METHOD FOR OBTAINING INTERNET PROTOCOL HEADER REPLACEMENT MAPPING AND NETWORK NODE

摘要

The present invention discloses a method for obtaining an Internet protocol header replacement mapping, which belong to the field of communications technologies. The method includes: obtaining, by a network node, fixed IP header information which is bound to a UE, where the network node is an MME or an eNB or a PGW or an SGW; establishing an IP header replacement mapping according to the fixed IP header information, where the IP header replacement mapping is correspondence between the fixed IP header information and an index or a bearer; and performing data transmission with the UE according to the IP header replacement mapping. In the present invention, the network node establishes the IP header replacement mapping according to the obtained fixed IP header information which is bound to the UE, the method is more flexible.

主权项

1. A method for obtaining an Internet protocol header replacement mapping, comprising:
obtaining, by an mobility management entity, MME, from a UE, fixed IP header information which is bound to the UE; establishing, by the MME, an IP header replacement mapping according to the obtained fixed IP header information, where the IP header replacement mapping is correspondence between the fixed IP header information and an index; sending, by the MME, the established IP header replacement mapping to the UE, and receives a data packet sent by the UE after the UE substitutes the corresponding fixed IP header information with the index in the IP header replacement mapping; querying, by the MME, the IP header replacement mapping according to the index in the data packet sent by the UE, to obtain the fixed IP header information corresponding to the data packet sent by the UE; and recovering, by the MME, the index in the data packet sent by the UE to the corresponding fixed IP header information, and forwards the fixed IP header information to another network node.