Wireless transmission device, wireless transmission system, and method for controlling wireless transmission device
US9571226B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2012 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/143
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In order to improve efficiency of data transmission in a wireless transmission band under a condition in which both adaptive modulation scheme and FDD scheme are employed, and fixed rate signals and a variable rate signal are multiplex-transmitted, one wireless transmission device (2_1) multiplexes a plurality of fixed rate signals (FS1_1 to n) and a variable rate signal (VS2) to generate a frame (FR1), and sends the frame (FR1) to another wireless transmission device (2_2) through a wireless transmission path (CH1). At this time, the device (2_1) includes, in the frame (FR1), information (MN) relating to a number of multiplexed fixed rate signals. The device (2_2) multiplexes a plurality of fixed rate signals (FS3_1 to n) and a variable rate signal (VS3) to generate a frame (FR2), and sends the frame (FR2) to the device (2_1) through a wireless transmission path (CH2) having a different frequency. At this time, the device (2_2) determines a number of multiplexed fixed rate signals in the frame (FR2) according to the information (MN).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.