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Common uplink feedback channel in non-dedicated-channel states

A downlink and feedback channel technology, applied in the field of user equipment and communication nodes, can solve problems such as lack of HARQ gain

Inactive Publication Date: 2009-07-22
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] So in general, existing solutions are to use shared channels and have a dedicated feedback link for each potential receiver, or not use any feedback at all, resulting in a lack of e.g. HARQ gain

Method used

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  • Common uplink feedback channel in non-dedicated-channel states
  • Common uplink feedback channel in non-dedicated-channel states
  • Common uplink feedback channel in non-dedicated-channel states

Examples

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Embodiment Construction

[0050] The invention is described herein by way of example with reference to a number of embodiments. The invention is described in the context of a cellular communication system, in particular a HSDPA WCDMA / UMTS communication system. However, it will be appreciated that the invention can equally be implemented in any communication system where it is necessary to provide an uplink acknowledgment to a downlink shared channel transmission for users without a dedicated connection, so that this concept can be implemented by Generalized to any downlink shared channel in any technology.

[0051] figure 1 A schematic diagram of a communication system in which embodiments of the present invention may be implemented is shown. The system comprises at least one user equipment (UE), which may be eg a mobile phone, but also eg a laptop computer capable of communication, a personal digital assistant or any other suitable device. As an example, figure 1 4 user equipments 1a to 1d are sho...

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PUM

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Abstract

Disclosed are a user equipment (1 a, 1 b, 1 c, 1 d) and a communications node (3) for communicating data in a communications system including a plurality of user equipments (1 a, 1 b, 1 c, 1 d), as well as a method for communicating the data by a user equipment (1 a, 1 b, 1 c, 1 d) and a method for communicating data by a communications node (3), wherein data are transmitted from the communications node (3) via a downlink shared channel and received by the user equipment (1 a, 1 b, 1c, 1d). The user equipment (1 a, 1 b, 1 c, 1 d) comprises an acknowledger (13) which provides uplink acknowledgements with respect to downlink shared channel transmission for user equipments (1a, 1 b, 1 c, 1 d) without a dedicated connection which acknowledgements are received by an acknowledgement receiver (15) included in the communications node (3). The uplink acknowledgements are transferred through a common uplink feedback channel.

Description

technical field [0001] The invention relates to a user equipment and a communication node for communicating data in a communication system comprising a plurality of user equipment. Furthermore, the invention relates to a user equipment and a method in a communication node for communicating data in a communication system. Background technique [0002] Current 3G systems use the method defined in the first release (Release '99) of the mobile communication standard, which is provided for delivering data packets to user equipment (UE) that does not maintain a dedicated connection. Therefore, in this case, the user equipment does not operate in a dedicated channel state (CELL_DCH state). In this mechanism, a communication node called a Node B uses a Secondary Common Control Physical Channel (S-CCPCH), which carries a Forward Access Channel (FACH) from a Radio Network Controller (RNC). The RNC incorporates the user identification ID into the FACH data packet. All users in the C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W28/04
CPCH04W72/005H04L1/1829H04L1/1671H04W28/04H04W72/30H04L1/1825
Inventor K·兰塔哈J·皮尔斯卡宁H·霍尔马
Owner NOKIA CORP