# US 11,310,823 B2 · Method and apparatus for transceiving channel related to terminal that supports half duplex transmission in mobile communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,823 B2 - Document ID: US11310823B2 - Status: Granted - Kind: B2 - Application number: 16/708,192 - Filed: 2019-12-09 - Published: 2020-04-09 - Granted: 2022-04-19 - Earliest claimed: 2012-02-29 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Hyoung Ju Ji; Young Bum Kim; Joon Young Cho; Seung-Hoon Choi - Web page: https://patentgrep.com/patent/US11310823B2 ## CPC - H04L 27/2602: {Signal structure} - H04B 7/2643: {using time-division multiple access [TDMA] (H04B7/2615, H04B7/2618 take precedence)} - H04B 7/2656: {for structure of frame, burst} - H04J 3/00: Time-division multiplex systems (H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q) - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method and apparatus of a user equipment (UE) for transmitting and receiving data in a wireless communication system. The UE receives first time division duplex (TDD) uplink-downlink configuration information for a first cell and second TDD uplink-downlink configuration information for a second cell, determines whether a subframe in the first cell is a special subframe and the subframe in the second cell is a downlink subframe according to the first and second TDD uplink-downlink configuration information, and determine, if the subframe in the first cell is the special subframe and the subframe in the second cell is the downlink subframe, not to receive a signal on the second cell in orthogonal frequency division multiplexing (OFDM) symbols that overlaps with at least one of a guard period (GP) or uplink pilot time slot in the first cell. ## Claims ### Claim 1 A method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving, from a base station, first time division duplex (TDD) configuration information for a first cell and second TDD configuration information for a second cell; transmitting, to the base station, a sounding reference signal (SRS) on the first cell based on the first TDD configuration information; and determining, based on the first TDD configuration information and the second TDD configuration information, not to receive a physical downlink shared channel (PDSCH) on the second cell in a time that overlaps with a transmission time of the SRS on the first cell and in a time that overlaps with a switching time between an uplink and a downlink. ### Claim 2 (depends on 1) The method of claim 1, wherein the UE is not capable of simultaneous reception and transmission on the first cell and the second cell. ### Claim 3 A method performed by a user equipment (UE) in a wireless communication system, the method comprising: transmitting, to a base station, a sounding reference signal (SRS) on a first cell; and determining not to receive a physical downlink shared channel (PDSCH) on a second cell in a time that overlaps with a transmission time of the SRS on the first cell and in a time that overlaps with a switching time between an uplink and a downlink, in case that the UE is not capable of simultaneous reception and transmission on the first cell and the second cell. ### Claim 4 (depends on 3) The method of claim 3, further comprising: receiving, from the base station, first time division duplex (TDD) configuration information for the first cell and second TDD configuration information the second cell. ### Claim 5 A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; and a controller configured to: transmit, to a base station via the transceiver, sounding reference signal (SRS) on a first cell, and determine not to receive a physical downlink shared channel (PDSCH) on a second cell in a time that overlaps with a transmission time of the SRS on the first cell and in a time that overlaps with a switching time between an uplink and a downlink, in case that the UE is not capable of simultaneous reception and a transmission on the first cell and the second cell. ### Claim 6 (depends on 5) The UE of claim 5, wherein the controller is further configured to receive, from the base station via the transceiver, first time division duplex (TDD) configuration information for the first cell and second TDD configuration information for the second cell. ### Claim 7 A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; and a controller configured to: receive, from a base station via the transceiver, first time division duplex (TDD) configuration information for a first cell and second TDD configuration information for a second cell, transmit, to the base station via the transceiver, a sounding reference signal (SRS) on the first cell based on the first TDD configuration information, and determine, based on the first TDD configuration information and the second TDD configuration information, not to receive a physical downlink shared channel (PDSCH) on the second cell in a time that overlaps with a transmission time of the SRS on the first cell and in a time that overlaps with a switching time between an uplink and a downlink. ### Claim 8 (depends on 7) The UE of claim 7, wherein the UE is not capable of simultaneous reception and a transmission on the first cell and the second cell.