Information sending method, information receiving method, network device, terminal, apparatus and storage medium

Abstract

The embodiments of the present disclosure belong to the technical field of communications. Disclosed are an information sending method, an information receiving method, a network device, a terminal, an apparatus and a storage medium. The information sending method comprises: sending auxiliary information to a network device, wherein the auxiliary information comprises first information and / or second information; the first information is a packet data unit set (PDU Set) error rate (PSER) of a target object in an uplink transmission direction; the second information is information configured to determine the PSER of the target object in the uplink transmission direction; and the target object is a terminal, a QoS flow of the terminal, a radio bearer (RB) of the terminal or a logical channel of the terminal.

Description

Information sending and receiving method, network equipment, terminal, device and storage medium

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on July 28, 2023, with application number 202310940845.8 and application name “Information sending, receiving method, network equipment, terminal, device and storage medium”, the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0002] The present disclosure relates to the field of mobile communication technologies, and in particular to an information sending and receiving method, a network device, a terminal, an apparatus, and a storage medium. Background Art

[0003] Extended Reality (XR) and cloud gaming (CG), as two of the most important fifth-generation mobile communications (5G) media applications, require low latency, high throughput, and high reliability, necessitating the transmission of large amounts of data in a short period of time. XR is a general term for different types of reality, encompassing all environments and human-computer interactions that combine real and virtual reality, generated by computer technology and devices. It encompasses representative forms such as augmented reality (AR), mixed reality (MR), and virtual reality (VR).

[0004] Figure 1 shows a modeling approach for XR services based on data frames. For example, each data frame can correspond to an XR video frame, and the same data frame can be divided into one or more packet data unit sets (PDU Sets). A PDU Set contains multiple PDUs (as shown in Figure 2). In the disclosed embodiments, a data frame is equivalent to a data burst.

[0005] Some characteristics of XR services are as follows:

[0006] - Video frame rates include 15 / 30 / 60 / 90 / 80 frames per second (fps), corresponding to periods of 66.6 / 33.3 / 16.66 / 8.87ms respectively;

[0007] - Frame arrival time has unpredictable jitter;

[0008] - Latency requirement: 10ms or 7-15ms range;

[0009] -Bit rate: 10-200Mbps;

[0010] -PDU Set Quality of Service (QoS) parameters typically include:

[0011] PDU Set Error Rate (PSER);

[0012] PDU Set Delay Budget (PSDB);

[0013] PDU Set Integrated Indication (PSII)

[0014] For XR services, network devices cannot obtain uplink PDU Set information and therefore cannot calculate uplink PSER.

[0015] Summary of the Invention

[0016] The embodiments of the present disclosure provide an information sending and receiving method, a network device, a terminal, an apparatus, and a storage medium, which can provide the PSER of an uplink PDU Set to the network device through auxiliary information or provide the network device with information for calculating the PSER through auxiliary information.

[0017] In a first aspect, an embodiment of the present disclosure provides an information sending method, including:

[0018] Auxiliary information is sent to a network device, where the auxiliary information includes first information and / or second information, wherein the first information is an error rate PSER of a packet data unit set PDU Set of a target object in an uplink transmission direction, and the second information is information used to determine the PSER of the target object in an uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the radio bearer RB of the terminal, or the logical channel of the terminal.

[0019] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0020] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0021] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0022] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0023] PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration;

[0024] PDU Set discarded due to transmission failure due to channel quality issues.

[0025] Optionally, before sending the auxiliary information to the network device, the method further includes:

[0026] Check whether the trigger conditions for reporting auxiliary information are met;

[0027] When an auxiliary information reporting trigger condition is met, sending the auxiliary information to the network device;

[0028] The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

[0029] Optionally, the event in the event trigger includes at least one of a first event and a second event;

[0030] The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold;

[0031] The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted.

[0032] Optionally, the sending the auxiliary information to the network device includes:

[0033] The auxiliary information is sent to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

[0034] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0035] The packet error rate PER of the target object in the uplink transmission direction;

[0036] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0037] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0038] The PDCP PDU has been transmitted but failed to be transmitted;

[0039] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0040] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0041] Optionally, the auxiliary information is data collected from the target object within a preset time period.

[0042] Optionally, the above method further includes:

[0043] receiving first configuration information sent by a network device, and determining the preset time period according to the first configuration information;

[0044] or,

[0045] The preset time period is determined according to pre-configuration information or protocol agreement.

[0046] In a second aspect, an embodiment of the present disclosure provides an information receiving method, including:

[0047] Auxiliary information sent by the receiving terminal includes first information and / or second information, wherein the first information is the error rate PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal or the logical channel of the terminal.

[0048] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0049] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0050] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0051] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0052] PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration;

[0053] PDU Set discarded due to transmission failure due to channel quality issues.

[0054] Optionally, when the auxiliary information includes the second information, the method further includes:

[0055] A PSER of the target object in an uplink transmission direction is determined according to the second information.

[0056] Optionally, determining, according to the second information, a PSER of the target object in an uplink transmission direction includes:

[0057] Obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0058] Obtaining, according to the second sub-information, a third number of PDU Sets that were not successfully transmitted by the target object in an uplink transmission direction;

[0059] A ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or a ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

[0060] Optionally, the auxiliary information sent by the receiving terminal includes:

[0061] A UAI message and / or a PDCP control PDU sent by the terminal is received, where the UAI message and / or the PDCP control PDU carry the auxiliary information.

[0062] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0063] The packet error rate PER of the target object in the uplink transmission direction;

[0064] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0065] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0066] The PDCP PDU has been transmitted but failed to be transmitted;

[0067] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0068] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0069] Optionally, the above method further includes:

[0070] Obtaining, based on the third information, a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction and a fifth number of PDCP PDUs for which the reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted;

[0071] A ratio of the fifth number to the fourth number is determined as the PER of the target object in the uplink transmission direction.

[0072] Optionally, the above method further includes:

[0073] A reordering window of an RLC entity corresponding to the target object is adjusted according to the auxiliary information.

[0074] Optionally, the auxiliary information is data collected by the terminal for the target object within a preset time period.

[0075] Optionally, the above method further includes:

[0076] First configuration information is sent to the terminal, where the first configuration information is used to configure the preset time period.

[0077] In a third aspect, an embodiment of the present disclosure provides a terminal, including: a memory, a transceiver, and a processor:

[0078] A memory storing a computer program; a transceiver transmitting and receiving data under the control of the processor; and a processor reading the computer program in the memory and performing the following operations:

[0079] Auxiliary information is sent to the network device through a transceiver, and the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the packet data unit set PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel of the terminal.

[0080] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0081] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0082] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0083] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0084] PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration;

[0085] PDU Set discarded due to transmission failure due to channel quality issues.

[0086] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0087] Before sending auxiliary information to the network device, check whether the auxiliary information reporting trigger condition is met;

[0088] When an auxiliary information reporting trigger condition is met, sending the auxiliary information to the network device;

[0089] The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

[0090] Optionally, the event in the event trigger includes at least one of a first event and a second event;

[0091] The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold;

[0092] The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted.

[0093] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0094] The auxiliary information is sent to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

[0095] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0096] The packet error rate PER of the target object in the uplink transmission direction;

[0097] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0098] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0099] The PDCP PDU has been transmitted but failed to be transmitted;

[0100] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0101] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0102] Optionally, the auxiliary information is data collected from the target object within a preset time period.

[0103] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0104] receiving, through a transceiver, first configuration information sent by a network device, and determining the preset time period according to the first configuration information;

[0105] or,

[0106] The preset time period is determined according to pre-configuration information or protocol agreement.

[0107] In a fourth aspect, an embodiment of the present disclosure provides a network device, including: a memory, a transceiver, and a processor:

[0108] A memory storing a computer program; a transceiver transmitting and receiving data under the control of the processor; and a processor reading the computer program in the memory and performing the following operations:

[0109] Auxiliary information sent by the terminal is received through a transceiver, and the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel of the terminal.

[0110] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0111] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0112] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0113] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0114] PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration;

[0115] PDU Set discarded due to transmission failure due to channel quality issues.

[0116] Optionally, when the auxiliary information includes the second information, the processor further reads a computer program in the memory and performs the following operations:

[0117] A PSER of the target object in an uplink transmission direction is determined according to the second information.

[0118] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0119] Obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0120] Obtaining, according to the second sub-information, a third number of PDU Sets that were not successfully transmitted by the target object in an uplink transmission direction;

[0121] A ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or a ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

[0122] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0123] A UAI message and / or a PDCP control PDU sent by the terminal is received, where the UAI message and / or the PDCP control PDU carry the auxiliary information.

[0124] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0125] The packet error rate PER of the target object in the uplink transmission direction;

[0126] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0127] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0128] The PDCP PDU has been transmitted but failed to be transmitted;

[0129] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0130] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0131] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0132] Obtaining, based on the third information, a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction and a fifth number of PDCP PDUs for which the reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted;

[0133] A ratio of the fifth number to the fourth number is determined as the PER of the target object in the uplink transmission direction.

[0134] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0135] A reordering window of an RLC entity corresponding to the target object is adjusted according to the auxiliary information.

[0136] Optionally, the auxiliary information is data collected by the terminal for the target object within a preset time period.

[0137] Optionally, the processor further reads the computer program in the memory and performs the following operations:

[0138] First configuration information is sent to the terminal, where the first configuration information is used to configure the preset time period.

[0139] In a fifth aspect, an embodiment of the present disclosure provides an information sending device, applied to a terminal, including:

[0140] A first sending unit is used to send auxiliary information to a network device, where the auxiliary information includes first information and / or second information, wherein the first information is an error rate PSER of a packet data unit set PDU Set of a target object in an uplink transmission direction, and the second information is information used to determine the PSER of the target object in an uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the radio bearer RB of the terminal, or the logical channel of the terminal.

[0141] In a sixth aspect, an embodiment of the present disclosure provides an information receiving device, applied to a network device, comprising:

[0142] A first receiving unit is used to receive auxiliary information sent by a terminal, where the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel of the terminal.

[0143] In a seventh aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the information sending method or indication method described above are implemented.

[0144] In the embodiment of the present disclosure, the terminal sends auxiliary information to the network device, where the auxiliary information is used to indicate the PDU Set that failed to be transmitted by the terminal in the uplink transmission direction and / or the PSER determined by the terminal, thereby assisting the network device in adjusting the reordering window and / or determining the PSER / PER. BRIEF DESCRIPTION OF THE DRAWINGS

[0145] FIG1 is a schematic diagram of data frame modeling of an XR service in related art;

[0146] FIG2 is a schematic diagram of a PDU Set and PDU of an XR service in the related art;

[0147] FIG3 is a schematic diagram of an information sending method provided by an embodiment of the present disclosure;

[0148] FIG4 is a schematic diagram of an information receiving method provided by an embodiment of the present disclosure;

[0149] FIG5 is a diagram illustrating an example structure of a PDCP control PDU provided in an embodiment of the present disclosure;

[0150] FIG6 is another structural example diagram of a PDCP control PDU provided in an embodiment of the present disclosure;

[0151] FIG7 is a structural diagram of an information sending device provided by an embodiment of the present disclosure;

[0152] FIG8 is a structural diagram of an information receiving device provided by an embodiment of the present disclosure;

[0153] FIG9 is a structural diagram of a terminal provided in an embodiment of the present disclosure;

[0154] FIG10 is a structural diagram of a network device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0155] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0156] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0157] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0158] In the embodiment of the present disclosure, the terminal sends auxiliary information to the network, so that the network can directly obtain the PSER of the uplink PDU Set or calculate the PSER of the uplink PDU Set based on the auxiliary information.

[0159] As shown in FIG3 , an embodiment of the present disclosure provides an information sending method, which is applied to a terminal and includes:

[0160] Step 301: Send auxiliary information to the network device, where the auxiliary information includes first information and / or second information, wherein the first information is the PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the quality of service flow (QoS flow) of the terminal, the radio bearer (Radio Bearer, RB) of the terminal, or the logical channel (Logical CHannel, LCH) of the terminal.

[0161] Here, the terminal sends auxiliary information to the network device. When the auxiliary information includes the first information, the network device can directly obtain the PSER of the PDU Set of the target object in the uplink transmission direction from the auxiliary information; when the auxiliary information includes the second information, the network device can calculate the PSER of the PDU Set of the target object in the uplink transmission direction based on the second information.

[0162] Specifically, the second information may include the first sub-information and / or the second sub-information; wherein,

[0163] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; and a second number of PDU Sets to be sent by the target object in an uplink transmission direction. Here, the higher layer may be a relevant protocol layer of a core network, such as an Internet Protocol (IP) layer.

[0164] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the Packet Data Convergence Protocol (PDCP) PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0165] When the second sub-information includes the serial number of the PDU Set that was not successfully transmitted in the uplink transmission direction of the target object, the network device can count the number of PDU Sets that were not successfully transmitted in the uplink transmission direction of the target object based on the serial number of the above-mentioned PDU Set that was not successfully transmitted.

[0166] Similarly, when the second sub-information includes the serial number of the PDCP PDU that is not successfully transmitted by the target object in the uplink transmission direction and the identification information of whether the PDCP PDU belongs to a PDU Set, the network device can count the PDU Sets that are not successfully transmitted based on the serial number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction and the identification information of whether the PDCP PDU belongs to a PDU Set, thereby obtaining the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction.

[0167] In an embodiment of the present disclosure, the terminal obtains the number of unsuccessfully transmitted PDU Sets or PDCP PDUs that are not successfully transmitted in the uplink transmission direction based on the statistical target object, or records the serial number of the unsuccessfully transmitted PDU Set, or records the serial number of the unsuccessfully transmitted PDCP PDU and identification information of whether the PDCP PDU belongs to a PDU Set.

[0168] Specifically, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction may include at least one of the following:

[0169] (1) PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration.

[0170] Here, when the PDCP discard timer times out, the terminal will discard the corresponding PDCP PDU, thereby causing the PDU Set to which the PDCP PDU belongs to fail to be transmitted. When the PDCP Set discard timer times out, the terminal will discard the corresponding PDCP Set, thereby causing the PDU Set to fail to be transmitted.

[0171] (2) PDU Sets discarded due to transmission failures due to channel quality issues.

[0172] Here, due to reasons such as poor channel quality, data transmission may fail, resulting in the relevant PDU Set being discarded.

[0173] In an embodiment of the present disclosure, the terminal may carry the auxiliary information through a UE Assistance Information (UAI) message and / or a Packet Data Convergence Protocol (PDCP) control PDU. That is, the terminal may send the auxiliary information to a network device through a UAI message and / or a PDCP control PDU. When sending auxiliary information through a UAI message and a PDCP control PDU, part of the auxiliary information may be carried in the UAI message, and the other part may be carried in the PDCP control PDU. For example, the first information is carried in a UAI message, and the second information is carried in a PDCP control PDU; for another example, the first sub-information is carried in a UAI message, and the second sub-information is carried in a PDCP control PDU.

[0174] In the disclosed embodiment, the terminal may execute step 301 above if the auxiliary information reporting trigger condition is met. Therefore, before step 301 above, the network device may further detect whether the auxiliary information reporting trigger condition is met; if the auxiliary information reporting trigger condition is met, step 301 is executed to send the auxiliary information to the network device. Here, the auxiliary information reporting trigger condition includes at least one of the following: periodic triggering and event triggering.

