CN100441051C - Communication method of public network privat network two-standby of personal mobile phone system terminal - Google Patents
Communication method of public network privat network two-standby of personal mobile phone system terminal Download PDFInfo
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- CN100441051C CN100441051C CNB2006100675534A CN200610067553A CN100441051C CN 100441051 C CN100441051 C CN 100441051C CN B2006100675534 A CNB2006100675534 A CN B2006100675534A CN 200610067553 A CN200610067553 A CN 200610067553A CN 100441051 C CN100441051 C CN 100441051C
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Abstract
The invention provides a dual active-standby communication method via public and private network for a specific individual terminal of mobile phone system. It sets the PHS Terminal with two kinds of parameters (public network parameters and private network parameters), which makes the PHS scan and receive two kinds of LCCH information, then it makes the terminal synchronize with the two networks to monitor the PCH of the public and private network; it makes the terminal determine the priority level of the two networks, at the same time, the terminal appoints a public network-mode or private network-mode to realize the dual active-standby. In addition, the private network-mode can be shift to the public.
Description
Technical field
The present invention relates to a kind of wireless communication technique, particularly the means of communication of the two standbies of the hand-held telephone system terminal public network private network of people.
Background technology
Along with the development of mobile communication, people utilize GSM, and CDMA can communicate by letter anywhere or anytime with personal handyphone system (PHS) public network.In order to increase work efficiency, more and more enterprises is prepared the work communication mode of enterprises is developed to moving from fixing.Enterprise has moved two kinds of solutions, and one is to use the virtual net of mobile system; Another kind method is to set up the mobile communcations system of enterprise-specific.These two kinds of methods cut both ways, the problem that exists enterprise to set up special-purpose PHS mobile communcations system and public PHS network how to merge on terminal promptly adopts the two standby terminals of PHS to realize the problem of the free communication of individual in the PHS of enterprise private network and public PHS network.
Summary of the invention
Technical problem to be solved by this invention provides the means of communication of the two standbies of phs terminal public network private network of a kind of hand-held telephone system mobile communcations system of people of special use and the fine fusion on terminal of public PHS network.
In order to solve the problems of the technologies described above, the means of communication of the two standbies of the hand-held telephone system terminal public network private network of people provided by the invention are following realizations:
Phs terminal is provided with two cover user customized parameters: public network parameter and private network parameter, it can be scanned receive two cover LCCH information, terminal and two networks are carried out synchronously to monitor the PCH of public network and private network; Make terminal determine the priority of public network private network, terminal can be specified and be used public network pattern or private network pattern to breathe out simultaneously, thereby makes the two standbies of terminal, in addition, carries out the switching of private network to public network by following step:
1, when terminal from the private network overlay area when move the public network overlay area, when the private network base station radio signal level of receiving is lower than a certain threshold value α, terminal will at first be searched for other private network base station, if signal level does not have the private network base station that is higher than a certain threshold value, terminal will be searched for the public network base station that level is higher than a certain threshold value γ.
2, terminal is initiated a switch call, and this calling does not have any difference with common public network terminal in public network, and called number is an interim DID number in the private network private branch exchange system, and this number can be established in two standby phs terminals.
3, the private network private branch exchange system is by analyzing called number, and confirming this time to call out is switch call.
4, private network private branch exchange system Query Database, the private network number of definite terminal of switching.
5, the private network private branch exchange system carries out the time slot interconnection, original wireless link of dismantling.
The two standbies of phs terminal public network private network of the fine fusion of the means of communication of the two standbies of the hand-held telephone system terminal public network private network of people provided by the invention, solve the problem that enterprise sets up special-purpose PHS mobile communcations system and public PHS network how to merge on terminal, promptly adopted the two standby terminals of PHS to realize the problem of the free communication of individual in the PHS of enterprise private network and public PHS network.
Description of drawings
Fig. 1 private network LCCH superframe structure;
The two LCCH of Fig. 2 solve the LCCH switching principle figure of two standby problems;
Fig. 3 private network is to being total to switching principle figure.
Embodiment:
Following mask body has been set forth the operating position of terminal dual standby mode in privately owned PHS network of enterprise and public PHS network (hereinafter to be referred as public network and private network).
If phs terminal is within the public network covering, outside the private network coverage, owing to can not receive the signal of private network, at this moment, the identity of this phs terminal is exactly a common public network phs telephone.Can find this user by calling out its public network number.
