CN111818618B

CN111818618B - Communication network determination method, device and system

Info

Publication number: CN111818618B
Application number: CN201910295590.8A
Authority: CN
Inventors: 徐蓓; 郭瑾; 张朝辉
Original assignee: Huawei Cloud Computing Technologies Co Ltd
Current assignee: Huawei Cloud Computing Technologies Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2022-03-08
Anticipated expiration: 2039-04-12
Also published as: WO2020207437A1; CN111818618A

Abstract

The embodiment of the application provides a method, a device and a system for determining a communication network, relates to the technical field of communication, and is used for improving the communication efficiency of message transmission between a terminal and an edge platform. The scheme comprises the following steps: the communication device receives a service message, wherein the service message is a service message for the terminal to communicate with other equipment through the communication device, and the service message comprises a service identifier and a first indication for indicating a target network for the communication device to plan transmission of the service message. The communication device determines various networks to be selected according to the identification of the terminal and the service identification; the network to be selected belongs to a network corresponding to a network type supported by the terminal and also belongs to a network corresponding to a network type configured for the service by the communication device; the communication device determines a target network meeting the service requirement corresponding to the service according to the network states of various networks to be selected, and the target network is used for transmitting the service message.

Description

Communication network determination method, device and system

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method, a device and a system for determining a communication network.

Background

The terminal (e.g., vehicle) may support the PC5 interface and the Uu interface. The Uu interface is used for communication between the terminal and a base station accessed by the terminal, and the PC5 interface is used for interaction between the terminals. For example, terminal a may broadcast and receive road events to and from terminal B using the PC5 interface. And the terminal A reports the vehicle data to the accessed base station by using the Uu interface. When the terminal supports both the PC5 interface and the Uu interface, the edge platform issues a message to the terminal, or the terminal reports the vehicle data to the edge platform, if only one communication network is limited to be used. For example, when the Uu interface between the terminal and the base station and the edge platform are used to transmit messages, when the processing capability of the Uu interface is reduced or the network is congested, the message delay is very high, which may result in a failure in sending the message.

Disclosure of Invention

The embodiment of the application provides a method, a device and a system for determining a communication network, which are used for improving the communication efficiency of message transmission between a terminal and an edge platform.

In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

in a first aspect, an embodiment of the present application provides a method for determining a communication network, including: a communication device receives a service message, wherein the service message is a service message for a terminal to communicate with other equipment through the communication device, the service message comprises a service identifier and a first indication, and the first indication is used for indicating a target network for planning transmission of the service message by the communication device; the communication device determines various networks to be selected according to the identification of the terminal and the service identification; the network to be selected belongs to a network corresponding to a network type supported by the terminal and a network corresponding to a network type configured for the service by the communication device. And the communication device determines a target network meeting the service requirement corresponding to the service according to the network states of various networks to be selected, wherein the target network is used for transmitting the service message.

The embodiment of the application provides a method for determining a communication network, which receives a service message through a communication device, wherein the service message comprises a service identifier and a first indication, and the first indication is used for indicating the communication device to plan a target network for transmitting the service message. And the communication device determines various networks to be selected according to the identifier of the terminal and the service identifier. And the communication device determines a target network meeting the service requirements corresponding to the services according to the network states of the various networks to be selected and the service requirements. Therefore, when the terminal supports various networks to be selected, the communication network for transmitting the service message can be flexibly selected according to the network type corresponding to the common network type of the terminal and the service requirement by combining the network type of the service requirement. For example, the communication device may select a communication network with high signal strength, no network congestion, high bandwidth and low latency to transmit the service message, so as to improve the transmission efficiency.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the communication device acquires the network state of the network to be selected, and the network state is used for reflecting the congestion level of the network to be selected.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: receiving a service configuration from an application server, wherein the service configuration comprises any one or more of the following information of a service corresponding to the service identifier: service identification, service requirement, or transmission path direction. And according to the service configuration, configuring the network type meeting the service requirement for the service.

In a possible implementation manner, when the network with the network type of PC5 is included in the candidate network, the method provided in the embodiment of the present application further includes: and the communication device acquires the processing capacity of a Road Side Unit (RSU) communicated with the terminal according to the position information of the terminal. The communication device determines a target network meeting the service requirement corresponding to the service according to the network states of the multiple networks to be selected, and the method comprises the following steps: and the communication device determines a target network for transmitting the service message according to the network states of the various networks to be selected and the processing capacity of the RSU. Since the PC5 interface has stronger support for mobility than the Uu interface, and the PC5 interface also enhances the physical layer structure to support higher mobile speed (500km/h), the communication network for transmitting the service message is determined in combination with the processing capability of the RSU, and the target network can be further planned for the service message.

In a possible implementation manner, the determining, by the communication device, a target network for transmitting the service message according to the network states of the multiple candidate networks and the processing capability of the RSU includes: the communication device determines that the terminal supports the PC5 network and the network type configured for the service includes the PC5 network, and acquires the processing capability of the RSU communicating with the terminal according to the position information of the terminal.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is lower than a first threshold, and the target network is a network corresponding to the RSU. The network transmission corresponding to the RSU can support higher moving speed for the low-reliability service.

In a possible implementation manner, the time delay of the service corresponding to the service identifier is lower than a second threshold, and the target network is a network whose network state satisfies the service requirement among the multiple candidate networks or a network corresponding to the RSU.

In a possible implementation manner, the bandwidth of the service corresponding to the service identifier is higher than a third threshold, or the reliability of the service corresponding to the service identifier is higher than a fourth threshold, and the target network is a network whose network state satisfies the service requirement corresponding to the service identifier among the multiple candidate networks, and a network corresponding to the RSU.

In a possible implementation manner, the bandwidth of the service corresponding to the service identifier is higher than a third threshold, and the method provided in this embodiment further includes: the communication device generates one or more message packets of the service message according to the service message, wherein each message packet of the one or more message packets comprises a second indication, and the second indication is used for indicating the sequence of the message packets. And the communication device transmits the one or more message packets to the terminal or the other equipment by adopting a network with a network state meeting the service requirement corresponding to the service identifier in the various networks to be selected and a network corresponding to the RSU. The transmission efficiency can be improved by adopting the network with the network state meeting the service requirement corresponding to the service identification in various networks to be selected and the network corresponding to the RSU to transmit one or more message packets to the terminal or other equipment.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is higher than a fourth threshold, and the method provided in the embodiment of the present application further includes: the communication device executes the copy operation to the service message to obtain a copy service message. The communication device adopts the network with the network state meeting the service requirement corresponding to the service identification in the various networks to be selected to transmit the service message, and adopts the network corresponding to the RSU to transmit the copy service message, and the copy service message and the service message also carry time information, so that the transmission reliability can be provided.

In one possible implementation manner, a communication device is deployed in a terminal, and the communication device acquires, according to location information of the terminal, processing capability of an RSU that communicates with the terminal, and includes: the communication device sends a first request message to a module of the terminal, wherein the first request message is used for requesting the processing capability of the RSU. The communication device receives the processing capabilities of the RSU from the module.

In a possible implementation manner, a communication device is deployed on a platform that provides a service for the terminal, and the communication device obtains a processing capability of a road side unit RSU that communicates with the terminal according to location information of the terminal, including: a communication device obtains processing capabilities of the RSU from the RSU.

In a possible implementation manner, a communication device is deployed on a platform that provides a service for the terminal, and the acquiring, by the communication device, a network state of the candidate network includes: and the communication device acquires the network state of the network to be selected from the core network element in the network to be selected.

In a possible implementation manner, a communication device is deployed in the terminal, and the method provided in the embodiment of the present application further includes: the communication device acquires the network state of the network to be selected, and the method comprises the following steps: and the communication device sends a second request message to the module of the terminal according to the various networks to be selected, wherein the second request message is used for inquiring the network states of the various networks to be selected. The communication device acquires the network states of the various networks to be selected from the module.

In a possible implementation manner, the sender of the service message is the terminal, and the communication device is disposed on the terminal. Or the sender of the service message is the other equipment, and the communication device is deployed on a platform for providing service for the terminal.

In a possible implementation manner, the sender of the service message is other equipment, and the service message further includes an identifier of the terminal. Therefore, in the embodiment of the present application, the communication device may determine the identifier of the terminal according to the service message.

In a possible implementation manner, a sender of a service message is a terminal, and a communication device is disposed in the terminal, so that in this embodiment of the present application, the communication device may determine an identifier of the terminal through an interface or configuration inside the terminal.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the communication device sends the service message to the terminal or other equipment by adopting the target network.

Specifically, the communication device sends the service message to the access device corresponding to the target network, so that the access device corresponding to the target network sends the service message to the terminal or other devices.

In a second aspect, an embodiment of the present application provides a communication network determining method, including: the terminal receives a service message transmitted by the communication device through the target network, wherein the service message comprises a service identifier. And the target network is a network which meets the service requirement corresponding to the service in various networks to be selected. The network to be selected belongs to a network corresponding to the network type supported by the terminal and also belongs to a network corresponding to the network type configured for the service by the communication device. The terminal processes the service message.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is lower than the first threshold, and the target network is a network corresponding to an RSU communicating with the terminal.

In a possible implementation manner, the time delay of the service corresponding to the service identifier is lower than the second threshold, and the target network is a network whose network state satisfies the service requirement corresponding to the service identifier among the multiple candidate networks, or a network corresponding to the RSU.

In a possible implementation manner, the bandwidth of the service corresponding to the service identifier is higher than a third threshold, and the receiving, by the terminal, a service message transmitted by the communication device through the target network includes: and the terminal receives one or more message packets of the service message transmitted by the communication device by adopting a network with a network state meeting the service requirement corresponding to the service identifier and a network corresponding to the RSU in various networks to be selected. Each message packet of the one or more message packets includes a second indication, the second indication indicating an order of the message packets; the terminal processes the service message, including: and the terminal recombines one or more message packets according to the second indication of each message packet.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is higher than the fourth threshold, and the receiving, by the terminal, a service message transmitted by the communication device through the target network includes: and the terminal receives the service message of the network which adopts the network state to meet the service requirement corresponding to the service identifier in various networks to be selected and the copy service message of the network corresponding to the RSU. Copying the service message and carrying the time information in the service message. The terminal processes the service message, including: the terminal processes the service message and copies the time information in the service message in advance. Or, the terminal determines that the distance between the time indicated by the time information of the service message and the time indicated by the time information of the duplicated service message is smaller than the preset distance, and then selects one of the duplicated service message and the service message for processing.

