CN109716855B

CN109716855B - Signaling control transmission method and related product

Info

Publication number: CN109716855B
Application number: CN201780052209.4A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2020-08-04
Anticipated expiration: 2037-11-10
Also published as: CN109716855A; TW201927023A; TWI691219B; WO2019090727A1

Abstract

The embodiment of the application discloses a signaling control transmission method and a related product, comprising the following steps: the method comprises the steps that a first network device sends a first signaling to a second network device, the first signaling is used for indicating the second network device to update sending of a media access control (MAC CE) control unit signaling, and the first network device and the second network device provide dual-connection transmission for a terminal. The embodiment of the application is beneficial to improving the load calling consistency between the network equipment and the terminal in the dual-connection transmission network supporting the data copying transmission function.

Description

Signaling control transmission method and related product

Technical Field

The present application relates to the field of communications technologies, and in particular, to a signaling control transmission method and a related product.

Background

In a heterogeneous wireless system, when different types of base stations are cooperatively networked, since bandwidth resources and coverage of a single base station are limited, wireless resources of multiple cells or base stations are concentrated to provide services for users, and it is easier to meet the capacity requirements and coverage requirements of users, which is generally referred to as multiple connections.

In a Dual Connectivity (DC) transmission mode, a Protocol architecture for duplicating a Data transmission mode is shown in fig. 1A, and the Protocol architecture adopts a Protocol architecture for separately carrying a Split Bearer, for uplink and downlink, a Packet Data Control Protocol (PDCP) entity is located in a Cell Group (CG) base station (a MCG base station controlled by a master base station or a SCG base station controlled by a secondary base station), the PDCP entity duplicates PDCP Protocol Data Units (PDU) into two identical parts, for example, one PDCP PDU and one Duplicated PDCP PDU, which pass through R L C layer entities and MAC layer entities of different CG base stations, pass through a MAC layer entity and R L C layer entity corresponding to a terminal (downlink) or a base station (uplink), and finally pass through the PDCP layer entity, which monitors two PDCP layer entities as a same version, namely, one PDCP entity is discarded, and the other PDCP layer entity is located below the MCG base station, and if the two PDCP layer entities are connected as a Bearer, the upper layer entity and the upper layer entity is called a router entity, and the upper layer entity is connected as a router.

Disclosure of Invention

Embodiments of the present application provide a signaling control transmission method and a related product, which are beneficial to improving the consistency of scheduling bearers between a network device and a terminal in a dual-connectivity transmission network supporting a data replication transmission function.

In a first aspect, an embodiment of the present application provides a signaling control transmission method, including:

the method comprises the steps that a first network device sends a first signaling to a second network device, the first signaling is used for indicating the second network device to update sending of a media access control (MAC CE) control unit signaling, and the first network device and the second network device provide dual-connection transmission for a terminal.

In a second aspect, an embodiment of the present application provides a signaling control transmission method, including:

the method comprises the steps that a second network device receives a first signaling from a first network device, and the first network device and the second network device provide dual-connection transmission for a terminal;

and the second network equipment updates the transmission of the MAC CE signaling of the media access control layer control unit according to the first signaling.

In a third aspect, an embodiment of the present application provides a signaling control transmission method, including:

a terminal receives a Radio Resource Control (RRC) signaling from a first network device to update a target bearer of the terminal, wherein the RRC signaling is sent by the first network device to the terminal after receiving a confirmation message from a second network device, the confirmation message is sent by the second network device after receiving a first signaling from the first network device, the first signaling is used for indicating the second network device to update the sending of a media access control (MAC CE) layer control unit (MAC CE) signaling, and the first network device and the second network device provide dual-connection transmission for the terminal.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing a behavior of a first network device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding functions of the above-described method. Further, the network device may further include a transceiver for supporting communication between the network device and the terminal. Further, the network device may also include a memory for coupling with the processor that retains program instructions and data necessary for the network device.

In a fifth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing a behavior of a second network device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding functions of the above-described method. Further, the network device may further include a transceiver for supporting communication between the network device and the terminal. Further, the network device may also include a memory for coupling with the processor that retains program instructions and data necessary for the network device.

In a sixth aspect, an embodiment of the present application provides a terminal, where the terminal has a function of implementing a behavior of the terminal in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the terminal includes a processor configured to enable the terminal to perform the corresponding functions of the above-described method. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network device. Further, the terminal may also include a memory, coupled to the processor, that retains program instructions and data necessary for the terminal.

In a seventh aspect, an embodiment of the present application provides a network device, which is a first network device and includes a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any method of the first aspect of the embodiment of the present application.

