WO2026002136A1 - 一种数据包丢弃方法及通信装置 - Google Patents
一种数据包丢弃方法及通信装置Info
- Publication number
- WO2026002136A1 WO2026002136A1 PCT/CN2025/103943 CN2025103943W WO2026002136A1 WO 2026002136 A1 WO2026002136 A1 WO 2026002136A1 CN 2025103943 W CN2025103943 W CN 2025103943W WO 2026002136 A1 WO2026002136 A1 WO 2026002136A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- access network
- network device
- data packet
- indication information
- data packets
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
Definitions
- This invention relates to the field of communications, and more particularly to a data packet discarding method and a communication device.
- Extended reality (XR) technology merges the physical and virtual environments, providing users with a fully immersive virtual experience and has broad application prospects.
- XR technology is a collective term encompassing virtual reality (VR), augmented reality (AR), and mixed reality (MR) technologies.
- Services transmitted based on XR technology are called XR services.
- XR services typically use high-definition, real-time video data, characterized by large data volumes and high latency requirements, placing high demands on network transmission capabilities.
- XR service data can be divided into data bursts and packet data unit sets (PDU sets).
- a data burst can contain one or more PDU sets.
- a PDU set includes one or more PDUs.
- the sending end if the sending end generates N PDUs, the receiving end only needs to successfully send any K PDUs (K less than N) to decode the PDU set.
- the access network device can discard the remaining PDUs in the PDU set, thus increasing system capacity.
- how to implement packet (such as PDU) discarding to improve system capacity is a pressing technical problem that needs to be solved.
- This application provides a data packet dropping method and a communication device, which can achieve data packet dropping on the access network device side in the scenario of separate bearer, so as to improve system capacity.
- this application provides a data packet discarding method, the method comprising:
- the first indication information indicating that the second access network device in the decoupled bearer has successfully sent a data packet to the terminal device, the data packet being a data packet in the first data packet group sent by the first access network device in the decoupled bearer to the second access network device;
- a second indication information is sent to the second access network device, the second indication information indicating that the second access network device is allowed to discard data packets in the first data packet group.
- the first indication information can instruct the second access network device to send a successfully transmitted data packet to the terminal device by indicating the sequence number or sequence number range of the data packet that the second access network device successfully transmitted to the terminal device.
- a third indication information may also be sent to the second access network device, which indicates that the second access network device needs to send a data packet to the first access network device to confirm successful transmission.
- the data packet transmission success feedback indication can be performed with fine precision, and it is beneficial to save indication overhead.
- the third indication information can indicate that the second access network device needs to send a data packet containing the sequence number or sequence number range of the data packet that indicates the success feedback sent by the second access network device to the first access network device.
- the General Packet Radio Service Tunneling Protocol User Plane (GTPU) header of the data packet carries a fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for the data packet.
- GTPU General Packet Radio Service Tunneling Protocol User Plane
- a data packet transmission success feedback indication can be provided, enabling precise data packet transmission success feedback indication.
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; before receiving the first indication information from the second access network device, a fifth indication information may also be sent to the second access network device, which indicates that the second access network device needs to send a data packet group to the first access network device to provide feedback on the successful transmission of the data packet.
- the fifth indication information can indicate the data packet group that the second access network device needs to send a successful data packet transmission feedback to the first access network device by indicating the sequence number of the data packet group that the second access network device needs to send a successful data packet transmission feedback to the first access network device.
- the second indication information may indicate the data packets in the first data packet group that the second access network device is allowed to discard by indicating any of the following: the sequence number of the data packets in the first data packet group that the second access network device is allowed to discard, the range of sequence numbers of the data packets in the first data packet group that the second access network device is allowed to discard, and the maximum sequence number of the data packets in the first data packet group that the second access network device is allowed to discard.
- the GTPU header of the data packet carries the sequence number of the data packet group (i.e., the first data packet group) to which the data packet belongs.
- the second indication information can indicate the data packets in the first data packet group that the second access network device is allowed to discard by indicating the sequence number of the first data packet group.
- a sixth indication message may also be sent to the terminal device, the sixth indication message indicating that the data packets in the first data packet group discarded by the sender, which includes a first access network device and/or a second access network device.
- the terminal device can know when the access network device drops data packets, thereby avoiding any impact on the terminal device's data packet reception.
- the sixth indication information can indicate the data packets in the first data packet group that the sender discards by indicating the sequence number or sequence number range of the data packets in the first data packet group.
- the transmission of data packets in the first data packet group to the second access network device can also be stopped. This possible embodiment helps reduce transmission overhead.
- this application provides a data packet dropping method, the method comprising:
- Data packets in the first data packet group are discarded based on the second instruction information.
- the first indication information can instruct the second access network device to send a successfully transmitted data packet to the terminal device by indicating the sequence number or sequence number range of the data packet that the second access network device successfully transmitted to the terminal device.
- a third indication message may be received from the first access network device before sending the first indication message to the first access network device. This third indication message indicates that the second access network device needs to send a data packet indicating successful transmission feedback to the first access network device.
- the third indication information can indicate that the second access network device needs to send a data packet containing the sequence number or sequence number range of the data packet that indicates the success feedback sent by the second access network device to the first access network device.
- the GTPU header of the data packet general packet radio service tunneling protocol user plane carries fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for the data packet.
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; before sending the first indication information to the first access network device, a fifth indication information from the first access network device may also be received, which indicates that the second access network device needs to send the data packet group to the first access network device to provide feedback on the successful transmission of the data packet.
- the fifth indication information can indicate the data packet group that the second access network device needs to send a successful data packet transmission feedback to the first access network device by indicating the sequence number of the data packet group that the second access network device needs to send a successful data packet transmission feedback to the first access network device.
- the second indication information may indicate the data packets in the first data packet group that the second access network device is allowed to discard by indicating any of the following: the sequence number of the data packets in the first data packet group that the second access network device is allowed to discard, the range of sequence numbers of the data packets in the first data packet group that the second access network device is allowed to discard, and the maximum sequence number of the data packets in the first data packet group that the second access network device is allowed to discard.
- the GTPU header of the data packet carries the sequence number of the data packet group (i.e., the first data packet group) to which the data packet belongs.
- the second indication information can indicate the data packets in the first data packet group that the second access network device is allowed to discard by indicating the sequence number of the first data packet group.
- the beneficial effects in the second aspect can be found in the beneficial effects in the first aspect, and will not be repeated here.
- this application provides a data packet discarding method, the method comprising:
- the first indication message indicating the data packet discarding conditions of the data packet in the data packet group to be discarded by the second access network device, the data packet being the data packet sent from the first access network device to the second access network device in the separate bearer.
- data packet dropping can be implemented on the access network device side by exchanging information between the first access network device and the second access network device, thereby improving system capacity.
- the packet dropping condition is the number of packets in the packet group that need to be successfully sent, or the packet dropping condition is the proportion of the number of packets in the packet group that need to be successfully sent to the total number of packets in the packet group.
- the second access network device determines whether or not to discard data packets in a data packet group.
- a third indication information from a first access network device may also be received, the third indication information indicating that the second access network device discards data packets in the first data packet group; and a fourth indication information may be sent to the terminal device based on the third indication information, the fourth indication information indicating that the sending end discards data packets in the first data packet group, the sending end including the first access network device and/or the second access network device.
- the third indication information can indicate the data packets in the first data packet group discarded by the second access network device by indicating the sequence number or sequence number range of the data packets in the first data packet group discarded by the second access network device.
- the fourth indication information can indicate the data packets in the first data packet group discarded by the sending end by indicating the sequence number or sequence number range of the data packets in the first data packet group discarded by the sending end.
- this application provides a data packet discarding method, the method comprising:
- the data packets in the first data packet group are discarded.
- the packet dropping condition is the number of packets in the packet group that need to be successfully sent, or the packet dropping condition is the proportion of the number of packets in the packet group that need to be successfully sent to the total number of packets in the packet group.
- a second indication message may also be sent to the first access network device, the second indication message indicating a first data packet group that has met the data packet discarding condition.
- the second indication information can indicate the first data packet group that has reached the data packet discarding condition by indicating the sequence number of the first data packet group that has reached the data packet discarding condition.
- a third indication message may also be sent to the first access network device, which indicates that the second access network device should discard data packets in the first data packet group.
- the third indication information can indicate the data packets in the first data packet group discarded by the second access network device by indicating the sequence number or sequence number range of the data packets in the first data packet group discarded by the second access network device.
- the beneficial effects of the fourth aspect can be found in the beneficial effects of the third aspect, and will not be repeated here.
- this application provides a communication device that includes a unit for performing the methods described in the first, second, third, or fourth aspects above.
- this application provides a chip including a processor and a communication interface, the processor being configured to cause the chip to perform the methods described in the first, second, third, or fourth aspects above.
- this application provides a module device, which includes a communication module, a power module, a storage module, and a chip, wherein: the power module is used to provide electrical energy to the module device; the storage module is used to store data and instructions; the communication module is used to perform internal communication within the module device, or to enable communication between the module device and external devices; and the chip is used to execute the methods described in the first, second, third, or fourth aspects above.
- embodiments of the present invention disclose a communication device, the communication device including a memory and a processor, the memory being used to store a computer program, the computer program including program instructions, and the processor being configured to invoke the program instructions to execute the methods described in the first, second, third, or fourth aspects above.
- this application provides a computer-readable storage medium storing computer-readable instructions that, when executed on a communication device, cause the communication device to perform the methods described in the first, second, third, or fourth aspects.
- this application provides a communication system including a first access network device and a second access network device, wherein the first access network device is used to perform the method described in the first aspect, and the second access network device is used to perform the method described in the second aspect.
- the symbol "/" can indicate that the preceding and following objects are in an "or” relationship.
- the symbol "/” can also represent a division sign, i.e., performing a division operation.
- A/B can mean A divided by B.
- the communication system shown in Figure 1 may include, but is not limited to, a first access network device, a second access network device, and a terminal device.
- the number and form of the devices in Figure 1 are for illustrative purposes only and do not constitute a limitation on the embodiments of this application. For example, in actual applications, multiple terminal devices may be included.
- Access network equipment can be a device with transceiver capabilities, which can be used to communicate with terminal devices.
- access network devices can be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, and data transmission and reception on the air interface side.
- RRM radio resource management
- QoS quality of service
- devices in a CN may include access and mobility management functions (AMF), user plane functions (UPF), session management functions (SMF), etc.
- AMF access and mobility management functions
- UPF user plane functions
- SMF session management functions
- access network devices can also be access points (APs) in WLANs, relay stations, communication devices in future PLMN networks, communication devices in NTN networks, etc.
- APs access points
- the access network device may include means for providing wireless communication capabilities to terminal devices, such as a chip system, a chip, or a chip module.
- terminal devices such as a chip system, a chip, or a chip module.
- the chip system may include a chip, or it may include other discrete devices.
- access network devices can communicate with Internet Protocol (IP) networks, such as the Internet, private IP networks, or other data networks.
- IP Internet Protocol
- the CU is responsible for handling non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer.
- the DU Dedicated Unit
- the DU is responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer.
- the AAU Active Access Unit
- RRC layer information ultimately becomes PHY layer information, or is derived from PHY layer information
- higher-layer signaling can be considered as generated by the CU (Core Unit) and sent by the DU, or jointly sent by the DU and AAU.
- access network equipment can include at least one of the CU, DU, and AAU.
- the CU can be classified as a RAN (Radio Access Network) device, or it can be classified as a core network device; there are no specific limitations on this.
- the access network device can be any one of the multiple sites performing coherent joint transmission (CJT) with the terminal device, or other sites outside of those multiple sites, or other access network devices communicating with the terminal device via the network; no specific limitations are imposed.
- Multi-site coherent joint transmission can be joint coherent transmission by multiple sites, or different data belonging to the same Physical Downlink Shared Channel (PDSCH) being sent from different sites to the terminal device, or multiple sites being virtually merged into one site for transmission. Names with the same meaning as those specified in other standards also apply to this application; that is, this application does not limit the names of these parameters.
- the sites in multi-site coherent joint transmission can be remote radio heads (RRHs), transmission and reception points (TRPs), access network devices, etc., without specific limitations.
- the access network device can be any one of the multiple sites performing noncoherent cooperative transmission with the terminal device, or other sites outside of the multiple sites, or other access network devices communicating with the terminal device. No specific limitations are imposed on this.
