Method for sending and receiving DSR, terminal, network device, system, and medium

Abstract

The present disclosure relates to a method for sending and receiving a DSR, a terminal, a network device, a system, and a medium. The method comprises: a terminal sends a DSR to a network device, the DSR comprising an index, the index having a mapping relationship with a DSR data volume, and the DSR data volume comprising: a data volume corresponding to a data packet to be discarded after the remaining time that is less than a threshold. In the method of the present disclosure, a terminal sends a DSR to a network device to accurately report DSR data volumes corresponding to different indexes, so that the network device can accurately know, on the basis of the DSR, the data volume of a data packet to be discarded after the remaining time that is less than a threshold, and thus the network device can perform scheduling on the basis of the data volume. In the reporting, the terminal does not need to report excessive data volumes, so that resources of the network device during scheduling can be conserved.

Description

Method, terminal, network device, system and medium for sending and receiving DSR Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, terminal, network device, system, and medium for sending and receiving DSR. Background Art

[0002] The Packet Data Convergence Protocol (PDCP) layer introduces a packet discard mechanism. When the corresponding timer for the relevant data expires, the PDCP entity can discard the timed-out data packet. In addition, when some data packets have not been scheduled for a long time, the terminal can notify the network device by sending a Delay Status Report (DSR) to the network device.

[0003] Summary of the Invention

[0004] In a related method, a Buffer Status Report (BSR) is used to report the DSR data volume, but the accuracy is poor. There is still a lack of a method for reporting the DSR data volume with high accuracy in DSR reporting.

[0005] The present disclosure relates to a method, terminal, network device, system and medium for sending and receiving DSR.

[0006] In a first aspect, an embodiment of the present disclosure provides a method for sending a Delay Status Report (DSR), the method comprising:

[0007] The terminal sends a DSR to the network device, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discard is less than a threshold.

[0008] In a second aspect, an embodiment of the present disclosure provides a method for receiving a DSR, the method comprising:

[0009] The network device receives a DSR sent by a terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discard is less than a threshold.

[0010] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0011] The transceiver module is used to send a DSR to a network device. The DSR includes an index, and the index has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

[0012] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0013] The transceiver module is used to receive the DSR sent by the terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

[0014] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0015] Memory;

[0016] one or more processors;

[0017] and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in the first aspect is implemented.

[0018] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0019] Memory;

[0020] one or more processors;

[0021] and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in the second aspect is implemented.

[0022] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0023] The terminal is configured to implement the communication processing method according to the first aspect;

[0024] The network device is configured to implement the method described in the second aspect.

[0025] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0026] When the instruction is executed on a communication device, the communication device is caused to execute the method according to the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0028] FIG1a is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0029] FIG1b is a schematic diagram of a protocol layer structure according to an embodiment of the present disclosure;

[0030] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0031] FIG2 b is a schematic diagram of the format of DSR corresponding signaling provided according to an embodiment of the present disclosure;

[0032] 3a to 3c are schematic flow diagrams of a method performed by a terminal according to an embodiment of the present disclosure;

[0033] 4a to 4c are flowcharts of methods performed by a network device according to an embodiment of the present disclosure;

[0034] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0035] FIG5b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0036] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0037] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The present disclosure relates to a method, terminal, network device, system and medium for sending and receiving DSR.

[0039] In a first aspect, an embodiment of the present disclosure provides a method for sending a Delay Status Report (DSR), the method comprising:

[0040] The terminal sends a DSR to the network device. The DSR includes an index. The index has a mapping relationship with the DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discard is less than a threshold.

[0041] In the above embodiment, the terminal accurately reports the DSR data volume corresponding to different indexes by sending a DSR to the network device. This allows the network device to accurately determine the amount of data for which the remaining time before packet discard is less than a threshold based on the DSR, facilitating scheduling based on this amount of data. This reporting eliminates the need for the terminal to report excessive amounts of data, saving network device resources during scheduling.

[0042] In conjunction with the embodiment of the first aspect, in some embodiments, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max , the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0043] In the above embodiment, a method for generating a DSR data amount series in a mapping relationship is defined. The generation method can be a method for a protocol to generate a mapping relationship, a method for a network device to generate a mapping relationship, or a method for a terminal to generate a mapping relationship, thereby improving the flexibility of obtaining DSR data amount.

[0044] In combination with the embodiments of the first aspect, in some embodiments, the number N is determined based on the number of bits used to indicate the amount of data in the DSR.

[0045] In the above embodiment, different numbers of bits correspond to different N, so that the corresponding amount of data can be determined.

[0046] In conjunction with the embodiment of the first aspect, in some embodiments, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0047] In the above embodiment, the DSR data volume is used to indicate the data volume whose remaining time before packet discard is less than the threshold, so the data volume does not need to be indicated as 0 in the mapping relationship reported by the terminal, so as to reduce unnecessary reporting and save DSR resources.

[0048] In conjunction with the embodiments of the first aspect, in some embodiments, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0049] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0050] In the above embodiment, a method of determining a data amount series by using an exponential algorithm is illustrated. Based on this method, the data amounts corresponding to different indexes can be determined, thereby determining a mapping relationship.

[0051] In conjunction with the embodiments of the first aspect, in some embodiments, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0052] in, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0053] In the above embodiment, a method of determining a data amount series by using a linear algorithm is illustrated. Based on this method, the data amounts corresponding to different indexes can be determined, thereby determining a mapping relationship.

[0054] In combination with the embodiments of the first aspect, in some embodiments, the mapping relationship is defined through a protocol.

[0055] In the above embodiment, the above mapping relationship may be defined by a protocol, so that the terminal may report the DSR according to the mapping relationship defined by the protocol.

[0056] In combination with the embodiments of the first aspect, in some embodiments, the mapping relationship is configured by the network device.

[0057] In the above embodiment, the terminal can report the DSR according to the mapping relationship configured by the network device, so as to flexibly configure the mapping relationship applicable to different terminals.

[0058] In conjunction with the embodiments of the first aspect, in some embodiments, when the mapping relationship is configured by the network device, the method further includes:

[0059] The terminal receives configuration information sent by the network device, where the configuration information includes at least one of the following:

[0060] Minimum data volume B min ;

[0061] The maximum amount of data B max ;

[0062] First algorithm.

[0063] In the above embodiment, the terminal can generate a mapping relationship according to the configuration information sent by the network device, thereby improving the flexibility of obtaining the mapping relationship.

[0064] In combination with the embodiments of the first aspect, in some embodiments, the configuration information is sent via radio resource control RRC signaling or medium access control element MAC CE.

[0065] In the above embodiment, the terminal can receive configuration information sent by the network device through RRC signaling or MAC CE to obtain the mapping relationship or parameters related to the mapping relationship configured by the network device, so as to report the appropriate DSR according to the configuration of the network device.

[0066] In combination with the embodiments of the first aspect, in some embodiments, the granularity of the configuration information is a logical channel group (LCG).

[0067] In the above embodiment, the configuration information configured by the network device is based on LCG granularity, so that the terminal determines the corresponding data volume according to different LCGs.

[0068] In combination with the embodiments of the first aspect, in some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the mapping relationship.

[0069] In the above embodiment, the mapping relationship can be indicated by the relevant information field in the DSR, so that the network device can know whether there is data that needs to be scheduled in a timely manner based on the information in the second information field.

[0070] In combination with the embodiments of the first aspect, in some embodiments, the remaining time is determined according to a packet discard timer configured in the network device.

[0071] In the above embodiment, the terminal can determine the remaining time for the data packet to be discarded according to the packet discard timer, so as to initiate DSR reporting in time, which facilitates timely scheduling of network devices.

[0072] In combination with the embodiments of the first aspect, in some embodiments, the threshold is configured by the network device.

[0073] In the above embodiment, the threshold may be used to instruct the terminal to report the DSR at an appropriate time.

[0074] In a second aspect, an embodiment of the present disclosure provides a method for receiving a DSR, the method comprising:

[0075] The network device receives a DSR sent by the terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discard is less than a threshold.

[0076] In the above embodiment, the network device receives the DSR sent by the terminal and accurately determines the amount of data for which the remaining time before packet discard is less than a threshold based on the DSR, facilitating scheduling based on this amount of data. The terminal does not need to report excessive amounts of data during this reporting, thus conserving network device resources during scheduling.

[0077] In conjunction with the embodiment of the second aspect, in some embodiments, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max , the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0078] In combination with the embodiments of the second aspect, in some embodiments, the number N is determined based on the number of bits used to indicate the amount of data in the DSR.

[0079] In conjunction with the embodiment of the second aspect, in some embodiments, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0080] In conjunction with the embodiments of the second aspect, in some embodiments, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0081] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0082] In conjunction with the embodiments of the second aspect, in some embodiments, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0083] in, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0084] In combination with the embodiments of the second aspect, in some embodiments, the mapping relationship is defined through a protocol.

[0085] In combination with the embodiments of the second aspect, in some embodiments, the mapping relationship is configured by the network device.

[0086] In conjunction with the embodiments of the second aspect, in some embodiments, when the mapping relationship is configured by the network device, the method further includes:

[0087] The network device sends configuration information to the terminal. The configuration information includes at least one of the following:

[0088] Minimum data volume B min ;

[0089] The maximum amount of data Bmax ;

[0090] First algorithm.

[0091] In combination with the embodiments of the second aspect, in some embodiments, the configuration information is sent via RRC signaling or MAC CE.

[0092] In combination with the embodiments of the second aspect, in some embodiments, the granularity of the configuration information is LCG.

[0093] In combination with the embodiments of the second aspect, in some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the mapping relationship.

[0094] In combination with the embodiments of the second aspect, in some embodiments, the remaining time is determined according to a packet discard timer configured on the network device.

[0095] In combination with the embodiments of the second aspect, in some embodiments, the threshold is configured by the network device.

[0096] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0097] The transceiver module is used to send a DSR to a network device. The DSR includes a mapping relationship between an index and a DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discard is less than a threshold.

[0098] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0099] The transceiver module is used to receive the DSR sent by the terminal, wherein the DSR includes a mapping relationship between an index and a DSR data volume, and the DSR data volume includes: a data volume corresponding to a data packet whose remaining time from packet discard is less than a threshold.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0105] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0106] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to 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 above is also applicable when there are more branches such as A, B, and C.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0111] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0112] 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.

[0113] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0114] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0115] In some embodiments, in some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP))", "panel (panel)", "antenna panel (antenna panel)", "antenna array (antenna array)", "cell (cell)", "macro cell (macro cell)", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell)", "serving cell (cell)", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part, BWP)" and the like can be used interchangeably.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0120] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0121] 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.

[0122] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0123] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

[0124] In some embodiments, the terminal 101 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.

[0125] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0126] In some embodiments, the access network device is, 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 wireless fidelity (WiFi) system, but is not limited thereto.

[0127] 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.

[0128] 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.

[0129] In some embodiments, a core network device may be a single device comprising one or more network elements, or may be a plurality of devices or a group of devices, each comprising all or part of one or more network elements. A 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).

[0130] 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.

[0131] 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.

[0132] FIG1b is a schematic diagram of a protocol layer structure according to an embodiment of the present disclosure.

[0133] As shown in Figure 1b, the communication between network device 102 and terminal 101 follows a certain protocol layer structure. The control plane protocol layer structure can include the functions of the radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, and physical layer (PHY) layer. The user plane protocol layer structure can include the functions of the PDCP layer, RLC layer, MAC layer, and physical layer layer.

[0134] 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).

[0135] In the embodiment of the present disclosure, the network device 102 can configure a packet discard timer (discardTimer) for the PDCP entity. When the transmitting PDCP entity receives a PDCP Service Data Unit (PDCP SDU) from a higher layer, the corresponding discardTimer will be started for the PDCP SDU. If the discardTimer of a PDCP SDU times out, the transmitting PDCP entity will discard the PDCP SDU and the corresponding PDCP Data Protocol Data Unit (PDCP Data PDU). If the corresponding PDCP Data PDU has been sent to the RLC layer for processing, the PDCP will send a discard operation indication to the RLC layer.

[0136] In the disclosed embodiments, the MAC layer defines a mechanism for reporting the Base Response (BSR), which contains information about the uplink data volume in the MAC entity. The data volume reported in the BSR is the sum of all data volumes in the LCG after the MAC PDU is generated, i.e., after the Logical Channel Priority (LCP) process is executed.

[0137] The data volume reported in a DSR differs from the data volume reported in a BSR. The data volume reported in a DSR is the amount of data for which the remaining time before packet discard is less than a network-configured threshold. Therefore, the data volume reported in a DSR is typically smaller than the data volume reported in a BSR. Furthermore, even if the data volume reported in a DSR is large, given that the network previously did not provide sufficient resources to schedule terminal 101 to transmit this data, the likelihood that network device 102 would be able to schedule this large amount of data before terminal 101 discards the packet is low. Therefore, reporting a large amount of data in a DSR does not significantly assist network scheduling.

[0138] Since the data volume reported by DSR and BSR is different, if the BSR reporting method (such as BSR table) is used to report the DSR data volume, it may not be accurate enough, resulting in resource waste during network scheduling.

[0139] FIG2a is an interactive diagram illustrating a method for sending and receiving a DSR according to an embodiment of the present disclosure. As shown in FIG2a , an embodiment of the present disclosure relates to a method for sending and receiving a DSR, the method comprising:

[0140] In step S2101 , the network device 102 sends configuration information to the terminal 101 .

[0141] In some embodiments, the configuration information may be used to configure a mapping relationship between an index and a DSR data volume, such as configuring a mapping table applicable to DSR data.

[0142] Optionally, the DSR data volume includes: the data volume corresponding to the data packets whose remaining time before packet discard is less than a threshold.

[0143] Optionally, the data packet may include a data packet of the PDCP layer, a data packet of the MAC layer, etc.

[0144] In some embodiments, the configuration information may be used to configure parameters related to generating a mapping relationship or a DSR data volume.

[0145] Optionally, the configuration information includes at least one of the following:

[0146] Minimum data volume B min ;

[0147] The maximum amount of data B max ;

[0148] First algorithm.

[0149] Optionally, the data volume can range from a minimum value of B min To the maximum value B max between.

[0150] Optionally, the first algorithm may be an exponential algorithm or a linear algorithm.

