Transmitter for transmitting discovery signals, a receiver and methods therein
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRobert Baldemair, Kumar Balachandran, Dennis Hui
Life of this patent
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Abstract
A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver are comprised in a radio communications system. The transmitter transmits two or more discovery signals over two or more directions. Each discovery signal is configured to span over a fraction of a carrier bandwidth.
Claims15
A method, for operating a user equipment in a 3rd Generation Partnership Project (3GPP) radio communication system, the method comprising:
- receiving, over a carrier with a carrier bandwidth separated into one or more sub-bands:
- a first discovery signal spanning a fraction of the carrier bandwidth over a first beam, wherein the first discovery signal is received together with information indicating a beam direction of the first beam;
- and
- a second discovery signal spanning a fraction of the carrier bandwidth over a second beam, wherein the second discovery signal is received together with information indicating a beam direction of the second beam;
- and
- wherein the first and second discovery signals are transmitted over a same sub-band and where a bandwidth of the one or more sub-bands is less than the carrier bandwidth.
A user equipment (UE) configured to operate in a 3rd Generation Partnership Project (3GPP) radio communication system, the UE comprising:
- a receiver configured to receive, over a carrier with a carrier bandwidth separated into one or more sub-bands:
- a first discovery signal spanning a fraction of the carrier bandwidth over a first beam, wherein the first discovery signal is received together with information indicating a beam direction of the first beam;
- and
- a second discovery signal spanning a fraction of the carrier bandwidth over a second beam, wherein the second discovery signal is received together with information indicating a beam direction of the second beam;
- and
- wherein the first and second discovery signals are transmitted over a same sub-band and where a bandwidth of the one or more sub-bands is less than the carrier bandwidth.
A non-transitory computer-readable medium comprising instructions thereon that, when executed by processing circuitry in a user equipment (UE) configured to operate in a 3rd Generation Partnership Project (3GPP) radio communication system, causes the UE to:
- receive, over a carrier with a carrier bandwidth separated into one or more sub-bands:
- a first discovery signal spanning a fraction of the carrier bandwidth over a first beam, wherein the first discovery signal is received together with information indicating a beam direction of the first beam;
- and
- a second discovery signal spanning a fraction of the carrier bandwidth over a second beam, wherein the second discovery signal is received together with information indicating a beam direction of the second beam;
- and
- wherein the first and second discovery signals are transmitted over a same sub-band and where a bandwidth of the one or more sub-bands is less than the carrier bandwidth.
A method, implemented in a base station, for operating a user equipment (UE) in a 3rd Generation Partnership Project (3GPP) radio communication system, the method comprising:
- transmitting, over a carrier with a carrier bandwidth separated into one or more sub-bands:
- a first discovery signal spanning a fraction of the carrier bandwidth over a first beam, wherein the first discovery signal is transmitted together with information indicating a beam direction of the first beam;
- and
- a second discovery signal spanning a fraction of the carrier bandwidth over a second beam, wherein the second discovery signal is transmitted together with information indicating a beam direction of the second beam;
- and
- wherein the first and second discovery signals are transmitted over a same sub-band and where a bandwidth of the one or more sub-bands is less than the carrier bandwidth.
A base station configured to transmit discovery signals to a user equipment (UE) operating in a 3rd Generation Partnership Project (3GPP) radio communication system, the base station comprising:
- a transmitter configured to:
- transmit, over a carrier with a carrier bandwidth separated into one or more sub-bands:
- a first discovery signal spanning a fraction of the carrier bandwidth over a first beam, wherein the first discovery signal is transmitted together with information indicating a beam direction of the first beam;
- and
- a second discovery signal spanning a fraction of the carrier bandwidth over a second beam, wherein the second discovery signal is transmitted together with information indicating a beam direction of the second beam;
- and
- wherein the first and second discovery signals are transmitted over a same sub-band and where a bandwidth of the one or more sub-bands is less than the carrier bandwidth.
A non-transitory computer-readable medium comprising instructions thereon that, when executed by processing circuitry in a base station configured to transmit discovery signals to a user equipment (UE) operating in a 3rd Generation Partnership Project (3GPP) radio communication system, causes the base station to:
- transmit, over a carrier with a carrier bandwidth separated into one or more sub-bands:
- a first discovery signal spanning a fraction of the carrier bandwidth over a first beam, wherein the first discovery signal is transmitted together with information indicating a beam direction of the first beam;
- and
- a second discovery signal spanning a fraction of the carrier bandwidth over a second beam, wherein the second discovery signal is transmitted together with information indicating a beam direction of the second beam;
- and
- wherein the first and second discovery signals are transmitted over a same sub-band and where a bandwidth of the one or more sub-bands is less than the carrier bandwidth.
Dependencies are inferred from the claim text.