Method and equipment for channel sensing and signal transmission
AssigneeSamsung Electronics Co., Ltd.
InventorsYi Wang, Shichang Zhang, Yingyang Li
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Abstract
A method for channel sensing and signal transmission is provided. The method includes that a signal transmission mode of a communication node in a predefined time window is different from a signal transmission mode of the communication node outside the predefined time window, which includes at least one of a channel sensing mode and a data transmission mode. By performing the method, a frequency domain multiplexing coefficient among nodes adopting the same access technology can be improved, and the coexistence of the access technology and others can be ensured.
Claims10
A method for channel sensing and signal transmission on a cell in an unlicensed frequency band channel, the method comprising:
- identifying, by a sending node, whether the unlicensed frequency band channel is idle for a first channel sensing interval;
- and
- in case that the unlicensed frequency band channel is idle for the first channel sensing interval, transmitting, by a sending node, a discovery signal not including physical downlink shared channel (PDSCH) on a first period in a subframe within a predetermined timing window when a duration of the first period for the transmitting of the discovery signal is less than 1 ms,
- wherein a duration of the subframe corresponds to a duration of 14 orthogonal frequency division multiplexing (OFDM) symbols,
- wherein the duration of the first period corresponds to 12 OFDM symbols of the 14 OFDM symbols within the subframe, and
- wherein a duration of the first channel sensing interval associated with the transmitting of the discovery signal without the PDSCH is equal to or shorter than a duration of a second channel sensing interval associated with a transmitting of the PDSCH.
An equipment for channel sensing and signal transmission on a cell in an unlicensed frequency band channel, the equipment comprising:
- a channel sensing unit;
- and
- a signal sending unit,
- wherein the channel sensing unit is configured to:
- identify whether the unlicensed frequency band channel is idle for a first channel sensing interval,
- wherein the signal sending unit is configured to:
- in case that the unlicensed frequency band channel is idle for the first channel sensing interval, transmit a discovery signal not including physical downlink shared channel (PDSCH) on a first period in a subframe within a predetermined timing window when a duration of the first period for the transmitting of the discovery signal is less than 1 ms,
- wherein a duration of the subframe corresponds to a duration of 14 orthogonal frequency division multiplexing (OFDM) symbols,
- wherein the duration of the first period corresponds to 12 OFDM symbols of the 14 OFDM symbols within the subframe, and
- wherein a duration of the first channel sensing interval associated with the transmitting of the discovery signal without the PDSCH is equal to or shorter than a duration of a second channel sensing interval associated with a transmitting of the PDSCH.
Dependencies are inferred from the claim text.