System and method for searching for session ID in wireless mobile IP communication system
First Claim
1. A method for setting up a session at a Foreign Agent (FA) of a wireless communication system that uses a Mobile Internet Protocol (MIP), the method comprising:
- determining, by the FA, a Network Access Identifier (NAI) of a Mobile Node (MN), when at least one MN requests registration;
assigning, by the FA, a session Identification (ID) to the NAI of the MN;
inserting, by the FA, the session ID assigned to the NAI into an Identification Low field forming a registration request field of a message requesting registration of the MN;
transmitting, by the FA, the message to a Home Agent (HA) of the MN;
determining, by the FA, an MN to which registration information included in a registration reply message is to be transmitted using the session ID included in an Identification Low field forming a registration reply field of the registration reply message, when the registration reply message is received from the HA; and
transmitting the registration information to the determined MN,wherein the Identification Low field comprises the session ID of the MN and time information for discriminating at least two messages comprising a same Identification High field.
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Accused Products
Abstract
A system and a method for performing session setup in a wireless communication system that uses a Mobile Internet Protocol (MIP) are provided. In the method, when at least one Mobile Node (MN) requests registration, a Network Access Identifier (NAI) of the MN is determined. A session Identification (ID) is assigned to the NAI of the MN. The session ID assigned to the NAI is inserted into an Identification Low field forming a registration request field of a message requesting registration of the MN. The message is transmitted to a Home Agent (HA) of the MN. A Foreign Agent (FA) can more easily search for an MN corresponding to a registration reply message provided from the HA, and memory consumption and a time delay that occurs due to a hash method may be reduced.
36 Citations
14 Claims
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1. A method for setting up a session at a Foreign Agent (FA) of a wireless communication system that uses a Mobile Internet Protocol (MIP), the method comprising:
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determining, by the FA, a Network Access Identifier (NAI) of a Mobile Node (MN), when at least one MN requests registration; assigning, by the FA, a session Identification (ID) to the NAI of the MN; inserting, by the FA, the session ID assigned to the NAI into an Identification Low field forming a registration request field of a message requesting registration of the MN; transmitting, by the FA, the message to a Home Agent (HA) of the MN; determining, by the FA, an MN to which registration information included in a registration reply message is to be transmitted using the session ID included in an Identification Low field forming a registration reply field of the registration reply message, when the registration reply message is received from the HA; and transmitting the registration information to the determined MN, wherein the Identification Low field comprises the session ID of the MN and time information for discriminating at least two messages comprising a same Identification High field. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless communication system that uses a Mobile Internet Protocol (MIP), for performing a session setup, the system comprising:
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a Foreign Agent (FA) for inserting a session Identification (ID) assigned to a Network Access Identifier (NAI) into an Identification Low field forming a registration request field of a message requesting registration of a Mobile Node (MN), when at least one MN requests registration, for assigning a session ID to an NAI of the MN, and for transmitting the message to a Home Agent (HA); and the HA for performing a binding cache for the MN according to registration request information of the MN included in the message provided from the FA, for inserting the session ID of the MN into an Identification Low field forming a registration reply field of a message including registration information of the MN, and for transmitting the message to the FA, wherein the FA determines the MN to which the registration information included in the message is to be transmitted using the session ID inserted into the Identification Low field forming the registration reply field of the message comprising the registration information provided from the HA, and transmits the registration information to the determined MN, and wherein the FA generates the Identification Low field such that the Identification Low field comprises the session ID assigned to the NAI and time information for discriminating at least two messages comprising a same Identification High field. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification