TW202041064A - Wireless communication method, terminal device, and network device - Google Patents

Abstract

Embodiments of the present application provide a wireless communication method, a terminal device, and an access network device. The access network device can configure a plurality of header compression configurations for one DRB, such that when data packet having Ethernet frame structures carrying and not carrying a VLAN header, header compression or decompression can be performed according to the plurality of header compression configurations, thereby improving the header compression efficiency. The method comprises: a terminal device receives first configuration information sent by an access network device, the first configuration information being used for configuring a plurality of header compression configurations for a first DRB; the terminal device performs header compression or decompression on the first DRB according to the first configuration information.

Description

Wireless communication method, terminal equipment and access network equipment

The embodiments of the present application relate to the field of communication, and more specifically, to wireless communication methods, terminal devices, and access network devices.

In the Long Term Evolution (LTE) system, the type of session (Protocol Data Unit, PDU) is the Internet Protocol (IP) type, but in the fifth generation of mobile communication technology In the 5-Generation New Radio (5G NR) system, not only the IP type is supported, but also the Ethernet type is introduced. For the PDU layer (layer), when the PDU Session type is IPv4 or IPv6 or IPv4v6, the PDU session corresponds to IPv4 packets and/or IPv6 packets; when the PDU Session type is Ethernet, the PDU session corresponds to Is the Ethernet frame structure (frames).

In LTE and NR systems, a public network system is usually deployed, that is, a public land network based on a public land mobile network (Public Land Mobile Network, PLMN). At the same time, in some scenarios, such as office, home, factory and other scenarios, in order to be able to manage more safely and effectively, local users or administrators usually lay out the local network, and only authorized users who can access have the storage. Get permission to the local network.

In the scenario where the public network system and the local network coexist, when the PDU session is Ethernet frames, the Ethernet PDU may carry the Virtual Local Area Network (VLAN) header, or it may not carry the VLAN header. The corresponding Ethernet frame structure is different. In the header compression process, the header compression algorithms used by the two PDUs are different. Therefore, how to achieve header compression for Ethernet PDUs with and without VLAN headers is an urgent problem to be solved.

The embodiments of the present application provide a wireless communication method, terminal equipment, and access network equipment. The access network equipment can configure multiple header compression configurations for a data radio bearer (DRB), thereby simultaneously in a DRB When mapping data packets with an Ethernet frame structure that carries a VLAN header and does not carry a VLAN header, header compression or decompression can be performed based on multiple header compression configurations to improve header compression efficiency.

In the first aspect, a wireless communication method is provided, which includes:

The terminal device receives the first configuration information sent by the access network device, where the first configuration information is used to configure multiple header compression configurations for the first DRB;

The terminal device compresses or decompresses the header of the first DRB according to the first configuration information.

Optionally, in this embodiment of the present application, the terminal device may also receive the first configuration information sent by the core network device.

Specifically, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure service data unit SDU.

Specifically, the method further includes:

The terminal device maps multiple data packets in the first DRB, and the multiple data packets include data packets with an Ethernet frame structure with a VLAN header and Ethernet frame structures without a VLAN header. Data package

According to the VLAN indication, the PDCP device of the terminal device determines the data packet of the Ethernet frame structure with the VLAN header and/or the Ethernet frame structure without the VLAN header among the multiple data packets Information package.

Specifically, the VLAN indication is indicated by the access network device, or the VLAN indication is obtained by the terminal device through data flow information interaction between layers.

Specifically, the terminal device compressing or decompressing the header of the first DRB according to the first configuration information includes:

The PDCP device of the terminal device adopts a method of constructing a virtual VLAN to compress or decompress the header of the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets;

The PDCP device of the terminal device performs header compression or decompression on the data packet of the Ethernet frame structure with the VLAN header in the plurality of data packets according to the VLAN mode.

Specifically, the method further includes:

The first PDU configured by the terminal device of the first PDCP device carries first indication information, and the first indication information is used to indicate to the opposite end of the first PDCP device that the first PDU is a virtual VLAN header The header compression method performs header compression or the header compression method that does not use the virtual VLAN header.

Specifically, the method further includes:

The first PDU configured by the terminal device of the first radio link control RLC device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU is using virtual The header compression method of the VLAN header performs header compression or the header compression method does not use the virtual VLAN header.

Specifically, before the terminal device receives the first configuration information, the method further includes:

The terminal device reports the support capability for header compression and de-header compression of the overall Ethernet frame structure, or reports the support capability for header compression and de-header compression of the Ethernet header and data column respectively, It is used to indicate whether the terminal device supports header compression of the Ethernet frame structure and/or whether it supports header compression of the Ethernet frame structure of the VLAN header.

In a second aspect, a wireless communication method is provided, which includes:

The access network device sends first configuration information to the terminal device, where the first configuration information is used to configure multiple header compression configurations for the first DRB.

It should be noted that this method can be applied in a public network system, and/or a local network scenario, and/or a scenario where a public network system and a local network coexist.

Optionally, in the embodiment of the present application, the core network device may also send the first configuration information to the terminal device.

Specifically, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure service data unit SDU.

Specifically, the method further includes:

The access network device maps a plurality of data packets in the first DRB, and the plurality of data packets include a data packet with an Ethernet frame structure with a VLAN header and an Ethernet frame without a VLAN header Structured data package;

According to the VLAN indication, the PDCP device of the access network device determines the data packet of the Ethernet frame structure with the VLAN header and/or the Ethernet without the VLAN header among the multiple data packets Frame structure of the data packet.

Specifically, the VLAN indication is indicated by a core network device, or the VLAN indication is obtained by the access network device through a report from a terminal device.

Specifically, the method further includes:

The PDCP device of the access network device adopts a manner in which the header of the Ethernet frame structure does not perform header compression, and performs header compression or decompression on the multiple data packets.

Specifically, the method further includes:

The PDCP device of the access network device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header according to the VLAN instruction, and The data packet of the Ethernet frame structure without the VLAN header performs header compression or decompression of the Ethernet frame structure without the VLAN header.

Specifically, the method further includes:

The first protocol data unit PDU of the first PDCP device configured by the access network device carries first indication information, and the first indication information is used to indicate to the peer of the first PDCP device that the first PDU is used The header compression method including the VLAN header performs header compression or the header compression method does not include the VLAN header.

Specifically, the method further includes:

The first PDU of the first radio link control RLC device configured by the access network device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU is It uses a header compression method that includes the VLAN header for header compression or uses a header compression method that does not include the VLAN header for header compression.

Specifically, the method further includes:

The PDCP device of the access network device adopts a method of constructing a virtual VLAN to compress or decompress the header of the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets;

The PDCP device of the access network device performs header compression or decompression on the data packet of the Ethernet frame structure with the VLAN header among the multiple data packets according to the VLAN mode.

Specifically, the method further includes:

The first PDU of the first PDCP device configured by the access network device carries first indication information, and the first indication information is used to indicate to the peer of the first PDCP device that the first PDU adopts a virtual VLAN word The header compression method of the header performs header compression or the header compression method does not use the virtual VLAN header.

Specifically, the method further includes:

The access network device configures the first RLC device to carry first indication information in the first PDU, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU adopts a virtual VLAN word The header compression method of the header performs header compression or the header compression method that does not use the virtual VLAN header.

Specifically, the first indication information is carried on a reserved bit position in the first PDU; or

The first indication information is carried in a newly added bit field in the first PDU.

