CN1037479C - Dual system cellular cordless radiotelephone apparatus - Google Patents
Dual system cellular cordless radiotelephone apparatus Download PDFInfo
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- CN1037479C CN1037479C CN93100248A CN93100248A CN1037479C CN 1037479 C CN1037479 C CN 1037479C CN 93100248 A CN93100248 A CN 93100248A CN 93100248 A CN93100248 A CN 93100248A CN 1037479 C CN1037479 C CN 1037479C
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- pcc101
- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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- 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
A cellular cordless telephone has a first mode of operation for making and receiving cellular telephone calls via a cellular telephone system and a second mode of operation for making and receiving cordless telephone calls on a cellular radio channel used by a cordless base station. The cellular cordless telephone automatically selects either the first mode or the second mode and receives from the cellular system when operating in both the first mode and the second mode. The cellular cordless telephone transmits in the cellular system with an output power having a predetermined set of power magnitude steps when operating in the first mode and transmits on a cellular radio channel to the cordless base station with a power level selected to be no greater than the lowest step of power magnitude of said predetermined set of power when operating in the second mode.
Description
The present invention relates generally to portable radiotelephone, specifically, relates to a kind of improved portable radiotelephone that all can receive calling in wireless and cellular telephone system.
Cordless telephone system generally includes a portable wireless telephone and a cordless telephone base station that links to each other with the telephone system (TELCO) of telephone operator by land telephone communication circuit.This assisted cordless base station has the land telephone number of an appointment, and the user can be in the assisted cordless base station communication range that limits, in being in, by its portable wireless telephone to sending and receive phone with base station from then on.Yet because its operating distance is limited, this kind portable wireless telephone can only provide the user the quite radiotelephone communication scope of limitation.
By the cellular radio telephone system can to the user be provided at that cordless telephone system reaches and scope outside radiotelephone communication.Cellular telephone system generally includes some cellular subscriber units (portable or portable) and some are connected to the cellular base station of TELCO system through one or more cellular switching network.Each cellular subscriber unit has the telephone number of the cellular communication system of an appointment, make the user can with this telephone number cellular base station can reach and vast zone in (for example in whole big city) receive and dispatch phone.Yet, use the cost of cellular telephone business more much higher than cordless telephone service.
For through be everlasting wireless and cellular telephone system between change position (promptly hang over cordless system sometimes, hang over cellular communication system sometimes) the user have a problem.One deliver to the user not the incoming call meeting of the system at place lost.In prior art, in order to address this problem, road communicating line and cellular telephone company provide and have been called " nothing is answered transmission " or " call-delivery " or " three-way calling " these functions.Do not have to answer to transmit and make user's programing system like this: when called subscriber phone and access failure, or not answer, or when having exceeded the base station scope, system is sent to cordless telephone system to a calling from cellular telephone system, and vice versa.So the user can receive the incoming call of getting to wireless or cellular telephone system.
Above-mentioned nothing is answered transmitting function and is had some problems.Artificial programing system when the user must or cancel " nothing is answered transmission " function in each needs enforcement.And artificial programing system is a kind of rather thing of trouble to the user, and the user is in case mediation, will cause to lose or transmit incoming call inadequately.And the user also need purchase and move the equal radiotelephone installation of novelty applicatory of wireless and cellular telephone system, and this just makes user's expense increase and brings inconvenience.
In addition, a portable cordless telephone system that sends and receive phone in a cellular and cordless telephone system should have the ability to select and will move in which kind of system.System selects and carry out on the basis of the parameter favourable to the user automatically.The user also should be able to put dried the ignoring of automatic selection and a system is chosen in the artificially.
So, need and a kind ofly can allow the user all can receive calling and do not make the user cause inconvenient and increase the radio telephone system of expense by wireless and cellular telephone system.
A honeycomb-like rope-less telephone has a honeycomb-like radio channel by a cellular telephone system to send and receive first working method and second working method of sending and receive wireless telephone call by the honeycomb-like radio channel that is used by an assisted cordless base station that cellular telephone is called out.When working with above-mentioned dual mode, this honeycomb-like rope-less telephone is automatically selected between above-mentioned first and second working methods and is received from above-mentioned honeycomb-like radio channel.When first working method is worked, honeycomb-like rope-less telephone sends on described honeycomb-like radio channel, its transmitting power has one group of predetermined power level grade, and when when second working method is worked, it sends on above-mentioned honeycomb-like radio channel, and its transmitted power level is then selected to such an extent that be not more than lowest power level grade in above-mentioned one group of predetermined grade.
Fig. 1 is the block diagram of the active configuration of a portable radiotelephone.Several systems among the figure comprise that a cellular communication system and a cordless system can be used by this portable radiotelephone.
Fig. 2 is used for illustrating cordless telephone system, the signal map of the typical area of coverage configuration of microcellulor shape and cellular communication system.
Fig. 3 is a block diagram that can adopt cordless telephone base station of the present invention.
Fig. 4 is the block diagram that can adopt portable radiotelephone of the present invention.
The process chart that the portable radiotelephone of Fig. 4 adopted when Fig. 5-1 and 5-2 called out for not being in when portable phone.
Fig. 6-the 1st, the process chart that the assisted cordless base station of Fig. 3 uses when portable radiotelephone is in calling.
Fig. 6-the 2nd, the continuation of the flow chart of Fig. 6-1.
Fig. 7-1 and 7-2 are the process charts that the portable radiotelephone of Fig. 4 when portable radiotelephone is just called out adopts.
Fig. 8 is a message flow form that can send from the assisted cordless base station of Fig. 3.
Fig. 9 is that an instruction message and the channel that can comprise a part of Fig. 8 message flow form change message.
Figure 10 is the timing diagram of a system scan process in the portable radiotelephone that can be used on Fig. 4.
Figure 11-1,11-2 and 11-3 are the flow chart of adoptable system priority selection course in the portable radiotelephone of Fig. 4 together.
