Instruction information sending method, instruction information receiving method, terminals, network devices, system and medium

Abstract

The present disclosure relates to an instruction information sending method, an instruction information receiving method, terminals, network devices, a system and a medium. The instruction information receiving method comprises: a terminal receives instruction information sent by a network device, the instruction information being used for instructing the terminal to activate or deactivate a protocol data unit set importance (PSI)-based data packet discarding function. In the method of the present disclosure, the terminal receives the instruction information from the network device, so as to accurately know whether the PSI-based data packet discarding function is activated or deactivated. Thus, on the basis of the instruction information, the terminal can promptly use PSI-based data packet discarding and promptly discard data packets to relieve network congestion, or on the basis of the instruction information, the terminal does not use PSI-based data packet discarding, so as to ensure QoS.

Description

Method, terminal, network device, system and medium for sending and receiving indication information 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 indication information. Background Art

[0002] The Packet Data Convergence Protocol (PDCP) layer defines a packet discard mechanism. When a transmitting PDCP entity receives data from a higher layer, it starts a corresponding discard timer. When the discard timer expires, the PDCP entity can discard the expired packet.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a method, terminal, network device, system, and medium for sending and receiving indication information.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for receiving indication information, the method comprising:

[0006] The terminal receives instruction information sent by the network device, wherein the instruction information is used to instruct the terminal to activate or deactivate a data packet discarding function based on a data set importance level PSI.

[0007] In a second aspect, an embodiment of the present disclosure provides a method for sending indication information, the method comprising:

[0008] The network device sends instruction information to the terminal, where the instruction information is used to instruct the terminal to activate or deactivate a PSI-based data packet discarding function.

[0009] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0010] The transceiver module is used to receive indication information sent by the network device, wherein the indication information is used to instruct the terminal to activate or deactivate the data packet discarding function based on the PSI.

[0011] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0012] The transceiver module is used to send indication information to the terminal, wherein the indication information is used to instruct the terminal to activate or deactivate a data packet discarding function based on the PSI.

[0013] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0014] one or more processors;

[0015] The terminal is used to execute the method of the first aspect.

[0016] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0017] one or more processors;

[0018] The network device is used to execute the method of the second aspect.

[0019] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0020] The terminal is configured to implement the method of the first aspect;

[0021] The network device is configured to implement the method of the second aspect.

[0022] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0023] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0024] In the disclosed method, a terminal receives indication information from a network device to accurately determine whether the PSI-based packet discarding function is activated or deactivated. Based on the indication information, the terminal can promptly apply PSI-based packet discarding to alleviate network congestion, or not apply PSI-based packet discarding to ensure Quality of Service (QoS). BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] FIG1a is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0027] FIG1b is a schematic diagram of a protocol layer structure according to an embodiment of the present disclosure;

[0028] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0029] Figures 2b to 2e are schematic diagrams of the format of a MAC subheader according to an embodiment of the present disclosure;

[0030] 3a-3b are schematic flow diagrams of a method performed by a terminal according to an embodiment of the present disclosure;

[0031] 4a-4b are flowcharts of a method performed by a network device according to an embodiment of the present disclosure;

[0032] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0033] FIG5b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0034] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0035] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] Embodiments of the present disclosure provide a method, terminal, network device, system, and medium for sending and receiving indication information.

[0037] In a first aspect, an embodiment of the present disclosure provides a method for receiving indication information, the method comprising:

[0038] The terminal receives instruction information sent by the network device, wherein the instruction information is used to instruct the terminal to activate or deactivate (activation / deactivation) a data packet discarding function based on protocol data unit set importance (PSI).

[0039] In the above embodiment, the terminal receives indication information from the network device to accurately determine whether the PSI-based packet discarding function is activated or deactivated. Thus, based on the indication information, the terminal can promptly apply PSI-based packet discarding to alleviate network congestion, or not apply PSI-based packet discarding based on the indication information to ensure QoS.

[0040] In combination with the embodiments of the first aspect, in some embodiments, the indication information is sent through medium access control (MAC) information, wherein the MAC information includes a MAC control element (MAC CE) and a MAC subheader (MAC subheader) corresponding to the MAC CE; the indication information is carried in the MAC CE or in the MAC subheader.

