公开(公告)号：US12245138B2

公开(公告)日：2025-03-04

申请号：US17414159

申请日：2019-12-17

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Tanbir Haque ,  Hussain E. Elkotby ,  Ravikumar V. Pragada ,  Patrick Cabrol ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  William E. Lawton ,  Muhammad U. Fazili

IPC: H04W52/02 ,  H04W24/08 ,  H04W48/18

Abstract: Approaches for idle mode operations for wireless transmit/receive units (WTRUs) with zero-energy (ZE) receivers are disclosed herein. A WTRU operating in idle mode, may receive using the main transceiver over a Uu interface, an energy harvesting (EH) configuration for use over a ZE air interface. The main transceiver may be turned off, and the ZE receiver as part of a ZE idle mode operation, may detect, over the ZE air interface, and harvest energy from ZE reference signals. The WTRU may calculate an amount of energy harvested from the ZE reference signals over a first time period. The WTRU may calculate a ZE idle mode operation energy consumption over the first time period. On a condition that the ZE idle mode operation energy consumption is greater than the harvested energy, the main transceiver may be turned on and the WTRU may enter a Uu interface idle mode operation.

公开(公告)号：US20250088964A1

公开(公告)日：2025-03-13

申请号：US18958456

申请日：2024-11-25

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hussain E. Elkotby ,  Ravikumar V. Pragada ,  Tanbir Haque ,  Patrick Cabrol ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  William E. Lawton

IPC: H04W52/02

Abstract: A method for use in a Wireless Transmit/Receive Unit (WTRU). The method comprises: receiving, using an active receiver, system information comprising a first system information set, wherein the first system information set is currently valid for the WTRU; storing the system information; deactivating the active receiver and activating a passive receiver; determining whether a difference between a first parameter in the BSSI and a first parameter in the first system information set is greater than a threshold value, wherein on a condition that the difference is greater than the threshold value, reactivating the active receiver to receive a second system information set as a currently valid system information set for the WTRU.

公开(公告)号：US20230292242A1

公开(公告)日：2023-09-14

申请号：US18198044

申请日：2023-05-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hussain Elkotby ,  Ravikumar V. Pragada ,  Tanbir Haque ,  Patrick Cabrol ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  William E. Lawton

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: A method for use in a Wireless Transmit/Receive Unit (WTRU). The method comprises: receiving, using an active receiver, system information comprising a first system information set, wherein the first system information set is currently valid for the WTRU; storing the system information; deactivating the active receiver and activating a passive receiver; determining whether a difference between a first parameter in the BSSI and a first parameter in the first system information set is greater than a threshold value, wherein on a condition that the difference is greater than the threshold value, reactivating the active receiver to receive a second system information set as a currently valid system information set for the WTRU.

公开(公告)号：US11706713B2

公开(公告)日：2023-07-18

申请号：US17414210

申请日：2019-12-17

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hussain E. Elkotby ,  Ravikumar V. Pragada ,  Tanbir Haque ,  Patrick Cabrol ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  William E. Lawton

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: A method for use in a Wireless Transmit/Receive Unit (WTRU). The method comprises: receiving, using an active receiver, system information comprising a first system information set, wherein the first system information set is currently valid for the WTRU; storing the system information; deactivating the active receiver and activating a passive receiver; determining whether a difference between a first parameter in the BSSI and a first parameter in the first system information set is greater than a threshold value, wherein on a condition that the difference is greater than the threshold value, reactivating the active receiver to receive a second system information set as a currently valid system information set for the WTRU.

公开(公告)号：US20160301454A1

公开(公告)日：2016-10-13

申请号：US15094876

申请日：2016-04-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Shahrokh Nayeb Nazar ,  Robert L. Olesen ,  Manasa Raghavan ,  Muhammad U. Fazili ,  William E. Lawton ,  Yingxue K. Li

IPC: H04B7/04 ,  H04B7/06 ,  H04L25/03 ,  H04B7/02 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04B7/022 ,  H04B7/0626 ,  H04L25/0206 ,  H04L25/03343 ,  H04L2025/03426

Abstract: Methods and apparatus for multiple-input multiple-output (MIMO) transmissions are disclosed. A base station may precode wireless transmit/receive unit (WTRU)-specific reference signals and data that are transmitted to a WTRU using a randomly selected precoder. The precoder may be selected based on a predefined precoder selection sequence or by the base station. A different precoder may be applied to different resource blocks (RBs). In addition, a large delay cyclic delay diversity (CDD) or discrete Fourier transform (DFT) spreading may be applied on the WTRU-specific reference signals and the data. For heterogeneous deployed antennas, spatial diversity gain is achieved by dynamically scheduling resources between transmission points. A hopping scheme may be applied across the transmission points as the resources are dynamically partitioned between the transmission points. A different randomly selected precoder may be applied to each RB transmitted from a different transmission point.

Abstract translation: 公开了用于多输入多输出（MIMO）传输的方法和装置。 基站可以使用随机选择的预编码器对无线发射/接收单元（WTRU）特定的参考信号和数据进行预编码，所述参考信号和数据被发送到WTRU。 可以基于预定义的预编码器选择序列或基站来选择预编码器。 不同的预编码器可以应用于不同的资源块（RB）。 此外，可以对WTRU特定的参考信号和数据应用大的延迟循环延迟分集（CDD）或离散傅立叶变换（DFT）扩展。 对于异构部署的天线，通过在传输点之间动态调度资源来实现空间分集增益。 当资源在传输点之间动态分配时，可以跨传输点应用跳频方案。 可以将不同的随机选择的预编码器应用于从不同传输点发送的每个RB。