Fig. 1 shows total block diagram of application of the present invention.Portable cellular wireless (PCC) radio telephone 101 has the ability that communicates with traditional cellular radio telephone system 103, system 103 has a plurality of cellular base stations 105,107, these base stations are positioned at the geographical zone separately of going up, and cover a vast region together but dispose penta.Cellular base station all links to each other with a control terminal 109,109 pairs of above-mentioned a plurality of cellular base stations of terminal (cellular the moving and the off-hook of portable equipment that comprises the user) coordinate and provide call out exchange and with the interconnection of public switch telephone network (this is not referred to as " TELCO ") 111.
PCC101 also has the ability that communicates with microcellulor shape base station 113, and base station 113 is one to have lower-wattage and limited capability but can give such as the shopping centre, and region far away such as airport provides the mesh of the cellular adjacency of public wireless phone service.Microcellulor shape base station 113 links to each other with ETLCO111 road communicating line telephone system, can send to TELCO so that call out.
PCC101 also has by assisted cordless base station 115 and radiotelephone call and communicates and send the ability of radiotelephone call, thereby provides the interconnection of special telephone line and TELCO111 for PCD101 user.As previously mentioned, assisted cordless base station 115 provides the narrow wireless phone service that is referred to as the cordless telephone service traditionally with PCC101.This service has become generally, and it uses the channel in some HF (high frequency) radio frequency band usually.
Wireless telephone user is desired is a kind ofly to obtain wireless phone service and the required expense of this service is minimum in U.S.'s whilst on tour total energy.They also wish can obtain this kind service from an as far as possible little and cheap pocket telephone simultaneously.Above-mentioned PCC101 just for this purpose and unique design.And assisted cordless base station 115 designs again novelly, and it makes the user who has PCC101 in the zone that radio covered of assisted cordless base station 115 carry out interconnect call with telephone line in its family.
That Fig. 2 shows is wireless, the Typical Disposition of the area of coverage of microcellulor shape and cellular communication system.Cordless system area of coverage area minimum, and be positioned within the microcellulor shape system.The area of coverage area of microcellulor shape system is placed in the middle, and is positioned within the cellular communication system.The overlay area of each system can be depending on the number of the base station in (but being not limited to) each system, the power level that the antenna height of each base station and each system adopt.Portable radiotelephone phone user can move between each area of coverage.According to (but being not limited to) portable radiotelephone phone position, system accessibility and user's hobby, portable radiotelephone can be in many transition between systems.
The overlay area of system is not limited to customized configuration as shown in Figure 2.Can be irrelevant with another area of coverage or can part overlap mutually with one or more other overlay area in overlay area.
Assisted cordless base station 115, from conceptive, be an inferior microcellulor shape system that single signaling channel is provided, this channel is launched the departure data-message in the mode that is similar to traditional cellular departure signaling channel, and from receiving service request such as the such far-end unit of PCC101.Suitable service request can go through and specify a speech channel (being made by the control channel), and this speech channel can be same channel, or PCC101 be instructed to be tuned to the channel of second radio frequency, call out.
Fig. 3 shows the basic embodiment of assisted cordless base station.Traditional transmitter 301 links to each other with shared antenna 305 by a wireless shared device 307 with traditional receiver 303, and above-mentioned transmitter and receiver is applicable to 869 to 894MHz and 824 respectively to 849MHz, and they have been used to traditional cellular communication system business.The power output of transmitter 301 is limited to approximate 6 milliwatts, so that the interference minimum of and other telepoint professional to other.The frequency of channel is selected by being implemented by the frequency synthesizer 309 of logical block 311 controls.A microprocessor 313 is arranged in logical block 311, this microprocessor 313, can for example be the 68HC11 that motorola inc sells, or similar microprocessor, it links to each other with traditional storage arrangement (315) of the operation sequence that is used for storing little processing, base souvenir (BID) and client's identity characteristic and some other features.Utilize signaling interface hardware 317 with being deciphered with armed data of being received with encode and make they and receiver 303, transmitter 301 links to each other with microprocessor 313.Control hardware 319 transmits and carries out the instruction of this microprocessor.Then finish by TELCO interface 321 usually with the interface of subscriber household road communicating line telephone line.Provide power supply (power supply 323 among the figure) by traditional AC network or reserve battery.
Fig. 4 shows a portable wireless transceiver machine PCC101 with the block diagram form.Portable wireless receiver 401 can receive 869 and 894MHz between frequency range on signal, transmitter 403 can be launched with low-power (being approximately 6 milliwatts in a preferred embodiment) on 824 to 849MHz frequency, and they all link to each other with the antenna 405 of PCC101 by wireless shared device 407.Microprocessor 409 is determined concrete rf channel that transmitters 403 and receiver 401 will use and is sent to frequency synthesizer 441 by interface circuit 413.The data-signal decoding that receiver 410 receives is after interface circuit 413 is sent to microprocessor 409, and the data-signal that microprocessor 409 generation transmitters 403 will be launched is also formatd before it is launched.Interface circuit 413 opens or closes transmitter 403 and receiver 401.Interface circuit 413 is also controlled and is used for indicating PCC10 to the user current what receiving is the light-emitting diode 415 and 417 of which system.Audio frequency processing circuit 419 is used for controlling audio user, microphone output and loud speaker output.
In a preferred embodiment, microprocessor 409 is the 68HC11 microprocessor that can be provided by motorola inc, carries out the necessary processing function under the control of its program in being stored in conventional ROM421.The property feature of PCC101 is stored among the EEPROM423 (also can be stored in EEPROM in the microprocessor machine), property feature be included as the required number assignment (NAM) of conventional cellular communication system work and with the user's oneself wireless base required base souvenir (BID) of working.
The power that the transmitter 403 of PCC101 can be used in the required whole output power range of working in the legacy cellular shape system is launched.The scope of this power output is made up of high-output power level to the six groups of power outputs of the low output power stage of about 6 milliwatts from about 600 milliwatts.When PCC101 was in the cellular communication system mode, these six groups of power output grades were activated.