[0041] In the above embodiment, the indication information may be sent via MAC information to clearly indicate to the terminal whether to activate PSI-based packet discarding.

[0042] In conjunction with the embodiments of the first aspect, in some embodiments, the MAC subheader includes at least one of the following:

[0043] A reserved information field, the reserved information field including at least one reserved bit;

[0044] Logical channel identifier LCID information field;

[0045] Extended logical channel identifier eLCID information field.

[0046] In the above embodiment, the above indication information may be clearly indicated through at least one information field in the MAC subheader, so that the terminal can accurately know the status of the data packet discard based on the PSI.

[0047] In conjunction with the embodiments of the first aspect, in some embodiments, the LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE for activating or deactivating a PSI-based packet discard function;

[0048] The reserved information field is a first value, used to instruct the terminal to activate the PSI-based packet discard function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based packet discard function; wherein the first value and the second value are different.

[0049] In the above embodiment, the reserved bits in the MAC subheader are used to explicitly indicate activation or deactivation of PSI-based packet discarding, so that the terminal can accurately know the status of PSI-based packet discarding.

[0050] In conjunction with the embodiments of the first aspect, in some embodiments, the code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal activates a PSI-based packet discard function;

[0051] The code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal deactivates the PSI-based packet discard function;

[0052] Among them, the third value and the fourth value are different.

[0053] In the above embodiment, the LCID information field or the eLCID information field in the MAC subheader is multiplexed to clearly indicate activation or deactivation of PSI-based packet discarding, so that the terminal can accurately know the status of PSI-based packet discarding.

[0054] In combination with the embodiments of the first aspect, in some embodiments, one of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based packet discard function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based packet discard function.

[0055] In the above embodiment, two information fields in the MAC subheader are used to jointly indicate the status of the PSI-based packet discard.

[0056] In combination with the embodiments of the first aspect, in some embodiments, upon receiving a MAC CE, the terminal activates a PSI-based data packet discard function.

[0057] In the above embodiment, when the terminal receives the MAC CE, it is informed that the PSI-based data packet discarding is activated, so that the terminal can discard the packet in time based on the PSI to alleviate network congestion.

[0058] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0059] The terminal starts the timer corresponding to the MAC CE. The timer duration is the activation duration of the PSI-based packet discard function.

[0060] When the timer expires, the terminal deactivates the PSI-based packet discard function.

[0061] In the above embodiment, a corresponding timer is started for the MAC CE, so that the terminal can determine the duration of packet discarding according to the timer. When the timer expires, the terminal knows that PSI-based packet discarding is deactivated and can stop packet discarding to ensure QoS.

[0062] In conjunction with the embodiment of the first aspect, in some embodiments, the activation duration is defined by the protocol, or

[0063] The activation duration is configured by the network device through MAC CE or radio resource control RRC signaling.

[0064] In the above embodiment, the running duration of the timer can be defined by the protocol or configured by the network device, so that the terminal and the network device can accurately know the status of the PSI-based data packet discard based on the running of the timer.

[0065] In a second aspect, an embodiment of the present disclosure provides a method for sending indication information, the method comprising:

[0066] The network device sends instruction information to the terminal, where the instruction information is used to instruct the terminal to activate or deactivate a PSI-based data packet discarding function.

[0067] In the above embodiment, the network device sends indication information to the terminal so that the terminal can accurately determine whether PSI-based packet discarding is activated or deactivated. This helps the terminal to promptly apply PSI-based packet discarding based on the indication information to alleviate network congestion, or to not apply PSI-based packet discarding based on the indication information to ensure QoS.

[0068] In combination with the embodiments of the second aspect, in some embodiments, the indication information is sent via MAC information, wherein the MAC information includes a MAC CE and a MAC subheader corresponding to the MAC CE; the indication information is carried in the MAC CE or in the MAC subheader.

[0069] In conjunction with the embodiments of the second aspect, in some embodiments, the MAC subheader includes at least one of the following:

[0070] A reserved information field, the reserved information field including at least one reserved bit;

[0071] LCID information field;

[0072] eLCID information field.

[0073] In conjunction with the embodiments of the second aspect, in some embodiments, the LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE for activating or deactivating a PSI-based packet discard function;

[0074] The reserved information field is a first value, used to instruct the terminal to activate the PSI-based packet discard function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based packet discard function; wherein the first value and the second value are different.

[0075] In conjunction with the embodiments of the second aspect, in some embodiments, the code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal activates a PSI-based packet discard function;

[0076] The code point corresponding to the LCID information field or the eLCID information field is a fourth value, indicating that the terminal deactivates the PSI-based packet discard function;

[0077] Among them, the third value and the fourth value are different.

[0078] In combination with the embodiments of the second aspect, in some embodiments, one of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based packet discard function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based packet discard function.

[0079] In combination with the embodiments of the second aspect, in some embodiments, the MAC CE is used to instruct the terminal to activate a PSI-based data packet discard function.

[0080] In conjunction with the embodiment of the second aspect, in some embodiments, the MAC CE has a corresponding timer, and the timing duration of the timer is the activation duration of the PSI-based packet discard function;

[0081] When the timer times out, the PSI-based data packet discarding function is deactivated by the terminal.

[0082] In conjunction with the embodiment of the second aspect, in some embodiments, the activation duration is defined by the protocol, or

[0083] The activation duration is configured by the network device through MAC CE or radio resource control RRC signaling.

[0084] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0085] The transceiver module is used to receive indication information sent by the network device, wherein the indication information is used to instruct the terminal to activate or deactivate the data packet discarding function based on the PSI.

[0086] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0087] The transceiver module is used to send indication information to the terminal, wherein the indication information is used to instruct the terminal to activate or deactivate a data packet discarding function based on the PSI.

[0088] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0089] one or more processors;

[0090] The terminal is used to execute the method of the first aspect.

[0091] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0092] one or more processors;

[0093] The network device is used to execute the method of the second aspect.

[0094] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0095] The terminal is configured to implement the method of the first aspect;

[0096] The network device is configured to implement the method of the second aspect.

[0097] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0098] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0099] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0100] When the instruction is executed on a communication device, the communication device is caused to execute the method described in the first aspect or the second aspect.

[0101] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0102] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0103] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0104] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0110] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0125] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0126] 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.

[0127] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0128] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

[0129] 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.

[0130] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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).

[0135] 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.

[0136] 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.

[0137] FIG1b is a schematic diagram of a protocol layer structure according to an embodiment of the present disclosure.

[0138] 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.

[0139] 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).

[0140] In an embodiment of the present disclosure, the network device 102 may configure a 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.

[0141] In the embodiments of the present disclosure, enhanced extended reality (XR) includes a QoS mechanism based on PDU sets. Each PDU set has parameters related to QoS processing, one of which is the PSI. The PSI can be applied to packet discard, i.e., PSI-based packet discard or packet discard.

[0142] Optionally, in one embodiment, the MAC CE used to indicate activation or deactivation of PSI-based packet discard is a fixed size of zero bits, and activation or deactivation is determined by the number of times the MAC CE is received, for example, the first time is activation, the second time is deactivation, the third time is activation, and so on.

[0143] In this approach, the MAC CE does not contain actual information and cannot clearly indicate whether PSI-based packet discarding is activated or deactivated. Furthermore, because MAC CE signaling may be lost, network device 102 and terminal 101 may not synchronize their understanding of the activation and deactivation states. Terminal 101 may not discard packets, such as PDU Sets, when in the activated state, thus failing to alleviate network congestion. Alternatively, terminal 101 may discard PDU Sets when in the deactivated state, impacting QoS.

[0144] In an embodiment of the present disclosure, a method for effectively indicating the activation state of PSI-based packet discarding is provided, so that both the terminal 101 and the network device 102 can clearly determine whether PSI-based packet discarding is in an activated state.

[0145] Figure 2a is an interactive diagram of a method for sending and receiving indication information according to an embodiment of the present disclosure. As shown in Figure 2a, an embodiment of the present disclosure relates to a method for sending and receiving indication information, the method comprising:

[0146] In step S2101 , the network device 102 sends instruction information to the terminal 101 .

[0147] In some embodiments, the indication information is used to instruct the terminal 101 to activate or deactivate a PSI-based packet discard (psi-BasedDiscard) function.

