WO2019223500A1 - 无线回程节点的适配层的处理方法以及适配层 - Google Patents

无线回程节点的适配层的处理方法以及适配层 Download PDF

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Publication number
WO2019223500A1
WO2019223500A1 PCT/CN2019/084910 CN2019084910W WO2019223500A1 WO 2019223500 A1 WO2019223500 A1 WO 2019223500A1 CN 2019084910 W CN2019084910 W CN 2019084910W WO 2019223500 A1 WO2019223500 A1 WO 2019223500A1
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Prior art keywords
node
wireless backhaul
data packet
backhaul node
bearer
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PCT/CN2019/084910
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English (en)
French (fr)
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刘亮
马慧
陈卓
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Priority to EP19807882.6A priority Critical patent/EP3799380A4/en
Priority to US17/057,210 priority patent/US11490288B2/en
Publication of WO2019223500A1 publication Critical patent/WO2019223500A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/03Protocol definition or specification 
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40Network security protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0252Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/047Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations

Definitions

  • Embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a method for processing an adaptation layer of a wireless backhaul node and an adaptation layer of a wireless backhaul node.
  • 3rd Generation Partnership Project (3GPP) in the fourth generation Mobile communication (fourth generation, 4G) long-term evolution (LTE) defines a relay-based architecture and process.
  • 5G fifth generation
  • LTE Long Term Evolution
  • IAB Integrated Access and Backhaul
  • 3GPP is conducting research on 5G Integrated Access and Backhaul (IAB).
  • Figure 2 shows the IAB framework.
  • the IAB architecture can be divided into the following two categories: L2 relay and L3 relay.
  • the L3 relay architecture is similar to the standardized relay architecture in LTE.
  • the newly defined centralized unit-distribution unit (CU- DU) architecture and therefore received more discussion.
  • a typical L2 relay architecture is shown in Figure 3.
  • the IAB node does not have a complete protocol stack, but only has the function of DU.
  • the F1 backhaul of the relay node is inherited on the new wireless (New Radio, NR) air interface link of the wireless backhaul, which requires adaptation. Only the layer can transmit F1 back to the multi-level IAB node for transmission.
  • New Radio, NR New Radio
  • An object of the embodiments of the present disclosure is to provide a processing method and an adaptation layer of an adaptation layer of a wireless backhaul node, so as to solve the problem of function definition of the adaptation layer of a wireless backhaul node.
  • a method for processing an adaptation layer of a wireless backhaul node is provided.
  • the adaptation layer of the wireless backhaul node determines the first node that will send the received first data packet
  • the adaptation layer of the wireless backhaul node maps the first data packet to a first bearer between the wireless backhaul node and the first node;
  • the first node is one or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the first node is one or more of the wireless backhaul nodes.
  • processing method further includes:
  • the adaptation layer of the wireless backhaul node recovers the data sent by the second node according to the received data and sequence number, wherein the second node is one or more downstream wireless backhaul nodes of the wireless backhaul node or UE accessing the wireless backhaul node; or, the second node is one or more upstream wireless backhaul nodes or donor nodes of the wireless backhaul node.
  • the sequence number is configured by an adaptation layer of the second node, or the sequence number is a PDU sequence number in a PDCP PDU sent by the multiplexing UE.
  • the header information of the adaptation layer of the wireless backhaul node includes one or more of the following combinations:
  • a method for transmitting a wireless backhaul node including:
  • a wireless backhaul node receives a second data packet sent by one or more second nodes
  • the second node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node
  • the third node is an upstream wireless backhaul node or a donor node of the wireless backhaul node.
  • the second node is an upstream wireless backhaul node or a donor node of the wireless backhaul node
  • the third node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node.
  • the determining, by the wireless backhaul node, a second bearer between the wireless backhaul node and a third node includes:
  • the wireless backhaul node determines a second bearer between the wireless backhaul node and a third node according to quality of service QoS information of bearers of one or more UEs.
  • the second data packet includes a fourth data packet and a fifth data packet, wherein the fourth data packet is the upstream wireless backhaul node or the donor node or the downstream wireless backhaul node of the second node Sent, the fifth data packet is sent by a UE accessing the second node;
  • the determining, by the wireless backhaul node, a third data packet according to the second data packet includes:
  • the wireless backhaul node maps a fourth data packet and a sixth data packet into a third data packet
  • the wireless backhaul node maps a fourth data packet, a fifth data packet, and a sixth data packet into a third data packet;
  • the sixth data packet is a data packet sent by a UE accessing the wireless backhaul node.
  • the header information of the second data packet or the header information of the third data packet includes one or more of the following combinations:
  • an adaptation layer of a wireless backhaul node including:
  • a first determining module configured to determine a first node to send a received first data packet
  • a first sending module configured to map the first data packet to a first bearer between the wireless backhaul node and a first node;
  • the first node is one or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the first node is one or more of the wireless backhaul nodes.
  • the adaptation layer of the wireless backhaul node further includes: a recovery module, configured to recover and receive data sent by the second node according to the received data and the serial number, wherein the second node is the wireless One or more downstream wireless backhaul nodes of the backhaul node or UE accessing the wireless backhaul node; or, the second node is one or more upstream wireless backhaul nodes or donor nodes of the wireless backhaul node.
  • a recovery module configured to recover and receive data sent by the second node according to the received data and the serial number, wherein the second node is the wireless One or more downstream wireless backhaul nodes of the backhaul node or UE accessing the wireless backhaul node; or, the second node is one or more upstream wireless backhaul nodes or donor nodes of the wireless backhaul node.
  • the sequence number is configured by an adaptation layer of the second node, or the sequence number is a PDU sequence number in a PDCP PDU sent by the multiplexing UE.
  • the header information of the adaptation layer of the wireless backhaul node includes one or more of the following combinations:
  • a wireless backhaul node including:
  • a first receiving module configured to receive a second data packet sent by one or more second nodes
  • a second determining module configured to determine a third data packet according to the second data packet
  • a third determining module configured to determine a second bearer between the wireless backhaul node and a third node
  • a second sending module configured to send the third data packet to the third node through the second bearer
  • the second node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node
  • the third node is an upstream wireless backhaul node or a donor node of the wireless backhaul node.
