WO2020107428A1

WO2020107428A1 - Sidelink communication method and terminal device

Info

Publication number: WO2020107428A1
Application number: PCT/CN2018/118652
Authority: WO
Inventors: 卢前溪; 赵振山; 林晖闵
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-04
Also published as: CN112470532B; CN112470532A

Abstract

Embodiments of the present application disclose a sidelink communication method and a terminal device. The method comprises: a first terminal device transmitting sidelink data by means of a first communication system and/or a second communication system. In the embodiments of the present application disclosing the method and the terminal device, the terminal device, being capable of performing transmission in a plurality of communication systems, can flexibly choose to transmit sidelink data by means of at least one communication system therefrom.

Description

Side communication method and terminal equipment

Technical field

Embodiments of the present application relate to the field of communications, and in particular, to a side communication method and terminal device.

Background technique

The IoV system is based on a long-term evolution (LTE)-device-to-device (D2D) sidelink (SL) transmission technology that communicates data with traditional LTE systems The way of receiving or sending through the base station is different. The Internet of Vehicles system uses a terminal-to-terminal direct communication method, so it has higher spectrum efficiency and lower transmission delay.

At present, in an IoV system, the terminal may have the transmission capabilities of multiple communication systems, so how to use the multiple communication systems for the terminal to transmit side data is a problem that needs to be solved.

Summary of the invention

Embodiments of the present application provide a side communication method and a terminal device, which can solve the problem of how the terminal device transmits side data when it has transmission capabilities of multiple communication systems.

In a first aspect, a method for side communication is provided. The method includes: a first terminal device transmits side data through a first communication system and/or a second communication system.

In a second aspect, a method for side communication is provided. The method includes: a second terminal device receives side data through a first communication system and/or a second communication system.

In a third aspect, a terminal device is provided for performing the method in the first aspect or its implementations.

Specifically, the terminal device includes a functional module for performing the method in the above-mentioned first aspect or various implementations thereof.

According to a fourth aspect, there is provided a terminal device, configured to execute the method in the above-mentioned second aspect or various implementations thereof.

Specifically, the terminal device includes a functional module for performing the method in the above-mentioned second aspect or various implementations thereof.

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 methods in the first aspect to the second aspect or the respective implementations thereof.

According to a sixth aspect, a chip is provided for implementing any one of the above-mentioned first to second aspects or the method in each of the implementations thereof.

Specifically, the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes any one of the first aspect to the second aspect described above or its respective implementations method.

In a seventh aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method in any one of the first to second aspects described above or in various implementations thereof.

According to an eighth aspect, a computer program product is provided, including computer program instructions, which cause the computer to execute the method in any one of the above first to second aspects or various implementations thereof.

In a ninth aspect, a computer program is provided, which when run on a computer, causes the computer to execute the method in any one of the above first to second aspects or the respective implementations thereof.

Through the above technical solution, when the terminal device has the transmission capabilities of multiple communication systems, the terminal device can flexibly choose to transmit side data through at least one communication system.

BRIEF DESCRIPTION

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

FIG. 2 is a schematic diagram of a side communication system provided by an embodiment of the present application.

FIG. 3 is a schematic block diagram of a method for side communication provided by an embodiment of the present application.

4 is a structural block diagram of a method for side communication in an embodiment of the present application.

FIG. 5 is another structural block diagram of the side communication method in the embodiment of the present application.

FIG. 6 is another schematic block diagram of a method for side communication provided by an embodiment of the present application.

7 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 8 is another schematic block diagram of the terminal device provided by the embodiment of the present application.

FIG. 9 is another schematic block diagram of the terminal device provided by the embodiment of the present application.

10 is a schematic block diagram of a chip provided by an embodiment of the present application.

11 is a schematic block diagram of a communication system provided by an embodiment of the present application.

detailed description

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, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, such as: Global System of Mobile (GSM) system, Code Division Multiple Access (CDMA) system, wideband code Wideband Code (Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), long-term evolution LTE system, LTE Frequency Division Duplex (FDD) system, LTE time division duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (UMTS), Global Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) or future 5G System etc.

In particular, the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technology, such as sparse code multiple access (Sparse Code Multiple Access, SCMA) system and low density signature (Low Density (Signature, LDS) system, etc. Of course, the SCMA system and LDS system can also be called other names in the communication field; further, the technical solutions of the embodiments of the present application can be applied to multi-carriers using non-orthogonal multiple access technology Transmission systems, such as Orthogonal Frequency Division Multiplexing (OFDM), Filter Bank Multi-Carrier (FBMC), Generalized Frequency Division Multiplexing (Generalized) Frequency, Division Multiplexing (GFDM), Filtered-OFDM, F-OFDM, etc.

The terminal equipment in the embodiments of the present application may refer to user equipment (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication equipment, user agent or user device. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or public land mobile communications networks (PLMN) in the future evolution Terminal devices and the like are not limited in the embodiments of the present application.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a base station (NodeB, NB in WCDMA system) ), it can also be an evolved base station (Evolutional NodeB, eNB or eNodeB) in the LTE system, it can also be a wireless controller in the cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network equipment The relay station, the access point, the in-vehicle device, the wearable device, the network device in the future 5G network or the network device in the future evolved PLMN network, etc. are not limited in the embodiments of the present application.

1 and 2 are schematic diagrams of an application scenario according to an embodiment of the present application. FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the wireless communication system may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this. In addition, the wireless communication system may also include other network entities such as mobile management entity (Mobile Management Entity, MME), service gateway (Serving Gateway, S-GW), packet data network gateway (Packet Data Network, Gateway, P-GW), etc. However, the embodiments of the present application are not limited to this.

Specifically, the terminal device 20 and the terminal device 30 can communicate in a D2D communication mode. During the D2D communication, the terminal device 20 and the terminal device 30 directly communicate through a D2D link (Sidelink (SL)). For example, as shown in FIG. 1 or FIG. 2, the terminal device 20 and the terminal device 30 directly communicate through a side link. In FIG. 1, the terminal device 20 and the terminal device 30 communicate through a side link, and transmission resources are allocated by the network device; in FIG. 2, the terminal device 20 and the terminal device 30 pass a side link For communication, the transmission resources are selected by the terminal equipment, and there is no need for the network equipment to allocate transmission resources.

The D2D communication mode can be applied to vehicle-to-vehicle (V2V) communication or vehicle to other equipment (Vehicle to Everything, V2X) communication. In V2X communication, X can refer to any device with wireless reception and transmission capabilities, such as but not limited to slow-moving wireless devices, fast-moving in-vehicle devices, or network control nodes with wireless transmission and reception capabilities. It should be understood that the embodiment of the present application is mainly applied to the scenario of V2X communication, but can also be applied to any other D2D communication scenario, which is not limited in this embodiment of the present application.

In Release-14 of the 3GPP protocol, two transmission modes are defined, namely transmission mode 3 (mode 3) and transmission mode 4 (mode 4). The transmission resources of the terminal equipment using transmission mode 3 are allocated by the base station, and the terminal equipment transmits data on the side link according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the terminal equipment or can be the terminal The device allocates semi-statically transmitted resources. If the terminal device using the transmission mode 4 has interception capability, data is transmitted by means of sensing and reservation. If the terminal device does not have interception capability, the transmission resource is randomly selected in the resource pool. A terminal device with listening capability obtains a set of available resources in the resource pool by listening, and the terminal device randomly selects a resource from the set for data transmission. Because the services in the IoV system have periodic characteristics, the terminal device usually adopts a semi-static transmission method, that is, after the terminal device selects a transmission resource, it will continue to use the resource in multiple transmission cycles, thereby reducing resource re-use Selection and the probability of resource conflicts. The terminal device will carry the information reserved for the next transmission resource in the control information transmitted this time, so that other terminal devices can determine whether this resource is reserved and used by the terminal device by detecting the control information of the terminal device. The purpose of reducing resource conflicts.

In Rel-16, V2X technology is introduced into NR. For LTE and NR dual-mode UEs, LTE-V2X and NR-V2X transmission capabilities are both available, so how does the UE transmit side data?

This article is intended to solve the above problems. As shown in FIG. 3, an embodiment of the present application provides a side communication method 100. The first terminal device in the method 100 may be any terminal device as a sending end in FIG. 1 or FIG. 2, and the method 100 includes Part or all of the following:

S110. The first terminal device sends side data through the first communication system and/or the second communication system.

It should be noted that the first terminal device has transmission capabilities of multiple communication systems. Although two communication systems are used as an example here, the embodiments of the present application are not limited thereto. The communication system may be the GSM system, GPRS system, LTE system, and NR system described above. For convenience of description, this article takes the first communication system as an LTE system and the second communication system as an NR system as an example. However, those skilled in the art should understand that this is not intended to be limiting.

That is to say, although the first terminal device has the transmission capabilities of the LTE system and the NR system, the first terminal device can transmit the side data through the LTE system, and the first terminal device can also transmit the side data through the NR system. The first terminal device can also transmit side data through the LTE system and the NR system at the same time.

If the first terminal device chooses to send side data to the second terminal device through the LTE system, the LTE Packet Data Convergence Protocol (PDCP) entity of the first terminal device can submit the data to the LTE wireless link control ( Radio Link (Control, RLC) entity, and then LTE RLC entity submits the data to the LTE Media Access Control (MAC) entity, the LTE MAC entity sends the data to the LTE MAC entity of the second terminal device, the second terminal device The LTE MAC entity in turn submits the data from the LTE RLC entity to the LTE PDCP entity.

If the first terminal device chooses to send side data to the second terminal device through the NR system, the NR PDCP entity of the first terminal device can submit the data to the NR RLC entity, and then the NR RLC entity delivers the data to the NR MAC entity, NR The MAC entity sends the data to the NR MAC entity of the second terminal device, and the NR MAC entity of the second terminal device sequentially submits the data from the NR RLC entity to the NR PDCP entity.

When the first terminal device chooses to use the LTE PDCP entity to send side data, the LTE PDCP entity may also submit the data to the NR RLC entity, and then the NR PLC entity may submit the data to the NR MAC entity. Similarly, when the first terminal device chooses to use the NR PDCP entity to send side data, the NR PDCP entity may also submit the data to the LTE RLC entity, and then the LTE RLC entity may submit the data to the LTE MAC entity.