[0148] In some embodiments, terminal 101 receives the indication information.

[0149] Optionally, the terminal 101 may identify the importance of the data packet according to the PSI.

[0150] Optionally, the same QoS flow includes multiple data packets, such as PDU Sets, and the PSI can be used to indicate the relative importance of the corresponding PDU Set relative to other PDU Sets in the QoS flow. In PSI-based packet discarding, packets with lower importance can be discarded preferentially by terminal 101.

[0151] In some embodiments, the indication information is sent via MAC information, wherein the MAC information includes a MAC CE and a MAC subheader corresponding to the MAC CE.

[0152] Optionally, the network device 102 sends the indication information via MAC information, and after the MAC entity of the terminal 101 receives the MAC information, the indication information is optionally carried in a MAC CE or in a MAC subheader.

[0153] In some embodiments, the MAC subheader includes at least one of the following:

[0154] A reserved information field, the reserved information field includes at least one reserved bit (R bit);

[0155] Logical channel identification (LCID) information field;

[0156] Extended logical channel identifier (eLCID) information field;

[0157] Optionally, at least one of the reserved information field, the LCID information field and the eLCID information field is used to indicate the above indication information.

[0158] Optionally, referring to the MAC subheader structure shown in FIG. 2 b to FIG. 2 c , the reserved information field may include 1 bit, or include 2 reserved bits as shown in the figure.

[0159] Optionally, the LCID information field may be used to indicate the content of the payload corresponding to the MAC subheader, such as whether the payload corresponding to the MAC subheader is data or MAC CE.

[0160] Optionally, the eLCID information field is an extension of the LCID information field and can be used together with the LCID information field to indicate related information.

[0161] In the first example, the LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE for activating or deactivating a PSI-based PDU Discard Activation / Deactivation MAC CE.

[0162] The reserved information field is a first value, used to instruct the terminal to activate the PSI-based data packet discarding function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based data packet discarding function; wherein the first value and the second value are different.

[0163] In this example, in conjunction with Figures 2b to 2c, the first reserved bit and / or the second reserved bit can be used to indicate the activation or deactivation of PSI-based packet discarding. For example, referring to the examples of Figures 2d to 2e, the first reserved bit (the A / D bit in the figure) is used to indicate the activation or deactivation of PSI-based packet discarding, and the first value can be one of 1 and 0, and the second value can be the other of 1 and 0; when the value of this bit is 1, it indicates that PSI-based packet discarding is activated (A), and when the value of this bit is 0, it indicates that PSI-based packet discarding is deactivated (D); or, when the value of this bit is 0, it indicates that PSI-based packet discarding is activated, and when the value of this bit is 1, it indicates that PSI-based packet discarding is deactivated.

[0164] In this example, the LCID information field may be used to indicate the PSI-Based PDU Discard Activation / Deactivation MAC CE, or the eLCID information field may be used to indicate the PSI-Based PDU Discard Activation / Deactivation MAC CE.

[0165] In this example, the MAC CE corresponding to the MAC subheader may still be a fixed size of 0 bits.

[0166] In the second example, the LCID information field or the eLCID information field is used to indicate the above indication information.

[0167] In this example, the code point (Codepoint) corresponding to the LCID information field or the eLCID information field is the third value, indicating that the terminal activates the PSI-based packet discard function; the code point corresponding to the LCID information field or the eLCID information field is the fourth value, indicating that the terminal deactivates the PSI-based packet discard function, wherein the third value and the fourth value are different.

[0168] The code point may be used to indicate the value corresponding to one octet of the LCID information field or the eLCID information field.

[0169] For example, the code point, index (Index), and the values ​​of the LCID information field or the eLCID information field have a mapping relationship, and the mapping relationship can be referred to as shown in the following Table 1. In the example of Table 1, the third value can be 226, indicating activation of PSI-based packet discard (PSI-Based PDU Discard Activation MAC CE); the fourth value can be 225, indicating deactivation of PSI-based packet discard (PSI-Based PDU Discard Deactivation MAC CE).

[0170] Table 1

[0171] For another example, in addition to the third value and the fourth value shown in Table 1, other Codepoints may also be used to indicate activation or deactivation of the MAC CE for PSI-based packet discard.

[0172] In this example, one of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based packet discarding function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based packet discarding function.

[0173] Optionally, in the above code point method, the activation or deactivation of PSI-based packet discarding can be indicated by the LCID information field, or the activation or deactivation of PSI-based packet discarding can be indicated by the eLCID information field.

[0174] Optionally, the LCID information field may be used to indicate activation of PSI-based packet discarding, and the eLCID information field may be used to indicate deactivation of PSI-based packet discarding; or, the LCID information field may be used to indicate deactivation of PSI-based packet discarding, and the eLCID information field may be used to indicate activation of PSI-based packet discarding.

[0175] In the third example, upon receiving the MAC CE, the terminal activates the PSI-based packet discard function.

[0176] Optionally, the MAC CE may be a fixed size of 0 bits or greater than 0 bits.

[0177] Optionally, after receiving the MAC CE, the terminal 101 determines that the PSI-based data packet discard function is activated.

[0178] Optionally, the method further includes: the terminal 101 starting a timer corresponding to the MAC CE, where the timing duration of the timer is the activation duration of the PSI-based data packet discard function;

[0179] When the timer times out, the terminal 101 deactivates the PSI-based packet discarding function.

[0180] Optionally, the timer is started or restarted (start / restart) after receiving the MAC CE. The timer has a corresponding relationship or a mapping relationship with the MAC CE.

[0181] Optionally, the activation duration is defined by a protocol, or is configured by the network device 102 through MAC CE or Radio Resource Control (RRC) signaling. For example, the protocol defines the activation duration as 30 ms.

[0182] Step S2102: When the PSI-based packet discarding function is activated, the terminal 101 discards the packet based on the PSI.

[0183] In some embodiments, after receiving the indication information indicating activation of the PSI-based packet discarding function, the terminal 101 may start a corresponding PSI-based packet discarding packet discardTimerForLowImportance for the packet.

[0184] Optionally, the discardTimerForLowImportance may run for a shorter duration than the discard timer discardTimer for regular packet discarding.

[0185] Optionally, in PSI-based packet discarding, when the PSI corresponding to a packet indicates lower importance, the packet may be preferentially discarded by the terminal 101. For example, a packet of lower importance may be configured with a shorter discard timer discardTimerForLowImportance, so that the packet discard timer is more likely to time out and be discarded.

[0186] In some embodiments, after receiving the indication information sent by the network device 102 via MAC information, the MAC entity of the terminal 101 may report the content of the MAC information to an upper layer (such as a PDCP entity).

[0187] Optionally, upon receiving a data packet, such as a PDCP SDU, from its upper layer, the PDCP entity of terminal 101 starts the discardTimerForLowImportance associated with the PDCP SDU if PSI-based packet discard is activated and the PDCP SDU belongs to a PDU Set of lower importance. Otherwise, if PSI-based packet discard is deactivated, the discardTimer associated with the PDCP SDU is started. The data packet is discarded or not discarded based on the packet discard timer.

[0188] 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.

[0189] 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.

[0190] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0191] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0192] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0193] 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.

[0194] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0195] 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.

[0196] 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.

[0197] 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.

[0198] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as an independent embodiment, but is not limited thereto.

[0199] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0200] FIG3a is a schematic diagram of a method for receiving indication information according to an embodiment of the present disclosure. As shown in FIG3a, an embodiment of the present disclosure relates to a method for receiving indication information, which is executed by terminal 101 and includes:

[0201] Step S3101, obtain instruction information.

[0202] In some embodiments, optional implementations of step S3101 can be found in step S2101 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.

[0203] Optionally, the terminal 101 may obtain indication information from the network device 102 or other entities.

[0204] Step S3102: When the PSI-based packet discarding function is activated, the packet is discarded based on the PSI.

[0205] In some embodiments, optional implementations of step S3102 can be found in step S2101 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.

[0206] The method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3102. For example, step S3101 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 schematic diagram of a method for receiving indication information according to an embodiment of the present disclosure. As shown in FIG3b, an embodiment of the present disclosure relates to a method for receiving indication information, which is executed by terminal 101 and includes:

[0209] Step S3201: Receive instruction information sent by the network device 102.