In an eighth aspect, embodiments of the present application provide a network device, which is a second network device, and includes a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any of the methods of the second aspect of the embodiments of the present application.

In a ninth aspect, embodiments of the present application provide a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps in any of the methods of the third aspects of the embodiments of the present application.

In a tenth aspect, this application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps as described in any one of the methods of the first aspect of this application.

In an eleventh aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer execute some or all of the steps described in any one of the methods in the second aspect of the present application.

In a twelfth aspect, this application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps as described in any one of the methods in the third aspect of this application.

In a thirteenth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps as described in any of the methods of the first aspect, the second aspect, or the third aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the first network device sends the first signaling to the second network device, and because the first signaling is used to instruct the second network device to update sending of the MAC CE signaling, the first network device and the second network device provide dual connectivity transmission for the terminal. Therefore, the situation that the second network equipment and the terminal call bearer have errors due to the fact that the second network equipment sends the MAC CE signaling to the terminal under certain specific conditions can be avoided, and the consistency of the network equipment and the terminal call bearer in the dual-connection transmission network is improved.

Drawings

Reference will now be made in brief to the drawings that are needed in describing embodiments or prior art.

Fig. 1A is an example of a transmission architecture of a dual-connection copy transmission mode according to an embodiment of the present application;

fig. 1B is a network architecture diagram of a possible communication system provided by an embodiment of the present application;

fig. 2 is a flowchart illustrating a signaling control transmission method according to an embodiment of the present application;

fig. 3 is a flowchart illustrating a signaling control transmission method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a signaling control transmission method according to an embodiment of the present application;

fig. 5 is a flowchart illustrating a signaling control transmission method according to an embodiment of the present application;

fig. 6A is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 6B is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 6C is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 7 is a block diagram illustrating functional units of a network device according to an embodiment of the present disclosure;

fig. 8 is a block diagram illustrating functional units of a network device according to an embodiment of the present disclosure;

fig. 9 is a block diagram illustrating functional units of a terminal according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1B illustrates a wireless communication system that may operate in a high frequency band, not limited to a Long Term Evolution (L ong Term Evolution, L TE) system, but also a future-Evolution fifth-Generation mobile communication (5G) system, a New air interface (NR) system, a Machine to Machine communication (M2M) system, etc. As shown in FIG. 1B, the wireless communication system 100 may include one or more network devices 101, one or more terminals 103, and a core network 115.

Wherein:

the network device 101 may be a Base Station, which may be configured to communicate with one or more terminals and may also be configured to communicate with one or more Base stations having partial terminal functions (e.g., communication between a macro Base Station and a micro Base Station, such as an Access Point).

The terminals 103 may be distributed throughout the wireless communication system 100 and may be stationary or mobile. In some embodiments of the present application, the terminal 103 may be a mobile device, mobile station (mobile station), mobile unit (mobile unit), M2M terminal, wireless unit, remote unit, user agent, mobile client, or the like.

In particular, the network device 101 may be adapted to communicate with the terminal 103 via the wireless interface 105 under the control of a network device controller (not shown). In some embodiments, the network device controller may be part of the core network 115 or may be integrated into the network device 101. Specifically, the network device 101 may be configured to transmit control information or user data to the core network 115 through a backhaul (backhaul) interface 113 (e.g., an S1 interface). Specifically, the network device 101 and the network device 101 may also communicate with each other directly or indirectly through a backhaul (backhaul) interface 111 (such as an X2 interface).

It should be noted that the wireless communication system 100 shown in fig. 1B is only for more clearly illustrating the technical solution of the present application, and does not constitute a limitation to the present application, and as a person having ordinary skill in the art knows, the technical solution provided in the present application is also applicable to similar technical problems as the network architecture evolves and new service scenarios emerge.

The related art to which the present application relates is described below.

At present, in the fifth Generation mobile communication technology (5th-Generation, 5G) and the New air interface (New Radio, NR) system, it is proposed that a scheme for supporting Data replication transmission for carrier aggregation technology utilizes a Data replication function of a Packet Data Convergence Protocol (PDCP) layer entity to enable replicated PDCP Protocol Data units (PDCP PDU) to be respectively transmitted to two Radio link layer Control Protocol (Radio L ink Control, R L C) layer entities (two R L C layer entities respectively have different logical channels), and finally, the replicated PDCP PDU can be guaranteed to be capable of transmitting Data on aggregated carriers of different physical layers.

