CN101258768B - Method and arrangement for optimizing the operational times and cell exchange performance of mobile terminals - Google Patents
Method and arrangement for optimizing the operational times and cell exchange performance of mobile terminals Download PDFInfo
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Abstract
The invention relates to a method and to an arrangement for optimising the operational times and cell change performance of mobile terminals in a mobile communication network having adjacent radio cells. The mobile terminal temporarily stores network specific characteristics for adjacent shaft cells which are not suitable for cell exchange when the mobile communication network is in operation and it uses said characteristics as decision criterion for cell exchange, and said information is used, in particular, to exclude said adjacent cells from additional radio-technical measurements and identification procedures. By implementing the terminal behaviour according to the inventive method, it is possible to significantly increase the operational times and the cell exchange performance of a mobile terminal in specific situations and to improve the service to a mobile radio user.; The inventive device can also be used for mobile terminals according to GSM- or UMTS-Standard, and also for other radio network technology (for example, wireless LAN (W-LAN), cdma2000, WiMAX, WiBro, enhanced UTRAN, etc.).
Description
Technical field
The operating time and the sub-district performance of handoffs that the present invention relates to be used for portable terminal carry out optimized method and apparatus, as it during cell mobile communication systems is used, for example according to GSM standard or UMTS standard.
Background technology
In according to GSM standard and cellular mobile radio network according to the UMTS standard, as 3GPP[www.3gpp.org] defined, for UMTS (URA_PCH, CELL_PCH and CELL_FACH), in so-called idle pulley or under the particular state of connection mode, switch by realize the sub-district based on the sub-district handoff algorithms of mobile wireless device.Switch the sub-district that is equally applicable to packet-based GPRS.Switch for this sub-district, radio net is notified possible adjacent cell by the so-called radio channel (BCCH) of corresponding terminal.
Virtual network operator is responsible for controlling the adjacent cell that is launched.Wherein, also can comprise another wireless access technology (GSM, UMTS, CDMA2000) or a plurality of possible proximity relations of the adjacent cell of frequency (for example for UMTS) can be launched.The expansion of existing mobile wireless technology can also make can be on the wireless channel of for example UMTS open other technologies (for example WLAN, WiMAX etc.) [DE10302404A1].
Below the introduction of prior art is related generally to application according to GSM standard and UMTS standard.According to the 3GPP standard, mobile radio terminal is responsible for constantly or with the adjacent cell of the period measurement configuration that limits, starts in better sub-district aspect the wireless technology so that possible sub-district switched.In [3GPP TS 45.008],, and defined the details of this requirement for the UMTS wireless mobile apparatus at [3GPP TS25.304, TS 25.133 and TS 25.331] for the GSM mobile wireless device has defined the details of this requirement.Technical specification noted earlier has also described when carry out little bent what standard of switching and must satisfying possible Target cell, switches so that allow reality to carry out the sub-district by mobile radio terminal.
In addition, this technical specification also defines also carries out any processing after switch the sub-district, for example for the mobile radio terminal among the PRC connection mode state CELL_PCH, carry out so-called CELL UPDATE process in the UMTS system.
The front only relates to the radio part (AS: Access Layer) of cellular mobile radio network to the description of prior art.
Be positioned at other processing and the requirement of radio net core network (CN) proposition afterwards for the performance of mobile radio terminal: core network or radio net (idle pulley is to connection mode) are according to the mobile management of the condition managing mobile wireless device of mobile radio terminal.According to the term to this in the technical standard of 3GPP is " mobile management " (MM: " Non-Access Stratum " mobile management in (NAS)).In order to be moved by the core layer management, cellular mobile radio system is divided into so-called lane place (LA) and route district (RA).
If to core network registration (" attached " process), then the position of mobile radio terminal is known for the core network with lane place granularity to mobile radio terminal first.For being that mobile radio terminal determined (voice) calls out that (travelling carriage is called: MTC), CS (circuit switching) core network one is so-called mobile switching centre (MSC)-carry out paging in whole lane place here, and called mobile radio terminal responds it with the process [3GPP TS24.008] of definition.
