CN100584080C - Beep-page method in wireless city region network - Google Patents
Beep-page method in wireless city region network Download PDFInfo
- Publication number
- CN100584080C CN100584080C CN200510096743A CN200510096743A CN100584080C CN 100584080 C CN100584080 C CN 100584080C CN 200510096743 A CN200510096743 A CN 200510096743A CN 200510096743 A CN200510096743 A CN 200510096743A CN 100584080 C CN100584080 C CN 100584080C
- Authority
- CN
- China
- Prior art keywords
- paging
- message
- network gateway
- access service
- service network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a page method of wireless city network, to reduce the maintenance, page range and number. Wherein, it limits the range of page group in one ASN GW; the Serving GW adds itself mark when transferring the position refresh message of base station; PC/LR receives said position refresh message and records the relationship between page group and Serving GW; when paging, based on said relationship, only sending page message to relative Serving GW.
Description
Technical field
The present invention relates to the wireless metropolitan area network technology, particularly the paging method in the wireless MAN.
Background technology
(the Institute of Electrical and Electronics Engineers of Institute of Electrical and Electronics Engineers, be called for short " IEEE ") 802 worked out different standards at the different market demands and application model in wireless domain, as be applied to PAN (Personal Area Network) (Personal Area Network, be called for short " PAN ") the IEEE802.15 standard, be applied to IEEE 802.11 standards of WLAN (wireless local area network) etc.
Wherein, IEEE 802.16 is for working out wireless MAN (Wireless metropolitan areanetworks, abbreviation " WMAN ") working group of standard establishment, this working group mainly is responsible for the air-interface standard of fixed wireless access, relate to Multi-Channel Microwave Distribution System (Microwave MultipointDistribution System, abbreviation " MMDS "), LMDS technology such as (Local MultipointDistribution System/Service are called for short " LMDS ").Since micro-wave access to global intercommunication (Worldwide Interoperability for Microwave Access joins in the establishment of 802.16e task groups and a lot of main flow equipment manufacturers of support mobility, be called for short " WiMAX ") after, IEEE 802.16e has attracted increasing sight.
The idle pulley that defines in IEEE 802.16e standard is a kind of terminal work mode in the mobile wide-band wire-less accessing system.Travelling carriage (Mobile Subscribe Station is called for short " MSS ") can enter idle pulley by sending message request.Similarly, serving BS (Serving Base Station is called for short " Serving BS ") also can initiatively require MSS to enter idle pulley by sending message.No matter be that MSS initiatively initiates to ask to enter idle pulley, or Serving BS initiatively requires MSS to enter idle pulley by sending message, MSS will finish the process of registering, entering idle pulley in official hour.
The MSS that is under the idle pulley can move in a very big zone, and MSS needn't register to the base station (Base Station is called for short " BS ") in the sub-district of roaming when roaming in this zone.Simultaneously, when MSS roams into different districts, the normal running flow process such as needn't switch, save MSS power and interface-free resources.But MSS just needs to receive the downlink broadcast service message every certain cycle, knows by broadcast whether this MSS has downlink business to send, and whether just check has paging group that this MSS is carried out paging.
The group that paging group is made up of a plurality of BS.The purpose of paging group is to constitute a continuous zone, makes that MSS does not need to send uplink service in this zone, still can judge whether to send to its downlink business by descending paging channel.In general, the size in paging group zone there is certain requirement, on the one hand must be enough greatly to guarantee that most of MSS remain in the same paging group scope in a long time; Paging group is enough little again, to guarantee that be rational a paging group to the expense that MSS carries out paging.
At present, the paging reference model under the idle pulley that defines in the WiMAX system as shown in Figure 1.This system comprises access service network gateway (Access Service Network GateWay is called for short " ASNGW "), paging controller (Paging Controller is called for short " PC "), location register network entities such as (LR).Wherein, PC is the network entity of control MSS idle pulley activity, this entity is a logic entity in present WiMAX system, with another logic entity Authenticator (authenticator) (may realize in same physical NE as a part of logic function of Authenticator) in close relations.Its physical location may be arranged in the physical NE ASN GW of WiMAX system, also may be arranged in another independently physical NE.LR is used to preserve state information, paging information and the service flow relevant information of MSS.In general, the corresponding LR logic entity of PC logic entity meeting, and two logic entities are realized in same physical NE.