However, in a DC scenario, since both the Master Node (MN) and the Slave Node (SN) may send the MAC CE, when a data copy bearer is established/released, the format of the MAC CE may be affected. If a Master Cell group bearer (MCG bearer) is in a data replication mode, a corresponding bit should appear on the MAC CE, otherwise, no bit should appear, which is a change in the format of the MAC CE. The problem here is that for MCG bearer, it is not known whether the MAC CE format should be changed, since the SN may not know the presence or absence of MCG bearer, independently of the SN. Considering that RRC signaling for bearer establishment/release is sent to a User Equipment (UE) by a MN and the sending of the signaling requires time, how the SN controls the sending of the MAC CE to avoid the misunderstanding of the UE is a problem to be solved. The wrong understanding here is:

(1) the RRC signaling for bearer establishment/release sent by the MN to the UE has not been correctly received, and the SN has sent the MAC CE according to the new format.

(2) The RRC signaling for bearer establishment/release sent by the MN to the UE has been correctly received and the SN still sends the MAC CE in the old format.

In view of the above problems, the embodiments of the present application propose the following embodiments, which are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a signaling control transmission method provided in an embodiment of the present application, applied to the above exemplary communication system, the method including:

in part 201, a first network device sends a first signaling to a second network device, where the first signaling is used to instruct the second network device to update sending of a MAC CE signaling of a MAC control layer control element, and the first network device and the second network device provide dual connectivity transmission for a terminal.

It can be seen that, in this embodiment of the present application, a first network device sends a first signaling to a second network device, and because the first signaling is used to instruct the second network device to update sending of a MAC CE signaling, the first network device and the second network device provide dual connectivity transmission for a terminal. Therefore, the situation that the second network equipment and the terminal call bearer have errors due to the fact that the second network equipment sends the MAC CE signaling to the terminal under certain specific conditions can be avoided, and the consistency of the network equipment and the terminal call bearer in the dual-connection transmission network is improved.

In one possible example, the method further comprises: the first network equipment sends Radio Resource Control (RRC) signaling to the terminal to update a target bearer of the terminal; and the first network equipment sends a second signaling to the second network equipment, wherein the second signaling is used for informing the second network equipment to send the updated MAC CE signaling.

In a specific implementation, after the target bearer update is completed, the first network device sends the second signaling to the second network device, and at this time, the terminal has completed the update of the format of the MAC CE.

As can be seen, in this example, after the first network device completes updating the target bearer of the terminal, the first network device may timely notify the second network device to resume sending the updated MAC CE, so as to avoid that the second network device suspends from interacting with the terminal for a long time to affect the data transmission efficiency, which is beneficial to improving the data transmission efficiency and stability between the second network device and the terminal in the dual-connection transmission system.

In one possible example, the first signaling is used to instruct the second network device to cancel sending MAC CE signaling to the terminal and to update a format of MAC CE signaling.

As can be seen, in this example, the first signaling can indicate that the second network device suspends sending the MAC CE signaling in the time period when the target bearer is updated, and update the format of the MAC CE in time, so as to ensure consistency with the terminal scheduling bearer when subsequent transmission resumes.

In one possible example, the target bearer supports a data replication function.

In one possible example, the first signaling is used to perform any one of the following update operations for a target bearer of the terminal: bearer establishment, bearer release and bearer modification.

In one possible example, the updated target bearer of the terminal indicated by the first signaling comprises at least one of: a Slave Cell Group bearer (SCG bearer), a master Cell Group separation bearer (MCGsplit bearer), and a Slave Cell Group separation bearer (SCG split bearer).

In one possible example, the updated target bearer of the terminal indicated by the first signaling comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCG split bearer, the auxiliary cell group separately bears SCG split bearer and the main cell group bears MCG bearer.

Referring to fig. 3, in accordance with the embodiment shown in fig. 2, fig. 3 is another signaling control transmission method provided in the present application, which is applied to the above exemplary communication system, and the method includes:

in part 301, a second network device receives a first signaling from a first network device, the first network device and the second network device providing dual connectivity for the terminal.

At element 302, the second network device updates transmission of MAC CE signaling according to the first signaling.

It can be seen that, in this embodiment of the present application, the second network device first receives the first signaling from the first network device, and then, the second network device updates the transmission of the MAC CE signaling according to the first signaling, and the first network device and the second network device provide dual connectivity transmission for the terminal. Therefore, the situation that the second network equipment and the terminal call bearer have errors due to the fact that the second network equipment sends the MACCE signaling to the terminal under certain specific conditions can be avoided, and the consistency of the network equipment and the terminal call bearer in the dual-connection transmission network is improved.

