# US 11,444,721 B2 · Data segmentation method, apparatus, and terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,721 B2 - Document ID: US11444721B2 - Status: Granted - Kind: B2 - Application number: 16/325,054 - Filed: 2017-01-18 - Published: 2021-09-16 - Granted: 2022-09-13 - Earliest claimed: 2016-08-12 - Assignees: Zte Corporation - Applicants: Zte Corporation - Inventors: Jian Li; Yu Ngok Li; Jun Xu; Peng Hao; Nan Zhang - Web page: https://patentgrep.com/patent/US11444721B2 ## CPC - H04L 1/0023: {characterised by the signalling} - H04L 1/0003: {by switching between different modulation schemes} - H04L 1/0007: {by modifying the frame length} - H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)} - H04L 1/0061: {Error detection codes} - H04L 69/324: in the data link layer [OSI layer 2], e.g. HDLC - H04L 25/08: Modifications for reducing interference; Modifications for reducing effects due to line faults {; Receiver end arrangements for detecting or overcoming line faults} - H04L 2001/0096: {Channel splitting in point-to-point links} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Provided in the present application are a data segmentation method, apparatus, and terminal. The method comprises: a receiving node determines data segmentation indication information corresponding to a first type of data; the receiving node sends the data segmentation indication information to a transmitting node to recommend that the transmitting node use the segmentation method when segmenting the first type of data. The present application solves the problem in the prior art of poor integral link adaptability caused by the interference in some of the resources amongst physical resource blocks. ## Claims ### Claim 1 A data segmentation method, comprising: determining, by a receiving node, data segmentation indication information corresponding to first-type data; and sending, by the receiving node, the data segmentation indication information to a transmitting node to suggest a segmentation manner used by the transmitting node to segment the first-type data, wherein the data segmentation indication information comprises at least one of: a number of the second-type data, a data size of the second-type data, a resource occupied by the second-type data, channel state information used by the second-type data, and a modulation and coding scheme corresponding to the second-type data, and wherein determining by the receiving node data segmentation indication information corresponding to first-type data comprising: determining, by the receiving node, the data segmentation indication information based on one or more of channel state information, an interference condition, a load condition, and service characteristics indicates a value X, and the data segmentation indication information determined by the receiving node based on the capability of the receiving node indicates a value N, the data segmentation indication information actually used indicates min(X, N), where min(X, N) is a function for taking the minimum value of the value X and the value N, and N is a fixed configuration for a specific user. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first-type data comprises a MAC layer protocol data unit PDU and/or a transport block; and the data segmentation indication information indicates that the first-type data is segmented into one or more second-type data, and the second-type data comprises at least one of a transport block, a transport block subset, and a code block subset. ### Claim 3 (depends on 2) The method according to claim 2, wherein the transport block subset comprises a plurality of transport sub-blocks obtained by segmenting the transport block. ### Claim 4 (depends on 2) The method according to claim 2, wherein the code block subset comprises a plurality of code blocks obtained by segmenting the transport block or the transport block subset. ### Claim 5 (depends on 2) The method according to claim 2, wherein the data segmentation indication information further indicates that the transport block subset is segmented into one or more code block subsets. ### Claim 6 (depends on 2) The method according to claim 2, wherein the data segmentation indication information further indicates that the second-type data is segmented into one or more code blocks. ### Claim 7 (depends on 2) The method according to claim 2, wherein the data segmentation indication information indicates at least one of: a number of the second-type data, a data size of the second-type data, a resource occupied by the second-type data, channel state information used by the second-type data, and a modulation and coding scheme corresponding to the second-type data; wherein the resource comprises one or more of a frequency domain resource, a time domain resource, a transport layer, a codeword stream, and a beam, where the resource is from the same transmitting node or multiple transmitting nodes; and wherein the frequency domain resources comprise a physical resource block PRB and/or a sub-band. ### Claim 8 (depends on 7) The method according to claim 7, wherein when the receiving node sends the data segmentation indication information, the sending manner comprises at least one of: sending the number of the second-type data, the data size of the second-type data, the resource occupied by the second-type data, the channel state information used by the second-type data, and the modulation and coding scheme corresponding to the second-type data in a form of separate feedbacks; and sending one or more of the number of the second-type data, the data size of the second-type data, the resource occupied by the second-type data, the channel state information used by the second-type data, and the modulation and coding scheme corresponding to the second-type data after jointly encoding; and wherein determining by the receiving node the data segmentation indication information corresponding to the first-type data, comprises: determining, by the receiving node, the data segmentation indication information based on one or more of channel state information, an interference condition, a load condition, service characteristics and the capability of the receiving node. ### Claim 