In one possible implementation, the communication device is located in a terminal, and the method further includes: the module in the terminal is further configured to receive a first request message, where the first request message is used to request the processing capability of the RSU. The module in the terminal is also used to send the processing capabilities of the RSU to the communication device. In one possible implementation, the communication device is located in a terminal, and the method further includes: and the module in the terminal periodically receives the processing capacity from the RSU according to a preset period.

It is to be understood that the method performed by the terminal in the second aspect may also be performed by other devices. However, it should be noted that, when the method performed by the terminal in the second aspect is performed by another device, the steps of receiving the first request message and transmitting the processing capability of the RSU to the communication apparatus may not be performed.

In a third aspect, the present application provides a communication device, which may implement the method in the first aspect or any possible implementation manner of the first aspect, and therefore may also achieve the beneficial effects in the first aspect or any possible implementation manner of the first aspect. The communication device may be a device applied to a platform, or may be a device applied to a terminal. The device can realize the method through software, hardware or corresponding software executed by hardware.

An example, an embodiment of the present application provides a communication apparatus, including: the communication unit is used for receiving a service message, wherein the service message is a service message for the communication between the terminal and other equipment through the communication device, the service message comprises a service identifier and a first indication, and the first indication is used for indicating the communication device to plan a target network for transmitting the service message. The processing unit is used for determining various networks to be selected according to the identifier of the terminal and the service identifier; the network to be selected belongs to a network corresponding to a network type supported by the terminal and a network corresponding to a network type configured for the service by the communication device. And the processing unit is further used for determining a target network meeting the service requirement corresponding to the service according to the network states of the multiple networks to be selected, and the target network is used for transmitting the service message.

In a possible implementation manner, the communication unit in the embodiment of the present application is further configured to acquire a network state of the candidate network, where the network state is used to reflect a congestion level of the candidate network.

In a possible implementation manner, the communication unit is further configured to receive a service configuration from an application server, where the service configuration includes any one or more of the following information of a service corresponding to the service identifier: service identification, service requirement, or transmission path direction. And the processing unit is also used for configuring the network type meeting the service requirement for the service according to the service configuration.

In a possible implementation manner, when the network to be selected includes a network with a network type of PC5, the communication unit is further configured to obtain, according to the location information of the terminal, a processing capability of a road side unit RSU in communication with the terminal. And the processing unit is specifically configured to determine a target network for transmitting the service message according to the network states of the multiple networks to be selected and the processing capability of the RSU.

In a possible implementation manner, the communication unit is further specifically configured to determine that the terminal supports a PC5 network and the network type configured for the service includes a PC5 network, and acquire a processing capability of a road side unit RSU communicating with the terminal according to the location information of the terminal.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is lower than a first threshold, and the target network is a network corresponding to the RSU.

In a possible implementation manner, the time delay of the service corresponding to the service identifier is lower than the second threshold, and the target network is a network whose network state satisfies the service requirement corresponding to the service identifier among the multiple candidate networks and a network whose network state is the best among the networks corresponding to the RSUs.

In a possible implementation manner, the bandwidth of the service corresponding to the service identifier is higher than a third threshold, and the processing unit is further configured to generate one or more message packets of the service message according to the service message, where each message packet of the one or more message packets includes a second indication, and the second indication is used to indicate an order of the message packets. And the communication unit is further used for transmitting the one or more message packets to a terminal or other equipment by adopting a network with a network state meeting the service requirement corresponding to the service identifier in multiple networks to be selected and a network corresponding to the RSU.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is higher than the fourth threshold, and the method is further configured to perform a copy operation on the service message to obtain a copy service message. The communication unit is further configured to transmit the service message by using a network whose network state satisfies a service requirement corresponding to a service identifier among the multiple networks to be selected, and transmit the duplicated service message by using a network corresponding to the RSU, where the duplicated service message and the service message also carry time information. This may provide transmission reliability.

In a possible implementation manner, the communication device is disposed in the terminal, and the communication unit is further configured to send a first request message to a module of the terminal, where the first request message is used to request the processing capability of the RSU. And the communication unit is also specifically used for receiving the processing capacity of the RSU from the module.

In a possible implementation manner, the communication device is deployed on a platform that provides services for the terminal, and the communication unit is specifically configured to obtain the processing capability of the RSU from the RSU.

In a possible implementation manner, the communication device is deployed on a platform that provides a service for the terminal, and the communication unit is specifically configured to acquire a network state of the candidate network from a core network element in the candidate network.

In a possible implementation manner, the communication device is disposed at the terminal, and the communication unit is further configured to send a second request message to the module of the terminal according to the multiple candidate networks, where the second request message is used to query network states of the multiple candidate networks. And the communication unit is also used for acquiring the network states of the various networks to be selected from the module.

In one possible implementation, the sender of the service message is a terminal, and the communication device is disposed at the terminal. Or the sender of the service message is other equipment, and the communication device is deployed on a platform for providing service for the terminal.

In a possible implementation manner, the sender of the service message is other equipment, and the service message further includes an identifier of the terminal. Therefore, in the embodiment of the present application, the processing unit may determine the identifier of the terminal according to the service message.

In a possible implementation manner, a sender of a service message is a terminal, and a communication device is deployed in the terminal, so that in this embodiment of the present application, a processing unit may determine an identifier of the terminal according to the sender.

In a fourth aspect, the present application provides a communication device that can implement the method of the second aspect or any possible implementation manner of the second aspect, and therefore can also achieve the beneficial effects of the second aspect or any possible implementation manner of the second aspect. The communication device may be a terminal or a chip applied to the terminal. The device can realize the method through software, hardware or corresponding software executed by hardware.

An example, the communications apparatus, comprising: and the communication unit is used for receiving a service message transmitted by the communication device through the target network, wherein the service message comprises a service identifier. And the target network is a network which meets the service requirement corresponding to the service in various networks to be selected. The network to be selected belongs to a network corresponding to the network type supported by the terminal and also belongs to a network corresponding to the network type configured for the service by the communication device. And the processing unit is used for processing the service message.

In a possible implementation manner, the bandwidth of the service corresponding to the service identifier is higher than a third threshold, and the communication unit is specifically configured to receive one or more message packets of the service message transmitted by a network in which a network state of the communication device in the multiple networks to be selected meets a service requirement corresponding to the service identifier and a network corresponding to the RSU; each of the one or more message packets includes a second indication indicating an order of the message packets. Each of the one or more message packets includes a second indication indicating an order of the message packets. And the processing unit is specifically configured to reassemble one or more message packets according to the second indication of each message packet.

In a possible implementation manner, the reliability of the service corresponding to the service identifier is higher than the fourth threshold, and the communication unit is specifically configured to receive a service message of a network in which a network state in the multiple networks to be selected meets a service requirement corresponding to the service identifier and a duplicated service message of a network corresponding to the RSU, where the duplicated service message and the service message carry time information. And the processing unit is specifically configured to process, according to a preset rule, a service message transmitted by a network in which a network state in the multiple networks to be selected meets a service requirement corresponding to the service identifier and a service message transmitted by a network corresponding to the RSU.

In a possible implementation, the processing unit is specifically configured to preferentially process the service message and to duplicate the service message with the earlier time information.

In a possible implementation manner, the processing unit is specifically configured to determine that a distance between a time indicated by the time information of the service message and a time indicated by the time information of the duplicated service message is smaller than a preset distance, and then select one of the duplicated service message and the service message for processing.

It is to be understood that the method performed by the terminal in the second aspect may also be performed by other devices. However, it should be noted that, when the method performed by the terminal in the fourth aspect is performed by another apparatus, the communication unit may not perform the steps of receiving the first request message and transmitting the processing capability of the RSU to the communication device.

In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or an instruction is stored, and when the computer program or the instruction runs on a computer, the computer is caused to execute the communication network determination method described in any one of the possible implementation manners of the first aspect to the first aspect.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium, in which a computer program or instructions are stored, and when the computer program or instructions are run on a computer, the computer is caused to execute the communication network determining method described in any one of the possible implementation manners of the second aspect to the second aspect.

In a seventh aspect, embodiments of the present application provide a computer program product including instructions that, when executed on a computer, cause the computer to perform the method for determining a communication network described in the first aspect or in various possible implementations of the first aspect.

In an eighth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform a method of communication network determination as described in the second aspect or in various possible implementations of the second aspect.

In a ninth aspect, an embodiment of the present application provides a communication system, where the communication system includes any one or more of the following: the communication device described in the third aspect and various possible implementations, the terminal described in the fourth aspect and various possible implementations of the fourth aspect, and the platform, the communication device being disposed on the platform.

In a tenth aspect, an embodiment of the present application provides a communication system, where the communication system includes any one or more of the following: the communication device described in the third aspect and various possible implementations, the terminal described in the fourth aspect and various possible implementations of the fourth aspect, and the platform are disposed on the terminal.

In an eleventh aspect, the present application provides a communication apparatus, which includes one or more modules, configured to implement the methods of the first and second aspects, where the one or more modules may correspond to each step in the methods of the first and second aspects.

Any one of the above-provided apparatuses, computer storage media, computer program products, or communication systems is configured to execute the above-provided corresponding methods, and therefore, the beneficial effects that can be achieved by the apparatuses, the computer storage media, the computer program products, or the communication systems can refer to the beneficial effects of the corresponding schemes in the above-provided corresponding methods, and are not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 3 is a first flowchart illustrating a communication network determining method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a second method for determining a communication network according to an embodiment of the present application;

fig. 5 is a schematic diagram of a target network transmitting a service message according to an embodiment of the present application;

fig. 6 is a schematic diagram of another target network transmitting a service message according to an embodiment of the present application;

fig. 7 is a schematic diagram of a target network transmitting a service message according to an embodiment of the present application;

fig. 8 is a third schematic flowchart of a communication network determining method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed Description

In the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same or similar items having substantially the same function and action. For example, the first threshold and the second threshold are only used for distinguishing different thresholds, and the sequence order of the thresholds is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It is noted that, in the present application, words such as "exemplary" or "for example" are used to mean exemplary, illustrative, or descriptive. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. The term "system" may be used interchangeably with "network". CDMA systems may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and the like. UTRA may include Wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 may cover the Interim Standard (IS) 2000(IS-2000), IS-95 and IS-856 standards. TDMA systems may implement wireless technologies such as global system for mobile communications (GSM). The OFDMA system may implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash OFDMA, etc. UTRA and E-UTRA are UMTS as well as UMTS evolved versions. Various versions of 3GPP in Long Term Evolution (LTE) and LTE-based evolution are new versions of UMTS using E-UTRA. The 5G communication system, New Radio (NR), is the next generation communication system under study. In addition, the communication system can also be applied to future-oriented communication technologies, and the technical solutions provided by the embodiments of the present application are all applied.

The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. In the embodiment of the present application, the method provided is applied to an NR system or a 5G network as an example.

Before describing the embodiments of the present application, the terms related to the embodiments of the present application will be explained as follows:

1) and downlink refers to a process of sending a service message to a terminal by an application server or a platform through a communication device.

2) And uplink refers to a process in which a terminal sends a service message to an application server, other terminals or a platform through a communication device.

3) The network types, referred to in this embodiment, are network types of access networks corresponding to various Radio Access Technologies (RATs), and may be, for example, network types of access networks such as LTE, 5G, PC5 networks, narrowband Band-Internet of Things (NB-IoT), 2G, 3G, WLAN, and Bluetooth (Bluetooth). It should be noted that, when the network type is a PC5 network, the network type specifically includes a PC5 interface in an LTE network and a PC5 interface in 5G. When the network type LTE is involved, the LTE-Uu is specifically referred to; when referring to network type 5G, it is specifically 5G-Uu. In the following description, for simplicity of description, only the PC5 interface, LTE, 5G, is described.

As shown in fig. 1, fig. 1 illustrates a communication system provided in an embodiment of the present application, where the communication system includes: a terminal 10, an application server in communication with the terminal 10, and a platform 40 for providing communication network planning services for the terminal 10 and the application server. A communication device 50 is disposed in the platform 40. The communication device 50 may be a logic module with processing function in the platform 40. In the embodiment of the present application, the terminal 10 may communicate with the platform 40 through any one or more access devices 20 in at least one access manner. It should be understood that when the terminal 10 communicates with the platform 40 through the plurality of access devices 20 in a plurality of access manners, the terminal 10 may also be considered as a terminal in a dual-connection or multi-connection state. The terminal 10 may also have a first application thereon that communicates with an application server. For example, the first application may be in-vehicle software. The terminal 10, which is a device having a wireless communication function, may be deployed on land, including indoors or outdoors, hand-held, or in a vehicle. And can also be deployed on the water surface (such as a ship and the like). And may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). A terminal, also referred to as User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), a terminal device, and the like, is a device for providing voice and/or data connectivity to a user. The terminal comprises a vehicle with a corresponding communication function, or a vehicle-mounted communication device, or other embedded communication devices, and can also be a user handheld communication device, including a mobile phone, a tablet computer and the like. Currently, the terminal may be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, Mobile Internet Device (MID), wearable device (e.g. smart watch, smart bracelet, pedometer, etc.), vehicle-mounted device (e.g. car, bicycle, electric car, airplane, ship, train, high-speed rail, etc.), Virtual Reality (VR) device, Augmented Reality (AR) device, wireless terminal in industrial control (industrial control), smart home device (e.g. refrigerator, television, air conditioner, electric meter, etc.), smart robot, workshop device, wireless terminal in self drive (driving), wireless terminal in remote surgery (remote medical supply), wireless terminal in smart grid (smart grid), wireless terminal in transportation safety (transportation safety), wireless terminal in smart city (city), or a wireless terminal in a smart home (smart home), a flying device (e.g., a smart robot, a hot air balloon, a drone, an airplane), etc. In one possible application scenario, the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device. In the present application, for convenience of description, a Chip disposed in the device, such as a System-On-a-Chip (SOC), a baseband Chip, or other chips having a communication function, may also be referred to as a terminal.

Access device 20 may also be referred to as a wireless access device or a network device. Such as a Radio Access Network (RAN) node that accesses the terminal to a wireless network. Currently, some examples of access devices are: next Generation Node B (The Next Generation Node B, gNB), Transmission Reception Point (TRP), evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), base band unit (WIFI), or BBUs Access Point (AP), etc. In one network configuration, a network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node. The access device may also be a wireless backhaul device, a vehicle mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, etc.

Illustratively, the terminal 10 may communicate with the platform 40 via a 3rd Generation Partnership Project (3 GPP) or non-3 rd Generation Partnership Project (non 3GPP) access technology.

For example, the 3GPP access technology may be an access technology adopted in a Long Term Evolution (LTE) (also referred to as 4G) system, a 2G system, a 3G system, or a 5G system. An Access Network that employs the 3GPP Access technology is referred to as a Radio Access Network (RAN). For example, the terminal 10 may access the network through an access device in a 2G, 3G, 4G or 5G system using 3GPP access technology. The non-3 GPP access technology may be an untrusted non3GPP access technology or a trusted non3GPP access technology. Non-3 GPP access technologies may include: wireless fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMAX), Code Division Multiple Access (CDMA), Wireless Local Area Network (WLAN), fixed network technology or wired technology, and the like. The terminal 10 may access a network through an air interface technology typified by Wireless Fidelity (WIFI). In non-3 GPP, the access device may be an Access Point (AP).

For example, the platform 40 in the embodiment of the present application may be a server deployed on a cloud. Or the platform 40 may be an edge platform. For example, the edge platform may be a server deployed near the terminal.

In one possible implementation, the communication system shown in fig. 1 further includes: one or more terminals, such as Road Side Unit (RSU) 60, or other terminals, in communication with the terminal 10. The terminal 10 has a first interface with each of the one or more rsus 60. The interface between the terminal 10 and one or more access devices 20 may be referred to as a second interface. It should be understood that the terminal 10 may also communicate with the platform 40 through one or more roadside units 60.

For example, the first interface may be a PC5 interface. The PC5 interface adopts the special frequency band (such as 5.9GHz) of Internet of vehicles. For example, the second interface may be a Uu interface in a 3G network, a 5G network, a 4G network, or an NB-IoT, using a cellular frequency band (e.g., 1.8 GHz). The second interface may be a Um interface in a 2G network. The names of the first interface and the second interface are merely examples, and the names of the first interface and the second interface are not limited in the embodiments of the present application.

In the embodiment of the present application, a vehicle to electrical (V2X) service may be transmitted between the terminal 10 and the roadside unit 60. For example, the terminal 10 and the roadside unit 60 may transmit safety information such as their own vehicle speed, driving direction, specific location, whether emergency braking is applied, whether overtaking is required, etc., to each other.

Illustratively, taking the terminal 10 as a vehicle, the platform 40 in the embodiment of the present application may make a policy for the terminal 10 based on the security information sent by the terminal 10, for example, if the terminal 10 sends a cut-in request to the platform 40 via one or more of the access device 20 or the RSU 60. The platform 40 may return the cut-in maneuver information to the terminal 10 via one or more of the access device 20 or the RSU 60. For example, the passing strategy information may include: how many vehicles are in front of the terminal 10, how far to travel to merge, etc. The application server is configured to send a service message to the terminal 10, or the application server is configured to receive a service message from the terminal 10, where the service message includes a service identifier, and the service identifier is used to determine a service and a service type to which the service belongs. For example, the service and the service type in the embodiment of the present application may be as shown in table 1 below:

table 1 service configuration

As shown in fig. 2, fig. 2 illustrates another communication system provided in the embodiment of the present application, which is different from fig. 1 in that: the communication device 50 is located in the terminal 10 in fig. 2. It should be understood that the solutions shown in fig. 1 and 2 can be combined, that is, in the communication system shown in fig. 1 or 2, the terminal 10 and the platform 40 can simultaneously integrate the functions of the communication device 50 described in this application.

As shown in fig. 3, fig. 3 is a schematic flowchart illustrating a communication network determining method according to an embodiment of the present application. It should be noted that the method shown in fig. 3 is applicable to both the uplink message flow and the downlink message flow. For the uplink message flow, the communication device in the method is deployed on the terminal, such as the architecture illustrated in fig. 2; for the downlink message flow, the communication device described in the method is deployed on a platform, such as the architecture described in fig. 1. The method comprises the following steps:

step 101, a communication device receives a service message, wherein the service message is a service message for a terminal to communicate with other equipment through the communication device. The service message comprises a service identity and a first indication. The first indication is used for instructing the communication device to plan a target network for transmitting the service message.

Illustratively, the service identification may be used to determine the service and the type of service to which the service belongs. For example, the communication device has a service configuration as shown in table 1, so that after the communication device determines a service according to the service identifier, the service type and the service requirement of the service can be determined by combining table 1.

And 102, the communication device determines various networks to be selected according to the identifier of the terminal and the service identifier.

The network to be selected is an intersection of a network supported by the terminal and a network configured for the service, that is, the network to be selected belongs to both a network corresponding to a network type supported by the terminal and a network corresponding to a network type configured for the service by the communication device.

As an example, step 102 in the embodiment of the present application may be specifically implemented by the following manners: the communication device determines the network corresponding to the one or more network types supported by the terminal according to the identifier of the terminal, and then selects the network corresponding to the network type configured for the service from the networks corresponding to the one or more network types supported by the terminal.

For example, the communication device determines, according to the identifier of the terminal, that the networks supported by the terminal are 3G, 4G, and 5G, and the networks corresponding to the network types configured for the service are 4G and 5G, then the communication device determines that the various networks to be selected are 4G and 5G.

Or, as another example, step 102 in the embodiment of the present application may be specifically implemented by: and the communication device determines a network corresponding to the network type configured for the service according to the service identifier, and then selects a network corresponding to one or more network types supported by the terminal from the network corresponding to the network type configured for the service as a plurality of networks to be selected.

For example, the identifier of the terminal in the embodiment of the present application may be any one or more of the following identifiers: an Internet Protocol (IP), a subscription permanent identifier (SUPI), a Permanent Equipment Identifier (PEI), a General Public Subscription Identifier (GPSI), an International Mobile Subscriber Identifier (IMSI), an International Mobile Equipment Identifier (IMEI), an IP address, and a mobile station international integrated services digital network number (MSISDN). In the following embodiments, the description of the present disclosure may be referred to for identification related to a terminal, and details are not repeated.

It should be understood that, in a scenario where a receiver of a service message is a terminal, the service message is a downlink message sent to the terminal, the service message includes an identifier of the terminal, and the communication device may obtain the identifier of the terminal from the service message. When the service message is an uplink message sent by the terminal to other equipment, the communication device is integrated in the terminal, and the communication device can determine the identifier of the terminal through an interface or configuration inside the terminal.

It should be noted that, if the terminal supports multiple candidate network types, the communication device may determine the network state of the network corresponding to each network type according to the high bandwidth and the low delay.

For example, in the embodiment of the present application, the network status may be a Received Signal Strength (RSS) of the network, which may be referred to as signal strength or a congestion level of the network. The congestion level of the network is used to reflect the congestion level of the network. For example, the congestion level of the network may include any one or more of: the network is in no congestion, light congestion, heavy congestion. For example, the signal strength may be any one or more of Radio Signal Received Power (RSRP) or Radio Signal Received Quality (RSRQ), Received Signal Strength Indicator (RSSI).

The signal strength in the embodiment of the present application can be measured by high, medium and low. For example, if the signal strength of the network is between-50 dbm and 0dbm, it means that the signal of the network is good and can satisfy the basic use, the signal strength can be considered high. The signal strength of the network may be considered moderate if it is less than or equal to-50 dbm.

Illustratively, the high bandwidth may be 80% of a theoretical value in the case that the network type is 2G/3G/4G/NB-Uu, for example, when the network type is 2G-GSM, the theoretical value of the uplink/downlink bandwidth may be 9.6K/14.4K. For example, when the network type is 3G-CDMA, the theoretical value of the uplink/downlink bandwidth may be 1.8M/3.1M. When the network type is 3G-WCDMA, the theoretical value of the uplink/downlink bandwidth may be 5.76M/7.2M. When the network type is 4G-LTE, the theoretical value of the uplink/downlink bandwidth may be 50M/100M. When the network type is NB-IoT, the downlink rate theoretical value may be: greater than 160kbps and less than 250 kbps. The theoretical value of the uplink rate may be: greater than 160kbps and less than 250 kbps.

For example, when the network type is 2G/3G/4G/NB, the low latency can be understood as: less than or equal to the theoretical value of delay of various network types multiplied by 110%. For example, when the network type is 2G, the theoretical delay value may be 1 s. When the network type is 3G, the theoretical delay value may be 600 ms. The theoretical delay value may be 100ms when the network type is 4G. And when the network type is NB, the theoretical time delay value is 10 s.

And 103, determining a target network meeting the service requirement corresponding to the service by the communication device according to the network states of the various networks to be selected. Wherein the target network is used for transmitting the service message.

It should be noted that, in the embodiment of the present application, the target network may be one or more candidate networks that meet a service requirement among multiple candidate networks. It should be understood that, if the target network is two or more candidate networks satisfying the service requirement among the multiple candidate networks, it may be understood that the service message is transmitted by using multiple communication paths. For specific description of multi-communication path transmission, reference may be made to the following embodiments, which are not described herein again.

In a possible embodiment, the target network in the embodiment of the present application is one or more candidate networks of which the network states satisfy the service requirements corresponding to the service identifiers among the multiple candidate networks. Or the target network is the network with the highest priority in the various networks to be selected.

Because the service requirements corresponding to the services of different service types are different, the target network for transmitting the service message is determined by combining the service requirements of the services and the network state of the network to be selected, so that the target network can meet the service transmission requirements.

It is to be understood that, after the communication apparatus determines the target network in the embodiment of the present application, the target network may be used to transmit the service message to the terminal or other device. Specifically, the communication device sends the service message to the access device (for example, the base station may also be the RSU) corresponding to the target network, so that the access device corresponding to the target network sends the service message to the terminal or other devices.

Illustratively, a traffic demand may refer to a Quality of Service (QoS) that needs to be met when transmitting traffic. The service requirements of the specific service may refer to the description in table 1, and are not described herein again.

Illustratively, if the service requirement is ultrahigh reliability, the target network is the network with the best network state in the multiple candidate networks. Or the target network is a network in which the network state in various networks to be selected can ensure the high-reliability transmission of the service. For example, if the 4G network is heavily congested and the 5G network is lightly congested among the 4G network and the 5G network supported by the terminal, the communication apparatus may determine that the target network is the 5G network. Or the target network is a network with network states in various networks to be selected, which can ensure that the service meets the low-delay transmission. Or the target network is a network in which the network state in various networks to be selected can ensure that the service meets the high-bandwidth transmission.

Illustratively, if the service requirement is low reliability, the target network is a network with the lowest network state in the multiple candidate networks.

It should be noted that the target network may be one network whose network state satisfies the service requirement corresponding to the service identifier among the multiple candidate networks, or may be multiple networks. For example, for low reliability service, the communication device may determine to transmit the service message using one of the one or more candidate networks whose network status satisfies the service requirement corresponding to the service identifier. The high-reliability service communication device can determine that a plurality of networks which adopt the network states in a plurality of networks to be selected to meet the service requirements corresponding to the service identification transmit the service messages.

Illustratively, the network supported by the terminal corresponds to NB-IoT and GSM according to the network state of the network measured by RSRP. Wherein the RSRP value of the NB-IoT is greater than the RSRP value of GSM, then the communication device may determine to transmit the traffic message with the NB-IoT.

Based on the general method flow shown in fig. 3, the following further describes the downlink and uplink message sending flows provided by the embodiment of the present application, respectively, with fig. 4 and fig. 8 as examples.

Fig. 4 is a flowchart illustrating a method provided in an embodiment of the present application, where a sender of a service message is an application server or a platform, and a receiver of the service message is a terminal. The method comprises the following steps: step 407, step 408, and step 411. Step 407, step 408, and step 411 refer to step 101, step 102, and step 103 in the above embodiments, respectively, and are not described herein again.

As shown in the downlink message flow shown in fig. 4, the service message sent by the platform to the terminal may be a service message generated by the platform itself, or may be a service message sent by only another device to the terminal. When the service message sent by the platform to the terminal is a service message generated by the platform itself, the communication device in the platform receives the service message from other logic units in the platform. When the service message sent by the platform to the terminal is a message received from another application server, the method provided by the embodiment of the present application further includes, before step 407:

step 406, the other device (e.g., application server) sends a service message to the communication apparatus.

Correspondingly, step 407 in the embodiment of the present application may be specifically implemented by the following manner: the communication device receives a service message from the application server. Fig. 3 and 4 in the embodiment of the present application are described in the following behavior example.

It should be noted that, when the receiver of the service message is a terminal, the service message also needs to carry an identifier of the terminal. That is, the service message in step 406 includes: the first indication, the terminal identification and the service identification.

In the embodiment of the present application, the first indication in the service message is optional. For example, the first indication may be a comlndication identification. And if the first indication is not carried in the service message, the service message is used for indicating the communication device to randomly select the communication network for transmitting the service message. It is of course also understood that if the service message carries the first indication, the service message is used to instruct the communication device to select the communication network for transmitting the service message according to the following specific implementation of step 411.

In an alternative embodiment, as shown in fig. 4, the method provided in this embodiment of the present application may further include, after step 411:

the communication device transmits the service message by adopting a target network;

a terminal receives a service message transmitted by a communication device through a target network, and the target network is a network which meets service requirements corresponding to services in network states of various networks to be selected;

the terminal processes the service message.

In one possible implementation manner, if the reliability of the service corresponding to the service identifier is lower than the first threshold, the communication device using the target network to transmit the service message may be implemented by the following step 4121: the reception of the service message transmitted by the communication device through the target network by the terminal may be implemented through step 4131. The terminal processing the service message may be implemented in step 4141.

In another possible implementation manner, if the bandwidth of the service corresponding to the service identifier is higher than the third threshold, the communication device using the target network to transmit the service message may be implemented by the following steps 4122 and 4123: the reception of the service message transmitted by the communication device through the target network by the terminal may be implemented through step 4132. The processing of the service message by the terminal may be performed in step 4142.

In another possible implementation manner, for the service with the service identifier indicating that the reliability of the service is higher than the fourth threshold, the communication device using the target network to transmit the service message may be implemented by the following step 4124: the reception of the service message transmitted by the communication device through the target network by the terminal may be implemented through step 4133. The processing of the service message by the terminal may be performed in step 4143.

Specifically, the implementation of step 4121, step 4123, step 4122, step 4124, step 4131, step 4132, or step 4133, step 4141, step 4142, or step 4143 may refer to the description in the following embodiments, and will not be described herein again.

It should be understood that step 4131, or step 4132, or step 4133, step 4142, or step 4143 and the following embodiments are described by taking a terminal as an example, the terminal receives a service message and processes the service message, and if the service message is received by other devices, the steps executed by the other devices may refer to the steps executed by the terminal, except that when the service message is processed by other devices, the execution main body in the terminal processing process is replaced by the other devices, which is described herein in a unified manner and will not be described again in detail later.

As shown in fig. 4, in a possible embodiment of the present application, the method provided in this embodiment of the present application further includes, before step 411:

step 409, the communication device obtains the network state of the network to be selected, and the network state is used for reflecting the congestion level of the network to be selected.

As shown in fig. 4, in a possible embodiment of the present application, when the network with the network type of PC5 is included in the candidate network, the method provided in this embodiment further includes, before step 411:

step 410, the communication device obtains the processing capability of the RSU communicating with the terminal according to the location information of the terminal.

When the communication device is deployed on a platform for providing services for the terminal, step 410 in this embodiment of the present application may be specifically implemented in the following manner: the communication device acquires the processing capability of the RSU from the RSU. Specifically, the communication device transmits an inquiry request message to the RSU, the inquiry request message requesting the processing capability of the RSU. The communication device receives a query response message from the RSU, which includes the processing capabilities of the RSU.

It should be understood that the RSU in communication with the terminal may include one or more RSUs. If the communication device determines that there are a plurality of RSUs communicating with the terminal, the communication device needs to acquire the processing capability of each of the plurality of RSUs. Of course, the communication device may also select at least one RSU from the plurality of RSUs, the distance between which and the terminal is less than or equal to the preset distance, according to the location information of the terminal. The embodiment of the present application does not limit the size of the preset distance.

It is understood that step 410 in the embodiment of the present application may be specifically implemented by the following means: the communication device determines that the terminal supports the PC5 network and the network type configured for the service comprises the PC5 network, and the communication device acquires the processing capacity of the RSU (road side unit) communicated with the terminal according to the position information of the terminal. That is, when the terminal supports the PC5 network and the service support PC5 network, the communication device acquires the processing capability of the RSU communicating with the terminal.