Connect for data, use the notion in route district (RA) towards grouping (PS).This mobile management principle is suitable with the lane place principle, but it is by (SGSN) monitoring for core network element-" the gateway service contact of determining towards the data communication of grouping ".In [3GPP TS 23.060], describe rule and process in detail.
Both being used for another basic principle that CS (MSC) also is used for PS (SGSN) core network is, on granularity LA or RA, monitor moving of mobile radio terminal respectively, and mobile radio terminal must be notified performed switching to corresponding core network element when LA or RA switching.This process is called as location area updating (LAU) and Routing Area Update (RAU).
In mobile radio system according to GSM standard or UMTS standard, also there is such possibility, promptly core network stops the visit (NAS) of mobile radio terminal to ad-hoc location or route district.For this reason, core network may be refused the position or the Routing Area Update of mobile radio terminal, and wherein it announces reason for rejection to mobile radio terminal.This method is defined in [3GPP TS24.008], and is called as the Location Registration refusal.
[3GPP TS 24.008] also defined a large amount of reasons for rejection and consequent consequence and to the requirement of mobile radio terminal.
Aspect the mobile radio terminal after LAU refusal the example of desired process be included in and carry out PLMN selection (searching for new network provider (PLMN)) when receiving reason #13, when receiving refusal, in another location/route district, search for another adjacent cell with reason #14 or #15, etc.Details is referring to [3GPP TS 24.008].
According to the 3GPP standard, core network also influences the performance of mobile radio terminal in the radio net when selecting potential adjacent objects sub-district to the refusal of location area updating:
According to TS 25.304 and TS 45.008, mobile radio terminal only allows just to select when adjacent cell satisfies particular requirement this sub-district to be used for the sub-district switching.For example, the sub-district that is selected as the candidate cell of potential sub-district switching must belong to the PLMN of current use (promptly having the PLMN sign identical with the PLMN sign of current area), the characteristics of this respect are " reciprocity PLMN ", (ePLMN), it allows mobile radio terminal to switch to another PLMN[TS24.008 down as the adjacent cell that belongs to current PLMN at specific].
For other that switch to Target cell must condition be: Target cell does not allow to be prevented from (forbidding the sub-district), do not allow for operator and keep (only UMTS) (operator keeps the sub-district), and do not allow in existence and " the district's tabulation of roaming disabled position " [TS 25.304].This tabulation comprises wherein switches all Location Area Identification of once refusing location area updating for the sub-district of initiating.
The special weak point of current prior art is, no matter be according to GSM standard or according to the UMTS standard, mobile radio terminal does not all have in current area to obtain the enough information about adjacent cell, measures and sign with the radiotechnics that suppresses the potential target sub-district.Whether also satisfy the requirement that switch the sub-district in order to understand adjacent cell (it is apprised of all mobile radio terminals by the radio channel (BCCH) of current area as the potential sub-district that is used for switching the sub-district by means of the sub-district gravity treatment), mobile radio terminal is must be with it after measuring the potential target sub-district synchronous and read its radio channel (BCCH), so that extract necessary information (the PLMN ID of Target cell, relevant position and route district, " illegal state ", other sub-district marks ...).
Because capacity specially avoids this information to launch this information in original original cell.Notice, in current prior art, switch that the radio channel by the sub-district submits necessary information, and this information is identical for all mobile radio terminals that are arranged in this sub-district for the sub-district that mobile radio terminal is controlled.
Therefore, according to current prior art, may not provide different neighbor information to different mobile radio terminals by radio channel.
The qualification that shall also be noted that potential adjacent cell may be different/specific (some mobile radio terminals are limited to visit specific location area, and other are not limited) for each mobile radio terminal.Latter event mainly is that the requirement by Virtual network operator limits, and can differently be provided with in different mobile wireless networks.
