Method for delay status reporting, terminal, network device, communication system, and storage medium

Abstract

Embodiments of the present disclosure provide a method for delay status reporting, a terminal, a network device, a communication system, and a storage medium. The method is executed by a terminal, and the method comprises: determining first information of delay status reporting (DSR) for a packet data convergence protocol (PDCP) layer, the first information indicating a first data volume, and the first data volume being the data volume of a data packet to be transmitted having a remaining time less than or equal to a time threshold value. Thus, a communication mechanism adapted to DSR may be implemented.

Description

Delay status reporting method, terminal, network device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a delay status reporting method, terminal, network device, communication system and storage medium. Background Art

[0002] In the field of communications technology, the network has introduced a Delay Status Reporting (DSR) mechanism to monitor the status of data packets to be transmitted. Terminals use DSR to report data transmission delay information to the network.

[0003] Summary of the Invention

[0004] After the DSR mechanism is introduced, the information carried in the DSR is an issue that needs to be considered.

[0005] Embodiments of the present disclosure provide a terminal, a network device, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a delay status reporting method is provided, the method being executed by a terminal, the method including:

[0007] Determine first information for reporting a delay status DSR of a packet data convergence protocol (PDCP) layer;

[0008] The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

[0009] According to a second aspect of an embodiment of the present disclosure, a delay status reporting method is provided, the method being executed by a network device, the method comprising:

[0010] receiving first information sent by a terminal;

[0011] Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

[0012] According to a third aspect of an embodiment of the present disclosure, a delay status reporting method is provided, the method comprising:

[0013] The terminal sends first information to the network device;

[0014] Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0016] The processing module is configured to:

[0017] Determine first information for reporting a delay status DSR of a packet data convergence protocol (PDCP) layer;

[0018] The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, the network device including:

[0020] The transceiver module is configured as follows:

[0021] receiving first information sent by a terminal;

[0022] Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

[0023] According to the sixth aspect of an embodiment of the present disclosure, a communication system is provided, wherein the communication system includes a terminal and an access network device, the terminal is configured to implement the communication method provided by the first aspect, and the access network device is configured to implement the communication method provided by the second aspect.

[0024] According to a seventh aspect of an embodiment of the present disclosure, a terminal is provided, wherein the terminal includes:

[0025] memory, including executable instructions;

[0026] one or more processors;

[0027] When the executable instructions are executed by the processor, the terminal executes the communication method provided in the first aspect.

[0028] According to an eighth aspect of an embodiment of the present disclosure, a network device is provided, wherein the network device includes:

[0029] memory, including executable instructions;

[0030] one or more processors;

[0031] When the executable instructions are executed by the processor, the network device executes the communication method provided in the second aspect.

[0032] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the communication method provided by the first aspect, the second aspect or the third aspect.

[0033] The technical solution provided by the embodiments of the present disclosure can clearly determine the information in the DSR.

[0034] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0036] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0037] FIG2a is a schematic flow chart showing a method for reporting a delay status according to an exemplary embodiment;

[0038] FIG3a is a schematic flow chart showing a method for reporting a delay status according to an exemplary embodiment;

[0039] FIG3 b is a schematic flow chart showing a method for reporting a delay status according to an exemplary embodiment;

[0040] FIG4a is a schematic flow chart showing a method for reporting a delay status according to an exemplary embodiment;

[0041] FIG4 b is a schematic diagram showing a flow chart of a method for reporting a delay status according to an exemplary embodiment;

[0042] FIG5a is a schematic flow chart showing a method for reporting a delay status according to an exemplary embodiment;

[0043] FIG6a is a schematic structural diagram of a network device according to an exemplary embodiment;

[0044] FIG6b is a schematic structural diagram of a terminal according to an exemplary embodiment;

[0045] FIG7a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0046] Fig. 7b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0047] Embodiments of the present disclosure provide a delay status reporting method, a terminal, a network device, a communication system, and a storage medium.

[0048] In a first aspect, an embodiment of the present disclosure provides a method for reporting a delay status, the method being executed by a terminal, the method including:

[0049] Determine first information for reporting a delay status DSR of a packet data convergence protocol (PDCP) layer;

[0050] The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

[0051] In the above embodiment, since the first information indicates the first data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold, the network device can accurately obtain the first data volume after receiving the first information, so that subsequent data can be scheduled more accurately.

[0052] In combination with the embodiments of the first aspect above, in some embodiments, the first data volume is the data volume of data packets to be transmitted whose remaining time is less than or equal to a time threshold determined from associated data packets to be transmitted.

[0053] In the above embodiment, the first data volume can be accurately determined based on the associated data packets to be transmitted, so that subsequent data can be scheduled more accurately.

[0054] In combination with the embodiments of the first aspect above, in some embodiments, the associated data packet to be transmitted is a data packet to be transmitted determined based on a packet set, and the packet set includes at least one data packet to be transmitted.

[0055] In the above embodiment, the associated data packets to be transmitted are clearly defined.

[0056] In conjunction with the embodiments of the first aspect above, in some embodiments, the method includes one of the following:

[0057] Determining the associated data packet to be transmitted based on the protocol rule information;

[0058] The associated data packet to be transmitted is determined based on the network configuration information.

[0059] In the above embodiment, the associated transmission data packet may be determined based on protocol rule information or network configuration information, and the determination method is more flexible.

[0060] In conjunction with the embodiments of the first aspect above, in some embodiments, determining the associated data packet to be transmitted based on the protocol rule includes:

[0061] It is determined that the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are determined as the associated data packets to be transmitted.

[0062] In the above embodiment, the associated data packets to be transmitted may be determined based on different protocol rule information provisions, and the determination method may be more flexible.

[0063] In conjunction with the embodiments of the first aspect above, in some embodiments, determining the associated data packet to be transmitted based on the network configuration information includes:

[0064] receiving second information sent by the network device;

[0065] The associated data packet to be transmitted is determined based on the second information.

[0066] In the above embodiment, the network device may directly send the second information for determining the associated data packet to be transmitted to the terminal.

[0067] In conjunction with the embodiments of the first aspect above, in some embodiments, the second information indicates one of the following:

[0068] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted;

[0069] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

[0070] In the above embodiment, the associated data packets to be transmitted in different scenarios can be indicated, and the indication method is more flexible.

[0071] In combination with the embodiment of the first aspect above, in some embodiments, the method further includes:

[0072] It is determined that the network configuration has a packet loss mode based on a packet set, and the protocol rule information and / or the network configuration information are effective.

[0073] In the above embodiments, the manner in which the protocol rule information and / or the network configuration information takes effect is specified.

[0074] In combination with the embodiment of the first aspect above, in some embodiments, the method further includes:

[0075] The first information is sent to the network device.

[0076] In the above embodiment, the network device may receive the first information.

[0077] In combination with the embodiment of the first aspect above, in some embodiments, the associated data packet to be transmitted is a PDCP service data unit SDU and / or a PDCP packet data unit PDU associated with the PDCP SDU.

[0078] In the above embodiment, the composition of the associated data packets is more diverse.

[0079] In a second aspect, an embodiment of the present disclosure provides a delay status reporting method, the method being performed by a network device, the method comprising:

[0080] receiving first information sent by a terminal;

[0081] Among them, the first information is information determined by the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold; the remaining time is the time from the time when the data packet to be transmitted in the logical channel is discarded.

[0082] In combination with the embodiments of the second aspect above, in some embodiments, the first data volume is the data volume of data packets to be transmitted whose remaining time is less than or equal to a time threshold determined from associated data packets to be transmitted.

[0083] In combination with the embodiment of the second aspect above, in some embodiments, the method further includes:

[0084] sending second information to the terminal;

[0085] The second information is used to determine the associated data packet to be transmitted.

[0086] In conjunction with the embodiments of the second aspect above, in some embodiments, the second information indicates one of the following:

[0087] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted;

[0088] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

[0089] In a third aspect, an embodiment of the present disclosure provides a method for reporting a delay status, the method comprising:

[0090] The terminal sends first information to the network device;

[0091] Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

[0092] In a fourth aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0093] The processing module is configured to:

[0094] Determine first information for reporting a delay status DSR of a packet data convergence protocol (PDCP) layer;

[0095] The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

[0096] In a fifth aspect, an embodiment of the present disclosure provides a network device, the network device comprising:

[0097] The transceiver module is configured as follows:

[0098] receiving first information sent by a terminal;

[0099] Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

[0100] In a sixth aspect, an embodiment of the present disclosure provides a communication system, wherein the communication system includes a terminal and a network device, the terminal is configured to implement the communication method described in the optional implementation manner of the first aspect, and the network device is configured to implement the communication method described in the optional implementation manner of the second aspect.

[0101] In a seventh aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0102] memory, including executable instructions;

[0103] one or more processors;

[0104] When the executable instructions are executed by the processor, the terminal executes the communication method described in the optional implementation manner of the first aspect.

[0105] In an eighth aspect, an embodiment of the present disclosure provides a network device, the network device comprising:

[0106] memory, including executable instructions;

[0107] one or more processors;

[0108] When the executable instructions are executed by the processor, the network device executes the communication method described in the optional implementation manner of the second aspect.

[0109] In the ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the communication method described in the optional implementation of the first aspect, the second aspect or the third aspect.

[0110] In a tenth aspect, an embodiment of the present disclosure provides a program product, which, when executed by a communication device, enables the communication device to execute the communication method described in the optional implementation manner of the first aspect, the second aspect, or the third aspect.

[0111] In an eleventh aspect, an embodiment of the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the communication method described in the optional implementation of the first aspect, the second aspect, or the third aspect.

[0112] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, and computer programs are all used to execute the methods provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0113] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium. In some embodiments, the terms communication method, information processing method, information transmission method, etc. can be used interchangeably.

[0114] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0115] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0116] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0117] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0118] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0119] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0120] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0121] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0122] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0123] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0124] In some embodiments, terms such as "...", "determine...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0125] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0126] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0127] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0128] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0129] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0130] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0131] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0132] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0133] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0134] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0135] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0136] As shown in FIG. 1 a , a communication system 101 includes a terminal and a network device 102 .

[0137] In some embodiments, the network device 102 may be an access network device or a core network device.