9 (depends on 1) The method according to claim 1, wherein the segmentation manner indicated by the data segmentation indication information comprises at least one of: an actual number of the segmented data, a size, an occupied resource, a modulation and coding scheme, and a channel used by the segmented data. ### Claim 10 (depends on 2) The method according to claim 2, wherein different second-type data uses different channel quality information and/or uses different modulation and coding schemes. ### Claim 11 (depends on 2) The method according to claim 2, wherein in the case where the second-type data is a code block subset, the second-type data is applied to the same transmitting node; and in the case where the second-type data is composed of a transport block and/or a transport block subset, the second-type data is applied to different transmitting nodes. ### Claim 12 (depends on 2) The method according to claim 2, wherein the transport block can undergo a CRC check process. ### Claim 13 A data segmentation method, comprising: receiving, by a transmitting node, data segmentation indication information sent by a receiving node, and segmenting, by the transmitting node, first-type data according to the data segmentation indication information and an operation parameter of the transmitting node; and sending, by the transmitting node, second-type data resulted from the segmentation and an actual segmentation manner to the receiving node, wherein the data segmentation indication information comprises at least one of: a number of the second-type data, a data size of the second-type data, a resource occupied by the second-type data, channel state information used by the second-type data, and a modulation and coding scheme corresponding to the second-type data; and wherein the data segmentation indication information is determined by the receiving node based on one or more of channel state information, an interference condition, a load condition, service characteristics, and a capability of the receiving node, and when the data segmentation indication information determined by the receiving node based on one or more of channel state information, an interference condition, a load condition, and service characteristics indicates a value X, and the data segmentation indication information determined by the receiving node based on the capability of the receiving node indicates a value N, the data segmentation indication information actually used indicates min(X, N), where min(X, N) is a function for taking the minimum value of the value X and the value N, and N is a fixed configuration for a specific user. ### Claim 14 (depends on 13) The method according to claim 13, wherein the first-type data comprises a MAC layer protocol data unit PDU and/or a transport block; and the second-type data comprises at least one of a transport block, a transport block subset, and a code block sub set. ### Claim 15 (depends on 14) The method according to claim 14, wherein the subset of transport blocks comprises a plurality of transport sub-blocks obtained by segmenting the transport block. ### Claim 16 (depends on 14) The method according to claim 14, wherein the code block subset comprises a plurality of code blocks obtained by segmenting the transport block or the transport block subset. ### Claim 17 A communication system, comprising a first data segmentation apparatus and a second data segmentation apparatus, wherein: the first data segmentation apparatus comprises: a first determining unit configured to determine data segmentation indication information corresponding to first-type data; and a first transmitting unit configured to send the data segmentation indication information to a transmitting node to suggest a segmentation manner used by the transmitting node to segment the first-type data; the second data segmentation apparatus comprises: a receiving unit configured to receive data segmentation indication information sent by a receiving node, and segment the first-type data according to the data segmentation indication information and an operation parameter of a transmitting node; and a second transmitting unit configured to send the second-type data resulted from the segmentation and an actual segmentation manner to the receiving node, wherein the data segmentation indication information comprises at least one of: a number of the second-type data, a data size of the second-type data, a resource occupied by the second-type data, channel state information used by the second-type data, and a modulation and coding scheme corresponding to the second-type data; and wherein the first determining unit determines the data segmentation indication information based on one or more of channel state information, an interference condition, a load condition, service characteristics, and a capability of the receiving node, and when the data segmentation indication information determined by the first determining unit based on one or more of channel state information, an interference condition, a load condition, and service characteristics indicates a value X, and the data segmentation indication information determined by the first determining unit based on the capability of the receiving node indicates a value N, the data segmentation indication information actually used indicates min(X, N), where min(X, N) is a function for taking the minimum value of the value X and the value N, and N is a fixed configuration for a specific user. ### Claim 18 (depends on 17) The communication system according to claim 17, wherein the first-type data comprises a MAC layer protocol data unit PDU and/or a transport block; and the data segmentation indication information indicates that the first-type data is segmented into one or more second-type data, wherein the second-type data comprises at least one of a transport block, a transport block subset, and a code block subset. ### Claim 19 (depends on 17) The communication system according to claim 17, wherein the first-type data comprises a MAC layer protocol data unit PDU and/or a transport block; and the second-type data comprises at least one of a transport block, a transport block subset, and a code block subset.