Code block segmentation method and device, network equipment and medium

Abstract

The invention provides a code block segmentation method and device, network equipment and a medium, and the method is applied to a sending end, and comprises the steps: carrying out the semantic segmentation of a to-be-sent transmission block, and obtaining a plurality of feature sequences; wherein in the plurality of feature sequences, the lengths of at least two feature sequences are different; determining the coding rate of each feature sequence according to the importance levels of the plurality of feature sequences; according to the coding rates corresponding to the plurality of feature sequences respectively, coding each feature sequence to obtain coded data of the transmission block; and sending the coded data to a receiving end. Differential transmission is carried out according to the importance degree of the semantic features, the problem that semantic feature differential coding is difficult to support effectively due to the fact that code rates and code lengths of all code blocks in the same transmission code are the same in the prior art is solved, the transmission efficiency of a future semantic communication system is improved, and resource overhead is reduced.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a code block segmentation method, device, network equipment and medium. Background Art

[0002] Based on the classic Shannon information theory, semantic communication extends the transmission of information from the grammatical level to the semantic and pragmatic levels. Figure 1 It is the main component of the semantic communication system, including semantic information acquisition / recovery, semantic encoding / decoding, channel encoding / decoding, transmitter / receiver knowledge base and cloud shared knowledge base. The code block length supported by the LDPC (Low-density Parity-check) encoder in the current NR (New Radio) protocol is limited. When the actual length of the code block is greater than the maximum length, code block segmentation is required. Figure 2 As shown in the figure, different base graphs can meet the transmission requirements in different scenarios. The NR protocol will decide to use BG (Base Graph) 1 and BG2 for encoding according to the size of the transmission block and the coding rate. In semantic communication, important semantic features will be compressed to a greater extent to add more redundancy to the channel coding and achieve more reliable transmission. This requires the physical layer to adopt different coding schemes (such as code rate, code length, etc.) according to the importance of the semantic features during the channel coding process. However, Figure 3 As shown in the existing NR protocol, each transmission block (TB) together with its TB-level CRC (Cyclic Redundancy Check) will be divided into information sequences of the same length, and then encoded into different LDPC (Low-density Parity-check) code blocks at the same code rate. This code block segmentation method makes the code rate and code length of each code block in the same TB the same, which makes it difficult to effectively support differentiated encoding of semantic features. Summary of the invention

[0003] The purpose of the present invention is to provide a code block segmentation method, device, network equipment and medium, which are used to solve the problem in the prior art that the code rate and code length of each code block in the same transmission code are the same, making it difficult to effectively support differentiated encoding of semantic features.

[0004] In order to solve the above technical problem, an embodiment of the present invention provides a code block segmentation method, wherein the method is applied to a transmitting end and includes:

[0005] Semantically segmenting the transmission block to be sent to obtain a plurality of characteristic sequences; wherein at least two of the plurality of characteristic sequences have different lengths;

[0006] Determining the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences;

[0007] According to the encoding code rates respectively corresponding to the plurality of characteristic sequences, encoding each of the characteristic sequences to obtain the encoded data of the transmission block;

[0008] The encoded data is sent to a receiving end.

[0009] Optionally, the method further comprises:

[0010] A first signaling is sent to the receiving end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0011] Optionally, in the method, the first signaling includes one or more of the following signaling:

[0012] Downlink control information DCI signaling;

[0013] Media Access Control MAC Control Element CE signaling;

[0014] Radio Resource Control (RRC) signaling.

[0015] Optionally, in the method, when the first signaling includes DCI signaling, the DCI signaling includes a plurality of indicator bits, each indicator bit corresponds to indicating a segment length of at least one characteristic sequence, and the number of bits N of the indicator bits is related to the number of bits of the importance level of the segment length of the corresponding indicated characteristic sequence;

[0016] Among them, according to the order of importance level from high to low, the segment lengths of the multiple feature sequences are arranged from small to large.

[0017] Optionally, in the method, the ratios of the segment lengths of the plurality of feature sequences are arranged according to the following first rule: 0 :2 1 :…:2 L-1 ; Wherein, L is the number of the plurality of characteristic sequences.

[0018] Optionally, the method further comprises:

[0019] If the length of the feature sequence obtained by semantic segmentation is less than the segment length of the corresponding feature sequence determined according to the first rule, when encoding each feature sequence, the segment length of the encoded feature sequence is made to comply with the first rule by padding with zeros.

[0020] Optionally, in the method, the DCI signaling includes the number of the plurality of characteristic sequences, the MCS level of each of the plurality of characteristic sequences, and the sorting index of the plurality of characteristic sequences;

[0021] Among them, in the DCI signaling, the MCS level of the characteristic sequence and the number of bits occupied by the sorting indexes of multiple characteristic sequences are related to the number of the characteristic sequences.

[0022] Optionally, the method, wherein, in the case where the first signaling includes MAC CE signaling, the MAC CE signaling includes a start sub-sub protocol data unit PDU and a sub PDU;

[0023] The subheader in the starting sub PDU includes the index of the transport block and the number of the multiple characteristic sequences of the transport block, and the number of bits occupied by the index of the transport block is related to the number of the transport blocks, and the number of bits occupied by the number of the characteristic sequences is related to the number of the multiple characteristic sequences; the segment Segment MAC CE in the starting sub PDU includes the sorting index of the multiple characteristic sequences, and the number of bits occupied by the sorting index is related to the number of the multiple characteristic sequences;

[0024] The subheader in the sub PDU includes MCS indexes of multiple feature sequences and segment lengths of multiple feature sequences, and the number of bits occupied by the segment lengths is related to the segment lengths; the MAC feature vector data unit FDU in the sub PDU includes contents of multiple feature sequences, and the number of bits occupied by the contents of multiple feature sequences is related to the segment lengths of multiple feature sequences.

