公开(公告)号：US20160119942A1

公开(公告)日：2016-04-28

申请号：US14523603

申请日：2014-10-24

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang

IPC: H04W72/12 ,  H04B7/04 ,  H04W88/08 ,  H04B7/06

CPC classification number: H04W88/08 ,  H04B7/0413 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0691 ,  H04W48/16 ,  H04W72/1215

Abstract: A method is described. The method includes determining channel quality report timing for a first radio access technology (RAT). The method also includes aligning scan timing for a second RAT with the channel quality report timing of the first RAT. The method further includes sending a first channel quality report to a base station that indicates lower-rank multiple-input and multiple-output (MIMO) is available for the first RAT when the second RAT performs a scan. The method additionally includes sending a second channel quality report to the base station that indicates higher-rank MIMO is available upon completion of the scan.

Abstract translation: 描述了一种方法。 该方法包括确定第一无线电接入技术（RAT）的信道质量报告定时。 该方法还包括将第二RAT的扫描定时与第一RAT的信道质量报告定时对准。 该方法还包括：当第二RAT执行扫描时，向基站发送指示低级多输入和多输出（MIMO）的第一信道质量报告可用于第一RAT。 该方法还包括向基站发送第二信道质量报告，其指示在完成扫描时更高等级的MIMO是可用的。

公开(公告)号：US09100110B2

公开(公告)日：2015-08-04

申请号：US14013569

申请日：2013-08-29

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang ,  Roberto Rimini

IPC: H04B1/10 ,  H04B15/00

CPC classification number: H04B15/00 ,  H04B1/10 ,  H04B1/109

Abstract: Disclosed is non-linear interference cancellation (NLIC) on a victim receiver in a communication system in which there is self-jamming interference from multiple aggressor transmitters. The victim receiver may implement cascaded NLIC operations using multiple interference signals in succession to remove the multiple interference signals from the Rx signal and to cancel or mitigate the self-jamming interference. The reconstruction and removal of the interference signals may be ordered based on the expected level of interference from the interference signals on the desired Rx signal. The victim receiver may first perform NLIC operation using the Tx signal from the transmitter aggressor estimated to generate the strongest interference signal to remove the strongest interference signal from the Rx signal first. The victim receiver may perform NLIC operation on the TX signal from the next strongest transmitter aggressor, and so on, to remove interference signals of multiple aggressor transmitters from the Rx signal.

Abstract translation: 公开了在来自多个攻击者发射机的自身干扰的通信系统中的受害者接收机上的非线性干扰消除（NLIC）。 受害者接收机可以使用多个干扰信号来连续地实现级联的NLIC操作，以从Rx信号中去除多个干扰信号并消除或减轻自干扰干扰。 干扰信号的重建和去除可以基于期望的Rx信号上来自干扰信号的预期的干扰水平来排序。 受害者接收机可以首先使用来自发射机攻击者的Tx信号来执行NLIC操作，以发射最强的干扰信号，以首先从Rx信号去除最强的干扰信号。 受害者接收机可以对来自下一个最强的发射机攻击者的TX信号执行NLIC操作，以此类推，以从Rx信号中去除多个攻击者发射机的干扰信号。

公开(公告)号：US20150139015A1

公开(公告)日：2015-05-21

申请号：US14599788

申请日：2015-01-19

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel KADOUS ,  Pranav Dayal ,  Ashok Mantravadi ,  Peter Gaal ,  Jibing Wang ,  Cheol Hee Park ,  Reza Shahidi ,  Alexei Yurievitch Gorokhov ,  Levent Aydin

IPC: H04W24/08 ,  H04L5/00 ,  H04W36/00 ,  H04W72/08

CPC classification number: H04W24/08 ,  H04L5/0062 ,  H04L5/0073 ,  H04W36/0085 ,  H04W72/1215 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24

Abstract: Various embodiments enable a multi-active mobile communication device to mitigate (manage) interference by a frequency band used by a first subscription with the frequency band used by a second subscription. The device processor may generate modified power measurements for one or more frequency bands of a first subscription and use the modified power measurement(s) to cause the first subscription to switch from the frequency band that interferes with the frequency band of the second subscription. The modified power measurement may be a decreased power measurement of the first frequency band and/or an increased power measurement of a second frequency band that does not interfere with the frequency band of the second subscription. As a result, various embodiments may mitigate or otherwise manage the impact of coexistence interference between the first and second subscriptions of a multi-active mobile communication device without limiting capabilities of the device or changes to the network.

