公开(公告)号：US20160337931A1

公开(公告)日：2016-11-17

申请号：US15148818

申请日：2016-05-06

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04W36/36 ,  H04L5/00 ,  H04H20/38 ,  H04W72/08 ,  H04W36/00 ,  H04W4/00 ,  H04W72/04

CPC classification number: H04W36/36 ,  H04H20/38 ,  H04L5/005 ,  H04W4/70 ,  H04W36/0083 ,  H04W48/20 ,  H04W72/0473 ,  H04W72/085

Abstract: Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.

Abstract translation: 提供小区选择技术用于可以采用一种或多种覆盖增强技术的小区的网络接入。 在初始捕获或唤醒时，可以是机器类型通信（MTC）设备的用户设备（UE）可以测量参考信号接收功率（RSRP），参考信号接收质量（RSRQ）或两者，并且确定 小区选择值至少部分地基于RSRP，RSRQ或其组合。 可以基于可以基于UE的测量精度能力来选择的偏移来确定小区选择值。 还描述了UE顺序访问尝试，可以包括相邻小区传输的覆盖增强的相邻小区列表信息和小区重选测量频率调整。

公开(公告)号：US09479303B2

公开(公告)日：2016-10-25

申请号：US13839227

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Hao Xu

IPC: H04L5/00 ,  H04B7/26 ,  H04L5/14

CPC classification number: H04L5/0048 ,  H04B7/2656 ,  H04L5/0023 ,  H04L5/1469

Abstract: Methods and apparatus for determining a PRS configuration in a dynamic TDD configuration adaptation are described. One example method generally includes determining a first PRS configuration for receiving PRS when communicating according to a first subframe configuration that defines one or more uplink subframes and one or more downlink subframes, receiving an indication of a switch from the first subframe configuration to a second subframe configuration, and determining a second PRS configuration for receiving PRS when communicating according to the second subframe configuration.

Abstract translation: 描述了在动态TDD配置适配中确定PRS配置的方法和装置。 一个示例性方法通常包括：确定用于在根据定义一个或多个上行链路子帧和一个或多个下行链路子帧的第一子帧配置进行通信时接收PRS的第一PRS配置，从第一子帧配置接收到交换机的指示到第二子帧 配置，并且确定用于在根据第二子帧配置进行通信时接收PRS的第二PRS配置。

公开(公告)号：US09467263B2

公开(公告)日：2016-10-11

申请号：US14313838

申请日：2014-06-24

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Durga Prasad Malladi ,  Rachel Wang

IPC: H04L27/00 ,  H04L5/00 ,  H04L27/26 ,  H04W52/24 ,  H04W52/32 ,  H04W52/16 ,  H04W52/48

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0039 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/2613 ,  H04W52/16 ,  H04W52/241 ,  H04W52/325 ,  H04W52/48

Abstract: Techniques for transmitting data and pilot for control information are described. In one aspect, a user equipment (UE) may spread a reference signal sequence with a first orthogonal sequence to obtain multiple pilot sequences. The UE may then send the multiple pilot sequences on multiple subcarriers in multiple symbol periods, one pilot sequence in each symbol period. The UE may modulate the reference signal sequence with control information (e.g., ACK information) to obtain a modulated sequence. The UE may spread the modulated sequence with a second orthogonal sequence to obtain multiple data sequences. The UE may then send the multiple data sequences on the multiple subcarriers in multiple symbol periods for data. In another aspect, the UE may send multiple pilot sequences on multiple subcarriers in multiple symbol periods separated by at least one symbol period, one pilot sequence in each symbol period.

Abstract translation: 描述用于发送数据的技术和用于控制信息的导频。 一方面，用户设备（UE）可以扩展具有第一正交序列的参考信号序列以获得多个导频序列。 然后，UE可以在多个符号周期中的多个子载波上发送多个导频序列，每个符号周期中有一个导频序列。 UE可以用控制信息（例如，ACK信息）来调制参考信号序列以获得调制序列。 UE可以用第二正交序列扩展调制序列以获得多个数据序列。 然后，UE可以在用于数据的多个符号周期中的多个子载波上发送多个数据序列。 在另一方面，UE可以在多个符号周期中的多个子载波上发送多个导频序列，该符号周期由每个符号周期中的至少一个符号周期，一个导频序列隔开。

