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公开(公告)号：US20190037525A1
公开(公告)日：2019-01-31
申请号：US15985061
申请日：2018-05-21
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao Liu , Srinivas Yerramalli , Tamer Kadous
IPC: H04W64/00 , G01S5/10 , G01S5/02 , H04L5/00 , H04B1/7143
Abstract: Methods, systems, and devices for wireless communication that support positioning techniques are described. One method may include receiving a positioning reference signal (PRS) configuration; receiving a plurality of PRS transmissions over a shared radio frequency spectrum from a plurality of base stations; and transmitting a measurement report of the PRS transmissions. The PRS transmissions may be received according to the PRS configuration. Another method may include receiving a discovery reference signal (DRS) transmission from a first base station; decoding a cell identifier of the first base station based on the DRS transmission; determining timing information of the first base station based on the DRS transmission; and transmitting a measurement report of the DRS transmission to a second base station.
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公开(公告)号：US20190014507A1
公开(公告)日：2019-01-10
申请号：US15960883
申请日：2018-04-24
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Bin Tian , Jing Sun , Taesang Yoo , Aleksandar Damnjanovic , Tamer Kadous , Yongbin Wei , Hemanth Sampath , Sameer Vermani
Abstract: Wireless communications systems and methods related to signaling medium reservation information medium sharing among multiple radio technologies (RATs) are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation signal to reserve a transmission opportunity (TXOP) in a spectrum. The spectrum is shared by multiple RATs. The reservation signal includes a plurality of first waveform sequences indicating medium reservation information detectable by the multiple RATs. The first wireless communication device and the second wireless communication device are associated with a first RAT of the multiple RATs. The first wireless communication device communicates, with the second wireless communication device using the first RAT, a communication signal in the spectrum during the TXOP.
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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
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek , Yisheng Xue , Siddhartha Mallik , Tamer Kadous , Xiaoxia Zhang , Taesang Yoo , Michael Mingxi Fan , Aleksandar Damnjanovic , Yongbin Wei , Jing Sun
CPC classification number: 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
Abstract: 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：US20180331870A1
公开(公告)日：2018-11-15
申请号：US15975166
申请日：2018-05-09
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Xiao Feng Wang , Tao Luo , Tamer Kadous , Sony Akkarakaran , Juan Montojo , Jing Lei
IPC: H04L27/26
CPC classification number: H04L27/2607 , G06F17/141 , H04L5/0007 , H04L5/0051 , H04L5/0053 , H04L27/2613 , H04L27/2614 , H04L27/2636 , H04W72/0413
Abstract: Methods, systems, and devices for wireless communication are described for slot structures using guard intervals in a single carrier waveform. Techniques provide for generating a first waveform for control information or reference signal transmissions in a first subset of symbols, and generating a second waveform for data to be transmitted in a second subset of symbols. A combination waveform may be generated based on the first and second waveforms that is transmitted to a receiver, such as by concatenating the first and second waveforms. The first waveform may be generated by appending a guard interval (GI) sequence to a reference signal or control information, and performing a discrete Fourier transform spread frequency division multiplexing (DFT-s-FDM) procedure. The second waveform may be generated by appending the GI to data to be transmitted in each symbol of the second subset of symbols, and performing the DFT-s-FDM procedure.
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公开(公告)号：US20180310267A1
公开(公告)日：2018-10-25
申请号：US15949978
申请日：2018-04-10
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao LIU , Srinivas Yerramalli , Tamer Kadous
IPC: H04W56/00
CPC classification number: H04W56/0005 , H04W56/001
Abstract: Methods, systems, and devices for wireless communication are described for synchronization for wideband coverage enhancement. A user equipment (UE) may receive a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in a subframe of a frame. In one example, the PSS may be received in each of a first plurality of consecutive symbols of the subframe. In another example, the SSS may be received in each of a second plurality of consecutive symbols of the subframe, wherein the second plurality of consecutive symbols is after the first plurality of consecutive symbols within the subframe. The UE may synchronize with a base station based at least in part on the PSS and the SSS received in the subframe. Numerous other aspects are provided.
