CN1365581A - Signalling method for a mobile telephone system - Google Patents
Signalling method for a mobile telephone system Download PDFInfo
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- CN1365581A CN1365581A CN 00810935 CN00810935A CN1365581A CN 1365581 A CN1365581 A CN 1365581A CN 00810935 CN00810935 CN 00810935 CN 00810935 A CN00810935 A CN 00810935A CN 1365581 A CN1365581 A CN 1365581A
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- mobile radio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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Abstract
The invention relates to a signalling method for a GSM-mobile telephone system. Said method comprises using at least one base station and at least one subscriber station, and a first frequency channel for the transmission of signalling information between the base station and said subscriber station. At least one element of a group of values is transmitted together with the signalling information and a first partial group of said group of values is used as frequency channel numbers for allocating the frequency channels of the GSM-mobile telephone system. A second partial group of the group of values is used for the signalling of additional control functions for the subscriber station which also perform the allocation of the frequency channels of the GSM-mobile telephone system.
Description
The present invention relates in the GSM mobile radio system, send method, base station and the subscriber board of signaling.
In mobile radio system, message (voice, image information or other data) is transmitted through transmission channel by electromagnetic wave (wave point).This transmission was both carried out the down direction from the base station to subscriber board (down link), also carried out the up direction from subscriber board to the base station (up link).
In frequency-duplex (FDD), transmitting and receiving is to carry out in the corresponding different frequency bands that separates, and for time duplex (TDD), described both direction is to separate by different time slots.
Known from DE 19810285.2, known method can be used to distinguish signal source and analytic signal thus with frequency multiplex (FDMA), time multiplexing (TDMA) or code multiplexed (CDMA), and described method also can make up mutually.The outstanding example of time multiplexing (TDMA) is exactly above-mentioned TDD (time division duplex) transmission method, wherein both transmits in the up direction from the base station to subscriber board in common channel, transmits in the down direction from subscriber board to the base station again.
From the GSM world standard of mobile radio system, DE 19746894 disclosed the channel that switches to the TD-CDMA transmission from the channel of GSM transmission communicating to connect.Between in different mobile radio systems, switch, need complicated signaling.
Task of the present invention is to provide a kind of Signalling method of improvement, the base station of improvement and the subscriber board of improvement, and they can realize reciprocation between the existing GSM mobile radio system and the mobile radio system in future.This task is solved by the base station of the feature with claim 8, the method that has the subscriber board of 9 feature and have a feature of claim 1.Advantageous modification of the present invention is provided by dependent claims.
In the Signalling method of GSM mobile radio system, described GSM mobile radio system has at least one base station and at least one subscriber board, can use first channel to come command transmitting information between described base station and subscriber board.Utilize described signaling information to transmit at least one element of a number value group, wherein said numerical value group's first subgroup is used to distribute the channel of described GSM mobile radio system with the form of channel.Described numerical value group's second subgroup is utilized for the controlled function signaling that described subscriber board sends channel allocation additional, that exceed the GSM mobile radio system.
The present invention has not only guaranteed from the GSM mobile radio system to the interaction capacity such as UMTS following mobile radio systems such as (Universal Mobile Telecommunications System), but also guaranteed compatibility, be used for handoff procedure or other controlled function because the existing signaling possibility in the GSM mobile radio system can be expanded, this also can realize present GSM mobile radio system is transferred to following mobile radio system.The present subscriber board of GSM mobile radio system unit's channel distribution usually of using described first subgroup with the form of channel.On the contrary, at present the subscriber board of GSM mobile radio system has but been ignored element in described numerical value group's second subgroup.
For not only supporting present GSM mobile radio system but also supporting subscriber board such as following mobile radio systems such as W-CDMA (study carefully tape code and divide multiple access) systems, also be so-called multi-mode subscriber board, they can analyze the signaling information of the element in described numerical value group's second subgroup.At this, following mobile radio system has different Code And Decode principles.The multi-mode subscriber board also can carry out Code And Decode to the distinctive signaling information of the system of following mobile radio system, and obtain signaling information through described first or second channel thus about the Code And Decode principle, jointly it is analyzed and realizes controlled function then.
Described numerical value group's element only is used to determine to have the fixedly channel of the GSM mobile radio system of Duplex Spacing so far.This function is so far used the element of described second subgroup not according to original purposes, and uses it for other controlled function.Therefore, utilize described numerical value group's element can send the signaling of determining other mobile radio system highly beneficially.
Utilize method of the present invention for example can between GSM mobile radio system and UMTS mobile radio system, realize a kind of protocol converter very simply.Element by described second subgroup can switch to the signaling of UMTS mobile radio system to the subscriber board transmission, and starts the agreement switching simultaneously, just the protocol conversion of GSM mobile radio system is become the agreement of UMTS mobile radio system.