- the multi-site noncoherent cooperative transmission can be a joint noncoherent transmission by multiple sites, or different data belonging to the same PDSCH being sent to the terminal device from different sites, or different data belonging to the same PDSCH being sent to the terminal device from different sites. Names with the same meaning as those specified in other standards also apply to this application; that is, this application does not limit the names of these parameters.
- the sites in the multi-site noncoherent cooperative transmission can be RRH, TRP, access network devices, etc., without specific limitations.
- access network equipment can provide services to a cell, and terminal equipment within that cell can communicate with the access network equipment via transmission resources (such as spectrum resources).
- This cell can be a macro cell, small cell, metro cell, micro cell, pico cell, or femto cell, etc.
- the access network device described in the embodiments of this application may be a chip, chip module, device, unit, etc., and there are no specific limitations on it.
- the access network device For a data packet group consisting of N data packets, the access network device only needs to successfully send any K data packets (K less than N) to the terminal device for the terminal device to decode the data packet group.
- K K less than N
- the access network device can discard the remaining data packets in the data packet group, thus increasing system capacity.
- this application provides a data packet discarding method and communication device. The data packet discarding method and communication device provided in this application are further described below:
- FIG 4 is a flowchart of a data packet discarding method provided in an embodiment of this application.
- the data packet discarding method includes steps 401 to 403.
- the method execution entity shown in Figure 4 can be a first access network device and a second access network device, or the entity can be a chip in the first access network device and a chip in the second access network device.
- the method execution entity shown in Figure 4 can also be other types of products, and those skilled in the art can further expand upon this based on the content disclosed in the specification.
- the method execution entity shown in Figure 4 uses a first access network device and a second access network device as examples. Wherein:
- the second access network device sends a first indication message to the first access network device, indicating that the second access network device in the decoupled bearer has successfully sent a data packet to the terminal device.
- This data packet is a data packet from the first data packet group sent by the first access network device to the second access network device in the decoupled bearer. Accordingly, the first access network device may receive the first indication message.
- the first access network device can send data packets from the first data packet group to the second access network device. After receiving the data packet, the second access network device can send the data packet to the terminal device.
- the first data packet group includes multiple data packets.
- the transmission mode of the separated bearer can be a replication mode or a split mode.
- replication mode and split mode please refer to the description under system architecture, which will not be repeated here.
- the data packets in this embodiment can be protocol data unit (PDU) data packets or other types of data packets, which are not limited in this embodiment.
- the first data packet group can be a PDU set or other types of data packet groups.
- the first indication information can instruct the second access network device to send a successfully transmitted data packet to the terminal device by indicating the sequence number or a range of sequence numbers of the data packet successfully transmitted to the terminal device.
- the sequence number range can cover the sequence numbers of multiple data packets.
- the sequence number of the data packet can be the sequence number (SN) or the count of the data packet, where the count consists of the sequence number and the hyperframe number (HFN).
- the second access network device may, after sending multiple data packets, uniformly indicate to the first access network device the data packets that were successfully sent among those multiple data packets.
- the second access network device can send a first indication message to the first access network device.
- This first indication message can indicate the sequence number of data packet 1 to indicate that data packet 1 was sent successfully.
- the first indication information can indicate the sequence number #1 of data packet 1 and the sequence number #3 of data packet 3.
- the first indication information can indicate the sequence number range of data packets 1 to 3, i.e., sequence number #1 to sequence number #3.
- the second access network device may send the sequence number of a data packet to the first access network device after the data packet is successfully sent, in order to indicate to the first access network device that the data packet has been successfully sent.
- the second access network device can send a first indication message 1 to the first access network device.
- This first indication message 1 indicates sequence number #1, signifying that data packet 1 was successfully sent.
- the second access network device can send a first indication message 2 to the first access network device.
- This first indication message 2 indicates sequence number #2, signifying that data packet 2 was successfully sent.
- the second access network device can send a first indication message 3 to the first access network device.
- This first indication message 3 indicates sequence number #3, signifying that data packet 3 was successfully sent.
- the second access network device may confirm whether the data packet has been successfully sent to the terminal device based on the acknowledged mode (AM) of the RLC or the successful transmission confirmation mechanism of the hybrid automatic repeat request (HARQ) in the MAC layer.
- AM acknowledged mode
- HARQ hybrid automatic repeat request
- the first access network device may also provide a data packet transmission success feedback indication to the second access network device.
- the first access network device providing feedback indication to the second access network device:
- Method 1 The first access network device sends a third indication message to the second access network device, indicating that the second access network device needs to send a data packet indicating successful transmission to the first access network device.
- the second access network device can receive the third indication message.
- Method 1 for data packet transmission success indication allows for precise indication and helps save on indication overhead.
- the first access network device can pre-instruct the second access network device to send a data packet indicating successful transmission to the first access network device. For example, suppose the third instruction information indicates that the second access network device needs to send data packets 1 to 50, which are data packets 1 to 50, to the first access network device. After receiving the third instruction information, the second access network device can instruct the first access network device to send a successfully transmitted data packet from data packets 1 to 50.
- the third indication information can instruct the second access network device to send a data packet containing the sequence number or a range of sequence numbers of the data packet that indicates the second access network device needs to send a successful feedback to the first access network device.
- sequence number and sequence number range please refer to the preceding text; it will not be repeated here.
- the third indication information indicates that the second access network device needs to send a data packet containing data packets 1 to 50 in data packet group 1 to the first access network device as a successful feedback.
- the third indication information could indicate the sequence number #1 of data packet 1, the sequence number #2 of data packet 2, ..., the sequence number #50 of data packet 50.
- the third indication information could indicate a range of sequence numbers, i.e., sequence number #1 to sequence number #50.
- Method 2 The General Packet Radio Service Tunneling Protocol User Plane (GTPU) header of the data packet carries a fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for this data packet. Based on Method 2, the data packet transmission success feedback indication can be precisely executed.
- GTPU General Packet Radio Service Tunneling Protocol User Plane
- the GTPU header of each data packet can carry indication information to indicate whether the second access network device needs to send a successful transmission feedback to the first access network device for that data packet.
- 1 bit can be used in the GTPU header of the data packet to indicate whether the second access network device needs to send a feedback to the first access network device for the successful transmission of the data packet.
- a value of 1 bit indicates that the second access network device needs to send a feedback to the first access network device for the successful transmission of the data packet.
- a value of 0 bit indicates that the second access network device does not need to send a feedback to the first access network device for the successful transmission of the data packet.
- fourth indication information may also be carried in other headers of the data packet, which is not limited in this embodiment.
- Method 3 The GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; the first access network device sends a fifth indication message to the second access network device, which indicates the data packet group to which the second access network device needs to send a successful data packet transmission feedback to the first access network device. Correspondingly, the second access network device can receive this fifth indication message.
- Method 3 for successful data packet transmission feedback helps save on indication overhead.
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs, so that the second access network device can distinguish which data packet group the data packet belongs to.
- the first access network device can pre-instruct the second access network device to send a success feedback message for the data packet to the first access network device. In this way, the second access network device can send a success feedback message for the data packets in that data packet group.
- sequence number of the data packet group to which the data packet belongs may also be carried in other headers of the data packet; this application embodiment does not limit this.
- the fifth indication information can indicate the data packet group that the second access network device needs to send a successful data packet transmission feedback to the first access network device by indicating the sequence number of the data packet group that the second access network device needs to send a successful data packet transmission feedback to the first access network device.
- the GTPU header of the data packet carries an indication of the last data packet in the data packet group to enable the access network device to determine when the first data packet group ends.
- the indication of the last data packet in the data packet group may also be carried in other headers of the data packet; this embodiment of the application does not limit this.
- the first access network device may not provide feedback to the second access network device.
- the second access network device may, by default, send a successful transmission feedback to the first access network device for any data packet.
- the first access network device sends second indication information to the second access network device based on the first indication information.
- the second indication information indicates that the second access network device is allowed to discard data packets in the first data packet group. Accordingly, the second access network device may receive the second indication information.
- the first access network device can determine the data packets in the first data packet group successfully sent by the second access network device to the terminal device based on the first indication information.
- the first access network device can determine the number of data packets in the first data packet group successfully received by the terminal device, or the proportion of the total data packets, based on the data packets in the first data packet group successfully sent by the first access network device and/or the second access network device to the terminal device. Based on the number of data packets in the first data packet group successfully received by the terminal device, or the proportion of the total data packets, the first access network device determines whether to allow the second access network device to discard the data packets in the first data packet group.
- a second indication information is sent to the second access network device to indicate that the second access network device is allowed to discard the data packets in the first data packet group. For example, suppose the first data packet group includes 100 data packets. The terminal device can successfully decode the first data packet group by receiving 60 data packets from it.
- the first access network device sends data packets from the first data packet group to the second access network device. Both the first and second access network devices send data packets from the first data packet group to the terminal device. Assume the first access network device has already sent data packets 1 to 40 to the second access network device.
- the second access network device sends a first indication message to the first access network device, indicating that data packets 1 to 30 were successfully transmitted.
- the first access network device itself successfully sends data packets 51 to 90 from the first data packet group to the terminal device. Based on the data packets successfully sent by both the first and second access network devices to the terminal device, the first access network device determines that the terminal device has successfully received 70 data packets from the first data packet group.
- the first access network device can send a second indication message to the second access network device, instructing the second access network device to discard data packets 31 to 40. After receiving the second indication message, the second access network device discards data packets 31 to 40.
- the first access network device can also discard data packets 41 to 50, and data packets 91 to 100.
- the second indication information may indicate the data packets in the first data packet group that the second access network device is allowed to discard by indicating any of the following: the sequence number of the data packets in the first data packet group that the second access network device is allowed to discard, the range of sequence numbers of the data packets in the first data packet group that the second access network device is allowed to discard, and the maximum sequence number of the data packets in the first data packet group that the second access network device is allowed to discard.
- the second indication information could indicate the sequence number #31 of data packet 31, the sequence number #32 of data packet 32, ..., the sequence number #40 of data packet 40.
- the second indication information could indicate a sequence number range, i.e., sequence numbers #31 to #40.
- the second indication information could indicate the maximum sequence number of the data packets in the first group of data packets to be discarded, i.e., sequence number #40.
- the GTPU header of the data packet carries the sequence number of the data packet group (i.e., the first data packet group).
- the second indication information can indicate the data packets in the first data packet group that the second access network device is permitted to discard by indicating the sequence number of the first data packet group. After receiving the second indication information, the second access network device can discard all unsuccessfully transmitted data packets in the first data packet group.
- the first access network device may further send a sixth indication message to the terminal device, the sixth indication message indicating data packets in the first data packet group discarded by the sending end, which includes the first access network device and/or the second access network device.
- the terminal device can know the data packet discarding situation on the access network device side, thereby avoiding any impact on the terminal device's data packet reception.
- the second access network device discards data packets 31 to 40 in the first data packet group.
- the first access network device discards data packets 41 to 50 and data packets 91 to 100 in the first data packet group. Therefore, the sixth indication information can indicate that the data packets in the first data packet group discarded by the sending end are data packets 31 to 50 and data packets 91 to 100.
- the sixth indication information can indicate the data packets in the first data packet group discarded by the sender by indicating the sequence number or sequence number range of the data packets in the first data packet group discarded.
- the sixth indication information can indicate the sequence number #31 of data packet 31, the sequence number #32 of data packet 32, ..., the sequence number #50 of data packet 50, and the sequence number #91 of data packet 91, the sequence number #92 of data packet 92, ..., the sequence number #100 of data packet 100.
- the second indication information can indicate the sequence number range, namely, sequence number #31 to sequence number #50 and sequence number #91 to sequence number #100.
- the second access network device discards data packets in the first data packet group based on the second indication information.
- FIG. 5 is a flowchart of a data packet discarding method provided in an embodiment of this application.
- the data packet discarding method includes steps 501 to 502.
- the method execution entity shown in Figure 5 can be a first access network device and a second access network device, or the entity can be a chip in the first access network device and a chip in the second access network device.
- the method execution entity shown in Figure 5 can also be other types of products; those skilled in the art can further expand upon this based on the content disclosed in the specification.
- the method execution entity shown in Figure 5 uses a first access network device and a second access network device as examples. Wherein:
- the first access network device sends a first indication message to the second access network device, the first indication message indicating the data packet discarding conditions for the second access network device to discard data packets in the data packet group, the data packets being data packets sent from the first access network device to the second access network device in a separate bearer. Accordingly, the second access network device may receive the first indication message from the first access network device.
- the data packet group includes multiple data packets.
