公开(公告)号：US20150236833A1

公开(公告)日：2015-08-20

申请号：US14181284

申请日：2014-02-14

Applicant: QUALCOMM Incorporated

Inventor： Pranav Dayal ,  Tingfang Ji

IPC: H04L5/00 ,  H04W40/22

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04W40/22

Abstract: Techniques to support multihop relay in a wireless communication system are described. In an aspect, a relay station receives data and a first pilot from an upstream station, e.g., a base station or another relay station. The relay station derives a channel estimate based on the first pilot and performs detection for the data based on the channel estimate. The relay station resends the data and sends a second pilot to a downstream station, e.g., a subscriber station or another relay station. Each pilot may be sent in accordance with a pilot format selected for that pilot. The first and second pilots may be sent using the same or different pilot formats. The relay station may receive channel information from the second station and may forward the channel information to the first station and/or select a rate for data transmission to the second station based on the channel information.

Abstract translation: 描述了在无线通信系统中支持多跳中继的技术。 在一方面，中继站从上游站（例如，基站或另一中继站）接收数据和第一导频。 中继站基于第一导频导出信道估计，并且基于信道估计执行针对数据的检测。 中继站重新发送数据，并向下游站（例如，用户站或另一个中继站）发送第二个导频。 可以根据为该飞行员选择的飞行员格式发送每个飞行员。 可以使用相同或不同的导频格式来发送第一和第二导频。 中继站可以从第二站接收信道信息，并且可以基于信道信息将信道信息转发到第一站和/或选择用于数据传输到第二站的速率。

公开(公告)号：US08923208B2

公开(公告)日：2014-12-30

申请号：US13753352

申请日：2013-01-29

Applicant: QUALCOMM Incorporated

Inventor： Pranav Dayal ,  Tamer Adel Kadous ,  Ashok Mantravadi

IPC: H04Q7/00 ,  H04Q7/24 ,  H04W76/04 ,  H04W72/12 ,  H04L1/18

CPC classification number: H04W76/28 ,  H04L1/1812 ,  H04L1/188 ,  H04L1/1887 ,  H04W72/1215

Abstract: A user equipment (UE) may manage coexistence between multiple radio access technologies (RATs) utilized by the UE to allow a first RAT to be active during times when communications of a second RAT of the UE are inactive. In some instances, the UE may indicate discontinuous reception (DRX) operation of the UE to allow for time-division multiplexed (TDM) operation between the first RAT and the second RAT. The UE may set a hybrid automatic repeat request (HARQ) configuration to allow for a HARQ retransmission of a packet of the first RAT, originally received in a first DRX cycle, during a second DRX cycle.

Abstract translation: 用户设备（UE）可以管理由UE使用的多个无线接入技术（RAT）之间的共存，以允许第一RAT在UE的第二RAT的通信不活动的时间期间是活动的。 在一些情况下，UE可以指示UE的不连续接收（DRX）操作，以允许在第一RAT和第二RAT之间进行时分复用（TDM）操作。 UE可以在第二DRX周期期间设置混合自动重传请求（HARQ）配置以允许原始在第一DRX周期中接收到的第一RAT的分组的HARQ重传。

公开(公告)号：US20150092573A1

公开(公告)日：2015-04-02

申请号：US14040192

申请日：2013-09-27

Applicant: Qualcomm Incorporated

Inventor： Xiaoxia Zhang ,  Ashok Mantravadi ,  Pranav Dayal ,  Gavin Bernard Horn

IPC: H04W72/10 ,  H04W24/10

CPC classification number: H04W72/10 ,  H04B7/024 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/0691 ,  H04W24/10 ,  H04W72/1231 ,  H04W88/06

Abstract: Optimizing multiflow performance and priority across UEs and networks including receive antenna selection at the UEs, CSI measurement and reporting, and scheduling for multiflow operation. The techniques may evaluate channel conditions for a UE for multiple access points and different combinations of antennas and determine how the UE should feedback CSI for transmissions from the multiple access points. The disclosed techniques also include techniques for scheduling transmissions from the multiple access points using the CSI information to optimize multiflow performance and priority across UEs and networks. Various scheduling modes use feedback from UEs including the maximum supported rates for each link and/or rates based on the maximum sum capacity of the links used concurrently. The scheduler may maintain separate priority lists for each access point or a single priority list across both access points. The techniques may be used for multiflow operation using LTE and WLAN links.

