Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system
US9774435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0016
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method apparatus and system for efficiently transmitting and receiving channels are provided in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A multiplexing scheme differs according to a channel when a transmitter transmits a packet data channel, a common control channel and a control channel designated for a particular user. Uncoded 1-bit information is broadly dispersed in frequency and time domains using multiplexing technology for maximizing diversity in a channel for transmitting information of at least one bit to a particular user like an acknowledgement (ACK) channel. The transmitter converts a sequence obtained by multiplexing multiple bits to be transmitted to a plurality of users to parallel signals, and broadly disperses the parallel signals in the time and frequency domains. When the uncoded 1-bit information is transmitted, reception reliability is improved because channel coding and transmission are efficiently performed using a small amount of resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.