公开(公告)号：WO2015023909A3

公开(公告)日：2015-02-19

申请号：PCT/US2014/051183

申请日：2014-08-15

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Wanshi ,  GAAL, Peter ,  MALLADI, Durga, Prasad ,  LUO, Tao ,  JI, Tingfang ,  BHUSHAN, Naga ,  WEI, Yongbin ,  DAMNJAVOVIC, Aleksandar

IPC: H04W72/12 ,  H04W16/14

Abstract: Long term evolution (LTE)/LTE-Advanced (LTE-A) deployments with unlicensed spectrum leverage more efficient LTE communication aspects over unlicensed spectrum, such as over WIFI radio access technology. In order to accommodate such communications, various uplink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.

公开(公告)号：WO2015023656A1

公开(公告)日：2015-02-19

申请号：PCT/US2014/050700

申请日：2014-08-12

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Aleksandar ,  BHUSHAN, Naga ,  CHEN, Wanshi ,  MALLADI, Durga, Prasad ,  WEI, Yongbin ,  LUO, Tao ,  JI, Tingfang ,  GAAL, Peter

IPC: H04L1/18 ,  H04L1/16

CPC classification number: H04L5/0053 ,  H04L1/1812 ,  H04L1/1829 ,  H04L1/1835 ,  H04L1/1854 ,  H04L1/1874 ,  H04L5/001 ,  H04L5/0055

Abstract: Methods, systems, and apparatuses are described for wireless communications. In one method, a sequence number corresponding to a data frame and one or more data subframes of the data frame may be transmitted over an unlicensed spectrum to a user equipment (UE), and hybrid automatic repeat request (HARQ) feedback for the one or more data subframes may be received over the unlicensed spectrum, from the UE, when the sequence number corresponding to the data frame is received by the UE in a specified order. In another method, a sequence number corresponding to a data frame and HARQ feedback may be transmitted over an unlicensed spectrum to a UE, and one or more data subframes may be received over the unlicensed spectrum, from the UE, in response to the HARQ feedback when the sequence number corresponding to the data frame is received by the UE in a specified order.

Abstract translation: 为无线通信描述了方法，系统和装置。 在一种方法中，对应于数据帧的序列号和数据帧的一个或多个数据子帧可以通过非授权频谱发送到用户设备（UE），以及混合自动重传请求（HARQ）反馈 当UE以指定的顺序接收与数据帧相对应的序列号时，可以通过未许可频谱从UE接收更多的数据子帧。 在另一种方法中，对应于数据帧和HARQ反馈的序列号可以通过非授权频谱发送到UE，并且响应于HARQ反馈，可以通过未许可频谱从UE接收来自UE的一个或多个数据子帧 当UE以指定的顺序接收与数据帧对应的序列号时。

公开(公告)号：WO2014186382A1

公开(公告)日：2014-11-20

申请号：PCT/US2014/037882

申请日：2014-05-13

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  WANG, Michael Mao ,  CHEN, Wanshi ,  GAAL, Peter ,  WEI, Yongbin ,  DAMNJANOVIC, Aleksandar ,  XU, Hao ,  YOO, Taesang

IPC: H04L5/00 ,  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：WO2014165468A1

公开(公告)日：2014-10-09

申请号：PCT/US2014/032454

申请日：2014-04-01

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Wanshi ,  LUO, Tao ,  XU, Hao ,  GAAL, Peter ,  YOO, Taesang ,  WEI, Yongbin ,  MALLADI, Durga, Prasad

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04W72/02 ,  H04J11/005 ,  H04L5/003 ,  H04W72/082

Abstract: A wireless user equipment (UE) may receive a downlink transmission from a base station in a first subframe of a first subframe configuration, and determine that a neighboring base station is operating according to a second subframe configuration. The UE may modify interference operations for the downlink transmission in the first subframe based on the determination to account for the neighboring base station operating according to the different subframe configuration. Modifying interference operations may include, for example, skipping interference operations, applying different interference operations to a subframe or a portion of a subframe, or a combination thereof. Modifying interference operations may be based on one or more characteristics of the neighboring base station communications.

