TW201927023A - Method and related products of signaling control transmission - Google Patents

Abstract

The present disclosure disclosed a method and related product of signaling control transmission, which includes: the first network device sends the first signaling to the second network device, where the first signaling is used to indicate that the second network device updates the media access control layer to control the transmission of unit MAC CE signaling, the first network device and the second network device providing dual connectivity transmission for the terminal. The embodiment of the present disclosure is advantageous for improving the consistency of the calling bearer between the network device and the terminal in the dual-connection transmission network supporting the data replication transmission function.

Description

Signal control transmission method and related products

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

In heterogeneous wireless systems, when different types of base stations are cooperatively networked, because the bandwidth resources and coverage of a single base station are limited, it is easier to concentrate the wireless resources of multiple areas or base stations to provide services for users. To meet the user's capacity requirements and coverage requirements, this method is often referred to as multi-connection. In the Long Term Evolution (LTE) network system, commonly used multi-connection methods include carrier aggregation, coordinated multi-point (CoMP), and dual connectivity.

In the Dual Connectivity (DC) transmission mode, the protocol structure of the replication data transmission mode is as shown in FIG. 1A, and the protocol architecture adopts a protocol architecture for separating the bearer bearer; for the uplink and downlink, the packet data control protocol The (Packet Data Convergence Protocol, PDCP) entity is located in a certain service area group (Cell Group, CG) base station (the service base group MCG base station controlled by the primary base station or the service area group SCG base station controlled by the secondary base station). The PDCP entity copies the PDCP Protocol Data Unit (PDU) into the same two copies, such as one PDCP PDU and one Duplicated PDCP PDU. The two PDCP PDUs pass through the RLC layer entity and the MAC layer entity of different CG base stations. Then, through the empty intermediate plane, the corresponding MAC layer entity and the RLC layer entity of the terminal (downlink) or the base station (uplink) are finally aggregated to the PDCP layer entity, and the PDCP layer entity detects that the two PDCP PDUs are in the same version, that is, discarded. One of them will be submitted to the higher-order entity. The one bearer that connects the two RLC entities and the MAC entity respectively is called a split bearer. If the PDCP entity is located at the MCG base station, it is an MCG split bearer. If the PDCP entity is located at the SCG base station, it is an SCG split bearer.

The embodiment of the present application provides a signal control transmission method and related products, which are beneficial to improving the consistency of scheduling bearers between network devices and terminals in a dual-connection transmission network supporting the data replication transmission function.

In a first aspect, the embodiment of the present application provides a signal control transmission method, including: the first network device sends a first signal to a second network device, where the first signal is used to instruct the second network device to update the media. The access control layer controls the transmission of the MAC CE signal, and the first network device and the second network device provide dual connectivity for the terminal.

In a second aspect, the embodiment of the present application provides a signal control transmission method, including: a second network device receiving a first signal from a first network device, where the first network device and the second network device are The terminal provides dual connectivity transmission; the second network device updates the transmission of the media access control layer control unit MAC CE signal according to the first signal.

In a possible implementation, before the second network device receives the second signal from the first network device, the method further includes: sending, by the second network device, the first network device Confirmation message.

In a possible implementation manner, the method further includes: the second network device receiving a third signal from the terminal; and the second network device sending the updated MAC CE signal to the terminal.

In a possible implementation manner, the third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE signal to the terminal after the successful completion. .

In a possible implementation manner, the second network device, according to the first signal, updates the sending of the media access control layer control unit MAC CE signal, including: the second network device according to the first signal The MAC CE signal is sent to the terminal and the format of the MAC CE signal is updated.

In a third aspect, the embodiment of the present application provides a signal control transmission method, including: receiving, by a terminal, a radio resource control RRC signal from a first network device, to update a target bearer of the terminal, where the RRC signal is the first network After receiving the acknowledgement message from the second network device, the device sends the acknowledgement message to the terminal, and the acknowledgement message is sent by the second network device after receiving the first signal from the first network device. The first signal is used to instruct the second network device to update the sending of the media access control layer control unit MAC CE signal, and the first network device and the second network device provide dual connectivity for the terminal. transmission.

