Method and apparatus for controlling cell aggregation

A cell and serving cell technology, applied to the separation device of the transmission path, the synchronization device, the multiple use of the transmission path, etc.

Active Publication Date: 2016-12-14
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, some cells will not be suitable for aggregation, but UE has no means to indicate to the network which cells are available for aggregation

Method used

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  • Method and apparatus for controlling cell aggregation
  • Method and apparatus for controlling cell aggregation
  • Method and apparatus for controlling cell aggregation

Examples

Experimental program
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Embodiment Construction

[0052] In some parts of this disclosure, the non-limiting term "UE" is used. A UE as referred to herein may be any type of wireless device capable of communicating with a communication network node and / or another wireless device via radio signals. The UE may be a target device (here, a target refers to a given device being located), a device-to-device (D2D) UE, a machine-type communication (MTC) UE or a UE with machine-to-machine M2M communication capabilities, a wireless communication interface equipped Sensors or other embedded devices, tablets, mobile terminals, smartphones, laptops, network adapters, USB adapters, modems, CPE, etc.

[0053] Also, in some embodiments, generic terms such as "radio network node", "network node" or "NW node" are used. Unless specifically indicated or clear from the context, all such references should be understood to refer broadly to any of the following various network node types, such as base stations, radio base stations, base transceiver ...

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Abstract

According to one aspect of the teachings herein, a wireless device operating in a wireless communication network determines the difference in signal arrival times with respect to first and second cells, and the device and / or the involved wireless communication network uses the difference to control one or more aspects of Carrier Aggregation, CA, operation for the wireless device. For example, there may be a maximum timing difference defined for the wireless device, e.g., as a function of its inherent capabilities, and the wireless device may evaluate the timing difference of a second cell that is a candidate of aggregation into its CA configuration, or that may be a candidate for activation as a serving cell within a CA configuration, with respect to a first cell that is already in use as a serving cell for the wireless device.

Description

technical field [0001] The present invention relates generally to wireless communication networks, and in particular to controlling cell aggregation in such networks. Background technique [0002] Release 10 of the 3GPP standard specification, the Evolved UMTS Terrestrial Radio Access Network or E-UTRAN standard, introduced carrier aggregation (or CA) as a means of enabling E-UTRAN to meet the requirements for 4G services up to 1000 Mbit / s, And also allows operators to provide good user experience with small and dispersed spectrum allocations (eg 20MHz allocation or less) based on aggregating the dispersed allocations into 10, 20MHz or larger aggregated allocations. [0003] In the context of CA operation, a user equipment or UE is connected to a serving cell called a primary cell (PCell), which is on a so-called primary component carrier or PCC. Mobility is managed with respect to the PCC, but in case the UE uses services requiring high throughput, the network may activate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0069H04L5/0098H04L5/0007H04W72/04H04W56/0005H04W24/10H04W92/20H04W72/27
Inventor 约金·阿克塞蒙迈克尔·赫尔曼帕特里克·古斯塔夫松穆罕默德·卡兹米沃尔特·穆勒
Owner TELEFON AB LM ERICSSON (PUBL)
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