Coexistence of reference signals in wireless commnication networks
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMattias FRENNE, Lars LINDBOM
Life of this patent
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Abstract
Radio network node, wireless device, and related methods are described. According to one aspect, when a first radio access technology and a second radio access technology are coexisting on the same carrier, the symbol location of the reference signals of the first radio access technology may be moved or changed when the reference signals of the first radio access technology collide with the reference signals of the second radio access technology.
Claims18
A method in a radio network node for reference signal collision avoidance between a first radio access technology and a second radio access technology coexisting on a same carrier and using a same subcarrier spacing, the radio network node operating according to a first radio access technology, the method comprising:
- transmitting a downlink transmission to a wireless device operating according to the first radio access technology, the downlink transmission including reference signals of the first radio access technology;
- the reference signals of the first radio access technology being located at a first symbol location within the downlink transmission when a predetermined LTE-related parameter is not configured to the wireless device;
- and
- the reference signals of the first radio access technology being located at a second symbol location within the downlink transmission when the predetermined LTE-related parameter is configured to the wireless device, the second symbol location being either before the first symbol location or after the first symbol location.
A radio network node configured to operate according to a first radio access technology and a second radio access technology, the first and second radio access technologies using a same subcarrier spacing, the radio network node configured to:
- transmit a downlink transmission to a wireless device operating according to the first radio access technology, the downlink transmission including reference signals of the first radio access technology;
- the reference signals of the first radio access technology being located at a first symbol location within the downlink transmission when a predetermined LTE-related parameter is not configured to the wireless device;
- and
- the reference signals of the first radio access technology being located at a second symbol location within the downlink transmission when the predetermined LTE-related parameter is configured to the wireless device, the second symbol location being either before the first symbol location or after the first symbol location.
A method in a wireless device for reference signal collision avoidance between a first radio access technology and a second radio access technology coexisting on a same carrier and using a same subcarrier spacing, the wireless device operating according to the first radio access technology, the method comprising:
- receiving a downlink transmission from a radio network node operating according to the first radio access technology, the downlink transmission including reference signals of the first radio access technology;
- the reference signals of the first radio access technology being located at a first symbol location within the downlink transmission when a predetermined LTE-related parameter is not configured to the wireless device;
- and
- the reference signals of the first radio access technology being located at a second symbol location within the downlink transmission when the predetermined LTE-related parameter is configured to the wireless device, the second symbol location being either before the first symbol location or after the first symbol location.
Dependencies are inferred from the claim text.