公开(公告)号：US09674710B2

公开(公告)日：2017-06-06

申请号：US14574143

申请日：2014-12-17

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Hao Xu

IPC: H04L1/00 ,  H04W16/18 ,  H04W72/04 ,  H04W72/08 ,  H04L5/02 ,  H04W16/26 ,  H04W48/08 ,  H04L1/08

CPC classification number: H04W16/18 ,  H04B7/0697 ,  H04L1/08 ,  H04L1/1816 ,  H04L5/02 ,  H04W16/26 ,  H04W48/08 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/085

Abstract: Methods, systems, and devices are described for coverage enhancement in a wireless communication system. A base station may select different coverage enhancement techniques for different channels, and transmit the channels using the selected coverage enhancement techniques. Examples of coverage enhancement techniques that may be selected include repetition within subframes, repetition across different subframes, power boosting, and spatial multiplexing. These and other techniques may be used alone or in combination. In some examples, a user equipment (UE) may determine a coverage enhancement need and may monitor a control channel accordingly.

公开(公告)号：US09635659B2

公开(公告)日：2017-04-25

申请号：US14023300

申请日：2013-09-10

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Mariam Motamed ,  Wanshi Chen ,  Alexei Y. Gorokhov ,  Dominique F. Bressanelli ,  Levent Aydin

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18

CPC classification number: H04W72/042 ,  H04L1/0046 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/1867 ,  H04L5/0053 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/10

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines a first decoding candidate in a first search space and a second decoding candidate in a second search space, where the first decoding candidate and the second decoding candidate have a same size but different definitions of information fields, identifies a difference in the information fields, and determines one of the first decoding candidate and the second decoding candidate as a valid candidate based on the identified difference. The apparatus further generates first control information for transmitting in a first search space, codes the first control information, wherein the code applied to the first control information is specific to the first search space and different from code applied to second control information in a second search space, and transmits the coded first control information in the first search space.

公开(公告)号：US09591492B2

公开(公告)日：2017-03-07

申请号：US13671404

申请日：2012-11-07

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal

IPC: H04W88/02 ,  H04W88/08 ,  H04L1/00 ,  H04W24/00 ,  H04W72/12 ,  H04W72/08

CPC classification number: H04W24/00 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/082 ,  H04W72/1247 ,  H04W88/02 ,  H04W88/08

Abstract: Collision handling of channel state information (CSI) reports is described for enhanced inter-cell interference coordination (eICIC), coordinated multipoint transmission (CoMP), and/or carrier aggregation (CA). Various aspects include prioritization schemes to resolve collisions between different CSI reporting sets in relation to the same component carrier (CC) used with transmission. Multiple stages of prioritization may identify CSI for a report based on various criteria. Tie breaker criteria may be defined for priority among CSI reports that changes for different subframes. In other aspects, PUSCH is utilized to transmit CSI for prioritized reporting sets in a subframe. In yet other aspects, if parallel PUCCH is supported, colliding CSI may be handled on a per PUCCH basis. Other aspects may allow for prioritizing periodic CSI within each of multiple CCs, and then prioritizing over different CCs to handle an interaction of CSI reports for CA, eICIC and/or CoMP.

Abstract translation: 描述了用于增强小区间干扰协调（eICIC），协同多点传输（CoMP）和/或载波聚合（CA）的信道状态信息（CSI）报告的冲突处理。 各方面包括优先化方案，以解决与传输使用的相同分量载波（CC）相关的不同CSI报告集之间的冲突。 基于各种标准的多个阶段的优先级可以识别报告的CSI。 可以针对CSI报告中针对不同子帧的更改的优先级定义断线器标准。 在其它方面，利用PUSCH在子帧中传送用于优先化报告集的CSI。 在其他方面，如果支持并行PUCCH，则可以在每个PUCCH的基础上处理冲突CSI。 其他方面可以允许在多个CC的每一个内对周期性CSI进行优先级排序，然后对不同的CC进行优先级排序以处理CA，eICIC和/或CoMP的CSI报告的交互。

