公开(公告)号：US20160095134A1

公开(公告)日：2016-03-31

申请号：US14869779

申请日：2015-09-29

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu ,  Srinivas Yerramalli

IPC: H04W72/12 ,  H04L1/18

CPC classification number: H04L1/1861 ,  H04W16/14 ,  H04W72/14 ,  H04W74/0808

Abstract: Systems and methods for uplink transmission scheduling are disclosed. A wireless device may monitor at least two downlink sub-frames for scheduling grants. The wireless device may receive a first uplink scheduling grant in one of the at least two downlink sub-frames for at least a first uplink sub-frame and receive a second uplink scheduling grant in another of the at least two downlink sub-frames for at least the first uplink sub-frame. The wireless device may perform an uplink transmission in the first uplink sub-frame based on one or both of the first uplink scheduling grant and the second uplink scheduling grant. For the uplink transmission, the wireless device may select a most recent uplink scheduling grant or select an uplink scheduling grant received in a downlink sub-frame at least a minimum number of sub-frames before the first uplink sub-frame.

Abstract translation: 公开了用于上行链路传输调度的系统和方法。 无线设备可以监视至少两个下行链路子帧以用于调度许可。 无线设备可以在至少第一上行链路子帧的至少两个下行链路子帧之一中接收第一上行链路调度许可，并且在所述至少两个下行链路子帧中的另一个中接收第二上行链路调度许可，以便在 至少第一上行链路子帧。 无线设备可以基于第一上行链路调度许可和第二上行链路调度许可中的一个或两个来执行第一上行链路子帧中的上行链路传输。 对于上行链路传输，无线设备可以选择最近的上行链路调度许可或者选择在第一上行链路子帧之前的至少最小数目的子帧的下行链路子帧中接收的上行链路调度许可。

公开(公告)号：US20160036581A1

公开(公告)日：2016-02-04

申请号：US14807069

申请日：2015-07-23

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Hao Xu ,  Shimman Arvind Patel

IPC: H04L5/14 ,  H04L27/20 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04L5/14 ,  H04L27/20 ,  H04L27/2607 ,  H04W74/006 ,  H04W74/04

Abstract: The present disclosure, for example, relates to one or more techniques for indicating a frame format for transmissions using unlicensed radio frequency spectrum bands. A UE may receive, from a base station, a frame format indicator associated with a transmission opportunity for transmissions in an unlicensed radio frequency spectrum band. The UE may determine a time-division duplexing (TDD) configuration for the transmission opportunity based at least in part on the frame format indicator.

Abstract translation: 本公开例如涉及一种或多种用于指示使用未许可射频频带的传输的帧格式的技术。 UE可以从基站接收与未许可的射频频带中的传输的传输机会相关联的帧格式指示符。 UE可以至少部分地基于帧格式指示符来确定用于传输机会的时分双工（TDD）配置。

公开(公告)号：US20150351121A1

公开(公告)日：2015-12-03

申请号：US14728859

申请日：2015-06-02

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu ,  Madhavan Srinivasan Vajapeyam ,  Srinivas Yerramalli

IPC: H04W72/12 ,  H04L5/00

Abstract: Protection of transmission and reception of clear channel assessment (CCA)-exempt transmission (CET) is disclosed in which channel reserving signals or protection signals may be transmitted by the transmitter or receiver of the CET. The transmitted signals may be received by the neighboring access points that could potentially cause interference with the reception of the CET.

Abstract translation: 公开了保护信道保留信号或保护信号可以由CET的发射机或接收机传输的保护传输和接收清除信道评估（CCA）的豁免传输（CET）。 所发送的信号可以被相邻接入点接收，这可能会对CET的接收造成干扰。

公开(公告)号：US20150271847A1

公开(公告)日：2015-09-24

申请号：US14584149

申请日：2014-12-29

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Shimman Arvind Patel ,  Wanshi Chen ,  Naga Bhushan ,  Yongbin Wei ,  Hao Xu ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Durga Prasad Malladi ,  Srinivas Yerramalli ,  Peter Gaal

IPC: H04W74/00

Abstract: Techniques are described for wireless communication. A first method includes transmitting a first signal to indicate accessing a first channel in a radio frequency spectrum band, and transmitting information with the first signal in the radio frequency spectrum band. A second method includes winning contention to access a radio frequency spectrum band, and after the winning contention to access the radio frequency spectrum band, transmitting a first signal to align a starting point of a second signal with a reference boundary associated with the radio frequency spectrum band. A third method includes winning contention to access a radio frequency spectrum band during a first frame period, the first frame selected from a plurality of different frame periods, and transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods.