[0138] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0139] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0140] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0141] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0142] In some embodiments, the core network device may be a single device including a first network element, or may be a plurality of devices or a group of devices, each including a first network element. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0143] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0144] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0145] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0146] In some embodiments, driven by the increasing demand for speed, latency, high-speed mobility, and energy efficiency, coupled with the increasing diversity and complexity of future services, fifth-generation mobile communication technology (5G) has been introduced. The primary application scenarios for 5G are: enhanced mobile ultra-broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine-type communications (mMTC). eMBB continues to focus on providing users with multimedia content, services, and data, and demand for it is growing rapidly. Furthermore, since eMBB can be deployed in diverse scenarios, such as indoors, in urban areas, and in rural areas, its capabilities and requirements vary significantly, making a blanket statement impossible. Detailed analysis is required based on specific deployment scenarios. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), and traffic safety. mMTC's key features include high connection density, low data volumes, latency-insensitive services, low module costs, and a long service life.

[0147] In multimodal services, data usually consists of multiple quality of service (QoS) flows, and the corresponding business volume is very large. Multimodal service flows need to meet certain latency requirements during transmission, especially some data flows need to arrive at the server for decoding at the same time. The delay of any one of the data flows will cause the joint decoding of multiple data flows to fail. However, network scheduling is dynamic. Therefore, in some cases, even if some data flows belong to low-priority logical channels, if some data packets have not been scheduled for a long time, a buffer status report (BSR) needs to be sent to notify the network as soon as possible. However, according to the relevant mechanism, a BSR can only be sent when high-priority logical channel data arrives, which cannot meet the needs of emergency scheduling. Therefore, it is necessary to consider optimizing emergency scheduling in multimodal services.

[0148] In some embodiments, a Delay Status Report (DSR) is introduced. Specifically, a terminal can report a DSR, which carries information related to data transmission delay. For example, information indicating that the remaining time of an uplink data packet is less than a certain threshold due to long-term unscheduled uplink data. The remaining time of a data packet is the time until the packet is discarded. For example, this remaining time can be determined based on the discard timer of the Packet Data Convergence Protocol (PDCP).

[0149] In some embodiments, threshold-based DSR reporting is supported. For example, a DSR report is triggered when the residual delay of a packet data unit (PDU) or a set of PDUs falls below a network-configured threshold. For example, the threshold can be configured at the granularity of a logical channel group (LCG).

[0150] In some embodiments, a plurality of data packets may constitute a PDU set or a packet set due to a certain dependency between the data packets.

[0151] In some embodiments, the PDCP discard timer for a PDU set supports the instance where the PDUs of the PDU set arrive at different times.

[0152] In some embodiments, the network can configure whether the terminal triggers a delay status report, for example, by setting some thresholds for each LCG.

[0153] In some embodiments, when the terminal triggers reporting of delay information for one LCG, the terminal also reports a buffer status associated with the remaining time.

[0154] In some embodiments, for the purpose of Media Access Control (MAC) buffer status reporting, the entity sending PDCP shall consider the following data as PDCP data volume:

[0155] PDCP service data units (SDUs) for which no PDCP data PDUs are constructed;

[0156] PDCP data PDUs that have not yet been submitted to lower layers;

[0157] PDCP control PDU;

[0158] For Acknowledged Mode Data Radio Bearer (AM DRB), the retransmitted PDCP SDU;

[0159] For AM DRB, retransmitted PDCP data PDU.

[0160] For the purpose of MAC Delay Status Reporting, the sending PDCP entity shall consider the following data as the amount of delay-critical PDCP data: PDCP SDUs with a remaining discard timer (discardTimer) value less than a threshold.

[0161] In some embodiments, in PDCP, when the remaining time of a data packet of an SDU service data unit is less than a threshold, a DSR report will be triggered. However, the specific details of the buffer size for data volume reporting have not yet been defined. For example, after the introduction of the concept of packet set, packet discard based on packet set was introduced, that is, if the discard timer of any data packet in a packet set times out, the entire packet set will be discarded. Therefore, for a packet set, when one of the data packets triggers DSR, it is necessary to consider whether to consider the data volume of the entire packet set when reporting the data volume, so that the base station can have a more accurate judgment on the urgency of its scheduling.

[0162] FIG2a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to a communication method for a communication system 100, the method comprising:

[0163] Step S2101: The network device sends second information to the terminal.

[0164] In some embodiments, the terminal receives second information sent by the network device.

[0165] In some embodiments, the second information indicates that the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted.

[0166] In some embodiments, the second information indicates that the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

[0167] In some embodiments, the second information indicates that the remaining time of the first data packet to be transmitted arriving in the packet set is less than or equal to a time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted arriving belongs are the associated data packets to be transmitted.

[0168] In some embodiments, the first data packet to be transmitted is the first data packet to arrive in the packet set.

[0169] It should be noted that step S2101 can be omitted when the terminal determines the associated data packet to be transmitted based on the protocol rule information.

[0170] Step S2102: The terminal determines the associated data packet to be transmitted.

[0171] In some embodiments, the associated data packet to be transmitted is a single data packet to be transmitted. For example, the associated data packet to be transmitted is the first data packet to be transmitted.

[0172] In some embodiments, the associated data packets to be transmitted are data packets to be transmitted determined based on a packet set, where the packet set includes at least one data packet to be transmitted. For example, the associated data packets to be transmitted are a first data packet to be transmitted in the packet set and a second data packet to be transmitted that is associated with the first data packet to be transmitted in the packet set.

