53 results about "Proxy Mobile IPv6" patented technology

The invention discloses a method for binding configuration stream to a multi-homed mobile node in a proxy mobile IPv6 network, which is characterized by comprising the following steps that: when the multi-homed mobile node accesses the proxy mobile IPv6 network for address configuration, a network side entity allocates an identical home network prefix for all interfaces of the mobile node; a local mobility anchor point and a mobile access gateway set routing respectively so as to support ordinary packet forward and the forward of packets needing a stream binding operation according to routing rules; the mobile node or the local mobility anchor point makes the routing rules and transfers the routing rules through the mobile access gateway to transmit the routing rules to another party; and the packets matched with descriptions on the routing rules are transmitted and received according to the binding interfaces specified by the corresponding routing rules, and the other packets are ordinarily routed according to destination addresses of the packets.

The invention discloses a method, a system and a device for load balancing, which are applied to a proxy mobile IPv6 network. The method comprises the following steps that: a routing management entity periodically reports load information according to each local mobile anchor point (LMA) and determines an overload LMA and a light load LMA; and the routing management entity notifies a mobile access gateway (MAG) which forwards data through the overload LMA to adjust data forwarding routing to ensure that the MAG changes the data required to be forwarded by the overload LMA into the data forwarded by the light load LMA. The method, the system and the device improve the architecture of the existing proxy mobile IPv6 network, and perform the balancing of data forwarding amount between the overload LMA and the light weight LMA by adopting a plurality of the LMA and a newly-added network entity namely the routing management entity and adjusting the data forwarding path of the MAG, so the load balancing of the LMA can be realized dynamically in real time.

A network component comprising at least one processor configured to implement a method comprising promoting a optimization of a communications route associated with a mobile node (MN) and a correspondent node (CN) using Internet Protocol version 4 (IPv4) packets is disclosed. Also disclosed is a network comprising a mobility access gateway (MAG) in communication with a MN, and a CN in communication with the MAG and that desires to communicate with the MN, wherein a communications route between the MN and the CN is optimized using IPv4 signaling. Included is a method comprising promoting an optimization of a communications route between a MN and a CN using IPv4 signaling. Standalone CNs and CNs under a MAG embodiments are supported.

The invention discloses a method for supporting PMIPv6 (Proxy Mobile IPv6) mobility, which comprises the following steps of: sending a proxy binding update (PBU) message by a mobile access gateway (MAG) when a mobile node (MN) supporting IPv4 is moved into a PMIPv6 domain of a network address translation scene; receiving the PBU message by a local mobile anchor (LMA), and adding or updating an IPv4 network address translation port number and a public IPv4 home address in binding update items of the MN; adding and updating the IPv4 network address translation port number and the public IPv4 home address by the MAG in a binding update list of the MN; and forwarding the message by the MAG and the LMA according to the public IPv4 home address and the Pv4 network address translation port number. Meanwhile, the invention discloses a system for supporting PMIPv6 mobility. According to the scheme of the invention, the support of PMIPv6 to IPv4 during network address translation can be met.

A method and system for FIG. 2 optimizing a route between nodes in a Proxy Mobile Internet Protocol version 6 (PMIPv6) network is provided. The method of optimizing the route between nodes in the PMIPv6 network includes: performing a home address (HoA) test between a first Mobile Access Gateway (MAG) and a second MAG using an Internet Protocol version 6 (IPv6) home address of a mobile node and an IPv6 address of a correspondent node; performing a care-of address (CoA) test between the first MAG and the second MAG using an IPv6 Proxy CoA of the first MAG and the IPv6 address of the correspondent node; and setting an optimal route between the first MAG and the second MAG based on binding information that is generated by performing the HoA test and the CoA test.

The invention discloses a quick and efficient agent mobile IPv6 switching method. By the adoption of a make-before-break prediction mode in the method, access authentication and registration updating processes in the PMIPv6 switching process are completed before a current link breaks, so that after a mobile node is connected to a new link, ports can be configured as soon as possible and the communication session process can be continued, therefore, switching delay is shortened, and packet losses are lowered. Meanwhile, according to the provided switching method, the condition that the prediction mode fails is also considered, a self-adaptive link triggering mechanism is used, namely preparation operations are triggered and switched in a dynamic mode according to the movement speed of the mobile node and the time required for switching the preparation operations, it is guaranteed that the prediction mode is conducted successfully, and therefore the reliability of the method is enhanced.