According to paging model shown in Figure 1, when MSS active request on certain BS enters idle pulley, when perhaps certain BS instruct MS S enters idle pulley, by MSS and this BS, and the interacting message between this BS and the rear end network element ASN GW, this MSS of notice PC (realizing in ASN GW1) has entered idle pulley, and preserves state information, paging information and the service stream information of this MSS in the LR of correspondence.MSS can carry information that need to ask reservation when it enters idle pulley in issuing the idle-mode request message of this BS, this BS also can be provided with similar information in the idle mode request response message, be used for notifying the relevant information of MSS, and the ID of PC is notified to this MSS in that LR kept.
After MSS is entering idle pulley, need to discharge corresponding R4, R6 interface, but need to keep the Interface R3 between home agent (HA) and the Foreign Agent (FA).
In addition, under idle pulley, MSS needs periodically to initiate the position updating request idle message to the BS at current place.BS receives the location update message that sends back-end network after this message according to the ID of PC in the message to corresponding PC.PC judges according to this message whether this MSS enters new paging group, if then upgrade the corresponding information among the LR.
In the discussion of WiMAX Canada meeting, by WIMAX forum document " 050708_NWG_Functional_Decomposition_Paging-R4.doc " (Chinese can be translated into " 050708 NWG paging function decomposes edition 4 "), paging reference model and paging flow process have been had further concrete definition, and this paper quotes in full the document at this.In brief, the document is not made concrete restriction and regulation to the division of paging group, so paging group can be crossed over ASN GW; In addition, according to the description of the document, must in LR, carry out pre-configured by the corresponding relation to paging group and ASN GW.
In actual applications, there is following problem in such scheme: during paging group under data distributing is given certain terminal, PC may need beep-page message is handed down to a plurality of ASNGW of paging group under the terminal, has increased the quantity of beep-page message.In addition, in LR, must dispose the corresponding relation of paging group and ASN GW, thereby cause unnecessary configuring maintenance work.
Cause the main cause of this situation to be, as mentioned above, in the relevant prior art any restriction or regulation are not done in the division of paging group, cause paging group may cross over ASN GW.Specifically, as shown in Figure 2, paging group 1 and paging group 3 have all been striden two ASN GW.Therefore, when data distributing was given terminal in paging group 1 or the paging group 3, PC need be handed down to beep-page message a plurality of ASN GW under paging group 1 or the paging group 3, thereby has increased the quantity of beep-page message.In addition, in LR, must dispose the corresponding relation of paging group and ASN GW, this is because if there is not the corresponding relation of paging group and ASN GW among the LR, and when beep-page message need be handed down to certain terminal, PC will not know beep-page message to be handed down to which ASN GW.But well-known, the corresponding relation of configuration paging group and ASN GW also will certainly cause unnecessary configuring maintenance work in LR.
Summary of the invention
In view of this, main purpose of the present invention is to provide the paging method in a kind of wireless MAN, makes maintain configuration work reduce, and paging range and quantity reduce.
For achieving the above object, the invention provides the paging method in a kind of wireless MAN, comprise following steps:
Paging controller and location register are corresponding mobile station assigned paging group, and write down the corresponding relation of the access service network gateway of this paging group and this service when the location update message of access service network gateway received from service;
When needing paging to be in described travelling carriage under the idle pulley, described paging controller and location register are according to the described corresponding relation of record, only the access service network gateway to the service of the paging group correspondence at this travelling carriage place sends beep-page message, belongs to this travelling carriage of base station calling of this paging group in the access service network gateway by this service;
Wherein, the base station that described paging group comprised all belongs to the access service network gateway of same service.