[0173] In some embodiments, the associated data packet to be transmitted is a data packet that is associated with the first data packet to be transmitted.

[0174] In some embodiments, the associated data packets to be transmitted are data packets that are associated with the first data packet to be transmitted. The association relationship may include data packets in the same packet set, i.e., only the association within the packet set is considered, or data packets in other packet sets that are different from the first data packet to be transmitted, i.e., the association relationship also includes data packets in other packet sets that are different from the first data packet to be transmitted, i.e., the association relationship also includes the association between packet sets.

[0175] In some embodiments, the associated data packet to be transmitted may be a second data packet to be transmitted in the packet set that is associated with the first data packet to be transmitted.

[0176] In some embodiments, the terminal determines the associated data packet to be transmitted based on protocol rule information.

[0177] In some embodiments, the terminal determines the associated data packet to be transmitted based on network configuration information.

[0178] In some embodiments, the terminal determines that the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and determines all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs as the associated data packets to be transmitted.

[0179] In some embodiments, the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

[0180] In some embodiments, the first data packet to be transmitted is any data packet in the packet set.

[0181] In some embodiments, the first data packet to be transmitted is the first data packet to arrive in the packet set.

[0182] In some embodiments, the terminal determines that the remaining time of the first arriving data packet to be transmitted in the packet set is less than or equal to a time threshold, and determines that all data packets to be transmitted in the packet set to which the first arriving data packet to be transmitted belongs are the associated data packets to be transmitted.

[0183] In some embodiments, the terminal determines the associated data packet to be transmitted based on the received second information.

[0184] In some embodiments, the terminal determines that the network configuration has a packet loss mode based on a packet set, and determines that the protocol rule information and / or the network configuration information is effective.

[0185] In some embodiments, the associated data packet to be transmitted is a PDCP service data unit (SDU) and / or a PDCP packet data unit (PDU) associated with a PDCP service data unit (SDU).

[0186] In some embodiments, the SDU may be a PDCP SDU that has not been packaged yet and the remaining time of the PDCP SDU is less than a time threshold.

[0187] In some embodiments, the PDU may be a packetized data PDU (eg, PDCP Data PDU) that has not been transmitted to the underlying layer (lower protocol layer, such as RLC) and the remaining time corresponding to the data PDU is less than a time threshold.

[0188] In some embodiments, for the AM mode, the SDU includes a PDCP SDU in a reestablishment process, a data recovery process, or an uplink switching process, and the remaining time of the SDU is less than a time threshold.

[0189] In some embodiments, for the AM mode, the PDU includes a PDCP data PDU (eg, a PDCP Data PDU) in a reestablishment process, a data recovery process, or an uplink switching process, and the remaining time of the PDU is less than a time threshold.

[0190] In some embodiments, since the SDU is a data packet received from a higher layer and is associated with a discard timer, the SDU is processed by the PDCP layer and becomes a PDCP Data PDU. At this time, the remaining time corresponding to the PDCP Data PDU is obtained from the discard timer of the associated SDU.

[0191] It should be noted that the data packet to be transmitted may be a PDCP data PDU. The remaining time of the PDCP data PDU being less than the time threshold may be understood as the remaining time of the PDCP SDU corresponding to the PDCP data PDU being less than the time threshold.

[0192] Step S2103: The terminal determines the first information.

[0193] In some embodiments, first information for a DSR of a PDCP layer is determined.

[0194] In some embodiments, the first information indicates a first data amount.

[0195] In some embodiments, the first data amount may be an associated data amount. Here, the data amount determined based on the associated data to be transmitted may be the associated data amount.

[0196] In some embodiments, the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

[0197] In some embodiments, the data amount may be the buffersize of the cache.

[0198] In some embodiments, the first data volume is a data volume of data packets to be transmitted whose remaining time is less than or equal to a time threshold determined from associated data packets to be transmitted.

[0199] In some embodiments, the remaining time is the time from when the data packet to be transmitted in the logical channel is discarded.

[0200] In some embodiments, the remaining time is the time until the data packets to be transmitted in the logical channel group are discarded.

[0201] In some embodiments, the remaining time is the time until the set of data packets to be transmitted in the logical channel is discarded.

[0202] In some embodiments, the remaining time is the time until the set of data packets to be transmitted in the logical channel group is discarded.

[0203] In some embodiments, the PDCP layer may be a PDCP layer of a terminal.

[0204] Step S2104: The terminal sends first information to the network device.

[0205] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0206] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0207] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, and step S2104 can be implemented as an independent embodiment. For example, step S2102 combined with steps S2103 and S2104 can be implemented as an independent embodiment, and step S2103 combined with step S2104 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0208] Figure 3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method, which is executed by a network device. The method includes:

[0209] Step S3101: Send the second information.

[0210] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0211] Step S3102: Obtain first information.

[0212] In some embodiments, the network device receives the first information sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0213] In some embodiments, the network device obtains first information specified by a protocol.

[0214] In some embodiments, the network device obtains the first information from an upper layer(s).

[0215] In some embodiments, the network device performs processing to obtain the first information.

[0216] In some embodiments, step S3102 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0217] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0218] The information indication method involved in the embodiment of the present disclosure may include at least one of step S3101 to step S3102. For example, step S3101 may be implemented as an independent embodiment, and step S3102 may be implemented as an independent embodiment, but is not limited thereto.