In one possible example, the method further comprises: the second network device receiving second signaling from the first network device; and the second network equipment sends the updated MAC CE signaling according to the second signaling.

In one possible example, before the second network device receives the second signaling from the first network device, the method further comprises: the second network device sends an acknowledgement message to the first network device.

In one possible example, the second signaling is sent to the first network device after the first network device sends radio resource control, RRC, signaling to the terminal to update a target bearer of the terminal.

In one possible example, the method further comprises: the second network equipment receives a third signaling from the terminal; and the second network equipment sends the updated MAC CE signaling to the terminal.

As can be seen, in this example, the second network device may resume sending the updated MAC CE signaling by receiving the third signaling from the terminal, so as to ensure consistency of scheduling bearers between the second network device and the terminal.

In a possible example, the third signaling is used to instruct the second network device to receive a random access request initiated by the terminal, and send updated MAC CE signaling to the terminal after successful completion.

In one possible example, the updating, by the second network device, the transmission of the MAC CE signaling according to the first signaling includes: and the second network equipment sends the MAC CE signaling to the terminal according to the first signaling cancellation, and updates the format of the MAC CE signaling.

In one possible example, the updated target bearer of the terminal indicated by the first signaling comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCG split bearer, and the auxiliary cell group separately bears SCG split bearer.

Referring to fig. 4, in accordance with the embodiments shown in fig. 2 and fig. 3, fig. 4 is a block diagram of another signaling control transmission method provided in the embodiment of the present application, applied to the above exemplary communication system, where the method includes:

in part 401, a terminal receives radio resource control, RRC, signaling from a first network device to update a target bearer of the terminal, where the RRC signaling is sent by the first network device to the terminal after receiving an acknowledgement message from a second network device, the acknowledgement message is sent by the second network device after receiving a first signaling from the first network device, the first signaling is used to instruct the second network device to update sending of a media access control layer control element, MAC CE, signaling, and the first network device and the second network device provide dual connectivity transmission for the terminal.

It can be seen that, in the embodiment of the present application, when the terminal receives the RRC signaling sent by the first network device to update the target bearer, the first network device may notify the second network device through the first signaling to update the sending of the MAC CE signaling in the target bearer in the period, so that the situation that the MAC CE signaling is sent to the terminal by the second network device in the period when the target bearer is updated, which causes inconsistency in bearer scheduling is avoided, and it is beneficial to improve the consistency of scheduling bearers between the network device and the terminal in the dual-connectivity transmission system.

In one possible example, the method further comprises: and the terminal receives the updated MAC CE signaling sent by the second network equipment.

In one possible example, the updated MAC CE signaling is sent by the second network device after receiving the second signaling from the first network device.

In one possible example, before the terminal receives the updated MAC CE signaling sent by the second network device, the method further includes: and the terminal sends a third signaling to the second network equipment, wherein the third signaling is used for indicating the second network equipment to receive the random access request initiated by the terminal and sending the updated MAC CE signaling to the terminal after the random access request is successfully completed.

Referring to fig. 5, in accordance with the embodiments of fig. 2 to fig. 4, fig. 5 is a signaling control transmission method provided in the present application, applied to the above exemplary communication system, the method includes:

in part 501, a first network device sends a first signaling to a second network device, where the first signaling is used to instruct the second network device to update sending of a MAC CE signaling of a MAC control layer control element, and the first network device and the second network device provide dual connectivity transmission for a terminal.

At element 502, a second network device receives a first signaling from a first network device, the first network device and the second network device providing dual connectivity for the terminal;

at part 503, the second network device updates the transmission of MAC CE signaling according to the first signaling.

In part 504, the first network device sends radio resource control, RRC, signaling to the terminal to update a target bearer of the terminal.

In part 505, a terminal receives radio resource control, RRC, signaling from a first network device to update a target bearer of the terminal, where the RRC signaling is sent by the first network device to the terminal after receiving an acknowledgement message from a second network device, the acknowledgement message is sent by the second network device after receiving a first signaling from the first network device, the first signaling is used to instruct the second network device to update sending of a media access control layer control element, MAC CE, signaling, and the first network device and the second network device provide dual connectivity transmission for the terminal.

At part 506A, the first network device sends a second signaling to the second network device, where the second signaling is used to notify the second network device to send the updated MAC CE signaling.

At part 507A, the second network device receives second signaling from the first network device.

At part 508, the second network device sends the updated MAC CE signaling according to the second signaling.

In addition, in addition to triggering and sending the updated MAC CE signaling through the above steps 506A and 507A, the second network device may also be triggered through the following steps, where the steps specifically include:

at part 506B, the terminal sends a third signaling to the second network device, where the third signaling is used to instruct the second network device to receive the random access request initiated by the terminal, and send the updated MAC CE signaling to the terminal after successful completion.

