Method and user equipment for receiving downlink control information, and method and base station for transmitting downlink control information
AssigneeLG Electronics Inc.
InventorsHyangsun You, Yunjung Yi
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Abstract
A method for downlink control information (DCI) transmission/reception is provided. The method for DCI transmission comprises: receiving, by a user equipment, a narrowband physical downlink control channel (N-PDCCH) carrying the DCI. The N-PDCCH is received using at least one of two control channel element (CCEs) on the 1 resource block (RB) only. A first CCE of the two CCEs occupies 6 subcarriers of the lowest indices among the 12 subcarriers and a second CCE of the two CCEs occupies 6 subcarriers of the highest indices among the 12 subcarriers.
Claims16
A method for receiving a signal by a user equipment (UE) in narrowband internet of things (NB-IoT), the method comprising:
- receiving, by the UE, a narrowband physical downlink control channel (N-PDCCH) carrying downlink control information (DCI);
- and
- receiving, by the UE, a physical downlink shared channel (PDSCH) based on the DCI,
- wherein a channel bandwidth of the NB-IoT is limited to 200 kHz and comprising 1 resource block (RB) which comprises 12 subcarriers in a frequency domain,
- wherein the N-PDCCH is received based on at least one of two control channel elements (CCEs) on the 1 RB,
- wherein a first CCE of the two CCEs occupies 6 subcarriers with indices from 0 to 5 among the 12 subcarriers and a second CCE of the two CCEs occupies 6 subcarriers with indices from 6 to 11 among the 12 subcarriers, and
- wherein the N-PDCCH is received based on monitoring a N-PDCCH candidate configured with the two CCEs in case that the N-PDCCH is received with repetition.
A method for transmitting a signal by a base station (BS) in narrowband internet of things (NB-IoT), the method comprising:
- transmitting, to a user equipment (UE), a narrowband physical downlink control channel (N-PDCCH) carrying downlink control information (DCI);
- and
- transmitting, to the UE, a physical downlink shared channel (PDSCH) based on the DCI,
- wherein a channel bandwidth of the NB-IoT is limited to 200 kHz and comprising 1 resource block (RB) which comprises 12 subcarriers in a frequency domain,
- wherein the N-PDCCH is transmitted based on at least one of two control channel elements (CCEs) on the 1 RB,
- wherein a first CCE of the two CCEs occupies 6 subcarriers with indices from 0 to 5 among the 12 subcarriers and a second CCE of the two CCEs occupies 6 subcarriers with indices from 6 to 11 among the 12 subcarriers, and
- wherein the N-PDCCH is transmitted based on a N-PDCCH candidate configured with the two CCEs in case that the N-PDCCH is transmitted with repetition.
A user equipment (UE) for receiving a signal in narrowband internet of things (NB-IoT), the UE comprising:
- a memory;
- and
- at least one processor coupled with the memory and configured to:
- receive, by the UE, a narrowband physical downlink control channel (N-PDCCH) carrying downlink control information (DCI);
- and
- receive, by the UE, a physical downlink shared channel (PDSCH) based on the DCI,
- wherein a channel bandwidth of the NB-IoT is limited to 200 kHz and comprising 1 resource block (RB) which comprises 12 subcarriers in a frequency domain,
- wherein the N-PDCCH is received based on at least one of two control channel elements (CCEs) on the 1 RB,
- wherein a first CCE of the two CCEs occupies 6 subcarriers with indices from 0 to 5 among the 12 subcarriers and a second CCE of the two CCEs occupies 6 subcarriers with indices from 6 to 11 among the 12 subcarriers, and
- wherein the N-PDCCH is received based on monitoring a N-PDCCH candidate configured with the two CCEs in case that the N-PDCCH is received with repetition.
A base station (BS) for transmitting a signal in narrowband internet of things (NB-IoT), the BS comprising:
- a memory;
- and
- at least one processor coupled with the memory and configured to:
- transmit, to a user equipment (UE), a narrowband physical downlink control channel (N-PDCCH) carrying downlink control information (DCI);
- and
- transmit, to the UE, a physical downlink shared channel (PDSCH) based on the DCI,
- wherein a channel bandwidth of the NB-IoT is limited to 200 kHz and comprising 1 resource block (RB) which comprises 12 subcarriers in a frequency domain,
- wherein the N-PDCCH is transmitted based on at least one of two control channel elements (CCEs) on the 1 RB,
- wherein a first CCE of the two CCEs occupies 6 subcarriers with indices from 0 to 5 among the 12 subcarriers and a second CCE of the two CCEs occupies 6 subcarriers with indices from 6 to 11 among the 12 subcarriers, and
- wherein the N-PDCCH is transmitted based on a N-PDCCH candidate configured with the two CCEs in case that the N-PDCCH is transmitted with repetition.
Dependencies are inferred from the claim text.