Information source coding methods and apparatuses, communication devices and readable storage medium

Abstract

The present application belongs to the technical field of wireless communications. Disclosed are information source coding methods and apparatuses, communication devices and a readable storage medium. An information source coding method of the embodiments of the present application comprises: a first communication device receives a first message, the first message comprising a first trigger condition for performing information source coding on data to be transmitted; and, on the basis that whether the first trigger condition is met, the first communication device determines whether to perform information source coding on said data.

Description

Source coding method, device, communication equipment and readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 5, 2023, with application number 202311657295.5 and invention name “Source Coding Method, Device, Communication Equipment and Readable Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of wireless communication technology, and specifically relates to a source coding method, apparatus, communication equipment, and readable storage medium. Background Art

[0004] Data is one of the core elements of mobile networks. User equipment (UE), radio access networks, and core networks can generate massive amounts of data. In addition to user-plane data, this data also includes a large amount of internal mobile network data. For example, terminals or base station equipment in the 6th Generation Mobile Communication Technology (6G) system can measure received signals while transmitting radio waves for communication, thereby wirelessly sensing the radio wave propagation environment and the target objects within it, obtaining perception data such as the target object's position, speed, direction, material, and imaging, thereby supporting a rich range of perception applications and scenarios. At the same time, with the research on artificial intelligence (AI) use cases in 5th Generation Mobile Communication Technology (5G) networks (such as AI models for channel state information (CSI) feedback, beam management and positioning, and user behavior prediction), AI model training requires a large amount of internal mobile network data. AI models ranging from tens of kilobytes to hundreds of megabytes also need to be transmitted between UEs, radio access networks, and core networks. As a ubiquitously connected system, 6G will generate a large amount of valuable basic data and information in the process of supporting the connection between the physical and digital worlds. Compared to 5G, which only provides limited data services such as UE positioning and network information disclosure, 6G will provide wireless sensing and positioning, enhancing network information disclosure. Furthermore, 6G can also collect industry-wide public information such as various sensor information and Geographic Information System (GIS) information, empowering a wide range of industries and avoiding the duplication of such data across various industry applications.

[0005] Therefore, as the internal data of the mobile network generated by the network functions of the aforementioned UE, radio access network and core network increases, the transmission resource overhead of the various functions for collecting and consuming data from each other also increases.

[0006] In order to solve the shortage of storage resources and transmission resources, it is necessary to consider source coding methods that support data transmission within mobile networks, thereby saving storage resources and transmission resources. Summary of the Invention

[0007] The embodiments of the present application provide a source coding method, apparatus, communication device, and readable storage medium, which can solve the problem of how to support a source coding method for data transmitted within a mobile network.

[0008] In a first aspect, a source coding method is provided, comprising:

[0009] The first communication device receives a first message, wherein the first message includes: a first triggering condition for performing source coding on data to be transmitted;

[0010] The first communication device determines whether to perform source coding on the data to be transmitted according to whether the first trigger condition is met.

[0011] In a second aspect, a source coding method is provided, comprising:

[0012] The second communication device sends a first message, where the first message includes: a first triggering condition for performing source coding on the data to be transmitted.

[0013] According to a third aspect, a source coding apparatus is provided, comprising:

[0014] A first receiving module is configured to receive a first message, wherein the first message includes: a first triggering condition for performing source coding on data to be transmitted;

[0015] The first determining module is configured to determine whether to perform source coding on the data to be transmitted according to whether the first trigger condition is met.

[0016] In a fourth aspect, a source coding device is provided.

[0017] The first sending module is configured to send a first message, where the first message includes a first triggering condition for performing source coding on data to be transmitted.

[0018] In a fifth aspect, a communication device is provided, which terminal includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0019] In the sixth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first message, the first message comprising: a first trigger condition for performing source encoding on the data to be transmitted; and the processor is used to determine whether to perform source encoding on the data to be transmitted based on whether the first trigger condition is met.

[0020] In a seventh aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first message, the first message comprising: a first trigger condition for performing source encoding on data to be transmitted.

[0021] In an eighth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0022] In a ninth aspect, a wireless communication system is provided, comprising: a first communication device and a second communication device, wherein the first communication device can be used to execute the steps of the method described in the first aspect, and the second communication device can be used to execute the steps of the method described in the second aspect.

[0023] In the tenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0024] In the eleventh aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0025] In an embodiment of the present application, a first message indicates a first trigger condition for performing source coding on the data to be transmitted, and the first communication device determines whether to perform source coding on the data to be transmitted based on whether the first trigger condition is met, thereby supporting source coding of data transmitted within the mobile network, thereby achieving the effect of saving storage resources and transmission resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a block diagram of a wireless communication system applicable to embodiments of the present application;

[0027] FIG2 is a schematic diagram of a data plane protocol architecture terminated in a wireless access network;

[0028] Figure 3 is a schematic diagram of the data plane protocol architecture of the UE, radio access network, and core network;

[0029] FIG4 is a flow chart of a source coding method according to an embodiment of the present application;

[0030] FIG5 is a second flow chart of the source coding method according to an embodiment of the present application;

[0031] FIG6 is a schematic diagram of a structure of a source coding device according to an embodiment of the present application;

[0032] FIG7 is a second structural diagram of the source coding device according to an embodiment of the present application;

[0033] FIG8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0034] FIG9 is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application;

[0035] FIG10 is a schematic diagram of a hardware structure of a network-side device according to an embodiment of the present application;

[0036] FIG11 is a second schematic diagram of the hardware structure of the network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0038] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0039] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0040] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0041] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (homeevolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0042] The core network device may include the core network device may include but is not limited to at least one of the following: core network equipment, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data storage (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (Binding Support Function, BSF), application function (AF), location management function (LMF), gateway mobile location center (GMLC), network data analysis function (NWDAF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is taken as an example to introduce, and the specific type of the core network device is not limited.

[0043] The technical contents involved in this application are described below.

[0044] (1) Robust Header Compression (ROHC)

[0045] ROHC is an algorithm for compressing the headers of various Internet Protocol (IP) packets. In IPv4, the uncompressed IP header is 40 bytes, while in IPv6, it is 60 bytes. This isn't a significant issue for standard packet applications (such as file transfers or browsing), as the size of the transmitted data is very large compared to the size of the header. Therefore, the IP header overhead isn't a significant concern. However, in certain applications (such as Voice over Internet Protocol (VoIP), text messaging, and gaming), the amount of data transmitted is often small and transactions are frequent. In these cases, the IP header overhead can become significant. In such cases, any method to reduce the size of the IP header would be extremely beneficial, and ROHC is one such method defined in RFC 3095. The ideal compression ratio for ROHC is to reduce the header size (originally 40 or 60 bytes) to just 1 or 2 bytes.

[0046] The ROHC functional entity resides within the user-plane Packet Data Convergence Protocol (PDCP) entities of the UE and eNodeB / gNB and is solely responsible for header compression and decompression of user-plane data packets. In other words, ROHC primarily compresses the headers of user data packets carried by the mobile network from outside the network.

[0047] (2) Uplink Data Compression (UDC)

[0048] The UDC protocol is based on IETF RFC 1951 (DEFLATE Compressed Data Format Specification). The DEFLATE compression strategy uses the static Huffman coding tree defined in IETF RFC 1951. UDC data blocks must be byte aligned. Z_SYNC_FLUSH is used as the DEFLATE byte alignment, and the last four fixed bytes (0x00 0x00 0xFF 0xFF) are deleted before transmission.

[0049] PDCP entities associated with Data Radio Bearers (DRBs) may be configured by upper layers to use UDC. If UDC is configured, the UE shall apply UDC compression to PDCP Service Data Units (SDUs) received from upper layers corresponding to the configured DRBs. If a predefined dictionary is configured by upper layers, the UE shall pre-populate the compression buffer with the configured predefined dictionary when UDC is configured. If no predefined dictionary is configured by upper layers, the UE shall set the compression buffer to all zeros.

[0050] As can be seen, the UDC functional entity resides within the user-plane PDCP entities of the UE and eNodeB / gNB and is solely responsible for compressing and decompressing user-plane data packets. In other words, UDC primarily compresses user data packets carried by the mobile network from outside the network. Furthermore, each PDCP entity carrying user-plane data uses either UDC or ROHC, but not both simultaneously.

