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61.发明申请公开(公告)号：US20200186309A1
公开(公告)日：2020-06-11
申请号：US16789191
申请日：2020-02-12
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Madhavan Srinivasan Vajapeyam , Wanshi Chen , Peter Gaal , Tao Luo , Durga Prasad Malladi , Yongbin Wei
Abstract: Techniques are described for wireless communication. A first method may include receiving at a user equipment (UE) over an unlicensed radio frequency spectrum band an indication of a time window associated with a transmission of a synchronization signal, and monitoring the unlicensed radio frequency spectrum band during the time window to receive a synchronization signal from a base station. A second method may include transmitting an indication of a time window associated with a transmission of a synchronization signal; performing a plurality of clear channel assessments (CCAs) on an unlicensed radio frequency spectrum band during the time window; and transmitting the synchronization signal over the unlicensed radio frequency spectrum band at a transmission time during the time window. The transmission time may be based at least in part on a result of at least one of the CCAs.
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公开(公告)号：US10660074B2
公开(公告)日：2020-05-19
申请号：US15955323
申请日：2018-04-17
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Peter Gaal , Shimman Arvind Patel , Aleksandar Damnjanovic
Abstract: Various aspects described herein relate to communicating in a wireless network. A resource grant comprising an indicator of whether to transmit a demodulation reference signal (RS) for an uplink control channel or an uplink data channel can be received from a network entity. It can be determined whether to transmit the RS in at least one transmission time interval (TTI) based at least in part on the indicator.
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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
Applicant: QUALCOMM Incorporated
Inventor： Junyi Li , Aleksandar Damnjanovic , Michael Mingxi Fan , Yongbin Wei , Tamer Kadous , Ahmed Sadek
Abstract: 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：US10541851B2
公开(公告)日：2020-01-21
申请号：US15975207
申请日：2018-05-09
Applicant: QUALCOMM Incorporated
Inventor： Rahul Malik , Aleksandar Damnjanovic , Andrei Dragos Radulescu , Srinivas Yerramalli , Tamer Kadous , Yongbin Wei
Abstract: Methods, systems, and devices for wireless communication are described. A base station may perform an access procedure to obtain access to a shared radio frequency spectrum band during a measurement window and generate a synchronization signal (SS) burst comprising a plurality of SS blocks. The base station may perform a beam sweeping first transmission of the SS burst over the shared radio frequency spectrum based at least in part on the access procedure. In the first transmission or a second transmission, the base station may transmit at least one of a first indication of a time of access to the shared radio frequency spectrum band with respect to the measurement window, a second indication of a transmission beam associated with the SS block, and a third indication of a quantity of remaining SS blocks from the plurality of SS blocks to follow the SS block in the measurement window.
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公开(公告)号：US10511373B2
公开(公告)日：2019-12-17
申请号：US16512229
申请日：2019-07-15
Applicant: Qualcomm Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , Jing Sun , Andrei Dragos Radulescu , Aleksandar Damnjanovic , Arumugam Chendamarai Kannan
IPC: H04B7/06
Abstract: Methods, systems, and devices for wireless communication are described that support overriding a beam monitoring pattern for control channel transmissions based on channel conditions between a user equipment and a base station. A base station may select a beam monitoring pattern for transmitting control channel transmissions, which may include a pattern in which two or more beams are used for control channel transmissions. In the event that a first beam of the beams used in the beam monitoring pattern meets certain metrics, the use of one or more additional beams according to the beam monitoring pattern may be overridden and transmissions continued using the first beam. The metrics for continuing use of the first beam may include channel quality metrics, a number of consecutive successful transmissions using the first beam, one or more other metrics, or any combination thereof.
