# US 11,451,328 B2 · Method for determining slot format of user equipment in wireless communication system and user equipment using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,328 B2 - Document ID: US11451328B2 - Status: Granted - Kind: B2 - Application number: 16/998,510 - Filed: 2020-08-20 - Published: 2020-12-03 - Granted: 2022-09-20 - Earliest claimed: 2018-04-06 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Soonki Jo; Yunjung Yi - Web page: https://patentgrep.com/patent/US11451328B2 ## CPC - H04L 1/003: {Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits} - H04L 5/0078: {Timing of allocation} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)} - H04L 27/2607: {Cyclic extensions} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 88/023: {with message or information receiving capability} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - 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 of determining a slot format in a wireless communication system, where the method is performed by a user equipment (UE) and includes: receiving, from a network, slot format information informing a first slot format for a plurality of normal symbols that are arranged within a period of time, wherein each of the plurality of normal symbols includes a normal cyclic prefix (CP). The method further includes: based on the received slot format information informing the first slot format, determining a second slot format for a plurality of extended symbols that are arranged within the period of time, wherein each of the plurality of extended symbols includes an extended CP. ## Claims ### Claim 1 A method for determining a slot format in a wireless communication system, the method performed by a user equipment (UE) and comprising: receiving, from a network, slot format information informing a first slot format for a plurality of normal symbols in a time duration, wherein each of the plurality of normal symbols includes a normal cyclic prefix (CP), and determining a second slot format for a plurality of extended symbols in the time duration based on the slot format information, wherein each of the plurality of extended symbols includes an extended CP, wherein a first subcarrier spacing (SCS) for the plurality of normal symbols is smaller than a second SCS for the plurality of extended symbols, where each of the plurality of normal symbol is longer than each of the plurality of extended symbols in a time domain, wherein based on an extended symbol of the plurality of extended symbols being overlapped with two normal symbols of the plurality of normal symbols in a time domain, the extended symbol is determined as a downlink symbol, an uplink symbol or a flexible symbol based on each of the two normal symbols being a downlink symbol, an uplink symbol or a flexible symbol, wherein based on the extended symbol being overlapped with a first normal symbol which is the downlink symbol and a second normal symbol which is the uplink symbol in a time domain, the extended symbol is determined as the flexible symbol, and wherein based on a specific extended symbol of the plurality of extended symbols being totally included in a normal symbol of the plurality of normal symbols in a time domain, a symbol type of the specific extended symbol is determined as a symbol type of the normal symbol. ### Claim 2 (depends on 1) The method of claim 1, wherein the first slot format informs that each of the plurality of normal symbols is the downlink symbol, the uplink symbol or the flexible symbol. ### Claim 3 (depends on 1) The method of claim 1, wherein the second slot format informs that each of the plurality of extended symbols is the downlink symbol, the uplink symbol or the flexible symbol. ### Claim 4 (depends on 1) The method of claim 1, wherein based on both of the two normal symbols being the downlink symbol, the uplink symbol or the flexible symbol, the extended symbol is determines as the downlink symbol, the uplink symbol or the flexible symbol. ### Claim 5 (depends on 1) The method of claim 1, wherein based on at least one of the two normal symbols being the flexible symbol, the flexible symbol is determined as the flexible symbol. ### Claim 6 (depends on 1) The method of claim 1, wherein the first slot format is one of a plurality of predetermined first slot formats. ### Claim 7 A user equipment (UE), comprising: a transceiver; and at least one processor, and at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising: receiving, from a network, slot format information informing a first slot format for a plurality of normal symbols in a time duration, wherein each of the plurality of normal symbols includes a normal cyclic prefix (CP), and determining a second slot format for a plurality of extended symbols in the time duration based on the slot format information, wherein each of the plurality of extended symbols includes an extended CP, wherein a first subcarrier spacing (SCS) for the plurality of normal symbols is smaller than a second SCS for the plurality of extended symbols, where each of the plurality of normal symbol is longer than each of the plurality of extended symbols in a time domain, wherein based on an extended symbol of the plurality of extended symbols being overlapped with two normal symbols of the plurality of normal symbols in a time domain, the extended symbol is determined as a downlink symbol, an uplink symbol or a flexible symbol based on each of the two normal symbols being a downlink symbol, an uplink symbol or a flexible symbol, wherein based on the extended symbol being overlapped with a first normal symbol which is the downlink symbol and a second normal symbol which is the uplink symbol in a time domain, the extended symbol is determined as the flexible symbol, and wherein based on a specific extended symbol of the plurality of extended symbols being totally included in a normal symbol of the plurality of normal symbols in a time domain, a symbol type of the specific extended symbol is determined as a symbol type of the normal symbol. ### Claim 8 (depends on 7) The UE of claim 7, wherein the first slot format informs that each of the plurality of normal symbols is the downlink symbol, the uplink symbol or the flexible symbol. ### Claim 9 (depends on 7) The UE of claim 7, wherein the second slot format informs that each of the plurality of extended symbols is the downlink symbol, the uplink symbol or the flexible symbol. ### Claim 10 (depends on 7) The UE of claim 7, wherein based on both of the two normal symbols being the downlink symbol, the uplink symbol or the flexible symbol, the extended symbol is determines as the downlink symbol, the uplink symbol or the flexible symbol. ### Claim 11 (depends on 7) The UE of claim 7, wherein based on at least one of the two normal symbols being the flexible symbol, the flexible symbol is determined as the flexible symbol. ### Claim 12 (depends on 7) The UE of claim 7, wherein the first slot format is one of a plurality of predetermined first slot formats.