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

In a sixth aspect, an embodiment of the present application provides a terminal, where the terminal has a function of implementing behavior of a terminal in the foregoing method design. The functions can be implemented by hardware or by executing corresponding software through hardware. The hardware or software includes one or more modules corresponding to the functions described above. In one possible design, the terminal includes a processor configured to support the terminal in performing the corresponding functions of the above methods. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network device. Further, the terminal may further include a memory for coupling with the processor, which stores program instructions and materials necessary for the terminal.

In a seventh aspect, the embodiment of the present application provides a network device, where the network device is a first network device, including a processor, a memory, a transceiver, and one or more programs, where the one or more programs Stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the steps in any of the methods of the first aspect of the embodiments of the present application.

In an eighth aspect, the embodiment of the present application provides a network device, where the network device is a second network device, including a processor, a memory, a transceiver, and one or more programs, where the one or more programs Stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the steps of any of the methods of the second aspect of the embodiments of the present application.

In a ninth aspect, the embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory, and are configured by Executed by the processor, the program includes instructions for performing the steps in any of the methods of the third aspect of the embodiments of the present application.

In a tenth aspect, the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the embodiment as in the present application. Some or all of the steps described in any of the methods of the first aspect.

In an eleventh aspect, the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application. Some or all of the steps described in any of the methods of the second aspect.

In a twelfth aspect, the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application. Some or all of the steps described in any of the methods of the third aspect.

A thirteenth aspect, the embodiment of 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, the computer program being operable to cause the computer to execute Some or all of the steps described in the first aspect or the second aspect or the third aspect of the embodiments of the present application. The computer program product can be a software installation package.

It can be seen that, in the embodiment of the present application, the first network device sends the first signal to the second network device, where the first signal is used to instruct the second network device to update the sending of the MAC CE signal, the first network device And the second network device provides dual connectivity transmission for the terminal. Therefore, in some specific cases, the second network device sends a MAC CE signal to the terminal, which causes an error in the second network device and the terminal to call the bearer, which is beneficial to improving the network device and the terminal in the dual-connection transmission network. Call the consistency of the bearer.

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 to which the present application relates. The wireless communication system can work in a high frequency band, is not limited to a Long Term Evolution (LTE) system, and may be a fifth generation mobile communication (5th generation, 5G) system and a new air intermediary plane in the future ( NR) System, Machine to Machine (M2M) system, etc. As shown in FIG. 1B, the wireless communication system 100 can include one or more network devices 101, one or more terminals 103, and a core network 115. The network device 101 can be a base station, and the base station can be used for communication with one or more terminals, or can be used for communication with one or more base stations having partial terminal functions (such as a macro base station and a micro base station). Base station, such as access points, communication between). The base station may be a Base Transceiver Station (BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or may be an evolved node in an LTE system ( Evolutional Node B, eNB), and base stations in 5G systems, New Space Intermediary (NR) systems. In addition, the base station may also be an Access Point (AP), a TransNode (Trans TRP), a Central Unit (CU) or other network entity, and may include some of the functions of the above network entities. Or all features.

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

Specifically, the network device 101 can be configured to communicate with the terminal 103 through 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 can be configured to transmit control information or user data to the core network 115 through a blackhaul interface 113 (eg, an S1 interface). Specifically, the network device 101 and the network device 101 can also communicate with each other directly or indirectly through a blackhaul interface 111 (such as an X2 interface).

It should be noted that the wireless communication system 100 shown in FIG. 1B is only for the purpose of more clearly explaining the technical solutions of the present application, and does not constitute a limitation of the present application. Those skilled in the art may know that with the evolution of the network architecture and new The appearance of the business scenario, the technical solution provided by the present application is equally applicable to similar technical problems.

The related art related to the present application will be described below.