Document US 2002/0123348A1 discloses a kind of method of using in wireless network, this wireless network comprises the proper wireless network by the user equipment unit use of work, and accepted by the second user radio network, wherein this method comprises that addressing is as limited wireless area, wherein each wireless area of the first user radio network has the competition sub-district, and the user equipment unit refusal that second user network of unaccepted wireless area is accepted uses trial.
The document has following defective, promptly in order to avoid the unnecessary measurement to adjacent cell, does not store the information about the further measurement of the potential target sub-district that prevents the adjacent cell that is configured of specific objective sub-district here.
Document EP 1286561A1 discloses a kind of method of selecting new geographical transmission region that connects for mobile wireless, wherein wireless network inserts the list information that receives one or more transmission regions, it comprises mobile wireless and connects business or do not comprise business, the information that is used to ask newly to transmit area business that inspection receives is wherein determined the selection of geographical transmission region according to the information that is received.
The document has following defective equally, i.e. the information that inserts for the potential wireless network of avoiding unnecessary message transmission, do not store avoiding further request and transmitting wireless connections.
Summary of the invention
The object of the present invention is to provide a kind of method to optimize the operating time and the sub-district performance of handoffs of portable terminal, this method makes different mobile radio terminals to use and stores different neighbor information (it provides by radio channel) and be used for the sub-district gravity treatment.
According to the present invention, this purpose is that the method by the feature with claim 1 realizes.
Favourable execution mode of the method according to this invention and improvement provide in the corresponding dependent claims.
The present invention is mainly based on the quantity of the performed measurement of the mobile radio terminal that reduces work, and the radiotechnics that therefore especially suppresses to be used to identify the sub-district that is not suitable as the candidate cell that switches the sub-district is measured and process.
The invention provides remarkable improvement, can when adjacent cell having been checked that its qualification as the potential target sub-district is tested and having determined that it is not suitable as Target cell for this mobile radio terminal, avoid the radiotechnics of this adjacent cell is measured according to the mobile radio terminal of GSM standard or UMTS standard because the invention enables to prior art.
Target cell is unsuitable for the reason of mobile radio terminal and introduces in the prior art.
In execution mode, method of the present invention relates generally to and is applied to following situation, and promptly Target cell is unsuitable for the sub-district and switches, because core network has been refused the visit to this sub-district of position or Routing Area Update.
But execution mode also can be applied to following situation as an alternative, and promptly Target cell for example belongs to another PLMN that Target cell is labeled as " prevention " or " being preserved for Virtual network operator ".
Description of drawings
Introduce according to exemplary embodiment of the present invention below.
Starting point is the National roaming agreement that has in a country between two mobile wireless network operators of different PLMN sign according to an embodiment of the invention.
Client's " roaming " that this National roaming agreement for example allows the B of operator (PLMN B) does not provide the zone (namely utilizing the mobile wireless business of the A of operator) of the A of operator (PLMN A) of the mobile wireless supply of oneself to the B of operator wherein. In addition, this embodiment also stipulates, for example the A of operator provides according to GSM standard and according to the mobile wireless network of UMTS standard. This operator disposes its GSM network like this, namely so that not only supported GSM but also supported the mobile radio terminal of UMTS in the zone of the UMTS supply that has the A of operator, automatically to switch according to UMTS, and needn't mobile radio subscriber intervention (by the cell reselection based on UE). This structure shows in Fig. 1.
Embodiment
By be arranged at the UMTS network on the GSM network the zone GSM network emission about the neighbor information of UMTS network support so-called double mode mobile wireless device (bimodulus UE)-promptly not only supported GSM but also support the equipment of UMTS-automatic switchover.Should be noted that as long as the UMTS network quality is enough good for the typical parametrization of current combination GSM/UMTS network, all double mode UE observe the sub-district gravity treatment (promptly switching based on the sub-district of UE) from GSM to UMTS by this.
