此專利為IEEE 802.16j MMR相關專利之一. 主要處理WiMAX擷取網路中,兩個行動裝置MS1與MS2如何進行direct data communication (or,稱為CC--cross communication.--因MS1若與MS2共同連結到RS-i,則MS1的資料可不經MMR-BS直接透過RS-i來cross到MS2)所需解決之金鑰交換問題以確保其資料傳輸時之安全性. 先前透過BS傳送時,BS會負責將MS1傳來的資料用MS1的key解密;再用MS2的key加密傳給MS2. 透過CC面臨的一個主要問題在RS-i不像BS一樣,有maintain 所有的 security context. 故 C802.16j-06/200r1建議在BS與RS-i間建立一key exchange機制,並將存在BS的,與MS1/MS2相關的security context,由BS轉給RS-i.如此,則RS亦可如同BS-i般做加解密的動作, i.e. RS-i會負責將MS1傳來的資料用MS1的key解密;再用MS2的key加密傳給MS2. 如此, BS則需透過複雜的BSRS key exchange protocol, 隨時securely將cached在RS-i的security context與BS端的security context做sync. 此專利是透過適當的 1. SFID mapping, 將MS1 UL-connection的SFID與MS2 DL-connection的SFID mapped成一樣 (same service flows) 2. SAID mapping, 將MS UL-connection的SAID與MS2 DL-connection的SAID mapped成一樣 (same security association) and vice versa
技術摘要-英文
A communication system for transmitting data of a first mobile station to a second mobile station is provided. The communication system includes a base station and a relay device. The base station is utilized for setting an uplink and a downlink of the data to correspond to a first connection ID and a second connection ID respectively and for transmitting a traffic encryption key to the first and second mobile stations so that the first and second mobile stations share the traffic encryption key. The relay device is coupled to the base station and the first and second mobile stations via wireless communication, and utilized for receiving the data encrypted by the traffic encryption key and transferring the data of the first mobile station to the second mobile station according to the first and second connection IDs without being via the base station.
此專利為IEEE 802.16j MMR相關專利之一. 主要處理WiMAX擷取網路中,兩個行動裝置MS1與MS2如何進行direct data communication (or,稱為CC--cross communication.--因MS1若與MS2共同連結到RS-i,則MS1的資料可不經MMR-BS直接透過RS-i來cross到MS2)所需解決之金鑰交換問題以確保其資料傳輸時之安全性. 先前透過BS傳送時,BS會負責將MS1傳來的資料用MS1的key解密;再用MS2的key加密傳給MS2. 透過CC面臨的一個主要問題在RS-i不像BS一樣,有maintain 所有的 security context. 故 C802.16j-06/200r1建議在BS與RS-i間建立一key exchange機制,並將存在BS的,與MS1/MS2相關的security context,由BS轉給RS-i.如此,則RS亦可如同BS-i般做加解密的動作, i.e. RS-i會負責將MS1傳來的資料用MS1的key解密;再用MS2的key加密傳給MS2. 如此, BS則需透過複雜的BSRS key exchange protocol, 隨時securely將cached在RS-i的security context與BS端的security context做sync. 此專利是透過適當的 1. SFID mapping, 將MS1 UL-connection的SFID與MS2 DL-connection的SFID mapped成一樣 (same service flows) 2. SAID mapping, 將MS UL-connection的SAID與MS2 DL-connection的SAID mapped成一樣 (same security association) and vice versa
技術摘要-英文
A communication system for transmitting data of a first mobile station to a second mobile station is provided. The communication system includes a base station and a relay device. The base station is utilized for setting an uplink and a downlink of the data to correspond to a first connection ID and a second connection ID respectively and for transmitting a traffic encryption key to the first and second mobile stations so that the first and second mobile stations share the traffic encryption key. The relay device is coupled to the base station and the first and second mobile stations via wireless communication, and utilized for receiving the data encrypted by the traffic encryption key and transferring the data of the first mobile station to the second mobile station according to the first and second connection IDs without being via the base station.