[0210] In some embodiments, optional implementations of step S3201 can be found in step S2101 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.

[0211] In some embodiments, the indication information is used to instruct the terminal to activate or deactivate a data packet discarding function based on a data set importance level PSI.

[0212] In some embodiments, the indication information is sent via media access control MAC information, wherein the MAC information includes a MAC control element MAC CE and a MAC subheader corresponding to the MAC CE; the indication information is carried in the MAC CE or in the MAC subheader.

[0213] In some embodiments, the MAC subheader includes at least one of the following:

[0214] A reserved information field, the reserved information field including at least one reserved bit;

[0215] Logical channel identifier LCID information field;

[0216] Extended logical channel identifier eLCID information field.

[0217] In some embodiments, the LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE for activating or deactivating a PSI-based packet discard function;

[0218] The reserved information field is a first value, used to instruct the terminal to activate the PSI-based packet discard function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based packet discard function; wherein the first value and the second value are different.

[0219] In some embodiments, the code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal activates a PSI-based packet discard function;

[0220] The code point corresponding to the LCID information field or the eLCID information field is a fourth value, indicating that the terminal deactivates the PSI-based packet discard function;

[0221] Among them, the third value and the fourth value are different.

[0222] In some embodiments, one of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based packet discarding function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based packet discarding function.

[0223] In some embodiments, upon receiving the MAC CE, the terminal activates a PSI-based packet discard function.

[0224] Optionally, the method further includes:

[0225] The terminal starts the timer corresponding to the MAC CE. The timer duration is the activation duration of the PSI-based packet discard function.

[0226] When the timer times out, the terminal deactivates the PSI-based data packet discarding function.

[0227] Optionally, the activation duration is defined by the protocol, or

[0228] The activation duration is configured by the network device through MAC CE or radio resource control RRC signaling.

[0229] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0230] FIG4a is a schematic diagram of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4a, an embodiment of the present disclosure relates to a method for sending indication information, which is executed by a network device 102 and includes:

[0231] Step S4101, sending instruction information.

[0232] In some embodiments, optional implementations of step S4101 can be found in step S2101 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.

[0233] Optionally, the network device 102 may send indication information to the terminal 101 or other entities.

[0234] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0235] FIG4b is a schematic diagram of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4b, an embodiment of the present disclosure relates to a method for sending indication information, which is executed by the network device 102 and includes:

[0236] Step S4201: Send instruction information to terminal 101

[0237] In some embodiments, optional implementations of step S4201 can be found in step S2101 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.

[0238] In some embodiments, the indication information is used to instruct the terminal to activate or deactivate a PSI-based packet discarding function.

[0239] In some embodiments, the indication information is sent via MAC information, wherein the MAC information includes a MAC CE and a MAC subheader corresponding to the MAC CE; the indication information is carried in the MAC CE or in the MAC subheader.

[0240] In some embodiments, the MAC subheader includes at least one of the following:

[0241] A reserved information field, the reserved information field including at least one reserved bit;

[0242] LCID information field;

[0243] eLCID information field.

[0244] In some embodiments, the LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE for activating or deactivating a PSI-based packet discard function;

[0245] The reserved information field is a first value, used to instruct the terminal to activate the PSI-based packet discard function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based packet discard function; wherein the first value and the second value are different.

[0246] In some embodiments, the code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal activates a PSI-based packet discard function;

[0247] The code point corresponding to the LCID information field or the eLCID information field is the fourth value, instructing the terminal to deactivate the PSI-based data packet discard function; wherein the third value and the fourth value are different.

[0248] In some embodiments, one of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based packet discarding function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based packet discarding function.

[0249] In some embodiments, the MAC CE is used to instruct the terminal to activate a PSI-based packet discard function.

[0250] Optionally, the MAC CE has a corresponding timer, and the timing duration of the timer is the activation duration of the PSI-based data packet discard function;

[0251] When the timer times out, the PSI-based packet discarding function is deactivated by the terminal. Optionally, the activation duration is defined by the protocol, or

[0252] The activation duration is configured by the network device through MAC CE or radio resource control RRC signaling.

