CN103237342A - Cross identity registration method for co-group users of time division-long term evolution-based (TD-LTE-based) public network and cluster - Google Patents
Cross identity registration method for co-group users of time division-long term evolution-based (TD-LTE-based) public network and cluster Download PDFInfo
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Abstract
The invention discloses a cross identity registration method for co-group users of a time division-long term evolution-based (TD-LTE-based) public network and cluster and relates to the field of wireless communication, in particular to a cross identity registration method for the co-group users of the public network and the cluster. The invention aims to solve the problem that cross identity registration cannot be realized under a TD-LTE public network and a TD-LTE private network. A method for switching users registered in the public network to users registered in the cluster is characterized in that switching is realized under the conditions that the users complete bidirectional authentication with a cluster application (APP) by a bearing surface and user group information and the priority are synchronous. A method for switching the users registered in the cluster to the users registered in the public network is characterized in that the switching is realized under the conditions that a cluster network is detached but registration statuses of the users in the public network are kept. The cross identity registration method for the co-group users of the TD-LTE-based public network and cluster is suitable for the cross identity registration of the co-group users of the TD-LTE-based public network and cluster.
Description
Technical field
The present invention relates to wireless communication field, be specifically related to a kind of public network cluster intersection identity registration method of user on the same group.
Background technology
TD-LTE public network group service system relies on the TD-LTE system, is an important branch of new generation broadband wireless communication system, has comparatively broad application prospect.User terminal can be operated in public network system and the private network system in system simultaneously, and can change between each mode of operation according to service needed.
And at present, the user also can't be implemented in the intersection identity registration under TD-LTE public network and the private network.
Summary of the invention
The present invention is the problem that can't be implemented in the intersection identity registration under TD-LTE public network and the private network at present in order to solve, thereby a kind of public network cluster based on TD-LTE intersection identity registration method of user on the same group is provided.
Based on the public network cluster of TD-LTE user's intersection identity registration method on the same group,
The user is registered to the identity registration of cluster network and is realized by following steps:
Step 1, user initiatively initiate the registration request of trunking communication, and adhere to solicited message to the base station transmission;
Describedly adhere to IMSI (international mobile subscriber identify label) or the GUTI (user's temporary mark) that solicited message comprises the user, also comprise user network ability (UE network capacity) information, packet data network type (PDN Type) information, type of attachment (Attach Type) information, Non-Access Stratum sequence number (NAS sequence number) information, Non-Access Stratum (NAS-MAC) information and selecteed network indication RRC parameter;
Adhere to solicited message in step 2, the base station receiving step one, and obtain the MME (mobile management entity) of user under current according to adhering to selected network indication RRC parameter in the solicited message; The base station sends the MME cluster module that return information belongs to this user;
Comprise control information, the selected network information that has Attach Request (adhering to request) information and residential quarter TAI (the tranking area identity that receives information in the described return information, follow the tracks of little distinctive emblem)+ECGI (E-UTRAN cell global identifier, E-UTRAN, global little distinctive emblem) information;
MME cluster module under step 3, this user sends the user and adheres to information, and this user adheres to information and is forwarded to the cluster management center through PDN-GW (Packet Data Network-GateWay, grouped data network gateway);
Described user adheres to IMSI or the GUTI that information comprises the user, and the sign network type of service network (SN ID);
Step 4, cluster management center be according to user's IMSI or GUTI, and seek corresponding permanent key K; If judged result is for being that then execution in step 41; If judged result is that then execution in step four or two;
Step 4 one, calculate Ciphering Key according to key K; And this Ciphering Key is sent to MME cluster module under this user; And execution in step five;
Comprise RAND (random number), AUTN (authentication token in the described Ciphering Key, authentication-tokens), XRES (XRES, Expected Response expect response) value (XRES relatively reaches the purpose of key agreement by the response value RES that returns with the user) and key K ASME information;
KASME is the total key that produces Non-Access Stratum and Access Layer key, by Authentication Response Authentication data response AV is passed to MME afterwards, XRES (XRES, Expected Response expect response) value (XRES relatively reaches the purpose of key agreement by the RES that returns with the user);
Step 4 two, cluster management center are sent refusal and are adhered to information, and are transmitted to the MME cluster module under this user, and the MME cluster module under this user sends refusal and adheres to information to this user; End is based on the public network cluster of TD-LTE user's intersection identity registration on the same group;
MME cluster module under step 5, this user receives the Ciphering Key that send at the cluster management center, keeps the XRES value in this Ciphering Key, and sends authentication information to this user;
Described authentication information comprises authentication-tokens AUTN and random number RA ND;
After step 6, this user receive this authentication information, the freshness of the AUTN value in the authentication verification vector at first, if the verification passes, then execution in step 61; If checking is not passed through, then execution in step six or two;
Step 6 one, this user finish the authentication to the cluster management center, and calculate response value RES according to the random number RA ND value in the Ciphering Key and authentication-tokens AUTN value, and this RES value is sent to the affiliated MME cluster module of this user; And execution in step six one by one;
Step 6 one by one, the MME cluster module under this user receives this RES value, and compare with XRES value in the Ciphering Key, and judge whether unanimity of these two values, if unanimity, then execution in step 622; If inconsistent, then execution in step six or two;
