Chengzhen SUN

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method, system and apparatus for accessing a visited network
- Patent number 9,392,435
- Issue date Jul 12, 2016
- Huawei Technologies Co., Ltd.
- Peng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, system and apparatus for accessing a visited network
- Patent number 8,776,184
- Issue date Jul 8, 2014
- Huawei Technologies Co., Ltd.
- Peng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD, SYSTEM AND APPARATUS FOR ACCESSING A VISITED NETWORK
- Publication number 20140273969
- Publication date Sep 18, 2014
- Huawei Technologies Co., Ltd
- Peng ZHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MESSAGE INTERWORKING METHOD, SYSTEM, ENTITY AND MESSAGE DELIVERY RE...
- Publication number 20090221310
- Publication date Sep 3, 2009
- Huawei Technologies Co., Ltd
- Fang Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, SYSTEM AND APPARATUS FOR ACCESSING A VISITED NETWORK
- Publication number 20090049526
- Publication date Feb 19, 2009
- Huawei Technologies Co., Ltd
- Peng ZHANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR CONTROLLING BEARERS OF SERVICE DATA FLOWS
- Publication number 20090016344
- Publication date Jan 15, 2009
- Huawei Technologies Co., Ltd
- Huadong Hu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE