TWI691219B - Method and related products of signaling control transmission - Google Patents

Abstract

The present discloure disclosed a method and related product of signaling control transmission, which includes: the first network device sends the 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

This application relates to the field of communication technology, in particular to a signal control transmission method and related products.

In heterogeneous wireless systems, when different types of base stations cooperate in networking, the bandwidth resources and coverage of a single base station are limited. Therefore, it is easier to concentrate the wireless resources of multiple areas or base stations to provide users with services. To meet the user's capacity requirements and coverage requirements, this method is usually called multi-connection. In Long Term Evolution (LTE) network systems, commonly used multi-connection methods include carrier aggregation, coordinated multiple points (CoMP), and dual connection.

In the dual connectivity (Dual Connectivity, DC) transmission mode, the protocol structure of the replication data transmission mode is shown in FIG. 1A. The protocol structure adopts a protocol structure that separately carries a split bearer; for upstream and downstream, packet data control protocol (Packet Data Convergence Protocol, PDCP) entity is located in a certain cell area (Cell Group, CG) base station (service area group controlled by the main base station MCG base station or service base group controlled by the secondary base station SCG base station). The PDCP entity copies the PDCP protocol data unit (Protocol Data Unit, PDU) into the same two copies. For example, one is a PDCP PDU, one is a Duplicated PDCP PDU, and two PDCP PDUs pass through the RLC layer entity and MAC layer entity of different CG base stations. , And then reach the terminal (downlink) or base station (uplink) through the air interface to the corresponding MAC layer entity and RLC layer entity, and finally converge to the PDCP layer entity, the PDCP layer entity detects that the two PDCP PDUs are the same version, that is, discarded One of them will submit the other to the higher order entity. The following bearer connecting the two RLC entities and the MAC entity separately is called a split bearer. If the PDCP entity is located at the MCG base station, it is MCG Split Bearer, and if the PDCP entity is located at the SCG base station, it is SCG Split Bearer.

Embodiments of the present application provide a signal control transmission method and related products, which are beneficial to improve the consistency of scheduling and bearer between network devices and terminals in a dual-connection transmission network that supports data replication transmission functions.

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

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

In a possible implementation manner, before the second network device receives the second signal from the first network device, the method further includes: the second network device sends to the first network device Confirm the message.

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

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

In a possible implementation manner, the second network device updating the transmission of the MAC CE signal of the media access control layer control unit according to the first signal includes: the second network device according to the first signal Cancel sending the MAC CE signal to the terminal, and update the format of the MAC CE signal.

In a third aspect, an embodiment of the present application provides a signal control transmission method, including: a terminal receives a radio resource control RRC signal from a first network device to update a target bearer of the terminal, the RRC signal is the first network The road device sends to the terminal after receiving the confirmation message from the second network device, the confirmation 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 transmission of the MAC CE signal of the media access control layer control unit, and the first network device and the second network device provide a dual connection for the terminal transmission.

According to a fourth aspect, an embodiment of the present application provides a network device having a function to implement the behavior of the first network device in the above method design. The above functions can be realized by hardware, and can also be realized by executing corresponding software through hardware. The hardware or software includes one or more modules corresponding to the above functions. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding function in the above method. Further, the network device may further include a transceiver, and the transceiver is used to support communication between the network device and the terminal. Further, the network device may further include a memory, which is used to couple with the processor, which stores necessary program instructions and data of the network device.

According to a fifth aspect, an embodiment of the present application provides a network device having a function to implement the behavior of the second network device in the above method design. The above functions can be realized by hardware, and can also be realized by executing corresponding software through hardware. The hardware or software includes one or more modules corresponding to the above functions. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding function in the above method. Further, the network device may further include a transceiver, and the transceiver is used to support communication between the network device and the terminal. Further, the network device may further include a memory, which is used to couple with the processor, which stores necessary program instructions and data of the network device.

According to a sixth aspect, an embodiment of the present application provides a terminal that has a function to implement the behavior of the terminal in the above method design. The above functions can be realized by hardware, and can also be realized by executing corresponding software through hardware. The hardware or software includes one or more modules corresponding to the above functions. In a possible design, the terminal includes a processor configured to support the terminal to perform the corresponding function in the above method. Further, the terminal may further include a transceiver, and the transceiver is used to support communication between the terminal and the network device. Further, the terminal may further include a memory, which is used to couple with the processor, which stores necessary program instructions and data of the terminal.

According to a seventh aspect, an embodiment of the present application provides a network device. The network device is a first network device, including a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs It is stored in the memory and is configured to be executed by the processor, and the program includes instructions for performing the steps in any method of the first aspect of the embodiments of the present application.

According to an eighth aspect, an embodiment of the present application provides a network device, the network device is a second network device, including a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs It is stored in the memory and is configured to be executed by the processor, and the program includes instructions for performing steps in any method of the second aspect of the embodiments of the present application.

In a ninth aspect, an 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 The processor executes, and the program includes instructions for executing steps in any method of the third aspect of the embodiments of the present application.

According to a tenth aspect, an 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 described in the embodiment of the present application Part or all of the steps described in any method of the first aspect.

According to an eleventh aspect, an 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 described in this application Examples of some or all of the steps described in any method of the second aspect.

According to a twelfth aspect, an 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 Examples of some or all of the steps described in any method of the third aspect.

In a thirteenth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, the computer program is operable to cause the computer to execute Part or all of the steps described in any method of the first aspect, 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. Since the first signal is used to instruct the second network device to update the transmission of the MAC CE signal, the first network device And the second network device to provide dual connection transmission for the terminal. In this way, it can avoid the situation that the second network device sends a MAC CE signal to the terminal under certain circumstances, which causes errors in the call bearer of the second network device and the terminal, which is beneficial to improve the network device and 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 drawings.

FIG. 1B shows a wireless communication system involved in this application. The wireless communication system can work in a high-frequency band, and is not limited to a long-term evolution (Long Term Evolution, LTE) system, but can also be a 5G Generation (5G) system and a new air interface that will evolve in the future ( NR) system, machine to machine communication (Machine to Machine, 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. Among them: The network device 101 can be a base station, which can be used to communicate with one or more terminals, and can also be used to communicate with one or more base stations with partial terminal functions (such as macro base stations and micro Communication between base stations, such as access points). The base station may be a base transceiver station (Base Transceiver Station, BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or an evolved node in an LTE system ( Evolutional Node B, eNB), as well as base stations in 5G systems and new air interface (NR) systems. In addition, the base station may also be an access point (Access Point, AP), a transmission node (Trans TRP), a central unit (Central Unit, CU), or other network entities, and may include some of the functions of the above network entities Or all functions.

The terminal 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, a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, a mobile user terminal, and so on.

Specifically, the network device 101 can be used 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 may be used to transmit control messages or user data to the core network 115 through the blackhaul interface 113 (such as the S1 interface). Specifically, the network device 101 and the network device 101 may 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 to more clearly explain the technical solution of the present application, and does not constitute a limitation on the present application. Those of ordinary skill in the art may know that as the network architecture evolves and new The emergence of business scenarios, the technical solutions provided in this application are also applicable to similar technical issues.

The related technologies involved in this application are introduced below.

At present, in the fifth-generation mobile communication technology (5th-Generation, 5G) and New Radio (NR) systems, it is proposed that the carrier aggregation technology support data duplication (Data Duplication) program using packet data aggregation agreement ( Packet Data Convergence Protocol (PDCP) layer entity copy data function, so that the copied PDCP Protocol Data Unit (PDCP Protocol Data Unit, PDCP PDU) is transmitted to the two Radio Link Control (Radio Link Control, RLC) layer entities (The two RLC layer entities have different logical channels), and finally ensure that the copied PDCP PDU can transmit data on the aggregate carrier of different entity layers.

However, in the DC scenario, since the master node (Master Node, MN) and the slave node (Slave Node, SN) can send MAC CE, when a data replication bearer is established/released, it will affect the format of the MAC CE. If a master cell group bearer (Master Cell Grpup bearer, MCG bearer) is in the data replication mode, a corresponding bit bit should appear on the MAC CE, otherwise it does not. This is the change in the format of the MAC CE format. The problem here is that for the MCG bearer, because it is independent of the SN, the SN may not know the existence of the MCG bearer, so it does not know whether the MAC CE format should be changed. Considering that the RRC signal of bearer establishment/release is sent by the MN to the user equipment (User Equiment, UE), and the signal transmission takes time, how to control the MAC CE transmission by the SN to avoid the UE's misunderstanding needs to be resolved problem. The misunderstanding here is: (1) The bearer establishment/release RRC signal 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 bearer establishment/release RRC signal 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 embodiments of the present application propose the following embodiments, which will be described in detail below with reference to the drawings.