At present, in the fifth-generation mobile communication technology (5th-Generation, 5G) and the New Radio (NR) system, it is proposed to use the packet data aggregation protocol for the carrier aggregation technology to support data duplication (Data Duplication) scheme ( The Copy Data function of the Packet Data Convergence Protocol (PDCP) layer entity enables the copied PDCP Protocol Data Unit (PDCP PDU) to be transmitted to two Radio Link Control (RLC) layer entities respectively. (The two RLC layer entities have different logical channels respectively), and finally ensure that the copied PDCP PDU can transmit data on different physical layer aggregate carriers.

However, in the DC scenario, the master node (MN) and the slave node (SN) can send MAC CEs. When a data replication bearer is established/released, it affects the format of the MAC CE. If a master cell Grpup bearer (MCG bearer) is in the data replication mode, a corresponding bit bit should appear on the MAC CE, otherwise it is not. This is the MAC CE format change. The problem here is that for the MCG bearer, since it is independent of the SN, the SN may not know the presence or absence of the MCG bearer, so it is not known whether the MAC CE format should be changed. Considering that the RRC signal of the bearer setup/release is sent by the MN to the User Equipment (UE), and the transmission of the signal takes time, how the SN controls the transmission of the MAC CE to avoid misunderstanding of the UE is required to be solved. problem. The misunderstanding here is: (1) The RRC signal of the bearer setup/release sent by the MN to the UE has not been correctly received, and the SN has already sent the MAC CE according to the new format. (2) The RRC signal of the bearer setup/release sent by the MN to the UE has been correctly received, and the SN still sends the MAC CE according to the old format.

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

Referring to FIG. 2, FIG. 2 is a signal control transmission method according to an embodiment of the present application, which is applied to the above example communication system, and the method includes: in 201, the first network device sends a first signal to the second network device. The first signal is used to instruct the second network device to update the sending of the media access control layer control unit MAC CE signal, and the first network device and the second network device provide dual connectivity for the terminal. transmission.

It can be seen that, in the embodiment of the present application, the first network device sends the first signal to the second network device, where the first signal is used to instruct the second network device to update the sending of the MAC CE signal, the first network The device and the second network device provide dual connectivity for the terminal. Therefore, in some specific cases, the second network device sends a MAC CE signal to the terminal, which causes an error in the second network device and the terminal to call the bearer, which is beneficial to improving the network device and the terminal in the dual-connection transmission network. Call the consistency of the bearer.

In a possible example, the method further includes: the first network device sending a radio resource control RRC signal to the terminal to update a target bearer of the terminal; the first network device to the The second network device sends a second signal, where the second signal is used to notify the second network device to send the updated MAC CE signal.

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

It can be seen that, in this example, after completing the update of the target bearer of the terminal, the first network device promptly informs the second network device to resume sending the updated MAC CE, so as to prevent the second network device from suspending interaction with the terminal for a long time. Affecting data transmission efficiency is beneficial to improving data transmission efficiency and stability between the second network device and the terminal in the dual connectivity transmission system.

In a possible example, the first signal is used to indicate that the second network device cancels sending a MAC CE signal to the terminal, and updates a format of the MAC CE signal.

It can be seen that, in this example, the first signal can indicate that the second network device pauses to send the MAC CE signal during the period when the target bearer is updated, and performs the format update of the MAC CE in time, so as to ensure that the bearer is scheduled to be transmitted with the terminal when the subsequent recovery is sent. Consistency.

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

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

In a possible example, the target bearer of the terminal indicated by the first signal includes at least one of the following: a slave cell group bearer (SCG bearer), a primary zone group split bearer MCG split bearer, The secondary zone group separates the bearer SCG split bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

Referring to FIG. 3, FIG. 3 is another signal control transmission method provided by an embodiment of the present application, which is applied to the foregoing example communication system, where the method includes: The device receives a first signal from the first network device, the first network device and the second network device providing dual connectivity transmission for the terminal. In section 302, the second network device updates the transmission of the medium access control layer control unit MAC CE signal according to the first signal.

It can be seen that, in the embodiment of the present application, the second network device first receives the first signal from the first network device, and secondly, the second network device updates the sending of the MAC CE signal according to the first signal, and the first network The road device and the second network device provide dual connectivity for the terminal. Therefore, in some specific cases, the second network device sends a MAC CE signal to the terminal, which causes an error in the second network device and the terminal to call the bearer, which is beneficial to improving the network device and the terminal in the dual-connection transmission network. Call the consistency of the bearer.

