CN100396152C - Discrimination for service wireless network sub-system transfer by user apparatus - Google Patents
Discrimination for service wireless network sub-system transfer by user apparatus Download PDFInfo
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- CN100396152C CN100396152C CNB2004100972423A CN200410097242A CN100396152C CN 100396152 C CN100396152 C CN 100396152C CN B2004100972423 A CNB2004100972423 A CN B2004100972423A CN 200410097242 A CN200410097242 A CN 200410097242A CN 100396152 C CN100396152 C CN 100396152C
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Abstract
The present invention relates to the third generation of mobile communication technology, particularly to a method for user equipment to identify the transfer of a service radio network subsystem. Thus, UE can compactly and determinately judge whether the transfer of an SRNS occurs so as to determine whether an RLC needs to be stopped or rebuilt. Whether an RNC ID in an IE 'New U-RNTI' in a transfer type message is consistent with a current SRNC ID in the UE is adopted for judging whether the transfer of the SRNS occurs in the present invention.
Description
Technical field
The present invention relates to the 3G (Third Generation) Moblie technology, particularly in the broadband CDMA system subscriber equipment to the decision method of service wireless network sub-system transfer.
Background technology
After mobile communication has experienced first generation analogue system and second generation cellular digital mobile system, just develop at present towards the 3-G (Generation Three mobile communication system) that with Wideband Code Division Multiple Access (WCDMA) (Wideband Code Divided Multiple Access is called for short " WCDMA ") technology is representative.
Universal Mobile Telecommunications System (Unversal Mobile Telecommunications System, be called for short " UMTS ") be the 3rd generation cooperative programme (the 3rd generation Partnership Project, abbreviation " 3GPP ") standard of the third generation mobile system that formulates, its principle is with wireless access network (RadioAccess Network, be called for short " RAN ") and core network (Core Network, be called for short " CN ") clearly separate, so that network can carry various types of service, thereby satisfy user's demand.
Those of ordinary skill in the art will be appreciated that, the WCDMA system is mainly by subscriber equipment (UserEquipment, abbreviation " UE "), UMTS Terrestrial radio access network (UMTS Terrestrial RadioAccess Network is called for short " UTRAN ") and CN form.Fig. 1 is the structural representation of WCDMA system.As shown in the figure, mainly form by UE 10, UTRAN 11, CN 12, external network 13.Wherein UE 10 adopts the Uu interface to be connected with 11 of UTRAN, and UTRAN 11 adopts the Iu interface to be connected with 12 of CN.
UE 10 is subscriber terminal equipments, mainly comprises RF processing unit, baseband processing unit, protocol stack module and application layer software module etc.UE 10 by the Uu interface and the network equipment carry out data interaction, for the miscellaneous service function that the user provides circuit domain and packet domain, comprise normal speech, data communication, mobile multimedia, internet application etc.Those of ordinary skill in the art should be understood that UE 10 is various equipment with functionality mobile communication, as mobile phone, individual palmtop PC (Personal DigitalAssistant is called for short " PDA "), notebook etc.
UTRAN 11 is responsible for handling all and wireless function associated, mainly by base station node B and radio network controller (Radio Network Controller is called for short " RNC ") composition.Wherein Node B comprises radio receiving-transmitting unit and Base-Band Processing parts, and its Iub interface by standard links to each other with RNC, mainly finishes the processing of Uu interface physical layer protocol.RNC mainly finishes functions such as connecting foundation and disconnection, switching, mergings of grand diversity, RRM control, adopts the Iur interface continuous between different RNC.In actual use, a common RNC and one or more Node B form a RNS (Radio Network Subsystem is called for short " RNS "), and whole UTRAN 11 is made up of a plurality of RNS.
Fig. 2 is the internal structure schematic diagram of a RNS.As shown in the figure, mainly comprise RNC 20 and Node B 21.RNC 20 adopts the lub interface to link to each other with 21 of Node B.Those of ordinary skill in the art will be appreciated that, in actual use, RNS can be divided into two classes: Serving Radio Network System (Service RadioNetwork Subsystem is called for short " SRNS ") and drift RNS (Drift Radio NetworkSubsystem is called for short " DRNS ").