Please refer to FIG. 2. FIG. 2 is a signal control transmission method provided by an embodiment of the present application, which is applied to the above example communication system. The method includes: In section 201, a first network device sends a first signal to a second network device , The first signal is used to instruct the second network device to update the transmission of the MAC CE signal of the media access control layer control unit, and the first network device and the second network device provide a dual connection 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. Since the first signal is used to instruct the second network device to update the transmission of the MAC CE signal, the first network The device and the second network device provide dual connection transmission for the terminal. In this way, it can avoid the situation that the second network device sends a MAC CE signal to the terminal under certain circumstances, which causes errors in the call bearer of the second network device and the terminal, which is beneficial to improve the network device and 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 sends a radio resource control RRC signal to the terminal to update the target bearer of the terminal; the first network device sends the first The second network device sends a second signal, and the second signal is used to notify the second network device to send the updated MAC CE signal.

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

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

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

It can be seen that in this example, the first signal can instruct the second network device to suspend sending the MAC CE signal during the period when the target bearer is updated, and to update the MAC CE format in time, so as to ensure that the bearer is scheduled with the terminal when the transmission is resumed later Consistency.

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary cell group bearer (Slave Cell Group bearer, SCG bearer), a primary cell group bearer MCG split bearer, The secondary regional group bears the SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears MCG bearer.

Consistent with the embodiment shown in FIG. 2, please refer to FIG. 3. FIG. 3 is another signal control transmission method provided by an embodiment of the present application, which is applied to the above example communication system. The method includes: In part 301, a second network The device receives a first signal from a first network device, and the first network device and the second network device provide dual connection transmission for the terminal. In part 302, the second network device updates the transmission of the MAC CE signal of the media access control layer control unit 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 transmission of the MAC CE signal according to the first signal, and the first network The road equipment and the second network equipment provide dual connection transmission for the terminal. In this way, it can avoid the situation that the second network device sends a MAC CE signal to the terminal under certain circumstances, which causes errors in the call bearer of the second network device and the terminal, which is beneficial to improve the network device and 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; the second network device sends an 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 sends an acknowledgement to the first network device message.

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

In a possible example, the method further includes: the second network device receives a third signal from the terminal; and the second network device sends an 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 to ensure the consistency of the scheduling bearer between the second network device and the terminal.

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

In a possible example, the second network device updates the transmission of the MAC CE signal of the media access control layer control unit 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 instruct the second network device to suspend sending the MAC CE signal during the period when the target bearer is updated, and to update the MAC CE format in time, so as to ensure that the bearer is scheduled with the terminal when the transmission is resumed later Consistency.

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears MCG bearer.

Consistent with the embodiments shown in FIG. 2 and FIG. 3, please refer to FIG. 4, which is another signal control transmission method provided by an embodiment of the present application, which is applied to the above example communication system. The method includes: In section 401, a terminal Receiving a radio resource control RRC signal from the first network device to update the target bearer of the terminal, the RRC signal is the first network device receiving the confirmation message from the second network device Sent by the terminal, the confirmation 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 media The access control layer controls the transmission of the MAC CE signal. The first network device and the second network device provide dual connection transmission for the terminal.

It can be seen that in the embodiment of the present application, when the terminal receives the RRC signal update target bearer sent by the first network device, the first network device will notify the second network device to update the MAC CE during the period through the first signal The transmission of the signal can avoid the situation that the second network device sends the MAC CE signal to the terminal during the period when the target bearer is updated, resulting in inconsistent bearer scheduling, which is beneficial to improve the network equipment and 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 a possible example, the updated MAC CE signal is sent by the second network device after receiving 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 a third signal to the second network device, The third signal is used to instruct the second network device to receive a random access request initiated by the terminal, and send the updated MAC CE signal to the terminal after successful completion.

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears MCG bearer.

Consistent with the embodiments of FIGS. 2 to 4, please refer to FIG. 5. FIG. 5 is a signal control transmission method provided by an embodiment of the present application, which is applied to the above example communication system. The method includes: In section 501, the first network The device sends a first signal to the second network device, the first signal is used to instruct the second network device to update the transmission of the MAC CE signal of the media access control layer control unit, the first network device and all The second network device provides dual connection transmission for the terminal.

In section 502, a second network device receives a first signal from a first network device, and the first network device and the second network device provide dual connection transmission for the terminal;

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

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

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

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

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

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

In addition, the second network device can trigger the sending of the updated MAC CE signal through the above steps 506A and 507A, and can also be triggered through the following steps, which specifically include: In section 506B, the terminal sends the second network The road device sends a third signal, and 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 section 507B, the second network device receives the third signal from the terminal.

