Data transmission method and device, data receiving method and device, terminal and base station of non-connected UE

A technology of a data transmission method and a data reception method, applied in the field of communication, can solve the problems of long state transition time, prolonging the data transmission delay of non-connected UE, etc., and achieve the effect of improving data transmission efficiency

Active Publication Date: 2020-02-28
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, if a UE in the unconnected state needs to initiate data transmission, it usually needs to perform a random access process to migrate from the unconnect...

Method used

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  • Data transmission method and device, data receiving method and device, terminal and base station of non-connected UE
  • Data transmission method and device, data receiving method and device, terminal and base station of non-connected UE
  • Data transmission method and device, data receiving method and device, terminal and base station of non-connected UE

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Embodiment Construction

[0042] As mentioned in the background art, in the prior art, a UE in a non-connected state is transferred to a connected state to transmit data, but since the state transition introduces a long delay, the data transmission process needs to be further improved.

[0043] In the prior art, the random access process is mainly divided into contention based random access (Contention Based Random Access, CBRA for short) and contention free random access (Contention Free Random Access, CFRA for short).

[0044] If CFRA is adopted, the network needs to configure dedicated resources. The dedicated resources mainly refer to time-frequency resources and code resources for initiating a random access preamble (preamble), indicated by the parameter ra-PreambleIndex. refer to figure 1 , figure 1 It is a schematic flow chart of random access in the prior art. This random access is CFRA. First, the base station 2 performs operation S0, that is, sends random access preamble configuration info...

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Abstract

The invention discloses a data transmission method and device, a data receiving method and device, a terminal and a base station of non-connected UE. The data transmission method comprises the steps that pre-configuration information is received; and according to the pre-configuration information, transmitting the to-be-transmitted data packet by using common resources. According to the technicalscheme provided by the invention, the data transmission delay of the non-connected UE can be reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a data transmission and reception method and device, a terminal, and a base station of a UE in a non-connected state. Background technique [0002] In the 3rd Generation Partnership Project (the 3rd Generation Partnership Project, referred to as 3GPP) New Radio (NR) communication system, the air interface of the user equipment (User Equipment, referred to as UE) has three states: radio resource control (Radio Resource Control, referred to as RRC) idle state (IDLE), RRC inactive (INACTIVE) state and RRC connected (CONNECTED) state. [0003] The UE in the RRC idle state is not connected to the base station (gNB), and only needs to periodically initiate location updates, cell selection and reselection procedures, and receive paging. The RRC connection state is connected to the network, and the network will configure the UE radio bearer (RB for short) and physical...

Claims

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Application Information

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IPC IPC(8): H04W76/27H04W74/00H04W74/08
CPCH04W76/27H04W74/004H04W74/085H04W74/006H04W16/14H04W74/08
Inventor 徐敏
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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