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Contention-based multi-layer transmission

A technology for transmission opportunities and data, applied in transmission systems, digital transmission systems, and multiple use of transmission paths, which can solve problems such as reduced service quality and no change in message robustness.

Pending Publication Date: 2021-08-31
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are contention procedures to support different ACs, such as Enhanced Distributed Channel Access (EDCA) of the Wi-Fi standard IEEE 802.11e, the current transmission procedure does not vary in terms of robustness between sent messages
Therefore, the highest AC additionally prevents other ACs from accessing the medium, resulting in further degradation of the quality of service (QoS) of other ACs

Method used

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  • Contention-based multi-layer transmission
  • Contention-based multi-layer transmission
  • Contention-based multi-layer transmission

Examples

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Embodiment Construction

[0087] In the following description, for purposes of explanation and not limitation, specific details are set forth, such as a particular network environment, in order to provide a thorough understanding of the techniques disclosed herein. It will be apparent to those skilled in the art that the technique may be practiced in other embodiments that depart from these specific details. Furthermore, although the following embodiments are primarily described for wireless local area network (WLAN) implementations according to the standards family IEEE 802.11, it should be apparent that the techniques described herein may also be implemented for any other radio communication technology, including New Radio (NR) or 5G approach, 3GPP LTE (e.g., LTE-Advanced or related radio access technologies such as MulteFire), for Bluetooth according to the Bluetooth Special Interest Group (SIG), especially Bluetooth Low Energy, Bluetooth Mesh and Bluetooth Broadcast, for Bluetooth Implemented accor...

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Abstract

A technique for performing a multi-layer transmission (208) of data on a radio frequency is described. The multi-layer transmission (208) comprising multiple layers (306) each having a different robustness on the radio frequency. As to a method aspect of the technique, a contention procedure is performed with respect to each of a plurality of access classes, ACs (302), for accessing the radio frequency. The multi-layer transmission (208) is performed upon success of the contention procedure of at least one of the ACs (302). In a transmission opportunity defined by the successful contention procedure, data associated with the successful AC is transmitted on a main layer of the multi-layer transmission (208) simultaneously with data associated with at least one further AC on at least one further layer, which is less robust than the main layer of the multi-layer transmission (208).

Description

technical field [0001] The present disclosure relates to a technique for multilayer radio transmission. More particularly, but without limitation, a method and apparatus for simultaneously transmitting data over radio frequencies using multiple layers with different robustness is provided. Background technique [0002] Multi-layer technology allows several messages to be sent simultaneously by sharing modulation symbols. Multi-layer technology is used in various wireless communication standards, including Long Term Evolution (LTE) and the digital TV standard ( For example, Digital Video Broadcasting for Terrestrial Transmission (DVB-T) and DVB for Satellite to Handheld Transmission (DVB-SH)). Each layer of a multilayer transport is characterized by a level of robustness. [0003] Multiplexer (MUX) and constellation mappers can be used to implement multi-layer transmission. A MUX combines several bitstreams corresponding to one or more pieces of coded data (eg, signaling o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/16H04L27/34H04W4/12H04W4/80H04W28/16H04W48/02H04W74/04
CPCH04L5/0055H04L1/16H04L27/34H04W4/12H04W4/80H04W28/16H04W48/02H04W74/04H04L27/3488H04W4/00H04L5/0044H04L5/0064H04W74/0808H04W4/70H04L1/1614H04W48/18H04W72/0453H04W72/1263H04W74/0816H04W72/569
Inventor G·R·希尔茨M·洛佩兹C·彼得松
Owner TELEFON AB LM ERICSSON (PUBL)