WO2022205062A1 - 一种数据处理的装置和方法 - Google Patents

一种数据处理的装置和方法 Download PDF

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Publication number
WO2022205062A1
WO2022205062A1 PCT/CN2021/084391 CN2021084391W WO2022205062A1 WO 2022205062 A1 WO2022205062 A1 WO 2022205062A1 CN 2021084391 W CN2021084391 W CN 2021084391W WO 2022205062 A1 WO2022205062 A1 WO 2022205062A1
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Prior art keywords
rlc
pdcp
data
configuration field
pdu
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PCT/CN2021/084391
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English (en)
French (fr)
Inventor
李延冰
刘继武
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21933739.1A priority Critical patent/EP4284059A4/en
Priority to PCT/CN2021/084391 priority patent/WO2022205062A1/zh
Priority to CN202180005445.7A priority patent/CN116158119A/zh
Publication of WO2022205062A1 publication Critical patent/WO2022205062A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/34Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers

Definitions

  • the present application relates to the field of communications, and, more particularly, to an apparatus and method for data processing.
  • the Radio Link Control (RLC) layer is in the process of delivering RLC protocol data units (PDUs) in the out-of-order delivery mode.
  • RLC PDUs RLC protocol data units
  • PDCP Packet Data Convergence Protocol
  • DDR double data rate
  • the present application provides a data processing method and apparatus, which can enable the RLC data to be processed locally in an out-of-order delivery manner even if the wireless communication apparatus is configured to process RLC data in an orderly delivery manner, and improve delivery accuracy.
  • a data processing method comprising: a radio communication device receiving a radio resource control (Radio resource control, RRC) message from a base station, where the RRC message includes a first radio link control RLC configuration field , the first RLC configuration field is used to indicate that the RLC data is processed in an orderly delivery manner; the wireless communication device processes the RLC data in an out-of-order delivery manner, wherein the out-of-order delivery manner is different from the sequential delivery indicated by the first RLC configuration field Way.
  • RRC radio resource control
  • the RLC PDU may be an acknowledged mode data protocol protocol data unit (Acknowleded mode dataprotocol data unit, AMD PDU) or an unacknowledged mode data protocol protocol data unit (Unacknowledged mode dataprotocol data unit, UMD PDU).
  • Acknowleded mode dataprotocol data unit AMD PDU
  • UMD PDU unacknowledged mode data protocol protocol data unit
  • the PDCP PDUs carried by the RLC PDUs are sequentially delivered according to the SNs of the received RLC PDUs.
  • the PDCP PDU carried by the PDU is reassembled into a complete PDCP PDU and then delivered.
  • the wireless communication apparatus may also directly process the RLC data in an out-of-order delivery manner, and submit the processed RLC data in an out-of-order delivery manner without receiving the RRC message from the base station.
  • the wireless communication device can process the RLC data in a sequential delivery manner, and submit the processed RLC data in a sequential delivery manner .
  • the wireless communication device receives the RRC message from the base station, the RRC message includes the first RLC configuration field for instructing to process the RLC data in a sequential delivery manner, and the wireless communication device does not use the RRC message according to the instruction.
  • the sequential delivery method processes the RLC data, but the out-of-order delivery method processes the RLC data, wherein the out-of-order delivery method is different from the sequential delivery method indicated by the first RLC configuration field.
  • the complete PDCP PDU carried by the RLC PDU can be directly decrypted, reducing one write and one read, and saving DDR bandwidth; at the same time, it also avoids the phenomenon of bursting a large number of PDCP PDUs to the PDCP layer in a short time. easy to implement.
  • the first RLC configuration field is used to indicate that the RLC data is processed in an orderly delivery manner, including: the first RLC configuration field does not carry the RLC out-of-order delivery field,
  • the RLC out-of-order delivery field is used to indicate that the RLC data is processed in an out-of-order delivery manner.
  • the RLC out-of-order delivery field may be carried in the first RLC configuration field to indicate that the RLC data is processed in an out-of-order delivery manner.
  • the first RLC configuration field carries this field, it indicates that the RLC data is processed in an out-of-order delivery manner; when the first RLC configuration field does not carry this field, it indicates that the RLC data is processed in an orderly delivery manner.
  • the first RLC configuration field in the RRC message does not carry the RLC out-of-order delivery field, thereby indirectly instructing the wireless communication apparatus to process the RLC data in an orderly delivery manner.
  • the first RLC configuration field can be used to carry fields that represent RLC sequential submission, or the first RLC configuration field can be used to represent fields that are not submitted through RLC out of order, so as to indicate that the RLC data is processed through sequential submission. Do limit.
  • the RRC message also includes a Packet Data Convergence Protocol PDCP configuration field, and the PDCP configuration field and the first RLC configuration field are used to indicate that a PDCP entity corresponds to an RLC entity, the method further includes: the wireless communication apparatus uses a PDCP reordering function.
  • the "rlc-BearerConfigSecondary-r15" field can be included in the RRC message to indicate that one PDCP entity corresponds to two RLC entities; when the above fields are not included in the RRC message, it indicates that one PDCP entity corresponds to one RLC entity .
  • the PDCP layer does not use the reordering function, and a field in the RRC message can indicate that one PDCP entity corresponds to one RLC entity, indicating that the wireless communication device does not use the PDCP reordering function.
  • a field in the RRC message can indicate that one PDCP entity corresponds to one RLC entity, indicating that the wireless communication device does not use the PDCP reordering function.
  • the PDCP configuration field and the first RLC configuration field are used to indicate that one PDCP entity corresponds to one RLC entity, including: the RRC message does not carry the second RLC configuration field.
  • the RRC message may not carry the second RLC configuration field to indicate that one PDCP entity corresponds to one RLC entity, wherein the second RLC configuration field is used to indicate that one PDCP entity corresponds to two RLC entities.
  • the third RLC configuration field can be carried in the RRC message to indicate that one PDCP entity corresponds to one RLC entity, wherein the third RLC configuration field is used to indicate that one PDCP entity does not correspond to two RLCs. entity.
  • the RRC message is an RRC connection reconfiguration message or an RRC connection re-establishment message.
  • the wireless communication device maintains a plurality of HFN data of superframe numbers, wherein the plurality of HFN data are used to enable processing of RLC data in the out-of-order delivery manner.
  • the wireless communication device is enabled to process RLC data in an out-of-order delivery manner.
  • the plurality of HFN data corresponds to a data radio bearer DRB
  • each HFN data in the plurality of HFN data includes HFN data
  • the corresponding HFN data PDCP sequence number data and RLC sequence number data
  • the window size of the PDCP sequence number indicated by the PDCP configuration field is 12 bits
  • the method further includes: the wireless communication device maintains at least one PDCP greater than 12 bits
  • a window of sequence numbers, the at least one window of PDCP sequence numbers greater than 12 bits is used to enable the PDCP reordering function.
  • the PDCP layer needs to use a reordering function.
  • the window size of the PDCP sequence number is not appropriate, it may cause that the complete RLC data cannot be received. Therefore, it is required that the wireless communication apparatus can better enable the PDCP reordering function by maintaining at least one larger window of PDCP sequence numbers.
  • a data processing apparatus configured to receive an RRC message from a base station, where the RRC message includes a first RLC configuration field, where the first RLC configuration field is used to indicate The sequential delivery method processes the RLC data; the processing module is used for processing the RLC data in the out-of-order delivery method, wherein the out-of-order delivery method is different from the sequential delivery method indicated by the first RLC configuration field.
  • the first RLC configuration field is used to indicate that the RLC data is processed in a sequential delivery manner, including:
  • the first RLC configuration field does not carry an RLC out-of-order delivery field, and the RLC out-of-order delivery field is used to indicate that the RLC data is processed in an out-of-order delivery manner.
  • the RRC message further includes a PDCP configuration field, and the PDCP configuration field and the first RLC configuration field are used to indicate that one PDCP entity corresponds to one RLC entity; this process
  • the module is also used to: use the PDCP reordering function.
  • the PDCP configuration field and the first RLC configuration field are used to indicate that one PDCP entity corresponds to one RLC entity, including: the RRC message does not carry the second RLC configuration field.
  • the RRC message is an RRC connection reconfiguration message or an RRC connection re-establishment message.
  • the processing module is further configured to: maintain a plurality of HFN data of super frame numbers, wherein the plurality of HNF data are used to enable processing in the out-of-order delivery manner RLC data.
  • the plurality of HFN data corresponds to one DRB
  • each HFN data in the plurality of HFN data includes HFN data and a PDCP sequence number corresponding to the HFN data data and RLC serial number data.
  • the window size of the PDCP sequence number indicated by the PDCP configuration field is 12 bits; the processing module is also configured to maintain at least one PDCP sequence number greater than 12 bits.
  • the window of the at least one PDCP sequence number greater than 12 bits is used to enable the PDCP reordering function.
  • a communication apparatus including a processor.
  • the processor is coupled to the memory, and can be used to execute the instructions in the memory, so as to implement the data processing method in the first aspect and any possible implementation manner of the first aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface to which the processor is coupled, and the communication interface is used for inputting and/or outputting information.
  • the information includes at least one of instructions and data.
  • the communication apparatus is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a system of chips.
  • the communication interface can be an input/output interface, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or a chip system.
  • the processor may also be embodied as processing circuitry or logic circuitry.
  • the communication apparatus is a chip or a chip system configured in the terminal device.
  • a communication device including a processor.
  • the processor is coupled to the memory, and can be used to execute the instructions in the memory, so as to implement the data processing method in the first aspect and any possible implementation manner of the first aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface to which the processor is coupled, and the communication interface is used for inputting and/or outputting information.
  • the information includes at least one of instructions and data.
  • the communication apparatus is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a system of chips.
  • the communication interface may be an input/output interface, and may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, etc. on the chip or a chip system.
  • the processor may also be embodied as processing circuitry or logic circuitry.
  • the communication apparatus is a chip or a chip system configured in a network device.
  • a fifth aspect provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, causes the communication device to implement the first aspect, and any possible implementation manner of the first aspect. method of packet processing.
  • a sixth aspect provides a computer program product containing instructions, which when executed by a computer cause a communication device to implement the data packet processing method provided in the first aspect.
  • a seventh aspect provides a chip on which a computer program is stored, and when the computer program is executed by a communication device, enables the communication device to implement the first aspect and packet processing in any possible implementation manner of the first aspect Methods.
  • a communication system including the aforementioned network device and terminal device.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • FIG. 2 is another schematic diagram of a wireless communication system 200 suitable for an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a user plane protocol stack system 300 suitable for an embodiment of the present application.
  • FIG. 4 is a schematic diagram of delivering RLC PDUs in a sequential delivery mode applicable to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a PDCP count value applicable to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of calculating a PDCP count value applicable to an embodiment of the present application
  • FIG. 7 is another schematic diagram of calculating a PDCP count value applicable to an embodiment of the present application.
  • FIG. 8 is another schematic diagram of calculating a PDCP count value applicable to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of transmitting PDCP PDUs applicable to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a data processing method 1000 provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a data delivery method proposed by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a preset maximum variation range provided by an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 16 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • 5th generation 5G
  • NR New radio
  • long term evolution long term evolution
  • LTE long term evolution
  • FDD frequency division dual Frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, such as the network device 111 shown in FIG. 1 , and the wireless communication system 100 may also include at least one terminal device, such as the terminal device 121 shown in FIG. 1 . to the terminal device 123.
  • Both the network device and the terminal device can be configured with multiple antennas, and the network device and the terminal device can communicate using the multi-antenna technology.
  • the network device when the network device communicates with the terminal device, the network device can manage one or more cells, and there can be an integer number of terminal devices in one cell.
  • the network device 111 and the terminal device 121 to the terminal device 123 form a single-cell communication system, and without loss of generality, the cell is denoted as cell #1.
  • the network device 111 may be a network device in cell #1, or in other words, the network device 111 may serve a terminal device (eg, terminal device 121) in cell #1.
  • a cell can be understood as an area within the coverage range of a wireless signal of a network device.
  • FIG. 2 is another schematic diagram of a wireless communication system 200 suitable for an embodiment of the present application.
  • the wireless communication system 200 may include one terminal device, such as the terminal device 221 in FIG. 2; the wireless communication system 200 may also include multiple network devices, such as the network device 211 and the network device 212 in FIG. 2 .
  • the terminal device 221 in FIG. 2 can communicate with the network device 221 and the network device 212 at the same time; in other words, the network device 211 and the network device 212 can jointly provide services for the terminal device 221 .
  • the network device when the network device communicates with the terminal device, the network device can manage one or more cells, and there can be an integer number of terminal devices in one cell.
  • the network device 111 and the terminal device 121 to the terminal device 123 form a single-cell communication system, and without loss of generality, the cell is denoted as cell #1.
  • the network device 111 may be a network device in cell #1, or in other words, the network device 111 may serve a terminal device (eg, terminal device 121) in cell #1.
  • a cell can be understood as an area within the coverage range of a wireless signal of a network device.
  • FIG. 1 and FIG. 2 are only exemplary illustrations, and the present application is not limited thereto.
  • the network device in the above-mentioned wireless communication system may be any device having a wireless transceiver function.
