WO2022120718A1

WO2022120718A1 - Data transmission method and apparatus, and communication device and storage medium

Info

Publication number: WO2022120718A1
Application number: PCT/CN2020/135273
Authority: WO
Inventors: 洪伟; 于磊; 江小威
Original assignee: 北京小米移动软件有限公司
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-06-16
Also published as: CN114946200A

Abstract

Provided are a data transmission method and apparatus, and a communication device and a storage medium. The method comprises: receiving multicast and broadcast service (MBS) information broadcast by a first type of network to an MBS group; and determining downlink data of a first user equipment and/or a second user equipment according to the MBS information, wherein the first user equipment has a binding and association relationship with the second user equipment, and the first user equipment and the second user equipment belong to the MBS group.

Description

Data transmission method, device, communication device and storage medium

technical field

The present application relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and in particular, to a data transmission method, apparatus, communication device, and storage medium.

Background technique

At present, wearable devices such as smart watches or sports bracelets have implemented communication using cellular mobile communication technology.

The wearable device with the communication capability of cellular mobile communication technology meets the needs of users for independently using the wearable device to make calls and surf the Internet. The user hopes that the service can be presented on the mobile phone and the associated wearable device at the same time, so as to facilitate the selection of the device that implements the service, so as to obtain a better service experience. For example, when a phone call is received, the phone and watch will ring at the same time, and the user can choose any device to answer.

SUMMARY OF THE INVENTION

In view of this, embodiments of the present disclosure provide a data transmission method, apparatus, communication device, and storage medium.

According to a first aspect of the embodiments of the present disclosure, a data transmission method is provided, wherein, applied to a first user equipment, the method includes:

Receive the MBS information broadcast by the first type of network to the multicast broadcast service (MBS, Multicast and Broadcast Service) group;

Determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein, the first user equipment and the second user equipment have a binding relationship, and the first user equipment belonging to the MBS group with the second user equipment.

According to a second aspect of the embodiments of the present disclosure, a data transmission method is provided, wherein, applied to a second user equipment, the method includes:

receiving the MBS information broadcast by the first type of network to the MBS group;

According to a third aspect of the embodiments of the present disclosure, a data transmission method is provided, wherein, applied to a core network, the method includes:

In response to the first user equipment having a binding association relationship with the second user equipment, establishing an MBS group including the first user equipment and the second user equipment;

MBS information is broadcast to the MBS group through the first type of network, wherein the MBS information carries downlink data sent to the first user equipment and/or the second user equipment.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a data transmission apparatus, wherein, applied to a first user equipment, the apparatus includes: a first receiving module and a first determining module, wherein,

The first receiving module is configured to receive the MBS information broadcast by the first type of network to the MBS group;

The first determining module is configured to determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein the first user equipment and the second user equipment have a binding association relationship, and the first user equipment and the second user equipment belong to the MBS group.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a data transmission apparatus, wherein, applied to a second user equipment, the apparatus includes: a fifth receiving module and a second determining module, wherein,

The fifth receiving module is configured to receive the MBS information broadcast by the first type of network to the MBS group;

The second determining module is configured to determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein the first user equipment and the second user equipment have a binding association relationship, and the first user equipment and the second user equipment belong to the MBS group.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a data transmission apparatus, wherein, applied to a base station, the apparatus includes: a establishing module and a broadcasting module, wherein,

The establishing module is configured to, in response to the first user equipment having a binding association relationship with the second user equipment, establish an MBS group including the first user equipment and the second user equipment;

The broadcasting module is configured to broadcast MBS information to the MBS group through the first type of network, wherein the MBS information carries downlink data sent to the first user equipment and/or the second user equipment .

According to a seventh aspect of the embodiments of the present disclosure, there is provided a communication device including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs all When the executable program is described, the steps of the data transmission method described in the first aspect, the second aspect or the third aspect are executed.

According to an eighth aspect of the embodiments of the present disclosure, there is provided a storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the first aspect, the second aspect or the third aspect is implemented Describe the steps of the data transmission method

In the data transmission method, device, communication device, and storage medium provided by the embodiments of the present disclosure, the first user equipment receives the MBS information broadcast by the first type network to the MBS group; and determines the first user equipment and/or the first user equipment and/or the first user equipment according to the MBS information Downlink data of two user equipments; wherein the first user equipment and the second user equipment have a binding association relationship, and the first user equipment and the second user equipment belong to the MBS group. In this way, by adding the first user equipment and the second user equipment to the same MBS group, the first user equipment and the second user equipment can respectively receive mutual downlink data, so as to realize the downlink data of the first user equipment and the second user equipment synchronization. Meanwhile, the cellular mobile communication network only needs to establish one PDU session to transmit downlink data of the first user equipment and/or the second user equipment, thereby saving network resources.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not limiting of the disclosed embodiments.

Description of drawings

The accompanying drawings, which are incorporated into and constitute a part of this specification, are only intended to illustrate exemplary embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention, and are not intended to No limitation on the scope of the present disclosure is intended.

FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

2 is a schematic flowchart of a data transmission method according to an exemplary embodiment;

3 is a schematic flowchart of another data transmission method according to an exemplary embodiment;

FIG. 4 is a schematic flowchart of yet another data transmission method according to an exemplary embodiment;

5 is a block diagram of a data transmission apparatus according to an exemplary embodiment;

FIG. 6 is a block diagram of another data transmission apparatus according to an exemplary embodiment;

7 is a block diagram of yet another apparatus for transmitting a data transmission message according to an exemplary embodiment;

Fig. 8 is a block diagram of an apparatus for data transmission according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the invention as recited in the appended claims.

The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments, and are not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determining."

Please refer to FIG. 1 , which shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in FIG. 1 , the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .

The terminal 11 may be a device that provides voice and/or data connectivity to the user. The terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a The computer of the IoT terminal, for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device. For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access node, a remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment, UE). Alternatively, the terminal 11 may also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless communication device externally connected to the trip computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.

The base station 12 may be a network-side device in a wireless communication system. Wherein, the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system. Alternatively, the wireless communication system may also be a next-generation system of the 5G system. Among them, the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network). Alternatively, the MTC system.

The base station 12 may be an evolved base station (eNB) used in the 4G system. Alternatively, the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU). The centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.

A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on the fourth generation mobile cellular communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile cellular communication network technology (5G) standard. For example, the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile cellular communication network technical standard.

In some embodiments, an E2E (End to End, end-to-end) connection may also be established between the terminals 11 . For example, V2V (vehicle to vehicle, vehicle-to-vehicle) communication, V2I (vehicle to Infrastructure, vehicle-to-roadside equipment) communication and V2P (vehicle to pedestrian, vehicle-to-person) communication in vehicle-to-everything (V2X) communication etc. scene.

In some embodiments, the above wireless communication system may further include a network management device 13 .

Several base stations 12 are respectively connected to the network management device 13 . Wherein, the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME). Alternatively, the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc. The implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.

The execution subjects involved in the embodiments of the present disclosure include, but are not limited to, wearable devices, user equipment such as terminals of a mobile cellular communication network, base stations, and core networks.

The application scenarios of the embodiments of the present disclosure include, but are not limited to, in the related art, a wearable device can support a Subscriber Identity Module (SIM, Subscriber Identity Module) card, and the wearable device has its own International Mobile Subscriber Identity (IMSI, International Mobile Subscriber). Identity) is handled by the mobile cellular communication network as a UE independent of the handset in the business process. In the core network user database, the user's Mobile Station International Integrated Services Digital Network Number (MSISDN, Mobile Station International Integrated Services Digital Network Number) is bound to the IMSI of the mobile phone and the IMSI of the wearable device associated with the mobile phone:

For the calling service, both the mobile phone and its associated wearable device can initiate a call;

For the called service, the mobile phone and its associated wearable device can be called at the same time.

In the related art, if the mobile phone has multiple associated wearable devices, the network needs to establish different Protocol Data Unit (PDU, Protocol Data Unit) sessions for the mobile phone and each device to transmit the same content, which causes great damage to network resources. waste. The more wearable devices associated with the mobile phone, the greater the signaling and user plane resources consumed by the network.

Service cannot be received when the wearable device is not covered by the mobile cellular communication network.

Receiving traffic data streams from a mobile cellular communication network can consume a significant amount of wearable device power.

As shown in FIG. 2, this exemplary embodiment provides a data transmission method, which can be applied to a first user equipment of a wireless communication system. The data transmission method includes:

Step 201: Receive MBS information broadcast by the first type of network to the MBS group;

Step 202: Determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein, the first user equipment and the second user equipment have a binding relationship, and the first user equipment A user equipment and the second user equipment belong to the MBS group.

The first user equipment may be an enhanced mobile broadband eMBB (Enhanced Mobile Broadband) terminal such as a mobile phone or the like. The second user equipment may be a lightweight terminal type wearable device such as a smart watch and a sports bracelet, or a mobile phone with less remaining power. Generally, the number of antennas of the lightweight terminal is less than that of the eMBB terminal, and the operating frequency of the processor of the lightweight terminal is lower than the terminal type of the eMBB terminal. That is, the number of antennas of the second user equipment is less than that of the first user equipment, the operating frequency of the processor of the second user equipment is lower than that of the first user equipment, or the power of the second user equipment is lower than that of the first user equipment. The first user equipment and the second user equipment may be connected using a short-range communication technology, such as connection through Bluetooth, NFC, infrared, and the like.

Here, the first type of network may be a cellular mobile communication network or the like. The first user equipment and the second user equipment may access the Internet and the like through the first type of network.

The first user equipment and the second user equipment may access the core network through the base station of the cellular mobile communication network. The binding association relationship between the first user equipment and the second user equipment may be a preset relationship between the first user equipment and the second user equipment for providing the same service information; for example, the user's MSISDN in the core network user database may be Both the IMSI of the first user equipment and the IMSI of the second user equipment are bound at the same time, when the calling service is performed, both the first user equipment and the second user equipment can initiate a call; for the first user equipment or the second user equipment For the called service, the first user equipment and the second user equipment can be called at the same time.

