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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
Applicant: QUALCOMM Incorporated
Inventor： Chih Ping Li , Chong Li , Jing Jiang , Wanshi Chen , Hao Xu , Haitong Sun
Abstract: 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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公开(公告)号：US10542416B2
公开(公告)日：2020-01-21
申请号：US16420695
申请日：2019-05-23
Applicant: QUALCOMM Incorporated
Inventor： Hung Dinh Ly , Heechoon Lee , Haitong Sun , Tingfang Ji , Wanshi Chen , Keiichi Kubota
Abstract: Various aspects described herein relate to techniques for mobility mode selection in uplink-based and downlink-based mobility in wireless communications systems. In an aspect, a method for wireless communications may include determining that a user equipment (UE) is operating in a first mobility mode, determining whether the UE satisfies at least one condition associated with mobility of the UE for mobility mode selection, and selecting a second mobility mode based on a determination that the UE satisfies the at least one condition, wherein each of the first mobility mode and the second mobility mode is an uplink mobility mode or a downlink mobility mode. The techniques described herein may apply to different communications technologies, including the 5th Generation (5G) New Radio (NR) communications technology.
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公开(公告)号：US10530623B2
公开(公告)日：2020-01-07
申请号：US16028312
申请日：2018-07-05
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Muhammad Nazmul Islam , Bilal Sadiq , Peter Gaal , Haitong Sun
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for generating and communicating reference signals. Certain aspects provide a method for communicating reference signals. The method includes selecting a demodulation reference sequence (DMRS) of a plurality of DMRSs for transmission in a synchronization signal block (SSB) based on a half-frame in which the SSB is transmitted. The method further includes transmitting the selected DMRS in the SSB.
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公开(公告)号：US10476623B2
公开(公告)日：2019-11-12
申请号：US15943011
申请日：2018-04-02
Applicant: QUALCOMM Incorporated
Inventor： Hung Ly , Haitong Sun
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may identify a synchronization signal (SS) block index associated with a SS block; scramble a physical broadcast channel (PBCH), associated with the SS block, based at least in part on the SS block index; and transmit the SS block including a tertiary synchronization signal (TSS) and the PBCH, wherein the TSS includes information that identifies the SS block index associated with the SS block, and wherein the TSS is frequency division multiplexed with the PBCH in two or more orthogonal frequency-division multiplexed (OFDM) symbols of the SS block. Numerous other aspects are provided.
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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.
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Patent Agency Ranking
16.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.
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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.
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公开(公告)号：US20180054334A1
公开(公告)日：2018-02-22
申请号：US15625758
申请日：2017-06-16
Applicant: QUALCOMM Incorporated
Inventor： Haitong Sun , Naga Bhushan , Tingfang Ji
IPC: H04L25/03
CPC classification number: H04L25/03929 , H04B7/0413 , H04J13/00 , H04J13/0003 , H04L25/03936 , H04L25/03942
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：US20180048349A1
公开(公告)日：2018-02-15
申请号：US15588431
申请日：2017-05-05
Applicant: QUALCOMM Incorporated
Inventor： Haitong Sun , Naga Bhushan , Tingfang Ji
IPC: H04B1/7075 , H04J13/00 , H04J13/10 , H04W72/04 , H04L1/00
CPC classification number: H04B1/7075 , H04B2201/698 , H04B2201/7073 , H04J13/0007 , H04J13/10 , H04J2013/0096 , H04L1/0042 , H04L1/0057 , H04L25/00 , H04W72/0466
Abstract: Disclosed are methods and apparatus used in wireless communications. The methods and apparatus establish a codebook for use in sparse code multiple access (SCMA) encoded communications, in particular. The SCMA codebook is configured to set the codebook for at least one layer (i.e., a user) to include a constellation of points having a first grouping of constellation points located at first radial distance from an origin in a complex plane and a second grouping of constellation points located at a second radial distance from the origin. This codebook arrangement provides increased gains at receivers by optimizing the constellation shape to improve the distance between constellation points (i.e., SCMA codebook performance), and in particular more robust performance when encountering amplitude and phase misalignment in uplink (UL) multiple access.
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20.发明授权Apparatus, method, and system for uplink power control in a heterogeneous wireless communication network 有权用于异构无线通信网络中的上行链路功率控制的装置，方法和系统公开(公告)号：US09319997B2
公开(公告)日：2016-04-19
申请号：US14026986
申请日：2013-09-13
Applicant: QUALCOMM Incorporated
Inventor： Siddharth Mohan , Rohit Kapoor , Haitong Sun , Sharad Deepak Sambhwani
CPC classification number: H04W52/244 , H04W52/146 , H04W52/40
Abstract: Apparatus and methods are disclosed for power control of uplink transmissions by a user equipment in a way that can reduce interference to neighbor cells. Various aspects of the disclosure decouple the power control for uplink data transmissions from the power control for uplink for a control channel transmissions. For example, one type of power control command may be utilized to control the power the UE utilizes to transmit data channels such as the DPDCH and/or the E-DCH (e.g., the E-DPDCH and the E-DPCCH). Further, another type of power control command may be utilized to control the power the UE utilizes to transmit control channels such as the HS-DPCCH. In this way, the uplink data channels, which can cause substantial interference to neighbor cells, can be power controlled by those neighbor cells to reduce that interference. Moreover, the control channel corresponding to the downlink data transmissions can be controlled by the downlink serving cell, thus ensuring reliable feedback corresponding to those downlink transmissions.
Abstract translation: 公开了用于以可以减少对相邻小区的干扰的方式由用户设备对上行链路传输进行功率控制的装置和方法。 本公开的各个方面将用于上行链路数据传输的功率控制与用于控制信道传输的上行链路的功率控制分离。 例如，可以使用一种类型的功率控制命令来控制UE用于发送诸如DPDCH和/或E-DCH（例如，E-DPDCH和E-DPCCH）的数据信道的功率。 此外，另一种类型的功率控制命令可以用于控制UE用于发送诸如HS-DPCCH的控制信道的功率。 以这种方式，可以对相邻小区造成实质性干扰的上行链路数据信道可以由那些相邻小区进行功率控制，以减少干扰。 此外，对应于下行链路数据传输的控制信道可以由下行链路服务小区进行控制，从而确保与那些下行链路传输相对应的可靠反馈。
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