According to the preferred embodiments of the present invention, this PCC101 and wireless and cellular telephone system 103 homogeneous phase compatibilities.This still works in cellular telephone system and all only uses the cellular telephone frequency to realize by making PCC101 work in cordless telephone system.
The advantage that this wireless telephonic user of setting up yearns for.At first, PCC101 be that wireless base station 115 matches and can automatically incoming call be delivered to the telephone system at PCC101 place and the user be there is no inconvenience.Secondly, if when PCC101 changes its place system between wireless and cellular telephone system, then it can combine with assisted cordless base station 115, automatically transmits calling.
Fig. 5-1 and 5-2 are the process chart that the PCC101 of Fig. 4 adopts.Fig. 6-1 is the process chart that the assisted cordless base station 115 of Fig. 3 adopts.In one embodiment of the invention, PCC101 and assisted cordless base station 115 are as Fig. 5-1, the described such cooperation of the flow chart of 5-2 and 6-1 ground work is delivered to cordless telephone system or cellular telephone system 103 to an incoming call with the place system according to PCC101.
Shown in Fig. 5-1, PCC101 can be in Idle state 501 frames of cellular telephone system 103, also can be in Idle state 503 frames of cordless telephone system.No matter at which Idle state, PCC101 is in the state that receives incoming call.For the purpose of discussing, and hypothesis PCC101 is Idle state 501 frames that are in cellular telephone system 103.PCC101 returns 501 frames in frame 505 decision and remains on the Idle state of cellular telephone system or proceed to 507 frames and forward cordless telephone system to by scanning admissible assisted cordless base station 115.If in the scanning process, as judging, find an admissible assisted cordless base station 115 at frame 509, then at 511 frames, PCC101 send and sends out a registration message (PCC carries out application for registration to assisted cordless base station) to assisted cordless base station 115.Otherwise PCC101 returns Idle state 501 frames of cell phone system.
In Fig. 6-1, assisted cordless base station 115 is in Idle state usually shown in frame 601 waits for.In case receive registration message at 603 frames, determine whether the PCC101 receivability at frame 607 assisted cordless base stations 115.At frame 603, if do not receive registration message, then assisted cordless base station 115 turns back to Idle state 601 frames.If PCC101 is admissible, then send one to ICC101 and admit message, and its road communicating line telephone number is sent to PCC101 at frame 611 at frame 605 assisted cordless base stations 115, turn back to Idle state 601 frames then.If do not admitted by assisted cordless base station at 607 frame PCC101, then send a refuse information (the PCC non-registration message of assisted cordless base station) and give PCC101 at frame 609 assisted cordless base stations 115, return Idle state frame 601 then.
Among Fig. 5-1, at frame 513, PCC101 determines whether to receive (PCC registration) message of being admitted.If receive the message of being admitted, then receive the road communicating line telephone number of assisted cordless base station 115 at frame 515PCC101.Otherwise PCC101 turns back to its Idle state 501 frames in cellular telephone system 103.So, because being apprised of the PCC101 decision, assisted cordless base station 115 is transformed into cordless system, therefore its road communicating line telephone number is issued PCC101 as answer.
At 517 frames, PCC101 determines that cellular (system) telephone number of user still is that the land telephone number has the transmission of calling priority.Call out to transmit priority and be meant the preference of user to system's (cellular or road communicating line), i.e. that system that incoming call at first is sent to the user to be had a preference for is not if the user is in this system then be sent to second system again.Because cellular and land telephone number user can utilize, thereby only providing a telephone number, to be used for to customer call to the opposing party can be easily.So the opposing party can use a single telephone number and the user's in cellular or cordless telephone system PCC101 to link up.
Transmit priority if the cellular telephone number has to call out, then at frame 519, PCC101 forwards the cellular telephone number land (order wire) telephone number of unit, wireless base to and waits for the Idle state of cordless telephone system at frame 503.So when PCC101 was arranged in cordless telephone system, an incoming call that is sent to user's cellular telephone number was automatically brought to the land telephone number of assisted cordless base station 115.
If having to call out, user's land telephone number transmits priority, then PCC101 delivers message at 521 frames with a calling and sends to the assisted cordless base station unit, indicate it to forward user's land telephone number (giving assisted cordless base station) the land telephone number of the unit in wireless base to, wait for the Idle state of cordless telephone system at frame 503 then.In Fig. 6-1, at 613 frames, if receiving a calling, assisted cordless base station 115 delivers message, then at frame 615, assisted cordless base station 115 is carried out user's land telephone number is delivered to calling out of the land in wireless base telephone number far awayly, turns back to its Idle state frame 601 then.So when PCC101 was positioned at cordless system, an incoming call of passing to user's land telephone number was automatically forwarded to the land telephone number of assisted cordless base station 115.If PCC101 is closed, then the user still can receive incoming call by any phone with the telephone number associated at certain station.
In Fig. 5-2, PCC101 determines to turn back to 503 frames and keeps its Idle state in cordless telephone system in 523 frames, still forwards cellular communication system 103 to by advancing to 525 frames.In frame 525, PCC101 determines that the cellular telephone number of PCC101 still is that user's land telephone number has to call out and transmits priority.Transmit priority if cell phone number has to call out, then send a cancellation calling at frame 527PCC101 and deliver message to cellular communication system, turn back to frame 501 then, the Idle state in cellular communication system is waited for.So the incoming call direct calling that is delivered to user's cellular telephone number is positioned at the PCC101 of cellular telephone system 103.
Transmit priority if user's land telephone number has to call out, then PCC101 delivers message to 115 callings of assisted cordless base station when 531 frames, user's land telephone number is forwarded to the cellular telephone number of PCC101.If PCC101 can not set up with assisted cordless base station 115 and communicate by letter, then PCC101 can call out and carries out this calling and deliver by making a cellular telephone.So an incoming call that is sent to user's land telephone number is transferred on the cellular telephone number of the PCC101 that is positioned at cellular telephone system 103.