Abstract translation: 在UE和网络之间优化多重性能和优先级，包括UE处的接收天线选择，CSI测量和报告以及多业务操作的调度。 这些技术可以评估UE针对多个接入点和天线的不同组合的信道条件，并且确定UE应该如何反馈来自多个接入点的传输的CSI。 所公开的技术还包括使用CSI信息来调度来自多个接入点的传输的技术，以优化跨UE和网络的多业务性能和优先级。 各种调度模式使用来自UE的反馈，包括每个链路的最大支持速率和/或基于同时使用的链路的最大总和容量的速率。 调度器可以在两个接入点上为每个接入点或单个优先级列表维护单独的优先级列表。 这些技术可以用于使用LTE和WLAN链路的多路操作。

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：US20130279355A1

公开(公告)日：2013-10-24

申请号：US13865944

申请日：2013-04-18

Applicant: QUALCOMM INCORPORATED

Inventor： Ahmed Kamel Sadek ,  Tamer Adel Kadous ,  Pranav Dayal ,  Ashok Mantravadi

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L1/0026 ,  H04L1/1812 ,  H04W72/082 ,  H04W72/1226 ,  H04W88/08

Abstract: A method for wireless communications includes determining a time division duplex (TDD) configuration of a non-serving network. The method also includes detecting interference from the non-serving network based at least in part on the TDD configuration of the non-serving network. The method further includes signaling an eNodeB of the interference based at least in part on the detecting.

Abstract translation: 一种用于无线通信的方法包括确定非服务网络的时分双工（TDD）配置。 该方法还包括至少部分地基于非服务网络的TDD配置来检测来自非服务网络的干扰。 该方法还包括至少部分地基于检测来向eNodeB发信号通知干扰。

公开(公告)号：US09832785B2

公开(公告)日：2017-11-28

申请号：US15181316

申请日：2016-06-13

Applicant: QUALCOMM INCORPORATED

Inventor： Tamer Adel Kadous ,  Pranav Dayal ,  Ashok Mantravadi ,  Peter Gaal ,  Jibing Wang

IPC: H04B1/00 ,  H04W72/12 ,  H04W52/24 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W52/243 ,  H04W72/1231 ,  H04W88/06

Abstract: A method of wireless communication includes adjusting a channel quality indicator (CQI) to compensate for coexistence interference experienced between communication resources (such as an LTE radio and a Bluetooth radio). The CQI may be set to zero, falsely indicating to a serving enhanced NodeB that a UE is out of range, thereby creating a gap in LTE operation that may be used by an alternate radio access technology. To compensate for fluctuating interference, the CQI may be adjusted to incorporate average coexistence interference over a period of time. Alternatively, the CQI at a time may incorporate coexistence interference regardless of whether interference is experienced at that specific time. A CQI value may also be boosted to compensate for a CQI backoff. CQI may be adjusted to avoid a spiral of death effect.

公开(公告)号：US09198053B2

公开(公告)日：2015-11-24

申请号：US13852574

申请日：2013-03-28

Applicant: QUALCOMM Incorporated

Inventor： Stephen William Edge ,  Peter John Black ,  Qiang Wu ,  Wanlun Zhao ,  Yeliz Tokgoz ,  Roberto Padovani ,  Ayman Fawzy Naguib ,  Je Woo Kim ,  Pranav Dayal ,  Parag Arun Agashe

IPC: H04W24/00 ,  G01S5/02 ,  H04W64/00

CPC classification number: H04W24/00 ,  G01S5/0226 ,  G01S5/0236 ,  H04W64/00

Abstract: Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.