Wherein, SRNS is used to manage the wireless connections between UE and the UTRAN, is the Iu interface terminating point of this UE.Serving RNC among the SRNS (Service Radio Network Controller, be called for short " SRNC ") is used to realize that the RAB parameter is to radio resource management functions such as the mapping of transport channel parameters, handover, open Loop Power control.A UE who links to each other with UTRAN has and only has a SRNS.
DRNS is the RNS that UE used except SRNS, and its corresponding RNC is called Drift Radio Network Controller (Drift Radio Network Controller is called for short " DRNC ").A UE who links to each other with UTRAN can not have DRNS, one or more DRNS can be arranged yet.
In actual use, when the position of UE changed or resource need be optimized configuration, the current SRNS that requirement will be connected to the UE correspondence of UTRAN switched to another one SRNS, and this just is called the migration of SRNS.Those of ordinary skill in the art should be understood that the SRNS migration mainly can be divided into static migrating and follow two kinds of migrations.
Wherein, the condition that static migrating takes place is that the UE that is connected to UTRAN exists DRNC, and (RNC need tell UE to upgrade the RLC entity, and the new U-RNTI of notice UE to need not the UE participation in whole transition process substantially, but the channel of air interface does not change), therefore be also referred to as the migration that UE does not relate to.Fig. 3 is the process schematic diagram of static migrating.As shown in the figure, mainly form by CN 30, SRNS31, DRNS32, UE 33.
Before static migrating took place, UE 33 linked to each other with DRNS 32 by the Uu interface, and DRNS32 is connected to SRNS 31 by the Iur interface, and SRNS 31 is connected to CN 30 by the Iu interface.
After static migrating took place, system directly was converted to new SRNS with DRNS 32, discharged the connection of Iur interface, simultaneously the Iu interface shift was arrived new SRNC.UE 34 is connected to CN 30 by new SRNC.
Owing in WCDMA, have CS and PS territory simultaneously, therefore, these two territories need be moved simultaneously if UE has when connection with two territories.
Follow migration to comprise that direct-cut operation follows migration and forward direction switching to follow migration.Direct-cut operation follow migration be meant UE from the SRNC direct-cut operation to Target RNC, simultaneously the process of migration takes place in the Iu mouth.Because transition process needs UE to participate in, therefore be called the migration that UE relates to again.Fig. 4 is the process schematic diagram that direct-cut operation is followed migration.As shown in the figure, mainly by CN 40, RNS 41, SRNS 42, UE 43 forms.
Before the generation direct-cut operation was followed migration, UE 43 was connected to SRNS 42 by the Uu interface, and SRNS42 is connected to CN 40 by the Iu interface.
After the generation direct-cut operation was followed migration, system changed RNS 41 into new SRNS, and the Iu interface shift is to new SRNS, and UE 43 is connected to new SRNS by the Uu interface and inserts CN 40 again.
Forward direction switches follows migration to comprise that cell update follows migration and URA to follow migration, and it is mainly changed by the UE position and causes, so follows the processing procedure of migration similar with direct-cut operation.
Those of ordinary skill in the art should be understood that it is that network side is initiated that above-mentioned static migrating and direct-cut operation are followed migration, and it is that the UE side is initiated that migration is followed in the forward direction switching.The air-interface information that realizes static migrating mainly is UTRAN migration information (UTRAN Mobility Information) message; Realize that direct-cut operation follows the air-interface information of migration to mainly contain radio bearer and set up (Radio Bearer Setup) message, radio bearer and reshuffle (Radio Bearer Reconfiguration) message, radio bearer and discharge that (RadioBearer Release) message, transmission channel are reshuffled (Transport Channel Reconfiguration) message, physical channel is reshuffled (Physical Channel Reconfiguration) message; Realize that forward direction switches the air-interface information of following migration and mainly contains cell update affirmation (Cell Update Confirm) message and URA renewal affirmation (URA Update Confirm) message.This paper is referred to as migration class message with above-mentioned various message.