[0151] In one example, the network device 102 may be configured to min 、B max And the first algorithm, the terminal 101 generates the DSR data volume and mapping relationship according to the configuration of the network device 102.

[0152] In another example, the network device 102 may configure B min and B max And through the protocol definition of the first algorithm, the terminal 101 generates the DSR data volume and mapping relationship according to the configuration of the network device and the protocol definition.

[0153] In some embodiments, the configuration information is sent via RRC signaling or a Media Access Control Control Element (MAC CE).

[0154] Optionally, the network device 102 sends configuration information to the terminal 101 through RRC signaling, such as configuration in the MAC entity, that is, the configuration information is included in the IE MAC-CellGroupConfig.

[0155] Optionally, the granularity of the configuration information is LCG. For example, when configured in a MAC entity, the configuration information may include a mapping relationship of each LCG in the MAC entity, such as an index corresponding to each LCG or a DSR data volume.

[0156] In some embodiments, terminal 101 receives the configuration information.

[0157] In some embodiments, step S2101 may be omitted.

[0158] Optionally, a mapping relationship is defined through a protocol, such as defining a mapping table applicable to DSR data, in which case step S2101 can be omitted.

[0159] In step S2102 , the terminal 101 sends a DSR to the network device 102 .

[0160] In some embodiments, the DSR includes an index, and the index has a mapping relationship with the DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discard is less than a threshold.

[0161] Optionally, the remaining time is determined according to a packet discard timer configured by the network device 102 .

[0162] For example, the network device 102 may configure a corresponding packet discard timer for a data packet. When the timer times out (eg, the remaining time is 0), the corresponding data packet will be discarded.

[0163] Optionally, the threshold is configured by the network device 102 .

[0164] For example, the network device 102 may configure a threshold (remainingTimeThreshold) for the terminal 101 through RRC signaling, where the threshold is the threshold of the remaining time of UL data configured by the LCG to trigger the DSR.

[0165] Optionally, the MAC entity triggers DSR when the remaining time of a PDU in the LCG is less than its associated remaining time threshold.

[0166] In some embodiments, the DSR is used to provide network device 102 with information about the delay status of UL data. For example, the DSR includes the remaining time corresponding to a data packet and the amount of data associated with the reported remaining time. The amount of data may be indicated by an index. The remaining time is based on the value of the packet drop timer associated with the amount of data at the time of the first symbol of the PUSCH transmission used to send the DSR.

[0167] In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the data amount.

[0168] Optionally, taking the example of terminal 101 sending a DSR via a MAC CE, the signaling of the DSR MAC CE may be shown in Figure 2b. The DSR MAC CE includes a first information field and a second information field. The first information field may be a remaining time information field (Delay Info) used to indicate the remaining time; the second information field may be a data volume field (Data Volume) used to indicate the index corresponding to the DSR data volume.

[0169] Optionally, the length of the first information field may be 4 bits, and the length of the second information field may be 8 bits.

[0170] Optionally, the DSR MAC CE may also include an LCG i The field is used to indicate whether there is remaining time information and data volume information corresponding to logical channel group i in the DSR MAC CE. For example, when LCG i When the value of the field is 1, it indicates that the remaining time information and data volume information corresponding to the logical channel group i are reported; when LCG i When the value of the field is 0, it indicates that the remaining time information and data volume information corresponding to the logical channel group i are not reported.

[0171] Optionally, the index or data volume reported in the second information field is determined according to the mapping relationship of the embodiment of the present disclosure.

[0172] In some embodiments, when the network device 102 determines the mapping relationship, or the protocol determines the mapping relationship, or the terminal 101 determines the mapping relationship according to the configuration of the network device 102 and / or the protocol definition, it can be determined based on a certain number series generation algorithm.

[0173] In some embodiments, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max , the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0174] Optionally, the first algorithm includes an exponential algorithm or a linear algorithm.

[0175] Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

[0176] Among them, N is used to indicate the maximum index value in the mapping relationship, and can also indicate the value from B min to B maxAssume the number of bits is x, N = 2 x For example, if the number of bits used to indicate the amount of data in the DSR is 5 bits, then N is 31; for another example, if the number of bits used to indicate the amount of data in the DSR is 8 bits, then N is 255.

[0177] In the mapping relationship, index 0 can be used to indicate that the data volume is 0, and the maximum index value such as 31 or 255 can be used to indicate that the data volume is greater than B. max .

[0178] Optionally, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0179] The data volume reported in the DSR is the data volume for which the remaining time before packet discard is less than the threshold configured by the network. Therefore, a data volume of 0 does not need to be indicated.

[0180] The first value may be a value configured by a network device or defined by a protocol. Referring to the example in Table 1, when a 5-bit value indicates the amount of data, the first value may be configured or defined as 100.

[0181] Optionally, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0182] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0183] Optionally, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0184] in, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0185] In one example, taking the number of bits used to indicate the amount of data in the DSR as 5 bits, an exponential algorithm is used and B min =100 bytes, B max =100000Bytes, N=31, the relationship between the index and the corresponding data volume is shown in Table 1 below:

[0186] Table 1

[0187] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0188] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0189] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0190] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0191] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0192] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0193] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0194] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0195] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0196] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0197] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2102. For example, step S2102 may be implemented as an independent embodiment, but is not limited thereto.

[0198] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0199] FIG3a is a flow chart of a method for sending a DSR according to an embodiment of the present disclosure. As shown in FIG3a , an embodiment of the present disclosure relates to a method for sending a DSR, which is executed by terminal 101 and includes:

[0200] Step S3101, obtain configuration information.

[0201] Optionally, optional implementations of step S3101 can refer to step S2101 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0202] Optionally, the terminal 101 may obtain configuration information from the network device 102 or other entities.

[0203] Step S3102, send DSR.

[0204] Optionally, optional implementations of step S3102 can refer to step S2102 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0205] Optionally, the terminal 101 may send a DSR to the network device 102 or other entities.

[0206] The method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3102. For example, step S3102 may be implemented as an independent embodiment, but is not limited thereto.

[0207] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 a .

[0208] FIG3b is a flow chart of a method for sending a DSR according to an embodiment of the present disclosure. As shown in FIG3b , an embodiment of the present disclosure relates to a method for sending a DSR, which is executed by terminal 101 and includes:

[0209] Step S3201, terminal 101 sends DSR to network device 102.

[0210] Optionally, optional implementations of step S3201 can refer to step S2102 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0211] In some embodiments, the index reported in the DSR is mapped to the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packets whose remaining time before packet discard is less than a threshold.

[0212] Optionally, the remaining time is determined according to a packet discard timer configured on the network device.

[0213] Optionally, the threshold is configured for the network device.

[0214] In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

[0215] In some embodiments, the above mapping relationship may be defined by a protocol.

[0216] Optionally, the protocol definition mapping relationship or the method of generating the data quantity series may be based on different first algorithms.

[0217] In some embodiments, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max, the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0218] Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

[0219] Optionally, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0220] In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0221] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0222] In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0223] in, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0224] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0225] FIG3c is a flow chart of a method for sending a DSR according to an embodiment of the present disclosure. As shown in FIG3c, an embodiment of the present disclosure relates to a method for sending a DSR, which is executed by terminal 101 and includes:

[0226] Step S3301 , the terminal 101 receives configuration information sent by the network device 102 .

[0227] Optionally, optional implementations of step S3301 can refer to step S2101 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0228] In some embodiments, the configuration information may be used to configure a mapping relationship, such as a mapping table.

[0229] In some embodiments, the configuration information may be used to configure one or more parameters for generating a mapping relationship, such as the configuration information including at least one of the following:

[0230] Minimum data volume Bmin ;

[0231] The maximum amount of data B max ;

[0232] First algorithm.

[0233] In one example, when configuring the above three items in the configuration information, the terminal 101 can configure the following items according to B min and B max Determine N and generate a mapping relationship based on the configuration.

[0234] In another example, in the configuration information configuration B min and B max When the first algorithm is defined by the protocol, the terminal 101 determines the mapping relationship according to the configuration and the protocol definition.

[0235] In some embodiments, the configuration information is sent via radio resource control RRC signaling or medium access control element MAC CE.

[0236] Optionally, the granularity of the configuration information is a logical channel group LCG.

[0237] In some embodiments, the mapping relationship configured by the network device 102, or the mapping relationship determined by the terminal 101 according to the configuration and / or definition, can refer to the following method:

[0238] Optionally, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max , the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0239] Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

[0240] Optionally, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0241] In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0242] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0243] In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0244] in, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0245] In step S3302 , the terminal 101 sends a DSR to the network device 102 .

[0246] Optionally, optional implementations of step S3302 can refer to step S2102 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0247] In some embodiments, the index reported in the DSR is mapped to the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packets whose remaining time before packet discard is less than a threshold.

[0248] Optionally, the remaining time is determined according to a packet discard timer configured on the network device.

[0249] Optionally, the threshold is configured for the network device.

[0250] In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

[0251] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3c.

[0252] FIG4a is a flow chart of a method for receiving a DSR according to an embodiment of the present disclosure. As shown in FIG4a , an embodiment of the present disclosure relates to a method for receiving a DSR, which is performed by a network device 102 and includes:

[0253] Step S4101, sending configuration information.

[0254] Optionally, optional implementations of step S4101 can refer to step S2101 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0255] Optionally, the network device 102 may send configuration information to the terminal 101 or other entities.

[0256] Step S4102, obtain DSR.

[0257] Optionally, optional implementations of step S4102 can refer to step S2102 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0258] Optionally, the network device 102 may obtain the DSR from the terminal 101 or other entities.

[0259] The method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4102. For example, step S4102 may be implemented as an independent embodiment, but is not limited thereto.

[0260] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0261] FIG4 b is a flow chart of a method for receiving a DSR according to an embodiment of the present disclosure. As shown in FIG4 b , an embodiment of the present disclosure relates to a method for receiving a DSR, which is performed by a network device 102 and includes:

[0262] Step S4201: The network device 102 receives the DSR sent by the terminal 101.

[0263] Optionally, optional implementations of step S4201 can refer to step S2102 in FIG. 2 a and other related parts in the embodiment involved in FIG. 2 a , which will not be described in detail here.

[0264] In some embodiments, the index reported in the DSR is mapped to the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packets whose remaining time before packet discard is less than a threshold.

[0265] Optionally, the remaining time is determined according to a packet discard timer configured on the network device.

[0266] Optionally, the threshold is configured for the network device.

[0267] In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

[0268] In some embodiments, the above mapping relationship may be defined by a protocol.

[0269] Optionally, the protocol definition mapping relationship or the method of generating the data quantity series may be based on different first algorithms.

[0270] In some embodiments, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max , the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0271] Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

[0272] Optionally, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0273] In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0274] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0275] In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0276] in, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0277] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0278] FIG4c is a flow chart of a method for receiving a DSR according to an embodiment of the present disclosure. As shown in FIG4c , an embodiment of the present disclosure relates to a method for receiving a DSR, which is performed by a network device 102 and includes:

[0279] In step S4301 , the network device 102 sends configuration information to the terminal 101 .

[0280] Optionally, optional implementations of step S4301 can refer to step S2101 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0281] In some embodiments, the configuration information may be used to configure a mapping relationship, such as a mapping table.

[0282] In some embodiments, the configuration information may be used to configure one or more parameters for generating a mapping relationship, such as the configuration information including at least one of the following:

[0283] Minimum data volume B min ;

[0284] The maximum amount of data B max;

[0285] First algorithm.

[0286] In one example, when configuring the above three items in the configuration information, the terminal 101 can configure the following items according to B min and B max Determine N and generate a mapping relationship based on the configuration.

[0287] In another example, in the configuration information configuration B min and B max When the first algorithm is defined by the protocol, the terminal 101 determines the mapping relationship according to the configuration and the protocol definition.

[0288] In some embodiments, the configuration information is sent via radio resource control RRC signaling or medium access control element MAC CE.

[0289] Optionally, the granularity of the configuration information is a logical channel group LCG.

[0290] In some embodiments, the mapping relationship configured by the network device 102, or the mapping relationship determined by the terminal 101 according to the configuration and / or definition, can refer to the following method:

[0291] Optionally, the DSR data volume in the mapping relationship is based on the minimum value B of the data volume. min , the maximum amount of data B max , the number N of data between the minimum value and the maximum value and generated by the first algorithm.

[0292] Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

[0293] Optionally, the minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

[0294] In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

[0295] Where p=(B max / B min ) 1 / (N-1) -1, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0296] In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

[0297] in, Bk Indicates the amount of data corresponding to index k, Indicates a round-up operation.

[0298] In step S4302 , the network device 102 receives the DSR sent by the terminal 101 .

[0299] Optionally, optional implementations of step S4302 can refer to step S2102 in FIG2a and other related parts in the embodiment involved in FIG2a, which will not be described in detail here.

[0300] In some embodiments, the index reported in the DSR is mapped to the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packets whose remaining time before packet discard is less than a threshold.

[0301] Optionally, the remaining time is determined according to a packet discard timer configured on the network device.

[0302] Optionally, the threshold is configured for the network device.

[0303] In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

[0304] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4c.

[0305] In the method of the embodiment of the present disclosure, the amount of data reported in the DSR is the amount of data for which the remaining time before packet discard is less than the threshold configured by the network. The range of this amount of data (e.g., B min With B max , especially B max ) and the range of data reported in the BSR are different. First, the data volume reported in the BSR is the sum of all data volumes in the LCG after the LCP process is executed, while the data volume reported in the DSR is the data volume for which the remaining time before packet discard is less than the network-configured threshold. Therefore, the data volume reported in the DSR is typically smaller than the data volume reported in the BSR. Second, the data volume reported in the DSR is the data volume for which the remaining time before packet discard is less than the network-configured threshold. Even if this data volume is large, considering that the network was previously unable to provide sufficient resources to schedule UE data transmission, the likelihood of the network being able to schedule a large amount of data before the UE discards packets is very low. Therefore, reporting a large amount of data in the DSR does not significantly help network scheduling. Therefore, due to the different ranges of data volumes reported by the DSR and BSR, using the BSR table to report the DSR data volume is less accurate, resulting in resource waste during network scheduling.

[0306] The method of the disclosed embodiments proposes that when reporting the amount of data in a DSR, the mapping between the reported index and the corresponding data amount is optimized for the DSR, and the BSR buffer size mapping table (including the BSR table before Rel-18 and the BSR table to be introduced in Rel-18) is not used. This mapping table optimized for the amount of data reported by the DSR improves network scheduling efficiency and thus increases network capacity.

[0307] To facilitate understanding of the embodiments of the present disclosure, some examples are listed below:

[0308] Example 1:

[0309] The relationship between the index reported by the DSR and the corresponding data volume can be a table defined in the protocol, or the relationship between the index and the corresponding data volume can be configured through the network.

[0310] Optionally, the relationship between the index and the corresponding data volume corresponds to the mapping relationship in the aforementioned embodiment.

[0311] Example 2:

[0312] Whether defined by the protocol or configured through the network, the relationship between the index and the corresponding data volume is usually generated by a specific algorithm. The required parameters may include:

[0313] The algorithm for generating the sequence of data corresponding to the index: for example, a linear formula or an exponential formula;

[0314] B min : Minimum value of data volume;

[0315] B max : The maximum amount of data;

[0316] N: From B min to B max The number of values ​​of the amount of data.

[0317] Optionally, the value of N depends on how many bits are used in the DSR to indicate the amount of data. In the existing BSR table of NR, index 0 is used to indicate that the amount of data is 0, and the maximum index value (the maximum index value corresponding to the 5-bit Buffer Status is 31, and the maximum index value corresponding to the 8-bit Buffer Status is 255) is used to indicate that the amount of data > B max .

[0318] Optionally, the data volume reported in the DSR can be similar to that in the BSR, and some optimizations can be made. For example, the data volume reported in the DSR is the data volume for which the remaining time before the packet is discarded is less than the threshold configured by the network, so the data volume of 0 does not need to be indicated. Thus, for the x bit index value, from B min to B max The number of data values ​​N = 2 x For example, for 5-bit and 8-bit index values, N is 31 and 255 respectively.

[0319] When the sequence generation algorithm is exponential, the DSR data volume is generated using the following formula:

[0320] with

[0321] When the sequence generation algorithm is linear, the DSR data volume is generated using the following formula:

[0322] with

[0323] Taking the 5-bit index value as an example, when using the exponential method, B min =100Bytes, B max =100000Bytes, and N=31, the relationship between the index and the corresponding data volume is shown in Table 1.

[0324] Example 3:

[0325] The relationship between the index and the corresponding data volume is configured by the network, either through RRC signaling or through MAC CE. When configured using RRC signaling, it can be configured in the MAC entity (i.e., in the IE MAC-CellGroupConfig) or at the LCG granularity.

[0326] Example 4:

[0327] The network can configure one or more parameters generated by an algorithm based on the relationship between the index and the corresponding data volume.

[0328] For example, the network can configure the algorithm (linear or exponential) that generates the series of data corresponding to the index, B min 、B max The rest of the parameters are specified by the standard. For example, the standard may specify that the generation algorithm is an exponential algorithm, and for 5-bit and 8-bit index values, N is 31 and 255 respectively, and B is configured through signaling. min and B max .

[0329] Example 5:

[0330] Referring to FIG. 2 b , in the DSR MAC CE format, the lengths of the remaining time information (Delay Info field) and the corresponding data volume (Data Volume field) are 4 bits and 8 bits respectively.

[0331] Optionally, LCG i The field indicates whether there is remaining time information and data volume information corresponding to logical channel group i in the DSR MAC CE. i When the value of the field is 1, it indicates that the remaining time information and data volume information corresponding to the logical channel group i are reported, and when LCG i When the value of the field is 0, it indicates that the remaining time information and data volume information corresponding to the logical channel group i are not reported.

[0332] Optionally, data volume information (Data Volume field) is reported according to the relationship between the index and the corresponding data volume in this patent.

[0333] The embodiments of the present disclosure further 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, a core network function node, a core network device, etc.) in any of the above methods.

[0334] It should be understood that the division of the various units or modules in the above device 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 device, 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.

[0335] In the embodiments of the present disclosure, the 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 the 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 and implementing 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.

[0336] Figure 5a is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in Figure 5a, terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. In some embodiments, transceiver module 5101 is configured to send a DSR to a network device. The DSR includes an index that is mapped to a DSR data volume. The DSR data volume includes the data volume corresponding to packets whose remaining time until packet discard is less than a threshold.

[0337] Optionally, the transceiver module 5101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the terminal 101 in any of the above methods, which will not be described in detail here.

[0338] Figure 5b is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. As shown in Figure 5b, network device 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, transceiver module 5201 is configured to receive a DSR sent by a terminal. The DSR includes an index that is mapped to a DSR data volume. The DSR data volume includes the data volume corresponding to packets whose remaining time until packet discard is less than a threshold.

[0339] Optionally, the transceiver module 5201 is configured to execute at least one of the communication steps of sending and / or receiving performed by the network device 102 in any of the above methods, which are not described in detail here. Optionally, the processing module is configured to execute at least one of the other steps performed by the network device 102 in any of the above methods, which are not described in detail here.

[0340] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0341] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0342] Figure 6a is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal implementing any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0343] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 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 the communication protocol 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. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0344] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface 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.

[0345] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memory 6102 and may be configured to receive data from the memory 6102 or other devices, or to send data to the memory 6102 or other devices. For example, the interface circuits 6104 may read data stored in the memory 6102 and send the data to the processor 6101.

[0346] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. 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.

[0347] FIG6b is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6b , but the present disclosure is not limited thereto.

[0348] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0349] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0350] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0351] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0352] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes 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 is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0353] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0354] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods. Industrial Applicability

[0355] In the disclosed method, a terminal accurately reports the DSR data volume corresponding to different indexes by sending a DSR to a network device. This allows the network device to accurately determine the amount of data for which the remaining time before packet discard is less than a threshold, facilitating scheduling based on this data volume. This reporting eliminates the need for the terminal to report excessive amounts of data, saving network device resources during scheduling.

Claims

1. A method for sending a delay status report DSR, the method comprising: The terminal sends a DSR to the network device, wherein the DSR includes an index, wherein the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: a data volume corresponding to a data packet whose remaining time from packet discard is less than a threshold.

2. The method of claim 1, wherein: The DSR data volume in the mapping relationship is based on the minimum value B of the data volume min , the maximum value of data volume B max , the number N of data amounts between the minimum value and the maximum value and generated by a first algorithm; wherein the number N is determined based on the number of bits used to indicate the data amount in the DSR.

3. The method of claim 2, wherein: The minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

4. The method of claim 2, wherein: The first algorithm is an exponential algorithm or a linear algorithm, and the DSR data volume is generated according to the following method: Where p = (B max / B min ) 1 / (N-1) -1; or, in, Among them, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

5. The method according to any one of claims 1 to 4, wherein: The mapping relationship is defined by a protocol; or, The mapping relationship is configured by the network device.

6. The method of claim 5, wherein: When the mapping relationship is configured by the network device, the method further includes: The terminal receives configuration information sent by the network device, where the configuration information includes at least one of the following: Minimum value of data volume B min ; The maximum amount of data B max ; First algorithm.

7. The method of claim 6, wherein: The configuration information is sent via radio resource control RRC signaling or medium access control control element MAC CE.

8. The method of claim 6, wherein: The granularity of the configuration information is a logical channel group LCG.

9. The method according to any one of claims 1 to 8, wherein: The DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume; wherein the remaining time is determined according to the packet discard timer configured by the network device.

10. The method according to any one of claims 1 to 8, wherein: The threshold is configured for the network device.

11. A method for receiving a DSR, the method comprising: The network device receives a DSR sent by a terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discarding is less than a threshold.

12. The method of claim 11, wherein: The DSR data volume in the mapping relationship is based on the minimum value B of the data volume min , the maximum value of data volume B max , the number N of data amounts between the minimum value and the maximum value and generated by a first algorithm; wherein the number N is determined based on the number of bits used to indicate the data amount in the DSR.

13. The method of claim 12, wherein: The minimum value B min Greater than 0, or the minimum value B min Less than or equal to the first value.

14. The method of claim 12, wherein: The first algorithm is an exponential algorithm or a linear algorithm, and the DSR data volume is generated according to the following method: Where p = (B max / B min ) 1 / (N-1) -1; or, in, Among them, B k Indicates the amount of data corresponding to index k, Indicates a round-up operation.

15. The method according to any one of claims 11 to 14, wherein: The mapping relationship is defined by a protocol; or, The mapping relationship is configured by the network device.

16. The method of claim 15, wherein: When the mapping relationship is configured by the network device, the method further includes: The network device sends configuration information to the terminal, where the configuration information includes at least one of the following: Minimum value of data volume B min ; The maximum amount of data B max ; First algorithm.

17. The method of claim 16, wherein: The configuration information is sent via RRC signaling or MAC CE.

18. The method of claim 16, wherein: The granularity of the configuration information is LCG.

19. The method according to any one of claims 11 to 18, wherein: The DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume; wherein the remaining time is determined according to the packet discard timer configured by the network device.

20. The method according to any one of claims 11 to 18, wherein: The threshold is configured for the network device.

21. A terminal, comprising: The transceiver module is used to send a DSR to a network device. The DSR includes an index. The index has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

22. A network device comprising: The transceiver module is used to receive the DSR sent by the terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discarding is less than a threshold.

23. A terminal, comprising: Memory; one or more processors; and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 10 when executing the computer program.

24. A network device comprising: Memory; one or more processors; and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 11 to 20 when executing the computer program.

25. A communication system, comprising a terminal and a network device, wherein: The terminal is configured to implement the method according to any one of claims 1 to 10; The network device is configured to implement the method according to any one of claims 11-20.

26. A storage medium storing instructions, wherein: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 10 or any one of claims 11 to 20.

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