公开(公告)号：US20160295609A1

公开(公告)日：2016-10-06

申请号：US15089528

申请日：2016-04-02

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen

IPC: H04W74/00 ,  H04L5/14 ,  H04W24/08 ,  H04W72/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may select a coverage enhancement (CE) level based on a coverage limitation. The UE may then receive system information from a base station indicating an index of CE levels and corresponding physical random access channel (PRACH) configurations, and the UE may transmit a random access preamble using the PRACH configuration for the selected CE level. For example, the UE may transmit the preamble based on a frequency offset that corresponds to the selected CE level. In some cases, the UE and base station may also associate groups of preambles with downlink (DL) CE levels. The UE may select a preamble from a group corresponding to a desired DL CE level for a random access response message. The base station may determine the DL CE level based on the group the preamble was selected from and respond accordingly.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 用户设备（UE）可以基于覆盖限制来选择覆盖增强（CE）级别。 然后，UE可以从基站接收指示CE级别和对应的物理随机接入信道（PRACH）配置的索引的系统信息，并且UE可以使用针对所选CE级别的PRACH配置来发送随机接入前导码。 例如，UE可以基于对应于所选择的CE级别的频率偏移来发送前导码。 在一些情况下，UE和基站还可以将前导码组与下行链路（DL）CE级别相关联。 UE可以从对应于期望的DL CE级别的组中为随机接入响应消息选择前导码。 基站可以基于选择前同步码的组来确定DL CE级别，并相应地进行响应。

公开(公告)号：US09444586B2

公开(公告)日：2016-09-13

申请号：US14507641

申请日：2014-10-06

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Wanshi Chen ,  Hao Xu ,  Xiaoxia Zhang ,  Peter Gaal

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04L1/1678 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1864 ,  H04L1/1887 ,  H04L1/189 ,  H04L5/0082 ,  H04L5/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a semi-persistent scheduling (SPS) message indicating transmission of a first packet during a first period of a first hybrid automatic repeat request (HARQ) process, and a configuration for TTI-bundled transmission. The apparatus transmits a first TTI-bundled packet on the first resources during the first period of the first HARQ process. The apparatus identifies second resources for transmitting a second TTI-bundled packet during a second period of the first HARQ process based on the SPS message. The apparatus determines whether to offset transmission of the second TTI-bundled packet to a period of a second HARQ process when at least one of the second resources for transmitting the second TTI-bundled packet overlaps with at least one resource used for retransmitting the first TTI-bundled packet according to the first HARQ process.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置在第一混合自动重传请求（HARQ）处理的第一周期期间接收指示第一分组的传输的半持续调度（SPS）消息，以及用于TTI绑定传输的配置。 该装置在第一HARQ进程的第一周期期间在第一资源上发送第一TTI绑定分组。 该装置基于SPS消息识别在第一HARQ进程的第二周期期间发送第二TTI绑定分组的第二资源。 当用于发送第二TTI绑定分组的第二资源中的至少一个与用于重传第一TTI的至少一个资源重叠时，该装置确定是否将第二TTI绑定分组的传输偏移到第二HARQ进程的周期 - 根据第一HARQ进程的数据包。

公开(公告)号：US20160226650A1

公开(公告)日：2016-08-04

申请号：US14988069

申请日：2016-01-05

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei ,  Hao Xu ,  Shimman Arvind Patel ,  Tao Luo ,  Michael Mao Wang

IPC: H04L5/14 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L5/14 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/1469 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communication are described. A wireless system utilizing one or more time-division duplexing (TDD) configured carriers may utilize a dual transmission time interval (TTI) structure (e.g., at the subframe level and symbol-level). The symbol level TTIs may be referred to as low latency (LL) TTIs, and may be organized within LL subframes. A LL subframe may be a subframe that is scheduled for transmissions in one direction (e.g., uplink or downlink, according to a TDD configuration) and may include multiple LL symbols scheduled for both uplink (UL) and downlink (DL) transmissions. Guard periods may be scheduled between adjacent LL symbols that have opposite directions of transmission to enable user equipment (UEs) to transition from receiving mode to transmit mode (or vice versa). The LL subframes may be transparent to receiving devices that do not support LL operations.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 利用一个或多个时分双工（TDD）配置的载波的无线系统可以利用双传输时间间隔（TTI）结构（例如，在子帧级和符号级）。 符号级TTI可以被称为低延迟（LL）TTI，并且可以被组织在LL子帧内。 LL子帧可以是被调度用于在一个方向（例如，根据TDD配置）的上行链路或下行链路）的传输的子帧，并且可以包括为上行链路（UL）和下行链路（DL）传输两者调度的多个LL符号。 可以在具有相反传输方向的相邻LL符号之间安排保护周期，以使得用户设备（UE）能够从接收模式转换到发射模式（反之亦然）。 对于不支持LL操作的接收设备，LL子帧可能是透明的。

