Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and arrangement in a telecommunication system

A mobile user equipment, component carrier technology, applied in the field of telecommunication systems, can solve problems such as not very reliable

Inactive Publication Date: 2012-05-23
TELEFON AB LM ERICSSON (PUBL)
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although L1 / L2 control signaling is fast, it is not very reliable; it is not even protected by HARQ retransmission

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and arrangement in a telecommunication system
  • Method and arrangement in a telecommunication system
  • Method and arrangement in a telecommunication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] A UE is semi-statically configured to receive a certain set of component carriers. This set is denoted "DL component carrier set". However, in its initial state, the terminal still only monitors one or a few component carriers. These carriers can be denoted as anchor carriers. It is these carriers that can be semi-statically configured or broadcast via system information. For example, the anchor carrier can also be expressed as a "reduced DL component carrier set" or a "default DL component carrier set". Once a terminal receives a DL assignment via PDCCH on its anchor carrier, it starts monitoring all carriers within the set of DL component carriers.

[0019] Figures 5a-5c An embodiment of the method according to the invention as performed by a user equipment is shown. The user equipment monitors 52 a first set of component carriers consisting of a few component carriers as described above. Upon receiving (51 YES) a downlink scheduling assignment via a downlink c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a method and arrangement in a user equipment unit for activation of downlink component carriers. Even though configured to monitor multiple component carriers, a user equipment does not start to monitor them immediately but only one, or very few, carriers. Only if it decodes a DL assignment it will start to monitor multiple component carriers. After one, or possibly multiple, subframes where the UE is not scheduled anymore it falls back to its original state, i.e. it only monitors one (or very few) component carriers.

Description

technical field [0001] The present invention relates to methods and arrangements in telecommunication systems, in particular to methods and arrangements for reconfiguring component carriers monitored by mobile user equipment in E-UTRAN. Background technique [0002] Long Term Evolution of UTRAN (E-UTRAN), also known as LTE, has recently been standardized in Release 8 of the 3GPP specifications. This release supports bandwidths up to 20MHz; however, to meet the upcoming IMT-Advanced requirements, 3GPP has initiated continuing work on LTE, one aspect of which involves supporting bandwidths greater than 20MHz. An important requirement on these future releases is to ensure backward compatibility with LTE Rel-8. This includes spectral compatibility, which implies that the carriers of the advanced version of the 3GPP specification wider than 20 MHz appear to LTE Rel-8 terminals (or user equipment units) as multiple LTE carriers. Each such carrier can be referred to as a componen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/12H04W74/08H04W74/00
CPCH04L5/0044H04L5/0096H04L5/0094H04W24/10H04W72/1289H04W72/23
Inventor R·鲍尔德迈尔Y·贾丁E·达尔曼D·阿斯特利
Owner TELEFON AB LM ERICSSON (PUBL)