公开(公告)号：US09591429B2

公开(公告)日：2017-03-07

申请号：US13844176

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Wanshi Chen ,  Yongbin Wei ,  Peter Gaal ,  Tingfang Ji

IPC: H04W4/00 ,  H04W48/12 ,  H04W28/06

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04W4/70 ,  H04W16/28 ,  H04W28/06 ,  H04W48/12 ,  H04W84/042

Abstract: The described aspects include methods and apparatus providing MTC in a wireless network. In an aspect, a narrow bandwidth within a wide system bandwidth is allocated for communicating data related to MTC. MTC control data generated for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth is transmitted over the one or more MTC control channels. The one or more MTC channels are multiplexed with one or more legacy channels over the wide system bandwidth. Other aspects are provided for transmission mode and content of the MTC control data or other MTC data.

Abstract translation: 所描述的方面包括在无线网络中提供MTC的方法和装置。 在一个方面，在宽系统带宽内的窄带宽被分配用于传送与MTC有关的数据。 通过一个或多个MTC控制信道发送用于通过用于在窄带宽内的MTC UE的一个或多个MTC控制信道进行通信的MTC控制数据。 一个或多个MTC信道在宽系统带宽上与一个或多个传统信道复用。 为MTC控制数据或其他MTC数据的传输模式和内容提供其他方面。

公开(公告)号：US20170064743A1

公开(公告)日：2017-03-02

申请号：US15244385

申请日：2016-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Madhavan Srinivasan Vajapeyam ,  Wanshi Chen ,  Alberto Rico Alvarino ,  Renqiu Wang ,  Hao Xu ,  Seyed Ali Akbar Fakoorian ,  Shimman Arvind Patel ,  Peter Gaal

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

CPC classification number: H04W74/0833 ,  H04L5/0048 ,  H04W16/30 ,  H04W72/02 ,  H04W72/0453 ,  H04W74/002

Abstract: Random access techniques may use subcarriers allocated for random access requests in narrowband communication. Physical resources may be selected for transmission of a random access request based on a “coverage class” of a user equipment (UE). In some examples, a set of coverage classes may be identified based on one or more UE channel conditions, such as pathloss. Each coverage class may have one or more associated subcarriers of a set of subcarriers in a narrowband bandwidth, and random access messages may be transmitted using the associated subcarrier(s) for the coverage class of a UE. In some examples, different coverage classes may have different numbers of redundant transmissions of a random access message, which may be based on channel conditions associated with a particular coverage class. A UE, based on a measured channel condition, may determine a coverage class and select a subcarrier based on the determined coverage class.

Abstract translation: 随机接入技术可以使用在窄带通信中分配用于随机接入请求的子载波。 可以基于用户设备（UE）的“覆盖类别”来选择用于发送随机接入请求的物理资源。 在一些示例中，可以基于一个或多个UE信道条件（诸如路径损耗）来识别一组覆盖类别。 每个覆盖类别可以在窄带带宽中具有一组子载波的一个或多个相关联的子载波，并且可以使用用于UE的覆盖类别的相关联的子载波来发送随机接入消息。 在一些示例中，不同的覆盖类别可以具有不同数量的随机接入消息的冗余传输，其可以基于与特定覆盖类别相关联的信道条件。 基于测量的信道条件，UE可以确定覆盖类别并且基于所确定的覆盖类别来选择子载波。

公开(公告)号：US20170064706A1

公开(公告)日：2017-03-02

申请号：US15188098

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen

IPC: H04W72/04 ,  H04W28/04 ,  H04W28/02 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L1/1614 ,  H04L1/1825 ,  H04L1/1861 ,  H04L1/1896 ,  H04L5/0055 ,  H04W28/0236 ,  H04W28/04 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a data transmission during a transmission time interval (TTI) that has one duration, and the device may transmit a responsive control message (e.g., acknowledgment information) in a subsequent TTI that has a different duration (e.g., a greater duration). In some cases, the control message may include bundled acknowledgment information for multiple downlink transmissions. The control message may, for instance, include acknowledgment information for data received during several TTIs having one duration bundled with acknowledgment information for data received during TTIs that have a different duration. The acknowledgment information may be compressed using, for example, a starting point and run length of consecutive negative acknowledgments.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以在具有一个持续时间的传输时间间隔（TTI）期间接收数据传输，并且设备可以在具有不同持续时间的后续TTI中发送响应控制消息（例如，确认信息）（例如，更大的 持续时间）。 在一些情况下，控制消息可以包括用于多个下行链路传输的捆绑的确认信息。 例如，控制消息可以包括在具有与具有不同持续时间的TTI期间接收的数据的确认信息捆绑的一个持续时间的几个TTI期间接收的数据的确认信息。 可以使用例如连续的否定确认的起始点和游程长度来压缩确认信息。

