JPWO2020015720A5 - - Google Patents

Description

The present application relates to the field of wireless communication technology, and more particularly to information transmission methods, devices and computer storage media.

The vehicle internet system adopts side link (SL, Sidelink) transmission technology based on Long Term Evolution (LTE, Long Term Evolution) -device-to-device (D2D, Device to Device), and communication data is based in the conventional LTE system. Unlike the method of receiving or transmitting via a station, terminals in a vehicle internet system communicate directly via a PC5 interface (interface with terminals), that is, sidelink SL, for higher spectral efficiency and higher. Has low transmission delay.

In 3GPP (the 3rd Generation Partnership Project) Rel-14, vehicle Internet technology (V2X, Vehicle-to-Everything) is standardized, and the main standardization content is single carrier transmission. As the 3GPP project continues to evolve, the standard release of the 3GPP protocol has also evolved from Rel-14 to Rel-15, and to Rel-16. Therefore, with the Rel-15 release, eV2x extends to multi-carrier scenarios, i.e. one UE can send and receive simultaneously on more than one carrier. In the Rel-16 release, the V2x scenario evolved with different access systems inter-RAT, taking LTE and New Radio (NR, New Radio) systems as an example, and evolved base stations (eNB, evolved) in LTE. Both the 5G base station gNB in the NodeB) or NR system can control the LTE-based PC5 interface LTE-based PC5, and the eNB in LTE or the 5G base station gNB in the NR system are both NR-based PC5 interfaces. The NR-based PC5 can be controlled.

In this case, considering different scenarios of network deployment, such as the presence or absence of network coverage and dual connectivity (DC, Dual-Connectivity) relationships between different nodes provided by different or the same operator, the communication capabilities of the terminal will be It needs to be coordinated in different scenarios of network deployment.

The embodiments of the present application provide information transmission methods, devices and computer storage media .
As a first aspect, an embodiment of the present application provides an information transmission method, wherein the method is applied to a terminal, and the method is described.
It involves sending a first message containing communication capability information about the terminal's PC5 interface to a network device.

As a second aspect, an embodiment of the present application provides an information transmission method, wherein the method is applied to a network device, and the method is described.
Receiving a first message, including communication capability information about the PC5 interface of the terminal, transmitted by the terminal.
The present invention includes transmitting a second message indicating the communication capability of the PC5 interface used by the terminal under the control of the network device to the terminal.

As a third aspect, an embodiment of the present application provides an information transmission method, wherein the method is:
The first network device comprises transmitting a first message indicating the communication capability information of the PC5 interface that can be used by the terminal to the second network device.

As a fourth aspect, an embodiment of the present application provides an information transmission method, wherein the method is:
The second network device comprises receiving a first message transmitted by the first network device indicating the communication capability information of the PC5 interface that can be used by the terminal.

As a fifth aspect, an embodiment of the present application provides a terminal, wherein the terminal includes a first transmitter, the first transmitter network a first message containing communication capability information about the PC5 interface of the terminal. It is configured to send to the device.

As a sixth aspect, an embodiment of the present application provides a network device, wherein the network device includes a second receiver and a second transmitter, wherein the second receiver is transmitted by a terminal. In addition, it is configured to receive a first message including communication capability information regarding the PC5 interface of the terminal.
The second transmission unit is configured to transmit a second message indicating the communication capability of the PC5 interface used by the terminal under the control of the network device to the terminal.

As a seventh aspect, an embodiment of the present application provides a terminal comprising a first network interface, a first memory, and a first processor, wherein the first network interface is the other. The first memory is configured to store a computer program that can be executed on the first processor. , The first processor is configured to perform the steps of the method according to the first aspect when executing the computer program.

As an eighth aspect, an embodiment of the present application provides a network device comprising a second network interface, a second memory, and a second processor, wherein the second network interface comprises. The second memory is configured to send and receive signals when sending and receiving information to and from other external network elements, and the second memory is configured to store a computer program that can be executed on the second processor. The second processor is configured to perform the steps of the method according to the second aspect when executing the computer program.

In a ninth aspect, the embodiment of the present application is a computer storage medium that stores an information transmission program that, when executed by at least one processor, realizes the steps of the information transmission method of the first or second aspect. offer.

An embodiment of the present application provides an information transmission method, a device, and a computer storage medium, the terminal reports communication capability information regarding the PC5 interface to the network device, and then the network device is described by the terminal according to the first message. The communication capacity of the PC5 interface used under the control of the device can be determined, and the communication capacity of the PC5 interface of the terminal can be adjusted under the coverage conditions of different networks.

It is a schematic diagram of the vehicle Internet system architecture in the embodiment of this application. It is a flowchart of the information transmission method in the Example of this application. It is a schematic diagram of the signaling distinction of the 1st message in the embodiment of this application. It is a flowchart of another information transmission method in an embodiment of this application. It is a flowchart of the information transmission method in the Example of this application. It is a flowchart of feedback in an Example of this application. It is a flowchart of another information information transmission method in an embodiment of this application. It is a block diagram of the terminal in the Example of this application. It is a block diagram of the other terminal in the Example of this application. It is a hardware block diagram of the terminal in the Example of this application. It is a block diagram of the network device in the Example of this application. It is a hardware block diagram of the network device in the Example of this application.

Hereinafter, the technical solution in the embodiment of the present application will be clearly and completely described with reference to the drawings in the embodiment of the present application.

Referring to FIG. 1, an exemplary vehicle internet system architecture provided by an embodiment of the present application is shown, which architecture is applicable to the proposed techniques of the embodiment of the present application. This system architecture can be based on various communication systems, such as the LTE-D2D vehicle internet system. Unlike the conventional LTE system in which communication data between terminals is received or transmitted via a network device (for example, a base station), a vehicle internet system adopts a method of direct communication between terminals, whereby the communication data between terminals is adopted. Has higher frequency spectral efficiency and lower transmission delay. In FIG. 1, taking the vehicle-mounted terminal 1 as an example, the transmission resource of the vehicle-mounted terminal 1 is 5G in a base station, for example, an evolved base station (eNB, evolved NodeB) in LTE and / or a new radio (NR, New Radio). Assigned by a base station (gNB), specifically, the base station sends a control message instructing a Grant resource to the vehicle-mounted terminal 1 via a downlink (DL, Down Link) indicated by a dotted line, and then the base station sends a control message. , The vehicle-mounted terminal 1 transmits data to the vehicle-mounted terminal 2 on the SL indicated by the solid line arrow based on the resources allocated from the base station. The data transmission between the eNB and the gNB may also be performed by wire or wireless.

Optionally, the communication system on which the vehicle internet system shown in FIG. 1 is based is a GSM (Global System of Mobile communication) system, a CDMA (Code Division Multipile Access) system, a WCDMA (Wideband System) system, and a WCDMA (Wideband System) system. Ｇｅｎｅｒａｌ Ｐａｃｋｅｔ Ｒａｄｉｏ Ｓｅｒｖｉｃｅ )、ＬＴＥシステム、ＦＤＤ （ Ｆｒｅｑｕｅｎｃｙ Ｄｉｖｉｓｉｏｎ Ｄｕｐｌｅｘ )システム、ＴＤＤ （ Ｔｉｍｅ Ｄｉｖｉｓｉｏｎ Ｄｕｐｌｅｘ )システム、ＵＭＴＳ （ Ｕｎｉｖｅｒｓａｌ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎ Ｓｙｓｔｅｍ )、ＷｉＭＡＸ （ Ｗｏｒｌｄｗｉｄｅ Ｉｎｔｅｒｏｐｅｒａｂｉｌｉｔｙ ｆｏｒ Ｍｉｃｒｏｗａｖｅ Ａｃｃｅｓｓ )通信システム、ＮＲ （ Ｎｅｗ Ｒａｄｉｏ )又はIt may be a future 5G system or the like.

Further, the in-vehicle terminal in the embodiment of the present application may be referred to as a terminal, a terminal device, or the like, and refers to an in-vehicle terminal device, a terminal device in a future 5G network, a terminal device in a future evolved PLMN (Public Land Mobile Network), or the like. However, the embodiment of the present application is not limited.

