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Physical uplink control channel cells in a communication network using carrier aggregation

一种通信网络、载波聚合的技术，应用在传输路径子信道分配、网络规划、无线通信等方向，能够解决延迟、中断通信等问题

Active Publication Date: 2017-09-26
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interrupts communication and causes delays

Method used

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  • Physical uplink control channel cells in a communication network using carrier aggregation
  • Physical uplink control channel cells in a communication network using carrier aggregation

Examples

Experimental program
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Embodiment Construction

[0028] Recently, there has been a method in the field of carrier aggregation (CA) for a UE supporting uplink carrier aggregation in that an SCell is configured with a PUCCH.

[0029] In the following, it is assumed that serving cells are grouped in a PUCCH group (PUG): for each SCell there is an associated cell with a configured PUCCH. For each cell carrying a PUCCH, the group of cells that are using this PUCCH is called a PUG.

[0030] When PUCCH is configured on two cells: PCell (Cell A) and SCell (Cell B), it may happen that PCell experiences some problems. For example, the link is broken and the UE cannot receive any signal from this cell.

[0031] According to the invention, two aspects are provided. According to the first aspect, more than one PUG is configured. According to the second aspect, in case of failure of the master PUG, the PUGs are exchanged.

[0032] More precisely, in the first aspect, according to an embodiment of the invention, two PUGs are configured...

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Abstract

A communication is executed (S31) between a user equipment and a communication network based on carrier aggregation using a first group of at least two PUCCH groups, the first group comprising a primary serving cell that carries a first PUCCH, and first serving cells which use the first PUCCH, and a second group of the at least two PUCCH groups, the second group comprising a secondary serving cell that carries a second PUCCH, and second serving cells which use the second PUCCH. In case a predetermined condition occurs (S32), the communication is continued (S33) by exchanging the first group by the second group wherein the secondary serving cell that carries the second PUCCH becomes the primary serving cell and vice versa.

Description

technical field [0001] The present invention relates to Physical Uplink Control Channel (PUCCH) cells in communication networks using carrier aggregation. Background technique [0002] In E-UTRA, Carrier Aggregation (CA) has been introduced, where two or more Component Carriers (CCs) are aggregated in order to support wider transmission bands up to 100 MHz. In CA, it is possible to configure a UE to aggregate different numbers of CCs originating from the same eNodeB (eNB) of the communication network and possibly with different bandwidths in uplink (UL) and downlink (DL). When in CA, the UE is always configured with a primary cell (PCell). PCell is used for security, NAS mobility, and transmission of PUCCH (including scheduling request). All other configured CCs are called secondary cells (SCells) and do not have PUCCH configured. Furthermore, in CA, the possibility to deactivate CC / SCell in order to reduce UE power consumption is supported. The UE monitoring activity of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04L5/0098H04L5/001H04L5/0053H04W76/15H04W76/34H04W36/00H04L12/2863H04W72/21H04L41/0654H04W16/32
Inventor G·德卡尔雷奥B·P·塞比尔吴春丽
Owner NOKIA NETWORKS OY