Methods and apparatuses for signalling a frequency offset in a NB-IoT TDD network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsYi-Pin Eric Wang, Gerardo Agni Medina Acosta, Johan Bergman, Olof Liberg, Kazuyoshi Uesaka, Yutao Sui, Talha Khan
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Abstract
Methods and apparatuses are disclosed for communicating to a wireless device (WD) a DL-to-UL frequency offset (or frequency shift) that may need to be applied. For example, a method implemented in a wireless device (WD) is provided. The method comprises: receiving, from the network node, an indication of a frequency offset; and applying the received frequency offset; wherein the WD is configured to operate on a narrow-band Internet of Things (NB-IoT) carrier in a New Radio (NR) carrier.
Claims18
A network node configured to communicate with a wireless device (WD) operating in Time Division Duplex (TDD), the network node comprising a radio interface and processing circuitry, which has a memory and a processor connected thereto, the processor configured to:
- configure a narrow band-Internet of things (NB-IoT) carrier in a new radio (NR) carrier;
- transmit a first indication of a downlink (DL) to uplink (UL) frequency offset to be applied by the wireless device, the DL to UL frequency offset indicating a difference between a first Physical Resource Block (PRB) center and a second PRB center, the first PRB being used for a UL transmission and the second PRB being used for a DL transmission, wherein the indication comprises a value selected from {−7.5 kHz, 0 kHz and 7.5 kHz}.
A method implemented in a wireless device (WD) operating in Time Division Duplex (TDD), the method comprising:
- receiving, from the network node, a first indication of a downlink (DL) to uplink (UL) frequency offset, the first indication comprising a value selected from {−7.5 kHz, 0 kHz and 7.5 kHz}, the DL to UL frequency offset indicating a difference between a first Physical Resource Block (PRB) center and a second PRB center, the first PRB being used for a UL transmission and the second PRB being used for a DL transmission;
- and
- applying the received DL to UL frequency offset;
- wherein the WD is configured to operate on a narrow-band Internet of Things (NB-IoT) carrier in a New Radio (NR) carrier.
A wireless device (WD), operating in Time Division Duplex (TDD), comprising a radio interface and processing circuitry, which has a memory and a processor connected thereto, the processor configured to:
- receive, from the network node, a first indication of a downlink (DL) to Uplink (UL) frequency offset, the first indication comprising a value selected from {−7.5 kHz, 0 kHz and 7.5 kHz}, the DL to UL frequency offset indicating a difference between a first Physical Resource Block (PRB) center and a second PRB center, the first PRB being used for a UL transmission and the second PRB being used for a DL transmission;
- and
- apply the received DL to UL frequency offset;
- wherein the WD is configured to operate on a narrow-band Internet of Things (NB-IoT) carrier in a New Radio (NR) carrier.
Dependencies are inferred from the claim text.