JPS56140729A - Equalizer for transmission route length - Google Patents
Equalizer for transmission route lengthInfo
- Publication number
- JPS56140729A JPS56140729A JP4308680A JP4308680A JPS56140729A JP S56140729 A JPS56140729 A JP S56140729A JP 4308680 A JP4308680 A JP 4308680A JP 4308680 A JP4308680 A JP 4308680A JP S56140729 A JPS56140729 A JP S56140729A
- Authority
- JP
- Japan
- Prior art keywords
- timing
- signal
- delay
- tdma
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/212—Time-division multiple access [TDMA]
- H04B7/2125—Synchronisation
- H04B7/2126—Synchronisation using a reference station
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Radio Transmission System (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
PURPOSE:To ensure a sufficient effect of diversity, by varying not only the amount of delay of the transmission signal but the timing of transmission and thus exercising control to ensure a constant timing over the data burst that passes through a repeater. CONSTITUTION:The means 244 to give a fixed amount of delay to the signal which is transmitted through an antenna plus the means 245 to give a variable amount of delay to the signal which is transmitted through another antenna are provided to the time-division multiple access (TDMA) communication system. Furthermore the means that detects the timing difference from the TDMA end office to the repeater of the route passing through each antenna is added along with the means 242 that controls the timing of transmission for the TDMA signal. Then the data burst is given to optional one of plural antennas, and the timing of TDMA transmission is varied in case the amount of delay is varied for the signal to be transmitted. As a result, the timing becomes constant for the data burst passing through a repeater.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4308680A JPS56140729A (en) | 1980-04-01 | 1980-04-01 | Equalizer for transmission route length |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4308680A JPS56140729A (en) | 1980-04-01 | 1980-04-01 | Equalizer for transmission route length |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56140729A true JPS56140729A (en) | 1981-11-04 |
JPS6337981B2 JPS6337981B2 (en) | 1988-07-27 |
Family
ID=12654020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4308680A Granted JPS56140729A (en) | 1980-04-01 | 1980-04-01 | Equalizer for transmission route length |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56140729A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA014592B1 (en) * | 2005-09-01 | 2010-12-30 | Шарп Кабусики Кайся | Transmission control method in wireless communication system |
-
1980
- 1980-04-01 JP JP4308680A patent/JPS56140729A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA014592B1 (en) * | 2005-09-01 | 2010-12-30 | Шарп Кабусики Кайся | Transmission control method in wireless communication system |
EA014593B1 (en) * | 2005-09-01 | 2010-12-30 | Шарп Кабусики Кайся | Transmission control method in wireless communication system |
EA014591B1 (en) * | 2005-09-01 | 2010-12-30 | Шарп Кабусики Кайся | Transmission control method in wireless communication system |
US8098763B2 (en) | 2005-09-01 | 2012-01-17 | Sharp Kabushiki Kaisha | Wireless transmission device and wireless transmission method |
US8116403B2 (en) | 2005-09-01 | 2012-02-14 | Sharp Kabushiki Kaisha | Wireless transmission device and wireless transmission method |
US8170133B2 (en) | 2005-09-01 | 2012-05-01 | Sharp Kabushiki Kaisha | Wireless transmission device and wireless transmission method |
US8625717B2 (en) | 2005-09-01 | 2014-01-07 | Huawei Technologies Co., Ltd. | Wireless transmission device and wireless transmission method |
Also Published As
Publication number | Publication date |
---|---|
JPS6337981B2 (en) | 1988-07-27 |
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