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

It can be seen that in the embodiment of the present application, since the second network device cannot see the process of the first network device updating the target bearer of the terminal in the dual connection transmission system, and the update of the target bearer will change 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 MAC CE signals to the terminal to avoid misunderstanding of the terminal. Based on this, the first signal is sent to the second network device through the first network device to notify in time The second network device sends the updated MAC CE and waits until the first network device completes the update of the target bearer and sends a second signal. The second network device then sends the updated MAC CE to the terminal. The bearer update has been completed, and the terminal side has known the update status of the MAC CE. Therefore, when the second network device sends the updated MAC CE, the terminal can already synchronously recognize the bearer scheduled by the second network device, thereby ensuring the dual-connection transmission network Consistency of dispatching and carrying of network equipment and terminals on the road.

Consistent with the above embodiment, please refer to FIG. 6A. FIG. 6A is a schematic structural diagram of a network device according to an embodiment of the present application. 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 are configured to be executed by the processor, the programs include Instructions for the following steps;

Send a first signal to the second network device, the first signal is used to instruct the second network device to update the transmission of the MAC CE signal of the media access control layer control unit, the first network device and the The second network device provides dual connection transmission 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. Since the first signal is used to instruct the second network device to update the transmission of the MAC CE signal, the first network The device and the second network device provide dual connection transmission for the terminal. In this way, it can avoid the situation that the second network device sends a MAC CE signal to the terminal under certain circumstances, which causes errors in the call bearer of the second network device and the terminal, which is beneficial to improve the network device and terminal in the dual-connection transmission network. Call the consistency of the bearer.

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

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

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears MCG bearer.

Consistent with the above embodiments, please refer to FIG. 6B. FIG. 6B is a schematic structural diagram of a network device according to an embodiment of the present application. 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 are configured to be executed by the processor, the programs include Instructions for the following steps;

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

Update the transmission of the MAC CE signal of the media access control layer control unit 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 transmission of the MAC CE signal according to the first signal, and the first network The road equipment and the second network equipment provide dual connection transmission for the terminal. In this way, it can avoid the situation that the second network device sends a MAC CE signal to the terminal under certain circumstances, which causes errors in the call bearer of the second network device and the terminal, which is beneficial to improve the network device and terminal in the dual-connection transmission network. Call the consistency of the bearer.

In a possible example, the program further includes instructions for performing the following operations: receiving a second signal from the first network device; and sending an updated MAC CE signal according to the second signal.

In a possible example, the program further includes instructions for performing the following operation: before the receiving the second signal from the first network device, sending a confirmation message to the first network device. In a possible example, the second signal is sent to the first network device after the first network device sends a radio resource control RRC signal to the terminal to update the target bearer of the terminal .

In a possible example, the program further includes instructions for performing the following operations: receiving a third signal from the terminal; and sending an updated MAC CE signal to the terminal.

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

In a possible example, with respect to the transmission of the MAC CE signal of the media access control layer control unit updated according to the first signal, the instructions in the program are specifically used to perform the following operations: according to the first signal Cancel sending the MAC CE signal to the terminal, and update the format of the MAC CE signal.

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears MCG bearer.

Consistent with the above embodiment, please refer to FIG. 6C. FIG. 6C is a schematic structural diagram of a terminal provided by an embodiment of the present application. 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 are configured to be executed by the processor, and the programs include instructions for performing the following steps;

Receiving a radio resource control RRC signal from the first network device to update the target bearer of the terminal, the RRC signal is the first network device receiving the confirmation message from the second network device Sent by the terminal, the confirmation 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 media The access control layer controls the transmission of the MAC CE signal. The first network device and the second network device provide dual connection transmission for the terminal.

It can be seen that in the embodiment of the present application, when the terminal receives the RRC signal update target bearer sent by the first network device, the first network device will notify the second network device to update the MAC CE during the period through the first signal The transmission of the signal can avoid the situation that the second network device sends the MAC CE signal to the terminal during the period when the target bearer is updated, resulting in inconsistent bearer scheduling, which is beneficial to improve the network equipment and terminal in the dual connection transmission system. Consistency of inter-scheduling bearers.

In a possible example, the program further includes instructions for performing the following operations: receiving the updated MAC CE signal sent by the second network device.

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

In a possible example, the program further includes an instruction to perform the following operation: before the receiving the updated MAC CE signal sent by the second network device, send to the second network device A third signal, the third signal is used to instruct the second network device to receive a random access request initiated by the terminal and send an updated MAC CE signal to the terminal after successful completion.

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears MCG bearer.