The core network may establish an MBS group including at least the first user equipment or the second user equipment. The downlink data for the first user equipment and/or the second user equipment may be sent to the first user equipment or the second user equipment through MBS multicast broadcast technology. Here, the MBS information may be a multicast broadcast PDU session. There may be multiple first user equipments or second user equipments in the MBS group.

Here, the cellular mobile communication network may be used, which may include, but is not limited to, a 5G cellular mobile communication network and the like. It can be selected by the Network Exposure Function (NEF, Network Exposure Function)/Multicast Broadcast Service Function (MBSF, Multicast Broadcast Service Function) in the 5G cellular mobile communication network, and the session management function network element (SMF, Session Management Function), etc. for multicast broadcast PDU session control.

The first user equipment and the second user equipment that belong to the MBS group can receive the MBS information broadcast to the MBS group, and the first user equipment and the second user equipment can simultaneously obtain the MBS information and send it to the first user equipment and/or the second user equipment. The downlink data of the second user equipment, that is, the first user equipment can obtain the downlink data sent to the second user equipment, and the second user equipment can also obtain the downlink data sent to the first user equipment.

For the uplink data, the first user equipment and the second user equipment may respectively establish a PDU connection with the first type of network for uplink transmission.

In this way, by adding the first user equipment and the second user equipment to the same MBS group, the first user equipment and the second user equipment can respectively receive mutual downlink data, so as to realize the downlink data of the first user equipment and the second user equipment synchronization. Meanwhile, the cellular mobile communication network only needs to establish one PDU session to transmit downlink data of the first user equipment and/or the second user equipment, thereby saving network resources.

In one embodiment, the method further includes:

In response to the first user equipment and the second user equipment being connected through a second type of network, sending the first user equipment and/or the second user to the second user equipment through a second type of network Downlink data from the device.

The first type of network and the first type of network to which the first user equipment and the second user equipment are connected may be networks with different communication protocols, communication frequency bands, and/or power ranges. The second type of network may be a wireless communication network with a smaller coverage area, and the wireless signal transmission power of the bound connection network is smaller, for example, Wi-Fi, Bluetooth, and the like. The second type of network may also be a point-to-point connected network such as a sidelink or the like.

The first user equipment and the second user equipment may be capable of accessing the first type of network and the second type of network at the same time. For example, the first user equipment and the second user equipment can access the cellular mobile communication network at the same time, and the first user equipment and the second user equipment are connected through the second type of network. Exemplarily, the first user equipment and the second user equipment may access the core network through a base station of a cellular mobile communication network such as 4G or 5G. The first user equipment and the second user equipment may be connected through Bluetooth (BT, Blue Tooth), Bluetooth low energy consumption, or Wi-Fi.

After the first user equipment and the second user equipment establish a second type of network connection, such as after interconnection through Wi-Fi, the first user equipment may be used as a proxy for the second user equipment to receive the first user equipment and/or the first user equipment from the first type of network. the downlink data of the second user equipment. Here, the downlink data of the first user equipment and/or the second user equipment may be downlink data carried in the MBS information broadcast by the core network to the MBS group.

When the first user equipment transmits downlink data through the second type of network, the second user equipment may be connected to the first type of network, or may not be connected to the first type of network.

Exemplarily, after the mobile phone and the smart watch establish a Bluetooth connection, the smart watch no longer receives the MBS information broadcast by the core network to the MBS group. After the mobile phone receives the MBS information, it can send the downlink data of the mobile phone and/or the smart watch carried in the MBS information to the smart watch through Bluetooth.

The first user equipment may transparently transmit the downlink data to the second user equipment, and may also process and transmit the downlink data to the second user equipment.

Exemplarily, for downlink data sent to the second user equipment, the first user equipment may transparently transmit the downlink data to the second user equipment. For the purpose of synchronization, the first user equipment may also parse downlink data. For the downlink data sent to the first user equipment, the first user equipment may process the downlink data and transmit it to the second user equipment. For example, when the downlink data is a voice call for the first user equipment, the first user equipment can send necessary information to the second user equipment for the content of the voice call, such as using the second user equipment as an audio device, through the second user equipment The network sends voice content.

In this way, the second user equipment receives downlink data through the second type of network. On the one hand, the power consumption of connecting to the second type of network is less than that of connecting to the first type of network, so the second user equipment can save power. On the other hand, when the second user equipment does not have the first type of network connection, it can still receive downlink data, which improves the continuity of data transmission.

In one embodiment, the method further includes:

receiving, through the second type of network, the first request information sent by the second user equipment,

The sending the downlink data of the first user equipment and/or the second user equipment to the second user equipment through the second type of network includes:

Based on the first request information, the downlink data of the first user equipment and/or the second user equipment is sent to the second user equipment through the second type of network.

When the second user equipment is close to the first user equipment and reaches a range within which the second type of network can be used, the second user equipment establishes a second type of network connection with the first user equipment.

