Method and system for setting up a bearer

A serving general packet radio service support node (SGSN), comprising:

• a QoS information obtaining unit, configured to obtain first QoS information;
• a downlink bearer resource (DBR) allocating unit, configured to allocate a second DBR for a second bearer according to the first QoS information;
• a DBR information sending unit, configured to send the first QoS information and information about the second DBR;
• an uplink bearer resource (UBR) information receiving unit, configured to receive the first QoS information, information about second UBR, and a first bearer ID;
• a UBR allocating unit, configured to allocate a third UBR for the second bearer according to second QoS information associated with the first QoS information;
• a UBR information sending unit, configured to send the second QoS information and information about the third UBR;
• a DBR information receiving unit, configured to receive the second QoS information, information about third DBR, and a second bearer ID associated with the first bearer ID.

A method for setting up a bearer, comprising:

• setting up, by a serving general packet radio service support node (SGSN), a bearer between the SGSN and a packet data network gateway (PGW) through a serving gateway (SGW) according to first QoS information, wherein the bearer between the SGSN and the PGW is associated with first bearer ID;
• and
• setting up, by the SGSN, a third bearer between the SGSN and a radio access network (RAN) according to second QoS information, wherein the third bearer is associated with second bearer ID;
• wherein the second QoS information is associated with the first QoS information and the second bearer ID is associated with the first bearer ID.

A serving general packet radio service support node (SGSN), comprising:

• a first unit, configured to set up a bearer between the SGSN and a packet data network gateway (PGW) through a serving gateway (SGW) according to first QoS information, wherein the bearer between the SGSN and the PGW is associated with first bearer ID;
• and
• a second unit, configured to set up a third bearer between the SGSN and a radio access network (RAN) according to second QoS information, wherein the third bearer is associated with second bearer ID;
• wherein the second QoS information is associated with the first QoS information and the second bearer ID is associated with the first bearer ID.