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公开(公告)号：US10721628B2
公开(公告)日：2020-07-21
申请号：US16533230
申请日：2019-08-06
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Aleksandar Damnjanovic , Yongbin Wei , Tamer Kadous , Xiaoxia Zhang , Jing Sun
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may determine that a communication is to be transmitted on a shared spectrum during a channel access interval not reserved for the communication. The transmitter device may determine, based at least in part on determining that the communication is to be transmitted, that a detection power of a listen-before-talk (LBT) operation satisfies a threshold. The transmitter device may transmit, after a coordinated rate control region and based at least in part on the detection power of the LBT operation satisfying the threshold, a reservation request signal associated with the communication. The transmitter device may transmit the communication before an end of the channel access interval based at least in part on a response to the reservation request signal. Numerous other aspects are provided.
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公开(公告)号：US10701729B2
公开(公告)日：2020-06-30
申请号：US14728859
申请日：2015-06-02
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Peter Gaal , Wanshi Chen , Aleksandar Damnjanovic , Yongbin Wei , Durga Prasad Malladi , Hao Xu , Madhavan Srinivasan Vajapeyam , Srinivas Yerramalli
Abstract: Protection of transmission and reception of clear channel assessment (CCA)-exempt transmission (CET) is disclosed in which channel reserving signals or protection signals may be transmitted by the transmitter or receiver of the CET. The transmitted signals may be received by the neighboring access points that could potentially cause interference with the reception of the CET.
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313.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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314.发明授权公开(公告)号：US10651961B2
公开(公告)日：2020-05-12
申请号：US16160949
申请日：2018-10-15
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Yongbin Wei , Durga Prasad Malladi , Siddhartha Mallik , Xiaoxia Zhang , Hao Xu
Abstract: Techniques are described for wireless communication. A first method includes receiving downlink control information for a first UE based at least in part on a group identifier associated with a NOMA group including the first UE and at least a second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE. A second method includes receiving downlink control information for a first UE, the downlink control information for the first UE including an indication of at least a second UE; receiving downlink control information for the second UE based at least in part on the indication of at least the second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE and the downlink control information for the second UE.
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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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Patent Agency Ranking
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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317.发明申请公开(公告)号：US20190364579A1
公开(公告)日：2019-11-28
申请号：US16401979
申请日：2019-05-02
Applicant: Qualcomm Incorporated
Inventor： Xiaoxia Zhang , Andrei Dragos Radulescu , Srinivas Yerramalli , Yongbin Wei , Tamer Kadous , Jing Sun
Abstract: Wireless communications systems and methods related to serving user equipment devices (UEs) using multi-transmission/reception point (TRP) techniques with dynamic varying TRP clusters are provided. A wireless communication device receives, from a first group of one or more TRPs, a first signal during a first time period. The wireless communication device receives, from a second group of one or more TRPs, a second signal during a second time period, wherein at least one TRP in the second group is not in the first group. The first signal may include a first transport block (TB) and the second signal may include a second TB different from the first TB. Alternatively, the first signal may include a first portion of a TB and the second signal includes a second portion of the TB different from the first portion.
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公开(公告)号：US10362487B2
公开(公告)日：2019-07-23
申请号：US15451263
申请日：2017-03-06
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Peter Gaal , Durga Prasad Malladi , Tao Luo , Aleksandar Damnjanovic , Naga Bhushan , Tingfang Ji , Yongbin Wei
Abstract: Long term evolution (LTE)/LTE-Advanced (LTE-A) deployments with unlicensed spectrum leverage more efficient LTE communication aspects over unlicensed spectrum, such as over WIFI radio access technology. In order to accommodate such communications, various downlink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.
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公开(公告)号：US10341914B2
公开(公告)日：2019-07-02
申请号：US14624787
申请日：2015-02-18
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Durga Prasad Malladi , Xiliang Luo , Yongbin Wei
Abstract: Antenna selection and reassignment in multiple radio access technology (RAT) communication systems with unlicensed spectrum is disclosed. Aspects include a user equipment (UE) monitoring for a channel reserving signal in each frame from multiple transmission sources. If no channel reserving signal is detected, then the UE reassigns one or more of the antennas previously assigned to the transmission sources with no activity detected. Additional aspects include base stations that determine a clear channel assessment (CCA) status for each of unlicensed carrier designated for transmission to a UE. The base station will transmit a receive antenna usage adjustment signal to the UE based on the determined CCA status.
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公开(公告)号：US10313916B2
公开(公告)日：2019-06-04
申请号：US14937017
申请日：2015-11-10
Applicant: QUALCOMM Incorporated
Inventor： Jun Wang , Ozcan Ozturk , Miguel Griot , Ravindra Manohar Patwardhan , Onkar Jayant Dabeer , Madhavan Srinivasan Vajapeyam , Jelena Damnjanovic , Aleksandar Damnjanovic , Taesang Yoo , Yongbin Wei , Durga Prasad Malladi
Abstract: Methods, systems, and devices are described for decreasing user plane latency in a wireless communication system. This may include routing a portion of bearer traffic to or from a UE through a local or serving gateway, or within or between base stations, rather than via the core network. In some examples, techniques for selected internet protocol flow ultra-low latency (SIPFULL) for systems in which users may have subscribed to enhanced services may be employed. The network may, for instance, authorize SIPFULL functionalities for UEs per access point name (APN) based on individual services subscribed by the UE to improve overall quality of service (QoS). In some examples, a UEs latency requirements or SIPFULL authorizations may affect mobility operations.
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