- the first access network device can send data packets to the second access network device, and after receiving the data packets, the second access network device can send the data packets to the terminal device.
- the transmission mode of the split bearer can be a replication mode or a split mode.
- replication mode and split mode please refer to the description under system architecture; it will not be repeated here.
- the data packets in this embodiment can be PDU data packets or other types of data packets; this embodiment does not limit the types.
- the data packet group can be a PDU group or other types of data packet groups.
- the first indication information may indicate a packet dropping condition for a specific packet group.
- the first indication information may also indicate a packet group corresponding to a packet dropping condition, so that the second access network device can determine the packet group to which the packet dropping condition applies.
- the packet dropping condition indicated by the first indication information can be applied to all packet groups.
- the data packet dropping condition for the second access network device to drop data packets in a data packet group can be: the number of data packets in the data packet group that need to be successfully transmitted, or the proportion of the number of data packets in the data packet group that need to be successfully transmitted to the total number of data packets in the data packet group. Based on this possible embodiment, it is beneficial for the second access network device to accurately determine whether or not to drop data packets in the data packet group.
- the second access network device discards data packets in data packet group 1 under the condition that the number of data packets in data packet group 1 that need to be successfully transmitted is 30.
- the first access network device sends data packets 1 to 40 from data packet group 1 to the second access network device.
- the second access network device determines that the data packet group meets the data packet discarding condition, and the second access network device discards the remaining untransmitted data packets in the data packet group, that is, discards data packets 31 to 40.
- the second access network device discards data packets in data packet group 1 based on the condition that the proportion of data packets that need to be successfully transmitted in data packet group 1 is 30%.
- the first access network device sends data packets 1 to 40 from data packet group 1 to the second access network device.
- Data packet group 1 contains a total of 100 data packets.
- the second access network device determines that the data packet group meets the data packet discarding condition, and discards the remaining untransmitted data packets in the data packet group, i.e., discarding data packets 31 to 40.
- the second access network device in response to the first data packet group reaching the data packet discarding condition, discards the data packets in the first data packet group.
- the second access network device may further send a second indication message to the first access network device, indicating that a first data packet group has met the data packet discarding condition.
- the first access network device may also receive the second indication message from the second access network device. Based on the second indication message, the first access network device may stop sending data packets from the first data packet group to the second access network device. This possible embodiment is advantageous for reducing transmission overhead.
- the second indication information can indicate the first data packet group that has reached the data packet discarding condition by indicating the sequence number of the first data packet group that has reached the data packet discarding condition.
- the second access network device may further send a third indication message to the first access network device, indicating that the second access network device has discarded data packets in the first data packet group.
- the first access network device may receive the third indication message from itself.
- the first access network device may send a fourth indication message to the terminal device, indicating that the sending end, including the first access network device and/or the second access network device, has discarded data packets in the first data packet group.
- the terminal device can be aware of the data packet discarding situation on the access network device side, thereby avoiding any impact on the terminal device's data packet reception.
- the second access network device discards data packets 31 to 40 in the first data packet group. Therefore, the third indication information indicates that the second access network device discards data packets 31 to 40 in the first data packet group.
- the first access network device discards data packets 41 to 50 and data packets 91 to 100 in the first data packet group. Therefore, the fourth indication information can indicate that the sending end discards data packets 31 to 50 and data packets 91 to 100 in the first data packet group.
- the third indication information can indicate the data packets in the first data packet group discarded by the second access network device by indicating the sequence number or sequence number range of the data packets in the first data packet group.
- the third indication information can indicate the sequence number #31 of data packet 31, the sequence number #32 of data packet 32, ..., the sequence number #40 of data packet 40.
- the fourth indication information can indicate the data packets in the first data packet group discarded by the sending end by indicating the sequence number or sequence number range of the data packets in the first data packet group discarded by the sending end.
- the fourth indication information can indicate the sequence number #31 of data packet 31, the sequence number #32 of data packet 32, ..., the sequence number #50 of data packet 50, and indicate the sequence number #91 of data packet 91, the sequence number #92 of data packet 92, ..., the sequence number #100 of data packet 100.
- the fourth indication information can indicate the sequence number range, i.e., sequence number #31 to sequence number #50 and sequence number #91 to sequence number #100.
- data packet dropping can be achieved on the access network device side by exchanging information between the first access network device and the second access network device, thereby improving system capacity.
- FIG. 6 is a schematic diagram of a communication device according to an embodiment of this application.
- This communication device can be used to perform some or all of the functions of the first access network device in the above method embodiments.
- the device can be the first access network device, a device within the first access network device, or a device compatible with the first access network device.
- the communication device can also be a chip system.
- the communication device shown in Figure 6 includes a communication unit 601 and a processing unit 602.
- the communication unit 601 is used for sending and receiving data.
- the communication unit 601 integrates a receiving unit and a sending unit.
- the communication unit 601 can also be called a transceiver unit. Alternatively, the communication unit 601 can be split into a receiving unit and a sending unit.
- the processing unit 602 is used to process the data.
- the communication unit 601 is used to receive first indication information from the second access network device, the first indication information indicating that the second access network device in the decoupled bearer has successfully sent a data packet to the terminal device, the data packet being a data packet in the first data packet group sent by the first access network device in the decoupled bearer to the second access network device;
- the communication unit 601 is further configured to send second indication information to the second access network device based on the first indication information, the second indication information indicating that the second access network device is allowed to discard data packets in the first data packet group.
- the communication unit 601 is further configured to send a third indication message to the second access network device before receiving the first indication message from the second access network device.
- the third indication message indicates that the second access network device needs to send a data packet to the first access network device to indicate successful transmission.
- the General Packet Radio Service Tunneling Protocol User Plane (GTPU) header of the data packet carries a fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for the data packet.
- GTPU General Packet Radio Service Tunneling Protocol User Plane
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; the communication unit 601 is further configured to send a fifth indication message to the second access network device before receiving the first indication message from the second access network device, the fifth indication message indicating that the second access network device needs to send a data packet group to the first access network device to provide feedback on the successful transmission of the data packet.
- the communication unit 601 is further configured to send a sixth indication message to the terminal device, the sixth indication message indicating that the data packets in the first data packet group discarded by the sending end, the sending end including a first access network device and/or a second access network device.
- the processing unit 602 is configured to stop sending data packets from the first data packet group to the second access network device based on the received first indication information.
- FIG. 6 is a schematic diagram of a communication device according to an embodiment of this application.
- This communication device can be used to perform some or all of the functions of the second access network device in the above method embodiments.
- the device can be the second access network device, a device within the second access network device, or a device compatible with the second access network device.
- the communication device can also be a chip system.
- the communication device shown in Figure 6 includes a communication unit 601 and a processing unit 602.
- the communication unit 601 is used for sending and receiving data.
- the communication unit 601 integrates a receiving unit and a sending unit.
- the communication unit 601 can also be called a transceiver unit. Alternatively, the communication unit 601 can be split into a receiving unit and a sending unit.
- the processing unit 602 is used to process the data.
- the communication unit 601 is used to send a first indication information to the first access network device, the first indication information indicating that the second access network device in the separate bearer has successfully sent a data packet to the terminal device, the data packet being a data packet in the first data packet group sent by the first access network device in the separate bearer to the second access network device;
- the communication unit 601 is further configured to receive second indication information from the first access network device, the second indication information indicating that the second access network device is permitted to discard data packets in the first data packet group;
- Processing unit 602 is used to discard data packets in the first data packet group based on the second indication information.
- the communication unit 601 is further configured to receive third indication information from the first access network device before sending the first indication information to the first access network device, the third indication information indicating that the second access network device needs to send a data packet of successful transmission feedback to the first access network device.
- the GTPU header of the data packet general packet radio service tunneling protocol user plane carries fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for the data packet.
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; the communication unit 601 is further configured to receive a fifth indication information from the first access network device before sending the first indication information to the first access network device, the fifth indication information indicating that the second access network device needs to send the data packet group to the first access network device to provide feedback on the successful transmission of the data packet.
- FIG. 6 is a schematic diagram of a communication device according to an embodiment of this application.
- This communication device can be used to perform some or all of the functions of the first access network device in the above method embodiments.
- the device can be the first access network device, a device within the first access network device, or a device compatible with the first access network device.
- the communication device can also be a chip system.
- the communication device shown in Figure 6 includes a communication unit 601 and a processing unit 602.
- the communication unit 601 is used for sending and receiving data.
- the communication unit 601 integrates a receiving unit and a sending unit.
- the communication unit 601 can also be called a transceiver unit. Alternatively, the communication unit 601 can be split into a receiving unit and a sending unit.
- the processing unit 602 is used to process the data.
- the communication unit 601 is used to send a first indication information to the second access network device.
- the first indication information indicates the data packet discarding conditions for the second access network device to discard data packets in the data packet group.
- the data packets are data packets sent from the first access network device to the second access network device in the separate bearer.
- the packet dropping condition is the number of packets in the packet group that need to be successfully sent, or the packet dropping condition is the proportion of the number of packets in the packet group that need to be successfully sent to the total number of packets in the packet group.
- the communication unit 601 is further configured to receive second indication information from the second access network device, the second indication information indicating that a first data packet group has reached the data packet discarding condition; the processing unit 602 is configured to stop sending data packets in the first data packet group to the second access network device based on the second indication information.
- the communication unit 601 is further configured to receive third indication information from the first access network device, the third indication information indicating that the second access network device discards data packets in the first data packet group; and to send fourth indication information to the terminal device based on the third indication information, the fourth indication information indicating that the sending end discards data packets in the first data packet group, the sending end including the first access network device and/or the second access network device.
- FIG. 6 is a schematic diagram of a communication device according to an embodiment of this application.
- This communication device can be used to perform some or all of the functions of the second access network device in the above method embodiments.
- the device can be the second access network device, a device within the second access network device, or a device compatible with the second access network device.
- the communication device can also be a chip system.
- the communication device shown in Figure 6 includes a communication unit 601 and a processing unit 602.
- the communication unit 601 is used for sending and receiving data.
- the communication unit 601 integrates a receiving unit and a sending unit.
- the communication unit 601 can also be called a transceiver unit. Alternatively, the communication unit 601 can be split into a receiving unit and a sending unit.
- the processing unit 602 is used to process the data.
- Communication unit 601 is used to receive first indication information from first access network device, the first indication information indicating the data packet discarding condition of second access network device to discard data packets in data packet group, the data packets being data packets sent from first access network device to second access network device in separate bearer;
- the processing unit 602 is configured to discard data packets in the first data packet group in response to the first data packet group reaching the data packet discarding condition.
- the packet dropping condition is the number of packets in the packet group that need to be successfully sent, or the packet dropping condition is the proportion of the number of packets in the packet group that need to be successfully sent to the total number of packets in the packet group.
- the communication unit 601 is further configured to send a second indication message to the first access network device, the second indication message indicating a first data packet group that has met the data packet dropping condition.
- the communication unit 601 is further configured to send a third indication message to the first access network device, the third indication message indicating that the second access network device discards data packets in the first data packet group.
- the chip includes a processor and a communication interface, and the processor is configured to cause the chip to perform the following operations:
- the first indication information indicating that the second access network device in the decoupled bearer has successfully sent a data packet to the terminal device, the data packet being a data packet in the first data packet group sent by the first access network device in the decoupled bearer to the second access network device;
- a second indication information is sent to the second access network device, the second indication information indicating that the second access network device is allowed to discard data packets in the first data packet group.
- the chip before receiving the first indication information from the second access network device, may also send a third indication information to the second access network device, which indicates that the second access network device needs to send a data packet to the first access network device to confirm successful transmission.
- the General Packet Radio Service Tunneling Protocol User Plane (GTPU) header of the data packet carries a fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for the data packet.
- GTPU General Packet Radio Service Tunneling Protocol User Plane
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; before the chip receives the first indication information from the second access network device, it can also send a fifth indication information to the second access network device, which indicates that the second access network device needs to send a data packet group to the first access network device to provide feedback on the successful transmission of the data packet.
- the chip may also send a sixth indication message to the terminal device, the sixth indication message indicating the data packets in the first data packet group discarded by the sender, the sender including a first access network device and/or a second access network device.
- the chip may also stop sending data packets from the first data packet group to the second access network device based on the received first indication information.
- the chip includes a processor and a communication interface, and the processor is configured to cause the chip to perform the following operations:
- Data packets in the first data packet group are discarded based on the second instruction information.