[0025] Optionally, in the method, when the first signaling includes RRC signaling, the RRC signaling includes the number of the plurality of characteristic sequences, the MCS index of the characteristic sequence and the sorting index of the characteristic sequence;

[0026] Among them, in the RRC signaling, the number of the characteristic sequences and the number of bits occupied by the sorting index of the characteristic sequences are related to the number of the characteristic sequences.

[0027] In order to achieve the above object, the present invention provides a code block segmentation method, wherein the method is applied to a receiving end and comprises:

[0028] Receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple characteristic sequences, among which at least two of the multiple characteristic sequences have different lengths, and the encoding code rates of the multiple characteristic sequences are determined according to the importance levels of the multiple characteristic sequences.

[0029] Optionally, the method further comprises:

[0030] Receive a first signaling sent by the transmitting end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0031] Optionally, in the method, the first signaling includes one or more of the following signaling:

[0032] DCI signaling;

[0033] MAC CE signaling;

[0034] RRC signaling.

[0035] In order to achieve the above object, the present invention provides a code block segmentation device, wherein the device is applied to a transmitting end and comprises:

[0036] A first acquisition module is used to semantically segment the transmission block to be sent to obtain multiple characteristic sequences; wherein, among the multiple characteristic sequences, at least two of the characteristic sequences have different lengths;

[0037] A first determination module, configured to determine the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences;

[0038] A second acquisition module, configured to encode each of the characteristic sequences according to the encoding code rates respectively corresponding to the plurality of characteristic sequences, to obtain the encoded data of the transmission block;

[0039] The first sending module is used to send the encoded data to a receiving end.

[0040] In order to achieve the above object, the present invention provides a code block segmentation device, wherein the device is applied to a receiving end and comprises:

[0041] The first receiving unit is used to receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple feature sequences, among which at least two feature sequences have different lengths, and the encoding code rates of the multiple feature sequences are determined according to the importance levels of the multiple feature sequences.

[0042] In order to achieve the above object, the present invention provides a network device, which is applied to a sending end and includes a processor, wherein the processor is used to:

[0043] Semantically segmenting the transmission block to be sent to obtain a plurality of characteristic sequences; wherein at least two of the plurality of characteristic sequences have different lengths;

[0044] Determining the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences;

[0045] According to the encoding code rates respectively corresponding to the plurality of characteristic sequences, encoding each of the characteristic sequences to obtain the encoded data of the transmission block;

[0046] The encoded data is sent to a receiving end.

[0047] In order to achieve the above object, the present invention provides a network device, which is applied to a receiving end and includes a processor, wherein the processor is used to:

[0048] Receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple characteristic sequences, among which at least two of the multiple characteristic sequences have different lengths, and the encoding code rates of the multiple characteristic sequences are determined according to the importance levels of the multiple characteristic sequences.

[0049] In order to achieve the above-mentioned purpose, the present invention provides a network device, including: a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; wherein, when the processor executes the program or instruction, it implements the code block segmentation method applied to the transmitting end as described above, or implements the code block segmentation method applied to the receiving end as described above.

[0050] In order to achieve the above-mentioned purpose, the present invention provides a readable storage medium having a program or instruction stored thereon, wherein when the program or instruction is executed by a processor, the steps of the code block segmentation method applied to the transmitting end as described above are implemented, or the steps of the code block segmentation method applied to the receiving end as described above are implemented.

[0051] The beneficial effects of the above technical solution of the present invention are as follows:

[0052] In the above scheme, the transmission block to be sent is segmented into multiple feature sequences of different lengths according to the semantic features, and different encoding rates are used to encode the feature sequences according to their importance, and then the sequences are sent to the receiving end. Differentiated transmission is performed according to the importance of the semantic features, which solves the problem in the prior art that the code rate and code length of each code block in the same transmission code are the same, making it difficult to effectively support differentiated encoding of semantic features, and is conducive to improving the transmission efficiency of future semantic communication systems and reducing resource overhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a block diagram of a semantics-based communication system in the prior art;

[0054] Figure 2 A schematic diagram for selecting a base diagram in the prior art;

[0055] Figure 3 It is a schematic diagram of code block segmentation in the NR protocol in the prior art;

[0056] Figure 4 A schematic diagram of the steps of the code block segmentation method according to an embodiment of the present invention;

[0057] Figure 5 A schematic diagram of a code block segmentation method according to an embodiment of the present invention;

[0058] Figure 6 A schematic diagram of MAC CE signaling of the code block segmentation method according to an embodiment of the present invention;

[0059] Figure 7 A schematic diagram of a code block segmentation device according to an embodiment of the present invention;

[0060] Figure 8 It is a structural diagram of the code block segmentation device described in an embodiment of the present invention. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] The present invention aims to solve the problem in the prior art that the code rate and code length of each code block in the same transmission code are the same, making it difficult to effectively support differentiated encoding of semantic features. A code block segmentation method, device, network equipment and medium are provided.

