WO2023066107A1 - 数据传输方法、装置及终端 - Google Patents

数据传输方法、装置及终端 Download PDF

Info

Publication number
WO2023066107A1
WO2023066107A1 PCT/CN2022/124882 CN2022124882W WO2023066107A1 WO 2023066107 A1 WO2023066107 A1 WO 2023066107A1 CN 2022124882 W CN2022124882 W CN 2022124882W WO 2023066107 A1 WO2023066107 A1 WO 2023066107A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
packet
data unit
terminal
layer
Prior art date
Application number
PCT/CN2022/124882
Other languages
English (en)
French (fr)
Inventor
陈力
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2023066107A1 publication Critical patent/WO2023066107A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular to a data transmission method, device and terminal.
  • Extended reality refers to all real and virtual combined environments and human-computer interactions generated by computer technology and wearable devices. It includes representative forms such as augmented reality (Augmented Reality, AR), mixed reality (Mixed Reality, MR), virtual reality (Virtual Reality, VR), and the interpolation area between them. The levels of virtual worlds range from partial sensory input to fully immersive virtual reality.
  • AR Augmented Reality
  • MR Mixed reality
  • VR Virtual Reality
  • AR Virtual Reality
  • the embodiments of the present application provide a data transmission method, device and terminal, which can ensure the transmission efficiency of data packets and reduce the transmission delay of data packets.
  • the embodiment of the present application provides a data transmission method, including:
  • the terminal When the first data unit to be transmitted by the terminal satisfies a preset discarding condition, and the terminal is in a preset scene and/or the first data unit satisfies the first condition, the terminal abandons the discarding of the first data unit One data unit is discarded.
  • the embodiment of the present application provides a data transmission device, including:
  • a processing module configured to give up processing the first data unit to be transmitted by the terminal when the first data unit to be transmitted meets a preset discarding condition, and the terminal is in a preset scene and/or the first data unit satisfies the first condition. The first data unit is discarded.
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
  • a terminal including a processor and a communication interface, wherein the processor is configured to satisfy a preset discarding condition when the first data unit to be transmitted by the terminal meets a preset discarding condition, and the terminal is in a preset scene and /or when the first data unit satisfies the first condition, abandon discarding the first data unit.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect .
  • a computer program/program product is provided, the computer program/program product is stored in a non-volatile storage medium, and the computer program/program product is executed by at least one processor to implement the first The steps of the method described in the aspect.
  • a communication device configured to perform the steps of the method described in the first aspect.
  • the first data unit satisfies the discarding condition, but other data units in the same packet, or other associated data units may not have completed the transmission. If the first data unit is discarded, the transmission of these data units will be affected. , so the discarding of the first data unit can be abandoned to ensure the transmission efficiency and delay of other data units.
  • FIG. 1 shows a schematic diagram of a wireless communication system
  • Fig. 2 shows the schematic flow chart of the data transmission method of the embodiment of the present application
  • FIG. 3 shows a schematic structural diagram of a data transmission device according to an embodiment of the present application
  • FIG. 4 shows a schematic structural diagram of a communication device according to an embodiment of the present application
  • FIG. 5 shows a schematic diagram of the composition of a terminal in an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • the following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th Generation (6th Generation , 6G) communication system.
  • 6th Generation 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer, TPC), a laptop computer (Laptop Computer, LC) or a notebook Computer, Personal Digital Assistant (PDA), PDA, Netbook, Ultra-Mobile Personal Computer (UMPC), Mobile Internet Device (MID), Wearable Device , WD) or vehicle user equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side equipment, wearable devices include: smart watches, bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Networks, WLAN) access point, wireless fidelity (Wireless Fidelity, WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station does not Limited to specific technical vocabulary, it should be noted that in the embodiment of this application, only the base station in the NR system is taken as an example, but the specific type of the base station is
  • the uplink mainly transmits relatively dense small data packets. These small data packets can carry information such as gestures and control as the input and reference of downlink presentation data; the downlink mainly transmits multimedia data such as video and audio.
  • multimedia data such as video and audio.
  • the timely reception and presentation of these multimedia data provides users with an immersive experience.
  • data packets arrive periodically or quasi-periodically, and the data rate can reach dozens or even hundreds of Mbps.
  • the typical value of the frame rate (Frames Per Second, FPS) is 60 or 120.
  • the interval is approximately 1/FPS second, and these data generally need to be successfully transmitted within 10ms on the air interface, and the transmission success rate must not be lower than 99% or even 99.9%.
  • uplink may also transmit multimedia data such as video and audio. It can also be relaxed, for example, it generally needs to be successfully transmitted within 60ms; the characteristics of downlink data transmission are basically consistent with those of VR services.
  • Degrees of Freedom describe the number of independent parameters used to define the movement of the viewport in 3D space.
  • the user can obtain the information of the new angle of view by turning the head and other actions in the virtual reality experience.
  • the XR user's head turning action can send an uplink signal to inform the base station.
  • the base station After receiving the uplink signal, the base station will schedule the required downlink data for the XR user for use.
  • XR services mainly include video data, audio data, and some control signaling and special data with control functions.
  • XR service transmission mainly involves uplink and downlink video/audio data transmission and interaction between a terminal device (User Equipment, UE) and a new wireless network (such as LTE/NR, etc.).
  • UE User Equipment
  • LTE/NR Long Term Evolution/NR
  • the UE needs to transmit some control signaling and special data with control functions uplink through the wireless network to control the generation of video and audio service data in the XR service sent by the network to the UE. , processing and downlink wireless transmission.
  • control information and special data with control functions include some service control data generated by the UE XR application encoder and control data information contained in the service transmission protocol, for example:
  • I frame or IDR frame or non-field of view (FOV) frame generated by the video encoder I frame or IDR frame or non-field of view (FOV) frame generated by the video encoder
  • User behavior data collected by sensors such as pose/control data, etc.
  • the network can judge user behavior through the reception of these data, such as the above-mentioned user turning head and other actions, and then adjust the content of the video data sent;
  • TCP Transmission Control Protocol
  • ACK Acknowledgment
  • TCP feedback For the transmission control protocol (Transmission Control Protocol, TCP) positive confirmation (Acknowledgment, ACK) signaling (TCP feedback) for downlink audio/video service transmission, the network needs to decide whether it can continue according to whether the corresponding video/audio frame has been confirmed by the UE Send subsequent frames;
  • Real-time Transport Control Protocol (RTCP) ACK signaling is used to control the real-time transmission of data, and confirm the real-time requirements and time synchronization of business data transmission.
  • RTCP Real-time Transport Control Protocol
  • the network usually needs to receive these control signaling and special data with control functions from the UE in a timely and reliable manner to obtain the transmission status of the current service and related necessary control information; the application server needs to further generate subsequent required information based on these information.
  • the transmitted video and audio service data are passed to the wireless network for processing and transmission, and finally these service data are downlinked to the UE.
  • the XR service is a quasi-periodic service, which means that the service packets arrive at equal intervals, and the interval is a small floating-point number (non-positive integer) (for example, 30FPS (FPS refers to how many frames per second) ) 33.33ms, 60FPS 16.67ms, 120FPS 8.33ms).
  • XR services have high requirements on delay, and the air interface transmission delay budget (Packet Delay Budget, PDB) is required to be around 10ms.
  • PDB Packet Delay Budget
  • XR service packets have some jitters in the time it takes to reach the base station.
  • a certain range of front and rear offsets is called jitter.
  • the offset of the Jitter obeys the truncated Gaussian distribution, and the range is ⁇ 4ms before and after the arrival time position of the quasi-periodic service packet.
  • the time for the quasi-periodic packet to reach the base station is n (unit such as ms). Due to the influence of jitter, the actual arrival time of the packet is n+j, where j is the size of jitter. For example, if jitter is -1ms, it means that it should be The actual arrival time of a packet arriving at time n is n-1ms.
  • a buffer status report (Buffer Status Report, BSR) reporting mechanism is introduced, and the UE reports to the base station the amount of uplink data to be transmitted corresponding to each logical channel group.
  • BSR Buffer Status Report
  • the granularity reported by the BSR is a logical channel group (Logical Channel Group, LCG).
  • LCG Logical Channel Group
  • Each established logical channel can be configured with a logical channel group to which it belongs.
  • NR supports configuring up to 8 logical channel groups for a single UE at the same time.
  • BSR is triggered based on the following events:
  • a logical channel of a logical channel group has new uplink data to be transmitted, and the priority of this logical channel is higher than that of the previous logical channel with uplink data to be transmitted, or, the new All logical channels have no upstream data to be transmitted before the data arrives, and the Regular BSR will be triggered at this time;
  • the number of Padding bits in the newly transmitted TB is greater than or equal to (a single BSR Medium Access Control (MAC) Control Element , CE) + the number of bits occupied by its corresponding Subheader) (that is, the Padding bits in this newly transmitted TB can also accommodate the bits corresponding to a single BSR MAC CE), and the Padding BSR will be triggered at this time;
  • MAC Medium Access Control
  • the UE When the Regular BSR is triggered and there is no uplink resource for new transmission, the UE will trigger a scheduling request (Scheduling Request, SR), and request to the network through physical uplink control channel (Physical Uplink Control Channel, PUCCH) transmission or random access Upload newly uploaded resources.
  • SR scheduling request
  • PUCCH Physical Uplink Control Channel
  • the UE When the Periodic BSR is triggered, the UE only includes a BSR MAC CE in the constructed uplink TB when there are new uplink resources, but does not actively request the network for uplink resources by triggering SR.
  • the UE When the Padding BSR is triggered, the UE directly includes a BSR MAC CE in the uplink newly transmitted TB.
  • This embodiment relates to a wireless communication access stratum (Access Statum, AS) uplink data processing and sending process of a UE.
  • AS wireless communication access stratum
  • the related technologies of the involved main protocol layers and related functions are described as follows.
  • Packet Data Convergence Protocol (PDCP) layer and radio bearer (1) Packet Data Convergence Protocol (PDCP) layer and radio bearer:
  • the service data generated by the application layer of the UE will be classified into different service data flows according to its corresponding Quality-of-service (QoS) requirements, and each service data flow corresponds to the same or similar QoS requirements .
  • QoS Quality-of-service
  • the service data flow corresponds to a QoS flow
  • the service data flow corresponds to an Evolved Packet System (EPS) bearer.
  • EPS Evolved Packet System
  • a radio bearer includes a PDCP entity (PDCP protocol layer processing entity), a radio link layer control protocol (Radio Link Control, RLC) entity (PDCP protocol layer processing entity) and corresponding logical channels (located in the MAC protocol layer).
  • PDCP protocol layer processing entity PDCP protocol layer processing entity
  • RLC Radio Link Control
  • a data packet delivered to the AS layer When a data packet delivered to the AS layer is mapped to a radio bearer, it will be delivered to the corresponding PDCP entity in the form of a PDCP Service Data Unit (SDU) for processing.
  • the PDCP entity will generate a corresponding PDCP protocol data unit (Protocol Data Unicat, PDU) for each arriving PDCP SDU, and set a PDCP sequence number (Sequence Number, SN), which is used to represent each PDCP SDU in the PDCP entity and
  • the transmission order corresponding to the corresponding PDCP PDU; among them, the value of PDCP SN is set according to the order in which the PDCP SDU is delivered to the PDCP entity, and the transmission order of the first arriving PDCP SDU is first, and the order of delivery is last.
  • the PDCP entity will maintain an internal variable, TX_NEXT, which indicates the total number of PDCP PDUs transmitted by the PDCP entity, and is used to set the value of the PDCP SN; when the PDCP entity is established, it is initialized to 0, and each time a PDCP SDU is sent from the upper layer (Upper layers) to the corresponding PDCP entity, the PDCP entity will set the SN of the PDCP PDU corresponding to the PDCP SDU to TX_NEXT, and add 1 to TX NEXT.
  • TX_NEXT an internal variable
  • the PDCP entity will add a header file to each PDCP SDU to generate a corresponding PDCP PDU, which contains the SN value set for the PDCP PDU.
  • the PDCP Entity usually delivers the PDCP PDUs to the lower protocol layer in sequence according to the order of the SNs contained in the PDCP PDUs for subsequent processing and transmission.
  • SN is an ordinal number, indicating which number each PDCP SDU is transmitted.
  • the general principle is that the earlier the PDCP SDU arrives at the PDCP entity, the smaller the SN value, and the earlier the transmission
  • the PDCP PDU delivered from the PDCP entity to the corresponding RLC entity will be buffered in the buffer of the UE as an RLC SDU to be transmitted, and further processed by the RLC entity. Specifically, when a logical channel corresponding to an RLC entity is allocated certain transmission resources, the RLC entity will determine which RLC SDUs can be multiplexed into allocated transmission resources for transmission.
  • the RLC entity For one or more RLC SDUs determined by the RLC entity that can be completely multiplexed into the allocated transmission resources, the RLC entity will add corresponding RLC header files to these RLC SDUs, generate corresponding RLC PDUs, and pass them to the lower protocol layer (MAC) for subsequent processing and transmission.
  • MAC protocol layer
  • the RLC entity will perform segmentation processing, that is, add a header file to a part of the data of the next RLC SDU to be transmitted, generate an RLC PDU and pass it to the lower protocol layer for subsequent processing and transmission.
  • the remaining part will still be kept in the UE's buffer, waiting for the arrival of the next uplink transmission resource, and then transmit.
  • the RLC entity corresponding to each radio bearer further corresponds to a logical channel (logical channel) at the MAC layer.
  • a logical channel logical channel
  • the UE's MAC entity will further allocate the uplink transmission resource among multiple logical channels.
  • each logical channel corresponds to a logical channel priority
  • the MAC entity of the UE is based on the logical channel prioritization (Logical Channel Prioritization, LCP) resource allocation mechanism, according to the logical channel priority from high to low for each
  • LCP Logical Channel Prioritization
  • the corresponding RLC entity will transfer one or more RLC PDUs to the corresponding logical channel of the MAC layer.
  • the MAC layer will use these RLC PDUs obtained by each logical channel from the RLC entity as the MAC SDU to be transmitted, add the MAC header file corresponding to the corresponding logical channel, form the MAC subPDU of the corresponding logical channel, and multiplex it to the entire transmission resource , as the data sent in this uplink transmission of this logical channel.
  • the MAC subPDUs of multiple logical channels will be combined together to finally form a MAC PDU, which is used as the data packet sent uplink this time and transmitted to the network through wireless signals.
  • the UE since the RLC entity will segment the RLC SDU (as described above), for the uplink transmission resources obtained by each UE, the UE needs to first segment the RLC that has been segmented in the previous transmission and has not yet been transmitted. The remaining part of the SDU is multiplexed into resources for transmission, and then subsequent data packets corresponding to other RLC SDUs can be transmitted.
  • the UE In general, in related LTE and NR networks, the UE usually adopts the principle of "first arrival, first transmission" for the data of each radio bearer to realize the above-mentioned uplink data processing and transmission process. Specifically, for each radio bearer, the UE will process the data packets (SDU) in the order in which the data packets (SDU) are delivered to the corresponding entity of this layer at each of the above protocol layers, and deliver the processed data packets (PDU) to the the next protocol layer.
  • SDU data packets
  • PDU processed data packets
  • the corresponding PDCP entity will set the first PDCP SN value for it, so that it will be the first to be processed by the above-mentioned protocol layers, and will be the first to be multiplexed into the uplink resources for further processing.
  • Transmission; the data packets that arrive later will be assigned a later PDCP SN value, and will usually be processed, multiplexed, and transmitted by the above-mentioned protocol layers after the data packets that arrive earlier.
  • the UE finally executes the in-sequence transmission mechanism according to the order in which the data packets arrive at the AS.