Abstract translation: 各种实施例使得多活动移动通信设备能够利用由第二订阅使用的频带的第一订阅使用的频带来减轻（管理）干扰。 设备处理器可以为第一订阅的一个或多个频带生成修改的功率测量，并且使用修改的功率测量来使得第一订阅从干扰第二订阅的频带的频带切换。 修改的功率测量可以是第一频带的功率测量的降低和/或不干扰第二订阅的频带的第二频带的增加的功率测量。 结果，各种实施例可以减轻或以其他方式管理多活动移动通信设备的第一和第二订阅之间的共存干扰的影响，而不会限制设备的能力或对网络的改变。

公开(公告)号：US20150103758A1

公开(公告)日：2015-04-16

申请号：US14260005

申请日：2014-04-23

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang ,  Joel Benjamin Linsky

IPC: H04W72/04

CPC classification number: H04W72/0426 ,  H04W36/005 ,  H04W36/14 ,  H04W48/16 ,  H04W48/18 ,  H04W72/1215 ,  H04W88/06

Abstract: A method for identifying a radio access technology by an electronic device is described. The method includes generating, by a first communication circuitry, a first message that identifies a radio access technology. The first message is of a first message type. The method also includes sending, by the first communication circuitry, the first message to a second communication circuitry. The first communication circuitry and the second communication circuitry communicate with each other over a non-radio link. The method further includes sending, by the first communication circuitry, a second message associated with the first message. The second message is of a second message type that is different from the first message type.

Abstract translation: 描述了一种通过电子设备识别无线电接入技术的方法。 该方法包括由第一通信电路产生识别无线电接入技术的第一消息。 第一个消息是第一个消息类型。 该方法还包括由第一通信电路将第一消息发送到第二通信电路。 第一通信电路和第二通信电路通过非无线电链路彼此通信。 该方法还包括由第一通信电路发送与第一消息相关联的第二消息。 第二个消息是与第一个消息类型不同的第二个消息类型。

公开(公告)号：US08971823B2

公开(公告)日：2015-03-03

申请号：US14134528

申请日：2013-12-19

Applicant: QUALCOMM Incorporated

Inventor： Dhananjay Ashok Gore ,  Hemanth Sampath ,  Jibing Wang ,  Tamer Kadous ,  Gwendolyn D. Barriac

IPC: H04B1/00 ,  H04B7/04 ,  H04L1/00 ,  H04L1/06 ,  H04L5/02 ,  H04L27/26 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0675 ,  H04L5/023 ,  H04L25/0206 ,  H04L27/2602 ,  H04L27/2608

Abstract: Techniques to enhance the performance in a wireless communication system using segments called subbands and using precoding are shown. According to one aspect, the bandwidth for transmission to an access terminal is constrained to a preferred bandwidth which is less than the bandwidth available for transmission to an access terminal and precoding information related to the subcarriers within the constrained bandwidth is provided to a transmitter. The precoding information related to the subcarriers within a constrained bandwidth provides feedback about the forward link channel properties relative to different subbands and may be fed back on a channel associated with the bandwidth.

Abstract translation: 示出了使用称为子带并使用预编码的段来增强在无线通信系统中的性能的技术。 根据一个方面，用于传输到接入终端的带宽被限制到比可用于传输到接入终端的带宽的优选带宽，并且将与受限带宽内的子载波相关的预编码信息提供给发射机。 与受限带宽内的子载波相关的预编码信息提供关于相对于不同子带的前向链路信道属性的反馈，并且可以在与带宽相关联的信道上反馈。

公开(公告)号：US20130201883A1

公开(公告)日：2013-08-08

申请号：US13756472

申请日：2013-01-31

Applicant: Qualcomm Incorporated

Inventor： Jibing Wang

IPC: H04W72/08 ,  H04W36/20

CPC classification number: H04W72/082 ,  H04W16/10 ,  H04W16/14 ,  H04W36/20 ,  H04W72/1215 ,  H04W76/16 ,  H04W88/06

Abstract: In a multi-radio user equipment (UE) for wireless communication, potential interference between the individual radios may be managed through the use of configurable logical connections between the radios. The connections send signals among the radios to indicate when a particular radio is active. The connections may be configured to indicate different activity types among the radios based on the operating conditions of the radios.

Abstract translation: 在用于无线通信的多无线电用户设备（UE）中，可以通过使用无线电之间的可配置逻辑连接来管理各个无线电之间的潜在干扰。 连接在无线电中发送信号以指示特定无线电何时处于活动状态。 连接可以被配置为基于无线电的操作条件来指示无线电中的不同的活动类型。

公开(公告)号：US09801197B2

公开(公告)日：2017-10-24

申请号：US14706200

申请日：2015-05-07

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Tao Luo ,  Jibing Wang

IPC: H04W72/12 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W16/14 ,  H04W72/1226 ,  H04W72/1289 ,  H04W88/06

Abstract: Methods and apparatuses for reducing interference with co-located radio access technologies (RATs) are described herein. A method includes identifying, by an access point (AP), scheduling information for transmissions to a wireless device for a first RAT and setting a schedule of transmissions from the AP to the wireless device in a second RAT based at least in part on the scheduling information to avoid downlink transmission times for the first RAT. Another example method includes identifying, by a wireless device, scheduling information for transmissions to the wireless device for a first RAT. The method also includes determining a proximities of the wireless device to a first network device of the first RAT and to a second network device of a second RAT. The method further includes forwarding the scheduling information to the second network device of the second RAT based at least in part on the determining the proximities.