The communications device may also determine the congestion level of the PC5 interface supported by the terminal. If the communication apparatus determines that the PC5 interface supported by the terminal is heavily congested even if the terminal supports the PC5 interface, the communication apparatus may not acquire the processing capability of the RSU communicating with the terminal. This avoids the decrease in transmission reliability caused by the RSU sending traffic messages due to the PC5 interface being in a heavily congested state. Furthermore, if the PC5 interface is in a heavily congested state, the processing capability of the RSU is not acquired, and the processing load of the communication apparatus can also be reduced. If the communication device determines that the congestion level of the PC5 interface is lower than the preset congestion level and the network type configured for the service includes the PC5 network, the communication device determines to acquire the processing capability of the RSU communicating with the terminal.

The processing power for the RSU may also refer to the congestion level of the RSU. The congestion level of the RSU may refer to the description of the congestion level of the network, which is not described herein.

Accordingly, as shown in fig. 4, step 411 may be specifically implemented by: and the communication device determines a target network for transmitting the service message according to the network states of various networks to be selected and the processing capacity of the RSU.

As an example 1, the reliability of the service corresponding to the service identifier is lower than the first threshold, and the target network is a network corresponding to the RSU. As shown in fig. 4, step 4121 and step 4131 in the embodiment of the present application may be implemented by:

step 4121, the communication device transmits a service message by using the network corresponding to the RSU, where the reliability of the service corresponding to the service identifier in the service message is lower than the first threshold. Correspondingly, in step 4131, the terminal receives the service message transmitted by the network corresponding to the RSU. Step 4141, the terminal processes the service message transmitted by the network corresponding to the RSU.

In the embodiment of the present application, the reliability of the service lower than the first threshold may also be described as: the reliability requirement of the service is less than or equal to a first threshold. In the embodiment of the present application, a service whose reliability is lower than a first threshold is referred to as: low reliability traffic. The first threshold is not limited in the embodiment of the present application.

For example, if the low reliability service is a traffic light or traffic condition broadcast as shown in table 1, the communication device may preferably select to use the RSU to transmit the service message to the terminal or other devices. For uplink, the terminal transmits the service message with the traffic signal lamp to the RSU, and the RSU transmits the service message with the traffic signal lamp to other equipment. For downlink, the communication device transmits the traffic signal lamp-carried service message from other equipment to the RSU, and the RSU transmits the traffic signal lamp-carried service message to the terminal.

As still another example, step 411 in the embodiment of the present application may be implemented by: and the time delay of the service corresponding to the service identifier is lower than a second threshold, and the target network is a network of which the network state meets the service requirement corresponding to the service identifier or a network corresponding to the RSU in the various networks to be selected.

Specifically, for a service whose time delay of the service corresponding to the service identifier is lower than the second threshold, the manner in which the communication device determines the target network may be specifically implemented with reference to the following manner 1 to manner 4:

in the mode 1, the target network is the network with the network state meeting the service requirement corresponding to the service identifier in various networks to be selected, and the network state corresponding to the RSU is the best.

And in the mode 2, the communication device selects any one of the network with the network state meeting the service requirement corresponding to the service identifier and the network corresponding to the RSU from the multiple networks to be selected as a target network.

In the mode 3, the communication device may select a target network from the network whose network state satisfies the service requirement corresponding to the service identifier and the network corresponding to the RSU among the multiple candidate networks by combining the congestion level of the PC5 interface and the congestion level of the Uu interface.

For example, if the communications device determines that the congestion level of the PC5 interface is heavily congested and the congestion level of the Uu interface is moderately congested, the target network is the network corresponding to the Uu interface.

It should be understood that, when combining the congestion level of the PC5 interface and the congestion level of the Uu interface, if the congestion level of the PC5 interface and the congestion level of the Uu interface are consistent, the communication device may randomly select, which is not limited in the embodiment of the present application.

And 4, the target network is a network with a network state meeting the service requirement corresponding to the service identifier in various networks to be selected and a network with the highest priority in the networks corresponding to the RSU. That is, the network whose network state satisfies the service requirement corresponding to the service identifier and the network corresponding to the RSU correspond to a priority level respectively.

In the embodiment of the present application, a service whose time delay is lower than a second threshold is referred to as: low latency traffic. A low latency service may be designated as a service that does not have a high latency requirement. In the embodiment of the present application, a service whose time delay is lower than a second threshold may also be described as follows: the latency requirement of the traffic is less than or equal to a second threshold.

For example, the low latency traffic may be a remote control command for autonomous parking. If the network state of the target network is better than that of the RSU, for the uplink, the terminal transmits the service message carrying the remote control command for autonomous parking to the access device corresponding to the target network, and the access device corresponding to the target network transmits the service message carrying the remote control command for autonomous parking to other devices. For downlink, the communication device transmits the service message carrying the remote control command of autonomous parking to the access device corresponding to the target network, and the access device corresponding to the target network transmits the service message carrying the remote control command of autonomous parking to the terminal.

As still another example 2 of the present application, step 411 in the embodiment of the present application is implemented by: the bandwidth of the service corresponding to the service identifier is higher than a third threshold, or the reliability of the service corresponding to the service identifier is higher than a fourth threshold, and the target network is a network of which the network state satisfies the service requirement corresponding to the service identifier among the multiple networks to be selected, and a network corresponding to the RSU.

In the embodiment of the present application, a service whose bandwidth is higher than the third threshold may be referred to as a high bandwidth service. The traffic whose reliability is higher than the fourth threshold is called ultra-high reliability traffic. The bandwidth of the traffic being above the third threshold may also be described as: the bandwidth requirement of the traffic is greater than or equal to a third threshold. The reliability of the service above the fourth threshold may also be described as: the reliability requirement of the service is greater than or equal to a fourth threshold. For example, the ultra-high reliability traffic may be ultra-high-reliable low latency communication (URLLC) traffic.

It should be noted that, for a service whose bandwidth of the service corresponding to the service identifier is higher than the third threshold, or a service whose reliability of the service corresponding to the service identifier is higher than the fourth threshold, the target network may also be two or more networks whose network states meet the service requirements corresponding to the service identifier in the multiple candidate networks. That is, for the high bandwidth service or the ultra-high reliability service, the target network for transmitting the service message may be composed of not only the network whose network status satisfies the service requirement corresponding to the service identifier among the various networks to be selected and the network corresponding to the RSU, but also two or more networks whose network status satisfies the service requirement among the various networks to be selected. Of course, the target network transmitting the service message may also be combined by a network corresponding to a plurality of RSUs communicating with the terminal.

In the embodiment of the present application, a manner of selecting two or more networks from multiple candidate networks and/or networks corresponding to RSUs as a target network may be referred to as multi-communication path transmission. It should be appreciated that if the communication device employs multiple communication paths to transmit traffic messages, the terminal or other device may receive the traffic messages on the multiple communication paths determined by the communication device.

As shown in fig. 5, for example, if the target network for multi-communication path transmission is finally determined to be a 4G network and a 5G network in the multiple candidate networks, the communication device may determine to transmit the service message to the terminal using the 4G network and the 5G network.

As shown in fig. 6, for example, the communication device finally determines, according to the processing capabilities of the RSU and the various networks to be selected, that the target network transmitted by multiple communication paths is a 4G network and a network corresponding to the RSU, and then the communication device may determine to transmit the service message to the terminal by using the networks corresponding to the 4G network and the RSU.

As shown in fig. 7, for example, the communication apparatus finally determines that the target networks of the multi-communication-path transmission are RSU1 and RSU2, the communication apparatus transmits the traffic message to the terminal using RSU1 and RSU 2.

As a specific implementation of example 2: for the service whose service identifier indicates that the bandwidth of the service is higher than the third threshold, as shown in fig. 4, step 4122 and step 4123 provided in this embodiment may be specifically implemented in the following manner:

step 4122 the communications device generates one or more message packets for the service message based on the service message. Each of the one or more message packets includes a second indication indicating an order of the message packets.

The second indication in the embodiment of the present application is used for the terminal or other devices to determine whether the received message packet is complete.

Step 4123, the communication device transmits the one or more message packets to the terminal or other devices by using the network with the network status satisfying the service requirement corresponding to the service identifier in the multiple networks to be selected and the network corresponding to the RSU. It should be appreciated that the traffic message is sent to the other devices for the upstream communication means via step 4123. The communicating step 4123 sends a traffic message to the terminal for the downstream communication device.

That is, the one or more data packets are transmitted to the terminal together by the network in which the network state in the multiple candidate networks meets the service requirement corresponding to the service identifier and the network corresponding to the RSU.

For example, if one or more message packets include message packet 1-message packet 5, then message packet 1-message packet 3 may be transmitted by a network whose network status satisfies the service requirement corresponding to the service identifier in various candidate networks, and message packet 4 and message packet 5 may be transmitted by a network corresponding to the RSU.

Accordingly, as shown in fig. 4, step 4132 in the embodiment of the present application may specifically be implemented by: step 4132, the terminal receives one or more message packets of the service message transmitted by the communication device by the network in which the network state satisfies the service requirement corresponding to the service identifier among the multiple networks to be selected and the network corresponding to the RSU.

Accordingly, as shown in fig. 4, step 4142 in the embodiment of the present application may be specifically implemented by: and the terminal recombines one or more message packets according to the second indication of each message packet. It will be appreciated that the terminal may reassemble one or more message packets by determining that the complete one or more message packets have been received.

As another specific implementation of example 2: for the service whose service identifier indicates that the reliability of the service is higher than the fourth threshold, as shown in fig. 4, step 4124 provided in this embodiment of the present application may be specifically implemented in the following manner:

step 4124, the communication device transmits the service message by using the network whose network status satisfies the service requirement corresponding to the service identifier among the multiple networks to be selected, and transmits the duplicated service message by using the network corresponding to the RSU, where the duplicated service message and the service message also carry time information. It is understood that step 4124 is preceded by the steps of: the communication device performs a copy operation on the service message to obtain a copied service message.

It should be appreciated that the traffic message is sent to the other devices for the upstream communication means via step 4124. For downlink transmission, the communication device sends a traffic message to the terminal, via step 4124. It should be understood that, for the service whose service identifier indicates that the reliability of the service is higher than the fourth threshold, the communication device may copy the service message, transmit the source service message through a network whose network status satisfies the service requirement corresponding to the service identifier among the multiple candidate networks, and transmit the copied service message through a network corresponding to the RSU. The other source service messages are the same as the duplicate service messages.

