发明名称 |
RADIO TERMINAL EQUIPMENT CALL TERMINATION METHOD AND RADIO TERMINAL EQUIPMENT |
摘要 |
PROBLEM TO BE SOLVED: To cope with call termination regardless of the communication area of light waves and the presence/absence of the facing of a light transmitter and a light receiver by making radio terminal equipment report the call termination to a user by making the radio terminal equipment perform pre-ringing different from main ringing when the radio terminal equipment receives call termination signals from a communication network and making the radio terminal equipment perform the main ringing after ending a prescribed processing. SOLUTION: The communication network 3 transmits calling signals from a radio base station 2 by down link radio waves 5a. This radio terminal equipment 1a performs the pre-ringing by the calling signals from the communication network 3 and reports the call termination and the user who recognizes the call termination makes the light emitter 6a face the light receiver 7 during the pre-ringing of the radio terminal equipment 1a. An up link 8a from the radio terminal equipment 1a to the light receiver 7 is established and signals for terminating a call are bidirectionally transmitted and received. When the signals for terminating the call are normally ended, the radio terminal equipment 1a performs the main ringing, the call from a communication terminal 4 is terminated by off-hooking the radio terminal equipment 1a by the user and communication is started. |
申请公布号 |
JP2000049693(A) |
申请公布日期 |
2000.02.18 |
申请号 |
JP19980223769 |
申请日期 |
1998.07.24 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT>;NTT ADVANCED TECHNOLOGY CORP;MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
TAJIMA KIMIHIRO;ITO YOSHIHIRO;KUBOYAMA YOSHIO;NODA YUJI;ODAWARA TAKESHI;MORIOKA MASATOMO |
分类号 |
H04B7/26;H04B10/11;H04B10/112;H04W88/06 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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