Cell reselection method, user terminal and readable storage medium

A cell reselection and user terminal technology, applied in the field of communication, can solve problems such as the inability to establish dual connections, heavy loads in LTE cells, unfavorable users to carry out services, etc., and achieve the effect of improving the efficiency of cell reselection and the success rate

Pending Publication Date: 2021-11-26
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] However, the UE is limited in capacity, and a UE can only support dual connectivity under certain combinations of LTE bands (LTE Band) and NR bands (NRBand).
When the UE camps on a frequency band combination (Band Combination, BC) that it does not support, the UE cannot establish dual connectivity after entering the connected state, and these UEs camp behind these LTE cells, which may cause the load of these LTE cells to be overloaded. Heavy, which is not conducive to users' business

Method used

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  • Cell reselection method, user terminal and readable storage medium
  • Cell reselection method, user terminal and readable storage medium

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Embodiment Construction

[0050] After the introduction of NR, because NR is usually deployed in hotspot areas, and NR is usually deployed at a high frequency, the coverage of NR cells is small, and NR cells may not be deployed independently, for example, they may not broadcast system messages and paging messages.

[0051] For a UE configured with EN-DC, the LTE base station connected to it is the primary base station (MN) of the UE, and the NR base station is the secondary base station (SN) of the UE. The UE receives system messages and paging messages from the primary cell (PCell) on the primary base station side. The primary base station is responsible for the transmission of radio resource control (Radio Resource Control, RRC) signaling, and the secondary base station is responsible for the secondary cell group (Secondary CellGroup, SCG) For configuration, both the primary base station and the secondary base station can configure multiple serving cells for the UE.

[0052] In order to guide the UE ...

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Abstract

The invention discloses a cell reselection method, a user terminal and a readable storage medium. The method comprises: when new frequency selectable priority information configured by a serving cell is received, receiving first NR band information broadcasted by the serving cell, wherein the first NR band information is an NR band in EN-DC supported by a PLMN selected by a user terminal; and when the user terminal does not support the NR band in the first NR band information as an EN-D band combination, performing cell reselection by using the original frequency priority information. By applying the scheme, the success rate of establishing the dual connectivity can be improved, and the cell reselection efficiency is further improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a cell reselection method, a user terminal and a readable storage medium. Background technique [0002] For non-independently deployed new air interface (New Radio, NR) cells, user equipment (User Equipment, UE) cannot reside in the new air interface cell in the idle state, and the network supports long term evolution (Long Term Evolution, LTE) and NR A UE connected to (LTE-NR Dual Connectivity, EN-DC) is configured with dual connectivity, so that the UE can use NR for data transmission. A UE that can be configured with LTE and NR dual connectivity is called a UE that supports EN-DC, that is, the UE is allowed to access both an LTE base station and an NR base station at the same time. [0003] For UEs that support EN-DC, in order to make full use of the wireless resources provided by the NR side, it is necessary to guide the UE that supports EN-DC to reside in an LTE serv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/08
CPCH04W36/0007H04W36/08H04W36/0027
Inventor 邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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