Fig. 7-1 and 7-2 are the flow chart of two the alternative processing that PCC101 adopted among Fig. 4, and Fig. 6-the 2nd, the continuation of Fig. 6-1 flow chart is used for the processing that assisted cordless base station adopted of Fig. 3.As at Fig. 7-1, described respectively such among 7-2 and Fig. 6-2, in an embodiment who the confession selects for use of the present invention, in the time of outside the position of PCC101 moves to the cordless system scope and in the overlay area of cellular telephone system 103, PCC101 and assisted cordless base station 115 cooperations can automatically transmit between cordless telephone system and cellular telephone system 103 and call out (being relayed call).Automatically the advantage of relayed call operation is concerning the user: when PCC101 was in calling, the switching of PCC101 between wireless and cellular telephone system was transparent operation, and another advantage of automatic transit working is the lower working cost of cordless telephone service.When PCC101 was positioned at the assisted cordless base station 115 that can be admitted, PCC101 was transformed into cordless telephone system from cellular telephone system 103.
Shown in Fig. 7-1, during calling out, the cellular telephone system 103 that PCC101 both can be in 701 frames also can be in the calling of cordless telephone system of 703 frames.Be discussion, suppose that PCC101 is in the calling of cellular telephone system 103 of frame 701.In 705 frame PCC101 decision is to turn back to the calling attitude that 701 frames keep its cellular telephone system, still enters 707 frames, changes cordless telephone system by scanning an admissible assisted cordless base station.If scan an admissible assisted cordless base station, then send a registration message and give assisted cordless base station 115 at 711 frame PCC101 at 709 frames.Otherwise PCC101 turns back to the call state of the cordless telephone system of 701 frames.
At 601 frames of Fig. 6-1, assisted cordless base station 115 is in Idle state usually to be waited for.At 603 frames,, determine whether that at 607 frame assisted cordless base stations 115 PCC101 is admissible in case receive registration message.If do not receive registration message at 603 frames, then assisted cordless base station 115 is got back to its Idle state 601 frames.If PCC101 is admissible, then sends one and admit message to give PCC101, and send out its a land telephone number to PCC101 at 611 frames at 605 frame assisted cordless base stations 115.As at 607 frames, PCC101 is not admitted by assisted cordless base station 115, and then at 609 frames, 115 one of assisted cordless base station is refused to receive message and given PCC101, returns its Idle state 601 frames then.
See Fig. 7-1, at 713 frames, PCC101 determines whether to receive and is admitted message.Admitted message if receive, then received the land telephone number of assisted cordless base station 115 at 715 frame PCC101.Otherwise PCC101 turns back to its calling attitude 701 frames in cell phone system 103.Like this, because assisted cordless base station 115 has been known the decision to the cordless telephone system conversion of PCC101, therefore its land telephone number is sent to PCC101 as answer.
According to a preferred embodiment of the invention, at 716 frames, the calling of carrying out between PCC101 that in cellular telephone system 103, works and calling party, rely on produce by cellular telephone system 103 one at PCC101, three-way calling between the land telephone number of the other side and assisted cordless base station is transferred to cordless telephone system from cellular telephone system 103.
In Fig. 6-2, assisted cordless base station 115 receives the request that is transferred to cordless system from cellular communication system at 617 frames, and the land branch road of answering three-way calling at 619 frames is to set up communicating by letter of the other side and 115 of assisted cordless base station base stations.At frame 621, PCC101 and calling party are carried out wireless telephone call.In Fig. 7-1, at 718 frames, the PCC101 that is operated in cellular telephone 103 finishes the cellular branch road of three-way calling, ends the cellular communication system communication between PCC101 and the other side.So, when PCC101 when cellular telephone system 103 moves on to cordless telephone system, the calling of a well afoot is transferred to cordless telephone system by cellular telephone system 103.
In Fig. 7-2, PCC101 is to return frame 703 to keep its calling attitude in cordless telephone system in the decision of 723 frames, still enter 725 frames and forward cellular communication system 103 to, at frame 725, the PCC101 that is operated in the cordless telephone system asks cordless telephone base station 115 by being created in PCC101, and the three-way calling between the other side and user's cellular telephone number is carried out the switching from wireless to cellular telephone system 103.
In Fig. 6-2, determine whether to receive that in frame 623 assisted cordless base station unit the requirement of PCC101 forwards the request of cellular telephone system 103 to from cordless telephone system.If determine to have received this request, then carry out at the PCC101 that works in cellular communication system 103 three-way calling between the land telephone number of the other side and assisted cordless base station 115 at 625 frame assisted cordless base stations at frame 623.Otherwise assisted cordless base station 115 turns back to 625 frames, remains on the conversation state of cordless telephone system.In Fig. 7-2, PCC101 answers three-way calling at 727 frames cellular this road is to be based upon communicating by letter between the PCC101 that works in cellular telephone system 103 and the other side.So at 701 frames, PCC101 is in the cellular telephone calling.When 627 frames of Fig. 6-2, this road of road communicating line that assisted cordless base station 115 finishes three-way callings to be terminating in communicating by letter between calling party and the assisted cordless base station 115, and turns back to its Idle state 601 frames.
At frame 505,523, the decision of the conversion of being carried out in 705 and 723 between wireless and cellular telephone system can include but not limited to based on multiple factor: the artificial owner priority of determining, the quality of system scan priority or received radiophone signal automatically.Frame 509 and 709 o'clock, PCC101 also can be to thinking that the more admissible assisted cordless base stations 115 of PCC101 scan.
Two embodiment of the present invention have been introduced above.In first embodiment, a kind of radio telephone configuration that an incoming call can be sent to the PCC101 that is positioned at cellular or cordless telephone system by route has been described.A calling that forward PCC101 carries out has been described in another embodiment, the radio telephone configuration that when PCC101 changes the position between cellular and cordless telephone system, can transfer betwixt.It is contemplated that a radio telephone configuration can include this two embodiment of the present invention.
