User terminal and data transmission method

A technology of user terminal and transmission method, applied in the field of user terminal and data transmission

Active Publication Date: 2017-05-31
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no feasible technical solution for how the UE performs data transmission with the base station in the inactive state

Method used

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  • User terminal and data transmission method

Examples

Experimental program
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Embodiment Construction

[0057] figure 1 It is a schematic diagram of signaling interaction in the process of data transmission between UE and base station in the prior art. refer to figure 1 , in LTE or 5G, the UE accesses the network when there is a need for data transmission, establishes an RRC connection with the base station, and then establishes a data radio bearer to transmit data. The specific data transmission process is as follows:

[0058] Step 101, the UE sends RRC connection request signaling to the base station.

[0059] The UE initiates random access in the serving cell, and sends an RRC connection request to the base station during the random access process. Wherein, the base station may be a base station in LTE, or a base station in 5G.

[0060] Step 102, the base station sends RRC connection establishment signaling to the UE.

[0061] If the random access is successful, the base station will send RRC connection establishment signaling to the UE. During the establishment of the ...

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Abstract

The invention provides a user terminal and a data transmission method. The method comprises: before a user terminal sends first data, whether the user terminal needs to be switched to a connection state is determined; and according to a determination result, the user terminal adjusts the state of the terminal itself and sends the first data to a base station based on the adjusted state. Therefore, data transmission between UE and a base station in an in-active state can be realized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a user terminal and a data transmission method. Background technique [0002] In the Long Term Evolution (LTE) system, when a user equipment (UE) has a service demand, it will access the network to establish a radio resource control (Radio Resource Control, RRC) connection, and then establish a dedicated bearer for transmission data. [0003] After the UE enters the connected state, the base station will assign necessary parameters to the UE, such as parameters related to security algorithms, physical layer (Layer 1), data link layer (Layer 2), and network layer (Layer 3) Configuration parameters, etc. For the established bearer, the base station needs to know the channel information between the core network and the core network established for the bearer, that is, the relevant information of the GTP (GPRS Tunneling Protocol) tunnel. The above parameters are col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/04
CPCH04W76/27
Inventor 邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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