[0063] like Figure 4 and Figure 5 As shown, an embodiment of the present invention provides a code block segmentation method, wherein the method is applied to a transmitting end and includes:

[0064] Step S41, semantically segmenting the transmission block to be sent to obtain multiple characteristic sequences; wherein at least two of the multiple characteristic sequences have different lengths;

[0065] Step S42, determining the encoding bit rate of each of the feature sequences according to the importance levels of the multiple feature sequences;

[0066] Step S43, encoding each of the characteristic sequences according to the encoding code rates respectively corresponding to the plurality of characteristic sequences, to obtain the encoded data of the transmission block;

[0067] Step S44: sending the encoded data to a receiving end.

[0068] In this embodiment, the transmission block to be sent is segmented into a plurality of feature sequences of different lengths according to the semantic features, and is encoded using different encoding rates according to the importance of the feature sequences, and then sent to the receiving end. Differentiated transmission is performed according to the importance of the semantic features, which solves the problem in the prior art that the code rate and code length of each code block in the same transmission code are the same, and it is difficult to effectively support differentiated encoding of semantic features, which is conducive to improving the transmission efficiency of future semantic communication systems and reducing resource overhead.

[0069] Optionally, the method further comprises:

[0070] A first signaling is sent to the receiving end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0071] In this embodiment, if Figure 4 As shown in Figure 1, the transmitter performs semantic segmentation and importance evaluation on the transmission content of the upper layer service (such as text, image, voice, etc.) through source coding, and obtains L feature sequences (Feature Vector, FV), namely FV1, ..., FV L, which are transmitted through the same TB. The effective lengths of the feature sequences are k1, ..., k L , the total length is The importance of feature sequences is ranked as (w1,…,w l ,…,w L ), l = 1, ..., L, and accordingly different code rates {r1, ..., r L In order to facilitate decoding at the receiving end, the segment length, importance level, encoding rate, sorting information, and number of the characteristic sequences need to be notified to the receiving end.

[0072] Optionally, in the method, the first signaling includes one or more of the following signaling:

[0073] Downlink control information DCI signaling;

[0074] Media Access Control MAC Control Element CE signaling;

[0075] Radio Resource Control (RRC) signaling.

[0076] In this embodiment, the transmitting end sends one or more of the segment length, importance level, coding rate, sorting information, and the number of the characteristic sequences to the receiving end using methods including but not limited to DCI signaling, MACCE signaling, and RRC signaling.

[0077] Optionally, in the method, when the first signaling includes DCI signaling, the DCI signaling includes a plurality of indicator bits, each indicator bit corresponds to indicating a segment length of at least one characteristic sequence, and the number of bits N of the indicator bits is related to the number of bits of the importance level of the segment length of the corresponding indicated characteristic sequence;

[0078] Among them, according to the order of importance level from high to low, the segment lengths of the multiple feature sequences are arranged from small to large.

[0079] In this embodiment, in order to better adapt to the changes in channel status during the communication process and adjust the coding rate of the feature sequence in time, the DCI signaling in the existing NR protocol can be expanded to notify information such as the length, importance level and coding rate of the feature sequence. Considering the limitation of the field length in DCI, it is necessary to reduce the signaling overhead. To this end, the ratio of the lengths of each segment can be determined according to the number of feature sequences, and segmentation can be performed after rate matching. In semantic communication, semantic features with high importance are usually compressed to a greater extent so that more redundant bits can be added to the data after the source compression during the channel coding process. Therefore, feature sequences with higher importance are usually shorter in length. Taking L feature vectors as an example, the ratio of the lengths of each segment is calculated according to the importance (w1,…,w L ) are sorted from high to low, and divided into L importance levels, which can be represented by (logL) bits information accordingly. Therefore, the number of bits N of the indicator bit is related to the number of bits of the importance level of the segment length of the corresponding indicated feature sequence.

[0080] Optionally, in the method, the ratios of the segment lengths of the plurality of feature sequences are arranged according to the following first rule: 0 :2 1 :…:2 L-1 ; Wherein, L is the number of the plurality of characteristic sequences.

[0081] In this embodiment, taking L feature vectors as an example, the ratio of the lengths of each segment is calculated according to the importance (w1,…,w L ) The order from high to low can be expressed as: 2 0 :2 1 :…:2L-1 .

[0082] Optionally, the method further comprises:

[0083] If the length of the feature sequence obtained by semantic segmentation is less than the segment length of the corresponding feature sequence determined according to the first rule, when encoding each feature sequence, the segment length of the encoded feature sequence is made to comply with the first rule by padding with zeros.

[0084] In this embodiment, since the actual feature sequence length is According to the ratio 2 0 :2 1 :…:2 L-1 , fill zeros for feature vectors with insufficient length. Accordingly, the actual segment length of each feature vector is:

[0085]

[0086] The length of zero bits added to different eigenvectors is In addition, if the length of a feature sequence Greater than the segment length calculated according to the importance level Further semantic compression is required at the higher level before channel coding.

[0087] Optionally, in the method, the DCI signaling includes the number of the plurality of characteristic sequences, the MCS level of each of the plurality of characteristic sequences, and the sorting index of the plurality of characteristic sequences;

[0088] Among them, in the DCI signaling, the MCS level of the characteristic sequence and the number of bits occupied by the sorting indexes of multiple characteristic sequences are related to the number of the characteristic sequences.