- the chip before sending the first indication information to the first access network device, may also receive a third indication information from the first access network device, which indicates that the second access network device needs to send a data packet to the first access network device to confirm successful transmission.
- the GTPU header of the data packet general packet radio service tunneling protocol user plane carries fourth indication information, which indicates whether the second access network device needs to send a successful transmission feedback to the first access network device for the data packet.
- the GTPU header of the data packet carries the sequence number of the data packet group to which the data packet belongs; before the chip sends the first indication information to the first access network device, it can also receive a fifth indication information from the first access network device, which indicates that the second access network device needs to send the data packet group to the first access network device to provide feedback on the successful transmission of the data packet.
- the chip includes a processor and a communication interface, and the processor is configured to cause the chip to perform the following operations:
- the first indication message indicating the data packet discarding conditions of the data packet in the data packet group to be discarded by the second access network device, the data packet being the data packet sent from the first access network device to the second access network device in the separate bearer.
- the packet dropping condition is the number of packets in the packet group that need to be successfully sent, or the packet dropping condition is the proportion of the number of packets in the packet group that need to be successfully sent to the total number of packets in the packet group.
- the chip may also receive second indication information from a second access network device, the second indication information indicating that a first data packet group has met the data packet dropping condition; and based on the second indication information, stop sending data packets in the first data packet group to the second access network device.
- the chip may also receive third indication information from a first access network device, the third indication information indicating that a second access network device discards data packets in a first data packet group; and send fourth indication information to a terminal device based on the third indication information, the fourth indication information indicating that a sending end discards data packets in a first data packet group, the sending end including the first access network device and/or the second access network device.
- the chip includes a processor and a communication interface, and the processor is configured to cause the chip to perform the following operations:
- the first indication information indicating the data packet discarding conditions for a second access network device to discard a data packet in a data packet group, the data packet being a data packet sent from the first access network device to the second access network device in a separate bearer;
- the data packets in the first data packet group are discarded.
- the packet dropping condition is the number of packets in the packet group that need to be successfully sent, or the packet dropping condition is the proportion of the number of packets in the packet group that need to be successfully sent to the total number of packets in the packet group.
- the chip may also send a second indication message to the first access network device, the second indication message indicating a first data packet group that has met the data packet dropping condition.
- the chip may also send a third indication message to the first access network device, which indicates that the second access network device has dropped data packets in the first data packet group.
- the communication device 700 may include a memory 701 and a processor 702. Optionally, it may also include a communication interface 703.
- the memory 701, processor 702, and communication interface 703 are connected via one or more communication buses.
- the communication interface 703 is controlled by the processor 702 for sending and receiving information.
- Memory 701 may include read-only memory and random access memory, and provides instructions and data to processor 702. A portion of memory 701 may also include non-volatile random access memory.
- the communication interface 703 is used to receive or send data.
- Processor 702 can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- the general-purpose processor can be a microprocessor; optionally, processor 702 can also be any conventional processor.
- Memory 701 is used to store program instructions.
- Processor 702 is used to call program instructions stored in memory 701.
- the processor 702 calls the program instructions stored in the memory 701, causing the communication device 700 to execute the method executed by the first access network device or the second access network device in the above method embodiment.
- FIG 8 is a structural schematic diagram of a module device provided in an embodiment of this application.
- This module device 800 can perform the relevant steps of the first access network device or the second access network device in the aforementioned method embodiments.
- the module device 800 includes: a communication module 801, a power supply module 802, a storage module 803, and a chip 804.
- the power module 802 is used to provide power to the module device; the storage module 803 is used to store data and instructions; the communication module 801 is used for internal communication within the module device or for communication between the module device and external devices; and the chip 804 is used to execute the method executed by the first or second device in the above method embodiments.
- This application also provides a computer-readable storage medium storing instructions that, when executed on a processor, enable the implementation of the method flow described in the above method embodiments.
- This application also provides a computer program product, which, when run on a processor, enables the implementation of the method flow described in the above method embodiments.
- modules/units included in the various devices and products described in the above embodiments they can be software modules/units, hardware modules/units, or a combination of both.
- all of their modules/units can be implemented using hardware methods such as circuits, or at least some modules/units can be implemented using software programs that run on the chip's integrated processor, while the remaining (if any) modules/units can be implemented using hardware methods such as circuits.
- all of their modules/units can be implemented using hardware methods such as circuits.
- Different modules/units can be located in the same part (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules/units... It can be implemented using software programs that run on the processor integrated within the chip module.
- the remaining (if any) modules/units can be implemented using hardware methods such as circuits.
- the modules/units they contain can all be implemented using hardware methods such as circuits.
- Different modules/units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal.
- at least some modules/units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules/units can be implemented using hardware methods such as circuits.
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Abstract
本申请公开了一种数据包丢弃方法及通信装置,该方法包括:接收来自第二接入网设备的第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;基于第一指示信息向第二接入网设备发送第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包。基于该方法,可以通过在第一接入网设备和第二接入网设备之间进行信息交互,在接入网设备侧实现数据包丢弃,以提升系统容量。
Description
本申请要求于2024年06月27日提交中国专利局、申请号为202410856088.0、申请名称为“一种数据包丢弃方法及通信装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及通信领域,尤其涉及一种数据包丢弃方法及通信装置。
扩展现实(extended reality,XR)技术将物理环境与虚拟环境融合在一起,能够为用户提供完全身临其境般的虚拟体验环境,有广阔的应用前景。XR技术是指虚拟现实(virtual reality,VR)、增强现实(augmented reality,AR)与混合现实(mixed reality,MR)技术等多种合称。基于XR技术传输的业务可以称为XR业务,XR业务的数据通常为高清实时的视频数据,具有数据量大、传输时延要求很高等特点,对于网络传输的能力要求较高。
XR业务的数据,可以分为突发数据(data burst)和数据包单元组(packet data unit set,PDU set)。其中一个突发数据可以包含一个或多个PDU set。一个PDU set包括一个或多个PDU。对于一个PDU set,在发送端生成的N个PDU,只需要发送成功其中的任意K个PDU(K小于N),接收端就可以解码出来该PDU set。为了提高系统容量,接入网设备在向终端设备成功发送PDU set中的K个PDU后,可以丢弃该PDU set中剩余的PDU,这样可以提升系统容量。在分离承载的场景下,如何实现数据包(如PDU)丢弃,以提升系统容量是目前亟待解决的技术问题。
本申请提供一种数据包丢弃方法及通信装置,能够在分离承载的场景下,在接入网设备侧实现数据包丢弃,以提升系统容量。
第一方面,本申请提供一种数据包丢弃方法,该方法包括:
接收来自第二接入网设备的第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;
基于第一指示信息向第二接入网设备发送第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包。
基于第一方面所描述的方法,可以通过在第一接入网设备和第二接入网设备之间进行信息交互,在接入网设备侧实现数据包丢弃,以提升系统容量。
在一种可能的实施例中,第一指示信息可通过指示第二接入网设备向终端设备发送成功的数据包的序号或序号范围,来指示第二接入网设备向终端设备发送成功的数据包。
在一种可能的实施例中,在接收来自第二接入网设备的第一指示信息之前,还可向第二接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
基于该可能的实施例进行数据包发送成功反馈指示,能够精细地进行数据包发送成功反馈指示,且有利于节省指示开销。
可选的,第三指示信息可通过指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包的序号或序号范围,来指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
在一种可能的实施例中,数据包的通用分组无线业务隧道协议用户平面GTPU头中携带第四指示信息,该第四指示信息指示第二接入网设备对数据包是否需要向第一接入网设备进行发送成功反馈。
基于该可能的实施例进行数据包发送成功反馈指示,能够精细地进行数据包发送成功反馈指示。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组的序号;在接收来自第二接入网设备的第一指示信息之前,还可向第二接入网设备发送第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
基于该可能的实施例进行数据包发送成功反馈指示,有利于节省指示开销。
可选的,第五指示信息可通过指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组的序号,来指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
在一种可能的实施例中,第二指示信息可通过指示以下信息中的任意一种,来指示允许第二接入网设备丢弃的第一数据包组中的数据包:允许第二接入网设备丢弃的第一数据包组中的数据包的序号、允许第二接入网设备丢弃的第一数据包组中的数据包的序号范围、允许第二接入网设备丢弃的第一数据包组中的数据包的序号最大值。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组(即第一数据包组)的序号。第二指示信息可通过指示第一数据包组的序号,来指示允许第二接入网设备丢弃的第一数据包组中的数据包。
在一种可能的实施例中,还可向终端设备发送第六指示信息,该第六指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。
基于该可能的实施例,终端设备可以知道接入网设备侧丢弃数据包的情况,从而避免对终端设备的数据包接收造成影响。
可选的,第六指示信息可通过指示发送端丢弃的第一数据包组中的数据包的序号或序号范围,来指示发送端丢弃的第一数据包组中的数据包。
在一种可能的实施例中,还可基于接收的第一指示信息,停止向第二接入网设备发送第一数据包组中的数据包。基于该可能的实施例,有利于减少传输开销。
第二方面,本申请提供一种数据包丢弃方法,该方法包括:
向第一接入网设备发送第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;
接收来自第一接入网设备的第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包;
基于第二指示信息丢弃第一数据包组中的数据包。
在一种可能的实施例中,第一指示信息可通过指示第二接入网设备向终端设备发送成功的数据包的序号或序号范围,来指示第二接入网设备向终端设备发送成功的数据包。
在一种可能的实施例中,还可在向第一接入网设备发送第一指示信息之前,接收来自第一接入网设备的第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
可选的,第三指示信息可通过指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包的序号或序号范围,来指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
在一种可能的实施例中,数据包通用分组无线业务隧道协议用户平面的GTPU头中携带第四指示信息,该第四指示信息指示第二接入网设备对数据包是否需要向第一接入网设备进行发送成功反馈。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组的序号;在向第一接入网设备发送第一指示信息之前,还可接收来自第一接入网设备的第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
可选的,第五指示信息可通过指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组的序号,来指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
在一种可能的实施例中,第二指示信息可通过指示以下信息中的任意一种,来指示允许第二接入网设备丢弃的第一数据包组中的数据包:允许第二接入网设备丢弃的第一数据包组中的数据包的序号、允许第二接入网设备丢弃的第一数据包组中的数据包的序号范围、允许第二接入网设备丢弃的第一数据包组中的数据包的序号最大值。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组(即第一数据包组)的序号。第二指示信息可通过指示第一数据包组的序号,来指示允许第二接入网设备丢弃的第一数据包组中的数据包。
第二方面的有益效果可参见第一方面的有益效果,在此不赘述。
第三方面,本申请提供一种数据包丢弃方法,该方法包括:
向第二接入网设备发送第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,该数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包。
基于第三方面所描述的方法,可以通过在第一接入网设备和第二接入网设备之间进行信息交互,在接入网设备侧实现数据包丢弃,以提升系统容量。
在一种可能的实施例中,数据包丢弃条件为数据包组中需要成功发送的数据包数量,或数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
基于该可能的实施例,有利于第二接入网设备准确地确定是否可以丢弃数据包组中的数据包。
在一种可能的实施例中,还可接收来自第二接入网设备的第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组;基于第二指示信息,停止向第二接入网设备发送第一数据包组中的数据包。
基于该可能的实施例,有利于减少传输开销。
可选的,第二指示信息可通过指示已达到数据包丢弃条件的第一数据包组的序号,来指示已达到数据包丢弃条件的第一数据包组。
在一种可能的实施例中,还可接收来自第一接入网设备的第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包;基于第三指示信息向终端设备发送第四指示信息,该第四指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。
可选的,第三指示信息可通过指示第二接入网设备丢弃的第一数据包组中的数据包的序号或序号范围,来指示第二接入网设备丢弃的第一数据包组中的数据包。第四指示信息可通过指示发送端丢弃的第一数据包组中的数据包的序号或序号范围,来指示发送端丢弃的第一数据包组中的数据包。
第四方面,本申请提供一种数据包丢弃方法,该方法包括:
接收来自第一接入网设备的第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包;
响应于第一数据包组达到数据包丢弃条件,丢弃第一数据包组中的数据包。
在一种可能的实施例中,数据包丢弃条件为数据包组中需要成功发送的数据包数量,或数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
在一种可能的实施例中,还可向第一接入网设备发送第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组。
可选的,第二指示信息可通过指示已达到数据包丢弃条件的第一数据包组的序号,来指示已达到数据包丢弃条件的第一数据包组。
在一种可能的实施例中,还可向第一接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包。
可选的,第三指示信息可通过指示第二接入网设备丢弃的第一数据包组中的数据包的序号或序号范围,来指示第二接入网设备丢弃的第一数据包组中的数据包。
第四方面的有益效果可参见第三方面的有益效果,在此不赘述。
第五方面,本申请提供了一种通信装置,该装置包括用于执行上述第一方面或第二方面或第三方面或第四方面的方法的单元。
第六方面,本申请提供了一种芯片,该芯片包括处理器和通信接口,处理器被配置用于使芯片执行上述第一方面或第二方面或第三方面或第四方面的方法。
第七方面,本申请提供了一种模组设备,该模组设备包括通信模组、电源模组、存储模组以及芯片,其中:该电源模组用于为该模组设备提供电能;该存储模组用于存储数据和指令;该通信模组用于进行模组设备内部通信,或者用于该模组设备与外部设备进行通信;该芯片用于执行上述第一方面或第二方面或第三方面或第四方面的方法。
第八方面,本发明实施例公开了一种通信设备,该通信设备包括存储器和处理器,该存储器用于存储计算机程序,该计算机程序包括程序指令,该处理器被配置用于调用该程序指令,执行上述第一方面或第二方面或第三方面或第四方面的方法。
第九方面,本申请提供了一种计算机可读存储介质,该计算机存储介质中存储有计算机可读指令,当该计算机可读指令在通信装置上运行时,使得该通信装置执行上述第一方面或第二方面或第三方面或第四方面的方法。
第十方面,本申请提供一种计算机程序或计算机程序产品,包括代码或指令,当代码或指令在计算机上运行时,使得计算机执行如上述第一方面或第二方面或第三方面或第四方面的方法。
第十一方面,本申请提供一种通信系统,包括第一接入网设备和第二接入网设备,第一接入网设备用于执行第一方面所描述的方法,第二接入网设备用于执行第二方面所描述的方法。
第十二方面,本申请提供一种通信系统,包括第一接入网设备和第二接入网设备,第一接入网设备用于执行第三方面所描述的方法,第二接入网设备用于执行第四方面所描述的方法。
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种通信系统的示意图;
图2为本申请实施例提供的一种通信系统的示意图;
图3为本申请实施例提供的一种通信系统的示意图;
图4是本申请实施例提供的一种数据包丢弃方法的流程图;
图5是本申请实施例提供的一种数据包丢弃方法的流程图;
图6是本申请实施例提供的一种通信装置的结构示意图;
图7是本申请实施例提供的一种通信设备的结构示意图;
图8是本申请实施例提供的一种模组设备的结构示意图。
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、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本申请以下实施例中所使用的术语只是为了描述特定实施例的目的,而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样,单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括复数表达形式,除非其上下文中明确地有相反指示。
本申请实施例中的“和/或”,描述关联对象的关联关系,表示可以存在三种关系。例如,A和/或B,可以表示如下三种情况:单独存在A;同时存在A和B;单独存在B。其中,A、B可以是单数或者复数。
本申请实施例中,符号“/”可以表示前后关联对象是一种“或”的关系。另外,符号“/”也可以表示除号,即执行除法运算。例如,A/B,可以表示A除以B。
本申请实施例中的“至少一项(个)”或其类似表达,是指这些项中的任意组合,包括单项(个)或复数项(个)的任意组合,是指一个或多个,多个指的是两个或两个以上。例如,a、b或c中的至少一项(个),可以表示如下七种情况:a,b,c,a和b,a和c,b和c,a、b和c。其中,a、b、c中的每一个可以是元素,也可以是包含一个或多个元素的集合。
本申请实施例中的“等于”可以与大于连用,适用于大于时所采用的技术方案,也可以与小于连用,适用于与小于时所采用的技术方案。当等于与大于连用时,不与小于连用;当等于与小于连用时,不与大于连用。
需要说明的是,本申请的说明书和权利要求书中及上述附图中的属于“第一”、“第二”、“第三”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例能够以除了在这里图示或描述以外的顺序实施。此外,术语“包括”及其任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或服务器不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
为便于理解本申请实施例,下面对本申请涉及的系统架构进行阐述。
本申请可应用于第五代(5th generation,5G)系统,也可以称为新空口(new radio,NR)系统;或者可应用于第六代(6th generation,6G)系统,或者第七代(7th generation,7G)系统,或未来的其他通信系统;或者还可用于设备到设备(device to device,D2D)系统,机器到机器(machine to machine,M2M)系统、车联网(vehicle to everything,V2X)等等。
本申请可应用于图1所示的系统架构中。图1所示的通信系统可包括但不限于:第一接入网设备、第二接入网设备和终端设备。图1中设备的数量和形态用于举例,并不构成对本申请实施例的限定,例如实际应用中可以包括多个终端设备。
其中,终端设备分别与第一接入网设备和第二接入网设备相连接,终端设备与第一接入网设备和第二接入网设备之间进行双连接通信。双连接通信是指终端设备可以同时与第一接入网设备和第二接入网设备进行通信。其中,第一接入网设备可以称为主接入网设备或主节点(master node,MN),第二接入网设备可以称为辅接入网设备或辅节点(secondary node,SN)。
在一种可能的实施例中,如图2所示,对于一承载,终端设备、第一接入网设备和第二接入网设备都包括无线链路层控制协议(radio link control,RLC)层、媒体介入控制(media access control,MAC)层和物理层(physical layer,PHY)层。终端设备和第一接入网设备还包括分组数据汇聚协议(packet data convergence protocol,PDCP)层。