The invention relates to a seamless interface switching method for PMIPv6 (Proxy Mobile Internet Protocol v6) multi-connection mobile nodes, belonging to the field of PMIPv6. A mobile node is provided with a plurality of network interfaces which simultaneously access to the same PMIPv6 domain, when one network interface (assumed as IF1) of the mobile node is accessed to an MAG3 (Mobile Access Gateway 3) in the same PMIPv6 from an MAG1, data transmitted on the interface is firstly transmitted onto the MAG connected with other network interfaces of the mobile node, and then transmitted to the non-switching interface of the mobile node; and when an LMA (Lightspeed Memory Architecture) detects that the mobile node is leaving the MAG1, the LMA directly transmits the data flow onto the MAG connected with other network interfaces of the mobile node, thereby realizing seamless data transmission in the interface switching process of the mobile node.

Provided are an LMA, a proxy router, and a management method for supporting NEMO in a PMIPv6 network. To support mobility in the PMIPv6 network for mobile nodes forming one node group within a mobile network, the proxy router for delivering signal and data between the mobile nodes and the PMIPv6 network delivers mobile home network prefixes allocated by the LMA of the PMIPv6 network to the mobile nodes. The LMA generates a group ID corresponding to the node group. Packet delivery costs due to an unnecessary tunnel may be reduced by grouping a plurality of mobile nodes constituting a mobile network, and using and managing flags and the same group ID.

The invention provides a mobility management network and a mobile management inter-domain handover method. The network comprises a plurality of PMIPv6 (Proxy Mobile Internet Protocol version 6) domains comprising proxy equipment and a plurality of mobile access gateways; when detecting mobile nodes in other domains, the mobile access gateway sends a first PMIPv6 binding update message to the local proxy equipment and receives a returned first PMIPv6 binding confirmation message, thus establishing a bidirectional tunnel with the local proxy equipment and sending a home network prefix to the mobile nodes; the proxy equipment receives the first PMIPv6 binding update message and returns the first PMIPv6 binding confirmation message; and the first PMIPv6 binding update message sent by the mobile nodes in the local domain is received, and the first PMIPv6 binding confirmation message is returned, thus establishing a bidirectional tunnel with the mobile nodes in the local domain. According to the technical scheme in the invention, the multi-connection technology can be realized under the condition of supporting both local mobility and global mobility.

The present invention relates to an agent-based mobile IP communication technology and discloses a method for safety registration by utilizing an agent-based mobile IP. When mobile nodes are authenticated, safe and reliable IP registration of mobile nodes without having mobile IP ability can be achieved by adopting a method that the mobile safety alliance related to mobile IP of mobile nodes are sent to IP agent nodes. Said method in accordance with the present invention is fit for both agent mobile IPv4 and agent mobile IPv6.

Disclosed are a packet buffering apparatus and method for reducing packet loss in a proxy mobile IPv6, which include a first Mobile Access Gateway (MAG) requesting a Local Mobility Anchor (LMA) for packet buffering when outgoing Mobile Node (MN) being served by the MAG is detected, and the LMA for buffering the packet transmitted to the corresponding MN when receiving a request for the packet buffering.

The invention discloses a method and a system for notifying position information of an access network. The method comprises the following steps: carrying a circuit mark in proxy binding update information to transmit to a local mobile anchor (LMA) by a mobile access gateway (MAG) under a framework of a proxy mobile IPv6 protocol (PMIPv6); carrying the circuit mark in creation of a session request message, modification of a bearing request message or deletion of the session request message to an opposite terminal GTP peer by a home terminal GTP peer under the framework of a general data transmission platform (GTP). By adopting the method and the system, the MAG can notify the LMA the position information of the access network of unified equipment (UE) under the framework of the PMIPv6, and the GTP peer can notify the opposite terminal GTP peer the position information of the access network of the UE under the framework of the GTP.

The invention relates to a routing optimization method of communication between a mobile node in a PMIPv6 (Proxy Mobile IPV6 (Internet Protocol Version 6)) domain and a communication node in a MIPv6 (Mobile IPv6). The routing optimization method is realized by expanding functions of an MAG (Mobile Access Gateway) so that the MAG can support a BU/BA (Binding Update/Binding Acknowledgement) message, a HoTi/HoT message and a CoTI/CoT message in the MIPv6. The MAG has a local routing function; when receiving data messages from an MN (Mobile Node), the MAG can look up a routing table; if a corresponding table entry is looked up, the table entry forwards the data messages; and if the corresponding table entry is not looked up, a routing optimization process is started. The routing optimization process comprises the steps: the MAG sends an LRI (Local Routing initialization) message to an LMA (Local Mobility Anchor) and receives an LRA (Local Routing Acknowledgement) message replied by the LMA; the MAG starts an RRP (Return Routability Procedure); and the MAG sends the BU message to an CN (Communication node) and receives a BA message replied by the CN. After the optimization process is finished, the MAG can establish a new routing table entry so that the MAG can be directly communicated with the CN.

The invention provides a dynamic DNS (domain name system) updating method of a PMIPv6 (proxy mobile IPv6). According to the method, the basic PMIPv6 signalling message and the interactive process are expanded, the function of realizing the DNS information dynamic updating of an MN (mobile node) is supplemented, in addition, the support on various possible requirements of DNS updating operation can be guaranteed through flexible marking positions, finally, the DNS information of the MN can be updated in the PMIPv6 environment, and the compatibility with PMIPv6 protocols is guaranteed.

The invention relates to an inter-domain switching method of a proxy mobile IPv6 (Internet Protocol Version 6). When a mobile node (MN) is switched from a local mobile anchor (LAM1) to the other local mobile anchor (LAM2), a binding of a former home address (HoA1) and a new home address (HoA2) is established on the LMA1 by the MN. In a non-routing optimization mode, a source address of a data report which is sent to a non-switched communication node (CN) by the switched MN is the HoA1, and a purpose address of the data report which is sent to the MN by the CN is the HoA1. Therefore, the communication between the MN and the CN is transferred through the LMA1. In a routing optimization mode, an address binding which is maintained by the switched CN is changed to a binding of the HoA1 and the HoA2, the source address of the data report which is sent to the CN by the MN is changed to the HoA2, a home address item expansion head is filled with the HoA1, the purpose address of the data report which is sent to the MN by the CN is changed to the HoA1, and a second kind route head is filled with the HoA1. Accordingly, the CN and the MN can directly be communicated with each other.

The present invention is related to a method for managing mobility of a mobile node and a system using the method employing Proxy Mobile IP technology. A method for managing mobility of a mobile node and a system using the method according to the present invention minimizes overhead imposed on LMA (Local Mobility Anchor) when a mobile node carries out handover or multiple connections and complements a drawback observed when LMA of Proxy Mobile IP carries out multiple connections. To achieve the above advantages, in a method for managing mobility of a mobile node and a system using the method according to the present invention, LMA and MAG utilizes connection type information of a mobile node.

The invention provides an agent mobile IPv6 (Internet Protocol Version 6) inter-domain switching method based on network mobility management. The traditional agent mobile IPv6 method is not suitable for inter-domain switch. Compared with the traditional agent mobile IPv6 method, the method provided by the invention expands structures and kinds of signalling messages, re-defines concepts of home addresses and care-of addresses, increases cache information of local mobility anchors and re-assigns processes for communicating and updating. The method provided by the invention realizes the four targets as follows: firstly, consistent idea of the agent mobile IPv6 is followed; mobile subscribers do not participate in any mobility management work; and mobility management works are responsible by network equipment, such as local mobility anchors; secondly, mobility (inter-domain switching) of the mobile subscribers is completely transparent on a conversation opposite side; thirdly, routing is optimized, namely, both conversion sides directly communicate through the local mobility anchor which is currently accessed without communicating bypassing the local mobility anchor before switching; and fourthly, in the process of carrying out inter-domain switching, the method is completely compatible with the traditional agent mobile IPv6 method.

The invention relates to a proxy mobile IPv6 group switching solution based on link layer grouping. In particular, the invention aims at solving the problems as follows: in a proxy mobile IPv6 domain, when one group of MN (mobile nodes) is switched from the same P-MAG to another N-MAG, the group of MN can be registered in a form of group; when the MN leaves from the N-MAG, the MN can also be unbound and leave in a form of group. The purposes of the invention are realized as follows: the function of expanding MAG can group the MN based on the link layer, and maintain the grouping information until the MN leaves; the function of expanding LMA can record and maintain the grouping information; and the information formats defined by expansion RFC5213 like PBU, PBA and DeReg PBU can support the MN to be switched in the form of groups. The proxy mobile IPv6 group switching solution based on the link layer grouping can effectively reduce the switching signaling and signaling overhead when the MN moves in the form of groups, and is beneficial for promoting the application of PMIPv6 (proxy mobile internet protocol version 6) in time delay sensitive services.

Provided is a selectable route optimization method of distributed mobile management. An option of an agency mobile internet protocol version 6 (IPv6) is set to send out along carrying of agency mobile IPv6 message in a conversation building and keeping process to enable a router to conveniently select and execute corresponding route optimizing strategies according to user requests or configuration characteristics of the local router, simultaneously diversification supports on the optimizing strategies are provided for an agency mobile IPv6 network to fine and optimize supports of different applications through the network. The option is a mobile option with variable length and containing zero, one or a plurality of type-length-value codes, and the total word length of the option is integral multiples of 8 bits. A region and a coding format follow requirements for 6.2 bits of RFC3775 to enable a mobile access gateway to ignore and skip unrecognizable option number and option contents. The selectable route optimization method can be applicable to various application fields and has good popularization and application prospects.