This application describes various embodiments relating to network devices. The network device in the embodiment of the present application may be a device for communicating with a terminal device, the network device may be a base station (Base Transferr Station, BTS) in GSM or CDMA, and a base station in a WCDMA system. It may be (NodeB, NB), it may be an evolutionary base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, and it may be a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario. Alternatively, the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the embodiments of the present application are not limited. ..

In FIG. 1, since the in-vehicle terminal accesses two different base stations, eNB and gNB, the two base stations can control the PC5 interface of the in-vehicle terminal, and this control is applied to the LTE of the in-vehicle terminal. It is understood that control means not only the PC5 interface based on the PC5 interface but also the PC5 interface based on the NR of the in-vehicle terminal. On the other hand, in different scenarios configured by the network, it is necessary to adjust the communication capability of the PC5 interface of the in-vehicle terminal. The embodiments of the present application will be described and described by the following examples.

It should be noted that all the technical proposals in the embodiment of the present application are not only applied to the in-vehicle Internet system but also applicable to the communication system of other terminals-terminals, and the terminal in the embodiment of the present application is in-vehicle. It may be a terminal, a handy terminal, a PDA (Personal Digital Assistant), a wearable terminal, or the like, and the network in the embodiment of the present application may include an NR network, an LTE network, or the like.

Example 1 Reference to FIG. 2 shows the information transmission method provided by the embodiments of the present application, which method can be applied to terminals in D2D techniques under different access systems inter-RAT, or Although it may be applied to in-vehicle terminals in V2X technology under inter-RAT of different access systems, this method involves the following steps:
In S201, a first message including communication capability information regarding the PC5 interface of the terminal is transmitted to the network device.

According to the technical proposal shown in FIG. 2, after the terminal under the inter-RAT of the different access system reports the communication capability information of the PC5 interface to the network device by the first message, the network device is the PC5 reported by the terminal. Based on the communication capability information of the interface, the communication capability of the terminal's PC5 interface can be adjusted, which makes it possible to adjust the communication capability of the terminal's PC5 interface under the coverage of different types of networks. ..

In the embodiment of the present application, the communication capability information regarding the PC5 interface of the terminal is the communication capability of the PC5 interface under the control of the first network device supported by the terminal and the PC5 under the control of the second network device supported by the terminal. Including the combination with the communication capability of the interface, where the first network device and the second network device are connected in a dual connection architecture.

In one embodiment, the first network device and the second network device are synchronized with each other. In another embodiment, the first network device and the second network device are not synchronized with each other.

In one embodiment, the access type of the first network device and the second network device is LTE. In another embodiment, the access type of the first network device and the second network device is NR. In another embodiment, the access type of the first network device is LTE and the access type of the second network device is NR.

In embodiments of the present application, communication capability information may be used to describe the capabilities of a PC5 interface for data transmission and communication, which capabilities may be represented or indicated by various parameter values. For example, the number of transmit link Tchains that can be provided by the PC5 interface, the number of receive link Rchains that can be provided by the PC5 interface, and the like. In addition to the number of links, other parameter values that can represent or indicate the communication capability of the PC5 interface for data transmission can be regarded as the communication capability information described in the embodiments of the present application.

In the technical proposal according to FIG. 2, the communication capability information regarding the PC5 interface of the terminal included in the first message controls the first instruction information indicating the access type of the PC5 interface and / or the PC5 interface. Includes a second instructional piece indicating the Uu interface access type that can be.

Specifically, the first instruction information for indicating the access type of the PC5 interface indicates the access type of the PC5 interface, for example, the PC5 interface LTE-PC5 which is an LTE access type or the PC5 interface which is an NR access type. Taking a network device that is an NR-PC5 and a base station as an example, for example, an eNB or gNB normally transmits data between a terminal and a base station via a Uu interface, so that Uu is used according to the access type of the base station. The access type of the interface is different, and based on this, the second instruction information indicating the Uu interface access type capable of controlling the PC5 interface indicates the access type of the Uu interface capable of controlling the PC5 interface. For example, the LTE access type Uu interface LTE-Uu or the NR access type Uu interface NR-Uu.

Taking the architecture shown in FIG. 1 as an example, the network device may include at least two access types of network devices, and in this embodiment, they may be referred to as a first network device and a second network device. good. Since the access types of the two network devices are different, the communication capability information regarding the PC5 interface of the terminal that needs to be acquired is also different. With respect to the first message described in S201, the communication capability information regarding the PC5 interface of the terminal included in the first message may be conveyed by different signaling. In this embodiment, the communication capability information regarding the PC5 interface of the terminal included in the first message shown in FIG. 3 is referred to, and taking three types of signaling as an example, the PC5 of the terminal included in the first message is used as an example. In the communication capability information about the interface
The communication capability of the PC5 interface for long-term evolution LTE is carried to the first signaling and is indicated by the shaded block in FIG.
The communication capability of the PC5 interface for the new radio NR is carried to the second signaling and is shown in the dot fill block of FIG.
The communication capability of the PC5 interface for the dual-connected DC of LTE and NR is carried to the third signaling and is shown in the crossbar padding block of FIG.

In the embodiment of the present application, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication combination for the dual connection of LTE and LTE by the PC5 interface is carried to the first signaling.

In the embodiment of the present application, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of LTE and LTE by the PC5 interface is carried to the third signaling. ..

In the embodiment of the present application, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of LTE and LTE by the PC5 interface is carried to the fourth signaling. ..

In the embodiment of the present application, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of the PC5 interface NR and NR is carried to the second signaling. ..

In the embodiment of the present application, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of NR and NR of the PC5 interface is carried to the third signaling. ..

In the embodiment of the present application, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of NR and NR of the PC5 interface is carried to the fifth signaling. ..

It should be noted that some of the above signalings may be realized by three different information elements (IE, Information Element) in the RRC message. Further, other specific implementation methods capable of realizing the above signaling can be adaptively applied to the technical proposal of the embodiment of the present application, and the description thereof will be omitted here.

For some of the above signalings, the first signaling indicates the communication capacity of the PC interface to LTE, so that the first signaling includes communication capacity information about LTE, specifically.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the LTE-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
It includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR.

Since the PC5 interface indicates the communication capability with respect to the new radio NR by the second signaling, the second signaling includes the communication capability information regarding the NR, and specifically,
Communication capability information of the PC5 interface NR-PC5, which is controlled by the NR-Uu interface and whose access type is NR.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
It includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR.

Since the PC5 interface indicates the communication capability for the dual connection DC of LTE and NR by the third signaling, the third signaling includes the communication capability information related to both LTE and NR, and specifically,
LTE-Uu interface communication capability information,
NR-Uu interface communication capability information,
Communication capability information of the PC5 interface NR-PC5, which is controlled by the NR-Uu interface and whose access type is NR.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the LTE-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
A combination of at least two of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR is included.

Regarding the third signaling, since what is included in the third signaling is also included in the first signaling or the second signaling, the third signaling includes the identifier information indicating the communication capability, and the identifier information of the communication capability is the said. The communication capacity information defined in the first signaling and / or the second signaling is shown. For example, the first signaling includes the communication capability information of the PC5 interface LTE-PC5 controlled by the LTE-Uu interface and the access type is LTE, the identifier of this communication capability information is A, and the second signaling is The communication capacity information of the PC5 interface NR-PC5 controlled by the NR-Uu interface and having an access type of NR is included, the identifier of this communication capacity information is B, and the third signaling also includes the NR-Uu interface. When the communication capacity information of the PC5 interface NR-PC5 controlled by the access type is NR and the communication capacity information of the PC5 interface LTE-PC5 controlled by the LTE-Uu interface and the access type is LTE are included, the third The signaling includes identifiers A and B corresponding to this communication capability information. Then, when the opposite side of the terminal receives the third signaling, the respective communication capability information can be determined based on the two identifiers A and B.

For the third signaling, optionally, said third signaling further includes identifier information indicating that the terminal devices support the LTE-Uu and NR-Uu dual connection architectures that are synchronized with each other. Alternatively, the third signaling further includes identifier information indicating that the terminal devices support the LTE-Uu and NR-Uu dual connection architectures that are not synchronized with each other.

In the embodiments of the present application, the communication capability of the PC5 interface for the LTE and LTE dual connection includes identifier information indicating that the terminal devices support the LTE-Uu and LTE-Uu dual connection architecture in which the terminal devices are synchronized with each other. ..