During the second type of network connection process, the second user equipment may send a first request to the first user equipment, and the first user equipment may receive downlink data of the second user equipment.

Exemplarily, after the close-proximity communication connection between the UE and the wearable device is successfully established, the wearable device closes the cellular mobile communication network and initiates a deregistration request to the cellular mobile communication network. The wearable device with which the UE proxy establishes a short-range communication connection receives and processes downlink service data, including MBS broadcast service flow, and sends the processed downlink service data flow to the wearable device.

In one embodiment, the method further includes:

In response to the first user equipment and the second user equipment being connected through the second type of network, receive the uplink data of the second user equipment, and send the uplink data of the second user equipment through the first type of network data.

After the first user equipment and the second user equipment establish a second type of network connection, such as after being interconnected through Wi-Fi, the first user equipment can act as a proxy for the second user equipment to send the uplink of the second user equipment to the first type of network. data.

When the first user equipment transmits uplink data through the first type of network, the second user equipment may or may not be connected to the first type of network.

Exemplarily, after the mobile phone and the smart watch establish a Bluetooth connection, the smart watch no longer sends uplink data through the cellular mobile communication network. The smart watch sends the uplink data to the mobile phone, and the mobile phone sends the uplink data through the cellular mobile communication network.

The first user equipment may transparently transmit the uplink data to the base station of the first type of network, or may process the uplink data and then transmit it to the base station of the first type of network.

Exemplarily, for the uplink downlink data of the second user equipment, the first user equipment may transparently transmit the uplink data of the second user equipment to the base station of the first type of network. For the purpose of synchronization, the first user equipment may also parse the uplink data. The first user equipment may process the uplink data of the second user equipment and transmit it to the base station of the first type of network. For example, when the uplink data is the voice content of the current voice call of the first user equipment, the first user equipment encapsulates the voice content into a data frame and sends it to the base station.

In this way, the second user equipment transmits uplink data through the second type of network. On the one hand, the power consumption of connecting to the second type of network is less than that of connecting to the first type of network, so the second user equipment can save power. On the other hand, when the second user equipment does not have the first type of network connection, it can still send uplink data, which improves the continuity of data transmission.

In one embodiment, the method further includes:

receiving, through the second type of network, the second request information sent by the second user equipment,

The receiving uplink data of the second user equipment and sending the uplink data of the second user equipment through the first type of network includes:

Based on the second request information, the uplink data of the second user equipment is received, and the uplink data of the second user equipment is sent through the first type of network.

Here, the first request information may be the same as or different from the second request information. The second user equipment may individually request the first user equipment to receive and send downlink data to the second user equipment through the second type of network, or send uplink data of the second user equipment. A request message may also be used to request the first user equipment to receive and send downlink data to the second user equipment through the second type of network, and to send uplink data of the second user.

During the second type of network connection process, the second user equipment may send a second request to the first user equipment, and the first user equipment sends the uplink data of the second user equipment. The uplink data may be sent by the second user equipment to the first user equipment through the second type of network.

Exemplarily, after the close-proximity communication connection between the UE and the wearable device is successfully established, the wearable device closes the cellular mobile communication network and initiates a deregistration request to the cellular mobile communication network. The UE receives uplink service data from the wearable device with which the short-range communication connection is established, and forwards it to the network after processing.

In one embodiment, the method further includes:

receiving third request information sent by the second user to the first user equipment through the second type of network;

According to the third request information, stop sending the determined downlink data of the first user equipment and/or the second user equipment to the second user equipment through the second type of network, and/or , stop receiving through the second type of network, and send the uplink data of the second user equipment through the first type of network.

After the first user equipment and the second user equipment establish a second type of network connection, such as after being interconnected through Wi-Fi, the first user equipment can act as a proxy for the second user equipment to send the uplink of the second user equipment to the first type of network. data, or, the downlink data of the first user equipment and/or the second user equipment received from the first type of network is sent to the second user equipment through the second type of network.

At this time, the second user equipment no longer needs to maintain the connection of the first type of network. Therefore, the first type of network can be deregistered. In this way, the power consumption for maintaining the first type of network connection can be reduced, and the standby time can be increased.

If the first user equipment and the second user equipment are affected by the environment or the distance changes, and the signal quality parameter of the second type of network is lower than the preset threshold, for example, the first user equipment and the second user equipment are beyond the reachable range of the second type of network, The second user equipment can re-register with the first type of network and join the MBS group, so that it can continue to receive downlink data or send uplink data through the first type of network. In order to maintain the stability of data communication.

Exemplarily, when the distance between the wearable device and the UE exceeds the reachable range of the short-range communication connection, before disconnecting the connection, the wearable device activates the communication module, initiates a registration request to the cellular mobile communication network, and joins the MBS group. request.

After the second user equipment joins the MBS group, it may send third request information to indicate that the first user equipment is not acting as a proxy for the uplink data and downlink data of the second user equipment, and the second user equipment itself performs uplink data and downlink data through the first type of network transmission of data. In this way, when the second type of network cannot meet the transmission requirements, the second user equipment can still maintain the transmission of uplink data and downlink data, thereby improving the reliability of data transmission.

