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公开(公告)号：US10512051B2
公开(公告)日：2019-12-17
申请号：US15855623
申请日：2017-12-27
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Tao Luo , Peter Gaal , Haitong Sun , Heechoon Lee
Abstract: Systems and methods herein create unified synchronization to support various network deployments in which multiple UE states (e.g., idle, connected, etc) and multiple synchronization signal periodicities (5 ms, 20 ms, etc.) and standalone/non-standalone networks may exist. Unified synchronization may be achieved at least by designating transmit frames as being even or odd. With such a designation, when a network transmits synchronization signals (SS) comprising the most significant bits (MSB)s of a frame's system frame number (SFN), a UE of any state may receive the SS according to any periodicity and blind decode the SFN's least significant bits (LSBs) with less complexity as compared to traditional systems and methods due at least to the even or odd frame designations.
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公开(公告)号：US10484999B2
公开(公告)日：2019-11-19
申请号：US15661228
申请日：2017-07-27
Applicant: QUALCOMM Incorporated
Inventor： Ravi Agarwal , Gavin Bernard Horn , Keiichi Kubota , Haitong Sun , Tingfang Ji , Kambiz Azarian Yazdi
Abstract: Certain aspects of the present disclosure provide triggers for user equipment (UE) transmissions to support uplink based mobility in a wireless communication system. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving a configuration indicating one or more triggers for transmitting on an uplink access channel, wherein the one or more triggers comprise a first indication of mobility of the UE, determining, based at least in part on detection of one of the one or more triggers, to transmit on the uplink access channel, transmitting a signal on the uplink access channel, and receiving, in response to the transmission of the signal on the uplink access channel, a second indication of at least one of: confirmation of reception of the signal or a paging notification.
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公开(公告)号：US10277429B2
公开(公告)日：2019-04-30
申请号：US15625758
申请日：2017-06-16
Applicant: QUALCOMM Incorporated
Inventor： Haitong Sun , Naga Bhushan , Tingfang Ji
IPC: H04J13/00 , H04L25/03 , H04B7/0413
Abstract: Various aspects of the disclosure relate to a codebook design that defines phase rotation on one or more layers of a codebook. This codebook may be used, for example, for sparse code multiple access (SCMA) encoding. One feature pertains to a method of communication that includes receiving at least one input signal, and mapping each of the at least one input signal to a corresponding layer of a codebook, where the codebook defines phase rotation between the layers. The method may further include generating a coded signal for each of the at least one input signal on each corresponding layer based on the codebook, and generating an output signal based on each generated coded signal.
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公开(公告)号：US09998961B2
公开(公告)日：2018-06-12
申请号：US14060350
申请日：2013-10-22
Applicant: QUALCOMM Incorporated
Inventor： Siddharth Mohan , Rohit Kapoor , Haitong Sun , Sharad Deepak Sambhwani
CPC classification number: H04W36/0083 , H04W36/0072 , H04W36/18
Abstract: Apparatus and methods of mobility management include identifying a target cell as an active set candidate. The apparatus and methods further include determining that a trigger adjustment condition exists, wherein the trigger adjustment condition triggers an adjustment of a timing value that indicates a sending time of a target cell add message to a serving cell. Moreover, the apparatus and methods include sending the target cell add message including the target cell to the serving cell based on determining that the trigger adjustment condition exists.
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公开(公告)号：US20180098349A1
公开(公告)日：2018-04-05
申请号：US15458915
申请日：2017-03-14
Applicant: QUALCOMM Incorporated
Inventor： Haitong Sun , Wanshi Chen
CPC classification number: H04W72/14 , H04W72/0406 , H04W72/042 , H04W72/0446 , H04W72/1289
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20140135010A1
公开(公告)日：2014-05-15
申请号：US14060350
申请日：2013-10-22
Applicant: QUALCOMM Incorporated
Inventor： Siddharth MOHAN , Rohit Kapoor , Haitong Sun , Sharad Deepak Sambhwani
IPC: H04W36/00
CPC classification number: H04W36/0083 , H04W36/0072 , H04W36/18
Abstract: Apparatus and methods of mobility management include identifying a target cell as an active set candidate. The apparatus and methods further include determining that a trigger adjustment condition exists, wherein the trigger adjustment condition triggers an adjustment of a timing value that indicates a sending time of a target cell add message to a serving cell. Moreover, the apparatus and methods include sending the target cell add message including the target cell to the serving cell based on determining that the trigger adjustment condition exists.
Abstract translation: 移动性管理的装置和方法包括将目标小区识别为活动集候选。 所述装置和方法还包括确定存在触发调整条件，其中触发调整条件触发指示目标小区添加消息到服务小区的发送时间的定时值的调整。 此外，该装置和方法包括：基于确定存在触发调整条件，向服务小区发送包括目标小区的目标小区添加消息。
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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.
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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.
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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.
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公开(公告)号：US11153820B2
公开(公告)日：2021-10-19
申请号：US16344448
申请日：2018-01-03
Applicant: Qualcomm Incorporated
Inventor： Sumeeth Nagaraja , Tao Luo , Aleksandar Damnjanovic , Karl Georg Hampel , Keiichi Kubota , Andrei Radulescu , Haitong Sun , Ozcan Ozturk , Peng Cheng , Linhai He
Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes receiving, by the UE, a first transmission on a beam over a radio frequency spectrum during a first time interval. The first transmission includes an indication of a subsequent physical downlink control channel (PDCCH) transmission on the beam. The indication includes information about a PDCCH in a second time interval subsequent to the first time interval. The method also includes configuring a power saving state of the UE based at least in part on the indication. A method for wireless communication at a network access device includes transmitting the first transmission to at least one UE, and transmitting the PDCCH during the second time interval.
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