In a possible example, the method further includes: the second network device receives a second signal from the first network device; and the second network device sends the updated MAC according to the second signal CE signal.

In a possible example, before the second network device receives the second signal from the first network device, the method further includes: the second network device sending an acknowledgement to the first network device message.

In a possible example, the second signal is sent by the first network device to the first network device after the RRC signal is sent to the terminal to update the target bearer of the terminal. .

In a possible example, the method further includes: the second network device receiving a third signal from the terminal; and the second network device sending the updated MAC CE signal to the terminal. It can be seen that, in this example, the second network device can resume sending the updated MAC CE signal by receiving the third signal from the terminal, so as to ensure consistency of the scheduled bearer between the second network device and the terminal.

In a possible example, the third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE signal to the terminal after successful completion.

In a possible example, the second network device updates the sending of the media access control layer control unit MAC CE signal according to the first signal, including: the second network device cancels according to the first signal Sending a MAC CE signal to the terminal and updating the format of the MAC CE signal.

It can be seen that, in this example, the first signal can indicate that the second network device pauses to send the MAC CE signal during the period when the target bearer is updated, and performs the format update of the MAC CE in time, so as to ensure that the bearer is scheduled to be transmitted with the terminal when the subsequent recovery is sent. Consistency.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

4, FIG. 4 is another signal control transmission method provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes: Receiving a radio resource control RRC signal from the first network device to update a target bearer of the terminal, where the RRC signal is sent by the first network device after receiving an acknowledgement message from the second network device The acknowledgment message is sent by the second network device after receiving the first signal from the first network device, where the first signal is used to indicate that the second network device updates the media. The access control layer controls the transmission of the MAC CE signal, and the first network device and the second network device provide dual connectivity for the terminal.

It can be seen that, in the embodiment of the present application, when receiving the RRC signal update target bearer sent by the first network device, the first network device notifies the second network device to update the MAC CE during the period by using the first signal. The transmission of the signal can prevent the second network device from transmitting the MAC CE signal to the terminal during the period in which the target bearer is updated, thereby causing the bearer scheduling to be inconsistent, which is beneficial to improving the network device and the terminal in the dual-connection transmission system. Consistency of inter-scheduling bearers.

In a possible example, the method further includes: the terminal receiving the updated MAC CE signal sent by the second network device.

In one possible example, the updated MAC CE signal is sent after the second network device receives the second signal from the first network device.

In a possible example, before the terminal receives the updated MAC CE signal sent by the second network device, the method further includes: the terminal sending the third signal to the second network device, The third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE signal to the terminal after successful completion.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

For example, referring to FIG. 5, FIG. 5 is a signal control transmission method according to an embodiment of the present application, which is applied to the foregoing example communication system, where the method includes: The device sends a first signal to the second network device, where the first signal is used to instruct the second network device to update the sending of the media access control layer control unit MAC CE signal, the first network device and the The second network device provides dual connectivity for the terminal.

In 502, the second network device receives the first signal from the first network device, where the first network device and the second network device provide dual connectivity transmission for the terminal;

In section 503, the second network device updates the transmission of the medium access control layer control unit MAC CE signal according to the first signal.

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

In 504, the terminal receives a radio resource control RRC signal from the first network device to update a target bearer of the terminal, where the RRC signal is that the first network device receives an acknowledgement from the second network device. After the message is sent to the terminal, the confirmation message is sent by the second network device after receiving the first signal from the first network device, where the first signal is used to indicate the second The network device updates the transmission of the media access control layer control unit MAC CE signal, and the first network device and the second network device provide dual connectivity transmission for the terminal.

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

In the 507A portion, the second network device receives the second signal from the first network device.

In 508, the second network device sends the updated MAC CE signal according to the second signal.

In addition, the second network device may trigger the sending of the updated MAC CE signal by using the foregoing steps 506A and 507A, and may be triggered by the following steps. The step specifically includes: in part 506B, the terminal is connected to the second network. The third device sends a third signal, where the third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE signal to the terminal after the successful completion.

