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公开(公告)号：US10609661B2
公开(公告)日：2020-03-31
申请号：US15968598
申请日：2018-05-01
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Muhammad Nazmul Islam , Sundar Subramanian , Bilal Sadiq , Tao Luo
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for conveying timing information that changes across a transmission time interval (TTI) in which multiple redundancy versions of a physical broadcast channel (PBCH) are transmitted.
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公开(公告)号：US10560910B2
公开(公告)日：2020-02-11
申请号：US15926884
申请日：2018-03-20
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Juergen Cezanne , Shrinivas Kudekar , Navid Abedini , Muhammad Nazmul Islam
Abstract: An apparatus is provided for wireless communication at a base station with improved PBCH construction and decoding. The base station apparatus constructs a PBCH payload, wherein a bit location is selected for encoding a plurality of bits of the PBCH based on an estimated reliability for the corresponding bits location wherein the plurality of bits comprises frozen bits, unknown bits that are unknown to a user equipment, and potentially known bits that are potentially known by the user equipment. The apparatus transmits the PBCH payload in at least one of a plurality of SS blocks. A UE receiving the PBCH decodes the PBCH based on a successive decoding order. The successive decoding order may be based on an estimated reliability for the corresponding bits, e.g., in which potentially known bits are decoded prior to unknown bits.
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公开(公告)号：US20190305923A1
公开(公告)日：2019-10-03
申请号：US16268791
申请日：2019-02-06
Applicant: QUALCOMM Incorporated
Inventor： Jianghong Luo , Navid Abedini , Bilal Sadiq , Muhammad Nazmul Islam , Junyi Li , Karl Georg Hampel , Hong Cheng
Abstract: Methods, systems, and devices for wireless communications are described that provide for resource allocation in an integrated access and backhaul (IAB) network. A relay node in an IAB network may be assigned a first resource partition that is different from a second resource partition for the child and parent nodes. Based on a resource configuration (e.g., for a slot) of the second resource partition, the relay node may opportunistically utilize the second resource partition for communications. For instance, the relay node may determine a direction table based on the resource configurations of the child and parent nodes, which may be used to perform uplink or downlink communications in one or more symbols of the second resource partition. The relay node may also identify flexible symbols as free or non-free when determining the direction table.
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公开(公告)号：US10425935B2
公开(公告)日：2019-09-24
申请号：US15940596
申请日：2018-03-29
Applicant: QUALCOMM Incorporated
Inventor： Alexandros Manolakos , Bilal Sadiq , Tao Luo
Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a set of candidate resource element parameters to a wireless device. Each candidate resource element parameters may indicate a nominal number of physical resource block resource elements. The base station may then transmit downlink control information and a data transmission during a slot. The data transmission may include one or more transport blocks whose size is based on a nominal number of physical resource block resource elements. The wireless device may select one of the candidate resource element parameters from the set of candidate resource element parameters based at least in part on the downlink data, determine a transport block size for the data transmission, and decode the data transmission.
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公开(公告)号：US10404433B2
公开(公告)日：2019-09-03
申请号：US15826612
申请日：2017-11-29
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Vasanthan Raghavan , Bilal Sadiq , Sundar Subramanian , Ashwin Sampath , Junyi Li
IPC: H04L5/00 , H04L27/26 , H04W72/04 , H04B7/0408
Abstract: Techniques are described for wireless communication. A method of wireless communication at a first wireless device includes identifying a template mapping of a plurality of ports to a first plurality of frequency subcarriers and a first plurality of time periods of a template time-frequency resource grid; mapping a plurality of resource elements of an orthogonal frequency-division multiplexing (OFDM) time-frequency resource grid to the plurality of ports based at least in part on the template mapping; receiving a reference signal from a second wireless device, on a subset of the plurality of ports, based at least in part on the mapping; and decoding the reference signal from a subset of the plurality of resource elements based at least in part on the mapping. In some cases, each port of the plurality of ports is associated with a corresponding radio frequency (RF) chain.