  • the equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), Radio Network Controller (Radio Network Controller, RNC), Node B (Node B, NB), Base Station Controller (Base Station Controller, BSC) , base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), base band unit (Base Band Unit, BBU), Wireless Fidelity (Wireless Fidelity, WIFI) system
  • the access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. can also be 5G, such as, NR, gNB in the system, or, transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (active antenna unit, AAU for short).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the higher-layer signaling such as the RRC layer signaling
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • FIG. 3 is a schematic diagram of a user plane protocol stack system 300 suitable for an embodiment of the present application.
  • the User Equipment mainly includes a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control layer (Media Access Control). access control, MAC) and port physical layer (PHY); eNB mainly includes PDCP layer, RLC layer, MAC layer and PHY layer.
  • the main functions of the PDCP layer include header compression, encryption/decryption, sorting, and duplication detection.
  • the main functions of the RLC layer include packet segmentation/reassembly, error correction, etc.
  • SDU Service Data Unit
  • PDU Protocol Data Unit
  • the radio link layer control protocol layer (Radio Link Control, RLC) is a radio link control layer protocol in wireless communication systems such as GPRS/WCDMA/TD-SCDMA/LTE.
  • the RLC layer is located above the MAC layer and is a part of L2, providing segmentation and retransmission services for user and control data.
  • Each RLC entity is configured by RRC, and there are three modes according to the service type: transparent mode (Transparent mode, TM), unacknowledged mode (Unacknowledged mode, UM), acknowledged mode (acknowledged mode, AM).
  • the RLC layer is located between the PDCP layer and the MAC layer. It communicates with the PDCP layer through a service access point (SAP) and communicates with the MAC layer through a logical channel. There is one RLC entity per logical channel per UE.
  • the data received by the RLC entity from the PDCP layer, or the data sent to the PDCP layer is called RLC SDU (or PDCP PDU).
  • the data received by the RLC entity from the MAC layer, or the data sent to the MAC layer is called RLC PDU (or MAC SDU).
  • the Packet Data Convergence Protocol layer which is responsible for performing IP header compression to reduce the amount of bit traffic that the wireless interface must transmit. It belongs to the second layer of the radio interface protocol stack and handles Radio Resource Management (RRC) messages on the control plane.
  • RRC Radio Resource Management
  • the PDCP sublayer provides signaling transmission services for the upper-layer RRC, and implements encryption and consistency protection of RRC signaling, as well as decryption and consistency checking of RRC signaling in the reverse direction.
  • the PDCP count value used in integrity protection and encryption is composed of the HFN and PDCP SN corresponding to the data packet.
  • the purpose of using the super frame number is to limit the number of bits of the sequence number transmitted on the air interface.
  • the HFN synchronization should be maintained between the terminal equipment and the network equipment.
  • FIG. 4 is a schematic diagram of delivering PDCP PDUs carried by RLC PDUs in a sequential delivery mode.
  • FIG. 5 is a schematic diagram of a PDCP count value.
  • the PDCP count value consists of HFN and SN.
  • the PDCP count value of 10-bit SN consists of 22-bit HFN and 10-bit SN. Among them, only the SN is carried in the PDCP PDU.
  • the UE, the eNB or the gNB obtains the HFN through the algorithm specified in the protocol, and the PDCP count value is calculated by combining the HFN and the SN according to the above structure.
  • FIG. 6 is a schematic diagram of calculating a PDCP count value.
  • the size of the PDCP SN is the downlink PDCP SN bit size
  • the size of the reordering window is equal to 2 downlink PDCP SN bit size ⁇ 1 .
  • FIG. 7 is another schematic diagram of calculating a PDCP count value.
  • the size of the PDCP SN is the number of bits of the PDCP transmitted in the downlink
  • the size of the reordering window is equal to 2 downlink PDCP SN bit size ⁇ 1 .
  • the SN of the PDCP PDU falls into different ranges in FIG. 7
  • the HFN of the PDCP PDU takes a corresponding value.
  • the PDCP count value is calculated by the HFN value corresponding to the PDCP PDU and the SN corresponding to the PDCP PDU.
  • FIG. 8 is another schematic diagram of calculating a PDCP count value.
  • the size of the PDCP SN is the number of bits of the PDCP transmitted in the downlink
  • the size of the window is equal to 2 downlink PDCP SN bit size ⁇ 1 .
  • the PDCP PDU After receiving a PDCP PDU, if the SN of the PDCP PDU falls into the shaded part in Figure 8, the PDCP PDU will be discarded; if the SN of the PDCP PDU falls into a different range in Figure 8, the SN of the PDCP PDU HFN takes the corresponding value.
  • the PDCP count value is calculated by the HFN value corresponding to the PDCP PDU and the SN corresponding to the PDCP PDU.
  • FIG. 9 is a schematic diagram of delivering PDCP PDUs.
  • the size of the RLCSN and the size of the PDCPSN are not properly configured (for example, the size of the RLC SN is configured to be 10 bits, and the size of the PDCP SN is configured to be 12 bits), there may be more than two
  • the PDCP count value of some PDCP PDUs may be incorrectly calculated.
  • a device when a device receives an RRC message instructing to process RLC data in a sequential delivery manner, the device can process the RLC data through sequential delivery, and submit the processed RLC data through sequential delivery.
  • the RLC configuration field contained in the RRC message does not contain a field for RLC out-of-order delivery, that is, does not contain the "rlc-OutOfOrderDelivery" field, it indicates that the RRC information indicates that the RLC data is processed in an orderly delivery manner.
  • the device processes the RLC data in a sequential manner according to the RRC information.
  • the PDCP layer does not use the reordering function.
  • whether the PDCP layer uses the reordering function can be implicitly indicated by indicating the correspondence between the PDCP entity and the RLC entity.
  • the PDCP layer when one PDCP entity corresponds to one RLC entity, the PDCP layer does not use the reordering function; when one PDCP entity corresponds to two RLC entities, the PDCP layer uses the reordering function.
  • the RRC message includes the "rlc-BearerConfigSecondary-r15" field, it indicates that one PDCP entity corresponds to two RLC entities.
  • the PDCP layer uses the reordering function; when the above fields are not included, it indicates a PDCP entity.
  • the entities do not correspond to two RLC entities, and at this time, the PDCP layer does not use the reordering function.
  • the device processes the RLC data in sequential delivery, which may cause the RLC layer to deliver a large number of RLCs to the PDCP layer in a short period of time.
  • the device processes the RLC data in an out-of-order manner, it may cause errors in the calculation of the PDCP count value. Therefore, a data processing method is needed to solve the above-mentioned problems.
  • the first device may be a wireless communication apparatus
  • the second device may be a network device
  • the RLC PDU may be an AMD PDU or a UMD PDU, which is not limited in this application.
  • the second device sends an RRC message to the first device.
  • the second device may send an RRC message to the first device, where the RRC message includes a first RLC configuration field, where the first RLC configuration field is used to instruct the first device to process RLC data in a sequential delivery manner.
  • the RRC message may be an RRC connection reconfiguration message or an RRC connection re-establishment message.
  • the second device may send an RRC message to the first device, where the RRC message includes a first RLC configuration field instructing the first device to process RLC data in an orderly delivery manner.
  • the first RLC configuration field may not carry a field representing processing of RLC data in an out-of-order delivery manner, thereby indirectly indicating that the RLC data is processed in an in-order delivery manner.
  • the first RLC configuration field may not carry the "rlc-OutOfOrderDelivery-r15" field, that is, a field that instructs the wireless communication device to process RLC data by way of out-of-order delivery, thereby indirectly instructing the wireless communication device to process RLC data by way of out-of-order delivery. data.
  • the out-of-order delivery method is different from the sequential delivery method indicated by the first RLC configuration field.
  • the first RLC configuration field can also carry a field representing RLC sequential delivery, or the first RLC configuration field can carry a field representing out-of-order delivery through RLC, to instruct the first device to process RLC data in an orderly delivery manner, This application is not limited here.
  • the RRC message also includes a PDCP configuration field, and the PDCP configuration field and the first RLC configuration field are used to indicate that the first device does not use PDCP. Reorder.
  • the RRC message may include the PDCP configuration field and the first RLC configuration field, but not the second RLC configuration field, indicating that one PDCP entity corresponds to one RLC entity, and indirectly instructing the first device not to use PDCP reordering.
  • the second RLC configuration field may indirectly instruct the first device to use PDCP reordering by indicating that one PDCP entity corresponds to two RLC entities.
  • the second RLC configuration field may be "rlc-BearerConfigSecondary-r15". Therefore, when the RRC message does not include the second RLC configuration field that indirectly instructs the first device to use the PDCP reordering function, the RRC message may instruct the first device not to use the PDCP reordering function.
  • a third RLC configuration field may be carried in the RRC message to indicate that one PDCP entity corresponds to one RLC entity, where the third RLC configuration field is used to indicate that one PDCP entity does not correspond to two RLC entities.
  • the first device can maintain at least one window larger than the 12-bit PDCP sequence number, and the at least one window larger than the 12-bit PDCP sequence number. Used to enable PDCP reordering function.
  • the size of the SN of the PDCP sequence number window can be set to 15 bits or 18 bits, so as to alleviate the problem when the PDCP sequence number window is too small.
  • the size configuration of the SN is unreasonable, and when the PDCP layer enables reordering, it cannot better support the problem of reordering a wider range of PDCP count values.
  • the window size of the PDCP sequence number indicated by the PDCP configuration field is 18 bits, the size of the SN of the window of the PDCP sequence number does not need to be changed.
  • the size of the SN of the window of the PDCP sequence number By setting the size of the SN of the window of the PDCP sequence number to 18 bits, it can be alleviated that when the size of the SN of the window of the PDCP sequence number is configured unreasonably, and the PDCP layer enables reordering, it cannot better support the larger size. A problem with reordering the range of PDCP count values.
  • the method of sequential delivery may be: according to the SN of the RLC PDUs in the received RLC PDU set, the PDCP PDUs carried by each RLC PDU are delivered in turn, and at the same time, if some RLC PDUs carry the segmented PDCP PDUs PDU, which can be reassembled with the PDCP PDU carried by the adjacent RLC PDU into a complete PDCP PDU, and then submitted.
  • the way of out-of-order delivery can be: when receiving an RLC PDU carrying a complete PDCP PDU, reassemble and submit the complete PDCP PDU; when the RLC PDU carries a segmented PDCP PDU, it can be in the buffer area. Buffering is performed. If the RLC PDU can be reassembled with the adjacent RLC PDU into a complete PDCP PDU, the PDCP PDU will be submitted after the reorganization.
  • the first device processes the RLC data in an out-of-order delivery manner.
  • the first device may process the RLC data in an out-of-order delivery manner.
  • the RLC layer of the first device when the RLC layer of the first device receives the carried PDCP PDU with an SN of 0 and an RLC PDU of 2, the RLC layer can deliver the carried PDCP PDU with an SN of 0 to the PDCP layer.
  • the RLC layer When the RLC layer receives the carried PDCP PDU whose SN is 1 and the RLC PDU whose SN is 1, the RLC layer can deliver the carried PDCP PDU with SN of 1 to the PDCP layer, instead of using the other modes mentioned above, that is, the The above-mentioned two RLC PDUs are buffered in the RLC layer, and then the PDCP PDUs carried by the above-mentioned RLC PDUs are respectively delivered in sequence according to the order of the SNs of the RLC PDUs.
  • the first device can process the RLC PDUs in the RLC PDU set in an out-of-order delivery mode; it can also process the RLC PDUs in the RLC PDU set in an out-of-order delivery mode without an RRC message. , which is not limited in this application.
  • the first device when the first device receives the RRC message including the first RLC configuration field instructing to process the RLC data in an in-order delivery manner, that is, without instructing the first device to process the RLC data in an out-of-order delivery manner, the first device still Process RLC data in out-of-order delivery mode, that is, when receiving an RLC PDU carrying a complete PDCP PDU, submit the complete PDCP PDU; and, if the RLC PDU carries a segmented PDCP PDU, it can be stored in the buffer area. Buffering is performed. When the RLC PDU can be reassembled with the adjacent RLC PDU into a complete PDCP PDU, the PDCP PDU is submitted after the reorganization.
  • the complete PDCP PDU carried by the RLC PDU can be directly decrypted, reducing one write and one read, and saving DDR bandwidth; at the same time, compared with the sequential delivery method, it also avoids a large amount of burst delivery to the PDCP layer in a short time.
  • the phenomenon of PDCP PDU is more convenient to realize.
  • the first device may use PDCP reordering, so that the PDCP layer reorders the received PDCP PDUs.
  • the first device receives an RRC message that indirectly indicates not to use PDCP reordering, that is, the RRC message does not include the second RLC configuration field, and does not carry a field that indicates that one PDCP entity corresponds to two RLC entities
  • the first device does not contain the second RLC configuration field.
  • a device does not perform PDCP reordering.
  • the first device receives an RRC message indicating not to use PDCP reordering, it still uses PDCP reordering. Therefore, when the RLC layer does not perform reordering, the PDCP layer performs the reordering operation, which can improve the phenomenon that the data packets received by the application layer appear out of sequence.
  • FIG. 11 is a schematic diagram of a data delivery method proposed by an embodiment of the present application.
  • the first device receives the RLC PDU whose SN is 2 and the SN of the carried PDCP PDU is 0, and submits the carried PDCP PDU to the PDCP layer;
  • the carried PDCP PDU is delivered to the PDCP layer;
  • the carried PDCP PDU is delivered to the PDCP layer.
  • the PDCP reordering function is used for processing, that is, the PDCP PDUs in order according to the SN sequence numbers from small to large are obtained.
  • the first device uses PDCP reordering.
  • the first device when the first device receives an RRC message indicating not to use PDCP reordering, that is, one PDCP entity corresponds to one RLC entity, it does not use PDCP reordering, but uses PDCP reordering. Therefore, when the RLC layer does not perform reordering, the PDCP layer performs the reordering operation, which can improve the phenomenon that the data packets received by the application layer appear out of order.
  • the first device maintains a plurality of HFN data.
  • the first device may maintain a plurality of HFN data, wherein the plurality of HFN data is used to enable processing of RLC data in the out-of-order delivery manner.
  • the multiple HFN data corresponds to one DRB, and each HFN data in the multiple HFN data includes HFN data, and PDCP sequence number data and RLC sequence number data corresponding to the HFN data.
  • the first device may determine the parameters of the HFN node of the target queue according to the RLC PDUs in the RLC PDU set, and the parameters of each HFN node of the target queue may include:
  • the first device may determine the parameters of the node of the target queue according to at least one parameter in the parameter set, where the parameter set includes at least one of the following parameters: the SN of the t-th RLC PDU, and the SN of the PDCP PDU carried by the t-th RLC PDU.
  • the parameter set includes at least one of the following parameters: the SN of the t-th RLC PDU, and the SN of the PDCP PDU carried by the t-th RLC PDU.
  • SN the count value (RX_DELIV) of PDCP SDUs that have not been submitted and are still waiting in the PDCP window
  • preset parameters wherein, for ease of understanding, the t-th RLC PDU is any RLC PDU in the RLC PDU set, and the preset parameters is the size of the SN of the PDCP window, and this parameter can be a configured parameter.
  • the HFN sequence number of the PDCP PDU carried by the t-th RLC PDU is determined according to at least one parameter including the parameter set, and a new node is added to the target queue, It is determined that the sequence number of the HFN of the newly added node is the HFN sequence number of the PDCP PDU carried by the t-th RLC PDU, the starting SN of the PDCP of the newly added node is 0, and the end SN of the PDCP of the newly added node is The SN of the PDCP PDU carried by the t-th RLC PDU, and the start SN and the end SN of the RLC of the newly added node are both the SN of the t-th RLC PDU.
  • the SN of the t-th RLC PDU and the start SN and the end SN of the RLC of the nodes in the target sequence are judged in turn, based on the As a result of the judgment, the parameters of the nodes of the target queue are determined according to the parameter set.
  • the result of the judgment is that the SN of the t-th RLC PDU is between the start SN and the end SN of the RLC of the tail node of the target queue
  • the A new node is added after the tail node, and the parameters of the newly added node are determined according to the parameter set and the HFN sequence number of the tail node of the target queue, wherein the first preset condition is the PDCP carried by the t-th RLC PDU
  • the SN of the PDU is smaller than the end SN of the PDCP of the tail node of the target queue, and the difference between the end SN of the PDCP of the tail node of the target queue and the SN of the PDCP PDU carried by the t-th RLC PDU is greater than 2 preset parameters- 1 .
  • the end SN of the PDCP of this newly added node is the SN of the PDCP PDU carried by the t th RLC PDU
  • the start SN and the end SN of the RLC of this newly added node are the t th RLC PDU.
  • SN and determine that the HFN sequence number of the newly added node is the HFN sequence number of the tail node of the target queue + 1.
  • the result of the judgment is that the SN of the t-th RLC PDU is between the start SN and the end SN of the RLC of the tail node of the target queue
  • determine The end SN of the RLC of the tail node of the target queue is the SN of the t-th RLC PDU; and, when the SN of the PDCP PDU carried by the t-th RLC PDU is greater than the end SN of the PDCP of the tail node of the target queue, It is determined that the end SN of the PDCP of the tail node of the target queue is the SN of the PDCP PDU carried by the t-th RLC PDU.
  • the SN of the t-th RLC PDU is lower than the SN of the t-th RLC PDU.
  • the starting SN of the RLC PDU of the tail node of the target queue is determined to be the SN of the t-th RLC PDU.
  • the n-th node is not the tail node, and the n-th node is not the tail node.
  • the second preset condition is that the SN of the t-th RLC PDU is higher than the end SN of the RLC PDU of the n+1-th node of the target sequence, and the SN of the t-th RLC PDU is lower than the first state the value of the variable.
  • the n-th node is not the tail node, and the n-th node is not the tail node.
  • the end SN of the RLC of the nth node of the target queue is the SN of the tth RLC PDU; when the PDCP PDU carried by the tth RLC PDU is When the SN of the target queue is greater than the end SN of the PDCP of the nth node of the target queue, it is further determined that the PDCP end SN of the nth node of the target queue is the SN of the PDCP PDU carried by the tth RLC PDU.
  • the n-th node is not the tail node, and the n-th node is not the tail node.
  • a preset condition determines that the starting SN of the RLC of the n+1th node of the target queue is the SN of the tth RLC PDU; when the tth RLC When the SN of the PDCP PDU carried by the PDU is greater than the end SN of the PDCP of the n+1 th node of the target queue, determine that the PDCP end SN of the n+1 th node of the target queue is the PDCP carried by the t th RLC PDU SN of the PDU.
  • the n-th node is not the tail node
  • the SN of the t-th RLC PDU is higher than the starting SN of the RLC PDU of the n-th node of the target queue
  • the starting SN of the RLC of the n-th node of the target queue is determined to be the SN of the t-th RLC PDU .
  • the first device determines the PDCP count value of the PDCP PDU carried by the RLC PDU in the RLC PDU set.
  • the first device may determine the parameter according to the parameters of the node of the target queue corresponding to the RLC PDU in the RLC PDU set and the SN of the PDCP PDU carried by the RLC PDU in the RLC PDU set.
  • the first device may perform an OR operation with the SN of the PDCP PDU carried by the RLC PDU in the RLC PDU set by moving the sequence number of the HFN of the node of the target queue corresponding to the RLC PDU in the RLC PDU set to a high position , determine the PDCP count value of the PDCP PDU carried by the RLC PDU in the RLC PDU set.
  • the first device may determine the t-th RLC PDU by moving the sequence number of the HFN of the node in the target queue corresponding to the t-th RLC PDU to a high position, and performing an OR operation with the SN of the PDCP PDU carried by the t-th RLC PDU PDCP count value of PDCP PDUs carried by each RLC PDU.
  • the parameter information of each HFN node in the target queue is determined according to the RLC PDU in the RLC PDU set, and the parameter information of each HFN node includes: the start SN and the end SN of the PDCP , the starting SN and ending SN of the RLC, and the sequence number of the HFN; finally, by moving the sequence number of the HFN of the HFN node of the target queue corresponding to the RLC PDU in the RLC PDU set to a high position, it is the same as the RLC PDU set in the RLC PDU set.
  • the SN of the PDCP PDU carried by the RLC PDU is ORed to determine the PDCP count value of the PDCP PDU carried by the RLC PDU in the RLC PDU set. Therefore, the problem of incorrect calculation of the PDCP count value caused during the out-of-order delivery process can be avoided, and the accuracy of calculating the PDCP count value is improved.
  • the SNs of the RLC PDUs in the RLC PDU set are all within the first SN range, and the first SN range is based on the first state variable VR(H) or VR(UH) and the second state variable.
  • FIG. 12 is a schematic diagram of a preset maximum variation range proposed by an embodiment of the present application. As shown in FIG.
  • the preset maximum variation range of the first state variable is within the range of SN of 6 to 14, so that the first state variable The transition of the variable cannot reach the range where the value of SN is greater than 14.
  • the above-mentioned preset maximum variation range can be determined according to the size of the PDCP window and the number of PDCP PDUs carried by the RLC PDU in the RLC PDU set, for example, the preset maximum variation range can be the size of the PDCP window and the RLC PDU.
  • the preset maximum variation range can be limited.
  • the maximum change range is such that the preset maximum change range does not exceed the range of the PDCP window, so as to avoid the problem of inaccurate calculation of the PDCP count value due to an excessively large jump range of the first state variable.
  • the methods and operations implemented by the terminal device may also be implemented by components (such as chips or circuits) that can be used in the terminal device, and the methods and operations implemented by the network device may also be implemented by available devices. It is implemented in a component (such as a chip or circuit) of a network device.
  • each network element such as a transmitter device or a receiver device
  • each network element includes hardware structures and/or software modules corresponding to performing each function in order to implement the above functions.
  • Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.
  • FIG. 13 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication device 1300 includes a receiving module 1310 and a processing module 1320 .
  • the receiving module 1310 can implement corresponding communication functions, and the processing module 1310 is used for data processing.
  • the receiving module 1310 may also be referred to as a communication interface or a communication module.
  • the communication apparatus 1300 may further include a storage module, which may be used to store instructions and/or data, and the processing module 1320 may read the instructions and/or data in the storage module, so that the communication apparatus implements the foregoing method Example.
  • a storage module which may be used to store instructions and/or data
  • the processing module 1320 may read the instructions and/or data in the storage module, so that the communication apparatus implements the foregoing method Example.
  • the communication apparatus 1300 may be configured to perform the actions performed by the first device in the above method embodiments.
  • the communication apparatus 1300 may be the first device or a component that may be configured in the first device, and the receiving module 1310 is configured to perform the actions performed by the first device.
  • the processing module 1320 is configured to perform the processing-related operations on the first device side in the above method embodiments.
  • the communication apparatus 1300 may be used to perform the actions performed by the second device in the above method embodiments.
  • the communication apparatus 1300 may be the second device or a component that can be configured in the second device, and the receiving module 1310 uses
  • the processing module 1320 is configured to perform the operations related to the processing on the second device side in the above method embodiments.
  • the communication apparatus 1300 is used for performing the actions performed by the first device in the embodiment shown in FIG. 10 above, the receiving module 1310 is used for: S1001; the processing module 1320 is used for: S1002 to S1004.
  • the communication apparatus 1300 may implement steps or processes corresponding to the first device in the method 1000 according to the embodiment of the present application, and the communication apparatus 1300 may include a method for executing the first device in the method 1000 in FIG. 10 . module. Moreover, each module in the communication device 1300 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method 1000 in FIG. 10 .
  • the receiving module 1310 can be used to execute the step 1001 of the method 1000
  • the processing module 1320 can be used to execute the steps 1002 to 1004 of the method 1000 .
  • the communication apparatus 1300 is configured to perform the actions performed by the second device in the embodiment shown in FIG. 10 above, and the receiving module 1310 is configured to perform S1001.
  • the communication apparatus 1300 may implement steps or processes corresponding to the second device in the method 1000 according to the embodiment of the present application, and the communication apparatus 1300 may include a method for executing the second device in the method 1000 in FIG. 10 . module. Moreover, each module in the communication device 1300 and the above-mentioned other operations and/or functions are in order to implement the corresponding flow of the method 1000 in FIG. 10 .
  • the receiving module 1310 can be used to execute the step 1001 in the method 1000 .
  • the processing module 1320 in the above embodiments may be implemented by at least one processor or multi-core processor or processing core or processor-related circuit.
  • the receiving module 1310 may be implemented by a receiver or a transceiver or a receiver-related circuit.
  • the receiving module 1310 may also be referred to as a communication module or a communication interface.
  • the storage module may be implemented by at least one memory.
  • an embodiment of the present application further provides a communication apparatus 1400 .
  • the communication device 1400 includes a processor 1410 coupled with a memory 1420, the memory 1420 is used for storing computer programs or instructions and/or data, the processor 1410 is used for executing the computer programs or instructions and/or data stored in the memory 1420, The methods in the above method embodiments are caused to be executed.
  • the communication apparatus 1400 includes one or more processors 1410 .
  • the communication apparatus 1400 may further include a memory 1420 .
  • the communication device 1400 may include one or more memories 1420 .
  • the memory 1420 may be integrated with the processor 1410, or provided separately.
  • the communication apparatus 1400 may further include a transceiver 1430, and the transceiver 1430 is used for signal reception and/or transmission.
  • the processor 1410 is used to control the transceiver 1430 to receive and/or transmit signals.
  • the communication apparatus 1400 is configured to implement the operations performed by the first device in the above method embodiments.
  • the processor 1410 is configured to implement the processing-related operations performed by the first device in the above method embodiments
  • the transceiver 1430 is configured to implement the transceiving-related operations performed by the first device in the above method embodiments.
  • the communication apparatus 1400 is configured to implement the operations performed by the second device in the above method embodiments.
  • the processor 1410 is configured to implement the processing-related operations performed by the second device in the above method embodiments
  • the transceiver 1430 is configured to implement the transceiving-related operations performed by the second device in the above method embodiments.
  • This embodiment of the present application further provides a communication apparatus 1500, where the communication apparatus 1500 may be a first device or a chip.
  • the communication apparatus 1500 may be used to perform the operations performed by the first device in the foregoing method embodiments.
  • FIG. 15 shows a simplified schematic structural diagram of the first device.
  • the first device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control the first device, execute software programs, process data of the software programs, and the like.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of first devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data .
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with a transceiver function may be regarded as a receiving module of the first device, and the processor with a processing function may be regarded as a processing module of the first device.
  • the terminal device includes a receiving module 1510 and a processing module 1520 .
  • the receiving module 1510 may also be referred to as a receiver, a transceiver, a receiving circuit, a transceiver, a transceiver, and the like.
  • the processing module 1520 may also be referred to as a processor, a multi-core processor, a processing core, a processing circuit, a processing single board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the receiving module 1510 may be regarded as a receiving module, and the device for implementing the transmitting function in the receiving module 1510 may be regarded as a transmitting module, that is, the receiving module 1510 includes a receiving module and a transmitting module.
  • the receiving module may also sometimes be referred to as a receiver, a transceiver, a receiving circuit, a transceiver, a transceiver, and the like.
  • the sending module may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit.
  • the processing module 1520 is configured to perform the processing actions of the first device in FIG. 10 .
  • the processing module 1520 is configured to perform the processing steps in steps 1002 to 1004 in FIG. 10 ;
  • the receiving module 1510 is configured to perform the transceiving operation in step 1001 in FIG. 10 .
  • FIG. 15 is only an example and not a limitation, and the above-mentioned first device including the receiving module and the processing module may not depend on the structure shown in FIG. 15 .
  • the chip When the communication device 1500 is a chip, the chip includes a receiving module and a processing module.
  • the receiving module may be an input/output circuit or a communication interface;
  • the processing module may be a processor, a microprocessor or an integrated circuit integrated on the chip.
  • This embodiment of the present application further provides a communication apparatus 1600, where the communication apparatus 1600 may be a second device or a chip.
  • the communication apparatus 1600 may be used to perform the operations performed by the network device in the foregoing method embodiments.
  • Fig. 16 shows a simplified schematic diagram of the structure of a base station.
  • the base station includes part 1610 and part 1620.
  • the 1610 part is mainly used for sending and receiving radio frequency signals and the conversion of radio frequency signals and baseband signals; the 1620 part is mainly used for baseband processing and controlling the base station.
  • the 1610 part can generally be referred to as a transceiver module, a transceiver, a transceiver circuit, or a transceiver.
  • the 1620 part is usually the control center of the base station, which can usually be called a processing module, and is used to control the base station to perform the processing operations on the network device side in the foregoing method embodiments.
  • the transceiver module of the 1610 part which can also be called a transceiver or a transceiver, etc., includes an antenna and a radio frequency circuit, wherein the radio frequency circuit is mainly used for radio frequency processing.
  • the device used for implementing the receiving function in part 1610 may be regarded as a receiving module
  • the device used for implementing the sending function may be regarded as a sending module, that is, part 1610 includes a receiving module and a sending module.
  • the receiving module may also be called a receiver, a receiver, or a receiving circuit, and the like
  • the sending module may be called a transmitter, a transmitter, or a transmitting circuit, and the like.
  • the 1620 portion may include one or more single boards, each of which may include one or more processors and one or more memories.
  • the processor is used to read and execute the program in the memory to realize the baseband processing function and control the base station. If there are multiple boards, each board can be interconnected to enhance the processing capability.
  • one or more processors may be shared by multiple boards, or one or more memories may be shared by multiple boards, or one or more processors may be shared by multiple boards at the same time. device.
  • the transceiver module of part 1610 is used to perform the steps related to the transmission and reception performed by the network device in the embodiment shown in FIG. 4 ; the part 1620 is used to perform the steps of the embodiment shown in FIG. processing related steps.
  • the transceiver module in part 1610 is used to perform the steps related to the transmission and reception performed by the network device in the embodiment shown in FIG. The processing-related steps performed.
  • FIG. 16 is only an example and not a limitation, and the above-mentioned network device including a transceiver module and a processing module may not depend on the structure shown in FIG. 16 .
  • the chip When the communication device 1600 is a chip, the chip includes a transceiver module and a processing module.
  • the transceiver module may be an input/output circuit or a communication interface;
  • the processing module is a processor, a microprocessor or an integrated circuit integrated on the chip.
  • Embodiments of the present application further provide a computer-readable storage medium, on which computer instructions for implementing the method executed by the terminal device or the method executed by the network device in the foregoing method embodiments are stored.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the terminal device or the method executed by the network device in the above method embodiments.
  • Embodiments of the present application further provide a computer program product including instructions, which, when executed by a computer, cause the computer to implement the method executed by the terminal device or the method executed by the network device in the above method embodiments.
  • An embodiment of the present application further provides a communication system, where the communication system includes the network device and the terminal device in the above embodiments.
  • the terminal device or the network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory).
  • the operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer may include applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program in which the codes of the methods provided by the embodiments of the present application are recorded can be executed to execute the methods according to the embodiments of the present application.
  • the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • aspects or features of the present application may be implemented as methods, apparatus, or articles of manufacture using standard programming and/or engineering techniques.
  • article of manufacture as used herein may encompass a computer program accessible from any computer-readable device, carrier or media.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, data center, etc., which includes one or more available mediums integrated.
  • Useful media may include, but are not limited to, magnetic media or magnetic storage devices (eg, floppy disks, hard disks (eg, removable hard disks), magnetic tapes), optical media (eg, optical disks, compact discs) , CD), digital versatile disc (digital versatile disc, DVD), etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), card, stick or key drive, etc. ), or semiconductor media (such as solid state disk (SSD), etc., U disk, read-only memory (ROM), random access memory (RAM), etc. that can store programs medium of code.
  • SSD solid state disk
  • Various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • processors mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits ( application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM).
  • RAM can be used as an external cache.
  • RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambus RAM, DR RAM).
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • Direct memory bus random access memory direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components
  • the memory storage module
  • memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.
  • the disclosed apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the above modules is only a logical function division.
  • multiple modules or components may be combined or Integration into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, which may be in electrical, mechanical or other forms.
  • modules described above as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to implement the solution provided in this application.
  • each functional module in each embodiment of the present application may be integrated into one module, or each module may exist physically alone, or two or more modules may be integrated into one module.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device or the like.
  • Computer instructions may be stored on or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g.
  • coaxial cable fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • DSL digital subscriber line
  • wireless eg, infrared, wireless, microwave, etc.

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

Abstract

一种数据处理的方法,包括:无线通信装置接收来自基站的无线资源控制RRC消息,RRC消息中包括第一无线链路控制RLC配置字段,第一无线链路控制RLC配置字段用于指示以顺序递交方式处理RLC数据;无线通信装置以乱序递交方式处理RLC数据,其中,乱序递交方式不同于第一无线链路控制RLC配置字段指示的顺序递交方式。由此,即使基站配置无线通信装置以顺序递交方式处理RLC数据,无线通信装置依然以乱序递交方式处理RLC数据,对于RLC PDU承载的完整的PDCP PDU,可以直接进行解密,减少一写一读,节省DDR带宽;同时,也避免了在短时间内向PDCP层突发递交大量的PDCP PDU的问题,更便于实现。

Description

一种数据处理的装置和方法 技术领域
本申请涉及通信领域,并且,更具体地,涉及一种数据处理的装置和方法。
背景技术
在通信过程中,无线链路控制(Radio link control,RLC)层在通过乱序递交的模式递交RLC协议数据单元(Protocol data unit,PDU)的过程中,较于顺序递交的模式,对于RLC PDU承载的完整的分组数据汇聚协议(Packet data convergence protocol,PDCP)PDU,可以直接进行解密,减少一写一读,节省双倍速内存(Double data rate,DDR)带宽;同时,也避免了在顺序递交处理时,在短时间内向PDCP层突发递交大量的RLC PDU承载的PDCP PDU的现象;并且,通过乱序递交的模式递交RLC PDU承载的PDCP PDU,相对于通过顺序递交的模式递交RLC PDU承载的PDCP PDU,更便于实现。
所以,需要一种数据包处理的方法,能够即使在得到配置信息为以顺序递交的模式递交RLC PDU承载的PDCP PDU,也能够按照乱序递交的模式进行处理,并且提高递交的准确性。
发明内容
本申请提供一种数据处理的方法与装置,可以使得即使无线通信装置被配置为以顺序递交方式处理RLC数据,也能够在本地以乱序递交方式处理RLC数据,并且提高递交的准确性。
第一方面,提供了一种数据处理的方法,该方法包括:无线通信装置接收来自基站的无线资源控制(Radio resource control,RRC)消息,该RRC消息中包括第一无线链路控制RLC配置字段,该第一RLC配置字段用于指示以顺序递交方式处理RLC数据;该无线通信装置以乱序递交方式处理RLC数据,其中,该乱序递交方式不同于该第一RLC配置字段指示的顺序递交方式。
应理解,在上述乱序递交模式中,当接收一个RLC PDU承载了完整的PDCP PDU之时,重组并递交该完整的PDCP PDU;当该RLC PDU承载的是分段的PDCP PDU之时,可以在缓存区进行缓存,如果该RLC PDU可以与相邻的RLC PDU重组为一个完整的PDCP PDU,则重组之后再完成递交PDCP PDU。其中,RLC PDU可以是确认模式数据协议协议数据单元(Acknowleded mode dataprotocol data unit,AMD PDU)或非确认模式数据协议协议数据单元(Unacknowledged mode dataprotocol data unit,UMD PDU)。
还应理解,在上述顺序递交模式中,根据接收到的RLC PDU的SN依次递交RLC PDU承载的PDCP PDU,同时,如果有的RLC PDU承载了分段的PDCP PDU,可以先与相邻的RLC PDU承载的PDCP PDU重组成为一个完整的PDCP PDU,再将其进行递交。
还应理解,无线通信装置也可以在未接收来自基站的RRC消息的情况下,直接以乱 序递交的方式处理RLC数据,并通过乱序递交的方式递交处理之后的RLC数据。
通常情况下,当无线通信装置接收到指示以顺序递交方式处理RLC数据的RRC消息时,无线通信装置可以通过顺序递交的方式对RLC数据进行处理,并通过顺序递交的方式递交处理后的RLC数据。但是,基于上述方案,当无线通信装置接收了来自基站的RRC消息,RRC消息中包括用于指示以顺序递交方式处理RLC数据的第一RLC配置字段,无线通信装置并未根据RRC消息的指示以顺序递交方式处理RLC数据,而是以乱序递交方式处理RLC数据,其中,乱序递交方式不同于第一RLC配置字段指示的顺序递交方式。即,当接收一个承载完整的PDCP PDU的RLC PDU时,递交该完整的PDCP PDU;如果该RLC PDU承载的是分段的PDCP PDU,可以在缓存区进行缓存,当该RLC PDU可以与相邻的RLC PDU重组为一个完整的PDCP PDU,则重组之后再完成递交PDCP PDU。由此,对于RLC PDU承载的完整的PDCP PDU,可以直接进行解密,减少一写一读,节省DDR带宽;同时,也避免了在短时间内向PDCP层突发递交大量的PDCP PDU的现象,更便于实现。
结合第一方面,在第一方面的某些实现方式中,该第一RLC配置字段用于指示以顺序递交方式处理RLC数据,包括:该第一RLC配置字段中未携带RLC乱序递交字段,该RLC乱序递交字段用于指示以乱序递交方式处理RLC数据。
在现有协议中,可以通过第一RLC配置字段中携带RLC乱序递交字段,即,“rlc-OutOfOrderDelivery-r15”字段,指示以乱序递交方式处理RLC数据。当第一RLC配置字段携带了该字段,则指示以乱序递交方式处理RLC数据;当第一RLC配置字段未携带该字段,则指示以顺序递交方式处理RLC数据。
基于上述方案,可以通过RRC消息中的第一RLC配置字段未携带RLC乱序递交字段,从而间接指示无线通信装置通过顺序递交方式处理RLC数据。
此外,可以通过第一RLC配置字段携带表征RLC顺序递交的字段,或通过第一RLC配置字段表征携带不通过RLC乱序递交的字段,以指示通过顺序递交方式处理RLC数据,本申请在此不做限定。
结合第一方面,在第一方面的某些实现方式中,该RRC消息中还包括分组数据汇聚协议PDCP配置字段,该PDCP配置字段和该第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体,该方法还包括:该无线通信装置使用PDCP重排序功能。
在现有协议中,可以通过RRC消息中包括“rlc-BearerConfigSecondary-r15”字段,以指示一个PDCP实体对应两个RLC实体;当RRC消息中不包括上述字段,则指示一个PDCP实体对应一个RLC实体。
通常情况下,在顺序递交方式中,PDCP层不使用重排序功能,可以通过RRC消息中的字段指示一个PDCP实体对应一个RLC实体,指示无线通信装置不使用PDCP重排序功能。但是,基于上述方案,即使无线通信装置接收了指示不使用PDCP重排序的RRC消息,然而,在乱序递交方式中,由于RLC层并未使用重排序功能,所以,即使无线通信装置接收RRC消息,依然使用PDCP重排序功能,完成乱序递交。由此,可以改善应用层收到的数据包出现乱序的现象。
结合第一方面,在第一方面的某些实现方式中,该PDCP配置字段和该第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体,包括:该RRC消息中未携带第二 RLC配置字段。
基于上述方案,可以通过RRC消息中未携带第二RLC配置字段,以指示一个PDCP实体对应一个RLC实体,其中,第二RLC配置字段用于指示一个PDCP实体对应两个RLC实体。
可能实现的另一种方式中,可以通过RRC消息中携带第三RLC配置字段,以指示一个PDCP实体对应一个RLC实体,其中,第三RLC配置字段为用于指示一个PDCP实体不对应两个RLC实体。
结合第一方面,在第一方面的某些实现方式中,该RRC消息为RRC连接重配置消息或RRC连接重建立消息。
结合第一方面,在第一方面的某些实现方式中,该无线通信装置维护多个超帧号HFN数据,其中,该多个HFN数据用于使能以该乱序递交方式处理RLC数据。
基于上述方案,可以通过维护多个HFN数据,从而无线通信装置使能以乱序递交方式处理RLC数据。
结合第一方面,在第一方面的某些实现方式中,该多个HFN数据对应一个数据无线承载DRB,该多个HFN数据中的每个HFN数据均包括HFN数据,以及该HFN数据对应的PDCP序列号数据和RLC序列号数据。
结合第一方面,在第一方面的某些实现方式中,该PDCP配置字段指示的PDCP序列号的窗口大小为12个比特,该方法还包括:该无线通信装置维护至少一个大于12个比特PDCP序列号的窗口,该至少一个大于12个比特PDCP序列号的窗口用于使能该PDCP重排序功能。
基于上述方案,当RLC层以乱序递交模式处理RLC数据,并以乱序递交模式递交RLC数据,PDCP层需要使用重排序功能。此时,如果PDCP序列号的窗口大小不合适,可能会导致无法接收完整的RLC数据。所以,需要无线通信装置可以通过维护至少一个更大比特的PDCP序列号的窗口,使得更好地使能PDCP重排序功能。
第二方面,提供了一种数据处理的装置,该装置包括:接收模块,用于接收来自基站的RRC消息,该RRC消息中包括第一RLC配置字段,该第一RLC配置字段用于指示以顺序递交方式处理RLC数据;处理模块,用于以乱序递交方式处理RLC数据,其中,该乱序递交方式不同于该第一RLC配置字段指示的顺序递交方式。
由上述数据处理的装置带来的有益效果,可以参考第一方面的具体描述,为了简洁,此处不再赘述。
结合第二方面,在第二方面的某些实现方式中,该第一RLC配置字段用于指示以顺序递交方式处理RLC数据,包括:
该第一RLC配置字段中未携带RLC乱序递交字段,该RLC乱序递交字段用于指示以乱序递交方式处理RLC数据。
由上述数据处理的装置带来的有益效果,可以参考第一方面的具体描述,为了简洁,此处不再赘述。
结合第二方面,在第二方面的某些实现方式中,该RRC消息中还包括PDCP配置字段,该PDCP配置字段和该第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体;该处理模块还用于:使用PDCP重排序功能。
由上述数据处理的装置带来的有益效果,可以参考第一方面的具体描述,为了简洁,此处不再赘述。
结合第二方面,在第二方面的某些实现方式中,该PDCP配置字段和该第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体,包括:该RRC消息中未携带第二RLC配置字段。
结合第二方面,在第二方面的某些实现方式中,该RRC消息为RRC连接重配置消息或RRC连接重建立消息。
结合第二方面,在第二方面的某些实现方式中,该处理模块还用于:维护多个超帧号HFN数据,其中,该多个HNF数据用于使能以该乱序递交方式处理RLC数据。
由上述数据处理的装置带来的有益效果,可以参考第一方面的具体描述,为了简洁,此处不再赘述。
结合第二方面,在第二方面的某些实现方式中,该多个HFN数据对应一个DRB,该多个HFN数据中的每个HFN数据均包括HFN数据,以及该HFN数据对应的PDCP序列号数据和RLC序列号数据。
结合第二方面,在第二方面的某些实现方式中,该PDCP配置字段指示的PDCP序列号的窗口大小为12个比特;该处理模块还用于维护至少一个大于12个比特的PDCP序列号的窗口,该至少一个大于12个比特PDCP序列号的窗口用于使能该PDCP重排序功能。
由上述数据处理的装置带来的有益效果,可以参考第一方面的具体描述,为了简洁,此处不再赘述。
第三方面,提供一种通信装置,包括处理器。该处理器与存储器耦合,可用于执行存储器中的指令,以实现上述第一方面以及第一方面中任一种可能实现方式中的数据处理的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合,该通信接口用于输入和/或输出信息。该信息包括指令和数据中的至少一项。
在一种实现方式中,该通信装置为终端设备。当该通信装置为终端设备时,该通信接口可以是收发器,或,输入/输出接口。