[0175] Periodic triggering is to trigger the sending of auxiliary information according to a preset period, for example, sending it once every preset time interval. Event triggering is a trigger based on an event. The event in the event triggering includes at least one of a first event and a second event;

[0176] (1) The first event is: the number of PDU Sets that are unsuccessfully transmitted by the target object in the uplink transmission direction reaches a first threshold. Here, the first threshold can be a threshold set by the terminal or a threshold configured for the terminal by a network device. The specific value of the threshold can be set based on requirements such as the data transmission performance of the target object, and is not specifically limited in this embodiment of the present disclosure.

[0177] (2) The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted. Here, the second event means that as long as a PDU Set of the target object in the uplink transmission direction is not successfully transmitted, the auxiliary information sending process of step 301 is triggered.

[0178] In order to provide the network device with a packet error rate (PER) of the target object in the uplink transmission direction, the auxiliary information sent by the terminal may further include third information; wherein the third information includes at least one of the following:

[0179] (1) PER of the target object in the uplink transmission direction;

[0180] (2) a fourth number of PDCP PDUs to be sent by the target object in the uplink transmission direction;

[0181] (3) The reason for unsuccessful transmission of the PDCP PDU of the target object in the uplink transmission direction, wherein the reason includes at least one of the following:

[0182] The PDCP PDU has been transmitted but failed to be transmitted;

[0183] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0184] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0185] Here, the terminal may directly carry the PER of the target object in the uplink transmission direction in the auxiliary information, or may send the above items (2) and (3) so that the network device can calculate the PER of the target object in the uplink transmission direction based on items (2) and (3).

[0186] In addition, in an embodiment of the present disclosure, the auxiliary information sent by the terminal may be data collected by the terminal for the target object within a preset time period. For example, for the first information, it may be the PSER of the PDU Set of the target object in the uplink transmission direction within the preset time period; for the first sub-information, it may include at least one of the following information: the first number of PDU Sets belonging to the target object received from the upper layer within the preset time period; the second number of PDU Sets to be sent by the target object in the uplink transmission direction within the preset time period; for the second sub-information, it may include at least one of the following information: the third number of PDU Sets that were not successfully transmitted by the target object in the uplink transmission direction within the preset time period; the serial number of the PDU Set that was not successfully transmitted by the target object in the uplink transmission direction within the preset time period; the serial number of the PDCP PDU that was not successfully transmitted by the target object in the uplink transmission direction within the preset time period, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0187] The preset time period is a time period of preset length, and the terminal can determine the preset time period based on pre-configuration information or protocol agreement. Of course, it can also be configured by the network device. In this case, the terminal can receive first configuration information sent by the network device and determine the preset time period based on the first configuration information.

[0188] Optionally, in an embodiment of the present disclosure, the terminal sends the auxiliary information, which may specifically include: based on periodic triggering, the terminal sends the first sub-information in the auxiliary information to the network device, the first sub-information is carried by the UAI message, and the period of the periodic trigger is the preset time period; and based on the second event in the event triggering, the terminal sends the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction, or the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction and the identification information of whether the PDCP PDU belongs to a PDU Set to the network device through the PDCP control PDU.

[0189] In this way, the network device can obtain the first number of PDU Sets belonging to the target object received by the terminal from the upper layer within the most recent preset time period, or the second number of PDU Sets to be sent by the target object in the uplink transmission direction, based on the first sub-information received most recently; and count the third number of PDU Sets that were not successfully transmitted in the uplink transmission direction of the target object based on the PDCP control PDU received within the most recent preset time period; then, determine the ratio of the third number to the first number as the PSER of the target object in the uplink transmission direction, or determine the ratio of the third number to the second number as the PSER of the target object in the uplink transmission direction. Here, the most recent preset time period refers to the time period from the first time to the second time, the second time is the reception time of the first sub-information received most recently, the first time is before the second time, and is separated from the second time by the preset time period.

[0190] Referring to FIG. 4 , the information receiving method provided in an embodiment of the present disclosure is applied to a network device and includes:

[0191] Step 401: Receive auxiliary information sent by the terminal, where the auxiliary information includes first information and / or second information, wherein the first information is the PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel of the terminal.

[0192] Specifically, the network device can receive the UAI message and / or PDCP control PDU sent by the terminal, and the UAI message and / or PDCP control PDU carries the auxiliary information, so that the network device can obtain the auxiliary information from the UAI message and / or PDCP control PDU.

[0193] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0194] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0195] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0196] Here, the PDU Set of the target object that is not successfully transmitted in the uplink transmission direction includes at least one of the following: a PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration; a PDU Set discarded due to transmission failure due to channel quality reasons.

[0197] Through the above steps, the network device of the embodiment of the present disclosure can obtain the PSER of the target object on the terminal side in the uplink transmission direction based on the auxiliary information, thereby realizing the reporting of the PSER.

[0198] For example, when the auxiliary information includes the second information, the network device may determine the PSER of the target object in the uplink transmission direction according to the second information.

[0199] Specifically, the network device can obtain, based on the first sub-information, the first number of PDU Sets belonging to the target object received by the terminal from the upper layer or the second number of PDU Sets to be sent by the target object in the uplink transmission direction; and obtain, based on the second sub-information, the third number of PDU Sets that were not successfully transmitted by the target object in the uplink transmission direction; and then, determine the ratio of the third number to the first number as the PSER of the target object in the uplink transmission direction, or determine the ratio of the third number to the second number as the PSER of the target object in the uplink transmission direction.

[0200] After step 401, the network device may adjust the reordering window of the radio link control (RLC) entity corresponding to the target object based on the auxiliary information. For example, the reordering window of the RLC entity of the target object may be adjusted according to the PSER, such as by updating the lower boundary of the reordering window.

[0201] Optionally, in the embodiment of the present disclosure, the auxiliary information may further include third information; wherein the third information includes at least one of the following:

[0202] The packet error rate PER of the target object in the uplink transmission direction;

[0203] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0204] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0205] The PDCP PDU has been transmitted but failed to be transmitted;

[0206] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0207] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0208] In the case where the third information includes the fourth number of PDCP PDUs to be sent by the target object in the uplink transmission direction and the reason why the target object failed to successfully transmit the PDCP PDU in the uplink transmission direction, the network device can obtain, based on the third information, the fourth number of PDCP PDUs to be sent by the target object in the uplink transmission direction and the fifth number of PDCP PDUs whose reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted; and then, determine the ratio of the fifth number to the fourth number as the PER of the target object in the uplink transmission direction.

[0209] It can be seen that when calculating PER, the embodiment of the present disclosure does not include as part of the fifth quantity the data packets whose unsuccessful transmission is caused by the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs, resulting in the discard of the PDCP PDU, and the expiration of the PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs, resulting in the discard of the PDCP PDU.

[0210] In addition, the auxiliary information sent by the terminal may be data collected by the terminal for the target object within a preset time period. The network device may send first configuration information to the terminal, where the first configuration information is used to configure the preset time period. Of course, the preset time period may also be determined by the terminal based on pre-configured information or a protocol agreement.

[0211] Optionally, in an embodiment of the present disclosure, the auxiliary information may be carried by a UAI message and a PDCP control PDU. The network device receives the first sub-information in the auxiliary information periodically sent by the terminal, where the period is the preset time period; and receives the sequence number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction, or the sequence number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction and identification information of whether the PDCP PDU belongs to a PDU Set, sent to the network device by the PDCP control PDU based on the second event in the event trigger.

[0212] The network device can obtain, based on the first sub-information received most recently, the first number of PDU Sets belonging to the target object received by the terminal from the upper layer within the most recent preset time period, or the second number of PDU Sets to be sent by the target object in the uplink transmission direction; and, based on the PDCP control PDU received within the most recent preset time period, count the third number of PDU Sets that were not successfully transmitted by the target object in the uplink transmission direction; then, determine the ratio of the third number to the first number as the PSER of the target object in the uplink transmission direction, or determine the ratio of the third number to the second number as the PSER of the target object in the uplink transmission direction. Here, the most recent preset time period refers to the time period from the first time to the second time, the second time is the reception time of the first sub-information received most recently, the first time is before the second time, and is separated from the second time by the preset time period.