In this external described method, described location update message carries mobile station identification and paging controller sign by described mobile-originated in this message;
When location update message from travelling carriage is received in described base station, access service network gateway by described service is initiated location update message to described paging controller and location register, carries mobile station identification, paging controller sign and Base Station Identification in this message;
The access service network gateway of described service is transmitted location update message from the base station to described paging controller and location register, and increases the sign of the access service network gateway of this service in the message of transmitting.
In this external described method, after described paging controller and location register have write down described corresponding relation, also comprise following steps:
Described paging controller and location register are replied the position to the access service network gateway of described service and are upgraded response message, carry mobile station identification, paging group sign, paging controller sign and Base Station Identification in this message;
The access service network gateway of described service is transmitted the position to described base station and is upgraded response message;
Described base station is replied the expression position to described travelling carriage and is upgraded successful positions renewal response message, carries paging group sign and paging controller sign in this message;
Described base station also the access service network gateway by described service in turn to described paging controller and location register to reply the position to upgrade acknowledge message.
In this external described method, before sending beep-page message, the access service network gateway to described service also comprises following steps:
When network need be when travelling carriage sends data, home agent sends to data the Foreign Agent of travelling carriage place network;
If described travelling carriage is in idle condition, then described Foreign Agent sends the message that requirement is obtained this mobile station related information and this travelling carriage is carried out paging to the paging controller and the authenticator of this travelling carriage institute grappling, and this paging controller and authenticator respond this message.
In this external described method, be sent in the beep-page message of access service network gateway of described service and carry mobile station identification and paging group sign;
The access service network gateway of described service is searched the allocation list that sets in advance according to described paging group sign, beep-page message is transmitted to this paging group identifies pairing base station, by these base stations at the broadcast paging messages of eating dishes without rice or wine, the travelling carriage that the described mobile station identification of paging is specified.
In this external described method, described paging controller and location register are realized in same physical entity as a part of logic function of authenticator.
In this external described method, described base station belongs to one or more paging groups simultaneously.
In this external described method, what write down in the corresponding relation of described paging group and the access service network gateway of service is the sign of the access service network gateway of paging group sign and corresponding service.
In this external described method, described wireless MAN uses the micro-wave access to global intercommunication technology.
By relatively can finding, the main distinction of technical scheme of the present invention and prior art is, the scope of paging group is limited in the ASN GW.Serving GW adds the sign of self when the location update message of repeating base station, PC/LR receives the corresponding relation of record paging group and Serving GW behind this location update message.Only initiate beep-page message according to this corresponding relation when needing paging to the pairing Serving GW of paging group.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly optimizes and the perfect division and the paging flow process of paging group.
After application the present invention is to the newly-increased restrictive condition of paging group scope, the only possible corresponding ASN GW of paging group, so that PC/LR when the location update message of receiving from Serving GW automatically the corresponding relation of record Serving GW and paging group become possibility, thereby can finally cancel prior art must dispose paging group and ASN GW corresponding relation in LR requirement, in message flow, solve the problem of paging range automatically.Automatically the corresponding relation that generates paging group and Serving GW can guarantee the correctness of corresponding relation, and efficient improves greatly with respect to manual configuration.In the prior art, because possible corresponding a plurality of ASN GW of paging group, so even PC/LR receives the location update message from a Serving GW, can not guarantee not comprise in the corresponding paging group other ASNGW, so necessary manual configuration causes workload possibility big, that make mistakes also bigger.
Because the scope of paging group is limited in the ASN GW, the efficient of paging has improved so that paging range and quantity reduce in institute.
Description of drawings
Fig. 1 is the paging reference model of WiMAX in the prior art;
Fig. 2 is the signal group when paging group is striden ASN GW in the prior art;
Fig. 3 illustrates the position new technological process more in the paging method in the wireless MAN according to an embodiment of the invention;
Fig. 4 illustrates the paging flow process in the paging method in the wireless MAN according to an embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
At first need explanation, defined the zone that comprises a plurality of BS, i.e. a paging group in the present invention.In this paging group, the location update message of MSS can send among the PC/LR of this MSS grappling by same ASN GW, but difference is, the present invention sets paging group can not cross over ASN GW, in other words, when an ASN GW had comprised a Paging Group ID, other ASN GW can not comprise identical Paging Group ID.But one of ordinary skill in the art can be understood, and under this setting, same BS still can be in a plurality of paging groups.