公开(公告)号：US09584285B2

公开(公告)日：2017-02-28

申请号：US14568065

申请日：2014-12-11

Applicant: QUALCOMM INCORPORATED

Inventor： Alan Barbieri ,  Tingfang Ji ,  Hao Xu ,  Wanshi Chen

IPC: H04W72/00 ,  H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04W24/10 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04L5/0053 ,  H04L5/0035 ,  H04L5/0073 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/082 ,  H04W88/02 ,  H04W88/08

Abstract: Periodic over-the-air channel state information (CSI) reporting to serving cells and one or more non-serving cells via a control channel multi-point attachment is disclosed. The channel state information report may be transmitted based on information indicating how to transmit the channel state information report to the non-serving cell. The information indicating how to transmit the channel state information report may be provided by the serving eNodeB. The information may include a periodicity, offset parameters, timing advance commands, power control commands, and/or an aperiodic report request.

Abstract translation: 公开了经由控制信道多点连接向服务小区和一个或多个非服务小区报告的定期空中信道状态信息（CSI）。 可以基于指示如何将信道状态信息报告发送到非服务小区的信息来发送信道状态信息报告。 指示如何发送信道状态信息报告的信息可以由服务eNodeB提供。 信息可以包括周期性，偏移参数，定时提前命令，功率控制命令和/或非周期性报告请求。

公开(公告)号：US09565593B2

公开(公告)日：2017-02-07

申请号：US14281636

申请日：2014-05-19

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/08 ,  H04W28/02 ,  H04W74/08 ,  H04W24/02 ,  H04W28/16 ,  H04W72/04 ,  H04W56/00 ,  H04W74/04 ,  H04W16/14 ,  H04W76/02 ,  H04L1/00 ,  H04L27/26 ,  H04L27/00 ,  H04W48/10 ,  H04W72/08 ,  H04W74/00 ,  H04L5/14 ,  H04L5/00 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08

CPC classification number: H04W16/14 ,  H04J11/00 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/14 ,  H04L5/1469 ,  H04L27/0006 ,  H04L27/2602 ,  H04W24/02 ,  H04W28/0252 ,  H04W28/0289 ,  H04W28/08 ,  H04W28/16 ,  H04W48/10 ,  H04W56/001 ,  H04W56/002 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/082 ,  H04W74/006 ,  H04W74/04 ,  H04W74/0808 ,  H04W74/0816 ,  H04W74/0833 ,  H04W84/12 ,  H04W88/02 ,  H04W88/06 ,  H04W88/08

Abstract: Methods and apparatuses are described in which an unlicensed spectrum is used for Long Term Evolution (LTE) communications. A first method includes comparing past transmission activity on an unlicensed spectrum to an activity threshold, transmitting a first subframe type in the unlicensed spectrum during a next active transmission when the past transmission activity is greater than the activity threshold, and transmitting a second subframe type in the unlicensed spectrum during a next active transmission when the past transmission activity is lesser than the activity threshold, the second subframe type comprising a more robust subframe type than the first subframe type. A second method includes generating one or both of PUCCH signals and PUSCH signals based on interleaved signals that increase nominal bandwidth occupancy in an unlicensed spectrum, and transmitting the generated signals in the unlicensed spectrum. A third method includes receiving the PUCCH signals and the PUSCH signals.