[0213] In order to better understand the above embodiments, the present disclosure is further described below through several examples.

[0214] Example 1: Auxiliary information is carried via UAI messages

[0215] This example 1 includes the following steps:

[0216] Step S101: The terminal determines whether a triggering condition for sending auxiliary information is met.

[0217] The triggering conditions for sending the auxiliary information include but are not limited to one of the following:

[0218] 1) Periodic triggering;

[0219] 2) Event triggering.

[0220] The period of the periodic triggering may be configured or pre-configured by the network, for example, the configured period is T. The event in the event triggering includes but is not limited to one of the following:

[0221] (1) The number of unsuccessfully transmitted PDU Sets reaches a first threshold, which may be pre-configured or network-configured.

[0222] (2) Any PDU Set of the terminal is not successfully transmitted, for example, the terminal discards a PDU Set.

[0223] Once the triggering condition for sending the auxiliary information is met, the terminal sends the auxiliary information to the network device. The auxiliary information may be carried by, but is not limited to, a UAI message.

[0224] Step S102: The terminal sends auxiliary information to the network device.

[0225] In step S102, the terminal sends auxiliary information to the network device. Specifically, in this example, the terminal sends a UAI message carrying the auxiliary information to the network device. The auxiliary information includes the first information and / or the second information described above.

[0226] In this example, if the auxiliary information includes second information, that is, information used to determine the PSER of the target object in the uplink transmission direction, the second information includes but is not limited to one or more of the following:

[0227] 1) The number of PDU Sets that the terminal failed to transmit successfully in the uplink direction;

[0228] 2) The number of PDU Sets received by the terminal from the upper layer or the number of PDU Sets to be sent by the terminal;

[0229] 3) Sequence numbers of the PDCP PDUs corresponding to multiple PDU sets that were not successfully transmitted by the terminal (which may be start and end sequence numbers or all PDCP PDU sequence numbers) and identification information of whether the PDCP PDUs belong to one PDU Set.

[0230] Among them, the number of PDU Sets that the terminal failed to transmit successfully in the uplink transmission direction, the number of PDU Sets received by the terminal from the upper layer or the number of PDU Sets to be sent by the terminal, and the sequence numbers of the PDCP PDUs corresponding to multiple PDU sets that the terminal failed to transmit successfully can be statistical data within a period of time (for example, within the T time period).

[0231] The length of the T time period is configured or pre-configured by the network device.

[0232] The unsuccessfully transmitted PDU Set includes but is not limited to one or more of the following:

[0233] 1) PDU Set discarded due to PDCP discard timer expiration;

[0234] 2) PDU Set discarded due to transmission failure caused by channel quality issues.

[0235] Step S103: The network device performs relevant operations based on the auxiliary information.

[0236] After receiving the auxiliary information, the network device may perform at least one of the following operations:

[0237] 1) Adjusting the reordering window of the RLC entity corresponding to the PDU Set, such as updating the lower boundary of the reordering window;

[0238] 2) Calculating the PSER according to the second information in the auxiliary information.

[0239] For example, assume that the auxiliary information contains M PDU Sets to be sent by the terminal within a time period T, and N PDU Sets that were not successfully transmitted within the time period T, then PSER = N / M. The statistical granularity of the PSER can be based on each bearer, each logical channel, or each data flow (QoS flow).

[0240] Example 2: Auxiliary information is carried via PDCP Control PDU

[0241] This example 2 includes the following steps:

[0242] Step S201: The terminal determines whether a triggering condition for sending auxiliary information is met.

[0243] The triggering conditions for sending the auxiliary information include but are not limited to one of the following:

[0244] 1) Periodic triggering;

[0245] 2) Event triggering.

[0246] The period of the periodic triggering may be configured or pre-configured by the network, for example, the configured period is T. The event in the event triggering includes but is not limited to one of the following:

[0247] (1) The number of unsuccessfully transmitted PDU Sets reaches a first threshold, which may be pre-configured or network-configured.

[0248] (2) Any PDU Set in the QoS flow corresponding to the terminal is not successfully transmitted, for example, the terminal discards a PDU Set.

[0249] Once the triggering condition for sending the auxiliary information is met, the terminal sends the auxiliary information to the network device. The auxiliary information may be, but is not limited to, a PDCP Control PDU. In this example, the auxiliary information is carried by a PDCP Control PDU. The auxiliary information may include the first information and / or the second information described above.

[0250] Optionally, the PDCP Control PDU may carry a sequence number (SN) of a PDCP PDU that was not successfully sent by the transmitter. The unsuccessfully sent PDCP PDU includes a PDCP PDU discarded due to a PDCP discard timer expiration and / or a PDCP PDU discarded due to a transmission failure due to channel quality reasons.

[0251] A format of a PDCP Control PDU is shown in Figure 5. The meanings of the various fields in the PDCP Control PDU shown in Figure 5 are as follows:

[0252] -D / C: used to indicate that the PDCP PDU is a PDCP control PDU.

[0253] -PDU type (type): used to indicate the type of PDCP Control PDU. For example, 100 may be used to indicate that the PDCP Control PDU is used to transmit the auxiliary information in this document.

[0254] -PDU Set tx num: used to indicate the number of PDU Sets to be sent by the transmitter within the T time period.

[0255] -PDU Set dis num: used to indicate the number of PDU Sets that the sender failed to send within the T time period.

[0256] -T: indicates the length of the statistical time period T.

[0257] -FDC: used to indicate the count value or SN value of the first discarded PDCP PDU within the T time period.

[0258] -Bitmap: Variable length, used to indicate whether each PDCP PDU is discarded starting from FDC.

[0259] Step S202: The terminal sends auxiliary information to the network device.

[0260] In step S202, the terminal sends auxiliary information to the network device. If the auxiliary information is used to indicate the PDU Set that the terminal failed to transmit in the uplink transmission direction, the content of the auxiliary information includes but is not limited to one or more of the following:

[0261] 1) The sequence number of the PDCP PDU corresponding to the single PDU set that was not successfully transmitted (can be the start and end sequence numbers or the sequence numbers of all PDCP PDUs)

[0262] 2) The number of PDU Sets received by the terminal from the upper layer or the number of PDU Sets to be sent by the terminal;

[0263] 3) Sequence numbers of the PDCP PDUs corresponding to multiple PDU sets that were not successfully transmitted by the terminal.

[0264] Among them, the number of PDU Sets received by the terminal from the upper layer, the number of PDU Sets to be sent by the terminal, and the sequence numbers of PDCP PDUs corresponding to multiple PDU sets that the terminal failed to transmit successfully can be statistical data within a period of time (for example, within the T time period).

[0265] The length of the T time period is configured or pre-configured by the network device.

[0266] The unsuccessfully transmitted PDU Set includes but is not limited to one or more of the following:

[0267] 1) PDU Set discarded due to PDCP discard timer expiration;

[0268] 2) PDU Set discarded due to transmission failure caused by channel quality issues.

[0269] Step S203: The network device performs relevant operations based on the auxiliary information.

[0270] After receiving the auxiliary information, the network device may perform at least one of the following operations:

[0271] 1) Adjust the reordering window of the RLC entity corresponding to the PDU Set, such as updating the lower boundary of the reordering window.

[0272] 2) Calculate the PSER based on the auxiliary information.

[0273] 3) Calculating a packet error rate (PER) based on the auxiliary information.

[0274] When calculating PER, the numerator needs to subtract the number of PDUs that are discarded due to the discarding of other PDUs in the PDU Set.

[0275] The PSER is calculated based on the auxiliary information, as shown in the following example:

[0276] Assuming that the number of PDU Sets to be sent by the terminal within the time period T included in the auxiliary information is M, and the number of PDU Sets not successfully transmitted within the time period T is N, then PSER = N / M. The statistical granularity of the PSER can be based on each bearer, each logical channel, or each QoS flow.