Specifically, before the access network device sends the first configuration information, the method further includes:

The access network device determines the first configuration information according to the first information, and the first information includes data packet identifiers corresponding to multiple data packets mapped to the first DRB, data packet arrangement order, and data packet transmission At least one of the time, the data packet, the QoS data flow corresponding to the data packet, and whether the VLAN indication of the QoS data flow corresponding to the data packet includes a VLAN identifier.

Specifically, the first information is reported by the terminal device, or the first information is instructed by the core network device.

Specifically, before the access network device sends the first configuration information, the method further includes:

The access network device receives the support capability for header compression and de-header compression of the overall Ethernet frame structure reported by the terminal device, and is used to indicate whether the terminal device supports the header of the Ethernet frame structure Compression and/or whether to support the header compression of the Ethernet frame structure of the VLAN header;

The access network device configures the header of the Ethernet frame structure for the first DRB without header compression configuration, or configures the first DRB to support or not support the Ethernet structure header and data column respectively Header compression configuration, or the first DRB configuration supports or does not support the header compression configuration of the Ethernet structure, or the first DRB configuration supports or does not support the Ethernet structure containing the VLAN header Header compression configuration.

Specifically, before the access network device sends the first configuration information, the method further includes:

The access network device receives the support capabilities for header compression and de-header compression of the Ethernet header and data column respectively reported by the terminal device, and is used to indicate whether the terminal device supports the Ethernet frame structure Header compression and/or whether to support header compression of the Ethernet frame structure of the VLAN header;

The access network device configures the header and the data column of the Ethernet frame structure for the first DRB to perform header compression configuration respectively, or does not configure header compression for the header of the Ethernet structure for the first DRB Configure, or configure a header compression configuration for the Ethernet structure for the first DRB, or configure a header compression configuration for the first DRB that supports or does not support the Ethernet structure that contains a VLAN header.

In a third aspect, a terminal device is provided, which is used to execute the method in the foregoing first aspect or each of its implementation manners.

Specifically, the terminal device includes a functional module for executing the method in the foregoing first aspect or each implementation manner thereof.

The terminal equipment includes:

The communication unit is configured to receive first configuration information sent by the access network device, where the first configuration information is used to configure multiple header compression configurations for the first data radio bearer DRB;

The processing unit is configured to perform header compression or decompression on the first DRB according to the first configuration information.

Specifically, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure service data unit SDU.

Specifically, the processing unit is further configured to:

Mapping a plurality of data packets in the first DRB, the plurality of data packets including a data packet of an Ethernet frame structure with a VLAN header and a data packet of an Ethernet frame structure without a VLAN header;

The PDCP device, which controls the packet data aggregation protocol of the terminal device, determines, according to the VLAN instruction, the data packet with the VLAN header and/or the Ethernet frame without the VLAN header among the multiple data packets Structure of the package.

Specifically, the VLAN indication is indicated by the access network device, or the VLAN indication is obtained by the terminal device through data flow information interaction between layers.

Specifically, the processing unit is specifically configured to: The PDCP device that controls the terminal device uses a manner in which the header of the Ethernet frame structure does not perform header compression, and performs header compression or decompression on the multiple data packets.

Specifically, the processing unit is specifically configured to:

The PDCP device controlling the terminal device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header according to the VLAN instruction, and whether The data packet of the Ethernet frame structure with the VLAN header performs header compression or decompression of the Ethernet frame structure without the VLAN header.

Specifically, the processing unit is further configured to:

The first protocol data unit PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate the opposite end of the first PDCP device. The first PDU adopts a label including a VLAN header. The header compression method performs header compression or uses a header compression method that does not include the VLAN header.

Specifically, the processing unit is further configured to:

The first PDU for configuring the first radio link control RLC device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU adopts a VLAN header The header compression method performs header compression or uses a header compression method that does not include the VLAN header.

Specifically, before the communication unit receives the first configuration information,

The processing unit is also used to obtain first information through data flow information interaction between layers. The first information includes data packet identifiers corresponding to multiple data packets mapped to the first DRB, data packet arrangement order, data At least one of the packet transmission time, whether the data packet includes a VLAN identifier, the QoS data flow corresponding to the data packet, and the VLAN indication of the QoS data flow corresponding to the data packet;

The communication unit is further configured to send the first information to the access network device, where the first information is used by the access network device or the core network device to determine the first configuration information; or

The communication unit is further configured to send the first information to a core network device, and the first information is used by the core network device to determine the first configuration information.

In a fourth aspect, an access network device is provided, which is used to execute the methods in the second aspect or its implementations.

Specifically, the access network device includes a functional module for executing the method in the foregoing second aspect or each of its implementation manners.

The access network equipment includes:

The communication unit is configured to send first configuration information to the terminal device, where the first configuration information is used to configure multiple header compression configurations for the first data radio bearer DRB.

Specifically, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure service data unit SDU.

Specifically, the access network device further includes:

The processing unit is configured to map a plurality of data packets in the first DRB, and the plurality of data packets include a data packet with an Ethernet frame structure with a VLAN header and an Ethernet frame structure without a VLAN header Data package;

The processing unit is also used to control the packetized data aggregation protocol PDCP device of the access network device to determine, according to the VLAN instruction, the data packet and/or the data packet of the Ethernet frame structure with the VLAN header among the multiple data packets. Data packet of Ethernet frame structure with VLAN header.

Specifically, the VLAN indication is indicated by a core network device, or the VLAN indication is obtained by the access network device through a report from a terminal device.

Specifically, the processing unit is further configured to:

The PDCP device that controls the access network device adopts a manner in which the header of the Ethernet frame structure does not perform header compression, and performs header compression or decompression on the multiple data packets.

Specifically, the processing unit is further configured to:

The PDCP device controlling the access network device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header according to the VLAN instruction, and The header compression or decompression of the Ethernet frame structure without the VLAN header is performed on the data packet of the Ethernet frame structure without the VLAN header.

Specifically, the processing unit is further configured to:

The first protocol data unit PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate the opposite end of the first PDCP device. The first PDU adopts a label including a VLAN header. The header compression method performs header compression or uses a header compression method that does not include the VLAN header.

Specifically, the processing unit is further configured to:

The first PDU for configuring the first radio link control RLC device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU adopts a VLAN header The header compression method performs header compression or uses a header compression method that does not include the VLAN header.

Specifically, the processing unit is further configured to:

The PDCP device controlling the access network device adopts a method of constructing a virtual VLAN to compress or decompress the header of the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets;

The PDCP device controlling the access network device performs header compression or decompression on the data packet of the Ethernet frame structure with the VLAN header in the multiple data packets according to the VLAN mode.

Specifically, the processing unit is further configured to:

The first PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate to the peer of the first PDCP device that the first PDU is a header compression method using a virtual VLAN header Perform header compression or use header compression methods that do not use virtual VLAN headers.

Specifically, the processing unit is further configured to:

The first PDU configured with the first radio link control RLC device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU is a virtual VLAN header The header compression method performs header compression or the header compression method that does not use the virtual VLAN header.

Specifically, the first indication information is carried on a reserved bit position in the first PDU; or

The first indication information is carried in a newly added bit field in the first PDU.

Specifically, before the communication unit sends the first configuration information, the processing unit is further configured to:

The first configuration information is determined according to the first information, and the first information includes the data packet identifier corresponding to the multiple data packets mapped to the first DRB, the data packet arrangement sequence, the data packet transmission time, the data packet, The QoS data flow corresponding to the packet and the VLAN indication of the QoS data flow corresponding to the data packet include at least one of the VLAN identifiers.

Specifically, the first information is reported by the terminal device, or the first information is instructed by the core network device.