Because after SRNS moves, Radio Link control (the Radio Link Control of UE side, abbreviation " RLC ") sequence number is different with new SRNS RLC sequence number, in order to guarantee that UE RLC sequence number is identical with new SRNS RLC sequence number, UE RLC need be stopped or rebuilding, this operates in when UE recognizes SRNS generation migration and triggers.Therefore need at first discern the SRNS migration.
Prior art mainly adopts the prescribed manner of 3GPP to handle to the identification of SRNS migration.
3GPP is described below for the processing method of reconfiguration message:
1.If?the?received?reconfiguration?message?included?the?IE“Downlink?countersynchronisation?info”；Or?if?the?reconfiguration?message?is?a?Radio?BearerReconfiguration?and?the?IE“New?U-RNTI”is?included：
2.If?the?variable?PDCP_SN_INFO?is?empty：
Configure?the?corresponding?RLC?entity?for?all?AM?and?UM?radio?bearersand?AM?and?UM?signalling?radio?bearers?except?RB2?to“stop”.
Else
Configure?the?RLC?entity?for?signalling?radio?bearers?RB1，RB3?and?RB4?to“stop”；
Configure?the?RLC?entity?for?UM?and?AM?radio?bearers?for?which?theIE“PDCP?SN?Info”is?not?included?to“stop”.
3.Re-establish?RB2；
(Chinese can be translated into:
1. if the reconfiguration message that receives comprises information element (Information Element, be called for short " IE ") " Downlink counter synchronisation info ", if the reconfiguration message that perhaps receives is for comprising the radio bearer reconfiguration message of IE " New U-RNTI ":
2. if variable PDCP_SN_INFO is empty
All affirmation modes that then will be except that RB2 (Affirm Mode is called for short " AM "), Unacknowledged Mode (Un-affirm Mode is called for short " UM ") radio bearer and AM, the pairing RLC physical arrangements of UM Signaling Radio Bearer are for stopping;
Otherwise the RLC physical arrangements of signaling being transmitted radio bearer RB1, RB3, RB4 correspondence is for stopping, and the pairing RLC physical arrangements of AM UM radio bearer that will not comprise IE " PDCP SN Info " is for stopping.
3. rebuild RB2.
)
3GPP is described below for the processing procedure of UTRAN migration information message:
1.If?the?received?UTRAN?Mobility?Information?message?included?the?IE“Downlink?counter?synchronisation?info”：
2.If?the?variable?PDCP_SN_INFO?is?empty：
Configure?the?corresponding?RLC?entity?for?all?AM?and?UM?radio?bearersand?AM?and?UM?signalling?radio?bearers?except?RB2?to“stop”.
Else
Configure?the?RLC?entity?for?signalling?radio?bearers?RB1，RB3?and?RB4?to“stop”；
Configure?the?RLC?entity?for?UM?and?AM?radio?bearers?for?which?theIE“PDCP?SN?Info”is?not?included?to“stop”.
3.Re-establish?RB2；
(Chinese can be translated into:
1. if the UTRAN migration information message that receives comprises IE " Downlink countersynchronisation info ":
2., then all AM UM radio bearers and AM UM signal except that RB2 are transmitted the pairing RLC physical arrangements of radio bearer for stopping if variable PDCP_SN_INFO is empty; Otherwise the RLC physical arrangements of signal being transmitted radio bearer RB1, RB3, RB4 correspondence is for stopping, and the pairing RLC physical arrangements of AM UM radio bearer that will not comprise IE " PDCP SN Info " is for stopping.
3. rebuild RB2.
)
3GPP is described below the processing procedure of cell update message or URA updating message:
1.If?the?received?Cell?Update?Confirm?or?URA?Update?Confirm?messageincluded?the?IE“Downlink?counter?synchronisation?info”：
2.If?the?variable?PDCP_SN_INFO?is?empty：
Configure?the?corresponding?RLC?entity?for?all?AM?and?UM?radio?bearersand?AM?and?UM?signalling?radio?bearers?except?RB2?to“stop”.
