WO2017024471A1

WO2017024471A1 - Data transmission method and ue

Info

Publication number: WO2017024471A1
Application number: PCT/CN2015/086517
Authority: WO
Inventors: 张宏平; 曾清海; 黄亚达
Original assignee: 华为技术有限公司
Priority date: 2015-08-10
Filing date: 2015-08-10
Publication date: 2017-02-16
Also published as: CN107211340A; CN107211340B

Abstract

Disclosed are a data transmission method and a UE. The method comprises: a first user equipment (UE) sending a request message, wherein the request message comprises: service information, wherein the service information is used to indicate a service in which the first UE makes a request for assistance; the first UE receiving a response message sent by at least one next-hop intermediate UE of the first UE, wherein the response message is sent when the next-hop intermediate UE determines that same can directly or indirectly assist the first UE in transmitting the service data to the target device; the first UE determining a transmission path of the service data according to the response message; and the first UE transmitting the service data via the transmission path. By means of the embodiments of the present invention, external communications of a UE can be realized when a network side device providing a service for the UE has a fault.

Description

Data transmission method and UE

Technical field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method and a UE.

Background technique

With the rapid development of mobile communication technologies, various types of mobile communication systems have emerged, such as the Global System of Mobile communication (GSM) network and the General Packet Radio Service (GPRS). Network, Wideband Code Division Multiple Access (WCDMA) network, CDMA-2000 network, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network, Long Term Evolution (LTE) system In addition to providing voice communication services, these mobile communication systems usually provide data communication services, and therefore, users can use the data communication services provided by these mobile communication systems to upload and download various data.

However, under the existing mobile communication technology architecture, the UE communicates externally through a network side device such as a base station. An obvious disadvantage of this architecture is that once the network side device supporting UE communication fails, the UE cannot be served, and the UE cannot communicate externally.

Summary of the invention

The embodiment of the present invention provides a data transmission method and a UE, which can implement external communication of the UE when the network side device that provides the service for the UE is faulty.

In order to solve the above technical problem, the embodiment of the present invention discloses the following technical solutions:

In a first aspect, a method of transmitting is provided, comprising:

The first user equipment UE sends a request message to the next hop UE of the first UE, where the request message is used to request the next hop UE to assist in transmitting the service data of the first UE to the target device, the request The message includes a type of service data that the first UE requests the next hop UE to assist transmission to the target device;

Receiving, by the first UE, a response message sent by the next hop UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the target Assume Transmitting the service data; the response message includes at least one path that the next hop UE connects to the target device;

Determining, by the first UE, a transmission path of the service data according to the response message;

The first UE transmits the service data to the target device by using the transmission path.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the determining, by the first UE, the transmission path of the service data according to the response message includes:

Determining, by the first UE, a candidate path that the first UE connects to the target device according to the response message;

The first UE selects at least one path from the candidate paths as the transmission path.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining, by the first UE, the candidate path that the first UE connects to the target device according to the response message includes:

The first UE adds a path between the first UE and the next hop UE on the at least one path of the next hop UE connected to the target device, to obtain the first UE connection. A candidate path of the target device.

With reference to the first possible implementation of the first aspect, and/or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first UE is in the candidate path Select at least one path as the transmission path, including:

Determining, by the first UE, a data convergence point of the service data;

The first UE selects at least one path that passes through the data convergence point from the candidate path as the transmission path.

With reference to the first possible implementation of the first aspect, and/or the second possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the first UE is in the candidate path Select at least one path as the transmission path, including:

Determining, by the first UE, a data convergence point and a maximum hop count of the service data;

The first UE selects, as the transmission path, at least one path that passes through the data convergence point and has a hop count not greater than the maximum hop count from the candidate paths.

Combining the first aspect, and/or the first possible implementation of the first aspect, and/or the second possible implementation of the first aspect, and/or the third possible implementation of the first aspect, and/or A fourth possible implementation manner of the first aspect, in the fifth possible implementation manner of the first aspect, the type of the service data includes: a voice call, an access to the Internet, or a local service.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, when the type of the service data is a voice call, the request message includes: a public land mobile network identifier PLMN ID And indicating that the candidate path needs to meet an operator network that accesses the PLMN ID indication.

In a second aspect, an embodiment of the present invention provides a transmission method, including:

The intermediate UE receives a request message, where the request message is used to request the intermediate UE to assist in transmitting the service data of the first UE to the target device, where the request message includes the first UE requesting the intermediate UE to transmit to the The type of business data of the target device;

The intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the previous hop UE of the intermediate UE, where the response message is used to send The first UE indicates that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, and the response message includes that the intermediate UE connects to at least one of the target devices. path.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes:

When the intermediate UE determines that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, send the request message to the next hop UE of the intermediate UE;

The intermediate UE receives a response message sent by the next hop UE of the intermediate UE, and adds a path between the intermediate UE and the next hop UE to the response message, where the response message is used to The first UE indicates that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes that the next hop UE is connected to the target device. At least one path;

The intermediate UE sends the response message to a previous hop UE of the intermediate UE.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the method further includes:

The intermediate UE receives a response message sent by the next hop UE of the intermediate UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the location Transmitting, by the target device, the service data, where the response message includes at least one path that the next hop UE connects to the target device;

Determining, by the intermediate UE, a candidate path of the intermediate UE connected to the target device according to the response message;

The intermediate UE selects at least one path from the candidate path, and sends a response message to the uplink hop UE, where the response message includes at least one path selected by the intermediate UE.

With reference to the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the determining, by the intermediate UE, the candidate path of the intermediate UE to the target device according to the response message, includes:

And the intermediate UE adds a path between the intermediate UE and the next hop UE on each path of the next hop UE connected to the target device according to the received response message, to obtain the The intermediate UE connects to the candidate path of the target device.

With reference to the second aspect, and/or the first possible implementation of the second aspect, and/or the second possible implementation of the second aspect, and/or the third possible implementation of the second aspect, in the second In a fourth possible implementation manner, the request message includes: data convergence point information of the service data, where the intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the information to the target device. Business data, including:

The intermediate UE determines that the intermediate UE can send the service data of the first UE to a data convergence point indicated by the data convergence point information.

With reference to the second aspect, and/or the first possible implementation of the second aspect, and/or the second possible implementation of the second aspect, and/or the third possible implementation of the second aspect, and/or A fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, when the request-assisted service is a voice call, the request message further includes: a public land mobile network identifier PLMN ID; The intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, including:

The intermediate UE determines that the intermediate UE can assist the first UE to transmit the service data to the target device by accessing an operator network indicated by the PLMN ID.

With reference to the second aspect, and/or the first possible implementation of the second aspect, and/or the second possible implementation of the second aspect, and/or the third possible implementation of the second aspect, and/or A fourth possible implementation manner of the second aspect, and/or a fifth possible implementation manner of the second aspect, in the sixth possible implementation manner of the second aspect, the intermediate UE determines that the intermediate UE can directly assist When the first UE transmits the service data to the target device, the method further includes:

Establishing an auxiliary connection between the intermediate UE and the network side device accessed by the intermediate UE;

The intermediate UE receives service data of the first UE;

Transmitting, by the intermediate UE, service data of the first UE to the network on the auxiliary connection Side equipment.

