公开(公告)号：US09654994B2

公开(公告)日：2017-05-16

申请号：US15142573

申请日：2016-04-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Benoit Pelletier ,  Paul Marinier ,  Hongsan Sheng ,  Kiran K. Vanganuru ,  Diana Pani

IPC: H04W24/02 ,  H04W72/04 ,  H04J11/00 ,  H04L5/14 ,  H04W28/14 ,  H04L29/12 ,  H04W72/12 ,  H04L5/00 ,  H04W72/08 ,  H04W24/10 ,  H04W76/02

CPC classification number: H04W24/02 ,  H04J11/00 ,  H04L5/005 ,  H04L5/14 ,  H04L61/6022 ,  H04W24/10 ,  H04W28/14 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1215 ,  H04W72/1226 ,  H04W76/14

Abstract: Channel quality may be measured in a device-to-device (D2D) communication network. The D2D communication network may include one or more D2D wireless transmit/receive units (WTRUs), wherein the D2D WTRUs may communicate using a D2D bandwidth. A D2D WTRU may receive a channel measurement resource configuration corresponding to a channel measurement resource. The D2D WTRU may further receive an RS on the channel measurement resource. The D2D WTRU may measure one or more channel state parameters from the channel measurement resource for a part of bandwidth overlapping with a D2D communication bandwidth, when the RS bandwidth is greater than the D2D communication bandwidth. The D2D WTRU may report the channel state parameters to a controlling entity. The controlling entity may configure a D2D frequency allocation between a transmitting device and a receiving device. The D2D frequency allocation may be based on the time averaged measurement.

公开(公告)号：US20160134437A1

公开(公告)日：2016-05-12

申请号：US14996676

申请日：2016-01-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yingxue K. Li ,  Hongsan Sheng ,  Guodong Zhang ,  Philip J. Pietraski

IPC: H04L25/02 ,  H04L29/06 ,  H04L5/00 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04L25/0226 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03343 ,  H04L25/03891 ,  H04L65/4076

Abstract: A method and apparatus for using demodulation reference signal (DM-RS) based channel state information (CSI) feedback in Orthogonal Frequency Division Multiplexing-multiple-input multiple-output (OFDM-MIMO) systems is disclosed. A wireless transmit/receive unit (WTRU) may include: a receiver configured to receive broadcast information from an eNodeB, wherein the broadcast information is received by a plurality of WTRUs; and a processor configured to derive, from the received broadcast information, physical resource blocks having demodulation reference signals (DM-RS) and precoding information of the DM-RS; the receiver and the processor further configured to derive a channel estimation using the DM-RS received in the physical resource blocks, wherein the plurality of WTRUs derive a channel estimation using the DM-RS received in the physical resource blocks.

Abstract translation: 公开了一种在正交频分复用多输入多输出（OFDM-MIMO）系统中使用基于解调参考信号（DM-RS）的信道状态信息（CSI）反馈的方法和装置。 无线发射/接收单元（WTRU）可以包括：被配置为从eNodeB接收广播信息的接收机，其中所述广播信息由多个WTRU接收; 以及处理器，被配置为从所接收的广播信息中导出具有DM-RS的解调参考信号（DM-RS）和预编码信息的物理资源块; 接收机和处理器还被配置为使用在物理资源块中接收的DM-RS导出信道估计，其中多个WTRU使用在物理资源块中接收的DM-RS导出信道估计。

公开(公告)号：US20130322277A1

公开(公告)日：2013-12-05

申请号：US13906193

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC

Inventor： Kiran K. Vanganuru ,  Hongsan Sheng ,  Gregory S. Sternberg ,  Tao Deng ,  Balaji Raghothaman ,  Ravikumar V. Pragada ,  Zhuorong Deng ,  Steven Ferrante ,  Paul Marinier ,  Benoit Pelletier ,  Diana Pani

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0051

Abstract: Disclosed herein are measurement and interference avoidance for direct device-to-device (D2D) links. A method may be implemented by a wireless transmit/receive unit (WTRU). The method may include determining a sounding reference signal (SRS) to detect high interference and facilitate measurements on a link with another WTRU. The method may also include using the SRS on a direct link with another WTRU.

