message.
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