As shown in FIG. 3 , this exemplary embodiment provides a data transmission method, which can be applied to a second user equipment of a wireless communication system. The data transmission method includes:

Step 301: Receive MBS information broadcast by the first type of network to the MBS group;

Step 302: Determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein, the first user equipment and the second user equipment have a binding relationship, and the first user equipment A user equipment and the second user equipment belong to the MBS group.

The first user equipment may be an eMBB terminal such as a mobile phone or the like. The second user equipment may be a light-weight terminal type wearable device such as a smart watch or a sports bracelet, or a mobile phone with less remaining power. Generally, the number of antennas of the lightweight terminal is less than that of the eMBB terminal, and the operating frequency of the processor of the lightweight terminal is lower than the terminal type of the eMBB terminal. That is, the number of antennas of the second user equipment is less than that of the first user equipment, the operating frequency of the processor of the second user equipment is lower than that of the first user equipment, or the power of the second user equipment is lower than that of the first user equipment. The first user equipment and the second user equipment may be connected using a short-range communication technology, such as connecting through Bluetooth and the like.

The first user equipment and the second user equipment that belong to the MBS group can receive the MBS information broadcast to the MBS group, and the first user equipment and the second user equipment can simultaneously obtain the MBS information and send it to the first user equipment and/or the second user equipment. The downlink data of the second user equipment, that is, the first user equipment can obtain the downlink data sent to the second user equipment, and the second user equipment can also obtain the downlink data sent to the second user equipment.

In one embodiment, the method further includes:

In response to the first user equipment and the second user equipment being connected through a second type of network, receiving the first user equipment and/or the first user equipment and/or the first user equipment sent by the first user equipment through the second type of network. 2. Downlink data of the user equipment.

In one embodiment, the method further includes:

sending first request information to the first user equipment, where the first request information is used to instruct the first user equipment to send the first user equipment to the second user equipment through the second type of network Downlink data of the user equipment and/or the second user equipment.

In one embodiment, the method further includes:

In response to the first user equipment and the second user equipment being connected through a second type of network, the uplink data of the second user equipment is sent to the first user equipment through the second type of network.

In one embodiment, the method further includes:

Send second request information to the first user equipment, where the second request information is used to instruct the first user equipment to send the uplink data of the second user equipment through the first type of network.

In one embodiment, the method further includes:

The first type of network is deregistered in response to the first user equipment and the second user equipment being connected through a second type of network.

In one embodiment, the method further includes:

In response to the signal quality parameter of the second type of network being lower than a preset threshold and the second user equipment not accessing the first type of network, registering with the first type of network and joining the MBS group.

After the first user equipment and the second user equipment establish a second type of network connection, such as after being interconnected through Wi-Fi, the first user equipment can act as a proxy for the second user equipment to send the uplink of the second user equipment to the first type of network. data, or, the downlink data of the first user equipment and/or the second user equipment received from the first type of network is sent to the second user equipment through the second type of network. The second user equipment may deregister the first type of network.

In one embodiment, the method further includes:

In response to the second user joining the MBS group, third request information is sent to the first user equipment through the second type of network, where the third request information is used to instruct the first user equipment to stop using the the second type of network sends the downlink data of the first user equipment and/or the second user equipment to the second user equipment, and/or stops receiving through the second type of network, and sends the downlink data through the second type of network The first type of network sends the uplink data of the second user equipment.

After the second user equipment joins the MBS group, it may send third request information, indicating that the first user equipment is not acting as a proxy for the uplink data and downlink data of the second user equipment, and the second user equipment itself performs uplink data and downlink data through the first type of network transmission of data. In this way, when the second type of network cannot meet the transmission requirements, the second user equipment can still maintain the transmission of uplink data and downlink data, thereby improving the reliability of data transmission.

As shown in FIG. 4 , this exemplary embodiment provides a data transmission method, which can be applied to a core network of a wireless communication system. The data transmission method includes:

Step 401: In response to a first user equipment having a binding association relationship with a second user equipment, establish an MBS group including the first user equipment and the second user equipment;

Step 402: Broadcast MBS information to the MBS group through the first type of network, where the MBS information carries downlink data sent to the first user equipment and/or the second user equipment.

In one embodiment, the method further includes at least one of the following:

de-registering the second user equipment from the first type of network based on the de-registration request of the second user equipment;

Based on the registration request of the second user equipment, the second user equipment is registered with the first type of network, and the second user equipment is added to the MBS group.

A specific example is provided below in conjunction with any of the above-mentioned embodiments:

A mobile phone and a wearable device can form an MBS group, for example, both the UE and its wearable device are registered to the same MBS group. For downlink data, MBS multicast broadcast technology can be used to send downlink data streams to mobile phones and wearable devices through a multicast broadcast PDU session. For uplink data, the UE and its wearable device each establish a PDU connection.

