TCI automatic modification method and device, storage medium and terminal

An automatic and modified technology, applied in the directions of transmission path sub-channel allocation, digital transmission system, signaling allocation, etc., which can solve the failure of the UE radio link, the inability to effectively ensure smooth communication between the UE and the network, the inability to correctly receive system messages and Random access response and other issues to avoid communication interruption and keep the wireless link unblocked

Active Publication Date: 2020-05-08
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, after the base station modifies the TCI of CORESET 0, when the SSB or CSI-RS signal corresponding to CORESET 0 is very poor, or the UE cannot detect it, the UE cannot correctly receive the system information and the random access response, causing the UE to A wireless link failure occurs, interrupting communication with the network
[0004] The existing technology cannot effectively guarantee the smooth communication between the UE and the network after the base station modifies the TCI of CORESET 0

Method used

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  • TCI automatic modification method and device, storage medium and terminal
  • TCI automatic modification method and device, storage medium and terminal
  • TCI automatic modification method and device, storage medium and terminal

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Embodiment Construction

[0025] Those skilled in the art understand that, as mentioned in the background, the existing technology cannot effectively ensure smooth communication between the UE and the network after the base station modifies the TCI of CORESET 0.

[0026] Specifically, in the fifth-generation mobile communication technology (5th-Generation, referred to as 5G), the bandwidth of a cell can be very large, for example, the maximum bandwidth can reach 400MHz, far exceeding that of the long-term evolution (Long Term Evolution, referred to as LTE) technology. 20MHz cell bandwidth. If all user equipment (User Equipment, referred to as UE) need to access the bandwidth of 400MHz when accessing the network, not only will the manufacturing cost of the UE be high, but also large power consumption will be caused.

[0027] Therefore, the idea of ​​Bandwidth Part (BWP for short) is introduced in 5G. A cell can contain multiple BWPs, and each BWP occupies a limited bandwidth (including downlink (Down Li...

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Abstract

The invention discloses a TCI automatic modification method and device, a storage medium and a terminal. The method comprises the steps that whether automatic modification operation is triggered or not is judged according to the working state and / or channel condition of UE, when the judgment result shows that the automatic modification operation is triggered, the TCI of the current CORESET 0 is deleted, and the TCI of the automatically modified CORESET 0 is determined according to a TCI mechanism for determining the CORESET 0 during initial access. According to the scheme provided by the invention, the UE can accurately receive the updated system message and the random access response, the wireless link between the UE and the network is kept unblocked, and the interruption of communicationwith the network is avoided.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a TCI automatic modification method and device, a storage medium, and a terminal. Background technique [0002] According to the resolution adopted by the recent 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short) meeting, the base station is supported to modify the control resource set through the Medium Access Control (MAC) control element (Control Element, CE for short) 0 (Control Resource Set 0, CORESET 0 for short) transmission configuration indicator (Transmission Configuration Indicator, TCI for short). However, in practical applications, this resolution may lead to some problems as follows: [0003] Because CORESET 0 is usually the control resource set for the user equipment (User Equipment, referred to as UE) to receive System Information Block 1 (System Information Block 1, referred to as SIB1) and other system informat...

Claims

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Application Information

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IPC IPC(8): H04W72/08H04L5/00
CPCH04L5/0048H04L5/0053H04L5/006H04W72/542
Inventor 邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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