Exemplary National roaming agreement between A of operator and the B is for example also stipulated, the client of the B of operator allows to use the whole GSM network of the A of operator, but it does not have the UMTS part (having the double mode UE that supports in principle the visit of UMTS even be arranged in the client of the B of operator of the network of the A of operator) of the network of right access operator A.Therefore, the requirement of exemplary National roaming agreement regulation prevents the visit of client B (or only the specific part among these clients) to the UMTS network of the A of operator.
For example, the mobile radio terminal of the client by suppressing the B of operator is attempted realizing to the visit of the UMTS network of the A of operator.In order to realize it, the A of operator disposes its GSM/UMTS network like this, promptly make the sub-district of GSM and UMTS network lay respectively at different lane place (LA), and location area updating is all initiated in the each switching from GSM to UMTS and from UMTS to GSM.
The core network of the A of operator now can be for example the visit trial of the client by forbidding B with corresponding refusal sign indicating number refusal location area updating (LAU) in the lane place of using the UMTS technology (or only subclass).
The present realization of this refusal process allows for example according to source (for example by means of IMSI) difference mobile radio terminal.Promptly can allow the client access of A, and the client of refusal B.
Therefore, prior art allows do not have the UMTS access authorization by means of the refusal of LAU at the UMTS of A network refusal client B-.Though because by the allocating cell handoff parameter, the double mode mobile radio terminal of all supports also has the sub-district of initiating from GSM to UMTS in the zone of UMTS supply in operator and switches, but the mobile radio terminal that has only the A of operator is allowed to access destination UMTS lane place, switch so the mobile radio terminal of the unaccepted B of operator must be abandoned the sub-district, and remain in the original GSM sub-district.Here should be noted that by LAU and refuse the visit first time of objective network (the UMTS network of the A of operator) is attempted.For the mobile radio terminal of the unaccepted B of operator, further failure is attempted in visit, is comprised in " the LA tabulation is forbidden in roaming " because this LA of refusal wherein takes place.
But prior art requires these mobile radio terminals to continue to follow sub-district handoff parameter in the original GSM sub-district, and continues radiotechnics ground and measure potential target sub-district (comprise the A of operator be configured UMTS sub-district).These requirements of definition in GSM technical specification [TS45.008] and technical specification [3GPP TS 25.304, TS25.133 and TS25.331].
In brief, even be to require still will be according to this Target cell of the allocating and measuring on the radio channel of current area under forbidding the situation of the visit of certain potential target sub-district for the major defect of prior art.
Under described situation, the mobile radio terminal of the B of operator returns in the GSM sub-district that remains on the A of operator, still according to the requirement of above-mentioned standard, still must measure the UMTS Target cell that is unsuitable for this mobile radio terminal in radiotechnics ground.
This requirement has tangible negative effect for the operating time of mobile radio terminal, because unnecessary measurement means the additional energy consumption of mobile radio terminal.
Therefore, the method according to this invention is advised, remembers to visit the mobile radio terminal of specific adjacent cell (for example because the LAU in this sub-district was rejected).Therefore, except " the LA tabulation is forbidden in roaming " above-mentioned, mobile radio terminal is also kept another tabulation, wherein for example write down cell ID (sub-district ID) or other features that clearly identify adjacent cell, wherein LAU failure, perhaps mobile radio terminal had been measured but can not be used to the sub-district that switch the sub-district, because it belongs to the LA that is included in " the LA tabulation is forbidden in roaming ".The example of feature for example is: the frequency of adjacent cell under the GSM situation, the BSIC of neighboring GSM cell, the scrambled code of adjacent cell under the UMTS situation, the carrier frequency under the WLAN situation, " SSID " under the WLAN situation etc.The method according to this invention is for identifying without any restriction.
Therefore, utilize institute's canned data, mobile radio terminal can avoid measuring the measurement of the adjacent cell that is not suitable as the candidate cell that switches the sub-district, therefore, by avoiding unnecessary measurement, prolong its operating time by restriction to the adjacent cell of actual capabilities.