If the first terminal device chooses to send side data to the second terminal device through the LTE system and the NR system at the same time, it can be sent in the three ways shown in FIG. 4 and FIG. 5.

As shown in the right diagram of FIG. 4, the first terminal device may choose to use the LTE PDCP entity to send side data, the LTE PDCP entity may submit the data to the LTE RLC entity and the NR RLC entity, respectively, and then the LTE RLC entity may transfer the data from the LTE PDCP entity The received data is submitted to the LTE MAC entity, and the NR RLC entity can submit the data received from the LTE PDCP entity to the NR MAC entity. The LTE MAC entity sends data to the LTE MAC entity of the second terminal device, and the LTE MAC entity of the second terminal device then sequentially submits the data from the LTE RLC entity to the LTE PDCP entity. The NR MAC entity sends data to the NR MAC entity of the second terminal device, and the NR MAC entity of the second terminal device then sequentially submits the data from the NR RLC entity to the LTE PDCP entity.

As shown in the left diagram of FIG. 4, the first terminal device can also choose to use the NR PDCP entity to send side data, and the NR PDCP entity can submit the data to the LTE RLC entity and the NR RLC entity, respectively, and then the LTE RLC entity can transfer data from the NR PDCP The data received by the entity is submitted to the LTE MAC entity, and the NR RLC entity can submit the data received from the NR PDCP entity to the NR MAC entity. The LTE MAC entity sends data to the LTE MAC entity of the second terminal device, and the LTE MAC entity of the second terminal device then sequentially submits the data from the LTE RLC entity to the NR PDCP entity. The NR MAC entity sends the data to the NR MAC entity of the second terminal device, and the NR MAC entity of the second terminal device sequentially submits the data from the NR RLC entity to the NR PDCP entity.

As shown in FIG. 5, the first terminal device may choose to use the LTE PDCP entity and the NR PDCP entity to send side data. Specifically, the LTE PDCP entity can submit the data to the LTE RLC entity, and then the LTE RLC entity can submit the data received from the LTE PDCP entity to the LTE MAC entity, and the LTE MAC entity can send the received data to the second terminal device. The LTE MAC entity, and then the LTE MAC entity of the second terminal device, in turn, submits the data from the LTE RLC entity to the LTE PDCP entity. The NR PDCP entity can submit the data to the NR RLC entity, and then the NR RLC entity can submit the data received from the NR PDCP entity to the NR MAC entity, and the NR MAC entity can send the received data to the NR MAC entity of the second terminal device , And then the NR MAC entity of the second terminal device sequentially submits the data from the NR RLC entity to the NR PDCP entity.

Optionally, the first terminal device may also select the NR PDCP entity to send the sideline data. After the data is submitted from the NR PDCP entity to the NR RLC entity, the NR RLC entity submits the data to the LTE MAC entity and the NR MAC entity respectively. After receiving the data, the LTE MAC entity and the NR MAC entity of the second terminal device respectively submit the data to the NR RLC entity, and then the NR RLC entity can submit the data to the NR PDCP entity.

Optionally, the second terminal device may also select the LTE PDCP entity to send the side data. After the data is submitted from the LTE PDCP entity to the LTE RLC entity, the LTE RLC entity submits the data to the LTE MAC entity and the NR MAC entity, respectively. After receiving the data, the LTE MAC entity and the NR MAC entity of the second terminal device submit the data to the LTE RLC entity, and then the LTE RLC entity can submit the data to the LTE PDCP entity.

It should be understood that, when the first terminal device selects to transmit side data through the LTE system and the NR system, no matter which protocol layer is used to submit the data separately, it can be understood that the side data is sent through the two communication systems.

Optionally, if the first terminal device selects LTE PDCP entity or NR PDCP entity to send side data, it may perform compression and/or encryption function first, and then perform data copy function; if the first terminal device selects LTE PDCP entity and NR PDCP When an entity sends side data, it can perform the data copy function first, and then perform the compression and/or encryption functions.

For example, when the first terminal device chooses to use the LTE PDCP entity to send the side data, the LTE PDCP entity may first compress and/or encrypt the side data to be sent. If the LTE PDCP entity needs to separate the LTE RLC entity and the NR RLC entity After submitting the data, the LTE PDCP entity can copy the compressed and/or encrypted data, and can submit the copied data to the LTE RLC entity and NR RLC entity, respectively. For the second terminal device, after the LTE RLC entity and the NR RLC entity of the second terminal device respectively receive the data sent by the first terminal device, the LTE RLC entity and the NR RLC entity both submit the data to the LTE PDCP entity, LTE PDCP The entity can decrypt and/or decompress the received data.

For another example, when the first terminal device selects to use the NR PDCP entity to send side data, the NR PDCP entity may first compress and/or encrypt the side data to be sent. If the NR PDCP entity wants to send the LTE RLC entity and the NR RLC entity By submitting the data separately, the NR PDCP entity can copy the compressed and/or encrypted data, and can submit the copied data to the LTE RLC entity and the NR RLC entity, respectively. For the second terminal device, after the LTE RLC entity and the NR RLC entity of the second terminal device respectively receive the data sent by the first terminal device, the LTE RLC entity and the NR RLC entity both submit the data to the NR PDCP entity, NR PDCP The entity can decrypt and/or decompress the received data.

