公开(公告)号：US20160013897A1

公开(公告)日：2016-01-14

申请号：US14743395

申请日：2015-06-18

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Hao Xu ,  Yongbin Wei

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04L12/18 ,  H04W72/04

CPC classification number: H04L5/005 ,  H04L1/0058 ,  H04L5/0051 ,  H04L12/18 ,  H04L27/2607 ,  H04L27/3488 ,  H04W72/005 ,  H04W72/042

Abstract: Methods, systems, and devices are described for increased wireless communications system capacity through hierarchical modulation of multiple transmission layers during certain transmission subframes in a wireless communications system. Various deployment scenarios may be supported that may provide communications modulated on both a base modulation layer as well as on an enhancement modulation layer that is superpositioned on the base modulation layer. Reference signals may be provided for channel estimation for both the base modulation layer and enhancement modulation layer.

Abstract translation: 通过在无线通信系统中的某些传输子帧期间通过多层传输层的分级调制来描述方法，系统和设备以增加无线通信系统容量。 可以支持各种部署场景，其可以提供在基本调制层以及叠加在基本调制层上的增强调制层上调制的通信。 参考信号可以被提供用于基本调制层和增强调制层两者的信道估计。

公开(公告)号：US09220115B2

公开(公告)日：2015-12-22

申请号：US14332633

申请日：2014-07-16

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Tao Luo ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram ,  Hao Xu

IPC: H04L12/413 ,  H04W74/08

CPC classification number: H04W74/0816 ,  H04W74/08

Abstract: Techniques are described for channel access in a radio frequency spectrum band shared by a number of asynchronous operators. One or more clear channel assessment (CCA) procedures may be used to contend for one or more transmission periods in the radio frequency spectrum band. When the contention is won for one or more transmission periods, a determination may be made as to whether the a number of transmission periods for which contention has been won is equal to or greater than a threshold number of consecutive transmission periods. If the number of transmission periods for which contention has been won is at or above the threshold number, occupancy of the radio frequency spectrum band may be relinquished for a period of time, in order to allow another operator to access the radio frequency spectrum band.

Abstract translation: 描述了由许多异步运算符共享的射频频带中的信道接入技术。 可以使用一个或多个清除信道评估（CCA）过程来争夺无线电频谱带中的一个或多个传输周期。 当在一个或多个发送周期中获胜时，可以确定竞争已经赢得的发送周期的数量是否等于或大于连续发送周期的阈值数。 如果争用争用的发送期间的数量等于或高于阈值数，则可以在一段时间内放弃无线电频谱带的占用，以允许另一操作者访问无线电频谱带。

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：US20150319781A1

公开(公告)日：2015-11-05

申请号：US14685051

申请日：2015-04-13

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Kiran Kumar Somasundaram ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Hao Xu

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04J3/16

CPC classification number: H04W16/14 ,  H04J3/1694 ,  H04W72/044 ,  H04W74/08

Abstract: Techniques are described for wireless communication. One method includes identifying, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band, and aligning a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band.

Abstract translation: 技术描述为无线通信。 一种方法包括由第一发射机识别用于访问未许可射频频带的第一争用接入协议定时，以及将第二争用接入协议定时与第一争用接入协议定时对准，第二争用接入协议定时由第 用于访问未经许可的射频频带的第一发射机。

公开(公告)号：US09160484B2

公开(公告)日：2015-10-13

申请号：US14166037

申请日：2014-01-28

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Juan Montojo ,  Sandip Sarkar

IPC: H04L27/06 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04L1/0038 ,  H04W72/042

Abstract: Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.

Abstract translation: 描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。 对可能的CCE组合的几种形式进行了调查和调查。 基于PDCCH大小估计/信息，可以得出最有可能（有限集合）的CCE级联。 还设计了基于树的级联，使用最大的CCE排序来将较小的CCE大小对准到类似的边界。 通过这样的排序，所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。 也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。 还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。

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：US20150245327A1

公开(公告)日：2015-08-27

申请号：US14573075

申请日：2014-12-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W24/08 ,  H04W16/14

CPC classification number: H04W72/042 ,  H04W16/14 ,  H04W24/08 ,  H04W72/1215

Abstract: Techniques are described for wireless communication. One method includes monitoring, by a first base station of a first operator, for uplink configuration information and downlink configuration information associated with a second base station of at least one second operator; identifying a transmission timing of one or more uplink transmissions to the second base station of the at least one second operator based at least in part on the uplink configuration information; and prohibiting access to an unlicensed radio frequency spectrum band by the first base station of the first operator during the identified transmission timing of the one or more uplink transmissions. Transmissions of the second base station of the at least one second operator in the unlicensed radio frequency spectrum band may be asynchronous to transmissions of the first base station of the first operator in the unlicensed radio frequency spectrum band.

Abstract translation: 技术描述为无线通信。 一种方法包括由第一运营商的第一基站监视与至少一个第二运营商的第二基站相关联的上行链路配置信息和下行链路配置信息; 至少部分地基于所述上行链路配置信息来识别对所述至少一个第二运营商的所述第二基站的一个或多个上行链路传输的传输定时; 以及在所述一个或多个上行链路传输的所识别的传输定时期间禁止由所述第一运营商的所述第一基站访问未许可的射频频带。 非许可射频频带中的至少一个第二运营商的第二基站的传输可以与非许可射频频带中的第一运营商的第一基站的传输异步。

公开(公告)号：US09107056B2

公开(公告)日：2015-08-11

申请号：US13830702

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Siddhartha Mallik ,  Naga Bhushan ,  Yongbin Wei ,  Gavin Bernard Horn

IPC: H04M3/00 ,  H04W8/22 ,  H04W24/02 ,  H04W76/04 ,  H04W84/04

CPC classification number: H04W48/17 ,  H04W8/22 ,  H04W24/02 ,  H04W72/0453 ,  H04W74/006 ,  H04W76/28 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

Abstract: A method of wireless communication includes configuring a small cell with activation parameters. The activation parameters include a new carrier type having a reduced periodicity. The method also includes configuring a UE with time restricted measurements. The time restricted measurements correspond to the new carrier type and the reduced periodicity. The method further includes receiving small cell signal measurements from the UE and initiating an activation sequence in response to the small cell signal measurements.

Abstract translation: 一种无线通信方法包括：配置具有激活参数的小小区。 激活参数包括具有减小的周期性的新载体类型。 该方法还包括配置具有时间限制测量的UE。 时间限制测量对应于新的载波类型和减少的周期性。 所述方法还包括从所述UE接收小小区信号测量并响应于所述小小区信号测量启动激活序列。

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。