When two embodiment make up, when before three-way calling can send, changing or cancel the following situation that has when delivering of calling out.An example is that user's land telephone number has the transmission of calling priority.PCC101 is in that cellular telephone is called out and decision is transformed into more than the assisted cordless base station that links to each other with user's road communicating line road telephone number.Deliver and before the three-way calling that will comprise crafty appearance base station 115 can carry out, to cancel to the calling of user's land telephone number.The another one example is that user's cellular telephone number has the transmission of calling priority.PCC101 is in the wireless telephone call, and it determines to be transformed into cellular communication system 103.Before the three-way calling that will comprise cellular telephone system 103 carries out, must cancel to the calling of user's cellular telephone number and delivering.In addition, calling out transmit path can make amendment after end of calling.So independent PCC101 can communicate in a cellular and cordless telephone system equally.
The radio telephone configuration is not limited in cellular and cordless telephone system.The radio telephone configuration can be worked and be done at least two radio telephone systems, and require PCC101 to exchange between these systems this moment.This requirement may relate to (but not being limited by) overlay area, cost of serving or service quality problem.
Because at least two coexistence of systems (traditional cellular communication system and cordless system) and have mutually the radio that overlaps and cover are necessary so set up level of priority.Because cordless system is to be connected with the TELCO public switch telephone network with traditional telephone wire by the road communicating line road in the user family, thereby its one-tenth should be lower than the cellular telephone system of routine.When PCC101 was positioned at the overlay area of cordless telephone base station 115, cordless system can be considered to preferred systems.Therefore, in a preferred embodiment, give assisted cordless base station with priority.But, the user can select other level of priority according to actual needs for use.
Assisted cordless base station 115 one select with local cellular communication system 103 in send the departure signaling message on the irrelevant channel of disturbing of those radio channels that uses.This signaling message is similar to the signaling message that sends in traditional system, its objective is that sign and the help PCC101 in order to provide cordless system determines whether it can utilize.Fig. 8 shows the form of the departure message of sending by its signaling channel from assisted cordless base station 115.Information sends from the NRZ form, wherein, the synchrodata bit (SYNCA) of 20 bits before this, then be 30 bit message words (for the 120NRZ bit of whole message 1/4th), be the synchrodata bit (SYNCB) of 18 bits thereupon, and be the message word of 30 bits.Four fields of this form continuity.In preferential embodiment, next message word begins to continue to send with a SYNCA synchrodata after the 4th 1/4th message word.Among another available embodiment, between message word and their adjacent synchronization bit, be provided with an interruption, thereby make the signalling path discontinuous transmission.
Fig. 9 shows the example of two message word formats.Each message word sends with Manchester (Manchester) form.Because Manchester bit is made up of the NRZ bit of two inverse state, so 60 Manchester bits are encoded into the 120NRZ bit.The example of first message word is an instruction message, it comprises base sign (BID) field 901 of one 32 bit, call out attitude (ALLSTATE) field 903 for one, an instruction (ORDER) field 905, (RESERVED) field 909 and a parity fields (PARITY) 911 of using in the future given in 907, one reservations of instruction eligible (QRDER QUALLFIER) field.The example of second message word format is that a channel changes (switching) message, and it also comprises 60 bits.This message word with 913 beginnings of base identification field, then is to call out attitude field 915 also, and 917, one channels of instruction field go to reach indication (CHAN) field 919 and one 12 bit parity field 921.Each word message has a guiding base identification field (BID), and this field effect is similar to the traditional system banner (SID) that uses in the cellular communication system.Yet this BID comprises 32 bits rather than as 15 bits of cellular communication system.This BID is that unique number is programmed in the assisted cordless base station memory 315 as one to each assisted cordless base station.This unique BID provides the specific feature of each assisted cordless base station, and like this, but user's PCC101 and assisted cordless base station 115 are with collaborative work and unlikelyly taken by the disabled user.
In most preferred embodiment, the dibit of calling out the attitude field is allocated as follows: " 00 "-free time, do not allow initialization at assisted cordless base station: 01 "-free time, allow initialization; " 01 "-jingle bell; And " 11 "-session.2 bit instruction word sections (Order) are expressed like this: instruction and " the 01 "-channel switch or the switching of " 00 "-expansion.The instruction eligible of instruction message word (Order Quaeifier) field is defined as " 00000 "-auxiliary operation and " 00001 "-send by call address.Two synchronization field that adopt in preferential embodiment are: SYNCA=" 01001001010101101101 " and SYNCB=" 010010010101101101 ".Certainly, other synchronous mode also can use, as long as they can provide suitable crosscorrelation characteristic.
For fail safe preferably and interference protection are provided, the BID with command messages word is transmitting on infrasonic frequency on the speech channel continuously.PCC101 receives and decoding BID, and the match condition between the BID of BID that infrasonic frequency is sent and the corresponding assisted cordless base station 115 of PCC101 is checked.As long as mate between BID, the session on speech channel can be proceeded.In case the mismatch of detecting, the audio frequency that PCC101 receives is suppressed by noise elimination, and PCC101 transmitter 403 is closed, and PCC101 receives and the quilt of subsequently 115 the transmission from PCC101 to assisted cordless base station is conversed after interrupting and just is terminated at the BID through the bad coupling of a predetermined period.
If PCC101 sets up such priority: assisted cordless base station 115 is that user's the path of primary need of call and traditional cellular (or microgrid hole) system second are selected, and then Figure 10 shows the processing that realizes this priority.Figure 10 reception condition of PCC receiver 401 on departure signaling channel or one group of signaling channel sending from cellular system, assisted cordless base station and microcellulor shape system of having drawn.This figure helps to understand the scanning priority of novelty of the present invention.