Step 6 two or two; The authentication to this user is finished at the cluster management center; And execution in step seven;
Step 6 two, finish based on the public network cluster of TD-LTE user's intersection identity registration on the same group;
MME cluster module under step 7, HSS (Home Subscriber Server, home subscriber server) and this user is interacting user information each other;
Described mutual user profile comprises user's group information, id information and user signing contract information;
Step 8, judge the contextual information whether this user's activation is arranged in the MME cluster module under this user, if judged result is for being, execution in step Aug. 1st then; If judged result is that then execution in step nine;
MME cluster module under step Aug. 1st, this user sends deletion session request (Delete Session Request) signal, this deletion session request (Delete Session Request) signal is sent to PDN-GW by S-GW (Serving-Gateway, gateway); And execution in step nine;
Step 9, PDN-GW send to the MME cluster module under this user by S-GW and answer response Delete Session Request signal, and send public network beared information answer signal;
Behind answer response deletion session request (the Delete Session Request) signal and public network beared information answer signal in the MME cluster module receiving step nine under step 10, this user, the MME cluster module under this user is deleted the contextual information of this user's activation; And distribute EBI sign for this user, and session request (Create Session Request) signal is created in transmission, this is created session request (Create Session Request) signal and is forwarded to the cluster management center through S-GW (Serving-Gateway, gateway) and PDN-GW; Simultaneously, the MME cluster module under this user keeps the public network beared information answer signal that receives;
Step 11, cluster management center send Create Session Response (establishment conversational response) response signal by PDN-GW and S-GW to the MME cluster module under this user;
MME cluster module under step 12, this user sends radio bearer and sets up request signal (Initial Context Setup Response) to the base station, described radio bearer is set up and included AttachAccept (allowing to adhere to) signal in the request signal and keep the user radio beared information;
Step 13, base station are received and are received Attach Accept (allowing to adhere to) signal and keep the user radio carrying signal;
Step 14, base station are set up request signal (Initial Context Setup Response) according to radio bearer and are set up RRC and connect and reshuffle (RRC Connection Reconfiguration) signal, and to sending to this user;
Step 15, this user receive RRC and connect and to reshuffle (RRC Connection Reconfiguration) signal, and carry out resource and reconfigure, and comprise that default bearing reconfigures with the low layer parameter to reconfigure; Reconfigure finish after, this user sends out RRC and connects and reshuffle the message of finishing on SRB1 (Signalling Radio Bearers1, Signaling Radio Bearer 1);
Step 10 six, base station send the response signal that radio bearer is set up request signal (Initial Context Setup Response) to the MME cluster module under this user;
Step 10 seven, this user send UL Information Transfer message (upstream message direct transfers) signal and give the base station;
Described UL Information Transfer message (upstream message direct transfers) signal comprises Attach Complete (adhere to and finish) information and [EPS Bearer Identity (core net bearing identification), NAS sequence number (Non-Access Stratum sequence number)] message;
Step 10 eight, base station send Attach Complete (adhere to and finish) signal by up link NAS direct-sending message (Uplink NAS Transport message) to the MME cluster module under this user; After sending successfully, the MME cluster module under this user is revised as presence with this user's cluster flag bit;
Simultaneously, the MME cluster module under this user sends to colony dispatching administrative center with Attach Complete (adhere to and finish) signal, finishes this user's identity registration;
The process that the user withdraws from cluster network and turns back to public network registration is realized by following steps:
Steps A, this user send up link Non-Access Stratum transmission (Uplink NAS Transfer) message to the base station;
Described up link Non-Access Stratum transmission (Uplink NAS Transfer) message comprises attachment removal (Detach request) solicited message;
Described attachment removal information comprises IMSI and this subscriber group information of this user;
Step B, base station send up link Non-Access Stratum (the Uplink NAS Transport) signal that direct transfers to the MME cluster module under this user;
The described up link Non-Access Stratum Uplink NAS Transport signal that direct transfers comprises NAS layer Detach request signal;
MME cluster module under step C, this user is sent to PDN-GW with this user's detach request signal by S-GW;
Step D, PDN-GW receive the detach request signal, judge that according to this user's IMSI and conversation end state this user is whether on the paging flag bit; If judged result is for being, execution in step D1 then; If judged result is not, then execution in step D2;
Step D1, then stop calling to this user and execution in step E;
Attachment removal is revised as with this state of user in step D2, cluster management center, upgrades concurrent the sending to of user resources and adheres to instruction; And execution in step E;
MME cluster module under step e, this user sends solicited message to HSS;
Described request information comprises user's group information and positional information;
After the solicited message of step F, HSS receiving step E, echo reply user profile and reply group information;
Replying user profile and replying group information among the MME cluster module receiving step F under the step G, this user, and send the session request signal of this user of deletion in cluster to the cluster management center by S-GW and PDN-GW;
Session request signal in the described cluster also comprises this user's group information modification information;
Step H, cluster management center receive this session request signal, and judge whether this user's detach request is legal, if judged result is for being, and execution in step H1 then; If judged result is not, then execution in step H2;
Step H1, cluster management center change this state of user and the flag bit of this user in group, and send session deletion answer signal by PDN-GW and S-GW; And execution in step I;
Step H2, user withdraw from the cluster network failure, finish the process that this user turns back to the public network registration;
MME cluster module under step I, this user receives session deletion answer signal, and deletes this user's conversation message, and notice HSS, cancels this user's cluster position information;
Step J, HSS change the state of this user in cluster network and group, and state of user is notified this user affiliated MME cluster module after will changing;