Phs terminal is in the common area of coverage of public network and private network, as enterprises.When its private network number of other customer calls, this mobile phone can receive and call out and ring, if when its public network Personal Handy-phone System number of other customer calls is arranged, this user also can receive and call out and ring.
When this radio extension carried out caller in enterprise, this was called out and can breathe out from private network.But the user is (private network is preferential) or the manual mode of switching automatically also, selects the pattern of public network in the mobile phone menu, this mobile phone common public network phs telephone just just at this moment, its incoming call and breathe out and all undertaken by the public network Personal Handyphone System.
Provide phs terminal public network private network two idle functions, then need some notions are clarified.At first, the public network of PHS refers to the common network that operator provides, it is China Telecom, the public network that China Netcom provides, need in the phs terminal to contain that the regulation network parameter is an operator code in the public network, the control carrier frequency, country code, also having the business customizing parameter simultaneously in the phs terminal is PS number and the authentication code that is used for authentication.Network parameter and user data write in advance or provide by PIM by writing a yard device.Secondly, the private network of PHS refers to that the PHS that enterprise's private network and home gateway provide inserts, here, our prescribed terminal parameter does not need to write in advance by writing a yard device, but by supporting that wireless base station or home gateway (cordless telephone machine tool) network that carries out terminal use's data customization of writing sign indicating number is private network, the network of promptly supporting the private network agreement is a private network.(some private network has used the public network agreement) the 3rd, the two standby terminals of public network and private network have two numbers are arranged, and one is the private network number of enterprise, and another is exactly a public network PHS number.So-called pair of standby refers to that this terminal can receive the calling of public network transmission and the calling that private network sends simultaneously, i.e. standby simultaneously is under two networks, and this is the basic function of two standbies.
Public network uses 26 or No. 28 frequencies as the control channel carrier frequency; Special-purpose or privately owned PHS system uses 24 and 30 as the communications control channel carrier frequency.
Two idle functions have proposed some following new demands to terminal:
1) terminal need keep two cover user customized parameters, public network parameter and private network parameter;
2) terminal need scan the two cover LCCH information that receive;
3) terminal need be carried out synchronously with two networks, monitors the PCH of public network and private network;
4) terminal need be determined the priority of public network private network;
5) terminal can be specified and be used public network pattern or private network pattern to breathe out.
Referring to Fig. 1, the LCCH superframe structure parameter of public network is n=20, nGroup=4, nSG=1, nPCH=2, nSUB=3, nBS=1
The parameter of the LCCH superframe structure of the private network of recommending is n=27 at present, nGroup=4, nSG=1, nPCH=2, nSUB=3, nBS=1
Why select for use LCCH to send spacing parameter n=27?, mainly based on following consideration;
At first, according to the regulation of RCR STD-28, the scope of the n value of private network regulation be n more than or equal to 25 smaller or equal to 60;
The second, consider to make public network CCH and the overlapping least number of times of private network CCH that promptly the least common multiple of the n value of public network and private network is the bigger the better as far as possible;
The 3rd, guarantee that the n value is the smaller the better, shorten the wireless time delay that continues;
Following table is 1 hour overlapping number of times of different n values:
| N | 25 | 26 | 27 | 28 | 29 |
| Overlapping number of times | 601 | 231 | 112 | 429 | 104 |
| N | 30 | 31 | 32 | 33 | 34 |
| Overlapping number of times | 1001 | 97 | 376 | 91 | 177 |
| N | 35 | 36 | 37 | 38 | 39 |
| Overlapping number of times | 429 | 334 | 82 | 158 | 77 |
Consider in the table that 27 and 29 overlapping number of times difference is not too obvious, n is big more simultaneously causes called connecting time long more.
Through actual test, employing n=27 is optimal selection.
