公开(公告)号：US09509486B2

公开(公告)日：2016-11-29

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: H04J3/00 ,  H04L5/14 ,  H04L27/26 ,  H04L27/20 ,  H04W74/00

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：US20160345249A1

公开(公告)日：2016-11-24

申请号：US15143821

申请日：2016-05-02

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Hao Xu ,  Durga Prasad Malladi ,  Yongbin Wei ,  Siddhartha Mallik ,  Jing Sun ,  Madhavan Srinivasan Vajapeyam ,  Jun Wang ,  Tao Luo ,  Xiaoxia Zhang ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W48/16 ,  H04W16/14 ,  H04L5/00 ,  H04W74/08 ,  H04W4/06 ,  H04W76/02

CPC classification number: H04W48/16 ,  H04L5/001 ,  H04W4/06 ,  H04W16/14 ,  H04W74/0808 ,  H04W76/10

Abstract: Techniques are described for wireless communication. One method for wireless communication at a base station includes contending for access to a shared channel of a shared radio frequency spectrum band, and multiplexing first component carrier (CC) communication windows and second CC communication windows in the shared channel. A duration of orthogonal frequency domain multiplexed (OFDM) symbols of the first CC communication windows may be different from a duration of OFDM symbols of the second CC communication windows, and the multiplexing may occur on the shared channel upon winning contention for access to the shared channel. One method for wireless communication at a user equipment (UE) includes monitoring a shared channel of a shared radio frequency spectrum band for a first CC Listen Before Talk (LBT) frame, and receiving, in a second CC preamble, an indication of the first CC LBT frame.

Abstract translation: 技术描述为无线通信。 一种用于在基站进行无线通信的方法包括竞争对共享射频频带的共享信道的访问，以及在共享信道中复用第一分量载波（CC）通信窗口和第二CC通信窗口。 第一CC通信窗口的正交频域多路复用（OFDM）符号的持续时间可以不同于第二CC通信窗口的OFDM符号的持续时间，并且在获得争用访问共享信道时在共享信道上可能发生复用 渠道。 在用户设备（UE）的无线通信的一种方法包括：监视用于第一CC在线聆听（LBT）帧的共享射频频带的共享信道，并且在第二CC前导码中接收第一CC CC LBT框架。

公开(公告)号：US20160345206A1

公开(公告)日：2016-11-24

申请号：US15149752

申请日：2016-05-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Aleksandar Damnjanovic ,  Wanshi Chen ,  Peter Gaal

IPC: H04W28/12 ,  H04W72/04 ,  H04W72/14 ,  H04W8/08 ,  H04J11/00 ,  H04L5/00

CPC classification number: H04W28/12 ,  H04J11/00 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04W16/14 ,  H04W72/042 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/0808

Abstract: Control flow enhancement for LTE-U operation. Aspects include enhancements to control flow processing for floating TTI operation for unlicensed cells including ePDCCH processing, aperiodic CSI reporting, DRX operation, and extended TTIs at the end of a transmission burst. The described aspects also include enhancements for reference signal configuration for unlicensed cells, processing of joint grants for multiple unlicensed cells, ePDCCH processing for partial subframes, and multi-channel DRS operation.

Abstract translation: LTE-U操作的控制流增强。 方面包括对发送突发的结束时的非许可小区的浮动TTI操作的流量处理的增强，包括ePDCCH处理，非周期性CSI报告，DRX操作和扩展TTI。 所描述的方面还包括用于未许可小区的参考信号配置的增强，用于多个未许可小区的联合授权的处理，用于部分子帧的ePDCCH处理和多信道DRS操作。

公开(公告)号：US20160323915A1

公开(公告)日：2016-11-03

申请号：US15050404

申请日：2016-02-22

Applicant: QUALCOMM Incorporated

Inventor： Zhengwei Liu ,  Xiaoxia Zhang ,  Wanshi Chen ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Onkar Jayant Dabeer

IPC: H04W74/08 ,  H04W16/14

CPC classification number: H04W74/0825 ,  H04W16/14 ,  H04W74/0808 ,  H04W74/0833 ,  H04W84/042

Abstract: Additional improvements to the design of enhanced physical random access channel (ePRACH) procedures are disclosed for communications systems having contention-based shared spectrum including unlicensed frequency bands. The additional improvements address the uncertainty of transmission in listen before talk (LBT)-based communications and cooperation with other radio access technologies competing for the same frequency spectrum.