The wearable device and the UE can establish a short-range communication connection, such as a point-to-point connection or through Wi-Fi and other technologies, and send and receive uplink and downlink data packets from the 3GPP network through the UE proxy wearable device. The wearable device and the UE only transmit lightweight data flow. After the wearable device successfully establishes a short-range communication connection with the UE, it initiates a deregistration request to the 3GPP network, and then closes the 3GPP communication module. All subsequent uplink and downlink data packets are sent and received through the UE through the UE:

For uplink data, the wearable device sends the data packet to the UE through the short-range communication connection, and the UE processes it and sends it to the network;

For downlink data, the wearable device is not included in the multicast broadcast PDU session, and the UE is responsible for receiving the data and performing corresponding processing, and then distributing the downlink data to the wearable device through the short-range communication connection.

When the distance between the wearable device and the UE is about to exceed the short-range communication range, before disconnecting, the wearable device activates the communication module and initiates a registration request and a request to join the MBS group to the 3GPP network.

The specific plans are as follows:

1. The UE and its associated wearable device register as an MBS group.

2. For the downlink service data flow sent to any UE and/or its associated wearable device, the core network establishes an MBS multicast PDU session. For example, in the 5G core network, NEF/MBSF selects the The SMF of the PDU session is used for session control.

3. When the wearable device is close to the UE and reaches the range where the short-range communication technology can be used, the wearable device establishes a short-range communication connection with the UE.

In the process of establishing the short-range communication connection, the wearable device requests the UE to process its subsequent uplink and downlink service flows as a proxy of the UE.

4. After the short-range communication connection is successfully established, the wearable device closes the 3GPP communication module and initiates a deregistration request to the network.

The wearable device with which the UE proxy establishes a short-range communication connection receives and processes the downlink service flow, including the MBS broadcast service flow, and sends the processed downlink service data flow to the wearable device.

The UE receives the upstream service flow from the wearable device with which the short-range communication connection is established, and forwards it to the network after processing.

5. When the distance between the wearable device and the UE exceeds the reachable range of the short-range communication connection, before disconnecting the connection, the wearable device activates the communication module and initiates a registration request to the 3GPP network and a request to join the MBS group.

An embodiment of the present invention further provides a data transmission apparatus, which is applied to a first user equipment. FIG. 5 is a schematic structural diagram of a data transmission apparatus 100 provided by an embodiment of the present invention; as shown in FIG. 5 , the apparatus 100 includes: a first The receiving module 110 and the first determining module 120, wherein,

The first receiving module 110 is configured to receive the MBS information broadcast by the first type of network to the MBS group;

The first determining module 120 is configured to determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein the first user equipment and the second user equipment are bound an association relationship, and the first user equipment and the second user equipment belong to the MBS group.

In one embodiment, the apparatus 100 further includes:

The first sending module 130 is configured to send the first user equipment to the second user equipment through the second type of network in response to the first user equipment and the second user equipment being connected through the second type of network and/or downlink data of the second user equipment.

In one embodiment, the apparatus 100 further includes:

The second receiving module 140 is configured to receive the first request information sent by the second user equipment through the second type of network,

The first sending module 130 includes:

The first sending submodule 131 is configured to send downlink data of the first user equipment and/or the second user equipment to the second user equipment through the second type of network based on the first request information .

In one embodiment, the apparatus 100 further includes:

The forwarding module 150 is configured to, in response to the first user equipment and the second user equipment being connected through the second type of network, receive the uplink data of the second user equipment, and send the said first user equipment through the first type of network Uplink data of the second user equipment.

In one embodiment, the apparatus 100 further includes:

The third receiving module 160 is configured to receive the second request information sent by the second user equipment through the second type of network,

The forwarding module 150 includes:

The forwarding submodule 151 is configured to receive the uplink data of the second user equipment based on the second request information, and send the uplink data of the second user equipment through the first type of network.

In one embodiment, the apparatus 100 further includes:

a fourth receiving module 170, configured to receive third request information sent by the second user to the first user equipment through the second type of network;

The control module 180 is configured to, according to the third request information, stop sending the determined information of the first user equipment and/or the second user equipment to the second user equipment through the second type of network. Downlink data, and/or stop receiving through the second type of network, and send the uplink data of the second user equipment through the first type of network.

An embodiment of the present invention further provides a data transmission apparatus, which is applied to a second user equipment. FIG. 6 is a schematic structural diagram of a data transmission apparatus 200 provided in an embodiment of the present invention; as shown in FIG. 6 , the apparatus 200 includes: the fifth receiving module 210 and the second determining module 220, wherein,

The fifth receiving module 210 is configured to receive the MBS information broadcast by the first type of network to the MBS group;

The second determining module 220 is configured to determine the downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein the first user equipment and the second user equipment are bound an association relationship, and the first user equipment and the second user equipment belong to the MBS group.

In one embodiment, the apparatus 200 further includes:

A sixth receiving module 230, configured to receive the first user equipment sent by the first user equipment through the second type of network in response to the first user equipment and the second user equipment being connected through the second type of network Downlink data of the user equipment and/or the second user equipment.

In one embodiment, the apparatus 200 further includes:

The second sending module 240 is configured to send first request information to the first user equipment, where the first request information is used to instruct the first user equipment to send the first request information to the first user equipment through the second type of network The second user equipment sends downlink data of the first user equipment and/or the second user equipment.