Abstract translation: 无线用户设备（UE）可以在第一子帧配置的第一子帧中从基站接收下行链路传输，并且根据第二子帧配置来确定相邻基站正在工作。 UE可以基于对根据不同子帧配置进行操作的相邻基站的确定来修改第一子帧中的下行链路传输的干扰操作。 修改干扰操作可以包括例如跳过干扰操作，对子帧或子帧的一部分应用不同的干扰操作，或其组合。 修改干扰操作可以基于相邻基站通信的一个或多个特性。

公开(公告)号：WO2014164271A1

公开(公告)日：2014-10-09

申请号：PCT/US2014/021617

申请日：2014-03-07

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Wanshi ,  LUO, Tao ,  XU, Hao ,  YOO, Taesang ,  GAAL, Peter ,  WEI, Yongbin ,  MALLADI, Durga Prasad

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04B1/707 ,  H04B7/0617 ,  H04J11/0023 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0062 ,  H04L5/0066 ,  H04L5/0073 ,  H04L5/0092 ,  H04W52/244 ,  H04W72/0426

Abstract: For an enhanced physical downlink control channel (EPDCCH), unlimited traffic-to-pilot ratio (TPR) variations across resource elements of a physical resource block (PRB) pair is problematic because of the detrimental affect the variations will have on the ability of a user equipment (UE) to perform inter-cell/intra-cell interference suppression (IS) and/or interference cancellation (IC) on EPDCCH of an interfering cell. A TPR limitation is placed on EPDCCH to facilitate IS/IC without causing practical limitations on EPDCCH management by an eNB. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided. The apparatus identifies a plurality of resource elements of at least one PRB pair for transmitting one or more control channels, divides the plurality of identified resource elements into one or more groups, and restricts a plurality of resource elements in a respective group to a TPR.

Abstract translation: 对于增强的物理下行链路控制信道（EPDCCH），物理资源块（PRB）对的资源元素之间的无限的业务导频比（TPR）变化是有问题的，因为变化将对于 用户设备（UE）在干扰小区的EPDCCH上执行小区间/小区内干扰抑制（IS）和/或干扰消除（IC）。 在EPDCCH上设置TPR限制以便于IS / IC，而不会对eNB的EPDCCH管理造成实际的限制。 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。 该装置识别用于发送一个或多个控制信道的至少一个PRB对的多个资源元素，将多个识别的资源元素划分为一个或多个组，并将相应组中的多个资源元素限制为TPR。

公开(公告)号：WO2014130570A1

公开(公告)日：2014-08-28

申请号：PCT/US2014/017191

申请日：2014-02-19

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Aleksandar ,  MALLADI, Durga Prasad ,  GUPTA, Ajay ,  GAAL, Peter ,  CHEN, Wanshi ,  WEI, Yongbin ,  LUO, Tao

IPC: H04W52/02

CPC classification number: H04W74/006 ,  H04J11/0069 ,  H04L5/0032 ,  H04W36/0077 ,  H04W36/34 ,  H04W48/12 ,  H04W52/0206 ,  H04W74/0833

Abstract: A method, a computer program product, and an apparatus are provided. The apparatus may be a UE. The UE receives an information block from a first base station while camped on a second base station. In an aspect, the information block includes an indication of a random access configuration for performing at least a part of a random access procedure. The UE determines to reselect to the first base station from the second base station. The UE performs at least a part of a random access procedure with the first base station based on the indicated random access configuration to reselect from a second base station to the first base station.

Abstract translation: 提供了一种方法，计算机程序产品和装置。 该装置可以是UE。 UE在第二基站驻留时，从第一基站接收信息块。 在一方面，信息块包括用于执行随机访问过程的至少一部分的随机访问配置的指示。 UE确定从第二基站重新选择到第一基站。 UE基于所指示的随机接入配置，与第一基站进行随机接入过程的至少一部分，以从第二基站重新选择到第一基站。

公开(公告)号：WO2014116892A1

公开(公告)日：2014-07-31

申请号：PCT/US2014/012852

申请日：2014-01-24

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Aleksandar ,  CHEN, Wanshi ,  GAAL, Peter ,  MALLADI, Durga, Prasad ,  LUO, Tao ,  WEI, Yongbin ,  XU, Hao