Or, the communication device transmits the source service message through the network corresponding to one RSU, and transmits the copy service message through the network corresponding to another RSU. Or the communication device can transmit the source service message through one of the multiple candidate networks which meets the service requirement, and transmit the duplicate service message through the other one of the multiple candidate networks which meets the service requirement.

Accordingly, step 4133 may be specifically performed by: and the terminal receives the service message of the network which adopts the network state to meet the service requirement corresponding to the service identification in the various networks to be selected and the service message of the network which adopts the RSU. Step 4143 may be specifically performed by: the terminal preferentially processes the service message transmitted by the network which meets the service requirement by adopting the network state in various networks to be selected and the service message with the front time information in the duplicated service message transmitted by adopting the network corresponding to the RSU. Or the terminal preferentially processes the service message transmitted by the network with the network state meeting the service requirement in various networks to be selected and the service message with the later time information in the duplicated service message transmitted by the network corresponding to the RSU.

For example, the time information in the duplicated service message indicates time 1, the time information in the service message indicates time 2, and the time 1 is earlier than the time 2, the terminal preferentially processes the duplicated service message.

Alternatively, step 4143 may be specifically performed by: and the terminal determines that the distance between the time indicated by the time information of the service message transmitted by the network which meets the service requirement corresponding to the service identifier by adopting the network state in the various networks to be selected and the time indicated by the time information of the duplicated service message transmitted by the network corresponding to the RSU is smaller than the preset distance, and the communication device selects any one of the service message transmitted by the network which meets the service requirement by adopting the network state in the various networks to be selected and the duplicated service message transmitted by the network corresponding to the RSU.

And if the service message carries the time information, the terminal or other equipment makes a decision according to the service identifier in the service message. For example, a), the terminal or other device processes the traffic with the former time information preferentially and discards the traffic with the latter time information. b) And the terminal or other equipment waits for the service messages in different communication networks to be received, ensures that the time information of the two service messages can be within a certain time range, and then processes the service messages respectively received through the different communication networks.

Illustratively, for a service with ultrahigh reliability, such as an ADAS vehicle control command, the communication device sends the same service message carrying the ADAS vehicle control command to a network with a network status satisfying a service requirement corresponding to the service identifier and a network corresponding to the RSU in the plurality of networks to be selected, and in addition, the service message carries time information.

In a possible embodiment, the communication device is deployed on a platform for providing a service for the terminal, and step 409 in this embodiment may be specifically implemented by: and the communication device acquires the network state of the network to be selected from the core network element in the network to be selected.

In a possible implementation manner, step 107 in the embodiment of the present application may be specifically implemented by the following manner: the communication device determines an access device to which the terminal is accessed. The communication device sends a Network Status Request message to a core Network element through an Application Programming Interface (API). The Network element of the core Network sends a Network Status Response message to the communication device. The network state request message is used for requesting the network states of a plurality of networks to be selected. For example, the network status request message may carry information of a plurality of candidate networks. The network status response message may carry the network statuses of the multiple candidate networks.

Illustratively, the core network element may be a network element in a core network accessed by the access device. For example, in a 4G network, the core network element may be a Service Capability Exposure Function (SCEF) network element. In a 5G network, the core network element may be a network capability exposure function (NEF) network element.

As another possible embodiment of the present application, as shown in fig. 4, the method provided in this embodiment of the present application further includes, before step 406:

step 404, the communication device receives a service configuration from the application server, where the service configuration includes any one or more of the following information of a service corresponding to the service identifier: service identification, service requirement, or transmission path direction.

Specifically, the contents of the service configuration may refer to the description in table 1.

Step 405, the communication device configures a network type meeting the service requirement for the service according to the service configuration. Specifically, as shown in table 2:

table 2 configuration of network types each service may support

It should be noted that, whether the communication device is deployed on a terminal or a platform, the communication device in the embodiment of the present application may also be used to perform step 404 and step 405.

In a possible embodiment, as shown in fig. 4, the method provided in this embodiment further includes, before step 407:

step 401, a terminal registers with one or more networks supported by the terminal. Specifically, the process of registering the terminal to the network may refer to the description in the prior art, and is not described herein again.

At step 402, the RSU registers with one or more networks supported by the RSU. Specifically, the process of registering the RSU to the network may refer to the description in the prior art, and is not described herein again.

And step 403, the terminal registers to the platform and simultaneously carries the network type registered by the terminal, the current mobile state of the terminal and the network type supported by the terminal. And the terminal reports the signal intensity of the terminal. Meanwhile, the communication device maintains the communication network of the terminal, including the current network type of the terminal, the supported communication modes (PC5 interface/Uu interface), IP address and port number, the corresponding SIM card ID, and the corresponding network communication identifier IMSI/MSISDN/externalID. For example, as shown in table 3:

table 3 communication network of terminals maintained by communication devices

For uplink, in combination with the architecture shown in fig. 2, as shown in fig. 8, fig. 8 shows a flowchart of a method for determining a communication network according to an embodiment of the present application, and for descriptions in fig. 8 that are the same as those in fig. 4, reference may be specifically made to each other for reference, and details of the method in the embodiment of the present application are not repeated. As shown in fig. 8, the method provided in the embodiment of the present application includes:

step 908, step 909, and step 912. The description in step 908 and the description in step 101, the description in step 909 and the description in step 102 and the description in step 912 and the description in step 103 may specifically refer to the descriptions in the relevant places, and are not repeated here.

In an alternative implementation manner, the following steps may also be included in fig. 8:

other equipment (such as an application server or a platform) receives a service message transmitted by a communication device through a target network, wherein the target network is a network which meets service requirements corresponding to services in network states of various networks to be selected;

the other devices process the service messages.

In a possible implementation manner, if the reliability of the service corresponding to the service identifier is lower than the first threshold, the communication device using the target network to transmit the service message may be implemented by the following step 9131: the other device receiving the service message transmitted by the communication apparatus through the target network may be implemented by step 9141. The processing of the service message by the other device may be implemented via step 9151.

In another possible implementation manner, if the bandwidth of the service corresponding to the service identifier is higher than the third threshold, the communication device using the target network to transmit the service message may be implemented by the following steps 9132 and 9133: the other device receiving the service message transmitted by the communication apparatus through the target network may be implemented by step 9142. The processing of the traffic message by the other device may be implemented via step 9152.

In another possible implementation manner, for a service whose service identifier indicates that the reliability of the service is higher than the fourth threshold, the communication device using the target network to transmit the service message may be implemented by the following step 9134: the other device receiving the service message transmitted by the communication apparatus through the target network may be implemented by step 9143. The processing of the service message by the other device may be implemented via step 9153.

Step 9131 may refer to the description in step 4121, step 9141 may refer to the description in step 4131, and step 9151 may refer to the description in step 4141. Step 9132 may refer to step 4122, step 9133 may refer to step 4123, step 9142 may refer to step 4132, step 9152 may refer to the related descriptions in step 4142, step 9134 may refer to step 4124, step 9143 may refer to step 4133, and step 9153 may refer to the descriptions in step 4143, which are not described herein again. However, it should be noted that, in the uplink, the sender of the service message is a terminal, and the receiver of the service message may be other devices. Further, steps 9141, 9142, and 9143 synchronize steps 4131, 4132, and 4133 with the difference that steps 9141, 9142, and 9143 receive the service message by another device (e.g., an application server or platform or other terminal). Steps 9151, 9152, 9153 synchronize steps 4141, 4142, and 4143 differ in that the business messages are processed by other devices (e.g., application servers or platforms or other terminals) in steps 9151, 9152, 9153.

When implemented by other devices, the terminals in steps 4131, 4132 and 4133 may be replaced by other devices, and the detailed description thereof will not be repeated here.

For example, the other device may be the platform 40, or an application server or other terminal in communication with the terminal, and the communication means may be disposed on the terminal 10. In an alternative embodiment, the sender of the fruit service message is a terminal. As another embodiment of the present application, as shown in fig. 8, a method provided in this application embodiment further includes, before step 908:

step 907, the first application in the terminal sends a service message to the communication device. That is, step 908 can be implemented as follows: the communication device receives a service message sent by a first application. For example, the first application may be a QQ application in the terminal. In this case, the application server may be an application server corresponding to the QQ. Or the first application may be a vehicle-mounted application installed in the terminal, in which case the other device may be another terminal.

In an optional implementation manner, for uplink, before step 912, the method may further include: the communication device determines network states of networks corresponding to the multiple networks to be selected. Or the communication device acquires the processing capability of the RSU which is communicated with the terminal according to the position information of the terminal. In another possible embodiment, a communication device is deployed at a terminal, and with reference to fig. 8, as shown in fig. 8, the step of determining, by the communication device, network states of networks corresponding to multiple candidate networks in the embodiment of the present application may specifically be implemented in the following manner:

step 9101, the communication device sends a second request message to the terminal module according to the various networks to be selected, and the second request message is used for inquiring the network states of the various networks to be selected.

Step 9102, the communication device obtains network states of networks corresponding to the multiple candidate networks from the module.

Specifically, the signal strength and the network state are obtained between the module of the terminal and the access device corresponding to each of the one or more candidate networks accessed by the terminal through System information (SIB 2). The communication device selects an API (application programming interface) of a corresponding module to send a Network Status Request message to access equipment respectively corresponding to one or more networks to be selected, which are accessed by the terminal, according to the Network types of the one or more networks to be selected, which are currently accessed by the terminal, so as to acquire the Network states of the one or more networks to be selected, wherein the Network Status Request message comprises the information of the one or more networks to be selected and the StatusType. The information of one or more candidate networks is used for indicating the network state of which candidate network is acquired, and the StatusType indicates whether single Strength or Netwokconsignation or both single Strength and Netwokconsignation. The terminal module converts BarringFactor Information of SIB2 between the terminal module and at least one access device into Network Status Information:

[P00，P10]->Hight

[P10，P30]->Middle

[P30，P80]->Low

> P80 or above: normal mail

The module returns the converted NSI to the communication device through Network Status Response, and carries the parameter Network Status Information.

In a possible implementation manner, when the communication device is deployed on a terminal, as shown in fig. 8, the method in the embodiment of the present application further includes:

step 906, the RSU periodically sends the processing capability of the RSU to the terminal module, that is, the terminal module can periodically receive the processing capability of the RSU from the RSU.

It should be understood that the RSU may periodically transmit the processing capability of the RSU to the terminal module according to the preset period, that is, the terminal module may periodically receive the processing capability of the RSU from the RSU according to the preset period. The embodiment of the present application does not limit the preset period.