In an embodiment of the present application, the communication capability of the PC5 interface for an LTE and LTE dual connection includes identifier information indicating that the terminal devices support an LTE-Uu and LTE-Uu dual connection architecture that is not synchronized with each other.

In an embodiment of the present application, the communication capability of the PC5 interface for a dual connection of NR and NR includes identifier information indicating that the terminal devices support a dual connection architecture of NR-Uu and NR-Uu synchronized with each other. ..

In an embodiment of the present application, the communication capability of the PC5 interface for a dual connection of NR and NR includes identifier information indicating that the terminal devices support a dual connection architecture of NR-Uu and NR-Uu that are not synchronized with each other.

According to the contents of this embodiment, after classifying the communication capability information regarding the PC5 interface of the terminal included in the first message by the above three types of signaling, the terminal needs to report to the network device, which is specific. In addition, referring to the network architecture shown in FIG. 1, since the terminals are in different access systems inter-RAT, the terminals will access at least two network devices, so that the terminals will access through the first message. , It is necessary to report the communication capability information regarding the PC5 interface to the at least two network devices. Preferably, for the above three types of signaling, sending a first message to the network device is
It comprises transmitting the first signaling, the second signaling and the third signaling to the target network device of at least one of the two network devices.

According to this preferred example, after the terminal has transmitted the first signaling, the second signaling and the third signaling to the target network device, the target network device has its own access type and optionally. The communication capability of the PC5 interface used by the target network device itself can be determined, and the communication capability information included in the above three signalings depends on the communication capability of the PC5 interface used by the target network device itself. Therefore, the communication capability of the PC5 interface used by a network device other than the target network device is determined and transmitted to the other network device. Therefore, other network devices may determine the communication capability of the PC5 interface used by them.

In addition, since at least two network devices correspond to different access types, in this embodiment, two network devices are taken as an example, and the first network device whose access type is LTE and the access type are NR, respectively. 2 network devices. Preferably, for the above three signalings, sending a first message to the network device is
Sending the first signaling to the first network device of access type LTE,
Sending the second signaling to a second network device of access type NR and
The present invention includes transmitting the third signaling to the first network device or the second network device.

According to this preferred example, since the three types of signaling correspond to different access situations, the terminal correspondsly transmits these three types of signaling according to the corresponding access type of the different network devices. Can be done. Each network device can determine the communication capability of the PC5 interface used by itself according to its own request.

In the embodiment of the present application, the transmission of the first message to the network device is realized by the following two methods.
1) The PC5 interface transmits a communication combination for the LTE and LTE dual connection to the first network device and / or the second network device, and the first and second network devices transmit the LTE and LTE dual connection. Configure the architecture.

2) The PC5 interface transmits a communication combination corresponding to a dual connection of NR and NR to the first network device and / or the second network device, and the first and second network devices are NR and NR. Configure a dual connection architecture.

After transmitting the first message to the network device according to the preferred embodiment above, the method further comprises receiving a second message transmitted by the network device, wherein the second message. Indicates the communication capability of the PC5 interface used by the terminal under the control of the network device.

The above preferred embodiment comprises receiving a third message transmitted by the network device prior to transmitting the first message to the network device, wherein the third message is the network device. Shows the communication capability of the PC5 interface controlled by. Further, the communication capability of the PC5 interface controlled by the network device includes a wireless access type (RAT, Radio Access Type) of the PC5 interface controlled by the network device.

Regarding the above third message, the terminal is based on the above third message.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the LTE-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface NR-PC5, which is controlled by the LTE-Uu interface and whose access type is NR.
Determines whether to report at least one of the communication capability information of the PC5 interface NR-PC5 controlled by the NR-Uu interface and having an access type of NR.

Regarding the second message, since the network device knows the communication capability of the terminal with respect to the PC5 interface by receiving the first message, the network device is a terminal under the control of the network device based on the first message. After determining the communication capability of the PC5 interface to be used, it is necessary to give feedback to the terminal for this first message, and this second message is feedback. Since this second message indicates the communication capability of the PC5 interface used by the terminal under the control of the network device, the terminal itself holds the communication capability based on the communication capability of the PC5 interface used under the control of the network device. The communication capacity of the PC5 interface to be used can be determined, and this method further includes the following steps.
The communication capability of the PC5 interface used by the terminal is determined based on the communication capability of the PC5 interface used by the terminal in the network device control shown in the second message.

In addition to determining the communication capability of the PC5 interface used by the terminal based on the second message, the terminal may suspend the communication capability of the PC5 interface used by the terminal in advance, whereby the method may be used. Further includes determining by itself the communication capability of the PC5 interface used by the terminal before transmitting the first message to the network device.

Specifically, the communication capability information of the PC5 interface used by the above terminal is
Communication capability information regarding the PC5 interface that the terminal needs to report to other network devices other than the network device,
And / or includes the communication capability of the PC5 interface used by the terminal other than the network device control.

Regarding the communication capability of the PC5 interface used by the terminal under the network device control, specifically, the communication capability of the PC5 interface not included in the report information is the communication capability of the PC5 interface used by the terminal other than the network device control. Communication capability.

In the communication between the terminal and the network device, if the communication of the PC5 interface under the control of the network device and the communication of the PC5 interface used other than the control of the network device of the terminal conflict with each other, it is under the control of the network device. The communication of the PC5 interface is prioritized, and therefore, the communication priority of the PC5 interface under the network device control is higher than the communication of the PC5 interface used by the terminal other than the network device control.

According to the technical proposal of this embodiment, after the terminal reports the communication capability information regarding the PC5 interface to the network device, the network device may determine the communication capability of the PC5 interface used by itself based on the first message. This allows the communication capabilities of the PC5 interface to be adjusted when the terminals are in different network coverage conditions.

Example 2 Based on the same idea of the invention as in the above embodiment, with reference to FIG. 4, the information transmission method provided by the embodiment of the present application is shown, which is under a different access system inter-RAT. Applied to in-vehicle terminals in D2D or V2X technology, it implements a network device of at least one of the network devices in different access systems inter-RAT, the method comprising the following steps:
In S401, the first message including the communication capability information regarding the PC5 interface of the terminal transmitted by the terminal is received.
In S402, a second message indicating the communication capability of the PC5 interface used by the terminal under the control of the network device is transmitted to the terminal.

According to the technical proposal shown in FIG. 4, after receiving the first message, the terminal is the network device based on the communication capability information regarding the PC5 interface of the terminal included in the first message. The communication capacity of the PC5 interface to be used under control is determined, feedback is given to the terminal by a second message, the terminal can withhold the communication capacity used by the terminal itself, and the communication capacity used by the terminal itself can be determined. The pending process is shown in the above embodiment, and the description thereof is omitted here. The information transmission method according to this embodiment realizes adjustment of the interface capability of the PC 5.

According to the technical proposal shown in FIG. 4, the communication capability information regarding the PC5 interface of the terminal included in the first message is carried via different signaling. Then, in a possible implementation method, the first message includes a first signaling, a second signaling, and a third signaling, and the three signalings are taken as an example, and the first message is included in the first message. Of the communication capability information regarding the PC5 interface of the terminal, the communication capability of the PC5 interface for the long term evolution LTE is transferred to the first signaling, and the communication capability of the PC5 interface for the new radio NR is transferred to the second signaling. The communication capability of the PC5 interface for the dual connection DC of LTE and NR is carried to the third signaling.

It should be noted that the above three signalings may be realized by three different IEs in the RRC message. Further, other specific implementation methods capable of realizing the above three signalings can be adaptively applied to the technical plan of the embodiment of the present application, and the description thereof will be omitted here.

Further, since the number of network devices that realize inter-RAT, which is a different access system, is at least two, in this embodiment, the network device may have an access type of LTE or NR. Then, in the proposed technique of FIG. 4, in another feasible scheme, when the access type of the network device is LTE, the first message includes a first signaling and a third signaling, where the first signaling is included. The communication capability of the PC5 interface for the long-term evolution LTE is carried to the first signaling, and the communication capability of the PC5 interface for the dual connection DC of LTE and NR is carried to the third signaling.
If the access type of the network device is NR, the first message comprises a second signaling and a third signaling, where the PC5 interface carries the communication capability to the new radio NR to the second signaling. Then, the communication capability of the PC5 interface for the dual connection DC of LTE and NR is transferred to the third signaling.