[0051] (3) Data Plane

[0052] In current discussions about 6G network architecture, many industry companies have proposed the data plane. The data plane comprises core network data plane functions, radio access network data plane functions, and UE data plane functions, providing end-to-end connectivity. The data plane is responsible for data control, including data collection coordination, data collection configuration, and data transmission configuration. It also handles at least one of the following functions: data acquisition, data transmission, data preprocessing, data privacy and security, data analysis, data storage, and data services.

[0053] Please refer to Figure 2, which is a schematic diagram of the data plane protocol architecture terminated in the wireless access network. Please refer to Figure 3, which is a schematic diagram of the data plane protocol architecture of the UE, wireless access network and core network.

[0054] (4) Source encoding and decoding

[0055] The basic communication model of source coding and decoding is as follows: source -> source encoder -> channel encoder -> channel -> channel decoder -> source decoder -> source decoder -> destination.

[0056] The source is the carrier that sends information. The default output here is binary.

[0057] A source encoder performs lossless encoding (or lossy encoding that meets the requirements) on the source output to reduce the redundancy of the source output information. This can be understood as compression.

[0058] The channel encoder encodes the output of the source encoder so that the resulting sequence can be transmitted well over the channel. Redundancy is generally added to enhance anti-interference capabilities.

[0059] Channel: Information is transmitted in the channel and sent to the receiving end.

[0060] The channel decoder decodes the received sequence and can recover certain transmission errors.

[0061] The source decoder decodes the output of the channel decoder to restore the original information sequence.

[0062] The destination requires a carrier of the original information.

[0063] The source coding method, apparatus, communication device, and readable storage medium provided in the embodiments of the present application are described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0064] Referring to FIG4 , an embodiment of the present application provides a source coding method, including:

[0065] Step 11: The first communication device receives a first message, where the first message includes: a first trigger condition for performing source coding on the data to be transmitted;

[0066] Source coding is a transformation of source symbols for the purpose of improving communication effectiveness, or in other words, a transformation of source symbols to reduce or eliminate source redundancy. It can achieve the effect of reducing the size of source symbols, so source coding can also be called data compression.

[0067] In some embodiments, optionally, the first communication device receives a first message sent by the second communication device.

[0068] Step 12: The first communication device determines whether to perform source coding on the data to be transmitted based on whether the first trigger condition is met.

[0069] Optionally, the first communication device performs source coding on the data to be transmitted when the first trigger condition is met, and does not perform source coding on the data to be transmitted when the first trigger condition is not met.

[0070] In an embodiment of the present application, the first communication device is a data provider, which can also be called a data provision function, and can be a UE, a wireless access network device or a core network device.

[0071] The second communication device may be a data consumer, also referred to as a data consumption function. Alternatively, the second communication device may be a data plane function node, through which data provided by a data provider is provided to the data consumer. The data plane function node may provide the original data provided by the data provider, or may provide processed data. The second communication device may be a UE, a radio access network device, or a core network device.

[0072] In an embodiment of the present application, a first message indicates a first trigger condition for performing source coding on the data to be transmitted, and the first communication device determines whether to perform source coding on the data to be transmitted based on whether the first trigger condition is met, thereby supporting source coding of data transmitted within the mobile network, thereby achieving the effect of saving storage resources and transmission resources.

[0073] In addition, in an embodiment of the present application, a first message indicates a first trigger condition for performing source coding on the data to be transmitted, and the first communication device determines whether to perform source coding on the data to be transmitted based on whether the first trigger condition is met, thereby improving the flexibility of source coding and the efficiency of data transmission.

[0074] The data to be transmitted in the embodiment of the present application may be user plane data or non-user plane data, i.e., mobile network internal data. The mobile network internal data may refer to data that can be parsed by the UE, radio access network, or core network in the 3GPP standard. The mobile network internal data includes at least one of the following:

[0075] 1) Send and receive data that terminates at any two of the terminals, wireless access network equipment, and core network equipment;

[0076] It can also be described as a peer-to-peer protocol for sending and receiving data located in the UE, radio access network, or core network.

[0077] For example, the data of the peer protocol layers of the Long Term Evolution Positioning Protocol (LTE Positioning Protocol, LPP) are respectively located in the location management function (LMF) of the UE and the core network; another example is the data of the peer protocol layers of the Radio Resource Control (RRC) are respectively located in the UE and the radio access network equipment (eNB / gNB, base station); another example is the data of the data plane protocol layers are respectively located in the UE and the radio access network equipment or in the UE and the core network equipment.

[0078] 2) Send or receive data that ends at any one of the terminals, wireless access network equipment, or core network equipment.

[0079] It can also be described as sending or receiving data where one end is located in the UE, radio access network, or core network. For example, an AI model generated by an application server or application function outside the mobile network is sent to the UE, radio access network equipment, or core network equipment, and the corresponding equipment needs to deploy and use the AI ​​model.

[0080] The terminal (UE) involved in the above mobile network content data refers to the protocol functions of user equipment (UE) defined by the 3GPP protocol, and does not include application functions.

[0081] For example, the mobile network internal data may include at least one of the following: perception data, positioning data, AI model, and AI model training data.

[0082] There are many different ways to collect and transmit data within a mobile network. For example, measurements based on measurement configuration information can generate the required data, and the data can be immediately transmitted on the configured resources. Another example is to measure the required data based on configuration information, and determine when to transmit the data based on the UE state (e.g., idle or connected) and network load. Another example is to measure the required data based on configuration information, and determine which data to transmit and how to transmit it based on the performance indicators of the data and the effectiveness of source coding.

[0083] In an embodiment of the present application, optionally, the first trigger condition includes at least one of the following: a first trigger parameter, an identifier of a first trigger event, a trigger threshold corresponding to the first trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the first trigger event.

[0084] The first trigger event identifier is used to identify the trigger event, and may also be referred to as the trigger event type.

[0085] Optionally, the first trigger parameter includes at least one of the following:

[0086] The length of the data before source encoding;

[0087] The length of the data after source encoding;

[0088] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0089] The size of the transmission resources available for the data to be transmitted;

[0090] The size of the storage resources available for the data to be transmitted;

[0091] The time length of the source encoding;

[0092] The length of time it takes to decode the source;

[0093] The sum of the time required for source encoding and source decoding.

[0094] It should be noted that the above-mentioned data length after source coding is not the data length after source coding determined after source coding is actually performed on the data to be transmitted, but the data length calculated before determining whether to perform source coding. For example, if the data length of the data to be transmitted is 10, and the calculated data length after source coding is 2, it means that the effect of source coding is obvious and source coding can be performed.

[0095] In this embodiment of the present application, optionally, the first trigger condition may include at least one of the following:

[0096] The data length before source encoding is greater than or equal to the first trigger threshold value;

[0097] The data length before source encoding minus the reference value is greater than or equal to the second trigger threshold value; the reference value may be agreed upon by the protocol or determined by the second communication device;

[0098] The length of the data after source encoding is less than or equal to the third trigger threshold;

[0099] The data length after source encoding + the reference value is less than or equal to the fourth trigger threshold value; the reference value may be agreed upon by the protocol or determined by the second communication device;

[0100] The compression ratio is greater than or equal to the fifth trigger threshold;

[0101] The compression ratio-reference value is greater than or equal to a sixth trigger threshold value; the reference value may be agreed upon by a protocol or determined by the second communication device;

[0102] The length of the data before source encoding is greater than or equal to the data size that can be transmitted by the transmission resources that can be used for the data to be transmitted;

[0103] The data length before source encoding minus the data size that can be transmitted by the transmission resources that can be used for the data to be transmitted is greater than or equal to the seventh trigger threshold;

[0104] The length of the data before source encoding is greater than or equal to the data size that can be stored in the storage resources that can be used for the data to be transmitted;

[0105] The data length before source encoding minus the data size that can be transmitted by the storage resources available for the data to be transmitted is greater than or equal to the eighth trigger threshold;

[0106] The time length of the source coding is less than or equal to the ninth trigger threshold;

[0107] The time length of the source coding + the reference value is less than or equal to the tenth trigger threshold value; the reference value can be agreed upon by the protocol, or determined by the second communication device.