MME cluster module under step K, this user is revised as resting state with the state of activation of this user in trunking communication, and notice HSS;
MME cluster module under the step L, this user judges whether timer is overtime, if judged result is for being, and execution in step L1 then; If judged result is not, then execution in step L2;
MME cluster module under the step L1, this user sends beared information that request recover public network by S-GW to PDN-GW according to user's log-on message in public network last time;
Described request recovers to comprise in the beared information of public network user's beared information that this user's IMSI last time kept; And execution in step M1;
MME cluster module under step L2, this user sends the establishment user by S-GW and PDN-GW and carries request signal, and carries out M2;
Step M1, PDN-GW receive the beared information that request recovers public network, examine this user's identity after, send to MME and to recover the user and carry answer signal; And execution in step N;
Step M2, PDN-GW receive the establishment user and carry request signal, and according to timer information and the user identity set up for this user, send the establishment carrying by S-GW to the MME cluster module under this user and reply; And execution in step N;
MME cluster module under the step N, this user sends out to adhere to the base station replys, and informing base station discharges the cluster wireless carrying signal, and recovers or rebuild this user's public network radio bearer signal;
After step O, base station receive that attachment removal is replied, discharged cluster wireless carrying signal and recovery or rebuilds this user's public network radio bearer signal, discharge user's cluster wireless link information then, and send the RRC reconfiguration message that this user is attached in the public network and carry out the user resources reprovision; And attachment removal replied with the RRC reconfiguration message send to this user;
After step P, this user receive that attachment removal that the base station sends is replied, according to the RRC reconfiguration message this user's terminal parameter is set, reshuffles and send reprovision to the base station after finishing and finish response message;
The response message that step Q, base station have been withdrawed from this user from cluster network and entered into public network is notified the MME cluster module under this user;
The response message that MME cluster module under the step R, this user has withdrawed from this user from cluster network by S-GW and PDN-GW and entered into public network is transmitted to the cluster management center;
MME cluster module under step S, this user sends the bearer messages that upgrades the user to S-GW and PDN-GW respectively;
Step T, S-GW and PDN-GW upgrade user's carrying respectively, and the MME cluster module under this user sends response message;
MME cluster module under step U, this user sends information to HSS, this state of user is changed into be registered in public network;
Step V, HSS send answer signal to the MME cluster module under this user, finish the identity registration of this user on public network.
When user's identity registration was carried out in the base station, MME carries out radio bearer to be upgraded, and concrete steps are:
MME cluster module under step 10 nine, this user receives radio bearer and sets up after request signal (Initial Context Setup Response) and the Attach Complete message, sends to S-GW and revises carrying request (Modify Bearer Request) signal;
Described modification carrying request (Modify Bearer Request) signal comprises eNodeB address (address, base station ...), eNodeB TEID (base station TEID) and switch indication (Handover Indication);
Step 2 ten, S-GW send the affirmation signal of revising carrying request signal (Modify Bearer Response) to the MME cluster module under this user, finish radio bearer and upgrade.
Comprise in establishment session request described in the step 10 (the Create Session Request) signal: IMSI, the TEID of MME control frame (Tunnel Endpoint Identifier, Tunnel End Point Identifier), PDN GW address (PDN Gateway address), PDN Address (distributing to user's IP address by PDN-GW), APN (Access Point Nam, access node), RAT type (radio acceess technology type, radio access technology types), Dedicated Bearer QoS (dedicated bearer service quality), PDN Type (the IP type that PDN connects), APN-AMBR (per APN Aggregate Maximum Bit Rate, the maximum polymerization bit rate of each access node), EPS Bearer dentity (core net bearing identification) and Protocol Configuration (protocol configuration) information.
Comprise in the Create Session Response response signal described in the step 11: PDN Type (PDN type), PDN Address (distributing to user's IP address by PDN-GW), user plane gateway address (Serving GW address for User Plane), user plane gateway tunnel endpoint identifier (Serving GW TEID for User Plane), core network identity sign (EPS Bearer Identity), PDN Gateway address (PDN GW addresses) and protocol configuration option (Protocol Configuration Options).
Comprise in the Accept of Attach described in the step 12 signal: APN, GUTI, PDN Type, PDN Address, TAI List (tranking area identity list follows the tracks of the residential quarter flap-list), core net bearing identification (EPS Bearer Identity), session management request (Session Management Request), protocol configuration option (Protocol Configuration Options), Non-Access Stratum sequence number (NAS sequence number).
Attach Complete information described in the step 10 seven comprises core net bearing identification (EPS Bearer Identity) and Non-Access Stratum sequence number (NAS sequence number).
Step N rebuilds in user's the radio bearer information process, and the MME cluster module under this user sends initial context and sets up request (Initial Context Setup Request) message to the base station, and default bearing is set up in request;
Described context is set up request (Initial Context Setup Request) message and is comprised that the NAS layer activates default core and hereinafter carries request (Activate default EPS bearer context request) message on the net.
The user resources reprovision comprises reprovision SRB1 and allocation radio resource among the step O, and sets up SRB2 (Signalling Radio Bearers2, Signaling Radio Bearer 2) and DRB (Data Radio Bearer, Data Radio Bearer).
The present invention is implemented in the intersection identity registration under TD-LTE public network and the private network, has guaranteed that user terminal can be operated in public network system and the private network system simultaneously according to service needed the conversion between each mode of operation in system.
Description of drawings
Fig. 1 is the intersection identity registration method principle schematic between public network user of the present invention and private network user; Fig. 2 is the schematic flow sheet that the user is registered to cluster network; Fig. 3 is that the user initiatively selects to withdraw from cluster network and turns back to the schematic flow sheet that public network is registered.