Specifically, before the communication unit sends the first configuration information,

The communication unit is also used to receive the support capability for header compression and de-header compression of the overall Ethernet frame structure reported by the terminal device, and is used to indicate whether the terminal device supports the Ethernet frame structure standard Header compression and/or whether to support header compression of the Ethernet frame structure of the VLAN header;

The processing unit is further configured to configure the header of the Ethernet frame structure for the first DRB without header compression configuration, or configure the first DRB to support or not support the Ethernet structure header and data column respectively Perform header compression configuration, or configure the first DRB to support or not support the header compression configuration of the Ethernet structure, or configure the first DRB to support or not support the Ethernet containing the VLAN header The header compression configuration of the structure.

Specifically, before the communication unit sends the first configuration information,

The communication unit is also used to receive the support capability for header compression and de-header compression of the Ethernet header and data column respectively reported by the terminal device, and is used to indicate whether the terminal device supports the Ethernet frame structure Header compression and/or whether to support header compression of the Ethernet frame structure of the VLAN header;

The processing unit is further configured to configure the header and the data field of the Ethernet frame structure for the first DRB to perform header compression configuration respectively, or not configure the header for the Ethernet structure header for the first DRB Compression configuration, or, configure a header compression configuration for the Ethernet structure for the first DRB, or configure a header compression configuration for the first DRB that supports or does not support the Ethernet structure containing the VLAN header .

In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its implementations.

In a sixth aspect, an access network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementations.

In a seventh aspect, a wafer is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

Specifically, the chip includes: a processor, which is used to call and run computer programs from the memory, so that the device installed with the chip executes any one of the first aspect to the second aspect or each of the implementations thereof Methods.

In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program that enables the computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.

In a ninth aspect, a computer program product is provided, which includes computer program instructions that cause a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.

In a tenth aspect, a computer program is provided, which, when run on a computer, causes the computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.

Through the above technical solution, the access network device can configure multiple header compression configurations for the first DRB, so that a data packet including the VLAN header and the Ethernet frame structure that does not include the VLAN header are simultaneously mapped in the first DRB. At the same time, header compression or decompression can be performed based on multiple header compression configurations to improve header compression efficiency.

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, and broadband code division multiple access (CDMA) system. Take (Wideband Code Division Multiple Access, WCDMA) system, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a terminal device 110, and the terminal device 110 may be located within the coverage area of the access network device 120. As used herein, "terminal equipment" includes, but is not limited to, connection via wired lines, such as public switched telephone networks (PSTN), digital subscriber line (DSL), digital cables, and direct cable connections. And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, Wireless Local Area Network (WLAN), digital TV networks such as DVB-H networks A device configured to receive/send communication signals from another terminal device; and/or an Internet of Things (IoT) device. A terminal device set to communicate through a wireless interface can be called a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include but are not limited to satellites or mobile phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, and the Internet /Intranet access, Web browser, note book, calendar and/or PDA with Global Positioning System (GPS) receiver; and conventional laptop and/or palm-type receiver or including radio phone transceiver Other electronic devices. Terminal equipment can refer to access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless Communication equipment, user agent or user device. The access terminal can be a mobile phone, a wireless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

The communication system 100 may include an access network device 120, and the access network device 120 may be a device that communicates with a terminal device 110 (or called a communication terminal or terminal). The access network device 120 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located in the coverage area. Optionally, the access network device 120 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a NodeB (NodeB, NB) in a WCDMA system, or a base station in an LTE system. Evolutional Node B (eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, or a storage device. Access points, in-vehicle devices, wearable devices, hubs, switches, bridges, routers, network side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN) Wait.

The wireless communication system 100 also includes a core network device 130 that communicates with the access network device. Optionally, the core network device 130 may be a 5G core network device, for example, Access and Mobility Management Function (AMF), responsible for access and mobility management, and capable of authenticating and switching users , Location update and other functions. For another example, a session management function (Session Management Function, SMF) is responsible for session management, including the establishment, modification, and release of a packet data unit (PDU) session. For another example, the user plane function (UPF) is responsible for forwarding user data. Among them, the core network equipment may be the core network equipment of the LTE system or other systems.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

In the embodiment of this application, the access network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a network. The cell corresponding to the road equipment (such as the base station). The cell can belong to the macro base station or the base station corresponding to the small cell. The small cell here can include: Metro cell, Micro cell Cells, Pico cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

It should be understood that the packet data convergence protocol (Packet Data Convergence Protocol, PDCP) protocol introduces header compression and decompression functions to support different data radio bearers (Data Radio Bearer, DRB), according to the configured header compression configuration ( profile) use different header compression and header compression parameters. PDCP adopts Robust information header compression (Robust information header compression, ROHC) protocol. The supported header compression protocols (protocols) and configurations (profiles) are shown in Table 1. Specifically, as shown in Table 1 below, the compressed objects of different header compression configurations can be Real-time Transport Protocol (RTP), IP, User Datagram Protocol (User Datagram Protocol, UDP), encapsulation security At least one of Encapsulating Security Payload (ESP) and No compression. The compression strategy may be a series of RFC (Request For Comments) files as shown in Table 1 below.

Table 1 Configuration ID Compressed Object (Usage) Compression Strategy (Reference) 0x0000 No compression RFC 5795 0x0001 RTP/UDP/IP RFC 3095, RFC 4815 0x0002 UDP/IP RFC 3095, RFC 4815 0x0003 ESP/IP RFC 3095, RFC 4815 0x0004 IP RFC 3843, RFC 4815 0x0006 TCP/IP RFC 6846 0x0101 RTP/UDP/IP RFC 5225 0x0102 UDP/IP RFC 5225 0x0103 ESP/IP RFC 5225 0x0104 IP RFC 5225

Optionally, the embodiment of the present application may be used in a scenario where a public land network or a local network or a public network system and a local network coexist.

Among them, the public land network may be a public land network based on PLMN. A local network can also be called a local area network or a private network. The local network is usually deployed in office scenes, home scenes, and factories, which can achieve more effective and safe management, and there will usually be local users or managers. Local network. Generally, authorized users who can access have permission to access the local network.

The local network can be managed or governed by the public land network, but may not be managed or governed by the public land network.

Optionally, the local network can use an unlicensed frequency band for communication, or can also share an authorized frequency band with the public land network.

Optionally, the local network may be a network belonging to the category of 3GPP. Among them, the core network of the local network can be a core network of NR or LTE, and the local network can be accessed to the core network through an NR access network, an LTE access network or a wireless fidelity (Wireless Fidelity, Wifi).

Optionally, in the embodiment of the present application, the public land network and the local network may share the core network, and the access network is independent; or, the access network may be shared, and the core network is independent; or, The access network and the core network are shared; or, neither the access network nor the core network are shared.

Optionally, in the embodiment of the present application, multiple or multiple local networks may share the core network, and the access network is independent; or, may share the access network, but the core network is independent; or, may share The access network and the core network; or, the access network and the core network are not shared.

It should be noted that in public network systems, and/or local network scenarios, and/or public network systems and local network coexistence scenarios, when the PDU session is Ethernet frames, the Ethernet PDU may carry the VLAN word It may not carry the VLAN header, and the corresponding Ethernet frame structure is different. In the header compression process, the header compression algorithms used by the two PDUs are different. At this stage, no distinction is made for this scenario. Therefore, it is impossible to achieve header compression for Ethernet PDUs with and without VLAN headers. Based on the above-mentioned problems, this application proposes a method for Ethernet frame header compression configuration.

It should be understood that, in the embodiment of the present application, the network-side entity is not limited to the access network equipment, but may also be the core network equipment. Correspondingly, the processing layer of the terminal device and the network device can be the PDCP layer, or other entities or layers.