[0089] In this embodiment, for the feature vector l, its importance level is w l , the corresponding encoding rate is Based on the MCS (Modulation and Coding Scheme) table in the existing NR protocol, 5 bits can be used to represent the MCS level of each feature sequence. Taking L feature sequences as an example, (5L) bits of information are required accordingly. The sorting information of the feature sequence can be represented by the index of the quantized sorting result. Taking L feature sequences as an example, log2(L!) bits of indication are required accordingly.

[0090] Based on the above analysis, it is necessary to make certain extensions to the DCI (Downlink Control Information) signaling of the existing NR protocol, and add information in fields such as "number of feature sequences", "feature sequence MCS index" and "feature sequence sorting index" for indicating semantic segmentation information.

[0091] like Figure 6 As shown, optionally, in the method, wherein, in the case where the first signaling includes MAC CE signaling, the MAC CE signaling includes a starting sub-sub protocol data unit PDU and a sub PDU;

[0092] The subheader in the starting sub PDU includes the index of the transport block and the number of the multiple characteristic sequences of the transport block, and the number of bits occupied by the index of the transport block is related to the number of the transport blocks, and the number of bits occupied by the number of the characteristic sequences is related to the number of the multiple characteristic sequences; the segment Segment MAC CE in the starting sub PDU includes the sorting index of the multiple characteristic sequences, and the number of bits occupied by the sorting index is related to the number of the multiple characteristic sequences;

[0093] The subheader in the sub PDU includes MCS indexes of multiple feature sequences and segment lengths of multiple feature sequences, and the number of bits occupied by the segment lengths is related to the segment lengths; the MAC feature vector data unit FDU in the sub PDU includes contents of multiple feature sequences, and the number of bits occupied by the contents of multiple feature sequences is related to the segment lengths of multiple feature sequences.

[0094] In this embodiment, if the number of transmitted characteristic sequences L is large, the requirement for DCI overhead will be further increased. Therefore, high-level signaling such as MAC (Multimedia Access Control) CE (Control Element) signaling can be used for notification according to the transmission needs of actual services. Figure 6 A semantically segmented MAC PDU structure is designed in combination with the MAC PDU (Protocol Data Unit) frame format in the NR protocol. It consists of a starting sub PDU containing a Segment MAC CE and a sub PDU of L feature data units (Feature Data Unit, FDU), which are specifically defined as follows:

[0095] The starting sub PDU is composed of an R / F / LCID / L subheader and a Segment MAC CE, wherein the subheader: R is defaulted; F is set to 1 by default, indicating that the length of the L field is 16 bits; LCID is one of the "35-46" default fields of LCID in the existing protocol as an identifier, indicating the relevant information of the current transmission for code block segmentation according to semantic importance; the first 8 bits of the L field are used to indicate the current transmission block index (Transmit block ID, TBID), and the last 8 bits are used to indicate the number of characteristic sequences of the transmission block, that is, the number of characteristic sequences in the semantic block L. If the current system has N transmission blocks and each transmission block has L characteristic sequences, the TBID consists of log2 N bits, and the number of characteristic sequences consists of log2 N bits. Segment MAC CE is used to indicate the characteristic sequence sorting index, which is convenient for recovering the transmission block according to the code block segmentation order, and consists of log2 (L!) bits, corresponding to the importance sorting index of the L characteristic sequences.

[0096] The sub PDU is composed of an R / F / LCID / L subheader and a MAC FDU, wherein in the subheader, R is defaulted; field F is set to 1 by default, indicating that the length of field L is 16 bits; LCID is one of the "35-46" default fields of LCID in the existing protocol as an identifier, indicating the relevant information of the current transmission feature sequence; the first 5 bits of field L are used to indicate the feature sequence MCS index, and the last 11 bits are used to indicate the segment length of the feature sequence, which will specifically occupy log2(k l ) bits. MAC FDU is used to carry the content of the characteristic sequence, and its corresponding length is k l bits.

[0097] Optionally, in the method, when the first signaling includes RRC signaling, the RRC signaling includes the number of the plurality of characteristic sequences, the MCS index of the characteristic sequence and the sorting index of the characteristic sequence;

[0098] Among them, in the RRC signaling, the number of the characteristic sequences and the number of bits occupied by the sorting index of the characteristic sequences are related to the number of the characteristic sequences.

[0099] In this embodiment, more field information can be transmitted by using RRC signaling, but the timeliness of notification is lower than that of DCI signaling and MAC CE signaling. Specifically, the fields that need to be notified by RRC signaling include:

[0100] The number of characteristic sequences is used to notify the number of characteristic sequences in the transmission block. If there are L characteristic sequences in the transmission block, logL bits are required to notify this field accordingly.

[0101] The feature sequence MCS index is used to notify the MCS level used by the code block corresponding to the feature sequence. For different coding and modulation methods, the existing NR protocol can use 5 bits to correspond to the MCS level index.

[0102] The feature sequence sorting index is used to notify the index of the importance sorting of L feature sequences, and log2(L!) bits are required for notification accordingly.

[0103] It should be noted that the embodiments of the present invention are aimed at the need for differentiated transmission of different semantic features in the same transmission block due to their importance in semantic communication. According to the importance of the semantic features, the transmission block is segmented into sequences of different lengths for encoding, and different code block MCS levels are determined, so that differentiated transmission at the code block level can be achieved, which is conducive to improving the transmission efficiency of future semantic communication systems and reducing resource overhead.

[0104] In order to achieve the above object, the present invention provides a code block segmentation method, wherein the method is applied to a receiving end and comprises:

[0105] Receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple characteristic sequences, among which at least two of the multiple characteristic sequences have different lengths, and the encoding code rates of the multiple characteristic sequences are determined according to the importance levels of the multiple characteristic sequences.