PHS adopts the TDMA/TDD communication mode, and Network Synchronization is the key factor of PHS network performance, not only has influence on performance, also has influence on capacity.The network step-out can cause the transmitting-receiving of wireless network constantly inconsistent, and the as many as interference that increases wireless side directly translates into: the called call completing rate of network descends, and switches cutting off rate and raises.The Network Synchronization of public network is generally done relatively goodly at present, absolute frequency accuracy (comparing) with gps clock, and frequency shift (FS) was less than 3 * 10 in 24 hours
-9Consider private network, we are divided into enterprise network and individual home gateway with private network.At enterprise network, because the scale of the general enterprise that uses wireless office is bigger, so enterprise network must have the ability with the public network Network Synchronization, generally uses GPS to carry out synchronously.And, consider the cost problem for individual home gateway, can not use GPS synchronous.The absolute frequency accuracy of supposing home gateway is 3ppm, and then synchronous according to PHS requirement (53 μ s) then promptly loses through system after 18 seconds synchronously.Consider when public network and private network PCH frame are overlapping that in the some frames in interval, terminal can't receive the PCH of public network and private network simultaneously, promptly can't realize the ability of two standbies.If suppose that be 4 frames this blanking time, 5ms * 4=20ms just, need 20 * 1000/3=6666.6 second, that is 100 minutes, so needing solution can address this problem, have two kinds of methods to solve, a kind of is in real time and the public network base station synchronization, as each second or per 10 seconds synchronously once.Another kind is the way that adopts 2 LCCH.The general way of recommending to use 2 LCCH.Explanation in like manner, enterprise's private network must carry out synchronously with public network, guarantees two standbies of public network and private network.
With reference to Fig. 2, the two LCCH of private network have two kinds of implementations, a kind of method is to realize 2 LCCH on a control frequency, another kind method is to realize 2 LCCH on different frequencies, such as on No. 24 and No. 30 frequencies, realizing LCCH respectively, can be separate between two LCCH, also correlation can be arranged, realize even number PCH such as realizing that on a LCCH odd number PCH, another LCCH go up.
If realize the two standbies of public and private net, two LCCH must be separate.Spacing parameter between the superframe between two LCCH is N offset, and the transmission interval of the control time slot of the control time slot of this LCCH and other LCCH is calculated by following formula
Δt＝5×N?offset?ms+0.625×(absolute?slot?number?of?other?controlslot-absolute?slot?number?of?local?control?slot)ms
Such as LCCH1 being got N loffset=10, Absolute slot=1
LCCH2 gets N2 offset=17, Absolute slot=1
Then the transmission interval of LCCH2 and LCCH1 is the 17 * 5+0.625 that lags behind * (1-1)=85ms
The transmission interval of LCCH1 and LCCH2 is the 10 * 5+0.625 that lags behind * (1-1)=50ms
How the explained later terminal realizes two standbies.Successive scanning public network LCCH and two private network LCCH behind the starting terminal determine the superframe interval of public network LCCH and private network LCCH.In follow-up time, only intercept LCCH and one of them private network LCCH of public network, suppose that this private network logical control channel is LCCH1.Note that any one constantly terminal can only intercept a LCCH.If public network and private network are synchronous, can accomplish that then the LCCH of public and private net does not overlap, but in the application of home gateway, can not accomplish synchronously, on cost, consider it is impossible at least.So if terminal calculates sometime, the PCH of public network and private network overlaps just, at this time terminal must frequency hopping arrive another private network logical control channel LCCH2, as above scheme, when LCCH1 and public network LCCH coincidence, the logical control channel LCCH2 of private network lags behind public network LCCH superframe 50ms.So, phs terminal promptly can be realized two standbies.
Referring to Fig. 3, in order to realize the switching between public network and the private network.At first consider the switching from the private network to the public network.It can be realized by following steps:
1, terminal from the private network overlay area when move the public network overlay area, when the private network base station radio signal level of receiving is lower than a certain threshold value α, terminal will at first be searched for other private network base station, if signal level does not have the private network base station that is higher than a certain threshold value, terminal will be searched for the public network base station that level is higher than a certain threshold value γ.
2, terminal is initiated a switch call, and this calling does not have any difference with common public network terminal in public network, and called number is an interim DID number in the private network private branch exchange system, and this number can be established in two standby phs terminals.
3, the private network private branch exchange system is by analyzing called number, and confirming this time to call out is switch call.
4, private network private branch exchange system Query Database, the private network number of definite terminal of switching.
5, the private network private branch exchange system carries out the time slot interconnection, original wireless link of dismantling.