In section 507B, the second network device receives a third signal from the terminal.

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

It can be seen that, in the embodiment of the present application, the second network device does not see the process of updating the target bearer of the first network device in the dual-connection transmission system, and the update of the target bearer changes the format of the MCA CE, so During the update period of the target bearer, the second network device is not suitable to continue to send the MAC CE signal to the terminal, so as to prevent the terminal from causing a misunderstanding. Based on this, the first network device sends the first signal to the second network device, and timely notifies. The second network device updates the sending of the MAC CE, and waits until the first network device completes the update of the target bearer and sends the second signal, and the second network device sends the updated MAC CE to the terminal again, because the target The bearer update is complete, and the terminal side knows the update status of the MAC CE. Therefore, when the second network device sends the updated MAC CE, the terminal can synchronously identify the bearer scheduled by the second network device, thereby ensuring the dual-connection transmission network. The consistency between the network equipment in the road and the terminal scheduling bearer.

With reference to FIG. 6A, FIG. 6A is a schematic structural diagram of a network device according to an embodiment of the present disclosure. The network device is a first network device. As shown in the figure, the network device includes a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program including for execution Instructions for the following steps;

Sending a first signal to the second network device, where the first signal is used to instruct the second network device to update the sending of the media access control layer control unit MAC CE signal, the first network device and the The second network device provides dual connectivity for the terminal.

It can be seen that, in the embodiment of the present application, the first network device sends the first signal to the second network device, where the first signal is used to instruct the second network device to update the sending of the MAC CE signal, the first network The device and the second network device provide dual connectivity for the terminal. Therefore, in some specific cases, the second network device sends a MAC CE signal to the terminal, which causes an error in the second network device and the terminal to call the bearer, which is beneficial to improving the network device and the terminal in the dual-connection transmission network. Call the consistency of the bearer.

In one possible example, the program further includes instructions for: transmitting a radio resource control RRC signal to the terminal to update a target bearer of the terminal; and transmitting a second to the second network device The second signal is used to notify the second network device to send the updated MAC CE signal.

In a possible example, the first signal is used to indicate that the second network device cancels sending a MAC CE signal to the terminal, and updates a format of the MAC CE signal.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

With reference to FIG. 6B, FIG. 6B is a schematic structural diagram of a network device according to an embodiment of the present disclosure. The network device is a second network device. As shown in the figure, the network device includes a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program including for execution Instructions for the following steps;

Receiving a first signal from the first network device, the first network device and the second network device providing dual connectivity transmission for the terminal.

Transmitting the transmission of the medium access control layer control unit MAC CE signal according to the first signal.

It can be seen that, in the embodiment of the present application, the second network device first receives the first signal from the first network device, and secondly, the second network device updates the sending of the MAC CE signal according to the first signal, and the first network The road device and the second network device provide dual connectivity for the terminal. Therefore, in some specific cases, the second network device sends a MAC CE signal to the terminal, which causes an error in the second network device and the terminal to call the bearer, which is beneficial to improving the network device and the terminal in the dual-connection transmission network. Call the consistency of the bearer.

In one possible example, the program further includes instructions for: receiving a second signal from the first network device; and transmitting the updated MAC CE signal based on the second signal.

In one possible example, the program further includes instructions for transmitting an acknowledgement message to the first network device prior to the receiving the second signal from the first network device. In a possible example, the second signal is sent by the first network device to the first network device after the RRC signal is sent to the terminal to update the target bearer of the terminal. .

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

In a possible example, the third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE signal to the terminal after successful completion.

In one possible example, in the transmitting the media access control layer control unit MAC CE signal according to the first signal, the instruction in the program is specifically configured to perform the following operations: according to the first signal The MAC CE signal is sent to the terminal and the format of the MAC CE signal is updated.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

With reference to FIG. 6C, FIG. 6C is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in the figure, the terminal includes a processor, a memory, a communication interface, and one or more programs. Wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the following steps;

Receiving a radio resource control RRC signal from the first network device to update a target bearer of the terminal, where the RRC signal is sent by the first network device after receiving an acknowledgement message from the second network device The acknowledgment message is sent by the second network device after receiving the first signal from the first network device, where the first signal is used to indicate that the second network device updates the media. The access control layer controls the transmission of the MAC CE signal, and the first network device and the second network device provide dual connectivity for the terminal.