  • This principle is mainly based on the consideration of transmission delay: because in the relevant wireless network, the transmission delay requirements of data in each radio bearer are basically the same, and the UE AS layer is not allowed to obtain the specific content of each data packet in the relevant wireless network , It is impossible to perform differentiated processing for each data packet; therefore, performing uplink processing, scheduling and transmission of data packets according to the order of arrival of data packets is a relatively reasonable method in related technologies from the perspective of ensuring time delay as much as possible.
  • the discard timer of the PDCP layer only the data bearer (DRB) has a discard timer.
  • the sending side will start a new timer for each SDU from the upper layer, and discard the SDU after timeout to prevent sending buffer congestion. .
  • the specific duration of this timer is configured by the upper radio resource control (Radio Resource Control, RRC).
  • RRC Radio Resource Control
  • the PDCP entity at the sending side starts a discard timer associated with the PDCP SDU.
  • the PDCP entity on the sending side needs to discard the PDCP SDU and the corresponding PDCP data PDU. If this PDCP data PDU has been delivered to the lower layer, it needs to instruct the lower layer to discard it.
  • SRB signaling bearer
  • Discarding a PDCP SDU that has been associated with a PDCP SN will bring an SN gap (gap) in the transmitted PDCP data PDU, which will increase the corresponding PDCP re-ordering delay at the receiving PDCP entity , at this time, it will be based on UE implementation to ensure how to minimize the SN gap after SDU discarding.
  • the wireless network can support the user's XR service transmission.
  • the application server on the network side generates XR service data such as video and audio, and transmits it downlink to the UE through the wireless network;
  • the side also needs to send the generated XR service data information such as video and audio, as well as the above-mentioned control signaling and special data with control functions to the network, and through these control information/special data, in turn control the generation of XR service data on the network side and transmission.
  • the generation and transmission of downlink XR service data on the network side depends on whether the uplink control information on the UE side can be sent to the network in a timely and effective manner.
  • the discarding timers of each PDCP SDU are independent and have no relationship with each other.
  • some services such as XR or CG services
  • the data packets corresponding to the same frame of service have a strong correlation
  • the services of different frames such as I frame and P frame also have a certain correlation
  • the discarding of these related data packets is interdependent.
  • An embodiment of the present application provides a data transmission method, as shown in FIG. 2 , executed by a terminal, and the method includes:
  • Step 101 When the first data unit to be transmitted by the terminal satisfies a preset discarding condition, and the terminal is in a preset scene and/or the first data unit satisfies the first condition, the terminal abandons the The first data unit is discarded.
  • the first data unit meets the preset discarding condition, but other data units in the same group, or other associated data units may not have completed transmission, if discarding (Discard) the first data unit will affect these The transmission of the data unit is affected, so the first data unit can be discarded (Abort) to ensure the transmission efficiency and delay of other data units, even if some resources (such as storage resources, or transmission resources) are wasted for the first data unit resources), but because the transmission efficiency of other data units is improved, the overall efficiency of the system is improved.
  • the first data unit includes a first data packet and/or a first packet, and the first packet is the first data packet.
  • the preset discarding conditions include at least one of the following:
  • the first timer corresponding to the first data unit expires
  • the second timer corresponding to the second data unit is timed out, and the second data unit is associated with the first data unit;
  • the first data unit is a data unit in the first target class grouping
  • the first data unit belongs to a first object class data packet
  • the terminal receives a first indication of network side device configuration and/or a first protocol layer indication, and the first protocol layer includes at least one of the following: application layer, Internet Protocol (Internet Protocol, IP) layer, RRC Layer, Service Data Adaptation Protocol (Service Data Adaptation Protocol, SDAP) layer, PDCP layer, RLC layer, MAC layer;
  • IP Internet Protocol
  • RRC Layer Service Data Adaptation Protocol
  • SDAP Service Data Adaptation Protocol
  • the priority of the first data unit is lower than a preset first threshold
  • the transmission of the first data unit is successful
  • the terminal determines that the first data unit needs to be discarded based on the first target information, where the first target information includes at least one of the following: transmission resources of the terminal; memory of the terminal; buffer space of the terminal; The capability of the terminal; the carrier aggregation (Carrier Aggregation, CA) configured by the terminal; the dual connectivity (Dual connectivity, DC) configured by the terminal; the channel quality of the terminal; the size of the first data unit; The data size of the data queue to be transmitted by the terminal; the time delay of the terminal or the first data unit.
  • the first target information includes at least one of the following: transmission resources of the terminal; memory of the terminal; buffer space of the terminal; The capability of the terminal; the carrier aggregation (Carrier Aggregation, CA) configured by the terminal; the dual connectivity (Dual connectivity, DC) configured by the terminal; the channel quality of the terminal; the size of the first data unit; The data size of the data queue to be transmitted by the terminal; the time delay of the terminal or the first data unit.
  • the first target information is used to indicate at least one of the following:
  • the terminal Whether the terminal supports carrier aggregation CA or dual connectivity DC, for example, the terminal does not support carrier aggregation CA or dual connectivity DC;
  • carrier aggregation CA or dual connectivity DC is configured for the terminal, for example, the network side device does not configure carrier aggregation CA or dual connectivity DC for the terminal;
  • the terminal has activated carrier aggregation CA or dual connectivity DC, for example, the terminal has not activated carrier aggregation CA or dual connectivity DC;
  • the resource of the first data unit is less than or equal to a preset threshold
  • the memory or cache space of the terminal for example, the memory or cache space of the terminal is insufficient, and the cache size of layer 1, layer 2, layer 3, and radio resource control is less than a preset threshold;
  • the capability of the terminal for example, the capability of the terminal is insufficient, and one or more capabilities are lower than a preset value
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR INterference Ratio
  • the queue of the first data unit, or the data queue to be transmitted by the terminal for example, the number of data packets in the first target data queue of the terminal is greater than or equal to a preset threshold;
  • the first target data queue includes: a queue of data units, or queues of data to be transmitted;
  • the queue of the first data unit, or the size of the data queue to be transmitted by the terminal for example, the total size of data packets in the first target data queue of the terminal is greater than or equal to a preset threshold; the first target data queue Including: a queue of the first data unit, or a queue of data to be transmitted;
  • the packet error rate of the first data unit, or the packet error rate of its corresponding PDU, or the packet error rate of its corresponding SDU for example, the packet error rate of a data packet, or PDU, or SDU is greater than or equal to a preset threshold, which This situation requires a certain feedback mechanism, which may not be limited to the UE side;
  • the delay of the target data unit, or the delay of the corresponding PDU, or the delay of the corresponding SDU, for example, any one of the above items is greater than or equal to a preset threshold.
  • the first data unit is not necessarily discarded. If the terminal is in a preset scene and/or the first data unit satisfies the first condition, it means that other data units in the same group may The transmission of the data unit or other associated data units has not been completed. If the discarding of the first data unit will affect the transmission of these data units, the discarding of the first data unit can be abandoned to ensure the transmission efficiency and delay of other data units.
  • the first data unit may include a first data packet and a first packet
  • the second data unit may include a second data packet and a second packet
  • the timeout of the second timer corresponding to the second data unit may be at least one of the following:
  • the timer corresponding to the group where the first data packet is located expires
  • the timer corresponding to the second data packet associated with the first data packet or the group in which it is located expires
  • the timer corresponding to the group in which the second data packet is associated with the first data packet or the group in which it is located expires
  • the timer corresponding to the second packet associated with the first data packet or the packet in which it is located expires.
  • the first target grouping satisfies at least one of the following:
  • the first target class grouping belongs to a low priority grouping
  • the first target class grouping does not belong to a high priority grouping
  • the priority of the first target group is lower than a preset priority
  • the first target class grouping belongs to a low-latency requirement grouping
  • the delay requirement of the first target group is lower than the preset delay requirement
  • the PoD requirement of the first target group is lower than the preset PoD requirement
  • the first target class grouping is a P frame grouping or a P slice in the business
  • the first target class grouping is B frame grouping or B slice in business
  • the first target class grouping is an enhancement layer grouping in a service
  • the first target class grouping is a non-Fov frame grouping in business
  • the first target class grouping belongs to a low QoS requirement grouping
  • the QoS requirement of the first target class group is lower than the preset QoS requirement
  • the priority of the QoS flow mapped to the first target class group is low priority or lower than the preset priority
  • the priority of the LCH mapped to the first target class grouping is low priority or lower than the preset priority
  • At least some of the data units in the first target grouping are not associated with other data units
  • At least some of the data packets in the first target class packets have been successfully transmitted
  • the first target class grouping is the grouping where the first target class data packet is located
  • the first target type data packet satisfies at least one of the following:
  • the first target class data packet is a data packet in the first target class grouping
  • the first object class packet is associated with the first object class packet
  • said first object class packet is dependent on said first object class packet
  • the priority of the first target class data packet belongs to the low priority data packet
  • the priority of the first target class data packet is lower than the preset priority
  • the delay requirement of the first target type data packet belongs to the low delay requirement
  • the delay requirement of the first target type data packet is lower than the preset delay requirement
  • the PoD requirement of the first target group is lower than the preset PoD requirement
  • the first target class data packet is a P frame data packet or a P slice data packet in the business
  • the first target class data packet is a B frame data packet or a B slice data packet in the business
  • the first target type data packet is an enhancement layer data packet in the service
  • the first target class data packet is a non-Fov frame data packet in the business
  • the QoS requirement of the first target class data packet belongs to the low QoS requirement
  • the QoS requirement of the first target type data packet is lower than the preset QoS requirement
  • the priority of the QoS flow mapped to the first target class data packet is low priority or lower than the preset priority
  • the priority of the LCH mapped to the first target class data packet is a low priority or lower than a preset priority
  • At least some of the data packets of the first target type are not associated with other data packets
  • At least some of the data packets of the first target type have been successfully transmitted.
  • the first timer may be a drop timer.
  • the discarding timer is used to control the discarding of data packets or packets, for example, when the discarding timer corresponding to the data packets or packets expires, the corresponding data packets or packets may be discarded.
  • the first data unit is a first data packet
  • the second data unit associated with the first data packet includes at least one of the following:
  • a data packet in a first group where the first group is the group where the first data packet is located;
  • the second data unit is a data unit associated with the first data unit, and after the second timer corresponding to the second data unit expires, the first data unit may be discarded.
  • the terminal giving up discarding the first data unit includes:
  • the terminal When the first data unit meets a preset discarding condition, the first data unit is not successfully transmitted, and the terminal is in a preset scene and/or the first data unit satisfies a first condition, the terminal Giving up discarding the first data unit.
  • the terminal discards the first data unit.
  • the method also includes:
  • the terminal stops or restarts the first timer. In this way, the discarding of the first data unit can be postponed. Generally, if the first timer expires, the corresponding first data unit needs to be discarded. By stopping or restarting the first timer, the discarding of the first data unit can be abandoned, thereby ensuring the transmission efficiency and delay of other associated data units.
  • the first timer may be a timer associated with the first data packet, or a timer associated with a group where the first data packet is located.
  • the method also includes:
  • the terminal stops or restarts the first timer. In this way, the discarding of the first data unit can be postponed. Generally, if the first data unit is successfully transmitted, its corresponding first data unit needs to be discarded. By stopping or restarting the first timer, the discarding of the first data unit can be abandoned, thereby ensuring the transmission efficiency and delay of other associated data units.
  • the start time of the first timer adopts any of the following:
  • the generation moment of the first data unit such as the moment when a PDCP SDU is generated
  • the upper layer includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer, and the upper layer refers to the current data packet or The upper layer of the protocol layer where the packet is located;
  • the retention and discarding of the corresponding first data unit can be effectively controlled by the first timer, That is, the starting time of the timer corresponds to the starting point of the life cycle of the data unit or the starting point of the life cycle in system transmission.
  • the preset scene includes at least one of the following:
  • the second data unit is being transmitted, for example, the packet (or data packet set) in which the second data or the second data packet is located is being transmitted, or the second packet is being transmitted;
  • the second data unit has been successfully transmitted, for example, the group (or data packet set) in which the second data or the second data packet is located has been successfully transmitted, or the second group has been successfully transmitted;
  • the second data unit is associated with the first data unit, including at least one of the following: the second data packet is associated with the first data packet, the second data packet is associated with the group where the first data packet is located, and the second data The packet is associated with the first group, the group of the second data packet is associated with the first data packet, the group of the second data packet is associated with the group of the first data packet, the group of the second data packet is associated with the first group, and the second group It is associated with the first data packet, the second group is associated with the group where the first data packet is located, and the second group is associated with the first group.
  • the second data unit is associated with the first data unit, which means that the first operation of one of them depends on the other, and the first operation includes at least one of the following: transmission, decoding, demodulation, reception, Display, integrity verification.
  • the discarding of the first data unit will be given up to ensure that the second data unit Unit transmission and reception.
  • the first condition includes at least one of the following:
  • the network side equipment After receiving the second indication of network side equipment configuration, the network side equipment includes: base station equipment, core network equipment (such as access and mobility management function (Access and Mobility Management Function, AMF), application function (Application Function, AF), user Plane function (User Plane Function, UPF, etc.), server side, data source side;
  • AMF Access and Mobility Management Function
  • AMF Application Function
  • AF Application Function
  • UPF User Plane Function
  • server side data source side
  • the second target information is used to indicate at least one of the following:
  • the terminal Whether the terminal supports carrier aggregation CA or dual connectivity DC; for example, when the terminal supports CA or DC, the terminal gives up discarding the first data unit;
  • the terminal Whether to configure or activate carrier aggregation CA or dual connectivity DC for the terminal; for example, when the terminal is not configured with CA or DC, or when the terminal is not activated with CA or DC, the terminal gives up discarding the first data unit;
  • the first target channel resource is greater than or equal to a preset threshold, and the first target channel resource includes: resources configured by the network side device for the terminal, or resources used to transmit the first data unit resource;
  • the channel quality is good, and the channel measurement performance is higher than a preset threshold.
  • the first target channel measurement performance is greater than or equal to a preset threshold, and the first target channel includes: the channel of the terminal, or used to transmit the first target channel.
  • the channel of a data unit, the channel quality can be represented by RSRP, RSRQ, SINR, etc.;
  • the first target size of the first data unit is less than or equal to a preset threshold; the first target size includes: the size of the first data unit, or the size of its corresponding PDU, or the size of its corresponding SDU, or the size of its corresponding BSR, or the size of its corresponding SR;
  • the number of data packets in the first target data queue of the terminal is less than or equal to a preset threshold; the first target data queue includes: a queue of first data units, or a queue of data to be transmitted;
  • the first target requirement reaches a preset threshold; the first target requirement includes: the delay Latency requirement of the terminal or the first data unit; or the PDB requirement of the terminal or the first data unit ;
  • the first protocol layer includes at least one of the following: an application layer, an IP layer, an RRC layer, an SDAP layer, a PDCP layer, an RLC layer, a MAC layer, and a physical (Physical, PHY) layer.
  • the second indication is used to indicate any of the following:
  • the first data unit When the first data unit satisfies a preset discarding condition and is in the preset scenario, the first data unit is not discarded;
  • a second data unit is associated with said first data unit
  • the first data unit is a first data packet or a first packet
  • the second data unit is any of the following:
  • a second data packet in the same group as the first data packet is same.
  • the discarding of the first data unit will be given up to ensure the transmission of the associated data unit and receive.
  • the first data unit is a first data packet or a first packet
  • the second data unit is a second data packet
  • the second data packet includes at least one of the following:
  • At least some of the data packets associated with the first data packet or first packet such as some or all of the data packets associated with the first data packet;
  • the second group is associated with the first data packet or the first group, such as the part or the rest or all of the data packets associated with the first data packet in the group A data packet, or part of or the remaining or all data packets in other part or all of the groups associated with the group where the first data packet is located;
  • At least part of the data packets corresponding to the first timer such as part or all of the data packets corresponding to the first timer;
  • the fifth data packet corresponding to the first timer, such as some or all of the data packets associated with the fifth data packet;
  • the data packets in the sixth group associated with the fifth group for example, part or remaining or all data packets in other part or all groups associated with part or all of the groups corresponding to the first timer.
  • the first data unit is a first data packet or a first packet
  • the second data unit is a second packet
  • the second packet includes at least one of the following:
  • a first group where the first group is the group where the first data packet is located;
  • the second data packet is associated with the first data packet
  • Groups associated with the first group such as other part or all of the groups associated with the first group;
  • a group corresponding to the first timer such as part or all of the group corresponding to the first timer
  • a group associated with the fifth group, the fifth group corresponding to the first timer such as other part or all groups associated with part or all of the groups corresponding to the first timer.
  • the first data unit is a data packet
  • the data packet includes at least one of the following:
  • Physical layer data packets such as transmission block
  • RRC layer data packets such as RRC message
  • the data packet corresponding to the Radio Bearer is carried wirelessly.
  • the first data unit is a packet
  • the packet is at least one of the following:
  • the upper layer data packet or data packet set includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer, the upper layer refers to the protocol layer where the current data packet or grouping is located upper layer;
  • a data packet or a collection of data packets corresponding to an enhancement layer in a service is a data packet or a collection of data packets corresponding to an enhancement layer in a service.
  • the layered model is usually used to divide business data into different layers based on different characteristics, where different layers correspond to different requirements, such as QoS requirements, importance, etc., such as:
  • the execution subject may be a data transmission device, or a module in the data transmission device for executing the loading data transmission method.
  • the data transmission method provided in the embodiment of the present application is described by taking the data transmission device executing the load data transmission method as an example.
  • the embodiment of the present application provides a data transmission device 300, which is applied to a terminal. As shown in FIG. 3, the device includes:
  • the processing module 310 is configured to give up on the condition that the first data unit to be transmitted by the terminal satisfies a preset discarding condition, and the terminal is in a preset scene and/or the first data unit satisfies a first condition. The first data unit is discarded.
  • the preset discarding conditions include at least one of the following:
  • the first timer corresponding to the first data unit expires
  • the second timer corresponding to the second data unit is timed out, and the second data unit is associated with the first data unit;
  • the first data unit is a data unit in the first target class grouping
  • the first data unit belongs to a first object class data packet
  • the terminal receives a first indication of network side device configuration and/or a first protocol layer indication, and the first protocol layer includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer;
  • the priority of the first data unit is lower than a preset first threshold
  • the transmission of the first data unit is successful
  • the terminal determines that the first data unit needs to be discarded based on the first target information, where the first target information includes at least one of the following: transmission resources of the terminal; memory of the terminal; buffer space of the terminal; The capability of the terminal; the carrier aggregation CA configured by the terminal; the dual connectivity DC configured by the terminal; the channel quality of the terminal; the size of the first data unit; the data size of the data queue to be transmitted by the terminal ; The delay of the terminal or the first data unit.
  • the first data unit is a first data packet
  • the second data unit associated with the first data packet includes at least one of the following:
  • a data packet in a first group where the first group is the group where the first data packet is located;
  • the processing module is specifically configured to meet a preset discarding condition when the first data unit is not successfully transmitted, and the terminal is in a preset scene and/or the The first data unit satisfies the first condition, giving up discarding the first data unit
  • the processing module is further configured to stop or restart the first timer when the first data unit meets the preset discarding condition.
  • the processing module is further configured to stop or restart the first timer if the first data unit is successfully transmitted.
  • the start time of the first timer adopts any of the following:
  • the preset scene includes at least one of the following:
  • the second data unit is being transmitted
  • the second data unit is associated with the first data unit.
  • the first condition includes at least one of the following:
  • the second target information is used to indicate at least one of the following:
  • the terminal Whether the terminal supports carrier aggregation CA or dual connectivity DC, for example, when the terminal supports CA or DC, the terminal gives up discarding the first data unit;
  • the terminal Whether to configure or activate carrier aggregation CA or dual connectivity DC for the terminal, for example, when the terminal is not configured with CA or DC, or when the terminal is not activated with CA or DC, the terminal gives up discarding the first data unit;
  • a channel of the terminal or a channel used to transmit the first data unit
  • the size of the first data unit or the size of its corresponding PDU, or its corresponding SDU size, or its corresponding BSR size, or its corresponding SR size;
  • the number of data packets in the first target data queue of the terminal where the first target data queue includes: a queue of first data units, or a data queue to be transmitted;
  • the first protocol layer includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer, and PHY physical layer.
  • the second indication is used to indicate any of the following:
  • the first data unit When the first data unit satisfies a preset discarding condition and is in the preset scenario, the first data unit is not discarded;
  • a second data unit is associated with said first data unit
  • the first data unit is a first data packet or a first packet
  • the second data unit is any of the following:
  • a second data packet in the same group as the first data packet is same.
  • the first data unit is a first data packet or a first packet
  • the second data unit is a second data packet
  • the second data packet includes at least one of the following:
  • At least some data packets in a fifth group the fifth group corresponding to the first timer
  • a data packet within a sixth packet associated with the fifth packet is a data packet within a sixth packet associated with the fifth packet.
  • the first data unit is a first data packet or a first packet
  • the second data unit is a second packet
  • the second packet includes at least one of the following:
  • a first group where the first group is the group where the first data packet is located;
  • the second data packet is associated with the first data packet
  • a packet associated with a fifth packet the fifth packet corresponding to the first timer.
  • the first data unit is a data packet
  • the data packet includes at least one of the following:
  • the data packet corresponding to the Radio Bearer is carried wirelessly.
  • the first data unit is a packet
  • the packet is at least one of the following:
  • An upper layer data packet or a data packet set includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer;
  • a data packet or a collection of data packets corresponding to an enhancement layer in a service is a data packet or a collection of data packets corresponding to an enhancement layer in a service.
  • the data transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Opersonal Computer, PC), a television ( Television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the data transmission device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, and programs or instructions stored in the memory 402 and operable on the processor 401,
  • a communication device 400 including a processor 401, a memory 402, and programs or instructions stored in the memory 402 and operable on the processor 401
  • the communication device 400 is a terminal
  • the program or instruction is executed by the processor 401
  • each process of the above embodiment of the data transmission method applied to the terminal can be implemented, and the same technical effect can be achieved.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is configured to meet a preset discarding condition when the first data unit to be transmitted by the terminal, and the terminal is in a preset scene and/or the When the first data unit satisfies the first condition, discarding the first data unit is abandoned.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1000 includes but not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010, etc. at least some of the components.
  • the terminal 1000 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1010 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.
  • the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 is used for the image capture device (such as the image data of the static picture or video obtained by the camera) for processing.
  • the display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes a touch panel 10071 and other input devices 10072 .
  • the touch panel 10071 is also called a touch screen.
  • the touch panel 10071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1001 receives the downlink data from the network side device, and processes it to the processor 1010; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 1009 can be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required by a function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1009 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1010 .
  • the processor 1010 is configured to, when the first data unit to be transmitted by the terminal satisfies a preset discarding condition, and the terminal is in a preset scene and/or the first data unit satisfies a first condition, Giving up discarding the first data unit.
  • the preset discarding conditions include at least one of the following:
  • the first timer corresponding to the first data unit expires
  • the second timer corresponding to the second data unit is timed out, and the second data unit is associated with the first data unit;
  • the first data unit is a data unit in the first target class grouping
  • the first data unit belongs to a first object class data packet
  • the terminal receives a first indication of network side device configuration and/or a first protocol layer indication, and the first protocol layer includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer;
  • the priority of the first data unit is lower than a preset first threshold
  • the transmission of the first data unit is successful
  • the terminal determines that the first data unit needs to be discarded based on the first target information, where the first target information includes at least one of the following: transmission resources of the terminal; memory of the terminal; buffer space of the terminal; The capability of the terminal; the carrier aggregation CA configured by the terminal; the dual connectivity DC configured by the terminal; the channel quality of the terminal; the size of the first data unit; the data size of the data queue to be transmitted by the terminal ; The delay of the terminal or the first data unit.
  • the first data unit is a first data packet
  • the second data unit associated with the first data packet includes at least one of the following:
  • a data packet in a first group where the first group is the group where the first data packet is located;
  • the processor 1010 is specifically configured to meet a preset discarding condition when the first data unit is not successfully transmitted, and the terminal is in a preset scene and/or the first data unit is in a preset scenario and/or the first data unit is not successfully transmitted.
  • a data unit satisfies the first condition, giving up discarding the first data unit
  • the processor 1010 is further configured to stop or restart the first timer when the first data unit meets the preset discarding condition.
  • the processor 1010 is further configured to stop or restart the first timer if the first data unit is successfully transmitted.
  • the start time of the first timer adopts any of the following:
  • the preset scene includes at least one of the following:
  • the second data unit is being transmitted
  • the second data unit is associated with the first data unit.
  • the first condition includes at least one of the following:
  • the second target information is used to indicate at least one of the following:
  • the terminal Whether the terminal supports carrier aggregation CA or dual connectivity DC; for example, when the terminal supports CA or DC, the terminal gives up discarding the first data unit;
  • the terminal Whether to configure or activate carrier aggregation CA or dual connectivity DC for the terminal; for example, when the terminal is not configured with CA or DC, or when the terminal is not activated with CA or DC, the terminal gives up discarding the first data unit;
  • a channel of the terminal or a channel used to transmit the first data unit
  • the size of the first data unit or the size of its corresponding PDU, or its corresponding SDU size, or its corresponding BSR size, or its corresponding SR size;
  • the number of data packets in the first target data queue of the terminal where the first target data queue includes: a queue of first data units, or a data queue to be transmitted;
  • the first protocol layer includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer, and PHY physical layer.
  • the second indication is used to indicate any of the following:
  • the first data unit When the first data unit satisfies a preset discarding condition and is in the preset scenario, the first data unit is not discarded;
  • a second data unit is associated with said first data unit
  • the first data unit is a first data packet or a first packet
  • the second data unit is any of the following:
  • a second data packet in the same group as the first data packet is same.
  • the first data unit is a first data packet or a first packet
  • the second data unit is a second data packet
  • the second data packet includes at least one of the following:
  • At least some data packets in a fifth group the fifth group corresponding to the first timer
  • a data packet within a sixth packet associated with the fifth packet is a data packet within a sixth packet associated with the fifth packet.
  • the first data unit is a first data packet or a first packet
  • the second data unit is a second packet
  • the second packet includes at least one of the following:
  • a first group where the first group is the group where the first data packet is located;
  • the second data packet is associated with the first data packet
  • a packet associated with a fifth packet the fifth packet corresponding to the first timer.
  • the first data unit is a data packet
  • the data packet includes at least one of the following:
  • the data packet corresponding to the Radio Bearer is carried wirelessly.
  • the first data unit is a packet
  • the packet is at least one of the following:
  • An upper layer data packet or a data packet set includes at least one of the following: application layer, IP layer, RRC layer, SDAP layer, PDCP layer, RLC layer, MAC layer;
  • a data packet or a collection of data packets corresponding to an enhancement layer in a service is a data packet or a collection of data packets corresponding to an enhancement layer in a service.
  • the embodiment of the present application also provides a readable storage medium, the readable storage medium may be volatile or non-volatile, and a program or instruction is stored on the readable storage medium, the program or When the instructions are executed by the processor, the various processes of the above data transmission method embodiments can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above data transmission method embodiment
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above data transmission method embodiment
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a non-volatile storage medium, and the computer program/program product is executed by at least one processor to realize the above data
  • a computer program/program product is stored in a non-volatile storage medium
  • the computer program/program product is executed by at least one processor to realize the above data
  • the embodiment of the present application also provides a communication device configured to execute the processes of the foregoing data transmission method embodiments, and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请公开一种数据传输方法、装置及终端,属于通信技术领域。数据传输方法,包括:在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,所述终端放弃对所述第一数据单元进行丢弃。

