# US 12,010,713 B2 · Methods and apparatuses for transmitting and receiving a preemption indication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,713 B2 - Document ID: US12010713B2 - Status: Granted - Kind: B2 - Application number: 18/134,113 - Filed: 2023-04-13 - Published: 2023-08-10 - Granted: 2024-06-11 - Earliest claimed: 2022-03-09 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Zhaobang Miao; Yukai Gao; Gang Wang - Web page: https://patentgrep.com/patent/US12010713B2 ## CPC - H04W 72/53: based on regulatory allocation policies - H04W 72/569: {of the traffic information} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/27: Transitions between radio resource control [RRC] states - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments of the present disclosure relate to a method, network device, and apparatus for transmitting a preemption indication and a method, terminal device, and apparatus for receiving a preemption indication. In an embodiment of the present disclosure, the method of transmitting a preemption indication may comprise transmitting a preemption indication to a terminal device, wherein the preemption indication indicates information on a portion of resources allocated to a first transmission which is preempted by a second transmission, and wherein the preemption indication is associated with information on structure of the current slot. In embodiments of the present disclosure, by means of information on structure of a subframe, the indication monitoring and overhead for the preemption indication can be reduced remarkably, thereby providing a much more efficient preemption indication solution. ## Claims ### Claim 1 A method performed by a first User Equipment (UE), the method comprising: receiving first information from a base station, wherein the first information comprises information on a number of downlink symbols configured in a slot; receiving second information from the base station in a Radio Resource Control (RRC) signaling; receiving a preemption indication from the base station; determining a first resource set based on the first information; identifying, based on the preemption indication, that a first transmission of a Physical Downlink Shared Channel (PDSCH) to the first UE is preempted in a first portion of resources within the first resource set, by a second transmission related to a latency requirement; and determining, based on the second information, whether the first portion of resources is associated with one of contiguous portions into which a bandwidth configured for the first UE is equally divided in a frequency domain. ### Claim 2 (depends on 1) The method according to claim 1, wherein the preemption indication contains only resource preemption information in a time domain. ### Claim 3 (depends on 1) The method according to claim 1, wherein the preemption indication contains a start symbol and a duration of the first portion. ### Claim 4 (depends on 1) The method according to claim 1, wherein possible start symbols of the first portion are restricted to predefined symbols. ### Claim 5 (depends on 1) The method according to claim 1, wherein a timing corresponding to the first resource set is prior to receiving the preemption indication. ### Claim 6 A method performed by a base station, the method comprising: transmitting first information to a first User Equipment (UE), wherein the first information comprises information on a number of downlink symbols configured in a slot; transmitting second information to the first UE in a Radio Resource Control (RRC) signaling; and transmitting a preemption indication to the first UE, and wherein a first resource set is based on the first information, wherein the preemption indication indicates that a first transmission of a Physical Downlink Shared Channel (PDSCH) to the first UE is preempted in a first portion of resources within the first resource set, by a second transmission related to a latency requirement, and wherein, whether the first portion of resources is associated with one of contiguous portions into which a bandwidth configured for the first UE is equally divided into in a frequency domain, is indicated by the second information. ### Claim 7 (depends on 6) The method according to claim 6, wherein the preemption indication contains only resource preemption information in a time domain. ### Claim 8 (depends on 6) The method according to claim 6, wherein the preemption indication contains a start symbol and a duration of the first portion. ### Claim 9 (depends on 6) The method according to claim 6, wherein possible start symbols of the first portion are restricted to predefined symbols. ### Claim 10 (depends on 6) The method according to claim 6, wherein a timing corresponding to the first resource set is prior to transmitting the preemption indication. ### Claim 11 A first User Equipment (UE) comprising: a memory storing instructions; and at least one hardware processor configured to process the instructions to: receive first information from a base station, wherein the first information comprises information on a number of downlink symbols configured in a slot; receive second information from the base station in a Radio Resource Control (RRC) signaling; receive a preemption indication from the base station; determine a first resource set based on the first information; identify, based on the preemption indication, that a first transmission of a Physical Downlink Shared Channel (PDSCH) to the first UE is preempted in a first portion of resources within the first resource set, by a second transmission related to a latency requirement; and determine, based on the second information, whether the first portion of resources is associated with one of contiguous portions into which a bandwidth configured for the first UE is equally divided in a frequency domain. ### Claim 12 (depends on 11) The first UE according to claim 11, wherein the preemption indication contains only resource preemption information in a time domain. ### Claim 13 (depends on 11) The first UE according to claim 11, wherein the preemption indication contains a start symbol and a duration of the first portion. ### Claim 14 (depends on 11) The first UE according to claim 11, wherein possible start symbols of the first portion are restricted to predefined symbols. ### Claim 15 (depends on 11) The first UE according to claim 11, wherein a timing corresponding to the first resource set is prior to receiving the preemption indication.