Fig. 3 illustrates the position new technological process more in the paging method in the wireless MAN according to an embodiment of the invention.As shown in the figure, at first, in step 301, MSS initiates the position renewal by send " RNG REQ " message to Serving BS, carries MSS ID (ID of travelling carriage) and PC ID (ID of paging controller) in this message.
Then,, after Serving BS receives the location update message of MSS, initiate position updating request " LU Request " message to PC/LR, carry MSS ID in this message, BSID and PC ID by ServingGW in step 302.
After this, in step 303, Serving GW transmits position updating request " LU Request " message to PC/LR, and increases Serving GW ID cell in the message of transmitting.A part of logic function that PC/LR can be used as logic entity Authenticator (authenticator) realizes in same physical entity.
In step 304, after PC/LR receives position updating request,, note the residing Serving GW of MSS id information according to the ServingGW ID information source of carrying in this message.Because the BS that accepts to upgrade MSS initiation position may belong to a plurality of paging groups, therefore, here be that MSS distributes a suitable paging group ID.PC/LR upgrades response message " LU Response " to Serving GW feedback position then, carries MSS ID, PGID, PCID and BSID in this response message.
Serving GW id information of noting and paging group ID have formed the corresponding relation between Serving GW and the paging group.This correspondence can only be passed through manual configuration in the prior art, and just can realize automatically after having used technical scheme of the present invention.This is because the present invention has increased restrictive condition newly to the paging group scope, paging group only may corresponding ASN GW, and institute becomes possibility so that PC/LR writes down the corresponding relation of Serving GW and paging group automatically when the location update message of receiving from Serving GW.Automatically the corresponding relation that generates paging group and Serving GW can guarantee the correctness of corresponding relation, and efficient improves greatly with respect to manual configuration.In the prior art, because possible corresponding a plurality of ASN GW of paging group, so even PC/LR receives the location update message from a Serving GW, can not guarantee not comprise in the corresponding paging group other ASN GW, so necessary manual configuration causes workload possibility big, that make mistakes also bigger.
After this, in step 305, Serving GW transmits the position to Serving BS and upgrades response message " LU Response ".
In step 306, Serving BS replys " RNG_RSP " message to MSS, shows that the position upgrades successfully, wherein, carries PGID, PCID information in " RNG_RSP " message.
In step 307, Serving BS replys the position to PC/LR and upgrades acknowledge message " LU Confirm ", shows that correlated process completes successfully.
After this, Serving GW transmits the position and upgrades acknowledge message " LU Confirm " to PC/LR, and PC/LR finally finishes the positional information of upgrading MSS after receiving this message.
Fig. 4 illustrates the paging flow process in the paging method in the wireless MAN according to an embodiment of the invention.As shown in the figure, at first, in step 401, when network need directly send to FA (AGW) with downlink data (Downlink Data) by HA when the MSS that is in idle pulley (IDLE attitude) sends data.
After this, in step 402, FA finds that the MSS that will receive data is in the IDLE attitude, just sends the PC/Authenticator of " MSS Info Req " message to the MSS grappling, requires to obtain the MSS relevant information and this MSS is carried out paging.Should comprise MSID and pagingind in " MSS Info Req " message.
Then, in step 403, PC/Authenticator returns " MSS Info Rsp " message and gives FA, carries MSID in the message, and relevant session information.
In step 404, the ServingASN GW id information of record when PC/Authenticator upgrades in the position according to MSS sends beep-page message " Paging Announce " to Serving GW, carries MSS ID and PG ID (paging group sign) in this message.
After this, in step 405, Serving GW searches allocation list according to PG ID, and beep-page message " Paging Announce " is forwarded among the pairing BS of paging group (Paging Group), requires in these BS the specified MSS of MSS ID to be carried out paging.
