公开(公告)号：WO2008036772A3

公开(公告)日：2008-06-12

申请号：PCT/US2007078944

申请日：2007-09-19

Applicant: QUALCOMM INC ,  LI JUNYI ,  DAS ARNAB ,  LAROIA RAJIV

Inventor： LI JUNYI ,  DAS ARNAB ,  LAROIA RAJIV

IPC: H04L5/02 ,  H04L27/26

CPC classification number: H04L5/1469 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656

Abstract: Systems and methodologies are described that facilitate generating and/or analyzing downlink transmission units in OFDM TDD environments. Strip OFDM symbols may be selectively inserted within downlink transmission units; for example, the position of strip OFDM symbols may vary from cell to cell. Further, the position may be a function of a characteristic of a cell (e.g., cell identifier) and/or an expected drift. Moreover, a strip OFDM symbol may be interjected at a location in a downlink transmission unit so as to mitigate alignment with disparate strip OFDM symbols in downlink transmission units associated with differing cells.

Abstract translation: 描述了便于在OFDM TDD环境中生成和/或分析下行链路传输单元的系统和方法。 条带OFDM符号可以选择性地插入在下行链路传输单元内; 例如，带状OFDM符号的位置可能因小区而异。 此外，该位置可以是小区特性（例如小区标识符）和/或预期漂移的函数。 此外，带状OFDM符号可以在下行链路传输单元中的位置处被插入，以便减轻与不同小区相关联的下行链路传输单元中的不同带状OFDM符号的对齐。