[0277] The PER is calculated based on the auxiliary information, as shown in the following example:

[0278] Assume that the number of PDCP PDUs to be transmitted by the terminal within a time period T, as contained in the auxiliary information, is M, and the total number of PDCP PDUs discarded within the time period is N. Of these N PDCP PDUs, the number of associated PDUs discarded due to PDU Set integrated handling (PSIHI) is P. These P PDCP PDUs are subtracted from the N PDCP PDUs described above. Therefore, PER = (NP) / M.

[0279] Example 3: Auxiliary information is carried via UAI message and PDCP Control PDU

[0280] In this example, the auxiliary information is carried via the UAI message and the PDCP Control PDU. For example, the UAI message transmits the first sub-information of the second information described above, such as the total number of PDU Sets received by the terminal from the upper layer or required to be sent by the terminal within a period of time. The PDCP Control PDU transmits the second sub-information of the second information described above, such as information indicating each discarded PDU Set.

[0281] This example 3 includes the following steps:

[0282] Step S301: The terminal determines whether a triggering condition for sending a UAI message is met.

[0283] The triggering condition for sending the UAI message includes periodic triggering.

[0284] The period of the periodic triggering may be configured or pre-configured by the network, for example, the configured period is T.

[0285] Once the trigger condition for periodically sending the UAI message is met, the terminal sends the first sub-information in the auxiliary information to the network device. For example, the UAI message can be used to indicate the total number of PDU Sets received by the terminal from the upper layer or the total number of PDU Sets that the terminal needs to send within a period of time.

[0286] Step S302: The terminal determines whether a triggering condition for sending a PDCP Control PDU is met.

[0287] The triggering condition of the PDCP Control PDU includes event triggering, where the event is: at least one PDU Set is not successfully transmitted by the terminal or at least one PDU Set corresponding to a DRB specified by the terminal is not successfully transmitted, for example, the terminal discards a PDU Set.

[0288] Once the triggering condition of the PDCP Control PDU is met, the terminal sends the second sub-information in the auxiliary information to the network device. The second sub-information can be carried by, but is not limited to, the PDCP Control PDU.

[0289] Optionally, the PDCP Control PDU may also carry the SN of the PDU that was not successfully sent by the transmitter or indicate the existence of a PDU Set that was not successfully sent. The unsuccessfully sent PDU includes the PDU discarded due to the PDCP discard timer expiration and / or the PDU discarded due to transmission failure due to channel quality reasons.

[0290] Taking the example that the PDCP Control PDU can also carry the SN of the PDU that the sender has not successfully sent, a format of the PDCP Control PDU is shown in Figure 6. The meanings of the various fields in the PDCP Control PDU shown in Figure 6 are as follows:

[0291] -D / C: used to indicate that the PDCP PDU is a PDCP control PDU.

[0292] -PDU type: used to indicate the type of PDCP Control PDU. For example, 100 can be used to indicate that the control PDU is used to transmit auxiliary information.

[0293] -PDU Set SN: used to indicate the SN of the PDCP Set that was not successfully sent.

[0294] -PDU Set dis num: used to indicate the number of PDU Sets that the sender failed to send within the T time period.

[0295] -T: used to indicate the statistical period or statistical time corresponding to the PDU Set SN.

[0296] -FDC: used to indicate the COUNT value or SN value of the first discarded PDU in the PDU Set identified by the PDU Set SN.

[0297] -Bitmap: Variable length, used to indicate whether each PDU is discarded starting from FDC.

[0298] Step S303: The network device performs relevant operations based on the auxiliary information.

[0299] Specifically, after receiving the auxiliary information, the network device may perform at least one of the following operations:

[0300] -Adjust the reordering window of the RLC entity corresponding to the PDU Set, such as updating the lower boundary of the reordering window;

[0301] - calculating the PSER based on the auxiliary information;

[0302] - Calculating PER based on the auxiliary information.

[0303] For example, based on the UAI message, the network device can obtain a first number of PDU Sets belonging to the target object received by the terminal from the upper layer within the most recent preset time period, or a second number of PDU Sets to be sent by the target object in the uplink transmission direction; based on the PDCP control PDUs received within the most recent preset time period, the network device can count a third number of PDU Sets that were not successfully transmitted by the target object in the uplink transmission direction. Then, the ratio of the third number to the first number can be determined as the PSER of the target object in the uplink transmission direction, or the ratio of the third number to the second number can be determined as the PSER of the target object in the uplink transmission direction.

[0304] For another example, when calculating PER, the numerator needs to subtract the number of PDUs that are discarded due to the discarding of other PDUs in the PDU Set.

[0305] For example, the network device receives the number M of PDU Sets to be sent by the terminal within a time period T as determined by the UAI. It then determines the number N of PDU Sets that the terminal failed to send within that time period based on the PDCP Control PDUs received during that time period. The PSER is then calculated based on this information using the following formula: PSER = N / M. The PSER can be calculated at a per-bearer, per-logical-channel, or per-QoS-flow granularity.

[0306] Example 4: Reporting PSER directly via UAI message or PDCP Control PDU

[0307] This example 4 includes the following steps:

[0308] Step S401: The terminal determines the PSER.

[0309] The terminal calculates the PSER based on the number M of PDU Sets to be sent by the terminal within the time period T and the number N of PDU Sets that the terminal failed to send within the time period T. The calculation formula is as follows: PSER = N / M. The statistical granularity of the PSER can be based on each bearer, each logical channel, or each data flow QoS flow.

[0310] Step S402: The terminal reports the PSER to the network device via UAI or PDCP Control PDU.

[0311] The network device receives the PSER reported by the terminal, thereby directly obtaining the PSER.

[0312] As can be seen from the above examples, the embodiments of the present disclosure send auxiliary information to the network device through the terminal, where the auxiliary information is used to indicate the PDU Set that the terminal failed to transmit in the uplink transmission direction and / or the PSER determined by the terminal, thereby assisting the network device in adjusting the reordering window and / or determining the PSER / PER.

[0313] The technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5G System, 5GS), etc.

[0314] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0315] The network side device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0316] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding transmission, or beamforming transmission.

[0317] As shown in FIG7 , an embodiment of the present disclosure further provides a terminal, including a processor 700, a transceiver 710, a memory 720, and a program stored in the memory 720 and executable on the processor 700. The transceiver 710 is connected to the processor 700 and the memory 720 via a bus interface. The processor 700 is configured to read the program in the memory and execute the following process:

[0318] Auxiliary information is sent to the network device through the transceiver 710, and the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the packet data unit set PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal or the logical channel of the terminal.

[0319] The transceiver 710 is configured to receive and send data under the control of the processor 700 .

[0320] In FIG7 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 710 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 730 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0321] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0322] Optionally, the processor 700 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0323] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0324] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0325] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0326] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0327] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0328] PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration;

[0329] PDU Set discarded due to transmission failure due to channel quality issues.

[0330] Optionally, the processor 700 further reads the computer program in the memory and performs the following operations: before sending the auxiliary information to the network device, detecting whether an auxiliary information reporting triggering condition is met;

[0331] When an auxiliary information reporting trigger condition is met, sending the auxiliary information to the network device;

[0332] The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

[0333] Optionally, the event in the event trigger includes at least one of a first event and a second event;

[0334] The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold;

[0335] The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted.

[0336] Optionally, the processor 700 further reads the computer program in the memory and performs the following operations: sending the auxiliary information to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

[0337] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0338] The packet error rate PER of the target object in the uplink transmission direction;

[0339] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0340] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0341] The PDCP PDU has been transmitted but failed to be transmitted;

[0342] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0343] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0344] Optionally, the auxiliary information is data collected from the target object within a preset time period.

