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公开(公告)号：US20150312934A1
公开(公告)日：2015-10-29
申请号：US14792283
申请日：2015-07-06
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Xiaoxia Zhang , Peter Gaal , Juan Montojo , Xiliang Luo , Tao Luo , Jelena Damnjanovic , Aleksandar Damnjanovic
CPC classification number: H04W72/1284 , H04B7/0632 , H04L1/1861 , H04L5/0055 , H04W52/325 , H04W52/34 , H04W52/42
Abstract: Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In some aspects, a user equipment (UE) receives a data transmission on at least one component carrier (CC) in a plurality of configured CCs. The UE determines acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission and determines an uplink channel for sending the ACK/NACK information. When the ACK/NACK information is sent on a PUCCH, the UE may perform power control based on which CCs in the plurality of configured CCs data is received. When the ACK/NACK information is sent on a PUSCH, the UE may determine a number of resource elements based on its CC configuration.
Abstract translation: 公开了一种在多载波无线通信网络中确认数据传输的技术。 在一些方面，用户设备（UE）在多个配置的CC中的至少一个分量载波（CC）上接收数据传输。 UE确定用于数据传输的确认/否定确认（ACK / NACK）信息，并确定用于发送ACK / NACK信息的上行链路信道。 当在PUCCH上发送ACK / NACK信息时，UE可以基于接收到多个配置的CC中的哪个CC来执行功率控制。 当在PUSCH上发送ACK / NACK信息时，UE可以基于其CC配置来确定多个资源元素。
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2.发明申请公开(公告)号：US20150237548A1
公开(公告)日：2015-08-20
申请号：US14624787
申请日：2015-02-18
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Durga Prasad Malladi , Xiliang Luo , Yongbin Wei
CPC classification number: H04W36/06 , H04L5/0076 , H04L27/0006
Abstract: Antenna selection and reassignment in multiple radio access technology (RAT) communication systems with unlicensed spectrum is disclosed. Aspects include a user equipment (UE) monitoring for a channel reserving signal in each frame from multiple transmission sources. If no channel reserving signal is detected, then the UE reassigns one or more of the antennas previously assigned to the transmission sources with no activity detected. Additional aspects include base stations that determine a clear channel assessment (CCA) status for each of unlicensed carrier designated for transmission to a UE. The base station will transmit a receive antenna usage adjustment signal to the UE based on the determined CCA status.
Abstract translation: 公开了具有非许可频谱的多个无线电接入技术（RAT）通信系统中的天线选择和重新分配。 方面包括对来自多个传输源的每帧中的信道保留信号进行监视的用户设备（UE）。 如果没有检测到信道保留信号，则UE重新分配先前分配给传输源的一个或多个天线，没有检测到活动。 另外的方面包括为指定用于向UE传输的未授权载体中的每一个确定清楚信道评估（CCA）状态的基站。 基站将基于所确定的CCA状态向UE发送接收天线使用调整信号。
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3.发明申请公开(公告)号：US20140161043A1
公开(公告)日：2014-06-12
申请号：US14181953
申请日：2014-02-17
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Xiliang Luo , Ke Liu
IPC: H04W56/00
CPC classification number: H04W56/001 , H04J11/005 , H04J11/0069 , H04J11/0093 , H04W24/02 , H04W72/042
Abstract: Methods and apparatus for selecting samples for secondary synchronization signal (SSS) detection are described. Several alternatives are provided for efficient cell identifier detection. In a first alternative, multiple bursts of a signal received from a cell are sampled with non-uniform spacing between sampling intervals to determine a sequence for cell identification. In a second alternative, samples of a first and a second signal received from a stronger cell are cancelled, and a sequence for detecting a weaker cell is determined by reducing effects of the samples of a third signal received from the weaker cell which do not overlap with the primary synchronization signal (PSS) or SSS of the stronger cell. In a third alternative, a sequence for detecting a weaker cell is determined by reducing effects of any sampled bursts that correspond to a high transmission power portion of a signal from a stronger cell.
