Method, apparatus, and system for transmitting or receiving control channel and data channel in wireless communication system
AssigneeWilus Institute of Standards and Technology Inc.
InventorsKyungjun Choi, Minseok Noh, Jinsam Kwak
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Abstract
A base station of a wireless communication system is disclosed. The base station of the wireless communication includes a communication module, and a processor. The processor generates a preemption indicator indicating a preempted resource. In this case, the resource indicated by the preemption indicator does not include an orthogonal frequency divisional multiplexing (OFDM) symbol configured as an uplink (UL) symbol by a radio resource control (RRC) signal. The processor is configured to transmit the preemption indicator to a user equipment of the wireless system based on a predetermined period.
Claims14
A base station of a wireless communication system using a time division duplex (TDD), scheme, the base station comprising:
- a communication module;
- and
- a processor configured to control the communication module,
- wherein the processor is configured to:
- generate a preemption indicator indicating a preempted resource within a predetermined period which includes a first plurality of orthogonal frequency division multiplexing (OFDM) symbols which comprise uplink (UL) symbols for uplink transmission, downlink (DL) symbols for downlink transmission, and flexible symbols configured as neither a UL symbol nor a DL symbol, wherein the UL symbols, the DL symbols, and the flexible symbols are configured by the base station,
- transmit the preemption indicator to a user equipment of the wireless communication system based on the predetermined period,
- wherein the preemption indicator indicates a preempted resource among a second plurality of OFDM symbols which are OFDM symbols included in the first plurality of OFDM symbols except for a UL symbol configured by a cell-specific radio resource control (RRC), signal.
A user equipment of a wireless communication system using a time division duplex (TDD) scheme, the user equipment comprising:
- a communication module;
- and
- a processor configured to control the communication module,
- wherein the processor is configured to:
- periodically monitor a preemption indicator within a predetermined period which includes a first plurality of orthogonal frequency division multiplexing (OFDM) symbols which comprise (UL) symbols for uplink transmission, downlink (DL) symbols for downlink transmission, and flexible symbols configured as neither a UL symbol nor a DL symbol, wherein the UL symbols, the DL symbols, and the flexible symbols are configured by a base station of the wireless communication system,
- when receiving the preemption indicator, determine a second plurality of OFDM symbols among which the preemption indicator indicates a preempted resource, wherein the second plurality of OFDM symbols are OFDM symbols included in the first plurality of OFDM symbols except for a UL symbol configured by a cell-specific radio resource control (RRC signal),
- when receiving the preemption indicator, determine a resource in which transmission from the base station to the user equipment occurs among resources scheduled to the user equipment based on the preemption indicator, and
- decode received data from the base station based on the determined resource.
A method of operating a user equipment of a wireless system using a time division duplex (TDD), scheme, the method comprising:
- periodically monitoring a preemption indicator within a predetermined period which includes a first plurality of orthogonal frequency division multiplexing (OFDM) symbols which comprise uplink (UL) symbols for uplink transmission, downlink (DL) symbols for downlink transmission, and flexible symbols configured as neither a UL symbol nor a DL symbol, wherein the UL symbols, the DL symbols, and the flexible symbols are configured by a base station of the wireless communication system,
- when receiving the preemption indicator, determining a second plurality of OFDM symbols among which the preemption indicator indicates a preempted resource, wherein the second plurality of OFDM symbols are OFDM symbols included in the first plurality of OFDM symbols except for a UL symbol configured by a cell-specific radio resource control (RRC) signal,
- when receiving the preemption indicator, determining a resource in which transmission from the base station to the user equipment occurs among resources scheduled to the user equipment based on the preemption indicator, and
- decoding data received from the base station based on the determined resource.
Dependencies are inferred from the claim text.