[0345] Optionally, the processor 700 further reads the computer program in the memory and performs the following operations: receiving, through a transceiver, first configuration information sent by a network device, and determining the preset time period according to the first configuration information;

[0346] or,

[0347] The preset time period is determined according to pre-configuration information or protocol agreement.

[0348] It should be noted here that the above-mentioned terminal provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0349] At least one embodiment of the present disclosure also provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the various processes in the method embodiment applied to the terminal are implemented, and the same technical effect can be achieved. To avoid repetition, they will not be described here.

[0350] As shown in FIG8 , an embodiment of the present disclosure further provides a network device, including a processor 800, a transceiver 810, a memory 820, and a program stored in the memory 820 and executable on the processor 800. The transceiver 810 is connected to the processor 800 and the memory 820 via a bus interface. The processor 800 is configured to read the program in the memory and execute the following process:

[0351] Auxiliary information sent by the terminal is received through the transceiver 810, and the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the wireless bearer RB of the terminal or the logical channel of the terminal.

[0352] The transceiver 810 is configured to receive and send data under the control of the processor 800 .

[0353] In FIG8 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 810 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0354] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.

[0355] The processor 800 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0356] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0357] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0358] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0359] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0360] PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration;

[0361] PDU Set discarded due to transmission failure due to channel quality issues.

[0362] Optionally, when the auxiliary information includes the second information, the processor 800 is configured to read the computer program in the memory and perform the following operations: determining a PSER of the target object in an uplink transmission direction according to the second information.

[0363] Optionally, the processor 800 is configured to read the computer program in the memory and perform the following operations: obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0364] Obtaining, according to the second sub-information, a third number of PDU Sets that were not successfully transmitted by the target object in an uplink transmission direction;

[0365] A ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or a ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

[0366] Optionally, the processor 800 is configured to read the computer program in the memory and perform the following operations: receiving a UAI message and / or PDCP control PDU sent by the terminal, where the UAI message and / or PDCP control PDU carries the auxiliary information.

[0367] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0368] The packet error rate PER of the target object in the uplink transmission direction;

[0369] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0370] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0371] The PDCP PDU has been transmitted but failed to be transmitted;

[0372] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0373] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0374] Optionally, the processor 800 is configured to read the computer program in the memory and perform the following operations: obtain, based on the third information, a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction, and a fifth number of PDCP PDUs for which the reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted;

[0375] A ratio of the fifth number to the fourth number is determined as the PER of the target object in the uplink transmission direction.

[0376] Optionally, the processor 800 is configured to read the computer program in the memory and perform the following operations: adjusting a reordering window of an RLC entity corresponding to the target object according to the auxiliary information.

[0377] Optionally, the auxiliary information is data collected by the terminal for the target object within a preset time period.

[0378] Optionally, the processor 800 is configured to read the computer program in the memory and perform the following operations: sending first configuration information to the terminal, where the first configuration information is used to configure the preset time period.

[0379] It should be noted here that the above-mentioned network device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the network device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0380] At least one embodiment of the present disclosure further provides a network device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the various processes in the method embodiment applied to the network device are implemented, and the same technical effect can be achieved. To avoid repetition, they will not be described here.

[0381] As shown in FIG9 , an embodiment of the present disclosure provides an information sending device 900, which is applied to a terminal and includes:

[0382] The first sending unit 901 is used to send auxiliary information to the network device, where the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the packet data unit set PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the radio bearer RB of the terminal, or the logical channel of the terminal.

[0383] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0384] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0385] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0386] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0387] PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration;

[0388] PDU Set discarded due to transmission failure due to channel quality issues.

[0389] Optionally, the above device further includes:

[0390] a detection unit, configured to detect whether a trigger condition for reporting auxiliary information is met before sending the auxiliary information to the network device;

[0391] The first sending unit 901 is further configured to: send the auxiliary information to the network device when the auxiliary information reporting triggering condition is met;

[0392] The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

[0393] Optionally, the event in the event trigger includes at least one of a first event and a second event;

[0394] The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold;

[0395] The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted.

[0396] Optionally, the first sending unit 901 is further configured to:

[0397] The auxiliary information is sent to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

[0398] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0399] The packet error rate PER of the target object in the uplink transmission direction;

[0400] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0401] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0402] The PDCP PDU has been transmitted but failed to be transmitted;

[0403] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0404] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0405] Optionally, the auxiliary information is data collected from the target object within a preset time period.

[0406] Optionally, the above device further includes:

[0407] A first receiving unit, configured to receive first configuration information sent by a network device, and determine the preset time period according to the first configuration information;

[0408] or,

[0409] The determining unit is configured to determine the preset time period according to pre-configured information or protocol agreement.

[0410] It should be noted that the device embodiment is a device that corresponds one-to-one to the above-mentioned information sending method embodiment. All implementation methods in the above-mentioned method embodiment are applicable to the device embodiment and can achieve the same technical effects.

[0411] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the method embodiment shown in Figure 6, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0412] As shown in FIG10 , an information receiving apparatus 1000 according to an embodiment of the present disclosure is applied to a network device and includes:

[0413] The first receiving unit 1001 is used to receive auxiliary information sent by the terminal, where the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the QoS flow of the terminal, the radio bearer RB of the terminal, or the logical channel of the terminal.

[0414] Optionally, the second information includes first sub-information and / or second sub-information; wherein,

[0415] The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0416] The second sub-information includes at least one of the following information: the third number of PDU Sets that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDU Set that the target object has not successfully transmitted in the uplink transmission direction; the serial number of the PDCP PDU that the target object has not successfully transmitted in the uplink transmission direction, and identification information of whether the PDCP PDU belongs to a PDU Set.

[0417] Optionally, the PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following:

[0418] PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration;

[0419] PDU Set discarded due to transmission failure due to channel quality issues.

[0420] Optionally, the above device further includes:

[0421] The first obtaining unit is configured to determine the PSER of the target object in an uplink transmission direction according to the second information when the auxiliary information includes the second information.

[0422] Optionally, the first obtaining unit is further configured to:

[0423] Obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction;

[0424] Obtaining, according to the second sub-information, a third number of PDU Sets that were not successfully transmitted by the target object in an uplink transmission direction;

[0425] A ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or a ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

[0426] Optionally, the first receiving unit is further configured to:

[0427] A UAI message and / or a PDCP control PDU sent by the terminal is received, where the UAI message and / or the PDCP control PDU carries the auxiliary information.

[0428] Optionally, the auxiliary information further includes third information; wherein the third information includes at least one of the following:

[0429] The packet error rate PER of the target object in the uplink transmission direction;

[0430] a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction;

[0431] The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, where the reason includes at least one of the following:

[0432] The PDCP PDU has been transmitted but failed to be transmitted;

[0433] The PDCP PDU is discarded due to the expiration of the PDCP discard timers corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs;

[0434] The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

[0435] Optionally, the above device further includes:

[0436] The second obtaining unit is used to obtain, based on the third information, a fourth number of PDCP PDUs to be sent by the target object in the uplink transmission direction and a fifth number of PDCP PDUs whose transmission was unsuccessful because the PDCP PDU has been transmitted but failed to be transmitted; and determine the ratio of the fifth number to the fourth number as the PER of the target object in the uplink transmission direction.

[0437] Optionally, the above device further includes:

[0438] An adjusting unit is configured to adjust a reordering window of an RLC entity corresponding to the target object according to the auxiliary information.

[0439] Optionally, the auxiliary information is data collected by the terminal for the target object within a preset time period.

[0440] Optionally, the above device further includes:

[0441] The first sending unit is configured to send first configuration information to the terminal, where the first configuration information is used to configure the preset time period.

[0442] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the method embodiment shown in Figure 8, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0443] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the method embodiment shown in Figure 8, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0444] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0445] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0446] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0447] The embodiment of the present disclosure also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here. Among them, the readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical storage (such as compact disk (CD), digital video disc (DVD), Blu-ray Disc (BD), high-definition versatile disc (HVD), etc.), and semiconductor memory (such as read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0448] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0449] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0450] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present disclosure, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present disclosure and the claims, all of which are protected by the present disclosure.