Based on the above two embodiments, in this embodiment, since the network device receives the communication capability information of the PC5 interface regarding the network device other than the network device, the network device needs to be controlled by itself. After determining the communication capability of one PC5 interface, it is necessary to instruct other network devices of the communication capability of the PC5 interface, and based on the above two embodiments, the first message transmitted by the terminal. After receiving, the method further comprises
The first instruction message includes transmitting a first instruction message to a network device other than the network device, wherein the first instruction message can be used by the terminal under the control of the other network device. Shows the communication capability information of the interface. Further, the first instruction message is a PC5 interface that can be used by the terminal under the control of the other network device when the network device and the other network device are connected by a dual connection DC architecture. Shows communication capability information.

For example, assuming that the network device in this embodiment is NE1 and its access type is LTE, if the first message received by NE1 includes a first signaling, a second signaling, and a third signaling, NE1 is In order to receive the communication capability of the PC5 interface that can be used by network devices other than NE1, for example NE2 whose access type is NR, NE1 is connected to NE2 when NE1 and NE2 are connected by a dual connection DC architecture. Can transmit the first instructional information indicating the communication capability information of the PC5 interface that can be used by. Further, when the first message received by NE1 includes the first signaling and the third signaling, the third signaling also includes the communication capability of the PC5 interface that NE2 can use, so that NE1 is , NE2 may similarly transmit to NE2 the first instructional information indicating the communication capability information of the PC5 interface that NE2 can use when NE1 and NE2 are connected in a dual connection DC architecture. When the access type of NE1 is NR and the access type of NE2 is LTE, it may be similarly realized with reference to the above-mentioned example, and is not described in this embodiment.

In the above two embodiments, since the network device according to this embodiment has received the third signaling, when the communication capability of the PC5 interface that can be potentially used by another network device is received, this is performed. The network device according to the embodiment does not receive the third signal, i.e., the other network device receives the communication capability of the potentially usable PC5 interface of the network device in this embodiment. Thereby, in another feasible form, if the access type of the network device is LTE, the first message comprises the first signaling, where the PC5 interface is capable of communicating with long term evolution LTE. Is carried to the first signaling,
If the access type of the network device is NR, the first message comprises a second signaling, where the PC5 interface is carrying communication capability to the new radio NR to the second signaling.

Based on the above implementation, the method further comprises
The second instruction message includes receiving a second instruction message transmitted by a network device other than the network device, wherein the second instruction message is a dual connection DC between the network device and the other network device. When connected by the architecture, the communication capability information of the PC5 interface that the terminal can use under the control of the network device is shown.

When another network device receives the communication capability of the potentially usable PC5 interface of the network device in this embodiment, the second instruction message is transmitted to the network device in the embodiment. In this embodiment, it is possible to acquire the communication capability information of the PC5 interface that can be used when the network device is connected to another network device in a DC manner.

In the feasible embodiment of this embodiment, there is only one network device in the network architecture shown in FIG. 1, and there are no other network devices other than the network device. For example, the access type is NR. If there is only one NE1 or NE2 whose access type is LTE, in this case the first message comprises the first signaling if the access type of the network device is LTE, where the PC5 interface Communication capability for long-term evolution LTE is carried to the first signaling,
Thereby, the method further includes determining the communication capability of the PC5 interface used by the terminal under the control of the network device from the first signaling when the access type of the network device is LTE. Here, the first signaling is the communication capability information of the PC5 interface LTE-PC5 controlled by the LTE-Uu interface and the access type is LTE, and the PC5 interface LTE controlled by the NR-Uu interface and the access type is LTE. -The communication capacity information of the PC5 includes at least one of the communication capacity information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR.

At this time, the communication capability of the PC5 interface used by the terminal under the control of the network device is controlled by the LTE-Uu interface included in the first signaling, and the access type is LTE PC5 interface LTE-PC5. It is shown by the communication ability information of.

If the access type of the network device is NR, the first message comprises a second signaling, where the PC5 interface is carrying communication capability to the new radio NR to the second signaling.

Thereby, the method further comprises determining the communication capability of the PC5 interface used by the terminal under the control of the network device from the second signaling when the access type of the network device is NR. Here, the second signaling is the communication capability information of the PC5 interface NR-PC5 controlled by the NR-Uu interface and the access type is NR, and the PC5 interface LTE controlled by the NR-Uu interface and the access type is LTE. -The communication capability information of the PC5 includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR. At this time, the communication capability of the PC5 interface used by the terminal under the control of the network device is controlled by the NR-Uu interface included in the second signaling, and the access type is NR. Shown by communication capability information.

Example 3 Based on the same idea of the invention as in the above examples, as the information transmission method provided by the embodiments of the present application, this method is applied to D2D or V2X techniques under different access systems inter-RAT. A network device (eg, a first network device) of at least two network devices (eg, a first network device, a second network device) is realized, the method comprising the following steps:
The first network device comprises transmitting a first message indicating the communication capability information of the PC5 interface that can be used by the terminal to the second network device. Further, the first message includes indicating the communication capability information of the PC5 interface that the terminal can use under the control of the second network device.

Those skilled in the art can understand that the description of the first message in this example can be understood with reference to the description of the above-mentioned Examples 1 and 2, and the first in the above-mentioned Examples 1 and 2. It will be appreciated that the description of the message may be adaptively incorporated into this embodiment.

For example, the first message includes a first signaling, a second signaling and a third signaling, where the PC5 interface carries communication capability for LTE to the first signaling and the PC5 interface is NR. The communication capability for the dual connection DC of the PC5 interface is carried to the second signaling, and the communication capability for the dual connection DC of the PC5 interface is carried to the third signaling.

In one embodiment, if the access type of the second network device is LTE, the first message comprises a first signaling and a third signaling, wherein the PC5 interface is for long term evolution LTE. The communication capacity is transferred to the first signaling, and the communication capacity of the PC5 interface for the dual connection DC of LTE and NR is transferred to the third signaling.

In one embodiment, if the access type of the second network device is NR, the first message comprises a second signaling and a third signaling, where the PC5 interface communicates to the new radio NR. The capability is carried to the second signaling, and the communication capability of the PC5 interface for the LTE and NR dual connection DC is carried to the third signaling.

In one embodiment, if the access type of the second network device is LTE, the first message comprises the first signaling, where the PC5 interface has first communication capability for long term evolution LTE. Is carried to the signaling of.

In one embodiment, if the access type of the second network device is NR, the first message comprises a second signaling, where the PC5 interface has a second ability to communicate with the new radio NR. Transported to signaling.

In one embodiment, the method further comprises transmitting the PC5 configuration information under the first network device of the terminal to the second network device by the first network device. For example, the PC5 configuration information includes resource configuration information.

In certain embodiments, the method further comprises transmitting the PC5 communication request information that the first network device reports to the second network device under the first network device of the terminal. For example, the PC5 communication request information includes side link UE information (sidelinkue information).

In this embodiment, the first network device and the second network device are connected by a DC architecture. In one application scenario, i.e., when the terminal switches from the first network device to the second network device, the first network device sends the first message to the second network device.

Example 4 Based on the same idea of the invention as in the above examples, the information transmission method according to the embodiment of the present application is applied to D2D or V2X technology and is applied to at least two network devices under different access systems inter-RAT (for example). , A first network device, a second network device) to implement a network device (eg, a second network device), the method comprising:
The second network device comprises receiving a first message transmitted by the first network device indicating the communication capability information of the PC5 interface that can be used by the terminal. Further, the first message includes indicating the communication capability information of the PC5 interface that the terminal can use under the control of the second network device.

A person skilled in the art can understand the explanation of the first message in this embodiment by referring to the explanations of the above-mentioned Examples 1, 2, and 3, and the above-mentioned Example 1 and the embodiment can be understood. It will be appreciated that the description of the first message in Example 2 and Example 3 can be adaptively incorporated into this example.