[0253] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0254] The methods provided in this disclosure propose a method for activating and deactivating PSI-based packet discarding via MAC CE. This method allows both the gNB and the UE to clearly identify whether PSI-based packet discarding is active. To facilitate understanding of this disclosure, some examples are listed below:

[0255] Example 1:

[0256] The activation status of PSI-based packet discard is indicated by the R bit in the MAC subheader.

[0257] Optionally, the MAC subheader of a fixed size MAC CE is shown in FIG. 2 b to FIG. 2 c .

[0258] Optionally, the first or second R bit in the MAC subheader can be used to indicate the activation status of PSI-based packet discarding. In the examples shown in Figures 2d and 2e, the first R bit (i.e., the A / D bit in the figure) is used to indicate the activation status of PSI-based packet discarding. When the A / D bit is 1, it indicates that PSI-based packet discarding is activated, and when the A / D bit is 0, it indicates that PSI-based packet discarding is deactivated. Alternatively, when the A / D bit is 0, it indicates that PSI-based packet discarding is activated, and when the A / D bit is 1, it indicates that PSI-based packet discarding is deactivated.

[0259] In this example, LCID may be used to indicate PSI-Based PDU Discard Activation / Deactivation MAC CE (as shown in FIG. 2 d ), and eLCID may be used to indicate PSI-Based PDU Discard Activation / Deactivation MAC CE (as shown in FIG. 2 e ).

[0260] Example 2:

[0261] Activating and deactivating PSI-based packet discarding uses different LCIDs / eLCIDs. Whether PSI-based packet discarding is activated can be determined based on the LCID / eLCID. The following embodiments use the eLCID as an example, but the solution is also applicable to situations where both activation and deactivation use the LCID; activation uses the LCID and deactivation uses the eLCID; or activation uses the eLCID and deactivation uses the LCID.

[0262] In this example, referring to Table 2 below, Code point 226 is used to indicate the PSI-Based PDU Discard Activation MAC CE, and Code point 225 is used to indicate the PSI-Based PDU Discard Deactivation MAC CE.

[0263] Table 2

[0264] Alternatively, other codepoints may be used to indicate activation / deactivation of the PSI-based packet discard MAC CE. The PSI-Based PDU Discard Activation MAC CE indicates that PSI-based packet discard is activated, while the PSI-Based PDU Discard Deactivation MAC CE indicates that PSI-based packet discard is deactivated.

[0265] Example 3:

[0266] A timer is introduced to indicate the duration of activation of PSI-based packet discarding. When the UE receives a MAC CE activating PSI-based packet discarding, PSI-based packet discarding is activated and the timer corresponding to the MAC CE is started or restarted.

[0267] When the timer expires, PSI-based packet discarding is deactivated.

[0268] Optionally, the duration of the timer may be specified by the standard (e.g., 30 ms) or configured by the gNB for the UE. For example, the configuration may be configured via RRC signaling or indicated in a MAC CE, i.e., the timer length may be indicated in a MAC CE for PSI-based packet discard.

[0269] 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.

[0270] 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.

[0271] 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.

[0272] Figure 5a is a schematic diagram of the terminal structure proposed in 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 receive indication information sent by a network device, wherein the indication information is configured to instruct the terminal to activate or deactivate a PSI-based packet discard function.

[0273] 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.

[0274] 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 send an instruction to a terminal, instructing the terminal to activate or deactivate a PSI-based packet discard function.

[0275] 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.

[0276] 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.

[0277] 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.

[0278] 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.

[0279] 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.

[0280] 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.

[0281] 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 memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0282] 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.

[0283] 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.

[0284] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0285] 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.

[0286] 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.

[0287] 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.

[0288] 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.

[0289] 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.

[0290] 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

[0291] The terminal receives indications from network devices to accurately determine whether the PSI-based packet discarding function is activated or deactivated. Based on the indications, the terminal can promptly apply PSI-based packet discarding to alleviate network congestion, or not apply PSI-based packet discarding to ensure QoS.

Claims

1. A method for receiving indication information, the method comprising: The terminal receives indication information sent by the network device, wherein the indication information is used to instruct the terminal to activate or deactivate a data packet discarding function based on a data set importance PSI.