For another example, when the first terminal device selects to use the LTE PDCP entity and the NR PDCP entity to send side data, the first terminal device may first copy the data to be sent, for example, the first terminal device may use the LTE PDCP entity or the NR PDCP entity Copy the data to be sent, and then the LTE PDCP entity and the NR PDCP entity respectively compress and/or encrypt the copied data. The LTE PDCP entity and the NR PDCP entity can send their respective compressed and/or encrypted data to their respective RLC entities. After the LTE PDCP entity and the NR PDCP entity of the second terminal device receive the data sent by the first terminal device, they can decompress and/or decrypt the received data respectively.

It should be noted that the data sent to the LTE RLC entity and the NR RLC entity may be the same data, that is, copied data, or different data packets belonging to the same service or the same data stream. For the receiving end, that is, the second terminal device in this article, if the data received by the LTE MAC entity and the data received by the NR MAC entity are the same data, then the second terminal device needs to receive the data and NR received by the LTE MAC entity The data received by the MAC entity is subjected to repeated packet processing; if the data received by the LTE MAC entity and the data received by the MAC entity belong to the same service or the same data stream, then the second terminal device needs to process the data received by the LTE MAC entity and the NR MAC The data received by the entity is reordered.

Those skilled in the art understand that, for the sending end, the upper layer protocol data unit (Protocol Data Unit, PDU) is the lower layer service data unit (Service Data Unit, SDU). The SDUs received at each layer can be encapsulated to form PDUs.

In terms of MAC PDU, a MAC PDU may include a MAC header and one or more MAC subPDUs. In the embodiment of the present application, the LTE MAC entity of the first terminal device may be the encapsulated SDU, that is, the side data mentioned in this article, to form a first PDU, and the NR MAC entity of the first terminal device It is also possible to encapsulate the copied SDU to form a second PDU, and vice versa.

Optionally, the target address and/or source address used by the first PDU and the second PDU may be the same, so that after the second terminal device receives the first PDU and the second PDU, the first PDU can be determined The PDU and the second PDU are associated data, and then the second terminal device can perform corresponding processing on the first PDU and the second PDU.

Further, LTE logical channels and NR logical channels can be mapped. For example, assume that the LTE logical channels are 1, 2, 3, and 4, and the NR logical channels are A, B, C, and D, where the mapping relationship between the two can be as shown in Table 1.

Table 1

LTE逻辑信道LTE logical channel	NR逻辑信道NR logical channel
11	AA
22	BB
33	CC
44	DD

The second terminal device may acquire the mapping relationship between the LTE logical channel and the NR logical channel from a pre-stored or through an instruction of the first terminal. As shown in Table 1, assuming that the first PDU received by the second terminal device corresponds to LTE logical channel 1, and the second PDU received by the second terminal device corresponds to NR logical channel A, then the second terminal device may consider The first PDU and the second PDU are associated data, that is, it can be considered to include at least one same upper layer service. For example, it can be considered that the first PDU and the second PDU include the same data, that is, copied data. For another example, it can be considered that the first PDU and the second PDU are different data packets belonging to the same service or the same data stream. For the former, the second terminal device can perform repeated packet processing; and for the latter, the second terminal device can perform reordering processing.

Similarly, as shown in Table 1, assuming that the first PDU received by the second terminal device corresponds to LTE logical channel 2, and the second PDU received by the second terminal device corresponds to NR logical channel D, then the second terminal The device may consider that the first PDU and the second PDU are not associated data, and may process the two separately.

Optionally, the mapping relationship between the LTE logical channel and the NR logical channel can be indicated by at least one of the following information: the source address and the target address, the logical channel identifier (LCID), the RLC packet header, and PDCP First-class message. Optionally, the MAC PDU sent by the MAC entity of the first terminal device to the second terminal device may carry the foregoing various information. After the second terminal device obtains any information from the received LTE MAC PDU and NR MAC PDU, the mapping relationship can be used to determine whether the two belong to associated data.

It should be understood that the embodiments of the present application describe in detail that the terminal device has the transmission capabilities of two communication systems, and take the LTE system and the NR system as examples, and it is also mentioned above that the terminal device may have transmission capabilities of multiple communication systems , And is not limited to LTE system and NR system, for example, may be a future communication system.

FIG. 6 is a schematic block diagram of a side communication method 200 according to an embodiment of the present application. The method may be performed by a terminal device as a receiving end in FIG. 1 or FIG. 2, as shown in FIG. 6, the method 200 includes some or all of the following:

S210. The second terminal device receives the side data through the first communication system and/or the second communication system.

Optionally, in the embodiment of the present application, the second terminal device receives side data through the first communication system and the second communication system, including: the second terminal device is located in the first of the first communication system The protocol layer or the first protocol layer of the second communication system receives side data submitted by the second protocol layer of the first communication system and side data submitted by the second protocol layer of the second communication system, wherein , The first protocol layer is an upper layer of the second protocol layer.

Optionally, in the embodiment of the present application, the method further includes: the second terminal device is connected to the slave at the first protocol layer of the first communication system or the first protocol layer of the second communication system. The side data received by the second protocol layer of the first communication system and the side data received from the second protocol layer of the second communication system are decompressed and/or decrypted.