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Patent Agency Ranking
公开(公告)号：US20190268118A1
公开(公告)日：2019-08-29
申请号：US16281329
申请日：2019-02-21
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Juergen Cezanne , Muhammad Nazmul Islam , Navid Abedini , Xiao Feng Wang , Makesh Pravin John Wilson , Sony Akkarakaran , Alexandros Manolakos
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment and/or a base station, may determine that an active transmit beam has changed from a first transmit beam to a second transmit beam, the second transmit beam being different from the first transmit beam. The wireless device may identify a reference signal identifier that is associated with the second transmit beam. The wireless device may update, based at least in part on the identifying, a channel state information (CSI) resource setting to include the reference signal identifier, wherein the CSI resource setting is associated with the active transmit beam.
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公开(公告)号：US20190260445A1
公开(公告)日：2019-08-22
申请号：US16274774
申请日：2019-02-13
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , Sony Akkarakaran , Bilal Sadiq , Xiao Feng Wang , Yan Zhou
IPC: H04B7/06 , H04W76/11 , H04B7/0456 , H04L5/00 , H04W72/10
Abstract: Methods, systems, and devices for wireless communications are described that provide for identification of beamforming parameters for a downlink transmission beam based at least in part on a set of rules that define a priority order for control transmission and data transmissions. Downlink resources may be allocated to a user equipment (UE) for a downlink transmission via a first set of downlink beamforming parameters, and the UE may also be configured to monitor a control resource set using a different set of downlink beamforming parameters within a same transmission time interval (TTI) as the downlink transmission. A UE and a base station may identify which beamforming parameters to use for the downlink transmission based on the priority order. The set of rules may define which set of downlink beamforming parameters are to be used, whether the downlink transmission is rate-matched around the control resource set, or combinations thereof.
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公开(公告)号：US10367616B2
公开(公告)日：2019-07-30
申请号：US15357812
申请日：2016-11-21
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Sundar Subramanian , Tao Luo , Juergen Cezanne , Bilal Sadiq , Junyi Li
Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a sounding reference signal (SRS) configuration for user equipment (UE). The base station may transmit an SRS grant message to a UE indicating the SRS configuration. An indication of SRS parameters may be included in the SRS grant message, and may include the SRS parameters or a location of the SRS parameters. That is, SRS parameters may be transmitted in a control channel with the SRS grant message or may be separately sent in a data channel as indicated by the indication of SRS parameters. In some cases, SRS parameters may be determined based on previously received UE feedback regarding channel conditions or power limitations. Alternatively, the base station may make its own environment measurements or assign SRS parameters autonomously. The UE may signal SRS transmissions to the base station according to the SRS grant message.
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公开(公告)号：US10356823B2
公开(公告)日：2019-07-16
申请号：US15357951
申请日：2016-11-21
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Juergen Cezanne , Sundar Subramanian , Bilal Sadiq , Junyi Li , Ashwin Sampath
Abstract: A user equipment (UE) may transmit a random access message to a wireless node using multiple symbols. The random access message may include repetitions of a random access sequence weighted by a spreading code. For example, a random access sequence may be weighted using different elements of the spreading code, where a first repetition may be weighted with a first element and a second repetition may be weighted using a second element. The weighted random access signals may be spread over multiple symbols and transmitted to the wireless node as the random access message. In some cases, a spreading code may include values of one and negative one, may be based on rows of a Hadamard matrix, or may correspond to a number of symbols used to transmit the random access message.
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公开(公告)号：US10341946B2
公开(公告)日：2019-07-02
申请号：US15967073
申请日：2018-04-30
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Sundar Subramanian , Muhammad Nazmul Islam , Tao Luo , Bilal Sadiq , Hung Ly , Heechoon Lee , Haitong Sun
Abstract: In order to improve cell detection in NR, a user equipment apparatus performs a PSS search on a first frequency raster from a group of frequency rasters. When the UE detects a PSS on the first frequency raster corresponding to a PSS hypothesis, the UE searches for an SS on a second frequency raster based at least on part on the detected PSS hypothesis on the first frequency raster. The UE may search for a plurality of hypotheses of the SS corresponding to the detected PSS hypothesis on the first frequency raster and the second frequency raster. The second frequency raster may be selected from the group of frequency rasters based at least in part on the detected PSS hypothesis or the first frequency raster on which the PSS was detected.
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