PCC receiver 401 can monitor the departure message flow that (1001) are sent by cellular communication system signaling channel (it is selected) from a plurality of cellular signaling channel of traditional approach.At the appropriate time, the indication of the microprocessor 409 of PCC receiver 401 it be tuned on assisted cordless base station 115 frequency or one of them frequency used as a signaling channel.401 pairs of wireless base departure signaling channels of PCC receiver (1003) scanning a period of time t
2If the quality of the signaling data that receives stream is good inadequately, then PCC receiver 401 is retuned to the signaling channel of the cellular system 103 of previous selection.Before the signaling channel scanning of planning, to tuning maintenance (1005) a period of time t of this signaling channel to one of them alternative system
1t
1And t
2Relation be such: a cellular beep-page message that is repeated after suspending in 5 seconds traditionally is (promptly, the radiotelephone call or the requirement of other transmission) will can not lost, because PCC receiver 401 is just scanning an alternative system during two cellular beep-page message transmitting times.Time t
1Must be bigger than the typical time sum of two pagings of the transmission of the time out between two pagings, and time t
2Again must be less than the time out between two pagings.If time out is to send in 5 seconds, the typical time of paging is 185.2 milliseconds, then 1
1Must be greater than 5.3704 seconds, and 1
2Must be less than 5 seconds.To cellular communication system signaling channel Looking Out Time 1
1After, PCC receiver 401 can be instructed to be tuned to this signaling channel or be transferred to successively on all signaling channels of the microgrid hole system shown among the figure 1007.If in the scan period of predetermined signaling channel frequency the suitable microgrid hole signaling channel of discovery is arranged, then PCC receiver 401 adjusts back to again shown in 1009 on the cellular communication system signaling channel.
When single pass (1001) was found the signaling channel of assisted cordless base station 115 of a signaling data stream that satisfies suitable quality requirement, PCC receiver 401 just continued to monitor this wireless signaling channel.PCC receiver 401 remains on wireless signaling channel and need not go to scan other system again, can not receive the signal that assisted cordless base station sends until PCC101 in continuous 5 seconds.
The effect of this priority treatment is the priority to the assisted cordless base station of PCC101.In case after the signaling channel of this assisted cordless base station 115 was found, PCC101 just kept being tuned on this channel.So, when PCC101 can reach and during assisted cordless base station, it automatically is transformed into this assisted cordless base station by the initial cellular communication system that is tuned in.And in a single day find the signaling channel of this assisted cordless base station when PCC receiver 401, it just keeps tuning to this channel.When the PCC transceiver was connected first, its signaling channel scanning first time was a predetermined signaling channel or the some signaling channel to assisted cordless base station 115.Certainly, the user can ignore automatic priority scanning rank by a refusal sign indicating number being sent to PCC101.By this way, the user can force and only scan cellular communication system signaling channel, and a scanning system base station signaling channel only scans microcellulor shape system access channel, perhaps scans the combination of several systems.The user also can use calling party as, and system's work of its selection is once refused.
In case the signaling channel of a system is monitored, and just provides visual indication to PCC transceiver user.In a preferred embodiment, this indicating device is one group of light-emitting diode (LED) 415.417, each luminous diode indicate uniquely the PCC transceiver tuning system.Also can select to use other indicating device to go to express same information.For example, the sign of system is met on the digital display of present PCC101, perhaps use flashing sign (different flash of light speed is arranged).Thereby this indication can make the user go to determine which system it is in and determines whether it wishes to finish a radiotelephone call in indicated system.
Now introduce Figure 11-1,11-2 and 11-3 there is shown by PCC101 at the flow graph of realizing the scanning priority treatment.Carry out this processing by microprocessor by the operation sequence in its ROM memory 421 of existence.In case power supply one is connected, and at frame 1101 wireless devices cellular scan counter is placed zero.This step be used for guaranteeing PCC101 not because of too much word synchronization loss or other too much heavily sweep the channel that cellular communication system does not scan assisted cordless base station 115.After the zero setting of cellular communication system scan counter, (or a plurality of) signaling channel in advance at 1103 pairs of assisted cordless base stations 115 scans, to determine that PCC101 is whether in the scope of an assisted cordless base station, whether the signaling channel that is received has suitable BID, and whether the signaling channel has enough signal qualitys.Whether all criterions are satisfied in 1105 frame PCC101 decision.If criterion is satisfied, just enter wireless mode of operation, and 1107, by inform the user corresponding to the LED of this wireless mode luminous.1109, the PCC transceiver remains on the pattern of handling wireless function, comprise and monitor the assisted cordless base station signaling channel, send or receive radiotelephone call, carry out itself with wireless base between channel exchange (switching), until synchronous or BID till quilt between PCC101 transceiver and the assisted cordless base station 115 is lost (as detected) 1111.
If synchronous or BID coupling is lost, then handle to forward to and check whether PCC101 is in the radio call 1113.If PCC101 is in the calling, then process is changeed the scanning that enters cellular communication system signaling channel; If it is in the calling, then makes several times and call out the trial that reenters wireless mode.Scan counter is reset again in 1115 wireless bases, and checks the maximum number (maximum number in preferential embodiment=2) whether counter has exceeded the scanning of wireless base 1117.Wireless channel 1103 was scanned like that the time as described above at 1119 o'clock, and checked at 1121 pairs of scanning results.If from scanning, found the signaling channel, then recover wireless telephone call to wireless base station 115.Otherwise, add one at 1123 assisted cordless base station scan counters, and whether check above maximum at 1117 pairs.If the assisted cordless base station scan counter has surpassed maximum, then PCC101 will abrogate the signaling channel of wireless mode and trial scanning cellular system 103.
In 1125 steps, begin cellular scanning, this step also can go into from this stepping of test of 1105.At first, 1125 the concluding time of timer zero setting with the last wireless communication of souvenir scanned in wireless base again.1127 cellular scan counter is added one, because of cellular scanning is about to begin.1129, according to traditional user's setting PCC101 scanning cellular communication system signaling channel.
Should " idle task " 1138 steps at first when 1139 steps, determined when whether carrying out pressure scans assisted cordless base station again.If it is bigger than CBRT that the counting of timer is scanned in wireless base again, wireless scanning more then takes place to force.CBRT is a wireless base scanning stop time again, is set to 60 seconds at preferential embodiment.Make and force wireless scanning again to take place, the counting of cellular scan counter must surpass the maximum times of continuous cellular scanning, and in preference, maximum continuous sweep number of times is made as 6 times.Force to scan eventually and can arrive, radio telephone continues the cellular channel of detection and it is synchronous to lose word because if the detection maximum times surpasses, and then PCC101 can be in the endless circulation.If force wireless scanning unnecessary, then PCC101 enter 1141 the step test to have determined whether cellular word synchronous.If there is no this word is synchronous, then rescans cellular communication system by turning back to for 1127 steps.Because to the scanning of wireless base, so skip this step that resets of scanning timer again of 1125 to wireless base.