Optionally, in the embodiment of the present application, the second terminal device receives side data through the first communication system and the second communication system, including: the second terminal device is located in the first of the first communication system The protocol layer receives side data submitted by the second protocol layer of the first communication system, and receives side data submitted by the second protocol layer of the second communication system at the first protocol layer of the second communication system , Where the first protocol layer is an upper layer of the second protocol layer.

Optionally, in the embodiment of the present application, the method further includes: the second terminal device receives, at the first protocol layer of the first communication system, the received data from the second protocol layer of the first communication system. The side data is decompressed and/or decrypted, and the side data received from the second protocol layer of the second communication system is decompressed and/or decrypted at the first protocol layer of the second communication system.

Optionally, in the embodiment of the present application, the first protocol layer is a packet data aggregation protocol PDCP layer, and the second protocol layer is a radio link control RLC layer.

Optionally, in the embodiment of the present application, the method further includes: the second terminal device determining the side data received at the media access control MAC layer of the first communication system and the second communication The side data received by the MAC layer of the system includes at least one same upper layer service.

Optionally, in the embodiment of the present application, the second terminal device determines the sideline data received at the MAC layer of the first communication system and the sideline received at the MAC layer of the second communication system The data includes at least one same upper-layer service, including: the second terminal device determines, according to the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system, the The side data received by the MAC layer and the side data received at the MAC layer of the second communication system include at least one same upper layer service.

Optionally, in the embodiment of the present application, the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system is indicated by at least one of the following information: the target address of the side data, The source address of the side data, the logical channel identifier LCID, the RLC header, and the PDCP header.

Optionally, in the embodiment of the present application, the first communication system is long-term evolution LTE, and the second communication system is a new wireless NR.

It should be understood that the interaction and related characteristics and functions between the second terminal device and the first terminal device described by the second terminal device correspond to the related characteristics and functions of the first terminal device. That is, what message the second terminal device sends to the first terminal device, and the first terminal device receives the corresponding message from the second terminal device.

It should also be understood that, in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean that the execution order is sequential, and the execution order of each process should be determined by its function and inherent logic, and should not be implemented in this application The implementation process of the examples constitutes no limitation.

The side communication method according to an embodiment of the present application has been described in detail above. The device for side communication according to an embodiment of the present application will be described below with reference to FIGS. Device embodiment.

FIG. 7 shows a schematic block diagram of the terminal device 300 according to an embodiment of the present application. The terminal device 300 is a first terminal device. As shown in FIG. 7, the terminal device 300 includes:

The transceiver unit 310 is configured to send side data through the first communication system and/or the second communication system.

Optionally, in the embodiment of the present application, the transceiver unit is specifically configured to: send the first communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system The second protocol layer and the second protocol layer of the second communication system send the side data, wherein the first protocol layer is an upper layer of the second protocol layer.

Optionally, in the embodiment of the present application, the transceiver unit is specifically configured to: send the sideline data to the second protocol layer of the first communication system at the first protocol layer of the first communication system, And sending the side data at the first protocol layer of the second communication system to the second protocol layer of the second communication system, where the first protocol layer is the last one of the second protocol layer Floor.

Optionally, in the embodiment of the present application, the terminal device further includes: a processing unit, configured to be opposite to the first protocol layer of the first communication system or the first protocol layer of the second communication system Side data sent by the second protocol layer of the first communication system and the second protocol layer of the second communication system are encrypted and/or compressed.

Optionally, in the embodiment of the present application, the processing unit is further configured to: perform a data copy function at the first protocol layer of the first communication system or the first protocol layer of the second communication system.

Optionally, in the embodiment of the present application, the processing unit is further configured to: perform, at the first protocol layer of the first communication system, side data sent to the second protocol layer of the first communication system Encryption and/or compression, and encrypting and/or compressing side data sent to the second protocol layer of the second communication system at the first protocol layer of the second communication system.

Optionally, in the embodiment of the present application, the processing unit is further configured to: perform, at the first protocol layer of the first communication system, side data sent to the second protocol layer of the first communication system Encrypting and/or compressing, and performing the function of copying data before the first protocol layer of the second communication system encrypts and/or compresses the side data sent to the second protocol layer of the second communication system.

Optionally, in the embodiment of the present application, the processing unit is specifically configured to: perform a data copy function at the first protocol layer of the first communication system or at the first protocol layer of the second communication system.

Optionally, in the embodiment of the present application, the terminal device further includes: a processing unit, configured to encapsulate the MAC layer of the media access control of the first communication system and deliver the RLC layer of the first communication system The side data of the server forms a first protocol data unit PDU; the MAC layer of the second communication system encapsulates the side data delivered by the RLC layer of the second communication system to form a second PDU.

Optionally, in the embodiment of the present application, the first PDU and the second PDU have the same target address or the same source address.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the first 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 300 are respectively for implementing the method of FIG. 3 For the sake of brevity, the corresponding process of the first terminal device in the system will not be repeated here.

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

The transceiver unit 410 is configured to receive side data through the first communication system and/or the second communication system.

Optionally, in the embodiment of the present application, the transceiver unit is specifically configured to receive the first communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system The side data submitted by the second protocol layer and the side data submitted by the second protocol layer of the second communication system, wherein the first protocol layer is an upper layer of the second protocol layer.

