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Processing of acknowledgment messages in relay network nodes

A relay node, relay network technology, applied in radio relay systems, active electrical relay systems, transmission systems, etc., can solve problems such as the inability to use timing relationships

Active Publication Date: 2017-04-05
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above timing relationship used by UE for delivery of acknowledgment message from PHY to MAC cannot be adopted in relay node as no signaling is provided

Method used

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  • Processing of acknowledgment messages in relay network nodes
  • Processing of acknowledgment messages in relay network nodes
  • Processing of acknowledgment messages in relay network nodes

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Embodiment Construction

[0020] Embodiments of the present invention are described below with reference to the drawings.

[0021] In general, the present invention provides a method for handling acknowledgment messages between a first protocol layer and a second protocol layer in a network node operating as a relay network node, said acknowledgment messages being related to an Automatic Repeat Request (ARQ) procedure, wherein This enables the second protocol layer, when receiving an acknowledgment message from the first protocol layer, to determine to which of several ARQ processes this acknowledgment message relates. Likewise, the invention provides relay network nodes comprising a first protocol layer and a second protocol layer and capable of performing ARQ procedures, adapted to enable the second protocol layer to determine an acknowledgment message when it receives it from the first protocol layer Which of several ARQ processes the message is related to.

[0022] According to an aspect of the pr...

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Abstract

The present invention proposes a novel method for handling acknowledgment messages between a first protocol layer (L1) and a second protocol layer (L2) in a network node operating as a relay network node (RN). The first protocol layer (L1) is lower than the second protocol layer (L2). The acknowledgment message (ACK) is related to the Automatic Repeat Request (ARQ) procedure and the Relay Node (RN) participates in the uplink transmission towards the Network Access Node (eNB). The method comprises the step (10) of receiving a first permission indication by said network access node (eNB) that uplink transmissions at said first protocol layer entity (L1) are permitted and upon receiving the first The step of sending (100) an acknowledgment (ACK) indication towards said second protocol layer entity (L2) after the indication of permission. The invention also proposes a corresponding relay node (RN).

Description

technical field [0001] The invention relates to a method for processing acknowledgment messages between a first protocol layer and a second protocol layer in a network node operating as a relay network node, wherein the first protocol layer is lower than the second protocol layer, the acknowledgment The message is related to an Automatic Repeat Request (ARQ) procedure, and the present invention relates to a relay network node comprising a first protocol layer and a second protocol layer and capable of performing the ARQ procedure. Background technique [0002] In mobile telecommunication systems, the ARQ process, specifically the Hybrid Automatic Repeat Request (HARQ) process, is employed as a method for error control of data transmission, which uses acknowledgments (sent by the receiver to indicate that it has correctly received the data frames or packets) and timeouts (a specified period of time allowed to elapse before an acknowledgment is to be received) to enable reliab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18H04L5/00H04B7/15H04W72/14
CPCH04L1/1607H04L1/1822H04L1/1896H04L5/0053H04L2001/0097
Inventor C.霍伊曼J.厄斯特加尔德R.苏西泰瓦尔
Owner TELEFON AB LM ERICSSON (PUBL)