| 摘要 |
The invention relates to a method for dynamically controlling the quality of services attributed for the communication session of a user equipment (UE) in a 3GPP compliant communication network, comprising the steps of: initiating a communication session; an online charging system (OCS) detects an event (302) on the account of the user and decides that this event shall induce a change of parameters of the quality of service; the online charging system sends (303) a change of quality of service instruction to be applied after the consumption of the final granted units or immediately, to a policy control enforcement function (PCEF); the policy control enforcement function (PCEF) forwards said request to a policy and charging rules function (PCRF), once final units are exhausted; said policy and charging rules function (PCRF) derives modified policy charging and control rules from instruction for a change of quality of service within the session; said policy control enforcement function (PCEF) receives and applies said policy charging and control rules.
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