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11.发明申请公开(公告)号：US20190312700A1
公开(公告)日：2019-10-10
申请号：US16405442
申请日：2019-05-07
Applicant: QUALCOMM INCORPORATED
Inventor： Makesh Pravin John Wilson , Tao Luo , Xiao feng Wang , Sony Akkarakaran , Wooseok Nam , Sumeeth Nagaraja , Kaushik Chakraborty , Shengbo Chen
Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources for new radio (NR) system operations are provided. A UE receives, from a base station, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The UE and the base station are associated with a second network of another RAT. The reference signal configuration indicates at least a number of antenna ports associated with a reference signal of the first network. The UE determines a location of the reference signal associated with the reference signal configuration and receives, from the base station, a data signal of the second network based at least on the location of the reference signal of the first network.
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公开(公告)号：US10404360B2
公开(公告)日：2019-09-03
申请号：US15707774
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind Sridharan , Kapil Bhattad , Manikandan Chandrasekar , Gowrisankar Somichetty , Alberto Rico Alvarino , Xiao feng Wang
IPC: H04L5/24 , H04B7/26 , H04J3/06 , H04L5/14 , H04L5/02 , H04W72/04 , H04L1/08 , H04L5/00 , H04W4/70 , H04L1/04 , H04W56/00
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband communication frame structure comprising a FDD frame structure or a TDD frame structure and a narrowband TDD frame structure configuration for narrowband communications from a group of narrowband TDD frame structures configurations. The apparatus may determine one or more narrowband carriers and subframes within the one or more narrowband carriers to transmit at least one of a BCH or a SIB1 based on the narrowband communication frame structure or the TDD frame structure configuration. The apparatus may transmit a PSS, an SSS, and at least one of a BCH or an SIB1 using the narrowband TDD frame structure determined for the narrowband communications. In one aspect, a carrier used for transmitting the BCH and/or the SIB may be different than a carrier used to transmit one or more of the PSS or the SSS. In another aspect, a narrowband carrier used for transmitting the BCH may be different than a narrowband carrier used to transmit one or more of the PSS or the SSS.
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公开(公告)号：US10326576B2
公开(公告)日：2019-06-18
申请号：US15948539
申请日：2018-04-09
Applicant: QUALCOMM INCORPORATED
Inventor： Makesh Pravin John Wilson , Tao Luo , Xiao feng Wang , Sony Akkarakaran , Wooseok Nam , Sumeeth Nagaraja , Kaushik Chakraborty , Shengbo Chen
Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources in a nested network system are provided. A first wireless communication device receives, from a second wireless communication device, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The first wireless communication device and the second wireless communication device are associated with a second network of another RAT. The first wireless communication device receives, from the second wireless communication device, a communication signal in the second network based on the reference signal configuration of the first network. The reference signal configuration indicates at least one of a frequency tone of a reference signal of the first network, a time period of the reference signal of the first network, or a number of antenna ports associated with the reference signal of the first network.
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公开(公告)号：US10103868B2
公开(公告)日：2018-10-16
申请号：US15436047
申请日：2017-02-17
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Peter Gaal , Hao Xu , Xiao feng Wang
IPC: H04L7/00 , H04L1/00 , H04W4/00 , H04W4/70 , H04J11/00 , H04L27/26 , H04L5/00 , H04J13/00 , H04L5/14
Abstract: In order to reduce ambiguity in NB-SSS and complexity of receiver processing, a transmitter apparatus generates an SSS, wherein the SSS signal comprises a sequence of OFDM symbols, wherein each symbol of the sequence of SSS symbols is mapped to a codeword symbol of an FEC code. Source symbols of the sequence of SSS symbols carry a PCID and frame timing information, and parity symbols of the sequence of SSS symbols introduce redundancy and coding gain. A receiver receives the NB-SSS over multiple OFDM symbols, each symbol of the SSS comprising a short ZC sequence with a combination of root index and cyclic shift. The apparatus derives path metrics using cross-correlation for each of the plurality of symbols, determines a candidate SSS source message based on the derived path metrics and coding constraints of FEC codewords, and identifies a PCID and timing information based on the candidate SSS source message.
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公开(公告)号：US20170238298A1
公开(公告)日：2017-08-17
申请号：US15424519
申请日：2017-02-03
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Hao Xu , Wanshi Chen , Xiao feng Wang , Peter Gaal , Juan Montojo , Alberto Rico Alvarino , Jing Lei , Seyed Ali Akbar Fakoorian
CPC classification number: H04W72/048 , G01S5/0236 , G01S5/0252 , H04L5/0012 , H04L5/0048 , H04L5/005 , H04L27/2607 , H04L27/2662 , H04W56/001 , H04W72/005 , H04W72/042 , H04W72/1268
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may establish narrowband communications. The base station may configure positioning reference signal (PRS) resources based at least in part on wideband or narrowband transmissions, and a UE may receive the PRS transmissions over one or more narrowband regions. The UE, may determine PRS resources and receive portions of wideband PRS transmissions that are transmitted in one or more narrowband regions of the system bandwidth. The base station may configure PRS resources separately for narrowband devices, such as according to a bandwidth of the narrowband devices or with a single PRS tone per symbol compared to two PRS tones per symbol that may be used for wideband PRS transmissions. The base station may perform positioning measurements for a UE based at least in part on timing of uplink transmissions from the UE.
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Patent Agency Ranking
公开(公告)号：US11832258B2
公开(公告)日：2023-11-28
申请号：US16863265
申请日：2020-04-30
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Jing Sun , Sony Akkarakaran , Tamer Kadous , Xiao feng Wang , Akula Reddy
IPC: H04W72/21 , H04L1/00 , H04L5/00 , H04B7/0452 , H04W72/23 , H04B7/00 , H04L1/1867 , H04L1/1829
CPC classification number: H04W72/21 , H04B7/0452 , H04L1/0025 , H04L1/0028 , H04L1/0039 , H04L5/001 , H04L5/0023 , H04L5/0053 , H04L5/0091 , H04W72/23 , H04B7/00 , H04L1/0003 , H04L1/1854 , H04L1/1887 , H04L5/0044 , H04L5/0048
Abstract: When a base station is capable of using multiple different types of waveforms for a downlink communication to a UE, the UE may waste processing resources attempting to receive and/or process the downlink communication. For example, the UE may cycle through various possible types of waveforms in an attempt to process the downlink communication. Techniques described herein use waveform signaling for downlink communications to notify the UE of a type of waveform being used for a downlink communication, thereby conserving UE resources (e.g., processing resources, memory resources, RF resources, and/or the like) that would otherwise be wasted attempting to process the downlink communication using multiple types of waveforms.
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公开(公告)号：US11140706B2
公开(公告)日：2021-10-05
申请号：US15883848
申请日：2018-01-30
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Sumeeth Nagaraja , Makesh Pravin John Wilson , Kaushik Chakraborty , Xiao feng Wang , Shengbo Chen , Wooseok Nam
Abstract: A grant may allocate resources for an uplink transmission by a user equipment (UE) in a system using beamforming, where the resources may be used by the UE to transmit data or control information during a time that a base station is listening in a certain receive beam direction. A UE may be in communication with a base station using beamformed transmissions, and the base station may send a resource grant to the UE for uplink transmissions that correspond to a receive beam direction of a beamsweeping operation. The UE may then transmit data and/or uplink control information to the base station according to the resource grant and when the base station is listening in the corresponding direction. In some examples, the UE may send the uplink transmission to the serving base station, and transmit a random access channel to another base station based on the beamsweeping operation.
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公开(公告)号：US10993256B2
公开(公告)日：2021-04-27
申请号：US16435031
申请日：2019-06-07
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Makesh Pravin John Wilson , Sumeeth Nagaraja , Kaushik Chakraborty , Wooseok Nam , Shengbo Chen , Xiao feng Wang
Abstract: A method of wireless communication includes receiving, at a user equipment (UE), a grant from a base station on a control channel, the grant including content indicating a mini-slot assigned to the UE. The method may include interpreting the grant based on a current configuration of a data channel to determine the mini-slot. The method may include communicating with the base station during the mini-slot indicated by the grant.
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公开(公告)号：US10548136B2
公开(公告)日：2020-01-28
申请号：US15889072
申请日：2018-02-05
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Sumeeth Nagaraja , Makesh Pravin John Wilson , Wooseok Nam , Shengbo Chen , Kaushik Chakraborty , Xiao feng Wang
IPC: H04W72/04 , H04W68/02 , H04B17/318 , H04W56/00
Abstract: Aspects of the present disclosure implement techniques to allow a base station to transmit a “short-page” message (e.g., paging indicators) to one or more UEs. The short-page message may be decoded by all UEs in the paging cycle and identifies a subset of UEs from the full set of UEs that are paged by the base station. Upon decoding the short page transmitted by the base station, the UE may respond with a “short-page response” to the base station on a transmit beam that offers best signal quality (e.g., low signal-to-noise ratio, transmit power, etc.). Thus, in some examples, the UE, in response to receiving a short paging message, may provide feedback to the base station such that the base station may select a transmit beam for transmission for a subsequent message (and other communications).
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公开(公告)号：US10524258B2
公开(公告)日：2019-12-31
申请号：US15724127
申请日：2017-10-03
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar Somichetty , Kapil Bhattad , Alberto Rico Alvarino , Xiao feng Wang , Manikandan Chandrasekar
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure of a group of narrowband TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.
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