[0106] In this embodiment, the receiving end receives the coded data of the transmission block sent by the transmitting end, and converts each code block into a transmission block by decoding to obtain the content of the service transmission.

[0107] Optionally, the method further comprises:

[0108] Receive a first signaling sent by the transmitting end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0109] In this embodiment, the receiving end decodes the encoded data, and requires the segment lengths, importance levels, encoding rates, sorting information, and number of characteristic sequences of multiple characteristic sequences in the first signaling, which are sent from the sending end to the receiving end via the first signaling, so as to decode each code block, restore each characteristic sequence, and then merge them to obtain the content of the service transmission.

[0110] Optionally, in the method, the first signaling includes one or more of the following signaling:

[0111] DCI signaling;

[0112] MAC CE signaling;

[0113] RRC signaling.

[0114] In this embodiment, the first signaling includes but is not limited to three methods: DCI signaling, MAC CE signaling and RRC signaling.

[0115] It should be noted that in the embodiment of the present invention, the transmitting end encodes the transmission block according to the feature sequences divided by different semantic features and obtains the coded data by performing encoding at different code rates, as well as the signaling including the segment length, importance level, coding rate, sorting information and other information of the feature sequence to the receiving end. The receiving end decodes the coded data according to the information of the feature sequence in the signaling to obtain the transmission block, thereby effectively supporting the differentiated coding of semantic features, which is conducive to improving the transmission efficiency of future semantic communication systems and reducing resource overhead.

[0116] like Figure 7 As shown, in order to achieve the above-mentioned purpose, the present invention provides a code block segmentation device, wherein, applied to a transmitting end, the device comprises:

[0117] A first acquisition module is used to semantically segment the transmission block to be sent to obtain multiple characteristic sequences; wherein, among the multiple characteristic sequences, at least two of the characteristic sequences have different lengths;

[0118] A first determination module, configured to determine the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences;

[0119] A second acquisition module, configured to encode each of the characteristic sequences according to the encoding code rates respectively corresponding to the plurality of characteristic sequences, to obtain the encoded data of the transmission block;

[0120] The first sending module is used to send the encoded data to a receiving end.

[0121] Optionally, the device further comprises:

[0122] The second sending module is used to send a first signaling to the receiving end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0123] Optionally, in the device, the first signaling includes one or more of the following signaling:

[0124] Downlink control information DCI signaling;

[0125] Media Access Control MAC Control Element CE signaling;

[0126] Radio Resource Control (RRC) signaling.

[0127] Optionally, in the device, when the first signaling includes DCI signaling, the DCI signaling includes a plurality of indicator bits, each indicator bit corresponds to indicating a segment length of at least one characteristic sequence, and the number of bits N of the indicator bits is related to the number of bits of the ranking of the importance level of the segment length of the corresponding characteristic sequence indicated;

[0128] Among them, according to the order of importance level from high to low, the segment lengths of the multiple feature sequences are arranged from small to large.

[0129] Optionally, in the device, the ratios of the segment lengths of the plurality of characteristic sequences are arranged according to the following first rule: 0 :2 1 :…:2 L-1 ; Wherein, L is the number of the plurality of characteristic sequences.

[0130] Optionally, the device further comprises:

[0131] The first processing module is used to make the segment length of the encoded feature sequence conform to the first rule by padding with zeros when encoding each feature sequence if the length of the feature sequence obtained by semantic segmentation is less than the segment length of the corresponding feature sequence determined according to the first rule.

[0132] Optionally, the device, wherein the DCI signaling includes the number of the plurality of characteristic sequences, the MCS level of each of the plurality of characteristic sequences, and the sorting index of the plurality of characteristic sequences;

[0133] Among them, in the DCI signaling, the MCS level of the characteristic sequence and the number of bits occupied by the sorting indexes of multiple characteristic sequences are related to the number of the characteristic sequences.

[0134] Optionally, in the device, when the first signaling includes MAC CE signaling, the MAC CE signaling includes a start sub-sub protocol data unit PDU and a sub PDU;

[0135] The subheader in the starting sub PDU includes the index of the transport block and the number of the multiple characteristic sequences of the transport block, and the number of bits occupied by the index of the transport block is related to the number of the transport blocks, and the number of bits occupied by the number of the characteristic sequences is related to the number of the multiple characteristic sequences; the segment Segment MAC CE in the starting sub PDU includes the sorting index of the multiple characteristic sequences, and the number of bits occupied by the sorting index is related to the number of the multiple characteristic sequences;

[0136] The subheader in the sub PDU includes MCS indexes of multiple feature sequences and segment lengths of multiple feature sequences, and the number of bits occupied by the segment lengths is related to the segment lengths; the MAC feature vector data unit FDU in the sub PDU includes contents of multiple feature sequences, and the number of bits occupied by the contents of multiple feature sequences is related to the segment lengths of multiple feature sequences.

[0137] Optionally, the device, wherein, when the first signaling includes RRC signaling, the RRC signaling includes the number of the plurality of characteristic sequences, the MCS index of the characteristic sequence and the sorting index of the characteristic sequence;

[0138] Among them, in the RRC signaling, the number of the characteristic sequences and the number of bits occupied by the sorting index of the characteristic sequences are related to the number of the characteristic sequences.

