 Electronic switching system capable of analyzing charge data automatically |
| OF THE PREFERRED EMBODIMENTS Referring to FIG. 2, there is provided a block diagram of an ... |
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| Cellular network having cells which are in a specific circular orientation of sectors |
| It is an object of the present invention to provide an improved cellular communication network ... |
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| Telephone station voice announce device and method |
| The invention provides a telephone station having a voice announced device. The telephone station ... |
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| Switching method and apparatus having subscriber state management function |
| It is an object of the present invention to provide a switching method and a switching system ... |
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| Audio program delivery system |
| The present invention will now be described with reference to an embodiment of a navigable audio ... |
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| Method for mapping call detail data into a database for quick retrieval |
| The present invention overcomes the above and other problems by disclosing a cost-effective and ... |
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| Method for remotely controlling a telephone loop/channel from another telephone loop/channel |
| These shortcomings and other limitations and deficiencies are obviated in accordance with the ... |
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| Communication apparatus and storage medium |
| It is, therefore, an object of the present invention is to provide a communication apparatus ... |
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| Telephone answering device with timer control |
| I claim: 1. A communications device, comprising: a) detecting means for discovering one or more ... |
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Portable radio telephone equipment used for CMTS/MCS in common
| Details |
Inventors: Yamada, Jun; Terashima, Masaki; Ooyama, Kenichi;
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP)
Primary Examiner: Shankar; Vijay
Assistant Examiner:
Attorney, Agent or Firm: Amster, Rothstein & Ebenstein
A portable radio telephone equipment in which both the frequency and equipment can be used in common to CMTS and MCS so that the efficiency for use both for the frequency and equipment can be improved. This equipment monitors the control channel number of CMTS through a radio transmission section and a control section for common use to CMTS and MCS and answers a call from a base station or performs transmission. On the other hand, this equipment selectively receives the control channel number of MCS and answers a call from a base station or performs transmission. Either one of these actions is automatically selected on the basis of the reception level and system ID of the control channel number. At this time, standby-state reception is performed on the judgment as to which one of CMTS and MCS is to be accessed, by automatically detecting the positional condition of the equipment in use. When the equipment is moved to a different area in CMTS or MCS, either one of CMTS and MCS is automatically accessed after position registration. |
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DETAILED DESCRIPTION In the CMTS, the service area is restricted by using a directional antenna.
In this case, the frequency band used for the CMTS can be used for the MCS in a specific place such as the inside of a building located in an area of small electric field intensity outside the service area (beam area) restricted by the directional antenna.
In the present state, however, the frequency band used for the CMTS is not used for the MCS, that is, effective use of frequency is not made.
Furthermore, there has been no precedent for use of frequency in common to the CMTS and the MCS and for use of a portable radio telephone equipment in common.
Accordingly, there arises a disadvantage in that efficiency both in use of radio wave and in use of equipment is poor.
The present invention has as its object the provision of an excellent CMTS/MCS double-use portable radio telephone equipment which can be used for CMTS and MCS in common in the double sense of frequency and equipment to improve efficiency both in use of frequency and in use of equipment to thereby eliminate the aforementioned disadvantage in the prior art.
In addressing the foregoing object, the CMTS/MCS double-use portable radio telephone equipment comprises: CMTS response transmission means for answering a call from a CMTS base station or for performing transmission through monitoring control channels of CMTS; MCS response transmission means for answering a call from an MCS base station or for performing transmission through selectively receiving control channels of MCS; and selection means for automatically selecting either one of the CMTS response transmission means and the MCS response transmission means on the basis of the reception level and identification number of the control channels.
According to the CMTS/MCS double-use portable radio telephone equipment, the positional condition of the equipment in use is automatically detected so that standby-state reception is performed on the judgment as to whether CMTS or MCS is to be accessed
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