Abstract translation: 技术描述为无线通信。 第一种方法包括发送第一信号以指示接入射频频带中的第一信道，以及在无线电频谱带中用第一信号发送信息。 第二种方法包括获胜争用以接入射频频带，并且在获胜争用以访问射频频带之后，发送第一信号以将第二信号的起始点与与无线电频谱相关联的参考边界对准 带。 第三种方法包括获胜争用以在第一帧周期期间访问射频频带，第一帧从多个不同的帧周期中选出，并且在每个第一帧周期的一个或多个子帧期间以周期性的方式发射信号 的多个不同的帧周期。

公开(公告)号：US20150181453A1

公开(公告)日：2015-06-25

申请号：US14551927

申请日：2014-11-24

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Durga Prasad Malladi ,  Tao Luo ,  Peter Gaal ,  Yongbin Wei ,  Hao Xu ,  Tingfang Ji ,  Srinivas Yerramalli ,  Naga Bhushan ,  Aleksandar Damnjanovic

IPC: H04W24/10 ,  H04L5/00 ,  H04W16/14 ,  H04L1/00

CPC classification number: H04W24/10 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04W16/14

Abstract: Channel and interference measurement in long term evolution (LTE)/LTE-Advanced (LTE-A) networks including unlicensed spectrum is discussed in which a user equipment (UE) detects a reference signal from a serving base station over a carrier of a shared spectrum for measurement. The reference signal may be a channel usage beacon signal (CUBS) transmitted by the serving base station prior to transmission or may be a specific channel state information (CSI) reference signal transmitted in the first subframe of a transmission frame. The UE generates a fast CSI feedback report based on the measured reference signal and transmits it to the serving base station. The fast CSI feedback report is received quickly enough by the serving base station such that the base station may apply the CSI feedback to additional transmissions in subsequent subframes within the same transmission frame.

Abstract translation: 讨论了包括非许可频谱在内的长期演进（LTE）/ LTE-Advanced（LTE-A）网络中的信道和干扰测量，其中用户设备（UE）通过共享频谱的载波检测来自服务基站的参考信号 用于测量。 参考信号可以是在发送之前由服务基站发送的信道使用信标信号（CUBS），或者可以是在传输帧的第一子帧中发送的特定信道状态信息（CSI）参考信号。 UE基于测量的参考信号生成快速CSI反馈报告，并将其发送到服务基站。 快速CSI反馈报告被服务基站足够快地接收，使得基站可以将CSI反馈应用于在相同传输帧内的后续子帧中的附加传输。

公开(公告)号：US20150172950A1

公开(公告)日：2015-06-18

申请号：US14565085

申请日：2014-12-09

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Durga Prasad Malladi ,  Srinivas Yerramalli ,  Yongbin Wei ,  Hao Xu ,  Tingfang Ji ,  Naga Bhushan ,  Aleksandar Damnjanovic

IPC: H04W24/10 ,  H04W16/14 ,  H04W74/08

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/0808 ,  H04W84/12

Abstract: Channel state information (CSI) feedback in long term evolution (LTE) and LTE-Advanced (LTE-A) networks including contention-based shared unlicensed spectrum is disclosed in which a user equipment (UE) identifies at least one carrier utilizing a contention based radio frequency spectrum. The UE detects a transmission signal indicative of clear channel assessment (CCA) result information for the carrier and determines whether a reference signal for channel state information measurement is present in a subframe based on the detected transmission signal. The UE would transmit a measurement report based on this presence determination of the reference signal.

Abstract translation: 公开了包括基于竞争的共享非许可频谱的长期演进（LTE）和LTE-Advanced（LTE-A）网络中的信道状态信息（CSI）反馈，其中用户设备（UE）利用基于竞争的标识识别至少一个载波 射频频谱 UE检测到表示用于载波的清除信道评估（CCA）结果信息的传输信号，并且基于检测到的传输信号来确定用于信道状态信息测量的参考信号是否存在于子帧中。 UE将基于参考信号的该存在确定来发送测量报告。

公开(公告)号：US20150146680A1

公开(公告)日：2015-05-28

申请号：US14501929

申请日：2014-09-30

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Wanshi Chen ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tingfang Ji ,  Peter Gaal

IPC: H04L5/00 ,  H04W72/06 ,  H04W72/04

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0608 ,  H04B7/0626 ,  H04J11/0053 ,  H04L5/0053 ,  H04W72/0426 ,  H04W72/0446 ,  H04W72/06 ,  H04W74/0808

Abstract: Techniques are described for downlink coordinated multi-point (CoMP) procedures for access to a contention-based radio frequency spectrum band. A base station performs a contention procedure, such as a clear channel assessment (CCA) procedure, for access to the radio frequency spectrum band. The base station determines whether contention has been won for a time period, and communicates whether or not contention has been won to other base stations in a CoMP cooperating set. Based on the information exchanged between base stations in the CoMP cooperating set, coordinated communications is initiated to a UE with two or more of the base stations in the CoMP cooperating set.

