| 发明名称 |
Method for Coding OFDMA Data without Pilot Symbols |
| 摘要 |
A wireless network includes a set of nodes. Each node includes a transmitter and a receiver. A block of data bits is converted to a block of data symbols. The block of data symbols is partitioning timewise into groups of data symbols. A set of subcarriers is assigned to each group of data symbols, and each group of data symbols is spread to a chip sequence using a coding block of spreading sequences, wherein the spreading sequences are based on types of the groups of data symbols. Then, after the spreading, the chips are transmitted as orthogonal frequency-division multiplexing (OFDM) data symbols on the assigned subcarriers. |
| 申请公布号 |
US2015049731(A1) |
申请公布日期 |
2015.02.19 |
| 申请号 |
US201313968453 |
申请日期 |
2013.08.16 |
| 申请人 |
Mitsubishi Electric Research Laboratories, Inc. |
发明人 |
Duan Chunjie;Orlik Philip |
| 分类号 |
H04B1/69 |
主分类号 |
H04B1/69 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for coding in a wireless network including a set of nodes, wherein each node includes a transmitter and a receiver, comprising:
converting a block of data bits to a block of data symbols, wherein the data symbols do not include any pilot symbols; partitioning, timewise, the block of data symbols into groups of data symbols; assigning a set of subcarriers to each group of data symbols after the Partitioning; spreading each group of data symbols to a chip sequence using a coding block of spreading sequences, wherein the spreading sequences are based on types of data bits in the data symbols in the groups; and transmitting, after the spreading, the chips as orthogonal frequency-division multiplexing (OFDM) data symbols on the assigned subcarriers. |
| 地址 |
Cambridge MA US |