[0108] It should be noted that, in the above-mentioned different first trigger conditions, the threshold values ​​corresponding to the same trigger parameter may be the same or different. For example, the first trigger threshold value and the second trigger threshold value may be the same or different. In the above-mentioned different first trigger conditions, the threshold values ​​corresponding to different trigger parameters may be the same or different. For example, the first trigger threshold value and the fourth trigger threshold value may be the same or different. In the above-mentioned different first trigger conditions, the reference values ​​corresponding to different trigger parameters may be the same or different.

[0109] In an embodiment of the present application, optionally, the first message also includes: a second trigger condition for ending source coding of the data to be transmitted; the method also includes: the first communication device determines whether to turn off source coding for the data to be transmitted based on whether the second trigger condition is met.

[0110] Optionally, the second trigger condition includes at least one of the following: a second trigger parameter, an identifier of a second trigger event, a trigger threshold corresponding to the second trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the second trigger event.

[0111] Optionally, the second trigger parameter includes at least one of the following:

[0112] The length of data before source coding; also known as the length of source coding input data;

[0113] The length of the data after source coding; also known as the length of the source coding output data;

[0114] Compression ratio. There are many ways to define potential compression ratios. For example, the compression ratio can be defined as one of the following: the length of data after source coding divided by the length of data before source coding, the length of data before source coding divided by the length of data after source coding, or 1-the length of data after source coding / the length of data before source coding.

[0115] The size of the transmission resources that can be used for the data to be transmitted; for example, the size of the data that can be transmitted by the UE uplink based on the uplink grant (UL grant);

[0116] The size of the storage resources that can be used for the data to be transmitted; the storage resources refer to the storage resources defined by the protocol for the first communication device to store the data to be transmitted, for example, the protocol defines that for logged minimization of drive testing (loggedMDT), the UE uses a maximum of 64K storage resources.

[0117] The time length of source coding; it can also be referred to as the processing time of the first communication device performing source coding on the data;

[0118] The time length of source decoding; it can also be referred to as the processing time of the first communication device performing source decoding on the data;

[0119] The sum of the time required for source encoding and source decoding.

[0120] In the embodiment of the present application, the second trigger parameter in the second trigger condition may be the same as or different from the first trigger parameter in the first trigger condition.

[0121] The following is an example of a triggering event for source coding.

[0122] Please refer to Table 1. The source coding trigger event may include at least one of the following (it should be noted that the names and serial numbers of the trigger times in the table are only examples and may be other):

[0123] Table 1

[0124] In this embodiment of the present application, optionally, the first message further includes at least one of the following:

[0125] The first indication information is used to indicate whether to use lossy source coding or lossless source coding;

[0126] Candidate source coding algorithms or algorithm identifiers; used to indicate which one or several source coding algorithms can be used by the first communication device; the candidate source coding algorithms may include at least one of the following: an algorithm predefined in the protocol, a pre-deployed algorithm.

[0127] Buffer size for source encoding (buffersize);

[0128] The candidate source profile indicates which types and / or characteristics of sources are eligible for source encoding. For example, the source type can be categorized by data usage, such as perception, AI, or external data services. Optionally, the source type can be further subdivided into target application scenarios. For example, perception-type data can be categorized into target detection, target tracking, and environment reconstruction; AI-type data can be categorized into AI models and AI model training data; and external data services can be categorized into high-precision, medium-precision, and low-precision data services.

[0129] Information about candidate geographical areas that can be used for source coding.

[0130] In the existing technical solutions, user-plane data transmitted over mobile networks can reduce the amount of data transmitted and improve transmission efficiency through Robust Header Compression (ROHC) or Uplink Data Compression (UDC). Since the existing solution compresses user-plane data through the Packet Data Convergence Protocol (PDCP) layer of the Radio Access Network (RAN), the compression methods used by ROHC and UDC are both lossless compression, thereby avoiding affecting upper-layer applications. In the embodiment of the present application, since the data to be transmitted for source coding can be internal data of the mobile network (non-user-plane data), the appropriate source coding can be determined based on the specific circumstances such as the application scenario of the data to be transmitted and the requirements for data quality. It is not necessary to be limited to a lossless source coding algorithm, and a lossy source coding algorithm can also be used.

[0131] In this embodiment of the present application, optionally, the candidate geographical area information includes at least one of the following:

[0132] Cell Global Identifier (CGI), including Public Land Mobile Network (PLMN) ID and Cell ID;

[0133] Physical Cell Identity (PCI);

[0134] Carrier frequency information;

[0135] Tracking Area Code (TAC);

[0136] Tracking area identify (TAI), including PLMN ID and TAC;

[0137] A geographic location area; for example, a geographic location area may be identified by a reference point (represented by a geographic coordinate) and a distance threshold, or for example, a geographic location area may be identified by multiple geographic coordinates;

[0138] A radio access network (RAN) area can be identified by a RAN area ID, which includes a TAC and a RAN area code.

[0139] In an embodiment of the present application, optionally, the first message may further include: a data name (or data item) and at least one of a first indicator. The data name is used to indicate the data that needs to be collected and reported by the first communication device, such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), PDCP delay, etc. It can also be represented by defining different numerical values ​​for a certain field, for example, 00000001 for RSRP, 00000010 for RSRQ, etc. The first indicator is used to indicate that only the data that meets the first indicator in the collected data needs to be reported / transmitted. For example, the first indicator can be integrity (generally defined as measured by the degree of data collection, which is the ratio between the data that should be collected and the data actually collected. There are multiple specific calculation formulas), and for example, the integrity is not less than 80%. For example, the measurement value under the condition that the SNR is not lower than the threshold, and for example, the threshold is 0dB. For another example, the first indicator can be set for the perception data by the perception SNR. The "perception SNR" is different from the aforementioned SNR. The perception SNR refers to the signal-to-noise power ratio of the target signal after the perception signal is transformed into at least one of the delay domain, Doppler domain, and angle domain. Similarly, there can also be a "perception SINR", which is the signal-to-interference-to-noise power ratio of the target signal after the first signal is transformed into at least one of the delay domain, Doppler domain, and angle domain.

[0140] In an embodiment of the present application, optionally, the source coding method further includes: the first communication device sends source coding capability information of the first communication device, the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding.

[0141] In an embodiment of the present application, the second indication information may indicate whether the first communication device supports source coding in an explicit manner, or may indicate whether the first communication device supports source coding in an implicit manner.

[0142] Optionally, the first communication device sends source coding capability information of the first communication device to the second communication device, and the source coding capability information of the first communication device is used by the second communication device to determine the first message.

[0143] In this embodiment of the present application, optionally, the source coding capability information further includes at least one of the following:

[0144] The maximum number of entities supported using source coding; for example, the maximum number of radio bearers;

[0145] The third indication information is used to indicate support for at least one of lossy source coding and lossless source coding;

[0146] Supported source coding algorithms or algorithm identifiers. The supported source coding algorithms may include at least one of the following: a standard source coding algorithm (also called a dictionary), an operator-defined source coding algorithm (also called a dictionary). When the supported source coding algorithms include operator-defined source coding algorithms, the source coding capability information may also include the algorithm version and operator PLMN.

[0147] The standard source coding algorithm may include at least one of a lossy source coding algorithm and a lossless source coding algorithm.

[0148] The following example illustrates the lossless source coding algorithm:

[0149] 1) DEFLATE: A widely used lossless compression algorithm, commonly used in file formats such as ZIP and GZIP. This source coding algorithm is used in the existing UDC protocol.

[0150] 2) LZ77 / LZ78: A dictionary-based lossless compression algorithm, commonly used in file formats such as LZW and ZIP.

[0151] 3) Brotli: A lossless compression algorithm developed by Google that features high compression ratio and fast decompression and has become one of the standards for web content compression.

[0152] 4) Zstandard: A lossless compression algorithm developed by Facebook, which features high compression ratio and fast decompression and has become one of the standards in multiple application fields.

[0153] 5) LZ4: A lossless compression algorithm developed by Google that features high compression speed and fast decompression. It is commonly used in scenarios such as real-time data transmission and high-speed caching.

[0154] 6) Snappy: A lossless compression algorithm developed by Google that features high compression speed and fast decompression. It is often used in scenarios such as big data processing and real-time data transmission.

[0155] The following example illustrates the lossy source coding algorithm:

[0156] 1) JPEG: A widely used image compression algorithm that can compress images to 1 / 10 to 1 / 100 of their original size. It is commonly used in digital cameras, mobile devices, televisions, and other scenarios.

[0157] 2) MPEG: A widely used video compression algorithm that can compress videos to 1 / 100 to 1 / 1000 of their original size. It is commonly used in digital television, online video, video conferencing, and other scenarios.

[0158] 3) AAC: A widely used audio compression algorithm that can compress audio to 1 / 10 to 1 / 20 of its original size. It is commonly used in digital music, network audio, mobile devices, and other scenarios.

[0159] 4) Opus: An audio compression algorithm developed by Xiph.org that can compress audio to 1 / 10 to 1 / 20 of its original size while maintaining low latency and high quality. It has become one of the standards for WebRTC audio communication.

[0160] In an embodiment of the present application, when the first communication device is a UE, the source coding capability information of the first communication device may be carried in a UE capability report.

[0161] In an embodiment of the present application, optionally, the source coding capability information is defined by a capability parameter of a data plane protocol layer or indicated by a general parameter in a capability parameter of the first communication device.

[0162] Optionally, when the first communication device is a UE, the capability parameter of the first communication device is a UE capability parameter.

[0163] In some other embodiments of the present application, the first communication device may also be defined through a protocol to support source coding, that is, source coding is a mandatory feature. In this case, the first communication device does not need to report source coding capability information.

[0164] In an embodiment of the present application, optionally, the source encoding method further includes: the first communication device sends a second message, the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0165] Optionally, the first communication device sends the second message to a third communication device, and the third communication device may determine whether to perform source decoding on the received data and how to perform source decoding based on the second message. The third communication device may be the second communication device or another communication device different from the second communication device.

[0166] In this embodiment of the present application, optionally, the second message further includes at least one of the following:

[0167] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0168] Source coded data or data that is not source coded. Source coded data can also be called source coded output data.

[0169] The parity bit is used to verify the source coding of the data being transmitted or transmitted. The verification object can be a single source-coded data packet. For example, the source encoder generates parity bits (check bits) by applying a check algorithm (such as parity check) to the data before source coding. After receiving the data packet, the receiver performs source decoding and uses the same check algorithm to generate parity bits for the decoded data. If the parity bits are consistent with those of the received encoder, the source coding and decoding are considered correct; otherwise, the code is considered incorrect.

[0170] The sequence number of the data transmitted;

[0171] The size of the data to be transferred.

[0172] Referring to FIG5 , an embodiment of the present application further provides a source coding method, including:

[0173] Step 21: The second communication device sends a first message, where the first message includes: a first trigger condition for performing source coding on the data to be transmitted.

[0174] In an embodiment of the present application, the second communication device indicates a first trigger condition for performing source encoding on the data to be transmitted through a first message. The receiving end of the first message can determine whether to perform source encoding on the data to be transmitted based on the first trigger condition, thereby improving the flexibility of source encoding and the efficiency of data transmission.

[0175] In an embodiment of the present application, optionally, the first trigger condition includes at least one of the following: a first trigger parameter, an identifier of a first trigger event, a trigger threshold corresponding to the first trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the first trigger event.

[0176] Optionally, the first trigger parameter includes at least one of the following:

[0177] The length of the data before source encoding;

[0178] The length of the data after source encoding;

[0179] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0180] The size of the transmission resources available for the data to be transmitted;

[0181] The size of the storage resources available for the data to be transmitted;

[0182] The time length of the source encoding;

[0183] The length of time it takes to decode the source;

[0184] The sum of the time required for source encoding and source decoding.

[0185] In the embodiment of the present application, optionally, the first message further includes: a second trigger condition for ending source encoding of the data to be transmitted.

[0186] In an embodiment of the present application, optionally, the second trigger condition includes at least one of the following: a second trigger parameter, an identifier of a second trigger event, a trigger threshold corresponding to the second trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the second trigger event.

[0187] In this embodiment of the present application, optionally, the second trigger parameter includes at least one of the following:

[0188] The length of the data before source encoding;

[0189] The length of the data after source encoding;

[0190] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0191] The size of the transmission resources available for the data to be transmitted;

[0192] The size of the storage resources available for the data to be transmitted;

[0193] The time length of the source encoding;

[0194] The length of time it takes to decode the source;

[0195] The sum of the time required for source encoding and source decoding.

[0196] In this embodiment of the present application, optionally, the first message further includes at least one of the following:

[0197] The first indication information is used to indicate whether to use lossy source coding or lossless source coding;

[0198] Candidate source coding algorithm or algorithm identifier;

[0199] The size of the buffer used for source encoding;

[0200] Brief introduction of candidate sources;

[0201] Information about candidate geographical areas that can be used for source coding.

[0202] In this embodiment of the present application, optionally, the candidate geographical area information includes at least one of the following:

[0203] Global Cell Identifier;

[0204] Physical cell identification;

[0205] Carrier frequency information;

[0206] Tracking area code;

[0207] Tracking area identifier;

[0208] Geographical location area;

[0209] Wireless access network area.

[0210] In the embodiment of the present application, optionally, the source coding method further includes:

[0211] The second communication device receives source coding capability information of the first communication device, where the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding;

[0212] The second communication device determines the first message according to the source coding capability information.

[0213] In this embodiment of the present application, optionally, the source coding capability information further includes at least one of the following:

[0214] The maximum number of entities supported using source encoding;

[0215] The third indication information is used to indicate support for at least one of lossy source coding and lossless source coding;

[0216] Supported source coding algorithms or algorithm identifiers.

[0217] In an embodiment of the present application, optionally, the source coding capability information is defined by a capability parameter of a data plane protocol layer or indicated by a general parameter in a capability parameter of the first communication device.

[0218] In an embodiment of the present application, optionally, the source encoding method further includes: the second communication device receives a second message, the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0219] In this embodiment of the present application, optionally, the second message further includes at least one of the following:

[0220] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0221] Source-encoded data or data that is not source-encoded;

[0222] Check bit, used to check the source code of the data to be transmitted or transmitted;

[0223] The sequence number of the data transmitted;

[0224] The size of the data to be transferred.

[0225] The source coding method of the embodiment of the present application is described below with reference to specific embodiments.

[0226] Example 1:

[0227] In this embodiment, the second communication device is a radio access network device, and the first communication device is a UE. This embodiment uses the example of the second communication device being a radio access network device and the first communication device being a UE to illustrate how the data plane protocol stack supports source coding. If source coding is a data plane capability, assuming that the corresponding protocol layer in the data plane protocol stack is referred to as the first sublayer, see Figure 2 for a schematic diagram of the data plane protocol stack for a data plane protocol architecture that terminates in a radio access network.

[0228] The source coding method in the embodiment of the present application includes the following steps:

[0229] First, the UE sends UE capability information to the network side device, where the UE capability information includes the UE's source coding capability information. This step is optional.

[0230] If the first sublayer of the data plane protocol stack is called a data plane application protocol (DPAP), an example of UE capability information may be as follows.

[0231] The source coding capability information of the UE is defined by the capability parameters of the data plane protocol layer. Among them, when SourceCodingsSupported is true, it indicates that the UE supports source coding, and supportedSourceCodingType is used to indicate support for at least one of lossy source coding and lossless source coding. supportedStandard-Profiles indicates a standard source coding algorithm. The standard source coding algorithm may include at least one of a lossy source coding algorithm and a lossless source coding algorithm. For examples of lossy source coding algorithms and lossless source coding algorithms, please refer to the description of the above embodiment and will not be repeated here.

[0232] supportedOperator-Profiles indicates the source coding algorithm defined by the operator. Because the data to be transmitted in the embodiment of the present application may be internal data of the mobile network, the operator can define the source coding algorithm according to the application scenario of the collected and transmitted data. Similar to the above-mentioned lossy source coding that focuses on a certain type of data, the source coding algorithm defined by the operator is expected to further reduce the data transmission volume. Considering that the UE may have multiple cards from different operators, etc., the algorithm version information and the corresponding PLMN identifier must be indicated for the source coding algorithm defined by the operator.