Claims

1. A method for sending information, applied to a terminal, the method comprising: Auxiliary information is sent to a network device, wherein the auxiliary information includes first information and / or second information, wherein the first information is an error rate PSER of a packet data unit set PDU Set of a target object in an uplink transmission direction, and the second information is information used to determine the PSER of the target object in an uplink transmission direction; wherein the target object is the terminal, the service quality flow QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel LCH of the terminal.

2. The method of claim 1, wherein: The second information includes the first sub-information and / or the second sub-information; wherein, The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction; The second sub-information includes at least one of the following information: the third number of PDU Sets that are not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDU Set that is not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction of the target object, and identification information of whether the PDCP PDU belongs to a PDU Set.

3. The method of claim 2, wherein: The PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following: PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration; The PDU Set that is discarded due to transmission failure due to channel quality issues.

4. The method of claim 1, wherein: Before sending the auxiliary information to the network device, the method further includes: Detect whether the auxiliary information reporting triggering conditions are met; When an auxiliary information reporting trigger condition is met, sending the auxiliary information to the network device; The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

5. The method of claim 4, wherein: The event in the event trigger includes at least one of a first event and a second event; The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold; The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted.

6. The method of claim 1, wherein: The sending of auxiliary information to the network device comprises: The auxiliary information is sent to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

7. The method of claim 2, wherein: The auxiliary information further includes third information; wherein the third information includes at least one of the following: The packet error rate PER of the target object in the uplink transmission direction; a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction; The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, the reason including at least one of the following: The PDCP PDU has been transmitted but the transmission fails; The PDCP PDU is discarded due to the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs; The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

8. The method according to any one of claims 1 to 7, wherein: The auxiliary information is data collected from the target object within a preset time period.

9. The method of claim 8, further comprising: Receiving first configuration information sent by a network device, and determining the preset time period according to the first configuration information; or, The preset time period is determined according to pre-configuration information or protocol agreement.

10. A method for receiving information, applied to a network device, the method comprising: Auxiliary information sent by a receiving terminal, the auxiliary information including first information and / or second information, wherein the first information is a PDU Set error rate PSER of a target object in an uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the service quality flow QoS flow of the terminal, and the wireless bearer of the terminal. RB or the logical channel LCH of the terminal.

11. The method of claim 10, wherein: The second information includes the first sub-information and / or the second sub-information; wherein, The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction; The second sub-information includes at least one of the following information: the third number of PDU Sets that are not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDU Set that is not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction of the target object, and identification information of whether the PDCP PDU belongs to a PDU Set.

12. The method of claim 11, wherein: The PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following: PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration; The PDU Set that is discarded due to transmission failure due to channel quality issues.

13. The method of claim 11, wherein: In a case where the auxiliary information includes the second information, the method further includes: A PSER of the target object in an uplink transmission direction is determined according to the second information.

14. The method of claim 13, wherein: The determining, according to the second information, a PSER of the target object in an uplink transmission direction includes: Obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction; Obtaining, according to the second sub-information, a third number of PDU Sets that are not successfully transmitted by the target object in an uplink transmission direction; The ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or the ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

15. The method of claim 10, wherein: The auxiliary information sent by the receiving terminal includes: A UAI message and / or a PDCP control PDU sent by the terminal is received, wherein the UAI message and / or the PDCP control PDU carries the auxiliary information.

16. The method of claim 10, wherein: The auxiliary information further includes third information; wherein the third information includes at least one of the following: The packet error rate PER of the target object in the uplink transmission direction; a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction; The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, the reason including at least one of the following: The PDCP PDU has been transmitted but the transmission fails; The PDCP PDU is discarded due to the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs; The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

17. The method of claim 16, further comprising: According to the third information, a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction and a fifth number of PDCP PDUs whose reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted are obtained; A ratio of the fifth number to the fourth number is determined as the PER of the target object in the uplink transmission direction.

18. The method of claim 10, further comprising: A reordering window of the RLC entity corresponding to the target object is adjusted according to the auxiliary information.

19. The method according to any one of claims 10 to 18, wherein: The auxiliary information is data collected by the terminal for the target object within a preset time period.

20. The method of claim 19, further comprising: Sending first configuration information to the terminal, where the first configuration information is used to configure the preset time period.

21. A terminal, comprising: Memory, transceiver, processor: Memory, which stores computer programs; a transceiver for transmitting and receiving data under the control of the processor; The processor reads the computer program in the memory and performs the following operations: The auxiliary information is sent to the network device through the transceiver, and the auxiliary information includes the first information and / or the second information. Two pieces of information, wherein the first information is the error rate PSER of the packet data unit set PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the service quality flow QoS flow of the terminal, the wireless bearer RB of the terminal or the logical channel LCH of the terminal.

22. The terminal according to claim 21, wherein: The second information includes the first sub-information and / or the second sub-information; wherein, The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction; The second sub-information includes at least one of the following information: the third number of PDU Sets that are not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDU Set that is not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction of the target object, and identification information of whether the PDCP PDU belongs to a PDU Set.

23. The terminal according to claim 22, wherein: The PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following: PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration; The PDU Set that is discarded due to transmission failure due to channel quality issues.

24. The terminal according to claim 21, wherein: The processor further reads the computer program in the memory and performs the following operations: Before sending auxiliary information to the network device, detecting whether the auxiliary information reporting triggering condition is met; When an auxiliary information reporting trigger condition is met, sending the auxiliary information to the network device; The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

25. The terminal according to claim 24, wherein: The event in the event trigger includes at least one of a first event and a second event; The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold; The second event is: any PDU Set of the target object in the uplink transmission direction is not successfully transmitted.

26. The terminal according to claim 21, wherein: The processor further reads the computer program in the memory and performs the following operations: The auxiliary information is sent to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

27. The terminal according to claim 22, wherein: The auxiliary information further includes third information; wherein the third information includes at least one of the following: The packet error rate PER of the target object in the uplink transmission direction; a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction; The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, the reason including at least one of the following: The PDCP PDU has been transmitted but the transmission fails; The PDCP PDU is discarded due to the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs; The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

28. The terminal according to any one of claims 21 to 27, wherein: The auxiliary information is data collected from the target object within a preset time period.

29. The terminal according to claim 28, wherein: The processor further reads the computer program in the memory and performs the following operations: Receiving first configuration information sent by a network device through a transceiver, and determining the preset time period according to the first configuration information; or, The preset time period is determined according to pre-configuration information or protocol agreement.

30. A network device comprising: Memory, transceiver, processor: Memory, which stores computer programs; a transceiver for transmitting and receiving data under the control of the processor; The processor reads the computer program in the memory and performs the following operations: Auxiliary information sent by the terminal is received through a transceiver, and the auxiliary information includes first information and / or second information, wherein the first information is the error rate PSER of the PDU Set of the target object in the uplink transmission direction, and the second information is information used to determine the PSER of the target object in the uplink transmission direction; wherein the target object is the terminal, the service quality flow QoS flow of the terminal, the wireless bearer RB of the terminal or the logical channel LCH of the terminal.

31. The network device of claim 30, wherein: The second information includes the first sub-information and / or the second sub-information; wherein, The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction; The second sub-information includes at least one of the following information: the third number of PDU Sets that are not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDU Set that is not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction of the target object, and identification information of whether the PDCP PDU belongs to a PDU Set.

32. The network device of claim 31, wherein: The PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following: PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration; The PDU Set that is discarded due to transmission failure due to channel quality issues.

33. The network device of claim 31, wherein: In a case where the auxiliary information includes the second information, the processor further reads the computer program in the memory and performs the following operations: A PSER of the target object in an uplink transmission direction is determined according to the second information.

