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Reconfiguration of Active Component Carrier Sets in Multicarrier Wireless Systems

A technology of component carrier and multi-carrier, applied in the direction of modulated carrier system, multi-frequency code system, wireless communication, etc.

Active Publication Date: 2015-08-12
OPTIS WIRELESS TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the question of whether and how DRX and DTX for one component carrier will be related to DRX and DTX for other component carriers has not been resolved

Method used

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  • Reconfiguration of Active Component Carrier Sets in Multicarrier Wireless Systems
  • Reconfiguration of Active Component Carrier Sets in Multicarrier Wireless Systems
  • Reconfiguration of Active Component Carrier Sets in Multicarrier Wireless Systems

Examples

Experimental program
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Embodiment Construction

[0022] The introduction of carrier aggregation, i.e. multi-carrier operation, into a wireless system requires that a mobile station can flexibly depend on whether it is active (i.e. actually or likely to carry control data and / or traffic data for the mobile station) at a given point in time. Which component carriers (CCs) to reconfigure their radio transceiver resources. A brute-force transceiver design may have multiple independent transceiver entities, for example, one transceiver entity per carrier, or possibly one transceiver entity per contiguous set of carriers. A finer receiver and transmitter architecture specifically tuned for carrier aggregation may not be reconfigurable on a per-CC basis since some transceiver parts are shared for the processing of multiple carriers. However, there are also more sophisticated designs that allow selective activation, deactivation or reconfiguration of various receiver and / or transmitter components to minimize power consumption in res...

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Abstract

In a multi-carrier wireless system, potential problems from reconfiguring mobile station resources to accommodate changes in component-carrier configuration are mitigated by inserting a guard period each time the configuration of component carriers changes, so that transceiver reconfiguration can be carried out without interfering with ongoing transmission. A base station is configured to transmit data to a mobile station according to a first configuration of two or more component carriers, to determine that a change of configuration to a second component-carrier configuration is required, and to signal the change of configuration to the mobile station, using the first configuration of component carriers. The base station then refrains from transmitting data to the mobile station during a pre-determined guard interval of at least one transmission-time interval subsequent to the signaling of the change of configuration. After the guard interval, data is transmitted to the mobile station according to the second component-carrier configuration.

Description

technical field [0001] The present invention relates to wireless communication systems and, in particular, to the operation of mobile stations and base stations in multi-carrier wireless systems in which data can be transmitted to mobile station or transmit data from a mobile station. Background technique [0002] Upcoming cellular system standards such as the so-called "Long Term Evolution" (LTE) systems being developed by participants in the Third Generation Partnership Project (3GPP) will offer a much greater degree of flexibility than currently operating wireless networks. Specifically, systems deployed according to Release 10 of the 3GPP LTE specification will be able to exploit the full potential of the new technologies introduced in LTE better than existing systems in terms of system throughput and per-user throughput, and will be more Well suited for coexistence and deployment in legacy bands. [0003] Mobile stations (user equipment or UEs in 3GPP terminology) des...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04W76/04H04W72/12
CPCH04L5/0053H04L5/001H04L27/2605H04L5/0064H04L5/0087H04L5/0096H04L5/0037H04W24/02H04W72/0453H04W76/28
Inventor G·佩莱蒂尔L·孙德斯特伦
Owner OPTIS WIRELESS TECH LLC
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