  • the second node is an upstream wireless backhaul node or a donor node of the wireless backhaul node
  • the third node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node.
  • the determining, by the wireless backhaul node, a second bearer between the wireless backhaul node and a third node includes:
  • the wireless backhaul node determines a second bearer between the wireless backhaul node and a third node according to quality of service QoS information of bearers of one or more UEs.
  • the second data packet includes a fourth data packet and a fifth data packet, wherein the fourth data packet is the upstream wireless backhaul node or the donor node or the downstream wireless backhaul node of the second node Sent, the fifth data packet is sent by a UE accessing the second node;
  • the second determining module is further configured to recover a fourth data packet and a sixth data packet according to the second data packet, and map the fourth data packet and the sixth data packet to the third data packet; or Recovering the second data packet to obtain a fourth data packet, a fifth data packet, and a sixth data packet, and mapping the fourth data packet, the fifth data packet, and the sixth data packet into the third data packet;
  • the sixth data packet is a data packet sent by a UE accessing the wireless backhaul node.
  • the header information of the second data packet or the header information of the third data packet includes one or more of the following combinations:
  • a communication device including: a processor, a memory, and a computer program stored on the memory and executable on the processor, and the computer program is implemented when executed by the processor.
  • a computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the adaptation of the wireless backhaul node according to the first aspect. Steps of the processing method of the layer, or steps of the transmission method of the wireless backhaul node according to the second aspect.
  • the end-to-end user plane process in the wireless backhaul node can be solved and the implementation complexity can be reduced.
  • Figure 1 is a schematic diagram of integrated access and backhaul
  • Figure 2 is a schematic diagram of the IAB framework
  • FIG. 3 is a schematic diagram of an I2 architecture based on an L2 relay
  • FIG. 4 is a flowchart of a method for processing an adaptation layer of a wireless backhaul node according to an embodiment of the present disclosure
  • FIG. 5 is a second flowchart of a transmission method of a wireless backhaul node according to an embodiment of the present disclosure
  • FIG. 6 is one of transmission schematic diagrams of a wireless backhaul node according to an embodiment of the present disclosure
  • FIG. 7 is a second schematic diagram of transmission of a wireless backhaul node according to an embodiment of the present disclosure.
  • FIG. 8 is a third transmission schematic diagram of a wireless backhaul node according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of an adaptation layer of a wireless backhaul node according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a wireless backhaul node according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as more optional or advantageous than other embodiments or designs. Rather, the use of the words “exemplary” or “for example” is intended to present the relevant concept in a concrete manner.
  • FIG. 4 a flowchart of a method for processing an adaptation layer of a wireless backhaul node according to an embodiment of the present disclosure.
  • the execution body of the method is an adaptation layer of a wireless backhaul node.
  • the specific steps are as follows:
  • Step 401 The adaptation layer of the wireless backhaul node determines the first node to send the received first data packet
  • Step 402 the adaptation layer of the wireless backhaul node maps the first data packet to a first bearer between the wireless backhaul node and the first node;
  • the first node is one or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the first node is one or more of the wireless backhaul nodes.
  • the adaptation layer of the wireless backhaul node has a function of mapping routes and data recovery.
  • the method further includes: the adaptation layer of the wireless backhaul node recovers the data sent by the second node according to the received data and the sequence number, wherein the second node is One or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the second node is an upstream wireless backhaul node or a donor node of the wireless backhaul node.
  • the sequence number is configured by an adaptation layer of the second node, or the sequence number is a PDU sequence number in a PDCP PDU sent by the multiplexing UE.
  • the header information of the adaptation layer of the wireless backhaul node includes one or more of the following combinations:
  • QoS Quality of Service
  • the end-to-end user plane process in the wireless backhaul node is solved and the implementation complexity is reduced.
  • a flowchart of a method for transmitting a wireless backhaul node according to an embodiment of the present disclosure is performed by a wireless backhaul node. The specific steps are as follows:
  • Step 501 The wireless backhaul node receives a second data packet sent by one or more second nodes.
  • the wireless backhaul section receives a plurality of second data units and multiple serial numbers of the first data units in the second data packet from the second node; according to the wireless backhaul node, Multiple first data units and the sequence number to obtain the second data packet sent by a second node.
  • sequence number may be configured by the adaptation layer of the second node, or the sequence number is in a Packet Data Convergence Protocol (PDCP) protocol data unit (PDU) sent by the multiplexing UE.
  • PDCP Packet Data Convergence Protocol
  • PDU protocol data unit
  • Step 502 The wireless backhaul node determines a third data packet according to the second data packet.
  • Step 503 The wireless backhaul node determines a second bearer between the wireless backhaul node and a third node.
  • the wireless backhaul node determines a second bearer between the wireless backhaul node and the third node according to the QoS information of the bearer of one or more UEs.
  • Step 504 The wireless backhaul node sends the third data packet to the third node through the second bearer.
  • the second node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node
  • the third node is an upstream wireless backhaul node or a donor node of the wireless backhaul node
  • the second node is an upstream wireless backhaul node or a donor node of the wireless backhaul node
  • the third node is a downstream wireless backhaul node of the wireless backhaul node and / or accesses the wireless backhaul.
  • the UE of the node is an upstream wireless backhaul node or a donor node of the wireless backhaul node
  • the third node is a downstream wireless backhaul node of the wireless backhaul node and / or accesses the wireless backhaul.
  • the second data packet may include a fourth data packet and a fifth data packet, where the fourth data packet is an upstream wireless backhaul node or a donor node or a downstream wireless backhaul node of the second node.
  • the fifth data packet is sent by the UE accessing the second node;
  • the determining, by the wireless backhaul node, a third data packet according to the second data packet includes:
  • the wireless backhaul node maps a fourth data packet and a sixth data packet into a third data packet
  • the wireless backhaul node maps a fourth data packet, a fifth data packet, and a sixth data packet into a third data packet;
  • the sixth data packet is a data packet sent by a UE accessing the wireless backhaul node.
  • the header information of the second data packet or the header information of the third data packet includes one or more of the following combinations:
  • MT Mobile Terminal
  • the IAB node accesses the next-level IAB node or IAB donor node through the UE function of the NR air interface, which is called the MT function of the IAB node.
  • MT is, for example, MT1, MT2, MT3.
  • Example 1 The adaptation layer does not include the GTP-U layer:
  • the data of UE1 and UE2 are sent to Integrated Access and Backhaul (IAB) node 1, and the distribution unit (DU) of IAB node 1 recovers the data of the UE1 and UE2 radio bearer DRB data (PDCP PDU).
  • the adaptation layer of IAB node 1 maps the DRBs of UE1 and UE2 to the DRBs of the air interface link between MT1 and the next-level IAB node according to the DRB QoS information of UE1 and UE2, and the adaptation layer sends the data of MT1 according to the routing information Go to the next-level IAB node (IAB node 2);
  • IAB node 2DU receives the data sent by MT1 and receives the data sent by the new UE (UE3). IAB node 2DU restores the data of MT1 and UE3.
  • the adaptation layer of IAB node 2 maps the data of MT1 and MT3 to the following. The DRBs of the air interface link of the first-level IAB node, the adaptation layer sends the data of MT1 to the next-level IAB node (IAB donor node) according to the routing information;
  • the IAB donor node DU receives the data sent by MT2, recovers the DRBs of MT2, and carries the DRBs of MT2 on the F1 interface between the donor DU and the CU (GTP-U / UDP / IP / L1 &L2);
  • the IAB donor node CU receives the DRBs of MT2, the adaptation layer recovers the DRBs of MT1 and UE3, further recovers the DRBs of UE1 and UE2, and sends the data of UE1, UE2, and UE3 to the corresponding SDAP or PDCP layer for processing.
  • the adaptation layer is composed of header information and a payload.
  • the header information includes the following content:
  • Example 2 The above line transmission is taken as an example:
  • the data of UE1 and UE2 are sent to IAB node 1.
  • the DU of IAB node 1 recovers the DRB data (PDCP PDU) of UE1 and UE2.
  • the adaptation layer of IAB node 1 sends UE1 according to the DRB QoS information of UE1 and UE2.
  • the DRBs of UE1 and UE2 are mapped to the DRBs of the air interface link between MT1 and the next-level IAB node, and the adaptation layer sends the data of MT1 to the next-level IAB node (IAB node 2) according to the routing information;
  • IAB node 2DU receives the data sent by MT1 and receives the data sent by the new UE (UE3).
  • IAB node 2DU restores the data of MT1 and UE3.
  • the adaptation layer of IAB node 2 restores the DRBs data of UE1 and UE2 included in MT1.
  • the recovered data of UE1, UE2, and UE3 are mapped to the DRBs of the air interface link of the next-level IAB node, and the adaptation layer sends the data of MT2 to the next-level IAB node (IAB donor node) according to the routing information;
  • the IAB donor node DU receives the data sent by MT2, restores the DRBs of MT2, and bears the DRBs of MT2 on the F1 interface between the donor DU and the CU (GTP-U / UDP / IP / L1 &L2);
  • the IAB donor node CU receives the DRBs of MT2, and the adaptation layer recovers the data of UE1, UE2, and UE3 and sends them to the corresponding SDAP / PDCP layer for processing.
  • the adaptation layer consists of header information and payload.
  • the header information includes the following content:
  • the adaptation layer includes the GTP-U (GPRS Tunneling Protocol at the user level) layer:
  • GTP-U GPRS Tunneling Protocol at the user level
  • the process of including GTP-U at the adaptation layer is basically the same as the process that does not.
  • the main difference is that a GTP-U tunnel is established between IAB node 1 and the IAB donor node CU.
  • the donor node can pass the tunnel endpoint of the GTP-U header.
  • Information such as an identifier (Tunnel Endpoint ID, TEID) may be the UE and the DRB ID of the UE, and the adaptation layer may no longer transmit related information.
  • the transmitting node's Internet Protocol (IP) data passes PDCP, Radio Link Control (RLC) layer, and the MAC and physical layer (PHY) are processed at the air interface. It is transmitted to the opposite node, and the opposite node recovers the IP data packet through the opposite protocol stack. Since RLC in LTE has cascading segmentation and sequencing functions, the opposite node can sequentially recover PDCP and PDU. In Fifth-generation (5G) systems, the RLC protocol layer no longer has the sequencing function, and the corresponding function is completed at the PDCP layer. Therefore, the PDCP PDU sent by the transmitting node cannot be performed at the peer RLC layer.
  • 5G Fifth-generation
  • the embodiment of the present disclosure proposes that the adaptation layer in the IAB should also have the function of reordering the PDCP layer, which is processed based on the serial number (SN) number.
  • the SN can be implemented in two specific embodiments:
  • Method 1 A separate new SN number is added at the adaptation layer, and the peer end sorts by the SN number;
  • Method 2 The adaptation layer reuses the SN number in the PDCP PDU sent by the UE.
  • the adaptation layer 900 of the wireless backhaul node includes:
  • a first determining module 901, configured to determine a first node to send a received first data packet
  • a first sending module 902 configured to map the first data packet to a first bearer between the wireless backhaul node and a first node;
  • the first node is one or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the first node is one or more of the wireless backhaul nodes.
  • the adaptation layer of the wireless backhaul node further includes: a recovery module, configured to recover the data sent by the second node according to the received data and the serial number, wherein, the The second node is one or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the second node is one or more upstream wireless backhauls of the wireless backhaul node Node or donor node.
  • a recovery module configured to recover the data sent by the second node according to the received data and the serial number, wherein, the The second node is one or more downstream wireless backhaul nodes of the wireless backhaul node or a UE accessing the wireless backhaul node; or the second node is one or more upstream wireless backhauls of the wireless backhaul node Node or donor node.
  • the sequence number is configured by an adaptation layer of the second node, or the sequence number is a PDU sequence number in a PDCP PDU sent by the multiplexing UE.
  • the header information of the adaptation layer of the wireless backhaul node includes one or more of the following combinations:
  • the wireless backhaul node 1000 includes:
  • a second determining module 1002 configured to determine a third data packet according to the second data packet
  • a third determining module 1003, configured to determine a second bearer between the wireless backhaul node and a third node
  • the second node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node
  • the third node is an upstream wireless backhaul node or a donor node of the wireless backhaul node.
  • the second node is an upstream wireless backhaul node or a donor node of the wireless backhaul node
  • the third node is a downstream wireless backhaul node of the wireless backhaul node and / or a UE accessing the wireless backhaul node.
  • the first receiving module is further configured to receive a plurality of second data units from the second node and the plurality of first data units in the second data packet.
  • the serial number in; obtaining the second data packet sent by the second node according to the plurality of first data units and the serial number.
  • the sequence number is configured by an adaptation layer of the second node, or the sequence number is a PDU sequence number in a PDCP PDU sent by the multiplexing UE.
  • the third determining module 1003 is further configured to:
  • the wireless backhaul node determines a second bearer between the wireless backhaul node and a third node according to quality of service QoS information of bearers of one or more UEs.
  • the second data packet includes a fourth data packet and a fifth data packet, wherein the fourth data packet is the upstream wireless backhaul node of the second node or The fifth data packet is sent by a donor node or a downstream wireless backhaul node, and the fifth data packet is sent by a UE accessing the second node;
  • the second determining module is further configured to recover a fourth data packet and a sixth data packet according to the second data packet, and map the fourth data packet and the sixth data packet to the third data packet; or Recovering the second data packet to obtain a fourth data packet, a fifth data packet, and a sixth data packet, and mapping the fourth data packet, the fifth data packet, and the sixth data packet into the third data packet;
  • the sixth data packet is a data packet sent by a UE accessing the wireless backhaul node.
  • the header information of the second data packet or the header information of the third data packet includes one or more of the following combinations:
  • an embodiment of the present disclosure provides another communication device 1100, including a processor 1101, a transceiver 1102, a memory 1103, a user interface, and a bus interface.
  • the processor 1101 may be responsible for managing the bus architecture and general processing.
  • the memory 1103 may store data used by the processor 1101 when performing operations.
  • the communication device 1100 may further include a computer program stored on the memory 1103 and executable on the processor 1101. When the computer program is executed by the processor 1101, the steps in the foregoing method are implemented.
  • the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 1101 and various circuits of the memory represented by the memory 1103 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, the embodiments of this disclosure will not further describe them.
  • the bus interface provides an interface.
  • the transceiver 1102 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.
  • the steps of the method or algorithm described in connection with the present disclosure may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions.
  • Software instructions may be composed of corresponding software modules, and the software modules may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, mobile hard disk, read-only optical disk, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may reside in an ASIC.
  • the ASIC can be located in a core network interface device.
  • the processor and the storage medium can also exist as discrete components in the core network interface device.
  • Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.
  • the embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present disclosure are described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions.
  • These computer program instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, so that instructions generated by the processor of the computer or other programmable data processing device may be used to Means for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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Abstract

本公开实施例提供一种无线回程节点的适配层的处理方法以及适配层,该方法包括:无线回程节点的适配层将接收到的第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;所述无线回程节点的适配层将所述第一数据包发送至所述第一节点;其中,所述第一节点为所述无线回程节点的下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的上游无线回程节点或施主节点。

Description

无线回程节点的适配层的处理方法以及适配层
相关申请的交叉引用
本申请主张在2018年5月21日在中国提交的中国专利申请号No.201810491231.5的优先权,其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域,具体涉及一种无线回程节点的适配层的处理方法以及无线回程节点的适配层。
背景技术
中继(Relay)技术以其能增加覆盖、提升容量、减小发射功率并且灵活快速部署的特点在无线通信领域得到重视,第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)在第四代移动通信(fourth generation,4G)长期演进(Long Term Evolution,LTE)中定义了基于中继的架构和流程。
在未来第五代移动通信(fifth generation,5G)系统中,移动通信将会以超密集网络部署的形态呈现,可能无法保证每个基站节点到核心网均存在有限回传连接,这种情况下,无线回传与中继技术将成为非常有潜力的技术。另一方面,5G系统将使用相比LTE更大带宽的频率(比如毫米波),同时采用大规模天线和多波束技术,使得综合接入与回传(Integrated and Access Backhaul,IAB)的使用成为可能,如图1所示。
3GPP正在开展5G综合接入与回传(IAB)的研究工作,图2给出了IAB的框架图。
IAB架构可以分为以下两大类:L2中继和L3中继,其中L3中继架构和LTE中标准化的中继架构类似,L2中继设计5G中新定义的集中单元-分布单元(CU-DU)架构,因此受到更多讨论。一种典型的L2中继架构如图3所示。
从图2可以看出IAB节点不具备完整的协议栈,仅具备DU的功能,中 继节点的F1回传承接在无线回传的新无线(New Radio,NR)空口链路上,需要适配层才能将F1回传在多级IAB节点间传输。但相关技术中适配层具备哪些功能是尚待研究的问题。
发明内容
本公开实施例的一个目的在于提供一种无线回程节点的适配层的处理方法以及适配层,解决无线回程节点的适配层功能定义的问题。
第一方面,提供了一种无线回程节点的适配层的处理方法,
无线回程节点的适配层确定将接收到的第一数据包发送的第一节点;
所述无线回程节点的适配层将所述第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;
其中,所述第一节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
可选地,所述处理方法还包括:
所述无线回程节点的适配层根据接收到的数据和序列号,恢复得到第二节点发送的数据,其中,所述第二节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第二节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
可选地,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
可选地,所述无线回程节点的适配层的头信息包括以下一项或多项组合:
所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的服务质量QoS信息;以及
路由信息。
第二方面,还提供了一种无线回程节点的传输方法,包括:
无线回程节点接收一个或多个第二节点发送的第二数据包;
所述无线回程节点根据所述第二数据包确定第三数据包;
所述无线回程节点确定所述无线回程节点与第三节点之间的第二承载;
所述无线回程节点通过所述第二承载将所述第三数据包发送至所述第三节点;
其中,所述第二节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE,所述第三节点为所述无线回程节点的上游无线回程节点或施主节点;
或者,
所述第二节点为所述无线回程节点的上游无线回程节点或施主节点,所述第三节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE。
可选地,所述无线回程节点确定所述无线回程节点与第三节点之间的第二承载,包括:
所述无线回程节点根据一个或多个UE的承载的服务质量QoS信息,确定所述无线回程节点与第三节点之间的第二承载。
可选地,所述第二数据包包括:第四数据包和第五数据包,其中所述第四数据包是所述第二节点的所述上游无线回程节点或施主节点或下游无线回程节点发送的,所述第五数据包是接入所述第二节点的UE发送的;
所述无线回程节点根据所述第二数据包确定第三数据包,包括:
所述无线回程节点根据所述第二数据包恢复得到第四数据包和第六数据包;
所述无线回程节点将第四数据包和第六数据包映射到第三数据包中;
或者,
所述无线回程节点根据所述第二数据包恢复得到第四数据包、第五数据包和第六数据包;
所述无线回程节点将第四数据包、第五数据包和第六数据包映射到第三 数据包中;
其中,所述第六数据包是接入所述无线回程节点的UE发送的数据包。
可选地,所述第二数据包的头信息或第三数据包的头信息包括以下一项或多项组合:
所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的服务质量QoS信息;以及
路由信息。
第三方面,还提供了一种无线回程节点的适配层,包括:
第一确定模块,用于确定将接收到的第一数据包发送的第一节点;
第一发送模块,用于将所述第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;
其中,所述第一节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
可选地,所述无线回程节点的适配层还包括:恢复模块,用于根据接收到的数据和序列号,恢复得到第二节点发送的数据,其中,所述第二节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第二节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
可选地,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
可选地,所述无线回程节点的适配层的头信息包括以下一项或多项组合:
所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的服务质量QoS信息;以及
路由信息。
第四方面,还提供了一种无线回程节点,包括:
第一接收模块,用于接收一个或多个第二节点发送的第二数据包;
第二确定模块,用于根据所述第二数据包确定第三数据包;
第三确定模块,用于确定所述无线回程节点与第三节点之间的第二承载;
第二发送模块,用于通过所述第二承载将所述第三数据包发送至所述第三节点;
其中,所述第二节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE,所述第三节点为所述无线回程节点的上游无线回程节点或施主节点;
或者,
所述第二节点为所述无线回程节点的上游无线回程节点或施主节点,所述第三节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE。
可选地,所述无线回程节点确定所述无线回程节点与第三节点之间的第二承载,包括:
所述无线回程节点根据一个或多个UE的承载的服务质量QoS信息,确定所述无线回程节点与第三节点之间的第二承载。
可选地,所述第二数据包包括:第四数据包和第五数据包,其中所述第四数据包是所述第二节点的所述上游无线回程节点或施主节点或下游无线回程节点发送的,所述第五数据包是接入所述第二节点的UE发送的;
所述第二确定模块进一步用于:根据所述第二数据包恢复得到第四数据包和第六数据包,将第四数据包和第六数据包映射到第三数据包中;或者,根据所述第二数据包恢复得到第四数据包、第五数据包和第六数据包,将第 四数据包、第五数据包和第六数据包映射到第三数据包中;
其中,所述第六数据包是接入所述无线回程节点的UE发送的数据包。
可选地,所述第二数据包的头信息或第三数据包的头信息包括以下一项或多项组合:
所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的服务质量QoS信息;以及
路由信息。
第五方面,还提供了一种通信设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如第一方面所述的无线回程节点的适配层的处理方法的步骤,或者如第二方面所述的无线回程节点的传输方法的步骤。
第六方面,还提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如第一方面所述的无线回程节点的适配层的处理方法的步骤,或者如第二方面所述的无线回程节点的传输方法的步骤。
在本公开实施例中,可以解决无线回程节点中端到端用户面流程并降低实现复杂度。
附图说明
通过阅读下文可选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选实施方式的目的,而并不认为是对本公开的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1为综合接入与回传示意图;
图2为IAB框架示意图;
图3为基于L2中继IAB架构示意图;
图4为本公开实施例的无线回程节点的适配层的处理方法的流程图;
图5为本公开实施例的无线回程节点的传输方法的流程图之二;
图6为本公开实施例的无线回程节点的传输示意图之一;
图7为本公开实施例的无线回程节点的传输示意图之二;
图8为本公开实施例的无线回程节点的传输示意图之三;
图9为本公开实施例的无线回程节点的适配层的结构示意图;
图10为本公开实施例的无线回程节点的结构示意图;
图11为本公开实施例的通信设备的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B,表示包含单独A,单独B,以及A和B都存在三种情况。
在本公开实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更可选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
参见图4,为本公开实施例的无线回程节点的适配层的处理方法的流程图,该方法的执行主体为无线回程节点的适配层,具体步骤如下:
步骤401:无线回程节点的适配层确定将接收到的第一数据包发送的第 一节点;
步骤402:所述无线回程节点的适配层将所述第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;
其中,所述第一节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
在本公开实施例中,无线回程节点的适配层具有映射路由和数据恢复的功能。
在本公开实施例中,可选地,方法还包括:所述无线回程节点的适配层根据接收到的数据和序列号,恢复得到第二节点发送的数据,其中,所述第二节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第二节点为所述无线回程节点的上游无线回程节点或施主节点。
在本公开实施例中,可选地,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
在本公开实施例中,无线回程节点的适配层的头信息包括以下一项或多项组合:
无线回程节点的承载与无线回程节点的下游无线回程节点和/或UE的承载的第一映射关系;
无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载(或称为数据无线承载)标识;
承载的服务质量(Quality of Service,QoS)信息;以及
路由信息。
在本公开实施例中,解决无线回程节点中端到端用户面流程并降低实现复杂度。
参见图5,为本公开实施例的无线回程节点的传输方法的流程图,该方法的执行主体为无线回程节点,具体步骤如下:
步骤501:无线回程节点接收一个或多个第二节点发送的第二数据包;
在本公开实施例中,可选地,无线回程节从所述第二节点接收多个第二数据单元和多个第一数据单元在第二数据包中的序列号;无线回程节点根据所述多个第一数据单元和所述序列号,得到第二节点发送的所述第二数据包。
进一步地,序列号可以是由第二节点的适配层配置的,或者序列号是复用UE发送的分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)协议数据单元(Protocol Data Unit,PDU)中的PDU序列号。
步骤502:无线回程节点根据所述第二数据包确定第三数据包;
步骤503:无线回程节点确定所述无线回程节点与第三节点之间的第二承载;
在本公开实施例中,无线回程节点根据一个或多个UE的承载的QoS信息,确定无线回程节点与第三节点之间的第二承载。
步骤504:无线回程节点通过所述第二承载将所述第三数据包发送至所述第三节点。
在本公开实施例中,可选地,第二节点为无线回程节点的下游无线回程节点和/或接入无线回程节点的UE,第三节点为无线回程节点的上游无线回程节点或施主节点;
在本公开实施例中,可选地,第二节点为无线回程节点的上游无线回程节点或施主节点,第三节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE。
在本公开实施例中,可选地,第二数据包可以包括:第四数据包和第五数据包,其中第四数据包是第二节点的上游无线回程节点或施主节点或下游无线回程节点发送的,第五数据包是接入所述第二节点的UE发送的;
所述无线回程节点根据所述第二数据包确定第三数据包,包括:
所述无线回程节点根据所述第二数据包恢复得到第四数据包和第六数据包;
所述无线回程节点将第四数据包和第六数据包映射到第三数据包中;
或者,
所述无线回程节点根据所述第二数据包恢复得到第四数据包、第五数据 包和第六数据包;
所述无线回程节点将第四数据包、第五数据包和第六数据包映射到第三数据包中;
其中,所述第六数据包是接入所述无线回程节点的UE发送的数据包。
在本公开实施例中,可选地,第二数据包的头信息或第三数据包的头信息包括以下一项或多项组合:
无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的QoS信息;以及
路由信息。
以下实施例中,MT(Mobile Terminal)的含义为:IAB节点通过NR空口的UE功能接入至下一级的IAB节点或者IAB施主节点,称之为IAB节点的MT功能。以下实施例中,MT例如为MT1、MT2、MT3。
示例1:适配层不包含GTP-U层:
参见图6,UE1和UE2的数据发送至综合接入与回程(Integrated Access and Backhaul,IAB)节点1,IAB节点1的分布单元(DU)恢复出UE1和UE2的数据无线承载DRB数据(PDCP PDU),IAB节点1的适配层根据UE1和UE2的DRB QoS信息将UE1和UE2的DRBs映射至MT1与下一级IAB节点空口链路的DRBs上,适配层根据路由信息将MT1的数据发送至下一级IAB节点(IAB节点2);
IAB节点2DU接收MT1发送的数据,同时接收新UE(UE3)发送的数据,IAB节点2DU恢复MT1的数据以及UE3的数据,IAB节点2的适配层将MT1的数据与MT3的数据映射至下一级IAB节点空口链路的DRBs,适配层根据路由信息将MT1的数据发送至下一级IAB节点(IAB施主节点);
IAB施主节点DU接收MT2发送的数据,恢复MT2的DRBs,将MT2 的DRBs承载在施主DU与CU间的F1接口上(GTP-U/UDP/IP/L1&L2);
IAB施主节点CU接收MT2的DRBs,适配层将MT1与UE3的DRBs恢复,进一步地将UE1和UE2的DRBs恢复,将UE1、UE2和UE3的数据送至对应的SDAP或PDCP层处理。
根据上述流程可以看出UE与施主基站间数据的传递通过适配层完成,适配层由头信息和有效载荷(payload)组成,头信息包括以下内容:
(1)上一级IAB节点MT DRBs和/或接入UE的DRBs与作为MT面向下一级节点DRBs的映射关系;
(2)UE ID;
(3)DRB ID;
(3)DRBs QoS信息;
(4)路由信息。
示例2:以上行传输为例:
参见图7,UE1和UE2的数据发送至IAB节点1,IAB节点1的DU恢复出UE1和UE2的DRB数据(PDCP PDU),IAB节点1的适配层根据UE1和UE2的DRB QoS信息将UE1和UE2的DRBs映射至MT1与下一级IAB节点空口链路的DRBs上,适配层根据路由信息将MT1的数据发送至下一级IAB节点(IAB节点2);
IAB节点2DU接收MT1发送的数据,同时接收新UE(UE3)发送的数据,IAB节点2DU恢复MT1的数据以及UE3的数据,IAB节点2的适配层将MT1包含的UE1和UE2的DRBs数据恢复同时将恢复出的UE1和UE2和UE3的数据映射至下一级IAB节点空口链路的DRBs,适配层根据路由信息将MT2的数据发送至下一级IAB节点(IAB施主节点);
IAB施主节点DU接收MT2发送的数据,恢复MT2的DRBs,将MT2的DRBs承载在施主DU与CU间的F1接口上(GTP-U/UDP/IP/L1&L2);
IAB施主节点CU接收MT2的DRBs,适配层将UE1,UE2和UE3的数据恢复,并发送至对应的SDAP/PDCP层处理。
根据上述流程可以看出UE与施主基站间数据的传递通过适配层完成,适配层由头信息和payload组成,头信息包括以下内容:
(1)上一级IAB节点MT DRBs和/或接入UE的DRBs与作为MT面向下一级节点DRBs的映射关系;
(2)UE ID;
(3)DRB ID;
(3)DRBs QoS信息;
(4)路由信息。
示例3:适配层包含GTP-U(用户层面的GPRS隧道协议)层:
参见图8,适配层包含GTP-U的流程与不包含的流程基本相同,主要区别在于IAB节点1与IAB施主节点CU间建立GTP-U隧道,施主节点可以通过GTP-U头的隧道端点标识符(Tunnel Endpoint ID,TEID)等信息可以UE及UE的DRB ID,适配层可以不再传递相关信息。
示例4:适配层的重排序功能:
在长期演进(Long Term Evolution,LTE)系统中,发射节点互联网协议(Internet Protocol,IP)数据经过PDCP,无线链路控制(Radio Link Control,RLC)层,MAC和物理层(PHY)处理在空口传输给对端节点,对端节点经过相反的协议栈恢复出IP数据包,由于LTE中RLC具有级联分段以及排序功能,对端节点能够顺序的恢复PDCP PDU。而在第五代移动通信技术(Fifth-generation,5G)系统中,RLC协议层不再具备排序功能,对应功能在PDCP层完成,因此,发射节点发送的PDCP PDU在对端RLC层并不能按序恢复,这使得在上述基于新无线(New Radio,NR)的IAB系统中IAB节点1智能恢复乱序的PDCP PDU包,并继续向下一级节点传递,会导致施主IAB节点PDCP层需要具有很大的排序窗口,增加复杂度,同时带来传输时延的增加。
本公开实施例提出IAB中的适配层还应具备PDCP层重排序的功能,基于序列号(Serial Number,SN)号来处理,SN具体可以通过两种实施例完成:
方式1:适配层添加单独的新的SN号,对端通过该SN号排序;
方式2:适配层重用UE发送的PDCP PDU中的SN号。
参见图9,为本公开实施例提供的无线回程节点的适配层的结构图,该无线回程节点的适配层900包括:
第一确定模块901,用于确定将接收到的第一数据包发送的第一节点;
第一发送模块902,用于将所述第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;
其中,所述第一节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
在本公开实施例中,可选地,所述无线回程节点的适配层还包括:恢复模块,用于根据接收到的数据和序列号,恢复得到第二节点发送的数据,其中,所述第二节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第二节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
在本公开实施例中,可选地,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
在本公开实施例中,可选地,所述无线回程节点的适配层的头信息包括以下一项或多项组合:
所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的服务质量QoS信息;以及
路由信息。
参见图10,为本公开实施例提供的无线回程节点的结构图,该无线回程节点1000包括:
第一接收模块1001,用于接收一个或多个第二节点发送的第二数据包;
第二确定模块1002,用于根据所述第二数据包确定第三数据包;
第三确定模块1003,用于确定所述无线回程节点与第三节点之间的第二承载;
发送模块1004,用于通过所述第二承载将所述第三数据包发送至所述第三节点;
其中,所述第二节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE,所述第三节点为所述无线回程节点的上游无线回程节点或施主节点;
或者,
所述第二节点为所述无线回程节点的上游无线回程节点或施主节点,所述第三节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE。
在本公开实施例中,可选地,所述第一接收模块进一步用于:从所述第二节点接收多个第二数据单元和所述多个第一数据单元在所述第二数据包中的序列号;根据所述多个第一数据单元和所述序列号,得到所述第二节点发送的所述第二数据包。
在本公开实施例中,可选地,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
在本公开实施例中,可选地,第三确定模块1003进一步用于:
所述无线回程节点根据一个或多个UE的承载的服务质量QoS信息,确定所述无线回程节点与第三节点之间的第二承载。
在本公开实施例中,可选地,所述第二数据包包括:第四数据包和第五数据包,其中所述第四数据包是所述第二节点的所述上游无线回程节点或施主节点或下游无线回程节点发送的,所述第五数据包是接入所述第二节点的UE发送的;
所述第二确定模块进一步用于:根据所述第二数据包恢复得到第四数据包和第六数据包,将第四数据包和第六数据包映射到第三数据包中;或者,根据所述第二数据包恢复得到第四数据包、第五数据包和第六数据包,将第四数据包、第五数据包和第六数据包映射到第三数据包中;
其中,所述第六数据包是接入所述无线回程节点的UE发送的数据包。
在本公开实施例中,可选地,所述第二数据包的头信息或第三数据包的头信息包括以下一项或多项组合:
所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
UE标识;
承载标识;
承载的服务质量QoS信息;以及
路由信息。
参见图11,本公开实施例提供了另一种通信设备1100,包括:处理器1101、收发机1102、存储器1103、用户接口和总线接口。
其中,处理器1101可以负责管理总线架构和通常的处理。存储器1103可以存储处理器1101在执行操作时所使用的数据。
本公开实施例中,通信设备1100还可以包括:存储在存储器1103上并可在处理器1101上运行的计算机程序,该计算机程序被处理器1101执行时实现如上述方法中的步骤。
在图11中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1101代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本公开实施例不再对其进行进一步描述。总线接口提供接口。收发机1102可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
结合本公开公开内容所描述的方法或者算法的步骤可以硬件的方式来实现,也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、移动硬盘、只读光盘或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位 于核心网接口设备中。当然,处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本公开所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式,对本公开的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本公开的具体实施方式而已,并不用于限定本公开的保护范围,凡在本公开的技术方案的基础之上,所做的任何修改、等同替换、改进等,均应包括在本公开的保护范围之内。
本领域内的技术人员应明白,本公开实施例可提供为方法、系统、或计算机程序产品。因此,本公开实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本公开实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开实施例是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或 多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开的精神和范围。这样,倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内,则本公开也意图包含这些改动和变型在内。

Claims (18)

  1. 一种无线回程节点的适配层的处理方法,包括,
    无线回程节点的适配层确定将接收到的第一数据包发送的第一节点;
    所述无线回程节点的适配层将所述第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;
    其中,所述第一节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
  2. 根据权利要求1所述的无线回程节点的适配层的处理方法,还包括:
    所述无线回程节点的适配层根据接收到的数据和序列号,恢复得到第二节点发送的数据,其中,所述第二节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第二节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
  3. 根据权利要求2所述的无线回程节点的适配层的处理方法,其中,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
  4. 根据权利要求1所述的无线回程节点的适配层的处理方法,其中,所述无线回程节点的适配层的头信息包括以下一项或多项组合:
    所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
    所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
    UE标识;
    承载标识;
    承载的服务质量QoS信息;以及
    路由信息。
  5. 一种无线回程节点的传输方法,包括:
    无线回程节点接收一个或多个第二节点发送的第二数据包;
    所述无线回程节点根据所述第二数据包确定第三数据包;
    所述无线回程节点确定所述无线回程节点与第三节点之间的第二承载;
    所述无线回程节点通过所述第二承载将所述第三数据包发送至所述第三节点;
    其中,所述第二节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE,所述第三节点为所述无线回程节点的上游无线回程节点或施主节点;
    或者,
    所述第二节点为所述无线回程节点的上游无线回程节点或施主节点,所述第三节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE。
  6. 根据权利要求5所述的传输方法,其中,所述无线回程节点确定所述无线回程节点与第三节点之间的第二承载,包括:
    所述无线回程节点根据一个或多个UE的承载的服务质量QoS信息,确定所述无线回程节点与第三节点之间的第二承载。
  7. 根据权利要求5所述的传输方法,其中,
    所述第二数据包包括:第四数据包和第五数据包,其中所述第四数据包是所述第二节点的所述上游无线回程节点或施主节点或下游无线回程节点发送的,所述第五数据包是接入所述第二节点的UE发送的;
    所述无线回程节点根据所述第二数据包确定第三数据包,包括:
    所述无线回程节点根据所述第二数据包恢复得到第四数据包和第六数据包;
    所述无线回程节点将第四数据包和第六数据包映射到第三数据包中;
    或者,
    所述无线回程节点根据所述第二数据包恢复得到第四数据包、第五数据包和第六数据包;
    所述无线回程节点将第四数据包、第五数据包和第六数据包映射到第三数据包中;
    其中,所述第六数据包是接入所述无线回程节点的UE发送的数据包。
  8. 根据权利要求5所述的传输方法,其中,所述第二数据包的头信息或第三数据包的头信息包括以下一项或多项组合:
    所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
    所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
    UE标识;
    承载标识;
    承载的服务质量QoS信息;以及
    路由信息。
  9. 一种无线回程节点的适配层,包括:
    第一确定模块,用于确定将接收到的第一数据包发送的第一节点;
    第一发送模块,用于将所述第一数据包映射到所述无线回程节点与第一节点之间的第一承载上;
    其中,所述第一节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第一节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
  10. 根据权利要求9所述的无线回程节点的适配层,其中,所述无线回程节点的适配层还包括:恢复模块,用于根据接收到的数据和序列号,恢复得到第二节点发送的数据,其中,所述第二节点为所述无线回程节点的一个或多个下游无线回程节点或接入所述无线回程节点的UE;或者,所述第二节点为所述无线回程节点的一个或多个上游无线回程节点或施主节点。
  11. 根据权利要求10所述的无线回程节点的适配层,其中,所述序列号是由第二节点的适配层配置的,或者所述序列号是复用UE发送的PDCP PDU中的PDU序列号。
  12. 根据权利要求9所述的无线回程节点的适配层,其中,所述无线回程节点的适配层的头信息包括以下一项或多项组合:
    所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
    所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
    UE标识;
    承载标识;
    承载的服务质量QoS信息;以及
    路由信息。
  13. 一种无线回程节点,包括:
    第一接收模块,用于接收一个或多个第二节点发送的第二数据包;
    第二确定模块,用于根据所述第二数据包确定第三数据包;
    第三确定模块,用于确定所述无线回程节点与第三节点之间的第二承载;
    第二发送模块,用于通过所述第二承载将所述第三数据包发送至所述第三节点;
    其中,所述第二节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE,所述第三节点为所述无线回程节点的上游无线回程节点或施主节点;
    或者,
    所述第二节点为所述无线回程节点的上游无线回程节点或施主节点,所述第三节点为所述无线回程节点的下游无线回程节点和/或接入所述无线回程节点的UE。
  14. 根据权利要求13所述的无线回程节点,其中,所述无线回程节点确定所述无线回程节点与第三节点之间的第二承载,包括:
    所述无线回程节点根据一个或多个UE的承载的服务质量QoS信息,确定所述无线回程节点与第三节点之间的第二承载。
  15. 根据权利要求13所述的无线回程节点,其中,
    所述第二数据包包括:第四数据包和第五数据包,其中所述第四数据包是所述第二节点的所述上游无线回程节点或施主节点或下游无线回程节点发送的,所述第五数据包是接入所述第二节点的UE发送的;
    所述第二确定模块进一步用于:根据所述第二数据包恢复得到第四数据包和第六数据包,将第四数据包和第六数据包映射到第三数据包中;或者, 根据所述第二数据包恢复得到第四数据包、第五数据包和第六数据包,将第四数据包、第五数据包和第六数据包映射到第三数据包中;
    其中,所述第六数据包是接入所述无线回程节点的UE发送的数据包。
  16. 根据权利要求13所述的无线回程节点,其中,所述第二数据包的头信息或第三数据包的头信息包括以下一项或多项组合:
    所述无线回程节点的承载与所述无线回程节点的下游无线回程节点和/或所述UE的承载的第一映射关系;
    所述无线回程节点的承载与所述无线回程节点的上游无线回程节点和/或施主节点的承载的第二映射关系;
    UE标识;
    承载标识;
    承载的服务质量QoS信息;以及
    路由信息。
  17. 一种通信设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至4中任一项所述的无线回程节点的适配层的处理方法的步骤,或者如权利要求5至8中任一项所述的无线回程节点的传输方法的步骤。
  18. 一种计算机可读存储介质,存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至4任一项所述的无线回程节点的适配层的处理方法的步骤,或者如权利要求5至8中任一项所述的无线回程节点的传输方法的步骤。
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