WO2016173076A1 - Procédé et système de transfert de données et ue assurant une fonction de relais - Google Patents

Procédé et système de transfert de données et ue assurant une fonction de relais Download PDF

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Publication number
WO2016173076A1
WO2016173076A1 PCT/CN2015/080409 CN2015080409W WO2016173076A1 WO 2016173076 A1 WO2016173076 A1 WO 2016173076A1 CN 2015080409 W CN2015080409 W CN 2015080409W WO 2016173076 A1 WO2016173076 A1 WO 2016173076A1
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Prior art keywords
data packet
protocol
destination
original data
relay
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PCT/CN2015/080409
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English (en)
Chinese (zh)
Inventor
张晨璐
张云飞
郑倩
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2016173076A1 publication Critical patent/WO2016173076A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present invention belongs to the field of mobile communications technologies, and in particular, to a data transfer method and system, and a UE (User Equipment) having a relay function.
  • UE User Equipment
  • the relay UE refers to the UE as a controlled end of the mobile communication network, and provides the user with a terminal function such as making a call, and also provides a data relay function as an integral part of the mobile communication network to improve the coverage and capacity of the network.
  • the relay UE solution can be implemented by simply integrating the terminal and the HeNB (Home Base Station) functions. Specifically, the UE data plane/control plane protocol stack and the HeNB data plane/control plane protocol stack are integrated directly in the UE. Providing the functions required for relaying the UE, on the basis of which the relay UE transmits the transit data to the mobile communication network node through the external network, such as the Internet, by using the HeNB's backhaul method based on the integrated HeNB protocol stack. To achieve its relay role. The HeNB needs to use the external network such as the Internet to perform data interaction with the mobile communication network node, and the delay and transmission uncertainty of the external network may result in degradation of the relay access performance provided for the UE. Therefore, the existing relay solution has the disadvantages of high latency and poor transmission reliability, which has a great impact on the QoS (Quality of Service) of the access user.
  • QoS Quality of Service
  • an object of the present invention is to provide a data relay transmission method and system, and a UE having a relay function, to solve the data relay caused by an existing relay solution by using an external network such as the Internet. High latency and poor transmission reliability.
  • a data transfer method is applied to a first user equipment, and the method includes:
  • the first destination data packet includes first feature data
  • the first feature data represents a sender of the first destination data packet
  • the UE is the first user equipment; performing a preset first decapsulation process on the UE data packet, to obtain a first original data packet, including:
  • the UE data packet received from the first user equipment is used as the first original data packet.
  • the UE is a UE that is excluded from the first user equipment, and performs a preset first decapsulation process on the UE data packet, to obtain a first original data packet:
  • the number of the UE data packet and the first original data packet is M, and M is a natural number greater than 1, and the first original data packet is encapsulated into a first destination of a preset format.
  • Packets including:
  • the M first original data packets are aggregated into P first intermediate data packets, P is a natural number not less than 1, and P ⁇ M;
  • the second intermediate data packet includes a relay protocol header, and the relay protocol header includes S a UE identifier, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the second intermediate data packets is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain P first destination data packets.
  • the number of the first data packet is one, and the first original data packet is encapsulated into a first destination data packet in a preset format, including:
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE identifier,
  • the UE identifier is a source UE identifier of the first original data packet;
  • the third intermediate data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a first destination data packet.
  • the UE is a UE that is other than the first user equipment, and performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, including:
  • the number of the UE data packet and the first original data packet is M, and M is a natural number greater than 1, and the first original data packet is encapsulated into a first destination of a preset format.
  • Packets including:
  • the M first original data packets are aggregated into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M;
  • the fifth intermediate data packet includes a relay protocol header, and the relay protocol
  • the header includes S UE identifiers, respectively, the source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the fifth intermediate data packets is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the number of the first data packet is one, and the first original data packet is encapsulated into a first destination data packet in a preset format, including:
  • the sixth intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE Identifying that the UE identifier is a source UE identifier of the first original data packet;
  • the sixth intermediate data packet is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain a first destination data packet.
  • a data transfer method is applied to a first user equipment, and the method includes:
  • the node data packet includes second feature data, and the second feature data is used to represent that the receiver identity of the node data packet is a UE;
  • the node data packet includes K sub-data packets and K destination UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1, and the node data packet is Performing a preset second decapsulation process, and obtaining the second original data packet includes:
  • each of the second original data packets includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet.
  • the node data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet, and the second de-encapsulation processing is performed on the node data packet to obtain a first
  • the two original data packets include:
  • the UE corresponding to the target UE identifier in the second original data packet is: another UE other than the first user equipment; and the second original data packet is encapsulated into a preset format.
  • the second destination data packet includes:
  • the second original data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a second destination data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: the first user equipment; and the second original data packet is encapsulated into a second destination data packet in a preset format.
  • the second original data packet is used as the second destination data packet.
  • a data relay transmission device is applied to a first user equipment, and the method includes:
  • a first receiving module configured to receive a UE data packet from the user equipment UE
  • a first decapsulation module configured to perform a preset first decapsulation process on the UE data packet, to obtain a first original data packet
  • a first encapsulating module configured to encapsulate the first original data packet into a first destination data packet in a preset format, where the first destination data packet includes first feature data, and the first feature data represents the first
  • the sender identity of a destination data packet is UE;
  • a first sending module configured to send the first destination data packet to a mobile communication network node.
  • the UE is the first user equipment; and the first decapsulation module is:
  • a first processing unit configured to use a UE data packet received from the first user equipment as the first original data packet.
  • the UE is another UE except the first user equipment, and the first decapsulation module includes:
  • a first decapsulating unit configured to perform decapsulation on the UE data packet from the other UE according to the PHY protocol, the MAC protocol, and the RLC protocol, to obtain the first original data packet.
  • the number of the first data packet and the first original data packet are M, and M is a natural number greater than 1.
  • the first encapsulation module includes:
  • a first aggregating unit configured to aggregate the M first original data packets into P first intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M;
  • the second intermediate data packet includes a relay protocol header, where The relay protocol header includes S UE identifiers, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • a second encapsulating unit configured to perform format encapsulation on each of the second intermediate data packets according to an RLC protocol, a MAC protocol, and a PHY protocol, to obtain P first destination data packets.
  • the number of the UE data packet and the first original data packet is one, and the first encapsulation module includes:
  • a third encapsulating unit configured to perform a preset relay format encapsulation on the first original data packet to obtain a third intermediate data packet;
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header Include a UE identifier, where the UE identifier is a source UE identifier of the first original data packet;
  • a fourth encapsulating unit configured to format and encapsulate the third intermediate data packet according to the RLC protocol, the MAC protocol, and the PHY protocol to obtain the first destination data packet.
  • the UE is another UE except the first user equipment, and the first decapsulation module includes:
  • a second decapsulation unit configured to perform decapsulation on the UE data packet according to the PHY protocol and the MAC protocol, to obtain a first original data packet.
  • the number of the UE data packet and the first original data packet is M, respectively.
  • M is a natural number greater than 1; then the first package module includes:
  • a second aggregating unit configured to aggregate the M first original data packets into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M ;
  • the relay protocol header includes S UE identifiers, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1.
  • S ⁇ M
  • a sixth encapsulating unit configured to perform format encapsulation on each of the fifth intermediate data packets according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the number of the UE data packet and the first original data packet is one, and the first encapsulation module includes:
  • a seventh encapsulating unit configured to perform a preset relay format encapsulation on the first original data packet by the RLC protocol layer to obtain a sixth intermediate data packet, where the sixth intermediate data packet includes a relay protocol header, where The relay protocol header includes a UE identifier, and the UE identifier is a source UE identifier of the first original data packet;
  • the eighth encapsulating unit is configured to perform format encapsulation on the sixth intermediate data packet according to the MAC protocol and the PHY protocol to obtain the first destination data packet.
  • a data relay transmission device is applied to a first user equipment, and the method includes:
  • a second receiving module configured to receive a node data packet from a mobile communication network node, where the node data packet includes second feature data, where the second feature data is used to represent a receiver identity of the node data packet as a UE;
  • a second decapsulation module configured to perform a second decapsulation process on the node data packet to obtain a second original data packet, where the second original data packet includes a target UE identifier;
  • a second encapsulating module configured to encapsulate the second original data packet into a second destination data packet in a preset format
  • a second sending module configured to send the second destination data packet to a destination UE corresponding to the internal UE identifier of the internal destination.
  • the node data packet includes K sub-data packets and K destination UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1; then the second de-encapsulation mode
  • the block includes:
  • a third decapsulation unit configured to perform decapsulation on the node data packet according to the PHY protocol, the MAC protocol, and the RLC protocol;
  • a splitting unit configured to split the decapsulated node data packet into K second original data packets, each of the second original data packets includes a sub data packet and a destination UE identifier corresponding to the sub data packet .
  • the node data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet
  • the second de-encapsulation module includes:
  • a fourth decapsulation unit configured to perform decapsulation on the node data packet according to the PHY protocol, the MAC protocol, and the RLC protocol, to obtain a second original data packet, where the second original data packet includes the sub data packet and the The destination UE identifier corresponding to the sub-data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: another UE other than the first user equipment; and the second encapsulation module includes:
  • the ninth encapsulating unit is configured to perform format encapsulation on the second original data packet according to the RLC protocol, the MAC protocol, and the PHY protocol to obtain a second destination data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: the first user equipment; and the second encapsulation module is:
  • a second processing unit configured to use the second original data packet as the second destination data packet.
  • a UE with a relay function including a communication bus, a network interface, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the network interface, the memory, and the processor;
  • the network interface is configured to receive a UE data packet from a user equipment UE;
  • the network interface is further configured to send the first destination data packet to the mobile communication network node
  • the program stores a set of program codes, and the processor calls program code stored in the memory to perform the following operations:
  • the data packet includes first feature data, and the first feature data represents a sender identity of the first destination data packet as a UE;
  • the UE is the first user equipment; the processor performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the UE data packet received from the first user equipment is used as the first original data packet.
  • the UE is another UE except the first user equipment, and the processor performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the number of the first data packet and the first original data packet are M, and M is a natural number greater than 1.
  • the processor encapsulates the first original data packet into a first format in a preset format.
  • Destination data package including:
  • the M first original data packets are aggregated into P first intermediate data packets, P is a natural number not less than 1, and P ⁇ M;
  • the second intermediate data packet includes a relay protocol header, and the relay protocol header includes S a UE identifier, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the second intermediate data packets is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain P first destination data packets.
  • the number of the first data packet is one, and the processor encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE identifier,
  • the UE identifier is a source UE identifier of the first original data packet;
  • the third intermediate data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a first destination data packet.
  • the UE is another UE except the first user equipment, and the processor performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the number of the first data packet and the first original data packet are M, and M is a natural number greater than 1.
  • the processor encapsulates the first original data packet into a first format in a preset format.
  • Destination data package including:
  • the M first original data packets are aggregated into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M;
  • the fifth intermediate data packet includes a relay protocol header, and the relay protocol
  • the header includes S UE identifiers, respectively, the source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the fifth intermediate data packets is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the number of the first data packet is one, and the processor encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the sixth intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE Identifying that the UE identifier is a source UE identifier of the first original data packet;
  • the sixth intermediate data packet is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain a first destination data packet.
  • a UE with a relay function comprising: a communication bus, a network interface, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the network interface, the memory, and the processor;
  • the network interface is configured to receive a node data packet from a mobile communication network node
  • the network interface is further configured to send the second destination data packet to the destination UE corresponding to the target UE identifier
  • the program stores a set of program codes, and the processor calls program code stored in the memory to perform the following operations:
  • the node data packet includes second feature data, and the second feature data is used to represent that the receiver identity of the node data packet is a UE;
  • the node data packet includes K sub-data packets and K destination UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1; then the processor performs the node data packet
  • the preset second decapsulation process obtains the second original data packet, which specifically includes:
  • each of the second original data packets includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet.
  • the node data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet
  • the processor performs a second de-encapsulation process on the node data packet to obtain a second The original data package, including:
  • the UE corresponding to the target UE identifier in the second original data packet is: other UEs other than the first user equipment; and the processor encapsulates the second original data packet into a preset format.
  • the second destination data packet specifically includes:
  • the second original data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a second destination data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: the first user equipment; and the processor encapsulates the second original data packet into a second destination data in a preset format.
  • Package including:
  • the second original data packet is used as the second destination data packet.
