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公开(公告)号：US11082947B2
公开(公告)日：2021-08-03
申请号：US16559685
申请日：2019-09-04
Applicant: QUALCOMM Incorporated
Inventor： Madhavan Srinivasan Vajapeyam , Hao Xu , Wanshi Chen , Peter Gaal , Masato Kitazoe , Miguel Griot
Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to enhanced paging procedures for devices with limited communications resources, such as machine type communication (MTC) devices and enhanced or evolved MTC (eMTC) devices. An example method generally includes determining a set of subframes corresponding to a paging occasion for the UE to receive a paging message from a base station (BS), determining, within the set of subframes, at least one narrowband region for receiving the paging message, and monitoring for the paging message in the at least one narrowband region within the set of subframes.
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公开(公告)号：US11075679B2
公开(公告)日：2021-07-27
申请号：US16305591
申请日：2017-06-22
Applicant: QUALCOMM Incorporated
Inventor： Chao Wei , Wanshi Chen , Peter Gaal , Bo Chen
Abstract: Mapping with CSI-RS resources with a code divisional multiplex (CDM) length of eight is disclosed. Such mapping allows for flexibly configuring the set of resource elements (REs) for mapping based on the available CSI-RS resources.
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公开(公告)号：US20210227505A1
公开(公告)日：2021-07-22
申请号：US17153697
申请日：2021-01-20
Applicant: QUALCOMM Incorporated
Inventor： Gabi Sarkis , Wanshi Chen , Shuanshuan Wu
IPC: H04W72/02 , H04W72/04 , H04W72/12 , H04B7/0456
Abstract: Methods, systems, and devices for wireless communications are described. Wireless communications systems may support both access links and sidelinks (e.g., D2D communication links) for communications between one or more communication devices. Wireless devices may communicate sidelink control information in two stages, where first stage sidelink control information (SCI-1) may be transmitted via a physical sidelink channel and second stage sidelink control information (SCI-2) may be transmitted via a physical shared channel. In cases where sidelink communications use several (e.g., three or more) layers, the described layer mapping techniques may provide for robust transmission of control information, higher data rates, improved spectral efficiency, etc. For example, SCI-1 and/or SCI-2 may be mapped to physical channel layers by repeating the same modulation symbols across all layers, across groupings or sets of layers, across layers associated with each codeword, etc.
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公开(公告)号：US11071106B2
公开(公告)日：2021-07-20
申请号：US16223100
申请日：2018-12-17
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Peter Gaal , Juan Montojo , Tao Luo , Wanshi Chen
IPC: H04W72/12 , H04W72/14 , H04W72/04 , H04L1/00 , H04L1/18 , H04W68/00 , H04W74/00 , H04L5/00 , H04W28/02 , H04W16/14 , H04W52/02 , H04W52/14 , H04W52/36 , H04W56/00 , H04W74/08
Abstract: Techniques are described for wireless communication. One method includes detecting a first reference signal received from a user equipment (UE) in a reference scheduled transmission burst including a plurality of contiguous transmission time intervals (TTIs) received over a shared radio frequency spectrum band; identifying a reference TTI in which the first reference signal is received; determining a contention window size usable by the UE to contend for access to the shared radio frequency spectrum band; and transmitting an indication of the determined contention window size to the UE.
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公开(公告)号：US11064329B2
公开(公告)日：2021-07-13
申请号：US14254528
申请日：2014-04-16
Applicant: QUALCOMM Incorporated
Inventor： Hao Xu , Wanshi Chen , Peter Gaal
Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to techniques for control-less operation for machine-type communications (MTC).
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Patent Agency Ranking
公开(公告)号：US11057175B2
公开(公告)日：2021-07-06
申请号：US16259941
申请日：2019-01-28
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Peter Gaal , Hao Xu , Wanshi Chen , Yongbin Wei , Xiao Feng Wang , Renqiu Wang , Seyed Ali Akbar Fakoorian , Madhavan Srinivasan Vajapeyam , Alberto Rico Alvarino , Juan Montojo
Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.
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公开(公告)号：US11051327B2
公开(公告)日：2021-06-29
申请号：US16537422
申请日：2019-08-09
Applicant: QUALCOMM Incorporated
Inventor： Seyedkianoush Hosseini , Peter Gaal , Huilin Xu , Wanshi Chen , Tao Luo
Abstract: Rate-matching and channel estimation are disclosed for new radio (NR) user equipments (UEs). An NR UE obtains coexistence information of neighboring legacy operations including common reference signal (CRS) ports, CRS frequency pattern, and a legacy subframe type corresponding to the NR transmission segments. The NR UE determines legacy CRS occasion(s) coinciding with shared downlink direction operations for the NR and legacy operations, and rate-matches reception of NR downlink transmissions around the CRS occasion(s). In other aspects, an NR UE detects overlap of a downlink signal with downlink control channel candidate of a configured control resource set (CORESET). The UE ends monitoring of the candidate within a search space of the CORESET in response to the detected overlap, detects a collision between a scheduled demodulation reference signal (DMRS) and the downlink signal occasion, and discards all or part of the CORESET.
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公开(公告)号：US11050523B2
公开(公告)日：2021-06-29
申请号：US16407963
申请日：2019-05-09
Applicant: QUALCOMM Incorporated
Inventor： Seyedkianoush Hosseini , Wanshi Chen , Peter Gaal
Abstract: Techniques are described herein for adjusting control signaling for a subsequent message based on a number of retransmissions of the subsequent message. The number of repetitions of the subsequent message may be used to modify the parameters of the subsequent message and/or modify the control signaling related to the parameters of the subsequent message. Downlink control information may include a plurality of fields related to one or more parameters of the subsequent message. A size or a range of at least some of the plurality of fields may vary based on the number of repetitions of the subsequent message. The number of repetitions may be based on a repetition factor.
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公开(公告)号：US20210195656A1
公开(公告)日：2021-06-24
申请号：US17196854
申请日：2021-03-09
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Wanshi Chen , Seyong Park
Abstract: Methods, systems, and devices for wireless communications are described for a two-step random access channel (RACH) procedure in which uplink random access preamble and message transmission occasions may span multiple transmission slots. Reference signal resources for transmitting a reference signal with a first random access message of the two-step RACH procedure may include at least one symbol in each of the multiple transmission slots. The reference signal resources, reference signal sequence, or both, may be identified based on a particular uplink random access message transmission occasion, random access preamble transmission occasion, random access preamble sequence configuration, or any combinations thereof.
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公开(公告)号：US11032036B2
公开(公告)日：2021-06-08
申请号：US16101255
申请日：2018-08-10
Applicant: QUALCOMM Incorporated
Inventor： Yang Yang , Wanshi Chen , Peter Gaal , Heechoon Lee , Joseph Binamira Soriaga , Chih-Ping Li , Bilal Sadiq
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for handling carrier aggregation (CA) involving component carriers (CCs) having different numerologies.
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