2. The method of claim 1, wherein: The indication information is sent via media access control MAC information, wherein the MAC information includes a MAC control unit MAC CE and a MAC subheader corresponding to the MAC CE; the indication information is carried in the MAC CE or in the MAC subheader.

3. The method of claim 2, wherein: The MAC subheader includes at least one of the following: A reserved information field, wherein the reserved information field includes at least one reserved bit; Logical channel identifier LCID information field; Extended logical channel identifier eLCID information field.

4. The method of claim 3, wherein: The LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE used to activate or deactivate a PSI-based packet discard function; The reserved information field is a first value, used to instruct the terminal to activate the PSI-based packet discard function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based packet discard function; wherein the first value and the second value are different.

5. The method of claim 3, wherein: The code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal activates a PSI-based packet discard function; The code point corresponding to the LCID information field or the eLCID information field is a fourth value, indicating that the terminal deactivates a PSI-based packet discard function; The third value and the fourth value are different.

6. The method of claim 3, wherein: One of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based data packet discarding function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based data packet discarding function.

7. The method of claim 2, wherein: When receiving the MAC CE, the terminal activates a PSI-based data packet discard function.

8. The method of claim 7, further comprising: The terminal starts a timer corresponding to the MAC CE, where the timing duration of the timer is the activation duration of the PSI-based data packet discard function; When the timer times out, the terminal deactivates the PSI-based data packet discarding function.

9. The method of claim 8, wherein: The activation duration is defined by the protocol, or The activation duration is configured by the network device through the MAC CE or radio resource control RRC signaling.

10. A method for sending indication information, the method comprising: The network device sends indication information to the terminal, wherein the indication information is used to instruct the terminal to activate or deactivate a PSI-based data packet discard function.

11. The method of claim 10, wherein: The indication information is sent via MAC information, wherein the MAC information includes a MAC CE and a MAC subheader corresponding to the MAC CE; the indication information is carried in the MAC CE or in the MAC subheader.

12. The method of claim 11, wherein: The MAC subheader includes at least one of the following: A reserved information field, wherein the reserved information field includes at least one reserved bit; LCID information field; eLCID information field.

13. The method of claim 12, wherein: The LCID information field or the eLCID information field is used to indicate that the MAC CE is a MAC CE used to activate or deactivate a PSI-based packet discard function; The reserved information field is a first value, used to instruct the terminal to activate the PSI-based packet discard function; the reserved information field is a second value, used to instruct the terminal to deactivate the PSI-based packet discard function; wherein the first value and the second value are different.

14. The method of claim 12, wherein: The code point corresponding to the LCID information field or the eLCID information field is a third value, indicating that the terminal activates a PSI-based packet discard function; The code point corresponding to the LCID information field or the eLCID information field is a fourth value, indicating that the terminal deactivates a PSI-based packet discard function; The third value and the fourth value are different.

15. The method of claim 12, wherein: One of the LCID information field and the eLCID information field is used to instruct the terminal to activate the PSI-based data packet discarding function, and the other of the LCID information field and the eLCID information field is used to instruct the terminal to deactivate the PSI-based data packet discarding function.

16. The method of claim 11, wherein: The MAC CE is used to instruct the terminal to activate a PSI-based data packet discard function.

17. The method of claim 16, wherein: The MAC CE has a corresponding timer, and the timing duration of the timer is the activation duration of the PSI-based data packet discard function; When the timer times out, the PSI-based data packet discarding function is deactivated by the terminal.

18. The method of claim 17, wherein: The activation duration is defined by the protocol, or The activation duration is configured by the network device through the MAC CE or radio resource control RRC signaling.

19. A terminal, comprising: The transceiver module is used to receive indication information sent by a network device, wherein the indication information is used to instruct the terminal to activate or deactivate a PSI-based data packet discard function.

20. A network device comprising: The transceiver module is used to send indication information to the terminal, wherein the indication information is used to instruct the terminal to activate or deactivate a data packet discard function based on the PSI.

21. A terminal, comprising: one or more processors; The terminal is used to execute the method according to any one of claims 1 to 9.

22. A network device comprising: one or more processors; Wherein, the network device is used to execute the method described in any one of claims 10-18.

23. 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 9; The network device is configured to implement the method according to any one of claims 10-18.

24. 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 9 or any one of claims 10 to 18.

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