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US 11,082,996 B2Granted
Data transmitting method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsYingyang Li, Shichang Zhang, Yi Wang
Life of this patent
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Abstract
The present disclosure provides a data transmitting method. The method includes that a device detects SA, generates a DMRS sequence and a scrambling code of a data channel for the SA correctly decoded; and performs processing for the data channel scheduled by the SA correctly decoded according to the DMRS sequence and the scrambling code. According to the method of the present disclosure, DMRS sequence randomization and scrambling code randomization of the data channel can be better supported, so as to optimize transmission performance.
Claims20
A method for transmitting data in a wireless communication system, the method comprising:
- identifying scheduling assignment information for transmitting the data;
- identifying cyclic redundancy check (CRC) information based on the scheduling assignment information;
- transmitting the scheduling assignment information and the CRC information on a physical sidelink control channel (PSCCH) to a terminal in a first subframe;
- and
- transmitting the data and a demodulation reference signal (DMRS) for the data on a physical sidelink shared channel (PSSCH) to the terminal in the first subframe,
- wherein the scheduling assignment information includes resource information for the data and modulation and coding scheme information for the data,
- wherein the CRC information being 16 bits is determined based on all information fields in the scheduling assignment information, and
- wherein the data, a parameter fSS for a root sequence of the DMRS, an orthogonal cover code (OCC) for the DMRS, and a cyclic shift (CS) for the DMRS are identified based on the CRC information, in case that the scheduling assignment information, the data and the DMRS are transmitted in the same subframe.
5 more elements
A first terminal for transmitting data in a wireless communication system, the first terminal comprising:
- a transceiver;
- and
- a controller coupled to the transceiver and configured to:
- identify scheduling assignment information for transmitting the data,
- identify cyclic redundancy check (CRC) information based on the scheduling assignment information,
- transmit the scheduling assignment information and the CRC information on a physical sidelink control channel (PSCCH) to a second terminal in a first subframe, and
- transmit the data and a demodulation reference signal (DMRS) for the data on a physical sidelink shared channel (PSSCH) to the second terminal in the first subframe,
- wherein the scheduling assignment information includes resource information for the data and modulation and coding scheme information for the data,
- wherein the CRC information being 16 bits is determined based on all information fields in the scheduling assignment information, and
- wherein the data, a parameter fSS for a root sequence of the DMRS, an orthogonal cover code (OCC) for the DMRS, and a cyclic shift (CS) for the DMRS are identified based on the CRC information, in case that the scheduling assignment information, the data and the DMRS are transmitted in the same subframe.
7 more elements
A method for receiving data in a wireless communication system, the method comprising:
- receiving scheduling assignment information and cyclic redundancy check (CRC) information on a physical sidelink control channel (PSCCH) from a terminal in a first subframe;
- identifying a demodulation reference signal (DMRS) sequence based on the CRC information;
- and
- receiving the data and a DMRS for the data on a physical sidelink shared channel (PSSCH) from the terminal according to the scheduling assignment information and the DMRS sequence in the first subframe,
- wherein the scheduling assignment information includes resource information for the data and modulation and coding scheme information for the data,
- wherein the CRC information being 16 bits depends on all information fields in the scheduling assignment information, and
- wherein a parameter fSS for a root sequence of the DMRS sequence, an orthogonal cover code (OCC) for the DMRS sequence, and a cyclic shift (CS) for the DMRS sequence are identified based on the CRC information, in case that the scheduling assignment information, the data and the DMRS are received in the same subframe.
4 more elements
A second terminal for receiving data in a wireless communication system, the second terminal comprising:
- a transceiver;
- and
- a controller coupled to the transceiver and configured to:
- receive scheduling assignment information and cyclic redundancy check (CRC) information on a physical sidelink control channel (PSCCH) from a first terminal in a first subframe,
- identifying a demodulation reference signal (DMRS) sequence based on the CRC information, and
- receive the data and a DMRS for the data on a physical sidelink shared channel (PSSCH) from the first terminal according to the scheduling assignment information and the DMRS sequence in the first subframe,
- wherein the scheduling assignment information includes resource information for the data and modulation and coding scheme information for the data,
- wherein the CRC information being 16 bits depends on all information fields in the scheduling assignment information, and
- wherein a parameter fSS for a root sequence of the DMRS sequence, an orthogonal cover code (OCC) for the DMRS sequence, and a cyclic shift (CS) for the DMRS sequence are identified based on the CRC information, in case that the scheduling assignment information, the data and the DMRS is received in the same subframe.
6 more elements
Dependencies are inferred from the claim text.