The second network device receives a third signaling from the terminal, at 507B.

In part 509, the terminal receives the updated MAC CE signaling from the second network device, and determines an activation status of a target bearer according to the MAC CE signaling.

It can be seen that, in the embodiment of the present application, because the second network device does not see the process of the first network device updating the target bearer of the terminal in the dual connectivity transmission system, and the update of the target bearer changes the format of the MCA CE, during the update period of the target bearer, the second network device is not suitable to continue sending the MAC CE signaling to the terminal, so as to avoid misunderstanding by the terminal, based on which, the first network device sends the first signaling to the second network device to notify the second network device in time to update the MAC CE, and waits until the first network device completes the update of the target bearer and sends the second signaling, the second network device sends the updated MAC CE to the terminal, and since the update of the target bearer is completed, the terminal side already knows the update condition of the MAC CE, when the second network device sends the updated MAC CE, the terminal can already synchronously identify the bearer scheduled by the second network device, therefore, the consistency of the network equipment and the terminal scheduling bearer in the dual-connection transmission network is ensured.

Consistent with the above embodiments, please refer to fig. 6A, fig. 6A is a schematic structural diagram of a network device provided in an embodiment of the present application, where the network device is a first network device, and as shown in the figure, the network device includes a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the following steps;

and sending a first signaling to a second network device, wherein the first signaling is used for indicating the second network device to update the sending of a media access control (MAC CE) Control Element (CE) signaling, and the first network device and the second network device provide dual-connection transmission for a terminal.

In one possible example, the program further includes instructions for: sending Radio Resource Control (RRC) signaling to the terminal to update a target bearer of the terminal; and sending a second signaling to the second network device, where the second signaling is used to notify the second network device to send the updated MAC CE signaling.

Consistent with the above embodiments, please refer to fig. 6B, where fig. 6B is a schematic structural diagram of a network device provided in an embodiment of the present application, where the network device is a second network device, and as shown in the figure, the network device includes a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the following steps;

receiving a first signaling from a first network device, wherein the first network device and the second network device provide dual connectivity transmission for the terminal.

And updating the transmission of the MAC CE signaling of the control unit of the media access control layer according to the first signaling.

In one possible example, the program further includes instructions for: receiving second signaling from the first network device; and sending the updated MAC CE signaling according to the second signaling.

In one possible example, the program further includes instructions for: sending an acknowledgement message to the first network device prior to the receiving of the second signaling from the first network device.

In one possible example, the program further includes instructions for: receiving a third signaling from the terminal; and sending the updated MAC CE signaling to the terminal.

In one possible example, in terms of the updating of the transmission of the MAC CE signaling according to the first signaling, the instructions in the program are specifically configured to perform the following operations: and sending the MAC CE signaling to the terminal according to the first signaling cancellation, and updating the format of the MAC CE signaling.

In accordance with the foregoing embodiments, please refer to fig. 6C, where fig. 6C is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in the figure, the terminal includes a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the following steps;

receiving a Radio Resource Control (RRC) signaling from a first network device to update a target bearer of the terminal, wherein the RRC signaling is sent by the first network device to the terminal after receiving a confirmation message from a second network device, the confirmation message is sent by the second network device after receiving a first signaling from the first network device, the first signaling is used for indicating the second network device to update the sending of a media access control (MAC CE) control element (MAC CE) signaling, and the first network device and the second network device provide dual connectivity transmission for the terminal.

In one possible example, the program further includes instructions for: and receiving the updated MAC CE signaling sent by the second network equipment.

In one possible example, the program further includes instructions for: and before receiving the updated MAC CE signaling sent by the second network equipment, sending a third signaling to the second network equipment, wherein the third signaling is used for indicating the second network equipment to receive a random access request initiated by the terminal and sending the updated MAC CE signaling to the terminal after successful completion.

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

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

In case of an integrated unit, fig. 7 shows a block diagram of a possible functional unit of the network device, which is a first network device, involved in the above-described embodiments. The network device 700 includes: a processing unit 702 and a communication unit 703. Processing unit 702 is configured to control and manage actions of the network device, e.g., processing unit 702 is configured to support the network device to perform step 201 in fig. 2, steps 501, 504/506 in fig. 5, and/or other processes for the techniques described herein. The communication unit 703 is used to support communication between the network device and other devices, for example, a terminal shown in fig. 6C. The network device may further comprise a storage unit 701 for storing program codes and data of the network device.