If exist word synchronous, then determine whether to be necessary to visit a system (that is a calling party, call page answer, or the visit of other directed cellular communication system) in 1143 steps.Carry out system's visit if necessary, then cellular system is done the trial of conventional formula visit in 1146 steps.Visit the program that successfully then turns back to after the energising.If the visit failure such as receiving a paging request, is failed but answer, as 1148 judge, then turn back to scanning to cellular communication system signaling channel.
If unnecessary to system's visit, determine whether to take place cellular scanning again in 1145 steps in the identification of 1143 steps.If cellularly scan again that timer surpasses 300 seconds and the wireless timer that scans again surpasses minimum sweep time again, then carry out cellular scanning again.Minimum again sweep time be t
1Minimum value, be 5.3704 seconds in precedent.Carry out the wireless test that scans timer again and guarantee that PCC101 has an opportunity to receive in two potential transmissions of same paging.When a honeycomb scans when taking place again, PCC101 entered for 1127 steps, had promptly skipped in 1125 steps resetting of timer to be scanned in wireless base again.
If cellular scan again unnecessary, 1147 the step test to determine whether that tackling a wireless base scans.If wireless base scan again timer surpass CBRT and cellular scan again timer than minimum again sweep time big, generation is scanned in then wireless base again.Before talk about, minimum again sweep time be 5.3704 seconds.Carry out the cellular timer that scans again of test and guarantee that PCC101 has an opportunity to receive in two potential transmissions of same paging.The value of CBRT (wireless base scanning timer) must compare t
1Value (promptly 5.3704 seconds) is big.The CBRT value that this preference is selected for use is 60 seconds.If the scanning of wireless base is unnecessary, then turns back to " idle task " and promptly 1138 begin to locate.Just turn back to 1139 the step test.
If wireless scanning again is necessary, then went to for 1149 steps, the cellular scan counter that resets begins to handle.This also is first state that scans again at the pressure honeycomb that 1139 steps were determined.In 1149 steps, the cellular scan counter that resets is to guarantee that the wireless scanning of making in 1139 steps of pressure is necessary.After cellular scan counter resetted, the signaling channel in 1151 steps to assisted cordless base station 115 scanned, as 1103 steps are described.If determine to have found then to enter wireless mode by assisted cordless base station, and in 1107 steps, announce the user in the test in 1153 steps.If do not find wireless base, then PCC101 must turn back to previous control channel in 1155 steps.Then, synchronous at 1157 delay probes.Go on foot the assisted cordless base station that resets 1159 and scan the time of timer again to indicate last wireless base scanning to take place.At last, processing procedure is recovered on the top 1139 that goes to " idle task " 1138.
Claims (2)
1. cellular cordless telephone plant, have first operator scheme that is used for the cellular radio channel transmitting-receiving cellular calls by a cell phone system and be used for second operator scheme of on a cellular radio channel that is used by wireless machine station transmitting-receiving wireless telephone call, wireless machine station links to each other with a phone road communicating line, this road communicating line has a road communicating line telephone number, it is characterized in that above-mentioned cellular cordless telephone plant comprises:
Be used for during call, from the device of selecting automatically between first operator scheme and second operator scheme;
Be used for when working in first operator scheme and second operator scheme device of receipt of call on the cellular radio channel; And
Be used for when working in first operator scheme, on the cellular radio channel, to have the power level call of selecting in one group of predetermined electric power level, and when working in second operator scheme, on the cellular radio channel, to have the device of the power level call of selecting in one group of predetermined electric power level, wherein first group of predetermined electric power level and second group of predetermined electric power level are inequality.
2. method of operating the cellular cordless telephone plant, described equipment has first operator scheme that is used for the cellular radio channel transmitting-receiving cellular calls by a cell phone system and is used for second operator scheme of on a cellular radio channel that is used by wireless machine station transmitting-receiving wireless telephone call, wireless machine station links to each other with a phone road communicating line, this road communicating line has a road communicating line telephone number, it is characterized in that this method comprises:
During call, from the step of selecting automatically between first operator scheme and second operator scheme;
When working in first operator scheme and second operator scheme, the step of receipt of call on the cellular radio channel; And
When working in first operator scheme, on the cellular radio channel,, reach to have the power level call step of selecting in one group of predetermined electric power level
When working in second operator scheme, on the cellular radio channel, to have the power level call step of selecting in one group of predetermined electric power level, wherein first group of predetermined electric power level and second group of predetermined electric power level are inequality.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83211892A | 1992-02-06 | 1992-02-06 | |
| US07/832,118 | 1992-02-06 |
Publications (2)
