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公开(公告)号：US20180091287A1
公开(公告)日：2018-03-29
申请号：US15480189
申请日：2017-04-05
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Hao Xu , Wanshi Chen , Tingfang Ji
CPC classification number: H04L7/0066 , H04L5/005 , H04L5/0053 , H04L5/0076 , H04L5/0094 , H04L27/2613 , H04L27/2666 , H04L27/2692 , H04W4/70
Abstract: Wireless communication devices are adapted to facilitate scalable synchronization channels in a wireless communications system. According to one example, a wireless communication device may identify a reference synchronization channel including a reference bandwidth and a reference numerology, where the reference numerology includes a reference subcarrier spacing and a reference cyclic prefix. The reference synchronization channel may be scaled according to a type of communication, resulting in a scaled synchronization channel including a scaled bandwidth and a scaled numerology compatible with the communication type. According to another example, a wireless communication device may determine a communication type employed by the device for wireless communications, and may search for a particular scaled synchronization channel based on the determined communication type. Other aspects, embodiments, and features are also included.
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公开(公告)号：US20180077710A1
公开(公告)日：2018-03-15
申请号：US15644663
申请日：2017-07-07
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Jing Jiang , Tingfang Ji
IPC: H04W72/04
Abstract: Various aspects of the disclosure relate to scaled numerology for orthogonal frequency division multiplexing (OFDM) waveforms or other forms of communication. First information can be encoded into a first numerology at a first set of tones and first synchronization information can be encoded into a second numerology at second set of tones. In addition, second synchronization information can be encoded into a guard band in such a way that this information can be interpreted under either the first numerology or the second numerology.
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公开(公告)号：US11882073B2
公开(公告)日：2024-01-23
申请号：US17844430
申请日：2022-06-20
Applicant: QUALCOMM Incorporated
CPC classification number: H04L5/0051 , H04L5/0053 , H04L5/1469 , H04L5/14 , H04W72/23
Abstract: Techniques for signaling dynamic region for PRACH transmission are described. In an aspect, the disclosure describes a method for receiving, at a user equipment (UE), an indication of a number of symbols that the UE is to use when transmitting via a physical random access channel (PRACH), and transmitting, by the UE, via the PRACH over one or more slots based on the number of symbols. In another aspect, the disclosure describes a method for generating, at a network device, an indication of a number of symbols that a UE is to use when transmitting PRACH, transmitting, by the network device, the indication to the UE. A UE and network device configuration as well as apparatuses and computer-readable medium related to these methods are also described.
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公开(公告)号：US11785565B2
公开(公告)日：2023-10-10
申请号：US15951721
申请日：2018-04-12
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Hung Ly , Tao Luo
CPC classification number: H04W56/0015 , H04J11/0073 , H04J11/0076 , H04L5/005 , H04L5/0048 , H04L5/0053 , H04L5/0073 , H04B7/0695 , H04W76/15
Abstract: Certain aspects of the present disclosure provide mechanisms for band-dependent configuration of synchronization signal transmission, as well band-dependent synchronization signal designs. The band-dependent configuration and design may help optimize certain transmission parameters (such as antenna ports and transmission power) to current operating bands.
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公开(公告)号：US11770855B2
公开(公告)日：2023-09-26
申请号：US15785173
申请日：2017-10-16
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Hao Xu , Tingfang Ji
IPC: H04W74/08
CPC classification number: H04W74/0833
Abstract: Certain aspects of the present disclosure are generally directed to design of random access channel (RACH) procedures. For example, certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The method generally includes receiving an indication of a RACH procedure capability of a network entity, and selecting a first RACH procedure or a second RACH procedure, based on the indication. The UE may then communicate one or more messages with the network entity based on the selected first RACH procedure or the selected second RACH procedure.
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Patent Agency Ranking
公开(公告)号：US11570698B2
公开(公告)日：2023-01-31
申请号：US17161162
申请日：2021-01-28
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, from at least one cell of a zone of multiple cells, a zone-specific signal related to the zone of multiple cells, wherein the zone of multiple cells operate using synchronized timing, acquiring, based on the zone-specific signal, a timing synchronization with a cell of the zone of multiple cells, and communicating with the cell based on the timing synchronization.
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公开(公告)号：US11368271B2
公开(公告)日：2022-06-21
申请号：US16598807
申请日：2019-10-10
Applicant: QUALCOMM Incorporated
Abstract: Techniques for signaling dynamic control region for PRACH transmission are described. In an aspect, the disclosure describes a method for receiving, at a user equipment (UE), an indication of a number of control symbols that the UE is to assume when transmitting physical random access channel (PRACH), and transmitting, by the UE, the PRACH over one or more slots based on the number of control symbols. In another aspect, the disclosure describes a method for generating, at a network device, an indication of a number of control symbols that a UE is to assume when transmitting PRACH, transmitting, by the network device, the indication to the UE. A UE and network device configuration as well as apparatuses and computer-readable medium related to these methods are also described.
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公开(公告)号：US11290251B2
公开(公告)日：2022-03-29
申请号：US16913921
申请日：2020-06-26
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Tingfang Ji , Heechoon Lee , Haitong Sun , John Edward Smee
IPC: H04L7/04 , H04L7/10 , H04L7/06 , H04L5/00 , H04W72/12 , H04J11/00 , H04L27/26 , H04W56/00 , H04W48/16
Abstract: Various aspects described herein relate to techniques for synchronization channel design and signaling in wireless communications systems (e.g., a 5th Generation (5G) New Radio (NR) system). In an aspect, a method includes identifying a frequency band supported by a user equipment (UE), identifying one or more frequency locations based on the identified frequency band, and the one or more frequency locations are a subset of synchronization raster points used for synchronization signal transmission. The method further includes searching for at least one synchronization signal based on the one or more identified frequency locations.
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公开(公告)号：US11172483B2
公开(公告)日：2021-11-09
申请号：US16908129
申请日：2020-06-22
Applicant: QUALCOMM Incorporated
Inventor： Peter Gaal , Haitong Sun , Heechoon Lee , Wanshi Chen , Hung Ly , Joseph Binamira Soriaga , Yeliz Tokgoz
Abstract: Aspects of the present disclosure describe determining an uplink channel raster for determining frequency location of an uplink channel over which to transmit uplink communications to a base station. Uplink communications can be transmitted to the base station over the uplink channel. The uplink channel raster can be shifted, in frequency, with respect to a legacy uplink channel raster of a legacy communication technology to facilitate coexistence, in an uplink carrier, of the uplink channel and one or more uplink channels of the legacy communication technology.
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公开(公告)号：US11140715B2
公开(公告)日：2021-10-05
申请号：US15793223
申请日：2017-10-25
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Hao Xu , Wanshi Chen
Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes receiving an indication of at least one receive capability of a network access device; transmitting a first message of a random access channel (RACH) procedure; receiving a random access response (RAR) message in response to transmitting the first message; and interpreting the RAR message according to a format based at least in part on the received indication. A method for wireless communication at a network access device includes transmitting an indication of at least one receive capability of the network access device; receiving, from a UE, a first message of a RACH procedure; and transmitting a RAR message to the UE in response to receiving the first message. The RAR message has a format based at least in part on the at least one receive capability of the network access device.
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