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Auxiliary cell reselection process and its equipment

A cell reselection and user equipment technology, applied in wireless communication, electrical components, etc., can solve the problem of UE battery consumption

Active Publication Date: 2021-04-09
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Setting the threshold too high will result in a lot of repeated measurements and attempts at cell reselection, which will drain the UE battery

Method used

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  • Auxiliary cell reselection process and its equipment
  • Auxiliary cell reselection process and its equipment
  • Auxiliary cell reselection process and its equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] Throughout the figures, the same reference numerals are used for similar or corresponding elements.

[0046] To better understand the proposed technique, it may be useful to start with a brief overview of the basic functions of selection and reselection.

[0047] The 3rd Generation Partnership Project (3GPP) is currently working on the standardization of the Evolved Universal Terrestrial Radio Access System (E-UTRAN) radio access system, also known as LTE (Long Term Evolution) This system evolves into the work of the fifth generation radio access system, also called New Radio (NR). In the following, the solution is exemplified in LTE, but also valid in other systems (eg NR).

[0048] LTE is part of the Evolved Packet System (EPS) and also forms the Evolved Packet Core (EPC). The structure of the EPS system is in figure 1 is schematically shown in . The cellular communication system 1 comprises a radio access node 23 (eNB) and an EPS node 30 (MME / S-GW). eNB 23 is pa...

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PUM

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Abstract

A method for assisting a cell reselection procedure in a cellular communication system, comprising obtaining (S1) information comprising radios associated at least with a serving cell and optionally also with at least one neighboring cell of the serving cell conditions and / or user device populations. The acquired information is compared with the criteria used for the enforced cell reselection procedure (S2). Initiating (S3) the enforcement of a cell reselection procedure for at least one user equipment in the serving cell or for increasing the The action of the probability of the cell reselection procedure of at least one user equipment. Apparatuses for performing such methods are also disclosed.

Description

technical field [0001] The proposed technique generally relates to cell selection in a cellular communication system, and in particular to a method for assisting a cell reselection procedure and its nodes. Background technique [0002] In a cellular communication system, a user equipment (UE) may camp in a cell in a so-called idle mode. The UE is associated with a cell, but has no permanent active link established with the cell's radio node. Hence, the UE can save energy by avoiding frequent communication with radio nodes. However, even when camping on a serving cell in idle mode, the UE must periodically search for a better serving cell. This inevitably involves powering up the circuitry and controller. [0003] In current Narrowband-IoT (NB-IoT) solutions, measurement reporting by UEs and any handover procedures are not defined to support connected-mode mobility of UEs between cells. This is due to the requirement to keep both cost and energy consumption of the UE at a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/38H04W36/22H04W36/30
CPCH04W36/22H04W36/38H04W48/20H04W36/0061
Inventor E.派特尔松E.安德尔松N.帕尔姆
Owner TELEFON AB LM ERICSSON (PUBL)