Description

数据传输方法、装置及终端
相关申请的交叉引用
本申请主张在2021年10月19日在中国提交的中国专利申请No.202111216444.5的优先权,其全部内容通过引用包含于此。
技术领域
本申请涉及通信技术领域,具体涉及一种数据传输方法、装置及终端。
背景技术
扩展现实(Extended reality,XR)是指由计算机技术和可穿戴设备产生的所有真实与虚拟的组合环境和人机交互。它包括增强现实(Augmented Reality,AR)、混合现实(Mixed Reality,MR)、虚拟现实(Virtual Reality,VR)等代表性形式,以及它们之间的插值区域。虚拟世界的级别从部分感官输入到完全沉浸式虚拟现实。XR的一个关键方面是人类经验的扩展,尤其是与存在感(以VR为代表)和认知习得(以AR为代表)相关的经验。
发明内容
本申请实施例提供了一种数据传输方法、装置及终端,能够保证数据包的传输效率,降低数据包的传输延时。
第一方面,本申请实施例提供了一种数据传输方法,包括:
在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,所述终端放弃对所述第一数据单元进行丢弃。
第二方面,本申请实施例提供了一种数据传输装置,包括:
处理模块,用于在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,放弃对所述第一数据单元进行丢弃。
第三方面,提供了一种终端,该终端包括处理器、存储器及存储在所述 存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,放弃对所述第一数据单元进行丢弃。
第五方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法。
第七方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非易失的存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤。
第八方面,提供了一种通信设备,被配置为执行如第一方面所述的方法的步骤。
在本申请实施例中,第一数据单元满足丢弃条件,但是可能同一分组内的其它数据单元,或者关联的其它数据单元未完成传输,如果丢弃第一数据单元会对这些数据单元的传输造成影响,所以可以放弃丢弃第一数据单元,以保证其它数据单元的传输效率和延时。
附图说明
图1表示无线通信系统的示意图;
图2表示本申请实施例数据传输方法的流程示意图;
图3表示本申请实施例数据传输装置的结构示意图;
图4表示本申请实施例通信设备的结构示意图;
图5表示本申请实施例的终端的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer,TPC)、膝上型电脑(Laptop Computer,LC)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(Ultra-Mobile Personal Computer,UMPC)、移动上网装置 (Mobile Internet Device,MID)、可穿戴式设备(Wearable Device,WD)或车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)等终端侧设备,可穿戴式设备包括:智能手表、手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网络(Wireless Local Area Networks,WLAN)接入点、无线保真(Wireless Fidelity,WiFi)节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型,所述核心网设备可以是位置管理设备,例如,位置管理功能(位置管理功能(Location Management Function,LMF)、演进的服务移动位置中心(Evolved Serving Mobile Location Center,E-SLMC))等。
对于VR业务,上行以较为密集的小数据包传输为主,这些小数据包可承载手势、控制等信息,作为下行呈现数据的输入和参考;下行以视频和音频等多媒体数据传输为主,通过这些多媒体数据的及时接收以及呈现,向用户提供沉浸式的感受。以下行视频数据为例,数据包周期或准周期性到达,数据速率可达几十甚至上百Mbps,帧率(Frames Per Second,FPS)的典型值为60或120,相邻数据包之间的间隔大致为1/FPS秒,这些数据在空口一般需要在10ms内成功传输,并且传输成功率要求不低于99%甚至99.9%。
对于AR业务,上行除了上述密集小数据包传输之外,也可能传输视频和音频等多媒体数据,其业务特性和下行类似,通常数据速率相对较低,例如最多几十Mbps,空口传输的时间限也可以放宽,例如一般需要在60ms内成功传输;下行数据传输特性基本与VR业务一致。
用户希望在扩展现实中进行交互和操作,动作和互动包括动作、手势和身体反应。自由度(Degree of Freedom,DoF)描述了用于定义3D空间中视口 移动的独立参数的数量。
在XR的应用场景中,用户在虚拟现实体验中可以通过转头等动作来获取新视野角度的信息。这时XR用户的转头动作可以通过发送一个上行信号告知基站,基站在接收到上行信号后,会为该XR用户调度所需的下行数据以供使用。
XR业务主要包括视频数据、音频数据以及一些具有控制功能的控制信令和特殊数据。在无线网络中,XR业务传输主要涉及终端设备(User Equipement,UE)与无线通过新网络(例如LTE/NR等)之间的上行和下行视频/音频数据传输和交互。其中,UE在传输视频、音频数据本身的同时,需要通过无线网络上行传输一些具有控制功能的控制信令和特殊数据,用以对控制网络为UE发送的XR业务中视频和音频业务数据的生成、处理及下行无线传输。
这些具有控制功能的控制信息和特殊数据包括UE XR应用编码器生成的一些业务控制数据及业务传输协议包含的控制数据信息,例如:
从应用层面,可以包括(但不限于):
视频编码器生成的I帧或IDR帧或non-视场角(Field of view,FOV)帧;
传感器采集的用户行为数据,如pose/control数据等;网络可以通过这些数据的接收,判断用户行为,例如上述的用户转头等动作,进而调整发送的视频数据内容;
从传输协议层面,可以包括:
针对下行音频/视频业务传输的传输控制协议(Transmission Control Protocol,TCP)肯定确认(Acknowledgement,ACK)信令(TCP反馈),网络需要根据相应视频/音频帧是否已被UE确认,决定是否可以继续发送后续帧;
实时传输控制协议(Real-time Transport Control Protocol,RTCP)ACK信令,用于控制数据实时传输的控制信令,确认业务数据传输的实时性要求及时间同步。
网络通常需要及时、可靠地接收到来自UE的这些具有控制功能的控制信令和特殊数据,用以获取当前业务的传输状态以及相关必要控制信息;应用服务器需要基于这些信息、进一步生成后续所需传输的视频、音频业务数 据,并传递给无线网络进行处理和传输,最终将这些业务数据下行发送给UE。
根据XR标准项目的讨论,XR业务属于准周期业务也就是说业务包等间隔到达,且间隔为较小的浮点型数(非正整数)(例如,30FPS(FPS指的是每秒多少帧)33.33ms,60FPS 16.67ms,120FPS 8.33ms)。此外,XR业务对时延要求很高,空口传输时延预算(Packet Delay Budget,PDB)要求在10ms左右。
但由于从服务器短发送至基站端的业务需要存在传输的时延等原因,XR业务包存在一些达到基站侧的时间上的抖动,也就是说在准周期的基础上,每个业务来包时间存在一定范围内的前后偏移,该偏移称作抖动jitter。Jitter的偏移服从截断的高斯分布,范围是在准周期业务包达到的时间位置上前后偏移±4ms。
例如,包准周期达到基站端的时间为n(单位例如ms),由于存在jitter的影响,包的实际到达时间为n+j,其中j为jitter的大小,例如jitter为-1ms,则表示本应在时间n到达的包的实际到达时间为n-1ms。
为了便于网络侧基于上行待传数据执行上行调度,从LTE开始,引入了缓冲区状态报告(Buffer Status Report,BSR)上报机制,由UE向基站上报各逻辑信道组对应的上行待传数据量,NR中基本沿用了此机制。
BSR上报的粒度为逻辑信道组(Logical Channel Group,LCG),每个建立的逻辑信道可以为其配置一个归属的逻辑信道组,NR中支持为单个UE同时配置最多8个逻辑信道组。
BSR基于下列事件来触发:
(1)某个逻辑信道组的某个逻辑信道有新的上行待传数据到来,并且,此逻辑信道的优先级比之前有上行待传数据的逻辑信道的优先级更高,或者,此新数据到达之前所有逻辑信道都没有上行待传数据,此时将触发Regular BSR;
(2)在组织某个上行新传传输块(Transport Block,TB)时,此新传TB中的Padding比特数大于等于(单个BSR媒体接入控制(Medium Access Control,MAC)控制单元(Control Element,CE)+其对应的Subheader)占用的比特数(即此新传TB中的Padding比特还可以容纳单个BSR MAC CE 对应的比特),此时将触发Padding BSR;
(3)retxBSR-Timer定时器超时,并且至少一个逻辑信道存在上行待传数据,此时将触发Regular BSR;
(4)periodicBSR-Timer定时器超时,此时将触发Periodic BSR。
当触发了Regular BSR,并且没有用于新传的上行资源时,UE将触发调度请求(Scheduling Request,SR),通过物理上行控制信道(Physical Uplink Control Channel,PUCCH)传输或随机接入向网络请求上行新传资源。
当触发了Periodic BSR时,UE仅在有上行新传资源时,在构造的上行TB中包含一个BSR MAC CE,但并不会通过触发SR来主动向网络请求上行新传资源。
当触发了Padding BSR时,UE直接在上行新传TB中包含一个BSR MAC CE。
本实施例涉及UE的无线通信接入层(Access Statum,AS)上行数据处理及发送流程。下面对所涉及的主要协议层及相关功能的相关技术描述如下。
(1)分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层和无线承载(radio bearer):
UE的应用层生成的业务数据,会按照其对应的服务质量(Quality-of-service,QoS)要求,被归类为不同业务数据流,每个业务数据流对应于同样或相似的的QoS需求。在NR系统中,所述业务数据流对应于一个QoS flow,而在LTE系统中,所述的业务数据流对应于一个演进分组系统(Evolved Packet System,EPS)承载。
业务数据会以数据包(Packet)的形式,传递到AS层,并在AS层根据其所对应的QoS flow(NR)或者EPS承载(LTE),被进一步映射到一个无线承载(Radio Bearer)中。一个无线承载包括一个PDCP实体(PDCP协议层处理实体),一个无线链路层控制协议(Radio Link Control,RLC)实体(PDCP协议层处理实体)以及相应的逻辑信道(位于MAC协议层)。
当一个传递到AS层的数据包被映射到一个无线承载后,会以PDCP业务数据单元(Service Data Unit,SDU)的形式,传递到相应的PDCP实体进行处理。PDCP实体会为每个到达的PDCP SDU生成一个对应的PDCP协议 数据单元(Protocol Data Unicat,PDU),并设置一个PDCP序列号(Sequence Number,SN),用于表示PDCP实体中每个PDCP SDU及其相应PDCP PDU对应的传输次序;其中,PDCP SN的取值按照PDCP SDU传递到PDCP实体的顺序设置,先到达的PDCP SDU传输次序在先、后传递的次序在后。具体地,PDCP实体会维护一个内部变量,TX_NEXT,表示PDCP实体传输的PDCP PDU的总数,用于设置PDCP SN的值;PDCP实体建立时将其初始化为0,每次一个PDCP SDU从上层(Upper layers)传递到相应PDCP实体后,PDCP实体会将该PDCP SDU对应的PDCP PDU的SN设置为TX_NEXT,并将TX NEXT加1。之后,PDCP实体会为每个PDCP SDU添加头文件,生成相应的PDCP PDU,其中包含为该PDCP PDU设置的SN值。PDCP Entity通常会按照PDCP PDU所包含的SN的顺序,将PDCP PDU按序传递给下层协议层进行后续处理和传输。其中,SN是一个序数,表示每个PDCP SDU是第几个传输的,总体原则就是PDCP SDU到达PDCP实体越早,SN值越小,传输的越早
(2)无线链路层控制协议(Radio Link Control,RLC)层
从PDCP实体传递到相应RLC实体的PDCP PDU,会被当作待传的RLC SDU缓存在UE的缓冲区内,并由RLC实体进行进一步处理。具体地,当某个RLC实体对应的逻辑信道被分配一定的传输资源时,RLC实体将根据所分配传输资源所能容纳的数据量,以及缓冲区内待传输的RLC SDU的数据量,确定哪些RLC SDU可以复用到所分配的传输资源中进行传输。
对于RLC实体确定的、可以完整复用到所分配传输资源的一个或多个RLC SDU,RLC entity会为这些RLC SDU分别添加对应的RLC头文件,并生成对应的RLC PDU,传递给下层协议层(MAC)进行后续的处理和传输。而在复用了上述完整的RLC PDU后,如果仍有一定资源剩余、但不足以再复用一个完整的RLC SDU(即,资源能支持的数据量小于复用下一个RLC SDU所需的数据量),则RLC实体会进行分段处理,即为下一个待传输的RLC SDU的一部分数据添加头文件,生成RLC PDU并传递给下层协议层进行后续处理和传输。
对于这种被分段的RLC SDU,剩余部分将会仍然被保留在UE的缓冲区, 等待下次上行传输资源的到来,再行传输。
(3)媒体接入控制(Medium Access Control,MAC)层和逻辑信道
每个无线承载对应的RLC实体,在MAC层进一步对应于一个逻辑信道(logical channel)。当UE被分配了一个上行传输资源的授权后(Uplink grant),UE的MAC实体会进一步将本次上行传输的资源,在多个逻辑信道间进行分配。具体地,每个逻辑信道对应于一个逻辑信道优先级,UE的MAC实体基于逻辑信道优先处理(Logical Channel Prioritization,LCP)的资源分配机制,按照逻辑信道优先级由高到低的顺序为每个逻辑信道分配本次上行传输可用的传输资源,其对应于每个逻辑信道可以传输的数据量。
如上所述,基于每个逻辑信道所分配到到的传输资源,对应的RLC实体将会将一个或者多个RLC PDU传递给MAC层相应的逻辑信道。MAC层会将每个逻辑信道从RLC实体获得的这些RLC PDU作为待传输的MAC SDU,添加相应逻辑信道对应的MAC头文件,形成对应逻辑信道的MAC subPDU,并将其复用到整个传输资源中,作为这个逻辑信道本次上行传输所发送的数据。多个逻辑信道的MAC subPDU会被组合在一起,最终组成一个MAC PDU,作为本次上行发送的数据包,通过无线信号向网络进行传输。
需要指出的是,由于RLC实体会对RLC SDU进行分段处理(如上所述),对于每个UE获得的上行传输资源,UE需要首先将在之前传输中被分段、且尚未传输完毕的RLC SDU的剩余部分复用到资源中进行传输,之后才能传输后续的其他RLC SDU对应的数据包。
总的来说,相关LTE和NR网络中,UE针对每个无线承载的数据,通常采用“先到达、先传输”的原则实现上述上行数据处理和传输过程。具体地,针对每个无线承载,UE在上述每个协议层会按照数据包(SDU)传递到本层对应实体的先后顺序处理数据包,并且将处理后的数据包(PDU)按序传递给下一协议层。也就是说,对于先传递到AS层的数据包,相应PDCP实体将会为其设置靠前的PDCP SN值,使其率先获得个上述各协议层的处理,并率先复用到上行资源中进行传输;而后到达的数据包,则会被分配靠后的PDCP SN取值,通常会在在先到达数据包之后被各上述协议层处理、复用及传输。这也意味着,对于映射到每个无线承载上的数据包,UE最终执行的是 按照数据包到达AS先后顺序的按序传输机制。
采用这种原则的主要是基于传输时延考虑:由于相关无线网络中,每个无线承载中数据的传输时延要求基本相同,而相关无线网络中不允许UE AS层获取每个数据包具体内容、无法执行针对每个数据包的区分处理;因此,按照数据包到达的顺序来进行数据包的上行处理、调度和传输,从尽量保证时延的角度,是相关技术中较为合理的方式。
对于PDCP层的丢弃定时器,只有数据承载(DRB)才有丢弃定时器,发送侧对每一个从上层来的SDU都会启动一个新的定时器,超时后丢弃该SDU,用于防止发送缓冲拥塞。此定时器的具体时长是由上层无线资源控制(Radio Resource Control,RRC)配置。具体地,当接收到上层递送的PDCP SDU时,则发送侧PDCP实体启动与此PDCP SDU相关联的一个丢弃定时器。当此PDCP SDU相关联的丢弃定时器超时,或者此PDCP SDU成功传输时(即由PDCP状态报告确认成功传输),则发送侧PDCP实体需要丢弃此PDCP SDU以及对应的PDCP数据PDU。如果此PDCP数据PDU已经传递到下层,则需要指示下层丢弃。对于信令承载(SRB),当上层请求丢弃一个PDCP SDU,则PDCP实体需要丢弃所有存储的PDCP SDU和PDCP PDU。当然:丢弃一个已经与PDCP SN相关联的PDCP SDU,会在传输的PDCP数据PDU中带来一个SN空隙(gap),这会在接收PDCP实体增加对应的PDCP乱序(re-ordering)延时,这时会基于UE实现来保证在SDU丢弃后如何最小化SN gap。
目前无线网络可以支持用户的XR业务传输。如上所述,针对用户UE申请的XR业务,用户UE与网络之间会进行双向交互式数据传输:网络侧的应用服务器生成视频、音频等XR业务数据,并通过无线网络下行传输给UE;UE侧也需要将其生成的视频、音频等XR业务数据信息以及上述具有控制功能的控制信令和特殊数据上行发送给网络,通过这些控制信息/特殊数据,反过来控制网络侧XR业务数据的生成和传输。网络侧下行XR业务数据的生成和传输,依赖于UE侧上行控制信息是否能及时、有效地发送给网络。
在现在的方案中,每个PDCP的SDU的丢弃timer是独立的,相互之间 没有任何关系。考虑在某些业务,比如XR或CG业务中,由于同一帧的业务对应的数据包具有极强的相关性,而且不同帧比如I帧与P帧之间的业务也具有一定的相关性,对于这些相关的数据包,它们的丢弃有相互依赖关系。