In one embodiment, if the access type of the second network device is LTE, the first message comprises the first signaling, where the PC5 interface has the ability to communicate with LTE for the first signaling. Be transported. Further, when the access type of the second network device is LTE, the communication capability of the PC5 interface used by the terminal under the control of the second network device from the first signaling. Here, the first signaling is controlled by the LTE-Uu interface and the access type is the LTE PC5 interface. The communication capability information of the LTE-PC5, the access type is controlled by the NR-Uu interface. It includes at least one of the communication capacity information of the PC5 interface LTE-PC5 which is LTE and the communication capacity information of the PC5 interface NR-PC5 which is controlled by the LTE-Uu interface and whose access type is NR.

In one embodiment, if the access type of the second network device is NR, the first message comprises a second signaling, where the PC5 interface has a second ability to communicate with the new radio NR. Transported to signaling. Further, when the access type of the second network device is NR, the communication capability of the PC5 interface used by the terminal for controlling the second network device is obtained from the second signaling. Here, the second signaling is controlled by the communication capability information of the PC5 interface NR-PC5 whose access type is NR, which is controlled by the NR-Uu interface, and the access type is LTE, which is controlled by the NR-Uu interface. The communication capability information of the PC5 interface LTE-PC5, which is the PC5 interface, and the communication capability information of the PC5 interface NR-PC5, which is controlled by the LTE-Uu interface and whose access type is NR, is included.

In this embodiment, the first network device and the second network device are connected by a DC architecture. In one application scenario, i.e., when the terminal switches from the first network device to the second network device, the first network device sends the first message to the second network device.

Example 5 This example describes the technical proposals of the above two examples by the following specific examples based on the same idea of the invention as the above-mentioned embodiment. In this embodiment, together with the architecture shown in FIG. 1, the vehicle-mounted terminal A is under the inter-RAT system, so that the vehicle-mounted terminal A simultaneously accesses the network device 1 and the network device 2, and in this embodiment, the vehicle-mounted terminal A accesses the network device 1 and the network device 2 at the same time. In order to clearly explain the technical proposal, the access type of the network device 1 is LTE and the access type of the network device 2 is NR. It will be appreciated that the technical proposal of this embodiment can be applied as well if is LTE.

Specific Example 1 With reference to FIG. 5A, a specific implementation flow of the information transmission method according to the embodiment of the present application is shown, and the following steps are included.

In S501, the vehicle-mounted terminal A carries the communication capability information of the PC5 interface regarding itself to the first signaling, the second signaling, and the third signaling, respectively.
In this specific example, the communication capability information related to the PC5 interface of the in-vehicle terminal A is the first instruction information indicating the access type of the PC5 interface and / or the Uu interface access type capable of controlling the PC5 interface. Includes a second instructional information indicating. For the specific realization of the first instruction information and the second instruction information, the corresponding description in the first embodiment may be referred to, and the description thereof will be omitted here.

The first signaling, the second signaling, and the third signaling may be report information transmitted by the terminal to the network device. Specifically, in the communication capability information regarding the PC5 interface of the in-vehicle terminal A, the above-mentioned The communication capability of the PC5 interface for the long term evolution LTE is transferred to the first signaling, which is shown by a shaded block in FIG. 3, and the communication capability of the PC5 interface for the new radio NR is transferred to the second signaling, as shown in FIG. The communication capability of the PC5 interface for the dual connection DC of LTE and NR shown in the medium dot filled block is carried to the third signaling and is shown by the crossbar padding box of FIG. For the contents included in the above three signalings, the description of the corresponding portion of the first embodiment will be referred to, and the description thereof will be omitted here.

In S502, the vehicle-mounted terminal A transmits the first signaling, the second signaling, and the third signaling to the network device 1.
In S503, the network device 1 determines the communication capability of the PC5 interface used by the vehicle-mounted terminal A under the control of the network device 1 based on its own access type and the first signaling, the second signaling, and the third signaling. death,
In S504, the network device 1 determines the communication capability of the PC5 interface used by the vehicle-mounted terminal A under the control of the network device 2 based on the communication capability of the PC5 interface used by the vehicle-mounted terminal A under the control of the network device 1.
In S505, the network device 1 transmits the communication capability of the PC5 interface used by the vehicle-mounted terminal A under the control of the network device 2 to the network device 2.
In S504 and S505, even if the network device 1 directly determines the communication capability of the interface of the PC 5 used by the in-vehicle terminal A under the control of the network device 2 and transmits it to the network device 2. Often, and as another embodiment, the network device 1 determines and transmits to the network device 2 the communication capability of the PC5 interface that the in-vehicle terminal A can potentially use under the control of the network device 2, and transmits the network device. After receiving the communication capability of the PC5 interface that may be potentially usable, the second determines the access type of the network device 2 itself, and the PC5 actually used by the in-vehicle terminal A under the control of the network device 2. The communication capability of the interface may be determined.

As can be seen from the steps of S504 and S505, in this embodiment, the relationship between the network device 1 and the network device 2 is considered to be a master-slave relationship, that is, the network device 1 is a master network device and the network device 2 is a slave network device. This is possible, and after both the network device 1 and the network device 2 have acquired the communication capability of the interface of the PC5 used by the in-vehicle terminal A under its own control, feedback to the in-vehicle terminal A is required. , FIG. 5 (B), and this embodiment is continuously executed.

S506: The network device feeds back the communication capability of the PC5 interface used by the vehicle-mounted terminal A under the control of the network device to the vehicle-mounted terminal A.
S507: The in-vehicle terminal A reserves the communication capability of the PC5 interface to be used based on the feedback.

In the procedure shown in FIG. 5B, the network device may be the above-mentioned network device 1 or the above-mentioned network device 2, and each of the two network devices communicates with the PC5 interface used by the in-vehicle terminal A under its own control. After feeding back the capability to the vehicle-mounted terminal A, the vehicle-mounted terminal A can determine the communication capability of the PC5 interface that it holds and uses based on the feedback.

By the above procedure, each device of the architecture shown in FIG. 1 can grasp the communication capacity of the interface of the PC5 used by itself and adjust the communication capacity of the interface of the PC5 according to the coverage of various networks. ..

In addition to determining the communication capability of the PC5 interface to be reserved and used based on the feedback, the in-vehicle terminal A may suspend the communication capability of the PC5 interface used by itself in advance. Regarding the communication capability of the PC5 interface held and used by the in-vehicle terminal A, the detailed description thereof will be omitted here with reference to the corresponding description of the contents in the first embodiment.

Specific Example 2 With reference to FIG. 6, a specific implementation flow of the information transmission method according to the embodiment of the present application is shown, and the flow includes the following steps.
In S601, the vehicle-mounted terminal A carries the communication capability information regarding its own PC5 interface to the first signaling, the second signaling, and the third signaling, respectively.
For a detailed description of S601, the detailed description of the above-mentioned specific example relating to S501 will be referred to, and the description thereof will be omitted here. In S602, the vehicle-mounted terminal A transmits the first signaling and the third signaling to the network device 1. death,
In S603, the vehicle-mounted terminal A transmits the second signaling to the network device 2.
The in-vehicle terminal transmits three types of signaling to network devices of the same access type according to the corresponding access type, and each network device uses itself based on the received signal. The communication capability of the existing PC5 interface can be acquired, and the communication capability of the PC5 interface can be adjusted with coverage of different network types.

In S604, the network device 1 transmits an instruction message to the network device 2 based on the third signaling.
Note that this instruction message is used to indicate the communication capability of the PC5 interface that can be used by the in-vehicle terminal A under the control of the network device 2 when the network device 1 and the network device 2 are DC-connected. Further, in a certain embodiment, the instruction message may be the communication capability of the PC5 interface used by the vehicle-mounted terminal A directly determined by the network device 1 and transmitted to the network device 2 under the control of the network device 2. In another embodiment, the vehicle-mounted terminal A determined by the network device 1 and transmitted to the network device 2 may have the communication capability of the PC5 interface that can be used under the control of the network device 2, and is used by the network device 2. After receiving the communication capability of the PC5 interface that may be possible, the in-vehicle terminal A determines the communication capability of the PC5 interface actually used under the control of the network device 2 according to the access type of the network device 2 itself. You may.