Abstract translation: 这里公开了直接设备到设备（D2D）链路的测量和干扰避免。 无线发射/接收单元（WTRU）可以实现一种方法。 该方法可以包括确定探测参考信号（SRS）以检测高干扰并促进对与另一WTRU的链路的测量。 该方法还可以包括在与另一WTRU的直接链路上使用SRS。

公开(公告)号：US09357459B2

公开(公告)日：2016-05-31

申请号：US14363457

申请日：2012-12-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Balaji Raghothaman ,  Ravikumar V. Pragada ,  Zhuorong Deng ,  Tao Deng ,  Gregory S. Sternberg ,  Kiran K. Vanganuru ,  Hongsan Sheng ,  Steven Ferrante

IPC: H04W36/08 ,  H04W76/02 ,  H04W72/04 ,  H04W36/00 ,  H04W88/04 ,  H04W76/04

CPC classification number: H04B7/15507 ,  H04W36/00 ,  H04W36/08 ,  H04W40/22 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/10 ,  H04W76/12 ,  H04W76/14 ,  H04W76/25 ,  H04W76/27 ,  H04W88/04

Abstract: A method and apparatus for cross link (XL) establishment are disclosed. In the method and apparatus, a XL between a terminal wireless transmit/receive unit (T-WTRU) and a helper WTRU (H-WTRU) is established. The T-WTRU and the H-WTRU may be configured to operate in a plurality of RRC states and a plurality of RRC substates. To establish the XL, neighbor discovery, association information exchange, and a H-WTRU selection may be performed. Radio resource control (RRC) configuration of the T-WTRU and the H-WTRU may also be performed. In the method and apparatus, coverage for a T-WTRU may be handed over between a network and a H-WTRU or between two H-WTRUs.

Abstract translation: 公开了一种用于交叉（XL）建立的方法和装置。 在该方法和装置中，建立终端无线发射/接收单元（T-WTRU）和辅助WTRU（H-WTRU）之间的XL。 T-WTRU和H-WTRU可以被配置为在多个RRC状态和多个RRC子状态中操作。 为了建立XL，可以执行邻居发现，关联信息交换和H-WTRU选择。 也可以执行T-WTRU和H-WTRU的无线电资源控制（RRC）配置。 在该方法和装置中，T-WTRU的覆盖可以在网络和H-WTRU之间或两个H-WTRU之间切换。

公开(公告)号：US20160242048A1

公开(公告)日：2016-08-18

申请号：US15142573

申请日：2016-04-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Benoit Pelletier ,  Paul Marinier ,  Hongsan Sheng ,  Kiran K. Vanganuru ,  Diana Pani

IPC: H04W24/02 ,  H04W72/04 ,  H04J11/00 ,  H04L5/14 ,  H04W28/14 ,  H04L29/12 ,  H04W72/12 ,  H04L5/00

CPC classification number: H04W24/02 ,  H04J11/00 ,  H04L5/005 ,  H04L5/14 ,  H04L61/6022 ,  H04W24/10 ,  H04W28/14 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1215 ,  H04W72/1226 ,  H04W76/14

Abstract: Channel quality may be measured in a device-to-device (D2D) communication network. The D2D communication network may include one or more D2D wireless transmit/receive units (WTRUs), wherein the D2D WTRUs may communicate using a D2D bandwidth. A D2D WTRU may receive a channel measurement resource configuration corresponding to a channel measurement resource. The D2D WTRU may further receive an RS on the channel measurement resource. The D2D WTRU may measure one or more channel state parameters from the channel measurement resource for a part of bandwidth overlapping with a D2D communication bandwidth, when the RS bandwidth is greater than the D2D communication bandwidth. The D2D WTRU may report the channel state parameters to a controlling entity. The controlling entity may configure a D2D frequency allocation between a transmitting device and a receiving device. The D2D frequency allocation may be based on the time averaged measurement.

