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Method, device and storage medium for mobility measurement in radio access network

A technology of radio access and wireless devices, applied in wireless communication, network data management, electrical components, etc., can solve problems such as incompatibility of 5G concepts

Active Publication Date: 2021-06-25
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may be accompanied by the problem that currently known concepts of mobility measurements may not be compatible with the foreseen 5G concepts

Method used

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  • Method, device and storage medium for mobility measurement in radio access network
  • Method, device and storage medium for mobility measurement in radio access network
  • Method, device and storage medium for mobility measurement in radio access network

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Embodiment Construction

[0039] According to some embodiments of the invention, the radio access network (eg network node) may send the MMR assignment to the wireless device. To this end, the network node may have modulated the MMR assignment with the demodulation reference signal before sending the MMR assignment. The MMR assignment can be demodulated by the wireless device using a demodulation reference signal. The MMR assignment may indicate that all or some of these demodulation reference signals will also be used as mobility reference signals. Accordingly, these reference signals are referred to throughout this application as "demodulation and mobility reference signals" in order to indicate the dual purpose of the reference signals. Note that the MMR assignment may also indicate further mobility reference signals to be used by the wireless device for mobility measurements, but these mobility reference signals may not be used for demodulation of the MMR assignment.

[0040] These demodulation a...

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Abstract

In order to provide a more efficient method for mobility measurements in a radio access network, a method of performing mobility measurements in a wireless device operating in a radio access network is provided. A mobility measurement resource assignment is received (S10) identifying one or more demodulation and mobility reference signals of a predetermined set of demodulation and mobility reference signals. The mobility measurement resource assignment is demodulated (S14) using one or more demodulation and mobility reference signals of a predetermined set of demodulation and mobility reference signals. Also, one or more mobility measurement quality values ​​are determined (S14) from the identified one or more demodulated and mobility reference signals. Other aspects of the invention relate to a method in a network node of a radio access network, to a wireless device adapted to perform mobility measurements, to a network node for a radio access network, to a computer program and to a computer program product.

Description

technical field [0001] The present invention relates to a method of performing mobility measurements in a wireless device operating in a radio access network, to a related wireless device, to a method of performing mobility measurements in a network node of a radio access network, to a related network node, and to Related Computer Programs and Computer Program Products. Background technique [0002] In many wireless communication networks, a reference signal RS for demodulation of control and data signals is required for good performance. In LTE, the so-called cell-specific reference signal CRS is initially used as demodulation RS for both the PDSCH physical downlink shared channel (ie data channel) and the PDCCH physical downlink control channel (ie control channel). The PDCCH is used to convey downlink transmission assignments and uplink transmission assignments (which are often referred to as UL grants) from the eNB to the user equipment UE, where the downlink assignment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/20
CPCH04L1/20H04L5/0048H04W8/02H04W24/10
Inventor M.黑斯勒P.弗伦奇J.弗勒伯格奥尔松
Owner TELEFON AB LM ERICSSON (PUBL)