It should also be understood that, in the embodiments of the present application, the PDCP device may also be referred to as a PDCP layer, and the RLC device may also be referred to as an RLC layer.

FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 2, the method 200 may include the following content:

S210: The terminal device receives first configuration information sent by the access network device, where the first configuration information is used to configure multiple header compression configurations for the first DRB;

S220: The terminal device performs header compression or decompression on the first DRB according to the first configuration information.

Optionally, in the embodiment of the present application, the terminal device may also receive the first configuration information sent by the core network device, that is, the core network device may directly configure the first configuration information for the terminal device, and the core network device For example, it can be an AMF device or a UPF device. In the same way, the following descriptions about access network equipment are also applicable to core network equipment. The following takes the terminal device receiving the first configuration information from the access network device as an example for specific description.

It should be noted that the first DRB may be any DRB in the terminal device, that is, any DRB in the terminal device satisfies the embodiment of the present application.

Optionally, in this embodiment of the application, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the service data unit (SDU) of the Ethernet frame structure.

Optionally, in the embodiment of the present application, header compression configuration may be performed on the header and the data field of the Ethernet frame structure respectively.

For example, the access network device configures the header of the Ethernet frame structure for the first DRB without header compression configuration, or configures the first DRB to support or not support the header and data column of the Ethernet structure. Header compression configuration, or, the first DRB configuration supports or does not support the header compression configuration of the Ethernet structure, or the first DRB configuration supports or does not support the header of the Ethernet structure containing the VLAN header Compression configuration. The terminal device respectively performs header compression or decompression on the header and data field of the Ethernet frame structure according to the above configuration, or performs header compression or decompression on the entire Ethernet frame structure.

For another example, the access network device configures the header and data column of the Ethernet frame structure for the first DRB to perform header compression configuration respectively, or does not configure header compression for the header of the Ethernet structure for the first DRB Configure, or configure a header compression configuration for the Ethernet structure for the first DRB, or configure a header compression configuration for the first DRB that supports or does not support the Ethernet structure containing the VLAN header. The terminal device respectively performs header compression or decompression on the header and data field of the Ethernet frame structure according to the above configuration, or performs header compression or decompression on the entire Ethernet frame structure.

Optionally, in the embodiment of the present application, the terminal device maps multiple data packets in the first DRB, and the multiple data packets include data packets with an Ethernet frame structure with a VLAN header and data packets without a VLAN word. The header of the data packet of the Ethernet frame structure. That is to say, the terminal device maps the Ethernet frame structure including the VLAN header and the Ethernet frame structure not including the VLAN header in the first DRB. At this time, the terminal device can respectively map the Ethernet frame structure The header and data column of the structure are compressed or decompressed.

Optionally, in the embodiment of the present application, the terminal device maps multiple data packets in the first DRB, and the multiple data packets include data packets with an Ethernet frame structure with a VLAN header and data packets without a VLAN word. The header of the data packet of the Ethernet frame structure. In other words, the terminal device maps the Ethernet frame structure including the VLAN header and the Ethernet frame structure not including the VLAN header in the first DRB. At this time, the terminal device can map the Ethernet frame structure Perform header compression or decompression as a whole.

Optionally, the terminal device can determine the data packet of the Ethernet frame structure with the VLAN header and/or the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets according to the VLAN indication.

Wherein, the VLAN indication is indicated by the access network device, or the VLAN indication is obtained by the terminal device through data flow information interaction between layers.

Specifically, in the embodiment of this application, it can be the PDCP device of the terminal device, or the PDU device of the terminal device, or the RLC device of the terminal device, or the newly added sublayer pair in the 5G network is mapped to the first Header compression or decompression is performed on multiple data packets of a DRB.

In the following, a specific description will be given by taking as an example that the PDCP device of the terminal device performs header compression or decompression on multiple data packets mapped to the first DRB.

Optionally, as example one, the PDCP device of the terminal device adopts a manner in which the header of the Ethernet frame structure does not perform header compression to perform header compression or decompression on the multiple data packets. It should be noted that at this time, the compression method of the data column is not limited.

Optionally, as an example two, the PDCP device of the terminal device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header according to the VLAN instruction Compression, and the header compression or decompression of the Ethernet frame structure without the VLAN header is performed on the data packet of the Ethernet frame structure without the VLAN header.

Further, in the second example, the terminal device configures the first PDCP device to carry first indication information in the first PDU, and the first indication information is used to indicate to the opposite end of the first PDCP device that the first PDU is used The header compression method including the VLAN header performs header compression or the header compression method does not include the VLAN header.

It should be noted that the first PDCP device may be any PDCP device in the terminal device that serves the first DRB, that is, any PDCP device in the terminal device that serves the first DRB satisfies the Example. Similarly, the first PDU may be any PDU in the first PDCP device.

Optionally, in the second example, the first indication information is carried in a reserved bit position in the first PDU; or the first indication information is carried in a newly added bit in the first PDU Domain.

For example, as shown in Figure 3, the terminal device defines a V field that occupies 1 bit. The V field is located in one of the three R bits reserved in the first PDU. In the V field, 1 It means that the first PDU is header compression using a header compression method including a VLAN header, and a definition of 0 means that the first PDU is header compression using a header compression method that does not include a VLAN header. The opposite end of the first PDCP device can learn the header compression mode of the first PDU according to the V field, and then perform corresponding decompression.

For another example, as shown in FIG. 4, the terminal device adds a 1 Oct V field after the PDCP SN in the first PDU and before the data. In the V field, the definition 1 indicates that the first PDU is used to include VLAN The header compression method of the header performs header compression, and the definition 0 means that the first PDU is header compression using the header compression method that does not include the VLAN header. The opposite end of the first PDCP device can learn the header compression mode of the first PDU according to the V field, and then perform corresponding decompression.

It should be understood that in FIGS. 3 and 4, PDCP SN may refer to a PDCP sequence number (Sequence Number, SN), Oct may refer to the unit byte length, and MAC may refer to Media Access Control (Media Access Control, MAC) , PDCP SN (cont.) means continuous PDCP SN, and MAC-I (cont.) means continuous MAC.

It should be noted that the opposite end of the first PDCP device may be a PDCP device located in the access network device.

Further, in the second example, the terminal device configures the first RLC device to carry first indication information in the first PDU, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU is used The header compression method that includes the VLAN header is used for header compression or the header compression method that does not include the VLAN header is used for header compression.

Correspondingly, the opposite end of the first RLC device informs the PDCP device of the local entity of whether to use or not to use VLAN word header compression.

It should be noted that the first RLC device may be any RLC device in the terminal device that serves the first DRB, that is, any RLC device in the terminal device that serves the first DRB satisfies the Example. Similarly, the first PDU may be any PDU in the first RLC device.

In the same way, the first PDU of the first RLC device may also be added as shown in FIG. 3 and FIG. 4 to indicate the compression mode of the first PDU of the first RLC device opposite to the first RLC device. , For the sake of brevity, I will not repeat it here.

Optionally, as example three, the terminal device transmits in the first PDCP device a PDU that uses a header compression method including a VLAN header for header compression, and transmits in a second PDCP device that does not include a VLAN header. The header compression method is a PDU with header compression.

It should be noted that, in the third example, the first PDCP device and the second PDCP device are configured by the access network device through RRC signals.

Optionally, as example four, the PDCP device of the terminal device adopts a method of constructing a virtual VLAN to perform header compression or decompression on the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets;

The PDCP device of the terminal device performs header compression or decompression on the data packets of the Ethernet frame structure with the VLAN header in the multiple data packets according to the VLAN mode.