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Patent Agency Ranking
公开(公告)号：US10462812B2
公开(公告)日：2019-10-29
申请号：US15955471
申请日：2018-04-17
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Damnjanovic , Tao Luo , Srinivas Yerramalli , Peter Gaal , Hao Xu , Wanshi Chen
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A base station transmits a provisional grant uplink assignment to a set of UEs. When a UE receives the provisional grant uplink assignment, the UE performs a clear channel assessment (CCA) operation on a secondary component carrier (SCC) based on the provisional grant UL assignment, the SCC being a contention-based carrier. Then, the UE transmits a schedule request (SR) on the SCC when the CCA operation succeeds. The base station transmits grant confirmation(s) on the SCC in response to the detected SR(s). Once the UE receives a grant confirmation on the SCC in response to the SR, the UE transmits data on the SCC.
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67.发明申请公开(公告)号：US20190327051A1
公开(公告)日：2019-10-24
申请号：US16419268
申请日：2019-05-22
Applicant: QUALCOMM Incorporated
Inventor： Shimman Arvind PATEL , Wanshi Chen , Juan Montojo , Peter Gaal , Seyedkianoush Hosseini , Aleksandar Damnjanovic , Hao Xu
IPC: H04L5/00 , H04B7/0413 , H04W72/04
Abstract: The present methods and apparatus enable transmission of an interlaced reference signal for two UEs using a comb structure. In some aspects, the present methods and apparatus may allocate resources and indicate whether a first UE and a second UE are to transmit DM-RS with a comb structure in a single slot based on the allocation. Further, in some aspects, the present methods and apparatus may allocate resources and transmit information indicating whether a first UE is to transmit DM-RS in a first slot or in both a first slot and a second slot within a subframe.
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公开(公告)号：US10433339B2
公开(公告)日：2019-10-01
申请号：US15090859
申请日：2016-04-05
Applicant: QUALCOMM Incorporated
Inventor： Shimman Arvind Patel , Wanshi Chen , Aleksandar Damnjanovic
Abstract: Wireless devices may exchange data related to multiple available random access procedures for network access. A random access procedure of the available random access procedures may be selected, and a random access message transmitted based on the selected random access procedure. Available random access procedures may include procedures that provide for a different number of random access messages or that are for use in communications having different transmission time intervals (TTIs). For example, a random access procedure may include a total of two random access messages or a total of four random access messages for accessing the wireless communications network. The use of one random access procedure instead of the other may depend on a wireless device's location relative to its serving base station.
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公开(公告)号：US10432386B2
公开(公告)日：2019-10-01
申请号：US15191452
申请日：2016-06-23
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Shimman Arvind Patel , Juan Montojo , Hao Xu , Aleksandar Damnjanovic
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify a configuration for uplink and downlink communications that defines subframe configuration options for each subframe of a frame. For example, the configuration may establish parameters for time division duplexing (TDD) operation between a base station and a user equipment (UE). The wireless device may determine a constraint for a subframe of the frame based on the configuration and determine an adaptive subframe configuration based on the constraint. The adaptive subframe configuration may include one or several downlink symbol periods and one or several uplink symbol periods. The wireless device may communicate during the subframe according to the adaptive subframe configuration rather than the original configuration. The adaptive subframe may be constrained by the identified uplink and downlink configuration, which may avoid disruption to UEs.
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公开(公告)号：US20190289486A1
公开(公告)日：2019-09-19
申请号：US16435209
申请日：2019-06-07
Applicant: QUALCOMM Incorporated
Inventor： Madhavan Srinivasan Vajapeyam , Aleksandar Damnjanovic , Peter Gaal , Tao Luo
Abstract: UE-aided channel selection within unlicensed frequency bands. A base station may communicate with UEs using LTE/LTE-A carrier waveforms (e.g., configured as a secondary cell) in the unlicensed frequency band. The base station may configure UEs for wide-band interference feedback for channels in the unlicensed frequency band. The measurements of wide-band signal strength may be performed by the UEs on channels for which the base station is not currently transmitting, or during silent periods of a configured secondary cell. The UEs may feedback an average total received power over a measurement bandwidth for one or more frequency channels of the unlicensed frequency band. The base station may receive the wide-band signal strength feedback from the UEs and identify potential frequency channels for channel selection for the secondary cell based on its own measurements of the candidate channels, and the wide-band signal strength feedback from the UEs.
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