[0233] If the source coding capability information is sent to the network side through the UE capability information, then another potential method is to indicate the source coding capability information through general parameters in the UE capability parameters, as shown in Table 2.

[0234] Table 2

[0235] In some other embodiments of the present application, another approach is to define the UE and network side to support source coding through protocol standards, that is, source coding is a mandatory feature. In this case, the UE does not need to report source coding capability information.

[0236] The trigger-based source coding method is typically used because the second communication device cannot accurately determine the parameters (e.g., data size) of the data to be transmitted by the first communication device. Therefore, the second communication device sends the triggering condition for source coding to the first communication device, and the first communication device determines whether to perform source coding based on the specific situation.

[0237] The following briefly describes the process of the first communication device (UE) and the second communication device (radio access network device) performing source coding-related interaction based on the trigger condition:

[0238] Step 1: A second communication device (radio access network device) sends a first message to a first communication device (UE). The first message includes: a first trigger condition for performing source coding on the data to be transmitted, and may also include a second trigger condition for ending source coding on the data to be transmitted. The first trigger condition and the second trigger condition each include at least one of the following: a trigger parameter, a trigger event identifier, and a trigger threshold corresponding to the trigger parameter or the trigger parameter described by the trigger event.

[0239] An example first message includes one or more items in Table 3 (Table 3 is only an example, and the possible meaning options of each field and the combinations between different fields can be other and are not limited).

[0240] Table 3

[0241] Optionally, the first message may also include: a data name (or data item) and at least one of the first indicators. The data name is used to indicate the data that needs to be collected and reported by the first communication device (UE), such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), PDCP delay, etc. It can also be represented by defining different numerical values ​​for a certain field, for example, 00000001 for RSRP, 00000010 for RSRQ, etc. The first indicator is used to indicate that only the data that meets the first indicator in the collected data needs to be reported / transmitted. For example, the first indicator can be integrity (generally defined as measured by the degree of data collection, which is the ratio between the data that should be collected and the data actually collected. There are multiple specific calculation formulas), and for example, the integrity is not less than 80%. For example, the measurement value under the condition that the SNR is not lower than the threshold, and for example, the threshold is 0dB. For another example, the first indicator can be set for the perception data by the perception SNR. The "perception SNR" is different from the aforementioned SNR. The perception SNR refers to the signal-to-noise power ratio of the target signal after the perception signal is transformed into at least one of the delay domain, Doppler domain, and angle domain. Similarly, there can also be a "perception SINR", which is the signal-to-interference-to-noise power ratio of the target signal after the first signal is transformed into at least one of the delay domain, Doppler domain, and angle domain.

[0242] Step 2: The first communication device (UE) receives the first message and determines whether to perform source coding based on the first message. Optionally, at least one of the following is determined based on the first message: candidate source coding algorithms and candidate geographical area information capable of performing source coding.

[0243] Step 3: The first communication device (UE) sends a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0244] When the data to be transmitted or transmitted is source coded, the second message may optionally further include at least one of the following:

[0245] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0246] Source coded data or data that is not source coded. Source coded data can also be called source coded output data.

[0247] The parity bit is used to verify the source coding of the data being transmitted or transmitted. The verification object can be a single source-coded data packet. For example, the source encoder generates parity bits (check bits) by applying a check algorithm (such as parity check) to the data before source coding. After receiving the data packet, the receiver performs source decoding and uses the same check algorithm to generate parity bits for the decoded data. If the parity bits are consistent with those of the received encoder, the source coding and decoding are considered correct; otherwise, the code is considered incorrect.

[0248] The sequence number of the data transmitted;

[0249] The size of the data to be transferred.

[0250] For example, the second message may be sent in one or more of the following ways:

[0251] Mode 1: The first communication device (UE) sends a second message according to the configuration information, where the second message includes fourth indication information, where the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0252] Mode 2: The first communication device (UE) stores data according to configuration information and, based on the candidate geographic area information capable of source coding in the first message, selects a second message to trigger data reporting when appropriate. The second message includes fourth indication information and the size of the data to be transmitted, the fourth indication information being used to indicate whether the data to be transmitted is source coded.

[0253] Mode 3: The first communication device (UE) sends a second message according to the configuration information, where the second message includes fourth indication information and data, where the fourth indication information is used to indicate whether the transmitted data is source encoded.

[0254] The configuration information may include the information in the above-mentioned first message, such as the candidate geographical area information that can be used for source coding. When the UE collects data and determines when to send the second message, the UE needs to judge whether the current location is in the candidate geographical area based on the configured candidate geographical area, so as to determine whether to send the second message.

[0255] In addition, the configuration information may also include resource configuration information set for the UE to report data (for example, on which time slot and frequency resource to send the second message, etc.).

[0256] Step 4: The third communication device receives the second message and determines whether to perform source decoding and how to perform decoding based on the second message. The third communication device can be the second communication device (radio access network device) or another communication device different from the second communication device (for example, the second communication device is a centralized unit-control plane (CU-CP) and the third communication device is a centralized unit-data plane (CU-DP).

[0257] Example 2:

[0258] This embodiment differs from Embodiment 1 in that the second communication device is a core network device, such as a sensing function (SF), a positioning management function (LMF), or a data plane function (DPF). This embodiment describes a method for supporting source coding in a sensing protocol (e.g., a sensing protocol), a positioning protocol (LTE positioning protocol), or a data plane protocol. If the protocol layer corresponding to the data plane protocol stack is referred to as the first data plane function protocol, see the data plane protocol stack diagram of the data plane protocol architecture of the UE, radio access network, and core network shown in FIG3 .

[0259] The source coding method in the embodiment of the present application includes the following steps:

[0260] First, the UE sends UE capability information to the network side device, where the UE capability information includes the UE's source coding capability information. This step is optional.

[0261] For example, based on the 5G protocol, the information shown in Table 4 can be added to the 5GMM capability information element of the UE capability information to indicate the UE's source coding capability information:

[0262] Table 4

[0263] In some embodiments, source coding may also be supported through LPP or SP protocols. In this case, whether the LPP capability is supported in the existing 5GMM capability information element also indicates whether source coding is supported in the positioning data.

[0264] The following briefly describes the process of the source coding-related interaction between the first communication device (UE) and the second communication device (core network device) based on the trigger condition:

[0265] Step 1: The second communication device (core network device) sends a first message to the first communication device (UE). The first message includes: a first trigger condition for performing source coding on the data to be transmitted, and may also include a second trigger condition for ending source coding on the data to be transmitted. The first trigger condition and the second trigger condition each include at least one of the following: a trigger parameter, a trigger event identifier, and a trigger threshold corresponding to the trigger parameter or the trigger parameter described by the trigger event. An example first message includes one or more items of Table 3, which will not be repeated here.

[0266] It should be pointed out that scheduling resources are usually determined by the wireless access network equipment. Therefore, if the core network uses the data length before source encoding and the data size that can be transmitted by the scheduled transmission resources as trigger conditions, then the second communication device usually needs to negotiate with the wireless access network equipment.

[0267] Step 2: The first communication device (UE) receives the first message and determines whether to perform source coding based on the first message. Optionally, at least one of the following is determined based on the first message: candidate source coding algorithms and candidate geographical area information capable of performing source coding.

[0268] Step 3: The first communication device (UE) sends a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0269] When the data to be transmitted or transmitted is source coded, the second message may optionally further include at least one of the following:

[0270] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0271] Source coded data or data that is not source coded. Source coded data can also be called source coded output data.

[0272] The parity bit is used to verify the source coding of the data being transmitted or transmitted. The verification object can be a single source-coded data packet. For example, the source encoder generates parity bits (check bits) by applying a check algorithm (such as parity check) to the data before source coding. After receiving the data packet, the receiver performs source decoding and uses the same check algorithm to generate parity bits for the decoded data. If the parity bits are consistent with those of the received encoder, the source coding and decoding are considered correct; otherwise, the code is considered incorrect.

[0273] The sequence number of the data transmitted;

[0274] The size of the data to be transferred.

[0275] Step 4: The third communication device receives the second message and determines whether to perform source decoding and how to perform decoding based on the second message. The third communication device can be the second communication device (core network device) or another communication device different from the second communication device (for example, the second communication device is an SF / LMF and the third communication device is a DPF or a radio access network device).