The invention provides a vehicle node location privacy protection system and method in conjunction with a PMIPv6 (Proxy Mobile IPv6) framework. The method comprises the following steps that: an LBS (Location Based Server) and OBUs (On Board Units) register with a TA (Trusted Authority), and the LBS acquires a certificate and a private key issued by the TA and calculates a public key of the LBS; the OBUs acquire a series of pseudonyms and corresponding public keys and private keys issued by the TA; the OBUs generate location service requests by using the pseudonyms and location information andsend the location service requests to an LMA (Local Mobility Anchor) through MAGs (Mobile Access Gateways), and the LMA aggregates the location service requests of the OBUs and send an aggregated location service request to the LBS; and the LBS aggregates responses of all OBUs accessing to the same LMA and transmits an aggregated response to the LMA by taking the pseudonyms of the OBUs and corresponding response messages as responses, the LMA transmits the aggregated response to corresponding MAGs for broadcasting; and the OBUs under the same MAGs acquire responses corresponding to requested location services according to the pseudonyms of the OBUs. Through adoption of the vehicle node location privacy protection system and method, vehicle node location privacy protection is realized in conjunction with the PMIPv6 framework, and the LMA sends a location-based request to the LBS and accepts a response message instead of the OBUs according to the idea of group, so that location privacy of the OBUs is ensured.

The invention discloses an agent mobile IPv6 signaling expansion, mobile subnetwork registering and deregistering method. The expansion method comprises the following steps that firstly, a subnetwork identifier is defined for showing that a plurality of MNs (mobile nodes) belong to a subnetwork so that MNs inside a mobile subnetwork are effectively managed in the mobile subnetwork registering and deregistering process, and in addition, the subnetwork identifier is registered when the MN identity is registered; next, during the mobile subnetwork registering, the signaling number during the registering is effectively reduced through the expansion of mobility options in PBU (proxy binding update) and PBA (proxy binding acknowledgement) messages; and finally, MSNRC (mobile subnet registration cache) is redefined on a MR (mobile router), the MNs inside the subnetwork are ranged according to sequences, and MN-ID (mobile node-identifier) and HNP (home network prefix) matching is ensured. The invention also discloses a mobile subnetwork registering and deregistering method.

The invention provides a method for maintaining the local route continuity in proxy mobile IPv6. The method is applicable to the following scene: two mobile nodes (MN1 and MN2) are respectively registered on local mobile anchors (LMA1 and LMA2), and local route is carried out by the MN1 and the MN2 by the same access gateway (MAG1); after that, the MN2 is switched into another access gateway (MAG2); local route is continuously carried out by the MN1 and the MN2 through the MAG1 and the MAG2. Before the MN2 is switched, local route entries (LRE) which comprise the opposite side addresses are respectively built in the LMA1 and the LMA2, and the LRE is also built in the MAG1. When the MN2 is switched into the MAG2 from the MAG1, the LRE in the MAG1 and the LMA1 related with the MN2 is eliminated, but the LRE related with the MN2 is reserved by the LMA2. When MN2 is switched into the MAG2 and after the LMA2 is registered again, the local route is initiated by the LMA2 by utilizing the reserved registration information of the LRE and the MN2, and the switched local route continuity is maintained.

The invention relates to an IMS (IP Multimedia Subsystem) system mobility management method based on an IPv6. The purpose of the invention is realized in such a way which comprises the steps: (1) a proxy mobile IPv6 network serves as a bearing network of SIP signalings and media; (2) the IMS (IP Multimedia Subsystem) system mobility management method fully makes use of an advantage of a grant address space of the IPv6 to allocate one unique and permanent IPv6 address which is called home address of a user for each mobile user; the home address of the user is allocated by an operator of a network where the registration location belongs; and the home address of the user not only can serve as an identity identification of the user, but also can serve as the IPv6 address of calling session control module of the registration location where the SIP information routes to; and (3) the mobility management switched in a user domain is in the charge of the proxy mobile IPv6; the mobility management switched among domains is in the charge of both the proxy mobile IPv6 and IMS system. By utilizing the proxy mobile IPv6 as the bearing network of the IMS, the IMS (IP Multimedia Subsystem) system mobility management method based on an IPv6 disclosed by the invention has the advantages of reducing signaling consumption and supporting the mobility better, with respect to the GPRS (General Packet Radio Service).

The embodiment of the invention discloses a data forwarding method, a data forwarding device and a data forwarding system in a proxy mobile internet protocol version 6 (Proxy Mobile IPv6, PMIPv6). The method comprises that: a local mobile anchor (LMA) binds at least one interface of a multi-interface mobile node (MN) to a mobile access gateway (MAG) set comprising at least two MAGs; and the LMA selects an MAG from the MAG set according to the preset strategy and interacts data with at least one interface of the multi-interface MN by the selected MAG. In the embodiment, a plurality of MAGs corresponding to a plurality of interfaces can forward data at a certain interface simultaneously so as to merge the bandwidth belonging to different interfaces in the multi-interface MN. Moreover, the invention is simple and practicable, and has high practicability and expandability.