It can be seen that, in the embodiment of the present application, when receiving the RRC signal update target bearer sent by the first network device, the first network device notifies the second network device to update the MAC CE during the period by using the first signal. The transmission of the signal can prevent the second network device from transmitting the MAC CE signal to the terminal during the period in which the target bearer is updated, thereby causing the bearer scheduling to be inconsistent, which is beneficial to improving the network device and the terminal in the dual-connection transmission system. Consistency of inter-scheduling bearers.

In one possible example, the program further includes instructions for receiving an updated MAC CE signal sent by the second network device.

In one possible example, the updated MAC CE signal is sent after the second network device receives the second signal from the first network device.

In one possible example, the program further includes instructions for: transmitting the updated MAC CE signal sent by the second network device to the second network device before receiving the updated MAC CE signal sent by the second network device The third signal is used to instruct the second network device to receive the random access request initiated by the terminal, and send the updated MAC CE signal to the terminal after successful completion.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

The foregoing describes the solution of the embodiment of the present application mainly from the perspective of interaction between the network elements. It can be understood that, in order to implement the above functions, the terminal and the network device include a hardware structure and/or a software module corresponding to each function. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements of the examples and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is implemented in hardware or in a computer software-driven manner depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for each particular application to implement the described functionality, but such implementation should not be considered to be beyond the scope of the application.

The embodiment of the present application may divide the functional unit into the terminal and the network device according to the foregoing method. For example, each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or 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 logical function division. In actual implementation, there may be another division manner.

In the case of an integrated unit, FIG. 7 shows a block diagram of a possible functional unit of the network device involved in the above embodiment, the network device being a first network device. The network device 700 includes a processing unit 702 and a communication unit 703. The processing unit 702 is configured to perform control management on the actions of the network device. For example, the 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 of the described techniques. The communication unit 703 is used to support communication between the network device and other devices, such as communication with the terminal shown in FIG. 6C. The network device may further include a storage unit 701 for storing the code and data of the network device.

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

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

In a possible example, the processing unit 703 is further configured to: send, by using the communication unit 703, a radio resource control RRC signal to the terminal to update a target bearer of the terminal; and The second network device sends a second signal, where the second signal is used to notify the second network device to send the updated MAC CE signal.

In a possible example, the first signal is used to indicate that the second network device cancels sending a MAC CE signal to the terminal, and updates a format of the MAC CE signal.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

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 involved in the embodiment of the present application may be the network device shown in FIG. 6A.

In the case of an integrated unit, FIG. 8 shows a block diagram of one possible functional unit of the network device involved in the above embodiment, the network device being a second network device. The network device 800 includes a processing unit 802 and a communication unit 803. The processing unit 802 is configured to control and manage the actions of the network device. For example, the processing unit 802 is configured to support the network device to perform steps 301 and 302 in FIG. 3, steps 502, 503, 507, 508 and/or in FIG. Or other processes for the techniques described herein. The communication unit 803 is used to support communication between the network device and other devices, such as communication with the terminal shown in FIG. 6C. The network device may further include a storage unit 801 for storing the code and data of the network device.

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

The processing unit 802 is configured to receive the first signal from the first network device by using the communication unit 803, where the first network device and the second network device provide dual connectivity for the terminal . And updating the sending of the medium access control layer control unit MAC CE signal according to the first signal.

In one possible example, the processing unit 802 is further configured to: receive, by the communication unit, a second signal from the first network device; and send, by using the second signal, the updated unit by using the communication unit 803. MAC CE signal.

In one possible example, the processing unit 802 is further configured to send, by using the communication unit 803, the first network device, before receiving the second signal from the first network device, by using the communication unit 803. Confirmation message.