[0139] In order to achieve the above object, the present invention provides a code block segmentation device, wherein the device is applied to a receiving end and comprises:

[0140] The first receiving unit is used to receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple feature sequences, among which at least two feature sequences have different lengths, and the encoding code rates of the multiple feature sequences are determined according to the importance levels of the multiple feature sequences.

[0141] Optionally, the device further comprises:

[0142] The second receiving unit is used to receive the first signaling sent by the sending end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0143] Optionally, in the device, the first signaling includes one or more of the following signaling:

[0144] DCI signaling;

[0145] MAC CE signaling;

[0146] RRC signaling.

[0147] It should be noted that the above-mentioned device provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here. Figure 8As shown, an embodiment of the present invention further provides a code block segmentation device, including a processor 800, a transceiver 810, a memory 820, and a program stored in the memory 820 and executable on the processor 800; wherein the transceiver 810 is connected to the processor 800 and the memory 820 through a bus interface, wherein the processor 800 is used to read the program in the memory and execute the following process:

[0148] Semantically segmenting the transmission block to be sent to obtain a plurality of characteristic sequences; wherein at least two of the plurality of characteristic sequences have different lengths;

[0149] Determining the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences;

[0150] According to the encoding code rates respectively corresponding to the plurality of characteristic sequences, encoding each of the characteristic sequences to obtain the encoded data of the transmission block;

[0151] The encoded data is sent to a receiving end.

[0152] The transceiver 810 is configured to receive and send data under the control of the processor 800 .

[0153] Among them, Figure 8 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 810 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including transmission media such as wireless channels, wired channels, optical cables, and the like.

[0154] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.

[0155] Optionally, the processor 800 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0156] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0157] Optionally, the hardware configurations of the N AI computing nodes are the same, and an AI training model is placed on each AI computing node, where the AI ​​training model is used to train test tasks corresponding to the target business.

[0158] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0159] A first signaling is sent to the receiving end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0160] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0161] The first signaling includes one or more of the following signaling:

[0162] Downlink control information DCI signaling;

[0163] Media Access Control MAC Control Element CE signaling;

[0164] Radio Resource Control (RRC) signaling.

[0165] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0166] In the case where the first signaling includes DCI signaling, the DCI signaling includes a plurality of indicator bits, each indicator bit corresponds to indicating a segment length of at least one characteristic sequence, and the number of bits N of the indicator bits is related to the number of bits of the importance level of the segment length of the corresponding indicated characteristic sequence;

[0167] Among them, according to the order of importance level from high to low, the segment lengths of the multiple feature sequences are arranged from small to large.

[0168] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0169] The ratios of the segment lengths of the plurality of characteristic sequences are arranged according to the following first rule: 0 :2 1 :…:2 L-1 ; Wherein, L is the number of the plurality of characteristic sequences.

[0170] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0171] If the length of the feature sequence obtained by semantic segmentation is less than the segment length of the corresponding feature sequence determined according to the first rule, when encoding each feature sequence, the segment length of the encoded feature sequence is made to comply with the first rule by padding with zeros.

[0172] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0173] The DCI signaling includes the number of the plurality of characteristic sequences, the MCS level of each of the plurality of characteristic sequences, and the sorting index of the plurality of characteristic sequences;

[0174] Among them, in the DCI signaling, the MCS level of the characteristic sequence and the number of bits occupied by the sorting indexes of multiple characteristic sequences are related to the number of the characteristic sequences.

[0175] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0176] In the case where the first signaling includes MAC CE signaling, the MAC CE signaling includes a start sub-sub protocol data unit PDU and a sub PDU;

[0177] The subheader in the starting sub PDU includes the index of the transport block and the number of the multiple characteristic sequences of the transport block, and the number of bits occupied by the index of the transport block is related to the number of the transport blocks, and the number of bits occupied by the number of the characteristic sequences is related to the number of the multiple characteristic sequences; the segment Segment MAC CE in the starting sub PDU includes the sorting index of the multiple characteristic sequences, and the number of bits occupied by the sorting index is related to the number of the multiple characteristic sequences;

[0178] The subheader in the sub PDU includes MCS indexes of multiple feature sequences and segment lengths of multiple feature sequences, and the number of bits occupied by the segment lengths is related to the segment lengths; the MAC feature vector data unit FDU in the sub PDU includes contents of multiple feature sequences, and the number of bits occupied by the contents of multiple feature sequences is related to the segment lengths of multiple feature sequences.

[0179] Furthermore, when the processor 800 executes the program, the following steps are implemented:

[0180] In the case where the first signaling includes RRC signaling, the RRC signaling includes the number of the plurality of characteristic sequences, the MCS index of the characteristic sequence and the sorting index of the characteristic sequence;

[0181] Among them, in the RRC signaling, the number of the characteristic sequences and the number of bits occupied by the sorting index of the characteristic sequences are related to the number of the characteristic sequences.

[0182] In order to achieve the above object, the present invention provides a network device, which is applied to a sending end and includes a processor, wherein the processor is used to:

[0183] Semantically segmenting the transmission block to be sent to obtain a plurality of characteristic sequences; wherein at least two of the plurality of characteristic sequences have different lengths;

[0184] Determining the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences;

[0185] According to the encoding code rates respectively corresponding to the plurality of characteristic sequences, encoding each of the characteristic sequences to obtain the encoded data of the transmission block;

[0186] The encoded data is sent to a receiving end.