At last, in step 406, BS is at the broadcast paging messages of eating dishes without rice or wine " Paging Announce ".Because the present invention is limited in the scope of paging group in the ASN GW, the efficient of paging has improved so that paging range and quantity reduce in institute.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (9)
1. the paging method in the wireless MAN is characterized in that, comprises following steps:
Paging controller and location register are corresponding mobile station assigned paging group, and write down the corresponding relation of the access service network gateway of this paging group and this service when the location update message of access service network gateway received from service;
When needing paging to be in described travelling carriage under the idle pulley, described paging controller and location register are according to the described corresponding relation of record, only the access service network gateway to the service of the paging group correspondence at this travelling carriage place sends beep-page message, belongs to this travelling carriage of base station calling of this paging group in the access service network gateway by this service;
Wherein, the base station that described paging group comprised all belongs to the access service network gateway of same service.
2. the paging method in the wireless MAN according to claim 1 is characterized in that, described location update message carries mobile station identification and paging controller sign by described mobile-originated in this message;
When location update message from travelling carriage is received in described base station, access service network gateway by described service is initiated location update message to described paging controller and location register, carries mobile station identification, paging controller sign and Base Station Identification in this message;
The access service network gateway of described service is transmitted location update message from the base station to described paging controller and location register, and increases the sign of the access service network gateway of this service in the message of transmitting.
3. the paging method in the wireless MAN according to claim 2 is characterized in that, after described paging controller and location register have write down described corresponding relation, also comprises following steps:
Described paging controller and location register are replied the position to the access service network gateway of described service and are upgraded response message, carry mobile station identification, paging group sign, paging controller sign and Base Station Identification in this message;
The access service network gateway of described service is transmitted the position to described base station and is upgraded response message;
Described base station is replied the expression position to described travelling carriage and is upgraded successful positions renewal response message, carries paging group sign and paging controller sign in this message;
Described base station also the access service network gateway by described service in turn to described paging controller and location register to reply the position to upgrade acknowledge message.
4. the paging method in the wireless MAN according to claim 3 is characterized in that, also comprises following steps before the access service network gateway to described service sends beep-page message:
When network need be when travelling carriage sends data, home agent sends to data the Foreign Agent of travelling carriage place network;
If described travelling carriage is in idle condition, then described Foreign Agent sends the message that requirement is obtained this mobile station related information and this travelling carriage is carried out paging to the paging controller and the authenticator of this travelling carriage institute grappling, and this paging controller and authenticator respond this message.
5. the paging method in the wireless MAN according to claim 4 is characterized in that, is sent in the beep-page message of access service network gateway of described service and carries mobile station identification and paging group sign;
The access service network gateway of described service is searched the allocation list that sets in advance according to described paging group sign, beep-page message is transmitted to this paging group identifies pairing base station, by these base stations at the broadcast paging messages of eating dishes without rice or wine, the travelling carriage that the described mobile station identification of paging is specified.
6. according to the paging method in each described wireless MAN in the claim 1 to 5, it is characterized in that described paging controller and location register are realized in same physical entity as a part of logic function of authenticator.
7. the paging method in the wireless MAN according to claim 1 is characterized in that described base station belongs to one or more paging groups simultaneously.
8. the paging method in the wireless MAN according to claim 1 is characterized in that, what write down in the corresponding relation of described paging group and the access service network gateway of service is the sign of the access service network gateway of paging group sign and corresponding service.
