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ACK/NACK message transmission method and user equipment device

A technology of user equipment device and feedback message, which is applied to the separation device of the transmission path, the multiple use of the transmission path, and the transmission system, etc., which can solve the problems of lack of feedback, lack of feedback transmission, and lack of reception quality, so as to improve the reception quality and increase the quality of reception. Reliability, effect of improving reception quality

Pending Publication Date: 2022-02-25
IPCOM GMBH & CO KG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Known techniques for transmitting feedback to a single receiver through multiple transmitters lack the ability for ACKs or NACKs transmitted simultaneously by different transmitters to appear as one ACK or NACK and lack the ability for ACKs transmitted simultaneously by different transmitters ( or NACK) to cause improved reception quality at the receiver, so feedback cannot be passed from multiple base stations to a single UE

Method used

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  • ACK/NACK message transmission method and user equipment device
  • ACK/NACK message transmission method and user equipment device
  • ACK/NACK message transmission method and user equipment device

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Embodiment Construction

[0025] refer to figure 1 , in the first embodiment, three base stations BS n 、BS n+1 and BS n+2 It is configured as a single frequency network for UE, that is, the base station transmits data to the UE and receives data from the UE at the same time. To the UE, the overlapping signals from the base stations effectively appear as originating from one single cell.

[0026] An automatic repeat request (ARQ) procedure is applied in the uplink. Each base station involved transmits individual feedback for received uplink packets to the transmitting UE.

[0027] It is an object of the present invention that an ACK of a single transmission should be reliably detected even if several NACKs are transmitted simultaneously. This is important to avoid unnecessary retransmissions. It is also preferred that a reliable detection of not transmitting an ACK corresponding to a particular transmitted packet is provided. This is important to ensure that necessary retransmissions are not miss...

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Abstract

The present invention provides a method for providing feedback from a plurality of base stations to a user equipment device to indicate whether a data transmission has been successfully received, wherein the plurality of base stations use a common radio resource, the base stations each transmit a positive acknowledgement by using a first feedback resource in the event of successful reception of the data transmission and transmit a negative acknowledgement by using a second feedback resource in the event of unsuccessful reception of the data transmission, the first and second feedback resources are mutually orthogonal, and the first and second feedback resources are common to the plurality of base stations.

Description

[0001] This case is a divisional application of a patent application with an application date of November 28, 2016, an application number of 201680070802.7, and an invention title of "ACK / NACK message transmission in a single frequency network". technical field [0002] The present invention relates to single frequency networks in which a user equipment device receives simultaneous transmissions from multiple base stations, the transmissions from the base stations using the same radio resources. Background technique [0003] Multiple base stations form a single frequency network and thus appear as a single cell to the mobile. In addition, according to the movement of the UE, the base station can be added to the set of base stations currently transmitting data to a specific mobile device (UE), and the base station can be removed from the set of base stations currently transmitting data to a specific mobile device (UE) to Covering the area where the UE is expected to move next...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16H04L5/00
CPCH04L1/18H04L1/16H04L5/0055H04W36/00692H04L1/1861H04L5/0007H04L5/0016H04L5/0028H04L2001/0093H04L1/1812H04W72/04H04L1/1864
Inventor M·别纳斯A·施密特M·汉斯A·卢夫特
Owner IPCOM GMBH & CO KG
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