In one embodiment, the apparatus 200 further includes:

A third sending module 250, configured to send the second user to the first user equipment through the second type of network in response to the first user equipment and the second user equipment being connected through the second type of network Upstream data of the device.

In one embodiment, the apparatus 200 further includes:

The fourth sending module 260 is configured to send second request information to the first user equipment, wherein the second request information is used to instruct the first user equipment to send the second user through the first type of network Upstream data of the device.

In one embodiment, the apparatus 200 further includes:

The deregistration module 270 is configured to deregister the first type of network in response to the first user equipment and the second user equipment being connected through the second type of network.

In one embodiment, the apparatus 200 further includes:

The registration module 280 is configured to, in response to the signal quality parameter of the second type of network being lower than a preset threshold, and the second user equipment not accessing the first type of network, register the first type of network, and Join the MBS group.

In one embodiment, the apparatus 200 further includes:

The fifth sending module 290 is configured to, in response to the second user joining the MBS group, send third request information to the first user equipment through the second type of network, wherein the third request information is used to indicate the the first user equipment stops sending downlink data of the first user equipment and/or the second user equipment to the second user equipment through the second type of network, and/or stops sending the downlink data of the first user equipment and/or the second user equipment through the second user equipment receiving the uplink data of the second user equipment through the first-type network.

An embodiment of the present invention further provides a data transmission apparatus, which is applied to a core network. FIG. 7 is a schematic structural diagram of a data transmission apparatus 300 provided by an embodiment of the present invention; as shown in FIG. 7 , the apparatus 300 includes: a establishing module 310 and a Broadcast module 320, wherein,

The establishing module 310 is configured to, in response to the first user equipment having a binding association relationship with the second user equipment, establish an MBS group including the first user equipment and the second user equipment;

The broadcasting module 320 is configured to broadcast MBS information to the MBS group through the first type of network, wherein the MBS information carries the downlink sent to the first user equipment and/or the second user equipment data.

In one embodiment, the apparatus 300 further includes at least one of the following:

The first configuration module 330 is configured to de-register the second user equipment from the first type of network based on the de-registration request of the second user equipment;

The second configuration module 340 is configured to, based on the registration request of the second user equipment, register the second user equipment with a network of the first type, and add the second user equipment to the MBS group.

In an exemplary embodiment, the first receiving module 110, the first determining module 120, the first sending module 130, the second receiving module 140, the forwarding module 150, the third receiving module 160, the fourth receiving module 170, the control module 180, fifth receiving module 210, second determining module 220, sixth receiving module 230, second sending module 240, third sending module 250, fourth sending module 260, de-registration module 270, registration module 280, fifth The sending module 290, the establishing module 310, the broadcasting module 320, the first configuration module 330, the second configuration module 340, etc. can be controlled by one or more central processing units (CPU, Central Processing Unit), graphics processing unit (GPU, Graphics Processing Unit), etc. ), baseband processor (BP, baseband processor), Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronic components to achieve, also It may be implemented in conjunction with one or more radio frequency (RF) antennas for performing the aforementioned method.

FIG. 8 is a block diagram of an apparatus 3000 for data transmission according to an exemplary embodiment. For example, apparatus 3000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.

8, the apparatus 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And the communication component 3016.

The processing component 3002 generally controls the overall operation of the apparatus 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 3002 can include one or more processors 3020 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components. For example, processing component 3002 may include a multimedia module to facilitate interaction between multimedia component 3008 and processing component 3002.

Memory 3004 is configured to store various types of data to support operation at device 3000 . Examples of such data include instructions for any application or method operating on the device 3000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power supply assembly 3006 provides power to various components of device 3000. Power supply components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 3000.

Multimedia component 3008 includes a screen that provides an output interface between device 3000 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. A touch sensor can sense not only the boundaries of a touch or swipe action, but also the duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 3008 includes a front-facing camera and/or a rear-facing camera. When the device 3000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 3010 is configured to output and/or input audio signals. For example, audio component 3010 includes a microphone (MIC) that is configured to receive external audio signals when device 3000 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 3004 or transmitted via communication component 3016. In some embodiments, the audio component 3010 also includes a speaker for outputting audio signals.

The I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 3014 includes one or more sensors for providing status assessment of various aspects of device 3000 . For example, the sensor component 3014 can detect the on/off state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000, the sensor component 3014 can also detect a change in the position of the device 3000 or a component of the device 3000, the user The presence or absence of contact with the device 3000, the orientation or acceleration/deceleration of the device 3000 and the temperature change of the device 3000. Sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 3016 is configured to facilitate wired or wireless communication between apparatus 3000 and other devices. Device 3000 may access wireless networks based on communication standards, such as Wi-Fi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 3016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 3000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which are executable by the processor 3020 of the apparatus 3000 to perform the above method. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Other implementations of the embodiments of the invention will readily suggest themselves to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the present invention that follow the general principles of the embodiments of the present invention and include those in the technical field not disclosed by the embodiments of the present disclosure Common knowledge or conventional technical means. The specification and examples are to be regarded as exemplary only, with the true scope and spirit of embodiments of the invention being indicated by the following claims.

