Abstract: The present disclosure provides a method for preparing lithium iron phosphate from ferric hydroxyphosphate, including: purifying ferrous sulfate to form a ferrous sulfate solution, adding hydrogen peroxide, phosphoric acid, an ammonium dihydrogen phosphate solution and ammonia water into the ferrous sulfate solution and then reacting to form a mixed slurry, holding the mixed slurry at a temperature for a period of time, and then washing with water and subjecting to press filtration to form ferric hydroxyphosphate precursors with different iron-phosphorus ratios; then flash drying, sintering at a high temperature, and pulverizing to obtain ferric hydroxyphosphate precursors with different iron-phosphorus ratios and different specific surface areas.

Abstract: A method including establishing a first packet flow over a network between a first mobile device and a second mobile device said first mobile device coupled to a node having a first packet filter including an identifier and specifying a second mobile device as a first end point, interposing a remote data connection end point between said first and second mobile device, adding a second packet filter at said node including said identifier and specifying said remote data connection end point as a second end point, establishing a second packet flow between said first and second mobile devices via said remote data connection end point, and removing said first packet filter.

Abstract: Provided are improved systems, methods, and devices for handing off VoIP sessions and CDMA voice calls between wireless access networks and CDMA networks, thereby providing a user of a mobile device the ability to roam between wireless access networks and CDMA circuit switched voice networks during ongoing communication sessions. Provided are network architectures and process frameworks that enable seamless handoff between VoIP and circuit switched CDMA voice, including messages and procedures to facilitate such handoffs. Importantly, the voice traffic is not interrupted, and the handoff process may be automatic and transparent to the users of the communication session.

Abstract: A system for handing off a mobile node includes a mobile node and a target agent. The mobile node can communicate with an anchor agent, and can also be handed off from the anchor agent. The mobile node can establish a physical-layer connection between the mobile node and a target base station associated with the target agent. Also, the target agent can establish a tunnel between the target agent and the anchor agent. Thereafter, the mobile node can establish a link-layer connection between the mobile node and the target agent via the anchor agent and the tunnel. Then, the mobile node can register with the target agent to thereby bind the mobile node to the target agent such that data packet(s) pass through the target agent, across the link-layer connection and the physical-layer connection, and independent of the anchor agent and the tunnel.

Abstract: In an exemplary embodiment of this invention contexts are transferred at an appropriate time depending on the context type. As a result, link layer (PPP) delay can be substantially eliminated during Mobile IP handoff, without introducing additional packet loss. By way of example, all MS contexts (both static and dynamic) are maintained during the inter-PDSN handoff procedure, and any executing applications are not impacted by the inter-PDSN handoff.

Abstract: In exemplary embodiments of this invention context transfers (static and dynamic) are optimally performed to maintain the same quality of service (QoS) for a Mobile Station (MS) during a CDMA inter-BS hard handoff, as well as during a CDMA inter-BS soft handoff. Context transfers (static and dynamic) are also optimally performed to maintain the same QoS for the MS during a CDMA inter-Packet Control Function (PCF) hard handoff.

Abstract: A system for handing off a mobile node includes a mobile node and a target foreign agent. To effectuate a handoff of the mobile node from an anchor foreign agent to the target foreign agent, a tunnel can be established therebetween such that data packet(s) sent between the mobile node and a correspondent node pass between the target foreign agent and the anchor foreign agent through the tunnel. After the tunnel is established, the mobile node can register with the target foreign agent to thereby bind the mobile node to the target foreign agent such that data packet(s) sent between the mobile node and the correspondent node pass through the target foreign agent to the correspondent node independent of the anchor foreign agent and the tunnel. Thereafter, the target foreign agent can close the tunnel between the target foreign agent and the anchor foreign agent.

Abstract: Apparatus, and associated method, forms a direct data connection between mobile stations of a packet radio communication system. An SMS message is sent by an initiating mobile station to another mobile station between which communications are to be effectuated. The SMS message includes the IP address of the initiating mobile station. Once the SMS message is delivered to the other mobile station, the other mobile station is caused to obtain an IP address, if necessary. And, a socket connection is formed when the other mobile station returns a response message to the initiating mobile station. The mobile stations are each provided with the IP address of the other mobile station, and other needed information by way of which to form a direct connection upon which the data is communicated directly between the mobile stations.

Abstract: Disclosed is a method and apparatus to provide an IP connection between a mobile station (MS 10) and a computing device (CD 12). The method includes initiating the set up of the IP connection with a command sent from the CD to the MS over a local interface (13) and, in response to receiving over the local interface an IP message at the MS from the CD, routing the received IP message to an application that is resident in the MS. 2. In a presently preferred first embodiment the command is an AT command, more specifically an AT+CRM command having a value of five. In a presently preferred second embodiment the command places the MS into an auto-answer mode, and is an ATSO=1 command.