在另一种可能的实施例中,如图3所示,对于一承载,终端设备包括PDCP层、RLC层、MAC层和PHY层。第一接入网设备包括PDCP层。第二接入网设备包括RLC层、MAC层和PHY层。
本申请实施例中的双连接通信下的承载可以为分离承载(split bearer)。分离承载的数据在PDCP层进行分离。例如,如图2所示,在同一传输方向上,每个分离承载的PDCP实体关联2个RLC实体,其中一个为第一接入网设备中的主RLC实体(primary RLC entity),另外一个为第二接入网设备中的辅RLC实体(split secondary RLC entity)。分离承载分为两种传输模式,一种传输模式是复制模式,另一种传输模式为分流模式,而同一时刻只能激活一种传输模式。复制模式是指同一份数据在主RLC实体和辅RLC实体进行复制传输;分流模式是指当前数据量较大时,用户数据在主RLC实体和辅RLC实体进行选择分流传输。例如,分离承载的PDCP实体通过比较待发送数据总量与分离阈值(ul-datasplitthreshold)来决定是否进行分流传输,如果待发送数据总量未达到阈值,则只通过主RLC实体传输数据。否则可以在主RLC实体和辅RLC实体同时传输数据,进行数据分流传输,从而提升传输效率。对于分离承载,接收端接收到的数据包可能是乱序的。
同理,在图3所示的分离承载中,分离承载的数据也在PDCP层进行分离,图3所示的分离承载也可以分为复制模式和分流模式。复制模式是指同一份数据在第一接入网设备和第二接入网设备进行复制传输;分流模式是指当前数据量较大时,用户数据在第一接入网设备和第二接入网设备进行选择分流传输。
下面对本申请实施例涉及的终端设备和接入网设备进行介绍:
一、终端设备
终端设备,可以为一种具有收发功能的设备,又可以称之为终端、用户设备(user equipment,UE)、远程终端设备(remote UE)、中继设备(relay UE)、接入终端设备、用户单元、用户站、移动站、移动台、远方站、移动设备、用户终端设备、智能终端设备、无线通信设备、用户代理或用户装置。需要说明的是,中继设备是能够为其他终端设备(包括远程终端设备)提供中继转发服务的终端设备。
例如,终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、混合现实(mixed reality,MR)终端设备、工业控制(industrial control)中的无线终端设备、无人自动驾驶中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或者智慧家庭(smart home)中的无线终端设备等。
又例如,终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统(例如NR通信系统、6G通信系统)中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端设备等,对此不作具体限定。
在一些可能的实现中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;可以部署在水面上(如轮船等);可以部署在空中(如飞机、气球和卫星等)。
在一些可能的实现中,终端设备可以包括无线通信功能的装置,例如芯片系统、芯片、芯片模组。示例的,该芯片系统可以包括芯片,还可以包括其它分立器件。
在一些可能的实现中,本申请实施例所述的终端设备,可以是芯片、芯片模组、装置、单元等,对此不作具体限制。
二、接入网设备
接入网设备,可以为一种具有收发功能的设备,可以用于与终端设备之间进行通信。
在一些可能的实现中,接入网设备可以负责空口侧的无线资源管理(radio resource management,RRM)、服务质量(quality of service,QoS)管理、数据压缩和加密、数据收发等。
在一些可能的实现中,接入网设备可以包括通信系统中的基站(base station,BS)或者部署于无线接入网(radio access network,RAN)用于提供无线通信功能的设备,即接入网设备可以包括RAN中的设备。
例如,RAN中的设备可以包括LTE通信系统中的演进型节点B(evolutional node B,eNB或eNodeB)、NR通信系统中的下一代演进型的节点B(next generation evolved node B,ng-eNB)、NR通信系统中的下一代节点B(next generation node B,gNB)、双连接架构中的主节点(master node,MN)、双连接架构中的第二节点或辅节点(secondary node,SN)等,对此不作具体限制。
在一些可能的实现中,接入网设备可以包括核心网(core network,CN)中的设备。
例如,CN中的设备可以包括访问和移动性管理功能(access and mobility management function,AMF)、用户面功能(user plane function,UPF)、会话管理功能(session management function,SMF)等。
在一些可能的实现中,接入网设备还可以是WLAN中的接入点(access point,AP)、中继站、未来演进的PLMN网络中的通信设备、NTN网络中的通信设备等。
在一些可能的实现中,接入网设备可以包括具有为终端设备提供无线通信功能的装置,例如芯片系统、芯片、芯片模组。示例的,该芯片系统可以包括芯片,或者,可以包括其它分立器件。
在一些可能的实现中,接入网设备可以与互联网协议(Internet Protocol,IP)网络进行通信。例如,因特网(internet)、私有的IP网或者其他数据网等。
在一些可能的实现中,接入网设备可以包括一个独立的节点以实现上述基站的功能,或者可以包括两个或多个独立的节点以实现上述基站的功能。例如,接入网设备包括集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU),如gNB-CU和gNB-DU。进一步的,在本申请的另一些实施例中,接入网设备还可以包括有源天线单元(active antenna unit,AAU)。其中,CU实现接入网设备的一部分功能,DU实现接入网设备的另一部分功能。比如,CU负责处理非实时协议和服务,实现无线资源控制(radio resource control,RRC)层、服务数据适配(service data adaptation protocol,SDAP)层、分组数据汇聚(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,实现无线链路控制(radio link control,RLC)层、媒体接入控制(medium access control,MAC)层和物理(physical,PHY)层的功能。另外,AAU可以实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者由PHY层的信息转变而来,因此,在该网络部署下,高层信令(如RRC信令)可以认为是由CU生成,由DU发送的,或者由DU和AAU共同发送的。可以理解的是,接入网设备可以包括CU、DU、AAU中的至少一个。另外,可以将CU划分为RAN设备,或者,也可以将CU划分为核心网设备,对此不做具体限定。
在一些可能的实现中,接入网设备可以是与终端设备进行相干协作传输(coherent joint transmission,CJT)的多站点中的任一站点,或者是该多站点外的其他站点,或者是其他与终端设备进行网络通信的接入网设备,对此不作具体限制。其中,多站点相干协作传输可以为多个站点联合相干传输,或者属于同一个物理下行共享信道(Physical Downlink Shared Channel,PDSCH)的不同数据从不同的站点发送到终端设备,或者多个站点虚拟成一个站点进行传输,其他标准中规定相同含义的名称也同样适用于本申请,即本申请并不限制这些参数的名称。多站点相干协作传输中的站点可以为射频拉远头(Remote Radio Head,RRH)、传输接收点(transmission and reception point,TRP)、接入网设备等,对此不作具体限定。
在一些可能的实现中,接入网设备可以是与终端设备进行非相干协作传输的多站点中的任一站点,或者是该多站点外的其他站点,或者是其他与终端设备进行网络通信的接入网设备,对此不作具体限制。其中,多站点非相干协作传输可以为多个站点联合非相干传输,或者属于同一个PDSCH的不同数据从不同的站点发送到终端设备,或者属于同一个PDSCH的不同数据从不同的站点发送到终端设备,其他标准中规定相同含义的名称也同样适用于本申请,即本申请并不限制这些参数的名称。多站点非相干协作传输中的站点可以为RRH、TRP、接入网设备等,对此不作具体限定。
在一些可能的实现中,接入网设备可以具有移动特性,例如接入网设备可以为移动的设备。可选地,接入网设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(high elliptical orbit,HEO)卫星等。可选地,接入网设备还可以为设置在陆地、水域等位置的基站。
在一些可能的实现中,接入网设备可以为小区提供服务,而该小区中的终端设备可以通过传输资源(如频谱资源)与接入网设备进行通信。其中,该小区可以为宏小区(macro cell)、小小区(small cell)、城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)和毫微微小区(femto cell)等。
在一些可能的实现中,本申请实施例所述的接入网设备,可以是芯片、芯片模组、装置、单元等,对此不作具体限制。
对于一个数据包组,该数据包组包括N个数据包,接入网设备只需要向终端设备发送成功其中的任意K个数据包(K小于N),终端设备就可以解码出来该数据包组。为了提高系统容量,接入网设备在成功发送数据包组中的K个数据包后,可以丢弃该数据包组中剩余的数据包,这样可以提升系统容量。为了能够在分离承载的场景下,在接入网设备侧实现数据包丢弃,以提升系统容量,本申请实施例提供了一种数据包丢弃方法及通信装置。下面对本申请实施例提供的数据包丢弃方法及通信装置进一步进行说明:
请参阅图4,图4是本申请实施例提供的一种数据包丢弃方法的流程图,该数据包丢弃方法包括步骤401~步骤403。图4所示的方法执行主体可以为第一接入网设备和第二接入网设备,或主体可以为第一接入网设备的中的芯片和第二接入网设备的中的芯片。或者图4所示的方法执行主体还可是其他类型的产品,本领域技术人员可根据说明书公开的内容做进一步拓展。图4所示的方法执行主体以第一接入网设备和第二接入网设备为例。其中:
401、第二接入网设备向第一接入网设备发送第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包。相应地,第一接入网设备可接收该第一指示信息。
本申请实施例中,在分离承载中第一接入网设备可向第二接入网设备发送第一数据包组中的数据包,第二接入网设备接收该数据包之后,可以向终端设备发送该数据包。第一数据包组包括多个数据包。本申请实施例中,分离承载的传输模式可以是复制模式或分流模式,关于复制模式和分流模式的介绍可参见系统架构下的描述,在此不赘述。本申请实施例中的数据包可以为协议数据单元(protocol data unit,PDU)数据包,或其他类型的数据包,本申请实施例不做限定。第一数据包组可以为PDU组(PDU set),或为其他类型的数据包组。
在一种可能的实施例中,第一指示信息可通过指示第二接入网设备向终端设备发送成功的数据包的序号或序号范围,来指示第二接入网设备向终端设备发送成功的数据包。序号范围可以覆盖多个数据包的序号。可选的,数据包的序号可以是数据包的SN(sequence number)或者是数据包的count,该count由sequence number和超帧号(hyper frame number,HFN)组成。
可选的,第二接入网设备可以在多个数据包发送之后,统一向第一接入网设备指示该多个数据包中发送成功的数据包。
例如,第二接入网设备向终端设备发送数据包1~数据包4之后,如果确定数据包1发送成功,数据包2~数据包4发送失败。第二接入网设备可以向第一接入网设备发送第一指示信息,该第一指示信息可以指示数据包1的序号,以指示数据包1发送成功。
第二接入网设备向终端设备发送数据包1~数据包4之后,如果确定数据包1和数据包3均发送成功,数据包2和数据包4发送失败。该第一指示信息可指示数据包1的序号#1和数据包3的序号#3。
第二接入网设备向终端设备发送数据包1~数据包4之后,如果确定数据包1~数据包3均发送成功,数据包4发送失败。该第一指示信息可指示数据包1~数据包3的序号范围,即序号#1~序号#3。
可选的,第二接入网设备可以在某个数据包发送成功之后,就向第一接入网设备发送该数据包的序号,以向第一接入网设备指示该数据包发送成功。
例如,第二接入网设备可以在确定数据包1发送成功之后,就向第一接入网设备发送第一指示信息1,该第一指示信息1指示序号#1,以指示数据包1发送成功。第二接入网设备可以在数据包2发送成功之后,就向第一接入网设备发送第一指示信息2,该第一指示信息2指示序号#2,以指示数据包2发送成功。第二接入网设备可以在数据包3发送成功之后,就向第一接入网设备发送第一指示信息3,该第一指示信息3指示序号#3,以指示数据包3发送成功。
可选的,第二接入网设备可以根据RLC的确认模式(acknowledged mode,AM)或MAC层中混合自动重传请求(hybrid automatic repeat request,HARQ)的成功传输确认机制来确认数据包是否成功发送至终端设备。
在一种可能的实施例中,第一接入网设备还可以对第二接入网设备进行数据包发送成功反馈指示。第一接入网设备对第二接入网设备进行反馈指示的可能的实现方式有以下3种:
方式1:第一接入网设备向第二接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。相应地,该第二接入网设备可接收该第三指示信息。基于该方式1进行数据包发送成功反馈指示,能够精细地进行数据包发送成功反馈指示,且有利于节省指示开销。
也就是说,第一接入网设备可预先指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。例如,假设第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包为数据包1~数据包50。那么第二接入网设备接收该第三指示信息之后,第二接入网设备可向第一接入网设备指示数据包1~数据包50中发送成功的数据包。
可选的,第三指示信息可通过指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包的序号或序号范围,来指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。关于序号和序号范围的描述可参见前文中的介绍,在此不赘述。
例如,假设第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包为数据包组1中的数据包1~数据包50。第三指示信息可以指示数据包1的序号#1、数据包2的序号#2,…,数据包50的序号#50。或者,第三指示信息可以指示序号范围,即序号#1~序号#50。
方式2:数据包的通用分组无线业务隧道协议用户平面(general packet radio service tunneling protocol user plane,GTPU)头中携带第四指示信息,该第四指示信息指示第二接入网设备对该数据包是否需要向第一接入网设备进行发送成功反馈。基于该方式2进行数据包发送成功反馈指示,能够精细地进行数据包发送成功反馈指示。
也就是说,每个数据包的GTPU头可以携带指示信息,以指示第二接入网设备对该数据包是否需要向第一接入网设备进行发送成功反馈。例如,可在数据包的GTPU头中采用1bit来指示该数据包的传输成功是否需要第二接入网设备反馈到第一接入网设备。例如,该1bit的值为1,则指示该数据包的传输成功需要第二接入网设备反馈到第一接入网设备。该1bit的值为0,则指示该数据包的传输成功不需要第二接入网设备反馈到第一接入网设备。
可选的,也可以在数据包的其他头中携带第四指示信息,本申请实施例不做限定。
方式3:数据包的GTPU头中携带该数据包所在的数据包组的序号;第一接入网设备向第二接入网设备发送第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。相应地,第二接入网设备可以接收该第五指示信息。基于该方式3进行数据包发送成功反馈指示,有利于节省指示开销。
在该方式中,数据包的GTPU头中携带该数据包所在的数据包组的序号,以便第二接入网设备能够区分该数据包属于哪个数据包组。第一接入网设备可预先指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组的序号。这样第二接入网设备就可对该数据包组中的数据包进行发送成功反馈。
可选的,也可以在数据包的其他头中携带该数据包所在的数据包组的序号,本申请实施例不做限定。
可选的,第五指示信息可通过指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组的序号,来指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
可选的,数据包的GTPU头中携带该数据包所在的数据包组中的最后一个数据包的指示,以便接入网设备确定第一数据包组何时结束。可选的,也可以在数据包的其他头中携带该数据包所在的数据包组中的最后一个数据包的指示,本申请实施例不做限定。
在另一种可能的实施例中,第一接入网设备也可不对第二接入网设备进行反馈指示。第二接入网设备可默认对任意一个数据包均向第一接入网设备进行发送成功反馈。
402、第一接入网设备基于第一指示信息向第二接入网设备发送第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包。相应地,第二接入网设备可接收该第二指示信息。
本申请实施例中,第一接入网设备可以基于第一指示信息确定第二接入网设备向终端设备成功发送的第一数据包组中的数据包。第一接入网设备可以基于第一接入网设备和/或第二接入网设备向终端设备成功发送的第一数据包组中的数据包,确定终端设备已经成功接收到第一数据包组中的数据包的数量或占总数据包的比例。第一接入网设备基于终端设备已经成功接收到第一数据包组中的数据包的数量或占总数据包的比例,确定是否允许第二接入网设备丢弃的第一数据包组中的数据包。如果确定允许第二接入网设备丢弃的第一数据包组中的数据包,则向第二接入网设备发送第二指示信息,以指示允许第二接入网设备丢弃的第一数据包组中的数据包。举例来说,假设第一数据包组包括100个数据包。终端设备接收到第一数据包组中的60个数据包就能成功解码出第一数据包组。
第一接入网设备向第二接入网设备发送第一数据包组中的数据包。第一接入网设备和第二接入网设备均向终端设备发送第一数据包组中的数据包。假设第一接入网设备已经向第二接入网设备发送了数据包1~数据包40。第二接入网设备向第一接入网设备发送第一指示信息,指示数据包1~数据包30传输成功。第一接入网设备自身向终端设备成功发送第一数据包组中的数据包51~数据包90。第一接入网设备基于第一接入网设备以及第二接入网设备自身向终端设备成功发送的第一数据包组中的数据包,确定终端设备已经成功接收到第一数据包组中的70个数据包。由于终端设备基于收到的数据包已经能够成功解码出第一数据包组。因此,第一接入网设备可以向第二接入网设备发送第二指示信息,以指示第二接入网设备将数据包31~数据包40丢弃。第二接入网设备接收该第二指示信息之后,丢弃数据包31~数据包40。第一接入网设备也可丢弃数据包41~数据包50,以及丢弃数据包91~数据包100。
在一种可能的实施例中,第二指示信息可通过指示以下信息中的任意一种,来指示允许第二接入网设备丢弃的第一数据包组中的数据包:允许第二接入网设备丢弃的第一数据包组中的数据包的序号、允许第二接入网设备丢弃的第一数据包组中的数据包的序号范围、允许第二接入网设备丢弃的第一数据包组中的数据包的序号最大值。
例如,假设允许第二接入网设备将数据包31~数据包40丢弃。第二指示信息可以指示数据包31的序号#31、数据包32的序号#32,…,数据包40的序号#40。或者,第二指示信息可以指示序号范围,即序号#31~序号#40。或者,第二指示信息可以指示需要丢弃的第一数据包组中的数据包的序号最大值,即序号#40。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组(即第一数据包组)的序号。第二指示信息可通过指示第一数据包组的序号,来指示允许第二接入网设备丢弃的第一数据包组中的数据包。第二接入网设备接收该第二指示信息之后,可以将第一数据包组中的所有未成功发送的数据包丢弃。
在一种可能的实施例中,第一接入网设备还可向终端设备发送第六指示信息,该第六指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。基于该可能的实施例,终端设备可以知道接入网设备侧丢弃数据包的情况,从而避免对终端设备的数据包接收造成影响。
例如,如上文中的示例,第二接入网设备丢弃第一数据包组中的数据包31~数据包40。第一接入网设备丢弃第一数据包组中的数据包41~数据包50以及数据包91~数据包100。因此,第六指示信息可以指示发送端丢弃的第一数据包组中的数据包为数据包31~数据包50以及数据包91~数据包100。
可选的,第六指示信息可通过指示发送端丢弃的第一数据包组中的数据包的序号或序号范围,来指示发送端丢弃的第一数据包组中的数据包。例如,第六指示信息可以指示数据包31的序号#31、数据包32的序号#32,…,数据包50的序号#50,以及指示数据包91的序号#91、数据包92的序号#92,…,数据包100的序号#100。或者,第二指示信息可以指示序号范围,即序号#31~序号#50以及序号#91~序号#100。
在一种可能的实施例中,第一接入网设备还可基于接收的第一指示信息,停止向第二接入网设备发送第一数据包组中的数据包。基于该可能的实施例,有利于减少传输开销。例如,如上文中的示例,第一接入网设备确定终端设备已经成功接收到第一数据包组中的70个数据包。由于终端设备基于收到的数据包已经能够成功解码出第一数据包组,第二接入网设备已无需继续向终端设备发送第一数据包组中的数据包,因此第一接入网设备无需继续向第二接入网设备发送第一数据包组中的数据包。
403、第二接入网设备基于第二指示信息丢弃第一数据包组中的数据包。
可见,基于图4所描述的方法,可以通过在第一接入网设备和第二接入网设备之间进行信息交互,在接入网设备侧实现数据包丢弃,以提升系统容量。
请参阅图5,图5是本申请实施例提供的一种数据包丢弃方法的流程图,该数据包丢弃方法包括步骤501~步骤502。图5所示的方法执行主体可以为第一接入网设备和第二接入网设备,或主体可以为第一接入网设备的中的芯片和第二接入网设备的中的芯片。或者图5所示的方法执行主体还可是其他类型的产品,本领域技术人员可根据说明书公开的内容做进一步拓展。图5所示的方法执行主体以第一接入网设备和第二接入网设备为例。其中:
501、第一接入网设备向第二接入网设备发送第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,该数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包。相应地,第二接入网设备可接收来自第一接入网设备的该第一指示信息。
本申请实施例中,数据包组包括多个数据包。分离承载中第一接入网设备可向第二接入网设备发送数据包,第二接入网设备接收该数据包之后,可以向终端设备发送该数据包。本申请实施例中,分离承载的传输模式可以是复制模式或分流模式,关于复制模式和分流模式的介绍可参见系统架构下的描述,在此不赘述。本申请实施例中的数据包可以为PDU数据包,或其他类型的数据包,本申请实施例不做限定。数据包组可以为PDU组,或为其他类型的数据包组。
在一种可能的实施例中,第一指示信息可针对特定的数据包组指示数据包丢弃条件。例如,第一指示信息还可指示数据包丢弃条件对应的数据包组,以便第二接入网设备确定该数据包丢弃条件适用的数据包组。
在另一种可能的实施例中,第一指示信息指示的数据包丢弃条件可以适用于所有的数据包组。
在一种可能的实施例中,第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件可以为:数据包组中需要成功发送的数据包数量,或数据包组中需要成功发送的数据包数量在数据包组中的比例。基于该可能的实施例,有利于第二接入网设备准确地确定是否可以丢弃数据包组中的数据包。
例如,假设第二接入网设备丢弃数据包组1中的数据包的数据包丢弃条件为数据包组1中需要成功发送的数据包数量为30个。第一接入网设备向第二接入网设备发送了数据包组1中的数据包1~数据包40。第二接入网设备向终端设备成功发送数据包1~数据包30时,第二接入网设备确定该数据包组满足丢弃数据包的数据包丢弃条件,第二接入网设备丢弃该数据包组剩余未发送的数据包,即丢弃数据包31~数据包40。
再如,假设第二接入网设备丢弃数据包组1中的数据包的数据包丢弃条件为数据包组1中需要成功发送的数据包数量在数据包组1中的比例为30%。第一接入网设备向第二接入网设备发送了数据包组1中的数据包1~数据包40。数据包组1总共包括100个数据包。第二接入网设备向终端设备成功发送数据包1~数据包30时,第二接入网设备确定该数据包组满足丢弃数据包的数据包丢弃条件,第二接入网设备丢弃该数据包组剩余未发送的数据包,即丢弃数据包31~数据包40。
502、第二接入网设备响应于第一数据包组达到数据包丢弃条件,丢弃该第一数据包组中的数据包。
在一种可能的实施例中,第二接入网设备还可向第一接入网设备发送第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组。相应地,第一接入网设备还可接收来自第二接入网设备的该第二指示信息。第一接入网设备可基于该第二指示信息,停止向第二接入网设备发送第一数据包组中的数据包。基于该可能的实施例,有利于减少传输开销。
可选的,第二指示信息可通过指示已达到数据包丢弃条件的第一数据包组的序号,来指示已达到数据包丢弃条件的第一数据包组。
在一种可能的实施例中,第二接入网设备还可向第一接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包。相应地,第一接入网设备可接收来自第一接入网设备的该第三指示信息。第一接入网设备可基于该第三指示信息向终端设备发送第四指示信息,该第四指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。基于该可能的实施例,终端设备可以知道接入网设备侧丢弃数据包的情况,从而避免对终端设备的数据包接收造成影响。
例如,第二接入网设备丢弃第一数据包组中的数据包31~数据包40。因此,第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包为数据包31~数据包40。第一接入网设备丢弃第一数据包组中的数据包41~数据包50以及数据包91~数据包100。因此,第四指示信息可以指示发送端丢弃的第一数据包组中的数据包为数据包31~数据包50以及数据包91~数据包100。
可选的,第三指示信息可通过指示第二接入网设备丢弃的第一数据包组中的数据包的序号或序号范围,来指示第二接入网设备丢弃的第一数据包组中的数据包。例如,第三指示信息可以指示数据包31的序号#31、数据包32的序号#32,…,数据包40的序号#40。第四指示信息可通过指示发送端丢弃的第一数据包组中的数据包的序号或序号范围,来指示发送端丢弃的第一数据包组中的数据包。例如,第四指示信息可以指示数据包31的序号#31、数据包32的序号#32,…,数据包50的序号#50,以及指示数据包91的序号#91、数据包92的序号#92,…,数据包100的序号#100。或者,第四指示信息可以指示序号范围,即序号#31~序号#50以及序号#91~序号#100。
可见,基于图5所描述的方法,可以通过在第一接入网设备和第二接入网设备之间进行信息交互,在接入网设备侧实现数据包丢弃,以提升系统容量。
请参见图6,图6是本申请实施例的一种通信装置的结构示意图。该通信装置可以用于执行上述方法实施例中第一接入网设备的部分或全部功能。该装置可以是第一接入网设备,也可以是第一接入网设备中的装置,或者是能够和第一接入网设备匹配使用的装置。其中,该通信装置还可以为芯片系统。图6所示的通信装置包括通信单元601和处理单元602。该通信单元601用于收发数据。通信单元601集成有接收单元和发送单元。通信单元601也可以称为收发单元。或者,也可将通信单元601拆分为接收单元和发送单元。处理单元602用于对数据进行处理。其中:
通信单元601,用于接收来自第二接入网设备的第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;
通信单元601,还用于基于第一指示信息向第二接入网设备发送第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包。
在一种可能的实施例中,通信单元601,还用于在接收来自第二接入网设备的第一指示信息之前,向第二接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
在一种可能的实施例中,数据包的通用分组无线业务隧道协议用户平面GTPU头中携带第四指示信息,该第四指示信息指示第二接入网设备对数据包是否需要向第一接入网设备进行发送成功反馈。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组的序号;通信单元601,还用于在接收来自第二接入网设备的第一指示信息之前,向第二接入网设备发送第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
在一种可能的实施例中,通信单元601,还用于向终端设备发送第六指示信息,该第六指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。
在一种可能的实施例中,处理单元602,用于基于接收的第一指示信息,停止向第二接入网设备发送第一数据包组中的数据包。
请参见图6,图6是本申请实施例的一种通信装置的结构示意图。该通信装置可以用于执行上述方法实施例中第二接入网设备的部分或全部功能。该装置可以是第二接入网设备,也可以是第二接入网设备中的装置,或者是能够和第二接入网设备匹配使用的装置。其中,该通信装置还可以为芯片系统。图6所示的通信装置包括通信单元601和处理单元602。该通信单元601用于收发数据。通信单元601集成有接收单元和发送单元。通信单元601也可以称为收发单元。或者,也可将通信单元601拆分为接收单元和发送单元。处理单元602用于对数据进行处理。其中:
通信单元601,用于向第一接入网设备发送第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;
通信单元601,还用于接收来自第一接入网设备的第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包;
处理单元602,用于基于第二指示信息丢弃第一数据包组中的数据包。
在一种可能的实施例中,通信单元601,还用于在向第一接入网设备发送第一指示信息之前,接收来自第一接入网设备的第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
在一种可能的实施例中,数据包通用分组无线业务隧道协议用户平面的GTPU头中携带第四指示信息,该第四指示信息指示第二接入网设备对数据包是否需要向第一接入网设备进行发送成功反馈。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组的序号;通信单元601,还用于在向第一接入网设备发送第一指示信息之前,接收来自第一接入网设备的第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
请参见图6,图6是本申请实施例的一种通信装置的结构示意图。该通信装置可以用于执行上述方法实施例中第一接入网设备的部分或全部功能。该装置可以是第一接入网设备,也可以是第一接入网设备中的装置,或者是能够和第一接入网设备匹配使用的装置。其中,该通信装置还可以为芯片系统。图6所示的通信装置包括通信单元601和处理单元602。该通信单元601用于收发数据。通信单元601集成有接收单元和发送单元。通信单元601也可以称为收发单元。或者,也可将通信单元601拆分为接收单元和发送单元。处理单元602用于对数据进行处理。其中:
通信单元601,用于向第二接入网设备发送第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,该数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包。
在一种可能的实施例中,数据包丢弃条件为数据包组中需要成功发送的数据包数量,或数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
在一种可能的实施例中,通信单元601,还用于接收来自第二接入网设备的第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组;处理单元602,用于基于第二指示信息,停止向第二接入网设备发送第一数据包组中的数据包。
在一种可能的实施例中,通信单元601,还用于接收来自第一接入网设备的第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包;以及基于第三指示信息向终端设备发送第四指示信息,该第四指示信息指示发送端丢弃的第一数据包组中的数据包,发送端包括第一接入网设备和/或第二接入网设备。
请参见图6,图6是本申请实施例的一种通信装置的结构示意图。该通信装置可以用于执行上述方法实施例中第二接入网设备的部分或全部功能。该装置可以是第二接入网设备,也可以是第二接入网设备中的装置,或者是能够和第二接入网设备匹配使用的装置。其中,该通信装置还可以为芯片系统。图6所示的通信装置包括通信单元601和处理单元602。该通信单元601用于收发数据。通信单元601集成有接收单元和发送单元。通信单元601也可以称为收发单元。或者,也可将通信单元601拆分为接收单元和发送单元。处理单元602用于对数据进行处理。其中:
通信单元601,用于接收来自第一接入网设备的第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,该数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包;
处理单元602,用于响应于第一数据包组达到数据包丢弃条件,丢弃第一数据包组中的数据包。
在一种可能的实施例中,数据包丢弃条件为数据包组中需要成功发送的数据包数量,或数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