Abstract translation: 描述了用于接入基于争用的射频频带的下行链路协调多点（CoMP）过程的技术。 基站执行竞争程序，例如清除信道评估（CCA）过程，用于接入射频频带。 基站确定是否已经赢了一段时间的争用，并且在CoMP协作集合中通信竞争是否已经被赢得到其他基站。 基于CoMP协作集中的基站之间交换的信息，在具有CoMP协作集中的两个或多个基站的UE发起协调通信。

公开(公告)号：US20150110065A1

公开(公告)日：2015-04-23

申请号：US14518715

申请日：2014-10-20

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Naga Bhushan ,  Srinivas Yerramalli ,  Wanshi Chen ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Tao Luo ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W74/04 ,  H04W72/04

CPC classification number: H04W74/04 ,  H04W16/14 ,  H04W72/0446 ,  H04W74/0808

Abstract: Management of shared transmission resources is disclosed for multiple radio access networks (RANs) sharing access to a finite number of transmission slots. Multiple permutations of slot assignments are configured in which each competing network is assigned a specific slot in each permutation. The sequence of permutations provides a fair distribution of spectrum access by the competing networks, such that in each permutation of the permutation sequence, networks assigned to lower priority slots may be assigned to higher priority slots in later permutations.

Abstract translation: 公开了共享传输资源的管理，用于共享对有限数量的传输时隙的访问的多个无线电接入网络（RAN）。 配置时隙分配的多个排列，其中每个竞争网络在每个排列中被分配特定时隙。 置换序列提供了竞争网络的频谱接入的公平分布，使得在置换序列的每个置换中，分配给较低优先级时隙的网络可以在后面的排列中分配给较高优先级时隙。

公开(公告)号：US20150085797A1

公开(公告)日：2015-03-26

申请号：US14493067

申请日：2014-09-22

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Tao Luo ,  Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Wanshi Chen ,  Srinivas Yerramalli

IPC: H04W74/08 ,  H04J13/10 ,  H04W16/14 ,  H04W72/04 ,  H04J3/16 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0866 ,  H04J3/16 ,  H04J13/10 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04W16/14 ,  H04W72/0453 ,  H04W74/002

Abstract: Uplink waveforms for operating long term evolution (LTE) in an unlicensed band (i.e., long term evolution-unlicensed (LTE-U) communication) are disclosed. Carrier aggregation (CA) and standalone (SA) are disclosed. LTE on the licensed channel may provide both control and data, LTE on the unlicensed channel may provide data. Managing variable transmission time interval (TTI) continuous transmission is disclosed for transmission over multiple subframes of an unlicensed carrier in LTE-U. Listen-before-talk (LBT) requirements of unlicensed carriers provide for additional channel occupancy constraints when scheduling resources for multiple UEs for variable TTI continuous uplink transmissions over multiple subframes. A joint control channel is disclosed that provides control information for all of the potentially available subframes to be scheduled for the uplink transmissions. In addition to management of the variable TTI continuous transmissions, adjustments to uplink signal parameters are also disclosed that address the constraints due to the LBT requirements of unlicensed carriers.

Abstract translation: 公开了用于在未许可频带（即，长期进化 - 未许可（LTE-U）通信）中进行长期演进（LTE）的上行链路波形。 公开了载波聚合（CA）和独立（SA）。 许可频道上的LTE可以提供控制和数据两者，在非许可频道上的LTE可以提供数据。 公开了管理可变传输时间间隔（TTI）连续传输用于在LTE-U中的未许可载波的多个子帧上的传输。 在对多个UE进行可变TTI连续上行链路传输的多个子帧调度资源时，未经许可的载波的听话（LBT）要求提供额外的信道占用约束。 公开了一种联合控制信道，其提供用于针对上行链路传输调度的所有可能可用的子帧的控制信息。 除了可变TTI连续传输的管理之外，还公开了对上行链路信号参数的调整，其解决了由于未授权载波的LBT要求引起的约束。

公开(公告)号：US20150056931A1

公开(公告)日：2015-02-26

申请号：US14465560

申请日：2014-08-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Naga Bhushan ,  Peter Gaal

IPC: H04W24/08 ,  H04W72/12 ,  H04W16/14

CPC classification number: H04W24/00 ,  H04B17/00 ,  H04B17/318 ,  H04B17/345 ,  H04W16/14 ,  H04W88/06

Abstract: Methods, systems, and devices are described for detection of one or more interfering signals in a particular frequency spectrum. Signal characteristics may be identified for a signal of interest in the spectrum, such as a signal that is desired to be received at a wireless communications device. Based at least in part on the characteristics, one or more interference detection opportunities may be identified, during which interfering signals in the spectrum may be detected. Interference detection opportunities may include, for example, periods when the signal of interest may be absent from the particular frequency spectrum. Transmissions in the frequency spectrum may be monitored during the interference detection opportunity to determine the presence of one or more interfering signals.

Abstract translation: 描述了用于检测特定频谱中的一个或多个干扰信号的方法，系统和装置。 可以针对频谱中感兴趣的信号识别信号特性，例如希望在无线通信设备处接收的信号。 至少部分地基于特性，可以识别一个或多个干扰检测机会，在此期间可以检测到频谱中的干扰信号。 干扰检测机会可以包括例如感兴趣的信号可能不存在于特定频谱中的周期。 可以在干扰检测机会期间监视频谱中的传输，以确定一个或多个干扰信号的存在。