公开(公告)号：US09407417B2

公开(公告)日：2016-08-02

申请号：US14140098

申请日：2013-12-24

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Hao Xu

IPC: H04L5/00 ,  H04W80/04 ,  H04W88/06 ,  H04W28/04 ,  H04W72/04 ,  H04L1/00

CPC classification number: H04L5/0057 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/003 ,  H04L2025/0342 ,  H04W72/085

Abstract: Methods, systems, and devices are described for wireless communications. The use of at least two channel quality indicator (CQI) tables is supported. One of the at least two CQI table is identified. The identified CQI table is used to generate a CQI value for a wireless channel. In addition, the use of at least two modulation and coding scheme (MCS) tables is supported. A transmission is received via a wireless channel. One of the at least two MCS tables is identified to use for the received transmission. Further, a transport block size (TBS) table is identified that is mapped from the identified MCS table. The identified TBS table is used to determine a size of the received transmission.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 支持使用至少两个信道质量指示符（CQI）表。 识别至少两个CQI表中的一个。 所识别的CQI表用于生成无线信道的CQI值。 此外，支持使用至少两个调制和编码方案（MCS）表。 通过无线信道接收传输。 识别出至少两个MCS表中的一个用于接收的传输。 此外，识别从所识别的MCS表映射的传输块大小（TBS）表。 所识别的TBS表用于确定所接收的传输的大小。

公开(公告)号：US20160183302A1

公开(公告)日：2016-06-23

申请号：US14971082

申请日：2015-12-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Srinivas Yerramalli ,  Tao Luo ,  Peter Gaal ,  Hao Xu

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

CPC classification number: H04W74/0808 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0091 ,  H04L27/0006 ,  H04W16/14 ,  H04W24/08

Abstract: Techniques are described for wireless communication. A first method includes monitoring, by a first wireless device, at least one predetermined symbol period of a subframe for an indication that a second wireless device has obtained access to a shared radio frequency spectrum; determining a starting symbol for a transmission by the second wireless device over the shared radio frequency spectrum based on detecting the indication; and receiving the transmission by the second wireless device over the shared radio frequency spectrum based on the determined starting symbol.

Abstract translation: 技术描述为无线通信。 第一种方法包括由第一无线设备监视子帧的至少一个预定符号周期，用于第二无线设备获得对共享射频频谱的访问的指示; 基于检测到所述指示，确定由所述第二无线设备通过所述共享射频频谱发送的起始符号; 以及基于所确定的起始符号，通过共享射频频谱接收第二无线设备的传输。

公开(公告)号：US09374845B2

公开(公告)日：2016-06-21

申请号：US13896250

申请日：2013-05-16

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04W76/04 ,  H04L12/807 ,  H04W52/44

CPC classification number: H04W76/048 ,  H04L47/27 ,  H04W52/44 ,  H04W76/28

Abstract: A method for wireless communication may include a mobile entity receiving a timing indicator for a discontinuous reception (DRX) cycle during a DRX mode, and adjusting at least an acknowledgement timing in response to receiving the timing indicator for the DRX cycle. A base station in communication with the mobile entity may provide a timing indicator for a DRX cycle during a DRX mode to the mobile entity, transmit at least one of downlink (DL) data or an uplink (UL) grant indicator to the mobile entity at a first time, and waiting from the first time for a time period indicated by the timing indicator before receiving at least one of an acknowledgement of the DL data or UL data responsive to the UL grant from the mobile entity.

Abstract translation: 一种用于无线通信的方法可以包括在DRX模式期间接收用于不连续接收（DRX）周期的定时指示符的移动实体，并且响应于接收到DRX周期的定时指示符来调整至少一个确认定时。 与移动实体通信的基站可以在DRX模式期间为移动实体提供用于DRX周期的定时指示符，向移动实体发送下行链路（DL）数据或上行链路（UL）授权指示符中的至少一个， 并且在从所述移动实体接收到响应于所述UL授权的DL数据或UL数据的确认中的至少一个之前，首次等待由所述定时指示符指示的时间段。

公开(公告)号：US09369252B2

公开(公告)日：2016-06-14

申请号：US14162484

申请日：2014-01-23

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04 ,  H04W56/00

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。