For the wireless system in future, can some element definitions in described numerical value group's second subgroup be become " still idle ", so that also can not limit great flexibility and the transfer ability that the present invention obtains to the system in future.Scheme also can be expanded described numerical value group at the GSM mobile radio system, so that realize enough flexibilities as an alternative.
Can usually control explanation by the unit in described numerical value group's second subgroup to the distinctive signaling information of system.So, for example can usually control the grade or the priority of the handoff procedure between the different mobile radio systems by the unit in this second subgroup, prevent certain system overload thus.A plurality of elements in described second subgroup can be described a controlled function, but utilize different parameter expressions.
Element in described second subgroup also can advantageously be used for further sending the controlled function signaling.If in communication period, for example during the conversation that existing GSM connects, need such as give above-mentioned image of subscriber board transmission, then can in the W-CDMA system, utilize the unit in this numerical value group's second subgroup to send the signaling of this image of transmission usually for described subscriber board.Need the business of higher data rate to transmit dividually, and need not interrupt the communication in the GSM mobile radio system or whole communication switched to described W-CDMA system.
For channel being distributed to the channel of GSM mobile radio system, the distribution in 1997 of GSM 05.05 6.3.0 version once disclosed by channel (absolute wireless channel ARFCN) and was respectively down direction and up direction specified channel.For E-GSM 900 (expansion GSM 900) has stipulated channel 0～124 and 975～1023, for DCS 1800 (GSM1800) has stipulated channel 512～885.
Define numerical value group 0～1023 for present GSM mobile radio system.If with other frequency and other channel that the form of channel distributes the GSM mobile radio system for first subgroup, this limited channel resource will soon use up so.If define another numerical value group by introducing another GSM mobile radio system, the present invention can utilize by the signaling that element sent in the numerical value group's of present GSM mobile radio system second subgroup with by this another numerical value group's the signaling that element sent and realize described controlled function together so.Utilize element in numerical value group's second subgroup of present GSM mobile radio system and described another numerical value group's channel can determine the channel of described another GSM mobile radio system together.
The subscriber board that can establish a communications link in two GSM mobile radio systems can switch to another GSM mobile radio system from a system.At this, the element interaction of described second subgroup is an indicating device, and it can indicate further signaling information.At this, this information can be transmitted in first channel or second channel.Therefore radio communication service amount heterogeneous that can balanced described two GSM mobile radio systems according to the present invention.
Especially preferred is to send the signaling that communicates to connect that can switch between the base station of described subscriber board and another mobile radio system by at least one element in described second subgroup.Another mobile radio system herein is the TD-CDMA system, and it can utilize than the much higher data rate of present GSM mobile radio system transmits.If this GSM mobile radio system overload, or the wireless connections of leading to the base station degenerate, so can be according to the present invention be that described subscriber board is communicating to connect the base station that switches to the TD-CDMA system by the element of described second subgroup.Another element for example can be realized communicating to connect the base station that switches to the W-CDMA system.
This signaling information for example can be used for controlling subscriber board, makes that this subscriber board can be with the form inquiry of the intelligent subscriber platform additional information about neighbor cell and system, and automatically judges at handoff procedure.
In a kind of advantageous modification of the present invention, the common element of described second subgroup of in described first channel, transmitting and the distinctive signaling information of system that additionally in second channel, transmits, be used to trigger controlled function analyzed.At this, the distinctive signaling information of described system by second channel transmission for example comprises the channel and/or the chip sequence of cdma system, to be used in the base station of cdma system and not only can but also can to have set up communicating to connect between the subscriber board of communication with the CDMA mobile radio system with the GSM mobile radio system.During leading to the communicating to connect of GSM mobile radio system, described subscriber board obtains information about neighbor cell and system by the distinctive signaling information of the system of the element of second subgroup and cdma system, and affiliated base station stored in a tabulation with may select as handoff procedure.
At this, the analysis of the distinctive signaling information of system is not limited to a channel.The distinctive signaling information of system can transmit by second channel, so that each mobile radio system that can be received by subscriber board distinctive signaling information of analytical system all.At this, the distinctive signaling information of this system is side by side or in time to be independent of the element in described numerical value group's second subgroup and to receive or analyze.
Especially preferredly be to utilize described controlled function to come some switching time between the time slot of the up direction (up link) of stipulated time duplex mobile radio system and down direction (down link).The controlled function that put the switching time between the up direction (up link) of time duplex mobile radio system and the time slot of down direction (down link) still is unknown in present GSM mobile radio system.According to the present invention, for can again can be to the subscriber board of setting up communication such as TD-CDMA mobile radio system equal time duplex mobile radio system to the GSM mobile radio system, they can the GSM mobile radio system communicate to connect the described signaling information of period analysis, and for example under the extremely asymmetric situation of the data rate between down link and the up link, switch to time duplex mobile radio system.