Optionally, in the embodiment of the present application, the terminal device further includes: a processing unit, configured to pair the slave at the first protocol layer of the first communication system or the first protocol layer of the second communication system The side data received by the second protocol layer of the first communication system and the side data received from the second protocol layer of the second communication system are decompressed and/or decrypted.

Optionally, in the embodiment of the present application, the transceiving unit is specifically configured to: receive side data submitted by the second protocol layer of the first communication system at the first protocol layer of the first communication system, and Receiving side data submitted by the second protocol layer of the second communication system at the first protocol layer of the second communication system, where the first protocol layer is an upper layer of the second protocol layer.

Optionally, in the embodiment of the present application, the terminal device further includes: a processing unit configured to receive, at the first protocol layer of the first communication system, the received from the second protocol layer of the first communication system The side data is decompressed and/or decrypted, and the side data received from the second protocol layer of the second communication system is decompressed and/or decrypted at the first protocol layer of the second communication system.

Optionally, in the embodiment of the present application, the terminal device further includes: a processing unit, configured to determine the side data received at the media access control MAC layer of the first communication system and the second communication The side data received by the MAC layer of the system includes at least one same upper layer service.

Optionally, in the embodiment of the present application, the processing unit is specifically configured to: determine the first communication according to the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system The side data received by the MAC layer of the system and the side data received at the MAC layer of the second communication system include at least one same upper layer service.

Optionally, in the embodiment of the present application, the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system is indicated by at least one of the following information: a target address of side data, The source address of the side data, the logical channel identifier LCID, the RLC header, and the PDCP header.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the second terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the units in the terminal device 400 are respectively for implementing the method of FIG. 6 For the sake of brevity, the corresponding process of the second terminal device in the system will not be repeated here.

As shown in FIG. 9, an embodiment of the present application further provides a terminal device 500. The terminal device 500 may be the terminal device 300 of FIG. Content. The terminal device 500 may also be the terminal device 400 in FIG. 7, which can be used to execute the content of the second terminal device corresponding to the method 200 in FIG. 6. The terminal device 500 shown in FIG. 9 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiments of the present application.

Optionally, as shown in FIG. 9, the terminal device 500 may further include a memory 520. The processor 510 can call and run a computer program from the memory 520 to implement the method in the embodiments of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, as shown in FIG. 9, the terminal device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.

Among them, the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, and the number of antennas may be one or more.

Optionally, the terminal device 500 may be the terminal device of the embodiment of the present application, and the terminal device 500 may implement the corresponding process implemented by the first terminal device in each method of the embodiment of the present application. Repeat.

In a specific embodiment, the processing unit in the terminal device 300/terminal device 400 may be implemented by the processor 510 in FIG. 9. The transceiver unit in the terminal device 300/terminal device 400 may be implemented by the transceiver 530 in FIG. 9.

10 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 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 embodiments of the present application.

Optionally, as shown in FIG. 10, the chip 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 embodiments of the present application.

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

Optionally, the chip 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

Optionally, the chip 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chips, system chips, chip systems, or system-on-chip chips.

FIG. 11 is a schematic block diagram of a communication system 700 provided by an embodiment of the present application. As shown in FIG. 11, the communication system 700 includes a first terminal device 710 and a second terminal device 720.

The first terminal device 710 may be used to implement the corresponding functions implemented by the first terminal device in the above method, and the second terminal device 720/network device 720 may be used to implement the second terminal device/ in the above method For the sake of simplicity, the corresponding functions implemented by the network device will not be repeated here.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes an associated object, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, exist alone B these three cases. In addition, the character “/” in this article generally indicates that the related object is a “or” relationship.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an existing programmable gate array (Field Programmable Gate Array, FPGA), or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers. 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 volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically 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. By way of example but not limitation, 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 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 (Synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not limiting, for example, the memory in the embodiments 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) 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) and so on. That is to say, the memories in the embodiments of the present application are intended to include but are not limited to these and any other suitable types of memories.

Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present 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 embodiments of the present application, for simplicity , Will not repeat them here.

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

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

An embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application. , Will not repeat them here.

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

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a division of logical functions. In actual implementation, there may be other divisions, for example, multiple units or components may be combined or Can be integrated 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 in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment 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 functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A side communication method, characterized in that it includes:

The first terminal device sends side data through the first communication system and/or the second communication system.
The method according to claim 1, wherein the first terminal device sends side data through the first communication system and the second communication system, including:

The first terminal device is connected to the second protocol layer of the first communication system and the second communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system. The second protocol layer sends side data, wherein the first protocol layer is an upper layer of the second protocol layer.
The method according to claim 1, wherein the first terminal device sends side data through the first communication system and the second communication system, including:

The first terminal device transmits side data at the first protocol layer of the first communication system to the second protocol layer of the first communication system, and sends data to the first protocol layer at the second communication system The second protocol layer of the second communication system sends side data, wherein the first protocol layer is an upper layer of the second protocol layer.
The method according to claim 2, wherein the method further comprises:

The first terminal device is opposed to the second protocol layer of the first communication system and the second communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system The side data sent by the second protocol layer is encrypted and/or compressed.
The method according to claim 3, wherein the method further comprises:

The first terminal device encrypts and/or compresses the side data sent to the second protocol layer of the first communication system at the first protocol layer of the first communication system, and at the second communication The first protocol layer of the system encrypts and/or compresses the side data sent to the second protocol layer of the second communication system.
The method according to any one of claims 2 to 5, wherein the side data sent to the second protocol layer of the first communication system and the second protocol layer to the second communication system are sent The side data includes at least one same upper layer service.
The method according to claim 4, wherein the first terminal device faces the first at the first protocol layer of the first communication system or the first protocol layer of the second communication system After the second protocol layer of the communication system and the side data sent by the second protocol layer of the second communication system are encrypted and/or compressed, the method further includes:

The first terminal device performs a data copy function at the first protocol layer of the first communication system or the first protocol layer of the second communication system.
The method according to claim 5, wherein the side data sent from the first terminal device at the first protocol layer of the first communication system to the second protocol layer of the first communication system Before encrypting and/or compressing, and before encrypting and/or compressing side data sent to the second protocol layer of the second communication system at the first protocol layer of the second communication system, the method further include:

The first terminal device performs a data copy function.
The method according to claim 8, wherein the first terminal device performing the data copying function includes:

The first terminal device performs a data copy function at the first protocol layer of the first communication system or at the first protocol layer of the second communication system.
The method according to any one of claims 2 to 9, wherein the first protocol layer is a packet data convergence protocol PDCP layer, and the second protocol layer is a radio link control RLC layer.
The method of claim 10, further comprising:

The first terminal device encapsulates the side data delivered by the RLC layer of the first communication system at the media access control MAC layer of the first communication system to form a first protocol data unit PDU;

The first terminal device encapsulates side data delivered by the RLC layer of the second communication system at the MAC layer of the second communication system to form a second PDU.
The method according to claim 11, wherein the first PDU and the second PDU have the same target address or the same source address.
The method according to any one of claims 10 to 12, wherein the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system is indicated by at least one of the following information : The target address of the side data, the source address of the side data, the logical channel identifier LCID, the RLC header, and the PDCP header.
The method according to any one of claims 1 to 13, wherein the first communication system is long-term evolution LTE, and the second communication system is a new wireless NR.
A side communication method, characterized in that it includes:

The second terminal device receives the side data through the first communication system and/or the second communication system.
The method according to claim 15, wherein the second terminal device receives side data through the first communication system and the second communication system, including:

The second terminal device receives side data and the side data submitted by the second protocol layer of the first communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system Side data submitted by the second protocol layer of the second communication system, where the first protocol layer is an upper layer of the second protocol layer.
The method according to claim 16, wherein the method further comprises:

The second terminal device at the first protocol layer of the first communication system or the first protocol layer of the second communication system compares the side data received from the second protocol layer of the first communication system with The side data received by the second protocol layer of the second communication system is decompressed and/or decrypted.
The method according to claim 15, wherein the second terminal device receives side data through the first communication system and the second communication system, including:

The second terminal device receives side data submitted by the second protocol layer of the first communication system at the first protocol layer of the first communication system, and receives at the first protocol layer of the second communication system The side data submitted by the second protocol layer of the second communication system, wherein the first protocol layer is an upper layer of the second protocol layer.
The method of claim 18, further comprising:

The second terminal device decompresses and/or decrypts side data received from the second protocol layer of the first communication system at the first protocol layer of the first communication system, and at the second The first protocol layer of the communication system decompresses and/or decrypts the side data received from the second protocol layer of the second communication system.
The method according to any one of claims 16 to 19, wherein the first protocol layer is a packet data convergence protocol PDCP layer, and the second protocol layer is a radio link control RLC layer.
The method of claim 20, further comprising:

The second terminal device determines that the side data received at the MAC layer of the first communication system and the side data received at the MAC layer of the second communication system include at least one same upper layer service.
The method according to claim 21, wherein the second terminal device determines the side data received at the media access control MAC layer of the first communication system and the received side data at the MAC layer of the second communication system The side data includes at least one same upper-layer service, including:

The second terminal device determines, according to the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system, the side data received at the MAC layer of the first communication system and the The side data received by the MAC layer of the second communication system includes at least one same upper layer service.
The method according to claim 22, wherein the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system is indicated by at least one of the following information: the target of the side data Address, source address of side data, logical channel identification LCID, RLC header and PDCP header.
The method according to any one of claims 15 to 23, wherein the first communication system is long-term evolution LTE, and the second communication system is a new wireless NR.
A terminal device, characterized in that the terminal device is a first terminal device, including:

The transceiver unit is used to send side data through the first communication system and/or the second communication system.
The terminal device according to claim 25, wherein the transceiver unit is specifically configured to:

On the transmission side of the first protocol layer of the first communication system or the first protocol layer of the second communication system to the second protocol layer of the first communication system and the second protocol layer of the second communication system Line data, wherein the first protocol layer is an upper layer of the second protocol layer.
The terminal device according to claim 25, wherein the transceiver unit is specifically configured to:

Side data is sent to the second protocol layer of the first communication system at the first protocol layer of the first communication system, and to the second communication system at the first protocol layer of the second communication system The second protocol layer sends side data, wherein the first protocol layer is an upper layer of the second protocol layer.
The terminal device according to claim 26, wherein the terminal device further comprises:

The processing unit is configured to face the second protocol layer of the first communication system and the second communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system The side data sent by the second protocol layer is encrypted and/or compressed.
The terminal device according to claim 27, wherein the processing unit is further configured to:

Encrypt and/or compress side data sent to the second protocol layer of the first communication system at the first protocol layer of the first communication system, and at the first protocol layer of the second communication system Encrypt and/or compress the side data sent to the second protocol layer of the second communication system.
The terminal device according to any one of claims 26 to 29, wherein the side data sent to the second protocol layer of the first communication system and the second protocol layer to the second communication system The side data sent includes at least one same upper layer service.
The terminal device according to claim 28, wherein the processing unit is further configured to:

The first protocol layer of the first communication system or the first protocol layer of the second communication system is sent to the second protocol layer of the first communication system and the second protocol layer of the second communication system. After encrypting and/or compressing the side data of, the data copy function is performed in the first protocol layer of the first communication system or the first protocol layer of the second communication system.
The terminal device according to claim 29, wherein the processing unit is further configured to:

Encrypt and/or compress side data sent to the second protocol layer of the first communication system at the first protocol layer of the first communication system, and at the first protocol layer of the second communication system Before encrypting and/or compressing the side data sent to the second protocol layer of the second communication system, perform a data copy function.
The terminal device according to claim 32, wherein the processing unit is specifically configured to:

The data copy function is performed at the first protocol layer of the first communication system or at the first protocol layer of the second communication system.
The terminal device according to any one of claims 26 to 33, wherein the first protocol layer is a packet data convergence protocol PDCP layer, and the second protocol layer is a radio link control RLC layer.
The terminal device according to claim 34, wherein the terminal device further comprises:

A processing unit, configured to encapsulate side data delivered by the RLC layer of the first communication system in the media access control MAC layer of the first communication system to form a first protocol data unit PDU;

The MAC layer of the second communication system encapsulates the side data delivered by the RLC layer of the second communication system to form a second PDU.
The terminal device according to claim 35, wherein the first PDU and the second PDU have the same target address or the same source address.
The terminal device according to any one of claims 34 to 36, wherein the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system passes at least one of the following information Indication: the target address of the side data, the source address of the side data, the logical channel identifier LCID, the RLC message header, and the PDCP message header.
The terminal device according to any one of claims 25 to 37, wherein the first communication system is long-term evolution LTE, and the second communication system is a new wireless NR.
A terminal device, characterized in that the terminal device is a second terminal device, including:

The transceiver unit is configured to receive side data through the first communication system and/or the second communication system.
The terminal device according to claim 39, wherein the transceiver unit is specifically configured to:

Receiving side data submitted by the second protocol layer of the first communication system and the first of the second communication system at the first protocol layer of the first communication system or the first protocol layer of the second communication system Side data submitted by the second protocol layer, where the first protocol layer is an upper layer of the second protocol layer.
The terminal device according to claim 40, wherein the terminal device further comprises:

The processing unit is configured to compare the side data received from the second protocol layer of the first communication system and the slave at the first protocol layer of the first communication system or the first protocol layer of the second communication system The side data received by the second protocol layer of the second communication system is decompressed and/or decrypted.
The terminal device according to claim 39, wherein the transceiver unit is specifically configured to:

Receiving side data submitted by the second protocol layer of the first communication system at the first protocol layer of the first communication system, and receiving the second communication system at the first protocol layer of the second communication system Side data submitted by the second protocol layer, where the first protocol layer is an upper layer of the second protocol layer.
The terminal device according to claim 42, wherein the terminal device further comprises:

A processing unit for decompressing and/or decrypting side data received from the second protocol layer of the first communication system at the first protocol layer of the first communication system, and at the second communication The first protocol layer of the system decompresses and/or decrypts the side data received from the second protocol layer of the second communication system.
The terminal device according to any one of claims 40 to 43, wherein the first protocol layer is a packet data convergence protocol PDCP layer, and the second protocol layer is a radio link control RLC layer.
The terminal device according to claim 44, wherein the terminal device further comprises:

The processing unit is configured to determine that the side data received at the MAC layer of the first communication system and the side data received at the MAC layer of the second communication system include at least one same upper layer service.
The terminal device according to claim 45, wherein the processing unit is specifically configured to:

According to the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system, determine the side data received at the MAC layer of the first communication system and the MAC at the second communication system The side data received by the layer includes at least one same upper layer service.
The terminal device according to claim 46, wherein the mapping relationship between the logical channel of the first communication system and the logical channel of the second communication system is indicated by at least one of the following information: Target address, source address of side data, logical channel identifier LCID, RLC header and PDCP header.
The terminal device according to any one of claims 39 to 47, wherein the first communication system is long-term evolution LTE, and the second communication system is a new wireless NR.
A terminal device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 1 to One of the methods.
A terminal device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 15 to 24 One of the methods.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 14.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 15 to 24.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 14.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 15 to 24.
A computer program product, characterized in that it includes computer program instructions, which cause the computer to execute the method according to any one of claims 1 to 14.
A computer program product, characterized by comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 15 to 24.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1 to 14.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 15 to 24.