在一种可能的实施例中,通信单元601,还用于向第一接入网设备发送第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组。
在一种可能的实施例中,通信单元601,还用于向第一接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包。
本申请实施例还提供了一种芯片,该芯片可以执行前述方法实施例中第一接入网设备的相关步骤。该芯片,包括处理器和通信接口,该处理器被配置用于使芯片执行如下操作:
接收来自第二接入网设备的第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;
基于第一指示信息向第二接入网设备发送第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包。
在一种可能的实施例中,芯片接收来自第二接入网设备的第一指示信息之前,还可向第二接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
在一种可能的实施例中,数据包的通用分组无线业务隧道协议用户平面GTPU头中携带第四指示信息,该第四指示信息指示第二接入网设备对数据包是否需要向第一接入网设备进行发送成功反馈。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组的序号;芯片接收来自第二接入网设备的第一指示信息之前,还可向第二接入网设备发送第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
在一种可能的实施例中,芯片还可向终端设备发送第六指示信息,该第六指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。
在一种可能的实施例中,芯片还可基于接收的第一指示信息,停止向第二接入网设备发送第一数据包组中的数据包。
本申请实施例还提供了一种芯片,该芯片可以执行前述方法实施例中第二接入网设备的相关步骤。该芯片,包括处理器和通信接口,该处理器被配置用于使芯片执行如下操作:
向第一接入网设备发送第一指示信息,该第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,该数据包为分离承载中第一接入网设备发送至第二接入网设备的第一数据包组中的数据包;
接收来自第一接入网设备的第二指示信息,该第二指示信息指示允许第二接入网设备丢弃的第一数据包组中的数据包;
基于第二指示信息丢弃第一数据包组中的数据包。
在一种可能的实施例中,芯片向第一接入网设备发送第一指示信息之前,还可接收来自第一接入网设备的第三指示信息,该第三指示信息指示第二接入网设备需要向第一接入网设备进行发送成功反馈的数据包。
在一种可能的实施例中,数据包通用分组无线业务隧道协议用户平面的GTPU头中携带第四指示信息,该第四指示信息指示第二接入网设备对数据包是否需要向第一接入网设备进行发送成功反馈。
在一种可能的实施例中,数据包的GTPU头中携带数据包所在的数据包组的序号;芯片向第一接入网设备发送第一指示信息之前,还可接收来自第一接入网设备的第五指示信息,该第五指示信息指示第二接入网设备需要向第一接入网设备进行数据包发送成功反馈的数据包组。
本申请实施例还提供了一种芯片,该芯片可以执行前述方法实施例中第一接入网设备的相关步骤。该芯片,包括处理器和通信接口,该处理器被配置用于使芯片执行如下操作:
向第二接入网设备发送第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,该数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包。
在一种可能的实施例中,数据包丢弃条件为数据包组中需要成功发送的数据包数量,或数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
在一种可能的实施例中,芯片还可接收来自第二接入网设备的第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组;以及基于第二指示信息,停止向第二接入网设备发送第一数据包组中的数据包。
在一种可能的实施例中,芯片还可接收来自第一接入网设备的第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包;以及基于第三指示信息向终端设备发送第四指示信息,该第四指示信息指示发送端丢弃的第一数据包组中的数据包,该发送端包括第一接入网设备和/或第二接入网设备。
本申请实施例还提供了一种芯片,该芯片可以执行前述方法实施例中第二接入网设备的相关步骤。该芯片,包括处理器和通信接口,该处理器被配置用于使芯片执行如下操作:
接收来自第一接入网设备的第一指示信息,该第一指示信息指示第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,该数据包为分离承载中第一接入网设备发送至第二接入网设备的数据包;
响应于第一数据包组达到数据包丢弃条件,丢弃第一数据包组中的数据包。
在一种可能的实施例中,数据包丢弃条件为数据包组中需要成功发送的数据包数量,或数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
在一种可能的实施例中,芯片还可向第一接入网设备发送第二指示信息,该第二指示信息指示已达到数据包丢弃条件的第一数据包组。
在一种可能的实施例中,芯片还可向第一接入网设备发送第三指示信息,该第三指示信息指示第二接入网设备丢弃的第一数据包组中的数据包。
请参阅图7,图7是本发明实施例提供的一种通信设备的结构示意图。该通信设备700可以包括存储器701、处理器702。可选的,还包括通信接口703。存储器701、处理器702和通信接口703通过一条或多条通信总线连接。其中,通信接口703受处理器702的控制用于收发信息。
存储器701可以包括只读存储器和随机存取存储器,并向处理器702提供指令和数据。存储器701的一部分还可以包括非易失性随机存取存储器。
通信接口703用于接收或发送数据。
处理器702可以是中央处理单元(Central Processing Unit,CPU),该处理器702还可以是其他通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field-Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器,可选的,该处理器702也可以是任何常规的处理器等。其中:
存储器701,用于存储程序指令。
处理器702,用于调用存储器701中存储的程序指令。
处理器702调用存储器701中存储的程序指令,使该通信设备700执行上述方法实施例中第一接入网设备或第二接入网设备所执行的方法。
如图8所示,图8是本申请实施例提供的一种模组设备的结构示意图。该模组设备800可以执行前述方法实施例中第一接入网设备或第二接入网设的相关步骤。该模组设备800包括:通信模组801、电源模组802、存储模组803以及芯片804。
其中,电源模组802用于为模组设备提供电能;存储模组803用于存储数据和指令;通信模组801用于进行模组设备内部通信,或者用于模组设备与外部设备进行通信;芯片804用于执行上述方法实施例中第一装置或第二装置所执行的方法。
需要说明的是,图7和图8对应的实施例中未提及的内容以及各个步骤的具体实现方式可参见方法实施例的内容,这里不再赘述。
本申请实施例还提供一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在处理器上运行时,上述方法实施例的方法流程得以实现。
本申请实施例还提供一种计算机程序产品,当所述计算机程序产品在处理器上运行时,上述方法实施例的方法流程得以实现。
关于上述实施例中描述的各个装置、产品包含的各个模块/单元,其可以是软件模块/单元,也可以是硬件模块/单元,或者也可以部分是软件模块/单元,部分是硬件模块/单元。例如,对于应用于或集成于芯片的各个装置、产品其包含的各个模块/单元可以都采用电路等硬件的方式实现,或者,至少部分模块/单元可以采用软件程序的方式实现,该软件程序运行于芯片内部集成处理器,剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现;对于应用于或集成于芯片模组的各个装置、产品,其包含的各个模块/单元可以都采用电路等硬件的方式实现,不同模块/单元可以位于芯片模组的同一件(例如芯片、电路模块等)或者不同组件中,或者,至少部分模块/单元可以采用软件程序的方式实现,该软件程序运行于芯片模组内部集成的处理器,剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现;对于应用于或集成于终端的各个装置、产品,其包含的模块/单元可以都采用电路等硬件的方式实现,不同的模块/单元可以位于终端内同一组件(例如,芯片、电路模块等)或者不同组件中,或者,至少部分模块/单元可以采用软件程序的方式实现,该软件程序运行于终端内部集成的处理器,剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本申请并不受所描述的动作顺序的限制,因为依据本申请,某些操作可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本申请所必须的。
本申请提供的各实施例的描述可以相互参照,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。为描述的方便和简洁,例如关于本申请实施例提供的各装置、设备的功能以及执行的操作可以参照本申请方法实施例的相关描述,各方法实施例之间、各装置实施例之间也可以互相参考、结合或引用。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。
Claims (26)
- 一种数据包丢弃方法,其特征在于,所述方法包括:接收来自第二接入网设备的第一指示信息,所述第一指示信息指示分离承载中所述第二接入网设备向终端设备发送成功的数据包,所述数据包为所述分离承载中第一接入网设备发送至所述第二接入网设备的第一数据包组中的数据包;基于所述第一指示信息向所述第二接入网设备发送第二指示信息,所述第二指示信息指示允许所述第二接入网设备丢弃的所述第一数据包组中的数据包。
- 根据权利要求1所述的方法,其特征在于,所述接收来自第二接入网设备的第一指示信息之前,所述方法还包括:向第二接入网设备发送第三指示信息,所述第三指示信息指示所述第二接入网设备需要向所述第一接入网设备进行发送成功反馈的数据包。
- 根据权利要求1所述的方法,其特征在于,所述数据包的通用分组无线业务隧道协议用户平面GTPU头中携带第四指示信息,所述第四指示信息指示所述第二接入网设备对所述数据包是否需要向所述第一接入网设备进行发送成功反馈。
- 根据权利要求1所述的方法,其特征在于,所述数据包的GTPU头中携带所述数据包所在的数据包组的序号;所述接收来自第二接入网设备的第一指示信息之前,所述方法还包括:向第二接入网设备发送第五指示信息,所述第五指示信息指示所述第二接入网设备需要向所述第一接入网设备进行数据包发送成功反馈的数据包组。
- 根据权利要求1~4中任意一项所述的方法,其特征在于,所述方法还包括:向所述终端设备发送第六指示信息,所述第六指示信息指示发送端丢弃的所述第一数据包组中的数据包,所述发送端包括所述第一接入网设备和/或所述第二接入网设备。
- 根据权利要求1~5中任意一项所述的方法,其特征在于,所述方法还包括:基于接收的所述第一指示信息,停止向所述第二接入网设备发送所述第一数据包组中的数据包。
- 一种数据包丢弃方法,其特征在于,所述方法包括:向第一接入网设备发送第一指示信息,所述第一指示信息指示分离承载中第二接入网设备向终端设备发送成功的数据包,所述数据包为所述分离承载中所述第一接入网设备发送至所述第二接入网设备的第一数据包组中的数据包;接收来自所述第一接入网设备的第二指示信息,所述第二指示信息指示允许所述第二接入网设备丢弃的所述第一数据包组中的数据包;基于所述第二指示信息丢弃所述第一数据包组中的数据包。
- 根据权利要求7所述的方法,其特征在于,所述向第一接入网设备发送第一指示信息之前,所述方法还包括:接收来自所述第一接入网设备的第三指示信息,所述第三指示信息指示所述第二接入网设备需要向所述第一接入网设备进行发送成功反馈的数据包。
- 根据权利要求7所述的方法,其特征在于,所述数据包通用分组无线业务隧道协议用户平面的GTPU头中携带第四指示信息,所述第四指示信息指示所述第二接入网设备对所述数据包是否需要向所述第一接入网设备进行发送成功反馈。
- 根据权利要求7所述的方法,其特征在于,所述数据包的GTPU头中携带所述数据包所在的数据包组的序号;所述向第一接入网设备发送第一指示信息之前,所述方法还包括:接收来自所述第一接入网设备的第五指示信息,所述第五指示信息指示所述第二接入网设备需要向所述第一接入网设备进行数据包发送成功反馈的数据包组。
- 一种数据包丢弃方法,其特征在于,所述方法包括:向第二接入网设备发送第一指示信息,所述第一指示信息指示所述第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,所述数据包为分离承载中第一接入网设备发送至所述第二接入网设备的数据包。
- 根据权利要求11所述的方法,其特征在于,所述数据包丢弃条件为数据包组中需要成功发送的数据包数量,或所述数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
- 根据权利要求11或12所述的方法,其特征在于,所述方法还包括:接收来自所述第二接入网设备的第二指示信息,所述第二指示信息指示已达到所述数据包丢弃条件的第一数据包组;基于所述第二指示信息,停止向所述第二接入网设备发送所述第一数据包组中的数据包。
- 根据权利要求11~13中任意一项所述的方法,其特征在于,所述方法还包括:接收来自所述第一接入网设备的第三指示信息,所述第三指示信息指示所述第二接入网设备丢弃的所述第一数据包组中的数据包;基于所述第三指示信息向终端设备发送第四指示信息,所述第四指示信息指示发送端丢弃的所述第一数据包组中的数据包,所述发送端包括所述第一接入网设备和/或所述第二接入网设备。
- 一种数据包丢弃方法,其特征在于,所述方法包括:接收来自第一接入网设备的第一指示信息,所述第一指示信息指示所述第二接入网设备丢弃数据包组中的数据包的数据包丢弃条件,所述数据包为分离承载中第一接入网设备发送至所述第二接入网设备的数据包;响应于第一数据包组达到所述数据包丢弃条件,丢弃所述第一数据包组中的数据包。
- 根据权利要求15所述的方法,其特征在于,所述数据包丢弃条件为数据包组中需要成功发送的数据包数量,或所述数据包丢弃条件为数据包组中需要成功发送的数据包数量在数据包组中的比例。
- 根据权利要求15或16所述的方法,其特征在于,所述方法还包括:向所述第一接入网设备发送第二指示信息,所述第二指示信息指示已达到所述数据包丢弃条件的所述第一数据包组。
- 根据权利要求15~17中任意一项所述的方法,其特征在于,所述方法还包括:向所述第一接入网设备发送第三指示信息,所述第三指示信息指示所述第二接入网设备丢弃的所述第一数据包组中的数据包。
- 一种通信装置,其特征在于,所述装置包括:包括用于执行如权利要求1~18中任一项所述方法的单元。
- 一种芯片,其特征在于,包括处理器和通信接口,所述处理器被配置用于执行如权利要求1~18中任一项所述的方法。
- 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片,其中:所述电源模组用于为所述模组设备提供电能;所述存储模组用于存储数据和指令;所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片用于执行如权利要求1~18中任一项所述的方法。
- 一种通信设备,其特征在于,包括存储器和处理器,所述存储器用于存储计算机程序,所述计算机程序包括程序指令,所述处理器被配置用于调用所述程序指令,执行如权利要求1~18中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,所述计算机存储介质中存储有计算机可读指令,当所述计算机可读指令在通信装置上运行时,使得所述通信装置执行权利要求1~18中任一项所述的方法。
- 一种计算机程序或计算机程序产品,包括代码或指令,当代码或指令在计算机上运行时,使得计算机执行如权利要求1~18中任一项所述的方法。
- 一种通信系统,其特征在于,所述通信系统包括第一接入网设备和第二接入网设备,所述第一接入网设备用于执行权利要求1~6中任一项所述的方法,所述第二接入网设备用于执行权利要求7~10中任一项所述的方法。
- 一种通信系统,其特征在于,所述通信系统包括第一接入网设备和第二接入网设备,所述第一接入网设备用于执行权利要求11~14中任一项所述的方法,所述第二接入网设备用于执行权利要求15~18中任一项所述的方法。
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| WO2020034290A1 (en) * | 2018-09-13 | 2020-02-20 | Zte Corporation | Method and apparatus for performing wireless network traffic analysis |
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