It should be noted that at this time, the network side can only configure a header compression and decompression method and parameters containing the VLAN subheader.

Further, in this example four, the terminal device configures the first PDCP device in the first PDU carrying first indication information, and the first indication information is used to indicate to the opposite end of the first PDCP device that the first PDU is used The header compression method of the virtual VLAN header performs header compression or the header compression method does not use the header compression method of the virtual VLAN header.

It should be noted that the first PDCP device may be any PDCP device in the terminal device that serves the first DRB, that is, any PDCP device in the terminal device that serves the first DRB satisfies the Example. Similarly, the first PDU may be any PDU in the first PDCP device.

Optionally, in the fourth example, the first indication information is carried in a reserved bit position in the first PDU; or the first indication information is carried in a newly added bit in the first PDU Domain.

For example, as shown in Figure 5, the terminal device defines a V field that occupies 1 bit. The V field is located in one of the three R bits reserved in the first PDU. In the V field, 1 It means that the first PDU is header compression using the header compression method of the virtual VLAN header, and a definition of 0 means that the first PDU is header compression not using the header compression method of the virtual VLAN header. The opposite end of the first PDCP device can learn the header compression mode of the first PDU according to the V field, and then perform corresponding decompression.

For another example, as shown in FIG. 6, the terminal device adds a 1 Oct V field after the PDCP SN in the first PDU and before the data. In the V field, the definition 1 means that the first PDU adopts a virtual VLAN. The header compression method of the header performs header compression, and the definition 0 means that the first PDU is header compression without using the header compression method of the virtual VLAN header. The opposite end of the first PDCP device can learn the header compression mode of the first PDU according to the V field, and then perform corresponding decompression.

It should be understood that, in FIGS. 5 and 6, PDCP SN may refer to the PDCP sequence number, and Oct may refer to the unit byte length.

It should be noted that the corresponding virtual VLAN information is removed when the opposite end of the first PDCP performs decompression. The opposite end of the first PDCP device may be a PDCP device located in the access network device.

Further, in the fourth example, the terminal device configures the first RLC device to carry first indication information in the first PDU, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU is used The header compression method of the virtual VLAN header performs header compression or the header compression method does not use the header compression method of the virtual VLAN header.

Correspondingly, the opposite end of the first RLC device informs the PDCP device of the local entity of whether to use or not to use VLAN word header compression.

It should be noted that the first RLC device may be any RLC device in the terminal device that serves the first DRB, that is, any RLC device in the terminal device that serves the first DRB satisfies the Example. Similarly, the first PDU may be any PDU in the first RLC device.

In the same way, the first PDU of the first RLC device can also be added as shown in FIG. 5 and FIG. 6 to indicate whether the first PDU of the first RLC device opposite to the first RLC device is for adding a virtual VLAN. For the sake of brevity, the instruction information of the compression method will not be repeated here.

Optionally, in the embodiment of the present application, before the terminal device receives the first configuration information, the terminal device obtains the first information through the data flow information interaction between layers, and the first information includes a map mapped to the first DRB Data packet identification corresponding to multiple data packets, data packet arrangement order, data packet transmission time, whether the data packet includes VLAN identification, QoS data flow corresponding to the data packet (Flow), VLAN indication of the QoS data flow corresponding to the data packet At least one of them.

Further, the terminal device sends the first information to the access network device, and the first information is used by the access network device or the core network device to determine the first configuration information, or

The terminal device sends the first information to the core network device, and the first information is used by the core network device to determine the first configuration information.

Optionally, in the embodiment of the present application, before the terminal device receives the first configuration information, the terminal device reports the support capabilities for header compression and de-header compression of the entire Ethernet frame structure, or, respectively Reporting the ability to support header compression and de-header compression of the Ethernet header and data column, used to indicate whether the terminal device supports header compression of the Ethernet frame structure and/or whether it supports Ethernet of the VLAN header The header compression of the net frame structure.

It should be understood that the support capability reported by the above terminal device is used for the access network device or the core network device to determine the first configuration information.

Therefore, in the embodiment of the present application, the access network device can configure multiple header compression configurations for the first DRB, so that the first DRB is simultaneously mapped with an Ethernet frame that includes the VLAN header and does not include the VLAN header. In the case of a structured data packet, the terminal device can perform header compression or decompression based on multiple header compression configurations to improve header compression efficiency.

FIG. 7 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG. 3, the method 300 may include the following content:

S310. The access network device sends first configuration information to the terminal device, where the first configuration information is used to configure multiple header compression configurations for the first DRB.

Optionally, in the embodiment of the present application, the core network device may also send the first configuration information, that is, the core network device may directly configure the first configuration information for the terminal device, and the core network device may be, for example, an AMF device. , Or UPF equipment. In the same way, the following descriptions about access network equipment are also applicable to core network equipment. The following takes the access network device sending the first configuration information as an example for specific explanation.

It should be noted that the first DRB may be any DRB in the terminal device, that is, any DRB in the terminal device meets the embodiments of the present application.

Optionally, in this embodiment of the present application, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure SDU.

Optionally, in the embodiment of the present application, the access network device maps multiple data packets in the first DRB, and the multiple data packets include data packets with an Ethernet frame structure with a VLAN header and data packets without The data packet of the Ethernet frame structure with the VLAN prefix.

Optionally, the access network device determines the data packets of the Ethernet frame structure with the VLAN header and/or the data packets of the Ethernet frame structure without the VLAN header in the plurality of data packets according to the VLAN instruction package.

Optionally, the VLAN indication is indicated by a core network device, or the VLAN indication is obtained by the access network device through a report from a terminal device.

Specifically, in the embodiment of the present application, it may be the PDCP device of the access network device, or the PDU device of the access network device, or the RLC device of the access network device, or the newly added subnet in the 5G network. The layer compresses or decompresses headers of multiple data packets mapped to the first DRB.

In the following, a specific description will be given by taking as an example that the PDCP device of the access network device performs header compression or decompression on multiple data packets mapped to the first DRB.

Optionally, as example one, the PDCP device of the access network device adopts a manner in which the header of the Ethernet frame structure does not perform header compression, and performs header compression or decompression on the multiple data packets.

Optionally, as an example two, the PDCP device of the access network device performs header compression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header according to the VLAN indication Or decompress, and perform header compression or decompression of the Ethernet frame structure without the VLAN header on the data packet of the Ethernet frame structure without the VLAN header.

Further, in the second example, the first PDU of the first PDCP device configured by the access network device carries first indication information, and the first indication information is used to indicate the first PDU of the opposite end of the first PDCP device For header compression using a header compression method that includes the VLAN header, or for header compression using a header compression method that does not include the VLAN header.

Further, in the second example, the first PDU of the first RLC device configured by the access network device carries first indication information, and the first indication information is used to indicate the first PDU of the opposite end of the first RLC device For header compression using a header compression method that includes the VLAN header, or for header compression using a header compression method that does not include the VLAN header.

Optionally, in the second example, the first indication information is carried in a reserved bit position in the first PDU; or the first indication information is carried in a newly added bit in the first PDU Domain.

Optionally, as example three, the PDCP device of the access network device adopts the method of constructing a virtual VLAN to perform header compression or decompression on the data packets of the Ethernet frame structure without the VLAN header among the multiple data packets compression;

The PDCP device of the access network device performs header compression or decompression on the data packets of the Ethernet frame structure with the VLAN header in the multiple data packets according to the VLAN mode.

Further, in the third example, the first PDU of the first PDCP device configured by the access network device carries first indication information, and the first indication information is used to indicate the first PDU of the opposite end of the first PDCP device For header compression using the header compression method of the virtual VLAN header or header compression without using the virtual VLAN header.