In S602 to S604, when the vehicle-mounted terminal A transmits the first signaling to the network device 1 and transmits the second signaling and the third signaling to the network device 2, the network device 2 transmits the received third signaling. Based on this, an instruction message is transmitted to the network device 1, and this instruction message is used by the in-vehicle terminal A under the control of the network device 1 when the network device 1 and the network device 2 are connected in a DC manner. The communication capacity of the possible PC5 interface is shown.

According to this specific example, since each network device receives the signaling transmitted by the vehicle-mounted terminal A, each network device is used by the vehicle-mounted terminal A under its own control based on the signaling received by itself. The in-vehicle terminal A obtains the communication capability of the PC5 interface, and each network device feeds back the communication capability of the PC5 interface used by the in-vehicle terminal A under its own control to the in-vehicle terminal A. From the communication capability of the PC5 interface used by each of the network devices, it can be determined that the in-vehicle terminal A suspends and uses the communication capability of the PC5 interface. For a specific description of this process, S506 and S507 described in the above-mentioned Specific Example 1 may be referred to, and the description thereof will be omitted here.

Example 6 Based on the same idea of the invention as in the above-described embodiment, FIG. 7 is referred to, a configuration diagram of the terminal 70 in the embodiment of the present application is shown, the first transmission unit 701 is provided, and the first transmission unit 701 is provided. Is configured to send a first message containing communication capability information about the terminal's PC5 interface to the network device.

Illustratively, the communication capability information regarding the PC5 interface of the terminal is the communication capability of the PC5 interface under the control of the first network device supported by the terminal and the PC5 interface under the control of the second network device supported by the terminal. Including a combination with communication capability, where the first network device and the second network device are connected in a dual connection architecture.

Illustratively, the first network device and the second network device are synchronized with each other.

Illustratively, the first network device and the second network device are not synchronized with each other.

Illustratively, the access type of the first network device and the second network device is LTE.

Illustratively, the access type of the first network device and the second network device is NR.

Illustratively, the access type of the first network device is LTE and the access type of the second network device is NR.

Illustratively, the communication capability information regarding the PC5 interface of the terminal is
It includes a first instructional information indicating the access type of the PC5 interface and / or a second instructional information indicating a Uu interface access type capable of controlling the PC5 interface.

Illustratively, in the communication capability information regarding the PC5 interface of the terminal included in the first message.
The communication capability of the PC5 interface for long-term evolution LTE is transferred to the first signaling.
The communication capability of the PC5 interface for the new radio NR is transferred to the second signaling, and the communication capability is transferred to the second signaling.
The communication capability of the PC5 interface for the dual-connected DC of LTE and NR is carried to the third signaling.

Illustratively, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication combination for the dual connection of LTE and LTE by the PC5 interface is carried to the first signaling.

Illustratively, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of LTE and LTE by the PC5 interface is carried to the third signaling.

Illustratively, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection of LTE and LTE by the PC5 interface is carried to the fourth signaling.

Illustratively, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection in which the PC5 interface is NR and NR is carried to the second signaling.

Illustratively, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection in which the PC5 interface is NR and NR is carried to the third signaling.

Illustratively, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability combination for the dual connection in which the PC5 interface is NR and NR is carried to the fifth signaling.

In the above example, the first signaling is
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the LTE-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
It includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR.

In the above example, the second signaling is
Communication capability information of the PC5 interface NR-PC5, which is controlled by the NR-Uu interface and whose access type is NR.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
It includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR.

In the above example, the third signaling is
LTE-Uu interface communication capability information,
NR-Uu interface communication capability information,
Communication capability information of the PC5 interface NR-PC5, which is controlled by the NR-Uu interface and whose access type is NR.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the LTE-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
A combination of at least two of the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR is included.

In the above example, the third signaling further includes identifier information indicating communication capability, and the identifier information of the communication capability indicates communication capability information defined in the first signaling and / or second signaling.

In the above embodiment, the third signaling further includes identifier information indicating that the terminal devices support the LTE-Uu and NR-Uu dual connection architectures that are synchronized with each other.

In the above embodiment, the third signaling further includes identifier information indicating that the terminal devices support the LTE-Uu and NR-Uu dual connection architectures that are not synchronized with each other.

In the above embodiment, the communication capability of the PC5 interface for the LTE and LTE dual connection includes identifier information indicating that the terminal devices support the LTE-Uu and LTE-Uu dual connection architectures that are synchronized with each other.

In the above embodiment, the communication capability of the PC5 interface for the LTE and LTE dual connection includes identifier information indicating that the terminal devices support the LTE-Uu and LTE-Uu dual connection architectures that are not synchronized with each other.

In the above embodiment, the communication capability of the PC5 interface for a dual connection of NR and NR includes identifier information indicating that the terminal devices support a dual connection architecture of NR-Uu and NR-Uu synchronized with each other.

In the above embodiment, the communication capability of the PC5 interface for a dual connection of NR and NR includes identifier information indicating that the terminal devices support a dual connection architecture of NR-Uu and NR-Uu that are not synchronized with each other.

In the above embodiment, the first transmission unit 701 transmits the first signaling, the second signaling, and the third signaling to the target network device of at least two network devices. It is composed.

In the above embodiment, the first transmission unit 701
Sending the first signaling to the first network device of access type LTE,
The second signaling is transmitted to the second network device having an access type of NR.
It is configured to transmit the third signaling to the first network device or the second network device.

In the above embodiment, the first transmission unit 701 is configured such that the PC5 interface transmits a communication combination for the LTE and LTE dual connection to the first network device and / or the second network device. The first and second network devices constitute an LTE and LTE dual connection architecture.

In the above embodiment, the first transmitter 701 is configured such that the PC5 interface transmits a communication combination corresponding to a dual connection of NR and NR to the first network device and / or the second network device. The first and second network devices constitute a dual connection architecture of NR and NR.

In the above embodiment, with reference to FIG. 8, the terminal 70 further includes a first receiving unit 702, the first receiving unit 702 to receive a second message transmitted by the network device. Here, the second message indicates the communication capability of the PC5 interface used by the terminal under the control of the network device.

In the above embodiment, with reference to FIG. 8, the terminal 70 further includes a first receiving unit 702, the first receiving unit 702 to receive a third message transmitted by the network device. Here, the third message indicates the communication capability of the PC5 interface controlled by the network device. Further, the communication capability of the PC5 interface controlled by the network device includes the RAT of the PC5 interface controlled by the network device.

In the above embodiment, the terminal 70 further includes a determination unit (not shown), and the determination unit is based on the third message.
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the LTE-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface LTE-PC5, which is controlled by the NR-Uu interface and whose access type is LTE,
Communication capability information of the PC5 interface NR-PC5, which is controlled by the LTE-Uu interface and whose access type is NR.
It is configured to determine whether to report at least one of the communication capability information of the PC5 interface NR-PC5, which is controlled by the NR-Uu interface and whose access type is NR.

In the above embodiment, with reference to FIG. 8, the terminal 70 further includes a first decision unit 703, wherein the first decision unit 703 indicates that the terminal is under the control of the network device, as shown in the second message. It is configured to determine the communication capability of the PC5 interface used by the terminal based on the communication capability of the PC5 interface used in.

In the above embodiment, referring to FIG. 8, the terminal 70 further includes a second determination unit 704, in which the first transmission unit 701 first sends a message to the network device. Is configured to determine by itself the communication capability of the PC5 interface used by the terminal before transmitting.

In the above form, the communication capability information of the PC5 interface used by the terminal is
Communication capability information regarding the PC5 interface that the terminal needs to report to other network devices other than the network device,
And / or includes the communication capability of the PC5 interface used by the terminal other than the network device control.

In the above embodiment, the communication capability related to the PC5 interface not included in the report information is the communication capability of the PC5 interface used by the terminal under the control of the network device.

In the above embodiment, the communication priority of the PC5 interface under the network device control is higher than the communication of the PC5 interface used by the terminal other than the network device control.

In this embodiment, the "part" may be a part of a circuit, a part of a processor, a part of a program, a part of software, etc., and may be a unit or a module. It may be non-moduled.

Further, each component in this embodiment may be integrated into one processing unit, each unit may be physically present individually, or two or more units may be integrated into one unit. You may. The integrated unit may be realized in the form of hardware or in the form of software functional blocks.

