GB2415575A

GB2415575A - Digital Cordless Telephone System with capability of remote control among handsets.

Info

Publication number: GB2415575A
Application number: GB0413965A
Authority: GB
Inventors: Shih-Hsiung Weng; Ching-Sian Wong; Chew-Hua Chen
Original assignee: Inventec Multimedia and Telecom Corp
Current assignee: Inventec Multimedia and Telecom Corp
Priority date: 2004-06-22
Filing date: 2004-06-22
Publication date: 2005-12-28
Also published as: GB0413965D0

Abstract

A digital cordless telephone system with capabilities of remote control among handsets. The system is composed of a base station and multiple handsets. Memory is also included in the base station and the handsets, each of which includes a paging control module, motion management module, connection control module, man-machine interface and interworking control module. The interworking module of the base station may further comprise an inquiry module and a transmitting module. A second independent claim describes the method of remote control among handsets, the method including steps of checking status of the receiving side though the base station, delivering request for control to the receiving side through the base station, processing request at the receiving side and returning processed result of query to the requesting side through the base station.

Description

24 1 5575

DIGITAL CORDLESS TELEPHONE SYSTEM WITH

CAPABILITY OF REMOTE CONTROL AMONG HANDSETS

AND METHOD OF COMMUNICATION

s The invention relates to a digital cordless telephone system and communication method thereof, and more particularly to a telephone system having multiple handsets and a remote control method thereof for remote control of the multiple handsets.

Wireless communication technology may be divided into two groups: a to macro-cell high power system and a micro-cell low power system. The macro cell high power system includes GSM, COMA, S-CDMA, and 3G systems, while the micro-cell low power system includes the DECT, PHS and PACS system.

Relatively speaking, the macro-cell high power system has a more complicated architecture and lower voice quality than the micro-cell low power system and Is needs higher a construction cost and a longer construction period. The macro cell high power system usually has no fix access service and the usage fee is higher. Therefore, the service of the macro-cell high power system concentrates on business customers with a higher income.

To meet the communication technology trend, communication companies do have started to develop the micro-cell wireless access technology for efficient usage of the current network and value-adding business promotion. Digital wireless telephones, such as CTO, CT-900, SST, and Low Tier Personal Communication System, such as DECT (Digital Enhanced Cordless Telephone) and PHS (Personal Handy-Phone System) are very successful examples.

as The SST system adopted by the United States is modified from the CT 900 system. The communication distance of the SST system is four times the communication distance (which is 500 kilometers) of the CT-900 system. The CT2 system adopted in United Kingdom, Singapore, and Hong Kong, is a digital GFSK technology modified from the FM analog technology of CT0/1 system (the so frequency of CTO in United States is 46/49MHz, while the frequency in Mainland China is 45/48MHz). Compared with the CT2 system, DECT may provide data ! transmission service, which may be applied to a wireless local loop (VVLL), besides the digital voice service provided by CT2 system. The PHS system adopted in Japan has a lower usage fee, low transmitting power, better voice quality and higher data communication speed than that of the GSM system. The current data communication speed is 64kbps, which is much higher than the 9.6 kbps of the GSM system.

However, a plurality of handsets may be registered in a base station in the above-mentioned wireless telephone system to communicate with each other.

Remote control of different handsets is still impossible in the abovementioned to wireless telephone system. For example, one handset may not page the other handsets, may not share the phone number directory with the other handsets, or may not de-register the other handsets.

In view of the foregoing problems, the main object of the invention is to provide a digital cordless telephone system and method thereof with the capability of remote control among the handsets registered in the same base station.

According to the principle of the invention, the digital cordless telephone system with the capability of remote control among handsets is a system having one base station in which multiple handsets are registered. The provided system ho includes a base station, multiple handsets, a radiating module, a memory, a user 2 interface. The base station and the multiple handsets respectively possess a control module for controlling the operation between the base station and the handsets. The radiating module is connected to the control module to receive and send wireless signals. The memory stores the necessary information and instructions of the control module. The user interface receives the input data from the user under the control of the control module and sends the input data to the handsets. The provided system further optionally includes a connecting module, a motion management module for managing registration, authentication and access right; a connection control module for the connection control of the so paging signals; a man-machine interface for an interface of the lower layer modules; and an interworking control module for establishing and maintaining the interworking signals among the handsets.

According to the principle of the invention, a communication method of a digital cordless telephone with the capability of remote control among handsets for the system having a base station and multiple handsets registered in the base station is also provided. The method involves steps of sending a remote interworking request from a request-side handset to the base station; checking the status of a receiving-side handset through the base station according to the type of the request and related information; delivering the request to the to receiving-side handset from the base station according to the checking result processing the request through the receiving-side handset according to the type of the request and related information; and sending the processed result to the request-side handset through the base station. : Compared with the technical solutions of the prior art, the invention may; be implemented in the current digital cordless system to enable remote control among the handsets registered in the same base station. For example, one | specific handset may be paged through another handset. Addition or deletion of phone number directory in one handset may be executed through another handset. And re-registration of one handset is also possible through another handset.

Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the scope of the invention will become apparent to those skilled in the art from this detailed description.

Preferred embodiments are described below with reference to Figures 1 to 6 of the accompanying drawings, wherein: Fig. 1 illustrates the system architecture of the digital cordless telephone so system with the capability of remote control among handsets according to an embodiment of the invention; Fig. 2 illustrates the internal modules inside the memory of the above embodiment; Fig. 3 illustrates a flow chart of the digital cordless telephone communication method with the capability of remote control among handsets s according in the above embodiment; Fig. 4 is a flow chart of remote paging in the above embodiment; Fig. 5 is a flow chart of remote addition of a phone number directory in the above embodiment; and Fig. 6 is a flow chart of remote de-registration in the above embodiment.

to Fig.1 illustrates the system architecture of the digital cordless telephone system with the capability of remote control among handsets according the invention. A base station 100, and handsets 200, 300, 400 are included in the system. The base station 100 includes a control module 101, a radiating module 102, a memory 103, a user interface 104, and a network connection module 105.

Is The architectures of the handsets 200, 300, 400 are the same. Each of the I handsets has a control module 201, a radiating module 202, a memory 203 and a user interface 204.

In the base station 100, the control module 101 is employed to control the operation of the base station. The radiating module 102 is connected with the No control module 101 and receives and transmits cordless signals. The memory 103 stores the necessary data and instructions of the control module 101. The user interface 104 receives the data input by the user under control of the control module 101. The network connection module 105 connects the control module 101 with the public telephone network.

as In the handsets (ex: handset 200), the control module 201 is employed to control the operation of the handset 200. The radiating module 202 is connected with the control module 201 and receives and transmits cordless signals. The memory 203 stores the necessary data and instructions of the control module 201. The user interface 204 receives the data input from the user and outputs the data under control of the control module 201. l / s

Both the radiating module 102 and radiating module 202 include antennas, antenna switches, a receiving circuit and a transmitting circuit for providing radio communication for the handsets to the base station and the other handsets. The user interface 104 of the base station, for example, may be a keypad, through which the user may input request instructions. The user interface 204 of the handset for example, may include a keypad, a display, a microphone and a speaker. Users may input instructions through the keypad.

The microphone of the user interface 204 is used to capture the user's voice, while the speaker plays voice from another handset. The display shows the to processed results to the user.

Fig. 2 illustrates the internal modules inside the memory according the invention. The memory of the base and the handsets includes a control module 2301, motion management module 2302, connection control module 2303, man- i machine interface module 2304, and an interworking control module 2305.

The paging control module 301 processes signals related to paging operation. The motion management module 302 manages registration, authentication and access right. The connection control module 303 performs the connection control of the paging signals. The man-machine interface 304 is an interface of the lower layer modules. The interworking control module 305 go establishes and maintains the interworking signals among the handsets. In the base station, the interworking control module 305 further includes an inquiry module and a transmitting module. The inquiry module is used for inquiry of the status of the handset requested by the interworking signals. The transmitting module sorts the interworking requests and transmits them to related handsets.

If verification of the request signal is necessary in the base station, a verifying module is also included for verifying the types of the interworking request signals.

In the handsets, the interworking control modules further comprises a request generating module for producing an interworking request signal, and an executing module for processing the interworking requesting signal. If so verification of the request signal is necessary in the handsets, a verifying module is also included for verifying the types of the interworking request signals.

Fig. 3 illustrates the flow chart of the digital cordless telephone communication method with the capability of remote control among handsets according to the invention. First, the request-side handset sends a remote interworkng request to the base station (step 301). The request may be generated by the request generating module in the memory according to the user input. Then the base station checks the status of a receiving- side handset through the base station according to the type of the request and related information (step 302). The remote interworking request comprises a paging request, a phone number directory request and a de-registration request. The to related information comprises the number of the receiving-side handset, and the name and phone umber of the liaison in the phone number directory. The base station transmits the request to the receiving-side handset according to the checking result (step 303). The receiving-side handset processes the requests:' according to the type of the request and related information (step 304). Then the Is request-side handset sends the processed result through the base station (step | 305).

Before the step 302 of checking the status of a receiving-side handset, a step of verifying the type of the request and the related information is also involved. If the request is ineffective, the method finishes the remote control and no sends an error message to the request-side handset. I Similarly, before the step of processing the request through the receiving side handset, a step of verifying the type of the request and the related information is further involved. If the request is ineffective, the method finishes the remote control and sends an error message to the request-side handset through the base station.

Fig. 4 is the flow chart of remote paging according the invention. First, the request-side handset sends a paging request (step 401), which includes the number of the handset to be paged and paging duration. Then the base station receives the paging request (step 402), and checks the status of the requested so handset (step 403). If the requested handset is not turned on, a failure message is sent back to the request-side handset. The base station then sorts the requests and sends to the requested handset that is fumed on (step 404). The request handset then receives the paging request and sends paging sounds (step 405). The requested handset sends an acknowledge message to the base station (step 406). Then the base station sends the acknowledge message to the request-side handset (step 407). At this moment, timing starts according to the determined duration time (step 408). When time is up, paging sounds stop (step 409).