Therefore, under said circumstances, switch the client's of B mobile wireless device is followed UMTS in the GSM of the A of operator network sub-district, but (for the unallowed UMTS LA of the equipment of B) receives the LAU refusal here because restrict access, and switch to GSM subsequently again.
Utilize the method according to this invention, all UMTS sub-districts (belong to and refuse/forbid LA) are rejected in measurement subsequently now, do not switch because allow.
The method according to this invention provides a special advantage, for the mobile radio terminal under the UMTS supply forbidden that remains on the A of operator, therefore can avoid fully for unsuccessful necessity measurement of switching to the sub-district of UMTS at all.
For in addition (UMTS) lane place of after changing the visit prerequisite, allowing visit to stop now, the method according to this invention advises, mobile radio terminal is only remembered access reject certain hour (for example 24 hours or be closed up to it).
Suppressing after mobile radio terminal to the measurement of inappropriate Target cell or identification procedure closes closed procedure, this mobile radio terminal recovers measurement or the identification procedure to this Target cell again after it is unlocked again.
This is applicable to that also mobile radio terminal carries out the situation that switch the sub-district of another sub-district.
Otherwise, still refuse the visit of mobile radio terminal after the protocol changes between A of operator and B, because it oneself can not recover the measurement (unless satisfying the requirement of " the LA tabulation is forbidden in roaming " of defined deletion in [TS 24.008]) to the original object sub-district to (UMTS) LA.
Application of the present invention not only can be used for the portable terminal according to GSM or UMTS standard, but also can expand to other radio net technology (WiMAX, WiBro strengthens UTRAN etc. for WLAN (W-LAN) for example, CDMA2000).
Reference numerals list
1.PLMN the client of A (double mode UE)
2.PLMN the client of B (double mode UE)
3.PLMN?A(UMTS)-LA2
4.PLMN?A(GSM)-LA1
5. sub-district gravity treatment (reselecting the sub-district)
6.PLMN B does not have right to access to UMTS
Claims (17)
1. one kind is used for optimizing the operating time of the mobile communications network mobile radio terminal with contiguous wireless area and the method for sub-district performance of handoffs, the mark specific to network of the mobile radio terminal contiguous wireless area that temporary transient storage can not be used when working in mobile communications network wherein, and described mark specific to network is used for the sub-district as criterion to be switched, and for fear of unnecessary measurement to contiguous wireless area, storage is about the information of specific objective sub-district, wherein said information is used for avoiding this specific objective sub-district when further measuring the contiguous wireless area that disposes by wireless channel, it is characterized in that, mobile radio terminal is for fear of the unnecessary sign to contiguous wireless area, storage is about the information of specific Target cell, and uses it for and avoid this specific Target cell when contiguous wireless area by the wireless channel configuration of further sign.
2. method according to claim 1 is characterized in that, mobile radio terminal is worked according to one of following wireless standard: IEEE 802.11, WiMAX, WiBro.
3. method according to claim 1, it is characterized in that, according to the mobile radio terminal of GSM or UMTS standard will belong to its therein by refusal " location area updating " the contiguous wireless area of unaccepted lane place get rid of outside further measurement or identification procedure.
4. method according to claim 1, it is characterized in that, will belong to by refusal " Routing Area Update " the contiguous wireless area in unaccepted route district according to the mobile radio terminal of GSM or UMTS standard and get rid of outside further measurement or identification procedure.
5. according to claim 3 or 4 described methods, it is characterized in that the contiguous wireless area that mobile radio terminal will be comprised in as unaccepted wireless area in " the district's tabulation of roaming disabled position " is got rid of outside further measurement or identification procedure.
6. according to each described method in the claim 1 to 2, it is characterized in that, after the contiguous wireless area of the mark of identification emission disabled " SSID " form or contiguous access point are unavailable, it is got rid of outside further measurement or identification procedure according to the mobile radio terminal of wlan standard IEEE 802.11.
7. method according to claim 6 is characterized in that, contiguous access point is launched on the radio channel of another radiotechnics.