If the integrated unit is realized in the form of a software functional module and is not sold or used as a stand-alone product, it may be stored on a computer-readable storage medium, and based on such understanding, the proposed technical ideas of this embodiment , Essentially, or parts that contribute to the prior art, or all or part thereof, may be embodied in the form of a computer software product stored on a storage medium, the instruction of which is one computer device. Have the processor (which may be a personal computer, server, or network device, etc.) or processor (processor) perform all or part of the steps of the method described in this embodiment. Further, the storage medium includes a U-disk, a portable hard disk, a ROM (Read Only Memory), a RAM (Random Access Memory), a magnetic disk, an optical disk, and the like that can store various program codes.

Accordingly, this embodiment provides a computer storage medium that stores an information transmission program that, when executed by at least one processor, implements the steps of the information transmission method of the above embodiment.

Based on the terminal 70 and the computer storage medium described above, with reference to FIG. 9, a specific hardware configuration of the terminal 70 according to the embodiment of the present application is shown, and the first network interface 901 and the first memory 902 are shown. , And a first processor 903, each component being coupled to each other by a bus system 904. It will be appreciated that the bus system 904 is used to enable connection communication between these components. The bus system 904 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, the various buses are referred to in FIG. 9 as the bus system 904 for clarity. Here, the first network interface 901 is used for receiving and transmitting signals in the process of transmitting and receiving information to and from other external network elements, and the first memory 902 is the first processor 903. Memorize the computer programs that can be executed on
When the first processor 903 executes the computer program, the first processor 903
A first message containing communication capability information about the terminal's PC5 interface is sent to the network device.

It is understood that the first memory 902 in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both a volatile memory and a non-volatile memory. Here, the non-volatile memory may be a Read-Only Memory, a Programmable ROM, an Erasable PROM, an Electrically EPROM, or a flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM) used as an external cache. By way of example, but not by limitation, static random access memory (Static RAM, SDRAM), 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 DRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced DRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SL DRAM), and direct memory bus random access memory (Direct Rambus RAM). , DRRAM), and many other forms of RAM are available. The first memory 902 of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable type of memory.

The first processor 903 may be an integrated circuit chip capable of processing signals. In implementation, the steps of the method described above may be performed by instructions in the form of hardware integrated logic circuits or software within the first processor 903. The first processor 903 described above may be a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be embodied and implemented. The general-purpose processor may be a microprocessor, an arbitrary conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly as performed by a hardware decoding processor, or may be performed by a combination of hardware and software modules within the decoding processor. It may be embodied as such. The software module may be located in a storage medium well known in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the first memory 902, and the first processor 903 reads information from the first memory 902 and performs the steps of the above method with its hardware.

It is understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementations, the processing unit is one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSP Devices, DSPDs), programmable logic devices (PLDs), It may be implemented in an FPGA, a general purpose processor, a controller, a microcontroller, a microprocessor, other electronic units for performing the functions described herein, or a combination thereof.

In the case of software implementation, the techniques described herein may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described herein. The software code is stored in memory and can be executed by the processor. The memory may be implemented inside the processor or outside the processor.

Specifically, when the first processor 903 of the terminal 90 is further configured to execute a computer program, the method step described in the first embodiment described above is performed, and the description thereof is omitted here. Will be done.

Example 7 Based on the same idea of the invention as in the above-described embodiment, the configuration of the network device 100 in the embodiment of the present application is shown with reference to FIG. 10, and the second receiving unit 1001 and the second transmitting unit 1002 are provided. Here, the second receiving unit 1001 is configured to receive the first message including the communication capability information regarding the PC5 interface of the terminal transmitted by the terminal.
The second transmission unit 1002 is configured to transmit a second message indicating the communication capability of the PC5 interface used by the terminal under the control of the network device to the terminal.

Illustratively, the first message comprises a first signaling, a second signaling and a third signaling, wherein the PC5 interface carries communication capability for long term evolution LTE to the first signaling. The communication capability of the PC5 interface for the new radio NR is transferred to the second signaling, and the communication capability of the PC5 interface for the dual connection DC of LTE and NR is transferred to the third signaling.

Illustratively, when the access type of the network device is LTE, the first message includes a first signaling and a third signaling, wherein the PC5 interface has the ability to communicate with long term evolution LTE. The communication capability of the PC5 interface for the dual connection DC of LTE and NR is carried to the first signaling, and is carried to the third signaling.
Illustratively, when the access type of the network device is NR, the first message comprises a second signaling and a third signaling, wherein the PC5 interface has a second communication capability with respect to the new radio NR. The communication capability of the PC5 interface for the dual connection DC of LTE and NR is carried to the third signaling.

In the above three examples, the second transmitting unit 1002 is further connected to a network device other than the network device after the second receiving unit 1001 receives the first message from the terminal. 1 is configured to transmit an instruction message, wherein the first instruction message is such that when the network device and the other network device are connected in a dual connection DC architecture, the terminal is the other. The communication capacity information of the PC5 interface that can be used under the control of the network device is shown.

Illustratively, when the access type of the network device is LTE, the first message comprises the first signaling, where the PC5 interface carries the communication capability for the long term evolution LTE to the first signaling. Being done
Illustratively, when the access type of the network device is NR, the first message comprises a second signaling, where the PC5 interface carries the communication capability to the new radio NR to the second signaling. To.

In the above two examples, the second receiving unit 1001 further
It is configured to receive a second instruction message transmitted by a network device other than the network device, wherein the second instruction message is a dual connection between the network device and the other network device. When connected by the DC architecture, the communication capability information of the PC5 interface that the terminal can use under the control of the network device is shown.

Based on the above two examples, if there is no other network device other than the network device, the determination unit is optionally included, and the determination unit includes the determination unit when the access type of the network device is LTE. From the signaling of 1, the terminal is configured to determine the communication capability of the PC5 interface used under the control of the network device, where the first signaling is controlled by the LTE-Uu interface and the access type is LTE. PC5 interface LTE-PC5 communication capability information, PC5 interface controlled by NR-Uu interface and access type LTE-PC5 communication capability information, PC5 interface controlled by LTE-Uu interface and access type NR Includes at least one of the communication capability information of NR-PC5.

Alternatively, the determination unit can be selected, and when the access type of the network device is NR, the determination unit may determine the communication capability of the PC5 interface used by the terminal under the control of the network device from the second signaling. The second signaling is configured here, the communication capability information of the PC5 interface NR-PC5 controlled by the NR-Uu interface and the access type is NR, and the PC5 controlled by the NR-Uu interface and the access type is LTE. The interface includes at least one of the communication capability information of the LTE-PC5 and the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and having an access type of NR.

Example 8 Based on the same idea of the invention as in the above-described embodiment, the configuration of the network device in the embodiment of the present application is shown, and this network device is referred to as a first network device and includes a transmitter.
The transmitting unit is configured to transmit the first message to the second network device, wherein the first message indicates the communication capability information of the PC5 interface that can be used by the terminal, and further. The first message includes indicating the communication capability information of the PC5 interface that the terminal can use under the control of the second network device.

Illustratively, the first message comprises a first signaling, a second signaling and a third signaling, wherein the PC5 interface carries communication capability for long term evolution LTE to the first signaling. The communication capability of the PC5 interface for the new radio NR is transferred to the second signaling, and the communication capability of the PC5 interface for the dual connection DC of LTE and NR is transferred to the third signaling.

Illustratively, when the access type of the second network device is LTE, the first message comprises a first signaling and a third signaling, where the PC5 interface communicates to the long term evolution LTE. The capability is carried to the first signaling, and the communication capability of the PC5 interface for the LTE and NR dual connection DC is carried to the third signaling.

Illustratively, when the access type of the second network device is NR, the first message comprises a second signaling and a third signaling, wherein the PC5 interface has the ability to communicate with the new radio NR. Is carried to the second signaling, and the communication capability of the PC5 interface for the dual connection DC of LTE and NR is carried to the third signaling.

Illustratively, when the access type of the second network device is LTE, the first message comprises a first signaling, where the PC5 interface has first communication capability for long term evolution LTE. Transported to signaling.

Illustratively, if the access type of the second network device is NR, the first message comprises a second signaling, where the PC5 interface has a second signaling capability to communicate with the new radio NR. Will be transported to.

