US 11,888,785 B2
Method, apparatus, and system for transmitting or receiving control channel and data channel in wireless communication system
Kyungjun Choi, Gyeonggi-do (KR); Minseok Noh, Seoul (KR); and Jinsam Kwak, Gyeonggi-do (KR)
Assigned to WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-Do (KR)
Filed by WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-do (KR)
Filed on Mar. 11, 2022, as Appl. No. 17/693,231.
Application 17/693,231 is a continuation of application No. 16/714,596, filed on Dec. 13, 2019, granted, now 11,381,369.
Application 16/714,596 is a continuation of application No. PCT/KR2018/006870, filed on Jun. 18, 2018.
Claims priority of application No. 10-2017-0076934 (KR), filed on Jun. 16, 2017; application No. 10-2017-0127516 (KR), filed on Sep. 29, 2017; application No. 10-2017-0129707 (KR), filed on Oct. 11, 2017; application No. 10-2017-0149933 (KR), filed on Nov. 10, 2017; application No. 10-2018-0018903 (KR), filed on Feb. 17, 2018; and application No. 10-2018-0040134 (KR), filed on Apr. 6, 2018.
Prior Publication US 2022/0200771 A1, Jun. 23, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04W 24/08 (2009.01); H04W 76/27 (2018.01)
CPC H04L 5/0092 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0094 (2013.01); H04W 24/08 (2013.01); H04W 76/27 (2018.02)] 10 Claims
OG exemplary drawing
 
1. 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, wherein the predetermined period includes a first plurality of orthogonal frequency division multiplexing (OFDM) symbols which comprise one or more uplink (UL) symbols, one or more downlink (DL) symbols, and one or more flexible symbols configured as neither a UL symbol nor a DL symbol, wherein the one or more DL symbols, the one or more UL symbols and the one or more flexible symbols are configured by a cell specific radio resource control (RRC) signal, wherein at least one of the one or more flexible symbols is additionally configured as a UL symbol by a user equipment specific RRC signal, and
transmit the preemption indicator to a user equipment of the wireless communication system based on the predetermined period,
wherein the preemption indicator indicates the preempted resource among a second plurality of OFDM symbols which are OFDM symbols included in the first plurality of OFDM symbols except for the one or more UL symbols configured by the cell specific RRC signal, wherein the second plurality of OFDM symbols includes the UL symbol configured by the user equipment specific RRC signal,
wherein the second plurality of OFDM symbols are divided into a plurality of groups, the preemption indicator includes a bitmap, and each of bits in the bitmap corresponds to each of the plurality of groups and indicates whether at least one OFDM symbol in a group corresponding to the each of bits in the bitmap is preempted,
wherein a number of the plurality of groups is predetermined,
wherein a number of the plurality of groups is N,
wherein a number of the second plurality of OFDM symbols is S,
wherein the processor is configured to group a first mod(S, N) groups among N groups such that each of the first mod(S, N) groups includes ceil(S/N) OFDM symbols and groups remaining N−mod(S, N) groups such that each of the N−mod(S, N) groups includes floor(S/N) OFDM symbols,
wherein the mod(x, y) represents x−floor(x/y)*y,
wherein the floor(x) represents a largest integer less than or equal to x,
wherein the ceil(x) represents a smallest integer number greater than or equal to x.