-
公开(公告)号：US10194410B2
公开(公告)日：2019-01-29
申请号：US15897985
申请日：2018-02-15
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Tao Luo , Haitong Sun
Abstract: A base station may transmit a plurality of synchronization signals in a wireless communication system. The synchronization signals may be multiplexed to form a SS block that is transmitted as part of an SS burst. Each SS block may be identifiable based on SS block index information carried by its corresponding synchronization signals. In one aspect, a synchronization signal that carries SS block index information is frequency division multiplexed with a secondary synchronization signal of the SS block. In one aspect, the synchronization signal that carries the SS block index information comprises a DM-RS for a PBCH of the SS block. A UE may use the SS block index information to identify a beam on which the SS block is transmitted. The UE may use the synchronization signals as part of a cell search procedure by which it acquires time and frequency synchronization with the base station.
-
12.发明申请公开(公告)号：US20190007179A1
公开(公告)日：2019-01-03
申请号：US15981442
申请日：2018-05-16
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Tingfang Ji , Sony Akkarakaran , Haitong Sun , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described. A device—such as a base station or user equipment (UE)—may transmit a demodulation reference signal (DMRS) including signaling information in addition to channel estimation information. To improve reception of the DMRS signaling information, the transmitting device may employ data protection techniques to the signaling information and modify a data payload transmitted in the physical data channel associated with the DMRS. In one aspect, the transmitting device may modify cyclic redundancy check (CRC) bits in the payload to include verification for the signaling information. In another aspect, the transmitting device may determine a scrambling code based on the signaling information, and may scramble the payload based on the scrambling code.
-
公开(公告)号：US20180337755A1
公开(公告)日：2018-11-22
申请号：US15968569
申请日：2018-05-01
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , Hung Ly , Heechoon Lee , Peter Gaal , Muhammad Nazmul Islam , Wanshi Chen , Bilal Sadiq
CPC classification number: H04L5/0048 , H04B7/0617 , H04J11/0073 , H04J11/0076 , H04L27/2675
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first synchronization signal (SS) block that does not include remaining minimum system information (RMSI). The first SS block may indicate an offset for obtaining a second SS block that includes RMSI. The UE may determine a location of the second SS block based at least in part on the offset. Numerous other aspects are provided.
-
公开(公告)号：US20180139713A1
公开(公告)日：2018-05-17
申请号：US15806210
申请日：2017-11-07
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Hung Ly , Tingfang Ji , Haitong Sun , Wanshi Chen , Peter Gaal , Hao Xu
IPC: H04W56/00
CPC classification number: H04W56/0005 , H04J11/0083 , H04L5/0007 , H04L5/005 , H04L5/0092 , H04L27/2602 , H04L27/2613 , H04L27/2656 , H04L27/2692
Abstract: Split synchronization signal configuration for unified synchronization channels and techniques for indicating communication block boundaries in wireless communication systems that use a unified synchronization signal configuration that may be used in different communication modes are described. The disclosed split synchronization signal configuration allows the same synchronization signal configuration to be used in different communication modes (or numerologies) that operate on different frequencies. The boundary indication techniques of embodiments allow efficient indication of the beginning of a communication block (such as a frame, subframe, or slot) relative to the beginning of a unified synchronization signal configuration.
-
公开(公告)号：US11882590B2
公开(公告)日：2024-01-23
申请号：US16777410
申请日：2020-01-30
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Hung Ly , Haitong Sun , Hao Xu
IPC: H04W74/00 , H04L1/08 , H04L1/00 , H04W28/18 , H04W72/0446 , H04W74/08 , H04L5/00 , H04W72/0453
CPC classification number: H04W74/004 , H04L1/0009 , H04L1/08 , H04W28/18 , H04W72/0446 , H04W74/006 , H04W74/0833 , H04W74/0891 , H04L5/0094 , H04W72/0453
Abstract: A user equipment (UE) may perform a random access procedure to synchronize with a network for uplink and/or downlink communication. The UE may transmit a first type of random access transmission that includes transmitting a preamble or a second type of random access transmission that includes transmitting a preamble and a random access message. The second type may result in reduced delay but may have lesser SNR tolerance than the first type. In some aspects, the UE may determine whether to transmit the first type or the second type, and may transmit the first type or the second type in a random access channel portion of a slot. The random access channel portion of the slot may be occupied by portions of either the first type of random access transmission or the second type of random access transmission, thereby enabling flexible utilization of multiple types of random access procedure.
-
Patent Agency Ranking
公开(公告)号：US11671222B2
公开(公告)日：2023-06-06
申请号：US17124014
申请日：2020-12-16
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Tingfang Ji , Sony Akkarakaran , Haitong Sun , Peter Gaal
IPC: H04L5/00 , H04L1/00 , H03M13/09 , H04W72/044 , H04W72/23
CPC classification number: H04L5/0051 , H03M13/09 , H04L1/0061 , H04W72/0466 , H04W72/23
Abstract: Methods, systems, and devices for wireless communication are described. A device—such as a base station or user equipment (UE)—may transmit a demodulation reference signal (DMRS) including signaling information in addition to channel estimation information. To improve reception of the DMRS signaling information, the transmitting device may employ data protection techniques to the signaling information and modify a data payload transmitted in the physical data channel associated with the DMRS. In one aspect, the transmitting device may modify cyclic redundancy check (CRC) bits in the payload to include verification for the signaling information. In another aspect, the transmitting device may determine a scrambling code based on the signaling information, and may scramble the payload based on the scrambling code.
-
公开(公告)号：US11595920B2
公开(公告)日：2023-02-28
申请号：US17172971
申请日：2021-02-10
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Hung Ly , Tao Luo , Bilal Sadiq , Muhammad Nazmul Islam , Sundar Subramanian
Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.
-
公开(公告)号：US11419083B2
公开(公告)日：2022-08-16
申请号：US16680211
申请日：2019-11-11
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Hung Ly , Tingfang Ji , Haitong Sun , Wanshi Chen , Peter Gaal , Hao Xu
Abstract: Split synchronization signal configuration for unified synchronization channels and techniques for indicating communication block boundaries in wireless communication systems that use a unified synchronization signal configuration that may be used in different communication modes are described. The disclosed split synchronization signal configuration allows the same synchronization signal configuration to be used in different communication modes (or numerologies) that operate on different frequencies. The boundary indication techniques of embodiments allow efficient indication of the beginning of a communication block (such as a frame, subframe, or slot) relative to the beginning of a unified synchronization signal configuration.
-
公开(公告)号：US11071073B2
公开(公告)日：2021-07-20
申请号：US15926684
申请日：2018-03-20
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Hung Ly , Tao Luo , Muhammad Nazmul Islam , Bilal Sadiq
Abstract: Certain aspects of the present disclosure relate to methods and apparatus synchronization configuration in different operation modes using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications by a base station (BS) may include determining an operation mode of the BS, determining a transmission configuration of at least one of a one or more synchronization channels or a one or more synchronization signals based on the operation mode, and transmitting the one or more synchronization channels or the one or more synchronization signals based on the determined transmission configuration.
-
公开(公告)号：US10993176B2
公开(公告)日：2021-04-27
申请号：US16593738
申请日：2019-10-04
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Joseph Binamira Soriaga , Tingfang Ji , Jing Jiang , Yang Yang , June Namgoong
Abstract: Aspects of the present disclosure describe receiving, in a portion of bandwidth, a unified synchronization signal from one or more cells in a zone, and receiving, in the portion of bandwidth, a cell-specific signal from at least one cell of the one or more cells in the zone.
-
-
-
-
-
-
-
-
-
Search Results
109
records
(took 0.021 seconds)
