Improved control message reception at a receiver

Abstract

A receiver receives a radio signal from a transmitter of a wireless communication system serving a plurality of receivers. The radio signal includes for the plurality of receivers served by the transmitter a plurality of control messages and a redundant control message for at least one of the control messages. The receiver detects a control message from the radio signal, and, responsive to detecting the control message, the receiver detects a signal from another location in the radio signal. The receiver determines the detected control message as a specific control message for the receiver based on the signal detected from the other location.

Description

technical field [0001] This application relates to the field of wireless communication networks or systems, and more particularly to systems providing ultra-reliable communications. Embodiments relate to a method allowing a receiver or user equipment UE to assess whether a control message received from a sender, such as a base station or similarly another UE, is actually a control message intended for this particular UE. Background technique [0002] figure 1 is a schematic representation of an example of a terrestrial wireless network 100 comprising a core network 102 and a radio access network 104 . The radio access network 104 may comprise a plurality of base stations gNB1 to gNB5, each served by a corresponding cell 106 1 to 106 5 Schematic representation of a specific area around a base station. A base station is provided to serve users within the cell. The term base station BS refers to gNB in ​​5G networks, eNB in ​​UMTS / LTE / LTE-A / LTE-A Pro, or just BS in other m...

AI Technical Summary

Problems solved by technology

However, ultra-reliable communication services may require a packet error probability as low as 10 -5 , so that with approximately 10 -4 False-positive DCI is detected with a probability of , which causes a problem because the UE configures itself for data on resources that have not received data for the UE based on a false-positive DCI that may be a control message intended for another UE transmission, so that data transmission towards the UE may not be successful

This may cause additional delay until the UE decodes correct or true positive DCI e.g. in a subsequent downlink frame, allowing the UE to set its parameters to receive data from the base station on the correct resource

Obviously, while this delay might not be a problem in regular or standard communication services, in services that require ultra-reliable communication, this decoding / detection of false positive control messages can add latency

In addition, such error handling requires processing resources, thus consuming battery power of the UE

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