公开(公告)号：US09161308B2

公开(公告)日：2015-10-13

申请号：US14010209

申请日：2013-08-26

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Rashid Ahmed Akbar Attar ,  Christopher Gerard Lott ,  Joseph B. Soriaga ,  Jun Hu

IPC: H04W52/02 ,  H04W76/04 ,  H04W52/44 ,  H04W52/14

CPC classification number: H04W52/0251 ,  H04W52/146 ,  H04W52/44 ,  H04W76/28 ,  Y02D70/21 ,  Y02D70/25

Abstract: Access terminals are adapted to facilitate discontinuous transmission (DTX) employable during active transmissions. According to one example, an access terminal may be actively transmitting a plurality of frames on a reverse link channel. The access terminal can autonomously implement a DTX operation during the active reverse link transmissions, in which a transmitter circuit is powered down for periods of time less than a duration of one frame. As a result, reverse link transmissions are punctured during the powered down periods. Other aspects, embodiments, and features are also included.

Abstract translation: 接入终端适于促进在主动传输期间可使用的不连续传输（DTX）。 根据一个示例，接入终端可以在反向链路信道上主动发送多个帧。 接入终端可以在主动反向链路传输期间自主地实现DTX操作，其中发射机电路在低于一帧的持续时间的时间段内断电。 结果，反向链路传输在断电期间被穿孔。 还包括其他方面，实施例和特征。

公开(公告)号：US20150057039A1

公开(公告)日：2015-02-26

申请号：US14528716

申请日：2014-10-30

Applicant: QUALCOMM Incorporated

Inventor： Joseph B Soriaga ,  Christopher Gerard Lott ,  Jing Sun ,  Kambiz Azarian Yazdi ,  Rashid Ahmed Akbar Attar ,  Radhika Gowaikar ,  Donna Ghosh

IPC: H04H20/22 ,  H04W4/06

CPC classification number: H04H20/22 ,  H04B7/024 ,  H04B7/12 ,  H04W4/06 ,  H04W88/085

Abstract: Distributed antenna systems (DASs) can include a plurality of spatially separated remote antenna units. According to at least one example, a first group of remote antenna units can simulcast downlink transmissions on a first carrier with a particular sector identity (ID). A second group of remote antenna units, including at least one different remote antenna unit from the first group, can simulcast downlink transmissions on a second carrier with the same sector ID. According to at least one other example, two or more remote antenna units which include respective coverage areas that are non-adjacent to one another can be employed to simulcast downlink transmissions.

Abstract translation: 分布式天线系统（DAS）可以包括多个空间分离的远程天线单元。 根据至少一个示例，第一组远程天线单元可以在具有特定扇区标识（ID）的第一载波上联播下行链路传输。 包括来自第一组的至少一个不同的远程天线单元的第二组远程天线单元可以在具有相同扇区ID的第二载波上联播下行链路传输。 根据至少另一个示例，可以采用包括彼此不相邻的各个覆盖区域的两个或更多个远程天线单元来联播下行链路传输。

公开(公告)号：US20150023258A1

公开(公告)日：2015-01-22

申请号：US14134898

申请日：2013-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： Jun Hu ,  Rashid Ahmed Akbar Attar ,  Joseph B. Soriaga ,  Jing Sun ,  Huang Lou

IPC: H04W76/02

CPC classification number: H04W76/16 ,  H04W8/18 ,  H04W72/1215 ,  H04W76/15 ,  H04W88/06

Abstract: A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single transmit chain may be used to transmit uplink traffic associated with the first call and uplink traffic associated with the second call. A timesharing schedule for the transmit chain may determine when the uplink traffic associated with the first call is transmitted and when the uplink traffic associated with the second call is transmitted on the transmit chain. Downlink traffic associated with the first and second calls may be received using different receive chain. Downlink traffic associated with the first and second calls may be received using the same receive chain.

Abstract translation: 提供了一种方法，装置和计算机程序产品。 该装置可以被配置为建立第一呼叫以进行第一订阅，并且在维持第一呼叫的同时接受用于第二订阅的第二呼叫。 单个发射链可用于传送与第一呼叫相关联的上行链路业务和与第二呼叫相关联的上行链路业务。 用于发送链的分时计划可以确定何时发送与第一呼叫相关联的上行链路业务以及何时在发送链上发送与第二呼叫相关联的上行链路业务。 可以使用不同的接收链来接收与第一和第二呼叫相关联的下行链路业务。 可以使用相同的接收链接收与第一和第二呼叫相关联的下行链路业务。

公开(公告)号：US20150023230A1

公开(公告)日：2015-01-22

申请号：US14156439

申请日：2014-01-15

Applicant: QUALCOMM Incorporated

Inventor： Jun Hu ,  Rashid Ahmed Akbar Attar ,  Joseph B. Soriaga ,  Jing Sun ,  Huang Lou

IPC: H04W72/12 ,  H04L5/14

CPC classification number: H04W72/1205 ,  H04L5/14 ,  H04W4/16 ,  H04W8/18 ,  H04W72/1215 ,  H04W76/15 ,  H04W76/16 ,  H04W76/25 ,  H04W76/28 ,  H04W88/06

Abstract: A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single RF transmit chain may be scheduled for uplink transmissions associated with the first call and uplink transmissions associated with the second call. A timesharing schedule for the transmit chain may determine timing for the uplink transmissions associated with the first call is transmitted and when the uplink transmissions associated with the second call is transmitted on the transmit chain. Downlink transmissions associated with the first and second calls may be received using different receive chain. Downlink transmissions associated with the first and second calls may be received using the same receive chain.

