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Method and arrangement in a communication system

A technology for confirming information and subframes, which is applied in the field of confirmation feedback and can solve problems such as no solution.

Active Publication Date: 2011-07-13
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0052] When multiplexing of multiple ACK / NAK occurs, the problem is that currently only 1-bit or 2-bit feedback of ACK / NAK feedback is defined, and for more than 3 bits, there is no solution

Method used

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  • Method and arrangement in a communication system
  • Method and arrangement in a communication system

Examples

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Embodiment Construction

[0075] The present invention is defined as methods and arrangements in a base station and methods and arrangements in a terminal, which can be implemented in the embodiments described below. This invention may, however, be embodied in many different forms and is not to be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will convey information to those skilled in the art. The skilled person conveys the scope of the invention.

[0076] Other objects and features of the present invention will become apparent from the following detailed description considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed for purposes of illustration only and not as limitations of the invention, which reference is made to the appended claims. It is also to be understood that the drawings are not necessarily drawn to scale and t...

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Abstract

Provided is a method and arrangement in a terminal for receiving data packets from a base station and providing feedback to the base station. The feedback concerns the reception status of the received data packets and may comprise an ACK / NAK. The method comprises receiving and decoding data packets from the base station in a subframe. It is further established whether any data packet within the received subframe is not correctly received and detected whether any subframe, expected to be received, has been missed. Further, acknowledgement information ACK / NAK is generated, a scrambling code selected with which the ACK / NAK is scrambled. The scrambled ACK / NAK is then sent to the base station, concerning the reception status of the data packets within the received subframes.

Description

technical field [0001] The invention relates to methods and arrangements in a base station and to methods and arrangements in a mobile terminal. Specifically, it involves providing acknowledgment feedback to the base station regarding the reception status of data packets previously received from the base station. Background technique [0002] A key requirement for Long Term Evolution (LTE) in 3GPP wireless communication systems is frequency flexibility for transmissions over radio links between radio base stations and mobile terminals. For this purpose, carrier bandwidths between 1.4 MHz and 20 MHz are supported, both Frequency Division Duplex (FDD) and Time Division Duplex (TDD), so that paired and unpaired spectrum can be used. With FDD, the downlink, ie the link from the base station to the mobile terminal, and the uplink, ie the link from the mobile terminal to the base station, use different frequencies called "paired spectrum" and can therefore transmit simultaneously...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/00
CPCH04L1/0072H04L1/1607H04L1/1861H04L1/1642H04L1/009H04W74/004
Inventor D·拉森D·阿斯特利
Owner TELEFON AB LM ERICSSON (PUBL)
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