Embodiment
Embodiment one, based on the public network cluster of TD-LTE user's intersection identity registration method on the same group,
The user is registered to the identity registration of cluster network and is realized by following steps:
Step 1, user initiatively initiate the registration request of trunking communication, and adhere to solicited message to the base station transmission;
Describedly adhere to IMSI (international mobile subscriber identify label) or the GUTI (user's temporary mark) that solicited message comprises the user, also comprise user network ability (UE network capacity) information, packet data network type (PDN Type) information, type of attachment (Attach Type) information, Non-Access Stratum sequence number (NAS sequence number) information, Non-Access Stratum (NAS-MAC) information and selecteed network indication RRC parameter;
Adhere to solicited message in step 2, the base station receiving step one, and obtain the MME (mobile management entity) of user under current according to adhering to selected network indication RRC parameter in the solicited message; The base station sends the MME cluster module that return information belongs to this user;
Comprise control information, the selected network information that has Attach Request (adhering to request) information and residential quarter TAI (the tranking area identity that receives information in the described return information, follow the tracks of little distinctive emblem)+ECGI (E-UTRAN cell global identifier, E-UTRAN, global little distinctive emblem) information;
MME cluster module under step 3, this user sends the user and adheres to information, and this user adheres to information and is forwarded to the cluster management center through PDN-GW (Packet Data Network-GateWay, grouped data network gateway);
Described user adheres to IMSI or the GUTI that information comprises the user, and the sign network type of service network (SN ID);
Step 4, cluster management center be according to user's IMSI or GUTI, and seek corresponding permanent key K; If judged result is for being that then execution in step 41; If judged result is that then execution in step four or two;
Step 4 one, calculate Ciphering Key according to key K; And this Ciphering Key is sent to MME cluster module under this user; And execution in step five;
Comprise RAND (random number), AUTN (authentication token in the described Ciphering Key, authentication-tokens), XRES (XRES, Expected Response expect response) value (XRES relatively reaches the purpose of key agreement by the response value RES that returns with the user) and key K ASME information;
KASME is the total key that produces Non-Access Stratum and Access Layer key, by Authentication Response Authentication data response AV is passed to MME afterwards, XRES (XRES, Expected Response expect response) value (XRES relatively reaches the purpose of key agreement by the RES that returns with the user);
Step 4 two, cluster management center are sent refusal and are adhered to information, and are transmitted to the MME cluster module under this user, and the MME cluster module under this user sends refusal and adheres to information to this user; End is based on the public network cluster of TD-LTE user's intersection identity registration on the same group;
MME cluster module under step 5, this user receives the Ciphering Key that send at the cluster management center, keeps the XRES value in this Ciphering Key, and sends authentication information to this user;
Described authentication information comprises authentication-tokens AUTN and random number RA ND;
After step 6, this user receive this authentication information, the freshness of the AUTN value in the authentication verification vector at first, if the verification passes, then execution in step 61; If checking is not passed through, then execution in step six or two;
Step 6 one, this user finish the authentication to the cluster management center, and calculate response value RES according to the random number RA ND value in the Ciphering Key and authentication-tokens AUTN value, and this RES value is sent to the affiliated MME cluster module of this user; And execution in step six one by one;
Step 6 one by one, the MME cluster module under this user receives this RES value, and compare with XRES value in the Ciphering Key, and judge whether unanimity of these two values, if unanimity, then execution in step 622; If inconsistent, then execution in step six or two;
Step 6 two or two; The authentication to this user is finished at the cluster management center; And execution in step seven;
Step 6 two, finish based on the public network cluster of TD-LTE user's intersection identity registration on the same group;
MME cluster module under step 7, HSS (Home Subscriber Server, home subscriber server) and this user is interacting user information each other;
Described mutual user profile comprises user's group information, id information and user signing contract information;
Step 8, judge the contextual information whether this user's activation is arranged in the MME cluster module under this user, if judged result is for being, execution in step Aug. 1st then; If judged result is that then execution in step nine;
MME cluster module under step Aug. 1st, this user sends Delete Session Request information, and this Delete Session Request information is sent to PDN-GW by S-GW (Serving-Gateway, gateway); And execution in step nine;
Step 9, PDN-GW send to the MME cluster module under this user by S-GW and answer response Delete Session Request signal, and send public network beared information answer signal;
Behind the answer response Delete Session Request signal and public network beared information answer signal in the MME cluster module receiving step nine under step 10, this user, the MME cluster module under this user is deleted the contextual information of this user's activation; And distribute EBI sign for this user, and session request (Create Session Request) signal is created in transmission, this is created session request (Create Session Request) signal and is forwarded to the cluster management center through S-GW (Serving-Gateway, gateway) and PDN-GW; Simultaneously, the MME cluster module under this user keeps the public network beared information answer signal that receives;
Step 11, cluster management center send Create Session Response (establishment conversational response) response signal by PDN-GW and S-GW to the MME cluster module under this user;
MME cluster module under step 12, this user sends radio bearer and sets up request signal (Initial Context Setup Response) to the base station, described radio bearer is set up and included Attach Accept (allowing to adhere to) signal in the request signal and keep the user radio beared information;
Step 13, base station are received and are received Attach Accept (allowing to adhere to) signal and keep the user radio carrying signal;
Step 14, base station are set up request signal (Initial Context Setup Response) according to radio bearer and are set up RRC and connect and reshuffle (RRC Connection Reconfiguration) signal, and to sending to this user;
Step 15, this user receive RRC and connect and to reshuffle (RRC Connection Reconfiguration) signal, and carry out resource and reconfigure, and comprise that default bearing reconfigures with the low layer parameter to reconfigure; Reconfigure finish after, this user sends out RRC and connects and reshuffle the message of finishing on SRB1 (Signalling Radio Bearers1, Signaling Radio Bearer 1);
Step 10 six, base station send the response signal that radio bearer is set up request signal (Initial Context Setup Response) to the MME cluster module under this user;
Step 10 seven, this user send UL Information Transfer message (upstream message direct transfers) signal and give the base station;
Described UL Information Transfer message (upstream message direct transfers) signal comprises Attach Complete (adhere to and finish) information and [EPS Bearer Identity (core net bearing identification), NAS sequence number (Non-Access Stratum sequence number)] message;
Step 10 eight, base station send Attach Complete (adhere to and finish) signal by up link NAS direct-sending message (Uplink NAS Transport message) to the MME cluster module under this user; After sending successfully, the MME cluster module under this user is revised as presence with this user's cluster flag bit;
Simultaneously, the MME cluster module under this user sends to colony dispatching administrative center with Attach Complete (adhere to and finish) signal, finishes this user's identity registration;
The process that the user withdraws from cluster network and turns back to public network registration is realized by following steps:
Steps A, this user send up link Non-Access Stratum transmission (Uplink NAS Transfer) message to the base station;
Described up link Non-Access Stratum transmission (Uplink NAS Transfer) message comprises attachment removal (Detach request) solicited message;
Described attachment removal information comprises IMSI and this subscriber group information of this user;
Step B, base station send up link Non-Access Stratum (the Uplink NAS Transport) signal that direct transfers to the MME cluster module under this user;
The described up link Non-Access Stratum Uplink NAS Transport signal that direct transfers comprises NAS layer Detach request signal;
MME cluster module under step C, this user is sent to PDN-GW with this user's detach request signal by S-GW;
Step D, PDN-GW receive the detach request signal, judge that according to this user's IMSI and conversation end state this user is whether on the paging flag bit; If judged result is for being, execution in step D1 then; If judged result is not, then execution in step D2;
Step D1, then stop calling to this user and execution in step E;
Attachment removal is revised as with this state of user in step D2, cluster management center, upgrades concurrent the sending to of user resources and adheres to instruction; And execution in step E;
MME cluster module under step e, this user sends solicited message to HSS;
Described request information comprises user's group information and positional information;
After the solicited message of step F, HSS receiving step E, echo reply user profile and reply group information;
Replying user profile and replying group information among the MME cluster module receiving step F under the step G, this user, and send the session request signal of this user of deletion in cluster to the cluster management center by S-GW and PDN-GW;
Session request signal in the described cluster also comprises this user's group information modification information;
Step H, cluster management center receive this session request signal, and judge whether this user's detach request is legal, if judged result is for being, and execution in step H1 then; If judged result is not, then execution in step H2;
Step H1, cluster management center change this state of user and the flag bit of this user in group, and send session deletion answer signal by PDN-GW and S-GW; And execution in step I;
Step H2, user withdraw from the cluster network failure, finish the process that this user turns back to the public network registration;
MME cluster module under step I, this user receives session deletion answer signal, and deletes this user's conversation message, and notice HSS, cancels this user's cluster position information;
Step J, HSS change the state of this user in cluster network and group, and state of user is notified this user affiliated MME cluster module after will changing;
MME cluster module under step K, this user is revised as resting state with the state of activation of this user in trunking communication, and notice HSS;
MME cluster module under the step L, this user judges whether timer is overtime, if judged result is for being, and execution in step L1 then; If judged result is not, then execution in step L2;
MME cluster module under the step L1, this user sends beared information that request recover public network by S-GW to PDN-GW according to user's log-on message in public network last time;
Described request recovers to comprise in the beared information of public network user's beared information that this user's IMSI last time kept; And execution in step M1;
MME cluster module under step L2, this user sends the establishment user by S-GW and PDN-GW and carries request signal, and carries out M2;
Step M1, PDN-GW receive the beared information that request recovers public network, examine this user's identity after, send to MME and to recover the user and carry answer signal; And execution in step N;
Step M2, PDN-GW receive the establishment user and carry request signal, and according to timer information and the user identity set up for this user, send the establishment carrying by S-GW to the MME cluster module under this user and reply; And execution in step N;
MME cluster module under the step N, this user sends out to adhere to the base station replys, and informing base station discharges the cluster wireless carrying signal, and recovers or rebuild this user's public network radio bearer signal;
After step O, base station receive that attachment removal is replied, discharged cluster wireless carrying signal and recovery or rebuilds this user's public network radio bearer signal, discharge user's cluster wireless link information then, and send the RRC reconfiguration message that this user is attached in the public network and carry out the user resources reprovision; And attachment removal replied with the RRC reconfiguration message send to this user;
After step P, this user receive that attachment removal that the base station sends is replied, according to the RRC reconfiguration message this user's terminal parameter is set, reshuffles and send reprovision to the base station after finishing and finish response message;
The response message that step Q, base station have been withdrawed from this user from cluster network and entered into public network is notified the MME cluster module under this user;
The response message that MME cluster module under the step R, this user has withdrawed from this user from cluster network by S-GW and PDN-GW and entered into public network is transmitted to the cluster management center;
MME cluster module under step S, this user sends the bearer messages that upgrades the user to S-GW and PDN-GW respectively;
Step T, S-GW and PDN-GW upgrade user's carrying respectively, and the MME cluster module under this user sends response message;
MME cluster module under step U, this user sends information to HSS, this state of user is changed into be registered in public network;
Step V, HSS send answer signal to the MME cluster module under this user, finish the identity registration of this user on public network.
When user's identity registration was carried out in the base station, MME carries out radio bearer to be upgraded, and concrete steps are:
MME cluster module under step 10 nine, this user receives radio bearer and sets up after request signal (Initial Context Setup Response) and the Attach Complete message, sends to S-GW and revises carrying request (Modify Bearer Request) signal;
Described modification carrying request (Modify Bearer Request) signal comprises eNodeB address (address, base station ...), eNodeB TEID (base station TEID) and switch indication (Handover Indication);
Step 2 ten, S-GW send the affirmation signal of revising carrying request signal (Modify Bearer Response) to the MME cluster module under this user, finish radio bearer and upgrade.
Comprise in establishment session request described in the step 10 (the Create Session Request) signal: IMSI, the TEID of MME control frame (Tunnel Endpoint Identifier, Tunnel End Point Identifier), PDN GW address (PDN Gateway address), PDN Address (distributing to user's IP address by PDN-GW), APN (Access Point Nam, access node), RAT type (radio acceess technology type, radio access technology types), Dedicated BearerQoS (dedicated bearer service quality), PDN Type (the IP type that PDN connects), APN-AMBR (per APN Aggregate Maximum Bit Rate, the maximum polymerization bit rate of each access node), EPS Bearer dentity (core net bearing identification) and Protocol Configuration (protocol configuration) information.
Comprise in the Create Session Response response signal described in the step 11: PDN Type (PDN type), PDN Address (distributing to user's IP address by PDN-GW), user plane gateway address (Serving GW address for User Plane), user plane gateway tunnel endpoint identifier (Serving GW TEID for User Plane), core network identity sign (EPS Bearer Identity), PDN Gateway address (PDN GW addresses) and protocol configuration option (Protocol Configuration Options).
Comprise in the Accept of Attach described in the step 12 signal: APN, GUTI, PDN Type, PDN Address, TAI List (tranking area identity list follows the tracks of the residential quarter flap-list), core net bearing identification (EPS Bearer Identity), session management request (Session Management Request), protocol configuration option (Protocol Configuration Options), Non-Access Stratum sequence number (NAS sequence number).
Attach Complete information described in the step 10 seven comprises core net bearing identification (EPS Bearer Identity) and Non-Access Stratum sequence number (NAS sequence number).
Step N rebuilds in user's the radio bearer information process, and the MME cluster module under this user sends initial context and sets up request (Initial Context Setup Request) message to the base station, and default bearing is set up in request;
Described context is set up request (Initial Context Setup Request) message and is comprised that the NAS layer activates default core and hereinafter carries request (Activate default EPS bearer context request) message on the net.
The user resources reprovision comprises reprovision SRB1 and allocation radio resource among the step O, and sets up SRB2 (Signalling Radio Bearers2, Signaling Radio Bearer 2) and DRB (Data Radio Bearer, Data Radio Bearer).
The definition of part noun in the present embodiment:
(1) attaching process: attaching process is finished user (UE) in the registration of network, finishes core net to the foundation of this UE default bearing.Be the process an of necessity, the user only just can receive the service of automatic network after adhering to successfully.
(2) attachment removal process: when the user does not need maybe can not continue to be attached to the EPS network, will initiate attachment removal.Can be by triggerings such as user terminal, core net, the present invention is the initiatively process of attachment removal cluster network of a kind of user.
(3) colony dispatching administrative center: colony dispatching administrative center connects PDN-GW (Packet DataNetwork-Gate Way, grouped data network gateway).Colony dispatching administrative center is responsible for finishing the management of group service right of speech and scheduling, the empowerment management of cluster individual calling/group calling, group service COS are assigned and the group service quality of service configuration, in addition, and to the authentication of user terminal and wireless dispatching platform.
Intersection identity registration principle between public network user and private network user as shown in Figure 1.
The user initiatively selects to be registered to cluster network under the TD-LTE public network:
In order to be registered to public network under the cluster network fast after the user, MME,, base station (eNode B) can keep user's beared information and radio bearer information, start timer simultaneously, when timer expired, select to discharge this user's resource, improve resource utilization.Idiographic flow as shown in Figure 2.
The user initiatively selects to withdraw from cluster network and turn back to the public network login state:
After the user finishes group service, initiatively select to withdraw from public network service, after the cluster management center answer, MME, PDN-GW, eNodeB recover user's public network carrying and radio bearer information.Idiographic flow as shown in Figure 3.