With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the establishing an auxiliary connection between the intermediate UE and the network side device that is accessed by the intermediate UE includes:

The intermediate UE sends the auxiliary indication information to the network side device, where the auxiliary indication information is used to indicate to the network side device that the intermediate UE is to perform auxiliary data transmission to the first UE;

The intermediate UE receives an auxiliary bearer setup message sent by the network side device, where the secondary bearer is used to transmit data of the first UE;

The intermediate UE sends an auxiliary bearer setup complete message to the network side device.

With reference to the second aspect, and/or the first possible implementation of the second aspect, and/or the second possible implementation of the second aspect, and/or the third possible implementation of the second aspect, and/or a fourth possible implementation of the second aspect, and/or a fifth possible implementation of the second aspect, and/or a sixth possible implementation of the second aspect, and/or a seventh possible aspect of the second aspect The implementation manner is the eighth possible implementation manner of the second aspect, the type of the service data includes: a voice call, an access to the Internet, or a local service.

In a third aspect, an embodiment of the present invention provides a UE, including:

a sending unit, configured to send a request message, where the request message is used to request the next hop UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the next a type of service data that the UE assists in transmitting to the target device;

a receiving unit, configured to receive a response message sent by the next hop UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the target The device transmits the service data; the response message includes at least one path that the next hop UE connects to the target device;

a determining unit, configured to determine a transmission path of the service data according to the response message received by the receiving unit;

And a transmitting unit, configured to transmit the service data to the target device by using the transmission path determined by the determining unit.

In conjunction with the third aspect, in a first possible implementation manner of the third aspect, the determining unit is specifically configured to:

Determining, according to the response message, a candidate path that the first UE connects to the target device;

At least one path is selected from the candidate paths as the transmission path.

In combination with the first possible implementation of the third aspect, the second possible implementation of the third aspect The determining unit is specifically configured to:

Adding a path between the first UE and the next hop UE on the at least one path of the next hop UE connected to the target device, to obtain that the first UE is connected to the target device. Candidate path.

With reference to the first possible implementation manner of the third aspect, and/or the second possible implementation manner of the third aspect, in the third possible implementation manner of the third aspect, the determining unit is specifically configured to:

Determining a data convergence point of the business data;

Selecting at least one path passing through the data convergence point from the candidate paths as the transmission path.

With reference to the first possible implementation manner of the third aspect, and/or the second possible implementation manner of the third aspect, in the fourth possible implementation manner of the third aspect, the determining unit is specifically configured to:

Determining a data convergence point and a maximum hop count of the service data;

Selecting, as the transmission path, at least one path that passes through the data convergence point and has a hop count not greater than the maximum hop count from the candidate paths.

Combining the third aspect, and/or the first possible implementation of the third aspect, and/or the second possible implementation of the third aspect, and/or the third possible implementation of the third aspect, and/or A fourth possible implementation manner of the third aspect, in the fifth possible implementation manner of the third aspect, the type of the service data includes: a voice call, an access to the Internet, or a local service.

With reference to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, when the type of the service data is a voice call, the request message includes: a public land mobile network identifier PLMN ID And indicating that the candidate path needs to meet an operator network that accesses the PLMN ID indication.

In a fourth aspect, an embodiment of the present invention provides a UE, including:

a receiving unit, configured to receive a request message, where the request message is used to request the intermediate UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the intermediate UE to assist The type of business data transmitted to the target device;

a determining unit, configured to determine whether the intermediate UE can directly assist the first UE to transmit the service data to the target device;

a sending unit, configured to determine, by the determining unit, that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and send a response message to a previous hop UE of the intermediate UE, where The response message is used to indicate to the first UE that the next hop UE can be directly or indirectly assisted Assisting the first UE to transmit the service data to the target device, where the response message includes at least one path that the intermediate UE connects to the target device.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the sending unit is further configured to: when determining that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, Sending the request message to a next hop UE of the intermediate UE;

The receiving unit is further configured to: receive a response message sent by the next hop UE of the intermediate UE;

And an adding unit, configured to add a path between the intermediate UE and the next hop UE to the response message, where the response message is used to indicate the next hop to the first UE The UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes at least one path that the next hop UE connects to the target device;

The sending unit is further configured to: send, by the intermediate UE, the response message to a previous hop UE of the intermediate UE.

With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, the sending unit is further configured to: when determining that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, Sending the request message to a next hop UE of the intermediate UE;

The receiving unit is further configured to: receive a response message sent by the next hop intermediate UE of the intermediate UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the Transmitting, by the first UE, the service data to the target device, where the response message includes at least one path that the next hop UE connects to the target device;

Also includes:

a path determining unit, configured to determine, according to the response message, a candidate path that the intermediate UE connects to the target device;

a selecting unit: configured to select at least one path from the candidate paths;

The sending unit is further configured to: send a response message to the uplink hop UE, where the sent response message includes at least one path selected by the intermediate UE.

With reference to the second possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the determining unit is specifically configured to:

Adding, according to the received response message, a path between the intermediate UE and the next hop UE on each path of the next hop UE connected to the target device, to obtain the intermediate UE connection target The candidate path of the device.

In conjunction with the fourth aspect, and/or the first possible implementation of the fourth aspect, and/or the fourth aspect of the second aspect A possible implementation manner, and/or a third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the request message includes: data convergence point information of the service data; The determining unit is specifically used for:

Determining that the intermediate UE can send the service data of the first UE to a data convergence point indicated by the data convergence point information.

With reference to the fourth aspect, and/or the first possible implementation of the fourth aspect, and/or the second possible implementation of the fourth aspect, and/or the third possible implementation of the fourth aspect, and/or A fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, when the request-assisted service is a voice call, the request message further includes: a public land mobile network identifier PLMN ID; The determining unit is specifically configured to:

Determining that the intermediate UE can assist the first UE to transmit the service data to the target device by accessing an operator network indicated by the PLMN ID.

With reference to the fourth aspect, and/or the first possible implementation of the fourth aspect, and/or the second possible implementation of the fourth aspect, and/or the third possible implementation of the fourth aspect, and/or The fourth possible implementation manner of the fourth aspect, and/or the fifth possible implementation manner of the fourth aspect, in the sixth possible implementation manner of the fourth aspect, the determining unit determines that the intermediate UE can directly assist When the service data is transmitted to the target device, the intermediate UE further includes:

An establishing unit, configured to establish an auxiliary connection with the network side device accessed by the intermediate UE;

a service data receiving unit, configured to receive service data of the first UE;

And a service data sending unit, configured to send the service data of the first UE received by the service data receiving unit to the network side device on the auxiliary connection.

With reference to the sixth possible implementation manner of the fourth aspect, in the seventh possible implementation manner of the fourth aspect, the establishing unit is specifically configured to:

Sending the auxiliary indication information to the network side device, where the auxiliary indication information is used to indicate to the network side device that the intermediate UE is to perform auxiliary data transmission to the first UE;

Receiving a secondary bearer setup message sent by the network side device, where the secondary bearer is used to transmit data of the first UE;

Sending a secondary bearer setup complete message to the network side device.

