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公开(公告)号:US11777679B2
公开(公告)日:2023-10-03
申请号:US17698720
申请日:2022-03-18
发明人: Hung Ly , Tingfang Ji , Heechoon Lee , Haitong Sun , John Edward Smee
IPC分类号: H04L5/00 , H04L7/04 , H04L7/10 , H04L7/06 , H04J11/00 , H04L27/26 , H04W56/00 , H04W48/16 , H04W72/23
CPC分类号: H04L5/0048 , H04J11/0086 , H04L5/001 , H04L5/0098 , H04L7/042 , H04L7/06 , H04L7/10 , H04L27/2613 , H04L27/26025 , H04L27/2655 , H04W48/16 , H04W56/0015 , H04W72/23 , H04L5/0053
摘要: 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:US11223967B2
公开(公告)日:2022-01-11
申请号:US15954569
申请日:2018-04-16
发明人: Heechoon Lee , Hung Ly , Tingfang Ji , Haitong Sun
摘要: A method of wireless communications at a user equipment (UE) includes receiving, from a serving cell associated with a wireless network, a radio resource management (RRM) mode indicator that indicates a set of one or more beams for which cell measurement and reporting is to be performed by the UE; performing at least one cell measurement on at least one synchronization signal (SS) block received from at least one neighboring cell; determining, based at least in part on the RRM mode indicator, whether to decode a physical broadcast channel (PBCH) received in each SS block of the at least one SS block; and transmitting a cell measurement report, the cell measurement report based at least in part on the at least one cell measurement, the cell measurement report selectively including at least one beam index based at least in part on whether the PBCH is decoded.
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公开(公告)号:US11171771B2
公开(公告)日:2021-11-09
申请号:US16363723
申请日:2019-03-25
发明人: Hung Ly , Tingfang Ji , Heechoon Lee , Haitong Sun , John Edward Smee
IPC分类号: H04L7/04 , H04J11/00 , H04L5/00 , H04L7/06 , H04W72/12 , H04L7/10 , H04L27/26 , H04W48/16 , H04W56/00
摘要: 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:US11171758B2
公开(公告)日:2021-11-09
申请号:US15933110
申请日:2018-03-22
发明人: Jay Kumar Sundararajan , Renqiu Wang , Hao Xu , Naga Bhushan , Haitong Sun , Wanshi Chen
摘要: Methods, systems, and devices for wireless communication are described. A wireless device may transmit feedback, such as hybrid automatic repeat request (HARD) feedback for groups of code blocks rather than for an entire transport block or individual code blocks. The wireless device may transmit an acknowledgement (ACK) or negative-acknowledgement (NACK) to provide feedback for each code block group of a set of code block groups. An ACK may indicate that code blocks in a code block group were successfully decoded, and a NACK may indicate that at least one code block in a code block group was not successfully decoded. Wireless devices may support several techniques for grouping code blocks for feedback reporting to allow for efficient retransmissions and limited overhead. Different grouping schemes may be employed depending on system constraints, device capability, link conditions, or the like.
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公开(公告)号:US10785793B2
公开(公告)日:2020-09-22
申请号:US16413252
申请日:2019-05-15
发明人: Haitong Sun , Wanshi Chen
摘要: Aspects of the present disclosure provide for scheduling multiple types of uplink grants for a single user equipment to support different types of service with different traffic patterns and quality of service (QoS) requirements. In some aspects of the disclosure, the user equipment may be configured with uplink grants for different types of semi-persistent scheduling, along with a dynamic uplink grant. In some examples, the different types of semi-persistent scheduling may include dedicated semi-persistent scheduling and contention-based semi-persistent scheduling.
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公开(公告)号:US10785736B2
公开(公告)日:2020-09-22
申请号:US15663610
申请日:2017-07-28
发明人: Jing Jiang , Hao Xu , Wanshi Chen , June Namgoong , Yang Yang , Haitong Sun , Alexandros Manolakos , Tingfang Ji
IPC分类号: H04W56/00 , H04L27/26 , H04L27/00 , H04L7/04 , H04W16/14 , H04W84/04 , H04J3/06 , H04L27/38 , H04W36/00 , H04W52/02
摘要: Aspects of the disclosure relate to a coexistence of a first radio access technology (RAT), such as a fifth generation (5G) new radio (NR) technology with a second RAT, such as a narrow-band internet-of-things (NB-IOT) technology. In a first aspect, a 5G NR resource block size and an NB-IOT resource block size are defined, and a compatible alignment of an NB-IOT resource block and a 5G NR resource block is identified. An offset associated with the compatible alignment is then determined in which the offset is within a threshold offset and facilitates an identification of a valid NB-IOT resource block. In a second aspect, an offset associated with a compatible alignment of a 5G NR resource block and an NB-IOT resource block is ascertained, and a channel raster is shifted according to the offset associated with the compatible alignment.
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公开(公告)号:US10736077B2
公开(公告)日:2020-08-04
申请号:US15970524
申请日:2018-05-03
发明人: Muhammad Nazmul Islam , Bilal Sadiq , Sundar Subramanian , Navid Abedini , Haitong Sun , Tao Luo
摘要: Certain aspects of the present disclosure provide techniques for conveying information regarding a window for system information transmissions. Certain aspects of the present disclosure provide techniques for conveying information regarding a window for transmitting paging downlink control information (DCI) or paging messages.
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公开(公告)号:US10694521B2
公开(公告)日:2020-06-23
申请号:US16220767
申请日:2018-12-14
发明人: Peter Gaal , Haitong Sun , Heechoon Lee , Wanshi Chen , Hung Ly , Joseph Binamira Soriaga , Yeliz Tokgoz
摘要: 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:US10568161B2
公开(公告)日:2020-02-18
申请号:US15719492
申请日:2017-09-28
摘要: Aspects of the present disclosure provide methods and apparatus for improving UL-based mobility. As described herein, a UE may determine it has failed to decode a first keep alive (KA) signal during a wake period of a discontinuous receive (DRx) cycle and may extend the wake period to monitor for a second KA signal, in response to the determination. An access network controller may select, while a (UE) is currently served by a first transmit/receive point (TRP), a second TRP to serve the UE, configure the first TRP to transmit a first keep alive (KA) signal, in response to a chirp signal received from the UE, and configure the second TRP to transmit a second KA signal after the first KA signal transmitted by the first TRP.
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公开(公告)号:US20200037319A1
公开(公告)日:2020-01-30
申请号:US16593800
申请日:2019-10-04
发明人: Chih Ping Li , Chong Li , Jing Jiang , Wanshi Chen , Hao Xu , Haitong Sun
摘要: Transmission time interval (TTI) bundling for ultra-reliable low-latency communication (URLLC) uplink and downlink transmissions is discussed in which a base station or user equipments (UEs) determine conditions for one or more served UEs that would indicate enabling TTI bundling for data and/or control transmissions. The serving base station transmits an enablement signal signifying that TTI bundling will be performed for data and/or control transmissions. The enablement signal may include a bundle length for the transmission bundle. The data or control signal packets may then be repeatedly transmitted to the UEs a number of times corresponding to the bundle length.
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