9. according to the paging method in each described wireless MAN in the claim 1 to 5,7,8, it is characterized in that described wireless MAN uses the micro-wave access to global intercommunication technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510096743A CN100584080C (en) | 2005-08-24 | 2005-08-24 | Beep-page method in wireless city region network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510096743A CN100584080C (en) | 2005-08-24 | 2005-08-24 | Beep-page method in wireless city region network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1921684A CN1921684A (en) | 2007-02-28 |
| CN100584080C true CN100584080C (en) | 2010-01-20 |
Family
ID=37779205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510096743A Expired - Fee Related CN100584080C (en) | 2005-08-24 | 2005-08-24 | Beep-page method in wireless city region network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100584080C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272318B (en) * | 2007-03-20 | 2011-11-30 | 中兴通讯股份有限公司 | Method for preventing false resource release in tracing section updating or switching course |
| CN101127668B (en) * | 2007-09-12 | 2010-12-29 | 中兴通讯股份有限公司 | Method for perfecting transaction processing in access network process |
| US8200254B2 (en) | 2007-12-24 | 2012-06-12 | Zte Corporation | Method for improving paging success ratio in broad bandwith wireless communication system |
| CN101500233A (en) * | 2008-01-31 | 2009-08-05 | 华为技术有限公司 | Paging method, household base station, household base station gateway and communication system |
| CN101635992B (en) * | 2008-07-21 | 2012-12-19 | 中兴通讯股份有限公司 | Method for sending page message |
| CN101932040B (en) * | 2009-06-26 | 2014-01-01 | 华为技术有限公司 | Paging processing method, communication device and communication system |
| WO2011097814A1 (en) * | 2010-02-11 | 2011-08-18 | 华为技术有限公司 | Message routing method, service gateway and communication system thereof |
-
2005
- 2005-08-24 CN CN200510096743A patent/CN100584080C/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| 802.16e Part16:Air Interface for Fixed and MobileBroadband Wireless Access Systems Amendment 2:Physical and Medium Access Control Layers forCombined Fixed and Mobile Operation in Licensed Bandsand Corrigendum 1. IEEE Computer Society and the IEEE Microware Theoryand Techniques Society.IEEE standard for local and metropolitan area networks. 2006 |
| 802.16e Part16:Air Interface for Fixed and MobileBroadband Wireless Access Systems Amendment 2:Physical and Medium Access Control Layers forCombined Fixed and Mobile Operation in Licensed Bandsand Corrigendum 1.IEEE Computer Society and the IEEE Microware Theoryand Techniques Society.IEEE standard for local and metropolitan area networks. 2006 * |
| WiMAX组网技术与解决方案. 刘宏春.中兴通讯技术，第11卷第2期. 2005 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1921684A (en) | 2007-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1980466B (en) | Paying group network and terminal place renewing method | |
| KR100957355B1 (en) | System and method for fast paging in a wireless mobile communication system based on internet protocol | |
| US8219117B2 (en) | Method of paging a mobile terminal | |
| CN100584080C (en) | Beep-page method in wireless city region network | |
| CN101199215B (en) | System and method for paging and location update in a network | |
| EP2073563B1 (en) | Method and apparatus for supporting handover of heterogeneous network paging terminal equipments | |
| KR101206432B1 (en) | Method for paging in broadband wireless communication system | |
| CN101043698B (en) | Method for paging terminal of idle mode | |
| CN102415160A (en) | Method for providing connection type information and method for controlling radio resource of home (E)NODEB | |
| CN101262692B (en) | A method and wireless communication system for processing group mobility | |
| CN101043741B (en) | Network-exit processing method of terminal under idle mode | |
| KR20040036474A (en) | Method and system for providing improved roaming service | |
| KR100875425B1 (en) | Method for location update and idle mode termination of broadband wireless access system | |
| CN101043700A (en) | Method for paging terminal under idle mode | |
| KR100966052B1 (en) | Method for setting paging group in indoor Wibro system | |
| CN100502586C (en) | Method for renewing mobile station paging-information in WiMAX system | |
| KR101073935B1 (en) | Apparatus and method for location management of terminal in a generic access network | |
| CN101064948B (en) | Method for reducing paging zone and paging user equipment | |
| KR101080556B1 (en) | Method for assigning paging information in broadcast wireless access system | |
| CN101047946B (en) | Network reaccess procedure leaded by network | |
| CN101282270B (en) | Method for initiating mobile terminal into idlesse mode for network side in wireless MAN | |
| KR100939355B1 (en) | System and method for idle mode control in wireless communication system | |
| CN100428836C (en) | A method for transmitting packet data service to terminal | |
| CN100373957C (en) | A wireless local telephone system and method for realizing roaming | |
| CN101860848A (en) | Method and system for providing services to user equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20140824 |
|
| EXPY | Termination of patent right or utility model |