Abstract translation: 对具有基于竞争的共享频谱（包括非许可频带）的通信系统公开了对增强物理随机接入信道（ePRACH）过程的设计的附加改进。 额外的改进解决了在基于聆听（LBT）的通信和与竞争相同频谱的其他无线电接入技术的协作的传输的不确定性。

公开(公告)号：US20160309518A1

公开(公告)日：2016-10-20

申请号：US15090859

申请日：2016-04-05

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W74/08

CPC classification number: H04W74/0833 ,  H04W74/002 ,  H04W74/0891

Abstract: Wireless devices may exchange data related to multiple available random access procedures for network access. A random access procedure of the available random access procedures may be selected, and a random access message transmitted based on the selected random access procedure. Available random access procedures may include procedures that provide for a different number of random access messages or that are for use in communications having different transmission time intervals (TTIs). For example, a random access procedure may include a total of two random access messages or a total of four random access messages for accessing the wireless communications network. The use of one random access procedure instead of the other may depend on a wireless device's location relative to its serving base station.

Abstract translation: 无线设备可以交换与用于网络接入的多个可用随机接入过程相关的数据。 可以选择可用随机接入过程的随机接入过程，以及基于所选择的随机接入过程发送的随机接入消息。 可用的随机接入过程可以包括提供不同数量的随机接入消息或用于具有不同传输时间间隔（TTI）的通信中的过程）。 例如，随机接入过程可以包括总共两个随机接入消息或总共四个用于接入无线通信网络的随机接入消息。 使用一个随机接入过程而不是另一个随机接入过程可以取决于无线设备相对于其服务基站的位置。

公开(公告)号：US20160309467A1

公开(公告)日：2016-10-20

申请号：US15080393

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/14 ,  H04W76/04

CPC classification number: H04W72/0446 ,  H04L1/1812 ,  H04W72/0453 ,  H04W72/1278 ,  H04W72/14 ,  H04W76/27

Abstract: Techniques are described for wireless communication. A first method includes receiving a semi-static partial subframe configuration and a corresponding partial subframe identifier; receiving a grant for a partial subframe, the grant identifying the partial subframe identifier; and receiving data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration. A second method includes monitoring a plurality of symbol periods for at least one channel reservation signal transmitted over a shared radio frequency spectrum band, where the at least one channel reservation signal is encoded based at least in part on each symbol period of the plurality of symbol periods; and receiving a downlink transmission over the shared radio frequency spectrum band, where the downlink transmission follows the plurality of channel reservation signals.

Abstract translation: 技术描述为无线通信。 第一种方法包括：接收半静态部分子帧配置和对应的部分子帧标识符; 接收部分子帧的授权，所述授权标识所述部分子帧标识符; 以及至少部分地基于所述半静态部分子帧配置，在共享射频频带上接收针对所述部分子帧调度的数据。 第二种方法包括监视通过共享射频频带发送的至少一个信道预约信号的多个符号周期，其中至少一个信道预约信号至少部分地基于多个符号的每个符号周期被编码 期间 并且在所述共享射频频带上接收下行链路传输，其中所述下行链路传输遵循所述多个信道预留信号。

公开(公告)号：US20160302105A1

公开(公告)日：2016-10-13

申请号：US15081708

申请日：2016-03-25

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Fatih Ulupinar ,  Aleksandar Damnjanovic

IPC: H04W28/06

CPC classification number: H04W28/065

Abstract: Techniques are described for wireless communication. One method includes encapsulating and segmenting a packet data convergence protocol (PDCP) protocol data unit (PDU), at a medium access control (MAC) layer, to form at least a first MAC service data unit (SDU) and a second MAC SDU; mapping the first MAC SDU to a first MAC PDU and the second MAC SDU to a second MAC PDU; and transmitting the first MAC PDU in a first transport block and the second MAC PDU in a second transport block. In some method examples, the encapsulating may include segmenting the PDCP PDU. In some examples, the method may include transmitting framing information in the first transport block and the second transport block. In some examples, the framing information for a transport block may be transmitted in at least one MAC sub-header of the transport block.

Abstract translation: 技术描述为无线通信。 一种方法包括在媒体接入控制（MAC）层封装和分段分组数据会聚协议（PDCP）协议数据单元（PDU），以形成至少第一MAC服务数据单元（SDU）和第二MAC SDU; 将第一MAC SDU映射到第一MAC PDU，将第二MAC SDU映射到第二MAC PDU; 以及在第一传输块中发送所述第一MAC PDU，并在第二传输块中发送所述第二MAC PDU。 在一些方法示例中，封装可以包括分段PDCP PDU。 在一些示例中，该方法可以包括在第一传输块和第二传输块中发送成帧信息。 在一些示例中，传输块的成帧信息可以在传输块的至少一个MAC子报头中发送。

公开(公告)号：US09456358B2

公开(公告)日：2016-09-27

申请号：US13831098

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Aleksandar Damnjanovic ,  Peter Gaal ,  Yongbin Wei