Further, in the third example, the first PDU of the first RLC device configured by the access network device carries first indication information, and the first indication information is used to indicate the first PDU of the opposite end of the first RLC device For header compression using the header compression method of the virtual VLAN header or header compression without using the virtual VLAN header.

Optionally, in the third example, the first indication information is carried in a reserved bit position in the first PDU; or the first indication information is carried in a newly added bit in the first PDU Domain.

Optionally, in the embodiment of the present application, before the access network device sends the first configuration information, the access network device determines the first configuration information according to the first information, and the first information includes a map mapped to the first configuration information. Data packet identification, data packet arrangement order, data packet transmission time, data packet, QoS data flow corresponding to the data packet, and VLAN indication of the QoS data flow corresponding to the data packet are included in the VLAN identification At least one of.

Optionally, the first information is reported by the terminal device, or the first information is instructed by the core network device.

Optionally, in this embodiment of the present application, the access network device receives the support capability for header compression and de-header compression of the entire Ethernet frame structure reported by the terminal device, or receives the terminal device separately The reported support capabilities for header compression and de-header compression in the Ethernet header and data column are used to indicate whether the terminal device supports header compression in the Ethernet frame structure and/or whether it supports Ethernet with VLAN headers Header compression of net frame structure.

Optionally, in the embodiment of the present application, header compression configuration may be performed on the header and the data field of the Ethernet frame structure respectively. In the specific configuration, you can refer to the reporting method of the support capability of the terminal device.

Optionally, in the embodiment of the present application, the header compression configuration may be performed on the entire Ethernet frame structure. In the specific configuration, you can refer to the reporting method of the support capability of the terminal device.

For example, if the terminal device reports the support capability for header compression and de-header compression of the entire Ethernet frame structure, the access network device configures the first DRB with the header of the Ethernet frame structure without marking. Header compression configuration, or the first DRB configuration supports or does not support the header compression configuration of the Ethernet structure header and data column, or the first DRB configuration supports or does not support the header of the Ethernet structure The compression configuration, or, the first DRB configuration supports or does not support the header compression configuration of the Ethernet structure containing the VLAN header. Correspondingly, the terminal device respectively performs header compression or decompression on the header and data column of the Ethernet frame structure, or performs header compression or decompression on the entire Ethernet frame structure according to the above configuration.

For another example, if the terminal device separately reports the header compression and de-header compression capabilities of the Ethernet header and the data column, the access network device configures the header of the Ethernet frame structure for the first DRB Perform header compression configuration separately from the data column, or do not configure the header compression configuration for the Ethernet structure header for the first DRB, or configure the header compression configuration for the Ethernet structure for the first DRB, Or, the first DRB configuration supports or does not support the header compression configuration of the Ethernet structure containing the VLAN header. Correspondingly, the terminal device respectively performs header compression or decompression on the header and data column of the Ethernet frame structure, or performs header compression or decompression on the entire Ethernet frame structure according to the above configuration.

It should be understood that the steps in the wireless communication method 300 can refer to the corresponding steps in the wireless communication method 200, and for the sake of brevity, details are not repeated here.

Therefore, in the embodiment of the present application, the access network device can configure multiple header compression configurations for the first DRB, so that the first DRB is simultaneously mapped with Ethernet frames including and excluding VLAN headers. In the case of a structured data packet, the terminal device can perform header compression or decompression based on multiple header compression configurations to improve header compression efficiency.

FIG. 8 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 8, the terminal device 400 includes:

The communication unit 410 is configured to receive first configuration information sent by the access network device, where the first configuration information is used to configure multiple header compression configurations for the first DRB;

The processing unit 420 is configured to perform header compression or decompression on the first DRB according to the first configuration information.

Optionally, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure SDU.

Optionally, the processing unit 420 is further configured to:

Map multiple data packets in the first DRB, the multiple data packets including data packets with an Ethernet frame structure with a VLAN header and data packets with an Ethernet frame structure without a VLAN header;

The PDCP device controlling the terminal device determines the data packet of the Ethernet frame structure with the VLAN header and/or the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets according to the VLAN instruction.

Optionally, the VLAN indication is indicated by the access network device, or the VLAN indication is obtained by the terminal device through data flow information interaction between layers.

Optionally, the processing unit 420 is specifically configured to:

The PDCP device that controls the terminal device uses the method of not performing header compression on the header of the Ethernet frame structure, and performs header compression or decompression on the multiple data packets.

Optionally, the processing unit 420 is specifically configured to:

According to the VLAN instruction, the PDCP device controlling the terminal device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header, and for the data packet without the VLAN header The header of the Ethernet frame structure data packet does not include the header compression or decompression of the Ethernet frame structure of the VLAN header.

Optionally, the processing unit 420 is further configured to:

The first PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate the opposite end of the first PDCP device. The first PDU uses a header compression method including a VLAN header for header Compressed or using a header compression method that does not include the VLAN header for header compression.

Optionally, the processing unit 420 is further configured to:

The first PDU configured with the first RLC device carries first indication information, and the first indication information is used to indicate the opposite end of the first RLC device. The first PDU uses a header compression method including a VLAN header for header Compressed or using a header compression method that does not include the VLAN header for header compression.

Optionally, the processing unit 420 is specifically configured to:

The PDCP device that controls the terminal device adopts the method of constructing a virtual VLAN, and performs header compression or decompression on the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets;

The PDCP device controlling the terminal device performs header compression or decompression on the data packets of the Ethernet frame structure with the VLAN header in the multiple data packets according to the VLAN mode.

Optionally, the processing unit 420 is further configured to:

The first PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate the opposite end of the first PDCP device. The first PDU uses the header compression method of the virtual VLAN header for header Compressed or header compression without using the virtual VLAN header.

Optionally, the processing unit 420 is further configured to:

The first PDU configured with the first RLC device carries first indication information, and the first indication information is used to indicate the opposite end of the first RLC device. The first PDU uses the header compression method of the virtual VLAN header for header Compressed or header compression without using the virtual VLAN header.

Optionally, the first indication information is carried in a reserved bit position in the first PDU; or the first indication information is carried in a newly added bit field in the first PDU.

Optionally, before the communication unit 410 receives the first configuration information,

The processing unit 420 is also used to obtain first information through data flow information interaction between layers. The first information includes data packet identifiers corresponding to multiple data packets mapped to the first DRB, data packet arrangement order, and data packet transmission Time, whether the data packet includes at least one of the VLAN identifier, the QoS data flow corresponding to the data packet, and the VLAN indication of the QoS data flow corresponding to the data packet;

The communication unit 410 is further configured to send the first information to the access network device, and the first information is used by the access network device or the core network device to determine the first configuration information; or

The communication unit 410 is further configured to send the first information to the core network device, and the first information is used for the core network device to determine the first configuration information.

Optionally, before the communication unit 410 receives the first configuration information, the communication unit 410 is further configured to report the overall header compression and de-header compression support capabilities of the Ethernet frame structure, or report separately The ability to support header compression and de-header compression for Ethernet headers and data fields is used to indicate whether the terminal device supports header compression of the Ethernet frame structure and/or whether it supports Ethernet frames with VLAN headers Structure header compression.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to implement the method shown in FIG. 2 respectively. For the sake of brevity, the corresponding process of the terminal equipment in 200 will not be repeated here.

FIG. 9 shows a schematic block diagram of an access network device 500 according to an embodiment of the present application. As shown in FIG. 9, the access network device 500 includes:

The communication unit 510 is configured to send first configuration information to the terminal device, where the first configuration information is used to configure multiple header compression configurations for the first DRB.