在另一种实现方式中,该通信装置为芯片或芯片系统。当该通信装置为芯片或芯片系统时,该通信接口可以是输入/输出接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。该处理器也可以体现为处理电路或逻辑电路。
在另一种实现方式中,该通信装置为配置于终端设备中的芯片或芯片系统。
第四方面,提供一种通信装置,包括处理器。该处理器与存储器耦合,可用于执行存储器中的指令,以实现上述第一方面以及第一方面中任一种可能实现方式中的数据处理的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合,该通信接口用于输入和/或输出信息。该信息包括指令和数据中的至少一项。
在一种实现方式中,该通信装置为网络设备。当该通信装置为网络设备时,该通信接口可以是收发器,或,输入/输出接口。
在另一种实现方式中,该通信装置为芯片或芯片系统。当该通信装置为芯片或芯片系 统时,该通信接口可以是输入/输出接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。该处理器也可以体现为处理电路或逻辑电路。
在另一种实现方式中,该通信装置为配置于网络设备中的芯片或芯片系统。
第五方面,提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被通信装置执行时,使得该通信装置实现第一方面,以及第一方面的任一可能的实现方式中的数据包处理的方法。
第六方面,提供一种包含指令的计算机程序产品,该指令被计算机执行时使得通信装置实现第一方面提供的数据包处理的方法。
第七方面,提供一种芯片,其上存储有计算机程序,该计算机程序被通信装置执行时,使得该通信装置实现第一方面,以及第一方面的任一可能的实现方式中的数据包处理的方法。
第八方面,提供了一种通信系统,包括前述的网络设备和终端设备。
附图说明
图1是适用于本申请实施例的无线通信系统100的一示意图。
图2是适用于本申请实施例的无线通信系统200的另一示意图。
图3是适用于本申请实施例的用户面协议栈系统300的一示意图。
图4是适用于本申请实施例的一种顺序递交模式下递交RLC PDU的一示意图。
图5是适用于本申请实施例的一种PDCP计数值的一示意图。
图6是适用于本申请实施例的一种计算PDCP计数值的一示意图
图7是适用于本申请实施例的一种计算PDCP计数值的另一示意图。
图8是适用于本申请实施例的一种计算PDCP计数值的另一示意图。
图9是适用于本申请实施例的一种传递PDCP PDU的一示意图。
图10是本申请实施例提供的一种数据处理的方法1000的一示意性流程图。
图11是本申请实施例提出的一种数据递交的方法的一示意图。
图12是本申请实施例提供的一种预设的最大的变化范围的一示意图。
图13是本申请实施例提供的通信装置的示意性框图。
图14是本申请实施例提供的通信装置的示意性框图。
图15是本申请实施例提供的通信装置的示意性框图。
图16是本申请实施例提供的通信装置的示意性框图。
具体实施方式
下面将结合附图,对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统,例如:第五代(5th generation,5G)系统或NR(New radio)系统、长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)、通用移动通信系统(universal mobile telecommunication system,UMTS)等。
图1是适用于本申请实施例的无线通信系统100的一示意图。如1图所示,该无线通 信系统100可以包括至少一个网络设备,例如图1所示的网络设备111,该无线通信系统100还可以包括至少一个终端设备,例如图1所示的终端设备121至终端设备123。网络设备和终端设备均可配置多个天线,网络设备与终端设备可使用多天线技术通信。
其中,网络设备和终端设备通信时,网络设备可以管理一个或多个小区,一个小区中可以有整数个终端设备。可选地,网络设备111和终端设备121至终端设备123组成一个单小区通信系统,不失一般性,将小区记为小区#1。网络设备111可以是小区#1中的网络设备,或者说,网络设备111可以为小区#1中的终端设备(例如终端设备121)服务。
需要说明的是,小区可以理解为网络设备的无线信号覆盖范围内的区域。
图2是适用于本申请实施例的无线通信系统200的另一示意图。如图2所示,该无线通信系统200可以包括一个终端设备,例如图2中的终端设备221;该无线通信系统200还可以多个网络设备,例如图2中的网络设备211和网络设备212。图2中的终端设备221可以同时与网络设备221和网络设备212进行通信;或者说,网络设备211和网络设备212可以联合为终端设备221提供服务。
其中,网络设备和终端设备通信时,网络设备可以管理一个或多个小区,一个小区中可以有整数个终端设备。可选地,网络设备111和终端设备121至终端设备123组成一个单小区通信系统,不失一般性,将小区记为小区#1。网络设备111可以是小区#1中的网络设备,或者说,网络设备111可以为小区#1中的终端设备(例如终端设备121)服务。
需要说明的是,小区可以理解为网络设备的无线信号覆盖范围内的区域。
应理解,图1与图2仅是示例性说明,本申请并未限定于此。
应理解,上述无线通信系统中的网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于:演进型节点B(evolved Node B,eNB)、无线网络控制器(Radio Network Controller,RNC)、节点B(Node B,NB)、基站控制器(Base Station Controller,BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如,Home evolved NodeB,或Home Node B,HNB)、基带单元(Base Band Unit,BBU),无线保真(Wireless Fidelity,WIFI)系统中的接入点(Access Point,AP)、无线中继节点、无线回传节点、传输点(transmission point,TP)或者发送接收点(transmission and reception point,TRP)等,还可以为5G,如,NR,系统中的gNB,或,传输点(TRP或TP),5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU),或,分布式单元(distributed unit,DU)等。
在一些部署中,gNB可以包括集中式单元(centralized unit,CU)和DU。gNB还可以包括有源天线单元(active antenna unit,简称AAU)。CU实现gNB的部分功能,DU实现gNB的部分功能。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),分组数据汇聚层协议(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(media access control,MAC)层和物理(physical,PHY)层的功能。AAU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,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU+AAU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。 此外,可以将CU划分为接入网(radio access network,RAN)中的网络设备,也可以将CU划分为核心网(core network,CN)中的网络设备,本申请对此不做限定。
图3是适用于本申请实施例的用户面协议栈系统300的一示意图。如图3所示,用户设备(User equipment,UE)主要包括分组数据汇聚层协议(Packet data convergence protocol,PDCP)层、无线链路控制(Radio link control,RLC)层、介质访问控制层(Media access control,MAC)与端口物理层(Physical layer,PHY);eNB主要包括PDCP层、RLC层、MAC层与PHY层。PDCP层的主要功能包括头压缩、加密/解密、排序和复制检测等。RLC层的主要功能包括数据包的分段/重组、纠错等。
为便于理解本申请实施例,下面首先对本申请中涉及的几个术语做简单介绍。
1.服务数据单元和协议数据单元
服务数据单元(Service data unit,SDU)和上一层的协议数据单元(Protocol data unit,PDU)是一一对应的。进入每个子层未被处理的数据称为服务数据单元(SDU),经过子层处理后形成特定格式的数据被称为协议数据单元(PDU)。同时,本层形成的PDU即为下一层的SDU。根据协议数据单元的数据的不同,送到接收端的指定层。
2.无线链路层控制层
无线链路层控制协议层(Radio Link Control,RLC)是GPRS/WCDMA/TD-SCDMA/LTE等无线通信系统中的无线链路控制层协议。RLC层位于MAC层之上,属于L2的一部分,为用户和控制数据提供分段和重传业务。每个RLC实体由RRC配置,并且根据业务类型有三种模式:透明模式(Transparentmode,TM)、非确认模式(Unacknowledged mode,UM)、确认模式(acknowledged mode,AM)。
RLC层位于PDCP层和MAC层之间。它通过服务接入点(Service access point,SAP)与PDCP层进行通信,并通过逻辑信道与MAC层进行通信。每个UE的每个逻辑信道都有一个RLC实体。RLC实体从PDCP层接收到的数据,或发往PDCP层的数据被称作RLC SDU(或PDCP PDU)。RLC实体从MAC层接收到的数据,或发往MAC层的数据被称作RLC PDU(或MAC SDU)。
3.分组数据汇聚协议层
分组数据汇聚协议层,负责执行IP头压缩,以减少无线接口必须传送的比特流量。属于无线接口协议栈的第二层,处理控制平面上的无线资源管理(RRC)消息。PDCP子层为上层RRC提供信令传输服务,并实现RRC信令的加密和一致性保护,以及在反方向上实现RRC信令的解密和一致性检查。
4.超帧号
在完整性保护和加密时使用的PDCP计数值是由数据包对应的HFN和PDCP SN两部分组成的。使用超帧号的目的是为了限制空口上传输序列号的比特数,当然,在终端设备和网络设备之间要保持HFN的同步。
图4是一种顺序递交模式下递交RLC PDU承载的PDCP PDU的一示意图。如图4所示,当网络设备配置终端设备的RLC层为顺序递交时,PDCP层为不做重排序处理。由于终端设备在RLC层做重排序处理,终端设备收到RLC SN=2的PDU后,在RLC层缓存;收到RLC SN=1的PDU后,也在RLC层缓存;直至收到RLC SN=0的PDU后,RLC层按照RLC SN的顺序将PDCP PDU递交给PDCP层。由于PDCP层配置为不做重排序处理, 因此,PDCP SN=0的PDU和PDCP SN=1的PDU可能会被丢弃。
图5是一种PDCP计数值的一示意图。PDCP计数值由HFN与SN组成。如图5所示,10比特SN的PDCP计数值由22比特的HFN和10比特的SN组成。其中,PDCP PDU中只携带SN。UE、eNB或gNB通过协议规定的算法获得HFN,将HFN和SN按照上述结构拼在一起就计算出了PDCP计数值。
图6是一种计算PDCP计数值的一示意图。如图6所示,假设PDCP SN的大小为下行PDCP SN比特大小,则,重排序窗口的大小等于2 下行PDCP SN比特大小-1。收到一个PDCP PDU之后,如果该PDCP PDU的SN落入图6中的阴影部分,则该PDCP PDU会被丢弃;如果该PDCP PDU的SN落入图6中当前维护的HFN的加1区间或减1区间,则该PDCP PDU的HFN取相应的值。最后,通过PDCP PDU相应的HFN的值与该PDCP PDU相应的SN计算PDCP计数值。
图7是一种计算PDCP计数值的另一示意图。如图7所示,假设PDCP SN的大小为下行传输的该PDCP的比特数,则,重排序窗口的大小等于2 下行PDCP SN比特大小-1。收到一个PDCP PDU之后,该PDCP PDU的SN落入图7中不同的区间,则该PDCP PDU的HFN取相应的值。最后,通过PDCP PDU相应的HFN的值与该PDCP PDU相应的SN计算PDCP计数值。
图8是一种计算PDCP计数值的另一示意图。如图8所示,假设PDCP SN的大小为下行传输的该PDCP的比特数,则,窗口的大小等于2 下行PDCP SN比特大小-1。收到一个PDCP PDU之后,如果该PDCP PDU的SN落入图8中的阴影部分,则该PDCP PDU会被丢弃;如果该PDCP PDU的SN落入图8中不同的区间,则该PDCP PDU的HFN取相应的值。最后,通过PDCP PDU相应的HFN的值与该PDCP PDU相应的SN计算PDCP计数值。
在图4与图6的两种计算PDCP计数值的过程中,只能维护一个当前的HFN,PDCP层收到的PDCP PDU的HFN只能在当前维护的HFN基础上进行加1或减1的操作。
图9是一种传递PDCP PDU的一示意图。如图9所示,当RLCSN的大小和PDCPSN的大小配置不恰当时(比如RLC SN的大小配置为10比特,PDCP SN的大小配置为12比特),RLC接收窗口内可能会同时存在多于两个HFN取值的PDCP PDU,当RLC层工作在乱序递交模式中,按照前述的三种计算PDCP计数值的方法,有部分PDCPPDU的PDCP计数值可能会出现计算错误的现象。
同时,现有协议中,当设备接收到指示以顺序递交方式处理RLC数据的RRC消息时,设备可以通过顺序递交的方式对RLC数据进行处理,并通过顺序递交的方式递交处理后的RLC数据。
具体地,当该RRC消息中包含的RLC配置字段,不存在RLC乱序递交的字段,即,不包含“rlc-OutOfOrderDelivery”字段,则表明该RRC信息指示以顺序递交方式处理RLC数据。当设备接收到该RRC信息之后,根据该RRC信息,通过顺序递交的方式对RLC数据进行处理。同时,在顺序递交的方式中,PDCP层不使用重排序功能。然而,在RRC信息之中,可以通过指示PDCP实体与RLC实体的对应关系,隐式指示PDCP层是否使用重排序功能。举例而言,当一个PDCP实体对应一个RLC实体,PDCP层则不使用重排序功能;当一个PDCP实体对应两个RLC实体,PDCP层则使用重排序功能。进一步地,当该RRC消息中,包括“rlc-BearerConfigSecondary-r15”字段,则表征一个PDCP实体对 应两个RLC实体,此时,PDCP层使用重排序功能;当不包括上述字段,则表征一个PDCP实体未对应两个RLC实体,此时,PDCP层不使用重排序功能。
综上所述,当设备接收到指示以顺序递交方式处理RLC数据的RRC信息之后,设备通过顺序递交的方式对RLC数据进行处理,可能导致短时间内RLC层向PDCP层突发递交大量的RLC数据;同时,如果设备通过乱序递交的方式对RLC数据进行处理,可能导致PDCP计数值的计算失误。因此,需要一种数据处理的方法,以解决上述问题。
应理解,在下述实施例中,为了不失一般性,第一设备可以是无线通信装置,第二设备可以是网络设备。
还应理解,在下述实施例中,为了不失一般性,RLC PDU可以是AMD PDU,也可以是UMD PDU,本申请在此不做限定。
本申请实施例提供的一种数据处理的方法1000的一示意性流程图。如图10所示,方法1000包括如下步骤。
S1001,第二设备向第一设备发送RRC消息。
示例地,第二设备可以向第一设备发送RRC消息,该RRC消息中包括第一RLC配置字段,该第一RLC配置字段用于指示第一设备以顺序递交方式处理RLC数据。进一步地,该RRC消息可以为RRC连接重配置消息或RRC连接重建立消息。
具体地,第二设备可以向第一设备发送RRC消息,该RRC消息包括指示第一设备以顺序递交方式处理RLC数据的第一RLC配置字段。进一步地,第一RLC配置字段可以不携带表征以乱序递交方式处理RLC数据的字段,从而间接地指示以顺序递交方式处理RLC数据。可选地,第一RLC配置字段可以不携带“rlc-OutOfOrderDelivery-r15”字段,即,指示无线通信装置通过乱序递交方式处理RLC数据的字段,从而间接指示无线通信装置通过顺序递交方式处理RLC数据。其中,乱序递交方式不同于第一RLC配置字段指示的顺序递交方式。
此外,也可以通过第一RLC配置字段携带表征RLC顺序递交的字段,或通过第一RLC配置字段携带表征不通过RLC乱序递交的字段,以指示通过第一设备以顺序递交方式处理RLC数据,本申请在此不做限定。
进一步地,由于在顺序递交的方式中,第一设备不使用PDCP重排序功能,所以该RRC消息还包括PDCP配置字段,该PDCP配置字段和第一RLC配置字段用于指示第一设备不使用PDCP重排序。
具体地,可以通过RRC消息包括PDCP配置字段和第一RLC配置字段,不包括第二RLC配置字段,表征一个PDCP实体对应一个RLC实体,间接地指示第一设备不使用PDCP重排序。其中,第二RLC配置字段可以通过指示一个PDCP实体对应两个RLC实体,间接地指示第一设备使用PDCP重排序。进一步地,第二RLC配置字段可以为“rlc-BearerConfigSecondary-r15”。从而,当RRC消息中不包括间接指示第一设备使用PDCP重排序功能的第二RLC配置字段时,该RRC消息可以指示第一设备不使用PDCP重排序功能。