Else
Configure?the?RLC?entity?for?signalling?radio?bearers?RB1，RB3?and?RB4?to“stop”；
Configure?the?RLC?entity?for?UM?and?AM?radio?bearers?for?which?theIE“PDCP?SN?Info”is?not?included?to“stop”.
3.Re-establish?RB2；
(Chinese can be translated into:
1. if the cell update that receives is confirmed or URA renewal acknowledge message comprises IE " Downlinkcounter synchronisation info ":
2. if variable PDCP_SN_INFO is empty:
Then all AM UM radio bearers and AM UM signaling except that RB2 are transmitted the pairing RLC physical arrangements of radio bearer for stopping;
Otherwise the RLC physical arrangements of signaling being transmitted radio bearer RB1, RB3, RB4 correspondence is for stopping, and the pairing RLC physical arrangements of AM UM radio bearer that will not comprise IE " PDCP SN Info " is for stopping.
3. rebuild RB2.
)
By top description process as can be known, do not use IE " New U-RNTI " judges that UE RLC stops or rebuilding because of there being IE " Downlinkcounter synchronisation info " except radio bearer reconfiguration message, other move class message and all can judge with IE " Downlink counter synchronisation info ".Radio bearer is set up in addition, radio bearer discharges, transmission channel is reshuffled, the physical channel reconfiguration message also is to judge with IE " Downlink counter synchronisation info ".
In actual applications, there is following problem in such scheme: owing to IE " Downlink countersynchronization info " is actual is a PDCP (Packet Data CollectionProtocol, be called for short " PDCP ") sequence number, when the radio bearer reciprocal exchange of business or signaling, need not to carry this IE, if add this IE in order to judge the SRNS migration purely, then can cause the cell redundancy; In addition, IE in the radio bearer reconfiguration message " New U-RNTI " comprises service radio network temporary sign symbol (Service Radio Network Temporary Identifier, be called for short " S-RNTI ") and service wireless network controller identifier (Radio Network Controller Identity, be called for short " RNC ID "), S-RNTI changes if RNC ID is constant, and UE also can think by mistake and need stop or rebuilding RLC.
Cause the main cause of this situation to be, adopting has the sign of ambiguity or redundant information to judge whether SRNS moves, and may cause UE false judgment SRNS migration or interface signaling message to complicate.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of subscriber equipment discrimination for service wireless network sub-system transfer, makes UE can judge succinctly and definitely whether the SRNS migration has taken place, so that whether decision needs to stop or rebuilding RLC.
For achieving the above object, the invention provides a kind of method of subscriber equipment discrimination for service wireless network sub-system transfer, comprise following steps:
When the described subscriber equipment of A is received the migration class message that comprises information element " New U-RNTI " from air interface, obtain information element " New U-RNTI " wherein, and judge that the radio network controller identifier in this information element is whether identical with service wireless network controller identifier in this subscriber equipment, if difference then judge that migration has taken place SRNS Serving Radio Network Subsystem.
Also comprise following steps, when described subscriber equipment is received migration class message from air interface, obtain the SRNS Serving Radio Network Subsystem judgement conclusion whether deportation moves by other method, and compare with the judgement conclusion of described steps A, if two are judged that conclusion is consistent, confirm that then migration has taken place described SRNS Serving Radio Network Subsystem.
Described other method can be to judge according to " Downlink counter synchronisation info " or the situation of change of " New U-RNTI ".
Described migration class message is a kind of in the following message:
Radio bearer is set up the message of stipulating in the 3GPP agreements such as message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, Universal Mobile Telecommunications System land radio access web migration information message, cell update acknowledge message or URA renewal acknowledge message that can move.
When judging that migration has taken place SRNS Serving Radio Network Subsystem, described subscriber equipment stops or rebuilding the wireless link control of this user equipment side.
Described method is applied to broadband CDMA system.