Claims (8)
1. based on the public network cluster of TD-LTE user's intersection identity registration method on the same group, it is characterized in that:
The registration process that the user is registered to cluster network is realized by following steps:
Step 1, user initiatively initiate the registration request of trunking communication, and adhere to solicited message to the base station transmission;
Describedly adhere to IMSI or the GUTI that solicited message comprises the user, also comprise user network ability information, packet data network type information, type of attachment information, Non-Access Stratum serial number information, Non-Access Stratum information and selecteed network indication RRC parameter;
Adhere to solicited message in step 2, the base station receiving step one, and obtain the MME of user under current according to adhering to selected network indication RRC parameter in the solicited message; The base station sends the MME cluster module that return information belongs to this user;
Comprise in the described return information and have control information, the selected network information of adhering to solicited message and the residential quarter TAI+ECGI information of receiving information;
MME cluster module under step 3, this user sends the user and adheres to information, and this user adheres to information and is forwarded to the cluster management center through PDN-GW;
Described user adheres to IMSI or the GUTI that information comprises the user, and the sign network type SN ID of service network;
Step 4, cluster management center be according to user's IMSI or GUTI, and seek corresponding permanent key K; If judged result is for being that then execution in step 41; If judged result is that then execution in step four or two;
Step 4 one, calculate Ciphering Key according to key K; And this Ciphering Key is sent to MME cluster module under this user; And execution in step five;
Comprise random number RA ND, authentication-tokens AUTN, expection response value XRES and key K ASME information in the described Ciphering Key;
Step 4 two, cluster management center are sent refusal and are adhered to information, and are transmitted to the MME cluster module under this user, and the MME cluster module under this user sends refusal and adheres to information to this user; End is based on the public network cluster of TD-LTE user's intersection identity registration on the same group;
MME cluster module under step 5, this user receives the Ciphering Key that send at the cluster management center, keeps the XRES value in this Ciphering Key, and sends authentication information to this user;
Described authentication information comprises authentication-tokens AUTN and random number RA ND;
After step 6, this user receive this authentication information, the freshness of the AUTN value in the authentication verification vector at first, if the verification passes, then execution in step 61; If checking is not passed through, then execution in step six or two;
Step 6 one, this user finish the authentication to the cluster management center, and calculate response value RES according to the random number RA ND value in the Ciphering Key and authentication-tokens AUTN value, and this RES value is sent to the affiliated MME cluster module of this user; And execution in step six one by one;
Step 6 one by one, the MME cluster module under this user receives this RES value, and compare with XRES value in the Ciphering Key, and judge whether unanimity of these two values, if unanimity, then execution in step 622; If inconsistent, then execution in step six or two;
Step 6 two or two; The authentication to this user is finished at the cluster management center; And execution in step seven;
Step 6 two, finish based on the public network cluster of TD-LTE user's intersection identity registration on the same group;
MME cluster module under step 7, HSS and this user is interacting user information each other;
Described mutual user profile comprises user's group information, id information and user signing contract information;
Step 8, judge the contextual information whether this user's activation is arranged in the MME cluster module under this user, if judged result is for being, execution in step Aug. 1st then; If judged result is that then execution in step nine;
MME cluster module under step Aug. 1st, this user sends deletion session solicited message, and this deletion session solicited message is sent to PDN-GW by S-GW; And execution in step nine;
Step 9, PDN-GW send to the MME cluster module under this user by S-GW and answer response deletion session request signal, and send public network beared information answer signal;
Behind the answer response deletion session request signal and public network beared information answer signal in the MME cluster module receiving step nine under step 10, this user, the MME cluster module under this user is deleted the contextual information of this user's activation; And for this user distributes an EBI sign, and sending establishment session request signal, this establishment session request signal is forwarded to the cluster management center through S-GW and PDN-GW; Simultaneously, the MME cluster module under this user keeps the public network beared information answer signal that receives;
Step 11, cluster management center send to the MME cluster module under this user by PDN-GW and S-GW and create the conversational response response signal;
MME cluster module under step 12, this user sends radio bearer and sets up request signal to the base station, described radio bearer is set up to include in the request signal and allowed to adhere to signal and keep the user radio beared information;
Step 13, base station are received to receive and are allowed to adhere to signal and keep the user radio carrying signal;
Step 14, base station are set up request signal according to radio bearer and are set up RRC and connect and reshuffle signal, and to sending to this user;
Step 15, this user receive RRC and connect and to reshuffle signal, and carry out resource and reconfigure, and comprise that default bearing reconfigures with the low layer parameter to reconfigure; Reconfigure finish after, this user sends out RRC at SRB1 and connects and reshuffle the message of finishing;
Step 10 six, base station send the response signal that radio bearer is set up request signal to the MME cluster module under this user;
Step 10 seven, this user send upstream message and direct transfer signal to the base station;
The described upstream message signal that direct transfers comprises and adheres to the Attach Complete information of finishing;
Step 10 eight, base station send Attach Complete signal by up link NAS direct-sending message to the MME cluster module under this user; After sending successfully, the MME cluster module under this user is revised as presence with this user's cluster flag bit;
Simultaneously, the MME cluster module under this user sends to colony dispatching administrative center with Attach Complete signal, finishes this user's identity registration;
The process that the user withdraws from cluster network and turns back to public network registration is realized by following steps:
Steps A, this user send up link Non-Access Stratum message transfer to the base station;
Described up link Non-Access Stratum message transfer comprises detach request information;
Described attachment removal information comprises IMSI and this subscriber group information of this user;
Step B, base station send the up link Non-Access Stratum signal that direct transfers to the MME cluster module under this user;
The described up link Non-Access Stratum signal that direct transfers comprises NAS layer attachment removal signal;
MME cluster module under step C, this user is sent to PDN-GW with this user's detach request signal by S-GW;
Step D, PDN-GW receive the detach request signal, judge that according to this user's IMSI and conversation end state this user is whether on the paging flag bit; If judged result is for being, execution in step D1 then; If judged result is not, then execution in step D2;
