Abstract:
The present invention provides a method and system for handoff control in a wireless communication network. In an embodiment, a method for handoff control in an IP based wireless communication network, comprising (i) monitoring and obtaining movement information of a moving mobile node (ii) predicting the next point of network attachment for the client mobile node, and (iii) performing the handoff operation before the mobile node moves to a new location corresponding to next point of network attachment, wherein the interruption time during the handoff is substantially minimum.
Abstract:
The present invention provides mobile voice over internet protocol (MoVoIP) communication device and method. In one embodiment, a plurality of programmable communication stack elements are provided that route a call to another MoVoIP communication device by connecting to a wireless network and thereafter performing standard mobile Internet Protocol (IP) signaling and resolving electronic numbering (ENUM) schemes.
Abstract:
The present invention generally relates to a method to stop pack drop in an overlapped wireless IPv6 coverage environment characterized in that wherein the method comprises of 3 stages and wherein the methods are: (i) Intelligent Physical Layer Handoff (ii) Short Term Buffering and (iii) Standard IP Layer Handoff and wherein stage (i) further comprises of five steps, stage (ii) comprises of one step and stage (iii) comprises of three steps and wherein the stages as described are designed to work within the telecommunication and digital broadcasting companies for real-time services such as IPv6 based phone, IPv6 based TV and IPv6 based conferencing solutions for mobile users.
Abstract:
A system (10) for power management with optimized connectivity in handoff of mobile device (11) between heterogeneous network (12, 13, 14) said mobile device (11) comprising a power management module which obtains power state information of said mobile device (11), and a network interface management module which includes a prioritized set of network interfaces (12, 13, 14) to enable said mobile device (11) to select for optimum quality of connection according to the power state of said mobile device (11).
Abstract:
A method (200) and system (100) for encapsulating multicast packets into unicast packets, the system comprises a TCP/TP communication stack having means for receiving a plurality of incoming multicast packets from an incoming wireless module (102), a first translation module (106) having means for translating the plurality of incoming multicast packets to a recognizable format for mapping, an intelligent hashing table (110) comprises means for storing a extracted subscriber IP address, a subscriber MAC address and a TTL period, a second translation module (114) comprises means for translating the unicast packets to a format recognizable for transmission, means for transmitting the unicast packets into an outgoing wireless module (116) and mapping modules comprises of a first mapping module (108) and a second mapping module (112). The mapping modules (108, 112) comprises the method of extracting the subscriber IP address, the subscriber MAC address and the TTL period from a plurality of incoming multicast packets (302), storing the subscriber IP address, the subscriber MAC address and the TTL period in an intelligent hashing table (304); encapsulating the plurality of incoming multicast packets into a plurality of unicast packets (306), forwarding the unicast packets for mapping (308) and multiplying the unicast packets in the presence of multiple subscribers (310).
Abstract:
A method and a system for implementing a location based Internet Protocol (IP) addressing scheme for improving mobile IP hand-off process are disclosed. In one embodiment herein, location co-ordinates (101) of a mobile device on the globe are obtained. Each location co-ordinate (101) may have a degree unit (102a), a minute unit (102b), a second unit (102c) and at least one precision unit (102d). The co- ordinates (101) are converted into an IP-based numeric value, 'N' and then embedded inside an IP address to create a location based IP address for improving mobile IP hand-off rocess.
Abstract:
The present invention relates to a method of maintaining mobile connectivity in a mixed protocol access environment and more particularly the present invention relates to a method of maintaining mobile IPv6 connectivity when a mobile node moves from one point to another by preventing the mobile node from attaching to an IPv4 network. The present invention includes a method by which a mobile IPv6 enabled MN would become intelligent enough to avoid other protocols. The present invention is also designed to restrict the mobility of the MN to be within the IPv6 domain. The present invention provides a model for Internet Service Providers (ISPs) who are interested in deploying mobile IPv6 and who do not want interference from existing IPv4 infrastructure. The present invention is also designed for mobility within an only IPv6 enabled network or it can also be used to move within an only IPv4 enabled network or to move between a selected list of APs.
Abstract:
The present invention relates to a method and system for use in providing multiple gateways within a network. A plurality of border routers (100, 200, and 300) is added preferably in between the mobile router (150) of the respective network and foreign routers so as to enable consistent connection. The border routers, among others are (100, 200, 300) suitably configured to serve as proxy advertisers for foreign routers (500), and to send out notifications with respect to their active or inactive status to the mobile router (150) of the network so as to enable the mobile router (150) to select the preeminent border router (100, 200, 300) for forwarding packets within the network.
Abstract:
A method of optimizing the quality of multicast services over a wireless network by dynamically controlling a broadcast rate, comprising: suppressing an automatic rate fallback protocol so that a broadcast data rate is not limited to the base data rate; transmitting a multicast data stream from an access point to a plurality of nodes; detecting if there is any data loss in the said multicast data stream; and lowering the data rate for each node incrementally if there is any data loss, until the data loss reaches an acceptable level or until the said minimum rate is reached, whichever happens first.