Fig. 5 is the flow chart of remote addition of a phone number directory according the invention. The request-side handset sends a request to add a to phone number (step 501) The request also includes the handset number selected by the user, name and phone number, etc. Then the base station receives the request (step 502) and checks the status of the requested handset (step 503). If the requested handset is fumed on, a failure message is sent back to the request-side handset. The base station then sorts the requests and sends Is to the requested handset that is turned on (step 504). The request handset then I receives the adding request (step 505). The requested handset adds a record into its own phone number directory according to the request (step 506). The requested handset sends an acknowledge message to the base station (step 507). Then the base station sends the acknowledge message to the request o side handset (step 508).

Fig. 6 is the flow chart of a remoter de-registration in accordance with the invention. First, the request-side handset sends a de-registration request (step 601), which includes the phone number of the to-be-de-registered handset selected by the user. The base station then receives de-registration request as (step 602), and checks the status of the requested handset (step 603). If the requested handset is not turned on, a failure message is sent back to the request-side handset. The base station then sorts the requests and sends to the requested handset that is turned on (step 604). The requested handset receives the de-registration request and sends an acknowledge message to the base so station, meanwhile the information of the de-registered handset is deleted (step 605). The base station receives the acknowledge message and deletes the information of the requested handset (step 606). At last, the base station sends an acknowledge message to the request-side handset (step 607).

While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art.

Claims

CLAIMS: 1. A digital cordless telephone system with the capability of

remote control among handsets for the system having a base station and multiple handsets s registered in the base station, the system comprising: a base station comprising: a control module for controlling the operation of the base station; a radiating module connected with the control module for receiving and sending cordless signals; to a memory for storing the necessary data and instructions of the control module; a user interface for receiving the data input by the user under the control of the control module; and a network connection module for connecting the control module to the public telephone network; and | multiple handsets, each handset comprising: a control module for controlling the operation of the handset; a radiating module connected with the control module for receiving and sending cordless signals; so a memory for storing the necessary data and instructions of the control module; a user interface for receiving the data input by the user and output data under the control of the control module; and a network connection module for connecting the control module to the public telephone network; wherein the memory includes: i a paging control module for processing signals related with paging; a motion management module for managing registration, authentication and access right; i so a connection control module for the connection control of the paging signals; a man-machine interface for an interface of the lower layer modules; and an interworking control module for establishing and maintaining the interworking signals among the handsets.

s
2. The system of claim 1, wherein the radiating module comprises an antenna, an antenna switch, a receiving circuit and a transmitting circuit for providing radio communication for the handsets to the base station and the other handsets.
3. The system of claim 1 or claim 2, wherein the user interface of the base station comprises a keypad.
4. The system of any preceding claim, wherein the user interfaces of the handsets comprise a keypad, a display region, a microphone and a speaker.
5. The system of any preceding claim, wherein the interworking module of the base station comprises: an inquiry module for inquiry of the status of the handset requested by the interworking signals; and go a transmitting module for sorting the interworking requests and transmitting them to the handsets.
6. The system of claim 5, wherein the interworking control module further comprises a verifying module for verifying the types of the interworking request as signals.
7. The system of any preceding claim, wherein the interworking control module of the handsets comprises: a request generating module for producing a interworking request signal; and a executing module for processing the interworking requesting signal.
8. The system of claim 7, wherein the interworking control module further comprises a verifying module of verifying the types of the interworking request signals.
9. A communication method for a digital cordless telephone with the capability of remote control among handsets for the system having a base station and multiple handsets registered in the base station; the method comprising steps of: sending a remote interworking request from a requestside handset to the base station; checking the status of a receiving sideside handset through the base station according to the type of the request and related information; , delivering the request to the receiving-side handset from the base station according to the checking result; processing the request through the receiving-side handset according to the type of the request and related information; and sending the processed result to the request-side handset through the base station.
10. The method of claim 9, wherein the remote interworking request is generated by a request generating module according to the user input through the handset.
11. The method of claim 9 or claim 10, wherein the remote interworkng request comprises a paging request, a phone number directory request and a de registration request.
12. The method of any of claims 9 to 11, wherein the related information so comprises the number of the receiving-side handset, and the name and phone number of the liaison in the phone number directory.
13. The method of any of claims 9 to 12, wherein before the step of checking the status of a receiving-side handset further comprises a step of verifying the type of the request and the related information, wherein if the request is ineffective, the method finishes the remote control and sends an error message to the request-side handset.
14. The method of any of claims 9 to 13, wherein before the step of processing the request through the receiving-side handset further comprises a step of verifying the type of the request and the related information, wherein if the to request is ineffective, the method finishes the remote control and sends a error message to the request-side handset through the base station.
15. A digital cordless telephone system substantially as described hereinabove with reference to Figs. 1 to 4 and optionally also Figs. 5 and 6 of the accompanying drawings.
16. A method of communication substantially as described hereinabove with reference to Figs. 1 to 3 and optionally as modified in accordance with Figs. 4, 5 and 6 of the accompanying drawings.