Key technology for GB 15629.11-2003
GB 15629.11-2003:Define the wireless connecting of Media Access Control and Physical Layer regulations that could be used in fixed, carrible and mobile circumstance in local region. It supplies wireless connecting for the auto settings that need fast configuration, equipments or websites, which could be carried by hand or in the car. In order to achieve locale region communication, the standard also supplies ways for the management organization to use one or more frequency sect. It clearly describes the function and service needed in the self-organized network and basic-organized network, also it describes the station mobility in these network. The standard defines MAC regulation, by supporting MAC Service Data Unit (MSDU) to deliver service; and defines several PHY technology and interface function controlled by MAC. The standard allows the equipments to be operated in a WLAN and this WLAN could co-exist with many overlapped WALNs. The standard also describes requirements and regulations in order to supply security for the users in wireless media and make authentication of the equipments. The security mechanism WAPI in GB 15629.11-2003 adopts the key certification mechanism based on ellipse, and wireless client STA and Access Point do bi-directional authentication by Authentication Server. Authentication Server supplies the function of the sending out, authentication and revoke of certification; when STA connects to an AP, the bi-directional certification authentication between STA and AP and negotiation session key could be accomplished. When encrypting to the transmitting data, the course of encryption and decryption is realized by the algorithm hardware supplied by the National Commercial Key Management Office, which fully guarantees the security of transmitting data.
Key technology for GB 15629.1101-2003
GB 15629.1101-2003:Regulates that wireless LAN adopts the physical layer of 5GHz; and the modulation is Orthogonal Frequency Division Multiplexing; the transmitting speed is 6Mbps~54Mbps. Such kind of speed could meet the requirement of indoor and outdoor.
Key technology for GB 15629.1102-2003
GB 15629.1102-2003:Is the sub-item of «Information Technology—Telecommunications and information exchange between Systems—Local and metropolitan area networks—Specific requirements—Part 11:Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications», with the working frequency is 2.4GHz~2.4835GHz; it is the expansion regulations for physical layer of higher speed. Compared with GB15629.11, the DSSS physical layer regulation for 2.4GHz and the correlated interface is added. The modulation is complementary
code keying (CKK); the speed is 11Mbit/s and 5.5Mbit/s, and could automatically change among 11Mbit/s?5.5Mbit/s?2Mbit/s and 1Mbit/s.
Key technology for GB 15629.1103-2003
GB 15629.1103-2003:Regulates that the MAC layer of the present wireless LAN expand the support of QOS, and expand in performance and efficiency for GB1569.11.
Key technology for GB 15629.1104-2003
GB 15629.1104-2003:It is the Access Point protocol, which supplies the necessary information for the support of distributed system (such as cruise) in wireless LAN.
Key technology for GB 15629.1105-2003
GB 15629.1105-2003:Regulates that the 2.4GHz physical layer of the wireless LAN adopt the Orthogonal Frequency Division Multiplexing, and the transmitting speed is 6Mbps~54Mbps.
Key technology for GB 15629.1106-2003
GB 15629.1106-2003:Regulates that the MAC layer that has the function of enforcing security should expand in authentication and encryption, thus enforce the security of wireless LAN.
Key technology for GB 15629.1107-2003
GB 15629.1107-2003:Defines and shows the information of wireless and network in order to promote the management and maintenance of wireless and mobile LAN and promote the management of the present wireless LAN.