IPC: H04W4/00 ,  H04W24/02 ,  H04L5/00 ,  H04L5/14 ,  H04W28/22

CPC classification number: H04W24/02 ,  H04J11/005 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0094 ,  H04L5/1469 ,  H04W28/22

Abstract: Techniques for indicating active channel state information reference signal (CSI-RS) configurations for a user equipment (UE) are disclosed. The UE may be configured with multiple CSI-RS configurations and may receive signaling indicating which of its CSI-RS configurations are active. Improved performance may be obtained by dynamically signaling the active CSI-RS configurations. In one example, the UE may receive first signaling (e.g., upper-layer signaling) indicating a plurality of CSI-RS configurations configured for the UE. The UE may receive second signaling (e.g., lower-layer signaling) indicating at least one active CSI-RS configuration for the UE. The active CSI-RS configuration(s) may include all or a subset of the plurality of CSI-RS configurations. The UE may perform at least one communication task based on the at least one active CSI-RS configuration for the UE. The communication task(s) may include de-rate matching, CSI reporting, cell set management, etc.

Abstract translation: 公开了用于指示用户设备（UE）的活动信道状态信息参考信号（CSI-RS）配置的技术。 UE可以配置有多个CSI-RS配置，并且可以接收指示其CSI-RS配置中哪一个是活动的信令。 通过动态地发送活动的CSI-RS配置可以获得改进的性能。 在一个示例中，UE可以接收指示为UE配置的多个CSI-RS配置的第一信令（例如，上层信令）。 UE可以接收指示UE的至少一个活动CSI-RS配置的第二信令（例如，较低层信令）。 有源CSI-RS配置可以包括多个CSI-RS配置的全部或一个子集。 UE可以基于UE的至少一个活动CSI-RS配置来执行至少一个通信任务。 通信任务可以包括去率匹配，CSI报告，小区集管理等。

公开(公告)号：US20160269154A1

公开(公告)日：2016-09-15

申请号：US15161113

申请日：2016-05-20

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04L5/0053 ,  H04W56/0045 ,  H04W72/0406

Abstract: Methods, systems, and devices are described for supporting common reference signaling in wireless communications systems. Some configurations introduce a phase discontinuity between common reference signal (CRS) transmissions on different subframes. This may address issues that may arise when a reduced CRS periodicity is utilized. Indicators may also be transmitted from base stations to user equipment (UEs) to indicate whether phase continuity may be assumed or not. Some configurations may support CRS sequence initialization. These tools and techniques may utilize an extended CRS sequence periodicity, which may increase the number of CRS sequences transmitted by a cell.

Abstract translation: 描述了用于支持无线通信系统中的公共参考信令的方法，系统和设备。 一些配置在不同子帧上的公共参考信号（CRS）传输之间引入相位不连续性。 这可能会解决当使用降低的CRS周期时可能出现的问题。 指示符还可以从基站发送到用户设备（UE），以指示是否可以假设相位连续性。 一些配置可能支持CRS序列初始化。 这些工具和技术可以利用扩展的CRS序列周期，其可以增加由小区发送的CRS序列的数量。

公开(公告)号：US09414319B2

公开(公告)日：2016-08-09

申请号：US14446320

申请日：2014-07-29

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Aleksandar Damnjanovic

IPC: H04W52/32 ,  H04W52/04 ,  H04L5/00 ,  H04W52/14

CPC classification number: H04W52/04 ,  H04L5/0048 ,  H04W52/02 ,  H04W52/146 ,  H04W52/325

Abstract: In an aspect of the disclosure, is directed to addressing UE proximity detection near non-serving base stations. Certain classes of base stations may activate and deactivate based on the presence of nearby UEs. In their deactivated state these base stations may employ no signaling or limited signaling. Networks employing such base stations may employ a discovery mechanism, as disclosed herein, to allow such base stations to detect or discover nearby UEs. In accordance with the disclosure, a UE may transmit the proximity SRS at a maximum power or another signal strength that can be determined by a listening base station. The listening base station may employ the signal to determine UE proximity and take appropriate steps, such as activating some aspects of its signaling, remaining inactive, or entering an alternative state of limited signaling or further UE detection.

Abstract translation: 在本公开的一个方面，涉及在非服务基站附近寻址UE邻近度检测。 基于邻近UE的存在，某些类型的基站可以激活和去激活。 在其去激活状态下，这些基站可以不使用信令或限制信令。 采用这种基站的网络可以采用本文公开的发现机制，以允许这样的基站检测或发现附近的UE。 根据本公开，UE可以以可由监听基站确定的最大功率或另一信号强度来发送接近SRS。 监听基站可以使用该信号来确定UE的邻近度，并采取适当的步骤，例如激活其信令的某些方面，保持不活动或进入有限信令或另外的UE检测的替代状态。