[0276] Example 3:

[0277] In this embodiment, the second communication device is a core network device, and the first communication device is a wireless access network device.

[0278] Considering that the first communication device generally has limited storage capacity, the first communication device determines whether to perform source coding according to the received first trigger condition and the collected data.

[0279] First, existing protocols generally do not involve the capability definition of wireless access network devices. If a subsequent version is introduced, the aforementioned UE source coding capability definition and registration to the node on the network side responsible for wireless access network device registration can be referred to.

[0280] The source coding method in the embodiment of the present application includes the following steps:

[0281] Step 1: A second communication device (core network device) sends a first message to a first communication device (radio access network device). The first message includes: a first trigger condition for performing source coding on the data to be transmitted, and may also include a second trigger condition for ending source coding on the data to be transmitted. The first trigger condition and the second trigger condition each include at least one of the following: a trigger parameter, a trigger event identifier, and a trigger threshold corresponding to the trigger parameter or the trigger parameter described by the trigger event. An example first message includes one or more items from Table 3, which are not further described here.

[0282] It should be noted that there may be multiple situations for the transmission resources involved in the trigger conditions. Since data backhaul between core network equipment and wireless access network equipment usually adopts wired transmission, and the operator's backhaul resources are usually relatively abundant. Therefore, when wired transmission resources are not limited, this embodiment does not use transmission resources as a triggering event. In addition, when wired transmission resources are limited, the transmission resources are resources allocated by the wired network to the data transmission to be transmitted through a virtual private network (VPN) and other means. At the same time, there is also the case of wireless backhaul. In this case, the transmission resources are wireless resources used to transmit the data to be transmitted between the core network equipment and the wireless access network equipment.

[0283] Step 2: The first communication device (wireless access network device) receives the first message and determines whether to perform source coding based on the first message. Optionally, at least one of the following is determined based on the first message: candidate source coding algorithms and candidate geographical area information capable of performing source coding.

[0284] Step 3: The first communication device (radio access network device) sends a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0285] When the data to be transmitted or transmitted is source coded, the second message may optionally further include at least one of the following:

[0286] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0287] Source coded data or data that is not source coded. Source coded data can also be called source coded output data.

[0288] The parity bit is used to verify the source coding of the data being transmitted or transmitted. The verification object can be a single source-coded data packet. For example, the source encoder generates parity bits (check bits) by applying a check algorithm (such as parity check) to the data before source coding. After receiving the data packet, the receiver performs source decoding and uses the same check algorithm to generate parity bits for the decoded data. If the parity bits are consistent with those of the received encoder, the source coding and decoding are considered correct; otherwise, the code is considered incorrect.

[0289] The sequence number of the data transmitted;

[0290] The size of the data to be transferred.

[0291] Step 4: The third communication device receives the second message and determines whether to perform source decoding and how to perform decoding based on the second message. The third communication device can be the second communication device (core network device) or another node different from the second communication device (for example, the second communication device is an SF / LMF and the third communication device is a data storage function DRF).

[0292] The source coding method provided in the embodiment of the present application can be executed by a source coding device. In the embodiment of the present application, the source coding device performing the source coding method is taken as an example to illustrate the source coding device provided in the embodiment of the present application.

[0293] Referring to FIG6 , an embodiment of the present application further provides a source coding device 30, comprising:

[0294] The first receiving module 31 is configured to receive a first message, wherein the first message includes: a first trigger condition for performing source coding on data to be transmitted;

[0295] The first determining module 32 is configured to determine whether to perform source coding on the data to be transmitted according to whether the first trigger condition is met.

[0296] In an embodiment of the present application, a first message indicates a first trigger condition for performing source coding on the data to be transmitted, and the first communication device determines whether to perform source coding on the data to be transmitted based on whether the first trigger condition is met, thereby supporting source coding of data transmitted within the mobile network, thereby achieving the effect of saving storage resources and transmission resources.

[0297] Optionally, the first trigger condition includes at least one of the following: a first trigger parameter, an identifier of a first trigger event, a trigger threshold corresponding to the first trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the first trigger event.

[0298] Optionally, the first trigger parameter includes at least one of the following:

[0299] The length of the data before source encoding;

[0300] The length of the data after source encoding;

[0301] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0302] The size of the transmission resources available for the data to be transmitted;

[0303] The size of the storage resources available for the data to be transmitted;

[0304] The time length of the source encoding;

[0305] The length of time it takes to decode the source;

[0306] The sum of the time required for source encoding and source decoding.

[0307] Optionally, the first message further includes: a second trigger condition for ending source coding of the data to be transmitted; and the source coding device 30 further includes:

[0308] The second determining module is configured to determine whether to disable source coding for the data to be transmitted according to whether the second trigger condition is met.

[0309] Optionally, the second trigger condition includes at least one of the following: a second trigger parameter, an identifier of a second trigger event, a trigger threshold corresponding to the second trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the second trigger event.

[0310] Optionally, the second trigger parameter includes at least one of the following:

[0311] The length of the data before source encoding;

[0312] The length of the data after source encoding;

[0313] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0314] The size of the transmission resources available for the data to be transmitted;

[0315] The size of the storage resources available for the data to be transmitted;

[0316] The time length of the source encoding;

[0317] The length of time it takes to decode the source;

[0318] The sum of the time required for source encoding and source decoding.

[0319] Optionally, the first message further includes at least one of the following:

[0320] The first indication information is used to indicate whether to use lossy source coding or lossless source coding;

[0321] Candidate source coding algorithm or algorithm identifier;

[0322] The size of the buffer used for source encoding;

[0323] Brief introduction of candidate sources;

[0324] Information about candidate geographical areas that can be used for source coding.

[0325] Optionally, the candidate geographical area information includes at least one of the following:

[0326] Global Cell Identifier CGI;

[0327] Physical cell identifier PCI;

[0328] Carrier frequency information;

[0329] Tracking Area Code (TAC);

[0330] Tracking area identifier TAI;

[0331] Geographical location area;

[0332] RAN-based Notification Area.

[0333] Optionally, the information source encoding device 30 further includes:

[0334] The first sending module is used to send source coding capability information of a first communication device, where the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding.

[0335] Optionally, the source coding capability information further includes at least one of the following:

[0336] The maximum number of entities supported using source encoding;

[0337] The third indication information is used to indicate support for at least one of lossy source coding and lossless source coding;

[0338] Supported source coding algorithms or algorithm identifiers.

[0339] Optionally, the source coding capability information is defined by capability parameters of a data plane protocol layer or indicated by general parameters in capability parameters of the first communication device.

[0340] Optionally, the information source encoding device 30 further includes:

[0341] The second sending module is used to send a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0342] Optionally, the second message further includes at least one of the following:

[0343] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0344] Source-encoded data or data that is not source-encoded;

[0345] Check bit, used to check the source code of the data to be transmitted or transmitted;

[0346] The sequence number of the data transmitted;

[0347] The size of the data to be transferred.

[0348] The source coding device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0349] The source coding device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0350] Referring to FIG. 7 , an embodiment of the present application further provides a source coding device 40, comprising:

[0351] The first sending module 41 is configured to send a first message, where the first message includes a first triggering condition for performing source coding on data to be transmitted.

[0352] Optionally, the first trigger condition includes at least one of the following: a first trigger parameter, an identifier of a first trigger event, a trigger threshold corresponding to the first trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the first trigger event.

[0353] Optionally, the first trigger parameter includes at least one of the following:

[0354] The length of the data before source encoding;

[0355] The length of the data after source encoding;

[0356] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0357] The size of the transmission resources available for the data to be transmitted;

[0358] The size of the storage resources available for the data to be transmitted;

[0359] The time length of the source encoding;

[0360] The length of time it takes to decode the source;

[0361] The sum of the time required for source encoding and source decoding.

[0362] Optionally, the first message further includes: a second trigger condition for ending source encoding of the data to be transmitted.

[0363] Optionally, the second trigger condition includes at least one of the following: a second trigger parameter, an identifier of a second trigger event, a trigger threshold corresponding to the second trigger parameter, and a trigger threshold corresponding to the trigger parameter described by the second trigger event.