  • a UE with a relay function comprising: a communication bus, a first network interface, a second network interface, a memory, and a processor, wherein:
  • the communication bus is configured to implement the first network interface, the second network interface, the memory, and Connection communication between processors;
  • the first network interface is configured to receive a UE data packet from the user equipment UE;
  • the first network interface is further configured to send the first destination data packet to the mobile communication network node;
  • the second network interface is configured to receive a node data packet from a mobile communication network node
  • the second network interface is further configured to send the second destination data packet to the destination UE corresponding to the target UE identifier
  • the program stores a set of program codes, and the processor calls program code stored in the memory to perform the following operations:
  • the first destination data packet includes first feature data
  • the first feature data represents a sender of the first destination data packet
  • the node data packet includes second feature data, and the second feature data is used to represent that the receiver identity of the node data packet is a UE;
  • the UE is the first user equipment; the processor performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the UE data packet received from the first user equipment is used as the first original data packet.
  • the UE is another UE except the first user equipment, and the processor performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the number of the UE data packet and the first original data packet are respectively M, and M is greater than 1.
  • the first data packet is encapsulated into the first destination data packet in a preset format, and the processor includes:
  • the M first original data packets are aggregated into P first intermediate data packets, P is a natural number not less than 1, and P ⁇ M;
  • the second intermediate data packet includes a relay protocol header, and the relay protocol header includes S a UE identifier, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the second intermediate data packets is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain P first destination data packets.
  • the number of the first data packet is one, and the processor encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE identifier,
  • the UE identifier is a source UE identifier of the first original data packet;
  • the third intermediate data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a first destination data packet.
  • the UE is another UE except the first user equipment, and the processor performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the number of the first data packet and the first original data packet are M, and M is a natural number greater than 1.
  • the processor encapsulates the first original data packet into a first format in a preset format.
  • Destination data package including:
  • the M first original data packets are aggregated into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M;
  • the fifth intermediate data packet includes a relay protocol header, and the relay protocol
  • the header includes S UE identifiers, respectively, the source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the fifth intermediate data packets is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the number of the first data packet is one, and the processor encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the sixth intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE Identifying that the UE identifier is a source UE identifier of the first original data packet;
  • the sixth intermediate data packet is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain a first destination data packet.
  • the node data packet includes K sub-data packets and K destination UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1; then the processor performs the node data packet
  • the preset second decapsulation process obtains the second original data packet, which specifically includes:
  • each of the second original data packets includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet.
  • the node data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet
  • the processor performs a second de-encapsulation process on the node data packet to obtain a second The original data package, including:
  • the UE corresponding to the target UE identifier in the second original data packet is: other UEs other than the first user equipment; and the processor encapsulates the second original data packet into a preset format.
  • the second destination data packet specifically includes:
  • the second original data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a second destination data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: the first user equipment; and the processor encapsulates the second original data packet into a second destination data in a preset format.
  • Package including:
  • the second original data packet is used as the second destination data packet.
  • the method of the present invention receives a UE data packet from a user equipment, and obtains a first destination data packet including the first feature data by performing corresponding decapsulation and encapsulation processing on the UE data packet.
  • a feature data characterizes a sender identity of the first destination data packet as a UE; thereafter, the first destination data is transmitted to a mobile communication network node.
  • the transit data is sent in the role of the HeNB, and the method of the present invention processes the received UE data packet to be forwarded as a destination data packet capable of characterizing the sender identity as the UE, that is, the method of the present invention is a UE.
  • the role sends the relay data, so that the relay UE applying the method of the present invention can directly transmit the transit data to the mobile communication network node (such as the base station) without using the external network, reducing the relay delay and improving the relay transmission. reliability.
  • Embodiment 1 is a flow chart of a data transfer transmission method according to Embodiment 1 of the present invention.
  • 2(a) and 2(b) are respectively a protocol structure of a data plane and a control plane protocol stack in a relay scheme according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of a UE relay principle according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of a radio bearer of a relay function sublayer according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of a relay format package according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of a composition and a format of a relay protocol header according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic diagram of an uplink data relay process according to Embodiment 1 of the present invention.
  • FIG. 8 is another flowchart of a data transfer transmission method according to Embodiment 2 of the present invention.
  • FIG. 9 is a schematic structural diagram of a data relay transmission apparatus according to Embodiment 3 of the present invention.
  • FIG. 10 is another schematic structural diagram of a data relay transmission apparatus according to Embodiment 4 of the present invention.
  • FIG. 11 is a schematic structural diagram of a UE with a relay function according to Embodiment 1 of the present invention.
  • FIG. 12 is another schematic structural diagram of a UE with a relay function according to Embodiment 2 of the present invention.
  • FIG. 13 is another schematic structural diagram of a UE with a relay function according to Embodiment 3 of the present invention.
  • the embodiment 1 discloses a data transfer method applied to a first user equipment.
  • the method may include the following steps:
  • S101 Receive a UE data packet from the user equipment UE.
  • the data included in the UE data packet is user data or signaling data.
  • the source UE of the UE data packet may be another UE other than the first user equipment, that is, an access UE accessing the relay UE.
  • the source UE of the UE data packet may also be a first user equipment that carries the method of the present invention, that is, a relay UE.
  • the existing protocol stack of the existing ordinary UE that is, the protocol stack required to implement the terminal functions such as making a call and sending a short message, includes: a data plane protocol stack for providing technical support for receiving and transmitting user data, and Receive and send signaling data to provide technical support for the control plane protocol stack.
  • the data plane protocol stack includes a PHY (Physical Layer, Physical Layer) protocol, a MAC (Media Access Control) protocol, an RLC (Radio Link Control) protocol, and a PDCP. , IP, APP protocol; control plane protocol stack from bottom to top, including PHY protocol, MAC protocol, RLC protocol, PDCP, RRC protocol and NAS protocol, the UE implements its corresponding layer according to various protocols in the above protocol stack.
  • the UE has the function of transmitting a short message and the like, and also has a data transfer function, and provides data for data interaction between the access UE and the corresponding mobile communication network node (such as a base station).
  • the relay UE protocol stack structure shown in FIG. 2(a) and FIG. 2(b) this embodiment is in the original data plane protocol stack of the UE and the RLC protocol layer and the PDCP protocol layer of the control plane protocol stack.