Abstract translation: 信道质量可以在设备到设备（D2D）通信网络中测量。 D2D通信网络可以包括一个或多个D2D无线发射/接收单元（WTRU），其中D2D WTRU可以使用D2D带宽进行通信。 D2D WTRU可以接收对应于信道测量资源的信道测量资源配置。 D2D WTRU还可以在信道测量资源上接收RS。 当RS带宽大于D2D通信带宽时，D2D WTRU可以测量与D2D通信带宽重叠的一部分带宽的来自信道测量资源的一个或多个信道状态参数。 D2D WTRU可以向控制实体报告信道状态参数。 控制实体可以在发送设备和接收设备之间配置D2D频率分配。 D2D频率分配可以基于时间平均测量。

公开(公告)号：US09345039B2

公开(公告)日：2016-05-17

申请号：US13905885

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Benoit Pelletier ,  Paul Marinier ,  Hongsan Sheng ,  Kiran K. Vanganuru ,  Diana Pani

IPC: H04W72/08 ,  H04W24/10 ,  H04W76/02

CPC classification number: H04W24/02 ,  H04J11/00 ,  H04L5/005 ,  H04L5/14 ,  H04L61/6022 ,  H04W24/10 ,  H04W28/14 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1215 ,  H04W72/1226 ,  H04W76/14

Abstract: Channel quality may be measured in a device-to-device (D2D) communication network. The D2D communication network may include one or more D2D wireless transmit/receive units (WTRUs), wherein the D2D WTRUs may communicate using a D2D bandwidth. A D2D WTRU may receive a channel measurement resource configuration corresponding to a channel measurement resource. The D2D WTRU may further receive an RS on the channel measurement resource. The D2D WTRU may measure one or more channel state parameters from the channel measurement resource for a part of bandwidth overlapping with a D2D communication bandwidth, when the RS bandwidth is greater than the D2D communication bandwidth. The D2D WTRU may report the channel state parameters to a controlling entity. The controlling entity may configure a D2D frequency allocation between a transmitting device and a receiving device. The D2D frequency allocation may be based on the time averaged measurement.

Abstract translation: 信道质量可以在设备到设备（D2D）通信网络中测量。 D2D通信网络可以包括一个或多个D2D无线发射/接收单元（WTRU），其中D2D WTRU可以使用D2D带宽进行通信。 D2D WTRU可以接收对应于信道测量资源的信道测量资源配置。 D2D WTRU还可以在信道测量资源上接收RS。 当RS带宽大于D2D通信带宽时，D2D WTRU可以测量与D2D通信带宽重叠的一部分带宽的来自信道测量资源的一个或多个信道状态参数。 D2D WTRU可以向控制实体报告信道状态参数。 控制实体可以在发送设备和接收设备之间配置D2D频率分配。 D2D频率分配可以基于时间平均测量。

公开(公告)号：US20140349694A1

公开(公告)日：2014-11-27

申请号：US14363457

申请日：2012-12-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Balaji Raghothaman ,  Ravikumar V. Pragada ,  Zhuorong Deng ,  Tao Deng ,  Gregory S. Sternberg ,  Kiran K. Vanganuru ,  Hongsan Sheng ,  Steven Ferrante

IPC: H04W36/08 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04B7/15507 ,  H04W36/00 ,  H04W36/08 ,  H04W40/22 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/10 ,  H04W76/12 ,  H04W76/14 ,  H04W76/25 ,  H04W76/27 ,  H04W88/04

Abstract: A method and apparatus for cross link (XL) establishment are disclosed. In the method and apparatus, a XL between a terminal wireless transmit/receive unit (T-WTRU) and a helper WTRU (H-WTRU) is established. The T-WTRU and the H-WTRU may be configured to operate in a plurality of RRC states and a plurality of RRC substates. To establish the XL, neighbor discovery, association information exchange, and a H-WTRU selection may be performed. Radio resource control (RRC) configuration of the T-WTRU and the H-WTRU may also be performed. In the method and apparatus, coverage for a T-WTRU may be handed over between a network and a H-WTRU or between two H-WTRUs.

Abstract translation: 公开了一种用于交叉（XL）建立的方法和装置。 在该方法和装置中，建立终端无线发射/接收单元（T-WTRU）和辅助WTRU（H-WTRU）之间的XL。 T-WTRU和H-WTRU可以被配置为在多个RRC状态和多个RRC子状态中操作。 为了建立XL，可以执行邻居发现，关联信息交换和H-WTRU选择。 也可以执行T-WTRU和H-WTRU的无线电资源控制（RRC）配置。 在该方法和装置中，T-WTRU的覆盖可以在网络和H-WTRU之间或两个H-WTRU之间切换。

公开(公告)号：US09270495B2

公开(公告)日：2016-02-23

申请号：US14188233

申请日：2014-02-24

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yingxue K. Li ,  Hongsan Sheng ,  Guodong Zhang ,  Philip J. Pietraski

IPC: H04B1/38 ,  H04L25/02 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04L25/0226 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03343 ,  H04L25/03891 ,  H04L65/4076

Abstract: A method and apparatus for using demodulation reference signal (DM-RS) based channel state information (CSI) feedback in Orthogonal Frequency Division Multiplexing-multiple-input multiple-output (OFDM-MIMO) systems is disclosed. The wireless transmit/receive unit (WTRU) receives one or more resource blocks from a base station, wherein the resource blocks (RBs) include demodulating reference signals (DM-RS) and precoder information. The precoder information is sent unicast or broadcasted over a common control channel. The WTRU estimates an effective channel estimate based on the DM-RS, derives an unprecoded channel based on the effective channel and the precoder information, generates CSI feedback based on the unprecoded channel, and transmits the CSI feedback to the base station. Alternatively, the WTRU estimates an effective channel estimate based on the DM-RS, quantizes the effective channel estimate and transmits the CSI feedback to the base station.

Abstract translation: 公开了一种在正交频分复用多输入多输出（OFDM-MIMO）系统中使用基于解调参考信号（DM-RS）的信道状态信息（CSI）反馈的方法和装置。 无线发射/接收单元（WTRU）从基站接收一个或多个资源块，其中资源块（RB）包括解调参考信号（DM-RS）和预编码器信息。 预编码器信息通过公共控制信道单播或广播发送。 WTRU基于DM-RS估计有效信道估计，基于有效信道和预编码器信息导出未重新编码的信道，基于未重新编码的信道生成CSI反馈，并将CSI反馈发送到基站。 或者，WTRU基于DM-RS估计有效信道估计，量化有效信道估计并将CSI反馈发送到基站。

公开(公告)号：US20130322276A1

公开(公告)日：2013-12-05

申请号：US13905885

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Benoit Pelletier ,  Paul Marinier ,  Hongsan Sheng ,  Kiran K. Vanganuru ,  Diana Pani

IPC: H04W72/08

CPC classification number: H04W24/02 ,  H04J11/00 ,  H04L5/005 ,  H04L5/14 ,  H04L61/6022 ,  H04W24/10 ,  H04W28/14 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1215 ,  H04W72/1226 ,  H04W76/14

Abstract: Channel quality may be measured in a device-to-device (D2D) communication network. The D2D communication network may include one or more D2D wireless transmit/receive units (WTRUs), wherein the D2D WTRUs may communicate using a D2D bandwidth. A D2D WTRU may receive a channel measurement resource configuration corresponding to a channel measurement resource. The D2D WTRU may further receive an RS on the channel measurement resource. The D2D WTRU may measure one or more channel state parameters from the channel measurement resource for a part of bandwidth overlapping with a D2D communication bandwidth, when the RS bandwidth is greater than the D2D communication bandwidth. The D2D WTRU may report the channel state parameters to a controlling entity. The controlling entity may configure a D2D frequency allocation between a transmitting device and a receiving device. The D2D frequency allocation may be based on the time averaged measurement.

Abstract translation: 信道质量可以在设备到设备（D2D）通信网络中测量。 D2D通信网络可以包括一个或多个D2D无线发射/接收单元（WTRU），其中D2D WTRU可以使用D2D带宽进行通信。 D2D WTRU可以接收对应于信道测量资源的信道测量资源配置。 D2D WTRU还可以在信道测量资源上接收RS。 当RS带宽大于D2D通信带宽时，D2D WTRU可以测量与D2D通信带宽重叠的一部分带宽的来自信道测量资源的一个或多个信道状态参数。 D2D WTRU可以向控制实体报告信道状态参数。 控制实体可以在发送设备和接收设备之间配置D2D频率分配。 D2D频率分配可以基于时间平均测量。