[0219] Figure 3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3b, the present disclosure embodiment relates to a communication method, which is executed by a network device. The method includes:

[0220] Step S3201: Receive the first information sent by the terminal.

[0221] In some embodiments, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to a time threshold determined from the associated data packet to be transmitted; the remaining time is the time from the time when the data packet to be transmitted in the logical channel is discarded.

[0222] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0223] In some embodiments, the associated data packet to be transmitted is a data packet to be transmitted determined based on a packet set, and the packet set includes at least one data packet to be transmitted.

[0224] In some embodiments, the method comprises one of the following:

[0225] Determining the associated data packet to be transmitted based on the protocol rule information;

[0226] The associated data packet to be transmitted is determined based on the network configuration information.

[0227] In some embodiments, determining the associated data packet to be transmitted based on the protocol rule information includes:

[0228] It is determined that the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are determined as the associated data packets to be transmitted.

[0229] In some embodiments, determining the associated data packet to be transmitted based on the network configuration information includes:

[0230] receiving second information sent by the network device;

[0231] The associated data packet to be transmitted is determined based on the second information.

[0232] In some embodiments, the second information indicates one of the following:

[0233] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted;

[0234] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

[0235] In some embodiments, the method further comprises:

[0236] It is determined that the network configuration has a packet loss mode based on a packet set, and the protocol rule information and / or the network configuration information are effective.

[0237] In some embodiments, the method further comprises:

[0238] The first information is sent to the network device.

[0239] In some embodiments, the associated data packet to be transmitted is a PDCP service data unit SDU and / or a PDCP packet data unit PDU associated with the PDCP SDU.

[0240] Figure 4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, the embodiment of the present disclosure relates to a communication method, which is executed by a terminal. The method includes:

[0241] Step S4101: Obtain the second information.

[0242] In some embodiments, the terminal obtains the second information sent by the access network device, but is not limited thereto, and may also receive the second information sent by other entities.

[0243] In some embodiments, the terminal obtains second information specified by the protocol.

[0244] In some embodiments, the terminal obtains the second information from an upper layer(s).

[0245] In some embodiments, the terminal performs processing to obtain the second information.

[0246] In some embodiments, step S4101 is omitted, and the terminal autonomously implements the function indicated by the second information, or the above function is default or by default.

[0247] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0248] Step S4102: Determine the associated data packet to be transmitted.

[0249] In some embodiments, the optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0250] Step S4103: The terminal determines the first information.

[0251] In some embodiments, the optional implementation of step S4103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0252] Step S4104: Send the first message.

[0253] In some embodiments, the optional implementation of step S4104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0254] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4101 can be implemented as an independent embodiment, step S4102 can be implemented as an independent embodiment, step S4103 can be implemented as an independent embodiment, and step S4104 can be implemented as an independent embodiment. For example, step S4102 combined with step S4103 and step S4104 can be implemented as an independent embodiment, and step S4103 combined with step S4104 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0255] Figure 4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, the embodiment of the present disclosure relates to a communication method, which is executed by a terminal, and the method includes:

[0256] Step S4201: Receive the first information sent by the terminal.

[0257] In some embodiments, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to a time threshold determined from the associated data packet to be transmitted; the remaining time is the time from the time when the data packet to be transmitted in the logical channel is discarded.

[0258] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0259] In some embodiments, the method further comprises:

[0260] sending second information to the terminal;

[0261] The second information is used to determine the associated data packet to be transmitted.

[0262] In some embodiments, the second information indicates one of the following:

[0263] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and all data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted;

[0264] The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

[0265] Figure 5a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100. The method includes one of the following steps:

[0266] Step S5101: The terminal sends first information to the network device.

[0267] In some embodiments, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to a time threshold determined from the associated data packet to be transmitted; the remaining time is the time from the time when the data packet to be transmitted in the logical channel is discarded.

[0268] The optional implementation of step S5101 can refer to the optional implementation of steps S2101 to S2104 in Figure 2a, and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0269] In some embodiments, the above method may include methods of embodiments on the terminal side, network device side, etc., which will not be repeated here.

[0270] In some embodiments, a solution for Delay Status Reporting (DSR) is provided.

[0271] In some embodiments, the terminal detects that a specific data packet or a set of data packets exists in a logical channel or a logical channel group, and the remaining time of the data packet is less than a predetermined threshold.

[0272] In some embodiments, the PDCP layer determines the amount of associated data reported by the DSR based on protocol agreement or network configuration rules.

[0273] In some embodiments, the DSR associated data volume (corresponding to the first data volume) is the data volume size when the remaining time of the associated data packet calculated by the PDCP layer is less than a threshold (including being equal to the threshold).

[0274] In some embodiments, the remaining time may be the time until a discard timer (discardTimer) times out. After the discardTimer times out, the data packet will not have a chance to be transmitted again and will be discarded.

[0275] In some embodiments, based on protocol agreed rules, the PDCP layer determines the size of the associated data reported by the DSR, wherein the DSR associated data size (corresponding to the first data size) is the size of the associated data packet whose remaining time calculated by the PDCP layer is less than a threshold.

