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11.发明公开公开(公告)号：US20230336265A1
公开(公告)日：2023-10-19
申请号：US18307347
申请日：2023-04-26
Applicant: QUALCOMM Incorporated
Inventor： Jing SUN , Tao LUO , Tamer KADOUS , Juan MONTOJO , Xiao Feng WANG , Sony AKKARAKARAN
CPC classification number: H04J11/0086 , H04W48/12 , H04L5/0053 , H04J2011/0096 , H04J11/0093 , H04W72/23
Abstract: User equipment associated with a legacy network may utilize a bottom-to-top search technique to identify relevant control channel samples. Generating a control channel that is configured for the bottom-to-top search technique may lead to poor performance in a single-carrier waveform, which may be disadvantageous as networks move toward New Radio. In some aspects, described herein, a base station generates a control channel that is configured to minimize gaps in the control channel, and a user equipment performs a top-to-bottom search technique to identify relevant control channel samples. By using the top-to-bottom search technique, degradation of single-carrier waveforms is reduced and efficiency is improved.
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公开(公告)号：US20200128549A1
公开(公告)日：2020-04-23
申请号：US16721623
申请日：2019-12-19
Applicant: QUALCOMM Incorporated
Inventor： Nachiappan VALLIAPPAN , Ahmed Kamel SADAK , Peter GAAL , Tamer KADOUS , Andrei Dragos RADULESCU
Abstract: Techniques for managing re-contention on a shared communication medium are disclosed. In order to facilitate re-contending for access to the communication medium, an access point may adjust one or more uplink transmission parameters associated with a triggering condition for invoking a contention timer. In addition or as an alternative, the access point may mute transmission on the communication medium during one or more symbol periods designated for transmission. In addition or as an alternative, the access point may configure a timing advance to create a re-contention gap.
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公开(公告)号：US20190387532A1
公开(公告)日：2019-12-19
申请号：US16432470
申请日：2019-06-05
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao LIU , Srinivas YERRAMALLI , Tamer KADOUS
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may schedule a plurality of repetitions of at least one system information block for a plurality of dwells within a hop cycle, wherein a subset of dwells, of the plurality of dwells within the hop cycle, includes a resource allocated for a respective portion of a corresponding repetition of a corresponding system information block of the plurality of repetitions of the at least one system information block. The base station may transmit, during the subset of dwells of the plurality of dwells within the hop cycle, the respective portion of the corresponding repetition of the corresponding system information block or another signal punctured into the respective portion of the corresponding repetition of the corresponding system information block. Numerous other aspects are provided.
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公开(公告)号：US20190342035A1
公开(公告)日：2019-11-07
申请号：US16258265
申请日：2019-01-25
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia ZHANG , Jing SUN , Tamer KADOUS
Abstract: Various aspects related to ACK/NACK feedback for multi-TRP transmission scenarios are described. A base station, may send, to a UE, information indicating PDCCH monitoring occasions for each of a plurality of TRPs. In one aspect, the base station may send information indicating whether ACK/NACK feedback across the plurality of TRPs is allowed. The base station may send rules to the UE for performing ACK/NACK feedback bundling for providing feedback to the plurality of TRPs. The base station may also send information indicating a DAI definition for interpreting DAIs transmitted by the plurality of TRPs in corresponding PDCCH transmissions indicating whether the DAIs are independent or joint. The base station may receive a joint ACK/NACK feedback from the UE in a PUCCH based on the rules, or may receive multiple ACK/NACK feedback from the UE in a PUCCH for a first TRP independent from a second TRP.
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公开(公告)号：US20190320452A1
公开(公告)日：2019-10-17
申请号：US16357462
申请日：2019-03-19
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia ZHANG , Jing SUN , Tamer KADOUS
Abstract: Methods, systems, and devices for wireless communications, and more particularly for facilitating autonomous uplink transmission (AUL) using shared (e.g., in a synchronized manner among one or more operators) radio frequency spectrum are described. In aspects, a method of wireless communication over a shared medium may include determining, by at least one user equipment (UE) served by a base station associated with a first operator, access is obtained to the shared medium for a transmission opportunity (TXOP) by the base station based on autonomous uplink resources in the TXOP allocated to at least one UE served by the base station and/or an indication from the at least one UE of autonomous uplink data, and transmitting the autonomous uplink data from the at least one UE to the base station.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20190021080A1
公开(公告)日：2019-01-17
申请号：US16030348
申请日：2018-07-09
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Jing SUN , Tamer KADOUS
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.
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17.发明申请公开(公告)号：US20190020528A1
公开(公告)日：2019-01-17
申请号：US16030327
申请日：2018-07-09
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Jing SUN , Tamer KADOUS
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.
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公开(公告)号：US20190020522A1
公开(公告)日：2019-01-17
申请号：US16012095
申请日：2018-06-19
Applicant: QUALCOMM Incorporated
Inventor： Jing SUN , Xiao Feng WANG , Tao LUO , Tamer KADOUS
Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to single-carrier waveform generation for transmission. An exemplary method generally includes concatenating a first sequence of data samples with samples of a known sequence to generate a first series of samples, performing a discrete Fourier transform (DFT) on the first series of samples to generate a first series of frequency-domain samples, mapping the first series of frequency-domain samples and first zero values to first tones of a system bandwidth, performing an inverse discrete Fourier transform (IDFT) on the mapped first series of frequency-domain samples and the mapped first zero values to generate first time-domain samples of a first orthogonal frequency domain multiplexing (OFDM) symbol, and transmitting the first OFDM symbol as a single-carrier waveform in a first period.
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公开(公告)号：US20180338299A1
公开(公告)日：2018-11-22
申请号：US16048218
申请日：2018-07-27
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao LIU , Srinivas YERRAMALLI , Tamer KADOUS
CPC classification number: H04W68/02 , H04L5/0048 , H04W8/005 , H04W16/14 , H04W28/04 , H04W72/0446
Abstract: In an embodiment, an apparatus (e.g., eNB) pages UEs on a shared communication. The apparatus obtains paging message(s) for transmission to UEs with different coverage levels. The apparatus transmits an extended common ePDCCH, followed by a paging ePDCCH, followed by repetitive transmissions of the paging message(s) over a plurality of PDSCH subframes. In a further embodiment, the apparatus obtains first and second sets of paging messages for transmission to different paging groups. The apparatus establishes non-overlapping POWs for the first and second paging groups to avoid a paging ePDCCH collision.
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公开(公告)号：US20180332551A1
公开(公告)日：2018-11-15
申请号：US15855442
申请日：2017-12-27
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao LIU , Srinivas YERRAMALLI , Tamer KADOUS
IPC: H04W56/00
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. In one example, the SSS may be received in a symbol that is after a symbol in which the PSS is received, and after a set of symbols in which a set of other synchronization signals is received. In another example, the PSS may be received in each of a first plurality of consecutive symbols, and the SSS may be received in each of a second plurality of consecutive symbols, 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. Numerous other aspects are provided.
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