8. method according to claim 1, it is characterized in that, will be identified as the contiguous wireless area that is unsuitable for switching the sub-district owing to Target cell is classified as " forbidding the sub-district " of prevention according to the mobile radio terminal of GSM or UMTS standard and get rid of outside further measurement or identification procedure.
9. method according to claim 1, it is characterized in that, will be identified as the contiguous wireless area that is unsuitable for switching the sub-district owing to Target cell is classified as " operator keeps the sub-district " that is preserved for operator's terminal according to the mobile radio terminal of GSM or UMTS standard and get rid of outside further measurement.
10. method according to claim 1, it is characterized in that, will be unsuitable for the sub-district and switch and be identified as the contiguous wireless area that is unsuitable for switching the sub-district and get rid of outside further measurement or identification procedure owing to Target cell is classified as according to the mobile radio terminal of GSM or UMTS standard.
11. method according to claim 1, it is characterized in that, will be unsuitable for the sub-district and switch and be identified as the contiguous wireless area that is unsuitable for switching the sub-district and get rid of outside further measurement or identification procedure owing to Target cell is classified as according to the mobile radio terminal of the known standard except that GSM or UMTS.
12. method according to claim 1 is characterized in that, has suppressed the mobile radio terminal of the measurement of unaccommodated Target cell through recovering the measurement to this Target cell after the certain hour again.
13. method according to claim 1 is characterized in that, has suppressed mobile radio terminal to the measurement of unaccommodated Target cell or identification procedure and recover measurement or identification procedure to this Target cell again after being closed and opening.
14. method according to claim 1 is characterized in that, has suppressed the measurement of unaccommodated Target cell or the mobile radio terminal of identification procedure are switched to measurement or the identification procedure that recovers again afterwards in another sub-district this Target cell in the sub-district.
15. method according to claim 1, it is characterized in that, suppressed the mobile radio terminal of the measurement of unaccommodated Target cell or identification procedure is recovered measurement or identification procedure to these Target cells again receive the specific messages that is used to measure these Target cells from mobile communications network after.
16. method according to claim 1, wherein said method is carried out on mobile radio terminal by means of the computer program with program code.
17. method according to claim 1, wherein said method relates to the operating time that is used for optimizing the mobile communications network mobile radio terminal with contiguous wireless area and the equipment of sub-district performance of handoffs, at least one memory and/or data processing unit wherein are set in mobile radio terminal, and described memory and/or data processing unit store and handle the performed measurement and the data of identification procedure when working in mobile communications network.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005034760.6 | 2005-07-21 | ||
| DE102005034760 | 2005-07-21 | ||
| DE102005034750.9 | 2005-07-21 | ||
| DE102005034750 | 2005-07-21 | ||
| DE102005036583.3 | 2005-08-01 | ||
| DE102005036583A DE102005036583A1 (en) | 2005-07-21 | 2005-08-01 | Method and arrangement for optimizing the operational readiness times and cell change performance of mobile terminals |
| PCT/DE2006/001203 WO2007009433A1 (en) | 2005-07-21 | 2006-07-12 | Method and arrangement for optimising the operational times and cell change performance of mobile terminals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101258768A CN101258768A (en) | 2008-09-03 |
| CN101258768B true CN101258768B (en) | 2011-06-01 |
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| CN2006800304759A Active CN101258768B (en) | 2005-07-21 | 2006-07-12 | Method and arrangement for optimizing the operational times and cell exchange performance of mobile terminals |
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| WO2015165090A1 (en) * | 2014-04-30 | 2015-11-05 | 华为技术有限公司 | Data transmission method and apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1286561A1 (en) * | 2001-08-21 | 2003-02-26 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for location area updating in cellular communications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1286561A1 (en) * | 2001-08-21 | 2003-02-26 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for location area updating in cellular communications |
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| ES2353400T3 (en) | 2011-03-01 |
| CN101258768A (en) | 2008-09-03 |
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