# US 12,184,572 B2 · Information transmission method, network device, and terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,572 B2 - Document ID: US12184572B2 - Status: Granted - Kind: B2 - Application number: 17/581,725 - Filed: 2022-01-21 - Published: 2022-05-12 - Granted: 2024-12-31 - Earliest claimed: 2019-07-24 - Assignees: Vivo Mobile Communication Co., Ltd. - Applicants: Vivo Mobile Communication Co., Ltd. - Inventors: Xiaodong Shen; Peng Sun - Web page: https://patentgrep.com/patent/US12184572B2 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - 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 5/0083: {symbol-by-symbol} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04L 27/2602: {Signal structure} - H04L 27/2607: {Cyclic extensions} - H04L 27/2613: {Structure of the reference signals} - H04L 5/0023: {Time-frequency-space} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract An information transmission method includes: sending target information on at least one sub symbol of a first OFDM symbol. The first OFDM symbol includes at least two sub symbols. ## Claims ### Claim 1 An information transmission method, applied to a network device and comprising: sending target information on at least one sub symbol of a first orthogonal frequency division multiplexing (OFDM) symbol, wherein the first OFDM symbol comprises at least two sub symbols, a time-domain resource of the at least one sub symbol is a part or all of a target time-domain resource, the target time-domain resource is a time-domain resource that is used to transmit a cyclic prefix before the first OFDM symbol is divided into the at least two sub symbols, and a cyclic prefix time of the first OFDM symbol is greater than a cyclic prefix time of other OFDM symbols in the same frame structure; and the target information comprises at least one of following: at least a part of content of a specific reference signal; at least a part of content of a channel; or information that corresponds to an available signal region before the first OFDM symbol is divided into the at least two sub symbols. ### Claim 2 (depends on 1) The information transmission method according to claim 1, wherein before the sending target information on at least one sub symbol of a first OFDM symbol, the method further comprises: sending configuration information of the target information. ### Claim 3 (depends on 2) The information transmission method according to claim 2, wherein the sending configuration information of the target information comprises: sending the configuration information of the target information based on a configuration signaling unit of the first OFDM symbol. ### Claim 4 (depends on 2) The information transmission method according to claim 2, wherein the target information comprises at least one of entire content of a specific reference signal or entire content of a channel; and the configuration information comprises at least one of following: a type of a signal or a channel; a period and an offset of the first OFDM symbol; a mapping time-frequency position of the signal or the channel; a sending manner of the signal or the channel; or an antenna sending manner of the signal or the channel; and/or the target information comprises at least one of a part of content of a specific reference signal or a part of content of a channel; and the configuration information comprises: indication information, wherein the indication information is used to indicate a sub symbol used to transmit the target information. ### Claim 5 (depends on 4) The information transmission method according to claim 4, wherein the indication information is information in a sub symbol indication domain. ### Claim 6 (depends on 2) A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the information transmission method according to claim 2 are implemented. ### Claim 7 (depends on 1) The information transmission method according to claim 1, wherein the sending target information on at least one sub symbol of a first OFDM symbol comprises: determining that the at least one sub symbol comprises a target sub symbol, sending the target information on the target sub symbol in a frequency-domain interleaved allocation manner or a target sub-carrier space manner, wherein a time-domain length of a signal part of the target sub symbol is less than a time-domain length of a signal part of a second OFDM symbol in a same frame structure, a cyclic prefix time of the second OFDM symbol is less than a cyclic prefix time before the first OFDM symbol is divided into the at least two sub symbols, and the target sub-carrier space is greater than sub-carrier space of the second OFDM symbol. ### Claim 8 (depends on 1) The information transmission method according to claim 1, wherein a time-domain length of each sub symbol is specified by a protocol or configured by a network. ### Claim 9 (depends on 1) A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the information transmission method according to claim 1 are implemented. ### Claim 10 A network device, comprising a memory, a processor, and a computer program that is stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the network device to perform: sending target information on at least one sub symbol of a first orthogonal frequency division multiplexing (OFDM) symbol, wherein the first OFDM symbol comprises at least two sub symbols, a time-domain resource of the at least one sub symbol is a part or all of a target time-domain resource, the target time-domain resource is a