Configuration of downlink transmissions
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsHenrik Sahlin, Jingya Li, Gustav Wikström, Niklas Andgart, Laetitia Falconetti, Daniel Larsson
Life of this patent
Estimating the term…
Abstract
There is presented a method for providing configuration for downlink transmission to a wireless device. The method is performed by a network node and comprises transmitting a Downlink Control Information (DCI) message comprising configuration for downlink transmission in a short Transmission Time Interval (sTTI). Network nodes, wireless terminals, computer programs, and computer program products thereof are also presented.
Claims46
A method for providing configuration for downlink transmission to a wireless device, the method being performed by a network node, the method comprising:
- transmitting a Downlink Control Information, DCI, message comprising configuration for downlink transmission in a short Transmission Time Interval, sTTI, which is shorter than a legacy Transmission Time Interval, TTI, wherein:
- the sTTI data transmissions following a starting symbol index of 1 or 3 have a first pattern consisting of symbol lengths 3, 2, 2, 2, 2 and 3 in consecutive order, and
- the sTTI data transmissions following a starting symbol index of 2 have a second pattern consisting of symbol lengths 2, 3, 2, 2, 2 and 3 in consecutive order.
A method for configuration of downlink transmission from a network node, the method being performed by a wireless device, the method comprising:
- receiving a Downlink Control Information, DCI, message comprising configuration for downlink transmission in a short Transmission Time Interval, sTTI, which is shorter than a legacy Transmission Time Interval, TTI;
- and
- determining an sTTI pattern to be used based on a starting symbol index within a subframe for the downlink transmission, wherein:
- the sTTI data transmissions following a starting symbol index of 1 or 3 have a first pattern consisting of symbol lengths 3, 2, 2, 2, 2 and 3 in consecutive order, and
- the sTTI data transmissions following a starting symbol index of 2 have a second pattern consisting of symbol lengths 2, 3, 2, 2, 2 and 3 in consecutive order.
A network node for providing configuration for downlink transmission to a wireless device, the network node comprising:
- a processor;
- and
- a computer program product storing instructions that, when executed by the processor, causes the network node to:
- transmit a Downlink Control Information, DCI, message comprising configuration for downlink transmission in a short Transmission Time Interval, sTTI, which is shorter than a legacy Transmission Time Interval, TTI, wherein:
- the sTTI data transmissions following a starting symbol index of 1 or 3 have a first pattern consisting of symbol lengths 3, 2, 2, 2, 2 and 3 in consecutive order, and
- the sTTI data transmissions following a starting symbol index of 2 have a second pattern consisting of symbol lengths 2, 3, 2, 2, 2 and 3 in consecutive order.
A wireless device for configuration of downlink transmission from a network node, the wireless device comprising:
- a processor;
- and
- a computer program product storing instructions that, when executed by the processor, causes the wireless device to:
- receive a Downlink Control Information, DCI, message comprising configuration for downlink transmission in a short Transmission Time Interval, sTTI, which is shorter than a legacy Transmission Time Interval, TTI;
- and
- determine an sTTI pattern to be used based on a starting symbol index within a subframe for the downlink transmission, wherein:
- the sTTI data transmissions following a starting symbol index of 1 or 3 have a first pattern consisting of symbol lengths 3, 2, 2, 2, 2 and 3 in consecutive order, and
- the sTTI data transmissions following a starting symbol index of 2 have a second pattern consisting of symbol lengths 2, 3, 2, 2, 2 and 3 in consecutive order.
A non-transitory computer readable storage medium having stored thereon executable instructions that, when run on a network node, causes the network node to:
- transmit a Downlink Control Information, DCI, message comprising configuration for downlink transmission in a short Transmission Time Interval, sTTI, which is shorter than a legacy Transmission Time Interval, TTI, wherein:
- the sTTI data transmissions following a starting symbol index of 1 or 3 have a first pattern consisting of symbol lengths 3, 2, 2, 2, 2 and 3 in consecutive order, and
- the sTTI data transmissions following a starting symbol index of 2 have a second pattern consisting of symbol lengths 2, 3, 2, 2, 2 and 3 in consecutive order.
A non-transitory computer readable storage medium having stored thereon executable instructions that, when run on a wireless terminal, causes the wireless terminal to:
- receive a Downlink Control Information, DCI, message comprising configuration for downlink transmission in a short Transmission Time Interval, sTTI, which is shorter than a legacy Transmission Time Interval, TTI;
- and
- determine an sTTI pattern to be used based on a starting symbol index within a subframe for the downlink transmission, wherein:
- the sTTI data transmissions following a starting symbol index of 1 or 3 have a first pattern consisting of symbol lengths 3, 2, 2, 2, 2 and 3 in consecutive order, and
- the sTTI data transmissions following a starting symbol index of 2 have a second pattern consisting of symbol lengths 2, 3, 2, 2, 2 and 3 in consecutive order.
Dependencies are inferred from the claim text.