Wireless communication control apparatus and wireless communication method to reduce inter-channel interference in narrow-band communications
US7826403B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Oct 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
When no messages exist which must be notified to a mobile transmitting/receiving apparatus (102), a carrier signal of non-modulation is outputted in an area of control information of transport data having a frame structure. As a specific example, an FSK modulator (16) causes a carrier signal of non-modulation to be outputted by a transmitting circuit (17) from a line control apparatus (101) in correspondence with the area for control information in which non-modulation data is set by a frame data processing unit (15), while causing a modulated wave signal as four-level FSK modulated to be outputted in the areas other than the non-modulation data area. When non-modulation data is set in the area for control information, function channel identification information in the same frame is set as non-modulation identification data, thereby allowing any unstable operation in the mobile transmitting/receiving apparatus (102) on the receiving side to be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.