Illustratively, the module in the terminal may be a modem in the terminal.

Accordingly, as shown in fig. 8, the step communication device in the embodiment of the present application may specifically obtain, according to the location information of the terminal, the processing capability of the RSU communicating with the terminal by:

step 9111, the communication device sends a first request message to a module of the terminal. The first request message is for requesting processing capabilities of the RSU.

Step 9112, the communication device receives the processing capability of the RSU sent by the module.

Illustratively, the first request message may be an LwM2M message. For example, an Object may be newly added to the LwM2M message, or the following functions as shown in table 4 or table 5 may be implemented by extending a resource (resource) to an existing Object (Object).

TABLE 4

Resource definition:

TABLE 5

It should be noted that, as shown in fig. 8, the method provided in the embodiment of the present application further includes, before step 904: in steps 901 to 905, the detailed contents may refer to the descriptions in steps 401 to 405, but fig. 4 and 8 differ in that: in fig. 4, the terminal is registered to the platform or the network, and in fig. 8 and 8, since the communication device is deployed on the terminal, the module in the terminal is registered to the platform or the network.

The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is to be understood that each network element, such as a communication device, a terminal, etc., includes corresponding hardware structures and/or software modules for performing each function in order to realize the functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the communication device and the terminal may be exemplified according to the method described above to divide the functional units, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

The method of the embodiment of the present application is described above with reference to fig. 3 to 8, and a communication apparatus for performing the method provided by the embodiment of the present application is described below. Those skilled in the art can understand that the method and the apparatus can be combined and referred to each other, and a communication apparatus provided in the embodiments of the present application can perform the steps performed by the terminal or the communication apparatus in the above communication network determination method.

The following description will be given by taking the division of each function module corresponding to each function as an example:

in case of using an integrated unit, fig. 9 shows a communication apparatus according to the above embodiment, which may include: a processing unit 101, and a communication unit 102.

In one example, the communication device is a logic module within a terminal or platform. In this case, the communication unit 102 is configured to support the communication device to execute step 101 in the above embodiment. A processing unit 101 for enabling the communication device to perform step 102 and step 103 in the above embodiments.

As another example, the communication device is a logic module in the platform, and the communication unit 102 is further configured to support the communication device to perform steps 407 and 408 in the above embodiment. A processing unit 101 for enabling the communication device to perform step 411 in the above embodiments.

In an alternative implementation, the communication unit 102 is further configured to support the communication device to perform step 404, step 409, step 410, step 4121, step 4123, and step 4124 in the above embodiments.

The processing unit 101 is configured to support the communication device to perform steps 405 and 4122 in the above embodiments.

In yet another example, the communication device is a logic module in a terminal. In this case, the communication unit 102 is configured to support the communication apparatus to execute step 908 in the above embodiment. A processing unit 101, configured to support the communication device to execute step 909 and step 912 in the foregoing embodiments.

In a possible embodiment, the communication unit 102 is further configured to enable the communication apparatus to perform step 904, step 9101, step 9102, step 9111, step 9112, step 9131, step 9133, and step 9134 in the above embodiments. The processing unit 101 is further configured to support the communication apparatus to perform step 905 and step 9132 in the foregoing embodiments.

For another example, the communication apparatus is another device or a chip applied in another device, in which case, the communication unit 102 is configured to support the communication apparatus to execute the step 914 executed by the terminal in the above embodiment. A processing unit 101 for enabling the communication device to perform step 9151 as performed by the terminal in the above embodiments. E.g., step 9141, step 9142, step 9143. Step 9152, and step 9153.

As another example, the communication apparatus is a terminal or a chip applied in the terminal, in which case, the communication unit 102 is used for supporting the communication apparatus to execute the steps 4131, 4132, and 4133 executed by the terminal in the above-mentioned embodiment. A processing unit 101 for enabling the communication device to perform the steps 4142 and 4143 performed by the terminal in the above embodiments.

The communication device may further include a storage unit. The memory unit is to store computer program code, the computer program code comprising instructions. If the communication apparatus is a chip applied to a terminal or a chip applied to the other device, the storage unit may be a storage unit (e.g., a register, a buffer, etc.) inside the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) of the terminal or the other device located outside the chip.

Fig. 10 shows a schematic diagram of a possible logical structure of the communication apparatus according to the above-described embodiment, in the case of an integrated unit. The communication device includes: a processing module 112 and a communication module 113. The processing module 112 is used for controlling and managing the operation of the communication device, for example, the processing module 112 is used for executing steps of information/data processing in the communication device. The communication module 113 is used to support the steps of information/data transmission or reception in the communication device.

In a possible embodiment, the communication device may further comprise a storage module 111 for storing program codes and data available to the communication device.

As another example, the communication device is a logic module in the platform, the communication module 113, and is further configured to support the communication device to perform steps 407 and 408 in the foregoing embodiment. A processing module 112, configured to enable the communication device to perform step 411 in the foregoing embodiments.

In an alternative implementation, the communication module 113 is further configured to enable the communication device to perform the steps 404, 409, 410, 4121, 4123, and 4124 in the above embodiments.

The processing module 112 is used to support the communication device to execute the steps 405 and 4122 in the above embodiments.

In yet another example, the communication device is a logic module in a terminal. In this case, the communication module 113 is configured to enable the communication device to perform step 908 in the above embodiment. A processing module 112, configured to support the communication device to perform step 909 and step 912 in the foregoing embodiments.

In a possible embodiment, the communication module 113 is further configured to enable the communication apparatus to perform step 904, step 9101, step 9102, step 9111, step 9112, step 9131, step 9133, and step 9134 in the foregoing embodiments. The processing module 112 is further configured to enable the communication apparatus to perform step 905 and step 9132 in the foregoing embodiments.

For another example, the communication apparatus is another device or a chip applied in another device, in which case, the communication module 113 is used to support the communication apparatus to execute the step 914 executed by the terminal in the above embodiment. A processing module 112 for enabling the communication device to perform step 9151 as performed by the terminal in the above embodiments. E.g., step 9141, step 9142, step 9143. Step 9152, and step 9153.

As another example, the communication device is a terminal or a chip applied in the terminal, in which case, the communication module 113 is used to support the communication device to execute the steps 4131, 4132, and 4133 executed by the terminal in the above embodiments. A processing module 112, configured to enable the communication device to perform step 4141, step 4142 and step 4143 performed by the terminal in the above embodiments.

If the communication apparatus is a terminal, or a chip applied in a terminal, or the communication apparatus is another device or a chip applied in another device, the processing module 112 may be a processor or a controller, and may be, for example, a central processing unit, a general processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a digital signal processor and a microprocessor, or the like. The communication module 113 may be a transceiver, a transceiving circuit or a communication interface, etc. The storage module 111 may be a memory.

When the processing module 112 is the processor 41 or the processor 45, the communication module 113 is the communication interface 43 or the transceiver, and the storage module 111 is the memory 42, the hardware of the communication device may be the communication device shown in fig. 11. The communication device comprises a processor 41, a communication line 44 and at least one communication interface (which is only illustrated in fig. 11 by way of example as comprising a communication interface 43).

Optionally, the communication device may also include a memory 42.

Processor 41 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the teachings of the present disclosure.

The communication link 44 may include a path for transmitting information between the aforementioned components.

The communication interface 43 may be any device, such as a transceiver, for communicating with other devices or communication networks, such as ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc.

The memory 42 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be separate and coupled to the processor via a communication line 44. The memory may also be integral to the processor.

The memory 42 is used for storing computer-executable instructions for executing the present application, and is controlled by the processor 41 to execute. The processor 41 is configured to execute the computer-executable instructions stored in the memory 42, so as to implement the roaming data processing method provided by the following embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

In particular implementations, processor 41 may include one or more CPUs, such as CPU0 and CPU1 of FIG. 11, for example, as an embodiment.

In particular implementations, the communication device may include multiple processors, such as processor 41 and processor 45 in fig. 11, for example, as an embodiment. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

It will be appreciated that the communication interface 43 may be replaced by a transceiver if the communication device is a terminal.

Fig. 12 is a schematic structural diagram of a chip 150 according to an embodiment of the present disclosure. Chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.

Optionally, the chip 150 further includes a memory 1540, which may include both read-only memory and random access memory, and provides operating instructions and data to the processor 1510. A portion of memory 1540 may also include non-volatile random access memory (NVRAM).

In some embodiments, memory 1540 stores elements, execution modules, or data structures, or a subset thereof, or an expanded set thereof.

In the embodiment of the present application, by calling an operation instruction stored in the memory 1540 (the operation instruction may be stored in an operating system), a corresponding operation is performed.

The processor 1510 controls processing operations of the terminal or other devices, and the processor 1510 may also be referred to as a Central Processing Unit (CPU).

Memory 1540 can include both read-only memory and random-access memory, and provides instructions and data to processor 1510. A portion of memory 1540 may also include non-volatile random access memory (NVRAM). For example, in an application where memory 1540, communications interface 1530 and memory 1540 are coupled together by bus system 1520, where bus system 1520 may include a power bus, control bus, status signal bus, etc. in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 12 as bus system 1520.

The method disclosed in the embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510. The processor 1510 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1510. The processor 1510 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and performs the steps of the above method in combination with the hardware thereof.

In one possible implementation, communication interface 1530 is used to perform the steps of receiving and transmitting by a terminal, other devices (e.g., application server/platform) in the embodiments shown in fig. 3-8. The processor 1510 is configured to perform the steps of the processing of the terminal, other devices (e.g., application server/platform) in the embodiments shown in fig. 3-8.

The above communication unit may be an interface circuit or a communication interface of the apparatus for receiving signals from other apparatuses. For example, when the device is implemented in the form of a chip, the communication unit is an interface circuit or a communication interface for the chip to receive signals from or transmit signals to other chips or devices.

In the above embodiments, the instructions stored by the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be written in the memory in advance or may be downloaded in the form of software and installed in the memory.

The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, e.g., the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium may be any available medium that a computer can store or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

In one aspect, a computer-readable storage medium is provided, in which instructions are stored, and when executed, the instructions cause a communication device to perform steps 101, 102, and 103 in the embodiments.

In one aspect, a computer readable storage medium is provided, having stored therein instructions that, when executed, cause a communication apparatus to perform steps 407, 408, 411, 404, 409, 410, 4121, 4123, and 4124, 405, 4122 in an embodiment.