[0187] Optionally, the processor is configured to:

[0188] A first signaling is sent to the receiving end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0189] Optionally, the processor is configured to:

[0190] The first signaling includes one or more of the following signaling:

[0191] Downlink control information DCI signaling;

[0192] Media access control MAC control element CE signaling;

[0193] Radio Resource Control (RRC) signaling.

[0194] Optionally, the processor is configured to:

[0195] In the case where the first signaling includes DCI signaling, the DCI signaling includes a plurality of indicator bits, each indicator bit corresponds to indicating a segment length of at least one characteristic sequence, and the number of bits N of the indicator bits is related to the number of bits of the importance level of the segment length of the corresponding indicated characteristic sequence;

[0196] Among them, according to the order of importance level from high to low, the segment lengths of the multiple feature sequences are arranged from small to large.

[0197] Optionally, the processor is configured to:

[0198] The ratios of the segment lengths of the plurality of characteristic sequences are arranged according to the following first rule: 0 :2 1 :…:2 L-1 ; Wherein, L is the number of the plurality of characteristic sequences.

[0199] Optionally, the processor is configured to:

[0200] If the length of the feature sequence obtained by semantic segmentation is less than the segment length of the corresponding feature sequence determined according to the first rule, when encoding each feature sequence, the segment length of the encoded feature sequence is made to comply with the first rule by padding with zeros.

[0201] Optionally, the processor is configured to:

[0202] The DCI signaling includes the number of the plurality of characteristic sequences, the MCS level of each of the plurality of characteristic sequences, and the sorting index of the plurality of characteristic sequences;

[0203] Among them, in the DCI signaling, the MCS level of the characteristic sequence and the number of bits occupied by the sorting indexes of multiple characteristic sequences are related to the number of the characteristic sequences.

[0204] Optionally, the processor is configured to:

[0205] In the case where the first signaling includes MAC CE signaling, the MAC CE signaling includes a start sub-sub protocol data unit PDU and a sub PDU;

[0206] The subheader in the starting sub PDU includes the index of the transport block and the number of the multiple characteristic sequences of the transport block, and the number of bits occupied by the index of the transport block is related to the number of the transport blocks, and the number of bits occupied by the number of the characteristic sequences is related to the number of the multiple characteristic sequences; the segment Segment MAC CE in the starting sub PDU includes the sorting index of the multiple characteristic sequences, and the number of bits occupied by the sorting index is related to the number of the multiple characteristic sequences;

[0207] The subheader in the sub PDU includes MCS indexes of multiple feature sequences and segment lengths of multiple feature sequences, and the number of bits occupied by the segment lengths is related to the segment lengths; the MAC feature vector data unit FDU in the sub PDU includes contents of multiple feature sequences, and the number of bits occupied by the contents of multiple feature sequences is related to the segment lengths of multiple feature sequences.

[0208] Optionally, the processor is configured to:

[0209] In the case where the first signaling includes RRC signaling, the RRC signaling includes the number of the plurality of characteristic sequences, the MCS index of the characteristic sequence and the sorting index of the characteristic sequence;

[0210] Among them, in the RRC signaling, the number of the characteristic sequences and the number of bits occupied by the sorting index of the characteristic sequences are related to the number of the characteristic sequences.

[0211] In order to achieve the above object, the present invention provides a network device, which is applied to a receiving end and includes a processor, wherein the processor is used to:

[0212] Receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple characteristic sequences, among which at least two of the multiple characteristic sequences have different lengths, and the encoding code rates of the multiple characteristic sequences are determined according to the importance levels of the multiple characteristic sequences.

[0213] Optionally, the processor is configured to:

[0214] Receive a first signaling sent by the transmitting end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

[0215] Optionally, the processor is configured to:

[0216] The first signaling includes one or more of the following signaling:

[0217] DCI signaling;

[0218] MAC CE signaling;

[0219] RRC signaling.

[0220] In order to achieve the above-mentioned purpose, the present invention provides a network device, including: a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; wherein, when the processor executes the program or instruction, it implements the code block segmentation method applied to the transmitting end as described above, or implements the code block segmentation method applied to the receiving end as described above.

[0221] In order to achieve the above-mentioned purpose, the present invention provides a computer-readable storage medium on which a program or instruction is stored, wherein the program or instruction, when executed by a processor, implements the steps of the code block segmentation method applied to the transmitting end as described above, or implements the various processes in the embodiment of the code block segmentation method applied to the receiving end as described above, and can achieve the same technical effect, so it will not be repeated here to avoid repetition. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0222] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0223] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0224] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A code block segmentation method, characterized in that: Applied to the sending end, the method includes: Semantically segmenting the transmission block to be sent to obtain a plurality of characteristic sequences; wherein at least two of the plurality of characteristic sequences have different lengths; Determining the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences; According to the encoding code rates respectively corresponding to the plurality of characteristic sequences, encoding each of the characteristic sequences to obtain the encoded data of the transmission block; The encoded data is sent to a receiving end.

2. The method according to claim 1, characterized in that The method further comprises: A first signaling is sent to the receiving end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding rates, sorting information, and the number of the characteristic sequences.

3. The method according to claim 2, characterized in that The first signaling includes one or more of the following signaling: Downlink control information DCI signaling; Media access control MAC control element CE signaling; Radio Resource Control (RRC) signaling.

4. The method according to claim 3, characterized in that In the case where the first signaling includes DCI signaling, the DCI signaling includes a plurality of indicator bits, each indicator bit corresponds to indicating a segment length of at least one characteristic sequence, and the number of bits N of the indicator bits is related to the number of bits of the importance level of the segment length of the corresponding indicated characteristic sequence; Among them, according to the order of importance level from high to low, the segment lengths of the multiple feature sequences are arranged from small to large.

