Method and apparatus for transmitting and receiving signal in communication system
AssigneeElectronics and Telecommunications Research Institute
InventorsYoung Jo Ko, Gi Yoon Park, Ok Sun Park, Seung Kwon Baek, Woo Ram Shin, Chan Ho Yoon
Life of this patent
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Abstract
A method and apparatus for transmitting and receiving signal in communication system. A method of a base station includes: configuring frequency spreading sequences each of which corresponds to a transmission starting time point; configuring time spreading sequences each of which corresponds to a terminal; and transmitting information on the frequency spreading sequences and the time spreading sequences to a plurality of terminals, wherein one of the frequency spreading sequences and one of the time spreading sequences are assigned to each of the plurality of terminals.
Claims18
An operation method of a base station in a communication system, the operation method comprising:
- configuring a first frequency spreading sequence for a first transmission starting time point;
- configuring a second frequency spreading sequence for a second transmission starting time point, the second transmission starting time point being different from the first transmission starting time point, and the second frequency spreading sequence being configured to be different from the first frequency spreading sequence;
- configuring time spreading sequences each of which corresponds to a terminal;
- and
- transmitting information on the first frequency spreading sequence, the second frequency spreading sequence, and the time spreading sequences to a plurality of terminals,
- wherein the first frequency spreading sequence is used by a first terminal among the plurality of terminals when a transmission starting time point of the first terminal is the first transmission starting time point, the second frequency spreading sequence is used by the first terminal when the transmission starting time point of the first terminal is the second transmission starting time point, and both the first frequency spreading sequence and the second frequency spreading sequence are applied to same transport block (TB) of the first terminal,
- wherein each of the first and second transmission starting points is an arbitrary symbol in a subframe, and
- wherein the information on the first frequency spreading sequence, the second frequency spreading sequence, and the time spreading sequences is transmitted through system information, a radio resource control (RRC) signaling, or a downlink control information (DCI).
An operation method of a first terminal in a communication system, the operation method comprising:
- receiving, from a base station, information on a first frequency spreading sequence for a first transmission starting time point, a second frequency spreading sequence for a second transmission starting time point, and a first time spreading sequence, the second transmission starting time point being different from the first transmission starting time point, and the second frequency spreading sequence being configured to be different from the first frequency spreading sequence;
- selecting the first frequency spreading sequence among the first and second frequency spreading sequences when a transmission starting time point of the first terminal is the first transmission starting time point, and selecting the second frequency spreading sequence when the transmission starting time point of the first terminal is the second transmission starting point;
- generating a signal by performing spreading on a transport block (TB) based on the first time spreading sequence and the selected first frequency spreading sequence;
- and
- transmitting the signal to the base station,
- wherein each of the first and second transmission starting points is an arbitrary symbol in a subframe, and
- wherein the information on the first frequency spreading sequence, the second frequency spreading sequence, and the time spreading sequences is transmitted through system information, a radio resource control (RRC) signaling, or a downlink control information (DCI).
A first terminal transmitting a signal in a communication system, the first terminal comprising a processor and a memory storing at least one instruction executed by the processor, wherein the at least one instruction is configured to:
- receive, from a base station, information on a first frequency spreading sequence for a first transmission starting time point, a second frequency spreading sequence for a second transmission starting time point, and a first time spreading sequence, the second transmission starting time point being different from the first transmission starting time point, and the second frequency spreading sequence being configured to be different from the first frequency spreading sequence;
- select the first frequency spreading sequence among the first and second frequency spreading sequences when a transmission starting time point of the first terminal is the first transmission starting time point, and select the second frequency spreading sequence when the transmission starting time point of the first terminal is the second transmission starting point;
- generate a signal by performing spreading on a transport block (TB) based on the first time spreading sequence and the selected first frequency spreading sequence;
- and
- transmit the signal to the base station,
- wherein each of the first and second transmission starting points is an arbitrary symbol in a subframe, and
- wherein the information on the first frequency spreading sequence, the second frequency spreading sequence, and the time spreading sequences is transmitted through system information, a radio resource control (RRC) signaling, or a downlink control information (DCI).
Dependencies are inferred from the claim text.