Abstract translation: 简而言之，根据一个实施例，提供一种发送信号的方法。 信号波形从至少两个相应的扇区发送。 所述至少两个相应扇区是来自扇区的超集的至少两组不同的集合。 发送的信号波形包括至少沿着特定信号维度至少几乎相互正交的信号波形。 例如，这样的实施例的优点是减少了信号干扰。

公开(公告)号：US20130242780A1

公开(公告)日：2013-09-19

申请号：US13794645

申请日：2013-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： Pranav Dayal ,  Ashok Mantravadi

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04W16/14 ,  H04W72/1215 ,  H04W88/06

Abstract: A user equipment (UE) may mitigate coexistence issues in multi-radio devices, where significant in-device coexistence problems can. The UE determines at least one potential virtual gap pattern configuration for a first radio access technology (RAT). The UE also selects one of the at least one potential gap pattern configuration based at least in part on protecting subframes which are used by the first RAT to perform clean signal reference measurements and/or based at least in part on performance of the second RAT. Further, the UE quiets transmit activities of a second RAT during protected subframes of the first RAT in the determined potential virtual gap pattern configuration.

Abstract translation: 用户设备（UE）可以减轻在多个无线电设备中的共存问题，其中显着的设备内共存问题可以。 UE确定用于第一无线电接入技术（RAT）的至少一个潜在虚拟间隙模式配置。 UE还至少部分地基于保护由第一RAT使用的子帧执行干净信号参考测量和/或至少部分地基于第二RAT的性能来选择至少一个潜在间隙模式配置中的一个。 此外，UE在所确定的潜在虚拟间隙模式配置中，在第一RAT的受保护子帧期间，对第二RAT的活动进行发送。

公开(公告)号：US20130194994A1

公开(公告)日：2013-08-01

申请号：US13753352

申请日：2013-01-29

Applicant: QUALCOMM Incorporated

Inventor： Pranav Dayal ,  Tamer Adel Kadous ,  Ashok Mantravadi

IPC: H04W76/04

CPC classification number: H04W76/28 ,  H04L1/1812 ,  H04L1/188 ,  H04L1/1887 ,  H04W72/1215

Abstract: A user equipment (UE) may manage coexistence between multiple radio access technologies (RATs) utilized by the UE to allow a first RAT to be active during times when communications of a second RAT of the UE are inactive. In some instances, the UE may indicate discontinuous reception (DRX) operation of the UE to allow for time-division multiplexed (TDM) operation between the first RAT and the second RAT. The UE may set a hybrid automatic repeat request (HARQ) configuration to allow for a HARQ retransmission of a packet of the first RAT, originally received in a first DRX cycle, during a second DRX cycle.

Abstract translation: 用户设备（UE）可以管理由UE使用的多个无线接入技术（RAT）之间的共存，以允许第一RAT在UE的第二RAT的通信不活动的时间期间是活动的。 在一些情况下，UE可以指示UE的不连续接收（DRX）操作，以允许在第一RAT和第二RAT之间进行时分复用（TDM）操作。 UE可以在第二DRX周期期间设置混合自动重传请求（HARQ）配置以允许原始在第一DRX周期中接收到的第一RAT的分组的HARQ重传。

公开(公告)号：US10420118B2

公开(公告)日：2019-09-17

申请号：US14040192

申请日：2013-09-27

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Ashok Mantravadi ,  Pranav Dayal ,  Gavin Bernard Horn

IPC: H04W72/10 ,  H04W24/10 ,  H04B7/024 ,  H04B7/0404 ,  H04B7/06 ,  H04W72/12 ,  H04W88/06

Abstract: Optimizing multiflow performance and priority across UEs and networks including receive antenna selection at the UEs, CSI measurement and reporting, and scheduling for multiflow operation. The techniques may evaluate channel conditions for a UE for multiple access points and different combinations of antennas and determine how the UE should feedback CSI for transmissions from the multiple access points. The disclosed techniques also include techniques for scheduling transmissions from the multiple access points using the CSI information to optimize multiflow performance and priority across UEs and networks. Various scheduling modes use feedback from UEs including the maximum supported rates for each link and/or rates based on the maximum sum capacity of the links used concurrently. The scheduler may maintain separate priority lists for each access point or a single priority list across both access points. The techniques may be used for multiflow operation using LTE and WLAN links.