34. The network device of claim 33, wherein: The processor further reads the computer program in the memory and performs the following operations: Obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction; Obtaining, according to the second sub-information, a third number of PDU Sets that are not successfully transmitted by the target object in an uplink transmission direction; The ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or the ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

35. The network device of claim 30, wherein: The processor further reads the computer program in the memory and performs the following operations: A UAI message and / or a PDCP control PDU sent by the terminal is received, wherein the UAI message and / or the PDCP control PDU carries the auxiliary information.

36. The network device of claim 30, wherein: The auxiliary information further includes third information; wherein the third information includes at least one of the following: The packet error rate PER of the target object in the uplink transmission direction; a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction; The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, the reason including at least one of the following: The PDCP PDU has been transmitted but the transmission fails; The PDCP PDU is discarded due to the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs; The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

37. The network device of claim 36, wherein: The processor further reads the computer program in the memory and performs the following operations: According to the third information, a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction and a fifth number of PDCP PDUs whose reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted are obtained; A ratio of the fifth number to the fourth number is determined as the PER of the target object in the uplink transmission direction.

38. The network device of claim 30, wherein: The processor further reads the computer program in the memory and performs the following operations: A reordering window of the RLC entity corresponding to the target object is adjusted according to the auxiliary information.

39. The network device according to any one of claims 30 to 38, wherein: The auxiliary information is data collected by the terminal for the target object within a preset time period.

40. The network device of claim 39, wherein: The processor further reads the computer program in the memory and performs the following operations: Sending first configuration information to the terminal, where the first configuration information is used to configure the preset time period.

41. An information sending device, applied to a terminal, comprising: A first sending unit is used to send auxiliary information to a network device, wherein the auxiliary information includes first information and / or second information, wherein the first information is an error rate PSER of a packet data unit set PDU Set of a target object in an uplink transmission direction, and the second information is information used to determine the PSER of the target object in an uplink transmission direction; wherein the target object is the terminal, the service quality flow QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel LCH of the terminal.

42. The apparatus of claim 41, wherein: The second information includes the first sub-information and / or the second sub-information; wherein, The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction; The second sub-information includes at least one of the following information: the third number of PDU Sets that are not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDU Set that is not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction of the target object, and identification information of whether the PDCP PDU belongs to a PDU Set.

43. The apparatus of claim 42, wherein: The PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following: PDU Set discarded due to PDCP discard timer expiration or PDCP Set discard timer expiration; The PDU Set that is discarded due to transmission failure due to channel quality issues.

44. The apparatus of claim 41, further comprising: A detection unit, used to detect whether a trigger condition for reporting auxiliary information is met before sending the auxiliary information to the network device; The first sending unit is further configured to: send the auxiliary information to the network device when an auxiliary information reporting trigger condition is met; The auxiliary information reporting triggering condition includes at least one of the following: periodic triggering and event triggering.

45. The apparatus of claim 44, wherein: The event in the event trigger includes at least one of a first event and a second event; The first event is: the number of PDU Sets that are not successfully transmitted by the target object in the uplink transmission direction reaches a first threshold; The second event is: any PDU Set of the target object in the uplink transmission direction is not Transferred successfully.

46. ​​The apparatus of claim 41, wherein: The first sending unit is further used for: The auxiliary information is sent to the network device through a UE auxiliary information UAI message and / or a packet data convergence protocol PDCP control PDU.

47. The apparatus of claim 42, wherein: The auxiliary information further includes third information; wherein the third information includes at least one of the following: The packet error rate PER of the target object in the uplink transmission direction; a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction; The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, the reason including at least one of the following: The PDCP PDU has been transmitted but the transmission fails; The PDCP PDU is discarded due to the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs; The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

48. The device of any one of claims 41 to 47, wherein: The auxiliary information is data collected from the target object within a preset time period.

49. The apparatus of claim 48, further comprising: A first receiving unit, configured to receive first configuration information sent by a network device, and determine the preset time period according to the first configuration information; or, The determination unit is used to determine the preset time period according to pre-configuration information or protocol agreement.

50. An information receiving device, applied to a network device, comprising: A first receiving unit is used to receive auxiliary information sent by a terminal, the auxiliary information includes first information and / or second information, wherein the first information is an error rate PSER of a PDU Set of a target object in an uplink transmission direction, and the second information is information used to determine the PSER of the target object in an uplink transmission direction; wherein the target object is the terminal, the service quality flow QoS flow of the terminal, the wireless bearer RB of the terminal, or the logical channel LCH of the terminal.

51. The apparatus of claim 50, wherein: The second information includes the first sub-information and / or the second sub-information; wherein, The first sub-information includes at least one of the following information: a first number of PDU Sets belonging to the target object received by the terminal from a higher layer; a second number of PDU Sets to be sent by the target object in an uplink transmission direction; The second sub-information includes at least one of the following information: the third number of PDU Sets that are not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDU Set that is not successfully transmitted in the uplink transmission direction of the target object; the sequence number of the PDCP PDU that is not successfully transmitted in the uplink transmission direction of the target object, and identification information of whether the PDCP PDU belongs to a PDU Set.

52. The apparatus of claim 51, wherein: The PDU Set that is not successfully transmitted by the target object in the uplink transmission direction includes at least one of the following: PDU Set discarded due to PDCP discard timer expiration or PDCP PDU Set discard timer expiration; The PDU Set that is discarded due to transmission failure due to channel quality issues.

53. The apparatus of claim 51, further comprising: The first obtaining unit is configured to determine the PSER of the target object in an uplink transmission direction according to the second information when the auxiliary information includes the second information.

54. The apparatus of claim 53, wherein: The first obtaining unit is further used for: Obtaining, according to the first sub-information, a first number of PDU Sets belonging to the target object received by the terminal from a higher layer or a second number of PDU Sets to be sent by the target object in an uplink transmission direction; Obtaining, according to the second sub-information, a third number of PDU Sets that are not successfully transmitted by the target object in an uplink transmission direction; The ratio of the third number to the first number is determined as the PSER of the target object in the uplink transmission direction, or the ratio of the third number to the second number is determined as the PSER of the target object in the uplink transmission direction.

55. The apparatus of claim 50, wherein: The first receiving unit is further used for: A UAI message and / or a PDCP control PDU sent by the terminal is received, wherein the UAI message and / or the PDCP control PDU carries the auxiliary information.

56. The apparatus of claim 50, wherein: The auxiliary information further includes third information; wherein the third information includes at least one of the following: The packet error rate PER of the target object in the uplink transmission direction; a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction; The reason why the target object fails to successfully transmit the PDCP PDU in the uplink transmission direction, the reason including at least one of the following: The PDCP PDU has been transmitted but the transmission fails; The PDCP PDU is discarded due to the expiration of the PDCP discard timer corresponding to other PDUs in the PDU Set to which the PDCP PDU belongs; The PDCP Set discard timer corresponding to the PDU Set to which the PDCP PDU belongs expires, resulting in the PDCP PDU being discarded.

57. The apparatus of claim 56, further comprising: a second obtaining unit, configured to obtain, according to the third information, a fourth number of PDCP PDUs to be sent by the target object in an uplink transmission direction, and a fifth number of PDCP PDUs for which the reason for unsuccessful transmission is that the PDCP PDU has been transmitted but failed to be transmitted; A ratio of the fifth number to the fourth number is determined as the PER of the target object in the uplink transmission direction.

58. The apparatus of claim 50, further comprising: An adjusting unit is used to adjust the reordering window of the RLC entity corresponding to the target object according to the auxiliary information.

59. The device of any one of claims 50 to 58, wherein: The auxiliary information is data collected by the terminal for the target object within a preset time period.

60. The apparatus of claim 59, further comprising: The first sending unit is used to send first configuration information to the terminal, where the first configuration information is used to configure the preset time period.

61. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the information sending method as described in any one of claims 1 to 9, or implements the steps of the information receiving method as described in any one of claims 10 to 20.

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