本申请实施例提供一种数据传输方法,如图2所示,由终端执行,所述方法包括:
步骤101:在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,所述终端放弃对所述第一数据单元进行丢弃。
在本申请实施例中,第一数据单元满足预设的丢弃条件,但是可能同一分组内的其它数据单元,或者关联的其它数据单元未完成传输,如果丢弃(Discard)第一数据单元会对这些数据单元的传输造成影响,所以可以放弃(Abort)丢弃第一数据单元,以保证其它数据单元的传输效率和延时,即使为所述第一数据单元浪费了部分资源(比如存储资源,或传输资源),但是由于对其它数据单元的传输效率提升了,所以系统整体效率提升了。其中,第一数据单元包括第一数据包和/或第一分组,第一分组即第一数据分组。
一些实施例中,所述预设的丢弃条件包括以下至少一项:
所述第一数据单元对应的第一定时器超时;
第二数据单元对应的第二定时器超时,所述第二数据单元与所述第一数据单元关联;
所述第一数据单元为第一目标类分组内的数据单元;
所述第一数据单元属于第一目标类数据包;
所述终端接收到网络侧设备配置和/或第一协议层指示的第一指示,所述第一协议层包括以下至少一项:应用层,网际互连协议(Internet Protocol,IP)层,RRC层,服务数据适应协议(Service Data Adaptation Protocol,SDAP)层,PDCP层,RLC层,MAC层;
所述第一数据单元的优先级低于预设第一阈值;
所述第一数据单元传输成功;
所述终端基于第一目标信息确定需要丢弃所述第一数据单元,所述第一目标信息包括以下至少一项:所述终端的传输资源;所述终端的内存;所述 终端的缓存空间;所述终端的能力;所述终端配置的载波聚合(Carrier Aggregation,CA);所述终端配置的双连接(Dual connectivity,DC);所述终端的信道质量;所述第一数据单元的大小;所述终端待传输数据队列的数据大小;所述终端或所述第一数据单元的时延。
具体地,所述第一目标信息用于指示以下至少一项:
所述终端是否支持载波聚合CA或双连接DC,比如终端不支持载波聚合CA或双连接DC;
为所述终端是否配置了载波聚合CA或双连接DC,比如网络侧设备未为所述终端配置载波聚合CA或双连接DC;
为所述终端是否激活了载波聚合CA或双连接DC,比如所述终端未激活载波聚合CA或双连接DC;
网络侧设备为所述终端配置的资源,或用于传输所述第一数据单元的资源,比如资源不足,网络侧设备为所述终端配置的资源小于等于一个预设门限,或者,用于传输所述第一数据单元的资源小于等于一个预设门限;
所述终端的内存或缓存空间,比如终端的内存或缓存空间不足,层1、层2、层3、无线资源控制缓存大小小于一个预设门限;
所述终端的能力,比如终端的能力不足,一个或多个能力低于预设值;
所述终端的信道质量,或用于传输所述第一数据单元的信道质量,比如信道质量不够好,信道测量性能低于等于一个预设门限,其中的测量性能包括:参考信号接收功率(Reference Signal Received Power,RSRP),参考信号接收质量(Reference Signal Received Quality,RSRQ),信号与干扰加噪声比(Signal-to-noise and INterference Ratio,SINR)等;
所述第一数据单元的大小,或其对应的PDU的大小,或其对应的SDU的大小,或其对应的BSR的大小,或其对应的SR的大小,比如上述几项中的任一项大于等于一个预设门限;
所述第一数据单元的队列,或所述终端待传输的数据队列,比如所述终端第一目标数据队列的数据包数量大于或等于一个预设门限;所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
所述第一数据单元的队列,或所述终端待传输的数据队列的大小,比如 所述终端第一目标数据队列的数据包总大小大于或等于一个预设门限;所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
所述终端或所述第一数据单元的延时Latency需求;或所述终端或所述第一数据单元的PDB需求,比如终端或数据包的延时Latency或PDB或等待时间达到一个预设门限或预设定时器;
第一数据单元的误包率,或其对应的PDU的误包率,或其对应的SDU的误包率,比如数据包,或PDU,或SDU的误包率大于等于一个预设门限,这种情况需要一定反馈机制,可能不仅限于UE侧;
目标数据单元的延时,或其对应的PDU的延时,或其对应的SDU的延时,比如上述几项中的任一项大于等于一个预设门限。
在满足上述丢弃条件时,并不一定会对第一数据单元进行丢弃,若所述终端处于预设场景中和/或所述第一数据单元满足第一条件,意味着可能同一分组内的其它数据单元,或者关联的其它数据单元未完成传输,如果丢弃第一数据单元会对这些数据单元的传输造成影响,所以可以放弃丢弃第一数据单元,以保证其它数据单元的传输效率和延时。
其中,第一数据单元可以包括第一数据包和第一分组,第二数据单元可以包括第二数据包和第二分组,第二数据单元对应的第二定时器超时可以是以下至少一项:
所述第一数据包所在分组对应的定时器超时;
与所述第一数据包或其所在的分组有关联关系的第二数据包对应的定时器超时;
与所述第一数据包或其所在的分组有关联关系的第二数据包所在的分组对应的定时器超时;
与所述第一数据包或其所在的分组有关联关系的第二分组对应的定时器超时。
其中,所述第一目标类分组满足以下至少一项:
所述第一目标类分组属于低优先级分组;
所述第一目标类分组不属于高优先级分组;
所述第一目标类分组的优先级低于预设优先级;
所述第一目标类分组属于低延时需求分组;
所述第一目标类分组的延时需求低于预设延时需求;
所述第一目标类分组的PoD需求低于预设PoD需求;
所述第一目标类分组为业务中的P帧分组或P slice;
所述第一目标类分组为业务中的B帧分组或B slice;
所述第一目标类分组为业务中的增强层分组;
所述第一目标类分组为业务中的non-Fov帧分组;
所述第一目标类分组属于低QoS需求分组;
所述第一目标类分组的QoS需求低于预设QoS需求;
所述第一目标类分组映射的QoS流的优先级为低优先级或低于预设优先级;
所述第一目标类分组映射的LCH的优先级为低优先级或低于预设优先级;
所述第一目标类分组中的至少部分数据单元与其他数据单元不存在关联关系;
其他数据单元不依赖于所述第一目标类分组中的至少部分数据单元;
与所述第一目标类分组关联的至少部分数据包或分组已成功传输;
依赖于所述第一目标类分组的至少部分数据包或分组已成功传输;
所述第一目标类分组中的至少部分数据包已成功传输;
所述第一目标类分组为所述第一目标类数据包所在分组;
与所述第一目标类数据包关联的分组;
依赖于所述第一目标类数据包的分组。
所述第一目标类数据包满足以下至少一项:
所述第一目标类数据包为所述第一目标类分组中的数据包;
所述第一目标类数据包与所述第一目标类分组关联;
所述第一目标类数据包依赖于所述第一目标类分组;
与所述第一目标类分组关联的分组内的数据包;
依赖于所述第一目标类分组的分组内的数据包;
所述第一目标类数据包的优先级属于低优先级数据包;
所述第一目标类数据包的优先级低于预设优先级;
所述第一目标类数据包的延时需求属于低延时需求;
所述第一目标类数据包的延时需求低于预设延时需求;
所述第一目标类分组的PoD需求低于预设PoD需求;
所述第一目标类数据包为业务中的P帧数据包或P slice数据包;
所述第一目标类数据包为业务中的B帧数据包或B slice数据包;
所述第一目标类数据包为业务中的增强层数据包;
所述第一目标类数据包为业务中的non-Fov帧数据包;
所述第一目标类数据包的QoS需求属于低QoS需求;
所述第一目标类数据包的QoS需求低于预设QoS需求;
所述第一目标类数据包映射的QoS流的优先级为低优先级或低于预设优先级;
所述第一目标类数据包映射的LCH的优先级为低优先级或低于预设优先级;
所述第一目标类数据包中的至少部分数据包与其他数据包不存在关联关系;
其他数据单元不依赖于所述第一目标类数据包中的至少部分数据包;
与所述第一目标类数据包关联的至少部分数据包或分组已成功传输;
依赖于所述第一目标类数据包的至少部分数据包或分组已成功传输;
所述第一目标类数据包中的至少部分数据包已成功传输。
第一定时器可以为丢弃定时器。丢弃定时器用于控制数据包或分组的丢弃,比如,当数据包或分组对应的丢弃定时器超时,可以丢弃对应的数据包或分组。
一些实施例中,所述第一数据单元为第一数据包,与所述第一数据包关联的第二数据单元包括以下至少一项:
第一分组内的数据包,所述第一分组为所述第一数据包所在分组;
第二数据包,与所述第一数据包或所述第一分组关联;
第二分组内的数据包,所述第二分组与所述第一数据包或所述第一分组关联;
与所述第一定时器对应的数据包;
第四分组内的数据包,所述第四分组与所述第一定时器对应。
上述第二数据单元为与第一数据单元关联的数据单元,在上述第二数据单元对应的第二定时器超时后,可以丢弃第一数据单元。
一些实施例中,在所述终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,所述终端放弃对所述第一数据单元进行丢弃,包括:
在所述第一数据单元满足预设的丢弃条件,所述第一数据单元未成功传输,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件,所述终端放弃对所述第一数据单元进行丢弃。
虽然第一数据单元满足丢弃条件,第一数据单元未成功传输,但是可能同一分组内的其它数据单元,或者关联的其它数据单元未完成传输,如果丢弃第一数据单元会对这些数据单元的传输造成影响,所以可以放弃丢弃第一数据单元,以保证其它数据单元的传输效率和延时。另外,对于第一数据单元,如果其满足丢弃条件,且第一数据单元成功传输,则终端丢弃第一数据单元。
一些实施例中,所述方法还包括:
在所述第一数据单元满足所述预设的丢弃条件的情况下,所述终端停止或重启所述第一定时器。这样可以推迟第一数据单元的丢弃,通常情况下,若第一定时器超时,则其对应的第一数据单元需要丢弃。而通过停止或重启所述第一定时器,可以放弃对第一数据单元的丢弃,从而保证其它相关联的其它数据单元的传输效率和延时。其中,第一定时器可以为第一数据包关联的定时器,或者,第一数据包所在分组关联的定时器。
一些实施例中,所述方法还包括:
在所述第一数据单元成功传输的情况下,所述终端停止或重启所述第一定时器。这样可以推迟第一数据单元的丢弃,通常情况下,若所述第一数据单元成功传输,则其对应的第一数据单元需要丢弃。而通过停止或重启所述第一定时器,可以放弃对第一数据单元的丢弃,从而保证其它相关联的其它数据单元的传输效率和延时。
一些实施例中,所述第一定时器的开始时刻采用以下任一项:
所述第一数据单元的生成时刻,比如生成PDCP SDU的时刻;
接收到上层指示的所述第一数据单元的时刻,所述上层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,上层指当前数据包或分组所在协议层的上层;
所述第一数据单元初始化传输的时刻;
所述第一数据单元开始传输的时刻。
通过在第一数据单元生成、接收到所述第一数据单元、开始传输、或初始化传输时刻启动第一定时器,可以通过第一定时器有效控制其对应的第一数据单元的保留和丢弃,即定时器的启动时刻对应数据单元的生存周期起点或在系统传输中的生命周期起点。
一些实施例中,所述预设场景包括以下至少一项:
第二数据单元正在传输,比如第二数据或第二数据包所在的分组(或数据包集合)正在传输,或者,第二分组正在传输;
第二数据单元已成功传输,比如第二数据或第二数据包所在的分组(或数据包集合)已成功传输,或者,第二分组已成功传输;
其中,所述第二数据单元与所述第一数据单元关联,包括以下至少一项:第二数据包与第一数据包关联,第二数据包与第一数据包所在分组关联,第二数据包与第一分组关联,第二数据包所在分组与第一数据包关联,第二数据包所在分组与第一数据包所在分组关联,第二数据包所在分组与第一分组关联,第二分组与第一数据包关联,第二分组与第一数据包所在分组关联,第二分组与第一分组关联。所述第二数据单元与所述第一数据单元关联,是指其中一者的第一操作依赖于另一者,所述第一操作包括以下至少一项:传输、解码、解调、接收、显示、完整性验证。
当处于上述预设场景中时,即使第一数据单元满足丢弃条件,为了避免丢弃第一数据单元对第二数据单元的传输或接收造成影响,会放弃丢弃第一数据单元,以保证第二数据单元的传输和接收。
一些实施例中,所述第一条件包括以下至少一项:
接收到网络侧设备配置的第二指示,网络侧设备包括:基站设备、核心 网设备(比如接入和移动管理功能(Access and Mobility Management Function,AMF),应用功能(Application Function,AF),用户面功能(User Plane Function,UPF)等)、服务器端、数据源侧;
收到第一协议层指示的第二指示;
基于第二目标信息判断需要放弃丢弃所述第一数据单元,所述第二目标信息用于指示以下至少一项:
所述终端是否支持载波聚合CA或双连接DC;比如,当终端支持CA或DC,则终端放弃丢弃所述第一数据单元;
为所述终端是否配置或激活载波聚合CA或双连接DC;比如当终端未配置CA或DC,或者当终端未被激活CA或DC,则终端放弃丢弃所述第一数据单元;
信道资源足够多,比如第一目标信道资源大于或等于一个预设门限,所述第一目标信道资源包括:网络侧设备为所述终端配置的资源,或用于传输所述第一数据单元的资源;
信道质量好,信道测量性能高于一个预设门限,比如第一目标信道测量性能大于或等于一个预设门限,所述第一目标信道包括:所述终端的信道,或用于传输所述第一数据单元的信道,信道质量可以通过RSRP,RSRQ,SINR等表示;
所述第一数据单元的第一目标尺寸小于或等于一个预设门限;所述第一目标尺寸包括:第一数据单元的大小,或其对应的PDU的大小,或其对应的SDU的大小,或其对应的BSR的大小,或其对应的SR的大小;
所述终端第一目标数据队列的数据包数量小于或等于一个预设门限;所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
所述第一目标需求达到一个预设门限;所述第一目标需求包括:所述终端或所述第一数据单元的延时Latency需求;或所述终端或所述第一数据单元的PDB需求;
其中,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,物理(Physical,PHY)层。
一些实施例中,所述第二指示用于指示以下任一项:
在所述第一数据单元满足预设的丢弃条件的情况下,不对所述第一数据单元进行丢弃;
在所述第一数据单元满足预设的丢弃条件的情况下,且处于所述预设场景,不对所述第一数据单元进行丢弃;
在所述终端处于所述预设场景的情况下,不对所述第一数据单元进行丢弃;
在所述第一数据单元满足第一条件的情况下,不对所述第一数据单元进行丢弃;
与所述第一数据单元关联的第二数据单元;
第二数据单元与所述第一数据单元关联;
其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为以下任一项:
与所述第一数据包或所述第一数据包所在分组具有关联关系的第二数据包或第二分组;
与所述第一分组有关联关系的第二数据包或第二分组;
与所述第一数据包在同一分组内的第二数据包。
当处于上述情况时,即使第一数据单元满足丢弃条件,为了避免丢弃第一数据单元对关联的数据单元的传输或接收造成影响,会放弃丢弃第一数据单元,以保证关联的数据单元的传输和接收。
一些实施例中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二数据包,所述第二数据包包括以下至少一项:
第一分组内的至少部分数据包,所述第一分组为所述第一数据包所在分组,比如所述第一数据包所在分组内的部分或者剩下的或者全部数据包;
与所述第一数据包或第一分组关联的至少部分数据包,比如所述第一数据包关联的部分或全部数据包;
第二分组内的至少部分数据包,所述第二分组与所述第一数据包或第一分组关联,比如所述第一数据包关联的数据包所在分组内的部分或者剩下的或者全部数据包,或者所述第一数据包所在分组相关联的其它部分或全部分组内的部分或者剩下的或全部数据包;
与所述第一定时器对应的至少部分数据包,比如与第一定时器对应的部分或全部数据包;
与第五数据包关联的至少部分数据包,所述第五数据包与所述第一定时器对应,比如与第五数据包关联的部分或全部数据包;
第五分组内的至少部分数据包,所述第五分组与所述第一定时器对应,比如与第一定时器对应的部分或全部第五分组内的部分或者剩下的或者全部数据包;
与所述第五分组关联的第六分组内的数据包,比如与第一定时器对应的部分或全部分组相关联的其它部分或全部分组内的部分或者剩下的或全部数据包。
一些实施例中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二分组,所述第二分组包括以下至少一项:
第一分组,所述第一分组为所述第一数据包所在分组;
第二数据包所在分组,所述第二数据包与所述第一数据包关联;
与所述第一分组关联的分组,比如与第一分组相关联的其它部分或全部分组;
与所述第一定时器对应的分组,比如与第一定时器对应的部分或全部分组;
与第五分组关联的分组,所述第五分组与所述第一定时器对应,比如与第一定时器对应的部分或全部分组相关联的其它部分或全部分组。
一些实施例中,所述第一数据单元为数据包,所述数据包包括以下至少一项:
PDCP SDU;
PDCP PDU;
RLC SDU;
RLC PDU;
MAC SDU;
MAC PDU;
物理层数据包,比如transmission block;
RRC层数据包,比如RRC message;
SDAP层PDU;
SDAP层SDU;
IP数据包package;
PDU session对应的数据包;
QoS flow对应的数据包;
无线承载Radio Bearer对应的数据包。
一些实施例中,所述第一数据单元为分组,所述分组为以下至少一项:
多个数据包的组合或集合;
上层的数据包或数据包集合,所述上层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,上层指当前数据包或分组所在协议层的上层;
QoS flow对应的数据包或数据包集合;
业务中的I帧或IDR帧或I slice;
业务中的P帧或P slice;
业务中的B帧或B slice;
业务中的Fov帧;
业务中的non-Fov帧;
业务中的语音数据包或数据包集合;
业务中的视频或图像数据包或数据包集合;
业务中不同优先级的数据包或数据包集合;
业务中的基础层对应的数据包或数据包集合;
业务中的增强层对应的数据包或数据包集合。
在XR业务中,通常使用分层模型(layered model)基于不同的特点将业务数据分成不同的层,其中不同的层对应不同的需求,比如QoS需求、重要程度等,如:
XR或CG业务中的I帧或IDR帧或P帧;
XR或CG业务中的Fov或non-Fov帧;
XR或CG业务中的语音数据包或视频图像数据包;
XR或CG业务中定义的不同优先级的数据包;
XR或CG业务中的基础层或增强层对应的数据包。
对于这些相同层或不同层的数据包之间,可能存在关联或者依赖关系。因此,本实施例的技术方案可以应用在XR或CG业务中,其中上述的不同分组包括同一类型的不同分组或不同类型的不同分组。
需要说明的是,本申请实施例提供的数据传输方法,执行主体可以为数据传输装置,或者该数据传输装置中的用于执行加载数据传输方法的模块。本申请实施例中以数据传输装置执行加载数据传输方法为例,说明本申请实施例提供的数据传输方法。
本申请实施例提供了一种数据传输装置300,应用于终端,如图3所示,所述装置包括:
处理模块310,用于在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,放弃对所述第一数据单元进行丢弃。
一些实施例中,所述预设的丢弃条件包括以下至少一项:
所述第一数据单元对应的第一定时器超时;
第二数据单元对应的第二定时器超时,所述第二数据单元与所述第一数据单元关联;
所述第一数据单元为第一目标类分组内的数据单元;
所述第一数据单元属于第一目标类数据包;
所述终端接收到网络侧设备配置和/或第一协议层指示的第一指示,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
所述第一数据单元的优先级低于预设第一阈值;
所述第一数据单元传输成功;
所述终端基于第一目标信息确定需要丢弃所述第一数据单元,所述第一目标信息包括以下至少一项:所述终端的传输资源;所述终端的内存;所述终端的缓存空间;所述终端的能力;所述终端配置的载波聚合CA;所述终端配置的双连接DC;所述终端的信道质量;所述第一数据单元的大小;所述终 端待传输数据队列的数据大小;所述终端或所述第一数据单元的时延。
一些实施例中,所述第一数据单元为第一数据包,与所述第一数据包关联的第二数据单元包括以下至少一项:
第一分组内的数据包,所述第一分组为所述第一数据包所在分组;
第二数据包,与所述第一数据包或所述第一分组关联;
第二分组内的数据包,所述第二分组与所述第一数据包或所述第一分组关联;
与所述第一定时器对应的数据包;
第四分组内的数据包,所述第四分组与所述第一定时器对应。
一些实施例中,所述处理模块具体用于在所述第一数据单元满足预设的丢弃条件,所述第一数据单元未成功传输,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件,放弃对所述第一数据单元进行丢弃
一些实施例中,所述处理模块还用于在所述第一数据单元满足所述预设的丢弃条件的情况下,停止或重启所述第一定时器。
一些实施例中,所述处理模块还用于在所述第一数据单元成功传输的情况下,停止或重启所述第一定时器。
一些实施例中,所述第一定时器的开始时刻采用以下任一项:
所述第一数据单元的生成时刻;
接收到上层指示的所述第一数据单元的时刻;
所述第一数据单元初始化传输的时刻;
所述第一数据单元开始传输的时刻。
一些实施例中,所述预设场景包括以下至少一项:
第二数据单元正在传输;
第二数据单元已成功传输;
其中,所述第二数据单元与所述第一数据单元关联。
一些实施例中,所述第一条件包括以下至少一项:
接收到网络侧设备配置的第二指示;
收到第一协议层指示的第二指示;
基于第二目标信息判断需要放弃丢弃所述第一数据单元,所述第二目标 信息用于指示以下至少一项:
所述终端是否支持载波聚合CA或双连接DC,比如当终端支持CA或DC,则终端放弃丢弃所述第一数据单元;
为所述终端是否配置或激活载波聚合CA或双连接DC,比如当终端未配置CA或DC,或者当终端未被激活CA或DC,则终端放弃丢弃所述第一数据单元;
网络侧设备为所述终端配置的资源,或用于传输所述第一数据单元的资源;
所述终端的信道,或用于传输所述第一数据单元的信道;
第一数据单元的大小,或其对应的PDU的大小,或其对应的SDU的大小,或其对应的BSR的大小,或其对应的SR的大小;
所述终端的第一目标数据队列的数据包数量,所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
所述终端或所述第一数据单元的延时Latency需求;
所述终端或所述第一数据单元的PDB需求;
其中,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,PHY物理层。
一些实施例中,所述第二指示用于指示以下任一项:
在所述第一数据单元满足预设的丢弃条件的情况下,不对所述第一数据单元进行丢弃;
在所述第一数据单元满足预设的丢弃条件的情况下,且处于所述预设场景,不对所述第一数据单元进行丢弃;
在所述终端处于所述预设场景的情况下,不对所述第一数据单元进行丢弃;
在所述第一数据单元满足第一条件的情况下,不对所述第一数据单元进行丢弃;
与所述第一数据单元关联的第二数据单元;
第二数据单元与所述第一数据单元关联;
其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元 为以下任一项:
与所述第一数据包或所述第一数据包所在分组具有关联关系的第二数据包或第二分组;
与所述第一分组有关联关系的第二数据包或第二分组;
与所述第一数据包在同一分组内的第二数据包。
一些实施例中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二数据包,所述第二数据包包括以下至少一项:
第一分组内的至少部分数据包,所述第一分组为所述第一数据包所在分组;
与所述第一数据包或第一分组关联的至少部分数据包;
第二分组内的至少部分数据包,所述第二分组与所述第一数据包或第一分组关联;
与所述第一定时器对应的至少部分数据包;
与第五数据包关联的至少部分数据包,所述第五数据包与所述第一定时器对应;
第五分组内的至少部分数据包,所述第五分组与所述第一定时器对应;
与所述第五分组关联的第六分组内的数据包。
一些实施例中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二分组,所述第二分组包括以下至少一项:
第一分组,所述第一分组为所述第一数据包所在分组;
第二数据包所在分组,所述第二数据包与所述第一数据包关联;
与所述第一分组关联的分组;
与所述第一定时器对应的分组;
与第五分组关联的分组,所述第五分组与所述第一定时器对应。
一些实施例中,所述第一数据单元为数据包,所述数据包包括以下至少一项:
PDCP SDU;
PDCP PDU;
RLC SDU;
RLC PDU;
MAC SDU;
MAC PDU;
物理层数据包;
RRC层数据包;
SDAP层PDU;
SDAP层SDU;
IP数据包package;
PDU session对应的数据包;
QoS flow对应的数据包;
无线承载Radio Bearer对应的数据包。
一些实施例中,所述第一数据单元为分组,所述分组为以下至少一项:
多个数据包的组合或集合;
上层的数据包或数据包集合,所述上层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
QoS flow对应的数据包或数据包集合;
业务中的I帧或IDR帧或I slice;
业务中的P帧或P slice;
业务中的B帧或B slice;
业务中的Fov帧;
业务中的non-Fov帧;
业务中的语音数据包或数据包集合;
业务中的视频或图像数据包或数据包集合;
业务中不同优先级的数据包或数据包集合;
业务中的基础层对应的数据包或数据包集合;
业务中的增强层对应的数据包或数据包集合。
本申请实施例中的数据传输装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限 于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(Oersonal Computer,PC)、电视机(Television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例提供的数据传输装置能够实现图2的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图4所示,本申请实施例还提供一种通信设备400,包括处理器401,存储器402,存储在存储器402上并可在所述处理器401上运行的程序或指令,例如,该通信设备400为终端时,该程序或指令被处理器401执行时实现上述应用于终端的数据传输方法实施例的各个过程,且能达到相同的技术效果。
本申请实施例还提供一种终端,包括处理器和通信接口,处理器用于在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,放弃对所述第一数据单元进行丢弃。该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图5为实现本申请实施例的一种终端的硬件结构示意图。
该终端1000包括但不限于:射频单元1001、网络模块1002、音频输出单元1003、输入单元1004、传感器1005、显示单元1006、用户输入单元1007、接口单元1008、存储器1009、以及处理器1010等中的至少部分部件。
本领域技术人员可以理解,终端1000还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1010逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图5中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1004可以包括图形处理器(Graphics Processing Unit,GPU)10041和麦克风10042,图形处理器10041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1006可包括显示面板10061, 可以采用液晶显示器、有机发光二极管等形式来配置显示面板10061。用户输入单元1007包括触控面板10071以及其他输入设备10072。触控面板10071,也称为触摸屏。触控面板10071可包括触摸检测装置和触摸控制器两个部分。其他输入设备10072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1001将来自网络侧设备的下行数据接收后,给处理器1010处理;另外,将上行的数据发送给网络侧设备。通常,射频单元1001包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1009可用于存储软件程序或指令以及各种数据。存储器1009可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1009可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器1010可包括一个或多个处理单元;可选的,处理器1010可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1010中。
其中,处理器1010,用于在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,放弃对所述第一数据单元进行丢弃。
一些实施例中,所述预设的丢弃条件包括以下至少一项:
所述第一数据单元对应的第一定时器超时;
第二数据单元对应的第二定时器超时,所述第二数据单元与所述第一数据单元关联;
所述第一数据单元为第一目标类分组内的数据单元;
所述第一数据单元属于第一目标类数据包;
所述终端接收到网络侧设备配置和/或第一协议层指示的第一指示,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
所述第一数据单元的优先级低于预设第一阈值;
所述第一数据单元传输成功;
所述终端基于第一目标信息确定需要丢弃所述第一数据单元,所述第一目标信息包括以下至少一项:所述终端的传输资源;所述终端的内存;所述终端的缓存空间;所述终端的能力;所述终端配置的载波聚合CA;所述终端配置的双连接DC;所述终端的信道质量;所述第一数据单元的大小;所述终端待传输数据队列的数据大小;所述终端或所述第一数据单元的时延。
一些实施例中,所述第一数据单元为第一数据包,与所述第一数据包关联的第二数据单元包括以下至少一项:
第一分组内的数据包,所述第一分组为所述第一数据包所在分组;
第二数据包,与所述第一数据包或所述第一分组关联;
第二分组内的数据包,所述第二分组与所述第一数据包或所述第一分组关联;
与所述第一定时器对应的数据包;
第四分组内的数据包,所述第四分组与所述第一定时器对应。
一些实施例中,处理器1010具体用于在所述第一数据单元满足预设的丢弃条件,所述第一数据单元未成功传输,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件,放弃对所述第一数据单元进行丢弃
一些实施例中,处理器1010还用于在所述第一数据单元满足所述预设的丢弃条件的情况下,停止或重启所述第一定时器。
一些实施例中,处理器1010还用于在所述第一数据单元成功传输的情况下,停止或重启所述第一定时器。
一些实施例中,所述第一定时器的开始时刻采用以下任一项:
所述第一数据单元的生成时刻;
接收到上层指示的所述第一数据单元的时刻;
所述第一数据单元初始化传输的时刻;
所述第一数据单元开始传输的时刻。
一些实施例中,所述预设场景包括以下至少一项:
第二数据单元正在传输;
第二数据单元已成功传输;
其中,所述第二数据单元与所述第一数据单元关联。
一些实施例中,所述第一条件包括以下至少一项:
接收到网络侧设备配置的第二指示;
收到第一协议层指示的第二指示;
基于第二目标信息判断需要放弃丢弃所述第一数据单元,所述第二目标信息用于指示以下至少一项:
所述终端是否支持载波聚合CA或双连接DC;比如,当终端支持CA或DC,则终端放弃丢弃所述第一数据单元;
为所述终端是否配置或激活载波聚合CA或双连接DC;比如当终端未配置CA或DC,或者当终端未被激活CA或DC,则终端放弃丢弃所述第一数据单元;
网络侧设备为所述终端配置的资源,或用于传输所述第一数据单元的资源;
所述终端的信道,或用于传输所述第一数据单元的信道;
第一数据单元的大小,或其对应的PDU的大小,或其对应的SDU的大小,或其对应的BSR的大小,或其对应的SR的大小;
所述终端的第一目标数据队列的数据包数量,所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
所述终端或所述第一数据单元的延时Latency需求;
所述终端或所述第一数据单元的PDB需求;
其中,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,PHY物理层。
一些实施例中,所述第二指示用于指示以下任一项:
在所述第一数据单元满足预设的丢弃条件的情况下,不对所述第一数据单元进行丢弃;
在所述第一数据单元满足预设的丢弃条件的情况下,且处于所述预设场景,不对所述第一数据单元进行丢弃;
在所述终端处于所述预设场景的情况下,不对所述第一数据单元进行丢弃;
在所述第一数据单元满足第一条件的情况下,不对所述第一数据单元进行丢弃;
与所述第一数据单元关联的第二数据单元;
第二数据单元与所述第一数据单元关联;
其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为以下任一项:
与所述第一数据包或所述第一数据包所在分组具有关联关系的第二数据包或第二分组;
与所述第一分组有关联关系的第二数据包或第二分组;
与所述第一数据包在同一分组内的第二数据包。
一些实施例中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二数据包,所述第二数据包包括以下至少一项:
第一分组内的至少部分数据包,所述第一分组为所述第一数据包所在分组;
与所述第一数据包或第一分组关联的至少部分数据包;
第二分组内的至少部分数据包,所述第二分组与所述第一数据包或第一分组关联;
与所述第一定时器对应的至少部分数据包;
与第五数据包关联的至少部分数据包,所述第五数据包与所述第一定时器对应;
第五分组内的至少部分数据包,所述第五分组与所述第一定时器对应;
与所述第五分组关联的第六分组内的数据包。
一些实施例中,所述第一数据单元为第一数据包或第一分组,所述第二 数据单元为第二分组,所述第二分组包括以下至少一项:
第一分组,所述第一分组为所述第一数据包所在分组;
第二数据包所在分组,所述第二数据包与所述第一数据包关联;
与所述第一分组关联的分组;
与所述第一定时器对应的分组;
与第五分组关联的分组,所述第五分组与所述第一定时器对应。
一些实施例中,所述第一数据单元为数据包,所述数据包包括以下至少一项:
PDCP SDU;
PDCP PDU;
RLC SDU;
RLC PDU;
MAC SDU;
MAC PDU;
物理层数据包;
RRC层数据包;
SDAP层PDU;
SDAP层SDU;
IP数据包package;
PDU session对应的数据包;
QoS flow对应的数据包;
无线承载Radio Bearer对应的数据包。
一些实施例中,所述第一数据单元为分组,所述分组为以下至少一项:
多个数据包的组合或集合;
上层的数据包或数据包集合,所述上层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
QoS flow对应的数据包或数据包集合;
业务中的I帧或IDR帧或I slice;
业务中的P帧或P slice;
业务中的B帧或B slice;
业务中的Fov帧;
业务中的non-Fov帧;
业务中的语音数据包或数据包集合;
业务中的视频或图像数据包或数据包集合;
业务中不同优先级的数据包或数据包集合;
业务中的基础层对应的数据包或数据包集合;
业务中的增强层对应的数据包或数据包集合。
本申请实施例还提供一种可读存储介质,所述可读存储介质可以是易失性的,也可以是非易失性的,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非易失的存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种通信设备,被配置为执行上述数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或 者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对相关技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (33)