[0364] Optionally, the second trigger parameter includes at least one of the following:

[0365] The length of the data before source encoding;

[0366] The length of the data after source encoding;

[0367] Compression ratio, where the compression ratio is defined as one of the following: the length of the data after source coding divided by the length of the data before source coding, the length of the data before source coding divided by the length of the data after source coding, or 1-the length of the data after source coding / the length of the data before source coding;

[0368] The size of the transmission resources available for the data to be transmitted;

[0369] The size of the storage resources available for the data to be transmitted;

[0370] The time length of the source encoding;

[0371] The length of time it takes to decode the source;

[0372] The sum of the time required for source encoding and source decoding.

[0373] Optionally, the first message further includes at least one of the following:

[0374] The first indication information is used to indicate whether to use lossy source coding or lossless source coding;

[0375] Candidate source coding algorithm or algorithm identifier;

[0376] The size of the buffer used for source encoding;

[0377] Brief introduction of candidate sources;

[0378] Information about candidate geographical areas that can be used for source coding.

[0379] Optionally, the candidate geographical area information includes at least one of the following:

[0380] Global Cell Identifier CGI;

[0381] Physical cell identifier PCI;

[0382] Carrier frequency information;

[0383] Tracking Area Code (TAC);

[0384] Tracking area identifier TAI;

[0385] Geographical location area;

[0386] RAN-based Notification Area.

[0387] Optionally, the information source encoding device 40 further includes:

[0388] A first receiving module is configured to receive source coding capability information of a first communication device, where the source coding capability information includes second indication information, where the second indication information is used to indicate whether the first communication device supports source coding;

[0389] A determination module is used to determine the first message according to the source coding capability information.

[0390] Optionally, the source coding capability information further includes at least one of the following:

[0391] The maximum number of entities supported using source encoding;

[0392] The third indication information is used to indicate support for at least one of lossy source coding and lossless source coding;

[0393] Supported source coding algorithms or algorithm identifiers.

[0394] Optionally, the source coding capability information is defined by capability parameters of a data plane protocol layer or indicated by general parameters in capability parameters of the first communication device.

[0395] Optionally, the information source encoding device 40 further includes:

[0396] The second receiving module is used to receive a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

[0397] Optionally, the second message further includes at least one of the following:

[0398] The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted;

[0399] Source-encoded data or data that is not source-encoded;

[0400] Check bit, used to check the source code of the data to be transmitted or transmitted;

[0401] The sequence number of the data transmitted;

[0402] The size of the data to be transferred.

[0403] The source coding device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 5 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0404] As shown in FIG8 , an embodiment of the present application further provides a communication device 50, comprising a processor 51 and a memory 52. ​​The memory 52 stores a program or instruction that can be executed on the processor 51. For example, when the communication device 50 is a first communication device, the program or instruction, when executed by the processor 51, implements the various steps of the embodiment of the source coding method performed by the first communication device, and can achieve the same technical effect. When the communication device 50 is a second communication device, the program or instruction, when executed by the processor 51, implements the various steps of the embodiment of the source coding method performed by the second communication device, and can achieve the same technical effect. To avoid repetition, these steps will not be described here.

[0405] The present application also provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG4 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0406] The terminal 60 includes but is not limited to: a radio frequency unit 61, a network module 62, an audio output unit 63, an input unit 64, a sensor 65, a display unit 66, a user input unit 67, an interface unit 68, a memory 69 and at least some of the components of the processor 610.

[0407] Those skilled in the art will appreciate that the terminal 60 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 610 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG9 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0408] It should be understood that in an embodiment of the present application, the input unit 64 may include a graphics processing unit (GPU) 641 and a microphone 642, and the graphics processor 641 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 66 may include a display panel 661, and the display panel 661 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 67 includes a touch panel 671 and at least one of other input devices 672. The touch panel 671 is also called a touch screen. The touch panel 671 may include two parts: a touch detection device and a touch controller. Other input devices 672 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0409] In the embodiment of the present application, after receiving downlink data from the network-side device, the RF unit 61 can transmit the data to the processor 610 for processing. In addition, the RF unit 61 can send uplink data to the network-side device. Generally, the RF unit 61 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0410] The memory 69 can be used to store software programs or instructions and various data. The memory 69 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 69 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 69 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0411] Processor 610 may include one or more processing units. Optionally, processor 610 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 610.

[0412] The radio frequency unit 61 is configured to receive a first message, wherein the first message includes: a first trigger condition for performing source coding on the data to be transmitted;

[0413] The processor 610 is configured to determine whether to perform source coding on the data to be transmitted according to whether the first trigger condition is met.

[0414] In an embodiment of the present application, a first message indicates a first trigger condition for performing source coding on the data to be transmitted, and the first communication device determines whether to perform source coding on the data to be transmitted based on whether the first trigger condition is met, thereby supporting source coding of data transmitted within the mobile network, thereby achieving the effect of saving storage resources and transmission resources.

[0415] Alternatively, the radio frequency unit 61 is configured to send a first message, where the first message includes: a first triggering condition for performing source coding on the data to be transmitted.

[0416] In an embodiment of the present application, a first message indicates a first trigger condition for performing source coding on the data to be transmitted. The receiving end of the first message can determine whether to perform source coding on the data to be transmitted based on the first trigger condition, thereby improving the flexibility of source coding and the efficiency of data transmission.

[0417] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 4 or Figure 5, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0418] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in Figure 4 or Figure 5. This network-side device embodiment corresponds to the method embodiment shown in Figure 4 or Figure 5 above, and each implementation process and implementation method of the above method embodiment can be applied to this network-side device embodiment and can achieve the same technical effects.

[0419] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 10, the network-side device 70 includes an antenna 71, a radio frequency device 72, a baseband device 73, a processor 74, and a memory 75. Antenna 71 is connected to radio frequency device 72. In the uplink direction, radio frequency device 72 receives information via antenna 71 and sends the received information to baseband device 73 for processing. In the downlink direction, baseband device 73 processes the information to be transmitted and sends it to radio frequency device 72. Radio frequency device 72 processes the received information and then sends it through antenna 71.

[0420] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 73 , which includes a baseband processor.

[0421] The baseband device 73 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 7, one of which is, for example, a baseband processor, which is connected to the memory 75 through a bus interface to call the program in the memory 75 and execute the network device operations shown in the above method embodiment.

[0422] The network side device may further include a network interface 76, which is, for example, a Common Public Radio Interface (CPRI).

[0423] Specifically, the network side device 70 of the embodiment of the present application also includes: instructions or programs stored in the memory 75 and executable on the processor 74. The processor 74 calls the instructions or programs in the memory 75 to execute the methods executed by the modules shown in FIG6 or FIG7 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0424] Specifically, the embodiment of the present application further provides a network-side device. As shown in FIG11 , the network-side device 80 includes a processor 81, a network interface 82, and a memory 83. The network interface 82 is, for example, a common public radio interface (CPRI).

[0425] Specifically, the network side device 80 of the embodiment of the present application also includes: instructions or programs stored in the memory 83 and executable on the processor 81. The processor 81 calls the instructions or programs in the memory 83 to execute the methods executed by the modules shown in FIG4 or FIG5 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0426] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned source coding method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0427] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0428] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned source coding method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0429] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0430] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned source coding method embodiment and can achieve the same technical effects. To avoid repetition, they are not described here.

[0431] An embodiment of the present application also provides a communication system, including: a first communication device and a second communication device, wherein the first communication device can be used to execute the steps of the source coding method executed by the first communication device as described above, and the second communication device can be used to execute the steps of the source coding method executed by the second communication device as described above.

[0432] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising 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 the opposite 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.

[0433] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0434] 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 this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A source coding method, wherein: include: The first communication device receives a first message, wherein the first message includes: a first trigger condition for performing source coding on data to be transmitted; The first communication device determines whether to perform source coding on the data to be transmitted according to whether the first trigger condition is met.

2. The method according to claim 1, wherein: The first trigger condition includes at least one of the following: a first trigger parameter, an identifier of a first trigger event, a trigger threshold value corresponding to the first trigger parameter, and a trigger threshold value corresponding to the trigger parameter described by the first trigger event.