The above mainly introduces the solutions of the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to realize the above-mentioned functions, the terminal and the network equipment include hardware structures and/or software modules corresponding to performing each function. Those skilled in the art should be easily aware that, in conjunction with the exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application may divide the functional units of the terminal and the network device according to the above method example, 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 above integrated unit can be implemented in the form of hardware or software program module. It should be noted that the division of the units in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.

In the case of using an integrated unit, FIG. 7 shows a block diagram of a possible functional unit composition of the network device involved in the above embodiment, where the network device is the first network device. The network device 700 includes a processing unit 702 and a communication unit 703. The processing unit 702 is used to control and manage the operation of the network device. For example, the processing unit 702 is used to support the network device to perform step 201 in FIG. 2, step 501, 504/506 in FIG. 5, and/or for text Other processes of the described technology. The communication unit 703 is used to support communication between the network device and other devices, for example, communication with the terminal shown in FIG. 6C. The network device may further include a storage unit 701 for storing code 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, etc., and the storage unit 701 may be a memory.

The processing unit 702 is used to send a first signal to the second network device through the communication unit 703, and the first signal is used to instruct the second network device to update the media access control layer control unit MAC For CE signal transmission, the first network device and the second network device provide dual connection transmission for the terminal.

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

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

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears 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 using an integrated unit, FIG. 8 shows a block diagram of a possible functional unit composition of the network device involved in the above embodiment, and the network device is a second network device. The network device 800 includes a processing unit 802 and a communication unit 803. The processing unit 802 is used to control and manage the operation of the network device. For example, the processing unit 802 is used to support the network device to perform steps 301 and 302 in FIG. 3, and steps 502, 503, 507, 508, and/or in FIG. 5. Or other processes used in the techniques described herein. The communication unit 803 is used to support communication between the network device and other devices, for example, communication with the terminal shown in FIG. 6C. The network device may further include 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, etc., and the storage unit 801 may be a memory.

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

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

In a possible example, before receiving the second signal from the first network device through the communication unit 803, the processing unit 802 is also used to send to the first network device through the communication unit 803 Confirm the message.

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

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

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

In a possible example, in terms of updating the transmission of the MAC CE signal of the media access control layer control unit according to the first signal, the processing unit 802 is specifically configured to: cancel the request to the first signal according to the first signal. The terminal sends the MAC CE signal and updates the format of the MAC CE signal.

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears 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 using an integrated unit, FIG. 9 shows a block diagram of a 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 used to control and manage the actions of the terminal. For example, the processing unit 902 is used to support the terminal to perform step 401 in FIG. 4, steps 505 and 509 in FIG. 5, and/or other techniques used in the technology 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 also include a storage unit 901, which is used to store the program codes and data of the terminal.

The processing unit 902 may be a processor or a controller, for example, it may be a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and a dedicated integrated circuit (Application- Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present application. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of DSP and microprocessor, and so on. The communication unit 903 may be a transceiver, a transceiver circuit, etc., and the storage unit 901 may be a memory.

Wherein, the processing unit 902 is used to receive the radio resource control RRC signal from the first network device through the communication unit 903 to update the target bearer of the terminal, the RRC signal is the Receiving the confirmation message from the second network device and sending it to the terminal, the confirmation message is sent after the second network device receives the first signal from the first network device, The first signal is used to instruct the second network device to update the transmission of the MAC CE signal of the media access control layer control unit. The first network device and the second network device provide dual connection transmission for the terminal.

In a possible example, the processing unit 902 is further used for the communication unit 903 to receive the updated MAC CE signal sent by the second network device.

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

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

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

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

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer.

In a possible example, the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary zone group bearer SCG bearer, a primary zone group split bearer MCG split bearer, and a secondary zone group split bearer SCG split bearer, the main regional group bears 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.

An embodiment of the present application also 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 as described in the above method embodiment Describe some or all of the steps.

An 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 network as in the above method embodiment Part or all of the steps described by the device.

An embodiment of the present application also provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing the computer program, and the computer program is operable to cause the computer to perform the method embodiment as described above Part or all of the steps described in the terminal in. The computer program product can be a software installation package.

An embodiment of the present application also provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium that stores the computer program, and the computer program is operable to cause the computer to perform the method described above. Part or all of the steps described by the road equipment. 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 hardware, or may be implemented by a processor executing software instructions. Software commands can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable In addition to programmable read-only memory (Erasable Programmable ROM, EPROM), electrically erasable and programmable read-only memory (Electrically EPROM, EEPROM), registers, hard drives, removable hard drives, CD-ROMs Or any other form of storage media well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read messages from the storage medium and can write messages to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC may be located in the access network device, the target network device, or the core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, target network device, or core network device.