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：WO2014113243A3

公开(公告)日：2014-07-24

申请号：PCT/US2014/010552

申请日：2014-01-07

Applicant: QUALCOMM INCORPORATED

Inventor： XU, Hao ,  JI, Tingfang ,  GAAL, Peter ,  CHEN, Wanshi ,  FAN, Zhifei ,  WEI, Yongbin

IPC: H04L1/00

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE determines CSI. The UE determines whether to send the CSI based on at least one of a timer or a threshold. The UE sends the CSI upon determining to send the CSI. The UE may send the CSI in a MAC header upon determining to send the CSI. When the UE determines whether to send the CSI based on the threshold, the UE may determine whether to send the CSI based on a difference between the CSI and reference CSI. The UE may determine the reference CSI based on at least one of previously reported CSI, fixed CSI, or an MCS of a received data transmission from a base station. The UE may send CSI to the base station in an initial connection setup with the base station.

公开(公告)号：WO2014110515A1

公开(公告)日：2014-07-17

申请号：PCT/US2014/011322

申请日：2014-01-13

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  MALLADI, Durga ,  WEI, Yongbin ,  CHEN, Wanshi ,  DAMNJANOVIC, Aleksandar

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0044 ,  H04L5/0048 ,  H04W72/042

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE identifies properties associated with reference signals of a received payload. The properties associated with reference signals of the received payload may include a reference signal structure and/or a traffic to pilot ratio. The UE determines a payload structure based on the identified properties. Subsequently, the UE decodes the received payload based on the determined payload structure. The UE may receive mapping information indicating a mapping between possible properties associated with reference signals and possible payload structures. The UE may determine the payload structure further based on the received mapping information. The UE may receive the mapping information through a broadcast or RRC signaling.

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。 该装置可以是UE。 UE识别与接收到的有效载荷的参考信号相关联的属性。 与所接收的有效载荷的参考信号相关联的属性可以包括参考信号结构和/或业务与导频比。 UE基于所识别的属性来确定有效载荷结构。 随后，UE基于所确定的有效负载结构来解码所接收的有效载荷。 UE可以接收指示与参考信号和可能的有效负载结构相关联的可能性质之间的映射的映射信息。 UE可以基于接收到的映射信息进一步确定有效载荷结构。 UE可以通过广播或RRC信令来接收映射信息。

公开(公告)号：WO2014011427A1

公开(公告)日：2014-01-16

申请号：PCT/US2013/048866

申请日：2013-07-01

Applicant: QUALCOMM INCORPORATED

Inventor： XU, Hao ,  LUO, Tao ,  JI, Tingfang ,  CHEN, Wanshi ,  GAAL, Peter ,  WEI, Yongbin ,  HORN, Gavin B.

IPC: H04W52/02 ,  H04W48/14

CPC classification number: H04W72/005 ,  H04W48/12 ,  H04W48/14 ,  H04W52/0206 ,  Y02B70/32 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: The described aspects include methods and apparatus for activating a transmitter to communicate in a wireless network. A small cell can determine to activate the transmitter to serve user equipment (UE) in a wireless network. The small cell can then broadcast a portion of a set of broadcast signals in a radio frame and broadcast a remaining portion of the set of broadcast signals along with the portion of the set of broadcast signals in a subsequent radio frame. By refraining from immediately broadcasting all broadcast signals, the small cell can mitigate interference to other small cells. In addition, a UE can determine whether to generate random access channel (RACH) sequences for proximity determination or uplink timing synchronization based on parameters received in a RACH order. Moreover, a small cell with an active transmitter can decode discovery signals from a device to facilitate handover determination.

Abstract translation: 所描述的方面包括用于激活发射机以在无线网络中通信的方法和装置。 小小区可以确定激活发射机以在无线网络中为用户设备（UE）提供服务。 然后，小小区可以在无线电帧中广播一组广播信号的一部分，并且在随后的无线电帧中广播广播信号组的剩余部分以及该组广播信号的部分。 通过不立即广播所有广播信号，小小区可以减轻对其他小小区的干扰。 此外，UE可以基于以RACH顺序接收的参数来确定是否生成用于接近确定或上行链路定时同步的随机接入信道（RACH）序列。 此外，具有主动发射机的小小区可以对来自设备的发现信号进行解码以促进切换确定。