For can differentiate as well as possiblely some switching time between the time slot of up direction (up link) and down direction (down link), the less time intermittently is necessary, often can not send signaling at this by single numerical value group at intermittence time.The distinctive signaling information of described system can be realized the transmission of binary message, and this binary message can utilize independent signaling to define described switching time of point better, and can not influence most of transmission channels.
In a kind of advantageous modification of the present invention, except second subgroup of numerical value group that transmitted, that be used for signaling in first frequency band, also come the distinctive signaling information of system of transmission frequency duplex mobile radio system at interval through the frequency-duplex of described up direction (up link) and down direction (down link) by second frequency band.At this, described frequency-duplex for example can number send signaling by intrinsic duplex at interval, and this corresponding signaling had both included channel, included the frequency-duplex interval that is used for up direction (up link) and down direction (down link) again.In the GSM mobile radio system, only known so far fixing frequency-duplex at interval.On the contrary, the Duplex Spacing of variation is to utilize the channel in numerical value group's so far first subgroup to determine.
Therefore utilize the present invention can keep the frequency-duplex interval that changes, and control up direction (up link) and down direction (down link) dividually, so that transmission is complementary with the desired data rate of agreement as well as possiblely at different business.
Also come to tell about in detail the present invention with reference to the accompanying drawings by embodiment below.Wherein:
Fig. 1 shows the channel of numerical value group in the existing GSM mobile radio system and this numerical value group's first subgroup,
Fig. 2 shows the layout of the interaction capacity between GSM mobile radio system and following mobile radio system.
Fig. 1 shows numerical value group ARFCN, and it includes the channel that is used to distribute the channel that has the GSM mobile radio system now as first subgroup.This is in and has comprised channel 0～124GSM, 975～1023EGSM (expansion GSM) and 512～885DCS (GSM1800) in this first subgroup.Still unappropriated second subgroup N=130～250 can be utilized for subscriber board and send additional controlled function signaling.Other possibility of second subgroup is element 250～512 and 885～975.Be meant the controlled function of the channel allocation that exceeds the GSM mobile radio system herein.That is to say, utilize the element of second subgroup, be not as number directly using channel by channel distribution so far, but do not use these channels with the form of additional control function by original purposes.So the element among the second subgroup N for example can start and switches to the UMTS mobile radio system.
Figure 2 illustrates the layout that is used for following mobile radio system.At this, subscriber board MS both can be a travelling carriage, also can be static wireless user's end.Subscriber board MS keeps communicating by letter with base station BS through channel F.Base station BS for example links to each other with telephone network PSTN through network N W, or links to each other with the internet through gateway.
In this embodiment, subscriber board MS and base station BS both include reception and the emitter that is used for GSM and CDMA.As shown in Figure 2, subscriber board (being static subscriber's platform herein) also can only comprise a reception and an emitter that is used for GSM.This reception and emitter that is used for GSM and CDMA can be to realize in a base station BS or in a plurality of base station BSs that selectively separating in the base station, like this, under one situation of back, a base station BS is only supported the GSM mobile radio system, and another base station BS is only supported cdma system.
Between subscriber board MS and base station BS through the first channel F of GSM mobile radio system and there is a communication.The internet sends following signaling through network N W to base station BS, promptly needs the image that moves to subscriber board MS transmission.The control device ST of base station BS that is used for second subgroup-told about at Fig. 1-send additional control function signaling by described numerical value group with the form of signaling information the element of this second subgroup, for example 140 send to subscriber board MS.Subscriber board MS is identical-this signaling information of analysis with first analytical equipment that is used for the first subgroup element by the second analytical equipment AE-in this embodiment, and passes through the distinctive signaling information of system of the second channel request cdma system.If set up with cdma system and to have communicated by letter, the image that moves of transmission then.
Claims (9)
1.GSM the Signalling method in the mobile radio system, described GSM mobile radio system has at least one base station (BS) and at least one subscriber board (MS), wherein between described base station (BS) and subscriber board (MS), can use first channel (F) to come command transmitting information, utilize described signaling information to transmit at least one element of a number value group (ARFCN), and described numerical value group's first subgroup is used to distribute the channel of described GSM mobile radio system with the form of channel
It is characterized in that:
Described numerical value group's (ARFCN) second subgroup (N) is utilized for the controlled function signaling that described subscriber board (MS) sends channel allocation additional, that exceed the GSM mobile radio system.