3. The method according to claim 2, wherein: The first trigger parameter includes at least one of the following: The length of the data before source encoding; The length of the data after source encoding; Compression ratio, where the compression ratio is defined as one of the following: the length of data after source coding divided by the length of data before source coding, the length of data before source coding divided by the length of data after source coding, 1-the length of data after source coding / the length of data before source coding; The size of the transmission resources that can be used by the data to be transmitted; The size of the storage resources available for the data to be transmitted; The time length of the source encoding; The length of time it takes to decode the source; The sum of the time required for source encoding and source decoding.

4. The method according to claim 1, wherein: The first message further includes: a second trigger condition for ending source coding of the data to be transmitted; and the method further includes: The first communication device determines whether to turn off source coding for the data to be transmitted according to whether the second trigger condition is met.

5. The method according to claim 4, wherein: The second trigger condition includes at least one of the following: a second trigger parameter, an identifier of a second trigger event, a trigger threshold value corresponding to the second trigger parameter, and a trigger threshold value corresponding to the trigger parameter described by the second trigger event.

6. The method according to claim 5, wherein: The second trigger parameter includes at least one of the following: The length of the data before source encoding; The length of the data after source encoding; Compression ratio, where the compression ratio is defined as one of the following: the length of data after source coding divided by the length of data before source coding, the length of data before source coding divided by the length of data after source coding, 1-the length of data after source coding / the length of data before source coding; The size of the transmission resources that can be used by the data to be transmitted; The size of the storage resources available for the data to be transmitted; The time length of the source encoding; The length of time it takes to decode the source; The sum of the time required for source encoding and source decoding.

7. The method according to claim 1, wherein: The first message also includes at least one of the following: The first indication information is used to indicate whether to use lossy source coding or lossless source coding; Candidate source coding algorithms or algorithm identifiers; The buffer size used for source encoding; Brief introduction of candidate sources; Information about candidate geographical areas that can be source coded.

8. The method according to claim 7, wherein: The candidate geographic area information includes at least one of the following: Global Cell Identifier CGI; Physical cell identifier PCI; Carrier frequency information; Tracking area code TAC; Tracking area identifier TAI; Geographical location area; The notification area is based on the radio access network RAN.

9. The method according to claim 1, wherein: Also includes: The first communication device sends source coding capability information of the first communication device, where the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding.

10. The method according to claim 9, wherein: The source coding capability information also includes at least one of the following: The maximum number of entities supported using source encoding; The third indication information is used to indicate that at least one of lossy source coding and lossless source coding is supported; Supported source coding algorithms or algorithm identifiers.

11. The method according to claim 9 or 10, wherein: The source coding capability information is defined by capability parameters of a data plane protocol layer or indicated by common parameters in capability parameters of the first communication device.

12. The method according to claim 1, wherein: Also includes: The first communication device sends a second message, where the second message includes fourth indication information, where the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

13. The method according to claim 12, wherein: The second message further includes at least one of the following: The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted; Source coded data or data that is not source coded; Check bit, used to check the source code of the data to be transmitted or transmitted; The sequence number of the data transmitted; The size of the data to be transferred.

14. A source coding method, wherein: include: The second communication device sends a first message, where the first message includes: a first trigger condition for performing source coding on the data to be transmitted.

15. The method according to claim 14, wherein: The first trigger condition includes at least one of the following: a first trigger parameter, an identifier of a first trigger event, a trigger threshold value corresponding to the first trigger parameter, and a trigger threshold value corresponding to the trigger parameter described by the first trigger event.

16. The method according to claim 15, wherein: The first trigger parameter includes at least one of the following: The length of the data before source encoding; The length of the data after source encoding; Compression ratio, where the compression ratio is defined as one of the following: the length of data after source coding divided by the length of data before source coding, the length of data before source coding divided by the length of data after source coding, 1-the length of data after source coding / the length of data before source coding; The size of the transmission resources that can be used by the data to be transmitted; The size of the storage resources available for the data to be transmitted; The time length of the source encoding; The length of time it takes to decode the source; The sum of the time required for source encoding and source decoding.

17. The method according to claim 14, wherein: The first message also includes: a second trigger condition for ending source encoding of the data to be transmitted.

18. The method according to claim 17, wherein: The second trigger condition includes at least one of the following: the second trigger condition includes at least one of the following: a second trigger parameter, an identifier of a second trigger event, a trigger threshold value corresponding to the second trigger parameter, and a trigger threshold value corresponding to the trigger parameter described by the second trigger event.

19. The method according to claim 17, wherein: The second trigger parameter includes at least one of the following: The length of the data before source encoding; The length of the data after source encoding; Compression ratio, where the compression ratio is defined as one of the following: the length of data after source coding divided by the length of data before source coding, the length of data before source coding divided by the length of data after source coding, 1-the length of data after source coding / the length of data before source coding; The size of the transmission resources that can be used by the data to be transmitted; The size of the storage resources available for the data to be transmitted; The time length of the source encoding; The length of time it takes to decode the source; The sum of the time required for source encoding and source decoding.

20. The method according to claim 14, wherein: The first message also includes at least one of the following: The first indication information is used to indicate whether to use lossy source coding or lossless source coding; Candidate source coding algorithms or algorithm identifiers; The buffer size used for source encoding; Brief introduction of candidate sources; Information about candidate geographical areas that can be source coded.

21. The method according to claim 20, wherein: The candidate geographic area information includes at least one of the following: Global Cell Identifier CGI; Physical cell identifier PCI; Carrier frequency information; Tracking area code TAC; Tracking area identifier TAI; Geographical location area; The notification area is based on the radio access network RAN.

22. The method according to claim 14, wherein: Also includes: The second communication device receives source coding capability information of the first communication device, where the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding; The second communication device determines the first message according to the source coding capability information.

23. The method according to claim 22, wherein: The source coding capability information also includes at least one of the following: The maximum number of entities supported using source encoding; The third indication information is used to indicate that at least one of lossy source coding and lossless source coding is supported; Supported source coding algorithms or algorithm identifiers.

24. The method according to claim 22 or 23, wherein: The source coding capability information is defined by capability parameters of a data plane protocol layer or indicated by common parameters in capability parameters of the first communication device.

25. The method of claim 14, wherein: Also includes: The second communication device receives a second message, where the second message includes fourth indication information, where the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

26. The method according to claim 25, wherein: The second message further includes at least one of the following: The source coding algorithm or algorithm identifier used for the data to be transmitted or transmitted; Source coded data or data that is not source coded; Check bit, used to check the source code of the data to be transmitted or transmitted; The sequence number of the data transmitted; The size of the data to be transferred.

27. A source coding device, wherein: include: A first receiving module, configured to receive a first message, wherein the first message includes: a first trigger condition for performing source coding on data to be transmitted; The first determining module is used to determine whether to perform source coding on the data to be transmitted according to whether the first trigger condition is met.

28. The device according to claim 27, wherein The first message further includes: a second trigger condition for ending source coding of the data to be transmitted; and the source coding device further includes: The second determining module is used to determine whether to turn off source coding for the data to be transmitted according to whether the second trigger condition is met.

29. The device according to claim 27, wherein: Also includes: The first sending module is used to send source coding capability information of a first communication device, where the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding.

30. The device according to claim 27, wherein: Also includes: The second sending module is used to send a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

31. A source coding device, wherein: include: The first sending module is used to send a first message, wherein the first message includes: a first triggering condition for performing source coding on data to be transmitted.

32. The device according to claim 31, wherein Also includes: A first receiving module, configured to receive source coding capability information of a first communication device, wherein the source coding capability information includes second indication information, and the second indication information is used to indicate whether the first communication device supports source coding; A determination module is used to determine the first message according to the source coding capability information.

33. The device according to claim 31, wherein Also includes: The second receiving module is used to receive a second message, where the second message includes fourth indication information, and the fourth indication information is used to indicate whether the data to be transmitted or transmitted is source encoded.

34. A communication device, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the source coding method according to any one of claims 1 to 13 are implemented, or when the program or instruction is executed by the processor, the steps of the source coding method according to any one of claims 14 to 26 are implemented.

35. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the source coding method as described in any one of claims 1 to 13, or implements the steps of the source coding method as described in any one of claims 14 to 26.

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