The processing unit 702 may be a processor or a controller, the communication unit 703 may be a transceiver, a transceiver circuit, a radio frequency chip, or the like, and the storage unit 701 may be a memory.

The processing unit 702 is configured to send a first signaling to a second network device through the communication unit 703, where the first signaling is used to instruct the second network device to update sending of a MAC CE signaling of a MAC control layer control element, and the first network device and the second network device provide dual connectivity transmission for a terminal.

In one possible example, the processing unit 703 is further configured to: sending a Radio Resource Control (RRC) signaling to the terminal through the communication unit 703 to update a target bearer of the terminal; and sending a second signaling to the second network device through the communication unit 703, where the second signaling is used to notify the second network device to send the updated MAC CE signaling.

When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and the storage unit 701 is a memory, the network device according to the embodiment of the present application may be the network device shown in fig. 6A.

In case of an integrated unit, fig. 8 shows a block diagram of a possible functional unit of the network device, which is a second network device, involved in the above-described embodiment. The network device 800 includes: a processing unit 802 and a communication unit 803. Processing unit 802 is configured to control and manage actions of the network device, e.g., processing unit 802 is configured to support the network device to perform steps 301 and 302 in fig. 3, steps 502, 503, 507, 508 in fig. 5, and/or other processes for the techniques described herein. The communication unit 803 is used to support communication between the network device and other devices, for example, a terminal shown in fig. 6C. The network device may also comprise a storage unit 801 for storing program codes and data of the network device.

The processing unit 802 may be a processor or a controller, the communication unit 803 may be a transceiver, a transceiver circuit, a radio frequency chip, or the like, and the storage unit 801 may be a memory.

Wherein the processing unit 802 is configured to receive a first signaling from a first network device through the communication unit 803, and the first network device and the second network device provide dual connectivity transmission for the terminal. And updating the transmission of the MAC CE signaling of the control unit of the media access control layer according to the first signaling.

In one possible example, the processing unit 802 is further configured to: receiving, by the communication unit, second signaling from the first network device; and transmits the updated MAC CE signaling through the communication unit 803 according to the second signaling.

In one possible example, the processing unit 802 is further configured to send an acknowledgement message to the first network device through the communication unit 803 before receiving the second signaling from the first network device through the communication unit 803.

In one possible example, the processing unit 802 is further configured to receive a third signaling from the terminal through the communication unit 803; and sending the updated MAC CE signaling to the terminal through the communication unit.

In a possible example, in terms of the updating of the transmission of the MAC CE signaling according to the first signaling, the processing unit 802 is specifically configured to: and sending the MAC CE signaling to the terminal according to the first signaling cancellation, and updating the format of the MAC CE signaling.

When the processing unit 802 is a processor, the communication unit 803 is a communication interface, and the storage unit 801 is a memory, the network device according to the embodiment of the present application may be the network device shown in fig. 6B.

In case of integrated units, fig. 9 shows a block diagram of a possible functional unit composition of the terminal involved in the above embodiments. The terminal 900 includes: a processing unit 902 and a communication unit 903. Processing unit 902 is configured to control and manage actions of the terminal, e.g., processing unit 902 is configured to enable the terminal to perform step 401 in fig. 4, steps 505, 509 in fig. 5, and/or other processes for the techniques described herein. The communication unit 903 is used to support communication between the terminal and other devices, for example, communication with a network device shown in fig. 6A or fig. 6B. The terminal may further include a storage unit 901 for storing program codes and data of the terminal.

The processing Unit 902 may be a Processor or a controller, such as a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 903 may be a transceiver, a transmitting and receiving circuit, etc., and the storage unit 901 may be a memory.

The processing unit 902 is configured to receive, through the communication unit 903, a radio resource control RRC signaling from a first network device to update a target bearer of the terminal, where the RRC signaling is sent by the first network device to the terminal after receiving a confirmation message from a second network device, the confirmation message is sent by the second network device after receiving a first signaling from the first network device, the first signaling is used to instruct the second network device to update sending of a media access control layer control element MAC CE signaling, and the first network device and the second network device provide dual connectivity transmission for the terminal.

In one possible example, the processing unit 902 is further configured to receive, by the communication unit 903, the updated MAC CE signaling sent by the second network device.

In a possible example, before receiving, by the communication unit 903, the updated MAC CE signaling sent by the second network device, the processing unit 902 is further configured to send, by the communication unit 903, a third signaling to the second network device, where the third signaling is used to instruct the second network device to receive a random access request initiated by the terminal, and send, by the communication unit 903, the updated MAC CE signaling to the terminal after successful completion.