[0276] There are two ways to collect statistics on associated data packets:

[0277] Method 1: Ignoring the correlation between the data packet (or data packet to be transmitted) and the data packets in the data packet set, only a single data packet is counted;

[0278] For example:

[0279] When the PDCP layer determines that the remaining discardTimer value of any data packet in a Packet Set is less than the time threshold, the PDCP layer only needs to count the data volume of the data packet as the associated data volume reported by the DSR when determining the size of the associated data volume reported by the DSR.

[0280] Method 2: Considering the correlation between a data packet and a data packet set (Packet Set) or between data packets in a set, some and / or all data packets in the packet set are counted.

[0281] In some embodiments, when the PDCP layer determines that the remaining discardTimer value of any data packet in a Packet set is less than the time threshold, the PDCP layer needs to count the data volume of all data packets in the Packet set to which the data packet belongs as the associated data volume reported by the DSR when determining the size of the associated data volume reported by the DSR.

[0282] In some embodiments, when the PDCP layer determines that the first arriving data packet in a Packet set has remaining discardTimer values ​​less than a time threshold, the PDCP layer needs to count the data volume of all data packets in the Packet set to which the data packet belongs as the associated data volume reported by the DSR when determining the amount of associated data reported by the DSR.

[0283] In method 2, if the association between data packets and data packets within a packet set or between data packets within a packet set is considered, when the PDCP layer determines that the remaining discardTimer value of the first data packet in a packet set (i.e., any data packet or the first data packet) is less than the time threshold, it can be understood that the remaining discardTimer values ​​of all associated data packets are considered to be less than the time threshold (even if some packets arrive later and their actual remaining discardTimer values ​​are not less than the time threshold). These data packets whose remaining discardTimer values ​​are considered to be less than the time threshold are counted as the amount of associated data reported by the DSR.

[0284] In some embodiments, when the network is configured with packet loss based on the Packet set level, the above rules take effect, that is, when the PDCP layer determines the size of the associated data volume reported by the DSR, it needs to count the data volume of all data packets in the Packet set to which the data packet belongs as the associated data volume reported by the DSR.

[0285] In some embodiments, when pdu-SetDiscard is configured, when the PDCP layer determines that the remaining discardTimer values ​​of any data packet in a Packet set are less than the time threshold, the PDCP layer needs to count the data volume of all data packets in the Packet set to which the data packet belongs as the associated data volume reported by the DSR when determining the size of the associated data volume reported by the DSR.

[0286] In some embodiments, when PDU set discard (pdu-SetDiscard) is configured, when the PDCP layer determines that the first arriving data packet in a Packet set has remaining discardTimer values ​​less than the time threshold, when the PDCP layer determines the amount of associated data reported by the DSR, it needs to count the data volume of all data packets in the Packet set to which the data packet belongs as the amount of associated data reported by the DSR.

[0287] In some embodiments, based on network configuration rules, the PDCP layer determines the size of the associated data reported by the DSR.

[0288] In some embodiments, the network configures the terminal so that when the PDCP layer determines that any data packet in a Packet set has remaining discardTimer values ​​less than a time threshold, the PDCP layer can count the data volume of all data packets in the Packet set to which the data packet belongs as the associated data volume reported by the DSR when determining the size of the associated data volume reported by the DSR.

[0289] In some embodiments, the network configures the terminal so that when the PDCP layer determines that the first arriving data packet in a Packet set has remaining discardTimer values ​​less than a time threshold, the PDCP layer can count the data volume of all data packets in the Packet set to which the data packet belongs as the associated data volume reported by the DSR when determining the amount of associated data reported by the DSR.

[0290] In some embodiments, the network configures the terminal to only instruct that the data volume of the data packet be counted as the associated data volume reported by the DSR.

[0291] In some embodiments, the PDCP layer determines the size of the associated data reported by the DSR.

[0292] In some embodiments, through method 1 or method 2, after the PDCP layer determines the associated data packets reported by the DSR (which may include one data packet or multiple data packets, that is, data packets with an associated relationship belonging to the same data set or different data sets in method 2, that is, the associated data packets calculated by the PDCP layer may be a list), for one or each data packet (PDCP SDU) in the associated data packets (list) calculated by the PDCP layer, it is considered that the remaining discardTimer values ​​are less than the time threshold. When the PDCP layer determines the amount of associated data reported by the DSR, it counts the SDU and / or the PDCP data PDU associated with the SDU.

[0293] It should be noted that, in the following embodiments, the first data volume is the data volume that needs to be counted to implement DSR, and the second data volume is the data volume that needs to be counted to implement BSR.

[0294] In some embodiments:

[0295] For the purpose of a Media Access Control (MAC) buffer status report (BSR), the entity sending the PDCP shall regard at least one of the following data as the PDCP data volume (corresponding to the second data volume):

[0296] PDCP service data units (SDUs) for which no PDCP data PDUs are constructed;

[0297] PDCP data PDUs that have not yet been submitted to lower layers;

[0298] PDCP control PDU;

[0299] For Acknowledged Mode Data Radio Bearer (AM DRB), the retransmitted PDCP SDU;

[0300] For AM DRB, retransmitted PDCP data PDU.

[0301] In some embodiments:

[0302] For the purpose of MAC delay status reporting, the entity sending PDCP should regard the following data as delay-critical PDCP data volume or DSR-associated data volume (first data volume), namely: PDCP SDUs with remaining discard timer (discardTimer) values ​​less than the threshold and the corresponding PDCP data PDU statistics as the first data volume.