In a possible example, the second signal is sent by the first network device to the first network device after the RRC signal is sent to the terminal to update the target bearer of the terminal. .

In one possible example, the processing unit 802 is further configured to receive the third signal from the terminal by using the communication unit 803; and send the updated MAC CE signal to the terminal by using the communication unit.

In a possible example, the third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE signal to the terminal after successful completion.

In a possible example, the processing unit 802 is specifically configured to: cancel the sending according to the first signal, according to the sending, by the first signal, the sending of the medium access control layer control unit MAC CE signal The terminal sends a MAC CE signal and updates the format of the MAC CE signal.

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

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 involved in the embodiment of the present application may be the network device shown in FIG. 6B.

In the case of employing an integrated unit, FIG. 9 shows a block diagram of one possible functional unit composition of the terminal involved in the above embodiment. The terminal 900 includes a processing unit 902 and a communication unit 903. The processing unit 902 is configured to perform control management on the actions of the terminal. For example, the processing unit 902 is configured to support the terminal to perform step 401 in FIG. 4, steps 505, 509 in FIG. 5, and/or other techniques for the techniques described herein. process. The communication unit 903 is used to support communication between the terminal and other devices, such as communication with the network device shown in FIG. 6A or 6B. The terminal may further include a storage unit 901 for storing the code and data of the terminal.

The processing unit 902 can be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and a dedicated integrated circuit (Application- Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication unit 903 can be a transceiver, a transceiver circuit, etc., and the storage unit 901 can be a memory.

The processing unit 902 is configured to receive, by using the communication unit 903, a radio resource control RRC signal from the first network device to update a target bearer of the terminal, where the RRC signal is that the first network device is After receiving the acknowledgement message from the second network device, the acknowledgement message is sent by the second network device after receiving the first signal from the first network device, The first signal is used to instruct the second network device to update the sending of the media access control layer control unit MAC CE signal, 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 signal sent by the second network device.

In one possible example, the updated MAC CE signal is sent after the second network device receives the second signal from the first network device.

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

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

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

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split Bearer.

In a possible example, the target bearer of the terminal that is updated by the first signal includes at least one of the following: a secondary area group bearer SCG bearer, a primary area group split bearer MCG split bearer, and a secondary area group split bearer SCG split The bearer and the primary zone group carry the MCG bearer.

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 involved in 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, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal device in the method embodiment as described above Some or all of the steps described.

The embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a network as in the foregoing method embodiment Some or all of the steps described by the device.

The embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operable to cause the computer to execute the method embodiment as described above Some or all of the steps described in the terminal. The computer program product can be a software installation package.

The embodiment of the present application further 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 the computer to execute the network as described above. Some or all of the steps described by the device. The computer program product can be a software installation package.

The steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented by a processor executing a software instruction. The software command can be composed of corresponding software modules. The software module can be stored in random access memory (RAM), flash memory, read only memory (ROM), erasable. In addition to Erasable Programmable ROM (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard drives, removable hard drives, CD-ROMs Or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from the storage medium and to write a message to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented in whole or in part through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be from a website website, computer, server or data The center transmits to another website, computer, server or data center via wired (eg coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.). The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a Digital Video Disc (DVD)), or a semiconductor medium (eg, a solid state disk (Solid State Disk) , SSD)) and so on.

The specific embodiments of the present invention have been described in detail with reference to the embodiments, technical solutions and advantages of the embodiments of the present application. It should be understood that the foregoing description is only The scope of the present invention is defined by the scope of the present invention, and any modifications, equivalents, improvements, etc., which are included in the embodiments of the present application, are included in the scope of protection of the embodiments of the present application.

100‧‧‧Wireless communication system

101, 700, 800‧‧‧ network equipment

103, 900‧‧‧ Terminal

105‧‧‧Wireless interface

115‧‧‧ core network

201, 301, 302, 401, 501, 502, 503, 504, 506A, 506B, 507A, 507B, 508, 509 ‧ ‧ steps

701, 801, 901‧‧‧ storage unit

702, 802, 902‧‧ ‧ processing unit

703, 803, 903‧‧‧ communication unit

BRIEF DESCRIPTION OF THE DRAWINGS The drawings to be used in the embodiments or the description of the prior art will be briefly described below.