With reference to the fourth aspect, and/or the first possible implementation of the fourth aspect, and/or the second possible implementation of the fourth aspect, and/or the third possible implementation of the fourth aspect, and/or A fourth possible implementation of the fourth aspect, and/or a fifth possible implementation of the fourth aspect, and/or a fourth aspect sixth A possible implementation manner, and/or a seventh possible implementation manner of the fourth aspect, in the eighth possible implementation manner of the fourth aspect, the type of the service data includes: a voice call, an access to the Internet, or a local service .

In the embodiment of the present invention, the first UE sends a request message to the next hop UE of the first UE, where the request message is used to request the next hop UE to assist in transmitting the service data of the first UE to the target device. The request message includes a type of service data that the first UE requests the next hop UE to transmit to the target device, and the first UE receives a response message sent by the next hop UE, And the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes the next hop UE connection At least one path of the target device, the first UE determines a transmission path of the service data according to the response message, and transmits the service data to the target device by using the transmission path, thereby implementing the first UE. External communication.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, for those skilled in the art, no creative labor is required. Further drawings can also be obtained from these drawings.

FIG. 1 is a structural diagram of an application scenario according to an embodiment of the present invention;

2 is a flowchart of an embodiment of a data transmission method according to an embodiment of the present invention;

3 is a flowchart of another embodiment of a data transmission method according to an embodiment of the present invention;

4A is a structural diagram of an example of an application scenario according to an embodiment of the present invention;

4B is a flowchart of another embodiment of a data transmission method according to an embodiment of the present invention;

FIG. 5 is a flowchart of another embodiment of a data transmission method according to an embodiment of the present invention;

6 is a flowchart of communication between an intermediate UE and a network side device in the last hop according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a UE according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another UE according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of another UE according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another UE according to an embodiment of the present invention.

detailed description

In order to enable a person skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to enable the present invention The above-mentioned objects, features and advantages of the embodiments of the present invention will be more clearly understood. The technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

In the embodiment of the present invention, the UE is used as an integrated personal communication center, and can access the network side device, communicate with the outside world through the network side device, or directly communicate with other UEs without using the network side device. When a network-side device that is accessed by a UE is faulty, the UE can finally connect with other network-side devices through communication between the UEs, thereby implementing external communication.

The application scenario of the embodiment of the present invention is illustrated by using FIG. 1 below. As shown in FIG. 1 , the method includes: a first UE, at least one intermediate UE, and at least two network side devices, where the network side device accessed by the first UE is faulty, and each intermediate UE accesses one network side device, and The network side device communicates with the outside world. In FIG. 1, the first UE accesses the network side device 1, and the network side device 1 is faulty, so that the first UE cannot communicate with the outside world; the intermediate UE1 and the intermediate UE2 are respectively connected to the network side device 2 and the network side device 3. Communication can be performed between network side devices, network side devices, and other network side devices.

In the embodiment of the present invention, the first UE and the intermediate UE are both UEs, and there is no substantial difference. In the embodiment of the present invention, a UE that cannot communicate with the outside world and needs assistance is referred to as a first UE, and other participating users are The UE that implements data transmission of the first UE is referred to as an intermediate UE.

Hereinafter, the data transmission method of the embodiment of the present invention will be described in the application scenario shown in FIG.

FIG. 2 is a flowchart of an embodiment of a data transmission method according to the present invention. The embodiment is described from the first UE side, and includes:

Step 201: The first UE sends a request message to the next hop UE of the first UE, where the request message is used to request the next hop UE to assist in transmitting the service data of the first UE to the target device. The request message includes a type of service data that the first UE requests the next hop UE to assist transmission to the target device.

The upper and lower of the next hop UE and the last hop UE in the embodiment of the present invention are for the direction in which the first UE transmits the service data to the target device. For example, if the first UE is connected to the target device by using UE1, the next hop node of the first UE is UE1, the next hop node of UE1 is the target device, and the last hop node of UE1 is the first UE, and the last hop of the target device. The node is UE1.

Step 202: The first UE receives a response message sent by the next hop UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to The target device transmits the service data; the response message includes at least one path that the next hop UE connects to the target device;

The embodiment of the present invention describes that a certain UE can directly assist the first UE to the target device. The transmission of the service data means that the certain UE can directly transmit the service data of the first UE to the target device without forwarding through other subsequent hop nodes;

The embodiment of the present invention describes that a certain UE can indirectly assist the first UE to transmit the service data to the target device, which means that a certain hop node subsequent to the certain UE can directly assist the first UE to the The target device transmits the service data, and the certain UE is only a node that forwards data to the certain hop node.

Step 203: The first UE determines a transmission path of the service data according to the response message.

Step 204: The first UE transmits the service data to the target device by using the transmission path.

Optionally, the first UE determines, according to the response message, a transmission path of the service data, including:

The target device in the embodiment of the present invention is a location where the first UE wants to send a service, and the target device may be a network side device, or may be a UE or the like.

Optionally, the determining, by the first UE, the candidate path that the first UE connects to the target device according to the response message includes:

Optionally, the first UE selects at least one path from the candidate path as the transmission path, and includes:

Determining, by the first UE, a data convergence point of the service data;

The data aggregation point refers to a network node that arrives through data sent by multiple auxiliary paths, and the node performs functions such as sorting data. It should be noted that the reason why the data convergence point is needed is because the first UE may seek multiple transmission paths, and the data transmitted on the multiple transmission paths needs to reach the data convergence point for data sorting, decryption, etc. The data aggregation point may be a certain base station, or a service gateway.

In this embodiment, the first UE sends a request message, receives a response message sent by the next hop UE, determines a transmission path of the service data according to the response message, and transmits service data to the target device by using the transmission path, thereby implementing The external communication of the first UE.

FIG. 3 is a flowchart of another embodiment of a data transmission method according to the present invention. The embodiment is described from the intermediate UE side, and includes:

Step 301: The intermediate UE receives a request message, where the request message is used to request the intermediate UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the intermediate UE to assist. The type of business data transmitted to the target device;

Step 302: The intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the previous hop UE of the intermediate UE, where the response message is used. Instructing the first UE that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes that the intermediate UE connects to the target device at least A path.

Optionally, the method further includes:

Optionally, it also includes:

Optionally, the intermediate UE determines, according to the response message, that the intermediate UE connects to a candidate path of the target device, including:

Optionally, the request message includes: data convergence point information of the service data; the intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, including:

Optionally, when the request-assisted service is a voice call, the request message further includes: a PLMN ID, where the intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the to the target device. Business data, including:

The PLMN ID is generally the network identifier of the operator that the first UE subscribes to. The reason why the request message contains the PLMN ID is that the first UE can successfully authenticate through the network after being assisted by the intermediate UE to access the network. Etc., to reduce the occurrence of failures in a large amount, for example, the first UE is a user of China Mobile. When seeking assistance, it is necessary to indicate that the intermediate UE needs to access the network of China Mobile, otherwise the intermediate UE accesses the network of China Unicom. , because the China Unicom network will perform subsequent authentication and other operations on the first UE will fail, resulting in the failure of the entire auxiliary process.

