# US 12,184,424 B2 · Data frame transmission method and apparatus, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,424 B2 - Document ID: US12184424B2 - Status: Granted - Kind: B2 - Application number: 17/295,402 - Filed: 2019-11-19 - Published: 2022-01-06 - Granted: 2024-12-31 - Earliest claimed: 2018-11-19 - Assignees: Zte Corporation - Applicants: Zte Corporation - Inventors: Jianfeng Lv; Ning Wei; Nan Li; Bo Sun - Web page: https://patentgrep.com/patent/US12184424B2 ## CPC - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/0007: {by modifying the frame length} - H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes - H04L 1/1825: Adaptation of specific ARQ protocol parameters according to transmission conditions - H04L 1/1896: {ARQ related signaling} - H04L 1/0059: {Convolutional codes} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Provided are a method and apparatus for transmitting a data frame and a storage medium. The method for transmitting a data frame includes that a sender adds a hybrid automatic repeat request (HARQ)-related field into the data frame and that the sender transmits the data frame with the added HARQ-related field to a receiver. The HARQ-related field includes a HARQ indication field and an identity identification field, the HARQ indication field indicates whether the data frame is required to be processed according to a HARQ process, and the identity identification field indicates an identity identification of a target receiver of the data frame. ## Claims ### Claim 1 A method for transmitting a data frame, comprising: determining, by a sender, whether enabling a hybrid automatic repeat request (HARQ) process; modulating, by a sender, a signal (SIG) field of preamble portion of the data frame using different modulation schemes for indicating whether enabling the HARQ process; and transmitting, by the sender, the data frame whose the SIG field of the preamble portion is modulated using the different modulation schemes to a receiver; wherein modulating data blocks corresponding to the SIG field using binary phase shift keying (BPSK) modulation indicates that the HARQ process is disabled and modulating the data blocks corresponding to the SIG field using quadrature-binary phase shift keying (Q-BPSK) modulation indicates that the HARQ process is enabled. ### Claim 2 (depends on 1) The method of claim 1, wherein the SIG field comprises a HARQ-related field, and the HARQ-related field comprises a combining manner indication field, indicating how to combine data blocks of the data frame. ### Claim 3 (depends on 2) The method of claim 2, wherein the HARQ-related field comprises a retransmission indication field and a representation manner of the retransmission indication field comprises an implicit representation; wherein the implicit representation refers to one of: indirectly indicating whether the data frame is a retransmission frame through whether a modulation scheme of one or more data blocks in the data frame is different from a preset modulation scheme of the one or more data blocks, or indirectly indicating whether the data frame is the retransmission frame according to whether a target receiver is able to find a target frame of the data frame, and a length of the retransmission indication field is zero. ### Claim 4 (depends on 2) The method of claim 2, wherein the HARQ-related field comprises a HARQ indication field and a representation manner of the HARQ indication field comprises an implicit representation; wherein the implicit representation refers to indirectly indicating whether the data frame is required to be processed according to the HARQ process through whether a modulation scheme of one or more data blocks in the data frame is different from a preset modulation scheme of the one or more data blocks, and a length of the HARQ indication field is zero. ### Claim 5 (depends on 1) A sending terminal, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is configured to, when executed by the processor, implement the method for transmitting a data frame of claim 1. ### Claim 6 (depends on 1) A non-transitory computer-readable storage medium storing a computer program, wherein the computer program is configured to, when executed, implement the method for transmitting a data frame of claim 1. ### Claim 7 (depends on 1) The method of claim 1, wherein the SIG field comprises a HARQ-related field, and the HARQ-related field comprises: a Media Access Control (MAC) address field, indicating that at least one of the following is used: an association identifier of a target receiver, a calculated value related to the association identifier, a packet identifier, a Basic Service Set (BSS) identifier, a MAC address, or a calculated value related to the MAC address. ### Claim 8 A method for transmitting a data frame, comprising: receiving, by a receiver, a data frame from a sender; judging whether a hybrid automatic repeat request (HARQ) process is enabled by identifying a modulation scheme of a signal (SIG) field of preamble portion of the data frame; and processing, by the receiver, the data frame whose the SIG field of the preamble portion is modulated using different modulation schemes; wherein data blocks corresponding to the SIG field being modulated using binary phase shift keying (BPSK) modulation indicates that the HARQ process is disabled and the data blocks corresponding to the SIG field being modulated using quadrature-binary phase shift keying (Q-BPSK) modulation indicates that the HARQ process is enabled. ### Claim 9 (depends on 3) A receiving terminal, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is configured to, when executed by the processor, implement the method for transmitting a data frame of claim 3. ### Claim 10 (depends on 3) A non-transitory computer-readable storage medium storing a computer program, wherein the computer program is configured to, when executed, implement the method for transmitting a data frame of claim 3. ### Claim 11 (depends on 3) The method of claim 3, wherein the SIG field comprises a HARQ-related field, and the HARQ-related field comprises: a combining manner indication field, indicating how to combine data blocks of the data frame. ### Claim 12 (depends on 3) The method of claim 3, wherein the SIG field comprises a HARQ-related field, and the HARQ-related field comprises: a Media Access Control (MAC) address field, indicating that at least one of the following is used: an association identifier of a target receiver, a calculated value related to the association identifier, a packet identifier, a Basic Service Set (BSS) identifier, a MAC address, or a calculated value related to the MAC address.