2. the method for claim 1 is characterized in that:
Send the signaling that communicates to connect that to switch between the base station (BS) that is positioned at described subscriber board (MS) and another mobile radio system by at least one element in described second subgroup (N).
3. the method for claim 1 is characterized in that:
Start the base station (BS) that communicating to connect of described subscriber board (MS) switched in another mobile radio system by at least one element in described second subgroup (N).
4. as one of above-mentioned claim described method, it is characterized in that:
Analyze the element of second subgroup (N) of transmission in described first channel (F) and the distinctive signaling information of system that additionally in second channel, transmits, be used to trigger controlled function jointly.
5. as claim 1 or 4 described methods, it is characterized in that:
Utilize described controlled function to come some switching time between the time slot of the up direction (up link) of stipulated time duplex mobile radio system and down direction (down link).
6. as claim 1 or 4 described methods, it is characterized in that:
Utilize described controlled function to come the frequency-duplex interval of the up direction (up link) and the down direction (down link) of assigned frequency duplex mobile radio system.
7. as claim 1 or 4 described methods, it is characterized in that:
Utilize described controlled function to come the up direction (up link) of assigned frequency duplex mobile radio system and the corresponding channel of down direction (down link).
The base station of mobile radio system 8.GSM (BS), be used for sending signaling information at introversive at least one subscriber board of first channel (F) (TS), has a kind of device (GSM) that is used for transmitting at least one element of a number value group (ARFCN) by signaling information, wherein, described numerical value group's (ARFCN) first subgroup is used to distribute the channel of described GSM mobile radio system with the form of channel
It is characterized in that:
A kind of control device (ST) is used for utilizing the unit of described numerical value group's (ARFCN) second subgroup (N) usually to send the controlled function signaling of channel allocation additional, that exceed the GSM mobile radio system.
9.GSM the subscriber board of mobile radio system (MS), be used in first channel (F), receiving the signaling information of at least one base station (BS), has a kind of first analytical equipment that analysis package is contained at least one element described signaling information, numerical value group (ARFCN) that is used for, wherein said numerical value group's (ARFCN) first subgroup is used to distribute the channel of described GSM mobile radio system with the form of channel
It is characterized in that:
Second analytical equipment (AE) is used for analyzing at least one element of described numerical value group's (ARFCN) second subgroup (N), and this element is used to send the controlled function signaling of channel allocation additional, that exceed the GSM mobile radio system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999135438 DE19935438A1 (en) | 1999-07-28 | 1999-07-28 | Signaling method in a GSM mobile radio system |
| DE19935438.3 | 1999-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1365581A true CN1365581A (en) | 2002-08-21 |
Family
ID=7916352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00810935 Pending CN1365581A (en) | 1999-07-28 | 2000-07-26 | Signalling method for a mobile telephone system |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1198962A1 (en) |
| CN (1) | CN1365581A (en) |
| DE (1) | DE19935438A1 (en) |
| WO (1) | WO2001010147A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4227457B2 (en) * | 2003-05-21 | 2009-02-18 | 株式会社エヌ・ティ・ティ・ドコモ | Radio control station and broadcast information transmission method |
| US20070104133A1 (en) * | 2005-11-10 | 2007-05-10 | Chao Jim J | Method for improved frequency division duplex operation in a wireless communications system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6259915B1 (en) * | 1993-02-05 | 2001-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple hyperband mobile and base stations |
| US5884182A (en) * | 1997-05-29 | 1999-03-16 | Ericsson, Inc. | Method for responding to channel pointers using channel bands |
| DE19746894C2 (en) * | 1997-10-23 | 1999-10-28 | Siemens Ag | Method and radio communication system for data transmission |
| FI109861B (en) * | 1998-01-05 | 2002-10-15 | Nokia Corp | A method for efficiently utilizing cell broadcasting capacity |
| US6594242B1 (en) * | 1999-01-14 | 2003-07-15 | Ericsson, Inc. | Broadcasting of two generation cellular system control channel information over a three generation control channel to support roaming and handover to two generation cellular networks |
-
1999
- 1999-07-28 DE DE1999135438 patent/DE19935438A1/en not_active Ceased
-
2000
- 2000-07-26 EP EP00956103A patent/EP1198962A1/en not_active Withdrawn
- 2000-07-26 CN CN 00810935 patent/CN1365581A/en active Pending
- 2000-07-26 WO PCT/DE2000/002461 patent/WO2001010147A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE19935438A1 (en) | 2001-02-08 |
| WO2001010147A1 (en) | 2001-02-08 |
| EP1198962A1 (en) | 2002-04-24 |
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