US 12,114,342 B2Granted

Scheduling weight calculation for MU MIMO

AssigneeTelefonaktiebolaget LM Ericsson (publ)

InventorsXixian Chen, Dongsheng Yu, Xiaoming Lai, Weigang Li

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Abstract

According to certain embodiments, a method for use in a network node for scheduling wireless transmissions comprises determining a channel quality weight for a first wireless channel based on its number of information bits and a channel quality weight for a second wireless channel based on its number of information bits. The number of information bits is based on a signal to interference plus noise (SINR) measurement and a modulation coding scheme of the wireless channels. The method further comprises determining a scheduling weight for the first wireless device based on the channel quality weight for the first wireless channel, determining a scheduling weight for the second wireless device based on the channel quality weight for the second wireless channel, and scheduling a transmission to one of the first and second wireless devices based on the scheduling weights of the first and second wireless devices.

Claims14

Dependent claims

A method for use in a network node for scheduling wireless transmissions, the method comprising:

determining a first channel quality weight for a first wireless channel between the network node and a first wireless device based on a first number of information bits per resource element that is configured to be carried by the first wireless channel, wherein the first number of information bits per resource element that is configured to be carried by the first wireless channel is based on a signal to interference plus noise (SINR) measurement of the first wireless channel and a modulation coding scheme used for the first wireless channel;
determining a first scheduling weight for the first wireless device based at least on the first channel quality weight for the first wireless channel;
determining a second channel quality weight for a second wireless channel between the network node and a second wireless device based on a second number of information bits per resource element that is configured to be carried by the second wireless channel, wherein the second number of information bits per resource element that is configured to be carried by the second wireless channel is based on a SINR measurement of the second wireless channel and a modulation coding scheme used for the second wireless channel;
determining a second scheduling weight for the second wireless device based at least on the second channel quality weight for the second wireless channel;
determining a condition that insufficient network resources exist to transmit the first number of information bits per resource element using the first wireless channel;
in response to determining the condition that insufficient network resources exist to transmit the first number of information bits per resource element using the first wireless channel, determining an updated second channel quality weight based at least on the second number of information bits per resource element;
determining an updated second scheduling weight based at least on the updated second channel quality weight;
and
scheduling a transmission to at least one of the first and second wireless devices based on the first scheduling weight of the first wireless device and the updated second scheduling weight of the second wireless device.

6 more elements

A network node operable to schedule wireless transmissions, the network node comprising processing circuitry operable to:

determine a first channel quality weight for a first wireless channel between the network node and a first wireless device based on a first number of information bits per resource element that is configured to be carried by the first wireless channel, wherein the first number of information bits per resource element that is configured to be carried by the first wireless channel is based on a signal to interference plus noise (SINR) measurement of the first wireless channel and a modulation coding scheme used for the first wireless channel;
determine a first scheduling weight for the first wireless device based at least on the first channel quality weight for the first wireless channel;
determine a second channel quality weight for a second wireless channel between the network node and a second wireless device based on a second number of information bits per resource element that is configured to be carried by the second wireless channel, wherein the second number of information bits per resource element that is configured to be carried by the second wireless channel is based on a SINR measurement of the second wireless channel and a modulation coding scheme used for the second wireless channel;
determine a second scheduling weight for the second wireless device based at least on the second channel quality weight for the second wireless channel;
determine a condition that insufficient network resources exist to transmit the first number of information bits per resource element using the first wireless channel;
in response to determining the condition that insufficient network resources exist to transmit the first number of information bits per resource element using the first wireless channel, determine an updated second channel quality weight based at least on the second number of information bits per resource element;
determine an updated second scheduling weight based at least on the updated second channel quality weight;
and
schedule a transmission to at least one of the first and second wireless devices based on the first scheduling weight of the first wireless device and the updated second scheduling weight of the second wireless device.

6 more elements

Dependencies are inferred from the claim text.