time-domain resource that is used to transmit a cyclic prefix before the first OFDM symbol is divided into the at least two sub symbols, and a cyclic prefix time of the first OFDM symbol is greater than a cyclic prefix time of other OFDM symbols in the same frame structure; and the target information comprises at least one of following: at least a part of content of a specific reference signal; at least a part of content of a channel; or information that corresponds to an available signal region before the first OFDM symbol is divided into the at least two sub symbols. ### Claim 11 (depends on 10) The network device according to claim 10, wherein the computer program, when executed by the processor, causes the network device to further perform: sending configuration information of the target information. ### Claim 12 (depends on 11) The network device according to claim 11, wherein the computer program, when executed by the processor, causes the network device to perform: sending the configuration information of the target information based on a configuration signaling unit of the first OFDM symbol. ### Claim 13 (depends on 11) The network device according to claim 11, wherein the target information comprises at least one of entire content of a specific reference signal or entire content of a channel; and the configuration information comprises at least one of following: a type of a signal or a channel; a period and an offset of the first OFDM symbol; a mapping time-frequency position of the signal or the channel; a sending manner of the signal or the channel; or an antenna sending manner of the signal or the channel; and/or the target information comprises at least one of a part of content of a specific reference signal or a part of content of a channel; and the configuration information comprises: indication information, wherein the indication information is used to indicate a sub symbol used to transmit the target information. ### Claim 14 (depends on 13) The network device according to claim 13, wherein the indication information is information in a sub symbol indication domain. ### Claim 15 (depends on 10) The network device according to claim 10, wherein the computer program, when executed by the processor, causes the network device to perform: determining that the at least one sub symbol comprises a target sub symbol, sending the target information on the target sub symbol in a frequency-domain interleaved allocation manner or a target sub-carrier space manner, wherein a time-domain length of a signal part of the target sub symbol is less than a time-domain length of a signal part of a second OFDM symbol in a same frame structure, a cyclic prefix time of the second OFDM symbol is less than a cyclic prefix time before the first OFDM symbol is divided into the at least two sub symbols, and the target sub-carrier space is greater than sub-carrier space of the second OFDM symbol. ### Claim 16 (depends on 10) The network device according to claim 10, wherein a time-domain length of each sub symbol is specified by a protocol or configured by a network. ### Claim 17 A terminal, comprising a memory, a processor, and a computer program that is stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the terminal to perform: receiving target information sent by a network device on at least one sub symbol of a first orthogonal frequency division multiplexing (OFDM) symbol, wherein the first OFDM symbol comprises at least two sub symbols, a time-domain resource of the at least one sub symbol is a part or all of a target time-domain resource, the target time-domain resource is a time-domain resource that is used to transmit a cyclic prefix before the first OFDM symbol is divided into the at least two sub symbols, and a cyclic prefix time of the first OFDM symbol is greater than a cyclic prefix time of other OFDM symbols in the same frame structure; and the target information comprises at least one of following: at least a part of content of a specific reference signal; at least a part of content of a channel; or information that corresponds to an available signal region before the first OFDM symbol is divided into the at least two sub symbols. ### Claim 18 (depends on 17) The terminal according to claim 17, wherein the computer program, when executed by the processor, causes the terminal to further perform: obtaining configuration information of the target information according to a protocol; or receiving configuration information, sent by the network device, of the target information. ### Claim 19 (depends on 18) The terminal according to claim 18, wherein the target information comprises at least one of entire content of a specific reference signal or entire content of a channel; and the configuration information comprises at least one of following: a type of a signal or a channel; a period and an offset of the first OFDM symbol; a mapping time-frequency position of the signal or the channel; a sending manner of the signal or the channel; or an antenna sending manner of the signal or the channel; and/or the target information comprises at least one of a part of content of a specific reference signal or a part of content of a channel; and the configuration information further comprises: indication information, wherein the indication information is used to indicate a sub symbol used to transmit the target information. ### Claim 20 (depends on 19) The terminal according to claim 19, wherein the indication information is information in a sub symbol indication domain.