1A is a transmission architecture example of a dual connectivity replication transmission mode provided by an embodiment of the present application;

FIG. 1B is a network architecture diagram of a possible communication system according to an embodiment of the present application; FIG.

2 is a schematic flowchart of a signal control transmission method according to an embodiment of the present application;

3 is a schematic flowchart of a signal control transmission method according to an embodiment of the present application;

4 is a schematic flowchart of a signal control transmission method according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a signal 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 disclosure;

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

7 is a block diagram showing the functional unit components of a network device according to an embodiment of the present application;

FIG. 8 is a block diagram showing the functional unit of a network device according to an embodiment of the present disclosure;

FIG. 9 is a block diagram showing the functional unit composition of a terminal according to an embodiment of the present application.

Claims (15)

A signal control transmission method, comprising: transmitting, by a first network device, a first signal to a second network device, where the first signal is used to instruct the second network device to update media access control layer control The sending of the unit MAC CE signal, the first network device and the second network device providing dual connectivity transmission for the terminal. The method of claim 1, wherein the method further comprises: the first network device transmitting a radio resource control RRC signal to the terminal to update a target bearer of the terminal; The first network device sends a second signal to the second network device, where the second signal is used to notify the second network device to send the updated MAC CE signal. The method of claim 1, wherein the first signal is used to instruct the second network device to cancel sending a MAC CE signal to the terminal, and to update a format of the MAC CE signal. A signal control transmission method, comprising: receiving, by a second network device, a first signal from a first network device, wherein the first network device and the second network device provide a dual The second network device updates the transmission of the medium access control layer control unit MAC CE signal according to the first signal. The method of claim 4, wherein the method further comprises: the second network device receiving a second signal from the first network device; the second network device according to the The second signal sends the updated MAC CE signal. The method of claim 5, wherein the second signal is after the first network device sends a radio resource control RRC signal to the terminal to update the target bearer of the terminal. The first network device sends. A signal control transmission method, comprising: receiving, by a terminal, a radio resource control RRC signal from a first network device to update a target bearer of the terminal, where the RRC signal is received by the first network device After the confirmation message from the second network device is sent to the terminal, the confirmation message is sent by the second network device after receiving the first signal from the first network device, where the first The signal is used to instruct the second network device to update the transmission of the medium access control layer control unit MAC CE signal, and the first network device and the second network device provide dual connectivity transmission for the terminal. The method of claim 7, wherein the method further comprises: receiving, by the terminal, the updated MAC CE signal sent by the second network device. The method of claim 8, wherein the updated MAC CE signal is sent after the second network device receives the second signal from the first network device. The method of claim 8, wherein before the terminal receives the updated MAC CE signal sent by the second network device, the method further includes: the terminal to the The second network device sends a third signal, where the third signal is used to indicate that the second network device receives the random access request initiated by the terminal, and sends the updated MAC CE to the terminal after successful completion. Signal. The method according to any one of claims 7 to 10, wherein the target bearer supports a data copy function. The method according to any one of claims 7 to 10, wherein the first signal is used to perform any one of the following update operations for the target bearer of the terminal: bearer establishment, bearer release, and bearer modification. . The method according to any one of claims 7 to 10, wherein the target bearer of the terminal indicated by the first signal includes at least one of the following: a secondary area group carrying a SCG bearer, a primary area The target bearer of the terminal that is updated by the first signal includes the following at least one of the following: the secondary area group carries the SCG bearer, and the primary area group separate bearer The MCG split bearer and the secondary area group are separated by the SCG split bearer, and the primary area group carries the MCG bearer. A network device, comprising: a processor, a memory, a transceiver, and one or more programs, the one or more programs being stored in the memory and configured by the processor Executing, the program includes instructions for performing the steps in the method of any of claims 1-6, 11-13. A terminal, comprising: a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program includes instructions for performing the steps in the method of any of claims 7-13.