Optionally, when the intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, the method further includes:

The intermediate UE receives service data of the first UE;

The intermediate UE sends the service data of the first UE to the network side device on the auxiliary connection.

Optionally, establishing an auxiliary connection between the intermediate UE and the network side device that is accessed by the intermediate UE, including:

Optionally, the type of the service data includes: a voice call, an access to the Internet, or a local service.

Optionally, the auxiliary bearer is only used to transmit data of the first UE, and is not used to transmit data of the intermediate UE. The advantage of the network is that the network side can clearly distinguish that the received data is the first UE. The data is also the data of the intermediate UE, thereby facilitating the processing of billing, quality of service, and the like.

In this embodiment, the intermediate UE receives the request message, and the intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the previous hop UE of the intermediate UE, thereby implementing the external message of the first UE. Communication.

FIG. 4A is a schematic diagram of an application scenario according to an embodiment of the present invention. The application scenario includes: a first UE; a next hop UE of the first UE is referred to as a first intermediate UE, and the first intermediate UE may be one or Multiple UEs, 2 in the figure; the next hop UE of the first intermediate UE is referred to as a second intermediate UE, and the second intermediate UE may also be one or more, 2 in the figure; the first intermediate UE and The second intermediate UE accesses the same or different network side devices respectively. The first intermediate UE and the second intermediate UE are both intermediate UEs, and the first and second are only different intermediate UEs, and have no other practical significance.

FIG. 4B is a flowchart of another embodiment of a data transmission method according to the present invention. The embodiment describes an interaction process between a first UE and an intermediate UE, including:

Step 401: The first UE sends a request message to the first intermediate UE, where the request message includes a type of service data that the first UE requests the first intermediate UE to transmit to the target device.

The types of the service data may include: a voice call, an access to the Internet, a local service, and the like. Local services can be local calls or local data transmissions.

The first UE may send a request message through a wireless port. The communication between the first UE and each of the first intermediate UEs may be performed through a dedicated channel, or may be performed by means of broadcast, etc., which is not limited by the embodiment of the present invention.

The request message may further include: a first UE identifier. Generally, if the first UE and the other intermediate UEs communicate with each other through the dedicated channel, the intermediate UE receives the request message sent by the first UE, and may determine that the first request is sent by the first UE, and the data request message may not include the first UE logo, If the first UE communicates with other intermediate UEs through a dedicated channel, for example, by means of a broadcast, the request message preferably carries the first UE identifier.

The request message may further include: a target device identifier. If the UE wants to perform data transmission with other UEs in the local network, the target device identifier may be included in the request message.

The first UE identity and the target device identity may be set autonomously in an actual application. For example, if the service required for assistance by the first UE is a voice call, the first UE identity and the target device identity may be a random number, or a network identity of the UE, such as a public land mobile network identity (PLMN ID). If the service to be assisted by the first UE is a local service such as a local call or a local data transmission, the first UE identifier may be an identifier of the first UE under the local network, and the target device identifier may be an identifier of the target device under the local network. .

The request message may further include: a maximum hop count, so as to prevent the transmission path of the auxiliary first UE transmitting the service data to be too long, and the path finding overhead is too large.

The request message may further include: information about the data aggregation point. In general, if the first UE has previously established one or more transmission paths for transmitting data through the assistance of other intermediate UEs, the first UE also needs to obtain a new transmission path transmission data by performing the method described in the embodiment of the present invention. The first UE may hope that its own data is aggregated in a certain UE for unified processing, such as secure decryption, in-order delivery, etc., in which case, the request message may carry information of the data aggregation point, indicating the transmission path established by other UEs. The UE that must pass through, the UE may be a UE, or may be a network side device.

Step 402: The first intermediate UE determines whether the first intermediate UE can directly assist the first UE to transmit the service data to the target device, and if yes, step 403 is performed, and if no, step 404 is performed.

The first intermediate UE may determine whether the first intermediate UE belongs to the target device to perform the auxiliary service according to whether the first intermediate UE can assist the first UE to transmit the service data to the target device. Whether the intermediate UE supports the service, the data aggregation point, and the like to perform the determination, and the specific implementation may be set autonomously in the actual application, which is not limited in the embodiment of the present invention.

For example, if the request message includes the data convergence point information of the service, the first intermediate UE determines whether the first intermediate UE can directly assist the first UE to transmit the service data to the target device, and may include:

The first intermediate UE determines that the first intermediate UE can send the service data of the first UE to the data convergence point indicated by the data convergence point information.

If the request-assisted service is a voice call, the request message includes a PLMN ID, and the first intermediate UE determines whether the first intermediate UE can directly assist the first UE to transmit the service data to the target device, which may include :

The first intermediate UE determines that the first intermediate UE can assist the first UE to transmit the service data to the target device by accessing an operator network indicated by the PLMN ID.

Step 403: The first intermediate UE sends a response message to the first UE, and step 409 is performed.

The response message includes at least one path that the intermediate UE connects to the target device.

For example, in the application scenario shown in FIG. 4A, if the target device is a network side device, the response message may include: a path from the first intermediate UE to the first network side device.

In this step, the path of the first intermediate UE to the first network side device may be defaulted.

Step 404: When the first intermediate UE determines that the maximum hop count in the request message is not less than 1, the second intermediate UE of the next hop sends the request message.

If the request message includes the maximum hop count, the first intermediate UE needs to reduce the maximum hop count in the request message by one when sending the request message.

The first intermediate UE determines that the maximum hop count in the request message is equal to 1, indicating that the maximum hop count has been reached, and the first intermediate UE may not forward the request message of the first UE. The hopping UE (the first UE in the embodiment of the present invention) sends an auxiliary failure response message, and may also perform no operation.

The first intermediate UE determines that the maximum hop count in the request message is not less than one. If the request message does not include the maximum hop count, the step is not performed, and the first intermediate UE directly sends a request to the next hop UE. The message is fine.

Step 405: The second intermediate UE determines whether the second intermediate UE can directly assist the first UE to transmit the service data to the target device. If yes, step 406 is performed, and if no, step 408 is performed.

For the implementation of this step, refer to step 402, which is not described here.

Step 406: The second intermediate UE sends a response message to the first intermediate UE of the first hop, and step 407 is performed.

For the implementation of this step, refer to step 403, which is not described here.

Step 407: The first intermediate UE receives the response message sent by the second intermediate UE, adds information about the path between the first intermediate UE and the second intermediate UE to the response message, and sends a response message to the first UE to execute Step 409.

Step 408: When the second intermediate UE determines that the maximum hop count in the received request message is not less than 1, the intermediate UE of the next hop sends the request message.

The second intermediate UE determines that the maximum hop count in the request message is equal to 1, indicating that the maximum hop count has been reached, and the second intermediate UE may not forward the request message of the first UE, and at this time, the second intermediate UE The auxiliary failure response message may be sent to the first hop UE (the first intermediate UE in the embodiment of the present invention), or no operation may be performed.

In the embodiment of the present invention, since the second intermediate UE does not have the intermediate UE of the next hop, the second intermediate UE continues to send the request message, and cannot receive the response message sent by the intermediate UE of the subsequent hop, and the branching process ends.

