Gateway for interconnecting networks

所描述的是包括网关(14)的传输系统(10)，网关(14)用于将第一和第二网络(12，16)互连。网关(14)包括第一和第二业务质量转换装置(20，24)以及用于将第一和第二业务质量转换装置(20，24)互连的互连装置(22)。第一业务质量转换装置(20)被设置为从第一网络(12)接收具有相关输入业务质量的输入数据(19)，并将输入数据(19)转换成具有相关互连业务质量的互连数据(21)。第一业务质量转换装置(20)还被设置为将互连数据(21)提供给互连装置(22)。互连装置(22)被设置为从第一业务质量转换装置(20)接收互连数据(21)并将互连数据(21)提供给第二业务质量转换装置(24)。第二业务质量转换装置(24)被设置为从互连装置(22)接收互连数据(21)并将互连数据(21)转换成具有相关输出业务质量的输出数据(23)。第二业务质量转换装置(24)还被设置为将输出数据(23)提供给第二网络(16)。网关(14)的特征在于，互连数据(21)还包含表示输入业务质量的信息，以及第二业务质量转换装置(24)被设置为根据所述信息将互连数据(21)转换成输出数据(23)。通过引入此信息，第二业务质量转换装置(24)可以有效地将互连数据映射到输出数据。 Described is a transmission system (10) comprising a gateway (14) for interconnecting first and second networks (12,16). The gateway (14) comprises first and second quality of service translation means (20,24) and interconnection means (22) for interconnecting the first and second quality of service translation means (20,24). The first quality of service translation means (20) are arranged for receiving input data (19) having an associated input quality of service from the first network (12) and for translating the input data (19) into interconnection data (21) having an associated interconnection quality of service. The first quality of service translation means (20) are further arranged for supplying the interconnection data (21) to the interconnection means (22). The interconnection means (22) are arranged for receiving the interconnection data (21) from the first quality of service translation means (20) and for supplying the interconnection data (21) to the second quality of service translation means (24). The second quality of service translation means (24) are arranged for receiving the interconnection data (21) from the interconnection means (22) and for translating the interconnection data (21) into output data (23) having an associated output quality of service. The second quality of service translation means (24) are further arranged for supplying the output data (23) to the second network (16). The gateway (14) is characterized in that the interconnection data (21) further comprise information representative of the input quality of service and in that the second quality of service translation means (24) are arranged for translating the interconnection data (21) into the output data (23) in dependence on the information. By incorporating this information the second quality of service translation means (24) can efficiently map the interconnection data onto the output data.