On the other hand, there is provided a computer-readable storage medium having stored therein instructions that, when executed, cause a communication apparatus applied in the terminal to perform step 908, step 909, and step 912, step 904, step 9101, step 9102, step 9111, step 9112, step 9131, step 9133, step 9134, step 905, and step 9132.

In still another aspect, a computer-readable storage medium is provided, in which instructions are stored, and when executed, cause other devices or chips applied in other devices to perform step 914 and step 9151 in the embodiment. E.g., step 9141, step 9142, step 9143. Step 9152, and step 9153.

The aforementioned readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

In one aspect, a computer program product is provided comprising instructions stored therein, which when executed, cause a communication device to perform steps 407, 408, 411, 404, 409, 410, 4121, 4123, and 4124, 405, 4122 in an embodiment.

On the other hand, there is provided a computer program product including instructions stored therein, which when executed, cause a communication apparatus applied in the terminal to perform step 908, step 909, and step 912, step 904, step 9101, step 9102, step 9111, step 9112, step 9131, step 9133, step 9134, step 905, and step 9132.

In yet another aspect, a computer program product is provided that includes instructions stored thereon that, when executed, result in step 914 and step 9151. E.g., step 9141, step 9142, step 9143. Step 9152, and step 9153.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include such modifications and variations.

Claims

1. A method for communication network determination, comprising:

a communication device receives a service message, wherein the service message is a service message for a terminal to communicate with other equipment through the communication device, the service message comprises a service identifier and a first indication, and the first indication is used for indicating a target network for planning transmission of the service message by the communication device;

the communication device determines various networks to be selected according to the identifier of the terminal and the service identifier; the network to be selected belongs to a network corresponding to a network type supported by the terminal and a network corresponding to a network type configured for the service by the communication device;

the communication device determines a target network meeting the service requirement corresponding to the service according to the network states of various networks to be selected, wherein the target network is used for transmitting the service message;

when the network with the network type of PC5 is included in the candidate network, the method further includes:

the communication device acquires the processing capacity of a Road Side Unit (RSU) which is communicated with the terminal according to the position information of the terminal;

the communication device determines a target network meeting the service requirement corresponding to the service according to the network states of various networks to be selected, and the method comprises the following steps:

and the communication device determines a target network for transmitting the service message according to the network states of the various networks to be selected and the processing capacity of the RSU.

2. The method of claim 1, further comprising: the communication device acquires the network state of the network to be selected, and the network state is used for reflecting the congestion level of the network to be selected.

3. The method of claim 1, further comprising:

the communication device receives a service configuration from an application server, wherein the service configuration comprises any one or more of the following information of a service corresponding to the service identification: a service identifier, a service requirement, or a transmission path direction;

and the communication device configures the network type meeting the service requirement for the service according to the service configuration.

4. The method of claim 1, wherein reliability of the service corresponding to the service identifier is lower than a first threshold, and wherein the target network is a network corresponding to the RSU.

5. The method according to claim 4, wherein the delay of the service corresponding to the service identifier is lower than a second threshold, and the target network is a network whose network status satisfies the service requirement among the plurality of candidate networks or a network corresponding to the RSU.

6. The method according to claim 5, wherein the bandwidth of the service corresponding to the service identifier is higher than a third threshold, or the reliability of the service corresponding to the service identifier is higher than a fourth threshold, and the target network is a network whose network status satisfies the service requirement corresponding to the service identifier among the multiple candidate networks, and a network corresponding to the RSU.

7. The method of claim 6, wherein the bandwidth of the service corresponding to the service identifier is higher than a third threshold, and wherein the method further comprises:

the communication device generates one or more message packets of the service message according to the service message, wherein each message packet of the one or more message packets comprises a second indication which is used for indicating the sequence of the message packets;

and the communication device transmits the one or more message packets to the terminal or the other equipment by adopting a network with a network state meeting the service requirement corresponding to the service identifier in the various networks to be selected and a network corresponding to the RSU.

8. The method of claim 6, wherein the reliability of the service corresponding to the service identifier is higher than a fourth threshold, and wherein the method further comprises:

the communication device executes copy operation on the service message to obtain a copy service message;

and the communication device adopts a network with a network state meeting the service requirement corresponding to the service identifier in the various networks to be selected to transmit the service message, and adopts a network corresponding to the RSU to transmit the duplicated service message, wherein the duplicated service message and the service message also carry time information.

9. The method according to claim 8, wherein the communication device is deployed in the terminal, and the communication device obtains the processing capability of a Road Side Unit (RSU) communicating with the terminal according to the position information of the terminal, and comprises:

the communication device sends a first request message to a module of the terminal, wherein the first request message is used for requesting the processing capacity of the RSU;

the communication device receives processing capabilities of the RSU from the module.

10. The method according to claim 9, wherein the communication device is deployed on a platform for providing services for the terminal, and the communication device obtains processing capability of a Road Side Unit (RSU) communicating with the terminal according to the location information of the terminal, and comprises:

the communication device obtains the processing capability of the RSU from the RSU.

11. The method according to claim 10, wherein the communication device is deployed on a platform that provides services for the terminal, and the obtaining, by the communication device, the network status of the candidate network includes:

and the communication device acquires the network state of the network to be selected from the core network element in the network to be selected.

12. The method according to claim 9, wherein the communication device is deployed in the terminal, and the communication device acquires the network status of the candidate network, including:

the communication device sends a second request message to a module of the terminal according to the various networks to be selected, wherein the second request message is used for inquiring the network states of the various networks to be selected;

the communication device acquires the network states of the various networks to be selected from the module.

13. The method of claim 12, wherein the sender of the service message is the terminal, and the communication device is deployed on the terminal;

or the sender of the service message is the other equipment, and the communication device is deployed on a platform for providing service for the terminal.

14. The method according to any of claims 1-13, wherein the sender of the service message is the other device, the service message further comprising an identification of the terminal;

the sender of the service message is the terminal, and the communication device determines the identifier of the terminal through an interface or configuration inside the terminal.

15. A communications apparatus, comprising:

a communication unit, configured to receive a service message, where the service message is a service message for a terminal to communicate with other devices through the communication device, and the service message includes a service identifier and a first indication, and the first indication is used to indicate a target network for the communication device to plan transmission of the service message;

the processing unit is used for determining various networks to be selected according to the identifier of the terminal and the service identifier; the network to be selected belongs to a network corresponding to a network type supported by the terminal and a network corresponding to a network type configured for the service by the communication device;

the processing unit is further configured to determine, according to network states of multiple networks to be selected, a target network that meets a service requirement corresponding to the service, where the target network is used to transmit the service message;

when the network to be selected includes a network with a network type of PC5, the communication unit is further configured to obtain, according to the location information of the terminal, a processing capability of a Road Side Unit (RSU) in communication with the terminal;

the processing unit is specifically configured to determine a target network for transmitting the service message according to the network states of the multiple candidate networks and the processing capability of the RSU.

16. The apparatus of claim 15, wherein the communication unit is further configured to obtain a network status of the candidate network, and the network status is used to reflect a congestion level of the candidate network.

17. The apparatus according to claim 15, wherein the communication unit is further configured to receive a service configuration from an application server, where the service configuration includes any one or more of the following information of a service corresponding to the service identifier: a service identifier, a service requirement, or a transmission path direction;

and the processing unit is further configured to configure, according to the service configuration, a network type meeting the service requirement for the service.

18. The apparatus of claim 15, wherein reliability of the service corresponding to the service identifier is lower than a first threshold, and wherein the target network is a network corresponding to the RSU.

19. The apparatus according to claim 15, wherein the delay of the service corresponding to the service identifier is lower than a second threshold, and the target network is a network whose network status satisfies the service requirement among the multiple candidate networks or a network corresponding to the RSU.

20. The apparatus according to claim 15, wherein the bandwidth of the service corresponding to the service identifier is higher than a third threshold, or the reliability of the service corresponding to the service identifier is higher than a fourth threshold, and the target network is a network whose network status satisfies the service requirement corresponding to the service identifier among the multiple candidate networks, and a network corresponding to the RSU.

21. The apparatus of claim 20, wherein the bandwidth of the service corresponding to the service identifier is higher than a third threshold, and wherein the processing unit is further configured to generate one or more message packets of the service message according to the service message, where each message packet of the one or more message packets includes a second indication, and the second indication is used to indicate an order of the message packets;

the communication unit is further configured to transmit the one or more message packets to the terminal or the other device through a network in which a network state in the multiple networks to be selected meets a service requirement corresponding to a service identifier and a network corresponding to the RSU.

22. The apparatus of claim 20, wherein the reliability of the service corresponding to the service identifier is higher than a fourth threshold,

the processing unit is further configured to perform a copy operation on the service message to obtain a copy service message;

the communication unit is further configured to transmit the service message by using a network whose network state satisfies a service requirement corresponding to a service identifier among the multiple networks to be selected, and transmit the duplicated service message by using a network corresponding to the RSU, where the duplicated service message and the service message also carry time information.

23. The apparatus according to claim 15, wherein the communication apparatus is deployed in the terminal, and the communication unit is further configured to send a first request message to a module of the terminal, where the first request message is used to request the processing capability of the RSU;

the communication unit is further specifically configured to receive a processing capability of the RSU from the module.

24. The apparatus according to claim 23, wherein the communication apparatus is deployed on a platform for providing services to the terminal, and the communication unit is specifically configured to obtain the processing capability of the RSU from the RSU.

25. The apparatus according to claim 24, wherein the communication apparatus is deployed on a platform that provides a service for the terminal, and the communication unit is specifically configured to acquire the network status of the candidate network from a core network element in the candidate network.

26. The apparatus according to claim 23, wherein the communication apparatus is deployed in the terminal, and the communication unit is further configured to send a second request message to the module of the terminal according to the plurality of candidate networks, where the second request message is used to query network states of the plurality of candidate networks;

the communication unit is further configured to acquire the network states of the multiple networks to be selected from the module.

27. The apparatus of claim 26, wherein the sender of the service message is the terminal, and the communication apparatus is disposed on the terminal;

28. The apparatus according to any of claims 15-27, wherein the sender of the service message is the other device, and the service message further comprises an identification of the terminal;

29. A computer-readable storage medium having stored thereon instructions which, when executed, implement the communication network determination method of any one of claims 1 to 14.

30. A communication system, comprising: a communication device, a terminal and other equipment according to any of claims 15-28 communicating with the communication device.