In a practical application, if the second intermediate UE subsequently has a multi-hop UE, the execution step of the intermediate UE of each hop may refer to step 405 to step 407 until the maximum hop count in the request message is 1, causing the branch process to end. Or the intermediate UE of the subsequent hop determines that the result is yes, and the intermediate UE of the next hop sends a response message. If the intermediate UE of the next hop determines that the result is yes, the intermediate UE of the next hop sends a response message. At this time, the intermediate UE of each hop including the first intermediate UE and the second intermediate UE will refer to step 407. And performing, by the first intermediate UE, a path between the intermediate UE of each hop and the intermediate UE of the next hop of the hop intermediate UE is added to the response message, and is forwarded to the intermediate UE of the hop of the intermediate UE. First UE. After that, step 409 is performed.

The foregoing steps 402 to 408 are processes for a certain first intermediate UE, and the process needs to be performed for each first intermediate UE that is the next hop UE of the first UE.

The second intermediate UE in the step 405 to the step 408 is the next hop UE of the one of the first intermediate UEs, and is the second intermediate UE in the next hop of the one of the first intermediate UEs.

Step 409: The first UE receives a response message sent by the first intermediate UE, and determines a transmission path of the service data according to the response message.

The determining, by the first UE, the transmission path of the service data according to the response message may include:

The first UE selects at least one path from the candidate paths as a transmission path.

The response message sent by the first UE is in two cases. The first type is the response message sent by the first intermediate UE in step 403, and the second type is sent by other intermediate UEs forwarded by the first intermediate UE in step 407. Response message.

For the first type of response message, the information of the path that may include the path of the first intermediate UE to the target device may also not include the information of the path of the first intermediate UE to the target device; for the second response message, the message includes The information of the path of the first intermediate UE connected to the target device. Based on this, the response message can be divided into two cases according to whether or not the path information is included, which are respectively described below:

If the path information is not included in the response message, the first UE determines the first according to the response message A candidate path for the UE to connect to the target device may include:

The first UE determines a path between the first UE and the first intermediate UE as a candidate path that the first UE connects to the target device.

If the response message includes: a path that the first intermediate UE connects to the target device; the determining, by the first UE, the candidate path of the first UE to the target device according to the response message, may include:

And the first UE adds a path between the first UE and the next hop intermediate UE on each path that the UE connects to the target device in the next hop intermediate according to the path information in the response message, to obtain the The first UE is connected to a candidate path of the target device.

If the path of the data aggregation point is included in the request message, the path recorded in the response message fed back by each intermediate UE is generally a path that satisfies the condition of the data convergence point, and the first UE may be from the candidate path. At least one path is selected as the transmission path randomly or according to a predetermined rule. However, if the information of the data aggregation point is not included in the request message, the path recorded in the response message fed back by each intermediate UE may include a path that does not satisfy the condition of passing the data convergence point. In this case, the first UE Selecting at least one path as the transmission path in the candidate path may include:

Determining, by the first UE, a data convergence point of the service;

If the information of the maximum hop count is included in the request message, the path recorded in the response message fed back by each intermediate UE is generally a path that satisfies the condition that is not greater than the maximum hop count, and the first UE may obtain the candidate from the candidate. At least one path is selected as a transmission path randomly or in accordance with a predetermined rule. However, if the information of the maximum hop count is not included in the request message, the path recorded in the response message fed back by each intermediate UE may include a path that does not satisfy the condition of the maximum hop count. At this time, the first UE is from the Selecting at least one path in the candidate path as the transmission path may include:

Determining, by the first UE, a maximum hop count of the service;

The first UE selects, as the transmission path, at least one path whose hop count is not greater than the maximum hop count from the candidate paths.

If the request message includes the information of the data convergence point and the maximum hop count, the path recorded in the response message fed back by each intermediate UE is generally a path that satisfies the condition of the data convergence point and the maximum hop count, and then the first The UE may select at least one path as a transmission path from the candidate paths randomly or according to a preset certain rule. However, if the request message does not include the data aggregation point and the maximum hop The information recorded in the response message fed back by each intermediate UE may include a path that does not satisfy the condition of the data convergence point and the maximum hop count. At this time, the first UE selects at least one of the candidate paths. The path as a transmission path can include:

Determining, by the first UE, a data convergence point and a maximum hop count of the service;

Step 410: The first UE transmits the service data to the target device by using the transmission path.

The first UE can only transmit the service data to the target device in the transmission path if the transmission path is one.

If the transmission path is more than one path, the first UE may allocate the service data to be transmitted for each transmission path according to a preset rule, and the specific rule may be set autonomously in an actual application. For example, a certain packet data may be sent from one of the transmission paths, and the next packet data may be sent from another transmission path; or, each packet of data may be transmitted on all transmission paths to improve the reliability of data transmission.

In this embodiment, the intermediate UE determines that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, and uses itself as a relay UE, and sends a request message to the next hop UE and forwards the next hop to the middle. The response message fed back by the UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the uplink hop UE, so that the response message is sent hop by hop to the first UE. And determining, by the first UE, a transmission path of the service according to the response message, and performing data transmission of the service by using the transmission path, thereby implementing external communication of the first UE.

FIG. 5 is a flowchart of another embodiment of a data transmission method according to the present invention. The embodiment describes an interaction process between a first UE, an intermediate UE, and a network side device, including:

Steps 501 to 504 can refer to steps 401 to 404, and details are not described herein.

Step 505: The second intermediate UE determines whether the second intermediate UE can directly assist the first UE to transmit the service data to the target device. If yes, step 506 is performed, and if no, step 507 is performed.

For the implementation of this step, reference may be made to step 502, which is not described here.

Step 506: The second intermediate UE sends a response message to the first intermediate UE of the next hop, and step 508 is performed.

For the implementation of this step, refer to step 503, which is not described here.

Step 507: The second intermediate UE determines that the maximum hop count in the received request message is not less than 1, The request message is sent to the intermediate UE of the next hop.

The second intermediate UE determines that the maximum hop count in the request message is equal to 1, indicating that the maximum hop count has been reached, and the second intermediate UE may not forward the request message of the first UE. The hopping UE (the first intermediate UE in the embodiment of the present invention) sends an auxiliary failure response message, and may also perform no operation.

In an actual application, if the second intermediate UE subsequently has a multi-hop intermediate UE, the execution step of the intermediate UE of each hop may refer to steps 505 to 508 until the maximum hop count in the request message is 1 to cause the branch process to end. Or, the intermediate UE judgment result of a subsequent hop is yes, and the intermediate UE of the upward hop sends a response message. If the intermediate UE of the next hop determines that the result is yes, the intermediate UE of the next hop sends a response message. At this time, the intermediate UE of each hop including the second intermediate UE refers to the first intermediate UE in step 508. Performing a step of determining, according to the response message, that the first intermediate UE is connected to the candidate path of the network side, selecting at least one path from the candidate path, and sending, by the upper hop intermediate UE, a response message carrying the path information of the at least one path, Until the first intermediate UE. After that, step 508 is performed.