[0303] In some embodiments, if pdu-SetDiscard is configured, for a PDCP SDU, when the remaining discardTimer value is less than the time threshold of the PDCP SDU, the sending PDCP entity should consider all PDCP SDUs belonging to the PDU set and the corresponding PDCP data PDUs when calculating the delay-critical PDCP data volume or the DSR-associated data volume, that is, count these data volumes as the first data volume.

[0304] In some embodiments, for the purpose of MAC delay status reporting, the entity sending the PDCP shall consider at least one of the following data as the delay-critical PDCP data amount or the DSR-associated data amount (corresponding to the first data amount):

[0305] PDCP SDUs that have not been constructed with PDCP data PDUs and whose remaining discardTimer value is less than the time threshold;

[0306] PDCP data PDU that has not yet been submitted to the lower layer, and the remaining discardTimer value is less than the time threshold; it should be noted that the lower layer in the present disclosure corresponds to the lower protocol layer of the protocol stack.

[0307] For an AM DRB, the PDCP SDU will be retransmitted and the remaining discardTimer value for this PDCP SDU is less than the time threshold;

[0308] For an AM DRB, the PDCP data PDU is to be retransmitted, and for this PDCP data PDU, the remaining discardTimer value is less than the time threshold.

[0309] The above remaining discardTimer values ​​less than the time threshold may include the actual discardTimer value being less than the time threshold; it may also be considered that the discardTimer value is less than the time threshold; for example, the data packets with associated relationships explained above may have some data packets arriving later, and their discardTimer values ​​are not less than the time threshold; but because the discardTimer values ​​of some of the data packets are less than the time threshold; then the data packets with associated relationships are all considered to have discardTimer values ​​less than the time threshold.

[0310] In some embodiments, the remaining discardTimer value (corresponding to the remaining time) of the PDCP data PDU being less than the time threshold can be understood as the remaining discardTimer value of the PDCP SDU corresponding to the PDCP data PDU being less than the time threshold.

[0311] In some embodiments, if a MAC entity detects that multiple packets on a logical channel have a remaining discardTimer value (corresponding to the remaining time) less than a time threshold, the delay information (Delay info) included in the DSR report is calculated according to the protocol, such as by calculating the minimum, maximum, or average of the remaining discardTimer values ​​of the multiple packets. For example, if two packets on the same logical channel have a remaining discardTimer value (corresponding to the remaining time) less than a time threshold (10ms), and packet 1 has a remaining discardTimer value (corresponding to the remaining time) of 2ms, while packet 2 has a remaining discardTimer value (corresponding to the remaining time) of 5ms, then the minimum remaining discardTimer value of 2ms (the minimum remaining time of all packets) may be used to report to the network, even though the amount of data reported at this time is the sum of the data amounts of all packets whose remaining discardTimer values ​​(corresponding to the remaining time) are less than the time threshold. For example, reporting 5ms is reporting the larger value, while reporting 3.5ms is reporting the average value.

[0312] In some embodiments, for a MAC entity, if it is detected that multiple data packets on multiple logical channels of a logical channel group have a remaining discardTimer value (corresponding to the remaining time) less than a time threshold, then when performing a DSR report, the delay information (Delay info) reported by the DSR is calculated according to the protocol agreement, such as calculating the minimum, maximum, or average remaining discardTimer value of multiple data packets across the logical channels. For example, if a data packet on a logical channel has a remaining discardTimer value (corresponding to the remaining time) less than the time threshold (10ms), its remaining discardTimer value (corresponding to the remaining time) is 2ms, while a data packet 2 on another logical channel has a remaining discardTimer value (corresponding to the remaining time) of 5ms; then, when the DSR is finally reported, it can be reported to the network according to the minimum 2ms (the minimum remaining time of all data packets), even though the amount of data reported at this time is the sum of the data amounts of all data packets whose remaining discardTimer values ​​(corresponding to the remaining time) are less than the time threshold. For example, reporting 5ms is based on the larger value. The reported time of 3.5ms is based on the average value.

[0313] The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device or a core network device) in any of the above methods.

[0314] It should be understood that the division of the various units or modules in the above devices is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0315] In the embodiments of the present disclosure, a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0316] Figure 6a is a schematic diagram of the structure of a network device provided in an embodiment of the present disclosure. As shown in Figure 6a, network device 6100 includes: a transceiver module 6101 and a processing module 6102; the transceiver module 6101 is configured to send information; and the processing module 6102 is configured to perform operations. Optionally, the transceiver module 6101 is used to perform the steps related to information transmission and reception performed by the network device 6100 in any of the above communication methods, which are not further described here. Optionally, the processing module 6102 is used to perform the steps related to information processing performed by the network device in any of the above communication methods, which are not further described here.

[0317] Figure 6b is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure. As shown in Figure 6b, terminal 6200 includes: a transceiver module 6201 and a processing module 6202; the transceiver module 6201 is configured to receive information; and the processing module 6202 is configured to perform operations. Optionally, transceiver module 6201 is used to perform the steps related to information transmission and reception performed by terminal 6200 in any of the above communication methods, which are not repeated here. Optionally, processing module 6202 is used to perform the steps related to information processing performed by the terminal in any of the above communication methods, which are not repeated here.