5. The method according to claim 4, characterized in that The ratios of the segment lengths of the plurality of characteristic sequences are arranged according to the following first rule: 0 :2 1 :…:2 L-1 ; Wherein, L is the number of the plurality of characteristic sequences.

6. The method according to claim 5, characterized in that The method further comprises: If the length of the feature sequence obtained by semantic segmentation is less than the segment length of the corresponding feature sequence determined according to the first rule, when encoding each feature sequence, the segment length of the encoded feature sequence is made to comply with the first rule by padding with zeros.

7. The method according to claim 3, characterized in that The DCI signaling includes the number of the plurality of characteristic sequences, the MCS level of each of the plurality of characteristic sequences, and the sorting index of the plurality of characteristic sequences; Among them, in the DCI signaling, the MCS level of the characteristic sequence and the number of bits occupied by the sorting indexes of multiple characteristic sequences are related to the number of the characteristic sequences.

8. The method according to claim 3, characterized in that In the case where the first signaling includes MAC CE signaling, the MAC CE signaling includes a start sub-sub protocol data unit PDU and a sub PDU; The subheader in the starting sub PDU includes the index of the transport block and the number of the multiple characteristic sequences of the transport block, and the number of bits occupied by the index of the transport block is related to the number of the transport blocks, and the number of bits occupied by the number of the characteristic sequences is related to the number of the multiple characteristic sequences; the segment SegmentMAC CE in the starting sub PDU includes the sorting index of the multiple characteristic sequences, and the number of bits occupied by the sorting index is related to the number of the multiple characteristic sequences; The subheader in the sub PDU includes MCS indexes of multiple feature sequences and segment lengths of multiple feature sequences, and the number of bits occupied by the segment lengths is related to the segment lengths; the MAC feature vector data unit FDU in the sub PDU includes contents of multiple feature sequences, and the number of bits occupied by the contents of multiple feature sequences is related to the segment lengths of multiple feature sequences.

9. The method according to claim 3, characterized in that: In the case where the first signaling includes RRC signaling, the RRC signaling includes the number of the plurality of characteristic sequences, the MCS index of the characteristic sequence and the sorting index of the characteristic sequence; Among them, in the RRC signaling, the number of the characteristic sequences and the number of bits occupied by the sorting index of the characteristic sequences are related to the number of the characteristic sequences.

10. A code block segmentation method, characterized in that: Applied to the receiving end, the method includes: Receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple characteristic sequences, among which at least two of the multiple characteristic sequences have different lengths, and the encoding code rates of the multiple characteristic sequences are determined according to the importance levels of the multiple characteristic sequences.

11. The method according to claim 10, characterized in that The method further comprises: Receive a first signaling sent by the transmitting end, wherein the first signaling includes one or more of the segment lengths, importance levels, encoding bit rates, sorting information, and the number of the characteristic sequences.

12. The method according to claim 11, characterized in that The first signaling includes one or more of the following signaling: DCI signaling; MAC CE signaling; RRC signaling.

13. A code block segmentation device, characterized in that: Applied to a transmitting end, the device comprises: A first acquisition module is used to semantically segment the transmission block to be sent to obtain multiple characteristic sequences; wherein, among the multiple characteristic sequences, at least two of the characteristic sequences have different lengths; A first determination module, configured to determine the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences; A second acquisition module, configured to encode each of the characteristic sequences according to the encoding code rates respectively corresponding to the plurality of characteristic sequences, to obtain the encoded data of the transmission block; The first sending module is used to send the encoded data to a receiving end.

14. A code block segmentation device, characterized in that: Applied to a receiving end, the device comprises: The first receiving unit is used to receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple feature sequences, among which at least two feature sequences have different lengths, and the encoding code rates of the multiple feature sequences are determined according to the importance levels of the multiple feature sequences.

15. A network device, characterized in that: The device is applied to a transmitting end, comprising a processor, wherein the processor is used for: Semantically segmenting the transmission block to be sent to obtain a plurality of characteristic sequences; wherein at least two of the plurality of characteristic sequences have different lengths; Determining the encoding rate of each of the feature sequences according to the importance levels of the plurality of feature sequences; According to the encoding code rates respectively corresponding to the plurality of characteristic sequences, encoding each of the characteristic sequences to obtain the encoded data of the transmission block; The encoded data is sent to a receiving end.

16. A network device, characterized in that: The device is applied to a receiving end, comprising a processor, wherein the processor is used for: Receive the encoded data of the transmission block sent by the transmitting end; wherein the encoded data includes multiple characteristic sequences, among which at least two of the multiple characteristic sequences have different lengths, and the encoding code rates of the multiple characteristic sequences are determined according to the importance levels of the multiple characteristic sequences.

17. A network device comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; characterized in that when the processor executes the program or instruction, it implements the code block segmentation method applied to the transmitting end as described in any one of claims 1 to 9, or implements the code block segmentation method applied to the receiving end as described in any one of claims 10 to 12.

18. A readable storage medium having a program or instruction stored thereon, characterized in that: When the program or instruction is executed by the processor, the steps of the code block segmentation method applied to the transmitting end as described in any one of claims 1-9 are implemented, or the steps of the code block segmentation method applied to the receiving end as described in any one of claims 10-12 are implemented.

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