  • a virtual sub-layer is added to the sub-layer.
  • the sub-layer can be a new sub-layer on the RLC side of the original PDCP layer (belonging to the PDCP layer) or a new sub-layer on the PDCP side of the original RLC layer (belonging to the RLC layer). ), can also be an independent protocol layer, or it can be the work of the original PDCP or RLC layer Can increase.
  • the PHY, MAC, RLC, relay function sublayer, PDCP, IP/RRC, APP/NAS layer protocols are used as UE function side protocols.
  • the PHY, MAC, RLC, and relay function sub-layer layer protocols are used as the relay function side protocol, and the UE is configured to receive and send the UE to the UE in the relay role.
  • Data support is provided; wherein the relay function side and the UE function side can independently have their respective RLC, MAC, and PHY layers, or one or more of the above layers can be shared to implement the UE function side protocol stack and the relay function.
  • the protocols common to the side protocol stacks are combined to reduce redundancy.
  • the relay function side and the UE function side can implement the logical connection of the two function sides through the shared relay function sub-layer. Based on this, the UE can realize the role between the UE role and the relay role in the process of transferring data. Conversion. For example, after receiving the relay data packet from the base station in the UE role on the UE function side, the UE processes the relay function sub-layer into the corresponding format data packet, and then the data packet enters another functional side—the relay function. On the other hand, the UE is converted into a relay role by the UE role. Finally, the relay data is forwarded by the relay function side of the UE in the relay role.
  • the UE After the relay function sub-layer is added on the basis of the original protocol stack, the UE has both the terminal function and the data relay function to form a relay UE. As shown in Figure 3.
  • the relay UE as a relay node can simultaneously maintain signaling and data connections with the access UE and the base station.
  • This embodiment specifically illustrates the method of the present application by taking the relay function sublayer as an independent protocol layer between the RLC protocol layer and the PDCP protocol layer.
  • A1/A2/A3 is a radio bearer from the functional side of the UE ( Relaying the UE's own data), that is, the PDCP PDU IP packet that is transmitted by the relay UE application layer and processed by the PDCP;
  • B1/B2/B3 is the radio bearer from the relay function side, specifically the RLC of the relay function side.
  • the PDCP SDU IP packet delivered by the layer upwards may be a data packet originating from one access UE or multiple data packets from multiple access UEs.
  • the relay function sublayer of the embodiment has the following functions 1 or 2 in order to distinguish between the relay mode data (the data to be transferred from the UE) and the UE form data (the relay UE itself):
  • IP packet aggregation is mapped to a small number of preset format result packets; for example, according to an aggregation mapping rule that maps packets with the same signaling type into one large packet, the data of the same signaling type is implemented.
  • the packets A x and B x are mapped to a data packet C x ;
  • the result data packet includes a corresponding PDCP SDU IP packet or a PDCP PDU IP packet, and a source UE identifier of the original PDCP SDU IP packet or a PDCP PDU IP packet, to implement relay shape data and UE configuration.
  • the distinction between data is that
  • Function 2 According to the one-to-one mapping rule, multiple PDCP SDU IP packets and PDCP PDU IP packets from the relay function side and the UE function side are mapped to the same number of preset format result data packets, for example, data is The packets A x and B x are mapped to packets C x1 and C x2 , respectively .
  • the result packet of the function 2 also includes the original PDCP SDU IP packet or the PDCP PDU IP packet corresponding to the mapping, and the source UE identifier of the original PDCP SDU IP packet or the PDCP PDU IP packet.
  • the received radio bearer includes only one data packet
  • the received PDCP SDU IP packet or PDCP PDU IP is directly mapped into the result packet of the corresponding format according to a one-to-one mapping rule.
  • the relay function sublayer adds a relay for each PDCP SDU IP packet or PDCP PDU IP packet according to different mapping principles. Protocol header (corresponding to function 2); or add a relay protocol header (corresponding to function 1) for aggregated data packets aggregated by multiple PDCP SDU IP packets and PDCP PDU IP packets.
  • FIG. 6 shows the composition and format of a relay protocol header, which specifically includes:
  • D/C element signaling data indicating whether the packet is user data or control signaling.
  • the packet is user data
  • the packet is signaling data.
  • Source ID (Source) element indicates whether the data source is the UE side or the relay side, and further is used to mark which access UE is specifically derived from the relay side;
  • L element indicates the length of the PDCP SUD IP packet or the PDCP PDU IP packet
  • R element To maintain byte alignment, fill with reserved bits depending on the length of the L and Source ID used.
  • Each PDCP SDU IP packet or ODCP PDU IP included in the aggregated data packet may correspond to an independent relay protocol subheader, and multiple subheaders are combined into one relay protocol header, or only one PDCP SDU or PDU is in one.
  • the relay protocol header includes multiple sets of D/C, Source ID and L elements, and respectively corresponds to a plurality of PDCP SDUs or PDUs.
  • the above elements such as the Source ID element and the L element, which characterize the data source identifier, the packet length, and the like, or the existing PDCP or RLC layer packet format are added.
  • the reserved bit R represents the above function.
  • the above definition of the relay function sub-layer and the function definition can be used as a pre-processing part of the method of the present invention.
  • the access UE needs to transmit data to the base station eNB (taking user data as an example), there is a data transfer requirement.
  • the access UE generates user data in its application layer, and the generated user data is sequentially
  • Each protocol layer (IP, PDCP, RLC, MAC) of the conventional protocol stack of the UE is encapsulated in a corresponding format, and enters the physical layer of the UE.
  • the UE encapsulates the UE data packet encapsulated into the corresponding format by the radio.
  • the application layer of the relay UE when the relay UE needs to transmit data to the base station eNB, the application layer of the relay UE generates data and transmits it downward to the PDCP layer, and the PDCP layer encapsulates the user data into a PDCP PDU IP packet (ie, After the first original data packet, it continues to be transmitted down to the relay function sublayer.
  • S102 Perform a preset first decapsulation process on the UE data packet to obtain a first original data packet.
  • the user data is taken as an example.
  • the relay function sub-layer is an independent protocol layer between the RLC layer and the PDCP layer
  • the physical layer of the relay UE receives the UE data packet that accesses the UE, and then transmits the data packet upward. It is decapsulated by the PHY, MAC, and RLC protocol layers of the relay side protocol stack to obtain a PDCP SDU IP packet, that is, the first original data packet. Finally, the RLC protocol layer delivers the PDCP SDU IP packet to the relay. Functional sublayer.
