JPS56140729A - Equalizer for transmission route length - Google Patents

Equalizer for transmission route length

Info

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
Application number
JP4308680A
Other languages
Japanese (ja)
Other versions
JPS6337981B2 (en
Inventor
Toshitsune Hotsuta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4308680A priority Critical patent/JPS56140729A/en
Publication of JPS56140729A publication Critical patent/JPS56140729A/en
Publication of JPS6337981B2 publication Critical patent/JPS6337981B2/ja
Granted legal-status Critical Current

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

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.
JP4308680A 1980-04-01 1980-04-01 Equalizer for transmission route length Granted JPS56140729A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA014591B1 (en) * 2005-09-01 2010-12-30 Шарп Кабусики Кайся Transmission control method in wireless communication system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA014591B1 (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
EA014592B1 (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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