When the processing unit 902 is a processor, the communication unit 903 is a communication interface, and the storage unit 901 is a memory, the terminal according to the embodiment of the present application may be the terminal shown in fig. 6C.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the terminal in the above method embodiment.

The present application also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the network device in the above method embodiments.

Embodiments of the present application also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the terminal in the above method embodiments. The computer program product may be a software installation package.

Embodiments of the present application also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the network device in the method. The computer program product may be a software installation package.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.

It will be appreciated by those skilled in the art that in one or more of the foregoing examples, the functionality described in the embodiments herein may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof, and when implemented using software, may be implemented, in whole or in part, in a computer program product including one or more computer instructions that, when loaded and executed on a computer, cause, in whole or in part, the processes or functions described in accordance with the embodiments herein.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present application in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

1. A method for signaling control transmission, comprising:

when the data copy bearer is updated, a first network device sends a first signaling to a second network device, wherein the first signaling is used for indicating the second network device to update the sending of a media access control (MAC CE) control unit (MAC CE) signaling, and the first network device and the second network device provide dual-connection transmission for a terminal, wherein when the data copy bearer is updated, the MAC CE format is changed;

when receiving a confirmation message sent by the second network device, the first network device sends a Radio Resource Control (RRC) signaling to the terminal to update a target bearer of the terminal, wherein the target bearer supports a data replication function;

and the first network equipment sends a second signaling to the second network equipment, wherein the second signaling is used for informing the second network equipment to send the updated MAC CE signaling, and the second signaling is sent after the first network equipment completes the update of the target bearer of the terminal.

2. The method of claim 1, wherein the first signaling is used to instruct the second network device to cancel sending MAC CE signaling to the terminal and to update a format of MAC CE signaling.

3. The method according to any of claims 1-2, wherein the first signaling is used to perform any of the following update operations for the target bearer of the terminal: bearer establishment, bearer release and bearer modification.

4. The method according to any of claims 1-2, wherein the target bearer of the terminal updated by the first signaling indication comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCGPLit bearer and the auxiliary cell group separately bears SCG split bearer.

5. The method according to any of claims 1-2, wherein the target bearer of the terminal updated by the first signaling indication comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCGplit bearer, the auxiliary cell group separately bears SCG split bearer and the main cell group bears MCG bearer.

6. A method for signaling control transmission, comprising:

the method comprises the steps that a second network device receives a first signaling from a first network device, the first network device and the second network device provide dual-connection transmission for a terminal, the first signaling is sent when a data copy bearer is updated, and the MAC CE format is changed when the data copy bearer is updated;

the second network equipment updates the transmission of the MAC CE signaling of a media access control layer control unit according to the first signaling;

the second network device sends a confirmation message to the first network device, wherein the confirmation message is used for indicating the first network device to send RRC signaling to the terminal so as to update a target bearer of the terminal, and the target bearer supports a data copying function;

the second network equipment receives a second signaling from the first network equipment, wherein the second signaling is sent by the first network equipment after the target bearer of the terminal is updated;

and the second network equipment sends the updated MAC CE signaling according to the second signaling.

7. The method of claim 6, wherein the second signaling is sent to the first network device after the first network device sends Radio Resource Control (RRC) signaling to the terminal to update a target bearer of the terminal.

8. The method of claim 6, further comprising:

the second network equipment receives a third signaling from the terminal;

and the second network equipment sends the updated MAC CE signaling to the terminal.

9. The method of claim 8, wherein the third signaling is used to instruct the second network device to receive the random access request initiated by the terminal, and send updated MAC CE signaling to the terminal after successful completion.

10. The method according to any of claims 6-9, wherein the second network device updating the transmission of medium access control layer control element, MAC CE, signaling according to the first signaling comprises:

and the second network equipment sends the MAC CE signaling to the terminal according to the first signaling cancellation, and updates the format of the MAC CE signaling.

11. The method according to any of claims 6-9, wherein the first signaling is configured to perform any of the following update operations for a target bearer of the terminal: bearer establishment, bearer release and bearer modification.

12. The method according to any of claims 6-9, wherein the target bearer of the terminal updated by the first signaling indication comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCGPLit bearer and the auxiliary cell group separately bears SCG split bearer.

13. The method according to any of claims 6-9, wherein the target bearer of the terminal updated by the first signaling indication comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCGplit bearer, the auxiliary cell group separately bears SCG split bearer and the main cell group bears MCG bearer.