  • the step directly uses the data packet delivered by the relay UE PDCP layer as the first original data packet.
  • S103 Encapsulating the first original data packet into a first destination data packet in a preset format, where the first destination data packet includes first feature data, and the first feature data represents the first destination data packet.
  • the sender identity is UE.
  • the relay function sublayer of the relay UE receives M original data packets originating from multiple or one UE, the relay function sublayer aggregates the M first original data packets according to a preset aggregation rule.
  • P is the first intermediate data packet (that is, the above aggregated data packet); M is a natural number greater than 1, P is a natural number not less than 1, and P ⁇ M;
  • the relay protocol header includes S UE identifiers, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is not less than 1. Natural number, and S ⁇ M;
  • the RLC layer, the MAC layer, and the PHY layer of the UE function side respectively format and encapsulate each of the second intermediate data packets according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain P first destination data packets.
  • the relay function sublayer directly relays the first original data packet.
  • Encapsulating, obtaining a third intermediate data packet includes a relay protocol header, the relay protocol header includes a UE identifier, and the UE identifier is a source UE identifier of the first original data packet;
  • the relay processing flow of the data to be forwarded may be adaptively adjusted, for example, when the relay function sublayer is the function of the original RLC layer.
  • the physical layer of the relay UE transmits the data packet upwards, and then performs decapsulation processing through the PHY and MAC protocol layers of the relay side protocol stack, and transmits the data packet to the UE.
  • the RLC layer performs the required relay format encapsulation on it at the RLC layer.
  • the relay function sublayer is added to the function of the original RLC layer, after the relay format encapsulation of the data to be forwarded or to be transmitted is performed on the RLC layer, the relay encapsulation result is continued only according to the MAC protocol and the PHY protocol of the UE side. Format the package.
  • the relay UE When the uplink data is forwarded or transmitted, the relay UE finally performs format encapsulation on the uplink data according to each layer protocol in the UE functional side protocol stack to obtain the first destination data packet.
  • the format feature of the first destination data packet such as the packet header information (ie, the first feature data) carried by the format encapsulation processing of the UE layer side layer protocol, may represent the sender of the first destination data packet
  • the identity is UE.
  • S104 Send the first destination data packet to a mobile communication network node.
  • the physical layer of the relay UE may directly send the first destination data packet to the base station eNB, or transmit the first destination data packet to the base station by using a multi-hop relay. That is, the mobile communication network node may be a base station or a next hop relay based on the method of the present application.
  • the relay solution of the present application is applicable to a TSC (Terminal Small Cell) communication scenario and a D2D (Device-to-Device) direct connection communication scenario, based on the solution of the present application.
  • the UE may provide a data relay function as a relay node in the above two communication scenarios while providing the terminal function.
  • the method of the present invention can receive the UE data packet to be forwarded from the user equipment, and perform corresponding decapsulation and encapsulation processing on the UE data packet to obtain a first destination data packet including the first feature data.
  • the first feature data represents that the sender identity of the first destination data packet is a UE; after that, the first destination data is sent to a mobile communication network node.
  • the transit data is sent in the role of the HeNB, and the method of the present invention processes the received UE data packet to be forwarded as a destination data packet capable of characterizing the sender identity as the UE, that is, the method of the present invention is a UE.
  • the role sends the relay data, so that the relay UE applying the method of the present invention can directly transmit the transit data to the mobile communication network node (such as the base station) without using the external network, reducing the relay delay and improving the relay transmission. reliability.
  • the embodiment of the present invention discloses a data transfer method, which is applied to the first user equipment, and is different from the uplink data of the data transfer method in the first embodiment (that is, the UE transmits data to the base station).
  • the downlink data (the base station transmits data to the UE) relay function, referring to FIG. 8, the method may include the following steps:
  • S801 Receive a node data packet from a mobile communication network node, where the node data packet includes second feature data, and the second feature data is used to represent that the receiver identity of the node data packet is a UE.
  • the second feature data is the same as the first feature data, that is, each layer header carried by the node data packet from the base station eNB corresponds to the UE side protocol stack of the relay UE, and can be configured by each of the UE side protocol stacks.
  • the protocol layer implements decapsulation.
  • S802 Perform a preset second decapsulation process on the node data packet to obtain a second original data packet, where the second original data packet includes a target UE identifier.
  • S803 Encapsulate the second original data packet into a second destination data packet in a preset format.
  • S804 Send the second destination data packet to a destination UE corresponding to the internal target UE identifier.
  • the mobile communication network node is a base station eNB, or a next hop relay based on the method of the present application.
  • the relaying of the downlink data by the relay UE is an inverse process for the uplink data relay, if the node data
  • the packet includes K sub-data packets and K destination UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1, then:
  • the UE functional side physical layer of the relay UE decapsulates the node data packet through the PHY, MAC, and RLC layers of the UE function side, and decapsulates the packet in the relay function sublayer.
  • the node data packet is split into K second original data packets, each second original data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet, and finally, the K included in the node data packet is implemented.
  • the sub-packets are mapped one-to-one to K original packets.
  • the relay function sub-layer may directly transmit the sub-data packet to the application layer of the relay UE; if the destination UE identifier of the sub-data packet corresponds to the access UE, the relay The function sub-layer transmits the sub-packet to the RLC, MAC, and PHY protocol layers of the relay function side protocol stack for format encapsulation, and then sends the sub-packet to the UE corresponding to the target UE identifier to implement relaying of downlink data.
  • the relay function sub-layer of the relay UE does not need to send the node data packet to the RLC layer of the UE function side.
  • the encapsulated) performs packet splitting and directly uses it as the second original packet.
  • the third embodiment of the present invention discloses a data relay transmission device, which is applied to a first user equipment.
  • the device in this embodiment corresponds to the method in the first embodiment.
  • the device includes a first receiving module 100 and a first solution.
  • the module 200, the first package module 300, and the first sending module 400 are packaged.
  • the first receiving module 100 is configured to receive a UE data packet from the user equipment UE.
  • the first decapsulation module 200 is configured to perform a preset first decapsulation process on the UE data packet to obtain a first original data packet.
  • the first encapsulating module 300 is configured to encapsulate the first original data packet into a first destination data packet in a preset format, where the first destination data packet includes first feature data, and the first feature data represents the The sender identity of the first destination data packet is the UE.
  • the first decapsulation module is a first processing unit, configured to use a UE data packet received from the first user equipment as the first An original packet. If the UE is another UE except the first user equipment, the first decapsulation module is a first decapsulation unit, and is configured to sequentially according to a physical layer PHY protocol and a medium access control layer MAC. The protocol, the radio link control layer RLC protocol performs decapsulation on the UE data packets from the other UEs to obtain the first original data packet.
  • the first encapsulation module includes a first aggregation unit, a first encapsulation unit, and a second encapsulation unit.
  • a first aggregating unit configured to aggregate the M first original data packets into P first intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1;
  • the second intermediate data packet includes a relay protocol header, where The relay protocol header includes S UE identifiers, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • a second encapsulating unit configured to perform format encapsulation on each of the second intermediate data packets according to an RLC protocol, a MAC protocol, and a PHY protocol, to obtain P first destination data packets.
  • the first encapsulation module includes a third encapsulation unit and a fourth encapsulation unit.
  • a third encapsulating unit configured to perform a preset relay format encapsulation on the first original data packet to obtain a third intermediate data packet;
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header Include a UE identifier, where the UE identifier is a source UE identifier of the first original data packet;
  • a fourth encapsulating unit configured to format and encapsulate the third intermediate data packet according to the RLC protocol, the MAC protocol, and the PHY protocol to obtain the first destination data packet.
  • the first decapsulation module may be a second decapsulation unit, which is used according to the PHY protocol and the MAC protocol pair in sequence.
  • the UE data packet performs decapsulation to obtain a first original data packet.
  • the first encapsulation module includes a second aggregation unit, a fifth encapsulation unit, and a Six package units.
  • a second aggregating unit configured to aggregate the M first original data packets into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M ;
  • the relay protocol header includes S UE identifiers, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1.
  • S ⁇ M
  • a sixth encapsulating unit configured to perform format encapsulation on each of the fifth intermediate data packets according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the first encapsulating module includes a seventh encapsulating unit and an eighth encapsulating unit.
  • a seventh encapsulating unit configured to perform a preset relay format encapsulation on the first original data packet by the RLC protocol layer to obtain a sixth intermediate data packet, where the sixth intermediate data packet includes a relay protocol header, where The relay protocol header includes a UE identifier, and the UE identifier is a source UE identifier of the first original data packet;
  • the eighth encapsulating unit is configured to perform format encapsulation on the sixth intermediate data packet according to the MAC protocol and the PHY protocol to obtain the first destination data packet.
  • the fourth embodiment of the present invention discloses a data relay transmission device, which is applied to the first user equipment, and is different from the uplink data relay function of the data relay transmission device in the third embodiment.
  • the device in the fourth embodiment implements the downlink data relay function.
  • the apparatus includes a second receiving module 500, a second decapsulation module 600, a second encapsulating module 700, and a second sending module 800.
  • the second receiving module 100 is configured to receive a node data packet from a mobile communication network node, where the node data packet includes second feature data, and the second feature data is used to represent that the receiver of the node data packet is a UE.
  • the second decapsulation module 200 is configured to perform a second decapsulation process on the node data packet to obtain a second original data packet, where the second original data packet includes a target UE identifier.
  • the second decapsulation module includes a third decapsulation unit and a split unit.
  • a third decapsulation unit configured to perform decapsulation on the node data packet according to the PHY protocol, the MAC protocol, and the RLC protocol;
  • a splitting unit configured to split the decapsulated node data packet into K second original data packets, each of the second original data packets includes a sub data packet and a destination UE identifier corresponding to the sub data packet .
  • the second de-encapsulation module includes a fourth de-encapsulation unit, which is used to sequentially according to the PHY protocol, the MAC protocol, and the RLC.
  • the protocol performs decapsulation on the node data packet to obtain a second original data packet, where the second original data packet includes the sub-data packet and a destination UE identifier corresponding to the sub-data packet.
  • the second encapsulating module 300 is configured to encapsulate the second original data packet into a second destination data packet in a preset format.
  • the second encapsulation module is a ninth encapsulation unit, and the unit is used to sequentially according to the RLC.
  • the protocol, the MAC protocol, and the PHY protocol perform format encapsulation on the second original data packet to obtain a second destination data packet.
  • the second encapsulating module is a second processing unit, where the unit is configured to use the second original data packet As a second destination packet.
  • the second sending module 400 is configured to send the second destination data packet to the target UE corresponding to the target UE identifier.
  • the fifth embodiment of the present invention discloses a UE with a relay function, including the data relay transmission device according to the third embodiment, and/or the data relay transmission device according to the fourth embodiment.
  • the relay UE in this embodiment can implement data transfer function for data interaction between the access UE and the base station, thereby improving network coverage and capacity.
  • the present invention is distinguished from the existing relay scheme by the fact that the entire protocol structure of the UE and the HeNB is simply integrated in the UE, resulting in a high implementation cost.
  • the present invention passes the PDCP layer and the RLC layer of the existing protocol stack of the UE.
  • a relay function sub-layer is added, and the relay function side shares the conventional protocol stack (RLC, MAC, PHY) of the UE function side, and the UE function side protocol stack and the relay function side protocol stack are combined to reduce Redundancy reduces the cost; at the same time, the relay UE adopting the solution of the present invention can implement the transition between different roles through the relay function sublayer in the process of data relay, and perform data interaction between the base station role and the UE.
  • the UE role interacts with the base station without using an external network such as the Internet, which reduces the relay delay and improves the reliability of the relay transmission.
  • FIG. 11 is a block diagram showing the structure of a UE having a relay function according to an embodiment of the present invention.
  • the UE with the relay function in the embodiment of the present invention may include at least one network interface 1103, at least one processor 1101, such as a CPU, a memory 1104, and at least one communication bus 1102.
  • the processor 1101 may be combined with the figure.
  • the communication bus 1102 is configured to implement connection communication between the network interface 1103, the memory 1104, and the processor 1101.
  • the network interface 1103 may include a standard wired interface or a wireless interface (such as a WI-FI interface).
  • the network interface 1103 is configured to receive a UE data packet from the user equipment UE.
  • the network interface 1103 is further configured to send the first destination data packet to the mobile communication network node.
  • the above memory 1104 may be a high speed RAM memory or a non-volatile memory such as a magnetic disk memory.
  • the memory 1104 stores a set of program codes, and the processor 1101 calls the program code stored in the memory 1104 to perform the following operations:
  • the first destination data packet includes first feature data
  • the first feature data represents a sender of the first destination data packet
  • the UE is the first user equipment; the processor 1101 performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the UE data packet received from the first user equipment is used as the first original data packet.
  • the processor 1101 performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the number of the UE data packet and the first original data packet are respectively M, and M is a natural number greater than 1.
  • the processor 1101 encapsulates the first original data packet into a preset format.
  • a destination data packet including:
  • the M first original data packets are aggregated into P first intermediate data packets, P is a natural number not less than 1, and P ⁇ M;
  • the second intermediate data packet includes a relay protocol header, and the relay protocol header includes S a UE identifier, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the second intermediate data packets is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain P first destination data packets.
  • the number of the UE data packet and the first original data packet is one, and the processor 1101 encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE identifier,
  • the UE identifier is a source UE identifier of the first original data packet;
  • the third intermediate data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a first destination data packet.
  • the processor 1101 performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the number of the UE data packet and the first original data packet are respectively M, and M is a natural number greater than 1.
  • the processor 1101 encapsulates the first original data packet into a preset format.
  • a destination data packet including:
  • the M first original data packets are aggregated into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M;
  • the fifth intermediate data packet includes a relay protocol header, and the relay protocol
  • the header includes S UE identifiers, respectively, the source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the fifth intermediate data packets is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the number of the UE data packet and the first original data packet is one, and the processor 1101 encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the sixth intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE Identifying that the UE identifier is a source UE identifier of the first original data packet;
  • the sixth intermediate data packet is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain a first destination data packet.
  • terminal introduced in the embodiment of the present invention may be used to implement some or all of the processes in the method embodiment introduced by the present invention in conjunction with FIG.
  • FIG. 12 is a block diagram showing the structure of a UE having a relay function according to an embodiment of the present invention.
  • the UE with the relay function in the embodiment of the present invention may include at least one network interface 1203, at least one processor 1201, such as a CPU, a memory 1204, and at least one communication bus 1202.
  • the processor 1201 may be combined with the figure.
  • the data transfer device shown in FIG. 12 is a block diagram showing the structure of a UE having a relay function according to an embodiment of the present invention.
  • the UE with the relay function in the embodiment of the present invention may include at least one network interface 1203, at least one processor 1201, such as a CPU, a memory 1204, and at least one communication bus 1202.
  • the processor 1201 may be combined with the figure.
  • the communication bus 1202 is configured to implement the network interface 1203 and the memory 1204. And connection communication between the processors 1201;
  • the network interface 1203 may include a standard wired interface or a wireless interface (such as a WI-FI interface).
  • the network interface 1203 is configured to receive a node data packet from a mobile communication network node.
  • the network interface 1203 is further configured to send the second destination data packet to the destination UE corresponding to the target UE identifier.
  • the above memory 1204 may be a high speed RAM memory or a non-volatile memory such as a magnetic disk memory.
  • a set of program codes is stored in the memory 1204, and the processor 1201 calls the program code stored in the memory 1204 for performing the following operations:
  • the node data packet includes second feature data, and the second feature data is used to represent that the receiver identity of the node data packet is a UE;
  • the node data packet includes K sub-data packets and K target UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1; then the processor 1201 processes the node data packet.
  • Performing a preset second decapsulation process to obtain a second original data packet specifically including:
  • each of the second original data packets includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet.
  • the node data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet
  • the processor 1201 performs a preset second de-encapsulation process on the node data packet to obtain a Two original data packets, including:
  • the UE corresponding to the target UE identifier in the second original data packet is: other UEs other than the first user equipment; and the processor 1201 encapsulates the second original data packet into a preset.
  • the second destination data packet of the format includes:
  • the second original data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a second destination data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: the first user equipment; and the processor 1201 encapsulates the second original data packet into a second destination of a preset format.
  • the data package specifically includes:
  • the second original data packet is used as the second destination data packet.
  • the terminal introduced in the embodiment of the present invention may be used to implement some or all of the processes in the method embodiment introduced by the present invention in conjunction with FIG. 8.
  • FIG. 13 is a schematic structural diagram of a UE having a relay function according to an embodiment of the present invention.
  • the UE with the relay function in the embodiment of the present invention may include at least one first network interface 1303, at least one second network interface 1304, at least one processor 1301, such as a CPU, a memory 1305, and at least one.
  • the communication bus 1302, the processor 1301 can be combined with the data relay transmission device shown in FIGS. 9 and 10.
  • the communication bus 1302 is configured to implement connection communication between the first network interface 1303, the second network interface 1304, the memory 1305, and the processor 1301.
  • the first network interface 1303 may include a standard wired interface or a wireless interface (such as a WI-FI interface).
  • the first network interface 1303 is configured to receive a UE data packet from the user equipment UE.
  • the first network interface 1303 is further configured to send the first destination data packet to the mobile communication network node.
  • the second network interface 1304 described above may include a standard wired interface or a wireless interface (such as a WI-FI interface).
  • the second network interface 1304 is configured to receive a node data packet from a mobile communication network node, and the second network interface 1304 is further configured to send the second destination data packet to the destination UE corresponding to the target UE identifier.
  • the above memory 1305 may be a high speed RAM memory or a non-volatile memory such as a magnetic disk memory.
  • the program 1305 stores a set of program codes, and the processor 1301 calls the program code stored in the memory 1305 for performing the following operations:
  • the first destination data packet includes first feature data
  • the first feature data represents a sender of the first destination data packet
  • the node data packet includes second feature data, and the second feature data is used to represent that the receiver identity of the node data packet is a UE;
  • the UE is the first user equipment; the processor 1301 performs a preset first decapsulation process on the UE data packet to obtain a first original data packet, which specifically includes:
  • the UE data packet received from the first user equipment is used as the first original data packet.
  • the UE is the other UE except the first user equipment, and the processor 1301 performs a preset first decapsulation process on the UE data packet to obtain the first original data packet, which specifically includes:
  • the number of the UE data packet and the first original data packet are respectively M, and M is a natural number greater than 1.