  1. 一种数据传输方法,包括:
    在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,所述终端放弃对所述第一数据单元进行丢弃。
  2. 根据权利要求1所述的数据传输方法,其中,所述预设的丢弃条件包括以下至少一项:
    所述第一数据单元对应的第一定时器超时;
    第二数据单元对应的第二定时器超时,所述第二数据单元与所述第一数据单元关联;
    所述第一数据单元为第一目标类分组内的数据单元;
    所述第一数据单元属于第一目标类数据包;
    所述终端接收到网络侧设备配置和/或第一协议层指示的第一指示,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
    所述第一数据单元的优先级低于预设第一阈值;
    所述第一数据单元传输成功;
    所述终端基于第一目标信息确定需要丢弃所述第一数据单元,所述第一目标信息包括以下至少一项:所述终端的传输资源;所述终端的内存;所述终端的缓存空间;所述终端的能力;所述终端配置的载波聚合CA;所述终端配置的双连接DC;所述终端的信道质量;所述第一数据单元的大小;所述终端待传输数据队列的数据大小;所述终端或所述第一数据单元的时延。
  3. 根据权利要求2所述的数据传输方法,其中,所述第一数据单元为第一数据包,与所述第一数据包关联的第二数据单元包括以下至少一项:
    第一分组内的数据包,所述第一分组为所述第一数据包所在分组;
    第二数据包,与所述第一数据包或所述第一分组关联;
    第二分组内的数据包,所述第二分组与所述第一数据包或所述第一分组关联;
    与所述第一定时器对应的数据包;
    第四分组内的数据包,所述第四分组与所述第一定时器对应。
  4. 根据权利要求1所述的数据传输方法,其中,在所述终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,所述终端放弃对所述第一数据单元进行丢弃,包括:
    在所述第一数据单元满足预设的丢弃条件,所述第一数据单元未成功传输,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件,所述终端放弃对所述第一数据单元进行丢弃。
  5. 根据权利要求2所述的数据传输方法,其中,所述方法还包括:
    在所述第一数据单元满足所述预设的丢弃条件的情况下,所述终端停止或重启所述第一定时器。
  6. 根据权利要求2所述的数据传输方法,其中,所述方法还包括:
    在所述第一数据单元成功传输的情况下,所述终端停止或重启所述第一定时器。
  7. 根据权利要求2所述的数据传输方法,其中,所述第一定时器的开始时刻采用以下任一项:
    所述第一数据单元的生成时刻;
    接收到上层指示的所述第一数据单元的时刻;
    所述第一数据单元初始化传输的时刻;
    所述第一数据单元开始传输的时刻。
  8. 根据权利要求1所述的数据传输方法,其中,所述预设场景包括以下至少一项:
    第二数据单元正在传输;
    第二数据单元已成功传输;
    其中,所述第二数据单元与所述第一数据单元关联。
  9. 根据权利要求1所述的数据传输方法,其中,所述第一条件包括以下至少一项:
    接收到网络侧设备配置的第二指示;
    收到第一协议层指示的第二指示;
    基于第二目标信息判断需要放弃丢弃所述第一数据单元,所述第二目标信息用于指示以下至少一项:
    所述终端是否支持载波聚合CA或双连接DC;
    为所述终端是否配置或激活载波聚合CA或双连接DC;
    网络侧设备为所述终端配置的资源,或用于传输所述第一数据单元的资源;
    所述终端的信道,或用于传输所述第一数据单元的信道;
    第一数据单元的大小,或其对应的PDU的大小,或其对应的SDU的大小,或其对应的BSR的大小,或其对应的SR的大小;
    所述终端的第一目标数据队列的数据包数量,所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
    所述终端或所述第一数据单元的延时Latency需求;
    所述终端或所述第一数据单元的PDB需求;
    其中,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,PHY物理层。
  10. 根据权利要求9所述的数据传输方法,其中,所述第二指示用于指示以下任一项:
    在所述第一数据单元满足预设的丢弃条件的情况下,不对所述第一数据单元进行丢弃;
    在所述第一数据单元满足预设的丢弃条件的情况下,且处于所述预设场景,不对所述第一数据单元进行丢弃;
    在所述终端处于所述预设场景的情况下,不对所述第一数据单元进行丢弃;
    在所述第一数据单元满足第一条件的情况下,不对所述第一数据单元进行丢弃;
    与所述第一数据单元关联的第二数据单元;
    第二数据单元与所述第一数据单元关联;
    其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元 为以下任一项:
    与所述第一数据包或所述第一数据包所在分组具有关联关系的第二数据包或第二分组;
    与所述第一分组有关联关系的第二数据包或第二分组;
    与所述第一数据包在同一分组内的第二数据包。
  11. 根据权利要求8所述的数据传输方法,其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二数据包,所述第二数据包包括以下至少一项:
    第一分组内的至少部分数据包,所述第一分组为所述第一数据包所在分组;
    与所述第一数据包或第一分组关联的至少部分数据包;
    第二分组内的至少部分数据包,所述第二分组与所述第一数据包或第一分组关联;
    与第一定时器对应的至少部分数据包,所述第一定时器与所述第一数据单元对应;
    与第五数据包关联的至少部分数据包,所述第五数据包与所述第一定时器对应;
    第五分组内的至少部分数据包,所述第五分组与所述第一定时器对应;
    与所述第五分组关联的第六分组内的数据包。
  12. 根据权利要求8所述的数据传输方法,其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二分组,所述第二分组包括以下至少一项:
    第一分组,所述第一分组为所述第一数据包所在分组;
    第二数据包所在分组,所述第二数据包与所述第一数据包关联;
    与所述第一分组关联的分组;
    与第一定时器对应的分组,所述第一定时器与所述第一数据单元对应;
    与第五分组关联的分组,所述第五分组与所述第一定时器对应。
  13. 根据权利要求1所述的数据传输方法,其中,所述第一数据单元为数据包,所述数据包包括以下至少一项:
    PDCP SDU;
    PDCP PDU;
    RLC SDU;
    RLC PDU;
    MAC SDU;
    MAC PDU;
    物理层数据包;
    RRC层数据包;
    SDAP层PDU;
    SDAP层SDU;
    IP数据包package;
    PDU session对应的数据包;
    QoS flow对应的数据包;
    无线承载Radio Bearer对应的数据包。
  14. 根据权利要求1所述的数据传输方法,其中,所述第一数据单元为分组,所述分组为以下至少一项:
    多个数据包的组合或集合;
    上层的数据包或数据包集合,所述上层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
    QoS flow对应的数据包或数据包集合;
    业务中的I帧或IDR帧或I slice;
    业务中的P帧或P slice;
    业务中的B帧或B slice;
    业务中的Fov帧;
    业务中的non-Fov帧;
    业务中的语音数据包或数据包集合;
    业务中的视频或图像数据包或数据包集合;
    业务中不同优先级的数据包或数据包集合;
    业务中的基础层对应的数据包或数据包集合;
    业务中的增强层对应的数据包或数据包集合。
  15. 一种数据传输装置,包括:
    处理模块,用于在终端待传输的第一数据单元满足预设的丢弃条件,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件的情况下,放弃对所述第一数据单元进行丢弃。
  16. 根据权利要求15所述的数据传输装置,其中,所述预设的丢弃条件包括以下至少一项:
    所述第一数据单元对应的第一定时器超时;
    第二数据单元对应的第二定时器超时,所述第二数据单元与所述第一数据单元关联;
    所述第一数据单元为第一目标类分组内的数据单元;
    所述第一数据单元属于第一目标类数据包;
    所述终端接收到网络侧设备配置和/或第一协议层指示的第一指示,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
    所述第一数据单元的优先级低于预设第一阈值;
    所述第一数据单元传输成功;
    所述终端基于第一目标信息确定需要丢弃所述第一数据单元,所述第一目标信息包括以下至少一项:所述终端的传输资源;所述终端的内存;所述终端的缓存空间;所述终端的能力;所述终端配置的载波聚合CA;所述终端配置的双连接DC;所述终端的信道质量;所述第一数据单元的大小;所述终端待传输数据队列的数据大小;所述终端或所述第一数据单元的时延。
  17. 根据权利要求16所述的数据传输装置,其中,所述第一数据单元为第一数据包,与所述第一数据包关联的第二数据单元包括以下至少一项:
    第一分组内的数据包,所述第一分组为所述第一数据包所在分组;
    第二数据包,与所述第一数据包或所述第一分组关联;
    第二分组内的数据包,所述第二分组与所述第一数据包或所述第一分组关联;
    与所述第一定时器对应的数据包;
    第四分组内的数据包,所述第四分组与所述第一定时器对应。
  18. 根据权利要求15所述的数据传输装置,其中,所述处理模块具体用于在所述第一数据单元满足预设的丢弃条件,所述第一数据单元未成功传输,且所述终端处于预设场景中和/或所述第一数据单元满足第一条件,放弃对所述第一数据单元进行丢弃。
  19. 根据权利要求16所述的数据传输装置,其中,所述处理模块还用于在所述第一数据单元满足所述预设的丢弃条件的情况下,停止或重启所述第一定时器。
  20. 根据权利要求16所述的数据传输装置,其中,所述处理模块还用于在所述第一数据单元成功传输的情况下,所述终端停止或重启所述第一定时器。
  21. 根据权利要求16所述的数据传输装置,其中,所述第一定时器的开始时刻采用以下任一项:
    所述第一数据单元的生成时刻;
    接收到上层指示的所述第一数据单元的时刻;
    所述第一数据单元初始化传输的时刻;
    所述第一数据单元开始传输的时刻。
  22. 根据权利要求15所述的数据传输装置,其中,所述预设场景包括以下至少一项:
    第二数据单元正在传输;
    第二数据单元已成功传输;
    其中,所述第二数据单元与所述第一数据单元关联。
  23. 根据权利要求15所述的数据传输装置,其中,所述第一条件包括以下至少一项:
    接收到网络侧设备配置的第二指示;
    收到第一协议层指示的第二指示;
    基于第二目标信息判断需要放弃丢弃所述第一数据单元,所述第二目标信息用于指示以下至少一项:
    所述终端是否支持载波聚合CA或双连接DC;
    为所述终端是否配置或激活载波聚合CA或双连接DC;
    网络侧设备为所述终端配置的资源,或用于传输所述第一数据单元的资源;
    所述终端的信道,或用于传输所述第一数据单元的信道;
    第一数据单元的大小,或其对应的PDU的大小,或其对应的SDU的大小,或其对应的BSR的大小,或其对应的SR的大小;
    所述终端的第一目标数据队列的数据包数量,所述第一目标数据队列包括:第一数据单元的队列,或待传输的数据队列;
    所述终端或所述第一数据单元的延时Latency需求;
    所述终端或所述第一数据单元的PDB需求;
    其中,所述第一协议层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层,PHY物理层。
  24. 根据权利要求23所述的数据传输装置,其中,所述第二指示用于指示以下任一项:
    在所述第一数据单元满足预设的丢弃条件的情况下,不对所述第一数据单元进行丢弃;
    在所述第一数据单元满足预设的丢弃条件的情况下,且处于所述预设场景,不对所述第一数据单元进行丢弃;
    在所述终端处于所述预设场景的情况下,不对所述第一数据单元进行丢弃;
    在所述第一数据单元满足第一条件的情况下,不对所述第一数据单元进行丢弃;
    与所述第一数据单元关联的第二数据单元;
    第二数据单元与所述第一数据单元关联;
    其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为以下任一项:
    与所述第一数据包或所述第一数据包所在分组具有关联关系的第二数据包或第二分组;
    与所述第一分组有关联关系的第二数据包或第二分组;
    与所述第一数据包在同一分组内的第二数据包。
  25. 根据权利要求22所述的数据传输装置,其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二数据包,所述第二数据包包括以下至少一项:
    第一分组内的至少部分数据包,所述第一分组为所述第一数据包所在分组;
    与所述第一数据包或第一分组关联的至少部分数据包;
    第二分组内的至少部分数据包,所述第二分组与所述第一数据包或第一分组关联;
    与第一定时器对应的至少部分数据包,所述第一定时器与所述第一数据单元对应;
    与第五数据包关联的至少部分数据包,所述第五数据包与所述第一定时器对应;
    第五分组内的至少部分数据包,所述第五分组与所述第一定时器对应;
    与所述第五分组关联的第六分组内的数据包。
  26. 根据权利要求22所述的数据传输装置,其中,所述第一数据单元为第一数据包或第一分组,所述第二数据单元为第二分组,所述第二分组包括以下至少一项:
    第一分组,所述第一分组为所述第一数据包所在分组;
    第二数据包所在分组,所述第二数据包与所述第一数据包关联;
    与所述第一分组关联的分组;
    与第一定时器对应的分组,所述第一定时器与所述第一数据单元对应;
    与第五分组关联的分组,所述第五分组与所述第一定时器对应。
  27. 根据权利要求15所述的数据传输装置,其中,所述第一数据单元为数据包,所述数据包包括以下至少一项:
    PDCP SDU;
    PDCP PDU;
    RLC SDU;
    RLC PDU;
    MAC SDU;
    MAC PDU;
    物理层数据包;
    RRC层数据包;
    SDAP层PDU;
    SDAP层SDU;
    IP数据包package;
    PDU session对应的数据包;
    QoS flow对应的数据包;
    无线承载Radio Bearer对应的数据包。
  28. 根据权利要求15所述的数据传输装置,其中,所述第一数据单元为分组,所述分组为以下至少一项:
    多个数据包的组合或集合;
    上层的数据包或数据包集合,所述上层包括以下至少一项:应用层,IP层,RRC层,SDAP层,PDCP层,RLC层,MAC层;
    QoS flow对应的数据包或数据包集合;
    业务中的I帧或IDR帧或I slice;
    业务中的P帧或P slice;
    业务中的B帧或B slice;
    业务中的Fov帧;
    业务中的non-Fov帧;
    业务中的语音数据包或数据包集合;
    业务中的视频或图像数据包或数据包集合;
    业务中不同优先级的数据包或数据包集合;
    业务中的基础层对应的数据包或数据包集合;
    业务中的增强层对应的数据包或数据包集合。
  29. 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至14任一项所述的数据传输方法的步骤。
  30. 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1-14任一项所述的数据传输方法。
  31. 一种芯片,包括处理器和通信接口,其中,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1-14任一项所述的数据传输方法。
  32. 一种计算机程序产品,其中,所述计算机程序产品被存储在非易失的存储介质中,所述计算机程序产品被至少一个处理器执行时实现如权利要求1-14任一项所述的数据传输方法。
  33. 一种通信设备,被配置为执行如权利要求1-14任一项所述的数据传输方法。
PCT/CN2022/124882 2021-10-19 2022-10-12 数据传输方法、装置及终端 WO2023066107A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111216444.5 2021-10-19
CN202111216444.5A CN115996423A (zh) 2021-10-19 2021-10-19 数据传输方法、装置及终端