Abstract translation: 描述了用于选择二次同步信号（SSS）检测的样本的方法和装置。 提供了多种替代方案用于高效的小区标识符检测。 在第一替代方案中，从采样间隔之间以不均匀的间隔对从小区接收的信号的多个突发进行采样，以确定用于小区识别的序列。 在第二替代方案中，从较强小区接收到的第一和第二信号的样本被取消，并且用于检测较弱小区的序列是通过减少从不重叠的较弱小区接收的第三信号的样本的影响来确定的 具有较强小区的主同步信号（PSS）或SSS。 在第三替代方案中，用于检测较弱小区的序列通过减少对应于来自较强小区的信号的高发射功率部分的任何采样突发的影响来确定。
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公开(公告)号：US11722264B2
公开(公告)日：2023-08-08
申请号：US17099727
申请日：2020-11-16
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Juan Montojo , Xiliang Luo
IPC: H04L1/1829 , H04L5/00 , H04L1/1607
CPC classification number: H04L1/1861 , H04L1/1614 , H04L1/1864 , H04L5/0044
Abstract: Bits for acknowledgement (ACK) and/or negative acknowledgement (NAK) may be allocated based on whether a special subframe configuration in a TDD configuration permits downlink transmission. For carrier aggregation, ACK/NAK bits may be allocated only to special subframes in component carriers (CCs) which permit downlink transmission. Also, for example, ACK/NAK bits may be allocated to all CC special subframes if a single CC is configured to allow downlink transmission on one of its special subframes. ACK/NAK bits may also be allocated to all special subframes.
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公开(公告)号：US10341914B2
公开(公告)日：2019-07-02
申请号：US14624787
申请日：2015-02-18
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Durga Prasad Malladi , Xiliang Luo , Yongbin Wei
Abstract: Antenna selection and reassignment in multiple radio access technology (RAT) communication systems with unlicensed spectrum is disclosed. Aspects include a user equipment (UE) monitoring for a channel reserving signal in each frame from multiple transmission sources. If no channel reserving signal is detected, then the UE reassigns one or more of the antennas previously assigned to the transmission sources with no activity detected. Additional aspects include base stations that determine a clear channel assessment (CCA) status for each of unlicensed carrier designated for transmission to a UE. The base station will transmit a receive antenna usage adjustment signal to the UE based on the determined CCA status.
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Patent Agency Ranking
公开(公告)号：US09730193B2
公开(公告)日：2017-08-08
申请号：US13975850
申请日：2013-08-26
Applicant: QUALCOMM INCORPORATED
Inventor： Xiliang Luo , Peter Gaal , Wanshi Chen , Juan Montojo
CPC classification number: H04W72/0406 , H04L1/06 , H04L1/1893 , H04L5/003
Abstract: Provided is a method for wireless communication which includes transmitting codewords according to an initial transmission rank, receiving downlink transmissions indicating at least one of the codewords to be retransmitted, constructing a demodulation reference signal (DM-RS) to be sent with the at least one codeword to be retransmitted, and retransmitting the at least one codeword with the DM-RS according to a retransmission rank. The downlink transmissions may include one or more physical hybrid automatic retransmission request indicator channels and the DM-RS may be constructed based at least in part on information in the downlink transmissions.
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公开(公告)号：US09686761B2
公开(公告)日：2017-06-20
申请号：US14181970
申请日：2014-02-17
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Xiliang Luo , Ke Liu
CPC classification number: H04W56/001 , H04J11/005 , H04J11/0069 , H04J11/0093 , H04W24/02 , H04W72/042
Abstract: Methods and apparatus for selecting samples for secondary synchronization signal (SSS) detection are described. Several alternatives are provided for efficient cell identifier detection. In a first alternative, multiple bursts of a signal received from a cell are sampled with non-uniform spacing between sampling intervals to determine a sequence for cell identification. In a second alternative, samples of a first and a second signal received from a stronger cell are cancelled, and a sequence for detecting a weaker cell is determined by reducing effects of the samples of a third signal received from the weaker cell which do not overlap with the primary synchronization signal (PSS) or SSS of the stronger cell. In a third alternative, a sequence for detecting a weaker cell is determined by reducing effects of any sampled bursts that correspond to a high transmission power portion of a signal from a stronger cell.