14. A method for signaling control transmission, comprising:

a terminal receives Radio Resource Control (RRC) signaling from first network equipment to update a target bearer of the terminal, wherein the RRC signaling is sent to the terminal after the first network equipment receives a confirmation message from second network equipment, the confirmation message is sent after the second network equipment receives first signaling from the first network equipment, the first signaling is sent when a data copy bearer is updated and is used for indicating the second network equipment to update the sending of a media access control (MAC CE) control unit (MAC CE) signaling, and the first network equipment and the second network equipment provide dual-connection transmission for the terminal, wherein when the data copy bearer is updated, the MAC CE format changes;

the terminal receives an updated MAC CE signaling sent by the second network device, wherein the updated MAC CE signaling is sent after the second network device receives a second signaling from the first network device, the second signaling is sent after the first network device completes updating of a target bearer of the terminal, and the target bearer supports a data replication function.

15. The method of claim 14, wherein before the terminal receives the updated MAC CE signaling sent by the second network device, the method further comprises:

and the terminal sends a third signaling to the second network equipment, wherein the third signaling is used for indicating the second network equipment to receive the random access request initiated by the terminal and sending the updated MAC CE signaling to the terminal after the random access request is successfully completed.

16. The method according to any of claims 14 or 15, wherein the first signaling is configured to perform any of the following update operations for a target bearer of the terminal: bearer establishment, bearer release and bearer modification.

17. The method according to claim 14 or 15, wherein the target bearer of the terminal updated by the first signaling indication comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCG split bearer, and the auxiliary cell group separately bears SCG split bearer.

18. The method according to claim 14 or 15, wherein the target bearer of the terminal updated by the first signaling indication comprises at least one of: the auxiliary cell group bears SCG bearer, the main cell group separately bears MCG split bearer, the auxiliary cell group separately bears SCG split bearer and the main cell group bears MCG bearer.

19. A network device, characterized in that the network device is a first network device comprising a processing unit and a communication unit,

the processing unit is configured to send a first signaling to a second network device through the communication unit when the data copy bearer is updated, where the first signaling is used to instruct the second network device to update sending of a MAC CE signaling of a media access control layer control unit, and the first network device and the second network device provide dual-connection transmission for a terminal, where a MAC CE format changes when the data copy bearer is updated;

the processing unit is further configured to send a radio resource control RRC signaling to the terminal through the communication unit to update a target bearer of the terminal when receiving a confirmation message sent by the second network device, where the target bearer supports a data copy function; and sending a second signaling to the second network device through the communication unit, where the second signaling is used to notify the second network device to send an updated MAC CE signaling, and the second signaling is sent by the first network device after the update of the target bearer of the terminal is completed.

20. A network device, characterized in that the network device is a second network device comprising a processing unit and a communication unit,

the processing unit is configured to receive a first signaling from a first network device through the communication unit, where the first network device and the second network device provide dual connectivity transmission for a terminal, the first signaling is sent when a data replication bearer is updated, and a MAC CE format changes when the data replication bearer is updated; updating the transmission of the MAC CE signaling of a control unit of a media access control layer according to the first signaling; sending a confirmation message to the first network equipment, wherein the confirmation message is used for indicating the first network equipment to send RRC signaling to the terminal so as to update a target bearer of the terminal, and the target bearer supports a data replication function;

the processing unit is further configured to receive, by the communication unit, a second signaling from the first network device, where the second signaling is sent by the first network device after the update of the target bearer of the terminal is completed; and sending the updated MAC CE signaling through the communication unit according to the second signaling.

21. A terminal, characterized in that it comprises a processing unit and a communication unit,

the processing unit is configured to receive, by the communication unit, a radio resource control RRC signaling from a first network device to update a target bearer of the terminal, where the RRC signaling is sent by the first network device to the terminal after receiving an acknowledgement message from a second network device, the acknowledgement message is sent by the second network device after receiving a first signaling from the first network device, the first signaling is sent when a data copy bearer is updated and is used to instruct the second network device to update sending of a media access control layer control element MAC CE signaling, and the first network device and the second network device provide dual-connectivity transmission for the terminal, where a MAC CE format changes when the data copy bearer is updated;

the processing unit is further configured to receive, by the communication unit, an updated MAC CE signaling sent by the second network device, where the updated MAC CE signaling is sent after the second network device receives a second signaling from the first network device, the second signaling is sent after the first network device completes updating of a target bearer of the terminal, and the target bearer supports a data copy function.

22. A network device, wherein the network device is a first network device, comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-6.

23. A network device, wherein the network device is a second network device, comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 6-13.

24. A terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps of the method of any of claims 14-18.

25. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-5.

26. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 6-13.

27. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 14-18.