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Patent Agency Ranking
公开(公告)号：US20180302201A1
公开(公告)日：2018-10-18
申请号：US15725762
申请日：2017-10-05
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Xiaoxia Zhang , Seyed Ali Akbar Fakoorian , Ahmed Kamel Sadek , Siddhartha Mallik , Tamer Kadous
Abstract: Sounding reference signal (SRS) transmission with implied request-to-send (RTS)/clear-to-send (CTS) operations is discussed. Two different types of SRS are defined, a legacy SRS associated with channel measurement sounding, and a contention SRS associated with contention resolution for medium sharing. The type of SRS may be distinguished based on the SRS resource associated with the particular type. Thus, legacy SRS are assigned to one SRS resource, while contention SRS are assigned to separate SRS resources. Therefore, when a neighbor node detects an SRS associated with the SRS resource for contention-type SRS, the neighbor node may know to refrain from transmission or to adjust or modify its communications depending on a spatial direction of the contention SRS.
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公开(公告)号：US20180279212A1
公开(公告)日：2018-09-27
申请号：US15659405
申请日：2017-07-25
Applicant: QUALCOMM Incorporated
Inventor： Rahul Malik , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive network search information related to the accessible bands. In some examples, the UE may receive network search information from a server that has access to the network search information. The UE may receive the network search information directly from the server or through another wireless device. In other examples, a base station may broadcast network search information on an anchor carrier. The UE may tune to a carrier of a first radio access network to receive the network search information and use the network search information to assist connecting to a second radio access network. The network search information may include, for example, a network name or network ID, a technology type, band or channel information, security information or credentials.
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公开(公告)号：US20180279156A1
公开(公告)日：2018-09-27
申请号：US15914844
申请日：2018-03-07
Applicant: QUALCOMM Incorporated
Inventor： Rahul Malik , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communication are described. A first device may receive a channel reservation request from a second device, over a shared or unlicensed radio frequency spectrum band, the channel reservation request including a first expected response time duration to receive a channel reservation response in response to the channel reservation request. The first wireless device may transmit a channel reservation response in response, and receive a directional transmission according to the channel reservation request. The second device may transmit a directional channel reservation request on a transmit beam, the directional channel reservation request including a first expected response time duration to receive a channel reservation response the first device in response to the directional channel reservation request. The second device may receive the channel reservation response during the first expected response time duration and transmit a directional transmission according to the directional channel reservation request.
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229.发明申请公开(公告)号：US20180242348A1
公开(公告)日：2018-08-23
申请号：US15899257
申请日：2018-02-19
Applicant: QUALCOMM Incorporated
Inventor： Arumugam Chendamarai Kannan , Andrei Dragos Radulescu , Chirag Sureshbhai Patel , Tamer Kadous
Abstract: A method for wireless communication at a user equipment (UE) includes receiving timing information and a time-frequency resource configuration for an uplink subframe; selecting at least a first set of time-frequency resources of the uplink subframe on which to transmit; and transmitting a grantless transmission on at least the first set of time-frequency resources. The time-frequency resource configuration identifies a correspondence between at least one receive beam in a set of one or more receive beams and at least one set of time-frequency resources in one or more sets of time-frequency resources of the uplink subframe. The first set of time-frequency resources is selected based at least in part on a transmit beam of the UE, a correspondence of the transmit beam to a receive beam in the set of one or more receive beams, and a correspondence of the receive beam to the selected first set of time-frequency resources.
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公开(公告)号：US20180054812A1
公开(公告)日：2018-02-22
申请号：US15659580
申请日：2017-07-25
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Juan Montojo , Tamer Kadous , Junyi Li , Xiaoxia Zhang , Jing Sun , Taesang Yoo , Siddhartha Mallik
Abstract: Various aspects of the disclosure relate to controlling allocations for independent links. For example, a device may dynamically control the uplink/downlink allocations for different links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). At least one device may signal the uplink/downlink allocation for the different links. If the isolation between links is high, the links may use different time division duplexed (TDD) or frequency division duplexed (FDD) subframe structures. If the isolation is low or for certain types of information (e.g., control information), the direction of transmission for one link may be constrained to be the same as the direction of transmission for another link (e.g., the links may use the same TDD/FDD frame structures). Also, sounding on different links may be time division multiplexed.
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