Method and apparatus for transmitting data

Abstract

The invention discloses a method and device for transmitting data, which belongs to the field of communication technology. The method includes: a source access network node selects a target node from preconfigured nodes, and sends a relocation request message to the target node, where the relocation request message is used to transfer the source access network node to be transmitted. The service data is relocated to the target node; the source access network node sends the node information of the target node to the user equipment UE, so that the UE establishes a connection with the target node based on the node information of the target node. and perform data transmission of the services to be transmitted. The present invention does not require the participation of CN and reduces the complexity of the process. In this way, when the service data rate fluctuates, the bearer can be quickly changed according to the data rate, thereby improving the QoS of data transmission.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for transmitting data. Background technique [0002] With the development of mobile communication systems, the transmission rate and service quality that the system can provide are getting higher and higher, and user services also put forward higher and higher requirements for transmission rates. In order to ensure general The rate of users, while providing higher throughput for some users, 3GPP introduced CA (CarrierAggregation, carrier aggregation) technology, through carrier aggregation technology UE (User Equipment, user equipment) can use multiple CC (Component Carrier, member Carrier) for uplink and downlink communication, thus supporting high-speed data transmission. Among them, according to the types of carriers to be aggregated, there are two types: carrier aggregation of the same system and carrier aggregation of different systems. Carrier a...

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Problems solved by technology

[0004] It can be seen from the above process that after the bearer of the access layer is established in the prior art, if the bearer needs to be replaced to another access layer system, the bearer deletion process can only be triggered through the CN side, and then another access layer Re-establishing a new wireless bearer in the system involves the participation of the CN side, and the process is relatively complicated. When the service data rate fluctuates, it is impossible to quickly replace the bearer or relocate the data to the target node according to the data volume.

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