Abstract translation: 提供了一种方法，装置和计算机程序产品。 该装置可以被配置为建立第一呼叫以进行第一订阅，并且在维持第一呼叫的同时接受用于第二订阅的第二呼叫。 可以为与第一呼叫相关联的上行链路传输和与第二呼叫相关联的上行链路传输调度单个RF发射链。 用于发送链的分时计划可以确定与第一呼叫相关联的上行链路传输的定时被发送，以及何时在发送链上发送与第二呼叫相关联的上行链路传输。 可以使用不同的接收链接收与第一和第二呼叫相关联的下行链路传输。 可以使用相同的接收链接收与第一和第二呼叫相关联的下行链路传输。

公开(公告)号：US20130281028A1

公开(公告)日：2013-10-24

申请号：US13645163

申请日：2012-10-04

Applicant: Qualcomm Incorporated

Inventor： Jing Sun ,  Peter P. Ang ,  Ameer Dabbagh ,  Rashid Ahmed Akbar Attar

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04B1/7103 ,  H04B1/7115

Abstract: Apparatus and methods are disclosed for selecting between a Rake receiver and an interference cancellation engine (ICE) for receiving forward link signals in a wireless communication network. Selection can be based on one or more of various factors in the channel. These factors can include an average SINR of at least one of the first receiver or the second receiver, a dispersion of a downlink channel, a flatness metric, a number of locked fingers at the first receiver or the second receiver, or a size of an Active Set. Other aspects, features, and embodiments are claimed and described.

Abstract translation: 公开了用于在Rake接收机和用于在无线通信网络中接收前向链路信号的干扰消除引擎（ICE）之间进行选择的装置和方法。 选择可以基于通道中的一个或多个各种因素。 这些因素可以包括第一接收机或第二接收机中的至少一个的平均SINR，下行链路信道的分散，平坦度量度，在第一接收机或第二接收机处的锁定手指的数量，或者 活动集 要求和描述其他方面，特征和实施例。

公开(公告)号：US12295043B2

公开(公告)日：2025-05-06

申请号：US18243234

申请日：2023-09-07

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Sony Akkarakaran ,  Muhammad Nazmul Islam ,  Tao Luo

IPC: H04W74/0833 ,  H04W36/00 ,  H04W76/10

Abstract: This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.

公开(公告)号：US12295035B2

公开(公告)日：2025-05-06

申请号：US17906509

申请日：2020-04-16

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Changlong Xu ,  Chih-Hao Liu ,  Ozcan Ozturk ,  Yisheng Xue

IPC: H04W74/0816 ,  H04L27/26 ,  H04W72/25 ,  H04W74/08

Abstract: Wireless communications systems and methods related to use of cyclic prefix (CP) extensions for channel occupancy time (COT) sharing among sidelink user equipment devices (UEs) are provided. A first UE detects a first sidelink transmission in a COT, the COT for sharing with multiple sidelink UEs including the first sidelink UE. The first UE may determine a CP extension length for transmitting a second sidelink transmission after the first sidelink transmission, where a gap duration between the first sidelink transmission and the second sidelink transmission satisfies a listen-before-talk (LBT) gap time threshold. The first UE may apply a CP extension having the CP extension length to the second sidelink transmission and transmit, to a second sidelink UE, the second sidelink transmission with the CP extension.

公开(公告)号：US12279251B2

公开(公告)日：2025-04-15

申请号：US18542325

申请日：2023-12-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Jing Sun ,  Lik Hang Silas Fong

IPC: H04W72/1263 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described for improving sidelink communication reliability. In some examples, a user equipment (UE) may map allocated sidelink resources from a logical domain to a physical domain, where the mapped resources may include greater frequency diversity in the physical domain A frequency range of a sidelink control channel or of a sidelink data channel may be greater in the physical domain than in the logical domain after the mapping. In some examples, sidelink communications may be associated with an aggregation factor that represents a number of repetitions of a sidelink communication. In this example, a UE may repeat a sidelink communication within a contention-based resource pool a number of times before receiving feedback in order to increase communication reliability. A first UE may communicate a sidelink communication with a second UE using a resource mapping or repetitions of the sidelink communication.

公开(公告)号：US12279239B2

公开(公告)日：2025-04-15

申请号：US17738976

申请日：2022-05-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Mostafa Khoshnevisan

IPC: H04W72/04 ,  H04W72/0446 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A waveform for communications between a user equipment (UE) and a base station may be generated or decoded based on a resource allocation of a slot for the communications. In some cases, the UE may receive control information from the base station that indicates the resource allocation for the slot, where the slot contains a defined number of symbol periods (e.g., 14 symbol periods), or the defined number of symbol periods and at least one additional symbol period. The waveform may then be generated (e.g., transmitted) or decoded (e.g., received) based on the number of symbol periods in the slot. Additionally or alternatively, the UE and base station may identify an operating mode of the UE, identify allowed resource allocation sizes for generating or decoding the waveform, and generate or decode the waveform based on the allowed resource allocation sizes.

公开(公告)号：US12273225B2

公开(公告)日：2025-04-08

申请号：US18317840

申请日：2023-05-15

Applicant: QUALCOMM Incorporated

Inventor： Zhifei Fan ,  Jing Sun ,  Piyush Gupta

IPC: H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a reader device may transmit a delta message that indicates a frequency difference between a data tone frequency for the reader device and a helper tone frequency. The reader device may transmit a data tone signal at the data tone frequency and a helper tone signal at the helper tone frequency. The helper tone signal may be a waveform that is shared among multiple reader devices. Numerous other aspects are described.