公开(公告)号：US09560594B2

公开(公告)日：2017-01-31

申请号：US14277623

申请日：2014-05-14

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Arunkumar Jayaraman ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Shu Du ,  Alireza Raissinia ,  Jibing Wang ,  Sandip Homchaudhuri

IPC: H04W52/02 ,  H04W72/02 ,  H04L1/08 ,  H04W84/12

CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

Abstract translation: 描述了无线通信系统中的功率节省的方法，系统和设备，通过AP和站之间的有效传输和信息确认。 在站点确定进入节电模式并进入网络睡眠模式之间的时间可以通过AP向MPI发送确认之后的MPDU向连续的SIFS的站传输而减少 站点的PS-Poll帧。 由站点进入省电模式的时间也可以通过A-MPDU的传输来减少，其中A-MPDU的最后一个MPDU被清除以指示不发送附加数据。 在没有来自站的确认的情况下，AP可以阻止对站的MPDU的重传，以进一步提高效率。

公开(公告)号：US09485777B2

公开(公告)日：2016-11-01

申请号：US13843444

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang

IPC: H04W4/00 ,  H04W72/12

CPC classification number: H04W72/1215

Abstract: This disclosure provides coexistence strategies for a combined wireless communications device using multiple wireless protocols, such as WLAN and LTE. One or more periods having increased interference potential during an upcoming communication event of one wireless protocol may be identified and the transmission duration of another wireless protocol may be dynamically adjusted to reduce interference. In one aspect, a first period of potential interference during an upcoming LTE transmission may be predicted based on allocated LTE transmission power. The duration of the transmission may be adjusted so that a response to the transmission does not arrive during the first period. In another aspect, a second period of potential interference during an upcoming LTE reception may be predicted based on an estimated quality of LTE reception. The duration of the transmission may be adjusted so that the transmission does not being during the second period.

Abstract translation: 本公开提供了使用诸如WLAN和LTE之类的多种无线协议的组合无线通信设备的共存策略。 可以识别在一个无线协议的即将到来的通信事件期间具有增加的干扰电位的一个或多个周期，并且可以动态地调整另一无线协议的传输持续时间以减少干扰。 在一个方面，可以基于分配的LTE发送功率预测即将到来的LTE传输期间的潜在干扰的第一周期。 可以调整传输的持续时间，使得在第一周期期间对传输的响应没有到达。 在另一方面，可以基于LTE接收的估计质量来预测即将到来的LTE接收期间的第二时段的潜在干扰。 可以调整传输的持续时间，使得传输不在第二时段期间。

公开(公告)号：US09438284B2

公开(公告)日：2016-09-06

申请号：US14070919

申请日：2013-11-04

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang ,  Roberto Rimini ,  Joseph Patrick Burke

IPC: H04B1/10 ,  H04B1/12 ,  H04L25/03

CPC classification number: H04B1/1027 ,  H04B1/126 ,  H04L25/03305

Abstract: Various embodiments are disclosed for implementing joint non-linear interference cancellation (NLIC) in communication receivers with multiple receiver antennas to cancel or mitigate self-jamming interference from the same aggressor transmitter. A victim receiver may exploit the correlated nature of the interference signals received by the multiple receiver antennas to reduce the computational complexity of an NLIC scheme and improve performance. The victim receiver may select an Rx antenna/Rx chain that experiences the strongest interference from the aggressor transmitter and may perform a full NLIC operation using Tx data from the aggressor transmitter to estimate the strongest interference signal. The NLIC operation may estimate each remaining interference signal by applying a complex coefficient from a single-tap adaptive filter to the estimate of the strongest interference signal. The victim receiver may remove the estimated interference signals from the Rx signals of the respective Rx chains to cancel or mitigate the interference.

Abstract translation: 公开了用于在具有多个接收机天线的通信接收机中实现联合非线性干扰消除（NLIC）的各种实施例，以消除或减轻来自同一侵略者发射机的自身干扰。 受害者接收机可以利用由多个接收机天线接收的干扰信号的相关性质来降低NLIC方案的计算复杂性并提高性能。 受害者接收机可以选择经历来自攻击者发射机的最强干扰的Rx天线/ Rx链，并且可以使用来自攻击者发射机的Tx数据来执行完整的NLIC操作，以估计最强的干扰信号。 NLIC操作可以通过将来自单抽头自适应滤波器的复系数应用于最强干扰信号的估计来估计每个剩余的干扰信号。 受害者接收机可以从相应Rx链的Rx信号中去除估计的干扰信号，以消除或减轻干扰。