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Multiple uplink control channel transmission with reduced cubic metric

A link control channel and control information technology, applied in the field of wireless communication systems, can solve problems such as not being useful

Active Publication Date: 2015-09-23
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is achieved by using multiple transmit antennas, and is therefore not useful for UEs with only one transmit antenna, as will be the case for many Rel-8 UEs, and likely some early Rel-9 UEs also so

Method used

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  • Multiple uplink control channel transmission with reduced cubic metric
  • Multiple uplink control channel transmission with reduced cubic metric
  • Multiple uplink control channel transmission with reduced cubic metric

Examples

Experimental program
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Embodiment Construction

[0062] To improve the UL ACK / NAK payload for the case where the UE occupies two (or more) PUCCH resources per subframe, the inventors believe that a valuable solution would preferably have a low cubic metric, which would will be backward compatible by reusing the channelization structure of Rel-8, and will support at least four bits per subframe in order to satisfy a total of 16 ACK.NAK / DTX states (for different ACK / NAK / DTX states, see For example part 10 of 3GPP TS 36.213, v8.5.0 mentioned above). PUCCH resources can be considered to be defined by a combination of cyclic shifts and cover codes. The exemplary control signaling scheme detailed below can increase the payload / capacity on the PUCCH in any format 1a / 1b compared to the current payload / capacity on the existing PUCCH of those same formats used in Rel-8 .

[0063] Discontinuous Transmission DTX and Cubic Metric CM are terms well known in the art; DTX refers to predefined codewords of the Physical Downlink Shared Chan...

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Abstract

It is determined that there are X uplink control channel resources available for uplink signaling. Each of those X uplink control channel resources are sub-channelized into a plurality of sub-channels that each defines a unique time instant or point in time. For each of Y units of control information there is selected a unique combination of one of the sub-channels and a modulation (X and Y are each integers greater than one). The Y units of control information are sent on the X uplink control channel resources according to the respectively selected combinations. By example the uplink resources may be an ACK / NAK / DTX bit on a PUCCH. In one example the sub-channels are individual slots of a PUCCH. In another example the sub-channels are the reference-signal part and the data part of a single PUCCH slot.

Description

technical field [0001] The exemplary and non-limiting embodiments of the present invention relate generally to wireless communication systems, methods, apparatus and computer programs, and more particularly to control signaling in wireless communication systems. Background technique [0002] This section is intended to provide a background or context to the invention that is recited in the claims. The illustrations herein may include concepts that may be pursued, but not necessarily concepts that have been previously conceived or pursued. Therefore, unless otherwise indicated herein, what is described in this section is not prior art to the description and claims in this application and is not admitted to be prior art by inclusion in this section. [0003] The following abbreviations that may be found in the specification and / or drawings are defined as follows: [0004] 3GPP Third Generation Partnership Project [0005] ACK response [0006] CC component carrier [0007...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0053H04L5/0055H04L5/001H04L5/0007H04L5/00H04L27/26
Inventor P.陈C.Y.高E.T.蒂罗拉K.P.帕祖科斯基
Owner NOKIA NETWORKS OY