Step 508: The first intermediate UE receives the response message sent by the second intermediate UE, determines, according to the response message, a candidate path that the first intermediate UE connects to the target device, and selects at least one path from the candidate path to the first UE. Sending a response message, the response message sent by the first intermediate UE includes path information for recording the selected at least one path.

The information of the path that the second intermediate UE connects to the target device is not included in the response message received by the first intermediate UE. The first intermediate UE determines, according to the response message, the candidate path of the first intermediate UE to connect to the target device, including :

The first intermediate UE determines a path between the first intermediate UE and the second intermediate UE as a candidate path of the intermediate UE connected to the target device.

Or the information of the path that the second intermediate UE connects to the target device is included in the response message that is received by the first intermediate UE. The first intermediate UE determines, according to the response message, that the first intermediate UE is connected to the candidate path of the network side, including:

The first intermediate UE adds a path between the first intermediate UE and the second intermediate UE on each path of the second intermediate UE connection network side, and obtains a candidate path that the first intermediate UE connects to the target device.

In this embodiment, the intermediate UE no longer feeds the candidate path of the intermediate UE to the target device to the first UE, but selects a partial candidate path to feed back the first UE, thereby increasing the flexibility of the intermediate UE to feed the candidate path, and The workload of the first UE processing the candidate path of the first UE connected to the target device is reduced.

Step 509: The first UE receives a response message sent by the first intermediate UE, and determines a transmission path of the service according to the response message.

For the implementation of this step, refer to step 409, which is not described here.

Step 510: The first UE transmits the service data to the target device by using the transmission path.

In this embodiment, the intermediate UE determines that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, and uses itself as a relay UE to send a request message to the next hop UE and forward the message. a response message of the next hop intermediate UE feedback, determining that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sending a response message to the uplink hop UE, thereby sending the response message hop by hop Up to the first UE, the first UE determines the transmission path of the service according to the response message, and transmits the service data to the target device by using the transmission path, thereby implementing external communication of the first UE.

In step 410 and step 510, when the first UE performs data transmission of the service through the transmission path, if the target device is the network side, and between the last hop intermediate UE in the transmission path and the network side device The communication process is as shown in FIG. 6, and may include:

Step 601: An intermediate connection is established between the intermediate UE and the network side device accessed by the intermediate UE.

The establishing the auxiliary connection may be implemented by establishing an auxiliary bearer. When the intermediate UE receives the service data of the first UE, if the intermediate UE is in the idle state, it will enter the RRC connected state, and then, establish an auxiliary connection.

The establishing an auxiliary connection between the intermediate UE and the network side device that is accessed by the intermediate UE may include:

The intermediate UE sends the auxiliary indication information to the network side device, where the auxiliary indication information is used to indicate to the network side device that the intermediate UE is to perform auxiliary data transmission to the first UE; optionally, the auxiliary indication information The method includes: a first UE identifier;

Optionally, the auxiliary bearer is preferably only used to transmit data of the first UE, and is not used to transmit data of the intermediate UE. The advantage of the network bearer is that the network side can clearly distinguish the received data from the first The data of one UE is also the data of the intermediate UE, thereby facilitating processing of charging, quality of service, and the like.

Step 602: The intermediate UE receives the service data of the first UE.

Step 603: The intermediate UE sends the service data of the first UE to the network side device on the auxiliary connection.

In this embodiment, the establishment of the secondary bearer between the last hop intermediate UE and the network side device, and the transmission of the service data of the first UE are implemented.

Corresponding to the above method, an embodiment of the present invention further provides a UE.

Referring to FIG. 7, the UE 700 includes: a sending unit 710, a receiving unit 720, a determining unit 730, and a transmitting unit 740;

The sending unit 710 is configured to send a request message, where the request message is used to request the next hop UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the The type of service data that the next hop UE assists in transmitting to the target device;

The receiving unit 720 is configured to receive a response message sent by the next hop UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the The target device transmits the service data; the response message includes at least one path that the next hop UE connects to the target device;

a determining unit 730, configured to determine, according to the response message received by the receiving unit, a transmission path of the service data;

The transmitting unit 740 is configured to transmit the service data to the target device by using the transmission path determined by the determining unit.

Optionally, the determining unit is specifically configured to:

Determining a data convergence point of the business data;

Optionally, the determining unit is specifically configured to:

Optionally, when the type of the service data is a voice call, the request message includes: a public land mobile network identifier PLMN ID, configured to indicate that the candidate path needs to meet an operator that accesses the PLMN ID indication. The internet.

The sending unit and the transmitting unit may be implemented by a transmitter, the receiving unit may be implemented by a receiver, and the determining unit may be implemented by a processor.

In this embodiment, the first UE sends a request message, receives a response message sent by the next hop intermediate UE of the first UE, determines a transmission path of the service according to the response message, and uses the transmission path to the The target device transmits the service data, thereby implementing external communication of the first UE.

Referring to FIG. 8, an embodiment of the present invention further provides a UE. The UE 800 includes: a receiving unit 810, a determining unit 820, and a sending unit 830;

The receiving unit 810 is configured to receive a request message, where the request message is used to request the intermediate UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the intermediate UE A type of service data that is transmitted to the target device;

a determining unit 820, configured to determine whether the intermediate UE can directly assist the first UE to transmit the service data to the target device;

The sending unit 830 is configured to: when the determining unit determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, send a response message to a previous hop UE of the intermediate UE, where The response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, and the response message includes the intermediate UE connection. At least one path of the target device.

Optionally, the sending unit is further configured to: when the intermediate UE is not able to directly assist the first UE to transmit the service data to the target device, send the request to a next hop UE of the intermediate UE. Message

Also includes:

Optionally, the determining unit is specifically configured to:

Optionally, the request message includes: data convergence point information of the service data; the determining unit is specifically configured to:

Optionally, when the request-assisted service is a voice call, the request message further includes: a public land mobile network identifier PLMN ID; the determining unit is specifically configured to:

Optionally, the determining unit determines that the intermediate UE can directly assist transmission to the target device. When the service data is described, the intermediate UE further includes:

Optionally, the establishing unit is specifically configured to:

Sending a secondary bearer setup complete message to the network side device.

The receiving unit may be implemented by a receiver, and the determining unit, the adding unit, the path determining unit, and the selecting unit may be implemented by a processor, and the sending unit may be implemented by a transmitter.

In this embodiment, the UE receives the request message, and the UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the next hop UE to hop the response message. The first UE is sent to the first UE, and the first UE determines the transmission path of the service according to the response message, and performs data transmission of the service data by using the transmission path, thereby implementing external communication of the first UE.

The embodiment of the present invention further provides a UE. Referring to FIG. 9, the UE 900 includes: a processor 910, a memory 920, a transceiver 930, and a bus 940.

The processor 910, the memory 920, and the transceiver 930 are connected to each other through a bus 940; the bus 940 may be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.

The memory 920 is configured to store a program. In particular, the program can include program code, the program code including computer operating instructions. Memory 920 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The transceiver 930 is used to connect other devices and communicate with other devices. The transceiver 930 is configured to send a request message to the next hop UE of the first UE, where the request message is used to request the next hop UE to assist the transmission. Transmitting the service data of the first UE to the target device, where the request message includes a type of service data that the first UE requests the next hop UE to transmit to the target device; and receiving the next hop UE And a response message, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device; the response message includes The next hop UE is connected to at least one path of the target device;

The processor 910 executes the program code, configured to determine a transmission path of the service data according to the response message;

The transceiver 930 is further configured to transmit the service data to the target device by using the transmission path.