此外,可以通过RRC消息中携带第三RLC配置字段,以指示一个PDCP实体对应一个RLC实体,其中,第三RLC配置字段为用于指示一个PDCP实体不对应两个RLC实体。
进一步地,当PDCP配置字段指示的PDCP序列号的窗口大小为12个比特时,第一设备可以维护至少一个大于12个比特PDCP序列号的窗口,该至少一个大于12个比特PDCP序列号的窗口用于使能PDCP重排序功能。
具体地,为了避免配置的PDCP序列号的窗口的SN过小的现象,可以通过将PDCP序列号的窗口的SN的大小设置为15个比特或18个比特,从而缓解当PDCP序列号的窗口的SN的大小配置不合理,以及PDCP层使能了重排序时,不能更好地支持对更大范围的PDCP计数值进行重排序的问题。
应理解,当PDCP配置字段指示的PDCP序列号的窗口大小为18个比特时,则不用再对PDCP序列号的窗口的SN的大小进行更改。
通过将PDCP序列号的窗口的SN的大小设置为18比特,可以缓解当PDCP序列号的窗口的SN的大小配置不合理,以及PDCP层使能了重排序时,不能更好地支持对更大范围的PDCP计数值进行重排序的问题。
应理解,在上述方案中,顺序递交的方式可以为:根据接收到的RLC PDU集合中RLC PDU的SN依次递交各RLC PDU承载的PDCP PDU,同时,如果有的RLC PDU承载了分段的PDCP PDU,可以与相邻的RLC PDU承载的PDCP PDU重组成为一个完整的PDCP PDU,再将其进行递交。乱序递交的方式可以为:当接收一个RLC PDU承载了完整的PDCP PDU之时,重组并递交该完整的PDCP PDU;当该RLC PDU承载的是分段的PDCP PDU之时,可以在缓存区进行缓存,如果该RLC PDU可以与相邻的RLC PDU重组为一个完整的PDCP PDU,则重组之后再完成递交PDCP PDU。
S1002,第一设备以乱序递交方式处理RLC数据。
示例地,第一设备在接收第二设备发送的RRC消息之后,可以以乱序递交方式处理RLC数据。
具体地,例如,当第一设备的RLC层接收到承载的PDCP PDU的SN为0,SN为2的RLC PDU时,RLC层可以将被承载的SN为0的PDCP PDU递交至PDCP层,当RLC层接收到承载的PDCP PDU的SN为1,SN为1的RLC PDU时,RLC层可以将被承载的SN为1的PDCP PDU递交至PDCP层,而不是通过上述的其他模式,即,将上述两个RLC PDU缓存至RLC层中,之后按照RLC PDU的SN的顺序,依次分别递交上述RLC PDU承载的PDCP PDU。
应理解,第一设备可以在接收RRC消息之后,以乱序递交方式处理RLC PDU集合中的RLC PDU;也可以在没有RRC消息的情况下,以乱序递交方式处理RLC PDU集合中的RLC PDU,本申请在此不做限定。
基于上述方案,当第一设备接收了包括指示以顺序递交方式处理RLC数据的第一RLC配置字段的RRC消息时,即,未指示第一设备以乱序递交方式处理RLC数据,第一设备仍然以乱序递交方式处理RLC数据,即,当接收一个承载完整的PDCP PDU的RLC PDU时,递交该完整的PDCP PDU;并且,如果该RLC PDU承载的是分段的PDCP PDU,可以在缓存区进行缓存,当该RLC PDU可以与相邻的RLC PDU重组为一个完整的PDCP PDU,则重组之后再完成递交PDCP PDU。由此,对于RLC PDU承载的完整的PDCP PDU,可以直接进行解密,减少一写一读,节省DDR带宽;同时,相较于顺序递交方式,也避免了在短时间内向PDCP层突发递交大量的PDCP PDU的现象,更便于实现。
进一步地,第一设备可以使用PDCP重排序,使得PDCP层对已收到的PDCP PDU进行重排序。
通常情况下,当第一设备接收到间接指示不使用PDCP重排序的RRC消息之后,即,RRC消息中不包括第二RLC配置字段,未携带表征一个PDCP实体对应两个RLC实体的字段,第一设备不进行PDCP重排序。但是,在本实施例中,第一设备即使接收了指示不使用PDCP重排序的RRC消息,依然使用PDCP重排序。由此,当RLC层未进行重排序时,PDCP层进行了重排序的操作,可以改善应用层收到的数据包出现乱序的现象。
具体地,当第一设备按照乱序模式递交RLC PDU集合中的RLC PDU承载的PDCP PDU时,RLC层并未进行重排序,所以,此时需要PDCP层进行重排序。图11是本申请实施例提出的数据递交的方法的一示意图。如图11所示,当下述RLC PDU均属于RLC PDU集合时,第一设备接收到SN为2,承载的PDCP PDU的SN为0的RLC PDU,就将被承载的PDCP PDU递交至PDCP层;收到SN为1,承载的PDCP PDU的SN为1的RLC PDU,就将被承载的PDCP PDU递交至PDCP层;以及收到SN为0,承载的PDCP PDU的SN为2的RLC PDU,就将被承载的PDCP PDU递交至PDCP层。随后,使用PDCP重排序功能进行处理,即,得到了按SN序号由小至大的按序的PDCP PDU。
应理解,在本实施例中,无论RRC消息指示一个PDCP实体对应一个RLC实体,还是一个PDCP实体对应两个RLC实体,第一设备均使用PDCP重排序。
基于上述方案,当第一设备接收到指示不使用PDCP重排序,即,一个PDCP实体对应一个RLC实体的RRC消息之后,并未不使用重排序,而是使用了PDCP重排序。由此,当RLC层未进行重排序时,PDCP层进行了重排序的操作,可以改善应用层收到的数据包出现乱序的现象。
S1003,第一设备维护多个HFN数据。
示例地,第一设备可以维护多个HFN数据,其中,该多个HFN数据用于使能以该乱序递交方式处理RLC数据。进一步地,多个HFN数据对应一个DRB,多个HFN数据中的每个HFN数据均包括HFN数据,以及HFN数据对应的PDCP序列号数据和RLC序列号数据。
举例而言,第一设备可以根据RLC PDU集合中的RLC PDU确定目标队列的HFN节点的参数,目标队列的每个HFN节点的参数可以包括:
PDCP的起始SN和末尾SN、RLC的起始SN和末尾SN,以及HFN的序号。
具体地,第一设备可以根据参数集中的至少一个参数,确定目标队列的节点的参数,上述参数集包括以下至少一个参数:第t个RLC PDU的SN、第t个RLC PDU承载的PDCP PDU的SN、PDCP窗口未递交且仍在等待的PDCP SDU的计数值(RX_DELIV),以及预设参数,其中,为了便于理解,第t个RLC PDU为RLC PDU集合中的任一RLC PDU,预设参数为PDCP窗口的SN的大小,该参数可以为配置的参数。
在可能实现的一种方式中,当目标队列为空队列时,根据包括参数集的至少一个参数确定该第t个RLC PDU承载的PDCP PDU的HFN序号,并在目标队列中新增一个节点,确定该新增的节点的HFN的序号为该第t个RLC PDU承载的PDCP PDU的HFN序号、该新增的节点的PDCP的起始SN为0、该新增的节点的PDCP的末尾SN为该第t个RLC PDU承载的PDCP PDU的SN,以及确定该新增的节点的RLC的起始SN与末尾SN均为 该第t个RLC PDU的SN。
在可能实现的另一种方式中,当该目标队列存在至少一个节点时,根据第t个RLC PDU的SN依次与该目标序列中的节点的RLC的起始SN与末尾SN进行判断,基于该判断的结果,根据该参数集确定目标队列的节点的参数。
举例来说,当判断的结果为第t个RLC PDU的SN在该目标队列的尾节点的RLC的起始SN与末尾SN之间,在满足第一预设条件的情况下,在目标队列的尾节点之后新增一个节点,并根据该参数集以及该目标队列的尾节点的HFN序号确定该新增的节点的参数,其中,该第一预设条件为该第t个RLC PDU承载的PDCP PDU的SN小于该目标队列的尾节点的PDCP的末尾SN,且该目标队列的尾节点的PDCP的末尾SN与该第t个RLC PDU承载的PDCP PDU的SN的差值大于2 预设参数-1
进一步地,确定该新增的节点的PDCP的末尾SN为该第t个RLC PDU承载的PDCP PDU的SN、该新增的节点的RLC的起始SN与末尾SN均为该第t个RLC PDU的SN,以及确定该新增的节点的HFN序号为该目标队列的尾节点的HFN序号+1。
举例来说,当该判断的结果为该第t个RLC PDU的SN在该目标队列的尾节点的RLC的起始SN与末尾SN之间,在不满足第一预设条件的情况下,确定该目标队列的尾节点的RLC的末尾SN为该第t个RLC PDU的SN;以及,当该第t个RLC PDU承载的PDCP PDU的SN大于该目标队列的尾节点的PDCP的末尾SN时,确定该目标队列的尾节点的PDCP的末尾SN为该第t个RLC PDU承载的PDCP PDU的SN。
举例来说,当该判断的结果为该第t个RLC PDU的SN不在该目标队列的尾节点的RLC PDU的起始SN与末尾SN之间,在该第t个RLC PDU的SN低于该目标队列的尾节点的RLC PDU的起始SN的情况下,确定该目标队列的尾节点的RLC的起始SN为该第t个RLC PDU的SN。
举例来说,当该判断的结果为该第t个RLC PDU的SN高于该目标队列的第n个节点的RLC PDU的末尾SN,该第n个节点不为该尾结点,在满足第二预设条件的情况下,根据该第t个RLC PDU的SN与该目标序列的第n+1个节点的RLC PDU的起始SN进行判断,如果该第t个RLC PDU的SN高于目标队列的第n+1个节点的RLC PDU的起始SN,且该第t个RLC PDU的SN低于第一状态变量的值,则选取该节点的下一个节点进行判断。其中,该第二预设条件为该第t个RLC PDU的SN高于该目标序列的第n+1个节点的RLC PDU的末尾SN,且该第t个RLC PDU的SN低于第一状态变量的值。
举例来说,当该判断的结果为该第t个RLC PDU的SN高于该目标队列的第n个节点的RLC PDU的末尾SN,该第n个节点不为该尾结点,在不满足第一预设条件与第二预设条件的情况下,确定该目标队列的第n个节点的RLC的末尾SN为该第t个RLC PDU的SN;当该第t个RLC PDU承载的PDCP PDU的SN大于该目标队列的第n个节点的PDCP的末尾SN时,进一步地,确定该目标队列的第n个节点的PDCP末尾SN为该第t个RLC PDU承载的PDCP PDU的SN。
举例来说,当该判断的结果为该第t个RLC PDU的SN高于该目标队列的第n个节点的RLC PDU的末尾SN,该第n个节点不为该尾结点,在满足第一预设条件,且不满足第二预设条件的情况下,确定该目标队列的第n+1个节点的RLC的起始SN为该第t个RLC PDU的SN;当该第t个RLC PDU承载的PDCP PDU的SN大于该目标队列的第n+1 个节点的PDCP的末尾SN时,确定该目标队列的第n+1个节点的PDCP末尾SN为该第t个RLC PDU承载的PDCP PDU的SN。
举例来说,当该判断的结果为该第t个RLC PDU的SN等于或低于该目标队列的第n个节点的RLC PDU的末尾SN,该第n个节点不为该尾结点,当该第t个RLC PDU的SN高于该目标队列的第n个节点的RLC PDU的起始SN,确定该目标队列的第n个节点的RLC的起始SN为该第t个RLC PDU的SN。
S1004,第一设备确定RLC PDU集合中的RLC PDU承载的PDCP PDU的PDCP计数值。
示例地,在确定目标队列的节点的参数之后,第一设备可以根据RLC PDU集合中的RLC PDU对应的目标队列的节点的参数与RLC PDU集合中的RLC PDU承载的PDCP PDU的SN,确定该RLC PDU集合中的RLC PDU承载的PDCP PDU的PDCP计数值。
具体地,第一设备可以通过将该RLC PDU集合中的RLC PDU对应的该目标队列的节点的HFN的序号移至高位,与该RLC PDU集合中的RLC PDU承载的PDCP PDU的SN进行或运算,确定该RLC PDU集合中的RLC PDU承载的PDCP PDU的PDCP计数值。
例如,第一设备可以通过将第t个RLC PDU对应的目标队列中的节点的HFN的序号移至高位,与该第t个RLC PDU承载的PDCP PDU的SN进行或运算,从而确定该第t个RLC PDU承载的PDCP PDU的PDCP计数值。
基于上述方案,通过引入目标队列中的HFN节点,根据RLC PDU集合中的RLC PDU确定目标队列中每个HFN节点的参数信息,每个HFN节点的参数信息包括:PDCP的起始SN和末尾SN、RLC的起始SN和末尾SN,以及HFN的序号;最后,通过将该RLC PDU集合中的RLC PDU对应的该目标队列的HFN节点的HFN的序号移至高位,与该RLC PDU集合中的RLC PDU承载的PDCP PDU的SN进行或运算,确定该RLC PDU集合中的RLC PDU承载的PDCP PDU的PDCP计数值。由此,可以避免在通过乱序递交的过程中导致的PDCP计数值计算失误的问题,提高了计算PDCP计数值的准确性。
应理解,在上述方案之中,RLC PDU集合中的RLC PDU的SN均在第一SN范围之内,第一SN范围根据第一状态变量VR(H)或VR(UH)与第二状态变量VR(R)或VR(UR)确定,该第一状态变量用于指示RLC窗口中当前已接收的最高的序列号SN对应的RLC PDU的下一个RLC PDU的SN,该第二状态变量用于指示该RLC窗口中按顺序全部已接收的最后一个AMD PDU之后一个RLC PDU的SN值或最早的考虑进行重新排序的UMD PDU的SN值,其中,第一状态变量的变化在预设的最大变化范围之内。图12为本申请实施例提出的一种预设的最大的变化范围的一示意图。如图12所示,通过限定第一状态变量的预设的最大的变化范围为8,则第一状态变量的预设的最大的变化范围在SN为6至14的范围内,使得第一状态变量的跳变无法达到SN的值大于14的范围。
进一步地,上述预设的最大变化范围可以根据PDCP窗口的大小与RLC PDU集合中的RLC PDU承载的PDCP PDU的数量确定,例如,该预设的最大变化范围可以为PDCP窗口的大小与RLC PDU集合中的RLC PDU承载的PDCP PDU的数量的比值,其中,PDCP窗口的大小是根据PDCP窗口的SN的大小确定的。
通过确定上述预设的最大变化范围,即,通过PDCP序列号的窗口的SN的大小与该RLC PDU集合中的RLC PDU承载的PDCP PDU的数量确定预设的最大变化范围,可以 限制预设的最大变化范围,使得预设的最大变化范围不超过PDCP窗口的范围,避免第一状态变量的跳变范围过大,而导致计算PDCP计数值不准确的问题。
可以理解的是,上述方法实施例中,由终端设备实现的方法和操作,也可以由可用于终端设备的部件(例如芯片或者电路)实现,由网络设备实现的方法和操作,也可以由可用于网络设备的部件(例如芯片或者电路)实现。
以上,结合图10至图12详细说明了本申请实施例提供的方法。以下,结合图11至图14详细说明本申请实施例提供的通信装置。应理解,装置实施例的描述与方法实施例的描述相互对应,因此,未详细描述的内容可以参见上文方法实施例,为了简洁,这里不再赘述。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是,各个网元,例如发射端设备或者接收端设备,为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。下面以采用对应各个功能划分各个功能模块为例进行说明。
图13是本申请实施例提供的通信装置的示意性框图。该通信装置1300包括接收模块1310和处理模块1320。接收模块1310可以实现相应的通信功能,处理模块1310用于进行数据处理。接收模块1310还可以称为通信接口或通信模块。
可选地,该通信装置1300还可以包括存储模块,该存储模块可以用于存储指令和/或数据,处理模块1320可以读取存储模块中的指令和/或数据,以使得通信装置实现前述方法实施例。
该通信装置1300可以用于执行上文方法实施例中第一设备所执行的动作,这时,该通信装置1300可以为第一设备或者可配置于第一设备的部件,接收模块1310用于执行上文方法实施例中第一设备侧的接收相关的操作,处理模块1320用于执行上文方法实施例中第一设备侧的处理相关的操作。
或者,该通信装置1300可以用于执行上文方法实施例中第二设备所执行的动作,这时,该通信装置1300可以为第二设备或者可配置于第二设备的部件,接收模块1310用于执行上文方法实施例中第二设备侧的收发相关的操作,处理模块1320用于执行上文方法实施例中第二设备侧的处理相关的操作。
作为一种设计,该通信装置1300用于执行上文图10所示实施例中第一设备所执行的动作,接收模块1310用于:S1001;处理模块1320用于:S1002至S1004。
该通信装置1300可实现对应于根据本申请实施例的方法1000中的第一设备执行的步 骤或者流程,该通信装置1300可以包括用于执行图10中的方法1000中的第一设备执行的方法的模块。并且,该通信装置1300中的各模块和上述其他操作和/或功能分别为了实现图10中的方法1000的相应流程。
其中,当该通信装置1300用于执行图10中的方法1000中的第一设备时,接收模块1310可用于执行方法1000中的步骤1001,处理模块1320可用于执行方法1000中的步骤1002至1004。
应理解,各模块执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
作为另一种设计,通信装置1300用于执行上文图10所示实施例中第二设备所执行的动作,接收模块1310用于S1001。
该通信装置1300可实现对应于根据本申请实施例的方法1000中的第二设备执行的步骤或者流程,该通信装置1300可以包括用于执行图10中的方法1000中的第二设备执行的方法的模块。并且,该通信装置1300中的各模块和上述其他操作和/或功能为了实现图10中的方法1000的相应流程。
其中,当该通信装置1300用于执行图10中的方法1000时,接收模块1310可用于执行方法1000中的步骤1001。
上文实施例中的处理模块1320可以由至少一个处理器或多核处理器或处理核或处理器相关电路实现。接收模块1310可以由接收器或收发器或接收器相关电路实现。接收模块1310还可称为通信模块或通信接口。存储模块可以通过至少一个存储器实现。
如图14所示,本申请实施例还提供一种通信装置1400。该通信装置1400包括处理器1410,处理器1410与存储器1420耦合,存储器1420用于存储计算机程序或指令和/或数据,处理器1410用于执行存储器1420存储的计算机程序或指令和/或数据,使得上文方法实施例中的方法被执行。
可选地,该通信装置1400包括的处理器1410为一个或多个。
可选地,如图14所示,该通信装置1400还可以包括存储器1420。
可选地,该通信装置1400包括的存储器1420可以为一个或多个。
可选地,该存储器1420可以与该处理器1410集成在一起,或者分离设置。
可选地,如图14所示,该通信装置1400还可以包括收发器1430,收发器1430用于信号的接收和/或发送。例如,处理器1410用于控制收发器1430进行信号的接收和/或发送。
作为一种方案,该通信装置1400用于实现上文方法实施例中由第一设备执行的操作。
例如,处理器1410用于实现上文方法实施例中由第一设备执行的处理相关的操作,收发器1430用于实现上文方法实施例中由第一设备执行的收发相关的操作。
作为另一种方案,该通信装置1400用于实现上文方法实施例中由第二设备执行的操作。
例如,处理器1410用于实现上文方法实施例中由第二设备执行的处理相关的操作,收发器1430用于实现上文方法实施例中由第二设备执行的收发相关的操作。
本申请实施例还提供一种通信装置1500,该通信装置1500可以是第一设备也可以是芯片。该通信装置1500可以用于执行上述方法实施例中由第一设备所执行的操作。
当该通信装置1500为第一设备时,图15示出了一种简化的第一设备的结构示意图。如图15所示,第一设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理,以及对第一设备进行控制,执行软件程序,处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是,有些种类的第一设备可以不具有输入输出装置。
当需要发送数据时,处理器对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到第一设备时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器,处理器将基带信号转换为数据并对该数据进行处理。为便于说明,图15中仅示出了一个存储器和处理器,在实际的第一设备产品中,可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置,也可以是与处理器集成在一起,本申请实施例对此不做限制。
在本申请实施例中,可以将具有收发功能的天线和射频电路视为第一设备的接收模块,将具有处理功能的处理器视为第一设备的处理模块。
如图15所示,终端设备包括接收模块1510和处理模块1520。接收模块1510也可以称为接收器、收发器、接收电路、收发机、收发装置等。处理模块1520也可以称为处理器,多核处理器,处理核,处理电路,处理单板,处理模块、处理装置等。
可选地,可以将接收模块1510中用于实现接收功能的器件视为接收模块,将接收模块1510中用于实现发送功能的器件视为发送模块,即接收模块1510包括接收模块和发送模块。接收模块有时也可以称为接收器、收发器、接收电路、收发机、收发装置等。发送模块有时也可以称为发射机、发射器或者发射电路等。
例如,在一种实现方式中,处理模块1520用于执行图10中第一设备的处理动作。例如,处理模块1520用于执行图10中的步骤1002至1004中的处理步骤;接收模块1510用于执行图10中的步骤1001中的收发操作。
应理解,图15仅为示例而非限定,上述包括接收模块和处理模块的第一设备可以不依赖于图15所示的结构。
当该通信装置1500为芯片时,该芯片包括接收模块和处理模块。其中,接收模块可以是输入输出电路或通信接口;处理模块可以为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种通信装置1600,该通信装置1600可以是第二设备也可以是芯片。该通信装置1600可以用于执行上述方法实施例中由网络设备所执行的操作。
当该通信装置1600为第二设备时,例如为基站。图16示出了一种简化的基站结构示意图。基站包括1610部分以及1620部分。1610部分主要用于射频信号的收发以及射频信号与基带信号的转换;1620部分主要用于基带处理,对基站进行控制等。1610部分通常可以称为收发模块、收发机、收发电路、或者收发器等。1620部分通常是基站的控制中心,通常可以称为处理模块,用于控制基站执行上述方法实施例中网络设备侧的处理操 作。
1610部分的收发模块,也可以称为收发机或收发器等,其包括天线和射频电路,其中射频电路主要用于进行射频处理。可选地,可以将1610部分中用于实现接收功能的器件视为接收模块,将用于实现发送功能的器件视为发送模块,即1610部分包括接收模块和发送模块。接收模块也可以称为接收机、接收器、或接收电路等,发送模块可以称为发射机、发射器或者发射电路等。
1620部分可以包括一个或多个单板,每个单板可以包括一个或多个处理器和一个或多个存储器。处理器用于读取和执行存储器中的程序以实现基带处理功能以及对基站的控制。若存在多个单板,各个单板之间可以互联以增强处理能力。作为一种可选的实施方式,也可以是多个单板共用一个或多个处理器,或者是多个单板共用一个或多个存储器,或者是多个单板同时共用一个或多个处理器。
例如,在一种实现方式中,1610部分的收发模块用于执行图4所示实施例中由网络设备执行的收发相关的步骤;1620部分用于执行图4所示实施例中由网络设备执行的处理相关的步骤。
例如,在又一种实现方式中,1610部分的收发模块用于执行图5所示实施例中由网络设备执行的收发相关的步骤;1620部分用于执行图5所示实施例中由网络设备执行的处理相关的步骤。
应理解,图16仅为示例而非限定,上述包括收发模块和处理模块的网络设备可以不依赖于图16所示的结构。
当该通信装置1600为芯片时,该芯片包括收发模块和处理模块。其中,收发模块可以是输入输出电路、通信接口;处理模块为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种计算机可读存储介质,其上存储有用于实现上述方法实施例中由终端设备执行的方法,或由网络设备执行的方法的计算机指令。
例如,该计算机程序被计算机执行时,使得该计算机可以实现上述方法实施例中由终端设备执行的方法,或由网络设备执行的方法。
本申请实施例还提供一种包含指令的计算机程序产品,该指令被计算机执行时使得该计算机实现上述方法实施例中由终端设备执行的方法,或由网络设备执行的方法。
本申请实施例还提供一种通信系统,该通信系统包括上文实施例中的网络设备与终端设备。
所属领域的技术人员可以清楚地了解到,为描述方便和简洁,上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例,此处不再赘述。
在本申请实施例中,终端设备或网络设备可以包括硬件层、运行在硬件层之上的操作系统层,以及运行在操作系统层上的应用层。其中,硬件层可以包括中央处理器(central processing unit,CPU)、内存管理模块(memory management unit,MMU)和内存(也称为主存)等硬件。操作系统层的操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统,例如,Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。应用层可以包含浏览器、通讯录、文字处理软件、即时通信软件等应用。
本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构进行特别限定,只要能够通过运行记录有本申请实施例提供的方法的代码的程序,以根据本申请实施例提供的方法进行通信即可。例如,本申请实施例提供的方法的执行主体可以是终端设备或网络设备,或者,是终端设备或网络设备中能够调用程序并执行程序的功能模块。
本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本文中使用的术语“制品”可以涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。
其中,计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质(或者说计算机可读介质)例如可以包括但不限于:磁性介质或磁存储器件(例如,软盘、硬盘(如移动硬盘)、磁带)、光介质(例如,光盘、压缩盘(compact disc,CD)、数字通用盘(digital versatile disc,DVD)等)、智能卡和闪存器件(例如,可擦写可编程只读存储器(erasable programmable read-only memory,EPROM)、卡、棒或钥匙驱动器等)、或者半导体介质(例如固态硬盘(solid state disk,SSD)等、U盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)等各种可以存储程序代码的介质。
本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可以包括但不限于:无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
应理解,本申请实施例中提及的处理器可以是中央处理模块(central processing unit,CPU),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或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)。例如,RAM可以用作外部高速缓存。作为示例而非限定,RAM可以包括如下多种形式:静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
需要说明的是,当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时,存储器(存储模块)可以集成在处理器中。
还需要说明的是,本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅是示意性的,例如,上述模块的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个模块或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。此外,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或模块的间接耦合或通信连接,可以是电性,机械或其它的形式。
上述作为分离部件说明的模块可以是或者也可以不是物理上分开的,作为模块显示的部件可以是或者也可以不是物理模块,即可以位于一个地方,或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块实现本申请提供的方案。
另外,在本申请各个实施例中的各功能模块可以集成在一个模块中,也可以是各个模块单独物理存在,也可以两个或两个以上模块集成在一个模块中。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。
当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。例如,计算机可以是个人计算机,服务器,或者网络设备等。计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。关于计算机可读存储介质,可以参考上文描述。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求和说明书的保护范围为准。

Claims (20)

  1. 一种数据处理方法,其特征在于,包括:
    无线通信装置接收来自基站的无线资源控制RRC消息,所述RRC消息中包括第一无线链路控制RLC配置字段,所述第一RLC配置字段用于指示以顺序递交方式处理RLC数据;
    所述无线通信装置以乱序递交方式处理RLC数据,其中,所述乱序递交方式不同于所述第一RLC配置字段指示的顺序递交方式。
  2. 根据权利要求1所述的方法,其特征在于,所述第一RLC配置字段用于指示以顺序递交方式处理RLC数据,包括:
    所述第一RLC配置字段中未携带RLC乱序递交字段,所述RLC乱序递交字段用于指示以乱序递交方式处理RLC数据。
  3. 根据权利要求1或2所述的方法,其特征在于,所述RRC消息中还包括分组数据汇聚协议PDCP配置字段,所述PDCP配置字段和所述第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体,所述方法还包括:
    所述无线通信装置使用PDCP重排序功能。
  4. 根据权利要求3所述的方法,其特征在于,所述PDCP配置字段和所述第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体,包括:
    所述RRC消息中未携带第二RLC配置字段。
  5. 根据权利要求1至4中任一项所述的方法,其特征在于,所述RRC消息为RRC连接重配置消息或RRC连接重建立消息。
  6. 根据权利要求1至5中任一项所述的方法,其特征在于,所述方法还包括:
    所述无线通信装置维护多个超帧号HFN数据,其中,所述多个HFN数据用于使能以所述乱序递交方式处理RLC数据。
  7. 根据权利要求6所述的方法,其特征在于,所述多个HFN数据对应一个数据无线承载DRB,所述多个HFN数据中的每个HFN数据均包括HFN数据,以及所述HFN数据对应的PDCP序列号数据和RLC序列号数据。
  8. 根据权利要求6或7所述的方法,其特征在于,所述PDCP配置字段指示的PDCP序列号的窗口大小为12个比特,所述方法还包括:
    所述无线通信装置维护至少一个大于12个比特PDCP序列号的窗口,所述至少一个大于12个比特PDCP序列号的窗口用于使能所述PDCP重排序功能。
  9. 一种无线通信装置,其特征在于,包括:
    接收模块,用于接收来自基站的RRC消息,所述RRC消息中包括第一RLC配置字段,所述第一RLC配置字段用于指示以顺序递交方式处理RLC数据;
    处理模块,用于以乱序递交方式处理RLC数据,其中,所述乱序递交方式不同于所述第一RLC配置字段指示的顺序递交方式。
  10. 根据权利要求9所述的装置,其特征在于,所述第一RLC配置字段用于指示以顺序递交方式处理RLC数据,包括:
    所述第一RLC配置字段中未携带RLC乱序递交字段,所述RLC乱序递交字段用于 指示以乱序递交方式处理RLC数据。
  11. 根据权利要求9或10所述的装置,其特征在于,所述RRC消息中还包括PDCP配置字段,所述PDCP配置字段和所述第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体;
    所述处理模块,还用于使用PDCP重排序功能。
  12. 根据权利要求11所述的装置,其特征在于,所述PDCP配置字段和所述第一RLC配置字段用于指示一个PDCP实体对应一个RLC实体,包括:
    所述RRC消息中未携带第二RLC配置字段。
  13. 根据权利要求9至12中任一项所述的装置,其特征在于,所述RRC消息为RRC连接重配置消息或RRC连接重建立消息。
  14. 根据权利要求9至13中任一项所述的装置,其特征在于,所述处理模块还用于:
    维护多个超帧号HFN数据,其中,所述多个HNF数据用于使能以所述乱序递交方式处理RLC数据。
  15. 根据权利要求14所述的装置,其特征在于,所述多个HFN数据对应一个DRB,所述多个HFN数据中的每个HFN数据均包括HFN数据,以及所述HFN数据对应的PDCP序列号数据和RLC序列号数据。
  16. 根据权利要求14或15所述的装置,其特征在于,所述PDCP配置字段指示的PDCP序列号的窗口大小为12个比特;
    所述处理模块,还用于维护至少一个大于12个比特的PDCP序列号的窗口,所述至少一个大于12个比特PDCP序列号的窗口用于使能所述PDCP重排序功能。
  17. 一种通信装置,其特征在于,包括:
    存储器,用于存储计算机指令;
    处理器,用于执行所述存储器中存储的计算机指令,使得所述通信装置执行如权利要求1至8中任一项所述的方法。
  18. 一种计算机可读存储介质,其特征在于,其上存储有计算机程序,所述计算机程序被通信装置执行时,使得所述通信装置执行如权利要求1至8中任一项所述的方法。
  19. 一种计算机程序产品,其特征在于,所述计算机程序产品包括用于执行如权利要求1至8中任一项所述的方法的指令。
  20. 一种芯片,其特征在于,所述芯片包括处理器与数据接口,所述处理器通过所述数据接口读取存储器上存储的指令,以执行如权利要求1至8中任一项所述的方法。
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