It should be understood that the embodiments of the present invention are not limited to the precise structures described above and illustrated in the accompanying drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of embodiments of the present invention is limited only by the appended claims.

Claims

A data transmission method, wherein, applied to a first user equipment, the method includes:

receiving MBS information broadcast by the first type of network to the multicast broadcast service MBS group;

Determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein, the first user equipment and the second user equipment have a binding relationship, and the first user equipment belonging to the MBS group with the second user equipment.
The method of claim 1, wherein the method further comprises:

In response to the first user equipment and the second user equipment being connected through a second type of network, sending the first user equipment and/or the second user to the second user equipment through a second type of network Downlink data from the device.
The method of claim 2, wherein the method further comprises:

receiving, through the second type of network, the first request information sent by the second user equipment,

The sending, through the second type of network, the downlink data of the first user equipment and/or the second user equipment to the second user equipment includes:

Based on the first request information, the downlink data of the first user equipment and/or the second user equipment is sent to the second user equipment through the second type of network.
The method of claim 1, wherein the method further comprises:

In response to the first user equipment and the second user equipment being connected through the second type of network, receive the uplink data of the second user equipment, and send the uplink data of the second user equipment through the first type of network data.
The method of claim 4, wherein the method further comprises:

receiving, through the second type of network, the second request information sent by the second user equipment,

The receiving the uplink data of the second user equipment and sending the uplink data of the second user equipment through the first type of network includes:

Based on the second request information, the uplink data of the second user equipment is received, and the uplink data of the second user equipment is sent through the first type of network.
The method according to any one of claims 2 to 5, wherein the method further comprises:

receiving third request information sent by the second user equipment to the first user equipment through the second type of network;

According to the third request information, stop sending the determined downlink data of the first user equipment and/or the second user equipment to the second user equipment through the second type of network, and/or , stop receiving through the second type of network, and send the uplink data of the second user equipment through the first type of network.
A data transmission method, wherein, applied to a second user equipment, the method includes:

receiving MBS information broadcast by the first type of network to the multicast broadcast service MBS group;

Determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein, the first user equipment and the second user equipment have a binding relationship, and the first user equipment belonging to the MBS group with the second user equipment.
The method of claim 7, wherein the method further comprises:

In response to the first user equipment and the second user equipment being connected through a second type of network, receiving the first user equipment and/or the first user equipment and/or the first user equipment sent by the first user equipment through the second type of network. 2. Downlink data of the user equipment.
The method of claim 8, wherein the method further comprises:

sending first request information to the first user equipment, where the first request information is used to instruct the first user equipment to send the first user equipment to the second user equipment through the second type of network Downlink data of the user equipment and/or the second user equipment.
The method of claim 7, wherein the method further comprises:

In response to the first user equipment and the second user equipment being connected through a second type of network, the uplink data of the second user equipment is sent to the first user equipment through the second type of network.
The method of claim 10, wherein the method further comprises:

Send second request information to the first user equipment, where the second request information is used to instruct the first user equipment to send the uplink data of the second user equipment through the first type of network.
The method according to any one of claims 8 to 11, wherein the method further comprises:

The first type of network is registered in response to the first user equipment and the second user equipment being connected through a second type of network.
The method according to any one of claims 8 to 11, wherein the method further comprises:

In response to the signal quality parameter of the second type of network being lower than a preset threshold and the second user equipment not accessing the first type of network, registering with the first type of network and joining the MBS group.
The method of claim 13, wherein the method further comprises:

In response to the second user joining the MBS group, third request information is sent to the first user equipment through the second type of network, where the third request information is used to instruct the first user equipment to stop using the the second type of network sends the downlink data of the first user equipment and/or the second user equipment to the second user equipment, and/or stops receiving through the second type of network, and sends the downlink data through the second type of network The first type of network sends the uplink data of the second user equipment.
A data transmission apparatus, which is applied to a first user equipment, the apparatus comprises: a first receiving module and a first determining module, wherein,

The first receiving module is configured to receive the MBS information broadcast by the first type of network to the multicast broadcast service MBS group;

The first determining module is configured to determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein the first user equipment and the second user equipment have a binding association relationship, and the first user equipment and the second user equipment belong to the MBS group.
A data transmission apparatus, which is applied to a second user equipment, the apparatus comprising: a fifth receiving module and a second determining module, wherein,

The fifth receiving module is configured to receive the MBS information broadcast by the first type of network to the multicast broadcast service MBS group;

The second determining module is configured to determine downlink data of the first user equipment and/or the second user equipment according to the MBS information; wherein the first user equipment and the second user equipment have a binding association relationship, and the first user equipment and the second user equipment belong to the MBS group.
A communication device, comprising a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor executes the execution of claims 1 to 1 when the processor runs the executable program 6. Steps of the data transmission method described in any one of or 7 to 14.
A storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the steps of the data transmission method according to any one of claims 1 to 6 or 7 to 14 are implemented.