By relatively can finding, the main distinction of technical scheme of the present invention and prior art is, adopt among the interior IE " New U-RNTI " of migration class message RNC ID whether with UE in the consistent SRNS of judgement of current SRNC ID whether migration has taken place.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly adopts RNC ID to judge the migration of SRNS, can effectively reduce the migration of subscriber equipment false judgment, also need not to adopt different criterions according to difference migration class message.Owing to all comprise above-mentioned two signs in all migration class message, therefore when not having PS professional, need not to carry " Downlink counter synchronizationinfo ", can effectively reduce the air interface signaling size, reduce the signaling redundancy.
Description of drawings
Fig. 1 is the structural representation of WCDMA system;
Fig. 2 is the internal structure schematic diagram of a RNS;
Fig. 3 is the process schematic diagram of static migrating;
Fig. 4 is the process schematic diagram that direct-cut operation is followed migration;
Fig. 5 is a process chart of realizing that according to an embodiment of the invention UE identification SRNS moves in the same CN in the WCDMA system;
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.
Because setting up in message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, UTRAN migration information message, cell update acknowledge message, the URA renewal acknowledge message, radio bearer all comprises the IE " U-RNTI " that expression is connected to the UE of UTRAN.Those of ordinary skill in the art should be understood that IE " New U-RNTI " is 32, and its high 12 is S-RNTI, its low 20 RNC ID.RNC ID is Public Land Mobile Nerwork (PublicLand Mobile Network, abbreviation " PLMN ") unique identifier of RNS in, when sending the SRNS migration, RNC ID can change, and therefore can whether change to determine whether UE RLC needs to stop or upgrading by judging RNC ID.
Fig. 5 is a process chart of realizing that according to an embodiment of the invention UE identification SRNS moves in the same CN in the WCDMA system, as shown in the figure.
At first enter step 510, UE receives the migration class message that the Uu interface sends, and this migration class message can be that radio bearer is set up wherein a kind of of message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, UTRAN migration information message, cell update acknowledge message, URA renewal acknowledge message.
Enter step 520 then, judge whether the RNCID of the IE " New U-RNTI " in the migration class message that receives changes, if change, then enter step 530, otherwise enter step 540.Those of ordinary skill in the art should be understood that the judgement that RNC ID is changed is that RNC ID that will newly receive and the former RNC ID that originally is stored among the UE compared, if identical then think and do not change, otherwise think and change.
In step 530, UE RLC stops or rebuilding.
In step 540, UE RLC keeps original state constant.
In addition, when judging the sign of migration, also can carry out validity checking with RNC ID as if use IE " Downlink counter synchronization info " conduct.
In a preferred embodiment of the present invention, can UE adopting method in the prior art (for example judging according to IE " Downlink counter synchronisation info " or the situation of change of IE " New U-RNTI ") whether SRNC migration is taken place earlier makes one and judges conclusion, by the present invention method is proposed again--make second by the RNC ID among the IE " New U-RNTI " and judge conclusion, judge conclusion more once with two, if unanimity then previous judgement conclusion is legal, can carry out corresponding subsequent processing, stop or reconstruction etc. as UE RLC, if inconsistent, then can carry out corresponding error and handle according to setting in advance.
The main benefit of carrying out validity checking with method of the present invention is can compatible current agreement.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (5)
1. the method for a subscriber equipment discrimination for service wireless network sub-system transfer is characterized in that, comprises following steps:
When the described subscriber equipment of A is received the migration class message that comprises information element " New U-RNTI " from air interface, obtain information element " New U-RNTI " wherein, and judge that the radio network controller identifier in this information element is whether identical with service wireless network controller identifier in this subscriber equipment, if difference then judge that migration has taken place SRNS Serving Radio Network Subsystem.