Illustratively, the transmitter is configured to further transmit to the second network device the PC5 configuration information of the first network device of the terminal. For example, the PC5 configuration information includes resource configuration information.

Illustratively, the transmitter is configured to further transmit to the second network device the PC5 communication request information reported by the first network device of the terminal. For example, the PC5 communication request information includes side link UE information (sidelinkue information).

Illustratively, the first network device and the second network device are connected by a DC architecture.

Illustratively, when the terminal switches from the first network device to the second network device, the transmitter transmits the first message to the second network device.

Example 9 Based on the same idea of the invention as in the above-described embodiment, the configuration of the network device in the embodiment of the present application is shown, and this network device is referred to as a second network device and includes a receiving unit.
The receiving unit is configured to receive the first message from the first network device, where the first message indicates the communication capability information of the PC5 interface that can be used by the terminal. Further, the first message indicates the communication capability information of the PC5 interface that the terminal can use under the control of the second network device.

Illustratively, when the access type of the second network device is LTE, the first message comprises a first signaling, where the PC5 interface has first communication capability for long term evolution LTE. Transported to signaling.

Illustratively, if the access type of the second network device is NR, the first message comprises a second signaling, where the PC5 interface has a second signaling capability to communicate with the new radio NR. Will be transported to.

Illustratively, the network device further comprises a decision unit, wherein the terminal is the second from the first signaling when the access type of the second network device is LTE. It is configured to determine the communication capability of the PC5 interface used under network device control, where the first signaling is the communication of the PC5 interface LTE-PC5 controlled by the LTE-Uu interface and the access type is LTE. Of the capability information, the communication capability information of the PC5 interface LTE-PC5 controlled by the NR-Uu interface and the access type is LTE, and the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and the access type is NR. Includes at least one of.

Illustratively, the network device further comprises a decision unit, which, when the access type of the second network device is NR, from the second signaling, the terminal is the second network. It is configured to determine the communication capability of the PC5 interface used under device control, where the second signaling is the communication capability of the PC5 interface NR-PC5, which is controlled by the NR-Uu interface and has an access type of NR. Of the information, the communication capability information of the PC5 interface LTE-PC5 controlled by the NR-Uu interface and the access type is LTE, and the communication capability information of the PC5 interface NR-PC5 controlled by the LTE-Uu interface and the access type is NR. Includes at least one.

Illustratively, the first network device and the second network device are connected by a dual connection DC architecture.

Illustratively, when the terminal switches from the first network device to the second network device, the receiving unit receives the first message from the first network device.

The embodiment also provides a computer storage medium that stores an information transmission program that, when executed by at least one processor, implements the steps of the method according to embodiment 2. For a detailed description of the computer storage medium, the description of the third embodiment will be referred to, and the description thereof will be omitted here.

With reference to FIG. 11, based on the network device 100 and the computer storage medium described above, the specific hardware configuration of the network device 100 according to the embodiment of the present application includes the second network interface 1101, the second memory 1102, and the second memory. Two processors 1103 are included, and each component is coupled to each other by the bus system 1104. It is understood that the bus system 1104 is used to enable connection communication between these components. The bus system 1104 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity, the various buses are referred to as the bus system 1104 in FIG.

Here, the second network interface 1101 receives and transmits signals in the process of transmitting and receiving information to and from other external network elements.
The second memory 1102 stores a computer program that can operate on the second processor 1103, and the second processor executes the computer program.
Upon receiving the first message including the communication capability information regarding the PC5 interface of the terminal, which is transmitted by the terminal,
In response to the first message, a second message indicating the communication capability of the PC5 interface used by the terminal under the control of the network device is transmitted to the terminal.

Since the components in the specific hardware configuration of the network device 100 in this embodiment are similar to those in the third embodiment, detailed description thereof will be omitted here.

Specifically, the second processor 1103 of the network device 100 is further configured to perform the method step described in the second embodiment described above when executing a computer program, and the description thereof will be described here. Omit.

The technical proposals described in the examples of the present application can be arbitrarily combined as long as there is no contradiction .

Claims (15)

It is an information transmission method applied to terminals.
An information transmission method comprising transmitting a first message including communication capability information regarding a PC5 interface of a terminal to a network device. The communication capability information regarding the PC5 interface of the terminal is the communication capability of the PC5 interface under the control of the first network device supported by the terminal and the communication capability of the PC5 interface under the control of the second network device supported by the terminal. Including combinations, the first network device and the second network device are connected in a dual connection architecture.
The first network device and the second network device are synchronized with each other or not synchronized with each other.
The information transmission method according to claim 1 , wherein the information transmission method is characterized by the above. The communication capability information regarding the PC5 interface of the terminal is the communication capability of the PC5 interface under the control of the first network device supported by the terminal and the communication capability of the PC5 interface under the control of the second network device supported by the terminal. Including combinations, the first network device and the second network device are connected in a dual connection architecture.
The access type of the first network device and the second network device is LTE , or the access type of the first network device and the second network device is NR, or the above. The information transmission method according to claim 1 , wherein the access type of the first network device is LTE, and the access type of the second network device is NR . The communication capability information regarding the PC5 interface of the terminal includes the first instruction information indicating the access type of the PC5 interface and / or the second instruction information indicating the Uu interface access type capable of controlling the PC5 interface. The information transmission method according to claim 1, wherein the information transmission method includes. Of the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication capability of the PC5 interface for the long term evolution LTE is carried to the first signaling.
The communication capability of the PC5 interface with respect to the new radio NR is carried to the second signaling.
The communication capability of the PC5 interface for the dual connection DC of LTE and NR is transferred to the third signaling.
The information transmission method according to claim 1, wherein the information transmission method is characterized by the above. The claim is characterized in that, among the communication capability information regarding the PC5 interface of the terminal included in the first message, the communication combination for the dual connection of LTE and LTE by the PC5 interface is carried to the first signaling. The information transmission method according to 1. Among the communication capacity information regarding the PC5 interface of the terminal included in the first message, the communication capacity combination for the dual connection of LTE and LTE by the PC5 interface is carried to the third signaling. Item 1. The information transmission method according to Item 1. Among the communication capacity information regarding the PC5 interface of the terminal included in the first message, the communication capacity combination for the dual connection of LTE and LTE by the PC5 interface is carried to the fourth signaling. Item 1. The information transmission method according to Item 1. Among the communication capability information regarding the PC5 interface of the terminal included in the first message, the claim is characterized in that the communication capability combination for the dual connection of NR and NR of the PC5 interface is carried to the second signaling. Item 1. The information transmission method according to Item 1. Among the communication capability information regarding the PC5 interface of the terminal included in the first message, the claim is characterized in that the communication capability combination for the dual connection of NR and NR of the PC5 interface is carried to the third signaling. Item 1. The information transmission method according to Item 1. Among the communication capability information regarding the PC5 interface of the terminal included in the first message, the claim is characterized in that the communication capability combination for the dual connection of NR and NR of the PC5 interface is carried to the fifth signaling. Item 1. The information transmission method according to Item 1. The first signaling is
PC5 interface controlled by LTE-Uu interface and access type is LTE Communication capability information of LTE-PC5, communication capability information of PC5 interface LTE-PC5 controlled by NR-Uu interface and access type is LTE, LTE-Uu interface The information transmission method according to claim 5 or 6 , wherein the information transmission method includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by NR and having an access type of NR. The second signaling is
PC5 interface controlled by NR-Uu interface and access type is NR Communication capability information of NR-PC5, communication capability information of PC5 interface LTE-PC5 controlled by NR-Uu interface and access type is LTE, LTE-Uu interface The information transmission method according to claim 5 or 9 , wherein the information transmission method includes at least one of the communication capability information of the PC5 interface NR-PC5 controlled by NR and having an access type of NR. A terminal having a first network interface, a first memory, and a first processor.
The first network interface is configured to send and receive signals when sending and receiving information to and from other external network elements, and the first memory is a computer that can be executed on the first processor. The first processor is configured to store the program, and the first processor is configured to perform the step of the method according to any one of claims 1 to 13 when executing the computer program. A terminal featuring. A computer storage medium comprising storing an information transmission program, which, when executed by at least one processor, implements the steps of the information transmission method according to any one of claims 1-13 .