Claims (1)
1, the means of communication of the two standbies of a kind of personal handyphone system terminal public network private network, it is characterized in that, phs terminal is provided with the public network parameter and the private network parameter of customization, it can be scanned receive two cover LCCH information, terminal and two networks are carried out synchronously to monitor the PCH of public network and private network; Make terminal determine the priority of public network private network, terminal can be specified and be used public network pattern or private network pattern to breathe out simultaneously, thereby makes the two standbies of terminal; In addition, carry out the switching of private network by following step to public network:
1) from the private network overlay area when move the public network overlay area, when the private network base station radio signal level of receiving is lower than a certain threshold value α, terminal will at first be searched for other private network base station, if signal level does not have the private network base station that is higher than a certain threshold value, terminal will be searched for the public network base station that level is higher than a certain threshold value γ;
2) terminal is initiated a switch call, and this calling does not have any difference with common public network terminal in public network, and called number is the DID number interim, that can establish in two standby phs terminals of in the private network private branch exchange system;
3) the private network private branch exchange system is by analyzing called number, and confirming this time to call out is switch call;
4) private network private branch exchange system Query Database, the private network number of definite terminal of switching;
5) the private network private branch exchange system carries out the time slot interconnection, original wireless link of dismantling.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100675534A CN100441051C (en) | 2005-08-10 | 2006-03-17 | Communication method of public network privat network two-standby of personal mobile phone system terminal |
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| CN200510028662.0 | 2005-08-10 | ||
| CN200510028662 | 2005-08-10 | ||
| CNB2006100675534A CN100441051C (en) | 2005-08-10 | 2006-03-17 | Communication method of public network privat network two-standby of personal mobile phone system terminal |
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| CN1913709A CN1913709A (en) | 2007-02-14 |
| CN100441051C true CN100441051C (en) | 2008-12-03 |
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| CN103220584A (en) * | 2012-01-19 | 2013-07-24 | 上海阅维信息科技有限公司 | Wireless video and audio application system for simultaneously supporting public network transmission and private network transmission |
| CN111835919B (en) * | 2019-04-15 | 2022-03-18 | 成都鼎桥通信技术有限公司 | Service processing method and device of broadband cluster terminal and broadband cluster terminal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08168073A (en) * | 1994-12-13 | 1996-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Connection processing method for private network interlocking with public network |
| CN1148778A (en) * | 1995-06-01 | 1997-04-30 | 日本电气株式会社 | Personal hand telephone system |
| JPH10215471A (en) * | 1997-01-31 | 1998-08-11 | Matsushita Electric Ind Co Ltd | Private automatic branch exchange |
| CN1250273A (en) * | 1998-08-28 | 2000-04-12 | 日本电气株式会社 | Personal portable telephone system mobile radio station |
| CN1558651A (en) * | 2004-02-10 | 2004-12-29 | Ut斯达康通讯有限公司 | Dual mode personal handheld telephone and dual mode communication system |
| US20040264410A1 (en) * | 2003-06-30 | 2004-12-30 | Motorola, Inc. | Method and apparatus for providing a communication unit with a handoff between networks |
| JP2005045685A (en) * | 2003-07-24 | 2005-02-17 | Nec Engineering Ltd | Private branch exchange system for public phs |
| CN1585507A (en) * | 2003-08-20 | 2005-02-23 | 英华达（南京）科技有限公司 | Method for automatic switching communication modes |
-
2006
- 2006-03-17 CN CNB2006100675534A patent/CN100441051C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08168073A (en) * | 1994-12-13 | 1996-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Connection processing method for private network interlocking with public network |
| CN1148778A (en) * | 1995-06-01 | 1997-04-30 | 日本电气株式会社 | Personal hand telephone system |
| JPH10215471A (en) * | 1997-01-31 | 1998-08-11 | Matsushita Electric Ind Co Ltd | Private automatic branch exchange |
| CN1250273A (en) * | 1998-08-28 | 2000-04-12 | 日本电气株式会社 | Personal portable telephone system mobile radio station |
| US20040264410A1 (en) * | 2003-06-30 | 2004-12-30 | Motorola, Inc. | Method and apparatus for providing a communication unit with a handoff between networks |
| JP2005045685A (en) * | 2003-07-24 | 2005-02-17 | Nec Engineering Ltd | Private branch exchange system for public phs |
| CN1585507A (en) * | 2003-08-20 | 2005-02-23 | 英华达（南京）科技有限公司 | Method for automatic switching communication modes |
| CN1558651A (en) * | 2004-02-10 | 2004-12-29 | Ut斯达康通讯有限公司 | Dual mode personal handheld telephone and dual mode communication system |
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