[0318] Figure 7a is a schematic diagram of the structure of a communication device 8100 provided in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device or a core network device), a terminal (e.g., a user device), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above information indication methods. Communication device 8100 can be used to implement the information indication method described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0319] As shown in Figure 7a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 8101 is used to call instructions to enable the communication device 8100 to execute any of the above communication methods.

[0320] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0321] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the communication steps such as sending and receiving in the above method are performed by the transceiver 8103, and the other steps are performed by the processor 8101.

[0322] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0323] Optionally, the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102. The interface circuits 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuits 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0324] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0325] FIG7 b is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0326] The chip 8200 includes one or more processors 8201 , and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above communication methods.

[0327] In some embodiments, chip 8200 further includes one or more interface circuits 8202, which are connected to memory 8203. Interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and can be used to send signals to memory 8203 or other devices. For example, interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0328] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0329] The present disclosure also provides a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0330] The present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above communication methods. Optionally, the program product is a computer program product.

[0331] The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any one of the above communication methods.

[0332] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0333] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A delay status reporting method, characterized in that: The method is executed by a terminal, and includes: Determine first information for reporting a delay status DSR of a packet data convergence protocol PDCP layer; The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

2. The method according to claim 1, characterized in that The first data volume is the data volume of the data packets to be transmitted whose remaining time is less than or equal to the time threshold determined from the associated data packets to be transmitted.

3. The method according to claim 2, characterized in that The associated data packet to be transmitted is a data packet to be transmitted determined based on a packet set, and the packet set includes at least one data packet to be transmitted.

4. The method according to claim 2, characterized in that: The method comprises one of the following: Determine the associated data packet to be transmitted based on the protocol rule information; The associated data packet to be transmitted is determined based on the network configuration information.

5. The method according to claim 4, characterized in that The determining the associated data packet to be transmitted based on the protocol rule information includes: It is determined that the remaining time of the first data packet to be transmitted in the packet set is less than or equal to a time threshold, and all the data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are determined as the associated data packets to be transmitted.

6. The method according to claim 4, characterized in that The determining the associated data packet to be transmitted based on the network configuration information includes: receiving second information sent by the network device; The associated data packet to be transmitted is determined based on the second information.

7. The method according to claim 6, characterized in that The second information indicates one of the following: The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and all the data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted; The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

8. The method according to claim 5 or 6, characterized in that: The method further comprises: It is determined that the network configuration has a packet loss mode based on a packet set, and it is determined that the protocol rule information and / or the network configuration information is effective.

9. The method according to claim 1, characterized in that: The method further comprises: The first information is sent to a network device.

10. The method according to claim 1, characterized in that The associated data packet to be transmitted is a PDCP service data unit SDU and / or a PDCP packet data unit PDU associated with the PDCP SDU.

11. A delay status reporting method, characterized in that: The method is performed by a network device, and the method includes: receiving first information sent by a terminal; Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the number of data packets to be transmitted whose remaining time is less than or equal to a time threshold.

12. The method according to claim 11, characterized in that The first data volume is the data volume of the data packets to be transmitted whose remaining time is less than or equal to the time threshold determined from the associated data packets to be transmitted.

13. The method according to claim 12, characterized in that The associated data packet to be transmitted is a data packet to be transmitted determined based on a packet set, and the packet set includes at least one data packet to be transmitted.

14. The method according to claim 11, characterized in that The method further comprises: Sending second information to the terminal; The second information is used to determine the associated data packet to be transmitted.

15. The method according to claim 14, characterized in that The second information indicates one of the following: The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and all the data packets to be transmitted in the packet set to which the first data packet to be transmitted belongs are the associated data packets to be transmitted; The remaining time of the first data packet to be transmitted in the packet set is less than or equal to the time threshold, and the first data packet to be transmitted is the associated data packet to be transmitted.

16. A delay status reporting method, characterized in that: The method comprises: The terminal sends first information to the network device; The first information is information determined for a delay status report DSR of a packet data convergence protocol PDCP layer; The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

17. A terminal, characterized in that: The terminal comprises: The processing module is configured as follows: Determine first information for reporting a delay status DSR of a packet data convergence protocol PDCP layer; The first information indicates a first data volume; the first data volume is the data volume of a data packet to be transmitted whose remaining time is less than or equal to a time threshold.

18. A network device, characterized in that: The network equipment includes: The transceiver module is configured as follows: receiving first information sent by a terminal; Among them, the first information is information determined for the Delay Status Report DSR of the Packet Data Convergence Protocol PDCP layer; the first information indicates a first data volume; the first data volume is the data volume of the data packet to be transmitted whose remaining time is less than or equal to the time threshold.

19. A communication system, characterized in that: The communication system comprises a terminal and a network device, wherein the terminal is used to execute the method according to any one of claims 1 to 10; and the network device is used to execute the method according to any one of claims 11 to 15.

20. A terminal, characterized in that: The terminal comprises: memory, including executable instructions; one or more processors; When the executable instructions are executed by the processor, the terminal executes the method according to any one of claims 1 to 10.

21. A network device, characterized in that: The network equipment includes: memory, including executable instructions; one or more processors; When the executable instructions are executed by the processor, the network device executes the method according to any one of claims 11 to 15.

22. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the method according to any one of claims 1 to 10 or claims 11 to 15.

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