Enabling multiple numerologies in a network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRobert Baldemair, Sorour Falahati, Daniel Larsson, Stefan Parkvall
Life of this patent
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Abstract
There is presented a method for enabling multiple numerologies in a network. The method is performed by a user equipment (UE) and comprises receiving system information in a first search space on a broadcast channel with a first numerology, determining a second search space from the received system information, and receiving further information in the second search space with a second numerology. A UE, a base station, a computer program, and a computer program device are also presented.
Claims9
A method for enabling multiple numerologies corresponding to different subcarrier spacings in a wireless network, the method being performed by a user equipment (UE) and comprising:
- determining, based on a carrier frequency used by a base station of the wireless network, a first numerology to use for receiving a broadcast channel transmitted by the base station;
- receiving the broadcast channel according to the first numerology, wherein a time-domain placement of the broadcast channel is determined by the first numerology;
- determining, from system information provided on the broadcast channel, a common search space and a second numerology used by the base station for transmitting control information in the common search space, the second numerology different than the first numerology;
- receiving, according to the second numerology, a Physical Downlink Control Channel (PDCCH) in the common search space;
- and
- determining, from further system information provided on the PDCCH, an additional search space for receiving a further PDCCH.
A method for enabling multiple numerologies corresponding to different subcarrier spacings in a wireless network, the method being performed by a base station (BS) and comprising:
- transmitting a broadcast channel via a carrier having a carrier frequency, the broadcast channel transmitted using a first numerology that is associated with the carrier frequency and providing system information indicating a common search space and a second numerology that is different than the first numerology, wherein a time-domain placement of the broadcast channel is determined by the first numerology;
- and
- transmitting a Physical Downlink Control Channel (PDCCH) for a user equipment (UE), the PDCCH transmitted in the common search space using the second numerology and providing further system information indicating to the UE an additional search space for transmitting a further PDCCH for the UE.
A user equipment (UE) supporting multiple numerologies corresponding to different subcarrier spacings in a wireless network, the UE comprising:
- a processor;
- and
- a memory storing computer program instructions that, when executed by the processor, cause the UE to:
- determine, based on a carrier frequency used by a base station of the wireless network, a first numerology to use for receiving a broadcast channel transmitted by the base station;
- receive broadcast channel according to the first numerology, wherein a time-domain placement of the broadcast channel is determined by the first numerology;
- determine, from system information provided on the broadcast channel, a common search space and a second numerology used by the base station for transmitting control information in the common search space, the second numerology different than the first numerology;
- receive, according to the second numerology, a Physical Downlink Control Channel (PDCCH) in the common search space;
- and
- determine, from further system information providing on the PDCCH, an additional search space for receiving a further PDCCH.
A base station (BS) supporting multiple numerologies corresponding to different subcarrier spacings in a wireless network, the BS comprising:
- a processor;
- and
- a memory storing computer program instructions that, when executed by the processor, cause the BS to:
- transmit a broadcast channel via a carrier having a carrier frequency, the broadcast channel transmitted using a first numerology that is associated with the carrier frequency and providing system information indicating a common search space and a second numerology that is different than the first numerology, and wherein a time-domain placement of the broadcast channel is determined by the first numerology;
- and
- transmit a Physical Downlink Control Channel (PDCCH) for a user equipment (UE), the PDCCH transmitted in the common search space using the second numerology and providing further system information indicating to the UE an additional search for transmitting a further PDCCH for the UE.
Dependencies are inferred from the claim text.