Optionally, the processor 910 is specifically configured to:

Determining a data convergence point of the business data;

Optionally, the processor 910 is specifically configured to:

An embodiment of the present invention further provides a UE. Referring to FIG. 10, the UE 1000 includes: a processor 1010, and a memory 1020, a transceiver 1030 and a bus 1040;

The processor 1010, the memory 1020, and the transceiver 1030 are connected to each other through a bus 1040. The bus 1040 may be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.

The memory 1020 is configured to store a program. In particular, the program can include program code, the program code including computer operating instructions. The memory 1020 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.

The processor 1010 executes the program code, and is configured to determine that the intermediate UE can send service data of the first UE to a data convergence point indicated by the data convergence point information.

The transceiver 1030 is used to connect other devices and communicate with other devices. The transceiver 1030 is configured to: receive a request message, where the request message is used to request the intermediate UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the intermediate UE Supporting a type of service data transmitted to the target device; determining that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sending a response to a previous hop UE of the intermediate UE a message, the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes the middle The UE connects to at least one path of the target device.

Optionally, the transceiver 1030 is further configured to:

Determining that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, and send the request message to a next hop UE of the intermediate UE;

Receiving a response message sent by the next hop UE of the intermediate UE, adding a path between the intermediate UE and the next hop UE to the response message, where the response message is used to The UE instructs the next hop UE to directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes at least one path that the next hop UE connects to the target device;

Sending the response message to the last hop UE of the intermediate UE.

Optionally, the transceiver 1030 is further configured to: when the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, send the request message to a next hop UE of the intermediate UE. Receiving a response message sent by the next hop UE of the intermediate UE, the response message being used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the target device Transmitting the service data, where the response message includes at least one path that the next hop UE connects to the target device;

The processor 1010 is configured to: determine, according to the response message, that the intermediate UE connects to a candidate path of the target device, and select at least one path from the candidate path;

The transceiver 1030 is further configured to: send a response message to the uplink hop UE, where the sent response message includes at least one path selected by the intermediate UE.

Optionally, the processor 1010 is specifically configured to:

Optionally, the request message includes: data convergence point information of the service data; the processor 1010 is specifically configured to:

Optionally, when the request-assisted service is a voice call, the request message further includes: a public land mobile network identifier PLMN ID; the processor 1010 is specifically configured to:

Optionally, when the processor 1010 determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, the transceiver 1030 is further configured to: access the network with the intermediate UE. An auxiliary connection is established between the side devices; the service data of the first UE is received; and the service data of the first UE is sent to the network side device on the auxiliary connection.

Optionally, the transceiver 1030 is specifically configured to:

Sending a secondary bearer setup complete message to the network side device.

In this embodiment, the UE receives the request message, and the UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the next hop UE to hop the response message. Transmitting to the first UE, determining, by the first UE, a transmission path of the service according to the response message, and performing data transmission of the service data by using the transmission path, thereby implementing the External communication of a UE.

It will be apparent to those skilled in the art that the techniques in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM. , a disk, an optical disk, etc., including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.

The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

The embodiments of the invention described above are not intended to limit the scope of the invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

A transmission method, comprising:

The first user equipment UE sends a request message to the next hop UE of the first UE, where the request message is used to request the next hop UE to assist in transmitting the service data of the first UE to the target device, the request The message includes a type of service data that the first UE requests the next hop UE to assist transmission to the target device;

Receiving, by the first UE, a response message sent by the next hop UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the target The device transmits the service data; the response message includes at least one path that the next hop UE connects to the target device;

Determining, by the first UE, a transmission path of the service data according to the response message;

The first UE transmits the service data to the target device by using the transmission path.
The method according to claim 1, wherein the determining, by the first UE, the transmission path of the service data according to the response message comprises:

Determining, by the first UE, a candidate path that the first UE connects to the target device according to the response message;

The first UE selects at least one path from the candidate paths as the transmission path.
The method according to claim 2, wherein the determining, by the first UE, the candidate path of the first UE to connect to the target device according to the response message comprises:

The first UE adds a path between the first UE and the next hop UE on the at least one path of the next hop UE connected to the target device, to obtain the first UE connection. A candidate path of the target device.
The method according to claim 2 or 3, wherein the selecting, by the first UE, the at least one path from the candidate path as the transmission path comprises:

Determining, by the first UE, a data convergence point of the service data;

The first UE selects at least one path that passes through the data convergence point from the candidate path as the transmission path.
The method according to claim 2 or 3, wherein the selecting, by the first UE, the at least one path from the candidate path as the transmission path comprises:

Determining, by the first UE, a data convergence point and a maximum hop count of the service data;

The first UE selects, as the transmission path, at least one path that passes through the data convergence point and has a hop count not greater than the maximum hop count from the candidate paths.
The method according to any one of claims 1 to 5, wherein the type of the service data comprises: a voice call, an access to the Internet, or a local service.
The method according to any one of the preceding claims, wherein, when the type of the service data is a voice call, the request message includes: a public land mobile network identifier PLMN ID, used to indicate that the candidate path needs The carrier network accessing the PLMN ID indication is satisfied.
A transmission method, comprising:

The intermediate UE receives a request message, where the request message is used to request the intermediate UE to assist in transmitting the service data of the first UE to the target device, where the request message includes the first UE requesting the intermediate UE to transmit to the The type of business data of the target device;

The intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and sends a response message to the previous hop UE of the intermediate UE, where the response message is used to send The first UE indicates that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, and the response message includes that the intermediate UE connects to at least one of the target devices. path.
The method of claim 8 further comprising:

When the intermediate UE determines that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, send the request message to the next hop UE of the intermediate UE;

The intermediate UE receives a response message sent by the next hop UE of the intermediate UE, and adds a path between the intermediate UE and the next hop UE to the response message, where the response message is used to The first UE indicates that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes that the next hop UE is connected to the target device. At least one path;

The intermediate UE sends the response message to a previous hop UE of the intermediate UE.
The method of claim 8 further comprising:

When the intermediate UE determines that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, send the request message to the next hop UE of the intermediate UE;

The intermediate UE receives a response message sent by the next hop UE of the intermediate UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the location Transmitting, by the target device, the service data, where the response message includes the next hop UE connecting the destination At least one path of the standard device;

Determining, by the intermediate UE, a candidate path of the intermediate UE connected to the target device according to the response message;

The intermediate UE selects at least one path from the candidate path, and sends a response message to the uplink hop UE, where the response message includes at least one path selected by the intermediate UE.
The method according to claim 10, wherein the determining, by the intermediate UE, the candidate path of the intermediate UE to connect to the target device according to the response message comprises:

And the intermediate UE adds a path between the intermediate UE and the next hop UE on each path of the next hop UE connected to the target device according to the received response message, to obtain the The intermediate UE connects to the candidate path of the target device.
The method according to any one of claims 8 to 11, wherein the request message includes: data convergence point information of service data; the intermediate UE determines that the intermediate UE can directly assist the first UE Transmitting the service data to the target device, including:

The intermediate UE determines that the intermediate UE can send the service data of the first UE to a data convergence point indicated by the data convergence point information.
The method according to any one of claims 8 to 12, wherein, when the request-assisted service is a voice call, the request message further includes: a public land mobile network identifier PLMN ID; The intermediate UE can directly assist the first UE to transmit the service data to the target device, including:

The intermediate UE determines that the intermediate UE can assist the first UE to transmit the service data to the target device by accessing an operator network indicated by the PLMN ID.
The method according to any one of claims 8 to 13, wherein when the intermediate UE determines that the intermediate UE can directly assist the first UE to transmit the service data to the target device, the method further include:

Establishing an auxiliary connection between the intermediate UE and the network side device accessed by the intermediate UE;

The intermediate UE receives service data of the first UE;

The intermediate UE sends the service data of the first UE to the network side device on the auxiliary connection.
The method according to claim 14, wherein the intermediate UE establishes an auxiliary connection with the network side device accessed by the intermediate UE, including:

The intermediate UE sends the auxiliary indication information to the network side device, where the auxiliary indication information is used to indicate to the network side device that the intermediate UE is to perform auxiliary data transmission to the first UE;

The intermediate UE receives an auxiliary bearer setup message sent by the network side device, and the auxiliary bearer Data for transmitting the first UE;

The intermediate UE sends an auxiliary bearer setup complete message to the network side device.
The method according to any one of claims 8 to 15, wherein the type of the service data comprises: a voice call, an access to the Internet, or a local service.
A UE, comprising:

a sending unit, configured to send a request message, where the request message is used to request the next hop UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the next a type of service data that the UE assists in transmitting to the target device;

a receiving unit, configured to receive a response message sent by the next hop UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to the target The device transmits the service data; the response message includes at least one path that the next hop UE connects to the target device;

a determining unit, configured to determine a transmission path of the service data according to the response message received by the receiving unit;

And a transmitting unit, configured to transmit the service data to the target device by using the transmission path determined by the determining unit.
The UE according to claim 17, wherein the determining unit is specifically configured to:

Determining, according to the response message, a candidate path that the first UE connects to the target device;

At least one path is selected from the candidate paths as the transmission path.
The UE according to claim 18, wherein the determining unit is specifically configured to:

Adding a path between the first UE and the next hop UE on the at least one path of the next hop UE connected to the target device, to obtain that the first UE is connected to the target device. Candidate path.
The UE according to claim 18 or 19, wherein the determining unit is specifically configured to:

Determining a data convergence point of the business data;

Selecting at least one path passing through the data convergence point from the candidate paths as the transmission path.
The UE according to claim 18 or 19, wherein the determining unit is specifically configured to:

Determining a data convergence point and a maximum hop count of the service data;

Selecting, as the transmission path, at least one path that passes through the data convergence point and has a hop count not greater than the maximum hop count from the candidate paths.
The UE according to any one of claims 17 to 21, wherein the type of the service data comprises: a voice call, an access to the Internet, or a local service.
The UE according to claim 22, wherein when the type of the service data is a voice call, the request message includes: a public land mobile network identifier PLMN ID, indicating that the candidate path needs to meet the access To the carrier network indicated by the PLMN ID.
A UE, comprising:

a receiving unit, configured to receive a request message, where the request message is used to request the intermediate UE to assist in transmitting service data of the first UE to a target device, where the request message includes the first UE requesting the intermediate UE to assist The type of business data transmitted to the target device;

a determining unit, configured to determine whether the intermediate UE can directly assist the first UE to transmit the service data to the target device;

a sending unit, configured to determine, by the determining unit, that the intermediate UE can directly assist the first UE to transmit the service data to the target device, and send a response message to a previous hop UE of the intermediate UE, where The response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes the intermediate UE connection At least one path of the target device.
The intermediate UE according to claim 24, characterized in that

The sending unit is further configured to: when the intermediate UE is not able to directly assist the first UE to transmit the service data to the target device, send the request message to a next hop UE of the intermediate UE;

The receiving unit is further configured to: receive a response message sent by the next hop UE of the intermediate UE;

And an adding unit, configured to add a path between the intermediate UE and the next hop UE to the response message, where the response message is used to indicate the next hop to the first UE The UE can directly or indirectly assist the first UE to transmit the service data to the target device, where the response message includes at least one path that the next hop UE connects to the target device;

The sending unit is further configured to: send, by the intermediate UE, the response message to a previous hop UE of the intermediate UE.
The intermediate UE according to claim 24, wherein the sending unit is further configured to: determine that the intermediate UE cannot directly assist the first UE to transmit the service data to the target device, to the middle The next hop UE of the UE sends the request message;

The receiving unit is further configured to: receive a response message sent by the next hop intermediate UE of the intermediate UE, where the response message is used to indicate to the first UE that the next hop UE can directly or indirectly assist the Transmitting, by the first UE, the service data to the target device, where the response message includes at least one path that the next hop UE connects to the target device;

Also includes:

a path determining unit, configured to determine, according to the response message, a candidate path that the intermediate UE connects to the target device;

a selecting unit: configured to select at least one path from the candidate paths;

The sending unit is further configured to: send a response message to the uplink hop UE, where the sent response message includes at least one path selected by the intermediate UE.
The intermediate UE according to claim 26, wherein the determining unit is specifically configured to:

Adding, according to the received response message, a path between the intermediate UE and the next hop UE on each path of the next hop UE connected to the target device, to obtain the intermediate UE connection target The candidate path of the device.
The intermediate UE according to any one of claims 24 to 27, wherein the request message includes: data convergence point information of the service data; and the determining unit is specifically configured to:

Determining that the intermediate UE can send the service data of the first UE to a data convergence point indicated by the data convergence point information.
The intermediate UE according to any one of claims 24 to 28, wherein, when the request-assisted service is a voice call, the request message further includes: a public land mobile network identifier PLMN ID; Used for:

Determining that the intermediate UE can assist the first UE to transmit the service data to the target device by accessing an operator network indicated by the PLMN ID.
The intermediate UE according to any one of claims 24 to 29, wherein the determining unit determines that the intermediate UE can directly assist the transmission of the service data to the target device, the intermediate UE further includes:

An establishing unit, configured to establish an auxiliary connection with the network side device accessed by the intermediate UE;

a service data receiving unit, configured to receive service data of the first UE;

And a service data sending unit, configured to send the service data of the first UE received by the service data receiving unit to the network side device on the auxiliary connection.
The intermediate UE according to claim 30, wherein the establishing unit is specifically configured to:

Sending auxiliary indication information to the network side device, where the auxiliary indication information is used to the network side The device instructs the intermediate UE to perform auxiliary data transmission to the first UE;

Receiving a secondary bearer setup message sent by the network side device, where the secondary bearer is used to transmit data of the first UE;

Sending a secondary bearer setup complete message to the network side device.
The intermediate UE according to any one of claims 24 to 31, wherein the type of the service data comprises: a voice call, an access to the Internet, or a local service.