2. the method for subscriber equipment discrimination for service wireless network sub-system transfer according to claim 1, it is characterized in that, also comprise following steps, when described subscriber equipment is received migration class message from air interface, obtain the SRNS Serving Radio Network Subsystem judgement conclusion whether deportation moves by other method, and judge that with described steps A conclusion compares, if two are judged that conclusions are consistent, confirm that then migration has taken place described SRNS Serving Radio Network Subsystem;
Wherein, other method of the described acquisition SRNS Serving Radio Network Subsystem judgement conclusion whether deportation moves is:
Comprise information element " descending variable synchronizing information " in the described migration class message, and variable PDCP_SN_INFO is empty, judges that then migration has taken place SRNS Serving Radio Network Subsystem;
Or
Comprise information element " New U-RNTI " in the described migration class message, and variable PDCP_SN_INFO is empty, judges that then migration has taken place SRNS Serving Radio Network Subsystem.
3. the method for subscriber equipment discrimination for service wireless network sub-system transfer according to claim 1 and 2 is characterized in that, described migration class message is:
Radio bearer is set up message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, Universal Mobile Telecommunications System land radio access web migration information message, cell update acknowledge message or universal mobile telecommunications system grounding wireless access network registration area and is upgraded acknowledge message.
4. the method for subscriber equipment discrimination for service wireless network sub-system transfer according to claim 3, it is characterized in that, when judging that migration has taken place SRNS Serving Radio Network Subsystem, described subscriber equipment stops or rebuilding the wireless link control of this user equipment side.
5. the method for subscriber equipment discrimination for service wireless network sub-system transfer according to claim 1 is characterized in that, described method is applied to broadband CDMA system.
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| CNB2004100972423A CN100396152C (en) | 2004-11-18 | 2004-11-18 | Discrimination for service wireless network sub-system transfer by user apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101409907B (en) * | 2007-10-08 | 2010-11-10 | 华为技术有限公司 | Method and equipment for improving migration success rate |
| CN101547493B (en) * | 2008-03-24 | 2012-04-04 | 中兴通讯股份有限公司 | Method for indicating resolution mode of radio network controller identifier |
| CN101547422B (en) * | 2008-03-24 | 2013-12-04 | 中兴通讯股份有限公司 | Method for indicating resolution mode of radio network controller identifier |
| CN101547494B (en) * | 2008-03-24 | 2012-05-09 | 中兴通讯股份有限公司 | Method for indicating resolution mode of radio network controller identifier |
| CN101588613B (en) * | 2008-05-22 | 2011-05-04 | 华为技术有限公司 | Method, controller and system for user equipment |
| CN101594662B (en) * | 2008-05-28 | 2012-04-04 | 中兴通讯股份有限公司 | Indication method of radio network controller-identification (RNC-ID) analytic mode |
| GB2473882A (en) * | 2009-09-29 | 2011-03-30 | Nec Corp | Allocation of temporary identifiers to mobile devices connecting to home node base stations |
| CN102223621B (en) | 2010-04-13 | 2016-03-30 | 华为技术有限公司 | A kind of method and system of distribution network temporary mark |
| WO2012034271A1 (en) * | 2010-09-14 | 2012-03-22 | 中兴通讯股份有限公司 | Method and system for acquiring radio network controller identifiers |
| CN103313330A (en) * | 2012-03-09 | 2013-09-18 | 鼎桥通信技术有限公司 | Method and device for controlling switching failure in inter-system switching |
| WO2015163625A1 (en) * | 2014-04-24 | 2015-10-29 | Lg Electronics Inc. | Method for establishing layer-2 entities for d2d communication system and device therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1129340C (en) * | 1999-03-10 | 2003-11-26 | 诺基亚网络有限公司 | Identifier allocation method |
| CN1468013A (en) * | 2002-06-21 | 2004-01-14 | 华硕电脑股份有限公司 | Method for determining rlc entity re-establishment during srns relocation |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129340C (en) * | 1999-03-10 | 2003-11-26 | 诺基亚网络有限公司 | Identifier allocation method |
| CN1468013A (en) * | 2002-06-21 | 2004-01-14 | 华硕电脑股份有限公司 | Method for determining rlc entity re-establishment during srns relocation |
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