Those skilled in the art should be aware 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 using software, it can be implemented in whole or in part in the form of computer program products. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website, computer, server or data The center transmits to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, Digital Video Disc (DVD)), or semiconductor media (eg, Solid State Disk) , SSD)) etc.

The specific embodiments described above further describe the purpose, technical solutions, and beneficial effects of the embodiments of the present application in detail. It should be understood that the above are only specific implementations of the embodiments of the present application, and are not used for To limit the scope of protection of the embodiments of the present application, any modifications, equivalent replacements, improvements, etc. based on the technical solutions of the embodiments of the present application should be 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

The drawings required in the embodiments or the description of the prior art will be briefly introduced below.

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

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

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

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

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

5 is a schematic flowchart of a signal control transmission method provided by an embodiment of the present application;

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

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

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

7 is a block diagram of a functional unit of a network device provided by an embodiment of the present application;

8 is a block diagram of a functional unit of a network device provided by an embodiment of the present application;

9 is a block diagram of a functional unit composition of a terminal provided by an embodiment of the present application.

201‧‧‧Step

Claims (13)

A signal control transmission method, comprising: a first network device sends a first signal to a second network device, the first signal is used to instruct the second network device to update media access control layer control Unit MAC CE signal transmission, the first network device and the second network device provide dual connection transmission for the terminal, and the first network device sends a radio resource control RRC signal to the terminal to update the The target bearer of the terminal; and the first network device sends a second signal to the second network device, the second signal is used to notify the second network device to send an updated MAC CE signal. The method according to item 1 of the patent application range, wherein the first signal is used to instruct the second network device to cancel sending the MAC CE signal to the terminal and update the format of the MAC CE signal. A signal control transmission method, comprising: a second network device receiving a first signal from a first network device, the first network device and the second network device providing dual Connection transmission; the second network device updates the transmission of the MAC CE signal of the media access control layer control unit according to the first signal, and the second network device receives the second signal from the first network device; and The second network device sends the updated MAC CE signal according to the second signal. The method according to item 3 of the patent application range, wherein the second signal is sent after the first network device sends a radio resource control RRC signal to the terminal to update the target bearer of the terminal Sent by the first network device. A signal control transmission method, characterized in that it includes: The terminal receives the radio resource control RRC signal from the first network device to update the target bearer of the terminal. The RRC signal is sent to the first network device after receiving the confirmation message from the second network device. Sent by the terminal, the confirmation 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 media access control layer controls the transmission of the MAC CE signal. The first network device and the second network device provide dual connection transmission for the terminal. The method according to item 5 of the patent application scope, characterized in that the method further comprises: the terminal receiving the updated MAC CE signal sent by the second network device. The method according to item 6 of the patent application range, wherein the updated MAC CE signal is sent by the second network device after receiving the second signal from the first network device. The method according to item 6 of the patent application scope, characterized in that before the terminal receives the updated MAC CE signal sent by the second network device, the method further includes: the terminal The second network device sends a third signal, and the third signal is used to instruct the second network device to receive a random access request initiated by the terminal, and send the updated MAC CE to the terminal after successful completion Signal. The method according to any one of items 5 to 8 of the patent application range, wherein the target bearer supports a data copy function. The method according to any one of items 5 to 8 of the patent application range, wherein the first signal is used to perform any one of the following update operations on the target bearer of the terminal: bearer establishment, bearer release, and bearer modification . The method according to any one of items 5 to 8 of the patent application range, wherein the target bearer indicated by the first signal to be updated includes at least one of the following: a secondary area group bearer SCG bearer, a main area Group split bearer MCG split bearer, auxiliary zone group split bearer SCG split bearer; or, the target bearer of the terminal updated as indicated by the first signal includes at least one of the following: auxiliary zone group bearer SCG bearer, primary zone group split bearer The MCG split bearer, the secondary regional group bears the SCG split bearer separately, and the primary regional group bears the MCG bearer. A network device, characterized in that it includes a processor, a memory, a transceiver, and one or more programs, the one or more programs are stored in the memory, and are configured by the processor Execution, the program includes instructions for executing the steps in the method as described in any of items 1-4 and 9-11 of the patent application scope. A terminal, characterized in that it includes a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory, and are configured to be executed by the processor, The program includes instructions for performing the steps in the method as described in any one of claims 5-11.

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