Publications (1)

Publication Number Publication Date
WO2023066107A1 true WO2023066107A1 (zh) 2023-04-27

Family

ID=85992895

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/124882 WO2023066107A1 (zh) 2021-10-19 2022-10-12 数据传输方法、装置及终端

Country Status (2)

Country Link
CN (1) CN115996423A (zh)
WO (1) WO2023066107A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090201814A1 (en) * 2008-02-08 2009-08-13 Fujitsu Limited Communication control apparatus, communication control method, recording medium storing communication control program
US20190089675A1 (en) * 2016-03-16 2019-03-21 Nec Corporation Network address translation device, setting requesting device, communication system, communication method and storage medium storing program
JP2021033480A (ja) * 2019-08-20 2021-03-01 株式会社chaintope 情報処理方法、情報処理システム、及びサーバシステム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090201814A1 (en) * 2008-02-08 2009-08-13 Fujitsu Limited Communication control apparatus, communication control method, recording medium storing communication control program
US20190089675A1 (en) * 2016-03-16 2019-03-21 Nec Corporation Network address translation device, setting requesting device, communication system, communication method and storage medium storing program
JP2021033480A (ja) * 2019-08-20 2021-03-01 株式会社chaintope 情報処理方法、情報処理システム、及びサーバシステム

Also Published As

Publication number Publication date
CN115996423A (zh) 2023-04-21

Similar Documents

Publication Publication Date Title
WO2022213923A1 (zh) 传输处理方法、装置及通信设备
WO2023046196A1 (zh) 辅助信息上报方法、业务配置方法、终端及网络侧设备
WO2014198023A1 (zh) 一种调度方法及基站
WO2023066107A1 (zh) 数据传输方法、装置及终端
WO2023040893A1 (zh) 连续lbt失败处理方法及装置、终端及网络侧设备
WO2023066113A1 (zh) 数据传输方法、装置及终端
WO2024065109A1 (zh) 信息传输控制方法、装置、通信设备及存储介质
WO2023066108A1 (zh) 数据传输方法、装置及终端
WO2024120328A1 (zh) 数据包处理方法及装置
WO2024131591A1 (zh) 信息传输方法、装置及通信设备
WO2024131590A1 (zh) 信息传输方法、装置及通信设备
WO2024120322A1 (zh) 数据包处理方法及装置
WO2024099159A1 (zh) 确定丢包的方法、装置、通信设备及可读存储介质
WO2024099086A1 (zh) 辅助信息发送、接收方法、设备及可读存储介质
WO2023016402A1 (zh) 数据传输方法、装置及终端、网络侧设备
WO2023066106A1 (zh) 数据丢弃方法、装置、终端及网络侧设备
CN118233539A (zh) 信息传输方法、装置及通信设备
WO2023066114A1 (zh) 数据处理方法、装置及终端
WO2023016403A1 (zh) 数据传输方法、装置、终端及网络侧设备
WO2023098800A1 (zh) 信息传输方法、装置、终端及网络侧设备
CN118233957A (zh) 信息传输方法、装置及通信设备
WO2023098799A1 (zh) 信息传输方法、装置、终端及网络侧设备
WO2023093636A1 (zh) 信息上报方法、配置方法、装置、终端及网络侧设备
WO2023116836A1 (zh) 图像帧的获取方法、装置及通信设备
WO2023045838A1 (zh) 信息接收、信息上报方法、装置、设备及计算机存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22882717

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE