阅读说明：本技术 数据传输的方法、终端设备和网络设备 (Data transmission method, terminal equipment and network equipment ) 是由 唐海 于 2017-09-22 设计创作，主要内容包括：本申请实施例涉及数据传输的方法、终端设备和网络设备。该方法包括：接收网络设备发送的第一下行数据包,该第一下行数据包包括为第一预设值的第一RQI；根据该第一预设值,将第一映射关系和第二映射关系的映射规则均保持不变,并接收该网络设备发送的RRC消息,该第一映射关系为IP流到QoS流的映射关系,该第二映射关系为QoS流到DRB的映射关系,该RRC消息包括目标映射规则；根据该RRC消息,将该第二映射关系的映射规则确定为该目标映射规则。本申请实施例的数据传输的方法、终端设备和网络设备,能够灵活配置QoS映射关系。(The embodiment of the application relates to a data transmission method, terminal equipment and network equipment. The method comprises the following steps: receiving a first downlink data packet sent by a network device, wherein the first downlink data packet comprises a first RQI (maximum likelihood indicator) which is a first preset value; according to the first preset value, keeping the mapping rules of a first mapping relation and a second mapping relation unchanged, and receiving an RRC message sent by the network equipment, wherein the first mapping relation is the mapping relation from an IP flow to a QoS flow, the second mapping relation is the mapping relation from the QoS flow to a DRB, and the RRC message comprises a target mapping rule; and determining the mapping rule of the second mapping relation as the target mapping rule according to the RRC message. The data transmission method, the terminal device and the network device of the embodiment of the application can flexibly configure the QoS mapping relation.)