公开(公告)号：EP2823683A1

公开(公告)日：2015-01-14

申请号：EP13705653.7

申请日：2013-02-01

申请人： Interdigital Patent Holdings, Inc.

发明人： FREDA, Martino M. ,  DIGIROLAMO, Rocco ,  GAUVREAU, Jean-Louis ,  LAUGHLIN, Scott ,  TOUAG, Athmane ,  BELURI, Mihaela C. ,  MURRAY, Joseph M. ,  DAI, Yuying ,  TERRY, Stephen E. ,  MUDGAL, Parul ,  SYED, Kamraan Nasim

IPC分类号： H04W72/12

CPC分类号： H04L5/14 ,  H04L5/0055 ,  H04W16/14 ,  H04W72/005 ,  H04W72/042 ,  H04W72/1215 ,  H04W74/0833

摘要： A method and apparatus for coexistence among wireless transmit/receive units (WTRUs) operating in the same spectrum are disclosed. A WTRU includes a memory, a receive unit, a transmit unit and a control unit. The memory stores coexistence gap patterns. Each of the coexistence gap patterns defines a pattern of transmission periods and silent periods for the WTRU and corresponds to a respective duty cycle. The receive unit receives from a base station information regarding a duty cycle for a wireless cell operated by the base station. The control unit selects one of the coexistence gap patterns based on the received information regarding the duty cycle for the wireless cell and controls the transmit unit to transmit information during the transmission periods and not transmit information during the silent periods of the selected one of the plurality of coexistence gap patterns.

公开(公告)号：EP2553860A1

公开(公告)日：2013-02-06

申请号：EP11716687.6

申请日：2011-04-01

申请人： InterDigital Patent Holdings, Inc.

发明人： KOO, Chang-Soo ,  WANG, Peter S. ,  SHIN, Sung-Hyuk ,  HAIM, John W. ,  DICK, Stephen G. ,  BELURI, Mihaela C. ,  STERN-BERKOWITZ, Janet A,

IPC分类号： H04L5/00

CPC分类号： H04W52/325 ,  H04L5/0048 ,  H04L27/2613

摘要： Methods and apparatus for sounding reference signals (SRS) configuration and transmission. The methods include receiving configuration of wireless transmit/receive unit (WTRU) -specific SRS subframes for transmitting SRS and upon receipt of a trigger, transmitting the SRS for a number of antennas. The SRS transmissions may occur in each subframe of a duration of WTRU-specific SRS subframes that start a number of WTRU-specific SRS subframes after a triggering subframe. For multiple SRS transmissions from multiple antennas, cyclic shift multiplexing and different transmission combs may be used. The cyclic shift for an antenna may be determined from a cyclic shift reference value. The cyclic shift determined for each antenna providing a maximum distance between cyclic shifts for the antennas transmitting SRS in a same WTRU-specific subframe. SRS transmissions from multiple antennas in the WTRU-specific subframe may be done in parallel. Methods for handling collisions between SRS and physical channels are presented.

摘要翻译： 用于探测参考信号（SRS）配置和传输的方法和装置。 该方法包括接收用于发送SRS的无线发射/接收单元（WTRU）特定的SRS子帧的配置，并且在接收到触发时，发射用于多个天线的SRS。 SRS传输可以发生在触发子帧之后开始多个WTRU特定的SRS子帧的WTRU特定的SRS子帧的持续时间的每个子帧中。 对于来自多个天线的多个SRS传输，可以使用循环移位复用和不同的传输梳齿。 可以从循环移位参考值确定天线的循环移位。 为每个天线确定的循环移位提供了在同一WTRU特定子帧中发送SRS的天线的循环移位之间的最大距离。 来自WTRU特定子帧中的多个天线的SRS传输可以并行完成。 介绍了处理SRS和物理通道之间冲突的方法。

公开(公告)号：EP2409421A2

公开(公告)日：2012-01-25

申请号：EP10710721.1

申请日：2010-03-16

申请人： Interdigital Patent Holdings, Inc.

发明人： BELURI, Mihaela C. ,  ZHANG, Guodong ,  PIETRASKI, Philip J. ,  SHIN, Sung-Hyuk ,  BALA, Erdem ,  PAN, Kyle, Jung-Lin ,  KOO, Chang-Soo ,  STERN-BERKOWITZ, Janet A.

IPC分类号： H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04B7/04

CPC分类号： H04W72/0413 ,  H04B7/0417 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0697 ,  H04L1/0026 ,  H04L1/0036 ,  H04L1/0041 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W88/08

摘要： A method and apparatus for signal processing in a wireless transmit receive unit (WTRU), including generating a plurality of data bits and a plurality of control bits, mapping the data bits and control bits to one or more codewords, multiplexing the data bits and control bits, dividing the bits into layers, allocating control bits to each layer based on a channel quality of each codeword and a channel quality of each layer, and channel interleaving each layer for output to one or more antennas.