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| CN1075235A CN1075235A (en) | 1993-08-11 |
| CN1037479C true CN1037479C (en) | 1998-02-18 |
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ID=25260743
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|---|---|---|---|
| CN93100248A Expired - Fee Related CN1037479C (en) | 1992-02-06 | 1993-01-09 | Dual system cellular cordless radiotelephone apparatus |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JP3563401B2 (en) |
| KR (1) | KR960012088B1 (en) |
| CN (1) | CN1037479C (en) |
| BR (1) | BR9205851A (en) |
| CA (1) | CA2105767C (en) |
| FR (1) | FR2687874B1 (en) |
| GB (1) | GB2271917B (en) |
| IT (1) | IT1264308B1 (en) |
| MX (1) | MX9300644A (en) |
| WO (1) | WO1993016560A1 (en) |
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| GB2282731C (en) * | 1993-10-08 | 2006-09-06 | Nokia Telecommunications Oy | Dual mode subscriber terminal and a handover procedure of the dual mode subscriber terminal in a mobile telecommunications network |
| GB2282730B (en) * | 1993-10-08 | 1998-01-28 | Nokia Telecommunications Oy | Dual mode subscriber terminal and a handover procedure of the dual mode subscriber terminal in a mobile telecommunication network |
| US5590397A (en) * | 1993-12-17 | 1996-12-31 | Nec Corporation | Selecting and prioritizing radio telephone systems at radio terminal |
| US6708028B1 (en) * | 1993-12-22 | 2004-03-16 | Nokia Mobile Phones, Ltd. | Multi-mode radio telephone |
| GB2285555B (en) * | 1993-12-22 | 1998-07-29 | Nokia Mobile Phones Ltd | Multi-mode radio telephone |
| KR970003970B1 (en) * | 1994-04-18 | 1997-03-24 | 삼성전자 주식회사 | Telepoint base station |
| GB2296626B (en) * | 1994-12-23 | 1999-07-28 | Nokia Mobile Phones Ltd | Multi-mode radio telephone |
| JPH08205239A (en) * | 1995-01-25 | 1996-08-09 | Matsushita Electric Ind Co Ltd | Radio telephone equipment |
| JPH0951321A (en) * | 1995-08-09 | 1997-02-18 | Sony Corp | Radio communication equipment and radio communication method |
| GB2304495B (en) * | 1995-08-15 | 1999-12-29 | Nokia Mobile Phones Ltd | Radio resource sharing |
| JPH0984095A (en) * | 1995-09-08 | 1997-03-28 | Sony Corp | Mobile communication equipment, stationary communication equipment, communication system and communication method |
| JP3173356B2 (en) | 1996-01-12 | 2001-06-04 | 三菱電機株式会社 | Communication device and communication system |
| AU715950B2 (en) * | 1996-06-20 | 2000-02-10 | Alcatel Australia Limited | Domestic cordless phone |
| GB2315193B (en) * | 1996-07-10 | 2000-11-15 | Orange Personal Comm Serv Ltd | Mobile communications system |
| US5794159A (en) * | 1996-08-07 | 1998-08-11 | Nokia Mobile Phones Limited | Dual band mobile station employing cross-connected transmitter and receiver circuits |
| JPH1066156A (en) * | 1996-08-23 | 1998-03-06 | Matsushita Electric Ind Co Ltd | Mode corresponding type telephone set |
| FI980351A (en) | 1997-02-19 | 1998-08-20 | Nokia Telecommunications Oy | Cellular radio access network and location update in a wireless communication system |
| FR2761224B1 (en) * | 1997-03-20 | 2001-10-05 | Alsthom Cge Alkatel | METHOD OF RECORDING AT LEAST ONE BIMODE MOBILE STATION WITH AN ASSOCIATED HOME BASE STATION |
| US6212375B1 (en) | 1997-05-15 | 2001-04-03 | Nokia Mobile Phones Limited | Method and apparatus providing residential base carrier inactivation after line failure or line in use |
| US5974305A (en) | 1997-05-15 | 1999-10-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations |
| US6125266A (en) * | 1997-12-31 | 2000-09-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations having transmitter linearization feedback |
| US6526034B1 (en) | 1999-09-21 | 2003-02-25 | Tantivy Communications, Inc. | Dual mode subscriber unit for short range, high rate and long range, lower rate data communications |
| FR2800226B1 (en) * | 1999-10-21 | 2002-08-30 | Sagem | METHOD FOR DETECTING THE POSITION OF A MOBILE TELEPHONE |
| CN1408147A (en) * | 2000-10-04 | 2003-04-02 | 三菱电机株式会社 | Wireless communication device |
| CN100379229C (en) * | 2002-08-12 | 2008-04-02 | 华为技术有限公司 | Method of receivel/send end ability selection |
| CN1297170C (en) * | 2004-06-07 | 2007-01-24 | 华为技术有限公司 | Multi-mode terminal user information management apparatus and management method |
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- 1992-12-02 KR KR1019930702979A patent/KR960012088B1/en not_active IP Right Cessation
- 1992-12-02 WO PCT/US1992/009722 patent/WO1993016560A1/en active Application Filing
- 1992-12-02 BR BR9205851A patent/BR9205851A/en not_active IP Right Cessation
- 1992-12-02 GB GB9319679A patent/GB2271917B/en not_active Expired - Fee Related
- 1992-12-02 JP JP51403093A patent/JP3563401B2/en not_active Expired - Fee Related
- 1992-12-02 CA CA002105767A patent/CA2105767C/en not_active Expired - Fee Related
-
1993
- 1993-01-09 CN CN93100248A patent/CN1037479C/en not_active Expired - Fee Related
- 1993-01-18 IT IT93RM000023A patent/IT1264308B1/en active IP Right Grant
- 1993-02-04 FR FR9301242A patent/FR2687874B1/en not_active Expired - Fee Related
- 1993-02-04 MX MX9300644A patent/MX9300644A/en not_active IP Right Cessation
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| EP0435052A2 (en) * | 1989-12-26 | 1991-07-03 | Motorola, Inc. | Automatic new system registration notification |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960012088B1 (en) | 1996-09-12 |
| CA2105767A1 (en) | 1993-08-07 |
| IT1264308B1 (en) | 1996-09-23 |
| FR2687874B1 (en) | 1997-01-31 |
| ITRM930023A1 (en) | 1994-07-18 |
| MX9300644A (en) | 1993-09-01 |
| BR9205851A (en) | 1994-08-02 |
| GB2271917A (en) | 1994-04-27 |
| JP3563401B2 (en) | 2004-09-08 |
| JPH06506818A (en) | 1994-07-28 |
| FR2687874A1 (en) | 1993-08-27 |
| CA2105767C (en) | 1999-11-02 |
| GB9319679D0 (en) | 1994-02-09 |
| GB2271917B (en) | 1996-07-03 |
| ITRM930023A0 (en) | 1993-01-18 |
| CN1075235A (en) | 1993-08-11 |
| WO1993016560A1 (en) | 1993-08-19 |
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