Abstract translation: 对长期演进（LTE）通信中使用非许可频谱的方法和装置进行描述。 第一种方法包括将未许可频谱上的过去传输活动与活动阈值进行比较，当过去传输活动大于活动阈值时，在下一活动传输期间，在非许可频谱中发送第一子帧类型，并将 在过去传输活动小于活动阈值的下一活动传输期间的未许可频谱，第二子帧类型包括比第一子帧类型更强壮的子帧类型。 第二种方法包括基于增加非许可频谱中的标称带宽占用的交织信号产生PUCCH信号和PUSCH信号中的一个或两者，以及在未许可频谱中发送所生成的信号。 第三种方法包括接收PUCCH信号和PUSCH信号。

公开(公告)号：US09553706B2

公开(公告)日：2017-01-24

申请号：US14275803

申请日：2014-05-12

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Michael Mao Wang ,  Wanshi Chen ,  Peter Gaal ,  Yongbin Wei ,  Aleksandar Damnjanovic ,  Hao Xu ,  Taesang Yoo

IPC: H04L5/00 ,  H04W24/02 ,  H04L25/02

CPC classification number: H04L5/0053 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0058 ,  H04L25/0202 ,  H04L25/0224 ,  H04L25/0236 ,  H04W24/02

Abstract: Reference signals may not uniformly span over time and/or frequency on a resource unit. For example, reference signals may non-uniformly occupy symbols of a subframe. Alternatively, reference signals normally transmitted over certain tones of a subframe may have to be punctured to avoid collisions with a PSS and/or SSS transmitted over the same tones. Consequently, a UE may only be able to use a subset of reference signal tones for performing channel estimation. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided for improving channel estimation under a non-uniform signal pattern. The apparatus indicates to a UE to utilize a subset of reference signals to derive a channel estimate for demodulating data in a specific subframe, and transmits a plurality of subframes, the plurality of subframes including the reference signals and the specific subframe, the specific subframe including a PSS and/or SSS.

Abstract translation: 参考信号可能不会在资源单元上的时间和/或频率上均匀地跨越。 例如，参考信号可能不均匀地占据子帧的符号。 或者，通常在子帧的某些音调上发送的参考信号可能必须被打孔以避免与通过相同音调发送的PSS和/或SSS的冲突。 因此，UE可能仅能够使用用于执行信道估计的参考信号音调的子集。 因此，提供了一种用于无线通信的方法，装置和计算机程序产品，用于在非均匀信号模式下改进信道估计。 该设备向UE指示使用参考信号的子集来导出用于在特定子帧中解调数据的信道估计，并且发送包括参考信号和特定子帧的多个子帧，所述特定子帧包括 PSS和/或SSS。

公开(公告)号：US20170013570A1

公开(公告)日：2017-01-12

申请号：US15199619

申请日：2016-06-30

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Wanshi Chen ,  Hao Xu

IPC: H04W52/36 ,  H04W24/08 ,  H04L29/12 ,  H04W74/08 ,  H04W4/00 ,  H04W72/04

CPC classification number: H04W52/365 ,  H04L61/6022 ,  H04W4/70 ,  H04W24/08 ,  H04W52/146 ,  H04W52/242 ,  H04W72/0413 ,  H04W74/0833

Abstract: Enhanced power headroom reporting (ePHR) for MTC devices. The ePHR techniques may include configuration and triggering of reporting when a corresponding change to a coverage enhancement (CE) level is likely to result. For example, ePHR may be based on parameters more directly related to PH change instead of PL changes. MTC devices may be configured with multiple thresholds for ePHR reporting that define ePHR regions associated with CE levels. In some examples, an ePHR triggered at the MAC level is used to trigger sending a request for uplink data resources. Legacy PH reporting may be disabled when ePHR is configured to reduce overhead.

Abstract translation: 增强MTC设备的功率余量报告（ePHR）。 当可能导致对覆盖增强（CE）级别的相应改变时，ePHR技术可以包括报告的配置和触发。 例如，ePHR可以​​基于与PH变化直接相关的参数而不是PL变化。 可以将MTC设备配置为用于定义与CE级别相关联的ePHR区域的ePHR报告的多个阈值。 在一些示例中，在MAC级触发的ePHR用于触发发送对上行链路数据资源的请求。 当配置ePHR以减少开销时，传统PH报告可能会被禁用。