JPS6455922A - Transmission sd system - Google Patents

Transmission sd system

Info

Publication number
JPS6455922A
JPS6455922A JP62213283A JP21328387A JPS6455922A JP S6455922 A JPS6455922 A JP S6455922A JP 62213283 A JP62213283 A JP 62213283A JP 21328387 A JP21328387 A JP 21328387A JP S6455922 A JPS6455922 A JP S6455922A
Authority
JP
Japan
Prior art keywords
transmission
transmission panel
switch
panel
fading
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.)
Pending
Application number
JP62213283A
Other languages
Japanese (ja)
Inventor
Tadashi Kawada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62213283A priority Critical patent/JPS6455922A/en
Publication of JPS6455922A publication Critical patent/JPS6455922A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

PURPOSE:To contrive the saving of power consumption, by inserting a switch opened in the absence of fading between an IF branching circuit and an SD transmission panel in the transmission SD system provided with a transmission panel receiving a main signal, the SD transmission panel, an EPS control circuit and a detection control circuit. CONSTITUTION:A switch 46 is inserted between an IF branching circuit 10 and the SD transmission panel 16. The switch 46 is closed at the occurrence of fading. The main signal A is divided by the IF branching circuit 10, an IF signal A1 at the main side is subjected to frequency conversion and power amplification by the transmission panel 12 and transmitted from an antenna 14. Moreover, the IF signal A2 of the SD side enters the SD transmission panel 16 through the switch 46, subjected to frequency conversion and power amplification and the result is transmitted from an antenna 18. The switch 46 is opened in the stable state without fading. Since no IF input A2 exists in the SD transmission panel 16, no RF output exists and the transmission is the single transmission by the transmission panel 12 and the antenna 14. Thus, the power consumption is by only one transmission panel.
JP62213283A 1987-08-27 1987-08-27 Transmission sd system Pending JPS6455922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62213283A JPS6455922A (en) 1987-08-27 1987-08-27 Transmission sd system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62213283A JPS6455922A (en) 1987-08-27 1987-08-27 Transmission sd system

Publications (1)

Publication Number Publication Date
JPS6455922A true JPS6455922A (en) 1989-03-02

Family

ID=16636544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62213283A Pending JPS6455922A (en) 1987-08-27 1987-08-27 Transmission sd system

Country Status (1)

Country Link
JP (1) JPS6455922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001054304A1 (en) * 2000-01-18 2001-07-26 Matsushita Electric Industrial Co., Ltd. Radio communication device and radio communication method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001054304A1 (en) * 2000-01-18 2001-07-26 Matsushita Electric Industrial Co., Ltd. Radio communication device and radio communication method
JP2001203614A (en) * 2000-01-18 2001-07-27 Matsushita Electric Ind Co Ltd Base station device, communication terminal, and wireless communication method

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