公开(公告)号：US20140362832A1

公开(公告)日：2014-12-11

申请号：US14374504

申请日：2013-01-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Marian Rudolf ,  Paul Marinier ,  Diana Pani ,  Ghyslain Pelletier ,  Christopher Cave ,  Lakshmi R. Iyer ,  Muhammad U. Fazili

IPC: H04L1/16 ,  H04W72/04

CPC classification number: H04L1/1678 ,  H04L1/1822 ,  H04L1/1887 ,  H04L5/0007 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446

Abstract: Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination.

Abstract translation: 规定了系统和方法以改善UL传输的接收，例如在电力或覆盖范围有限的情况下。 WTRU可以修改过程以增加用于eNB处的接收的可用信号能量和/或在接收机上更有效地使用可用的信号能量来处理UL传输。 用于增加UL链路覆盖的示例方法可以包括：使用更长的TTI修改HARQ定时（例如，更短的HARQ），使用专用PUSCH分配，使用新的PUSCH调制，增强的参考信号设计，用于PUSCH的UL宏分集接收，利用协议减少 技术，确保按顺序分组传递，和/或利用用于覆盖限制/功率限制操作模式的配置。 所提出的方法可以单独地或以任何组合应用。