Optionally, the multiple header compression configurations include at least two of the following header compression configurations:

The header compression configuration of the Ethernet frame structure including the VLAN header,

The header compression configuration of the Ethernet frame structure without the VLAN header,

The header compression configuration of the header of the Ethernet frame structure,

The header compression configuration of the Ethernet frame structure SDU.

Optionally, the access network device 500 further includes:

The processing unit 520 is configured to map a plurality of data packets in the first DRB, and the plurality of data packets include data packets with an Ethernet frame structure with a VLAN header and an Ethernet frame structure without a VLAN header Data package

The processing unit 520 is also used to control the PDCP device of the access network device to determine, according to the VLAN instructions, the data packets of the Ethernet frame structure with the VLAN header and/or the data packets without the VLAN header among the multiple data packets. Data packet of the Ethernet frame structure.

Optionally, the VLAN indication is indicated by the core network device, or the VLAN indication is obtained by the access network device through a report from the terminal device.

Optionally, the processing unit 520 is further configured to:

The PDCP device that controls the access network device adopts a method in which the header of the Ethernet frame structure does not perform header compression, and performs header compression or decompression on the multiple data packets.

Optionally, the processing unit 520 is further configured to:

The PDCP device controlling the access network device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header according to the VLAN instruction, and whether The data packet of the Ethernet frame structure with the VLAN header performs header compression or decompression of the Ethernet frame structure without the VLAN header.

Optionally, the processing unit 520 is further configured to:

The first PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate the opposite end of the first PDCP device. The first PDU uses a header compression method including a VLAN header for header Compressed or using a header compression method that does not include the VLAN header for header compression.

Optionally, the processing unit 520 is further configured to:

The first PDU configured with the first RLC device carries first indication information, and the first indication information is used to indicate the opposite end of the first RLC device. The first PDU uses a header compression method including a VLAN header for header Compressed or using a header compression method that does not include the VLAN header for header compression.

Optionally, the processing unit 520 is further configured to:

The PDCP device that controls the access network device adopts the method of constructing a virtual VLAN, and performs header compression or decompression on the data packet of the Ethernet frame structure without the VLAN header among the multiple data packets;

The PDCP device controlling the access network device performs header compression or decompression on the data packets of the Ethernet frame structure with the VLAN header in the multiple data packets according to the VLAN mode.

Optionally, the processing unit 520 is further configured to:

The first PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate the opposite end of the first PDCP device. The first PDU uses the header compression method of the virtual VLAN header for header Compressed or header compression without using the virtual VLAN header.

Optionally, the processing unit 520 is further configured to:

The first PDU configured with the first RLC device carries first indication information, and the first indication information is used to indicate the opposite end of the first RLC device. The first PDU uses the header compression method of the virtual VLAN header for header Compressed or header compression without using the virtual VLAN header.

Optionally, the first indication information is carried in a reserved bit position in the first PDU; or the first indication information is carried in a newly added bit field in the first PDU. Optionally, before the communication unit 510 sends the first configuration information, the processing unit 520 is further configured to:

The first configuration information is determined according to the first information. The first information includes the data packet identifiers corresponding to the multiple data packets mapped to the first DRB, the data packet arrangement sequence, the data packet transmission time, the data packet, and the data packet corresponding The QoS data flow, and whether the VLAN indication of the QoS data flow corresponding to the data packet includes at least one of the VLAN identifiers.

Optionally, the first information is reported by the terminal device, or the first information is instructed by the core network device.

Optionally, before the communication unit 510 sends the first configuration information,

The communication unit 510 is also used to receive the overall header compression and de-header compression support capabilities of the Ethernet frame structure reported by the terminal device, and is used to indicate whether the terminal device supports the header compression of the Ethernet frame structure And/or whether it supports header compression of the Ethernet frame structure of the VLAN header;

The processing unit 520 is further configured to configure the header of the Ethernet frame structure for the first DRB without header compression configuration, or configure the first DRB to support or not support the header and data column of the Ethernet structure. Header compression configuration, or, the first DRB configuration supports or does not support the header compression configuration of the Ethernet structure, or the first DRB configuration supports or does not support the header of the Ethernet structure containing the VLAN header Compression configuration.

Optionally, before the communication unit 510 sends the first configuration information,

The communication unit 510 is also used to receive the support capability for header compression and de-header compression of the Ethernet header and data field reported by the terminal device, and is used to indicate whether the terminal device supports the Ethernet frame structure standard. Header compression and/or whether to support header compression of the Ethernet frame structure of the VLAN header;

The processing unit 520 is further configured to configure the header and the data field of the Ethernet frame structure for the first DRB to perform header compression configuration respectively, or not to configure the header compression configuration for the header of the Ethernet structure for the first DRB Or, configure a header compression configuration for the Ethernet structure for the first DRB, or configure a header compression configuration for the first DRB that supports or does not support the Ethernet structure that contains a VLAN header.

It should be understood that the access network device 500 according to the embodiment of the present application may correspond to the access network device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the access network device 500 are respectively for The corresponding process for implementing the access network device in the method 300 shown in FIG. 7 is not repeated here for brevity.

FIG. 10 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 10 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10, the communication device 600 may further include a memory 620. The processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or it may be integrated in the processor 610.

Optionally, as shown in FIG. 10, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be the access network device of the embodiment of the application, and the communication device 600 may implement the corresponding process implemented by the access network device in the various methods of the embodiments of the application. For the sake of brevity, This will not be repeated here.

Optionally, the communication device 600 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the application. For the sake of brevity , I won’t repeat it here.

Fig. 11 is a schematic structural diagram of a wafer according to an embodiment of the present application. The chip 700 shown in FIG. 11 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 11, the chip 700 may further include a memory 720. The processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the access network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the access network device in each method of the embodiment of the present application. For the sake of brevity, it will not be omitted here. Repeat.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-a-chip or a system-on-chip.

FIG. 12 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. As shown in FIG. 12, the communication system 800 includes a terminal device 810 and an access network device 820.

Wherein, the terminal device 810 can be used to implement the corresponding function implemented by the terminal device in the above method, and the access network device 820 can be used to implement the corresponding function implemented by the access network device in the above method. For simplicity, This will not be repeated here.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the above method embodiments can be completed through hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), a dedicated integrated circuit (Application Specific Integrated Circuit, ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA), or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random memory, flash memory, read-only memory, programmable read-only memory, or electrically readable, writable and programmable memory, registers, and other mature storage media in the field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache memory. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory ( Synchronous DRAM, SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Connection Dynamic Random Access Memory Body (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not limited to these and any other suitable types of memory. It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM). , DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the access network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the access network device in each method of the embodiment of the present application, for It's concise, so I won't repeat it here.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of this application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application , For the sake of brevity, I will not repeat it here.

The embodiment of the application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the access network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the access network device in each method of the embodiment of the present application. , I won’t repeat it here.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of this application, and the computer program instructions make the computer execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application, For the sake of brevity, I will not repeat them here.

The embodiment of the application also provides a computer program.

Optionally, the computer program can be applied to the access network device in the embodiment of the present application. When the computer program runs on the computer, the computer can execute the corresponding implementation of the access network device in the various methods of the embodiments of the present application For the sake of brevity, the process is not repeated here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer can execute each method in the embodiment of the present application. For the sake of brevity, the corresponding process is not repeated here.

A person of ordinary skill in the art may be aware that the units and algorithm steps described in the examples in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for convenience and concise description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or elements may be combined or may be Integrate into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms.

The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed to multiple network units . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several The instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: flash drives, removable hard drives, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc. that can store program codes Medium.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the patent application.

100: Communication system 110: terminal equipment 120: Access network equipment 130: core network equipment 200: method S210, S220: steps 300: method S310: Step 400: terminal equipment 410: Communication unit 420: Processing Unit 500: Access network equipment 510: Communication unit 600: Communication equipment 610: processor 620: memory 630: Transceiver 700: chip 710: processor 720: Memory 730: Input interface 740: output interface 800: communication system 810: terminal equipment 820: access network equipment

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Fig. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a V domain provided according to an embodiment of the present application.

Fig. 4 is a schematic diagram of another V domain provided according to an embodiment of the present application.

Fig. 5 is a schematic diagram of still another V domain provided according to an embodiment of the present application.

Fig. 6 is a schematic diagram of still another V domain provided according to an embodiment of the present application.

Fig. 7 is a schematic flowchart of another wireless communication method according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of an access network device according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a wafer provided according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication system according to an embodiment of the present application.

200: method

S210, S220: steps

Claims (20)

A wireless communication method, characterized by comprising: The terminal device receives the first configuration information sent by the access network device, where the first configuration information is used to configure multiple header compression configurations for the first data radio bearer DRB; The terminal device compresses or decompresses the header of the first DRB according to the first configuration information. The method according to item 1 of the scope of patent application, characterized in that the multiple header compression configurations include at least two of the following header compression configurations: The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network, The header compression configuration of the Ethernet frame structure without the VLAN header, The header compression configuration of the header of the Ethernet frame structure, The header compression configuration of the Ethernet frame structure service data unit SDU. The method according to item 2 of the scope of patent application, characterized in that, the method further includes: The terminal device maps multiple data packets in the first DRB, and the multiple data packets include data packets with an Ethernet frame structure with a VLAN header and Ethernet frame structures without a VLAN header. Data package According to the VLAN indication, the PDCP device of the terminal device determines the data packet of the Ethernet frame structure with the VLAN header and/or the Ethernet frame structure without the VLAN header among the multiple data packets Information package. The method according to item 3 of the scope of patent application, characterized in that the VLAN indication is indicated by the access network device, or the VLAN indication is obtained by the terminal device through data flow information interaction between layers of. The method according to item 4 of the scope of patent application, wherein the terminal device performs header compression or decompression on the first DRB according to the first configuration information, including: The PDCP device of the terminal device adopts a manner in which the header of the Ethernet frame structure does not perform header compression, and performs header compression or decompression on the multiple data packets. The method according to item 4 of the scope of patent application, wherein the terminal device performs header compression or decompression on the first DRB according to the first configuration information, including: According to the VLAN instruction, the PDCP device of the terminal device performs header compression or decompression of the Ethernet frame structure including the VLAN header on the data packet of the Ethernet frame structure with the VLAN header, and the The data packet of the Ethernet frame structure of the VLAN header is compressed or decompressed without the header of the Ethernet frame structure of the VLAN header. The method according to item 6 of the scope of patent application, characterized in that, the method further includes: The first protocol data unit PDU of the first PDCP device configured by the terminal device carries first indication information, and the first indication information is used to indicate to the opposite end of the first PDCP device that the first PDU adopts VLAN The header compression method of the header is used for header compression or a header compression method that does not include the VLAN header for header compression. The method according to item 6 of the scope of patent application, characterized in that, the method further includes: The first PDU configured by the terminal device of the first radio link control RLC device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU adopts The header compression method of the VLAN header is a header compression method or a header compression method that does not include the VLAN header. The method according to item 7 or 8 of the scope of patent application, characterized in that: The first indication information is carried on a reserved bit position in the first PDU; or The first indication information is carried in a newly added bit field in the first PDU. The method according to any one of items 1 to 8 in the scope of patent application, characterized in that, before the terminal device receives the first configuration information, the method further includes: The terminal device obtains first information through data flow information interaction performed between layers, and the first information includes data packet identifiers corresponding to multiple data packets mapped to the first DRB, data packet arrangement order, and data packet transmission time 1. Whether the data packet includes at least one of the VLAN identifier, the QoS data flow corresponding to the data packet, and the VLAN indication of the QoS data flow corresponding to the data packet; The terminal device sends the first information to the access network device, where the first information is used by the access network device or the core network device to determine the first configuration information; or The terminal device sends the first information to the core network device, and the first information is used by the core network device to determine the first configuration information. A wireless communication method, characterized by comprising: The access network device sends first configuration information to the terminal device, where the first configuration information is used to configure multiple header compression configurations for the first data radio bearer DRB. A terminal device, characterized in that it comprises: The communication unit is configured to receive first configuration information sent by the access network device, where the first configuration information is used to configure multiple header compression configurations for the first data radio bearer DRB; The processing unit is configured to perform header compression or decompression on the first DRB according to the first configuration information. The terminal device according to item 12 of the scope of patent application, characterized in that the multiple header compression configurations include at least two of the following header compression configurations: The header compression configuration of the Ethernet frame structure including the VLAN header of the virtual local area network, The header compression configuration of the Ethernet frame structure without the VLAN header, The header compression configuration of the header of the Ethernet frame structure, The header compression configuration of the Ethernet frame structure service data unit SDU. The terminal device according to item 13 of the scope of patent application, wherein the processing unit is further configured to: Mapping a plurality of data packets in the first DRB, the plurality of data packets including a data packet of an Ethernet frame structure with a VLAN header and a data packet of an Ethernet frame structure without a VLAN header; The PDCP device, which controls the packet data aggregation protocol of the terminal device, determines, according to the VLAN instruction, the data packet with the VLAN header and/or the Ethernet frame without the VLAN header among the multiple data packets Structure of the package. The terminal device according to item 14 of the scope of patent application, characterized in that the VLAN indication is indicated by the access network device, or the VLAN indication is the data flow information interaction of the terminal device through interlayers Acquired. The terminal device according to item 15 of the scope of patent application, characterized in that the processing unit is specifically configured to: The PDCP device controlling the terminal device adopts a method of constructing a virtual VLAN, and performs header compression or decompression on the data packet of the Ethernet frame structure without a VLAN header among the multiple data packets; The PDCP device that controls the terminal device performs header compression or decompression on the data packets of the Ethernet frame structure with the VLAN header in the multiple data packets according to the VLAN mode. The terminal device according to item 16 of the scope of patent application, wherein the processing unit is further configured to: The first PDU configured with the first PDCP device carries first indication information, and the first indication information is used to indicate to the peer of the first PDCP device that the first PDU is a header compression method using a virtual VLAN header Perform header compression or use header compression methods that do not use virtual VLAN headers. The terminal device according to item 16 of the scope of patent application, wherein the processing unit is further configured to: The first PDU configured with the first radio link control RLC device carries first indication information, and the first indication information is used to indicate to the opposite end of the first RLC device that the first PDU is a virtual VLAN header The header compression method performs header compression or the header compression method that does not use the virtual VLAN header. The terminal device according to item 17 or 18 of the scope of patent application is characterized in that: The first indication information is carried on a reserved bit position in the first PDU; or The first indication information is carried in a newly added bit field in the first PDU. The terminal device according to any one of items 12 to 18 of the scope of patent application, characterized in that, before the communication unit receives the first configuration information, the communication unit is also used to report to the Ethernet The header compression and de-header compression support capabilities of the overall frame structure, or the support capabilities for header compression and de-header compression of the Ethernet header and data column are reported separately, to indicate whether the terminal device supports B The header compression of the Ethernet frame structure and/or whether to support the header compression of the Ethernet frame structure of the VLAN header.

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