Step D1, then stop calling to this user and execution in step E;
Attachment removal is revised as with this state of user in step D2, cluster management center, upgrades concurrent the sending to of user resources and adheres to instruction; And execution in step E;
MME cluster module under step e, this user sends solicited message to HSS;
Described request information comprises user's group information and positional information;
After the solicited message of step F, HSS receiving step E, echo reply user profile and reply group information;
Replying user profile and replying group information among the MME cluster module receiving step F under the step G, this user, and send the session request signal of this user of deletion in cluster to the cluster management center by S-GW and PDN-GW;
Session request signal in the described cluster also comprises this user's group information modification information;
Step H, cluster management center receive this session request signal, and judge whether this user's detach request is legal, if judged result is for being, and execution in step H1 then; If judged result is not, then execution in step H2;
Step H1, cluster management center change this state of user and the flag bit of this user in group, and send session deletion answer signal by PDN-GW and S-GW; And execution in step I;
Step H2, user withdraw from the cluster network failure, finish the process that this user turns back to the public network registration;
MME cluster module under step I, this user receives session deletion answer signal, and deletes this user's conversation message, and notice HSS, cancels this user's cluster position information;
Step J, HSS change the state of this user in cluster network and group, and state of user is notified this user affiliated MME cluster module after will changing;
MME cluster module under step K, this user is revised as resting state with the state of activation of this user in trunking communication, and notice HSS;
MME cluster module under the step L, this user judges whether timer is overtime, if judged result is for being, and execution in step L1 then; If judged result is not, then execution in step L2;
MME cluster module under the step L1, this user sends beared information that request recover public network by S-GW to PDN-GW according to user's log-on message in public network last time;
Described request recovers to comprise in the beared information of public network user's beared information that this user's IMSI last time kept; And execution in step M1;
MME cluster module under step L2, this user sends the establishment user by S-GW and PDN-GW and carries request signal, and carries out M2;
Step M1, PDN-GW receive the beared information that request recovers public network, examine this user's identity after, send to MME and to recover the user and carry answer signal; And execution in step N;
Step M2, PDN-GW receive the establishment user and carry request signal, and according to timer information and the user identity set up for this user, send the establishment carrying by S-GW to the MME cluster module under this user and reply; And execution in step N;
MME cluster module under the step N, this user sends out to adhere to the base station replys, and informing base station discharges the cluster wireless carrying signal, and recovers or rebuild this user's public network radio bearer signal;
After step O, base station receive that attachment removal is replied, discharged cluster wireless carrying signal and recovery or rebuilds this user's public network radio bearer signal, discharge user's cluster wireless link information then, and send the RRC reconfiguration message that this user is attached in the public network and carry out the user resources reprovision; And attachment removal replied with the RRC reconfiguration message send to this user;
After step P, this user receive that attachment removal that the base station sends is replied, according to the RRC reconfiguration message this user's terminal parameter is set, reshuffles and send reprovision to the base station after finishing and finish response message;
The response message that step Q, base station have been withdrawed from this user from cluster network and entered into public network is notified the MME cluster module under this user;
The response message that MME cluster module under the step R, this user has withdrawed from this user from cluster network by S-GW and PDN-GW and entered into public network is transmitted to the cluster management center;
MME cluster module under step S, this user sends the bearer messages that upgrades the user to S-GW and PDN-GW respectively;
Step T, S-GW and PDN-GW upgrade user's carrying respectively, and the MME cluster module under this user sends response message;
MME cluster module under step U, this user sends information to HSS, this state of user is changed into be registered in public network;
Step V, HSS send answer signal to the MME cluster module under this user, finish the identity registration of this user on public network.
2. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group, when it is characterized in that user's identity registration is carried out in the base station, MME carries out radio bearer to be upgraded, and concrete steps are:
MME cluster module under step 10 nine, this user receives radio bearer and sets up after request signal and the Attach Complete message, sends to S-GW and revises the carrying request signal;
Described modification carrying request signal comprises address, base station, base station TEID and switches indication;
Step 2 ten, S-GW send the affirmation signal of revising the carrying request signal to the MME cluster module under this user, finish radio bearer and upgrade.
3. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group is characterized in that comprising in the establishment session request signal described in the step 10: the TEID of IMSI, MME control frame, PDN Gateway address, distribute to the maximum polymerization bit rate of IP type, each access node, core net bearing identification and the protocol configuration information that user's IP address, APN, radio access technology types, dedicated bearer service quality, PDN connect by PDN-GW.
4. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group is characterized in that comprising in the establishment conversational response response signal described in the step 11: the packet data network type, distribute to user's IP address, user plane gateway address, user plane gateway tunnel endpoint identifier, core network identity sign, PDN Gateway address and protocol configuration option by PDN-GW.
5. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group is characterized in that allowing described in the step 12 to adhere in the signal to comprise: APN, GUTI, packet data network type, PDN Gateway address, follow the tracks of residential quarter flap-list, core net bearing identification, session management request, protocol configuration option, Non-Access Stratum sequence number.
6. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group is characterized in that the information of adhering to described in the step 10 seven comprises core net bearing identification and Non-Access Stratum sequence number.
7. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group, it is characterized in that step N rebuilds in user's the radio bearer information process, MME cluster module under this user sends initial context and sets up request message to the base station, default bearing is set up in request;
Described context is set up request message and is comprised that the NAS layer activates default core bearing request message hereinafter on the net.
8. the public network cluster based on TD-LTE according to claim 1 user's intersection identity registration method on the same group is characterized in that the user resources reprovision comprises reprovision SRB1 and allocation radio resource among the step O, and sets up SRB2 and Data Radio Bearer DRB.
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