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公开(公告)号：US09622188B2
公开(公告)日：2017-04-11
申请号：US14302020
申请日：2014-06-11
Applicant: QUALCOMM Incorporated
Inventor： Xiliang Luo , Durga Prasad Malladi , Xiaoxia Zhang
CPC classification number: H04W52/24 , H04W16/02 , H04W24/02 , H04W52/146 , H04W52/225 , H04W52/241 , H04W52/247 , H04W52/343
Abstract: System(s) and method(s) are provided for inter-cell power control in the presence of fractional frequency reuse in a wireless communication system. Transmission power control of a terminal, and ensuing inter-cell interference mitigation, is accomplished by receiving load indicators from non-serving sectors, decoding those load indicators corresponding to the non-serving sectors that operate in the same frequency bands as the terminal, and adjusting the transmission power according the states of the decoded load indicators in conjunction with the associated non-serving sectors' forward link signal-to-interference-and-noise ratio at the terminal. The states of the load indicators reflect magnitudes of interference metrics with respect to threshold values. Load indicators can also be conveyed by the non-serving sector to a base station serving the terminal through a backhaul communication, and said base station can schedule an adjusted transmission power for the terminal.
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9.发明申请公开(公告)号：US20160065341A1
公开(公告)日：2016-03-03
申请号：US14797644
申请日：2015-07-13
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Xiliang Luo , Peter Gaal , Tao Luo , Durga Prasad Malladi , Yongbin Wei , Wanshi Chen , Hao Xu , Aleksandar Damnjanovic , Arumugam Chendamarai Kannan
Abstract: Techniques are provided for combining different types of reference signals. A wireless communications network may be configured to allow a user equipment (UE) to combine multiple demodulation reference signals (DM-RSs) to support demodulation of a physical downlink shared channel (PDSCH), and/or other downlink transmissions, transmitted from a base station to the UE. The base station may provide explicit signaling that reference signals transmitted in two or more transmission time intervals may be combined, or a determination that reference signals transmitted in two or more transmission time intervals may be combined may be made implicitly based on system configuration and previous transmissions. Based on the explicit signaling and/or implicit determination, a UE may combine reference signals included in each of two or more reference signals for use in demodulation of downlink transmissions.
Abstract translation: 提供了用于组合不同类型的参考信号的技术。 无线通信网络可以被配置为允许用户设备（UE）组合多个解调参考信号（DM-RS）以支持从基站发送的物理下行链路共享信道（PDSCH）和/或其他下行链路传输的解调 站到UE。 基站可以提供可以组合在两个或更多个传输时间间隔中发送的参考信号的显式信令，或者可以基于系统配置和先前传输来隐含地确定可以组合在两个或更多个传输时间间隔中发送的参考信号 。 基于明确的信令和/或隐含确定，UE可以组合包括在两个或更多个参考信号中的每一个中的参考信号，以用于下行链路传输的解调。
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公开(公告)号：US09078201B2
公开(公告)日：2015-07-07
申请号：US13650082
申请日：2012-10-11
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Alexei Yurievitch Gorokhov , Tingfang Ji , Ke Liu , Tao Luo , Xiliang Luo
IPC: H04B1/00 , H04W4/00 , H04W36/00 , H04W68/00 , H04B7/00 , H04W48/20 , H04B1/7107 , H04W28/04 , H04W84/04 , H04W36/04 , H04W16/14
CPC classification number: H04W36/04 , H04B1/7107 , H04J11/0056 , H04W16/14 , H04W28/04 , H04W36/0083 , H04W36/08 , H04W48/20 , H04W68/02 , H04W84/045 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/22 , Y02D70/24 , Y02D70/40
Abstract: An idle mode UE can RACH to a cell different from the cell paging the UE. The UE can be allocated additional time to respond to all cells in the neighborhood to identify the cell in which to RACH. Interference cancellation can occur at different rates based on whether the UE is in connected mode or idle mode. The time to respond to the page can be a function of a paging cycle. Additionally, a variable bias may promote early handoff to lower power cells and late handoff to high power cells.
Abstract translation: 空闲模式UE可以向与寻呼UE的小区不同的小区进行RACH。 UE可以被分配额外的时间来响应邻域中的所有小区，以识别在哪个RACH中的小区。 基于UE是处于连接模式还是空闲模式，干扰消除可以以不同的速率发生。 响应页面的时间可以是寻呼周期的功能。 另外，可变偏置可以促进早期切换到较低功率单元和对高功率单元的延迟切换。
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