  • the processor 1301 encapsulates the first original data packet into a preset format.
  • a destination data packet including:
  • the M first original data packets are aggregated into P first intermediate data packets, P is a natural number not less than 1, and P ⁇ M;
  • the second intermediate data packet includes a relay protocol header, and the relay protocol header includes S a UE identifier, where the S UE identifiers are respectively source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the second intermediate data packets is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain P first destination data packets.
  • the number of the UE data packet and the first original data packet is one, respectively, where the location
  • the processor 1301 encapsulates the first original data packet into a first destination data packet in a preset format, and specifically includes:
  • the third intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE identifier,
  • the UE identifier is a source UE identifier of the first original data packet;
  • the third intermediate data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a first destination data packet.
  • the UE is the other UE except the first user equipment, and the processor 1301 performs a preset first decapsulation process on the UE data packet to obtain the first original data packet, which specifically includes:
  • the number of the UE data packet and the first original data packet are respectively M, and M is a natural number greater than 1.
  • the processor 1301 encapsulates the first original data packet into a preset format.
  • a destination data packet including:
  • the M first original data packets are aggregated into P fourth intermediate data packets according to a preset aggregation rule, where P is a natural number not less than 1, and P ⁇ M;
  • the fifth intermediate data packet includes a relay protocol header, and the relay protocol
  • the header includes S UE identifiers, respectively, the source UE identifiers of the S first original data packets constituting the first intermediate data packet, and S is a natural number not less than 1, and S ⁇ M;
  • Each of the fifth intermediate data packets is format-encapsulated according to the MAC protocol and the PHY protocol, to obtain P first destination data packets.
  • the number of the UE data packet and the first original data packet are respectively one, and the processor 1301 encapsulates the first original data packet into a first destination data packet in a preset format, which specifically includes:
  • the sixth intermediate data packet includes a relay protocol header, and the relay protocol header includes a UE Identifying that the UE identifier is a source UE identifier of the first original data packet;
  • the node data packet includes K sub-data packets and K target UE identifiers corresponding to the K sub-data packets, and K is a natural number greater than 1; then the processor 1301 processes the node data packet.
  • Performing a preset second decapsulation process to obtain a second original data packet specifically including:
  • each of the second original data packets includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet.
  • the node data packet includes a sub-data packet and a destination UE identifier corresponding to the sub-data packet
  • the processor 1301 performs a preset second de-encapsulation process on the node data packet to obtain a Two original data packets, including:
  • the UE corresponding to the target UE identifier in the second original data packet is: other UEs other than the first user equipment; and the processor 1301 encapsulates the second original data packet into a preset.
  • the second destination data packet of the format includes:
  • the second original data packet is format-encapsulated according to the RLC protocol, the MAC protocol, and the PHY protocol, to obtain a second destination data packet.
  • the UE corresponding to the target UE identifier in the second original data packet is: the first user equipment; and the processor 1301 encapsulates the second original data packet into a second destination of a preset format.
  • the data package specifically includes:
  • the second original data packet is used as the second destination data packet.
  • terminal introduced in the embodiment of the present invention may be used to implement some or all of the processes in the method embodiments introduced in conjunction with FIG. 1 and FIG.
  • the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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

Abstract

L'invention concerne un procédé et un système de transfert de données et un UE assurant une fonction de relais. Le procédé consiste à : recevoir un paquet de données d'UE à transférer d'un équipement d'utilisateur ; obtenir un premier paquet de données cibles comprenant des premières données caractéristiques par désencapsulation ou encapsulation correspondante du paquet de données d'UE, les premières données caractéristiques indiquant que l'identité de l'émetteur du premier paquet de données cibles est l'UE ; et envoyer ensuite les premières données cibles à un nœud de réseau de communication mobile. Par conséquent, à la différence d'une solution de relais existante selon laquelle des données transférées sont envoyées dans un rôle d'un HeNB, selon le procédé de la présente invention, un paquet de données d'UE à transférer reçu est traité en un paquet de données cibles pouvant indiquer que l'identité d'un émetteur est un UE, et le paquet de données cibles est envoyé, c'est-à-dire que les données transférées sont envoyées dans un rôle de l'UE selon le procédé de la présente invention, de sorte que les données transférées puissent être directement transmises à un nœud de réseau de communication mobile au moyen d'un UE relais selon le procédé de la présente invention, et que l'aide d'un réseau externe se révèle inutile, ce qui permet de réduire le retard de relais et d'améliorer la fiabilité de la transmission relais.
PCT/CN2015/080409 2015-04-30 2015-05-29 Procédé et système de transfert de données et ue assurant une fonction de relais WO2016173076A1 (fr)

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CN106658380A (zh) * 2016-12-30 2017-05-10 宇龙计算机通信科技(深圳)有限公司 一种设备与设备中继网络的数据复用方法及智能终端
WO2018176416A1 (fr) * 2017-03-31 2018-10-04 华为技术有限公司 Procédé, appareil, et système de communication à relais
CN108809897A (zh) * 2017-04-28 2018-11-13 中兴通讯股份有限公司 一种中继发现及中继转发方法、设备和存储介质
CN110087340B (zh) * 2018-01-25 2024-04-05 北京三星通信技术研究有限公司 中继传输的方法及设备
WO2019027242A1 (fr) 2017-07-31 2019-02-07 Samsung Electronics Co., Ltd. Procédé et appareil de détection d'informations d'indication et procédés et dispositifs de relais de transmission
WO2019136933A1 (fr) * 2018-01-09 2019-07-18 Oppo广东移动通信有限公司 Procédé de transmission de données, et nœud relais
WO2019136606A1 (fr) * 2018-01-09 2019-07-18 Oppo广东移动通信有限公司 Procédé de transmission relais, et nœud relais
CN109526023B (zh) * 2019-01-02 2021-09-07 上海第二工业大学 一种数据包的封装及校验方法
CN110650550B (zh) * 2019-09-24 2021-05-07 展讯通信（上海）有限公司 数据传输方法、ue及计算机可读存储介质
CN114762366B (zh) * 2019-11-29 2023-09-01 华为技术有限公司 下行传输方法及通信装置
CN113543367B (zh) * 2020-04-20 2024-04-02 大唐移动通信设备有限公司 一种信息传输方法、装置、设备及计算机可读存储介质

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